?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
git-svn: Remove obsolete MAXPARENT check
[git.git] / git-svn.perl
blob36709607f2d3865cea3b607851d8db478eebdf3a
1 #!/usr/bin/env perl
2 # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3 # License: GPL v2 or later
4 use warnings;
5 use strict;
6 use vars qw/ $AUTHOR $VERSION
7 $sha1 $sha1_short $_revision $_repository
8 $_q $_authors $_authors_prog %users/;
9 $AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
10 $VERSION = '@@GIT_VERSION@@';
11
12 # From which subdir have we been invoked?
13 my $cmd_dir_prefix = eval {
14 command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
15 } || '';
16
17 my $git_dir_user_set = 1 if defined $ENV{GIT_DIR};
18 $ENV{GIT_DIR} ||= '.git';
19 $Git::SVN::default_repo_id = 'svn';
20 $Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
21 $Git::SVN::Ra::_log_window_size = 100;
22 $Git::SVN::_minimize_url = 'unset';
23
24 if (! exists $ENV{SVN_SSH}) {
25 if (exists $ENV{GIT_SSH}) {
26 $ENV{SVN_SSH} = $ENV{GIT_SSH};
27 if ($^O eq 'msys') {
28 $ENV{SVN_SSH} =~ s/\\/\\\\/g;
29 }
30 }
31 }
32
33 $Git::SVN::Log::TZ = $ENV{TZ};
34 $ENV{TZ} = 'UTC';
35 $| = 1; # unbuffer STDOUT
36
37 sub fatal (@) { print STDERR "@_\n"; exit 1 }
38 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
39 require SVN::Ra;
40 require SVN::Delta;
41 if ($SVN::Core::VERSION lt '1.1.0') {
42 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
43 }
44 my $can_compress = eval { require Compress::Zlib; 1};
45 push @Git::SVN::Ra::ISA, 'SVN::Ra';
46 push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
47 push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
48 use Carp qw/croak/;
49 use Digest::MD5;
50 use IO::File qw//;
51 use File::Basename qw/dirname basename/;
52 use File::Path qw/mkpath/;
53 use File::Spec;
54 use File::Find;
55 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
56 use IPC::Open3;
57 use Git;
58
59 BEGIN {
60 # import functions from Git into our packages, en masse
61 no strict 'refs';
62 foreach (qw/command command_oneline command_noisy command_output_pipe
63 command_input_pipe command_close_pipe
64 command_bidi_pipe command_close_bidi_pipe/) {
65 for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher
66 Git::SVN::Migration Git::SVN::Log Git::SVN),
67 __PACKAGE__) {
68 *{"${package}::$_"} = \&{"Git::$_"};
69 }
70 }
71 }
72
73 my ($SVN);
74
75 $sha1 = qr/[a-f\d]{40}/;
76 $sha1_short = qr/[a-f\d]{4,40}/;
77 my ($_stdin, $_help, $_edit,
78 $_message, $_file, $_branch_dest,
79 $_template, $_shared,
80 $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
81 $_merge, $_strategy, $_dry_run, $_local,
82 $_prefix, $_no_checkout, $_url, $_verbose,
83 $_git_format, $_commit_url, $_tag);
84 $Git::SVN::_follow_parent = 1;
85 $_q ||= 0;
86 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
87 'config-dir=s' => \$Git::SVN::Ra::config_dir,
88 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
89 'ignore-paths=s' => \$SVN::Git::Fetcher::_ignore_regex );
90 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
91 'authors-file|A=s' => \$_authors,
92 'authors-prog=s' => \$_authors_prog,
93 'repack:i' => \$Git::SVN::_repack,
94 'noMetadata' => \$Git::SVN::_no_metadata,
95 'useSvmProps' => \$Git::SVN::_use_svm_props,
96 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
97 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
98 'no-checkout' => \$_no_checkout,
99 'quiet|q+' => \$_q,
100 'repack-flags|repack-args|repack-opts=s' =>
101 \$Git::SVN::_repack_flags,
102 'use-log-author' => \$Git::SVN::_use_log_author,
103 'add-author-from' => \$Git::SVN::_add_author_from,
104 'localtime' => \$Git::SVN::_localtime,
105 %remote_opts );
106
107 my ($_trunk, @_tags, @_branches, $_stdlayout);
108 my %icv;
109 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
110 'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags,
111 'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix,
112 'stdlayout|s' => \$_stdlayout,
113 'minimize-url|m!' => \$Git::SVN::_minimize_url,
114 'no-metadata' => sub { $icv{noMetadata} = 1 },
115 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
116 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
117 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
118 %remote_opts );
119 my %cmt_opts = ( 'edit|e' => \$_edit,
120 'rmdir' => \$SVN::Git::Editor::_rmdir,
121 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
122 'l=i' => \$SVN::Git::Editor::_rename_limit,
123 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
124 );
125
126 my %cmd = (
127 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
128 { 'revision|r=s' => \$_revision,
129 'fetch-all|all' => \$_fetch_all,
130 'parent|p' => \$_fetch_parent,
131 %fc_opts } ],
132 clone => [ \&cmd_clone, "Initialize and fetch revisions",
133 { 'revision|r=s' => \$_revision,
134 %fc_opts, %init_opts } ],
135 init => [ \&cmd_init, "Initialize a repo for tracking" .
136 " (requires URL argument)",
137 \%init_opts ],
138 'multi-init' => [ \&cmd_multi_init,
139 "Deprecated alias for ".
140 "'$0 init -T<trunk> -b<branches> -t<tags>'",
141 \%init_opts ],
142 dcommit => [ \&cmd_dcommit,
143 'Commit several diffs to merge with upstream',
144 { 'merge|m|M' => \$_merge,
145 'strategy|s=s' => \$_strategy,
146 'verbose|v' => \$_verbose,
147 'dry-run|n' => \$_dry_run,
148 'fetch-all|all' => \$_fetch_all,
149 'commit-url=s' => \$_commit_url,
150 'revision|r=i' => \$_revision,
151 'no-rebase' => \$_no_rebase,
152 %cmt_opts, %fc_opts } ],
153 branch => [ \&cmd_branch,
154 'Create a branch in the SVN repository',
155 { 'message|m=s' => \$_message,
156 'destination|d=s' => \$_branch_dest,
157 'dry-run|n' => \$_dry_run,
158 'tag|t' => \$_tag } ],
159 tag => [ sub { $_tag = 1; cmd_branch(@_) },
160 'Create a tag in the SVN repository',
161 { 'message|m=s' => \$_message,
162 'destination|d=s' => \$_branch_dest,
163 'dry-run|n' => \$_dry_run } ],
164 'set-tree' => [ \&cmd_set_tree,
165 "Set an SVN repository to a git tree-ish",
166 { 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ],
167 'create-ignore' => [ \&cmd_create_ignore,
168 'Create a .gitignore per svn:ignore',
169 { 'revision|r=i' => \$_revision
170 } ],
171 'mkdirs' => [ \&cmd_mkdirs ,
172 "recreate empty directories after a checkout",
173 { 'revision|r=i' => \$_revision } ],
174 'propget' => [ \&cmd_propget,
175 'Print the value of a property on a file or directory',
176 { 'revision|r=i' => \$_revision } ],
177 'proplist' => [ \&cmd_proplist,
178 'List all properties of a file or directory',
179 { 'revision|r=i' => \$_revision } ],
180 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
181 { 'revision|r=i' => \$_revision
182 } ],
183 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
184 { 'revision|r=i' => \$_revision
185 } ],
186 'multi-fetch' => [ \&cmd_multi_fetch,
187 "Deprecated alias for $0 fetch --all",
188 { 'revision|r=s' => \$_revision, %fc_opts } ],
189 'migrate' => [ sub { },
190 # no-op, we automatically run this anyways,
191 'Migrate configuration/metadata/layout from
192 previous versions of git-svn',
193 { 'minimize' => \$Git::SVN::Migration::_minimize,
194 %remote_opts } ],
195 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
196 { 'limit=i' => \$Git::SVN::Log::limit,
197 'revision|r=s' => \$_revision,
198 'verbose|v' => \$Git::SVN::Log::verbose,
199 'incremental' => \$Git::SVN::Log::incremental,
200 'oneline' => \$Git::SVN::Log::oneline,
201 'show-commit' => \$Git::SVN::Log::show_commit,
202 'non-recursive' => \$Git::SVN::Log::non_recursive,
203 'authors-file|A=s' => \$_authors,
204 'color' => \$Git::SVN::Log::color,
205 'pager=s' => \$Git::SVN::Log::pager
206 } ],
207 'find-rev' => [ \&cmd_find_rev,
208 "Translate between SVN revision numbers and tree-ish",
209 {} ],
210 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
211 { 'merge|m|M' => \$_merge,
212 'verbose|v' => \$_verbose,
213 'strategy|s=s' => \$_strategy,
214 'local|l' => \$_local,
215 'fetch-all|all' => \$_fetch_all,
216 'dry-run|n' => \$_dry_run,
217 %fc_opts } ],
218 'commit-diff' => [ \&cmd_commit_diff,
219 'Commit a diff between two trees',
220 { 'message|m=s' => \$_message,
221 'file|F=s' => \$_file,
222 'revision|r=s' => \$_revision,
223 %cmt_opts } ],
224 'info' => [ \&cmd_info,
225 "Show info about the latest SVN revision
226 on the current branch",
227 { 'url' => \$_url, } ],
228 'blame' => [ \&Git::SVN::Log::cmd_blame,
229 "Show what revision and author last modified each line of a file",
230 { 'git-format' => \$_git_format } ],
231 'reset' => [ \&cmd_reset,
232 "Undo fetches back to the specified SVN revision",
233 { 'revision|r=s' => \$_revision,
234 'parent|p' => \$_fetch_parent } ],
235 'gc' => [ \&cmd_gc,
236 "Compress unhandled.log files in .git/svn and remove " .
237 "index files in .git/svn",
238 {} ],
239 );
240
241 my $cmd;
242 for (my $i = 0; $i < @ARGV; $i++) {
243 if (defined $cmd{$ARGV[$i]}) {
244 $cmd = $ARGV[$i];
245 splice @ARGV, $i, 1;
246 last;
247 } elsif ($ARGV[$i] eq 'help') {
248 $cmd = $ARGV[$i+1];
249 usage(0);
250 }
251 };
252
253 # make sure we're always running at the top-level working directory
254 unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
255 unless (-d $ENV{GIT_DIR}) {
256 if ($git_dir_user_set) {
257 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
258 "but it is not a directory\n";
259 }
260 my $git_dir = delete $ENV{GIT_DIR};
261 my $cdup = undef;
262 git_cmd_try {
263 $cdup = command_oneline(qw/rev-parse --show-cdup/);
264 $git_dir = '.' unless ($cdup);
265 chomp $cdup if ($cdup);
266 $cdup = "." unless ($cdup && length $cdup);
267 } "Already at toplevel, but $git_dir not found\n";
268 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
269 unless (-d $git_dir) {
270 die "$git_dir still not found after going to ",
271 "'$cdup'\n";
272 }
273 $ENV{GIT_DIR} = $git_dir;
274 }
275 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
276 }
277
278 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
279
280 read_git_config(\%opts);
281 if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
282 Getopt::Long::Configure('pass_through');
283 }
284 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
285 'minimize-connections' => \$Git::SVN::Migration::_minimize,
286 'id|i=s' => \$Git::SVN::default_ref_id,
287 'svn-remote|remote|R=s' => sub {
288 $Git::SVN::no_reuse_existing = 1;
289 $Git::SVN::default_repo_id = $_[1] });
290 exit 1 if (!$rv && $cmd && $cmd ne 'log');
291
292 usage(0) if $_help;
293 version() if $_version;
294 usage(1) unless defined $cmd;
295 load_authors() if $_authors;
296 if (defined $_authors_prog) {
297 $_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'";
298 }
299
300 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
301 Git::SVN::Migration::migration_check();
302 }
303 Git::SVN::init_vars();
304 eval {
305 Git::SVN::verify_remotes_sanity();
306 $cmd{$cmd}->[0]->(@ARGV);
307 };
308 fatal $@ if $@;
309 post_fetch_checkout();
310 exit 0;
311
312 ####################### primary functions ######################
313 sub usage {
314 my $exit = shift || 0;
315 my $fd = $exit ? \*STDERR : \*STDOUT;
316 print $fd <<"";
317 git-svn - bidirectional operations between a single Subversion tree and git
318 Usage: git svn <command> [options] [arguments]\n
319
320 print $fd "Available commands:\n" unless $cmd;
321
322 foreach (sort keys %cmd) {
323 next if $cmd && $cmd ne $_;
324 next if /^multi-/; # don't show deprecated commands
325 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
326 foreach (sort keys %{$cmd{$_}->[2]}) {
327 # mixed-case options are for .git/config only
328 next if /[A-Z]/ && /^[a-z]+$/i;
329 # prints out arguments as they should be passed:
330 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
331 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
332 "--$_" : "-$_" }
333 split /\|/,$_)," $x\n";
334 }
335 }
336 print $fd <<"";
337 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
338 arbitrary identifier if you're tracking multiple SVN branches/repositories in
339 one git repository and want to keep them separate. See git-svn(1) for more
340 information.
341
342 exit $exit;
343 }
344
345 sub version {
346 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
347 exit 0;
348 }
349
350 sub do_git_init_db {
351 unless (-d $ENV{GIT_DIR}) {
352 my @init_db = ('init');
353 push @init_db, "--template=$_template" if defined $_template;
354 if (defined $_shared) {
355 if ($_shared =~ /[a-z]/) {
356 push @init_db, "--shared=$_shared";
357 } else {
358 push @init_db, "--shared";
359 }
360 }
361 command_noisy(@init_db);
362 $_repository = Git->repository(Repository => ".git");
363 }
364 command_noisy('config', 'core.autocrlf', 'false');
365 my $set;
366 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
367 foreach my $i (keys %icv) {
368 die "'$set' and '$i' cannot both be set\n" if $set;
369 next unless defined $icv{$i};
370 command_noisy('config', "$pfx.$i", $icv{$i});
371 $set = $i;
372 }
373 my $ignore_regex = \$SVN::Git::Fetcher::_ignore_regex;
374 command_noisy('config', "$pfx.ignore-paths", $$ignore_regex)
375 if defined $$ignore_regex;
376 }
377
378 sub init_subdir {
379 my $repo_path = shift or return;
380 mkpath([$repo_path]) unless -d $repo_path;
381 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
382 $ENV{GIT_DIR} = '.git';
383 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
384 }
385
386 sub cmd_clone {
387 my ($url, $path) = @_;
388 if (!defined $path &&
389 (defined $_trunk || @_branches || @_tags ||
390 defined $_stdlayout) &&
391 $url !~ m#^[a-z\+]+://#) {
392 $path = $url;
393 }
394 $path = basename($url) if !defined $path || !length $path;
395 my $authors_absolute = $_authors ? File::Spec->rel2abs($_authors) : "";
396 cmd_init($url, $path);
397 command_oneline('config', 'svn.authorsfile', $authors_absolute)
398 if $_authors;
399 Git::SVN::fetch_all($Git::SVN::default_repo_id);
400 }
401
402 sub cmd_init {
403 if (defined $_stdlayout) {
404 $_trunk = 'trunk' if (!defined $_trunk);
405 @_tags = 'tags' if (! @_tags);
406 @_branches = 'branches' if (! @_branches);
407 }
408 if (defined $_trunk || @_branches || @_tags) {
409 return cmd_multi_init(@_);
410 }
411 my $url = shift or die "SVN repository location required ",
412 "as a command-line argument\n";
413 $url = canonicalize_url($url);
414 init_subdir(@_);
415 do_git_init_db();
416
417 if ($Git::SVN::_minimize_url eq 'unset') {
418 $Git::SVN::_minimize_url = 0;
419 }
420
421 Git::SVN->init($url);
422 }
423
424 sub cmd_fetch {
425 if (grep /^\d+=./, @_) {
426 die "'<rev>=<commit>' fetch arguments are ",
427 "no longer supported.\n";
428 }
429 my ($remote) = @_;
430 if (@_ > 1) {
431 die "Usage: $0 fetch [--all] [--parent] [svn-remote]\n";
432 }
433 $Git::SVN::no_reuse_existing = undef;
434 if ($_fetch_parent) {
435 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
436 unless ($gs) {
437 die "Unable to determine upstream SVN information from ",
438 "working tree history\n";
439 }
440 # just fetch, don't checkout.
441 $_no_checkout = 'true';
442 $_fetch_all ? $gs->fetch_all : $gs->fetch;
443 } elsif ($_fetch_all) {
444 cmd_multi_fetch();
445 } else {
446 $remote ||= $Git::SVN::default_repo_id;
447 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
448 }
449 }
450
451 sub cmd_set_tree {
452 my (@commits) = @_;
453 if ($_stdin || !@commits) {
454 print "Reading from stdin...\n";
455 @commits = ();
456 while (<STDIN>) {
457 if (/\b($sha1_short)\b/o) {
458 unshift @commits, $1;
459 }
460 }
461 }
462 my @revs;
463 foreach my $c (@commits) {
464 my @tmp = command('rev-parse',$c);
465 if (scalar @tmp == 1) {
466 push @revs, $tmp[0];
467 } elsif (scalar @tmp > 1) {
468 push @revs, reverse(command('rev-list',@tmp));
469 } else {
470 fatal "Failed to rev-parse $c";
471 }
472 }
473 my $gs = Git::SVN->new;
474 my ($r_last, $cmt_last) = $gs->last_rev_commit;
475 $gs->fetch;
476 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
477 fatal "There are new revisions that were fetched ",
478 "and need to be merged (or acknowledged) ",
479 "before committing.\nlast rev: $r_last\n",
480 " current: $gs->{last_rev}";
481 }
482 $gs->set_tree($_) foreach @revs;
483 print "Done committing ",scalar @revs," revisions to SVN\n";
484 unlink $gs->{index};
485 }
486
487 sub cmd_dcommit {
488 my $head = shift;
489 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) }
490 'Cannot dcommit with a dirty index. Commit your changes first, '
491 . "or stash them with `git stash'.\n";
492 $head ||= 'HEAD';
493
494 my $old_head;
495 if ($head ne 'HEAD') {
496 $old_head = eval {
497 command_oneline([qw/symbolic-ref -q HEAD/])
498 };
499 if ($old_head) {
500 $old_head =~ s{^refs/heads/}{};
501 } else {
502 $old_head = eval { command_oneline(qw/rev-parse HEAD/) };
503 }
504 command(['checkout', $head], STDERR => 0);
505 }
506
507 my @refs;
508 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
509 unless ($gs) {
510 die "Unable to determine upstream SVN information from ",
511 "$head history.\nPerhaps the repository is empty.";
512 }
513
514 if (defined $_commit_url) {
515 $url = $_commit_url;
516 } else {
517 $url = eval { command_oneline('config', '--get',
518 "svn-remote.$gs->{repo_id}.commiturl") };
519 if (!$url) {
520 $url = $gs->full_url
521 }
522 }
523
524 my $last_rev = $_revision if defined $_revision;
525 if ($url) {
526 print "Committing to $url ...\n";
527 }
528 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
529 if ($_no_rebase && scalar(@$linear_refs) > 1) {
530 warn "Attempting to commit more than one change while ",
531 "--no-rebase is enabled.\n",
532 "If these changes depend on each other, re-running ",
533 "without --no-rebase may be required."
534 }
535 my $expect_url = $url;
536 Git::SVN::remove_username($expect_url);
537 while (1) {
538 my $d = shift @$linear_refs or last;
539 unless (defined $last_rev) {
540 (undef, $last_rev, undef) = cmt_metadata("$d~1");
541 unless (defined $last_rev) {
542 fatal "Unable to extract revision information ",
543 "from commit $d~1";
544 }
545 }
546 if ($_dry_run) {
547 print "diff-tree $d~1 $d\n";
548 } else {
549 my $cmt_rev;
550 my %ed_opts = ( r => $last_rev,
551 log => get_commit_entry($d)->{log},
552 ra => Git::SVN::Ra->new($url),
553 config => SVN::Core::config_get_config(
554 $Git::SVN::Ra::config_dir
555 ),
556 tree_a => "$d~1",
557 tree_b => $d,
558 editor_cb => sub {
559 print "Committed r$_[0]\n";
560 $cmt_rev = $_[0];
561 },
562 svn_path => '');
563 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
564 print "No changes\n$d~1 == $d\n";
565 } elsif ($parents->{$d} && @{$parents->{$d}}) {
566 $gs->{inject_parents_dcommit}->{$cmt_rev} =
567 $parents->{$d};
568 }
569 $_fetch_all ? $gs->fetch_all : $gs->fetch;
570 $last_rev = $cmt_rev;
571 next if $_no_rebase;
572
573 # we always want to rebase against the current HEAD,
574 # not any head that was passed to us
575 my @diff = command('diff-tree', $d,
576 $gs->refname, '--');
577 my @finish;
578 if (@diff) {
579 @finish = rebase_cmd();
580 print STDERR "W: $d and ", $gs->refname,
581 " differ, using @finish:\n",
582 join("\n", @diff), "\n";
583 } else {
584 print "No changes between current HEAD and ",
585 $gs->refname,
586 "\nResetting to the latest ",
587 $gs->refname, "\n";
588 @finish = qw/reset --mixed/;
589 }
590 command_noisy(@finish, $gs->refname);
591 if (@diff) {
592 @refs = ();
593 my ($url_, $rev_, $uuid_, $gs_) =
594 working_head_info('HEAD', \@refs);
595 my ($linear_refs_, $parents_) =
596 linearize_history($gs_, \@refs);
597 if (scalar(@$linear_refs) !=
598 scalar(@$linear_refs_)) {
599 fatal "# of revisions changed ",
600 "\nbefore:\n",
601 join("\n", @$linear_refs),
602 "\n\nafter:\n",
603 join("\n", @$linear_refs_), "\n",
604 'If you are attempting to commit ',
605 "merges, try running:\n\t",
606 'git rebase --interactive',
607 '--preserve-merges ',
608 $gs->refname,
609 "\nBefore dcommitting";
610 }
611 if ($url_ ne $expect_url) {
612 if ($url_ eq $gs->metadata_url) {
613 print
614 "Accepting rewritten URL:",
615 " $url_\n";
616 } else {
617 fatal
618 "URL mismatch after rebase:",
619 " $url_ != $expect_url";
620 }
621 }
622 if ($uuid_ ne $uuid) {
623 fatal "uuid mismatch after rebase: ",
624 "$uuid_ != $uuid";
625 }
626 # remap parents
627 my (%p, @l, $i);
628 for ($i = 0; $i < scalar @$linear_refs; $i++) {
629 my $new = $linear_refs_->[$i] or next;
630 $p{$new} =
631 $parents->{$linear_refs->[$i]};
632 push @l, $new;
633 }
634 $parents = \%p;
635 $linear_refs = \@l;
636 }
637 }
638 }
639
640 if ($old_head) {
641 my $new_head = command_oneline(qw/rev-parse HEAD/);
642 my $new_is_symbolic = eval {
643 command_oneline(qw/symbolic-ref -q HEAD/);
644 };
645 if ($new_is_symbolic) {
646 print "dcommitted the branch ", $head, "\n";
647 } else {
648 print "dcommitted on a detached HEAD because you gave ",
649 "a revision argument.\n",
650 "The rewritten commit is: ", $new_head, "\n";
651 }
652 command(['checkout', $old_head], STDERR => 0);
653 }
654
655 unlink $gs->{index};
656 }
657
658 sub cmd_branch {
659 my ($branch_name, $head) = @_;
660
661 unless (defined $branch_name && length $branch_name) {
662 die(($_tag ? "tag" : "branch") . " name required\n");
663 }
664 $head ||= 'HEAD';
665
666 my ($src, $rev, undef, $gs) = working_head_info($head);
667
668 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
669 my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
670 my $glob;
671 if ($#{$allglobs} == 0) {
672 $glob = $allglobs->[0];
673 } else {
674 unless(defined $_branch_dest) {
675 die "Multiple ",
676 $_tag ? "tag" : "branch",
677 " paths defined for Subversion repository.\n",
678 "You must specify where you want to create the ",
679 $_tag ? "tag" : "branch",
680 " with the --destination argument.\n";
681 }
682 foreach my $g (@{$allglobs}) {
683 # SVN::Git::Editor could probably be moved to Git.pm..
684 my $re = SVN::Git::Editor::glob2pat($g->{path}->{left});
685 if ($_branch_dest =~ /$re/) {
686 $glob = $g;
687 last;
688 }
689 }
690 unless (defined $glob) {
691 my $dest_re = qr/\b\Q$_branch_dest\E\b/;
692 foreach my $g (@{$allglobs}) {
693 $g->{path}->{left} =~ /$dest_re/ or next;
694 if (defined $glob) {
695 die "Ambiguous destination: ",
696 $_branch_dest, "\nmatches both '",
697 $glob->{path}->{left}, "' and '",
698 $g->{path}->{left}, "'\n";
699 }
700 $glob = $g;
701 }
702 unless (defined $glob) {
703 die "Unknown ",
704 $_tag ? "tag" : "branch",
705 " destination $_branch_dest\n";
706 }
707 }
708 }
709 my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
710 my $dst = join '/', $remote->{url}, $lft, $branch_name, ($rgt || ());
711
712 my $ctx = SVN::Client->new(
713 auth => Git::SVN::Ra::_auth_providers(),
714 log_msg => sub {
715 ${ $_[0] } = defined $_message
716 ? $_message
717 : 'Create ' . ($_tag ? 'tag ' : 'branch ' )
718 . $branch_name;
719 },
720 );
721
722 eval {
723 $ctx->ls($dst, 'HEAD', 0);
724 } and die "branch ${branch_name} already exists\n";
725
726 print "Copying ${src} at r${rev} to ${dst}...\n";
727 $ctx->copy($src, $rev, $dst)
728 unless $_dry_run;
729
730 $gs->fetch_all;
731 }
732
733 sub cmd_find_rev {
734 my $revision_or_hash = shift or die "SVN or git revision required ",
735 "as a command-line argument\n";
736 my $result;
737 if ($revision_or_hash =~ /^r\d+$/) {
738 my $head = shift;
739 $head ||= 'HEAD';
740 my @refs;
741 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
742 unless ($gs) {
743 die "Unable to determine upstream SVN information from ",
744 "$head history\n";
745 }
746 my $desired_revision = substr($revision_or_hash, 1);
747 $result = $gs->rev_map_get($desired_revision, $uuid);
748 } else {
749 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
750 $result = $rev;
751 }
752 print "$result\n" if $result;
753 }
754
755 sub cmd_rebase {
756 command_noisy(qw/update-index --refresh/);
757 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
758 unless ($gs) {
759 die "Unable to determine upstream SVN information from ",
760 "working tree history\n";
761 }
762 if ($_dry_run) {
763 print "Remote Branch: " . $gs->refname . "\n";
764 print "SVN URL: " . $url . "\n";
765 return;
766 }
767 if (command(qw/diff-index HEAD --/)) {
768 print STDERR "Cannot rebase with uncommited changes:\n";
769 command_noisy('status');
770 exit 1;
771 }
772 unless ($_local) {
773 # rebase will checkout for us, so no need to do it explicitly
774 $_no_checkout = 'true';
775 $_fetch_all ? $gs->fetch_all : $gs->fetch;
776 }
777 command_noisy(rebase_cmd(), $gs->refname);
778 $gs->mkemptydirs;
779 }
780
781 sub cmd_show_ignore {
782 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
783 $gs ||= Git::SVN->new;
784 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
785 $gs->prop_walk($gs->{path}, $r, sub {
786 my ($gs, $path, $props) = @_;
787 print STDOUT "\n# $path\n";
788 my $s = $props->{'svn:ignore'} or return;
789 $s =~ s/[\r\n]+/\n/g;
790 $s =~ s/^\n+//;
791 chomp $s;
792 $s =~ s#^#$path#gm;
793 print STDOUT "$s\n";
794 });
795 }
796
797 sub cmd_show_externals {
798 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
799 $gs ||= Git::SVN->new;
800 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
801 $gs->prop_walk($gs->{path}, $r, sub {
802 my ($gs, $path, $props) = @_;
803 print STDOUT "\n# $path\n";
804 my $s = $props->{'svn:externals'} or return;
805 $s =~ s/[\r\n]+/\n/g;
806 chomp $s;
807 $s =~ s#^#$path#gm;
808 print STDOUT "$s\n";
809 });
810 }
811
812 sub cmd_create_ignore {
813 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
814 $gs ||= Git::SVN->new;
815 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
816 $gs->prop_walk($gs->{path}, $r, sub {
817 my ($gs, $path, $props) = @_;
818 # $path is of the form /path/to/dir/
819 $path = '.' . $path;
820 # SVN can have attributes on empty directories,
821 # which git won't track
822 mkpath([$path]) unless -d $path;
823 my $ignore = $path . '.gitignore';
824 my $s = $props->{'svn:ignore'} or return;
825 open(GITIGNORE, '>', $ignore)
826 or fatal("Failed to open `$ignore' for writing: $!");
827 $s =~ s/[\r\n]+/\n/g;
828 $s =~ s/^\n+//;
829 chomp $s;
830 # Prefix all patterns so that the ignore doesn't apply
831 # to sub-directories.
832 $s =~ s#^#/#gm;
833 print GITIGNORE "$s\n";
834 close(GITIGNORE)
835 or fatal("Failed to close `$ignore': $!");
836 command_noisy('add', '-f', $ignore);
837 });
838 }
839
840 sub cmd_mkdirs {
841 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
842 $gs ||= Git::SVN->new;
843 $gs->mkemptydirs($_revision);
844 }
845
846 sub canonicalize_path {
847 my ($path) = @_;
848 my $dot_slash_added = 0;
849 if (substr($path, 0, 1) ne "/") {
850 $path = "./" . $path;
851 $dot_slash_added = 1;
852 }
853 # File::Spec->canonpath doesn't collapse x/../y into y (for a
854 # good reason), so let's do this manually.
855 $path =~ s#/+#/#g;
856 $path =~ s#/\.(?:/|$)#/#g;
857 $path =~ s#/[^/]+/\.\.##g;
858 $path =~ s#/$##g;
859 $path =~ s#^\./## if $dot_slash_added;
860 $path =~ s#^/##;
861 $path =~ s#^\.$##;
862 return $path;
863 }
864
865 sub canonicalize_url {
866 my ($url) = @_;
867 $url =~ s#^([^:]+://[^/]*/)(.*)$#$1 . canonicalize_path($2)#e;
868 return $url;
869 }
870
871 # get_svnprops(PATH)
872 # ------------------
873 # Helper for cmd_propget and cmd_proplist below.
874 sub get_svnprops {
875 my $path = shift;
876 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
877 $gs ||= Git::SVN->new;
878
879 # prefix THE PATH by the sub-directory from which the user
880 # invoked us.
881 $path = $cmd_dir_prefix . $path;
882 fatal("No such file or directory: $path") unless -e $path;
883 my $is_dir = -d $path ? 1 : 0;
884 $path = $gs->{path} . '/' . $path;
885
886 # canonicalize the path (otherwise libsvn will abort or fail to
887 # find the file)
888 $path = canonicalize_path($path);
889
890 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
891 my $props;
892 if ($is_dir) {
893 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
894 }
895 else {
896 (undef, $props) = $gs->ra->get_file($path, $r, undef);
897 }
898 return $props;
899 }
900
901 # cmd_propget (PROP, PATH)
902 # ------------------------
903 # Print the SVN property PROP for PATH.
904 sub cmd_propget {
905 my ($prop, $path) = @_;
906 $path = '.' if not defined $path;
907 usage(1) if not defined $prop;
908 my $props = get_svnprops($path);
909 if (not defined $props->{$prop}) {
910 fatal("`$path' does not have a `$prop' SVN property.");
911 }
912 print $props->{$prop} . "\n";
913 }
914
915 # cmd_proplist (PATH)
916 # -------------------
917 # Print the list of SVN properties for PATH.
918 sub cmd_proplist {
919 my $path = shift;
920 $path = '.' if not defined $path;
921 my $props = get_svnprops($path);
922 print "Properties on '$path':\n";
923 foreach (sort keys %{$props}) {
924 print " $_\n";
925 }
926 }
927
928 sub cmd_multi_init {
929 my $url = shift;
930 unless (defined $_trunk || @_branches || @_tags) {
931 usage(1);
932 }
933
934 $_prefix = '' unless defined $_prefix;
935 if (defined $url) {
936 $url = canonicalize_url($url);
937 init_subdir(@_);
938 }
939 do_git_init_db();
940 if (defined $_trunk) {
941 my $trunk_ref = 'refs/remotes/' . $_prefix . 'trunk';
942 # try both old-style and new-style lookups:
943 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
944 unless ($gs_trunk) {
945 my ($trunk_url, $trunk_path) =
946 complete_svn_url($url, $_trunk);
947 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
948 undef, $trunk_ref);
949 }
950 }
951 return unless @_branches || @_tags;
952 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
953 foreach my $path (@_branches) {
954 complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
955 }
956 foreach my $path (@_tags) {
957 complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
958 }
959 }
960
961 sub cmd_multi_fetch {
962 $Git::SVN::no_reuse_existing = undef;
963 my $remotes = Git::SVN::read_all_remotes();
964 foreach my $repo_id (sort keys %$remotes) {
965 if ($remotes->{$repo_id}->{url}) {
966 Git::SVN::fetch_all($repo_id, $remotes);
967 }
968 }
969 }
970
971 # this command is special because it requires no metadata
972 sub cmd_commit_diff {
973 my ($ta, $tb, $url) = @_;
974 my $usage = "Usage: $0 commit-diff -r<revision> ".
975 "<tree-ish> <tree-ish> [<URL>]";
976 fatal($usage) if (!defined $ta || !defined $tb);
977 my $svn_path = '';
978 if (!defined $url) {
979 my $gs = eval { Git::SVN->new };
980 if (!$gs) {
981 fatal("Needed URL or usable git-svn --id in ",
982 "the command-line\n", $usage);
983 }
984 $url = $gs->{url};
985 $svn_path = $gs->{path};
986 }
987 unless (defined $_revision) {
988 fatal("-r|--revision is a required argument\n", $usage);
989 }
990 if (defined $_message && defined $_file) {
991 fatal("Both --message/-m and --file/-F specified ",
992 "for the commit message.\n",
993 "I have no idea what you mean");
994 }
995 if (defined $_file) {
996 $_message = file_to_s($_file);
997 } else {
998 $_message ||= get_commit_entry($tb)->{log};
999 }
1000 my $ra ||= Git::SVN::Ra->new($url);
1001 my $r = $_revision;
1002 if ($r eq 'HEAD') {
1003 $r = $ra->get_latest_revnum;
1004 } elsif ($r !~ /^\d+$/) {
1005 die "revision argument: $r not understood by git-svn\n";
1006 }
1007 my %ed_opts = ( r => $r,
1008 log => $_message,
1009 ra => $ra,
1010 tree_a => $ta,
1011 tree_b => $tb,
1012 editor_cb => sub { print "Committed r$_[0]\n" },
1013 svn_path => $svn_path );
1014 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
1015 print "No changes\n$ta == $tb\n";
1016 }
1017 }
1018
1019 sub escape_uri_only {
1020 my ($uri) = @_;
1021 my @tmp;
1022 foreach (split m{/}, $uri) {
1023 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
1024 push @tmp, $_;
1025 }
1026 join('/', @tmp);
1027 }
1028
1029 sub escape_url {
1030 my ($url) = @_;
1031 if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) {
1032 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
1033 $url = "$scheme://$domain$uri";
1034 }
1035 $url;
1036 }
1037
1038 sub cmd_info {
1039 my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
1040 my $fullpath = canonicalize_path($cmd_dir_prefix . $path);
1041 if (exists $_[1]) {
1042 die "Too many arguments specified\n";
1043 }
1044
1045 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
1046
1047 if (!$file_type && !$diff_status) {
1048 print STDERR "svn: '$path' is not under version control\n";
1049 exit 1;
1050 }
1051
1052 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1053 unless ($gs) {
1054 die "Unable to determine upstream SVN information from ",
1055 "working tree history\n";
1056 }
1057
1058 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
1059 $path = "." if $path eq "";
1060
1061 my $full_url = $url . ($fullpath eq "" ? "" : "/$fullpath");
1062
1063 if ($_url) {
1064 print escape_url($full_url), "\n";
1065 return;
1066 }
1067
1068 my $result = "Path: $path\n";
1069 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
1070 $result .= "URL: " . escape_url($full_url) . "\n";
1071
1072 eval {
1073 my $repos_root = $gs->repos_root;
1074 Git::SVN::remove_username($repos_root);
1075 $result .= "Repository Root: " . escape_url($repos_root) . "\n";
1076 };
1077 if ($@) {
1078 $result .= "Repository Root: (offline)\n";
1079 }
1080 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
1081 ($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir");
1082 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
1083
1084 $result .= "Node Kind: " .
1085 ($file_type eq "dir" ? "directory" : "file") . "\n";
1086
1087 my $schedule = $diff_status eq "A"
1088 ? "add"
1089 : ($diff_status eq "D" ? "delete" : "normal");
1090 $result .= "Schedule: $schedule\n";
1091
1092 if ($diff_status eq "A") {
1093 print $result, "\n";
1094 return;
1095 }
1096
1097 my ($lc_author, $lc_rev, $lc_date_utc);
1098 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $fullpath);
1099 my $log = command_output_pipe(@args);
1100 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
1101 while (<$log>) {
1102 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
1103 $lc_author = $1;
1104 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
1105 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
1106 (undef, $lc_rev, undef) = ::extract_metadata($1);
1107 }
1108 }
1109 close $log;
1110
1111 Git::SVN::Log::set_local_timezone();
1112
1113 $result .= "Last Changed Author: $lc_author\n";
1114 $result .= "Last Changed Rev: $lc_rev\n";
1115 $result .= "Last Changed Date: " .
1116 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
1117
1118 if ($file_type ne "dir") {
1119 my $text_last_updated_date =
1120 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
1121 $result .=
1122 "Text Last Updated: " .
1123 Git::SVN::Log::format_svn_date($text_last_updated_date) .
1124 "\n";
1125 my $checksum;
1126 if ($diff_status eq "D") {
1127 my ($fh, $ctx) =
1128 command_output_pipe(qw(cat-file blob), "HEAD:$path");
1129 if ($file_type eq "link") {
1130 my $file_name = <$fh>;
1131 $checksum = md5sum("link $file_name");
1132 } else {
1133 $checksum = md5sum($fh);
1134 }
1135 command_close_pipe($fh, $ctx);
1136 } elsif ($file_type eq "link") {
1137 my $file_name =
1138 command(qw(cat-file blob), "HEAD:$path");
1139 $checksum =
1140 md5sum("link " . $file_name);
1141 } else {
1142 open FILE, "<", $path or die $!;
1143 $checksum = md5sum(\*FILE);
1144 close FILE or die $!;
1145 }
1146 $result .= "Checksum: " . $checksum . "\n";
1147 }
1148
1149 print $result, "\n";
1150 }
1151
1152 sub cmd_reset {
1153 my $target = shift || $_revision or die "SVN revision required\n";
1154 $target = $1 if $target =~ /^r(\d+)$/;
1155 $target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
1156 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1157 unless ($gs) {
1158 die "Unable to determine upstream SVN information from ".
1159 "history\n";
1160 }
1161 my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
1162 $gs->rev_map_set($r, $c, 'reset', $uuid);
1163 print "r$r = $c ($gs->{ref_id})\n";
1164 }
1165
1166 sub cmd_gc {
1167 if (!$can_compress) {
1168 warn "Compress::Zlib could not be found; unhandled.log " .
1169 "files will not be compressed.\n";
1170 }
1171 find({ wanted => \&gc_directory, no_chdir => 1}, "$ENV{GIT_DIR}/svn");
1172 }
1173
1174 ########################### utility functions #########################
1175
1176 sub rebase_cmd {
1177 my @cmd = qw/rebase/;
1178 push @cmd, '-v' if $_verbose;
1179 push @cmd, qw/--merge/ if $_merge;
1180 push @cmd, "--strategy=$_strategy" if $_strategy;
1181 @cmd;
1182 }
1183
1184 sub post_fetch_checkout {
1185 return if $_no_checkout;
1186 my $gs = $Git::SVN::_head or return;
1187 return if verify_ref('refs/heads/master^0');
1188
1189 # look for "trunk" ref if it exists
1190 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
1191 my $fetch = $remote->{fetch};
1192 if ($fetch) {
1193 foreach my $p (keys %$fetch) {
1194 basename($fetch->{$p}) eq 'trunk' or next;
1195 $gs = Git::SVN->new($fetch->{$p}, $gs->{repo_id}, $p);
1196 last;
1197 }
1198 }
1199
1200 my $valid_head = verify_ref('HEAD^0');
1201 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
1202 return if ($valid_head || !verify_ref('HEAD^0'));
1203
1204 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
1205 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
1206 return if -f $index;
1207
1208 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
1209 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
1210 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
1211 print STDERR "Checked out HEAD:\n ",
1212 $gs->full_url, " r", $gs->last_rev, "\n";
1213 $gs->mkemptydirs($gs->last_rev);
1214 }
1215
1216 sub complete_svn_url {
1217 my ($url, $path) = @_;
1218 $path =~ s#/+$##;
1219 if ($path !~ m#^[a-z\+]+://#) {
1220 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
1221 fatal("E: '$path' is not a complete URL ",
1222 "and a separate URL is not specified");
1223 }
1224 return ($url, $path);
1225 }
1226 return ($path, '');
1227 }
1228
1229 sub complete_url_ls_init {
1230 my ($ra, $repo_path, $switch, $pfx) = @_;
1231 unless ($repo_path) {
1232 print STDERR "W: $switch not specified\n";
1233 return;
1234 }
1235 $repo_path =~ s#/+$##;
1236 if ($repo_path =~ m#^[a-z\+]+://#) {
1237 $ra = Git::SVN::Ra->new($repo_path);
1238 $repo_path = '';
1239 } else {
1240 $repo_path =~ s#^/+##;
1241 unless ($ra) {
1242 fatal("E: '$repo_path' is not a complete URL ",
1243 "and a separate URL is not specified");
1244 }
1245 }
1246 my $url = $ra->{url};
1247 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
1248 my $k = "svn-remote.$gs->{repo_id}.url";
1249 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
1250 if ($orig_url && ($orig_url ne $gs->{url})) {
1251 die "$k already set: $orig_url\n",
1252 "wanted to set to: $gs->{url}\n";
1253 }
1254 command_oneline('config', $k, $gs->{url}) unless $orig_url;
1255 my $remote_path = "$gs->{path}/$repo_path";
1256 $remote_path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
1257 $remote_path =~ s#/+#/#g;
1258 $remote_path =~ s#^/##g;
1259 $remote_path .= "/*" if $remote_path !~ /\*/;
1260 my ($n) = ($switch =~ /^--(\w+)/);
1261 if (length $pfx && $pfx !~ m#/$#) {
1262 die "--prefix='$pfx' must have a trailing slash '/'\n";
1263 }
1264 command_noisy('config',
1265 '--add',
1266 "svn-remote.$gs->{repo_id}.$n",
1267 "$remote_path:refs/remotes/$pfx*" .
1268 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
1269 }
1270
1271 sub verify_ref {
1272 my ($ref) = @_;
1273 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1274 { STDERR => 0 }); };
1275 }
1276
1277 sub get_tree_from_treeish {
1278 my ($treeish) = @_;
1279 # $treeish can be a symbolic ref, too:
1280 my $type = command_oneline(qw/cat-file -t/, $treeish);
1281 my $expected;
1282 while ($type eq 'tag') {
1283 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1284 }
1285 if ($type eq 'commit') {
1286 $expected = (grep /^tree /, command(qw/cat-file commit/,
1287 $treeish))[0];
1288 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1289 die "Unable to get tree from $treeish\n" unless $expected;
1290 } elsif ($type eq 'tree') {
1291 $expected = $treeish;
1292 } else {
1293 die "$treeish is a $type, expected tree, tag or commit\n";
1294 }
1295 return $expected;
1296 }
1297
1298 sub get_commit_entry {
1299 my ($treeish) = shift;
1300 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1301 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1302 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1303 open my $log_fh, '>', $commit_editmsg or croak $!;
1304
1305 my $type = command_oneline(qw/cat-file -t/, $treeish);
1306 if ($type eq 'commit' || $type eq 'tag') {
1307 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1308 $type, $treeish);
1309 my $in_msg = 0;
1310 my $author;
1311 my $saw_from = 0;
1312 my $msgbuf = "";
1313 while (<$msg_fh>) {
1314 if (!$in_msg) {
1315 $in_msg = 1 if (/^\s*$/);
1316 $author = $1 if (/^author (.*>)/);
1317 } elsif (/^git-svn-id: /) {
1318 # skip this for now, we regenerate the
1319 # correct one on re-fetch anyways
1320 # TODO: set *:merge properties or like...
1321 } else {
1322 if (/^From:/ || /^Signed-off-by:/) {
1323 $saw_from = 1;
1324 }
1325 $msgbuf .= $_;
1326 }
1327 }
1328 $msgbuf =~ s/\s+$//s;
1329 if ($Git::SVN::_add_author_from && defined($author)
1330 && !$saw_from) {
1331 $msgbuf .= "\n\nFrom: $author";
1332 }
1333 print $log_fh $msgbuf or croak $!;
1334 command_close_pipe($msg_fh, $ctx);
1335 }
1336 close $log_fh or croak $!;
1337
1338 if ($_edit || ($type eq 'tree')) {
1339 chomp(my $editor = command_oneline(qw(var GIT_EDITOR)));
1340 system('sh', '-c', $editor.' "$@"', $editor, $commit_editmsg);
1341 }
1342 rename $commit_editmsg, $commit_msg or croak $!;
1343 {
1344 require Encode;
1345 # SVN requires messages to be UTF-8 when entering the repo
1346 local $/;
1347 open $log_fh, '<', $commit_msg or croak $!;
1348 binmode $log_fh;
1349 chomp($log_entry{log} = <$log_fh>);
1350
1351 my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
1352 my $msg = $log_entry{log};
1353
1354 eval { $msg = Encode::decode($enc, $msg, 1) };
1355 if ($@) {
1356 die "Could not decode as $enc:\n", $msg,
1357 "\nPerhaps you need to set i18n.commitencoding\n";
1358 }
1359
1360 eval { $msg = Encode::encode('UTF-8', $msg, 1) };
1361 die "Could not encode as UTF-8:\n$msg\n" if $@;
1362
1363 $log_entry{log} = $msg;
1364
1365 close $log_fh or croak $!;
1366 }
1367 unlink $commit_msg;
1368 \%log_entry;
1369 }
1370
1371 sub s_to_file {
1372 my ($str, $file, $mode) = @_;
1373 open my $fd,'>',$file or croak $!;
1374 print $fd $str,"\n" or croak $!;
1375 close $fd or croak $!;
1376 chmod ($mode &~ umask, $file) if (defined $mode);
1377 }
1378
1379 sub file_to_s {
1380 my $file = shift;
1381 open my $fd,'<',$file or croak "$!: file: $file\n";
1382 local $/;
1383 my $ret = <$fd>;
1384 close $fd or croak $!;
1385 $ret =~ s/\s*$//s;
1386 return $ret;
1387 }
1388
1389 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1390 sub load_authors {
1391 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1392 my $log = $cmd eq 'log';
1393 while (<$authors>) {
1394 chomp;
1395 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1396 my ($user, $name, $email) = ($1, $2, $3);
1397 if ($log) {
1398 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1399 } else {
1400 $users{$user} = [$name, $email];
1401 }
1402 }
1403 close $authors or croak $!;
1404 }
1405
1406 # convert GetOpt::Long specs for use by git-config
1407 sub read_git_config {
1408 my $opts = shift;
1409 my @config_only;
1410 foreach my $o (keys %$opts) {
1411 # if we have mixedCase and a long option-only, then
1412 # it's a config-only variable that we don't need for
1413 # the command-line.
1414 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1415 my $v = $opts->{$o};
1416 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1417 $key =~ s/-//g;
1418 my $arg = 'git config';
1419 $arg .= ' --int' if ($o =~ /[:=]i$/);
1420 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1421 if (ref $v eq 'ARRAY') {
1422 chomp(my @tmp = `$arg --get-all svn.$key`);
1423 @$v = @tmp if @tmp;
1424 } else {
1425 chomp(my $tmp = `$arg --get svn.$key`);
1426 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1427 $$v = $tmp;
1428 }
1429 }
1430 }
1431 delete @$opts{@config_only} if @config_only;
1432 }
1433
1434 sub extract_metadata {
1435 my $id = shift or return (undef, undef, undef);
1436 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1437 \s([a-f\d\-]+)$/ix);
1438 if (!defined $rev || !$uuid || !$url) {
1439 # some of the original repositories I made had
1440 # identifiers like this:
1441 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
1442 }
1443 return ($url, $rev, $uuid);
1444 }
1445
1446 sub cmt_metadata {
1447 return extract_metadata((grep(/^git-svn-id: /,
1448 command(qw/cat-file commit/, shift)))[-1]);
1449 }
1450
1451 sub cmt_sha2rev_batch {
1452 my %s2r;
1453 my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
1454 my $list = shift;
1455
1456 foreach my $sha (@{$list}) {
1457 my $first = 1;
1458 my $size = 0;
1459 print $out $sha, "\n";
1460
1461 while (my $line = <$in>) {
1462 if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) {
1463 last;
1464 } elsif ($first &&
1465 $line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) {
1466 $first = 0;
1467 $size = $1;
1468 next;
1469 } elsif ($line =~ /^(git-svn-id: )/) {
1470 my (undef, $rev, undef) =
1471 extract_metadata($line);
1472 $s2r{$sha} = $rev;
1473 }
1474
1475 $size -= length($line);
1476 last if ($size == 0);
1477 }
1478 }
1479
1480 command_close_bidi_pipe($pid, $in, $out, $ctx);
1481
1482 return \%s2r;
1483 }
1484
1485 sub working_head_info {
1486 my ($head, $refs) = @_;
1487 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1488 my ($fh, $ctx) = command_output_pipe(@args, $head);
1489 my $hash;
1490 my %max;
1491 while (<$fh>) {
1492 if ( m{^commit ($::sha1)$} ) {
1493 unshift @$refs, $hash if $hash and $refs;
1494 $hash = $1;
1495 next;
1496 }
1497 next unless s{^\s*(git-svn-id:)}{$1};
1498 my ($url, $rev, $uuid) = extract_metadata($_);
1499 if (defined $url && defined $rev) {
1500 next if $max{$url} and $max{$url} < $rev;
1501 if (my $gs = Git::SVN->find_by_url($url)) {
1502 my $c = $gs->rev_map_get($rev, $uuid);
1503 if ($c && $c eq $hash) {
1504 close $fh; # break the pipe
1505 return ($url, $rev, $uuid, $gs);
1506 } else {
1507 $max{$url} ||= $gs->rev_map_max;
1508 }
1509 }
1510 }
1511 }
1512 command_close_pipe($fh, $ctx);
1513 (undef, undef, undef, undef);
1514 }
1515
1516 sub read_commit_parents {
1517 my ($parents, $c) = @_;
1518 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1519 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1520 @{$parents->{$c}} = split(/ /, $p);
1521 }
1522
1523 sub linearize_history {
1524 my ($gs, $refs) = @_;
1525 my %parents;
1526 foreach my $c (@$refs) {
1527 read_commit_parents(\%parents, $c);
1528 }
1529
1530 my @linear_refs;
1531 my %skip = ();
1532 my $last_svn_commit = $gs->last_commit;
1533 foreach my $c (reverse @$refs) {
1534 next if $c eq $last_svn_commit;
1535 last if $skip{$c};
1536
1537 unshift @linear_refs, $c;
1538 $skip{$c} = 1;
1539
1540 # we only want the first parent to diff against for linear
1541 # history, we save the rest to inject when we finalize the
1542 # svn commit
1543 my $fp_a = verify_ref("$c~1");
1544 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1545 if (!$fp_a || !$fp_b) {
1546 die "Commit $c\n",
1547 "has no parent commit, and therefore ",
1548 "nothing to diff against.\n",
1549 "You should be working from a repository ",
1550 "originally created by git-svn\n";
1551 }
1552 if ($fp_a ne $fp_b) {
1553 die "$c~1 = $fp_a, however parsing commit $c ",
1554 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1555 }
1556
1557 foreach my $p (@{$parents{$c}}) {
1558 $skip{$p} = 1;
1559 }
1560 }
1561 (\@linear_refs, \%parents);
1562 }
1563
1564 sub find_file_type_and_diff_status {
1565 my ($path) = @_;
1566 return ('dir', '') if $path eq '';
1567
1568 my $diff_output =
1569 command_oneline(qw(diff --cached --name-status --), $path) || "";
1570 my $diff_status = (split(' ', $diff_output))[0] || "";
1571
1572 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1573
1574 return (undef, undef) if !$diff_status && !$ls_tree;
1575
1576 if ($diff_status eq "A") {
1577 return ("link", $diff_status) if -l $path;
1578 return ("dir", $diff_status) if -d $path;
1579 return ("file", $diff_status);
1580 }
1581
1582 my $mode = (split(' ', $ls_tree))[0] || "";
1583
1584 return ("link", $diff_status) if $mode eq "120000";
1585 return ("dir", $diff_status) if $mode eq "040000";
1586 return ("file", $diff_status);
1587 }
1588
1589 sub md5sum {
1590 my $arg = shift;
1591 my $ref = ref $arg;
1592 my $md5 = Digest::MD5->new();
1593 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
1594 $md5->addfile($arg) or croak $!;
1595 } elsif ($ref eq 'SCALAR') {
1596 $md5->add($$arg) or croak $!;
1597 } elsif (!$ref) {
1598 $md5->add($arg) or croak $!;
1599 } else {
1600 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1601 }
1602 return $md5->hexdigest();
1603 }
1604
1605 sub gc_directory {
1606 if ($can_compress && -f $_ && basename($_) eq "unhandled.log") {
1607 my $out_filename = $_ . ".gz";
1608 open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
1609 binmode $in_fh;
1610 my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
1611 die "Unable to open $out_filename: $!\n";
1612
1613 my $res;
1614 while ($res = sysread($in_fh, my $str, 1024)) {
1615 $gz->gzwrite($str) or
1616 die "Unable to write: ".$gz->gzerror()."!\n";
1617 }
1618 unlink $_ or die "unlink $File::Find::name: $!\n";
1619 } elsif (-f $_ && basename($_) eq "index") {
1620 unlink $_ or die "unlink $_: $!\n";
1621 }
1622 }
1623
1624 package Git::SVN;
1625 use strict;
1626 use warnings;
1627 use Fcntl qw/:DEFAULT :seek/;
1628 use constant rev_map_fmt => 'NH40';
1629 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1630 $_repack $_repack_flags $_use_svm_props $_head
1631 $_use_svnsync_props $no_reuse_existing $_minimize_url
1632 $_use_log_author $_add_author_from $_localtime/;
1633 use Carp qw/croak/;
1634 use File::Path qw/mkpath/;
1635 use File::Copy qw/copy/;
1636 use IPC::Open3;
1637 use Memoize; # core since 5.8.0, Jul 2002
1638
1639 my ($_gc_nr, $_gc_period);
1640
1641 # properties that we do not log:
1642 my %SKIP_PROP;
1643 BEGIN {
1644 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1645 svn:special svn:executable
1646 svn:entry:committed-rev
1647 svn:entry:last-author
1648 svn:entry:uuid
1649 svn:entry:committed-date/;
1650
1651 # some options are read globally, but can be overridden locally
1652 # per [svn-remote "..."] section. Command-line options will *NOT*
1653 # override options set in an [svn-remote "..."] section
1654 no strict 'refs';
1655 for my $option (qw/follow_parent no_metadata use_svm_props
1656 use_svnsync_props/) {
1657 my $key = $option;
1658 $key =~ tr/_//d;
1659 my $prop = "-$option";
1660 *$option = sub {
1661 my ($self) = @_;
1662 return $self->{$prop} if exists $self->{$prop};
1663 my $k = "svn-remote.$self->{repo_id}.$key";
1664 eval { command_oneline(qw/config --get/, $k) };
1665 if ($@) {
1666 $self->{$prop} = ${"Git::SVN::_$option"};
1667 } else {
1668 my $v = command_oneline(qw/config --bool/,$k);
1669 $self->{$prop} = $v eq 'false' ? 0 : 1;
1670 }
1671 return $self->{$prop};
1672 }
1673 }
1674 }
1675
1676
1677 my (%LOCKFILES, %INDEX_FILES);
1678 END {
1679 unlink keys %LOCKFILES if %LOCKFILES;
1680 unlink keys %INDEX_FILES if %INDEX_FILES;
1681 }
1682
1683 sub resolve_local_globs {
1684 my ($url, $fetch, $glob_spec) = @_;
1685 return unless defined $glob_spec;
1686 my $ref = $glob_spec->{ref};
1687 my $path = $glob_spec->{path};
1688 foreach (command(qw#for-each-ref --format=%(refname) refs/#)) {
1689 next unless m#^$ref->{regex}$#;
1690 my $p = $1;
1691 my $pathname = desanitize_refname($path->full_path($p));
1692 my $refname = desanitize_refname($ref->full_path($p));
1693 if (my $existing = $fetch->{$pathname}) {
1694 if ($existing ne $refname) {
1695 die "Refspec conflict:\n",
1696 "existing: $existing\n",
1697 " globbed: $refname\n";
1698 }
1699 my $u = (::cmt_metadata("$refname"))[0];
1700 $u =~ s!^\Q$url\E(/|$)!! or die
1701 "$refname: '$url' not found in '$u'\n";
1702 if ($pathname ne $u) {
1703 warn "W: Refspec glob conflict ",
1704 "(ref: $refname):\n",
1705 "expected path: $pathname\n",
1706 " real path: $u\n",
1707 "Continuing ahead with $u\n";
1708 next;
1709 }
1710 } else {
1711 $fetch->{$pathname} = $refname;
1712 }
1713 }
1714 }
1715
1716 sub parse_revision_argument {
1717 my ($base, $head) = @_;
1718 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1719 return ($base, $head);
1720 }
1721 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1722 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1723 return ($head, $head) if ($::_revision eq 'HEAD');
1724 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1725 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1726 die "revision argument: $::_revision not understood by git-svn\n";
1727 }
1728
1729 sub fetch_all {
1730 my ($repo_id, $remotes) = @_;
1731 if (ref $repo_id) {
1732 my $gs = $repo_id;
1733 $repo_id = undef;
1734 $repo_id = $gs->{repo_id};
1735 }
1736 $remotes ||= read_all_remotes();
1737 my $remote = $remotes->{$repo_id} or
1738 die "[svn-remote \"$repo_id\"] unknown\n";
1739 my $fetch = $remote->{fetch};
1740 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1741 my (@gs, @globs);
1742 my $ra = Git::SVN::Ra->new($url);
1743 my $uuid = $ra->get_uuid;
1744 my $head = $ra->get_latest_revnum;
1745
1746 # ignore errors, $head revision may not even exist anymore
1747 eval { $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] }) };
1748 warn "W: $@\n" if $@;
1749
1750 my $base = defined $fetch ? $head : 0;
1751
1752 # read the max revs for wildcard expansion (branches/*, tags/*)
1753 foreach my $t (qw/branches tags/) {
1754 defined $remote->{$t} or next;
1755 push @globs, @{$remote->{$t}};
1756
1757 my $max_rev = eval { tmp_config(qw/--int --get/,
1758 "svn-remote.$repo_id.${t}-maxRev") };
1759 if (defined $max_rev && ($max_rev < $base)) {
1760 $base = $max_rev;
1761 } elsif (!defined $max_rev) {
1762 $base = 0;
1763 }
1764 }
1765
1766 if ($fetch) {
1767 foreach my $p (sort keys %$fetch) {
1768 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1769 my $lr = $gs->rev_map_max;
1770 if (defined $lr) {
1771 $base = $lr if ($lr < $base);
1772 }
1773 push @gs, $gs;
1774 }
1775 }
1776
1777 ($base, $head) = parse_revision_argument($base, $head);
1778 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1779 }
1780
1781 sub read_all_remotes {
1782 my $r = {};
1783 my $use_svm_props = eval { command_oneline(qw/config --bool
1784 svn.useSvmProps/) };
1785 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
1786 my $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*};
1787 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1788 if (m!^(.+)\.fetch=$svn_refspec$!) {
1789 my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
1790 die("svn-remote.$remote: remote ref '$remote_ref' "
1791 . "must start with 'refs/'\n")
1792 unless $remote_ref =~ m{^refs/};
1793 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1794 $r->{$remote}->{svm} = {} if $use_svm_props;
1795 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
1796 $r->{$1}->{svm} = {};
1797 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1798 $r->{$1}->{url} = $2;
1799 } elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) {
1800 my ($remote, $t, $local_ref, $remote_ref) =
1801 ($1, $2, $3, $4);
1802 die("svn-remote.$remote: remote ref '$remote_ref' ($t) "
1803 . "must start with 'refs/'\n")
1804 unless $remote_ref =~ m{^refs/};
1805 my $rs = {
1806 t => $t,
1807 remote => $remote,
1808 path => Git::SVN::GlobSpec->new($local_ref),
1809 ref => Git::SVN::GlobSpec->new($remote_ref) };
1810 if (length($rs->{ref}->{right}) != 0) {
1811 die "The '*' glob character must be the last ",
1812 "character of '$remote_ref'\n";
1813 }
1814 push @{ $r->{$remote}->{$t} }, $rs;
1815 }
1816 }
1817
1818 map {
1819 if (defined $r->{$_}->{svm}) {
1820 my $svm;
1821 eval {
1822 my $section = "svn-remote.$_";
1823 $svm = {
1824 source => tmp_config('--get',
1825 "$section.svm-source"),
1826 replace => tmp_config('--get',
1827 "$section.svm-replace"),
1828 }
1829 };
1830 $r->{$_}->{svm} = $svm;
1831 }
1832 } keys %$r;
1833
1834 $r;
1835 }
1836
1837 sub init_vars {
1838 $_gc_nr = $_gc_period = 1000;
1839 if (defined $_repack || defined $_repack_flags) {
1840 warn "Repack options are obsolete; they have no effect.\n";
1841 }
1842 }
1843
1844 sub verify_remotes_sanity {
1845 return unless -d $ENV{GIT_DIR};
1846 my %seen;
1847 foreach (command(qw/config -l/)) {
1848 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1849 if ($seen{$1}) {
1850 die "Remote ref refs/remote/$1 is tracked by",
1851 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1852 "Please resolve this ambiguity in ",
1853 "your git configuration file before ",
1854 "continuing\n";
1855 }
1856 $seen{$1} = $_;
1857 }
1858 }
1859 }
1860
1861 sub find_existing_remote {
1862 my ($url, $remotes) = @_;
1863 return undef if $no_reuse_existing;
1864 my $existing;
1865 foreach my $repo_id (keys %$remotes) {
1866 my $u = $remotes->{$repo_id}->{url} or next;
1867 next if $u ne $url;
1868 $existing = $repo_id;
1869 last;
1870 }
1871 $existing;
1872 }
1873
1874 sub init_remote_config {
1875 my ($self, $url, $no_write) = @_;
1876 $url =~ s!/+$!!; # strip trailing slash
1877 my $r = read_all_remotes();
1878 my $existing = find_existing_remote($url, $r);
1879 if ($existing) {
1880 unless ($no_write) {
1881 print STDERR "Using existing ",
1882 "[svn-remote \"$existing\"]\n";
1883 }
1884 $self->{repo_id} = $existing;
1885 } elsif ($_minimize_url) {
1886 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1887 $existing = find_existing_remote($min_url, $r);
1888 if ($existing) {
1889 unless ($no_write) {
1890 print STDERR "Using existing ",
1891 "[svn-remote \"$existing\"]\n";
1892 }
1893 $self->{repo_id} = $existing;
1894 }
1895 if ($min_url ne $url) {
1896 unless ($no_write) {
1897 print STDERR "Using higher level of URL: ",
1898 "$url => $min_url\n";
1899 }
1900 my $old_path = $self->{path};
1901 $self->{path} = $url;
1902 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1903 if (length $old_path) {
1904 $self->{path} .= "/$old_path";
1905 }
1906 $url = $min_url;
1907 }
1908 }
1909 my $orig_url;
1910 if (!$existing) {
1911 # verify that we aren't overwriting anything:
1912 $orig_url = eval {
1913 command_oneline('config', '--get',
1914 "svn-remote.$self->{repo_id}.url")
1915 };
1916 if ($orig_url && ($orig_url ne $url)) {
1917 die "svn-remote.$self->{repo_id}.url already set: ",
1918 "$orig_url\nwanted to set to: $url\n";
1919 }
1920 }
1921 my ($xrepo_id, $xpath) = find_ref($self->refname);
1922 if (!$no_write && defined $xpath) {
1923 die "svn-remote.$xrepo_id.fetch already set to track ",
1924 "$xpath:", $self->refname, "\n";
1925 }
1926 unless ($no_write) {
1927 command_noisy('config',
1928 "svn-remote.$self->{repo_id}.url", $url);
1929 $self->{path} =~ s{^/}{};
1930 $self->{path} =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
1931 command_noisy('config', '--add',
1932 "svn-remote.$self->{repo_id}.fetch",
1933 "$self->{path}:".$self->refname);
1934 }
1935 $self->{url} = $url;
1936 }
1937
1938 sub find_by_url { # repos_root and, path are optional
1939 my ($class, $full_url, $repos_root, $path) = @_;
1940
1941 return undef unless defined $full_url;
1942 remove_username($full_url);
1943 remove_username($repos_root) if defined $repos_root;
1944 my $remotes = read_all_remotes();
1945 if (defined $full_url && defined $repos_root && !defined $path) {
1946 $path = $full_url;
1947 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1948 }
1949 foreach my $repo_id (keys %$remotes) {
1950 my $u = $remotes->{$repo_id}->{url} or next;
1951 remove_username($u);
1952 next if defined $repos_root && $repos_root ne $u;
1953
1954 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1955 foreach my $t (qw/branches tags/) {
1956 foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) {
1957 resolve_local_globs($u, $fetch, $globspec);
1958 }
1959 }
1960 my $p = $path;
1961 my $rwr = rewrite_root({repo_id => $repo_id});
1962 my $svm = $remotes->{$repo_id}->{svm}
1963 if defined $remotes->{$repo_id}->{svm};
1964 unless (defined $p) {
1965 $p = $full_url;
1966 my $z = $u;
1967 my $prefix = '';
1968 if ($rwr) {
1969 $z = $rwr;
1970 remove_username($z);
1971 } elsif (defined $svm) {
1972 $z = $svm->{source};
1973 $prefix = $svm->{replace};
1974 $prefix =~ s#^\Q$u\E(?:/|$)##;
1975 $prefix =~ s#/$##;
1976 }
1977 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
1978 }
1979 foreach my $f (keys %$fetch) {
1980 next if $f ne $p;
1981 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1982 }
1983 }
1984 undef;
1985 }
1986
1987 sub init {
1988 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1989 my $self = _new($class, $repo_id, $ref_id, $path);
1990 if (defined $url) {
1991 $self->init_remote_config($url, $no_write);
1992 }
1993 $self;
1994 }
1995
1996 sub find_ref {
1997 my ($ref_id) = @_;
1998 foreach (command(qw/config -l/)) {
1999 next unless m!^svn-remote\.(.+)\.fetch=
2000 \s*(.*?)\s*:\s*(.+?)\s*$!x;
2001 my ($repo_id, $path, $ref) = ($1, $2, $3);
2002 if ($ref eq $ref_id) {
2003 $path = '' if ($path =~ m#^\./?#);
2004 return ($repo_id, $path);
2005 }
2006 }
2007 (undef, undef, undef);
2008 }
2009
2010 sub new {
2011 my ($class, $ref_id, $repo_id, $path) = @_;
2012 if (defined $ref_id && !defined $repo_id && !defined $path) {
2013 ($repo_id, $path) = find_ref($ref_id);
2014 if (!defined $repo_id) {
2015 die "Could not find a \"svn-remote.*.fetch\" key ",
2016 "in the repository configuration matching: ",
2017 "$ref_id\n";
2018 }
2019 }
2020 my $self = _new($class, $repo_id, $ref_id, $path);
2021 if (!defined $self->{path} || !length $self->{path}) {
2022 my $fetch = command_oneline('config', '--get',
2023 "svn-remote.$repo_id.fetch",
2024 ":$ref_id\$") or
2025 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
2026 "\":$ref_id\$\" in config\n";
2027 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
2028 }
2029 $self->{url} = command_oneline('config', '--get',
2030 "svn-remote.$repo_id.url") or
2031 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
2032 $self->rebuild;
2033 $self;
2034 }
2035
2036 sub refname {
2037 my ($refname) = $_[0]->{ref_id} ;
2038
2039 # It cannot end with a slash /, we'll throw up on this because
2040 # SVN can't have directories with a slash in their name, either:
2041 if ($refname =~ m{/$}) {
2042 die "ref: '$refname' ends with a trailing slash, this is ",
2043 "not permitted by git nor Subversion\n";
2044 }
2045
2046 # It cannot have ASCII control character space, tilde ~, caret ^,
2047 # colon :, question-mark ?, asterisk *, space, or open bracket [
2048 # anywhere.
2049 #
2050 # Additionally, % must be escaped because it is used for escaping
2051 # and we want our escaped refname to be reversible
2052 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
2053
2054 # no slash-separated component can begin with a dot .
2055 # /.* becomes /%2E*
2056 $refname =~ s{/\.}{/%2E}g;
2057
2058 # It cannot have two consecutive dots .. anywhere
2059 # .. becomes %2E%2E
2060 $refname =~ s{\.\.}{%2E%2E}g;
2061
2062 return $refname;
2063 }
2064
2065 sub desanitize_refname {
2066 my ($refname) = @_;
2067 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
2068 return $refname;
2069 }
2070
2071 sub svm_uuid {
2072 my ($self) = @_;
2073 return $self->{svm}->{uuid} if $self->svm;
2074 $self->ra;
2075 unless ($self->{svm}) {
2076 die "SVM UUID not cached, and reading remotely failed\n";
2077 }
2078 $self->{svm}->{uuid};
2079 }
2080
2081 sub svm {
2082 my ($self) = @_;
2083 return $self->{svm} if $self->{svm};
2084 my $svm;
2085 # see if we have it in our config, first:
2086 eval {
2087 my $section = "svn-remote.$self->{repo_id}";
2088 $svm = {
2089 source => tmp_config('--get', "$section.svm-source"),
2090 uuid => tmp_config('--get', "$section.svm-uuid"),
2091 replace => tmp_config('--get', "$section.svm-replace"),
2092 }
2093 };
2094 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
2095 $self->{svm} = $svm;
2096 }
2097 $self->{svm};
2098 }
2099
2100 sub _set_svm_vars {
2101 my ($self, $ra) = @_;
2102 return $ra if $self->svm;
2103
2104 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
2105 "(svm:source, svm:uuid) ",
2106 "from the following URLs:\n" );
2107 sub read_svm_props {
2108 my ($self, $ra, $path, $r) = @_;
2109 my $props = ($ra->get_dir($path, $r))[2];
2110 my $src = $props->{'svm:source'};
2111 my $uuid = $props->{'svm:uuid'};
2112 return undef if (!$src || !$uuid);
2113
2114 chomp($src, $uuid);
2115
2116 $uuid =~ m{^[0-9a-f\-]{30,}$}i
2117 or die "doesn't look right - svm:uuid is '$uuid'\n";
2118
2119 # the '!' is used to mark the repos_root!/relative/path
2120 $src =~ s{/?!/?}{/};
2121 $src =~ s{/+$}{}; # no trailing slashes please
2122 # username is of no interest
2123 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
2124
2125 my $replace = $ra->{url};
2126 $replace .= "/$path" if length $path;
2127
2128 my $section = "svn-remote.$self->{repo_id}";
2129 tmp_config("$section.svm-source", $src);
2130 tmp_config("$section.svm-replace", $replace);
2131 tmp_config("$section.svm-uuid", $uuid);
2132 $self->{svm} = {
2133 source => $src,
2134 uuid => $uuid,
2135 replace => $replace
2136 };
2137 }
2138
2139 my $r = $ra->get_latest_revnum;
2140 my $path = $self->{path};
2141 my %tried;
2142 while (length $path) {
2143 unless ($tried{"$self->{url}/$path"}) {
2144 return $ra if $self->read_svm_props($ra, $path, $r);
2145 $tried{"$self->{url}/$path"} = 1;
2146 }
2147 $path =~ s#/?[^/]+$##;
2148 }
2149 die "Path: '$path' should be ''\n" if $path ne '';
2150 return $ra if $self->read_svm_props($ra, $path, $r);
2151 $tried{"$self->{url}/$path"} = 1;
2152
2153 if ($ra->{repos_root} eq $self->{url}) {
2154 die @err, (map { " $_\n" } keys %tried), "\n";
2155 }
2156
2157 # nope, make sure we're connected to the repository root:
2158 my $ok;
2159 my @tried_b;
2160 $path = $ra->{svn_path};
2161 $ra = Git::SVN::Ra->new($ra->{repos_root});
2162 while (length $path) {
2163 unless ($tried{"$ra->{url}/$path"}) {
2164 $ok = $self->read_svm_props($ra, $path, $r);
2165 last if $ok;
2166 $tried{"$ra->{url}/$path"} = 1;
2167 }
2168 $path =~ s#/?[^/]+$##;
2169 }
2170 die "Path: '$path' should be ''\n" if $path ne '';
2171 $ok ||= $self->read_svm_props($ra, $path, $r);
2172 $tried{"$ra->{url}/$path"} = 1;
2173 if (!$ok) {
2174 die @err, (map { " $_\n" } keys %tried), "\n";
2175 }
2176 Git::SVN::Ra->new($self->{url});
2177 }
2178
2179 sub svnsync {
2180 my ($self) = @_;
2181 return $self->{svnsync} if $self->{svnsync};
2182
2183 if ($self->no_metadata) {
2184 die "Can't have both 'noMetadata' and ",
2185 "'useSvnsyncProps' options set!\n";
2186 }
2187 if ($self->rewrite_root) {
2188 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
2189 "options set!\n";
2190 }
2191
2192 my $svnsync;
2193 # see if we have it in our config, first:
2194 eval {
2195 my $section = "svn-remote.$self->{repo_id}";
2196
2197 my $url = tmp_config('--get', "$section.svnsync-url");
2198 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
2199 die "doesn't look right - svn:sync-from-url is '$url'\n";
2200
2201 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
2202 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
2203 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
2204
2205 $svnsync = { url => $url, uuid => $uuid }
2206 };
2207 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
2208 return $self->{svnsync} = $svnsync;
2209 }
2210
2211 my $err = "useSvnsyncProps set, but failed to read " .
2212 "svnsync property: svn:sync-from-";
2213 my $rp = $self->ra->rev_proplist(0);
2214
2215 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
2216 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
2217 die "doesn't look right - svn:sync-from-url is '$url'\n";
2218
2219 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
2220 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
2221 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
2222
2223 my $section = "svn-remote.$self->{repo_id}";
2224 tmp_config('--add', "$section.svnsync-uuid", $uuid);
2225 tmp_config('--add', "$section.svnsync-url", $url);
2226 return $self->{svnsync} = { url => $url, uuid => $uuid };
2227 }
2228
2229 # this allows us to memoize our SVN::Ra UUID locally and avoid a
2230 # remote lookup (useful for 'git svn log').
2231 sub ra_uuid {
2232 my ($self) = @_;
2233 unless ($self->{ra_uuid}) {
2234 my $key = "svn-remote.$self->{repo_id}.uuid";
2235 my $uuid = eval { tmp_config('--get', $key) };
2236 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
2237 $self->{ra_uuid} = $uuid;
2238 } else {
2239 die "ra_uuid called without URL\n" unless $self->{url};
2240 $self->{ra_uuid} = $self->ra->get_uuid;
2241 tmp_config('--add', $key, $self->{ra_uuid});
2242 }
2243 }
2244 $self->{ra_uuid};
2245 }
2246
2247 sub _set_repos_root {
2248 my ($self, $repos_root) = @_;
2249 my $k = "svn-remote.$self->{repo_id}.reposRoot";
2250 $repos_root ||= $self->ra->{repos_root};
2251 tmp_config($k, $repos_root);
2252 $repos_root;
2253 }
2254
2255 sub repos_root {
2256 my ($self) = @_;
2257 my $k = "svn-remote.$self->{repo_id}.reposRoot";
2258 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
2259 }
2260
2261 sub ra {
2262 my ($self) = shift;
2263 my $ra = Git::SVN::Ra->new($self->{url});
2264 $self->_set_repos_root($ra->{repos_root});
2265 if ($self->use_svm_props && !$self->{svm}) {
2266 if ($self->no_metadata) {
2267 die "Can't have both 'noMetadata' and ",
2268 "'useSvmProps' options set!\n";
2269 } elsif ($self->use_svnsync_props) {
2270 die "Can't have both 'useSvnsyncProps' and ",
2271 "'useSvmProps' options set!\n";
2272 }
2273 $ra = $self->_set_svm_vars($ra);
2274 $self->{-want_revprops} = 1;
2275 }
2276 $ra;
2277 }
2278
2279 # prop_walk(PATH, REV, SUB)
2280 # -------------------------
2281 # Recursively traverse PATH at revision REV and invoke SUB for each
2282 # directory that contains a SVN property. SUB will be invoked as
2283 # follows: &SUB(gs, path, props); where `gs' is this instance of
2284 # Git::SVN, `path' the path to the directory where the properties
2285 # `props' were found. The `path' will be relative to point of checkout,
2286 # that is, if url://repo/trunk is the current Git branch, and that
2287 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
2288 # as `path' (note the trailing `/').
2289 sub prop_walk {
2290 my ($self, $path, $rev, $sub) = @_;
2291
2292 $path =~ s#^/##;
2293 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
2294 $path =~ s#^/*#/#g;
2295 my $p = $path;
2296 # Strip the irrelevant part of the path.
2297 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
2298 # Ensure the path is terminated by a `/'.
2299 $p =~ s#/*$#/#;
2300
2301 # The properties contain all the internal SVN stuff nobody
2302 # (usually) cares about.
2303 my $interesting_props = 0;
2304 foreach (keys %{$props}) {
2305 # If it doesn't start with `svn:', it must be a
2306 # user-defined property.
2307 ++$interesting_props and next if $_ !~ /^svn:/;
2308 # FIXME: Fragile, if SVN adds new public properties,
2309 # this needs to be updated.
2310 ++$interesting_props if /^svn:(?:ignore|keywords|executable
2311 |eol-style|mime-type
2312 |externals|needs-lock)$/x;
2313 }
2314 &$sub($self, $p, $props) if $interesting_props;
2315
2316 foreach (sort keys %$dirent) {
2317 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
2318 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
2319 }
2320 }
2321
2322 sub last_rev { ($_[0]->last_rev_commit)[0] }
2323 sub last_commit { ($_[0]->last_rev_commit)[1] }
2324
2325 # returns the newest SVN revision number and newest commit SHA1
2326 sub last_rev_commit {
2327 my ($self) = @_;
2328 if (defined $self->{last_rev} && defined $self->{last_commit}) {
2329 return ($self->{last_rev}, $self->{last_commit});
2330 }
2331 my $c = ::verify_ref($self->refname.'^0');
2332 if ($c && !$self->use_svm_props && !$self->no_metadata) {
2333 my $rev = (::cmt_metadata($c))[1];
2334 if (defined $rev) {
2335 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
2336 return ($rev, $c);
2337 }
2338 }
2339 my $map_path = $self->map_path;
2340 unless (-e $map_path) {
2341 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
2342 return (undef, undef);
2343 }
2344 my ($rev, $commit) = $self->rev_map_max(1);
2345 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
2346 return ($rev, $commit);
2347 }
2348
2349 sub get_fetch_range {
2350 my ($self, $min, $max) = @_;
2351 $max ||= $self->ra->get_latest_revnum;
2352 $min ||= $self->rev_map_max;
2353 (++$min, $max);
2354 }
2355
2356 sub tmp_config {
2357 my (@args) = @_;
2358 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
2359 my $config = "$ENV{GIT_DIR}/svn/.metadata";
2360 if (! -f $config && -f $old_def_config) {
2361 rename $old_def_config, $config or
2362 die "Failed rename $old_def_config => $config: $!\n";
2363 }
2364 my $old_config = $ENV{GIT_CONFIG};
2365 $ENV{GIT_CONFIG} = $config;
2366 $@ = undef;
2367 my @ret = eval {
2368 unless (-f $config) {
2369 mkfile($config);
2370 open my $fh, '>', $config or
2371 die "Can't open $config: $!\n";
2372 print $fh "; This file is used internally by ",
2373 "git-svn\n" or die
2374 "Couldn't write to $config: $!\n";
2375 print $fh "; You should not have to edit it\n" or
2376 die "Couldn't write to $config: $!\n";
2377 close $fh or die "Couldn't close $config: $!\n";
2378 }
2379 command('config', @args);
2380 };
2381 my $err = $@;
2382 if (defined $old_config) {
2383 $ENV{GIT_CONFIG} = $old_config;
2384 } else {
2385 delete $ENV{GIT_CONFIG};
2386 }
2387 die $err if $err;
2388 wantarray ? @ret : $ret[0];
2389 }
2390
2391 sub tmp_index_do {
2392 my ($self, $sub) = @_;
2393 my $old_index = $ENV{GIT_INDEX_FILE};
2394 $ENV{GIT_INDEX_FILE} = $self->{index};
2395 $@ = undef;
2396 my @ret = eval {
2397 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2398 mkpath([$dir]) unless -d $dir;
2399 &$sub;
2400 };
2401 my $err = $@;
2402 if (defined $old_index) {
2403 $ENV{GIT_INDEX_FILE} = $old_index;
2404 } else {
2405 delete $ENV{GIT_INDEX_FILE};
2406 }
2407 die $err if $err;
2408 wantarray ? @ret : $ret[0];
2409 }
2410
2411 sub assert_index_clean {
2412 my ($self, $treeish) = @_;
2413
2414 $self->tmp_index_do(sub {
2415 command_noisy('read-tree', $treeish) unless -e $self->{index};
2416 my $x = command_oneline('write-tree');
2417 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2418 /^tree ($::sha1)/mo);
2419 return if $y eq $x;
2420
2421 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2422 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2423 command_noisy('read-tree', $treeish);
2424 $x = command_oneline('write-tree');
2425 if ($y ne $x) {
2426 ::fatal "trees ($treeish) $y != $x\n",
2427 "Something is seriously wrong...";
2428 }
2429 });
2430 }
2431
2432 sub get_commit_parents {
2433 my ($self, $log_entry) = @_;
2434 my (%seen, @ret, @tmp);
2435 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2436 if (my $ip = $self->{inject_parents}) {
2437 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2438 push @tmp, $commit;
2439 }
2440 }
2441 if (my $cur = ::verify_ref($self->refname.'^0')) {
2442 push @tmp, $cur;
2443 }
2444 if (my $ipd = $self->{inject_parents_dcommit}) {
2445 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2446 push @tmp, @$commit;
2447 }
2448 }
2449 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2450 while (my $p = shift @tmp) {
2451 next if $seen{$p};
2452 $seen{$p} = 1;
2453 push @ret, $p;
2454 }
2455 @ret;
2456 }
2457
2458 sub rewrite_root {
2459 my ($self) = @_;
2460 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2461 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2462 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2463 if ($rwr) {
2464 $rwr =~ s#/+$##;
2465 if ($rwr !~ m#^[a-z\+]+://#) {
2466 die "$rwr is not a valid URL (key: $k)\n";
2467 }
2468 }
2469 $self->{-rewrite_root} = $rwr;
2470 }
2471
2472 sub metadata_url {
2473 my ($self) = @_;
2474 ($self->rewrite_root || $self->{url}) .
2475 (length $self->{path} ? '/' . $self->{path} : '');
2476 }
2477
2478 sub full_url {
2479 my ($self) = @_;
2480 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2481 }
2482
2483
2484 sub set_commit_header_env {
2485 my ($log_entry) = @_;
2486 my %env;
2487 foreach my $ned (qw/NAME EMAIL DATE/) {
2488 foreach my $ac (qw/AUTHOR COMMITTER/) {
2489 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2490 }
2491 }
2492
2493 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2494 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2495 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2496
2497 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2498 ? $log_entry->{commit_name}
2499 : $log_entry->{name};
2500 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2501 ? $log_entry->{commit_email}
2502 : $log_entry->{email};
2503 \%env;
2504 }
2505
2506 sub restore_commit_header_env {
2507 my ($env) = @_;
2508 foreach my $ned (qw/NAME EMAIL DATE/) {
2509 foreach my $ac (qw/AUTHOR COMMITTER/) {
2510 my $k = "GIT_${ac}_${ned}";
2511 if (defined $env->{$k}) {
2512 $ENV{$k} = $env->{$k};
2513 } else {
2514 delete $ENV{$k};
2515 }
2516 }
2517 }
2518 }
2519
2520 sub gc {
2521 command_noisy('gc', '--auto');
2522 };
2523
2524 sub do_git_commit {
2525 my ($self, $log_entry) = @_;
2526 my $lr = $self->last_rev;
2527 if (defined $lr && $lr >= $log_entry->{revision}) {
2528 die "Last fetched revision of ", $self->refname,
2529 " was r$lr, but we are about to fetch: ",
2530 "r$log_entry->{revision}!\n";
2531 }
2532 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2533 croak "$log_entry->{revision} = $c already exists! ",
2534 "Why are we refetching it?\n";
2535 }
2536 my $old_env = set_commit_header_env($log_entry);
2537 my $tree = $log_entry->{tree};
2538 if (!defined $tree) {
2539 $tree = $self->tmp_index_do(sub {
2540 command_oneline('write-tree') });
2541 }
2542 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2543
2544 my @exec = ('git', 'commit-tree', $tree);
2545 foreach ($self->get_commit_parents($log_entry)) {
2546 push @exec, '-p', $_;
2547 }
2548 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2549 or croak $!;
2550 binmode $msg_fh;
2551
2552 # we always get UTF-8 from SVN, but we may want our commits in
2553 # a different encoding.
2554 if (my $enc = Git::config('i18n.commitencoding')) {
2555 require Encode;
2556 Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
2557 }
2558 print $msg_fh $log_entry->{log} or croak $!;
2559 restore_commit_header_env($old_env);
2560 unless ($self->no_metadata) {
2561 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2562 or croak $!;
2563 }
2564 $msg_fh->flush == 0 or croak $!;
2565 close $msg_fh or croak $!;
2566 chomp(my $commit = do { local $/; <$out_fh> });
2567 close $out_fh or croak $!;
2568 waitpid $pid, 0;
2569 croak $? if $?;
2570 if ($commit !~ /^$::sha1$/o) {
2571 die "Failed to commit, invalid sha1: $commit\n";
2572 }
2573
2574 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2575
2576 $self->{last_rev} = $log_entry->{revision};
2577 $self->{last_commit} = $commit;
2578 print "r$log_entry->{revision}" unless $::_q > 1;
2579 if (defined $log_entry->{svm_revision}) {
2580 print " (\@$log_entry->{svm_revision})" unless $::_q > 1;
2581 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2582 0, $self->svm_uuid);
2583 }
2584 print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
2585 if (--$_gc_nr == 0) {
2586 $_gc_nr = $_gc_period;
2587 gc();
2588 }
2589 return $commit;
2590 }
2591
2592 sub match_paths {
2593 my ($self, $paths, $r) = @_;
2594 return 1 if $self->{path} eq '';
2595 if (my $path = $paths->{"/$self->{path}"}) {
2596 return ($path->{action} eq 'D') ? 0 : 1;
2597 }
2598 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2599 if (grep /$self->{path_regex}/, keys %$paths) {
2600 return 1;
2601 }
2602 my $c = '';
2603 foreach (split m#/#, $self->{path}) {
2604 $c .= "/$_";
2605 next unless ($paths->{$c} &&
2606 ($paths->{$c}->{action} =~ /^[AR]$/));
2607 if ($self->ra->check_path($self->{path}, $r) ==
2608 $SVN::Node::dir) {
2609 return 1;
2610 }
2611 }
2612 return 0;
2613 }
2614
2615 sub find_parent_branch {
2616 my ($self, $paths, $rev) = @_;
2617 return undef unless $self->follow_parent;
2618 unless (defined $paths) {
2619 my $err_handler = $SVN::Error::handler;
2620 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2621 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1,
2622 sub { $paths = $_[0] });
2623 $SVN::Error::handler = $err_handler;
2624 }
2625 return undef unless defined $paths;
2626
2627 # look for a parent from another branch:
2628 my @b_path_components = split m#/#, $self->{path};
2629 my @a_path_components;
2630 my $i;
2631 while (@b_path_components) {
2632 $i = $paths->{'/'.join('/', @b_path_components)};
2633 last if $i && defined $i->{copyfrom_path};
2634 unshift(@a_path_components, pop(@b_path_components));
2635 }
2636 return undef unless defined $i && defined $i->{copyfrom_path};
2637 my $branch_from = $i->{copyfrom_path};
2638 if (@a_path_components) {
2639 print STDERR "branch_from: $branch_from => ";
2640 $branch_from .= '/'.join('/', @a_path_components);
2641 print STDERR $branch_from, "\n";
2642 }
2643 my $r = $i->{copyfrom_rev};
2644 my $repos_root = $self->ra->{repos_root};
2645 my $url = $self->ra->{url};
2646 my $new_url = $url . $branch_from;
2647 print STDERR "Found possible branch point: ",
2648 "$new_url => ", $self->full_url, ", $r\n"
2649 unless $::_q > 1;
2650 $branch_from =~ s#^/##;
2651 my $gs = $self->other_gs($new_url, $url,
2652 $branch_from, $r, $self->{ref_id});
2653 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2654 {
2655 my ($base, $head);
2656 if (!defined $r0 || !defined $parent) {
2657 ($base, $head) = parse_revision_argument(0, $r);
2658 } else {
2659 if ($r0 < $r) {
2660 $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
2661 0, 1, sub { $base = $_[1] - 1 });
2662 }
2663 }
2664 if (defined $base && $base <= $r) {
2665 $gs->fetch($base, $r);
2666 }
2667 ($r0, $parent) = $gs->find_rev_before($r, 1);
2668 }
2669 if (defined $r0 && defined $parent) {
2670 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n"
2671 unless $::_q > 1;
2672 my $ed;
2673 if ($self->ra->can_do_switch) {
2674 $self->assert_index_clean($parent);
2675 print STDERR "Following parent with do_switch\n"
2676 unless $::_q > 1;
2677 # do_switch works with svn/trunk >= r22312, but that
2678 # is not included with SVN 1.4.3 (the latest version
2679 # at the moment), so we can't rely on it
2680 $self->{last_rev} = $r0;
2681 $self->{last_commit} = $parent;
2682 $ed = SVN::Git::Fetcher->new($self, $gs->{path});
2683 $gs->ra->gs_do_switch($r0, $rev, $gs,
2684 $self->full_url, $ed)
2685 or die "SVN connection failed somewhere...\n";
2686 } elsif ($self->ra->trees_match($new_url, $r0,
2687 $self->full_url, $rev)) {
2688 print STDERR "Trees match:\n",
2689 " $new_url\@$r0\n",
2690 " ${\$self->full_url}\@$rev\n",
2691 "Following parent with no changes\n"
2692 unless $::_q > 1;
2693 $self->tmp_index_do(sub {
2694 command_noisy('read-tree', $parent);
2695 });
2696 $self->{last_commit} = $parent;
2697 } else {
2698 print STDERR "Following parent with do_update\n"
2699 unless $::_q > 1;
2700 $ed = SVN::Git::Fetcher->new($self);
2701 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2702 or die "SVN connection failed somewhere...\n";
2703 }
2704 print STDERR "Successfully followed parent\n" unless $::_q > 1;
2705 return $self->make_log_entry($rev, [$parent], $ed);
2706 }
2707 return undef;
2708 }
2709
2710 sub do_fetch {
2711 my ($self, $paths, $rev) = @_;
2712 my $ed;
2713 my ($last_rev, @parents);
2714 if (my $lc = $self->last_commit) {
2715 # we can have a branch that was deleted, then re-added
2716 # under the same name but copied from another path, in
2717 # which case we'll have multiple parents (we don't
2718 # want to break the original ref, nor lose copypath info):
2719 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2720 push @{$log_entry->{parents}}, $lc;
2721 return $log_entry;
2722 }
2723 $ed = SVN::Git::Fetcher->new($self);
2724 $last_rev = $self->{last_rev};
2725 $ed->{c} = $lc;
2726 @parents = ($lc);
2727 } else {
2728 $last_rev = $rev;
2729 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2730 return $log_entry;
2731 }
2732 $ed = SVN::Git::Fetcher->new($self);
2733 }
2734 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2735 die "SVN connection failed somewhere...\n";
2736 }
2737 $self->make_log_entry($rev, \@parents, $ed);
2738 }
2739
2740 sub mkemptydirs {
2741 my ($self, $r) = @_;
2742
2743 sub scan {
2744 my ($r, $empty_dirs, $line) = @_;
2745 if (defined $r && $line =~ /^r(\d+)$/) {
2746 return 0 if $1 > $r;
2747 } elsif ($line =~ /^ \+empty_dir: (.+)$/) {
2748 $empty_dirs->{$1} = 1;
2749 } elsif ($line =~ /^ \-empty_dir: (.+)$/) {
2750 my @d = grep {m[^\Q$1\E(/|$)]} (keys %$empty_dirs);
2751 delete @$empty_dirs{@d};
2752 }
2753 1; # continue
2754 };
2755
2756 my %empty_dirs = ();
2757 my $gz_file = "$self->{dir}/unhandled.log.gz";
2758 if (-f $gz_file) {
2759 if (!$can_compress) {
2760 warn "Compress::Zlib could not be found; ",
2761 "empty directories in $gz_file will not be read\n";
2762 } else {
2763 my $gz = Compress::Zlib::gzopen($gz_file, "rb") or
2764 die "Unable to open $gz_file: $!\n";
2765 my $line;
2766 while ($gz->gzreadline($line) > 0) {
2767 scan($r, \%empty_dirs, $line) or last;
2768 }
2769 $gz->gzclose;
2770 }
2771 }
2772
2773 if (open my $fh, '<', "$self->{dir}/unhandled.log") {
2774 binmode $fh or croak "binmode: $!";
2775 while (<$fh>) {
2776 scan($r, \%empty_dirs, $_) or last;
2777 }
2778 close $fh;
2779 }
2780
2781 my $strip = qr/\A\Q$self->{path}\E(?:\/|$)/;
2782 foreach my $d (sort keys %empty_dirs) {
2783 $d = uri_decode($d);
2784 $d =~ s/$strip//;
2785 next if -d $d;
2786 if (-e _) {
2787 warn "$d exists but is not a directory\n";
2788 } else {
2789 print "creating empty directory: $d\n";
2790 mkpath([$d]);
2791 }
2792 }
2793 }
2794
2795 sub get_untracked {
2796 my ($self, $ed) = @_;
2797 my @out;
2798 my $h = $ed->{empty};
2799 foreach (sort keys %$h) {
2800 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2801 push @out, " $act: " . uri_encode($_);
2802 warn "W: $act: $_\n";
2803 }
2804 foreach my $t (qw/dir_prop file_prop/) {
2805 $h = $ed->{$t} or next;
2806 foreach my $path (sort keys %$h) {
2807 my $ppath = $path eq '' ? '.' : $path;
2808 foreach my $prop (sort keys %{$h->{$path}}) {
2809 next if $SKIP_PROP{$prop};
2810 my $v = $h->{$path}->{$prop};
2811 my $t_ppath_prop = "$t: " .
2812 uri_encode($ppath) . ' ' .
2813 uri_encode($prop);
2814 if (defined $v) {
2815 push @out, " +$t_ppath_prop " .
2816 uri_encode($v);
2817 } else {
2818 push @out, " -$t_ppath_prop";
2819 }
2820 }
2821 }
2822 }
2823 foreach my $t (qw/absent_file absent_directory/) {
2824 $h = $ed->{$t} or next;
2825 foreach my $parent (sort keys %$h) {
2826 foreach my $path (sort @{$h->{$parent}}) {
2827 push @out, " $t: " .
2828 uri_encode("$parent/$path");
2829 warn "W: $t: $parent/$path ",
2830 "Insufficient permissions?\n";
2831 }
2832 }
2833 }
2834 \@out;
2835 }
2836
2837 # parse_svn_date(DATE)
2838 # --------------------
2839 # Given a date (in UTC) from Subversion, return a string in the format
2840 # "<TZ Offset> <local date/time>" that Git will use.
2841 #
2842 # By default the parsed date will be in UTC; if $Git::SVN::_localtime
2843 # is true we'll convert it to the local timezone instead.
2844 sub parse_svn_date {
2845 my $date = shift || return '+0000 1970-01-01 00:00:00';
2846 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2847 (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
2848 croak "Unable to parse date: $date\n";
2849 my $parsed_date; # Set next.
2850
2851 if ($Git::SVN::_localtime) {
2852 # Translate the Subversion datetime to an epoch time.
2853 # Begin by switching ourselves to $date's timezone, UTC.
2854 my $old_env_TZ = $ENV{TZ};
2855 $ENV{TZ} = 'UTC';
2856
2857 my $epoch_in_UTC =
2858 POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
2859
2860 # Determine our local timezone (including DST) at the
2861 # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
2862 # value of TZ, if any, at the time we were run.
2863 if (defined $Git::SVN::Log::TZ) {
2864 $ENV{TZ} = $Git::SVN::Log::TZ;
2865 } else {
2866 delete $ENV{TZ};
2867 }
2868
2869 my $our_TZ =
2870 POSIX::strftime('%Z', $S, $M, $H, $d, $m - 1, $Y - 1900);
2871
2872 # This converts $epoch_in_UTC into our local timezone.
2873 my ($sec, $min, $hour, $mday, $mon, $year,
2874 $wday, $yday, $isdst) = localtime($epoch_in_UTC);
2875
2876 $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
2877 $our_TZ, $year + 1900, $mon + 1,
2878 $mday, $hour, $min, $sec);
2879
2880 # Reset us to the timezone in effect when we entered
2881 # this routine.
2882 if (defined $old_env_TZ) {
2883 $ENV{TZ} = $old_env_TZ;
2884 } else {
2885 delete $ENV{TZ};
2886 }
2887 } else {
2888 $parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
2889 }
2890
2891 return $parsed_date;
2892 }
2893
2894 sub other_gs {
2895 my ($self, $new_url, $url,
2896 $branch_from, $r, $old_ref_id) = @_;
2897 my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
2898 unless ($gs) {
2899 my $ref_id = $old_ref_id;
2900 $ref_id =~ s/\@\d+$//;
2901 $ref_id .= "\@$r";
2902 # just grow a tail if we're not unique enough :x
2903 $ref_id .= '-' while find_ref($ref_id);
2904 print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
2905 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2906 if ($u =~ s#^\Q$url\E(/|$)##) {
2907 $p = $u;
2908 $u = $url;
2909 $repo_id = $self->{repo_id};
2910 }
2911 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2912 }
2913 $gs
2914 }
2915
2916 sub call_authors_prog {
2917 my ($orig_author) = @_;
2918 $orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author);
2919 my $author = `$::_authors_prog $orig_author`;
2920 if ($? != 0) {
2921 die "$::_authors_prog failed with exit code $?\n"
2922 }
2923 if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) {
2924 my ($name, $email) = ($1, $2);
2925 $email = undef if length $2 == 0;
2926 return [$name, $email];
2927 } else {
2928 die "Author: $orig_author: $::_authors_prog returned "
2929 . "invalid author format: $author\n";
2930 }
2931 }
2932
2933 sub check_author {
2934 my ($author) = @_;
2935 if (!defined $author || length $author == 0) {
2936 $author = '(no author)';
2937 }
2938 if (!defined $::users{$author}) {
2939 if (defined $::_authors_prog) {
2940 $::users{$author} = call_authors_prog($author);
2941 } elsif (defined $::_authors) {
2942 die "Author: $author not defined in $::_authors file\n";
2943 }
2944 }
2945 $author;
2946 }
2947
2948 sub find_extra_svk_parents {
2949 my ($self, $ed, $tickets, $parents) = @_;
2950 # aha! svk:merge property changed...
2951 my @tickets = split "\n", $tickets;
2952 my @known_parents;
2953 for my $ticket ( @tickets ) {
2954 my ($uuid, $path, $rev) = split /:/, $ticket;
2955 if ( $uuid eq $self->ra_uuid ) {
2956 my $url = $self->rewrite_root || $self->{url};
2957 my $repos_root = $url;
2958 my $branch_from = $path;
2959 $branch_from =~ s{^/}{};
2960 my $gs = $self->other_gs($repos_root."/".$branch_from,
2961 $url,
2962 $branch_from,
2963 $rev,
2964 $self->{ref_id});
2965 if ( my $commit = $gs->rev_map_get($rev, $uuid) ) {
2966 # wahey! we found it, but it might be
2967 # an old one (!)
2968 push @known_parents, [ $rev, $commit ];
2969 }
2970 }
2971 }
2972 # Ordering matters; highest-numbered commit merge tickets
2973 # first, as they may account for later merge ticket additions
2974 # or changes.
2975 @known_parents = map {$_->[1]} sort {$b->[0] <=> $a->[0]} @known_parents;
2976 for my $parent ( @known_parents ) {
2977 my @cmd = ('rev-list', $parent, map { "^$_" } @$parents );
2978 my ($msg_fh, $ctx) = command_output_pipe(@cmd);
2979 my $new;
2980 while ( <$msg_fh> ) {
2981 $new=1;last;
2982 }
2983 command_close_pipe($msg_fh, $ctx);
2984 if ( $new ) {
2985 print STDERR
2986 "Found merge parent (svk:merge ticket): $parent\n";
2987 push @$parents, $parent;
2988 }
2989 }
2990 }
2991
2992 sub lookup_svn_merge {
2993 my $uuid = shift;
2994 my $url = shift;
2995 my $merge = shift;
2996
2997 my ($source, $revs) = split ":", $merge;
2998 my $path = $source;
2999 $path =~ s{^/}{};
3000 my $gs = Git::SVN->find_by_url($url.$source, $url, $path);
3001 if ( !$gs ) {
3002 warn "Couldn't find revmap for $url$source\n";
3003 return;
3004 }
3005 my @ranges = split ",", $revs;
3006 my ($tip, $tip_commit);
3007 my @merged_commit_ranges;
3008 # find the tip
3009 for my $range ( @ranges ) {
3010 my ($bottom, $top) = split "-", $range;
3011 $top ||= $bottom;
3012 my $bottom_commit = $gs->find_rev_after( $bottom, 1, $top );
3013 my $top_commit = $gs->find_rev_before( $top, 1, $bottom );
3014
3015 unless ($top_commit and $bottom_commit) {
3016 warn "W:unknown path/rev in svn:mergeinfo "
3017 ."dirprop: $source:$range\n";
3018 next;
3019 }
3020
3021 push @merged_commit_ranges,
3022 "$bottom_commit^..$top_commit";
3023
3024 if ( !defined $tip or $top > $tip ) {
3025 $tip = $top;
3026 $tip_commit = $top_commit;
3027 }
3028 }
3029 return ($tip_commit, @merged_commit_ranges);
3030 }
3031
3032 sub _rev_list {
3033 my ($msg_fh, $ctx) = command_output_pipe(
3034 "rev-list", @_,
3035 );
3036 my @rv;
3037 while ( <$msg_fh> ) {
3038 chomp;
3039 push @rv, $_;
3040 }
3041 command_close_pipe($msg_fh, $ctx);
3042 @rv;
3043 }
3044
3045 sub check_cherry_pick {
3046 my $base = shift;
3047 my $tip = shift;
3048 my @ranges = @_;
3049 my %commits = map { $_ => 1 }
3050 _rev_list("--no-merges", $tip, "--not", $base);
3051 for my $range ( @ranges ) {
3052 delete @commits{_rev_list($range)};
3053 }
3054 return (keys %commits);
3055 }
3056
3057 BEGIN {
3058 memoize 'lookup_svn_merge';
3059 memoize 'check_cherry_pick';
3060 }
3061
3062 sub parents_exclude {
3063 my $parents = shift;
3064 my @commits = @_;
3065 return unless @commits;
3066
3067 my @excluded;
3068 my $excluded;
3069 do {
3070 my @cmd = ('rev-list', "-1", @commits, "--not", @$parents );
3071 $excluded = command_oneline(@cmd);
3072 if ( $excluded ) {
3073 my @new;
3074 my $found;
3075 for my $commit ( @commits ) {
3076 if ( $commit eq $excluded ) {
3077 push @excluded, $commit;
3078 $found++;
3079 last;
3080 }
3081 else {
3082 push @new, $commit;
3083 }
3084 }
3085 die "saw commit '$excluded' in rev-list output, "
3086 ."but we didn't ask for that commit (wanted: @commits --not @$parents)"
3087 unless $found;
3088 @commits = @new;
3089 }
3090 }
3091 while ($excluded and @commits);
3092
3093 return @excluded;
3094 }
3095
3096
3097 # note: this function should only be called if the various dirprops
3098 # have actually changed
3099 sub find_extra_svn_parents {
3100 my ($self, $ed, $mergeinfo, $parents) = @_;
3101 # aha! svk:merge property changed...
3102
3103 # We first search for merged tips which are not in our
3104 # history. Then, we figure out which git revisions are in
3105 # that tip, but not this revision. If all of those revisions
3106 # are now marked as merge, we can add the tip as a parent.
3107 my @merges = split "\n", $mergeinfo;
3108 my @merge_tips;
3109 my $url = $self->rewrite_root || $self->{url};
3110 my $uuid = $self->ra_uuid;
3111 my %ranges;
3112 for my $merge ( @merges ) {
3113 my ($tip_commit, @ranges) =
3114 lookup_svn_merge( $uuid, $url, $merge );
3115 unless (!$tip_commit or
3116 grep { $_ eq $tip_commit } @$parents ) {
3117 push @merge_tips, $tip_commit;
3118 $ranges{$tip_commit} = \@ranges;
3119 } else {
3120 push @merge_tips, undef;
3121 }
3122 }
3123
3124 my %excluded = map { $_ => 1 }
3125 parents_exclude($parents, grep { defined } @merge_tips);
3126
3127 # check merge tips for new parents
3128 my @new_parents;
3129 for my $merge_tip ( @merge_tips ) {
3130 my $spec = shift @merges;
3131 next unless $merge_tip and $excluded{$merge_tip};
3132
3133 my $ranges = $ranges{$merge_tip};
3134
3135 # check out 'new' tips
3136 my $merge_base = command_oneline(
3137 "merge-base",
3138 @$parents, $merge_tip,
3139 );
3140
3141 # double check that there are no missing non-merge commits
3142 my (@incomplete) = check_cherry_pick(
3143 $merge_base, $merge_tip,
3144 @$ranges,
3145 );
3146
3147 if ( @incomplete ) {
3148 warn "W:svn cherry-pick ignored ($spec) - missing "
3149 .@incomplete." commit(s) (eg $incomplete[0])\n";
3150 } else {
3151 warn
3152 "Found merge parent (svn:mergeinfo prop): ",
3153 $merge_tip, "\n";
3154 push @new_parents, $merge_tip;
3155 }
3156 }
3157
3158 # cater for merges which merge commits from multiple branches
3159 if ( @new_parents > 1 ) {
3160 for ( my $i = 0; $i <= $#new_parents; $i++ ) {
3161 for ( my $j = 0; $j <= $#new_parents; $j++ ) {
3162 next if $i == $j;
3163 next unless $new_parents[$i];
3164 next unless $new_parents[$j];
3165 my $revs = command_oneline(
3166 "rev-list", "-1", "$i..$j",
3167 );
3168 if ( !$revs ) {
3169 undef($new_parents[$i]);
3170 }
3171 }
3172 }
3173 }
3174 push @$parents, grep { defined } @new_parents;
3175 }
3176
3177 sub make_log_entry {
3178 my ($self, $rev, $parents, $ed) = @_;
3179 my $untracked = $self->get_untracked($ed);
3180
3181 my @parents = @$parents;
3182 my $ps = $ed->{path_strip} || "";
3183 for my $path ( grep { m/$ps/ } %{$ed->{dir_prop}} ) {
3184 my $props = $ed->{dir_prop}{$path};
3185 if ( $props->{"svk:merge"} ) {
3186 $self->find_extra_svk_parents
3187 ($ed, $props->{"svk:merge"}, \@parents);
3188 }
3189 if ( $props->{"svn:mergeinfo"} ) {
3190 $self->find_extra_svn_parents
3191 ($ed,
3192 $props->{"svn:mergeinfo"},
3193 \@parents);
3194 }
3195 }
3196
3197 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
3198 print $un "r$rev\n" or croak $!;
3199 print $un $_, "\n" foreach @$untracked;
3200 my %log_entry = ( parents => \@parents, revision => $rev,
3201 log => '');
3202
3203 my $headrev;
3204 my $logged = delete $self->{logged_rev_props};
3205 if (!$logged || $self->{-want_revprops}) {
3206 my $rp = $self->ra->rev_proplist($rev);
3207 foreach (sort keys %$rp) {
3208 my $v = $rp->{$_};
3209 if (/^svn:(author|date|log)$/) {
3210 $log_entry{$1} = $v;
3211 } elsif ($_ eq 'svm:headrev') {
3212 $headrev = $v;
3213 } else {
3214 print $un " rev_prop: ", uri_encode($_), ' ',
3215 uri_encode($v), "\n";
3216 }
3217 }
3218 } else {
3219 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
3220 }
3221 close $un or croak $!;
3222
3223 $log_entry{date} = parse_svn_date($log_entry{date});
3224 $log_entry{log} .= "\n";
3225 my $author = $log_entry{author} = check_author($log_entry{author});
3226 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
3227 : ($author, undef);
3228
3229 my ($commit_name, $commit_email) = ($name, $email);
3230 if ($_use_log_author) {
3231 my $name_field;
3232 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
3233 $name_field = $1;
3234 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
3235 $name_field = $1;
3236 }
3237 if (!defined $name_field) {
3238 if (!defined $email) {
3239 $email = $name;
3240 }
3241 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
3242 ($name, $email) = ($1, $2);
3243 } elsif ($name_field =~ /(.*)@/) {
3244 ($name, $email) = ($1, $name_field);
3245 } else {
3246 ($name, $email) = ($name_field, $name_field);
3247 }
3248 }
3249 if (defined $headrev && $self->use_svm_props) {
3250 if ($self->rewrite_root) {
3251 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
3252 "options set!\n";
3253 }
3254 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i;
3255 # we don't want "SVM: initializing mirror for junk" ...
3256 return undef if $r == 0;
3257 my $svm = $self->svm;
3258 if ($uuid ne $svm->{uuid}) {
3259 die "UUID mismatch on SVM path:\n",
3260 "expected: $svm->{uuid}\n",
3261 " got: $uuid\n";
3262 }
3263 my $full_url = $self->full_url;
3264 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
3265 die "Failed to replace '$svm->{replace}' with ",
3266 "'$svm->{source}' in $full_url\n";
3267 # throw away username for storing in records
3268 remove_username($full_url);
3269 $log_entry{metadata} = "$full_url\@$r $uuid";
3270 $log_entry{svm_revision} = $r;
3271 $email ||= "$author\@$uuid";
3272 $commit_email ||= "$author\@$uuid";
3273 } elsif ($self->use_svnsync_props) {
3274 my $full_url = $self->svnsync->{url};
3275 $full_url .= "/$self->{path}" if length $self->{path};
3276 remove_username($full_url);
3277 my $uuid = $self->svnsync->{uuid};
3278 $log_entry{metadata} = "$full_url\@$rev $uuid";
3279 $email ||= "$author\@$uuid";
3280 $commit_email ||= "$author\@$uuid";
3281 } else {
3282 my $url = $self->metadata_url;
3283 remove_username($url);
3284 $log_entry{metadata} = "$url\@$rev " .
3285 $self->ra->get_uuid;
3286 $email ||= "$author\@" . $self->ra->get_uuid;
3287 $commit_email ||= "$author\@" . $self->ra->get_uuid;
3288 }
3289 $log_entry{name} = $name;
3290 $log_entry{email} = $email;
3291 $log_entry{commit_name} = $commit_name;
3292 $log_entry{commit_email} = $commit_email;
3293 \%log_entry;
3294 }
3295
3296 sub fetch {
3297 my ($self, $min_rev, $max_rev, @parents) = @_;
3298 my ($last_rev, $last_commit) = $self->last_rev_commit;
3299 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
3300 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
3301 }
3302
3303 sub set_tree_cb {
3304 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
3305 $self->{inject_parents} = { $rev => $tree };
3306 $self->fetch(undef, undef);
3307 }
3308
3309 sub set_tree {
3310 my ($self, $tree) = (shift, shift);
3311 my $log_entry = ::get_commit_entry($tree);
3312 unless ($self->{last_rev}) {
3313 ::fatal("Must have an existing revision to commit");
3314 }
3315 my %ed_opts = ( r => $self->{last_rev},
3316 log => $log_entry->{log},
3317 ra => $self->ra,
3318 tree_a => $self->{last_commit},
3319 tree_b => $tree,
3320 editor_cb => sub {
3321 $self->set_tree_cb($log_entry, $tree, @_) },
3322 svn_path => $self->{path} );
3323 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
3324 print "No changes\nr$self->{last_rev} = $tree\n";
3325 }
3326 }
3327
3328 sub rebuild_from_rev_db {
3329 my ($self, $path) = @_;
3330 my $r = -1;
3331 open my $fh, '<', $path or croak "open: $!";
3332 binmode $fh or croak "binmode: $!";
3333 while (<$fh>) {
3334 length($_) == 41 or croak "inconsistent size in ($_) != 41";
3335 chomp($_);
3336 ++$r;
3337 next if $_ eq ('0' x 40);
3338 $self->rev_map_set($r, $_);
3339 print "r$r = $_\n";
3340 }
3341 close $fh or croak "close: $!";
3342 unlink $path or croak "unlink: $!";
3343 }
3344
3345 sub rebuild {
3346 my ($self) = @_;
3347 my $map_path = $self->map_path;
3348 my $partial = (-e $map_path && ! -z $map_path);
3349 return unless ::verify_ref($self->refname.'^0');
3350 if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
3351 my $rev_db = $self->rev_db_path;
3352 $self->rebuild_from_rev_db($rev_db);
3353 if ($self->use_svm_props) {
3354 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
3355 $self->rebuild_from_rev_db($svm_rev_db);
3356 }
3357 $self->unlink_rev_db_symlink;
3358 return;
3359 }
3360 print "Rebuilding $map_path ...\n" if (!$partial);
3361 my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
3362 (undef, undef));
3363 my ($log, $ctx) =
3364 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
3365 ($head ? "$head.." : "") . $self->refname,
3366 '--');
3367 my $metadata_url = $self->metadata_url;
3368 remove_username($metadata_url);
3369 my $svn_uuid = $self->ra_uuid;
3370 my $c;
3371 while (<$log>) {
3372 if ( m{^commit ($::sha1)$} ) {
3373 $c = $1;
3374 next;
3375 }
3376 next unless s{^\s*(git-svn-id:)}{$1};
3377 my ($url, $rev, $uuid) = ::extract_metadata($_);
3378 remove_username($url);
3379
3380 # ignore merges (from set-tree)
3381 next if (!defined $rev || !$uuid);
3382
3383 # if we merged or otherwise started elsewhere, this is
3384 # how we break out of it
3385 if (($uuid ne $svn_uuid) ||
3386 ($metadata_url && $url && ($url ne $metadata_url))) {
3387 next;
3388 }
3389 if ($partial && $head) {
3390 print "Partial-rebuilding $map_path ...\n";
3391 print "Currently at $base_rev = $head\n";
3392 $head = undef;
3393 }
3394
3395 $self->rev_map_set($rev, $c);
3396 print "r$rev = $c\n";
3397 }
3398 command_close_pipe($log, $ctx);
3399 print "Done rebuilding $map_path\n" if (!$partial || !$head);
3400 my $rev_db_path = $self->rev_db_path;
3401 if (-f $self->rev_db_path) {
3402 unlink $self->rev_db_path or croak "unlink: $!";
3403 }
3404 $self->unlink_rev_db_symlink;
3405 }
3406
3407 # rev_map:
3408 # Tie::File seems to be prone to offset errors if revisions get sparse,
3409 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
3410 # one of my favorite modules is out :< Next up would be one of the DBM
3411 # modules, but I'm not sure which is most portable...
3412 #
3413 # This is the replacement for the rev_db format, which was too big
3414 # and inefficient for large repositories with a lot of sparse history
3415 # (mainly tags)
3416 #
3417 # The format is this:
3418 # - 24 bytes for every record,
3419 # * 4 bytes for the integer representing an SVN revision number
3420 # * 20 bytes representing the sha1 of a git commit
3421 # - No empty padding records like the old format
3422 # (except the last record, which can be overwritten)
3423 # - new records are written append-only since SVN revision numbers
3424 # increase monotonically
3425 # - lookups on SVN revision number are done via a binary search
3426 # - Piping the file to xxd -c24 is a good way of dumping it for
3427 # viewing or editing (piped back through xxd -r), should the need
3428 # ever arise.
3429 # - The last record can be padding revision with an all-zero sha1
3430 # This is used to optimize fetch performance when using multiple
3431 # "fetch" directives in .git/config
3432 #
3433 # These files are disposable unless noMetadata or useSvmProps is set
3434
3435 sub _rev_map_set {
3436 my ($fh, $rev, $commit) = @_;
3437
3438 binmode $fh or croak "binmode: $!";
3439 my $size = (stat($fh))[7];
3440 ($size % 24) == 0 or croak "inconsistent size: $size";
3441
3442 my $wr_offset = 0;
3443 if ($size > 0) {
3444 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
3445 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
3446 $read == 24 or croak "read only $read bytes (!= 24)";
3447 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
3448 if ($last_commit eq ('0' x40)) {
3449 if ($size >= 48) {
3450 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
3451 $read = sysread($fh, $buf, 24) or
3452 croak "read: $!";
3453 $read == 24 or
3454 croak "read only $read bytes (!= 24)";
3455 ($last_rev, $last_commit) =
3456 unpack(rev_map_fmt, $buf);
3457 if ($last_commit eq ('0' x40)) {
3458 croak "inconsistent .rev_map\n";
3459 }
3460 }
3461 if ($last_rev >= $rev) {
3462 croak "last_rev is higher!: $last_rev >= $rev";
3463 }
3464 $wr_offset = -24;
3465 }
3466 }
3467 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
3468 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
3469 croak "write: $!";
3470 }
3471
3472 sub _rev_map_reset {
3473 my ($fh, $rev, $commit) = @_;
3474 my $c = _rev_map_get($fh, $rev);
3475 $c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n";
3476 my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!";
3477 truncate $fh, $offset or croak "truncate: $!";
3478 }
3479
3480 sub mkfile {
3481 my ($path) = @_;
3482 unless (-e $path) {
3483 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
3484 mkpath([$dir]) unless -d $dir;
3485 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
3486 close $fh or die "Couldn't close (create) $path: $!\n";
3487 }
3488 }
3489
3490 sub rev_map_set {
3491 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
3492 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
3493 my $db = $self->map_path($uuid);
3494 my $db_lock = "$db.lock";
3495 my $sig;
3496 $update_ref ||= 0;
3497 if ($update_ref) {
3498 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
3499 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
3500 }
3501 mkfile($db);
3502
3503 $LOCKFILES{$db_lock} = 1;
3504 my $sync;
3505 # both of these options make our .rev_db file very, very important
3506 # and we can't afford to lose it because rebuild() won't work
3507 if ($self->use_svm_props || $self->no_metadata) {
3508 $sync = 1;
3509 copy($db, $db_lock) or die "rev_map_set(@_): ",
3510 "Failed to copy: ",
3511 "$db => $db_lock ($!)\n";
3512 } else {
3513 rename $db, $db_lock or die "rev_map_set(@_): ",
3514 "Failed to rename: ",
3515 "$db => $db_lock ($!)\n";
3516 }
3517
3518 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
3519 or croak "Couldn't open $db_lock: $!\n";
3520 $update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) :
3521 _rev_map_set($fh, $rev, $commit);
3522 if ($sync) {
3523 $fh->flush or die "Couldn't flush $db_lock: $!\n";
3524 $fh->sync or die "Couldn't sync $db_lock: $!\n";
3525 }
3526 close $fh or croak $!;
3527 if ($update_ref) {
3528 $_head = $self;
3529 my $note = "";
3530 $note = " ($update_ref)" if ($update_ref !~ /^\d*$/);
3531 command_noisy('update-ref', '-m', "r$rev$note",
3532 $self->refname, $commit);
3533 }
3534 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
3535 "$db_lock => $db ($!)\n";
3536 delete $LOCKFILES{$db_lock};
3537 if ($update_ref) {
3538 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
3539 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
3540 kill $sig, $$ if defined $sig;
3541 }
3542 }
3543
3544 # If want_commit, this will return an array of (rev, commit) where
3545 # commit _must_ be a valid commit in the archive.
3546 # Otherwise, it'll return the max revision (whether or not the
3547 # commit is valid or just a 0x40 placeholder).
3548 sub rev_map_max {
3549 my ($self, $want_commit) = @_;
3550 $self->rebuild;
3551 my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
3552 $want_commit ? ($r, $c) : $r;
3553 }
3554
3555 sub rev_map_max_norebuild {
3556 my ($self, $want_commit) = @_;
3557 my $map_path = $self->map_path;
3558 stat $map_path or return $want_commit ? (0, undef) : 0;
3559 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
3560 binmode $fh or croak "binmode: $!";
3561 my $size = (stat($fh))[7];
3562 ($size % 24) == 0 or croak "inconsistent size: $size";
3563
3564 if ($size == 0) {
3565 close $fh or croak "close: $!";
3566 return $want_commit ? (0, undef) : 0;
3567 }
3568
3569 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
3570 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3571 my ($r, $c) = unpack(rev_map_fmt, $buf);
3572 if ($want_commit && $c eq ('0' x40)) {
3573 if ($size < 48) {
3574 return $want_commit ? (0, undef) : 0;
3575 }
3576 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
3577 sysread($fh, $buf, 24) == 24 or croak "read: $!";
3578 ($r, $c) = unpack(rev_map_fmt, $buf);
3579 if ($c eq ('0'x40)) {
3580 croak "Penultimate record is all-zeroes in $map_path";
3581 }
3582 }
3583 close $fh or croak "close: $!";
3584 $want_commit ? ($r, $c) : $r;
3585 }
3586
3587 sub rev_map_get {
3588 my ($self, $rev, $uuid) = @_;
3589 my $map_path = $self->map_path($uuid);
3590 return undef unless -e $map_path;
3591
3592 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
3593 my $c = _rev_map_get($fh, $rev);
3594 close($fh) or croak "close: $!";
3595 $c
3596 }
3597
3598 sub _rev_map_get {
3599 my ($fh, $rev) = @_;
3600
3601 binmode $fh or croak "binmode: $!";
3602 my $size = (stat($fh))[7];
3603 ($size % 24) == 0 or croak "inconsistent size: $size";
3604
3605 if ($size == 0) {
3606 return undef;
3607 }
3608
3609 my ($l, $u) = (0, $size - 24);
3610 my ($r, $c, $buf);
3611
3612 while ($l <= $u) {
3613 my $i = int(($l/24 + $u/24) / 2) * 24;
3614 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
3615 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3616 my ($r, $c) = unpack(rev_map_fmt, $buf);
3617
3618 if ($r < $rev) {
3619 $l = $i + 24;
3620 } elsif ($r > $rev) {
3621 $u = $i - 24;
3622 } else { # $r == $rev
3623 return $c eq ('0' x 40) ? undef : $c;
3624 }
3625 }
3626 undef;
3627 }
3628
3629 # Finds the first svn revision that exists on (if $eq_ok is true) or
3630 # before $rev for the current branch. It will not search any lower
3631 # than $min_rev. Returns the git commit hash and svn revision number
3632 # if found, else (undef, undef).
3633 sub find_rev_before {
3634 my ($self, $rev, $eq_ok, $min_rev) = @_;
3635 --$rev unless $eq_ok;
3636 $min_rev ||= 1;
3637 my $max_rev = $self->rev_map_max;
3638 $rev = $max_rev if ($rev > $max_rev);
3639 while ($rev >= $min_rev) {
3640 if (my $c = $self->rev_map_get($rev)) {
3641 return ($rev, $c);
3642 }
3643 --$rev;
3644 }
3645 return (undef, undef);
3646 }
3647
3648 # Finds the first svn revision that exists on (if $eq_ok is true) or
3649 # after $rev for the current branch. It will not search any higher
3650 # than $max_rev. Returns the git commit hash and svn revision number
3651 # if found, else (undef, undef).
3652 sub find_rev_after {
3653 my ($self, $rev, $eq_ok, $max_rev) = @_;
3654 ++$rev unless $eq_ok;
3655 $max_rev ||= $self->rev_map_max;
3656 while ($rev <= $max_rev) {
3657 if (my $c = $self->rev_map_get($rev)) {
3658 return ($rev, $c);
3659 }
3660 ++$rev;
3661 }
3662 return (undef, undef);
3663 }
3664
3665 sub _new {
3666 my ($class, $repo_id, $ref_id, $path) = @_;
3667 unless (defined $repo_id && length $repo_id) {
3668 $repo_id = $Git::SVN::default_repo_id;
3669 }
3670 unless (defined $ref_id && length $ref_id) {
3671 $_prefix = '' unless defined($_prefix);
3672 $_[2] = $ref_id =
3673 "refs/remotes/$_prefix$Git::SVN::default_ref_id";
3674 }
3675 $_[1] = $repo_id;
3676 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
3677
3678 # Older repos imported by us used $GIT_DIR/svn/foo instead of
3679 # $GIT_DIR/svn/refs/remotes/foo when tracking refs/remotes/foo
3680 if ($ref_id =~ m{^refs/remotes/(.*)}) {
3681 my $old_dir = "$ENV{GIT_DIR}/svn/$1";
3682 if (-d $old_dir && ! -d $dir) {
3683 $dir = $old_dir;
3684 }
3685 }
3686
3687 $_[3] = $path = '' unless (defined $path);
3688 mkpath([$dir]);
3689 bless {
3690 ref_id => $ref_id, dir => $dir, index => "$dir/index",
3691 path => $path, config => "$ENV{GIT_DIR}/svn/config",
3692 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
3693 }
3694
3695 # for read-only access of old .rev_db formats
3696 sub unlink_rev_db_symlink {
3697 my ($self) = @_;
3698 my $link = $self->rev_db_path;
3699 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
3700 if (-l $link) {
3701 unlink $link or croak "unlink: $link failed!";
3702 }
3703 }
3704
3705 sub rev_db_path {
3706 my ($self, $uuid) = @_;
3707 my $db_path = $self->map_path($uuid);
3708 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
3709 or croak "map_path: $db_path does not contain '/.rev_map.' !";
3710 $db_path;
3711 }
3712
3713 # the new replacement for .rev_db
3714 sub map_path {
3715 my ($self, $uuid) = @_;
3716 $uuid ||= $self->ra_uuid;
3717 "$self->{map_root}.$uuid";
3718 }
3719
3720 sub uri_encode {
3721 my ($f) = @_;
3722 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
3723 $f
3724 }
3725
3726 sub uri_decode {
3727 my ($f) = @_;
3728 $f =~ s#%([0-9a-fA-F]{2})#chr(hex($1))#eg;
3729 $f
3730 }
3731
3732 sub remove_username {
3733 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
3734 }
3735
3736 package Git::SVN::Prompt;
3737 use strict;
3738 use warnings;
3739 require SVN::Core;
3740 use vars qw/$_no_auth_cache $_username/;
3741
3742 sub simple {
3743 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
3744 $may_save = undef if $_no_auth_cache;
3745 $default_username = $_username if defined $_username;
3746 if (defined $default_username && length $default_username) {
3747 if (defined $realm && length $realm) {
3748 print STDERR "Authentication realm: $realm\n";
3749 STDERR->flush;
3750 }
3751 $cred->username($default_username);
3752 } else {
3753 username($cred, $realm, $may_save, $pool);
3754 }
3755 $cred->password(_read_password("Password for '" .
3756 $cred->username . "': ", $realm));
3757 $cred->may_save($may_save);
3758 $SVN::_Core::SVN_NO_ERROR;
3759 }
3760
3761 sub ssl_server_trust {
3762 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
3763 $may_save = undef if $_no_auth_cache;
3764 print STDERR "Error validating server certificate for '$realm':\n";
3765 {
3766 no warnings 'once';
3767 # All variables SVN::Auth::SSL::* are used only once,
3768 # so we're shutting up Perl warnings about this.
3769 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
3770 print STDERR " - The certificate is not issued ",
3771 "by a trusted authority. Use the\n",
3772 " fingerprint to validate ",
3773 "the certificate manually!\n";
3774 }
3775 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
3776 print STDERR " - The certificate hostname ",
3777 "does not match.\n";
3778 }
3779 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
3780 print STDERR " - The certificate is not yet valid.\n";
3781 }
3782 if ($failures & $SVN::Auth::SSL::EXPIRED) {
3783 print STDERR " - The certificate has expired.\n";
3784 }
3785 if ($failures & $SVN::Auth::SSL::OTHER) {
3786 print STDERR " - The certificate has ",
3787 "an unknown error.\n";
3788 }
3789 } # no warnings 'once'
3790 printf STDERR
3791 "Certificate information:\n".
3792 " - Hostname: %s\n".
3793 " - Valid: from %s until %s\n".
3794 " - Issuer: %s\n".
3795 " - Fingerprint: %s\n",
3796 map $cert_info->$_, qw(hostname valid_from valid_until
3797 issuer_dname fingerprint);
3798 my $choice;
3799 prompt:
3800 print STDERR $may_save ?
3801 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
3802 "(R)eject or accept (t)emporarily? ";
3803 STDERR->flush;
3804 $choice = lc(substr(<STDIN> || 'R', 0, 1));
3805 if ($choice =~ /^t$/i) {
3806 $cred->may_save(undef);
3807 } elsif ($choice =~ /^r$/i) {
3808 return -1;
3809 } elsif ($may_save && $choice =~ /^p$/i) {
3810 $cred->may_save($may_save);
3811 } else {
3812 goto prompt;
3813 }
3814 $cred->accepted_failures($failures);
3815 $SVN::_Core::SVN_NO_ERROR;
3816 }
3817
3818 sub ssl_client_cert {
3819 my ($cred, $realm, $may_save, $pool) = @_;
3820 $may_save = undef if $_no_auth_cache;
3821 print STDERR "Client certificate filename: ";
3822 STDERR->flush;
3823 chomp(my $filename = <STDIN>);
3824 $cred->cert_file($filename);
3825 $cred->may_save($may_save);
3826 $SVN::_Core::SVN_NO_ERROR;
3827 }
3828
3829 sub ssl_client_cert_pw {
3830 my ($cred, $realm, $may_save, $pool) = @_;
3831 $may_save = undef if $_no_auth_cache;
3832 $cred->password(_read_password("Password: ", $realm));
3833 $cred->may_save($may_save);
3834 $SVN::_Core::SVN_NO_ERROR;
3835 }
3836
3837 sub username {
3838 my ($cred, $realm, $may_save, $pool) = @_;
3839 $may_save = undef if $_no_auth_cache;
3840 if (defined $realm && length $realm) {
3841 print STDERR "Authentication realm: $realm\n";
3842 }
3843 my $username;
3844 if (defined $_username) {
3845 $username = $_username;
3846 } else {
3847 print STDERR "Username: ";
3848 STDERR->flush;
3849 chomp($username = <STDIN>);
3850 }
3851 $cred->username($username);
3852 $cred->may_save($may_save);
3853 $SVN::_Core::SVN_NO_ERROR;
3854 }
3855
3856 sub _read_password {
3857 my ($prompt, $realm) = @_;
3858 print STDERR $prompt;
3859 STDERR->flush;
3860 require Term::ReadKey;
3861 Term::ReadKey::ReadMode('noecho');
3862 my $password = '';
3863 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3864 last if $key =~ /[\012\015]/; # \n\r
3865 $password .= $key;
3866 }
3867 Term::ReadKey::ReadMode('restore');
3868 print STDERR "\n";
3869 STDERR->flush;
3870 $password;
3871 }
3872
3873 package SVN::Git::Fetcher;
3874 use vars qw/@ISA/;
3875 use strict;
3876 use warnings;
3877 use Carp qw/croak/;
3878 use File::Temp qw/tempfile/;
3879 use IO::File qw//;
3880 use vars qw/$_ignore_regex/;
3881
3882 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3883 sub new {
3884 my ($class, $git_svn, $switch_path) = @_;
3885 my $self = SVN::Delta::Editor->new;
3886 bless $self, $class;
3887 if (exists $git_svn->{last_commit}) {
3888 $self->{c} = $git_svn->{last_commit};
3889 $self->{empty_symlinks} =
3890 _mark_empty_symlinks($git_svn, $switch_path);
3891 }
3892 $self->{ignore_regex} = eval { command_oneline('config', '--get',
3893 "svn-remote.$git_svn->{repo_id}.ignore-paths") };
3894 $self->{empty} = {};
3895 $self->{dir_prop} = {};
3896 $self->{file_prop} = {};
3897 $self->{absent_dir} = {};
3898 $self->{absent_file} = {};
3899 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3900 $self;
3901 }
3902
3903 # this uses the Ra object, so it must be called before do_{switch,update},
3904 # not inside them (when the Git::SVN::Fetcher object is passed) to
3905 # do_{switch,update}
3906 sub _mark_empty_symlinks {
3907 my ($git_svn, $switch_path) = @_;
3908 my $bool = Git::config_bool('svn.brokenSymlinkWorkaround');
3909 return {} if (!defined($bool)) || (defined($bool) && ! $bool);
3910
3911 my %ret;
3912 my ($rev, $cmt) = $git_svn->last_rev_commit;
3913 return {} unless ($rev && $cmt);
3914
3915 # allow the warning to be printed for each revision we fetch to
3916 # ensure the user sees it. The user can also disable the workaround
3917 # on the repository even while git svn is running and the next
3918 # revision fetched will skip this expensive function.
3919 my $printed_warning;
3920 chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`);
3921 my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt);
3922 local $/ = "\0";
3923 my $pfx = defined($switch_path) ? $switch_path : $git_svn->{path};
3924 $pfx .= '/' if length($pfx);
3925 while (<$ls>) {
3926 chomp;
3927 s/\A100644 blob $empty_blob\t//o or next;
3928 unless ($printed_warning) {
3929 print STDERR "Scanning for empty symlinks, ",
3930 "this may take a while if you have ",
3931 "many empty files\n",
3932 "You may disable this with `",
3933 "git config svn.brokenSymlinkWorkaround ",
3934 "false'.\n",
3935 "This may be done in a different ",
3936 "terminal without restarting ",
3937 "git svn\n";
3938 $printed_warning = 1;
3939 }
3940 my $path = $_;
3941 my (undef, $props) =
3942 $git_svn->ra->get_file($pfx.$path, $rev, undef);
3943 if ($props->{'svn:special'}) {
3944 $ret{$path} = 1;
3945 }
3946 }
3947 command_close_pipe($ls, $ctx);
3948 \%ret;
3949 }
3950
3951 # returns true if a given path is inside a ".git" directory
3952 sub in_dot_git {
3953 $_[0] =~ m{(?:^|/)\.git(?:/|$)};
3954 }
3955
3956 # return value: 0 -- don't ignore, 1 -- ignore
3957 sub is_path_ignored {
3958 my ($self, $path) = @_;
3959 return 1 if in_dot_git($path);
3960 return 1 if defined($self->{ignore_regex}) &&
3961 $path =~ m!$self->{ignore_regex}!;
3962 return 0 unless defined($_ignore_regex);
3963 return 1 if $path =~ m!$_ignore_regex!o;
3964 return 0;
3965 }
3966
3967 sub set_path_strip {
3968 my ($self, $path) = @_;
3969 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3970 }
3971
3972 sub open_root {
3973 { path => '' };
3974 }
3975
3976 sub open_directory {
3977 my ($self, $path, $pb, $rev) = @_;
3978 { path => $path };
3979 }
3980
3981 sub git_path {
3982 my ($self, $path) = @_;
3983 if ($self->{path_strip}) {
3984 $path =~ s!$self->{path_strip}!! or
3985 die "Failed to strip path '$path' ($self->{path_strip})\n";
3986 }
3987 $path;
3988 }
3989
3990 sub delete_entry {
3991 my ($self, $path, $rev, $pb) = @_;
3992 return undef if $self->is_path_ignored($path);
3993
3994 my $gpath = $self->git_path($path);
3995 return undef if ($gpath eq '');
3996
3997 # remove entire directories.
3998 my ($tree) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
3999 =~ /\A040000 tree ([a-f\d]{40})\t\Q$gpath\E\0/);
4000 if ($tree) {
4001 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
4002 -r --name-only -z/,
4003 $tree);
4004 local $/ = "\0";
4005 while (<$ls>) {
4006 chomp;
4007 my $rmpath = "$gpath/$_";
4008 $self->{gii}->remove($rmpath);
4009 print "\tD\t$rmpath\n" unless $::_q;
4010 }
4011 print "\tD\t$gpath/\n" unless $::_q;
4012 command_close_pipe($ls, $ctx);
4013 } else {
4014 $self->{gii}->remove($gpath);
4015 print "\tD\t$gpath\n" unless $::_q;
4016 }
4017 $self->{empty}->{$path} = 0;
4018 undef;
4019 }
4020
4021 sub open_file {
4022 my ($self, $path, $pb, $rev) = @_;
4023 my ($mode, $blob);
4024
4025 goto out if $self->is_path_ignored($path);
4026
4027 my $gpath = $self->git_path($path);
4028 ($mode, $blob) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
4029 =~ /\A(\d{6}) blob ([a-f\d]{40})\t\Q$gpath\E\0/);
4030 unless (defined $mode && defined $blob) {
4031 die "$path was not found in commit $self->{c} (r$rev)\n";
4032 }
4033 if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) {
4034 $mode = '120000';
4035 }
4036 out:
4037 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
4038 pool => SVN::Pool->new, action => 'M' };
4039 }
4040
4041 sub add_file {
4042 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
4043 my $mode;
4044
4045 if (!$self->is_path_ignored($path)) {
4046 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
4047 delete $self->{empty}->{$dir};
4048 $mode = '100644';
4049 }
4050 { path => $path, mode_a => $mode, mode_b => $mode,
4051 pool => SVN::Pool->new, action => 'A' };
4052 }
4053
4054 sub add_directory {
4055 my ($self, $path, $cp_path, $cp_rev) = @_;
4056 goto out if $self->is_path_ignored($path);
4057 my $gpath = $self->git_path($path);
4058 if ($gpath eq '') {
4059 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
4060 -r --name-only -z/,
4061 $self->{c});
4062 local $/ = "\0";
4063 while (<$ls>) {
4064 chomp;
4065 $self->{gii}->remove($_);
4066 print "\tD\t$_\n" unless $::_q;
4067 }
4068 command_close_pipe($ls, $ctx);
4069 $self->{empty}->{$path} = 0;
4070 }
4071 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
4072 delete $self->{empty}->{$dir};
4073 $self->{empty}->{$path} = 1;
4074 out:
4075 { path => $path };
4076 }
4077
4078 sub change_dir_prop {
4079 my ($self, $db, $prop, $value) = @_;
4080 return undef if $self->is_path_ignored($db->{path});
4081 $self->{dir_prop}->{$db->{path}} ||= {};
4082 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
4083 undef;
4084 }
4085
4086 sub absent_directory {
4087 my ($self, $path, $pb) = @_;
4088 return undef if $self->is_path_ignored($path);
4089 $self->{absent_dir}->{$pb->{path}} ||= [];
4090 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
4091 undef;
4092 }
4093
4094 sub absent_file {
4095 my ($self, $path, $pb) = @_;
4096 return undef if $self->is_path_ignored($path);
4097 $self->{absent_file}->{$pb->{path}} ||= [];
4098 push @{$self->{absent_file}->{$pb->{path}}}, $path;
4099 undef;
4100 }
4101
4102 sub change_file_prop {
4103 my ($self, $fb, $prop, $value) = @_;
4104 return undef if $self->is_path_ignored($fb->{path});
4105 if ($prop eq 'svn:executable') {
4106 if ($fb->{mode_b} != 120000) {
4107 $fb->{mode_b} = defined $value ? 100755 : 100644;
4108 }
4109 } elsif ($prop eq 'svn:special') {
4110 $fb->{mode_b} = defined $value ? 120000 : 100644;
4111 } else {
4112 $self->{file_prop}->{$fb->{path}} ||= {};
4113 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
4114 }
4115 undef;
4116 }
4117
4118 sub apply_textdelta {
4119 my ($self, $fb, $exp) = @_;
4120 return undef if $self->is_path_ignored($fb->{path});
4121 my $fh = $::_repository->temp_acquire('svn_delta');
4122 # $fh gets auto-closed() by SVN::TxDelta::apply(),
4123 # (but $base does not,) so dup() it for reading in close_file
4124 open my $dup, '<&', $fh or croak $!;
4125 my $base = $::_repository->temp_acquire('git_blob');
4126
4127 if ($fb->{blob}) {
4128 my ($base_is_link, $size);
4129
4130 if ($fb->{mode_a} eq '120000' &&
4131 ! $self->{empty_symlinks}->{$fb->{path}}) {
4132 print $base 'link ' or die "print $!\n";
4133 $base_is_link = 1;
4134 }
4135 retry:
4136 $size = $::_repository->cat_blob($fb->{blob}, $base);
4137 die "Failed to read object $fb->{blob}" if ($size < 0);
4138
4139 if (defined $exp) {
4140 seek $base, 0, 0 or croak $!;
4141 my $got = ::md5sum($base);
4142 if ($got ne $exp) {
4143 my $err = "Checksum mismatch: ".
4144 "$fb->{path} $fb->{blob}\n" .
4145 "expected: $exp\n" .
4146 " got: $got\n";
4147 if ($base_is_link) {
4148 warn $err,
4149 "Retrying... (possibly ",
4150 "a bad symlink from SVN)\n";
4151 $::_repository->temp_reset($base);
4152 $base_is_link = 0;
4153 goto retry;
4154 }
4155 die $err;
4156 }
4157 }
4158 }
4159 seek $base, 0, 0 or croak $!;
4160 $fb->{fh} = $fh;
4161 $fb->{base} = $base;
4162 [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
4163 }
4164
4165 sub close_file {
4166 my ($self, $fb, $exp) = @_;
4167 return undef if $self->is_path_ignored($fb->{path});
4168
4169 my $hash;
4170 my $path = $self->git_path($fb->{path});
4171 if (my $fh = $fb->{fh}) {
4172 if (defined $exp) {
4173 seek($fh, 0, 0) or croak $!;
4174 my $got = ::md5sum($fh);
4175 if ($got ne $exp) {
4176 die "Checksum mismatch: $path\n",
4177 "expected: $exp\n got: $got\n";
4178 }
4179 }
4180 if ($fb->{mode_b} == 120000) {
4181 sysseek($fh, 0, 0) or croak $!;
4182 my $rd = sysread($fh, my $buf, 5);
4183
4184 if (!defined $rd) {
4185 croak "sysread: $!\n";
4186 } elsif ($rd == 0) {
4187 warn "$path has mode 120000",
4188 " but it points to nothing\n",
4189 "converting to an empty file with mode",
4190 " 100644\n";
4191 $fb->{mode_b} = '100644';
4192 } elsif ($buf ne 'link ') {
4193 warn "$path has mode 120000",
4194 " but is not a link\n";
4195 } else {
4196 my $tmp_fh = $::_repository->temp_acquire(
4197 'svn_hash');
4198 my $res;
4199 while ($res = sysread($fh, my $str, 1024)) {
4200 my $out = syswrite($tmp_fh, $str, $res);
4201 defined($out) && $out == $res
4202 or croak("write ",
4203 Git::temp_path($tmp_fh),
4204 ": $!\n");
4205 }
4206 defined $res or croak $!;
4207
4208 ($fh, $tmp_fh) = ($tmp_fh, $fh);
4209 Git::temp_release($tmp_fh, 1);
4210 }
4211 }
4212
4213 $hash = $::_repository->hash_and_insert_object(
4214 Git::temp_path($fh));
4215 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
4216
4217 Git::temp_release($fb->{base}, 1);
4218 Git::temp_release($fh, 1);
4219 } else {
4220 $hash = $fb->{blob} or die "no blob information\n";
4221 }
4222 $fb->{pool}->clear;
4223 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
4224 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
4225 undef;
4226 }
4227
4228 sub abort_edit {
4229 my $self = shift;
4230 $self->{nr} = $self->{gii}->{nr};
4231 delete $self->{gii};
4232 $self->SUPER::abort_edit(@_);
4233 }
4234
4235 sub close_edit {
4236 my $self = shift;
4237 $self->{git_commit_ok} = 1;
4238 $self->{nr} = $self->{gii}->{nr};
4239 delete $self->{gii};
4240 $self->SUPER::close_edit(@_);
4241 }
4242
4243 package SVN::Git::Editor;
4244 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
4245 use strict;
4246 use warnings;
4247 use Carp qw/croak/;
4248 use IO::File;
4249
4250 sub new {
4251 my ($class, $opts) = @_;
4252 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
4253 die "$_ required!\n" unless (defined $opts->{$_});
4254 }
4255
4256 my $pool = SVN::Pool->new;
4257 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
4258 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
4259 $opts->{r}, $mods);
4260
4261 # $opts->{ra} functions should not be used after this:
4262 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
4263 $opts->{editor_cb}, $pool);
4264 my $self = SVN::Delta::Editor->new(@ce, $pool);
4265 bless $self, $class;
4266 foreach (qw/svn_path r tree_a tree_b/) {
4267 $self->{$_} = $opts->{$_};
4268 }
4269 $self->{url} = $opts->{ra}->{url};
4270 $self->{mods} = $mods;
4271 $self->{types} = $types;
4272 $self->{pool} = $pool;
4273 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
4274 $self->{rm} = { };
4275 $self->{path_prefix} = length $self->{svn_path} ?
4276 "$self->{svn_path}/" : '';
4277 $self->{config} = $opts->{config};
4278 return $self;
4279 }
4280
4281 sub generate_diff {
4282 my ($tree_a, $tree_b) = @_;
4283 my @diff_tree = qw(diff-tree -z -r);
4284 if ($_cp_similarity) {
4285 push @diff_tree, "-C$_cp_similarity";
4286 } else {
4287 push @diff_tree, '-C';
4288 }
4289 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
4290 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
4291 push @diff_tree, $tree_a, $tree_b;
4292 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
4293 local $/ = "\0";
4294 my $state = 'meta';
4295 my @mods;
4296 while (<$diff_fh>) {
4297 chomp $_; # this gets rid of the trailing "\0"
4298 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
4299 ($::sha1)\s($::sha1)\s
4300 ([MTCRAD])\d*$/xo) {
4301 push @mods, { mode_a => $1, mode_b => $2,
4302 sha1_a => $3, sha1_b => $4,
4303 chg => $5 };
4304 if ($5 =~ /^(?:C|R)$/) {
4305 $state = 'file_a';
4306 } else {
4307 $state = 'file_b';
4308 }
4309 } elsif ($state eq 'file_a') {
4310 my $x = $mods[$#mods] or croak "Empty array\n";
4311 if ($x->{chg} !~ /^(?:C|R)$/) {
4312 croak "Error parsing $_, $x->{chg}\n";
4313 }
4314 $x->{file_a} = $_;
4315 $state = 'file_b';
4316 } elsif ($state eq 'file_b') {
4317 my $x = $mods[$#mods] or croak "Empty array\n";
4318 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
4319 croak "Error parsing $_, $x->{chg}\n";
4320 }
4321 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
4322 croak "Error parsing $_, $x->{chg}\n";
4323 }
4324 $x->{file_b} = $_;
4325 $state = 'meta';
4326 } else {
4327 croak "Error parsing $_\n";
4328 }
4329 }
4330 command_close_pipe($diff_fh, $ctx);
4331 \@mods;
4332 }
4333
4334 sub check_diff_paths {
4335 my ($ra, $pfx, $rev, $mods) = @_;
4336 my %types;
4337 $pfx .= '/' if length $pfx;
4338
4339 sub type_diff_paths {
4340 my ($ra, $types, $path, $rev) = @_;
4341 my @p = split m#/+#, $path;
4342 my $c = shift @p;
4343 unless (defined $types->{$c}) {
4344 $types->{$c} = $ra->check_path($c, $rev);
4345 }
4346 while (@p) {
4347 $c .= '/' . shift @p;
4348 next if defined $types->{$c};
4349 $types->{$c} = $ra->check_path($c, $rev);
4350 }
4351 }
4352
4353 foreach my $m (@$mods) {
4354 foreach my $f (qw/file_a file_b/) {
4355 next unless defined $m->{$f};
4356 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
4357 if (length $pfx.$dir && ! defined $types{$dir}) {
4358 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
4359 }
4360 }
4361 }
4362 \%types;
4363 }
4364
4365 sub split_path {
4366 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
4367 }
4368
4369 sub repo_path {
4370 my ($self, $path) = @_;
4371 $self->{path_prefix}.(defined $path ? $path : '');
4372 }
4373
4374 sub url_path {
4375 my ($self, $path) = @_;
4376 if ($self->{url} =~ m#^https?://#) {
4377 $path =~ s!([^~a-zA-Z0-9_./-])!uc sprintf("%%%02x",ord($1))!eg;
4378 }
4379 $self->{url} . '/' . $self->repo_path($path);
4380 }
4381
4382 sub rmdirs {
4383 my ($self) = @_;
4384 my $rm = $self->{rm};
4385 delete $rm->{''}; # we never delete the url we're tracking
4386 return unless %$rm;
4387
4388 foreach (keys %$rm) {
4389 my @d = split m#/#, $_;
4390 my $c = shift @d;
4391 $rm->{$c} = 1;
4392 while (@d) {
4393 $c .= '/' . shift @d;
4394 $rm->{$c} = 1;
4395 }
4396 }
4397 delete $rm->{$self->{svn_path}};
4398 delete $rm->{''}; # we never delete the url we're tracking
4399 return unless %$rm;
4400
4401 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
4402 $self->{tree_b});
4403 local $/ = "\0";
4404 while (<$fh>) {
4405 chomp;
4406 my @dn = split m#/#, $_;
4407 while (pop @dn) {
4408 delete $rm->{join '/', @dn};
4409 }
4410 unless (%$rm) {
4411 close $fh;
4412 return;
4413 }
4414 }
4415 command_close_pipe($fh, $ctx);
4416
4417 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
4418 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
4419 $self->close_directory($bat->{$d}, $p);
4420 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
4421 print "\tD+\t$d/\n" unless $::_q;
4422 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
4423 delete $bat->{$d};
4424 }
4425 }
4426
4427 sub open_or_add_dir {
4428 my ($self, $full_path, $baton) = @_;
4429 my $t = $self->{types}->{$full_path};
4430 if (!defined $t) {
4431 die "$full_path not known in r$self->{r} or we have a bug!\n";
4432 }
4433 {
4434 no warnings 'once';
4435 # SVN::Node::none and SVN::Node::file are used only once,
4436 # so we're shutting up Perl's warnings about them.
4437 if ($t == $SVN::Node::none) {
4438 return $self->add_directory($full_path, $baton,
4439 undef, -1, $self->{pool});
4440 } elsif ($t == $SVN::Node::dir) {
4441 return $self->open_directory($full_path, $baton,
4442 $self->{r}, $self->{pool});
4443 } # no warnings 'once'
4444 print STDERR "$full_path already exists in repository at ",
4445 "r$self->{r} and it is not a directory (",
4446 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
4447 } # no warnings 'once'
4448 exit 1;
4449 }
4450
4451 sub ensure_path {
4452 my ($self, $path) = @_;
4453 my $bat = $self->{bat};
4454 my $repo_path = $self->repo_path($path);
4455 return $bat->{''} unless (length $repo_path);
4456 my @p = split m#/+#, $repo_path;
4457 my $c = shift @p;
4458 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
4459 while (@p) {
4460 my $c0 = $c;
4461 $c .= '/' . shift @p;
4462 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
4463 }
4464 return $bat->{$c};
4465 }
4466
4467 # Subroutine to convert a globbing pattern to a regular expression.
4468 # From perl cookbook.
4469 sub glob2pat {
4470 my $globstr = shift;
4471 my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
4472 $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
4473 return '^' . $globstr . '$';
4474 }
4475
4476 sub check_autoprop {
4477 my ($self, $pattern, $properties, $file, $fbat) = @_;
4478 # Convert the globbing pattern to a regular expression.
4479 my $regex = glob2pat($pattern);
4480 # Check if the pattern matches the file name.
4481 if($file =~ m/($regex)/) {
4482 # Parse the list of properties to set.
4483 my @props = split(/;/, $properties);
4484 foreach my $prop (@props) {
4485 # Parse 'name=value' syntax and set the property.
4486 if ($prop =~ /([^=]+)=(.*)/) {
4487 my ($n,$v) = ($1,$2);
4488 for ($n, $v) {
4489 s/^\s+//; s/\s+$//;
4490 }
4491 $self->change_file_prop($fbat, $n, $v);
4492 }
4493 }
4494 }
4495 }
4496
4497 sub apply_autoprops {
4498 my ($self, $file, $fbat) = @_;
4499 my $conf_t = ${$self->{config}}{'config'};
4500 no warnings 'once';
4501 # Check [miscellany]/enable-auto-props in svn configuration.
4502 if (SVN::_Core::svn_config_get_bool(
4503 $conf_t,
4504 $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
4505 $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
4506 0)) {
4507 # Auto-props are enabled. Enumerate them to look for matches.
4508 my $callback = sub {
4509 $self->check_autoprop($_[0], $_[1], $file, $fbat);
4510 };
4511 SVN::_Core::svn_config_enumerate(
4512 $conf_t,
4513 $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
4514 $callback);
4515 }
4516 }
4517
4518 sub A {
4519 my ($self, $m) = @_;
4520 my ($dir, $file) = split_path($m->{file_b});
4521 my $pbat = $self->ensure_path($dir);
4522 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4523 undef, -1);
4524 print "\tA\t$m->{file_b}\n" unless $::_q;
4525 $self->apply_autoprops($file, $fbat);
4526 $self->chg_file($fbat, $m);
4527 $self->close_file($fbat,undef,$self->{pool});
4528 }
4529
4530 sub C {
4531 my ($self, $m) = @_;
4532 my ($dir, $file) = split_path($m->{file_b});
4533 my $pbat = $self->ensure_path($dir);
4534 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4535 $self->url_path($m->{file_a}), $self->{r});
4536 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
4537 $self->chg_file($fbat, $m);
4538 $self->close_file($fbat,undef,$self->{pool});
4539 }
4540
4541 sub delete_entry {
4542 my ($self, $path, $pbat) = @_;
4543 my $rpath = $self->repo_path($path);
4544 my ($dir, $file) = split_path($rpath);
4545 $self->{rm}->{$dir} = 1;
4546 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
4547 }
4548
4549 sub R {
4550 my ($self, $m) = @_;
4551 my ($dir, $file) = split_path($m->{file_b});
4552 my $pbat = $self->ensure_path($dir);
4553 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4554 $self->url_path($m->{file_a}), $self->{r});
4555 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
4556 $self->apply_autoprops($file, $fbat);
4557 $self->chg_file($fbat, $m);
4558 $self->close_file($fbat,undef,$self->{pool});
4559
4560 ($dir, $file) = split_path($m->{file_a});
4561 $pbat = $self->ensure_path($dir);
4562 $self->delete_entry($m->{file_a}, $pbat);
4563 }
4564
4565 sub M {
4566 my ($self, $m) = @_;
4567 my ($dir, $file) = split_path($m->{file_b});
4568 my $pbat = $self->ensure_path($dir);
4569 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
4570 $pbat,$self->{r},$self->{pool});
4571 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
4572 $self->chg_file($fbat, $m);
4573 $self->close_file($fbat,undef,$self->{pool});
4574 }
4575
4576 sub T { shift->M(@_) }
4577
4578 sub change_file_prop {
4579 my ($self, $fbat, $pname, $pval) = @_;
4580 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
4581 }
4582
4583 sub _chg_file_get_blob ($$$$) {
4584 my ($self, $fbat, $m, $which) = @_;
4585 my $fh = $::_repository->temp_acquire("git_blob_$which");
4586 if ($m->{"mode_$which"} =~ /^120/) {
4587 print $fh 'link ' or croak $!;
4588 $self->change_file_prop($fbat,'svn:special','*');
4589 } elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) {
4590 $self->change_file_prop($fbat,'svn:special',undef);
4591 }
4592 my $blob = $m->{"sha1_$which"};
4593 return ($fh,) if ($blob =~ /^0{40}$/);
4594 my $size = $::_repository->cat_blob($blob, $fh);
4595 croak "Failed to read object $blob" if ($size < 0);
4596 $fh->flush == 0 or croak $!;
4597 seek $fh, 0, 0 or croak $!;
4598
4599 my $exp = ::md5sum($fh);
4600 seek $fh, 0, 0 or croak $!;
4601 return ($fh, $exp);
4602 }
4603
4604 sub chg_file {
4605 my ($self, $fbat, $m) = @_;
4606 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
4607 $self->change_file_prop($fbat,'svn:executable','*');
4608 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
4609 $self->change_file_prop($fbat,'svn:executable',undef);
4610 }
4611 my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a';
4612 my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b';
4613 my $pool = SVN::Pool->new;
4614 my $atd = $self->apply_textdelta($fbat, $exp_a, $pool);
4615 if (-s $fh_a) {
4616 my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool);
4617 my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool);
4618 if (defined $res) {
4619 die "Unexpected result from send_txstream: $res\n",
4620 "(SVN::Core::VERSION: $SVN::Core::VERSION)\n";
4621 }
4622 } else {
4623 my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool);
4624 die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n"
4625 if ($got ne $exp_b);
4626 }
4627 Git::temp_release($fh_b, 1);
4628 Git::temp_release($fh_a, 1);
4629 $pool->clear;
4630 }
4631
4632 sub D {
4633 my ($self, $m) = @_;
4634 my ($dir, $file) = split_path($m->{file_b});
4635 my $pbat = $self->ensure_path($dir);
4636 print "\tD\t$m->{file_b}\n" unless $::_q;
4637 $self->delete_entry($m->{file_b}, $pbat);
4638 }
4639
4640 sub close_edit {
4641 my ($self) = @_;
4642 my ($p,$bat) = ($self->{pool}, $self->{bat});
4643 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
4644 next if $_ eq '';
4645 $self->close_directory($bat->{$_}, $p);
4646 }
4647 $self->close_directory($bat->{''}, $p);
4648 $self->SUPER::close_edit($p);
4649 $p->clear;
4650 }
4651
4652 sub abort_edit {
4653 my ($self) = @_;
4654 $self->SUPER::abort_edit($self->{pool});
4655 }
4656
4657 sub DESTROY {
4658 my $self = shift;
4659 $self->SUPER::DESTROY(@_);
4660 $self->{pool}->clear;
4661 }
4662
4663 # this drives the editor
4664 sub apply_diff {
4665 my ($self) = @_;
4666 my $mods = $self->{mods};
4667 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
4668 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
4669 my $f = $m->{chg};
4670 if (defined $o{$f}) {
4671 $self->$f($m);
4672 } else {
4673 fatal("Invalid change type: $f");
4674 }
4675 }
4676 $self->rmdirs if $_rmdir;
4677 if (@$mods == 0) {
4678 $self->abort_edit;
4679 } else {
4680 $self->close_edit;
4681 }
4682 return scalar @$mods;
4683 }
4684
4685 package Git::SVN::Ra;
4686 use vars qw/@ISA $config_dir $_log_window_size/;
4687 use strict;
4688 use warnings;
4689 my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
4690
4691 BEGIN {
4692 # enforce temporary pool usage for some simple functions
4693 no strict 'refs';
4694 for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root
4695 get_file/) {
4696 my $SUPER = "SUPER::$f";
4697 *$f = sub {
4698 my $self = shift;
4699 my $pool = SVN::Pool->new;
4700 my @ret = $self->$SUPER(@_,$pool);
4701 $pool->clear;
4702 wantarray ? @ret : $ret[0];
4703 };
4704 }
4705 }
4706
4707 sub _auth_providers () {
4708 [
4709 SVN::Client::get_simple_provider(),
4710 SVN::Client::get_ssl_server_trust_file_provider(),
4711 SVN::Client::get_simple_prompt_provider(
4712 \&Git::SVN::Prompt::simple, 2),
4713 SVN::Client::get_ssl_client_cert_file_provider(),
4714 SVN::Client::get_ssl_client_cert_prompt_provider(
4715 \&Git::SVN::Prompt::ssl_client_cert, 2),
4716 SVN::Client::get_ssl_client_cert_pw_file_provider(),
4717 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
4718 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
4719 SVN::Client::get_username_provider(),
4720 SVN::Client::get_ssl_server_trust_prompt_provider(
4721 \&Git::SVN::Prompt::ssl_server_trust),
4722 SVN::Client::get_username_prompt_provider(
4723 \&Git::SVN::Prompt::username, 2)
4724 ]
4725 }
4726
4727 sub escape_uri_only {
4728 my ($uri) = @_;
4729 my @tmp;
4730 foreach (split m{/}, $uri) {
4731 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
4732 push @tmp, $_;
4733 }
4734 join('/', @tmp);
4735 }
4736
4737 sub escape_url {
4738 my ($url) = @_;
4739 if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
4740 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
4741 $url = "$scheme://$domain$uri";
4742 }
4743 $url;
4744 }
4745
4746 sub new {
4747 my ($class, $url) = @_;
4748 $url =~ s!/+$!!;
4749 return $RA if ($RA && $RA->{url} eq $url);
4750
4751 SVN::_Core::svn_config_ensure($config_dir, undef);
4752 my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
4753 my $config = SVN::Core::config_get_config($config_dir);
4754 $RA = undef;
4755 my $dont_store_passwords = 1;
4756 my $conf_t = ${$config}{'config'};
4757 {
4758 no warnings 'once';
4759 # The usage of $SVN::_Core::SVN_CONFIG_* variables
4760 # produces warnings that variables are used only once.
4761 # I had not found the better way to shut them up, so
4762 # the warnings of type 'once' are disabled in this block.
4763 if (SVN::_Core::svn_config_get_bool($conf_t,
4764 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4765 $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
4766 1) == 0) {
4767 SVN::_Core::svn_auth_set_parameter($baton,
4768 $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
4769 bless (\$dont_store_passwords, "_p_void"));
4770 }
4771 if (SVN::_Core::svn_config_get_bool($conf_t,
4772 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4773 $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
4774 1) == 0) {
4775 $Git::SVN::Prompt::_no_auth_cache = 1;
4776 }
4777 } # no warnings 'once'
4778 my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
4779 config => $config,
4780 pool => SVN::Pool->new,
4781 auth_provider_callbacks => $callbacks);
4782 $self->{url} = $url;
4783 $self->{svn_path} = $url;
4784 $self->{repos_root} = $self->get_repos_root;
4785 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
4786 $self->{cache} = { check_path => { r => 0, data => {} },
4787 get_dir => { r => 0, data => {} } };
4788 $RA = bless $self, $class;
4789 }
4790
4791 sub check_path {
4792 my ($self, $path, $r) = @_;
4793 my $cache = $self->{cache}->{check_path};
4794 if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
4795 return $cache->{data}->{$path};
4796 }
4797 my $pool = SVN::Pool->new;
4798 my $t = $self->SUPER::check_path($path, $r, $pool);
4799 $pool->clear;
4800 if ($r != $cache->{r}) {
4801 %{$cache->{data}} = ();
4802 $cache->{r} = $r;
4803 }
4804 $cache->{data}->{$path} = $t;
4805 }
4806
4807 sub get_dir {
4808 my ($self, $dir, $r) = @_;
4809 my $cache = $self->{cache}->{get_dir};
4810 if ($r == $cache->{r}) {
4811 if (my $x = $cache->{data}->{$dir}) {
4812 return wantarray ? @$x : $x->[0];
4813 }
4814 }
4815 my $pool = SVN::Pool->new;
4816 my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
4817 my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
4818 $pool->clear;
4819 if ($r != $cache->{r}) {
4820 %{$cache->{data}} = ();
4821 $cache->{r} = $r;
4822 }
4823 $cache->{data}->{$dir} = [ \%dirents, $r, $props ];
4824 wantarray ? (\%dirents, $r, $props) : \%dirents;
4825 }
4826
4827 sub DESTROY {
4828 # do not call the real DESTROY since we store ourselves in $RA
4829 }
4830
4831 # get_log(paths, start, end, limit,
4832 # discover_changed_paths, strict_node_history, receiver)
4833 sub get_log {
4834 my ($self, @args) = @_;
4835 my $pool = SVN::Pool->new;
4836
4837 # svn_log_changed_path_t objects passed to get_log are likely to be
4838 # overwritten even if only the refs are copied to an external variable,
4839 # so we should dup the structures in their entirety. Using an
4840 # externally passed pool (instead of our temporary and quickly cleared
4841 # pool in Git::SVN::Ra) does not help matters at all...
4842 my $receiver = pop @args;
4843 my $prefix = "/".$self->{svn_path};
4844 $prefix =~ s#/+($)##;
4845 my $prefix_regex = qr#^\Q$prefix\E#;
4846 push(@args, sub {
4847 my ($paths) = $_[0];
4848 return &$receiver(@_) unless $paths;
4849 $_[0] = ();
4850 foreach my $p (keys %$paths) {
4851 my $i = $paths->{$p};
4852 # Make path relative to our url, not repos_root
4853 $p =~ s/$prefix_regex//;
4854 my %s = map { $_ => $i->$_; }
4855 qw/copyfrom_path copyfrom_rev action/;
4856 if ($s{'copyfrom_path'}) {
4857 $s{'copyfrom_path'} =~ s/$prefix_regex//;
4858 }
4859 $_[0]{$p} = \%s;
4860 }
4861 &$receiver(@_);
4862 });
4863
4864
4865 # the limit parameter was not supported in SVN 1.1.x, so we
4866 # drop it. Therefore, the receiver callback passed to it
4867 # is made aware of this limitation by being wrapped if
4868 # the limit passed to is being wrapped.
4869 if ($SVN::Core::VERSION le '1.2.0') {
4870 my $limit = splice(@args, 3, 1);
4871 if ($limit > 0) {
4872 my $receiver = pop @args;
4873 push(@args, sub { &$receiver(@_) if (--$limit >= 0) });
4874 }
4875 }
4876 my $ret = $self->SUPER::get_log(@args, $pool);
4877 $pool->clear;
4878 $ret;
4879 }
4880
4881 sub trees_match {
4882 my ($self, $url1, $rev1, $url2, $rev2) = @_;
4883 my $ctx = SVN::Client->new(auth => _auth_providers);
4884 my $out = IO::File->new_tmpfile;
4885
4886 # older SVN (1.1.x) doesn't take $pool as the last parameter for
4887 # $ctx->diff(), so we'll create a default one
4888 my $pool = SVN::Pool->new_default_sub;
4889
4890 $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
4891 $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
4892 $out->flush;
4893 my $ret = (($out->stat)[7] == 0);
4894 close $out or croak $!;
4895
4896 $ret;
4897 }
4898
4899 sub get_commit_editor {
4900 my ($self, $log, $cb, $pool) = @_;
4901 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
4902 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
4903 }
4904
4905 sub gs_do_update {
4906 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
4907 my $new = ($rev_a == $rev_b);
4908 my $path = $gs->{path};
4909
4910 if ($new && -e $gs->{index}) {
4911 unlink $gs->{index} or die
4912 "Couldn't unlink index: $gs->{index}: $!\n";
4913 }
4914 my $pool = SVN::Pool->new;
4915 $editor->set_path_strip($path);
4916 my (@pc) = split m#/#, $path;
4917 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
4918 1, $editor, $pool);
4919 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4920
4921 # Since we can't rely on svn_ra_reparent being available, we'll
4922 # just have to do some magic with set_path to make it so
4923 # we only want a partial path.
4924 my $sp = '';
4925 my $final = join('/', @pc);
4926 while (@pc) {
4927 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
4928 $sp .= '/' if length $sp;
4929 $sp .= shift @pc;
4930 }
4931 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
4932
4933 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
4934
4935 $reporter->finish_report($pool);
4936 $pool->clear;
4937 $editor->{git_commit_ok};
4938 }
4939
4940 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
4941 # svn_ra_reparent didn't work before 1.4)
4942 sub gs_do_switch {
4943 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
4944 my $path = $gs->{path};
4945 my $pool = SVN::Pool->new;
4946
4947 my $full_url = $self->{url};
4948 my $old_url = $full_url;
4949 $full_url .= '/' . $path if length $path;
4950 my ($ra, $reparented);
4951
4952 if ($old_url =~ m#^svn(\+ssh)?://# ||
4953 ($full_url =~ m#^https?://# &&
4954 escape_url($full_url) ne $full_url)) {
4955 $_[0] = undef;
4956 $self = undef;
4957 $RA = undef;
4958 $ra = Git::SVN::Ra->new($full_url);
4959 $ra_invalid = 1;
4960 } elsif ($old_url ne $full_url) {
4961 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool);
4962 $self->{url} = $full_url;
4963 $reparented = 1;
4964 }
4965
4966 $ra ||= $self;
4967 $url_b = escape_url($url_b);
4968 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
4969 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4970 $reporter->set_path('', $rev_a, 0, @lock, $pool);
4971 $reporter->finish_report($pool);
4972
4973 if ($reparented) {
4974 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
4975 $self->{url} = $old_url;
4976 }
4977
4978 $pool->clear;
4979 $editor->{git_commit_ok};
4980 }
4981
4982 sub longest_common_path {
4983 my ($gsv, $globs) = @_;
4984 my %common;
4985 my $common_max = scalar @$gsv;
4986
4987 foreach my $gs (@$gsv) {
4988 my @tmp = split m#/#, $gs->{path};
4989 my $p = '';
4990 foreach (@tmp) {
4991 $p .= length($p) ? "/$_" : $_;
4992 $common{$p} ||= 0;
4993 $common{$p}++;
4994 }
4995 }
4996 $globs ||= [];
4997 $common_max += scalar @$globs;
4998 foreach my $glob (@$globs) {
4999 my @tmp = split m#/#, $glob->{path}->{left};
5000 my $p = '';
5001 foreach (@tmp) {
5002 $p .= length($p) ? "/$_" : $_;
5003 $common{$p} ||= 0;
5004 $common{$p}++;
5005 }
5006 }
5007
5008 my $longest_path = '';
5009 foreach (sort {length $b <=> length $a} keys %common) {
5010 if ($common{$_} == $common_max) {
5011 $longest_path = $_;
5012 last;
5013 }
5014 }
5015 $longest_path;
5016 }
5017
5018 sub gs_fetch_loop_common {
5019 my ($self, $base, $head, $gsv, $globs) = @_;
5020 return if ($base > $head);
5021 my $inc = $_log_window_size;
5022 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
5023 my $longest_path = longest_common_path($gsv, $globs);
5024 my $ra_url = $self->{url};
5025 my $find_trailing_edge;
5026 while (1) {
5027 my %revs;
5028 my $err;
5029 my $err_handler = $SVN::Error::handler;
5030 $SVN::Error::handler = sub {
5031 ($err) = @_;
5032 skip_unknown_revs($err);
5033 };
5034 sub _cb {
5035 my ($paths, $r, $author, $date, $log) = @_;
5036 [ $paths,
5037 { author => $author, date => $date, log => $log } ];
5038 }
5039 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
5040 sub { $revs{$_[1]} = _cb(@_) });
5041 if ($err) {
5042 print "Checked through r$max\r";
5043 } else {
5044 $find_trailing_edge = 1;
5045 }
5046 if ($err and $find_trailing_edge) {
5047 print STDERR "Path '$longest_path' ",
5048 "was probably deleted:\n",
5049 $err->expanded_message,
5050 "\nWill attempt to follow ",
5051 "revisions r$min .. r$max ",
5052 "committed before the deletion\n";
5053 my $hi = $max;
5054 while (--$hi >= $min) {
5055 my $ok;
5056 $self->get_log([$longest_path], $min, $hi,
5057 0, 1, 1, sub {
5058 $ok = $_[1];
5059 $revs{$_[1]} = _cb(@_) });
5060 if ($ok) {
5061 print STDERR "r$min .. r$ok OK\n";
5062 last;
5063 }
5064 }
5065 $find_trailing_edge = 0;
5066 }
5067 $SVN::Error::handler = $err_handler;
5068
5069 my %exists = map { $_->{path} => $_ } @$gsv;
5070 foreach my $r (sort {$a <=> $b} keys %revs) {
5071 my ($paths, $logged) = @{$revs{$r}};
5072
5073 foreach my $gs ($self->match_globs(\%exists, $paths,
5074 $globs, $r)) {
5075 if ($gs->rev_map_max >= $r) {
5076 next;
5077 }
5078 next unless $gs->match_paths($paths, $r);
5079 $gs->{logged_rev_props} = $logged;
5080 if (my $last_commit = $gs->last_commit) {
5081 $gs->assert_index_clean($last_commit);
5082 }
5083 my $log_entry = $gs->do_fetch($paths, $r);
5084 if ($log_entry) {
5085 $gs->do_git_commit($log_entry);
5086 }
5087 $INDEX_FILES{$gs->{index}} = 1;
5088 }
5089 foreach my $g (@$globs) {
5090 my $k = "svn-remote.$g->{remote}." .
5091 "$g->{t}-maxRev";
5092 Git::SVN::tmp_config($k, $r);
5093 }
5094 if ($ra_invalid) {
5095 $_[0] = undef;
5096 $self = undef;
5097 $RA = undef;
5098 $self = Git::SVN::Ra->new($ra_url);
5099 $ra_invalid = undef;
5100 }
5101 }
5102 # pre-fill the .rev_db since it'll eventually get filled in
5103 # with '0' x40 if something new gets committed
5104 foreach my $gs (@$gsv) {
5105 next if $gs->rev_map_max >= $max;
5106 next if defined $gs->rev_map_get($max);
5107 $gs->rev_map_set($max, 0 x40);
5108 }
5109 foreach my $g (@$globs) {
5110 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
5111 Git::SVN::tmp_config($k, $max);
5112 }
5113 last if $max >= $head;
5114 $min = $max + 1;
5115 $max += $inc;
5116 $max = $head if ($max > $head);
5117 }
5118 Git::SVN::gc();
5119 }
5120
5121 sub get_dir_globbed {
5122 my ($self, $left, $depth, $r) = @_;
5123
5124 my @x = eval { $self->get_dir($left, $r) };
5125 return unless scalar @x == 3;
5126 my $dirents = $x[0];
5127 my @finalents;
5128 foreach my $de (keys %$dirents) {
5129 next if $dirents->{$de}->{kind} != $SVN::Node::dir;
5130 if ($depth > 1) {
5131 my @args = ("$left/$de", $depth - 1, $r);
5132 foreach my $dir ($self->get_dir_globbed(@args)) {
5133 push @finalents, "$de/$dir";
5134 }
5135 } else {
5136 push @finalents, $de;
5137 }
5138 }
5139 @finalents;
5140 }
5141
5142 sub match_globs {
5143 my ($self, $exists, $paths, $globs, $r) = @_;
5144
5145 sub get_dir_check {
5146 my ($self, $exists, $g, $r) = @_;
5147
5148 my @dirs = $self->get_dir_globbed($g->{path}->{left},
5149 $g->{path}->{depth},
5150 $r);
5151
5152 foreach my $de (@dirs) {
5153 my $p = $g->{path}->full_path($de);
5154 next if $exists->{$p};
5155 next if (length $g->{path}->{right} &&
5156 ($self->check_path($p, $r) !=
5157 $SVN::Node::dir));
5158 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
5159 $g->{ref}->full_path($de), 1);
5160 }
5161 }
5162 foreach my $g (@$globs) {
5163 if (my $path = $paths->{"/$g->{path}->{left}"}) {
5164 if ($path->{action} =~ /^[AR]$/) {
5165 get_dir_check($self, $exists, $g, $r);
5166 }
5167 }
5168 foreach (keys %$paths) {
5169 if (/$g->{path}->{left_regex}/ &&
5170 !/$g->{path}->{regex}/) {
5171 next if $paths->{$_}->{action} !~ /^[AR]$/;
5172 get_dir_check($self, $exists, $g, $r);
5173 }
5174 next unless /$g->{path}->{regex}/;
5175 my $p = $1;
5176 my $pathname = $g->{path}->full_path($p);
5177 next if $exists->{$pathname};
5178 next if ($self->check_path($pathname, $r) !=
5179 $SVN::Node::dir);
5180 $exists->{$pathname} = Git::SVN->init(
5181 $self->{url}, $pathname, undef,
5182 $g->{ref}->full_path($p), 1);
5183 }
5184 my $c = '';
5185 foreach (split m#/#, $g->{path}->{left}) {
5186 $c .= "/$_";
5187 next unless ($paths->{$c} &&
5188 ($paths->{$c}->{action} =~ /^[AR]$/));
5189 get_dir_check($self, $exists, $g, $r);
5190 }
5191 }
5192 values %$exists;
5193 }
5194
5195 sub minimize_url {
5196 my ($self) = @_;
5197 return $self->{url} if ($self->{url} eq $self->{repos_root});
5198 my $url = $self->{repos_root};
5199 my @components = split(m!/!, $self->{svn_path});
5200 my $c = '';
5201 do {
5202 $url .= "/$c" if length $c;
5203 eval {
5204 my $ra = (ref $self)->new($url);
5205 my $latest = $ra->get_latest_revnum;
5206 $ra->get_log("", $latest, 0, 1, 0, 1, sub {});
5207 };
5208 } while ($@ && ($c = shift @components));
5209 $url;
5210 }
5211
5212 sub can_do_switch {
5213 my $self = shift;
5214 unless (defined $can_do_switch) {
5215 my $pool = SVN::Pool->new;
5216 my $rep = eval {
5217 $self->do_switch(1, '', 0, $self->{url},
5218 SVN::Delta::Editor->new, $pool);
5219 };
5220 if ($@) {
5221 $can_do_switch = 0;
5222 } else {
5223 $rep->abort_report($pool);
5224 $can_do_switch = 1;
5225 }
5226 $pool->clear;
5227 }
5228 $can_do_switch;
5229 }
5230
5231 sub skip_unknown_revs {
5232 my ($err) = @_;
5233 my $errno = $err->apr_err();
5234 # Maybe the branch we're tracking didn't
5235 # exist when the repo started, so it's
5236 # not an error if it doesn't, just continue
5237 #
5238 # Wonderfully consistent library, eh?
5239 # 160013 - svn:// and file://
5240 # 175002 - http(s)://
5241 # 175007 - http(s):// (this repo required authorization, too...)
5242 # More codes may be discovered later...
5243 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
5244 my $err_key = $err->expanded_message;
5245 # revision numbers change every time, filter them out
5246 $err_key =~ s/\d+/\0/g;
5247 $err_key = "$errno\0$err_key";
5248 unless ($ignored_err{$err_key}) {
5249 warn "W: Ignoring error from SVN, path probably ",
5250 "does not exist: ($errno): ",
5251 $err->expanded_message,"\n";
5252 warn "W: Do not be alarmed at the above message ",
5253 "git-svn is just searching aggressively for ",
5254 "old history.\n",
5255 "This may take a while on large repositories\n";
5256 $ignored_err{$err_key} = 1;
5257 }
5258 return;
5259 }
5260 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
5261 }
5262
5263 package Git::SVN::Log;
5264 use strict;
5265 use warnings;
5266 use POSIX qw/strftime/;
5267 use Time::Local;
5268 use constant commit_log_separator => ('-' x 72) . "\n";
5269 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
5270 %rusers $show_commit $incremental/;
5271 my $l_fmt;
5272
5273 sub cmt_showable {
5274 my ($c) = @_;
5275 return 1 if defined $c->{r};
5276
5277 # big commit message got truncated by the 16k pretty buffer in rev-list
5278 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
5279 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
5280 @{$c->{l}} = ();
5281 my @log = command(qw/cat-file commit/, $c->{c});
5282
5283 # shift off the headers
5284 shift @log while ($log[0] ne '');
5285 shift @log;
5286
5287 # TODO: make $c->{l} not have a trailing newline in the future
5288 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
5289
5290 (undef, $c->{r}, undef) = ::extract_metadata(
5291 (grep(/^git-svn-id: /, @log))[-1]);
5292 }
5293 return defined $c->{r};
5294 }
5295
5296 sub log_use_color {
5297 return $color || Git->repository->get_colorbool('color.diff');
5298 }
5299
5300 sub git_svn_log_cmd {
5301 my ($r_min, $r_max, @args) = @_;
5302 my $head = 'HEAD';
5303 my (@files, @log_opts);
5304 foreach my $x (@args) {
5305 if ($x eq '--' || @files) {
5306 push @files, $x;
5307 } else {
5308 if (::verify_ref("$x^0")) {
5309 $head = $x;
5310 } else {
5311 push @log_opts, $x;
5312 }
5313 }
5314 }
5315
5316 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
5317 $gs ||= Git::SVN->_new;
5318 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
5319 $gs->refname);
5320 push @cmd, '-r' unless $non_recursive;
5321 push @cmd, qw/--raw --name-status/ if $verbose;
5322 push @cmd, '--color' if log_use_color();
5323 push @cmd, @log_opts;
5324 if (defined $r_max && $r_max == $r_min) {
5325 push @cmd, '--max-count=1';
5326 if (my $c = $gs->rev_map_get($r_max)) {
5327 push @cmd, $c;
5328 }
5329 } elsif (defined $r_max) {
5330 if ($r_max < $r_min) {
5331 ($r_min, $r_max) = ($r_max, $r_min);
5332 }
5333 my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
5334 my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
5335 # If there are no commits in the range, both $c_max and $c_min
5336 # will be undefined. If there is at least 1 commit in the
5337 # range, both will be defined.
5338 return () if !defined $c_min || !defined $c_max;
5339 if ($c_min eq $c_max) {
5340 push @cmd, '--max-count=1', $c_min;
5341 } else {
5342 push @cmd, '--boundary', "$c_min..$c_max";
5343 }
5344 }
5345 return (@cmd, @files);
5346 }
5347
5348 # adapted from pager.c
5349 sub config_pager {
5350 chomp(my $pager = command_oneline(qw(var GIT_PAGER)));
5351 if ($pager eq 'cat') {
5352 $pager = undef;
5353 }
5354 $ENV{GIT_PAGER_IN_USE} = defined($pager);
5355 }
5356
5357 sub run_pager {
5358 return unless -t *STDOUT && defined $pager;
5359 pipe my ($rfd, $wfd) or return;
5360 defined(my $pid = fork) or ::fatal "Can't fork: $!";
5361 if (!$pid) {
5362 open STDOUT, '>&', $wfd or
5363 ::fatal "Can't redirect to stdout: $!";
5364 return;
5365 }
5366 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
5367 $ENV{LESS} ||= 'FRSX';
5368 exec $pager or ::fatal "Can't run pager: $! ($pager)";
5369 }
5370
5371 sub format_svn_date {
5372 # some systmes don't handle or mishandle %z, so be creative.
5373 my $t = shift || time;
5374 my $gm = timelocal(gmtime($t));
5375 my $sign = qw( + + - )[ $t <=> $gm ];
5376 my $gmoff = sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
5377 return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t));
5378 }
5379
5380 sub parse_git_date {
5381 my ($t, $tz) = @_;
5382 # Date::Parse isn't in the standard Perl distro :(
5383 if ($tz =~ s/^\+//) {
5384 $t += tz_to_s_offset($tz);
5385 } elsif ($tz =~ s/^\-//) {
5386 $t -= tz_to_s_offset($tz);
5387 }
5388 return $t;
5389 }
5390
5391 sub set_local_timezone {
5392 if (defined $TZ) {
5393 $ENV{TZ} = $TZ;
5394 } else {
5395 delete $ENV{TZ};
5396 }
5397 }
5398
5399 sub tz_to_s_offset {
5400 my ($tz) = @_;
5401 $tz =~ s/(\d\d)$//;
5402 return ($1 * 60) + ($tz * 3600);
5403 }
5404
5405 sub get_author_info {
5406 my ($dest, $author, $t, $tz) = @_;
5407 $author =~ s/(?:^\s*|\s*$)//g;
5408 $dest->{a_raw} = $author;
5409 my $au;
5410 if ($::_authors) {
5411 $au = $rusers{$author} || undef;
5412 }
5413 if (!$au) {
5414 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
5415 }
5416 $dest->{t} = $t;
5417 $dest->{tz} = $tz;
5418 $dest->{a} = $au;
5419 $dest->{t_utc} = parse_git_date($t, $tz);
5420 }
5421
5422 sub process_commit {
5423 my ($c, $r_min, $r_max, $defer) = @_;
5424 if (defined $r_min && defined $r_max) {
5425 if ($r_min == $c->{r} && $r_min == $r_max) {
5426 show_commit($c);
5427 return 0;
5428 }
5429 return 1 if $r_min == $r_max;
5430 if ($r_min < $r_max) {
5431 # we need to reverse the print order
5432 return 0 if (defined $limit && --$limit < 0);
5433 push @$defer, $c;
5434 return 1;
5435 }
5436 if ($r_min != $r_max) {
5437 return 1 if ($r_min < $c->{r});
5438 return 1 if ($r_max > $c->{r});
5439 }
5440 }
5441 return 0 if (defined $limit && --$limit < 0);
5442 show_commit($c);
5443 return 1;
5444 }
5445
5446 sub show_commit {
5447 my $c = shift;
5448 if ($oneline) {
5449 my $x = "\n";
5450 if (my $l = $c->{l}) {
5451 while ($l->[0] =~ /^\s*$/) { shift @$l }
5452 $x = $l->[0];
5453 }
5454 $l_fmt ||= 'A' . length($c->{r});
5455 print 'r',pack($l_fmt, $c->{r}),' | ';
5456 print "$c->{c} | " if $show_commit;
5457 print $x;
5458 } else {
5459 show_commit_normal($c);
5460 }
5461 }
5462
5463 sub show_commit_changed_paths {
5464 my ($c) = @_;
5465 return unless $c->{changed};
5466 print "Changed paths:\n", @{$c->{changed}};
5467 }
5468
5469 sub show_commit_normal {
5470 my ($c) = @_;
5471 print commit_log_separator, "r$c->{r} | ";
5472 print "$c->{c} | " if $show_commit;
5473 print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
5474 my $nr_line = 0;
5475
5476 if (my $l = $c->{l}) {
5477 while ($l->[$#$l] eq "\n" && $#$l > 0
5478 && $l->[($#$l - 1)] eq "\n") {
5479 pop @$l;
5480 }
5481 $nr_line = scalar @$l;
5482 if (!$nr_line) {
5483 print "1 line\n\n\n";
5484 } else {
5485 if ($nr_line == 1) {
5486 $nr_line = '1 line';
5487 } else {
5488 $nr_line .= ' lines';
5489 }
5490 print $nr_line, "\n";
5491 show_commit_changed_paths($c);
5492 print "\n";
5493 print $_ foreach @$l;
5494 }
5495 } else {
5496 print "1 line\n";
5497 show_commit_changed_paths($c);
5498 print "\n";
5499
5500 }
5501 foreach my $x (qw/raw stat diff/) {
5502 if ($c->{$x}) {
5503 print "\n";
5504 print $_ foreach @{$c->{$x}}
5505 }
5506 }
5507 }
5508
5509 sub cmd_show_log {
5510 my (@args) = @_;
5511 my ($r_min, $r_max);
5512 my $r_last = -1; # prevent dupes
5513 set_local_timezone();
5514 if (defined $::_revision) {
5515 if ($::_revision =~ /^(\d+):(\d+)$/) {
5516 ($r_min, $r_max) = ($1, $2);
5517 } elsif ($::_revision =~ /^\d+$/) {
5518 $r_min = $r_max = $::_revision;
5519 } else {
5520 ::fatal "-r$::_revision is not supported, use ",
5521 "standard 'git log' arguments instead";
5522 }
5523 }
5524
5525 config_pager();
5526 @args = git_svn_log_cmd($r_min, $r_max, @args);
5527 if (!@args) {
5528 print commit_log_separator unless $incremental || $oneline;
5529 return;
5530 }
5531 my $log = command_output_pipe(@args);
5532 run_pager();
5533 my (@k, $c, $d, $stat);
5534 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
5535 while (<$log>) {
5536 if (/^${esc_color}commit -?($::sha1_short)/o) {
5537 my $cmt = $1;
5538 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
5539 $r_last = $c->{r};
5540 process_commit($c, $r_min, $r_max, \@k) or
5541 goto out;
5542 }
5543 $d = undef;
5544 $c = { c => $cmt };
5545 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
5546 get_author_info($c, $1, $2, $3);
5547 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
5548 # ignore
5549 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
5550 push @{$c->{raw}}, $_;
5551 } elsif (/^${esc_color}[ACRMDT]\t/) {
5552 # we could add $SVN->{svn_path} here, but that requires
5553 # remote access at the moment (repo_path_split)...
5554 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
5555 push @{$c->{changed}}, $_;
5556 } elsif (/^${esc_color}diff /o) {
5557 $d = 1;
5558 push @{$c->{diff}}, $_;
5559 } elsif ($d) {
5560 push @{$c->{diff}}, $_;
5561 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
5562 $esc_color*[\+\-]*$esc_color$/x) {
5563 $stat = 1;
5564 push @{$c->{stat}}, $_;
5565 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
5566 push @{$c->{stat}}, $_;
5567 $stat = undef;
5568 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
5569 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
5570 } elsif (s/^${esc_color} //o) {
5571 push @{$c->{l}}, $_;
5572 }
5573 }
5574 if ($c && defined $c->{r} && $c->{r} != $r_last) {
5575 $r_last = $c->{r};
5576 process_commit($c, $r_min, $r_max, \@k);
5577 }
5578 if (@k) {
5579 ($r_min, $r_max) = ($r_max, $r_min);
5580 process_commit($_, $r_min, $r_max) foreach reverse @k;
5581 }
5582 out:
5583 close $log;
5584 print commit_log_separator unless $incremental || $oneline;
5585 }
5586
5587 sub cmd_blame {
5588 my $path = pop;
5589
5590 config_pager();
5591 run_pager();
5592
5593 my ($fh, $ctx, $rev);
5594
5595 if ($_git_format) {
5596 ($fh, $ctx) = command_output_pipe('blame', @_, $path);
5597 while (my $line = <$fh>) {
5598 if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
5599 # Uncommitted edits show up as a rev ID of
5600 # all zeros, which we can't look up with
5601 # cmt_metadata
5602 if ($1 !~ /^0+$/) {
5603 (undef, $rev, undef) =
5604 ::cmt_metadata($1);
5605 $rev = '0' if (!$rev);
5606 } else {
5607 $rev = '0';
5608 }
5609 $rev = sprintf('%-10s', $rev);
5610 $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
5611 }
5612 print $line;
5613 }
5614 } else {
5615 ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
5616 '--', $path);
5617 my ($sha1);
5618 my %authors;
5619 my @buffer;
5620 my %dsha; #distinct sha keys
5621
5622 while (my $line = <$fh>) {
5623 push @buffer, $line;
5624 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
5625 $dsha{$1} = 1;
5626 }
5627 }
5628
5629 my $s2r = ::cmt_sha2rev_batch([keys %dsha]);
5630
5631 foreach my $line (@buffer) {
5632 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
5633 $rev = $s2r->{$1};
5634 $rev = '0' if (!$rev)
5635 }
5636 elsif ($line =~ /^author (.*)/) {
5637 $authors{$rev} = $1;
5638 $authors{$rev} =~ s/\s/_/g;
5639 }
5640 elsif ($line =~ /^\t(.*)$/) {
5641 printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
5642 }
5643 }
5644 }
5645 command_close_pipe($fh, $ctx);
5646 }
5647
5648 package Git::SVN::Migration;
5649 # these version numbers do NOT correspond to actual version numbers
5650 # of git nor git-svn. They are just relative.
5651 #
5652 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
5653 #
5654 # v1 layout: .git/$id/info/url, refs/remotes/$id
5655 #
5656 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
5657 #
5658 # v3 layout: .git/svn/$id, refs/remotes/$id
5659 # - info/url may remain for backwards compatibility
5660 # - this is what we migrate up to this layout automatically,
5661 # - this will be used by git svn init on single branches
5662 # v3.1 layout (auto migrated):
5663 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
5664 # for backwards compatibility
5665 #
5666 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
5667 # - this is only created for newly multi-init-ed
5668 # repositories. Similar in spirit to the
5669 # --use-separate-remotes option in git-clone (now default)
5670 # - we do not automatically migrate to this (following
5671 # the example set by core git)
5672 #
5673 # v5 layout: .rev_db.$UUID => .rev_map.$UUID
5674 # - newer, more-efficient format that uses 24-bytes per record
5675 # with no filler space.
5676 # - use xxd -c24 < .rev_map.$UUID to view and debug
5677 # - This is a one-way migration, repositories updated to the
5678 # new format will not be able to use old git-svn without
5679 # rebuilding the .rev_db. Rebuilding the rev_db is not
5680 # possible if noMetadata or useSvmProps are set; but should
5681 # be no problem for users that use the (sensible) defaults.
5682 use strict;
5683 use warnings;
5684 use Carp qw/croak/;
5685 use File::Path qw/mkpath/;
5686 use File::Basename qw/dirname basename/;
5687 use vars qw/$_minimize/;
5688
5689 sub migrate_from_v0 {
5690 my $git_dir = $ENV{GIT_DIR};
5691 return undef unless -d $git_dir;
5692 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5693 my $migrated = 0;
5694 while (<$fh>) {
5695 chomp;
5696 my ($id, $orig_ref) = ($_, $_);
5697 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
5698 next unless -f "$git_dir/$id/info/url";
5699 my $new_ref = "refs/remotes/$id";
5700 if (::verify_ref("$new_ref^0")) {
5701 print STDERR "W: $orig_ref is probably an old ",
5702 "branch used by an ancient version of ",
5703 "git-svn.\n",
5704 "However, $new_ref also exists.\n",
5705 "We will not be able ",
5706 "to use this branch until this ",
5707 "ambiguity is resolved.\n";
5708 next;
5709 }
5710 print STDERR "Migrating from v0 layout...\n" if !$migrated;
5711 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
5712 command_noisy('update-ref', $new_ref, $orig_ref);
5713 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
5714 $migrated++;
5715 }
5716 command_close_pipe($fh, $ctx);
5717 print STDERR "Done migrating from v0 layout...\n" if $migrated;
5718 $migrated;
5719 }
5720
5721 sub migrate_from_v1 {
5722 my $git_dir = $ENV{GIT_DIR};
5723 my $migrated = 0;
5724 return $migrated unless -d $git_dir;
5725 my $svn_dir = "$git_dir/svn";
5726
5727 # just in case somebody used 'svn' as their $id at some point...
5728 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
5729
5730 print STDERR "Migrating from a git-svn v1 layout...\n";
5731 mkpath([$svn_dir]);
5732 print STDERR "Data from a previous version of git-svn exists, but\n\t",
5733 "$svn_dir\n\t(required for this version ",
5734 "($::VERSION) of git-svn) does not exist.\n";
5735 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5736 while (<$fh>) {
5737 my $x = $_;
5738 next unless $x =~ s#^refs/remotes/##;
5739 chomp $x;
5740 next unless -f "$git_dir/$x/info/url";
5741 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
5742 next unless $u;
5743 my $dn = dirname("$git_dir/svn/$x");
5744 mkpath([$dn]) unless -d $dn;
5745 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
5746 mkpath(["$git_dir/svn/svn"]);
5747 print STDERR " - $git_dir/$x/info => ",
5748 "$git_dir/svn/$x/info\n";
5749 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
5750 croak "$!: $x";
5751 # don't worry too much about these, they probably
5752 # don't exist with repos this old (save for index,
5753 # and we can easily regenerate that)
5754 foreach my $f (qw/unhandled.log index .rev_db/) {
5755 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
5756 }
5757 } else {
5758 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
5759 rename "$git_dir/$x", "$git_dir/svn/$x" or
5760 croak "$!: $x";
5761 }
5762 $migrated++;
5763 }
5764 command_close_pipe($fh, $ctx);
5765 print STDERR "Done migrating from a git-svn v1 layout\n";
5766 $migrated;
5767 }
5768
5769 sub read_old_urls {
5770 my ($l_map, $pfx, $path) = @_;
5771 my @dir;
5772 foreach (<$path/*>) {
5773 if (-r "$_/info/url") {
5774 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
5775 my $ref_id = $pfx . basename $_;
5776 my $url = ::file_to_s("$_/info/url");
5777 $l_map->{$ref_id} = $url;
5778 } elsif (-d $_) {
5779 push @dir, $_;
5780 }
5781 }
5782 foreach (@dir) {
5783 my $x = $_;
5784 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
5785 read_old_urls($l_map, $x, $_);
5786 }
5787 }
5788
5789 sub migrate_from_v2 {
5790 my @cfg = command(qw/config -l/);
5791 return if grep /^svn-remote\..+\.url=/, @cfg;
5792 my %l_map;
5793 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
5794 my $migrated = 0;
5795
5796 foreach my $ref_id (sort keys %l_map) {
5797 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
5798 if ($@) {
5799 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
5800 }
5801 $migrated++;
5802 }
5803 $migrated;
5804 }
5805
5806 sub minimize_connections {
5807 my $r = Git::SVN::read_all_remotes();
5808 my $new_urls = {};
5809 my $root_repos = {};
5810 foreach my $repo_id (keys %$r) {
5811 my $url = $r->{$repo_id}->{url} or next;
5812 my $fetch = $r->{$repo_id}->{fetch} or next;
5813 my $ra = Git::SVN::Ra->new($url);
5814
5815 # skip existing cases where we already connect to the root
5816 if (($ra->{url} eq $ra->{repos_root}) ||
5817 ($ra->{repos_root} eq $repo_id)) {
5818 $root_repos->{$ra->{url}} = $repo_id;
5819 next;
5820 }
5821
5822 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
5823 my $root_path = $ra->{url};
5824 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
5825 foreach my $path (keys %$fetch) {
5826 my $ref_id = $fetch->{$path};
5827 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
5828
5829 # make sure we can read when connecting to
5830 # a higher level of a repository
5831 my ($last_rev, undef) = $gs->last_rev_commit;
5832 if (!defined $last_rev) {
5833 $last_rev = eval {
5834 $root_ra->get_latest_revnum;
5835 };
5836 next if $@;
5837 }
5838 my $new = $root_path;
5839 $new .= length $path ? "/$path" : '';
5840 eval {
5841 $root_ra->get_log([$new], $last_rev, $last_rev,
5842 0, 0, 1, sub { });
5843 };
5844 next if $@;
5845 $new_urls->{$ra->{repos_root}}->{$new} =
5846 { ref_id => $ref_id,
5847 old_repo_id => $repo_id,
5848 old_path => $path };
5849 }
5850 }
5851
5852 my @emptied;
5853 foreach my $url (keys %$new_urls) {
5854 # see if we can re-use an existing [svn-remote "repo_id"]
5855 # instead of creating a(n ugly) new section:
5856 my $repo_id = $root_repos->{$url} || $url;
5857
5858 my $fetch = $new_urls->{$url};
5859 foreach my $path (keys %$fetch) {
5860 my $x = $fetch->{$path};
5861 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
5862 my $pfx = "svn-remote.$x->{old_repo_id}";
5863
5864 my $old_fetch = quotemeta("$x->{old_path}:".
5865 "$x->{ref_id}");
5866 command_noisy(qw/config --unset/,
5867 "$pfx.fetch", '^'. $old_fetch . '$');
5868 delete $r->{$x->{old_repo_id}}->
5869 {fetch}->{$x->{old_path}};
5870 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
5871 command_noisy(qw/config --unset/,
5872 "$pfx.url");
5873 push @emptied, $x->{old_repo_id}
5874 }
5875 }
5876 }
5877 if (@emptied) {
5878 my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config";
5879 print STDERR <<EOF;
5880 The following [svn-remote] sections in your config file ($file) are empty
5881 and can be safely removed:
5882 EOF
5883 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
5884 }
5885 }
5886
5887 sub migration_check {
5888 migrate_from_v0();
5889 migrate_from_v1();
5890 migrate_from_v2();
5891 minimize_connections() if $_minimize;
5892 }
5893
5894 package Git::IndexInfo;
5895 use strict;
5896 use warnings;
5897 use Git qw/command_input_pipe command_close_pipe/;
5898
5899 sub new {
5900 my ($class) = @_;
5901 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
5902 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
5903 }
5904
5905 sub remove {
5906 my ($self, $path) = @_;
5907 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
5908 return ++$self->{nr};
5909 }
5910 undef;
5911 }
5912
5913 sub update {
5914 my ($self, $mode, $hash, $path) = @_;
5915 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
5916 return ++$self->{nr};
5917 }
5918 undef;
5919 }
5920
5921 sub DESTROY {
5922 my ($self) = @_;
5923 command_close_pipe($self->{gui}, $self->{ctx});
5924 }
5925
5926 package Git::SVN::GlobSpec;
5927 use strict;
5928 use warnings;
5929
5930 sub new {
5931 my ($class, $glob) = @_;
5932 my $re = $glob;
5933 $re =~ s!/+$!!g; # no need for trailing slashes
5934 $re =~ m!^([^*]*)(\*(?:/\*)*)(.*)$!;
5935 my $temp = $re;
5936 my ($left, $right) = ($1, $3);
5937 $re = $2;
5938 my $depth = $re =~ tr/*/*/;
5939 if ($depth != $temp =~ tr/*/*/) {
5940 die "Only one set of wildcard directories " .
5941 "(e.g. '*' or '*/*/*') is supported: '$glob'\n";
5942 }
5943 if ($depth == 0) {
5944 die "One '*' is needed for glob: '$glob'\n";
5945 }
5946 $re =~ s!\*!\[^/\]*!g;
5947 $re = quotemeta($left) . "($re)" . quotemeta($right);
5948 if (length $left && !($left =~ s!/+$!!g)) {
5949 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
5950 }
5951 if (length $right && !($right =~ s!^/+!!g)) {
5952 die "Missing leading '/' on right side of: '$glob' ($right)\n";
5953 }
5954 my $left_re = qr/^\/\Q$left\E(\/|$)/;
5955 bless { left => $left, right => $right, left_regex => $left_re,
5956 regex => qr/$re/, glob => $glob, depth => $depth }, $class;
5957 }
5958
5959 sub full_path {
5960 my ($self, $path) = @_;
5961 return (length $self->{left} ? "$self->{left}/" : '') .
5962 $path . (length $self->{right} ? "/$self->{right}" : '');
5963 }
5964
5965 __END__
5966
5967 Data structures:
5968
5969
5970 $remotes = { # returned by read_all_remotes()
5971 'svn' => {
5972 # svn-remote.svn.url=https://svn.musicpd.org
5973 url => 'https://svn.musicpd.org',
5974 # svn-remote.svn.fetch=mpd/trunk:trunk
5975 fetch => {
5976 'mpd/trunk' => 'trunk',
5977 },
5978 # svn-remote.svn.tags=mpd/tags/*:tags/*
5979 tags => {
5980 path => {
5981 left => 'mpd/tags',
5982 right => '',
5983 regex => qr!mpd/tags/([^/]+)$!,
5984 glob => 'tags/*',
5985 },
5986 ref => {
5987 left => 'tags',
5988 right => '',
5989 regex => qr!tags/([^/]+)$!,
5990 glob => 'tags/*',
5991 },
5992 }
5993 }
5994 };
5995
5996 $log_entry hashref as returned by libsvn_log_entry()
5997 {
5998 log => 'whitespace-formatted log entry
5999 ', # trailing newline is preserved
6000 revision => '8', # integer
6001 date => '2004-02-24T17:01:44.108345Z', # commit date
6002 author => 'committer name'
6003 };
6004
6005
6006 # this is generated by generate_diff();
6007 @mods = array of diff-index line hashes, each element represents one line
6008 of diff-index output
6009
6010 diff-index line ($m hash)
6011 {
6012 mode_a => first column of diff-index output, no leading ':',
6013 mode_b => second column of diff-index output,
6014 sha1_b => sha1sum of the final blob,
6015 chg => change type [MCRADT],
6016 file_a => original file name of a file (iff chg is 'C' or 'R')
6017 file_b => new/current file name of a file (any chg)
6018 }
6019 ;
6020
6021 # retval of read_url_paths{,_all}();
6022 $l_map = {
6023 # repository root url
6024 'https://svn.musicpd.org' => {
6025 # repository path # GIT_SVN_ID
6026 'mpd/trunk' => 'trunk',
6027 'mpd/tags/0.11.5' => 'tags/0.11.5',
6028 },
6029 }
6030
6031 Notes:
6032 I don't trust the each() function on unless I created %hash myself
6033 because the internal iterator may not have started at base.
The Best VCS Around