?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
block-sha1: improved SHA1 hashing
[git/dscho.git] / git-svn.perl
blobd0758107249f3743795d0961d36906452ac7d00a
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 $Git::SVN::Log::TZ = $ENV{TZ};
25 $ENV{TZ} = 'UTC';
26 $| = 1; # unbuffer STDOUT
27
28 sub fatal (@) { print STDERR "@_\n"; exit 1 }
29 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
30 require SVN::Ra;
31 require SVN::Delta;
32 if ($SVN::Core::VERSION lt '1.1.0') {
33 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
34 }
35 my $can_compress = eval { require Compress::Zlib; 1};
36 push @Git::SVN::Ra::ISA, 'SVN::Ra';
37 push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
38 push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
39 use Carp qw/croak/;
40 use Digest::MD5;
41 use IO::File qw//;
42 use File::Basename qw/dirname basename/;
43 use File::Path qw/mkpath/;
44 use File::Spec;
45 use File::Find;
46 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
47 use IPC::Open3;
48 use Git;
49
50 BEGIN {
51 # import functions from Git into our packages, en masse
52 no strict 'refs';
53 foreach (qw/command command_oneline command_noisy command_output_pipe
54 command_input_pipe command_close_pipe
55 command_bidi_pipe command_close_bidi_pipe/) {
56 for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher
57 Git::SVN::Migration Git::SVN::Log Git::SVN),
58 __PACKAGE__) {
59 *{"${package}::$_"} = \&{"Git::$_"};
60 }
61 }
62 }
63
64 my ($SVN);
65
66 $sha1 = qr/[a-f\d]{40}/;
67 $sha1_short = qr/[a-f\d]{4,40}/;
68 my ($_stdin, $_help, $_edit,
69 $_message, $_file, $_branch_dest,
70 $_template, $_shared,
71 $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
72 $_merge, $_strategy, $_dry_run, $_local,
73 $_prefix, $_no_checkout, $_url, $_verbose,
74 $_git_format, $_commit_url, $_tag);
75 $Git::SVN::_follow_parent = 1;
76 $_q ||= 0;
77 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
78 'config-dir=s' => \$Git::SVN::Ra::config_dir,
79 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
80 'ignore-paths=s' => \$SVN::Git::Fetcher::_ignore_regex );
81 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
82 'authors-file|A=s' => \$_authors,
83 'authors-prog=s' => \$_authors_prog,
84 'repack:i' => \$Git::SVN::_repack,
85 'noMetadata' => \$Git::SVN::_no_metadata,
86 'useSvmProps' => \$Git::SVN::_use_svm_props,
87 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
88 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
89 'no-checkout' => \$_no_checkout,
90 'quiet|q+' => \$_q,
91 'repack-flags|repack-args|repack-opts=s' =>
92 \$Git::SVN::_repack_flags,
93 'use-log-author' => \$Git::SVN::_use_log_author,
94 'add-author-from' => \$Git::SVN::_add_author_from,
95 'localtime' => \$Git::SVN::_localtime,
96 %remote_opts );
97
98 my ($_trunk, @_tags, @_branches, $_stdlayout);
99 my %icv;
100 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
101 'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags,
102 'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix,
103 'stdlayout|s' => \$_stdlayout,
104 'minimize-url|m!' => \$Git::SVN::_minimize_url,
105 'no-metadata' => sub { $icv{noMetadata} = 1 },
106 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
107 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
108 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
109 %remote_opts );
110 my %cmt_opts = ( 'edit|e' => \$_edit,
111 'rmdir' => \$SVN::Git::Editor::_rmdir,
112 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
113 'l=i' => \$SVN::Git::Editor::_rename_limit,
114 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
115 );
116
117 my %cmd = (
118 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
119 { 'revision|r=s' => \$_revision,
120 'fetch-all|all' => \$_fetch_all,
121 'parent|p' => \$_fetch_parent,
122 %fc_opts } ],
123 clone => [ \&cmd_clone, "Initialize and fetch revisions",
124 { 'revision|r=s' => \$_revision,
125 %fc_opts, %init_opts } ],
126 init => [ \&cmd_init, "Initialize a repo for tracking" .
127 " (requires URL argument)",
128 \%init_opts ],
129 'multi-init' => [ \&cmd_multi_init,
130 "Deprecated alias for ".
131 "'$0 init -T<trunk> -b<branches> -t<tags>'",
132 \%init_opts ],
133 dcommit => [ \&cmd_dcommit,
134 'Commit several diffs to merge with upstream',
135 { 'merge|m|M' => \$_merge,
136 'strategy|s=s' => \$_strategy,
137 'verbose|v' => \$_verbose,
138 'dry-run|n' => \$_dry_run,
139 'fetch-all|all' => \$_fetch_all,
140 'commit-url=s' => \$_commit_url,
141 'revision|r=i' => \$_revision,
142 'no-rebase' => \$_no_rebase,
143 %cmt_opts, %fc_opts } ],
144 branch => [ \&cmd_branch,
145 'Create a branch in the SVN repository',
146 { 'message|m=s' => \$_message,
147 'destination|d=s' => \$_branch_dest,
148 'dry-run|n' => \$_dry_run,
149 'tag|t' => \$_tag } ],
150 tag => [ sub { $_tag = 1; cmd_branch(@_) },
151 'Create a tag in the SVN repository',
152 { 'message|m=s' => \$_message,
153 'destination|d=s' => \$_branch_dest,
154 'dry-run|n' => \$_dry_run } ],
155 'set-tree' => [ \&cmd_set_tree,
156 "Set an SVN repository to a git tree-ish",
157 { 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ],
158 'create-ignore' => [ \&cmd_create_ignore,
159 'Create a .gitignore per svn:ignore',
160 { 'revision|r=i' => \$_revision
161 } ],
162 'propget' => [ \&cmd_propget,
163 'Print the value of a property on a file or directory',
164 { 'revision|r=i' => \$_revision } ],
165 'proplist' => [ \&cmd_proplist,
166 'List all properties of a file or directory',
167 { 'revision|r=i' => \$_revision } ],
168 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
169 { 'revision|r=i' => \$_revision
170 } ],
171 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
172 { 'revision|r=i' => \$_revision
173 } ],
174 'multi-fetch' => [ \&cmd_multi_fetch,
175 "Deprecated alias for $0 fetch --all",
176 { 'revision|r=s' => \$_revision, %fc_opts } ],
177 'migrate' => [ sub { },
178 # no-op, we automatically run this anyways,
179 'Migrate configuration/metadata/layout from
180 previous versions of git-svn',
181 { 'minimize' => \$Git::SVN::Migration::_minimize,
182 %remote_opts } ],
183 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
184 { 'limit=i' => \$Git::SVN::Log::limit,
185 'revision|r=s' => \$_revision,
186 'verbose|v' => \$Git::SVN::Log::verbose,
187 'incremental' => \$Git::SVN::Log::incremental,
188 'oneline' => \$Git::SVN::Log::oneline,
189 'show-commit' => \$Git::SVN::Log::show_commit,
190 'non-recursive' => \$Git::SVN::Log::non_recursive,
191 'authors-file|A=s' => \$_authors,
192 'color' => \$Git::SVN::Log::color,
193 'pager=s' => \$Git::SVN::Log::pager
194 } ],
195 'find-rev' => [ \&cmd_find_rev,
196 "Translate between SVN revision numbers and tree-ish",
197 {} ],
198 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
199 { 'merge|m|M' => \$_merge,
200 'verbose|v' => \$_verbose,
201 'strategy|s=s' => \$_strategy,
202 'local|l' => \$_local,
203 'fetch-all|all' => \$_fetch_all,
204 'dry-run|n' => \$_dry_run,
205 %fc_opts } ],
206 'commit-diff' => [ \&cmd_commit_diff,
207 'Commit a diff between two trees',
208 { 'message|m=s' => \$_message,
209 'file|F=s' => \$_file,
210 'revision|r=s' => \$_revision,
211 %cmt_opts } ],
212 'info' => [ \&cmd_info,
213 "Show info about the latest SVN revision
214 on the current branch",
215 { 'url' => \$_url, } ],
216 'blame' => [ \&Git::SVN::Log::cmd_blame,
217 "Show what revision and author last modified each line of a file",
218 { 'git-format' => \$_git_format } ],
219 'reset' => [ \&cmd_reset,
220 "Undo fetches back to the specified SVN revision",
221 { 'revision|r=s' => \$_revision,
222 'parent|p' => \$_fetch_parent } ],
223 'gc' => [ \&cmd_gc,
224 "Compress unhandled.log files in .git/svn and remove " .
225 "index files in .git/svn",
226 {} ],
227 );
228
229 my $cmd;
230 for (my $i = 0; $i < @ARGV; $i++) {
231 if (defined $cmd{$ARGV[$i]}) {
232 $cmd = $ARGV[$i];
233 splice @ARGV, $i, 1;
234 last;
235 } elsif ($ARGV[$i] eq 'help') {
236 $cmd = $ARGV[$i+1];
237 usage(0);
238 }
239 };
240
241 # make sure we're always running at the top-level working directory
242 unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
243 unless (-d $ENV{GIT_DIR}) {
244 if ($git_dir_user_set) {
245 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
246 "but it is not a directory\n";
247 }
248 my $git_dir = delete $ENV{GIT_DIR};
249 my $cdup = undef;
250 git_cmd_try {
251 $cdup = command_oneline(qw/rev-parse --show-cdup/);
252 $git_dir = '.' unless ($cdup);
253 chomp $cdup if ($cdup);
254 $cdup = "." unless ($cdup && length $cdup);
255 } "Already at toplevel, but $git_dir not found\n";
256 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
257 unless (-d $git_dir) {
258 die "$git_dir still not found after going to ",
259 "'$cdup'\n";
260 }
261 $ENV{GIT_DIR} = $git_dir;
262 }
263 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
264 }
265
266 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
267
268 read_repo_config(\%opts);
269 if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
270 Getopt::Long::Configure('pass_through');
271 }
272 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
273 'minimize-connections' => \$Git::SVN::Migration::_minimize,
274 'id|i=s' => \$Git::SVN::default_ref_id,
275 'svn-remote|remote|R=s' => sub {
276 $Git::SVN::no_reuse_existing = 1;
277 $Git::SVN::default_repo_id = $_[1] });
278 exit 1 if (!$rv && $cmd && $cmd ne 'log');
279
280 usage(0) if $_help;
281 version() if $_version;
282 usage(1) unless defined $cmd;
283 load_authors() if $_authors;
284 if (defined $_authors_prog) {
285 $_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'";
286 }
287
288 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
289 Git::SVN::Migration::migration_check();
290 }
291 Git::SVN::init_vars();
292 eval {
293 Git::SVN::verify_remotes_sanity();
294 $cmd{$cmd}->[0]->(@ARGV);
295 };
296 fatal $@ if $@;
297 post_fetch_checkout();
298 exit 0;
299
300 ####################### primary functions ######################
301 sub usage {
302 my $exit = shift || 0;
303 my $fd = $exit ? \*STDERR : \*STDOUT;
304 print $fd <<"";
305 git-svn - bidirectional operations between a single Subversion tree and git
306 Usage: git svn <command> [options] [arguments]\n
307
308 print $fd "Available commands:\n" unless $cmd;
309
310 foreach (sort keys %cmd) {
311 next if $cmd && $cmd ne $_;
312 next if /^multi-/; # don't show deprecated commands
313 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
314 foreach (sort keys %{$cmd{$_}->[2]}) {
315 # mixed-case options are for .git/config only
316 next if /[A-Z]/ && /^[a-z]+$/i;
317 # prints out arguments as they should be passed:
318 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
319 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
320 "--$_" : "-$_" }
321 split /\|/,$_)," $x\n";
322 }
323 }
324 print $fd <<"";
325 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
326 arbitrary identifier if you're tracking multiple SVN branches/repositories in
327 one git repository and want to keep them separate. See git-svn(1) for more
328 information.
329
330 exit $exit;
331 }
332
333 sub version {
334 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
335 exit 0;
336 }
337
338 sub do_git_init_db {
339 unless (-d $ENV{GIT_DIR}) {
340 my @init_db = ('init');
341 push @init_db, "--template=$_template" if defined $_template;
342 if (defined $_shared) {
343 if ($_shared =~ /[a-z]/) {
344 push @init_db, "--shared=$_shared";
345 } else {
346 push @init_db, "--shared";
347 }
348 }
349 command_noisy(@init_db);
350 $_repository = Git->repository(Repository => ".git");
351 }
352 command_noisy('config', 'core.autocrlf', 'false');
353 my $set;
354 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
355 foreach my $i (keys %icv) {
356 die "'$set' and '$i' cannot both be set\n" if $set;
357 next unless defined $icv{$i};
358 command_noisy('config', "$pfx.$i", $icv{$i});
359 $set = $i;
360 }
361 my $ignore_regex = \$SVN::Git::Fetcher::_ignore_regex;
362 command_noisy('config', "$pfx.ignore-paths", $$ignore_regex)
363 if defined $$ignore_regex;
364 }
365
366 sub init_subdir {
367 my $repo_path = shift or return;
368 mkpath([$repo_path]) unless -d $repo_path;
369 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
370 $ENV{GIT_DIR} = '.git';
371 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
372 }
373
374 sub cmd_clone {
375 my ($url, $path) = @_;
376 if (!defined $path &&
377 (defined $_trunk || @_branches || @_tags ||
378 defined $_stdlayout) &&
379 $url !~ m#^[a-z\+]+://#) {
380 $path = $url;
381 }
382 $path = basename($url) if !defined $path || !length $path;
383 cmd_init($url, $path);
384 Git::SVN::fetch_all($Git::SVN::default_repo_id);
385 command_oneline('config', 'svn.authorsfile', $_authors) if $_authors;
386 }
387
388 sub cmd_init {
389 if (defined $_stdlayout) {
390 $_trunk = 'trunk' if (!defined $_trunk);
391 @_tags = 'tags' if (! @_tags);
392 @_branches = 'branches' if (! @_branches);
393 }
394 if (defined $_trunk || @_branches || @_tags) {
395 return cmd_multi_init(@_);
396 }
397 my $url = shift or die "SVN repository location required ",
398 "as a command-line argument\n";
399 $url = canonicalize_url($url);
400 init_subdir(@_);
401 do_git_init_db();
402
403 if ($Git::SVN::_minimize_url eq 'unset') {
404 $Git::SVN::_minimize_url = 0;
405 }
406
407 Git::SVN->init($url);
408 }
409
410 sub cmd_fetch {
411 if (grep /^\d+=./, @_) {
412 die "'<rev>=<commit>' fetch arguments are ",
413 "no longer supported.\n";
414 }
415 my ($remote) = @_;
416 if (@_ > 1) {
417 die "Usage: $0 fetch [--all] [--parent] [svn-remote]\n";
418 }
419 if ($_fetch_parent) {
420 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
421 unless ($gs) {
422 die "Unable to determine upstream SVN information from ",
423 "working tree history\n";
424 }
425 # just fetch, don't checkout.
426 $_no_checkout = 'true';
427 $_fetch_all ? $gs->fetch_all : $gs->fetch;
428 } elsif ($_fetch_all) {
429 cmd_multi_fetch();
430 } else {
431 $remote ||= $Git::SVN::default_repo_id;
432 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
433 }
434 }
435
436 sub cmd_set_tree {
437 my (@commits) = @_;
438 if ($_stdin || !@commits) {
439 print "Reading from stdin...\n";
440 @commits = ();
441 while (<STDIN>) {
442 if (/\b($sha1_short)\b/o) {
443 unshift @commits, $1;
444 }
445 }
446 }
447 my @revs;
448 foreach my $c (@commits) {
449 my @tmp = command('rev-parse',$c);
450 if (scalar @tmp == 1) {
451 push @revs, $tmp[0];
452 } elsif (scalar @tmp > 1) {
453 push @revs, reverse(command('rev-list',@tmp));
454 } else {
455 fatal "Failed to rev-parse $c";
456 }
457 }
458 my $gs = Git::SVN->new;
459 my ($r_last, $cmt_last) = $gs->last_rev_commit;
460 $gs->fetch;
461 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
462 fatal "There are new revisions that were fetched ",
463 "and need to be merged (or acknowledged) ",
464 "before committing.\nlast rev: $r_last\n",
465 " current: $gs->{last_rev}";
466 }
467 $gs->set_tree($_) foreach @revs;
468 print "Done committing ",scalar @revs," revisions to SVN\n";
469 unlink $gs->{index};
470 }
471
472 sub cmd_dcommit {
473 my $head = shift;
474 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) }
475 'Cannot dcommit with a dirty index. Commit your changes first, '
476 . "or stash them with `git stash'.\n";
477 $head ||= 'HEAD';
478
479 my $old_head;
480 if ($head ne 'HEAD') {
481 $old_head = eval {
482 command_oneline([qw/symbolic-ref -q HEAD/])
483 };
484 if ($old_head) {
485 $old_head =~ s{^refs/heads/}{};
486 } else {
487 $old_head = eval { command_oneline(qw/rev-parse HEAD/) };
488 }
489 command(['checkout', $head], STDERR => 0);
490 }
491
492 my @refs;
493 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
494 unless ($gs) {
495 die "Unable to determine upstream SVN information from ",
496 "$head history.\nPerhaps the repository is empty.";
497 }
498
499 if (defined $_commit_url) {
500 $url = $_commit_url;
501 } else {
502 $url = eval { command_oneline('config', '--get',
503 "svn-remote.$gs->{repo_id}.commiturl") };
504 if (!$url) {
505 $url = $gs->full_url
506 }
507 }
508
509 my $last_rev = $_revision if defined $_revision;
510 if ($url) {
511 print "Committing to $url ...\n";
512 }
513 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
514 if ($_no_rebase && scalar(@$linear_refs) > 1) {
515 warn "Attempting to commit more than one change while ",
516 "--no-rebase is enabled.\n",
517 "If these changes depend on each other, re-running ",
518 "without --no-rebase may be required."
519 }
520 my $expect_url = $url;
521 Git::SVN::remove_username($expect_url);
522 while (1) {
523 my $d = shift @$linear_refs or last;
524 unless (defined $last_rev) {
525 (undef, $last_rev, undef) = cmt_metadata("$d~1");
526 unless (defined $last_rev) {
527 fatal "Unable to extract revision information ",
528 "from commit $d~1";
529 }
530 }
531 if ($_dry_run) {
532 print "diff-tree $d~1 $d\n";
533 } else {
534 my $cmt_rev;
535 my %ed_opts = ( r => $last_rev,
536 log => get_commit_entry($d)->{log},
537 ra => Git::SVN::Ra->new($url),
538 config => SVN::Core::config_get_config(
539 $Git::SVN::Ra::config_dir
540 ),
541 tree_a => "$d~1",
542 tree_b => $d,
543 editor_cb => sub {
544 print "Committed r$_[0]\n";
545 $cmt_rev = $_[0];
546 },
547 svn_path => '');
548 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
549 print "No changes\n$d~1 == $d\n";
550 } elsif ($parents->{$d} && @{$parents->{$d}}) {
551 $gs->{inject_parents_dcommit}->{$cmt_rev} =
552 $parents->{$d};
553 }
554 $_fetch_all ? $gs->fetch_all : $gs->fetch;
555 $last_rev = $cmt_rev;
556 next if $_no_rebase;
557
558 # we always want to rebase against the current HEAD,
559 # not any head that was passed to us
560 my @diff = command('diff-tree', $d,
561 $gs->refname, '--');
562 my @finish;
563 if (@diff) {
564 @finish = rebase_cmd();
565 print STDERR "W: $d and ", $gs->refname,
566 " differ, using @finish:\n",
567 join("\n", @diff), "\n";
568 } else {
569 print "No changes between current HEAD and ",
570 $gs->refname,
571 "\nResetting to the latest ",
572 $gs->refname, "\n";
573 @finish = qw/reset --mixed/;
574 }
575 command_noisy(@finish, $gs->refname);
576 if (@diff) {
577 @refs = ();
578 my ($url_, $rev_, $uuid_, $gs_) =
579 working_head_info('HEAD', \@refs);
580 my ($linear_refs_, $parents_) =
581 linearize_history($gs_, \@refs);
582 if (scalar(@$linear_refs) !=
583 scalar(@$linear_refs_)) {
584 fatal "# of revisions changed ",
585 "\nbefore:\n",
586 join("\n", @$linear_refs),
587 "\n\nafter:\n",
588 join("\n", @$linear_refs_), "\n",
589 'If you are attempting to commit ',
590 "merges, try running:\n\t",
591 'git rebase --interactive',
592 '--preserve-merges ',
593 $gs->refname,
594 "\nBefore dcommitting";
595 }
596 if ($url_ ne $expect_url) {
597 fatal "URL mismatch after rebase: ",
598 "$url_ != $expect_url";
599 }
600 if ($uuid_ ne $uuid) {
601 fatal "uuid mismatch after rebase: ",
602 "$uuid_ != $uuid";
603 }
604 # remap parents
605 my (%p, @l, $i);
606 for ($i = 0; $i < scalar @$linear_refs; $i++) {
607 my $new = $linear_refs_->[$i] or next;
608 $p{$new} =
609 $parents->{$linear_refs->[$i]};
610 push @l, $new;
611 }
612 $parents = \%p;
613 $linear_refs = \@l;
614 }
615 }
616 }
617
618 if ($old_head) {
619 my $new_head = command_oneline(qw/rev-parse HEAD/);
620 my $new_is_symbolic = eval {
621 command_oneline(qw/symbolic-ref -q HEAD/);
622 };
623 if ($new_is_symbolic) {
624 print "dcommitted the branch ", $head, "\n";
625 } else {
626 print "dcommitted on a detached HEAD because you gave ",
627 "a revision argument.\n",
628 "The rewritten commit is: ", $new_head, "\n";
629 }
630 command(['checkout', $old_head], STDERR => 0);
631 }
632
633 unlink $gs->{index};
634 }
635
636 sub cmd_branch {
637 my ($branch_name, $head) = @_;
638
639 unless (defined $branch_name && length $branch_name) {
640 die(($_tag ? "tag" : "branch") . " name required\n");
641 }
642 $head ||= 'HEAD';
643
644 my ($src, $rev, undef, $gs) = working_head_info($head);
645
646 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
647 my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
648 my $glob;
649 if ($#{$allglobs} == 0) {
650 $glob = $allglobs->[0];
651 } else {
652 unless(defined $_branch_dest) {
653 die "Multiple ",
654 $_tag ? "tag" : "branch",
655 " paths defined for Subversion repository.\n",
656 "You must specify where you want to create the ",
657 $_tag ? "tag" : "branch",
658 " with the --destination argument.\n";
659 }
660 foreach my $g (@{$allglobs}) {
661 # SVN::Git::Editor could probably be moved to Git.pm..
662 my $re = SVN::Git::Editor::glob2pat($g->{path}->{left});
663 if ($_branch_dest =~ /$re/) {
664 $glob = $g;
665 last;
666 }
667 }
668 unless (defined $glob) {
669 my $dest_re = qr/\b\Q$_branch_dest\E\b/;
670 foreach my $g (@{$allglobs}) {
671 $g->{path}->{left} =~ /$dest_re/ or next;
672 if (defined $glob) {
673 die "Ambiguous destination: ",
674 $_branch_dest, "\nmatches both '",
675 $glob->{path}->{left}, "' and '",
676 $g->{path}->{left}, "'\n";
677 }
678 $glob = $g;
679 }
680 unless (defined $glob) {
681 die "Unknown ",
682 $_tag ? "tag" : "branch",
683 " destination $_branch_dest\n";
684 }
685 }
686 }
687 my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
688 my $dst = join '/', $remote->{url}, $lft, $branch_name, ($rgt || ());
689
690 my $ctx = SVN::Client->new(
691 auth => Git::SVN::Ra::_auth_providers(),
692 log_msg => sub {
693 ${ $_[0] } = defined $_message
694 ? $_message
695 : 'Create ' . ($_tag ? 'tag ' : 'branch ' )
696 . $branch_name;
697 },
698 );
699
700 eval {
701 $ctx->ls($dst, 'HEAD', 0);
702 } and die "branch ${branch_name} already exists\n";
703
704 print "Copying ${src} at r${rev} to ${dst}...\n";
705 $ctx->copy($src, $rev, $dst)
706 unless $_dry_run;
707
708 $gs->fetch_all;
709 }
710
711 sub cmd_find_rev {
712 my $revision_or_hash = shift or die "SVN or git revision required ",
713 "as a command-line argument\n";
714 my $result;
715 if ($revision_or_hash =~ /^r\d+$/) {
716 my $head = shift;
717 $head ||= 'HEAD';
718 my @refs;
719 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
720 unless ($gs) {
721 die "Unable to determine upstream SVN information from ",
722 "$head history\n";
723 }
724 my $desired_revision = substr($revision_or_hash, 1);
725 $result = $gs->rev_map_get($desired_revision, $uuid);
726 } else {
727 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
728 $result = $rev;
729 }
730 print "$result\n" if $result;
731 }
732
733 sub cmd_rebase {
734 command_noisy(qw/update-index --refresh/);
735 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
736 unless ($gs) {
737 die "Unable to determine upstream SVN information from ",
738 "working tree history\n";
739 }
740 if ($_dry_run) {
741 print "Remote Branch: " . $gs->refname . "\n";
742 print "SVN URL: " . $url . "\n";
743 return;
744 }
745 if (command(qw/diff-index HEAD --/)) {
746 print STDERR "Cannot rebase with uncommited changes:\n";
747 command_noisy('status');
748 exit 1;
749 }
750 unless ($_local) {
751 # rebase will checkout for us, so no need to do it explicitly
752 $_no_checkout = 'true';
753 $_fetch_all ? $gs->fetch_all : $gs->fetch;
754 }
755 command_noisy(rebase_cmd(), $gs->refname);
756 }
757
758 sub cmd_show_ignore {
759 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
760 $gs ||= Git::SVN->new;
761 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
762 $gs->prop_walk($gs->{path}, $r, sub {
763 my ($gs, $path, $props) = @_;
764 print STDOUT "\n# $path\n";
765 my $s = $props->{'svn:ignore'} or return;
766 $s =~ s/[\r\n]+/\n/g;
767 chomp $s;
768 $s =~ s#^#$path#gm;
769 print STDOUT "$s\n";
770 });
771 }
772
773 sub cmd_show_externals {
774 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
775 $gs ||= Git::SVN->new;
776 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
777 $gs->prop_walk($gs->{path}, $r, sub {
778 my ($gs, $path, $props) = @_;
779 print STDOUT "\n# $path\n";
780 my $s = $props->{'svn:externals'} or return;
781 $s =~ s/[\r\n]+/\n/g;
782 chomp $s;
783 $s =~ s#^#$path#gm;
784 print STDOUT "$s\n";
785 });
786 }
787
788 sub cmd_create_ignore {
789 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
790 $gs ||= Git::SVN->new;
791 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
792 $gs->prop_walk($gs->{path}, $r, sub {
793 my ($gs, $path, $props) = @_;
794 # $path is of the form /path/to/dir/
795 $path = '.' . $path;
796 # SVN can have attributes on empty directories,
797 # which git won't track
798 mkpath([$path]) unless -d $path;
799 my $ignore = $path . '.gitignore';
800 my $s = $props->{'svn:ignore'} or return;
801 open(GITIGNORE, '>', $ignore)
802 or fatal("Failed to open `$ignore' for writing: $!");
803 $s =~ s/[\r\n]+/\n/g;
804 chomp $s;
805 # Prefix all patterns so that the ignore doesn't apply
806 # to sub-directories.
807 $s =~ s#^#/#gm;
808 print GITIGNORE "$s\n";
809 close(GITIGNORE)
810 or fatal("Failed to close `$ignore': $!");
811 command_noisy('add', '-f', $ignore);
812 });
813 }
814
815 sub canonicalize_path {
816 my ($path) = @_;
817 my $dot_slash_added = 0;
818 if (substr($path, 0, 1) ne "/") {
819 $path = "./" . $path;
820 $dot_slash_added = 1;
821 }
822 # File::Spec->canonpath doesn't collapse x/../y into y (for a
823 # good reason), so let's do this manually.
824 $path =~ s#/+#/#g;
825 $path =~ s#/\.(?:/|$)#/#g;
826 $path =~ s#/[^/]+/\.\.##g;
827 $path =~ s#/$##g;
828 $path =~ s#^\./## if $dot_slash_added;
829 $path =~ s#^/##;
830 $path =~ s#^\.$##;
831 return $path;
832 }
833
834 sub canonicalize_url {
835 my ($url) = @_;
836 $url =~ s#^([^:]+://[^/]*/)(.*)$#$1 . canonicalize_path($2)#e;
837 return $url;
838 }
839
840 # get_svnprops(PATH)
841 # ------------------
842 # Helper for cmd_propget and cmd_proplist below.
843 sub get_svnprops {
844 my $path = shift;
845 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
846 $gs ||= Git::SVN->new;
847
848 # prefix THE PATH by the sub-directory from which the user
849 # invoked us.
850 $path = $cmd_dir_prefix . $path;
851 fatal("No such file or directory: $path") unless -e $path;
852 my $is_dir = -d $path ? 1 : 0;
853 $path = $gs->{path} . '/' . $path;
854
855 # canonicalize the path (otherwise libsvn will abort or fail to
856 # find the file)
857 $path = canonicalize_path($path);
858
859 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
860 my $props;
861 if ($is_dir) {
862 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
863 }
864 else {
865 (undef, $props) = $gs->ra->get_file($path, $r, undef);
866 }
867 return $props;
868 }
869
870 # cmd_propget (PROP, PATH)
871 # ------------------------
872 # Print the SVN property PROP for PATH.
873 sub cmd_propget {
874 my ($prop, $path) = @_;
875 $path = '.' if not defined $path;
876 usage(1) if not defined $prop;
877 my $props = get_svnprops($path);
878 if (not defined $props->{$prop}) {
879 fatal("`$path' does not have a `$prop' SVN property.");
880 }
881 print $props->{$prop} . "\n";
882 }
883
884 # cmd_proplist (PATH)
885 # -------------------
886 # Print the list of SVN properties for PATH.
887 sub cmd_proplist {
888 my $path = shift;
889 $path = '.' if not defined $path;
890 my $props = get_svnprops($path);
891 print "Properties on '$path':\n";
892 foreach (sort keys %{$props}) {
893 print " $_\n";
894 }
895 }
896
897 sub cmd_multi_init {
898 my $url = shift;
899 unless (defined $_trunk || @_branches || @_tags) {
900 usage(1);
901 }
902
903 $_prefix = '' unless defined $_prefix;
904 if (defined $url) {
905 $url = canonicalize_url($url);
906 init_subdir(@_);
907 }
908 do_git_init_db();
909 if (defined $_trunk) {
910 my $trunk_ref = $_prefix . 'trunk';
911 # try both old-style and new-style lookups:
912 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
913 unless ($gs_trunk) {
914 my ($trunk_url, $trunk_path) =
915 complete_svn_url($url, $_trunk);
916 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
917 undef, $trunk_ref);
918 }
919 }
920 return unless @_branches || @_tags;
921 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
922 foreach my $path (@_branches) {
923 complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
924 }
925 foreach my $path (@_tags) {
926 complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
927 }
928 }
929
930 sub cmd_multi_fetch {
931 my $remotes = Git::SVN::read_all_remotes();
932 foreach my $repo_id (sort keys %$remotes) {
933 if ($remotes->{$repo_id}->{url}) {
934 Git::SVN::fetch_all($repo_id, $remotes);
935 }
936 }
937 }
938
939 # this command is special because it requires no metadata
940 sub cmd_commit_diff {
941 my ($ta, $tb, $url) = @_;
942 my $usage = "Usage: $0 commit-diff -r<revision> ".
943 "<tree-ish> <tree-ish> [<URL>]";
944 fatal($usage) if (!defined $ta || !defined $tb);
945 my $svn_path = '';
946 if (!defined $url) {
947 my $gs = eval { Git::SVN->new };
948 if (!$gs) {
949 fatal("Needed URL or usable git-svn --id in ",
950 "the command-line\n", $usage);
951 }
952 $url = $gs->{url};
953 $svn_path = $gs->{path};
954 }
955 unless (defined $_revision) {
956 fatal("-r|--revision is a required argument\n", $usage);
957 }
958 if (defined $_message && defined $_file) {
959 fatal("Both --message/-m and --file/-F specified ",
960 "for the commit message.\n",
961 "I have no idea what you mean");
962 }
963 if (defined $_file) {
964 $_message = file_to_s($_file);
965 } else {
966 $_message ||= get_commit_entry($tb)->{log};
967 }
968 my $ra ||= Git::SVN::Ra->new($url);
969 my $r = $_revision;
970 if ($r eq 'HEAD') {
971 $r = $ra->get_latest_revnum;
972 } elsif ($r !~ /^\d+$/) {
973 die "revision argument: $r not understood by git-svn\n";
974 }
975 my %ed_opts = ( r => $r,
976 log => $_message,
977 ra => $ra,
978 tree_a => $ta,
979 tree_b => $tb,
980 editor_cb => sub { print "Committed r$_[0]\n" },
981 svn_path => $svn_path );
982 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
983 print "No changes\n$ta == $tb\n";
984 }
985 }
986
987 sub escape_uri_only {
988 my ($uri) = @_;
989 my @tmp;
990 foreach (split m{/}, $uri) {
991 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
992 push @tmp, $_;
993 }
994 join('/', @tmp);
995 }
996
997 sub escape_url {
998 my ($url) = @_;
999 if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) {
1000 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
1001 $url = "$scheme://$domain$uri";
1002 }
1003 $url;
1004 }
1005
1006 sub cmd_info {
1007 my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
1008 my $fullpath = canonicalize_path($cmd_dir_prefix . $path);
1009 if (exists $_[1]) {
1010 die "Too many arguments specified\n";
1011 }
1012
1013 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
1014
1015 if (!$file_type && !$diff_status) {
1016 print STDERR "svn: '$path' is not under version control\n";
1017 exit 1;
1018 }
1019
1020 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1021 unless ($gs) {
1022 die "Unable to determine upstream SVN information from ",
1023 "working tree history\n";
1024 }
1025
1026 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
1027 $path = "." if $path eq "";
1028
1029 my $full_url = $url . ($fullpath eq "" ? "" : "/$fullpath");
1030
1031 if ($_url) {
1032 print escape_url($full_url), "\n";
1033 return;
1034 }
1035
1036 my $result = "Path: $path\n";
1037 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
1038 $result .= "URL: " . escape_url($full_url) . "\n";
1039
1040 eval {
1041 my $repos_root = $gs->repos_root;
1042 Git::SVN::remove_username($repos_root);
1043 $result .= "Repository Root: " . escape_url($repos_root) . "\n";
1044 };
1045 if ($@) {
1046 $result .= "Repository Root: (offline)\n";
1047 }
1048 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
1049 ($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir");
1050 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
1051
1052 $result .= "Node Kind: " .
1053 ($file_type eq "dir" ? "directory" : "file") . "\n";
1054
1055 my $schedule = $diff_status eq "A"
1056 ? "add"
1057 : ($diff_status eq "D" ? "delete" : "normal");
1058 $result .= "Schedule: $schedule\n";
1059
1060 if ($diff_status eq "A") {
1061 print $result, "\n";
1062 return;
1063 }
1064
1065 my ($lc_author, $lc_rev, $lc_date_utc);
1066 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $fullpath);
1067 my $log = command_output_pipe(@args);
1068 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
1069 while (<$log>) {
1070 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
1071 $lc_author = $1;
1072 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
1073 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
1074 (undef, $lc_rev, undef) = ::extract_metadata($1);
1075 }
1076 }
1077 close $log;
1078
1079 Git::SVN::Log::set_local_timezone();
1080
1081 $result .= "Last Changed Author: $lc_author\n";
1082 $result .= "Last Changed Rev: $lc_rev\n";
1083 $result .= "Last Changed Date: " .
1084 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
1085
1086 if ($file_type ne "dir") {
1087 my $text_last_updated_date =
1088 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
1089 $result .=
1090 "Text Last Updated: " .
1091 Git::SVN::Log::format_svn_date($text_last_updated_date) .
1092 "\n";
1093 my $checksum;
1094 if ($diff_status eq "D") {
1095 my ($fh, $ctx) =
1096 command_output_pipe(qw(cat-file blob), "HEAD:$path");
1097 if ($file_type eq "link") {
1098 my $file_name = <$fh>;
1099 $checksum = md5sum("link $file_name");
1100 } else {
1101 $checksum = md5sum($fh);
1102 }
1103 command_close_pipe($fh, $ctx);
1104 } elsif ($file_type eq "link") {
1105 my $file_name =
1106 command(qw(cat-file blob), "HEAD:$path");
1107 $checksum =
1108 md5sum("link " . $file_name);
1109 } else {
1110 open FILE, "<", $path or die $!;
1111 $checksum = md5sum(\*FILE);
1112 close FILE or die $!;
1113 }
1114 $result .= "Checksum: " . $checksum . "\n";
1115 }
1116
1117 print $result, "\n";
1118 }
1119
1120 sub cmd_reset {
1121 my $target = shift || $_revision or die "SVN revision required\n";
1122 $target = $1 if $target =~ /^r(\d+)$/;
1123 $target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
1124 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1125 unless ($gs) {
1126 die "Unable to determine upstream SVN information from ".
1127 "history\n";
1128 }
1129 my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
1130 $gs->rev_map_set($r, $c, 'reset', $uuid);
1131 print "r$r = $c ($gs->{ref_id})\n";
1132 }
1133
1134 sub cmd_gc {
1135 if (!$can_compress) {
1136 warn "Compress::Zlib could not be found; unhandled.log " .
1137 "files will not be compressed.\n";
1138 }
1139 find({ wanted => \&gc_directory, no_chdir => 1}, "$ENV{GIT_DIR}/svn");
1140 }
1141
1142 ########################### utility functions #########################
1143
1144 sub rebase_cmd {
1145 my @cmd = qw/rebase/;
1146 push @cmd, '-v' if $_verbose;
1147 push @cmd, qw/--merge/ if $_merge;
1148 push @cmd, "--strategy=$_strategy" if $_strategy;
1149 @cmd;
1150 }
1151
1152 sub post_fetch_checkout {
1153 return if $_no_checkout;
1154 my $gs = $Git::SVN::_head or return;
1155 return if verify_ref('refs/heads/master^0');
1156
1157 my $valid_head = verify_ref('HEAD^0');
1158 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
1159 return if ($valid_head || !verify_ref('HEAD^0'));
1160
1161 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
1162 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
1163 return if -f $index;
1164
1165 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
1166 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
1167 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
1168 print STDERR "Checked out HEAD:\n ",
1169 $gs->full_url, " r", $gs->last_rev, "\n";
1170 }
1171
1172 sub complete_svn_url {
1173 my ($url, $path) = @_;
1174 $path =~ s#/+$##;
1175 if ($path !~ m#^[a-z\+]+://#) {
1176 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
1177 fatal("E: '$path' is not a complete URL ",
1178 "and a separate URL is not specified");
1179 }
1180 return ($url, $path);
1181 }
1182 return ($path, '');
1183 }
1184
1185 sub complete_url_ls_init {
1186 my ($ra, $repo_path, $switch, $pfx) = @_;
1187 unless ($repo_path) {
1188 print STDERR "W: $switch not specified\n";
1189 return;
1190 }
1191 $repo_path =~ s#/+$##;
1192 if ($repo_path =~ m#^[a-z\+]+://#) {
1193 $ra = Git::SVN::Ra->new($repo_path);
1194 $repo_path = '';
1195 } else {
1196 $repo_path =~ s#^/+##;
1197 unless ($ra) {
1198 fatal("E: '$repo_path' is not a complete URL ",
1199 "and a separate URL is not specified");
1200 }
1201 }
1202 my $url = $ra->{url};
1203 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
1204 my $k = "svn-remote.$gs->{repo_id}.url";
1205 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
1206 if ($orig_url && ($orig_url ne $gs->{url})) {
1207 die "$k already set: $orig_url\n",
1208 "wanted to set to: $gs->{url}\n";
1209 }
1210 command_oneline('config', $k, $gs->{url}) unless $orig_url;
1211 my $remote_path = "$gs->{path}/$repo_path";
1212 $remote_path =~ s#/+#/#g;
1213 $remote_path =~ s#^/##g;
1214 $remote_path .= "/*" if $remote_path !~ /\*/;
1215 my ($n) = ($switch =~ /^--(\w+)/);
1216 if (length $pfx && $pfx !~ m#/$#) {
1217 die "--prefix='$pfx' must have a trailing slash '/'\n";
1218 }
1219 command_noisy('config',
1220 '--add',
1221 "svn-remote.$gs->{repo_id}.$n",
1222 "$remote_path:refs/remotes/$pfx*" .
1223 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
1224 }
1225
1226 sub verify_ref {
1227 my ($ref) = @_;
1228 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1229 { STDERR => 0 }); };
1230 }
1231
1232 sub get_tree_from_treeish {
1233 my ($treeish) = @_;
1234 # $treeish can be a symbolic ref, too:
1235 my $type = command_oneline(qw/cat-file -t/, $treeish);
1236 my $expected;
1237 while ($type eq 'tag') {
1238 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1239 }
1240 if ($type eq 'commit') {
1241 $expected = (grep /^tree /, command(qw/cat-file commit/,
1242 $treeish))[0];
1243 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1244 die "Unable to get tree from $treeish\n" unless $expected;
1245 } elsif ($type eq 'tree') {
1246 $expected = $treeish;
1247 } else {
1248 die "$treeish is a $type, expected tree, tag or commit\n";
1249 }
1250 return $expected;
1251 }
1252
1253 sub get_commit_entry {
1254 my ($treeish) = shift;
1255 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1256 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1257 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1258 open my $log_fh, '>', $commit_editmsg or croak $!;
1259
1260 my $type = command_oneline(qw/cat-file -t/, $treeish);
1261 if ($type eq 'commit' || $type eq 'tag') {
1262 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1263 $type, $treeish);
1264 my $in_msg = 0;
1265 my $author;
1266 my $saw_from = 0;
1267 my $msgbuf = "";
1268 while (<$msg_fh>) {
1269 if (!$in_msg) {
1270 $in_msg = 1 if (/^\s*$/);
1271 $author = $1 if (/^author (.*>)/);
1272 } elsif (/^git-svn-id: /) {
1273 # skip this for now, we regenerate the
1274 # correct one on re-fetch anyways
1275 # TODO: set *:merge properties or like...
1276 } else {
1277 if (/^From:/ || /^Signed-off-by:/) {
1278 $saw_from = 1;
1279 }
1280 $msgbuf .= $_;
1281 }
1282 }
1283 $msgbuf =~ s/\s+$//s;
1284 if ($Git::SVN::_add_author_from && defined($author)
1285 && !$saw_from) {
1286 $msgbuf .= "\n\nFrom: $author";
1287 }
1288 print $log_fh $msgbuf or croak $!;
1289 command_close_pipe($msg_fh, $ctx);
1290 }
1291 close $log_fh or croak $!;
1292
1293 if ($_edit || ($type eq 'tree')) {
1294 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1295 # TODO: strip out spaces, comments, like git-commit.sh
1296 system($editor, $commit_editmsg);
1297 }
1298 rename $commit_editmsg, $commit_msg or croak $!;
1299 {
1300 require Encode;
1301 # SVN requires messages to be UTF-8 when entering the repo
1302 local $/;
1303 open $log_fh, '<', $commit_msg or croak $!;
1304 binmode $log_fh;
1305 chomp($log_entry{log} = <$log_fh>);
1306
1307 my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
1308 my $msg = $log_entry{log};
1309
1310 eval { $msg = Encode::decode($enc, $msg, 1) };
1311 if ($@) {
1312 die "Could not decode as $enc:\n", $msg,
1313 "\nPerhaps you need to set i18n.commitencoding\n";
1314 }
1315
1316 eval { $msg = Encode::encode('UTF-8', $msg, 1) };
1317 die "Could not encode as UTF-8:\n$msg\n" if $@;
1318
1319 $log_entry{log} = $msg;
1320
1321 close $log_fh or croak $!;
1322 }
1323 unlink $commit_msg;
1324 \%log_entry;
1325 }
1326
1327 sub s_to_file {
1328 my ($str, $file, $mode) = @_;
1329 open my $fd,'>',$file or croak $!;
1330 print $fd $str,"\n" or croak $!;
1331 close $fd or croak $!;
1332 chmod ($mode &~ umask, $file) if (defined $mode);
1333 }
1334
1335 sub file_to_s {
1336 my $file = shift;
1337 open my $fd,'<',$file or croak "$!: file: $file\n";
1338 local $/;
1339 my $ret = <$fd>;
1340 close $fd or croak $!;
1341 $ret =~ s/\s*$//s;
1342 return $ret;
1343 }
1344
1345 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1346 sub load_authors {
1347 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1348 my $log = $cmd eq 'log';
1349 while (<$authors>) {
1350 chomp;
1351 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1352 my ($user, $name, $email) = ($1, $2, $3);
1353 if ($log) {
1354 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1355 } else {
1356 $users{$user} = [$name, $email];
1357 }
1358 }
1359 close $authors or croak $!;
1360 }
1361
1362 # convert GetOpt::Long specs for use by git-config
1363 sub read_repo_config {
1364 return unless -d $ENV{GIT_DIR};
1365 my $opts = shift;
1366 my @config_only;
1367 foreach my $o (keys %$opts) {
1368 # if we have mixedCase and a long option-only, then
1369 # it's a config-only variable that we don't need for
1370 # the command-line.
1371 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1372 my $v = $opts->{$o};
1373 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1374 $key =~ s/-//g;
1375 my $arg = 'git config';
1376 $arg .= ' --int' if ($o =~ /[:=]i$/);
1377 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1378 if (ref $v eq 'ARRAY') {
1379 chomp(my @tmp = `$arg --get-all svn.$key`);
1380 @$v = @tmp if @tmp;
1381 } else {
1382 chomp(my $tmp = `$arg --get svn.$key`);
1383 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1384 $$v = $tmp;
1385 }
1386 }
1387 }
1388 delete @$opts{@config_only} if @config_only;
1389 }
1390
1391 sub extract_metadata {
1392 my $id = shift or return (undef, undef, undef);
1393 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1394 \s([a-f\d\-]+)$/ix);
1395 if (!defined $rev || !$uuid || !$url) {
1396 # some of the original repositories I made had
1397 # identifiers like this:
1398 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
1399 }
1400 return ($url, $rev, $uuid);
1401 }
1402
1403 sub cmt_metadata {
1404 return extract_metadata((grep(/^git-svn-id: /,
1405 command(qw/cat-file commit/, shift)))[-1]);
1406 }
1407
1408 sub cmt_sha2rev_batch {
1409 my %s2r;
1410 my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
1411 my $list = shift;
1412
1413 foreach my $sha (@{$list}) {
1414 my $first = 1;
1415 my $size = 0;
1416 print $out $sha, "\n";
1417
1418 while (my $line = <$in>) {
1419 if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) {
1420 last;
1421 } elsif ($first &&
1422 $line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) {
1423 $first = 0;
1424 $size = $1;
1425 next;
1426 } elsif ($line =~ /^(git-svn-id: )/) {
1427 my (undef, $rev, undef) =
1428 extract_metadata($line);
1429 $s2r{$sha} = $rev;
1430 }
1431
1432 $size -= length($line);
1433 last if ($size == 0);
1434 }
1435 }
1436
1437 command_close_bidi_pipe($pid, $in, $out, $ctx);
1438
1439 return \%s2r;
1440 }
1441
1442 sub working_head_info {
1443 my ($head, $refs) = @_;
1444 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1445 my ($fh, $ctx) = command_output_pipe(@args, $head);
1446 my $hash;
1447 my %max;
1448 while (<$fh>) {
1449 if ( m{^commit ($::sha1)$} ) {
1450 unshift @$refs, $hash if $hash and $refs;
1451 $hash = $1;
1452 next;
1453 }
1454 next unless s{^\s*(git-svn-id:)}{$1};
1455 my ($url, $rev, $uuid) = extract_metadata($_);
1456 if (defined $url && defined $rev) {
1457 next if $max{$url} and $max{$url} < $rev;
1458 if (my $gs = Git::SVN->find_by_url($url)) {
1459 my $c = $gs->rev_map_get($rev, $uuid);
1460 if ($c && $c eq $hash) {
1461 close $fh; # break the pipe
1462 return ($url, $rev, $uuid, $gs);
1463 } else {
1464 $max{$url} ||= $gs->rev_map_max;
1465 }
1466 }
1467 }
1468 }
1469 command_close_pipe($fh, $ctx);
1470 (undef, undef, undef, undef);
1471 }
1472
1473 sub read_commit_parents {
1474 my ($parents, $c) = @_;
1475 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1476 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1477 @{$parents->{$c}} = split(/ /, $p);
1478 }
1479
1480 sub linearize_history {
1481 my ($gs, $refs) = @_;
1482 my %parents;
1483 foreach my $c (@$refs) {
1484 read_commit_parents(\%parents, $c);
1485 }
1486
1487 my @linear_refs;
1488 my %skip = ();
1489 my $last_svn_commit = $gs->last_commit;
1490 foreach my $c (reverse @$refs) {
1491 next if $c eq $last_svn_commit;
1492 last if $skip{$c};
1493
1494 unshift @linear_refs, $c;
1495 $skip{$c} = 1;
1496
1497 # we only want the first parent to diff against for linear
1498 # history, we save the rest to inject when we finalize the
1499 # svn commit
1500 my $fp_a = verify_ref("$c~1");
1501 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1502 if (!$fp_a || !$fp_b) {
1503 die "Commit $c\n",
1504 "has no parent commit, and therefore ",
1505 "nothing to diff against.\n",
1506 "You should be working from a repository ",
1507 "originally created by git-svn\n";
1508 }
1509 if ($fp_a ne $fp_b) {
1510 die "$c~1 = $fp_a, however parsing commit $c ",
1511 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1512 }
1513
1514 foreach my $p (@{$parents{$c}}) {
1515 $skip{$p} = 1;
1516 }
1517 }
1518 (\@linear_refs, \%parents);
1519 }
1520
1521 sub find_file_type_and_diff_status {
1522 my ($path) = @_;
1523 return ('dir', '') if $path eq '';
1524
1525 my $diff_output =
1526 command_oneline(qw(diff --cached --name-status --), $path) || "";
1527 my $diff_status = (split(' ', $diff_output))[0] || "";
1528
1529 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1530
1531 return (undef, undef) if !$diff_status && !$ls_tree;
1532
1533 if ($diff_status eq "A") {
1534 return ("link", $diff_status) if -l $path;
1535 return ("dir", $diff_status) if -d $path;
1536 return ("file", $diff_status);
1537 }
1538
1539 my $mode = (split(' ', $ls_tree))[0] || "";
1540
1541 return ("link", $diff_status) if $mode eq "120000";
1542 return ("dir", $diff_status) if $mode eq "040000";
1543 return ("file", $diff_status);
1544 }
1545
1546 sub md5sum {
1547 my $arg = shift;
1548 my $ref = ref $arg;
1549 my $md5 = Digest::MD5->new();
1550 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
1551 $md5->addfile($arg) or croak $!;
1552 } elsif ($ref eq 'SCALAR') {
1553 $md5->add($$arg) or croak $!;
1554 } elsif (!$ref) {
1555 $md5->add($arg) or croak $!;
1556 } else {
1557 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1558 }
1559 return $md5->hexdigest();
1560 }
1561
1562 sub gc_directory {
1563 if ($can_compress && -f $_ && basename($_) eq "unhandled.log") {
1564 my $out_filename = $_ . ".gz";
1565 open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
1566 binmode $in_fh;
1567 my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
1568 die "Unable to open $out_filename: $!\n";
1569
1570 my $res;
1571 while ($res = sysread($in_fh, my $str, 1024)) {
1572 $gz->gzwrite($str) or
1573 die "Unable to write: ".$gz->gzerror()."!\n";
1574 }
1575 unlink $_ or die "unlink $File::Find::name: $!\n";
1576 } elsif (-f $_ && basename($_) eq "index") {
1577 unlink $_ or die "unlink $_: $!\n";
1578 }
1579 }
1580
1581 package Git::SVN;
1582 use strict;
1583 use warnings;
1584 use Fcntl qw/:DEFAULT :seek/;
1585 use constant rev_map_fmt => 'NH40';
1586 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1587 $_repack $_repack_flags $_use_svm_props $_head
1588 $_use_svnsync_props $no_reuse_existing $_minimize_url
1589 $_use_log_author $_add_author_from $_localtime/;
1590 use Carp qw/croak/;
1591 use File::Path qw/mkpath/;
1592 use File::Copy qw/copy/;
1593 use IPC::Open3;
1594
1595 my ($_gc_nr, $_gc_period);
1596
1597 # properties that we do not log:
1598 my %SKIP_PROP;
1599 BEGIN {
1600 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1601 svn:special svn:executable
1602 svn:entry:committed-rev
1603 svn:entry:last-author
1604 svn:entry:uuid
1605 svn:entry:committed-date/;
1606
1607 # some options are read globally, but can be overridden locally
1608 # per [svn-remote "..."] section. Command-line options will *NOT*
1609 # override options set in an [svn-remote "..."] section
1610 no strict 'refs';
1611 for my $option (qw/follow_parent no_metadata use_svm_props
1612 use_svnsync_props/) {
1613 my $key = $option;
1614 $key =~ tr/_//d;
1615 my $prop = "-$option";
1616 *$option = sub {
1617 my ($self) = @_;
1618 return $self->{$prop} if exists $self->{$prop};
1619 my $k = "svn-remote.$self->{repo_id}.$key";
1620 eval { command_oneline(qw/config --get/, $k) };
1621 if ($@) {
1622 $self->{$prop} = ${"Git::SVN::_$option"};
1623 } else {
1624 my $v = command_oneline(qw/config --bool/,$k);
1625 $self->{$prop} = $v eq 'false' ? 0 : 1;
1626 }
1627 return $self->{$prop};
1628 }
1629 }
1630 }
1631
1632
1633 my (%LOCKFILES, %INDEX_FILES);
1634 END {
1635 unlink keys %LOCKFILES if %LOCKFILES;
1636 unlink keys %INDEX_FILES if %INDEX_FILES;
1637 }
1638
1639 sub resolve_local_globs {
1640 my ($url, $fetch, $glob_spec) = @_;
1641 return unless defined $glob_spec;
1642 my $ref = $glob_spec->{ref};
1643 my $path = $glob_spec->{path};
1644 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
1645 next unless m#^refs/remotes/$ref->{regex}$#;
1646 my $p = $1;
1647 my $pathname = desanitize_refname($path->full_path($p));
1648 my $refname = desanitize_refname($ref->full_path($p));
1649 if (my $existing = $fetch->{$pathname}) {
1650 if ($existing ne $refname) {
1651 die "Refspec conflict:\n",
1652 "existing: refs/remotes/$existing\n",
1653 " globbed: refs/remotes/$refname\n";
1654 }
1655 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
1656 $u =~ s!^\Q$url\E(/|$)!! or die
1657 "refs/remotes/$refname: '$url' not found in '$u'\n";
1658 if ($pathname ne $u) {
1659 warn "W: Refspec glob conflict ",
1660 "(ref: refs/remotes/$refname):\n",
1661 "expected path: $pathname\n",
1662 " real path: $u\n",
1663 "Continuing ahead with $u\n";
1664 next;
1665 }
1666 } else {
1667 $fetch->{$pathname} = $refname;
1668 }
1669 }
1670 }
1671
1672 sub parse_revision_argument {
1673 my ($base, $head) = @_;
1674 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1675 return ($base, $head);
1676 }
1677 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1678 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1679 return ($head, $head) if ($::_revision eq 'HEAD');
1680 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1681 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1682 die "revision argument: $::_revision not understood by git-svn\n";
1683 }
1684
1685 sub fetch_all {
1686 my ($repo_id, $remotes) = @_;
1687 if (ref $repo_id) {
1688 my $gs = $repo_id;
1689 $repo_id = undef;
1690 $repo_id = $gs->{repo_id};
1691 }
1692 $remotes ||= read_all_remotes();
1693 my $remote = $remotes->{$repo_id} or
1694 die "[svn-remote \"$repo_id\"] unknown\n";
1695 my $fetch = $remote->{fetch};
1696 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1697 my (@gs, @globs);
1698 my $ra = Git::SVN::Ra->new($url);
1699 my $uuid = $ra->get_uuid;
1700 my $head = $ra->get_latest_revnum;
1701 $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] });
1702 my $base = defined $fetch ? $head : 0;
1703
1704 # read the max revs for wildcard expansion (branches/*, tags/*)
1705 foreach my $t (qw/branches tags/) {
1706 defined $remote->{$t} or next;
1707 push @globs, @{$remote->{$t}};
1708
1709 my $max_rev = eval { tmp_config(qw/--int --get/,
1710 "svn-remote.$repo_id.${t}-maxRev") };
1711 if (defined $max_rev && ($max_rev < $base)) {
1712 $base = $max_rev;
1713 } elsif (!defined $max_rev) {
1714 $base = 0;
1715 }
1716 }
1717
1718 if ($fetch) {
1719 foreach my $p (sort keys %$fetch) {
1720 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1721 my $lr = $gs->rev_map_max;
1722 if (defined $lr) {
1723 $base = $lr if ($lr < $base);
1724 }
1725 push @gs, $gs;
1726 }
1727 }
1728
1729 ($base, $head) = parse_revision_argument($base, $head);
1730 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1731 }
1732
1733 sub read_all_remotes {
1734 my $r = {};
1735 my $use_svm_props = eval { command_oneline(qw/config --bool
1736 svn.useSvmProps/) };
1737 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
1738 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1739 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*(.+)\s*$!) {
1740 my ($remote, $local_ref, $_remote_ref) = ($1, $2, $3);
1741 die("svn-remote.$remote: remote ref '$_remote_ref' "
1742 . "must start with 'refs/remotes/'\n")
1743 unless $_remote_ref =~ m{^refs/remotes/(.+)};
1744 my $remote_ref = $1;
1745 $local_ref =~ s{^/}{};
1746 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1747 $r->{$remote}->{svm} = {} if $use_svm_props;
1748 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
1749 $r->{$1}->{svm} = {};
1750 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1751 $r->{$1}->{url} = $2;
1752 } elsif (m!^(.+)\.(branches|tags)=
1753 (.*):refs/remotes/(.+)\s*$/!x) {
1754 my ($p, $g) = ($3, $4);
1755 my $rs = {
1756 t => $2,
1757 remote => $1,
1758 path => Git::SVN::GlobSpec->new($p),
1759 ref => Git::SVN::GlobSpec->new($g) };
1760 if (length($rs->{ref}->{right}) != 0) {
1761 die "The '*' glob character must be the last ",
1762 "character of '$g'\n";
1763 }
1764 push @{ $r->{$1}->{$2} }, $rs;
1765 }
1766 }
1767
1768 map {
1769 if (defined $r->{$_}->{svm}) {
1770 my $svm;
1771 eval {
1772 my $section = "svn-remote.$_";
1773 $svm = {
1774 source => tmp_config('--get',
1775 "$section.svm-source"),
1776 replace => tmp_config('--get',
1777 "$section.svm-replace"),
1778 }
1779 };
1780 $r->{$_}->{svm} = $svm;
1781 }
1782 } keys %$r;
1783
1784 $r;
1785 }
1786
1787 sub init_vars {
1788 $_gc_nr = $_gc_period = 1000;
1789 if (defined $_repack || defined $_repack_flags) {
1790 warn "Repack options are obsolete; they have no effect.\n";
1791 }
1792 }
1793
1794 sub verify_remotes_sanity {
1795 return unless -d $ENV{GIT_DIR};
1796 my %seen;
1797 foreach (command(qw/config -l/)) {
1798 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1799 if ($seen{$1}) {
1800 die "Remote ref refs/remote/$1 is tracked by",
1801 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1802 "Please resolve this ambiguity in ",
1803 "your git configuration file before ",
1804 "continuing\n";
1805 }
1806 $seen{$1} = $_;
1807 }
1808 }
1809 }
1810
1811 sub find_existing_remote {
1812 my ($url, $remotes) = @_;
1813 return undef if $no_reuse_existing;
1814 my $existing;
1815 foreach my $repo_id (keys %$remotes) {
1816 my $u = $remotes->{$repo_id}->{url} or next;
1817 next if $u ne $url;
1818 $existing = $repo_id;
1819 last;
1820 }
1821 $existing;
1822 }
1823
1824 sub init_remote_config {
1825 my ($self, $url, $no_write) = @_;
1826 $url =~ s!/+$!!; # strip trailing slash
1827 my $r = read_all_remotes();
1828 my $existing = find_existing_remote($url, $r);
1829 if ($existing) {
1830 unless ($no_write) {
1831 print STDERR "Using existing ",
1832 "[svn-remote \"$existing\"]\n";
1833 }
1834 $self->{repo_id} = $existing;
1835 } elsif ($_minimize_url) {
1836 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1837 $existing = find_existing_remote($min_url, $r);
1838 if ($existing) {
1839 unless ($no_write) {
1840 print STDERR "Using existing ",
1841 "[svn-remote \"$existing\"]\n";
1842 }
1843 $self->{repo_id} = $existing;
1844 }
1845 if ($min_url ne $url) {
1846 unless ($no_write) {
1847 print STDERR "Using higher level of URL: ",
1848 "$url => $min_url\n";
1849 }
1850 my $old_path = $self->{path};
1851 $self->{path} = $url;
1852 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1853 if (length $old_path) {
1854 $self->{path} .= "/$old_path";
1855 }
1856 $url = $min_url;
1857 }
1858 }
1859 my $orig_url;
1860 if (!$existing) {
1861 # verify that we aren't overwriting anything:
1862 $orig_url = eval {
1863 command_oneline('config', '--get',
1864 "svn-remote.$self->{repo_id}.url")
1865 };
1866 if ($orig_url && ($orig_url ne $url)) {
1867 die "svn-remote.$self->{repo_id}.url already set: ",
1868 "$orig_url\nwanted to set to: $url\n";
1869 }
1870 }
1871 my ($xrepo_id, $xpath) = find_ref($self->refname);
1872 if (defined $xpath) {
1873 die "svn-remote.$xrepo_id.fetch already set to track ",
1874 "$xpath:refs/remotes/", $self->refname, "\n";
1875 }
1876 unless ($no_write) {
1877 command_noisy('config',
1878 "svn-remote.$self->{repo_id}.url", $url);
1879 $self->{path} =~ s{^/}{};
1880 command_noisy('config', '--add',
1881 "svn-remote.$self->{repo_id}.fetch",
1882 "$self->{path}:".$self->refname);
1883 }
1884 $self->{url} = $url;
1885 }
1886
1887 sub find_by_url { # repos_root and, path are optional
1888 my ($class, $full_url, $repos_root, $path) = @_;
1889
1890 return undef unless defined $full_url;
1891 remove_username($full_url);
1892 remove_username($repos_root) if defined $repos_root;
1893 my $remotes = read_all_remotes();
1894 if (defined $full_url && defined $repos_root && !defined $path) {
1895 $path = $full_url;
1896 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1897 }
1898 foreach my $repo_id (keys %$remotes) {
1899 my $u = $remotes->{$repo_id}->{url} or next;
1900 remove_username($u);
1901 next if defined $repos_root && $repos_root ne $u;
1902
1903 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1904 foreach my $t (qw/branches tags/) {
1905 foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) {
1906 resolve_local_globs($u, $fetch, $globspec);
1907 }
1908 }
1909 my $p = $path;
1910 my $rwr = rewrite_root({repo_id => $repo_id});
1911 my $svm = $remotes->{$repo_id}->{svm}
1912 if defined $remotes->{$repo_id}->{svm};
1913 unless (defined $p) {
1914 $p = $full_url;
1915 my $z = $u;
1916 my $prefix = '';
1917 if ($rwr) {
1918 $z = $rwr;
1919 remove_username($z);
1920 } elsif (defined $svm) {
1921 $z = $svm->{source};
1922 $prefix = $svm->{replace};
1923 $prefix =~ s#^\Q$u\E(?:/|$)##;
1924 $prefix =~ s#/$##;
1925 }
1926 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
1927 }
1928 foreach my $f (keys %$fetch) {
1929 next if $f ne $p;
1930 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1931 }
1932 }
1933 undef;
1934 }
1935
1936 sub init {
1937 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1938 my $self = _new($class, $repo_id, $ref_id, $path);
1939 if (defined $url) {
1940 $self->init_remote_config($url, $no_write);
1941 }
1942 $self;
1943 }
1944
1945 sub find_ref {
1946 my ($ref_id) = @_;
1947 foreach (command(qw/config -l/)) {
1948 next unless m!^svn-remote\.(.+)\.fetch=
1949 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1950 my ($repo_id, $path, $ref) = ($1, $2, $3);
1951 if ($ref eq $ref_id) {
1952 $path = '' if ($path =~ m#^\./?#);
1953 return ($repo_id, $path);
1954 }
1955 }
1956 (undef, undef, undef);
1957 }
1958
1959 sub new {
1960 my ($class, $ref_id, $repo_id, $path) = @_;
1961 if (defined $ref_id && !defined $repo_id && !defined $path) {
1962 ($repo_id, $path) = find_ref($ref_id);
1963 if (!defined $repo_id) {
1964 die "Could not find a \"svn-remote.*.fetch\" key ",
1965 "in the repository configuration matching: ",
1966 "refs/remotes/$ref_id\n";
1967 }
1968 }
1969 my $self = _new($class, $repo_id, $ref_id, $path);
1970 if (!defined $self->{path} || !length $self->{path}) {
1971 my $fetch = command_oneline('config', '--get',
1972 "svn-remote.$repo_id.fetch",
1973 ":refs/remotes/$ref_id\$") or
1974 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1975 "\":refs/remotes/$ref_id\$\" in config\n";
1976 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1977 }
1978 $self->{url} = command_oneline('config', '--get',
1979 "svn-remote.$repo_id.url") or
1980 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1981 $self->rebuild;
1982 $self;
1983 }
1984
1985 sub refname {
1986 my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
1987
1988 # It cannot end with a slash /, we'll throw up on this because
1989 # SVN can't have directories with a slash in their name, either:
1990 if ($refname =~ m{/$}) {
1991 die "ref: '$refname' ends with a trailing slash, this is ",
1992 "not permitted by git nor Subversion\n";
1993 }
1994
1995 # It cannot have ASCII control character space, tilde ~, caret ^,
1996 # colon :, question-mark ?, asterisk *, space, or open bracket [
1997 # anywhere.
1998 #
1999 # Additionally, % must be escaped because it is used for escaping
2000 # and we want our escaped refname to be reversible
2001 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
2002
2003 # no slash-separated component can begin with a dot .
2004 # /.* becomes /%2E*
2005 $refname =~ s{/\.}{/%2E}g;
2006
2007 # It cannot have two consecutive dots .. anywhere
2008 # .. becomes %2E%2E
2009 $refname =~ s{\.\.}{%2E%2E}g;
2010
2011 return $refname;
2012 }
2013
2014 sub desanitize_refname {
2015 my ($refname) = @_;
2016 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
2017 return $refname;
2018 }
2019
2020 sub svm_uuid {
2021 my ($self) = @_;
2022 return $self->{svm}->{uuid} if $self->svm;
2023 $self->ra;
2024 unless ($self->{svm}) {
2025 die "SVM UUID not cached, and reading remotely failed\n";
2026 }
2027 $self->{svm}->{uuid};
2028 }
2029
2030 sub svm {
2031 my ($self) = @_;
2032 return $self->{svm} if $self->{svm};
2033 my $svm;
2034 # see if we have it in our config, first:
2035 eval {
2036 my $section = "svn-remote.$self->{repo_id}";
2037 $svm = {
2038 source => tmp_config('--get', "$section.svm-source"),
2039 uuid => tmp_config('--get', "$section.svm-uuid"),
2040 replace => tmp_config('--get', "$section.svm-replace"),
2041 }
2042 };
2043 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
2044 $self->{svm} = $svm;
2045 }
2046 $self->{svm};
2047 }
2048
2049 sub _set_svm_vars {
2050 my ($self, $ra) = @_;
2051 return $ra if $self->svm;
2052
2053 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
2054 "(svm:source, svm:uuid) ",
2055 "from the following URLs:\n" );
2056 sub read_svm_props {
2057 my ($self, $ra, $path, $r) = @_;
2058 my $props = ($ra->get_dir($path, $r))[2];
2059 my $src = $props->{'svm:source'};
2060 my $uuid = $props->{'svm:uuid'};
2061 return undef if (!$src || !$uuid);
2062
2063 chomp($src, $uuid);
2064
2065 $uuid =~ m{^[0-9a-f\-]{30,}$}i
2066 or die "doesn't look right - svm:uuid is '$uuid'\n";
2067
2068 # the '!' is used to mark the repos_root!/relative/path
2069 $src =~ s{/?!/?}{/};
2070 $src =~ s{/+$}{}; # no trailing slashes please
2071 # username is of no interest
2072 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
2073
2074 my $replace = $ra->{url};
2075 $replace .= "/$path" if length $path;
2076
2077 my $section = "svn-remote.$self->{repo_id}";
2078 tmp_config("$section.svm-source", $src);
2079 tmp_config("$section.svm-replace", $replace);
2080 tmp_config("$section.svm-uuid", $uuid);
2081 $self->{svm} = {
2082 source => $src,
2083 uuid => $uuid,
2084 replace => $replace
2085 };
2086 }
2087
2088 my $r = $ra->get_latest_revnum;
2089 my $path = $self->{path};
2090 my %tried;
2091 while (length $path) {
2092 unless ($tried{"$self->{url}/$path"}) {
2093 return $ra if $self->read_svm_props($ra, $path, $r);
2094 $tried{"$self->{url}/$path"} = 1;
2095 }
2096 $path =~ s#/?[^/]+$##;
2097 }
2098 die "Path: '$path' should be ''\n" if $path ne '';
2099 return $ra if $self->read_svm_props($ra, $path, $r);
2100 $tried{"$self->{url}/$path"} = 1;
2101
2102 if ($ra->{repos_root} eq $self->{url}) {
2103 die @err, (map { " $_\n" } keys %tried), "\n";
2104 }
2105
2106 # nope, make sure we're connected to the repository root:
2107 my $ok;
2108 my @tried_b;
2109 $path = $ra->{svn_path};
2110 $ra = Git::SVN::Ra->new($ra->{repos_root});
2111 while (length $path) {
2112 unless ($tried{"$ra->{url}/$path"}) {
2113 $ok = $self->read_svm_props($ra, $path, $r);
2114 last if $ok;
2115 $tried{"$ra->{url}/$path"} = 1;
2116 }
2117 $path =~ s#/?[^/]+$##;
2118 }
2119 die "Path: '$path' should be ''\n" if $path ne '';
2120 $ok ||= $self->read_svm_props($ra, $path, $r);
2121 $tried{"$ra->{url}/$path"} = 1;
2122 if (!$ok) {
2123 die @err, (map { " $_\n" } keys %tried), "\n";
2124 }
2125 Git::SVN::Ra->new($self->{url});
2126 }
2127
2128 sub svnsync {
2129 my ($self) = @_;
2130 return $self->{svnsync} if $self->{svnsync};
2131
2132 if ($self->no_metadata) {
2133 die "Can't have both 'noMetadata' and ",
2134 "'useSvnsyncProps' options set!\n";
2135 }
2136 if ($self->rewrite_root) {
2137 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
2138 "options set!\n";
2139 }
2140
2141 my $svnsync;
2142 # see if we have it in our config, first:
2143 eval {
2144 my $section = "svn-remote.$self->{repo_id}";
2145
2146 my $url = tmp_config('--get', "$section.svnsync-url");
2147 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
2148 die "doesn't look right - svn:sync-from-url is '$url'\n";
2149
2150 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
2151 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
2152 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
2153
2154 $svnsync = { url => $url, uuid => $uuid }
2155 };
2156 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
2157 return $self->{svnsync} = $svnsync;
2158 }
2159
2160 my $err = "useSvnsyncProps set, but failed to read " .
2161 "svnsync property: svn:sync-from-";
2162 my $rp = $self->ra->rev_proplist(0);
2163
2164 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
2165 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
2166 die "doesn't look right - svn:sync-from-url is '$url'\n";
2167
2168 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
2169 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
2170 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
2171
2172 my $section = "svn-remote.$self->{repo_id}";
2173 tmp_config('--add', "$section.svnsync-uuid", $uuid);
2174 tmp_config('--add', "$section.svnsync-url", $url);
2175 return $self->{svnsync} = { url => $url, uuid => $uuid };
2176 }
2177
2178 # this allows us to memoize our SVN::Ra UUID locally and avoid a
2179 # remote lookup (useful for 'git svn log').
2180 sub ra_uuid {
2181 my ($self) = @_;
2182 unless ($self->{ra_uuid}) {
2183 my $key = "svn-remote.$self->{repo_id}.uuid";
2184 my $uuid = eval { tmp_config('--get', $key) };
2185 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
2186 $self->{ra_uuid} = $uuid;
2187 } else {
2188 die "ra_uuid called without URL\n" unless $self->{url};
2189 $self->{ra_uuid} = $self->ra->get_uuid;
2190 tmp_config('--add', $key, $self->{ra_uuid});
2191 }
2192 }
2193 $self->{ra_uuid};
2194 }
2195
2196 sub _set_repos_root {
2197 my ($self, $repos_root) = @_;
2198 my $k = "svn-remote.$self->{repo_id}.reposRoot";
2199 $repos_root ||= $self->ra->{repos_root};
2200 tmp_config($k, $repos_root);
2201 $repos_root;
2202 }
2203
2204 sub repos_root {
2205 my ($self) = @_;
2206 my $k = "svn-remote.$self->{repo_id}.reposRoot";
2207 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
2208 }
2209
2210 sub ra {
2211 my ($self) = shift;
2212 my $ra = Git::SVN::Ra->new($self->{url});
2213 $self->_set_repos_root($ra->{repos_root});
2214 if ($self->use_svm_props && !$self->{svm}) {
2215 if ($self->no_metadata) {
2216 die "Can't have both 'noMetadata' and ",
2217 "'useSvmProps' options set!\n";
2218 } elsif ($self->use_svnsync_props) {
2219 die "Can't have both 'useSvnsyncProps' and ",
2220 "'useSvmProps' options set!\n";
2221 }
2222 $ra = $self->_set_svm_vars($ra);
2223 $self->{-want_revprops} = 1;
2224 }
2225 $ra;
2226 }
2227
2228 # prop_walk(PATH, REV, SUB)
2229 # -------------------------
2230 # Recursively traverse PATH at revision REV and invoke SUB for each
2231 # directory that contains a SVN property. SUB will be invoked as
2232 # follows: &SUB(gs, path, props); where `gs' is this instance of
2233 # Git::SVN, `path' the path to the directory where the properties
2234 # `props' were found. The `path' will be relative to point of checkout,
2235 # that is, if url://repo/trunk is the current Git branch, and that
2236 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
2237 # as `path' (note the trailing `/').
2238 sub prop_walk {
2239 my ($self, $path, $rev, $sub) = @_;
2240
2241 $path =~ s#^/##;
2242 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
2243 $path =~ s#^/*#/#g;
2244 my $p = $path;
2245 # Strip the irrelevant part of the path.
2246 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
2247 # Ensure the path is terminated by a `/'.
2248 $p =~ s#/*$#/#;
2249
2250 # The properties contain all the internal SVN stuff nobody
2251 # (usually) cares about.
2252 my $interesting_props = 0;
2253 foreach (keys %{$props}) {
2254 # If it doesn't start with `svn:', it must be a
2255 # user-defined property.
2256 ++$interesting_props and next if $_ !~ /^svn:/;
2257 # FIXME: Fragile, if SVN adds new public properties,
2258 # this needs to be updated.
2259 ++$interesting_props if /^svn:(?:ignore|keywords|executable
2260 |eol-style|mime-type
2261 |externals|needs-lock)$/x;
2262 }
2263 &$sub($self, $p, $props) if $interesting_props;
2264
2265 foreach (sort keys %$dirent) {
2266 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
2267 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
2268 }
2269 }
2270
2271 sub last_rev { ($_[0]->last_rev_commit)[0] }
2272 sub last_commit { ($_[0]->last_rev_commit)[1] }
2273
2274 # returns the newest SVN revision number and newest commit SHA1
2275 sub last_rev_commit {
2276 my ($self) = @_;
2277 if (defined $self->{last_rev} && defined $self->{last_commit}) {
2278 return ($self->{last_rev}, $self->{last_commit});
2279 }
2280 my $c = ::verify_ref($self->refname.'^0');
2281 if ($c && !$self->use_svm_props && !$self->no_metadata) {
2282 my $rev = (::cmt_metadata($c))[1];
2283 if (defined $rev) {
2284 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
2285 return ($rev, $c);
2286 }
2287 }
2288 my $map_path = $self->map_path;
2289 unless (-e $map_path) {
2290 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
2291 return (undef, undef);
2292 }
2293 my ($rev, $commit) = $self->rev_map_max(1);
2294 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
2295 return ($rev, $commit);
2296 }
2297
2298 sub get_fetch_range {
2299 my ($self, $min, $max) = @_;
2300 $max ||= $self->ra->get_latest_revnum;
2301 $min ||= $self->rev_map_max;
2302 (++$min, $max);
2303 }
2304
2305 sub tmp_config {
2306 my (@args) = @_;
2307 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
2308 my $config = "$ENV{GIT_DIR}/svn/.metadata";
2309 if (! -f $config && -f $old_def_config) {
2310 rename $old_def_config, $config or
2311 die "Failed rename $old_def_config => $config: $!\n";
2312 }
2313 my $old_config = $ENV{GIT_CONFIG};
2314 $ENV{GIT_CONFIG} = $config;
2315 $@ = undef;
2316 my @ret = eval {
2317 unless (-f $config) {
2318 mkfile($config);
2319 open my $fh, '>', $config or
2320 die "Can't open $config: $!\n";
2321 print $fh "; This file is used internally by ",
2322 "git-svn\n" or die
2323 "Couldn't write to $config: $!\n";
2324 print $fh "; You should not have to edit it\n" or
2325 die "Couldn't write to $config: $!\n";
2326 close $fh or die "Couldn't close $config: $!\n";
2327 }
2328 command('config', @args);
2329 };
2330 my $err = $@;
2331 if (defined $old_config) {
2332 $ENV{GIT_CONFIG} = $old_config;
2333 } else {
2334 delete $ENV{GIT_CONFIG};
2335 }
2336 die $err if $err;
2337 wantarray ? @ret : $ret[0];
2338 }
2339
2340 sub tmp_index_do {
2341 my ($self, $sub) = @_;
2342 my $old_index = $ENV{GIT_INDEX_FILE};
2343 $ENV{GIT_INDEX_FILE} = $self->{index};
2344 $@ = undef;
2345 my @ret = eval {
2346 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2347 mkpath([$dir]) unless -d $dir;
2348 &$sub;
2349 };
2350 my $err = $@;
2351 if (defined $old_index) {
2352 $ENV{GIT_INDEX_FILE} = $old_index;
2353 } else {
2354 delete $ENV{GIT_INDEX_FILE};
2355 }
2356 die $err if $err;
2357 wantarray ? @ret : $ret[0];
2358 }
2359
2360 sub assert_index_clean {
2361 my ($self, $treeish) = @_;
2362
2363 $self->tmp_index_do(sub {
2364 command_noisy('read-tree', $treeish) unless -e $self->{index};
2365 my $x = command_oneline('write-tree');
2366 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2367 /^tree ($::sha1)/mo);
2368 return if $y eq $x;
2369
2370 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2371 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2372 command_noisy('read-tree', $treeish);
2373 $x = command_oneline('write-tree');
2374 if ($y ne $x) {
2375 ::fatal "trees ($treeish) $y != $x\n",
2376 "Something is seriously wrong...";
2377 }
2378 });
2379 }
2380
2381 sub get_commit_parents {
2382 my ($self, $log_entry) = @_;
2383 my (%seen, @ret, @tmp);
2384 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2385 if (my $ip = $self->{inject_parents}) {
2386 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2387 push @tmp, $commit;
2388 }
2389 }
2390 if (my $cur = ::verify_ref($self->refname.'^0')) {
2391 push @tmp, $cur;
2392 }
2393 if (my $ipd = $self->{inject_parents_dcommit}) {
2394 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2395 push @tmp, @$commit;
2396 }
2397 }
2398 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2399 while (my $p = shift @tmp) {
2400 next if $seen{$p};
2401 $seen{$p} = 1;
2402 push @ret, $p;
2403 # MAXPARENT is defined to 16 in commit-tree.c:
2404 last if @ret >= 16;
2405 }
2406 if (@tmp) {
2407 die "r$log_entry->{revision}: No room for parents:\n\t",
2408 join("\n\t", @tmp), "\n";
2409 }
2410 @ret;
2411 }
2412
2413 sub rewrite_root {
2414 my ($self) = @_;
2415 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2416 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2417 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2418 if ($rwr) {
2419 $rwr =~ s#/+$##;
2420 if ($rwr !~ m#^[a-z\+]+://#) {
2421 die "$rwr is not a valid URL (key: $k)\n";
2422 }
2423 }
2424 $self->{-rewrite_root} = $rwr;
2425 }
2426
2427 sub metadata_url {
2428 my ($self) = @_;
2429 ($self->rewrite_root || $self->{url}) .
2430 (length $self->{path} ? '/' . $self->{path} : '');
2431 }
2432
2433 sub full_url {
2434 my ($self) = @_;
2435 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2436 }
2437
2438
2439 sub set_commit_header_env {
2440 my ($log_entry) = @_;
2441 my %env;
2442 foreach my $ned (qw/NAME EMAIL DATE/) {
2443 foreach my $ac (qw/AUTHOR COMMITTER/) {
2444 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2445 }
2446 }
2447
2448 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2449 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2450 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2451
2452 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2453 ? $log_entry->{commit_name}
2454 : $log_entry->{name};
2455 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2456 ? $log_entry->{commit_email}
2457 : $log_entry->{email};
2458 \%env;
2459 }
2460
2461 sub restore_commit_header_env {
2462 my ($env) = @_;
2463 foreach my $ned (qw/NAME EMAIL DATE/) {
2464 foreach my $ac (qw/AUTHOR COMMITTER/) {
2465 my $k = "GIT_${ac}_${ned}";
2466 if (defined $env->{$k}) {
2467 $ENV{$k} = $env->{$k};
2468 } else {
2469 delete $ENV{$k};
2470 }
2471 }
2472 }
2473 }
2474
2475 sub gc {
2476 command_noisy('gc', '--auto');
2477 };
2478
2479 sub do_git_commit {
2480 my ($self, $log_entry) = @_;
2481 my $lr = $self->last_rev;
2482 if (defined $lr && $lr >= $log_entry->{revision}) {
2483 die "Last fetched revision of ", $self->refname,
2484 " was r$lr, but we are about to fetch: ",
2485 "r$log_entry->{revision}!\n";
2486 }
2487 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2488 croak "$log_entry->{revision} = $c already exists! ",
2489 "Why are we refetching it?\n";
2490 }
2491 my $old_env = set_commit_header_env($log_entry);
2492 my $tree = $log_entry->{tree};
2493 if (!defined $tree) {
2494 $tree = $self->tmp_index_do(sub {
2495 command_oneline('write-tree') });
2496 }
2497 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2498
2499 my @exec = ('git', 'commit-tree', $tree);
2500 foreach ($self->get_commit_parents($log_entry)) {
2501 push @exec, '-p', $_;
2502 }
2503 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2504 or croak $!;
2505 binmode $msg_fh;
2506
2507 # we always get UTF-8 from SVN, but we may want our commits in
2508 # a different encoding.
2509 if (my $enc = Git::config('i18n.commitencoding')) {
2510 require Encode;
2511 Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
2512 }
2513 print $msg_fh $log_entry->{log} or croak $!;
2514 restore_commit_header_env($old_env);
2515 unless ($self->no_metadata) {
2516 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2517 or croak $!;
2518 }
2519 $msg_fh->flush == 0 or croak $!;
2520 close $msg_fh or croak $!;
2521 chomp(my $commit = do { local $/; <$out_fh> });
2522 close $out_fh or croak $!;
2523 waitpid $pid, 0;
2524 croak $? if $?;
2525 if ($commit !~ /^$::sha1$/o) {
2526 die "Failed to commit, invalid sha1: $commit\n";
2527 }
2528
2529 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2530
2531 $self->{last_rev} = $log_entry->{revision};
2532 $self->{last_commit} = $commit;
2533 print "r$log_entry->{revision}" unless $::_q > 1;
2534 if (defined $log_entry->{svm_revision}) {
2535 print " (\@$log_entry->{svm_revision})" unless $::_q > 1;
2536 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2537 0, $self->svm_uuid);
2538 }
2539 print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
2540 if (--$_gc_nr == 0) {
2541 $_gc_nr = $_gc_period;
2542 gc();
2543 }
2544 return $commit;
2545 }
2546
2547 sub match_paths {
2548 my ($self, $paths, $r) = @_;
2549 return 1 if $self->{path} eq '';
2550 if (my $path = $paths->{"/$self->{path}"}) {
2551 return ($path->{action} eq 'D') ? 0 : 1;
2552 }
2553 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2554 if (grep /$self->{path_regex}/, keys %$paths) {
2555 return 1;
2556 }
2557 my $c = '';
2558 foreach (split m#/#, $self->{path}) {
2559 $c .= "/$_";
2560 next unless ($paths->{$c} &&
2561 ($paths->{$c}->{action} =~ /^[AR]$/));
2562 if ($self->ra->check_path($self->{path}, $r) ==
2563 $SVN::Node::dir) {
2564 return 1;
2565 }
2566 }
2567 return 0;
2568 }
2569
2570 sub find_parent_branch {
2571 my ($self, $paths, $rev) = @_;
2572 return undef unless $self->follow_parent;
2573 unless (defined $paths) {
2574 my $err_handler = $SVN::Error::handler;
2575 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2576 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1,
2577 sub { $paths = $_[0] });
2578 $SVN::Error::handler = $err_handler;
2579 }
2580 return undef unless defined $paths;
2581
2582 # look for a parent from another branch:
2583 my @b_path_components = split m#/#, $self->{path};
2584 my @a_path_components;
2585 my $i;
2586 while (@b_path_components) {
2587 $i = $paths->{'/'.join('/', @b_path_components)};
2588 last if $i && defined $i->{copyfrom_path};
2589 unshift(@a_path_components, pop(@b_path_components));
2590 }
2591 return undef unless defined $i && defined $i->{copyfrom_path};
2592 my $branch_from = $i->{copyfrom_path};
2593 if (@a_path_components) {
2594 print STDERR "branch_from: $branch_from => ";
2595 $branch_from .= '/'.join('/', @a_path_components);
2596 print STDERR $branch_from, "\n";
2597 }
2598 my $r = $i->{copyfrom_rev};
2599 my $repos_root = $self->ra->{repos_root};
2600 my $url = $self->ra->{url};
2601 my $new_url = $url . $branch_from;
2602 print STDERR "Found possible branch point: ",
2603 "$new_url => ", $self->full_url, ", $r\n";
2604 $branch_from =~ s#^/##;
2605 my $gs = $self->other_gs($new_url, $url,
2606 $branch_from, $r, $self->{ref_id});
2607 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2608 {
2609 my ($base, $head);
2610 if (!defined $r0 || !defined $parent) {
2611 ($base, $head) = parse_revision_argument(0, $r);
2612 } else {
2613 if ($r0 < $r) {
2614 $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
2615 0, 1, sub { $base = $_[1] - 1 });
2616 }
2617 }
2618 if (defined $base && $base <= $r) {
2619 $gs->fetch($base, $r);
2620 }
2621 ($r0, $parent) = $gs->find_rev_before($r, 1);
2622 }
2623 if (defined $r0 && defined $parent) {
2624 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
2625 my $ed;
2626 if ($self->ra->can_do_switch) {
2627 $self->assert_index_clean($parent);
2628 print STDERR "Following parent with do_switch\n";
2629 # do_switch works with svn/trunk >= r22312, but that
2630 # is not included with SVN 1.4.3 (the latest version
2631 # at the moment), so we can't rely on it
2632 $self->{last_rev} = $r0;
2633 $self->{last_commit} = $parent;
2634 $ed = SVN::Git::Fetcher->new($self, $gs->{path});
2635 $gs->ra->gs_do_switch($r0, $rev, $gs,
2636 $self->full_url, $ed)
2637 or die "SVN connection failed somewhere...\n";
2638 } elsif ($self->ra->trees_match($new_url, $r0,
2639 $self->full_url, $rev)) {
2640 print STDERR "Trees match:\n",
2641 " $new_url\@$r0\n",
2642 " ${\$self->full_url}\@$rev\n",
2643 "Following parent with no changes\n";
2644 $self->tmp_index_do(sub {
2645 command_noisy('read-tree', $parent);
2646 });
2647 $self->{last_commit} = $parent;
2648 } else {
2649 print STDERR "Following parent with do_update\n";
2650 $ed = SVN::Git::Fetcher->new($self);
2651 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2652 or die "SVN connection failed somewhere...\n";
2653 }
2654 print STDERR "Successfully followed parent\n";
2655 return $self->make_log_entry($rev, [$parent], $ed);
2656 }
2657 return undef;
2658 }
2659
2660 sub do_fetch {
2661 my ($self, $paths, $rev) = @_;
2662 my $ed;
2663 my ($last_rev, @parents);
2664 if (my $lc = $self->last_commit) {
2665 # we can have a branch that was deleted, then re-added
2666 # under the same name but copied from another path, in
2667 # which case we'll have multiple parents (we don't
2668 # want to break the original ref, nor lose copypath info):
2669 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2670 push @{$log_entry->{parents}}, $lc;
2671 return $log_entry;
2672 }
2673 $ed = SVN::Git::Fetcher->new($self);
2674 $last_rev = $self->{last_rev};
2675 $ed->{c} = $lc;
2676 @parents = ($lc);
2677 } else {
2678 $last_rev = $rev;
2679 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2680 return $log_entry;
2681 }
2682 $ed = SVN::Git::Fetcher->new($self);
2683 }
2684 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2685 die "SVN connection failed somewhere...\n";
2686 }
2687 $self->make_log_entry($rev, \@parents, $ed);
2688 }
2689
2690 sub get_untracked {
2691 my ($self, $ed) = @_;
2692 my @out;
2693 my $h = $ed->{empty};
2694 foreach (sort keys %$h) {
2695 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2696 push @out, " $act: " . uri_encode($_);
2697 warn "W: $act: $_\n";
2698 }
2699 foreach my $t (qw/dir_prop file_prop/) {
2700 $h = $ed->{$t} or next;
2701 foreach my $path (sort keys %$h) {
2702 my $ppath = $path eq '' ? '.' : $path;
2703 foreach my $prop (sort keys %{$h->{$path}}) {
2704 next if $SKIP_PROP{$prop};
2705 my $v = $h->{$path}->{$prop};
2706 my $t_ppath_prop = "$t: " .
2707 uri_encode($ppath) . ' ' .
2708 uri_encode($prop);
2709 if (defined $v) {
2710 push @out, " +$t_ppath_prop " .
2711 uri_encode($v);
2712 } else {
2713 push @out, " -$t_ppath_prop";
2714 }
2715 }
2716 }
2717 }
2718 foreach my $t (qw/absent_file absent_directory/) {
2719 $h = $ed->{$t} or next;
2720 foreach my $parent (sort keys %$h) {
2721 foreach my $path (sort @{$h->{$parent}}) {
2722 push @out, " $t: " .
2723 uri_encode("$parent/$path");
2724 warn "W: $t: $parent/$path ",
2725 "Insufficient permissions?\n";
2726 }
2727 }
2728 }
2729 \@out;
2730 }
2731
2732 # parse_svn_date(DATE)
2733 # --------------------
2734 # Given a date (in UTC) from Subversion, return a string in the format
2735 # "<TZ Offset> <local date/time>" that Git will use.
2736 #
2737 # By default the parsed date will be in UTC; if $Git::SVN::_localtime
2738 # is true we'll convert it to the local timezone instead.
2739 sub parse_svn_date {
2740 my $date = shift || return '+0000 1970-01-01 00:00:00';
2741 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2742 (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
2743 croak "Unable to parse date: $date\n";
2744 my $parsed_date; # Set next.
2745
2746 if ($Git::SVN::_localtime) {
2747 # Translate the Subversion datetime to an epoch time.
2748 # Begin by switching ourselves to $date's timezone, UTC.
2749 my $old_env_TZ = $ENV{TZ};
2750 $ENV{TZ} = 'UTC';
2751
2752 my $epoch_in_UTC =
2753 POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
2754
2755 # Determine our local timezone (including DST) at the
2756 # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
2757 # value of TZ, if any, at the time we were run.
2758 if (defined $Git::SVN::Log::TZ) {
2759 $ENV{TZ} = $Git::SVN::Log::TZ;
2760 } else {
2761 delete $ENV{TZ};
2762 }
2763
2764 my $our_TZ =
2765 POSIX::strftime('%Z', $S, $M, $H, $d, $m - 1, $Y - 1900);
2766
2767 # This converts $epoch_in_UTC into our local timezone.
2768 my ($sec, $min, $hour, $mday, $mon, $year,
2769 $wday, $yday, $isdst) = localtime($epoch_in_UTC);
2770
2771 $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
2772 $our_TZ, $year + 1900, $mon + 1,
2773 $mday, $hour, $min, $sec);
2774
2775 # Reset us to the timezone in effect when we entered
2776 # this routine.
2777 if (defined $old_env_TZ) {
2778 $ENV{TZ} = $old_env_TZ;
2779 } else {
2780 delete $ENV{TZ};
2781 }
2782 } else {
2783 $parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
2784 }
2785
2786 return $parsed_date;
2787 }
2788
2789 sub other_gs {
2790 my ($self, $new_url, $url,
2791 $branch_from, $r, $old_ref_id) = @_;
2792 my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
2793 unless ($gs) {
2794 my $ref_id = $old_ref_id;
2795 $ref_id =~ s/\@\d+$//;
2796 $ref_id .= "\@$r";
2797 # just grow a tail if we're not unique enough :x
2798 $ref_id .= '-' while find_ref($ref_id);
2799 print STDERR "Initializing parent: $ref_id\n";
2800 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2801 if ($u =~ s#^\Q$url\E(/|$)##) {
2802 $p = $u;
2803 $u = $url;
2804 $repo_id = $self->{repo_id};
2805 }
2806 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2807 }
2808 $gs
2809 }
2810
2811 sub call_authors_prog {
2812 my ($orig_author) = @_;
2813 my $author = `$::_authors_prog $orig_author`;
2814 if ($? != 0) {
2815 die "$::_authors_prog failed with exit code $?\n"
2816 }
2817 if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) {
2818 my ($name, $email) = ($1, $2);
2819 $email = undef if length $2 == 0;
2820 return [$name, $email];
2821 } else {
2822 die "Author: $orig_author: $::_authors_prog returned "
2823 . "invalid author format: $author\n";
2824 }
2825 }
2826
2827 sub check_author {
2828 my ($author) = @_;
2829 if (!defined $author || length $author == 0) {
2830 $author = '(no author)';
2831 }
2832 if (!defined $::users{$author}) {
2833 if (defined $::_authors_prog) {
2834 $::users{$author} = call_authors_prog($author);
2835 } elsif (defined $::_authors) {
2836 die "Author: $author not defined in $::_authors file\n";
2837 }
2838 }
2839 $author;
2840 }
2841
2842 sub make_log_entry {
2843 my ($self, $rev, $parents, $ed) = @_;
2844 my $untracked = $self->get_untracked($ed);
2845
2846 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
2847 print $un "r$rev\n" or croak $!;
2848 print $un $_, "\n" foreach @$untracked;
2849 my %log_entry = ( parents => $parents || [], revision => $rev,
2850 log => '');
2851
2852 my $headrev;
2853 my $logged = delete $self->{logged_rev_props};
2854 if (!$logged || $self->{-want_revprops}) {
2855 my $rp = $self->ra->rev_proplist($rev);
2856 foreach (sort keys %$rp) {
2857 my $v = $rp->{$_};
2858 if (/^svn:(author|date|log)$/) {
2859 $log_entry{$1} = $v;
2860 } elsif ($_ eq 'svm:headrev') {
2861 $headrev = $v;
2862 } else {
2863 print $un " rev_prop: ", uri_encode($_), ' ',
2864 uri_encode($v), "\n";
2865 }
2866 }
2867 } else {
2868 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
2869 }
2870 close $un or croak $!;
2871
2872 $log_entry{date} = parse_svn_date($log_entry{date});
2873 $log_entry{log} .= "\n";
2874 my $author = $log_entry{author} = check_author($log_entry{author});
2875 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
2876 : ($author, undef);
2877
2878 my ($commit_name, $commit_email) = ($name, $email);
2879 if ($_use_log_author) {
2880 my $name_field;
2881 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
2882 $name_field = $1;
2883 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
2884 $name_field = $1;
2885 }
2886 if (!defined $name_field) {
2887 if (!defined $email) {
2888 $email = $name;
2889 }
2890 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
2891 ($name, $email) = ($1, $2);
2892 } elsif ($name_field =~ /(.*)@/) {
2893 ($name, $email) = ($1, $name_field);
2894 } else {
2895 ($name, $email) = ($name_field, $name_field);
2896 }
2897 }
2898 if (defined $headrev && $self->use_svm_props) {
2899 if ($self->rewrite_root) {
2900 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
2901 "options set!\n";
2902 }
2903 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i;
2904 # we don't want "SVM: initializing mirror for junk" ...
2905 return undef if $r == 0;
2906 my $svm = $self->svm;
2907 if ($uuid ne $svm->{uuid}) {
2908 die "UUID mismatch on SVM path:\n",
2909 "expected: $svm->{uuid}\n",
2910 " got: $uuid\n";
2911 }
2912 my $full_url = $self->full_url;
2913 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
2914 die "Failed to replace '$svm->{replace}' with ",
2915 "'$svm->{source}' in $full_url\n";
2916 # throw away username for storing in records
2917 remove_username($full_url);
2918 $log_entry{metadata} = "$full_url\@$r $uuid";
2919 $log_entry{svm_revision} = $r;
2920 $email ||= "$author\@$uuid";
2921 $commit_email ||= "$author\@$uuid";
2922 } elsif ($self->use_svnsync_props) {
2923 my $full_url = $self->svnsync->{url};
2924 $full_url .= "/$self->{path}" if length $self->{path};
2925 remove_username($full_url);
2926 my $uuid = $self->svnsync->{uuid};
2927 $log_entry{metadata} = "$full_url\@$rev $uuid";
2928 $email ||= "$author\@$uuid";
2929 $commit_email ||= "$author\@$uuid";
2930 } else {
2931 my $url = $self->metadata_url;
2932 remove_username($url);
2933 $log_entry{metadata} = "$url\@$rev " .
2934 $self->ra->get_uuid;
2935 $email ||= "$author\@" . $self->ra->get_uuid;
2936 $commit_email ||= "$author\@" . $self->ra->get_uuid;
2937 }
2938 $log_entry{name} = $name;
2939 $log_entry{email} = $email;
2940 $log_entry{commit_name} = $commit_name;
2941 $log_entry{commit_email} = $commit_email;
2942 \%log_entry;
2943 }
2944
2945 sub fetch {
2946 my ($self, $min_rev, $max_rev, @parents) = @_;
2947 my ($last_rev, $last_commit) = $self->last_rev_commit;
2948 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
2949 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
2950 }
2951
2952 sub set_tree_cb {
2953 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2954 $self->{inject_parents} = { $rev => $tree };
2955 $self->fetch(undef, undef);
2956 }
2957
2958 sub set_tree {
2959 my ($self, $tree) = (shift, shift);
2960 my $log_entry = ::get_commit_entry($tree);
2961 unless ($self->{last_rev}) {
2962 ::fatal("Must have an existing revision to commit");
2963 }
2964 my %ed_opts = ( r => $self->{last_rev},
2965 log => $log_entry->{log},
2966 ra => $self->ra,
2967 tree_a => $self->{last_commit},
2968 tree_b => $tree,
2969 editor_cb => sub {
2970 $self->set_tree_cb($log_entry, $tree, @_) },
2971 svn_path => $self->{path} );
2972 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
2973 print "No changes\nr$self->{last_rev} = $tree\n";
2974 }
2975 }
2976
2977 sub rebuild_from_rev_db {
2978 my ($self, $path) = @_;
2979 my $r = -1;
2980 open my $fh, '<', $path or croak "open: $!";
2981 binmode $fh or croak "binmode: $!";
2982 while (<$fh>) {
2983 length($_) == 41 or croak "inconsistent size in ($_) != 41";
2984 chomp($_);
2985 ++$r;
2986 next if $_ eq ('0' x 40);
2987 $self->rev_map_set($r, $_);
2988 print "r$r = $_\n";
2989 }
2990 close $fh or croak "close: $!";
2991 unlink $path or croak "unlink: $!";
2992 }
2993
2994 sub rebuild {
2995 my ($self) = @_;
2996 my $map_path = $self->map_path;
2997 my $partial = (-e $map_path && ! -z $map_path);
2998 return unless ::verify_ref($self->refname.'^0');
2999 if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
3000 my $rev_db = $self->rev_db_path;
3001 $self->rebuild_from_rev_db($rev_db);
3002 if ($self->use_svm_props) {
3003 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
3004 $self->rebuild_from_rev_db($svm_rev_db);
3005 }
3006 $self->unlink_rev_db_symlink;
3007 return;
3008 }
3009 print "Rebuilding $map_path ...\n" if (!$partial);
3010 my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
3011 (undef, undef));
3012 my ($log, $ctx) =
3013 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
3014 ($head ? "$head.." : "") . $self->refname,
3015 '--');
3016 my $metadata_url = $self->metadata_url;
3017 remove_username($metadata_url);
3018 my $svn_uuid = $self->ra_uuid;
3019 my $c;
3020 while (<$log>) {
3021 if ( m{^commit ($::sha1)$} ) {
3022 $c = $1;
3023 next;
3024 }
3025 next unless s{^\s*(git-svn-id:)}{$1};
3026 my ($url, $rev, $uuid) = ::extract_metadata($_);
3027 remove_username($url);
3028
3029 # ignore merges (from set-tree)
3030 next if (!defined $rev || !$uuid);
3031
3032 # if we merged or otherwise started elsewhere, this is
3033 # how we break out of it
3034 if (($uuid ne $svn_uuid) ||
3035 ($metadata_url && $url && ($url ne $metadata_url))) {
3036 next;
3037 }
3038 if ($partial && $head) {
3039 print "Partial-rebuilding $map_path ...\n";
3040 print "Currently at $base_rev = $head\n";
3041 $head = undef;
3042 }
3043
3044 $self->rev_map_set($rev, $c);
3045 print "r$rev = $c\n";
3046 }
3047 command_close_pipe($log, $ctx);
3048 print "Done rebuilding $map_path\n" if (!$partial || !$head);
3049 my $rev_db_path = $self->rev_db_path;
3050 if (-f $self->rev_db_path) {
3051 unlink $self->rev_db_path or croak "unlink: $!";
3052 }
3053 $self->unlink_rev_db_symlink;
3054 }
3055
3056 # rev_map:
3057 # Tie::File seems to be prone to offset errors if revisions get sparse,
3058 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
3059 # one of my favorite modules is out :< Next up would be one of the DBM
3060 # modules, but I'm not sure which is most portable...
3061 #
3062 # This is the replacement for the rev_db format, which was too big
3063 # and inefficient for large repositories with a lot of sparse history
3064 # (mainly tags)
3065 #
3066 # The format is this:
3067 # - 24 bytes for every record,
3068 # * 4 bytes for the integer representing an SVN revision number
3069 # * 20 bytes representing the sha1 of a git commit
3070 # - No empty padding records like the old format
3071 # (except the last record, which can be overwritten)
3072 # - new records are written append-only since SVN revision numbers
3073 # increase monotonically
3074 # - lookups on SVN revision number are done via a binary search
3075 # - Piping the file to xxd -c24 is a good way of dumping it for
3076 # viewing or editing (piped back through xxd -r), should the need
3077 # ever arise.
3078 # - The last record can be padding revision with an all-zero sha1
3079 # This is used to optimize fetch performance when using multiple
3080 # "fetch" directives in .git/config
3081 #
3082 # These files are disposable unless noMetadata or useSvmProps is set
3083
3084 sub _rev_map_set {
3085 my ($fh, $rev, $commit) = @_;
3086
3087 binmode $fh or croak "binmode: $!";
3088 my $size = (stat($fh))[7];
3089 ($size % 24) == 0 or croak "inconsistent size: $size";
3090
3091 my $wr_offset = 0;
3092 if ($size > 0) {
3093 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
3094 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
3095 $read == 24 or croak "read only $read bytes (!= 24)";
3096 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
3097 if ($last_commit eq ('0' x40)) {
3098 if ($size >= 48) {
3099 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
3100 $read = sysread($fh, $buf, 24) or
3101 croak "read: $!";
3102 $read == 24 or
3103 croak "read only $read bytes (!= 24)";
3104 ($last_rev, $last_commit) =
3105 unpack(rev_map_fmt, $buf);
3106 if ($last_commit eq ('0' x40)) {
3107 croak "inconsistent .rev_map\n";
3108 }
3109 }
3110 if ($last_rev >= $rev) {
3111 croak "last_rev is higher!: $last_rev >= $rev";
3112 }
3113 $wr_offset = -24;
3114 }
3115 }
3116 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
3117 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
3118 croak "write: $!";
3119 }
3120
3121 sub _rev_map_reset {
3122 my ($fh, $rev, $commit) = @_;
3123 my $c = _rev_map_get($fh, $rev);
3124 $c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n";
3125 my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!";
3126 truncate $fh, $offset or croak "truncate: $!";
3127 }
3128
3129 sub mkfile {
3130 my ($path) = @_;
3131 unless (-e $path) {
3132 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
3133 mkpath([$dir]) unless -d $dir;
3134 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
3135 close $fh or die "Couldn't close (create) $path: $!\n";
3136 }
3137 }
3138
3139 sub rev_map_set {
3140 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
3141 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
3142 my $db = $self->map_path($uuid);
3143 my $db_lock = "$db.lock";
3144 my $sig;
3145 $update_ref ||= 0;
3146 if ($update_ref) {
3147 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
3148 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
3149 }
3150 mkfile($db);
3151
3152 $LOCKFILES{$db_lock} = 1;
3153 my $sync;
3154 # both of these options make our .rev_db file very, very important
3155 # and we can't afford to lose it because rebuild() won't work
3156 if ($self->use_svm_props || $self->no_metadata) {
3157 $sync = 1;
3158 copy($db, $db_lock) or die "rev_map_set(@_): ",
3159 "Failed to copy: ",
3160 "$db => $db_lock ($!)\n";
3161 } else {
3162 rename $db, $db_lock or die "rev_map_set(@_): ",
3163 "Failed to rename: ",
3164 "$db => $db_lock ($!)\n";
3165 }
3166
3167 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
3168 or croak "Couldn't open $db_lock: $!\n";
3169 $update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) :
3170 _rev_map_set($fh, $rev, $commit);
3171 if ($sync) {
3172 $fh->flush or die "Couldn't flush $db_lock: $!\n";
3173 $fh->sync or die "Couldn't sync $db_lock: $!\n";
3174 }
3175 close $fh or croak $!;
3176 if ($update_ref) {
3177 $_head = $self;
3178 my $note = "";
3179 $note = " ($update_ref)" if ($update_ref !~ /^\d*$/);
3180 command_noisy('update-ref', '-m', "r$rev$note",
3181 $self->refname, $commit);
3182 }
3183 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
3184 "$db_lock => $db ($!)\n";
3185 delete $LOCKFILES{$db_lock};
3186 if ($update_ref) {
3187 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
3188 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
3189 kill $sig, $$ if defined $sig;
3190 }
3191 }
3192
3193 # If want_commit, this will return an array of (rev, commit) where
3194 # commit _must_ be a valid commit in the archive.
3195 # Otherwise, it'll return the max revision (whether or not the
3196 # commit is valid or just a 0x40 placeholder).
3197 sub rev_map_max {
3198 my ($self, $want_commit) = @_;
3199 $self->rebuild;
3200 my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
3201 $want_commit ? ($r, $c) : $r;
3202 }
3203
3204 sub rev_map_max_norebuild {
3205 my ($self, $want_commit) = @_;
3206 my $map_path = $self->map_path;
3207 stat $map_path or return $want_commit ? (0, undef) : 0;
3208 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
3209 binmode $fh or croak "binmode: $!";
3210 my $size = (stat($fh))[7];
3211 ($size % 24) == 0 or croak "inconsistent size: $size";
3212
3213 if ($size == 0) {
3214 close $fh or croak "close: $!";
3215 return $want_commit ? (0, undef) : 0;
3216 }
3217
3218 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
3219 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3220 my ($r, $c) = unpack(rev_map_fmt, $buf);
3221 if ($want_commit && $c eq ('0' x40)) {
3222 if ($size < 48) {
3223 return $want_commit ? (0, undef) : 0;
3224 }
3225 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
3226 sysread($fh, $buf, 24) == 24 or croak "read: $!";
3227 ($r, $c) = unpack(rev_map_fmt, $buf);
3228 if ($c eq ('0'x40)) {
3229 croak "Penultimate record is all-zeroes in $map_path";
3230 }
3231 }
3232 close $fh or croak "close: $!";
3233 $want_commit ? ($r, $c) : $r;
3234 }
3235
3236 sub rev_map_get {
3237 my ($self, $rev, $uuid) = @_;
3238 my $map_path = $self->map_path($uuid);
3239 return undef unless -e $map_path;
3240
3241 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
3242 my $c = _rev_map_get($fh, $rev);
3243 close($fh) or croak "close: $!";
3244 $c
3245 }
3246
3247 sub _rev_map_get {
3248 my ($fh, $rev) = @_;
3249
3250 binmode $fh or croak "binmode: $!";
3251 my $size = (stat($fh))[7];
3252 ($size % 24) == 0 or croak "inconsistent size: $size";
3253
3254 if ($size == 0) {
3255 return undef;
3256 }
3257
3258 my ($l, $u) = (0, $size - 24);
3259 my ($r, $c, $buf);
3260
3261 while ($l <= $u) {
3262 my $i = int(($l/24 + $u/24) / 2) * 24;
3263 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
3264 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3265 my ($r, $c) = unpack('NH40', $buf);
3266
3267 if ($r < $rev) {
3268 $l = $i + 24;
3269 } elsif ($r > $rev) {
3270 $u = $i - 24;
3271 } else { # $r == $rev
3272 return $c eq ('0' x 40) ? undef : $c;
3273 }
3274 }
3275 undef;
3276 }
3277
3278 # Finds the first svn revision that exists on (if $eq_ok is true) or
3279 # before $rev for the current branch. It will not search any lower
3280 # than $min_rev. Returns the git commit hash and svn revision number
3281 # if found, else (undef, undef).
3282 sub find_rev_before {
3283 my ($self, $rev, $eq_ok, $min_rev) = @_;
3284 --$rev unless $eq_ok;
3285 $min_rev ||= 1;
3286 my $max_rev = $self->rev_map_max;
3287 $rev = $max_rev if ($rev > $max_rev);
3288 while ($rev >= $min_rev) {
3289 if (my $c = $self->rev_map_get($rev)) {
3290 return ($rev, $c);
3291 }
3292 --$rev;
3293 }
3294 return (undef, undef);
3295 }
3296
3297 # Finds the first svn revision that exists on (if $eq_ok is true) or
3298 # after $rev for the current branch. It will not search any higher
3299 # than $max_rev. Returns the git commit hash and svn revision number
3300 # if found, else (undef, undef).
3301 sub find_rev_after {
3302 my ($self, $rev, $eq_ok, $max_rev) = @_;
3303 ++$rev unless $eq_ok;
3304 $max_rev ||= $self->rev_map_max;
3305 while ($rev <= $max_rev) {
3306 if (my $c = $self->rev_map_get($rev)) {
3307 return ($rev, $c);
3308 }
3309 ++$rev;
3310 }
3311 return (undef, undef);
3312 }
3313
3314 sub _new {
3315 my ($class, $repo_id, $ref_id, $path) = @_;
3316 unless (defined $repo_id && length $repo_id) {
3317 $repo_id = $Git::SVN::default_repo_id;
3318 }
3319 unless (defined $ref_id && length $ref_id) {
3320 $_[2] = $ref_id = $Git::SVN::default_ref_id;
3321 }
3322 $_[1] = $repo_id;
3323 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
3324 $_[3] = $path = '' unless (defined $path);
3325 mkpath(["$ENV{GIT_DIR}/svn"]);
3326 bless {
3327 ref_id => $ref_id, dir => $dir, index => "$dir/index",
3328 path => $path, config => "$ENV{GIT_DIR}/svn/config",
3329 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
3330 }
3331
3332 # for read-only access of old .rev_db formats
3333 sub unlink_rev_db_symlink {
3334 my ($self) = @_;
3335 my $link = $self->rev_db_path;
3336 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
3337 if (-l $link) {
3338 unlink $link or croak "unlink: $link failed!";
3339 }
3340 }
3341
3342 sub rev_db_path {
3343 my ($self, $uuid) = @_;
3344 my $db_path = $self->map_path($uuid);
3345 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
3346 or croak "map_path: $db_path does not contain '/.rev_map.' !";
3347 $db_path;
3348 }
3349
3350 # the new replacement for .rev_db
3351 sub map_path {
3352 my ($self, $uuid) = @_;
3353 $uuid ||= $self->ra_uuid;
3354 "$self->{map_root}.$uuid";
3355 }
3356
3357 sub uri_encode {
3358 my ($f) = @_;
3359 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
3360 $f
3361 }
3362
3363 sub remove_username {
3364 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
3365 }
3366
3367 package Git::SVN::Prompt;
3368 use strict;
3369 use warnings;
3370 require SVN::Core;
3371 use vars qw/$_no_auth_cache $_username/;
3372
3373 sub simple {
3374 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
3375 $may_save = undef if $_no_auth_cache;
3376 $default_username = $_username if defined $_username;
3377 if (defined $default_username && length $default_username) {
3378 if (defined $realm && length $realm) {
3379 print STDERR "Authentication realm: $realm\n";
3380 STDERR->flush;
3381 }
3382 $cred->username($default_username);
3383 } else {
3384 username($cred, $realm, $may_save, $pool);
3385 }
3386 $cred->password(_read_password("Password for '" .
3387 $cred->username . "': ", $realm));
3388 $cred->may_save($may_save);
3389 $SVN::_Core::SVN_NO_ERROR;
3390 }
3391
3392 sub ssl_server_trust {
3393 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
3394 $may_save = undef if $_no_auth_cache;
3395 print STDERR "Error validating server certificate for '$realm':\n";
3396 {
3397 no warnings 'once';
3398 # All variables SVN::Auth::SSL::* are used only once,
3399 # so we're shutting up Perl warnings about this.
3400 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
3401 print STDERR " - The certificate is not issued ",
3402 "by a trusted authority. Use the\n",
3403 " fingerprint to validate ",
3404 "the certificate manually!\n";
3405 }
3406 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
3407 print STDERR " - The certificate hostname ",
3408 "does not match.\n";
3409 }
3410 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
3411 print STDERR " - The certificate is not yet valid.\n";
3412 }
3413 if ($failures & $SVN::Auth::SSL::EXPIRED) {
3414 print STDERR " - The certificate has expired.\n";
3415 }
3416 if ($failures & $SVN::Auth::SSL::OTHER) {
3417 print STDERR " - The certificate has ",
3418 "an unknown error.\n";
3419 }
3420 } # no warnings 'once'
3421 printf STDERR
3422 "Certificate information:\n".
3423 " - Hostname: %s\n".
3424 " - Valid: from %s until %s\n".
3425 " - Issuer: %s\n".
3426 " - Fingerprint: %s\n",
3427 map $cert_info->$_, qw(hostname valid_from valid_until
3428 issuer_dname fingerprint);
3429 my $choice;
3430 prompt:
3431 print STDERR $may_save ?
3432 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
3433 "(R)eject or accept (t)emporarily? ";
3434 STDERR->flush;
3435 $choice = lc(substr(<STDIN> || 'R', 0, 1));
3436 if ($choice =~ /^t$/i) {
3437 $cred->may_save(undef);
3438 } elsif ($choice =~ /^r$/i) {
3439 return -1;
3440 } elsif ($may_save && $choice =~ /^p$/i) {
3441 $cred->may_save($may_save);
3442 } else {
3443 goto prompt;
3444 }
3445 $cred->accepted_failures($failures);
3446 $SVN::_Core::SVN_NO_ERROR;
3447 }
3448
3449 sub ssl_client_cert {
3450 my ($cred, $realm, $may_save, $pool) = @_;
3451 $may_save = undef if $_no_auth_cache;
3452 print STDERR "Client certificate filename: ";
3453 STDERR->flush;
3454 chomp(my $filename = <STDIN>);
3455 $cred->cert_file($filename);
3456 $cred->may_save($may_save);
3457 $SVN::_Core::SVN_NO_ERROR;
3458 }
3459
3460 sub ssl_client_cert_pw {
3461 my ($cred, $realm, $may_save, $pool) = @_;
3462 $may_save = undef if $_no_auth_cache;
3463 $cred->password(_read_password("Password: ", $realm));
3464 $cred->may_save($may_save);
3465 $SVN::_Core::SVN_NO_ERROR;
3466 }
3467
3468 sub username {
3469 my ($cred, $realm, $may_save, $pool) = @_;
3470 $may_save = undef if $_no_auth_cache;
3471 if (defined $realm && length $realm) {
3472 print STDERR "Authentication realm: $realm\n";
3473 }
3474 my $username;
3475 if (defined $_username) {
3476 $username = $_username;
3477 } else {
3478 print STDERR "Username: ";
3479 STDERR->flush;
3480 chomp($username = <STDIN>);
3481 }
3482 $cred->username($username);
3483 $cred->may_save($may_save);
3484 $SVN::_Core::SVN_NO_ERROR;
3485 }
3486
3487 sub _read_password {
3488 my ($prompt, $realm) = @_;
3489 print STDERR $prompt;
3490 STDERR->flush;
3491 require Term::ReadKey;
3492 Term::ReadKey::ReadMode('noecho');
3493 my $password = '';
3494 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3495 last if $key =~ /[\012\015]/; # \n\r
3496 $password .= $key;
3497 }
3498 Term::ReadKey::ReadMode('restore');
3499 print STDERR "\n";
3500 STDERR->flush;
3501 $password;
3502 }
3503
3504 package SVN::Git::Fetcher;
3505 use vars qw/@ISA/;
3506 use strict;
3507 use warnings;
3508 use Carp qw/croak/;
3509 use File::Temp qw/tempfile/;
3510 use IO::File qw//;
3511 use vars qw/$_ignore_regex/;
3512
3513 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3514 sub new {
3515 my ($class, $git_svn, $switch_path) = @_;
3516 my $self = SVN::Delta::Editor->new;
3517 bless $self, $class;
3518 if (exists $git_svn->{last_commit}) {
3519 $self->{c} = $git_svn->{last_commit};
3520 $self->{empty_symlinks} =
3521 _mark_empty_symlinks($git_svn, $switch_path);
3522 }
3523 $self->{ignore_regex} = eval { command_oneline('config', '--get',
3524 "svn-remote.$git_svn->{repo_id}.ignore-paths") };
3525 $self->{empty} = {};
3526 $self->{dir_prop} = {};
3527 $self->{file_prop} = {};
3528 $self->{absent_dir} = {};
3529 $self->{absent_file} = {};
3530 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3531 $self;
3532 }
3533
3534 # this uses the Ra object, so it must be called before do_{switch,update},
3535 # not inside them (when the Git::SVN::Fetcher object is passed) to
3536 # do_{switch,update}
3537 sub _mark_empty_symlinks {
3538 my ($git_svn, $switch_path) = @_;
3539 my $bool = Git::config_bool('svn.brokenSymlinkWorkaround');
3540 return {} if (!defined($bool)) || (defined($bool) && ! $bool);
3541
3542 my %ret;
3543 my ($rev, $cmt) = $git_svn->last_rev_commit;
3544 return {} unless ($rev && $cmt);
3545
3546 # allow the warning to be printed for each revision we fetch to
3547 # ensure the user sees it. The user can also disable the workaround
3548 # on the repository even while git svn is running and the next
3549 # revision fetched will skip this expensive function.
3550 my $printed_warning;
3551 chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`);
3552 my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt);
3553 local $/ = "\0";
3554 my $pfx = defined($switch_path) ? $switch_path : $git_svn->{path};
3555 $pfx .= '/' if length($pfx);
3556 while (<$ls>) {
3557 chomp;
3558 s/\A100644 blob $empty_blob\t//o or next;
3559 unless ($printed_warning) {
3560 print STDERR "Scanning for empty symlinks, ",
3561 "this may take a while if you have ",
3562 "many empty files\n",
3563 "You may disable this with `",
3564 "git config svn.brokenSymlinkWorkaround ",
3565 "false'.\n",
3566 "This may be done in a different ",
3567 "terminal without restarting ",
3568 "git svn\n";
3569 $printed_warning = 1;
3570 }
3571 my $path = $_;
3572 my (undef, $props) =
3573 $git_svn->ra->get_file($pfx.$path, $rev, undef);
3574 if ($props->{'svn:special'}) {
3575 $ret{$path} = 1;
3576 }
3577 }
3578 command_close_pipe($ls, $ctx);
3579 \%ret;
3580 }
3581
3582 # returns true if a given path is inside a ".git" directory
3583 sub in_dot_git {
3584 $_[0] =~ m{(?:^|/)\.git(?:/|$)};
3585 }
3586
3587 # return value: 0 -- don't ignore, 1 -- ignore
3588 sub is_path_ignored {
3589 my ($self, $path) = @_;
3590 return 1 if in_dot_git($path);
3591 return 1 if defined($self->{ignore_regex}) &&
3592 $path =~ m!$self->{ignore_regex}!;
3593 return 0 unless defined($_ignore_regex);
3594 return 1 if $path =~ m!$_ignore_regex!o;
3595 return 0;
3596 }
3597
3598 sub set_path_strip {
3599 my ($self, $path) = @_;
3600 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3601 }
3602
3603 sub open_root {
3604 { path => '' };
3605 }
3606
3607 sub open_directory {
3608 my ($self, $path, $pb, $rev) = @_;
3609 { path => $path };
3610 }
3611
3612 sub git_path {
3613 my ($self, $path) = @_;
3614 if ($self->{path_strip}) {
3615 $path =~ s!$self->{path_strip}!! or
3616 die "Failed to strip path '$path' ($self->{path_strip})\n";
3617 }
3618 $path;
3619 }
3620
3621 sub delete_entry {
3622 my ($self, $path, $rev, $pb) = @_;
3623 return undef if $self->is_path_ignored($path);
3624
3625 my $gpath = $self->git_path($path);
3626 return undef if ($gpath eq '');
3627
3628 # remove entire directories.
3629 my ($tree) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
3630 =~ /\A040000 tree ([a-f\d]{40})\t\Q$gpath\E\0/);
3631 if ($tree) {
3632 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3633 -r --name-only -z/,
3634 $tree);
3635 local $/ = "\0";
3636 while (<$ls>) {
3637 chomp;
3638 my $rmpath = "$gpath/$_";
3639 $self->{gii}->remove($rmpath);
3640 print "\tD\t$rmpath\n" unless $::_q;
3641 }
3642 print "\tD\t$gpath/\n" unless $::_q;
3643 command_close_pipe($ls, $ctx);
3644 $self->{empty}->{$path} = 0
3645 } else {
3646 $self->{gii}->remove($gpath);
3647 print "\tD\t$gpath\n" unless $::_q;
3648 }
3649 undef;
3650 }
3651
3652 sub open_file {
3653 my ($self, $path, $pb, $rev) = @_;
3654 my ($mode, $blob);
3655
3656 goto out if $self->is_path_ignored($path);
3657
3658 my $gpath = $self->git_path($path);
3659 ($mode, $blob) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
3660 =~ /\A(\d{6}) blob ([a-f\d]{40})\t\Q$gpath\E\0/);
3661 unless (defined $mode && defined $blob) {
3662 die "$path was not found in commit $self->{c} (r$rev)\n";
3663 }
3664 if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) {
3665 $mode = '120000';
3666 }
3667 out:
3668 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3669 pool => SVN::Pool->new, action => 'M' };
3670 }
3671
3672 sub add_file {
3673 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3674 my $mode;
3675
3676 if (!$self->is_path_ignored($path)) {
3677 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3678 delete $self->{empty}->{$dir};
3679 $mode = '100644';
3680 }
3681 { path => $path, mode_a => $mode, mode_b => $mode,
3682 pool => SVN::Pool->new, action => 'A' };
3683 }
3684
3685 sub add_directory {
3686 my ($self, $path, $cp_path, $cp_rev) = @_;
3687 goto out if $self->is_path_ignored($path);
3688 my $gpath = $self->git_path($path);
3689 if ($gpath eq '') {
3690 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3691 -r --name-only -z/,
3692 $self->{c});
3693 local $/ = "\0";
3694 while (<$ls>) {
3695 chomp;
3696 $self->{gii}->remove($_);
3697 print "\tD\t$_\n" unless $::_q;
3698 }
3699 command_close_pipe($ls, $ctx);
3700 $self->{empty}->{$path} = 0;
3701 }
3702 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3703 delete $self->{empty}->{$dir};
3704 $self->{empty}->{$path} = 1;
3705 out:
3706 { path => $path };
3707 }
3708
3709 sub change_dir_prop {
3710 my ($self, $db, $prop, $value) = @_;
3711 return undef if $self->is_path_ignored($db->{path});
3712 $self->{dir_prop}->{$db->{path}} ||= {};
3713 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
3714 undef;
3715 }
3716
3717 sub absent_directory {
3718 my ($self, $path, $pb) = @_;
3719 return undef if $self->is_path_ignored($path);
3720 $self->{absent_dir}->{$pb->{path}} ||= [];
3721 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
3722 undef;
3723 }
3724
3725 sub absent_file {
3726 my ($self, $path, $pb) = @_;
3727 return undef if $self->is_path_ignored($path);
3728 $self->{absent_file}->{$pb->{path}} ||= [];
3729 push @{$self->{absent_file}->{$pb->{path}}}, $path;
3730 undef;
3731 }
3732
3733 sub change_file_prop {
3734 my ($self, $fb, $prop, $value) = @_;
3735 return undef if $self->is_path_ignored($fb->{path});
3736 if ($prop eq 'svn:executable') {
3737 if ($fb->{mode_b} != 120000) {
3738 $fb->{mode_b} = defined $value ? 100755 : 100644;
3739 }
3740 } elsif ($prop eq 'svn:special') {
3741 $fb->{mode_b} = defined $value ? 120000 : 100644;
3742 } else {
3743 $self->{file_prop}->{$fb->{path}} ||= {};
3744 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
3745 }
3746 undef;
3747 }
3748
3749 sub apply_textdelta {
3750 my ($self, $fb, $exp) = @_;
3751 return undef if $self->is_path_ignored($fb->{path});
3752 my $fh = $::_repository->temp_acquire('svn_delta');
3753 # $fh gets auto-closed() by SVN::TxDelta::apply(),
3754 # (but $base does not,) so dup() it for reading in close_file
3755 open my $dup, '<&', $fh or croak $!;
3756 my $base = $::_repository->temp_acquire('git_blob');
3757
3758 if ($fb->{blob}) {
3759 my ($base_is_link, $size);
3760
3761 if ($fb->{mode_a} eq '120000' &&
3762 ! $self->{empty_symlinks}->{$fb->{path}}) {
3763 print $base 'link ' or die "print $!\n";
3764 $base_is_link = 1;
3765 }
3766 retry:
3767 $size = $::_repository->cat_blob($fb->{blob}, $base);
3768 die "Failed to read object $fb->{blob}" if ($size < 0);
3769
3770 if (defined $exp) {
3771 seek $base, 0, 0 or croak $!;
3772 my $got = ::md5sum($base);
3773 if ($got ne $exp) {
3774 my $err = "Checksum mismatch: ".
3775 "$fb->{path} $fb->{blob}\n" .
3776 "expected: $exp\n" .
3777 " got: $got\n";
3778 if ($base_is_link) {
3779 warn $err,
3780 "Retrying... (possibly ",
3781 "a bad symlink from SVN)\n";
3782 $::_repository->temp_reset($base);
3783 $base_is_link = 0;
3784 goto retry;
3785 }
3786 die $err;
3787 }
3788 }
3789 }
3790 seek $base, 0, 0 or croak $!;
3791 $fb->{fh} = $fh;
3792 $fb->{base} = $base;
3793 [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
3794 }
3795
3796 sub close_file {
3797 my ($self, $fb, $exp) = @_;
3798 return undef if $self->is_path_ignored($fb->{path});
3799
3800 my $hash;
3801 my $path = $self->git_path($fb->{path});
3802 if (my $fh = $fb->{fh}) {
3803 if (defined $exp) {
3804 seek($fh, 0, 0) or croak $!;
3805 my $got = ::md5sum($fh);
3806 if ($got ne $exp) {
3807 die "Checksum mismatch: $path\n",
3808 "expected: $exp\n got: $got\n";
3809 }
3810 }
3811 if ($fb->{mode_b} == 120000) {
3812 sysseek($fh, 0, 0) or croak $!;
3813 my $rd = sysread($fh, my $buf, 5);
3814
3815 if (!defined $rd) {
3816 croak "sysread: $!\n";
3817 } elsif ($rd == 0) {
3818 warn "$path has mode 120000",
3819 " but it points to nothing\n",
3820 "converting to an empty file with mode",
3821 " 100644\n";
3822 $fb->{mode_b} = '100644';
3823 } elsif ($buf ne 'link ') {
3824 warn "$path has mode 120000",
3825 " but is not a link\n";
3826 } else {
3827 my $tmp_fh = $::_repository->temp_acquire(
3828 'svn_hash');
3829 my $res;
3830 while ($res = sysread($fh, my $str, 1024)) {
3831 my $out = syswrite($tmp_fh, $str, $res);
3832 defined($out) && $out == $res
3833 or croak("write ",
3834 Git::temp_path($tmp_fh),
3835 ": $!\n");
3836 }
3837 defined $res or croak $!;
3838
3839 ($fh, $tmp_fh) = ($tmp_fh, $fh);
3840 Git::temp_release($tmp_fh, 1);
3841 }
3842 }
3843
3844 $hash = $::_repository->hash_and_insert_object(
3845 Git::temp_path($fh));
3846 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
3847
3848 Git::temp_release($fb->{base}, 1);
3849 Git::temp_release($fh, 1);
3850 } else {
3851 $hash = $fb->{blob} or die "no blob information\n";
3852 }
3853 $fb->{pool}->clear;
3854 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
3855 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
3856 undef;
3857 }
3858
3859 sub abort_edit {
3860 my $self = shift;
3861 $self->{nr} = $self->{gii}->{nr};
3862 delete $self->{gii};
3863 $self->SUPER::abort_edit(@_);
3864 }
3865
3866 sub close_edit {
3867 my $self = shift;
3868 $self->{git_commit_ok} = 1;
3869 $self->{nr} = $self->{gii}->{nr};
3870 delete $self->{gii};
3871 $self->SUPER::close_edit(@_);
3872 }
3873
3874 package SVN::Git::Editor;
3875 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
3876 use strict;
3877 use warnings;
3878 use Carp qw/croak/;
3879 use IO::File;
3880
3881 sub new {
3882 my ($class, $opts) = @_;
3883 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
3884 die "$_ required!\n" unless (defined $opts->{$_});
3885 }
3886
3887 my $pool = SVN::Pool->new;
3888 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
3889 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
3890 $opts->{r}, $mods);
3891
3892 # $opts->{ra} functions should not be used after this:
3893 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
3894 $opts->{editor_cb}, $pool);
3895 my $self = SVN::Delta::Editor->new(@ce, $pool);
3896 bless $self, $class;
3897 foreach (qw/svn_path r tree_a tree_b/) {
3898 $self->{$_} = $opts->{$_};
3899 }
3900 $self->{url} = $opts->{ra}->{url};
3901 $self->{mods} = $mods;
3902 $self->{types} = $types;
3903 $self->{pool} = $pool;
3904 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
3905 $self->{rm} = { };
3906 $self->{path_prefix} = length $self->{svn_path} ?
3907 "$self->{svn_path}/" : '';
3908 $self->{config} = $opts->{config};
3909 return $self;
3910 }
3911
3912 sub generate_diff {
3913 my ($tree_a, $tree_b) = @_;
3914 my @diff_tree = qw(diff-tree -z -r);
3915 if ($_cp_similarity) {
3916 push @diff_tree, "-C$_cp_similarity";
3917 } else {
3918 push @diff_tree, '-C';
3919 }
3920 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
3921 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
3922 push @diff_tree, $tree_a, $tree_b;
3923 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
3924 local $/ = "\0";
3925 my $state = 'meta';
3926 my @mods;
3927 while (<$diff_fh>) {
3928 chomp $_; # this gets rid of the trailing "\0"
3929 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
3930 ($::sha1)\s($::sha1)\s
3931 ([MTCRAD])\d*$/xo) {
3932 push @mods, { mode_a => $1, mode_b => $2,
3933 sha1_a => $3, sha1_b => $4,
3934 chg => $5 };
3935 if ($5 =~ /^(?:C|R)$/) {
3936 $state = 'file_a';
3937 } else {
3938 $state = 'file_b';
3939 }
3940 } elsif ($state eq 'file_a') {
3941 my $x = $mods[$#mods] or croak "Empty array\n";
3942 if ($x->{chg} !~ /^(?:C|R)$/) {
3943 croak "Error parsing $_, $x->{chg}\n";
3944 }
3945 $x->{file_a} = $_;
3946 $state = 'file_b';
3947 } elsif ($state eq 'file_b') {
3948 my $x = $mods[$#mods] or croak "Empty array\n";
3949 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
3950 croak "Error parsing $_, $x->{chg}\n";
3951 }
3952 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
3953 croak "Error parsing $_, $x->{chg}\n";
3954 }
3955 $x->{file_b} = $_;
3956 $state = 'meta';
3957 } else {
3958 croak "Error parsing $_\n";
3959 }
3960 }
3961 command_close_pipe($diff_fh, $ctx);
3962 \@mods;
3963 }
3964
3965 sub check_diff_paths {
3966 my ($ra, $pfx, $rev, $mods) = @_;
3967 my %types;
3968 $pfx .= '/' if length $pfx;
3969
3970 sub type_diff_paths {
3971 my ($ra, $types, $path, $rev) = @_;
3972 my @p = split m#/+#, $path;
3973 my $c = shift @p;
3974 unless (defined $types->{$c}) {
3975 $types->{$c} = $ra->check_path($c, $rev);
3976 }
3977 while (@p) {
3978 $c .= '/' . shift @p;
3979 next if defined $types->{$c};
3980 $types->{$c} = $ra->check_path($c, $rev);
3981 }
3982 }
3983
3984 foreach my $m (@$mods) {
3985 foreach my $f (qw/file_a file_b/) {
3986 next unless defined $m->{$f};
3987 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
3988 if (length $pfx.$dir && ! defined $types{$dir}) {
3989 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
3990 }
3991 }
3992 }
3993 \%types;
3994 }
3995
3996 sub split_path {
3997 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
3998 }
3999
4000 sub repo_path {
4001 my ($self, $path) = @_;
4002 $self->{path_prefix}.(defined $path ? $path : '');
4003 }
4004
4005 sub url_path {
4006 my ($self, $path) = @_;
4007 if ($self->{url} =~ m#^https?://#) {
4008 $path =~ s!([^~a-zA-Z0-9_./-])!uc sprintf("%%%02x",ord($1))!eg;
4009 }
4010 $self->{url} . '/' . $self->repo_path($path);
4011 }
4012
4013 sub rmdirs {
4014 my ($self) = @_;
4015 my $rm = $self->{rm};
4016 delete $rm->{''}; # we never delete the url we're tracking
4017 return unless %$rm;
4018
4019 foreach (keys %$rm) {
4020 my @d = split m#/#, $_;
4021 my $c = shift @d;
4022 $rm->{$c} = 1;
4023 while (@d) {
4024 $c .= '/' . shift @d;
4025 $rm->{$c} = 1;
4026 }
4027 }
4028 delete $rm->{$self->{svn_path}};
4029 delete $rm->{''}; # we never delete the url we're tracking
4030 return unless %$rm;
4031
4032 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
4033 $self->{tree_b});
4034 local $/ = "\0";
4035 while (<$fh>) {
4036 chomp;
4037 my @dn = split m#/#, $_;
4038 while (pop @dn) {
4039 delete $rm->{join '/', @dn};
4040 }
4041 unless (%$rm) {
4042 close $fh;
4043 return;
4044 }
4045 }
4046 command_close_pipe($fh, $ctx);
4047
4048 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
4049 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
4050 $self->close_directory($bat->{$d}, $p);
4051 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
4052 print "\tD+\t$d/\n" unless $::_q;
4053 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
4054 delete $bat->{$d};
4055 }
4056 }
4057
4058 sub open_or_add_dir {
4059 my ($self, $full_path, $baton) = @_;
4060 my $t = $self->{types}->{$full_path};
4061 if (!defined $t) {
4062 die "$full_path not known in r$self->{r} or we have a bug!\n";
4063 }
4064 {
4065 no warnings 'once';
4066 # SVN::Node::none and SVN::Node::file are used only once,
4067 # so we're shutting up Perl's warnings about them.
4068 if ($t == $SVN::Node::none) {
4069 return $self->add_directory($full_path, $baton,
4070 undef, -1, $self->{pool});
4071 } elsif ($t == $SVN::Node::dir) {
4072 return $self->open_directory($full_path, $baton,
4073 $self->{r}, $self->{pool});
4074 } # no warnings 'once'
4075 print STDERR "$full_path already exists in repository at ",
4076 "r$self->{r} and it is not a directory (",
4077 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
4078 } # no warnings 'once'
4079 exit 1;
4080 }
4081
4082 sub ensure_path {
4083 my ($self, $path) = @_;
4084 my $bat = $self->{bat};
4085 my $repo_path = $self->repo_path($path);
4086 return $bat->{''} unless (length $repo_path);
4087 my @p = split m#/+#, $repo_path;
4088 my $c = shift @p;
4089 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
4090 while (@p) {
4091 my $c0 = $c;
4092 $c .= '/' . shift @p;
4093 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
4094 }
4095 return $bat->{$c};
4096 }
4097
4098 # Subroutine to convert a globbing pattern to a regular expression.
4099 # From perl cookbook.
4100 sub glob2pat {
4101 my $globstr = shift;
4102 my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
4103 $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
4104 return '^' . $globstr . '$';
4105 }
4106
4107 sub check_autoprop {
4108 my ($self, $pattern, $properties, $file, $fbat) = @_;
4109 # Convert the globbing pattern to a regular expression.
4110 my $regex = glob2pat($pattern);
4111 # Check if the pattern matches the file name.
4112 if($file =~ m/($regex)/) {
4113 # Parse the list of properties to set.
4114 my @props = split(/;/, $properties);
4115 foreach my $prop (@props) {
4116 # Parse 'name=value' syntax and set the property.
4117 if ($prop =~ /([^=]+)=(.*)/) {
4118 my ($n,$v) = ($1,$2);
4119 for ($n, $v) {
4120 s/^\s+//; s/\s+$//;
4121 }
4122 $self->change_file_prop($fbat, $n, $v);
4123 }
4124 }
4125 }
4126 }
4127
4128 sub apply_autoprops {
4129 my ($self, $file, $fbat) = @_;
4130 my $conf_t = ${$self->{config}}{'config'};
4131 no warnings 'once';
4132 # Check [miscellany]/enable-auto-props in svn configuration.
4133 if (SVN::_Core::svn_config_get_bool(
4134 $conf_t,
4135 $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
4136 $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
4137 0)) {
4138 # Auto-props are enabled. Enumerate them to look for matches.
4139 my $callback = sub {
4140 $self->check_autoprop($_[0], $_[1], $file, $fbat);
4141 };
4142 SVN::_Core::svn_config_enumerate(
4143 $conf_t,
4144 $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
4145 $callback);
4146 }
4147 }
4148
4149 sub A {
4150 my ($self, $m) = @_;
4151 my ($dir, $file) = split_path($m->{file_b});
4152 my $pbat = $self->ensure_path($dir);
4153 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4154 undef, -1);
4155 print "\tA\t$m->{file_b}\n" unless $::_q;
4156 $self->apply_autoprops($file, $fbat);
4157 $self->chg_file($fbat, $m);
4158 $self->close_file($fbat,undef,$self->{pool});
4159 }
4160
4161 sub C {
4162 my ($self, $m) = @_;
4163 my ($dir, $file) = split_path($m->{file_b});
4164 my $pbat = $self->ensure_path($dir);
4165 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4166 $self->url_path($m->{file_a}), $self->{r});
4167 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
4168 $self->chg_file($fbat, $m);
4169 $self->close_file($fbat,undef,$self->{pool});
4170 }
4171
4172 sub delete_entry {
4173 my ($self, $path, $pbat) = @_;
4174 my $rpath = $self->repo_path($path);
4175 my ($dir, $file) = split_path($rpath);
4176 $self->{rm}->{$dir} = 1;
4177 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
4178 }
4179
4180 sub R {
4181 my ($self, $m) = @_;
4182 my ($dir, $file) = split_path($m->{file_b});
4183 my $pbat = $self->ensure_path($dir);
4184 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4185 $self->url_path($m->{file_a}), $self->{r});
4186 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
4187 $self->apply_autoprops($file, $fbat);
4188 $self->chg_file($fbat, $m);
4189 $self->close_file($fbat,undef,$self->{pool});
4190
4191 ($dir, $file) = split_path($m->{file_a});
4192 $pbat = $self->ensure_path($dir);
4193 $self->delete_entry($m->{file_a}, $pbat);
4194 }
4195
4196 sub M {
4197 my ($self, $m) = @_;
4198 my ($dir, $file) = split_path($m->{file_b});
4199 my $pbat = $self->ensure_path($dir);
4200 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
4201 $pbat,$self->{r},$self->{pool});
4202 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
4203 $self->chg_file($fbat, $m);
4204 $self->close_file($fbat,undef,$self->{pool});
4205 }
4206
4207 sub T { shift->M(@_) }
4208
4209 sub change_file_prop {
4210 my ($self, $fbat, $pname, $pval) = @_;
4211 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
4212 }
4213
4214 sub _chg_file_get_blob ($$$$) {
4215 my ($self, $fbat, $m, $which) = @_;
4216 my $fh = $::_repository->temp_acquire("git_blob_$which");
4217 if ($m->{"mode_$which"} =~ /^120/) {
4218 print $fh 'link ' or croak $!;
4219 $self->change_file_prop($fbat,'svn:special','*');
4220 } elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) {
4221 $self->change_file_prop($fbat,'svn:special',undef);
4222 }
4223 my $blob = $m->{"sha1_$which"};
4224 return ($fh,) if ($blob =~ /^0{40}$/);
4225 my $size = $::_repository->cat_blob($blob, $fh);
4226 croak "Failed to read object $blob" if ($size < 0);
4227 $fh->flush == 0 or croak $!;
4228 seek $fh, 0, 0 or croak $!;
4229
4230 my $exp = ::md5sum($fh);
4231 seek $fh, 0, 0 or croak $!;
4232 return ($fh, $exp);
4233 }
4234
4235 sub chg_file {
4236 my ($self, $fbat, $m) = @_;
4237 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
4238 $self->change_file_prop($fbat,'svn:executable','*');
4239 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
4240 $self->change_file_prop($fbat,'svn:executable',undef);
4241 }
4242 my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a';
4243 my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b';
4244 my $pool = SVN::Pool->new;
4245 my $atd = $self->apply_textdelta($fbat, $exp_a, $pool);
4246 if (-s $fh_a) {
4247 my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool);
4248 my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool);
4249 if (defined $res) {
4250 die "Unexpected result from send_txstream: $res\n",
4251 "(SVN::Core::VERSION: $SVN::Core::VERSION)\n";
4252 }
4253 } else {
4254 my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool);
4255 die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n"
4256 if ($got ne $exp_b);
4257 }
4258 Git::temp_release($fh_b, 1);
4259 Git::temp_release($fh_a, 1);
4260 $pool->clear;
4261 }
4262
4263 sub D {
4264 my ($self, $m) = @_;
4265 my ($dir, $file) = split_path($m->{file_b});
4266 my $pbat = $self->ensure_path($dir);
4267 print "\tD\t$m->{file_b}\n" unless $::_q;
4268 $self->delete_entry($m->{file_b}, $pbat);
4269 }
4270
4271 sub close_edit {
4272 my ($self) = @_;
4273 my ($p,$bat) = ($self->{pool}, $self->{bat});
4274 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
4275 next if $_ eq '';
4276 $self->close_directory($bat->{$_}, $p);
4277 }
4278 $self->close_directory($bat->{''}, $p);
4279 $self->SUPER::close_edit($p);
4280 $p->clear;
4281 }
4282
4283 sub abort_edit {
4284 my ($self) = @_;
4285 $self->SUPER::abort_edit($self->{pool});
4286 }
4287
4288 sub DESTROY {
4289 my $self = shift;
4290 $self->SUPER::DESTROY(@_);
4291 $self->{pool}->clear;
4292 }
4293
4294 # this drives the editor
4295 sub apply_diff {
4296 my ($self) = @_;
4297 my $mods = $self->{mods};
4298 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
4299 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
4300 my $f = $m->{chg};
4301 if (defined $o{$f}) {
4302 $self->$f($m);
4303 } else {
4304 fatal("Invalid change type: $f");
4305 }
4306 }
4307 $self->rmdirs if $_rmdir;
4308 if (@$mods == 0) {
4309 $self->abort_edit;
4310 } else {
4311 $self->close_edit;
4312 }
4313 return scalar @$mods;
4314 }
4315
4316 package Git::SVN::Ra;
4317 use vars qw/@ISA $config_dir $_log_window_size/;
4318 use strict;
4319 use warnings;
4320 my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
4321
4322 BEGIN {
4323 # enforce temporary pool usage for some simple functions
4324 no strict 'refs';
4325 for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root
4326 get_file/) {
4327 my $SUPER = "SUPER::$f";
4328 *$f = sub {
4329 my $self = shift;
4330 my $pool = SVN::Pool->new;
4331 my @ret = $self->$SUPER(@_,$pool);
4332 $pool->clear;
4333 wantarray ? @ret : $ret[0];
4334 };
4335 }
4336 }
4337
4338 sub _auth_providers () {
4339 [
4340 SVN::Client::get_simple_provider(),
4341 SVN::Client::get_ssl_server_trust_file_provider(),
4342 SVN::Client::get_simple_prompt_provider(
4343 \&Git::SVN::Prompt::simple, 2),
4344 SVN::Client::get_ssl_client_cert_file_provider(),
4345 SVN::Client::get_ssl_client_cert_prompt_provider(
4346 \&Git::SVN::Prompt::ssl_client_cert, 2),
4347 SVN::Client::get_ssl_client_cert_pw_file_provider(),
4348 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
4349 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
4350 SVN::Client::get_username_provider(),
4351 SVN::Client::get_ssl_server_trust_prompt_provider(
4352 \&Git::SVN::Prompt::ssl_server_trust),
4353 SVN::Client::get_username_prompt_provider(
4354 \&Git::SVN::Prompt::username, 2)
4355 ]
4356 }
4357
4358 sub escape_uri_only {
4359 my ($uri) = @_;
4360 my @tmp;
4361 foreach (split m{/}, $uri) {
4362 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
4363 push @tmp, $_;
4364 }
4365 join('/', @tmp);
4366 }
4367
4368 sub escape_url {
4369 my ($url) = @_;
4370 if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
4371 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
4372 $url = "$scheme://$domain$uri";
4373 }
4374 $url;
4375 }
4376
4377 sub new {
4378 my ($class, $url) = @_;
4379 $url =~ s!/+$!!;
4380 return $RA if ($RA && $RA->{url} eq $url);
4381
4382 SVN::_Core::svn_config_ensure($config_dir, undef);
4383 my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
4384 my $config = SVN::Core::config_get_config($config_dir);
4385 $RA = undef;
4386 my $dont_store_passwords = 1;
4387 my $conf_t = ${$config}{'config'};
4388 {
4389 no warnings 'once';
4390 # The usage of $SVN::_Core::SVN_CONFIG_* variables
4391 # produces warnings that variables are used only once.
4392 # I had not found the better way to shut them up, so
4393 # the warnings of type 'once' are disabled in this block.
4394 if (SVN::_Core::svn_config_get_bool($conf_t,
4395 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4396 $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
4397 1) == 0) {
4398 SVN::_Core::svn_auth_set_parameter($baton,
4399 $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
4400 bless (\$dont_store_passwords, "_p_void"));
4401 }
4402 if (SVN::_Core::svn_config_get_bool($conf_t,
4403 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4404 $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
4405 1) == 0) {
4406 $Git::SVN::Prompt::_no_auth_cache = 1;
4407 }
4408 } # no warnings 'once'
4409 my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
4410 config => $config,
4411 pool => SVN::Pool->new,
4412 auth_provider_callbacks => $callbacks);
4413 $self->{url} = $url;
4414 $self->{svn_path} = $url;
4415 $self->{repos_root} = $self->get_repos_root;
4416 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
4417 $self->{cache} = { check_path => { r => 0, data => {} },
4418 get_dir => { r => 0, data => {} } };
4419 $RA = bless $self, $class;
4420 }
4421
4422 sub check_path {
4423 my ($self, $path, $r) = @_;
4424 my $cache = $self->{cache}->{check_path};
4425 if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
4426 return $cache->{data}->{$path};
4427 }
4428 my $pool = SVN::Pool->new;
4429 my $t = $self->SUPER::check_path($path, $r, $pool);
4430 $pool->clear;
4431 if ($r != $cache->{r}) {
4432 %{$cache->{data}} = ();
4433 $cache->{r} = $r;
4434 }
4435 $cache->{data}->{$path} = $t;
4436 }
4437
4438 sub get_dir {
4439 my ($self, $dir, $r) = @_;
4440 my $cache = $self->{cache}->{get_dir};
4441 if ($r == $cache->{r}) {
4442 if (my $x = $cache->{data}->{$dir}) {
4443 return wantarray ? @$x : $x->[0];
4444 }
4445 }
4446 my $pool = SVN::Pool->new;
4447 my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
4448 my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
4449 $pool->clear;
4450 if ($r != $cache->{r}) {
4451 %{$cache->{data}} = ();
4452 $cache->{r} = $r;
4453 }
4454 $cache->{data}->{$dir} = [ \%dirents, $r, $props ];
4455 wantarray ? (\%dirents, $r, $props) : \%dirents;
4456 }
4457
4458 sub DESTROY {
4459 # do not call the real DESTROY since we store ourselves in $RA
4460 }
4461
4462 # get_log(paths, start, end, limit,
4463 # discover_changed_paths, strict_node_history, receiver)
4464 sub get_log {
4465 my ($self, @args) = @_;
4466 my $pool = SVN::Pool->new;
4467
4468 # svn_log_changed_path_t objects passed to get_log are likely to be
4469 # overwritten even if only the refs are copied to an external variable,
4470 # so we should dup the structures in their entirety. Using an
4471 # externally passed pool (instead of our temporary and quickly cleared
4472 # pool in Git::SVN::Ra) does not help matters at all...
4473 my $receiver = pop @args;
4474 my $prefix = "/".$self->{svn_path};
4475 $prefix =~ s#/+($)##;
4476 my $prefix_regex = qr#^\Q$prefix\E#;
4477 push(@args, sub {
4478 my ($paths) = $_[0];
4479 return &$receiver(@_) unless $paths;
4480 $_[0] = ();
4481 foreach my $p (keys %$paths) {
4482 my $i = $paths->{$p};
4483 # Make path relative to our url, not repos_root
4484 $p =~ s/$prefix_regex//;
4485 my %s = map { $_ => $i->$_; }
4486 qw/copyfrom_path copyfrom_rev action/;
4487 if ($s{'copyfrom_path'}) {
4488 $s{'copyfrom_path'} =~ s/$prefix_regex//;
4489 }
4490 $_[0]{$p} = \%s;
4491 }
4492 &$receiver(@_);
4493 });
4494
4495
4496 # the limit parameter was not supported in SVN 1.1.x, so we
4497 # drop it. Therefore, the receiver callback passed to it
4498 # is made aware of this limitation by being wrapped if
4499 # the limit passed to is being wrapped.
4500 if ($SVN::Core::VERSION le '1.2.0') {
4501 my $limit = splice(@args, 3, 1);
4502 if ($limit > 0) {
4503 my $receiver = pop @args;
4504 push(@args, sub { &$receiver(@_) if (--$limit >= 0) });
4505 }
4506 }
4507 my $ret = $self->SUPER::get_log(@args, $pool);
4508 $pool->clear;
4509 $ret;
4510 }
4511
4512 sub trees_match {
4513 my ($self, $url1, $rev1, $url2, $rev2) = @_;
4514 my $ctx = SVN::Client->new(auth => _auth_providers);
4515 my $out = IO::File->new_tmpfile;
4516
4517 # older SVN (1.1.x) doesn't take $pool as the last parameter for
4518 # $ctx->diff(), so we'll create a default one
4519 my $pool = SVN::Pool->new_default_sub;
4520
4521 $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
4522 $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
4523 $out->flush;
4524 my $ret = (($out->stat)[7] == 0);
4525 close $out or croak $!;
4526
4527 $ret;
4528 }
4529
4530 sub get_commit_editor {
4531 my ($self, $log, $cb, $pool) = @_;
4532 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
4533 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
4534 }
4535
4536 sub gs_do_update {
4537 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
4538 my $new = ($rev_a == $rev_b);
4539 my $path = $gs->{path};
4540
4541 if ($new && -e $gs->{index}) {
4542 unlink $gs->{index} or die
4543 "Couldn't unlink index: $gs->{index}: $!\n";
4544 }
4545 my $pool = SVN::Pool->new;
4546 $editor->set_path_strip($path);
4547 my (@pc) = split m#/#, $path;
4548 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
4549 1, $editor, $pool);
4550 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4551
4552 # Since we can't rely on svn_ra_reparent being available, we'll
4553 # just have to do some magic with set_path to make it so
4554 # we only want a partial path.
4555 my $sp = '';
4556 my $final = join('/', @pc);
4557 while (@pc) {
4558 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
4559 $sp .= '/' if length $sp;
4560 $sp .= shift @pc;
4561 }
4562 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
4563
4564 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
4565
4566 $reporter->finish_report($pool);
4567 $pool->clear;
4568 $editor->{git_commit_ok};
4569 }
4570
4571 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
4572 # svn_ra_reparent didn't work before 1.4)
4573 sub gs_do_switch {
4574 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
4575 my $path = $gs->{path};
4576 my $pool = SVN::Pool->new;
4577
4578 my $full_url = $self->{url};
4579 my $old_url = $full_url;
4580 $full_url .= '/' . $path if length $path;
4581 my ($ra, $reparented);
4582
4583 if ($old_url =~ m#^svn(\+ssh)?://# ||
4584 ($full_url =~ m#^https?://# &&
4585 escape_url($full_url) ne $full_url)) {
4586 $_[0] = undef;
4587 $self = undef;
4588 $RA = undef;
4589 $ra = Git::SVN::Ra->new($full_url);
4590 $ra_invalid = 1;
4591 } elsif ($old_url ne $full_url) {
4592 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool);
4593 $self->{url} = $full_url;
4594 $reparented = 1;
4595 }
4596
4597 $ra ||= $self;
4598 $url_b = escape_url($url_b);
4599 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
4600 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4601 $reporter->set_path('', $rev_a, 0, @lock, $pool);
4602 $reporter->finish_report($pool);
4603
4604 if ($reparented) {
4605 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
4606 $self->{url} = $old_url;
4607 }
4608
4609 $pool->clear;
4610 $editor->{git_commit_ok};
4611 }
4612
4613 sub longest_common_path {
4614 my ($gsv, $globs) = @_;
4615 my %common;
4616 my $common_max = scalar @$gsv;
4617
4618 foreach my $gs (@$gsv) {
4619 my @tmp = split m#/#, $gs->{path};
4620 my $p = '';
4621 foreach (@tmp) {
4622 $p .= length($p) ? "/$_" : $_;
4623 $common{$p} ||= 0;
4624 $common{$p}++;
4625 }
4626 }
4627 $globs ||= [];
4628 $common_max += scalar @$globs;
4629 foreach my $glob (@$globs) {
4630 my @tmp = split m#/#, $glob->{path}->{left};
4631 my $p = '';
4632 foreach (@tmp) {
4633 $p .= length($p) ? "/$_" : $_;
4634 $common{$p} ||= 0;
4635 $common{$p}++;
4636 }
4637 }
4638
4639 my $longest_path = '';
4640 foreach (sort {length $b <=> length $a} keys %common) {
4641 if ($common{$_} == $common_max) {
4642 $longest_path = $_;
4643 last;
4644 }
4645 }
4646 $longest_path;
4647 }
4648
4649 sub gs_fetch_loop_common {
4650 my ($self, $base, $head, $gsv, $globs) = @_;
4651 return if ($base > $head);
4652 my $inc = $_log_window_size;
4653 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
4654 my $longest_path = longest_common_path($gsv, $globs);
4655 my $ra_url = $self->{url};
4656 my $find_trailing_edge;
4657 while (1) {
4658 my %revs;
4659 my $err;
4660 my $err_handler = $SVN::Error::handler;
4661 $SVN::Error::handler = sub {
4662 ($err) = @_;
4663 skip_unknown_revs($err);
4664 };
4665 sub _cb {
4666 my ($paths, $r, $author, $date, $log) = @_;
4667 [ $paths,
4668 { author => $author, date => $date, log => $log } ];
4669 }
4670 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
4671 sub { $revs{$_[1]} = _cb(@_) });
4672 if ($err) {
4673 print "Checked through r$max\r";
4674 } else {
4675 $find_trailing_edge = 1;
4676 }
4677 if ($err and $find_trailing_edge) {
4678 print STDERR "Path '$longest_path' ",
4679 "was probably deleted:\n",
4680 $err->expanded_message,
4681 "\nWill attempt to follow ",
4682 "revisions r$min .. r$max ",
4683 "committed before the deletion\n";
4684 my $hi = $max;
4685 while (--$hi >= $min) {
4686 my $ok;
4687 $self->get_log([$longest_path], $min, $hi,
4688 0, 1, 1, sub {
4689 $ok = $_[1];
4690 $revs{$_[1]} = _cb(@_) });
4691 if ($ok) {
4692 print STDERR "r$min .. r$ok OK\n";
4693 last;
4694 }
4695 }
4696 $find_trailing_edge = 0;
4697 }
4698 $SVN::Error::handler = $err_handler;
4699
4700 my %exists = map { $_->{path} => $_ } @$gsv;
4701 foreach my $r (sort {$a <=> $b} keys %revs) {
4702 my ($paths, $logged) = @{$revs{$r}};
4703
4704 foreach my $gs ($self->match_globs(\%exists, $paths,
4705 $globs, $r)) {
4706 if ($gs->rev_map_max >= $r) {
4707 next;
4708 }
4709 next unless $gs->match_paths($paths, $r);
4710 $gs->{logged_rev_props} = $logged;
4711 if (my $last_commit = $gs->last_commit) {
4712 $gs->assert_index_clean($last_commit);
4713 }
4714 my $log_entry = $gs->do_fetch($paths, $r);
4715 if ($log_entry) {
4716 $gs->do_git_commit($log_entry);
4717 }
4718 $INDEX_FILES{$gs->{index}} = 1;
4719 }
4720 foreach my $g (@$globs) {
4721 my $k = "svn-remote.$g->{remote}." .
4722 "$g->{t}-maxRev";
4723 Git::SVN::tmp_config($k, $r);
4724 }
4725 if ($ra_invalid) {
4726 $_[0] = undef;
4727 $self = undef;
4728 $RA = undef;
4729 $self = Git::SVN::Ra->new($ra_url);
4730 $ra_invalid = undef;
4731 }
4732 }
4733 # pre-fill the .rev_db since it'll eventually get filled in
4734 # with '0' x40 if something new gets committed
4735 foreach my $gs (@$gsv) {
4736 next if $gs->rev_map_max >= $max;
4737 next if defined $gs->rev_map_get($max);
4738 $gs->rev_map_set($max, 0 x40);
4739 }
4740 foreach my $g (@$globs) {
4741 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
4742 Git::SVN::tmp_config($k, $max);
4743 }
4744 last if $max >= $head;
4745 $min = $max + 1;
4746 $max += $inc;
4747 $max = $head if ($max > $head);
4748 }
4749 Git::SVN::gc();
4750 }
4751
4752 sub get_dir_globbed {
4753 my ($self, $left, $depth, $r) = @_;
4754
4755 my @x = eval { $self->get_dir($left, $r) };
4756 return unless scalar @x == 3;
4757 my $dirents = $x[0];
4758 my @finalents;
4759 foreach my $de (keys %$dirents) {
4760 next if $dirents->{$de}->{kind} != $SVN::Node::dir;
4761 if ($depth > 1) {
4762 my @args = ("$left/$de", $depth - 1, $r);
4763 foreach my $dir ($self->get_dir_globbed(@args)) {
4764 push @finalents, "$de/$dir";
4765 }
4766 } else {
4767 push @finalents, $de;
4768 }
4769 }
4770 @finalents;
4771 }
4772
4773 sub match_globs {
4774 my ($self, $exists, $paths, $globs, $r) = @_;
4775
4776 sub get_dir_check {
4777 my ($self, $exists, $g, $r) = @_;
4778
4779 my @dirs = $self->get_dir_globbed($g->{path}->{left},
4780 $g->{path}->{depth},
4781 $r);
4782
4783 foreach my $de (@dirs) {
4784 my $p = $g->{path}->full_path($de);
4785 next if $exists->{$p};
4786 next if (length $g->{path}->{right} &&
4787 ($self->check_path($p, $r) !=
4788 $SVN::Node::dir));
4789 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
4790 $g->{ref}->full_path($de), 1);
4791 }
4792 }
4793 foreach my $g (@$globs) {
4794 if (my $path = $paths->{"/$g->{path}->{left}"}) {
4795 if ($path->{action} =~ /^[AR]$/) {
4796 get_dir_check($self, $exists, $g, $r);
4797 }
4798 }
4799 foreach (keys %$paths) {
4800 if (/$g->{path}->{left_regex}/ &&
4801 !/$g->{path}->{regex}/) {
4802 next if $paths->{$_}->{action} !~ /^[AR]$/;
4803 get_dir_check($self, $exists, $g, $r);
4804 }
4805 next unless /$g->{path}->{regex}/;
4806 my $p = $1;
4807 my $pathname = $g->{path}->full_path($p);
4808 next if $exists->{$pathname};
4809 next if ($self->check_path($pathname, $r) !=
4810 $SVN::Node::dir);
4811 $exists->{$pathname} = Git::SVN->init(
4812 $self->{url}, $pathname, undef,
4813 $g->{ref}->full_path($p), 1);
4814 }
4815 my $c = '';
4816 foreach (split m#/#, $g->{path}->{left}) {
4817 $c .= "/$_";
4818 next unless ($paths->{$c} &&
4819 ($paths->{$c}->{action} =~ /^[AR]$/));
4820 get_dir_check($self, $exists, $g, $r);
4821 }
4822 }
4823 values %$exists;
4824 }
4825
4826 sub minimize_url {
4827 my ($self) = @_;
4828 return $self->{url} if ($self->{url} eq $self->{repos_root});
4829 my $url = $self->{repos_root};
4830 my @components = split(m!/!, $self->{svn_path});
4831 my $c = '';
4832 do {
4833 $url .= "/$c" if length $c;
4834 eval {
4835 my $ra = (ref $self)->new($url);
4836 my $latest = $ra->get_latest_revnum;
4837 $ra->get_log("", $latest, 0, 1, 0, 1, sub {});
4838 };
4839 } while ($@ && ($c = shift @components));
4840 $url;
4841 }
4842
4843 sub can_do_switch {
4844 my $self = shift;
4845 unless (defined $can_do_switch) {
4846 my $pool = SVN::Pool->new;
4847 my $rep = eval {
4848 $self->do_switch(1, '', 0, $self->{url},
4849 SVN::Delta::Editor->new, $pool);
4850 };
4851 if ($@) {
4852 $can_do_switch = 0;
4853 } else {
4854 $rep->abort_report($pool);
4855 $can_do_switch = 1;
4856 }
4857 $pool->clear;
4858 }
4859 $can_do_switch;
4860 }
4861
4862 sub skip_unknown_revs {
4863 my ($err) = @_;
4864 my $errno = $err->apr_err();
4865 # Maybe the branch we're tracking didn't
4866 # exist when the repo started, so it's
4867 # not an error if it doesn't, just continue
4868 #
4869 # Wonderfully consistent library, eh?
4870 # 160013 - svn:// and file://
4871 # 175002 - http(s)://
4872 # 175007 - http(s):// (this repo required authorization, too...)
4873 # More codes may be discovered later...
4874 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
4875 my $err_key = $err->expanded_message;
4876 # revision numbers change every time, filter them out
4877 $err_key =~ s/\d+/\0/g;
4878 $err_key = "$errno\0$err_key";
4879 unless ($ignored_err{$err_key}) {
4880 warn "W: Ignoring error from SVN, path probably ",
4881 "does not exist: ($errno): ",
4882 $err->expanded_message,"\n";
4883 warn "W: Do not be alarmed at the above message ",
4884 "git-svn is just searching aggressively for ",
4885 "old history.\n",
4886 "This may take a while on large repositories\n";
4887 $ignored_err{$err_key} = 1;
4888 }
4889 return;
4890 }
4891 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
4892 }
4893
4894 package Git::SVN::Log;
4895 use strict;
4896 use warnings;
4897 use POSIX qw/strftime/;
4898 use Time::Local;
4899 use constant commit_log_separator => ('-' x 72) . "\n";
4900 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
4901 %rusers $show_commit $incremental/;
4902 my $l_fmt;
4903
4904 sub cmt_showable {
4905 my ($c) = @_;
4906 return 1 if defined $c->{r};
4907
4908 # big commit message got truncated by the 16k pretty buffer in rev-list
4909 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
4910 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
4911 @{$c->{l}} = ();
4912 my @log = command(qw/cat-file commit/, $c->{c});
4913
4914 # shift off the headers
4915 shift @log while ($log[0] ne '');
4916 shift @log;
4917
4918 # TODO: make $c->{l} not have a trailing newline in the future
4919 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
4920
4921 (undef, $c->{r}, undef) = ::extract_metadata(
4922 (grep(/^git-svn-id: /, @log))[-1]);
4923 }
4924 return defined $c->{r};
4925 }
4926
4927 sub log_use_color {
4928 return $color || Git->repository->get_colorbool('color.diff');
4929 }
4930
4931 sub git_svn_log_cmd {
4932 my ($r_min, $r_max, @args) = @_;
4933 my $head = 'HEAD';
4934 my (@files, @log_opts);
4935 foreach my $x (@args) {
4936 if ($x eq '--' || @files) {
4937 push @files, $x;
4938 } else {
4939 if (::verify_ref("$x^0")) {
4940 $head = $x;
4941 } else {
4942 push @log_opts, $x;
4943 }
4944 }
4945 }
4946
4947 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
4948 $gs ||= Git::SVN->_new;
4949 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
4950 $gs->refname);
4951 push @cmd, '-r' unless $non_recursive;
4952 push @cmd, qw/--raw --name-status/ if $verbose;
4953 push @cmd, '--color' if log_use_color();
4954 push @cmd, @log_opts;
4955 if (defined $r_max && $r_max == $r_min) {
4956 push @cmd, '--max-count=1';
4957 if (my $c = $gs->rev_map_get($r_max)) {
4958 push @cmd, $c;
4959 }
4960 } elsif (defined $r_max) {
4961 if ($r_max < $r_min) {
4962 ($r_min, $r_max) = ($r_max, $r_min);
4963 }
4964 my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
4965 my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
4966 # If there are no commits in the range, both $c_max and $c_min
4967 # will be undefined. If there is at least 1 commit in the
4968 # range, both will be defined.
4969 return () if !defined $c_min || !defined $c_max;
4970 if ($c_min eq $c_max) {
4971 push @cmd, '--max-count=1', $c_min;
4972 } else {
4973 push @cmd, '--boundary', "$c_min..$c_max";
4974 }
4975 }
4976 return (@cmd, @files);
4977 }
4978
4979 # adapted from pager.c
4980 sub config_pager {
4981 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
4982 if (!defined $pager) {
4983 $pager = 'less';
4984 } elsif (length $pager == 0 || $pager eq 'cat') {
4985 $pager = undef;
4986 }
4987 $ENV{GIT_PAGER_IN_USE} = defined($pager);
4988 }
4989
4990 sub run_pager {
4991 return unless -t *STDOUT && defined $pager;
4992 pipe my ($rfd, $wfd) or return;
4993 defined(my $pid = fork) or ::fatal "Can't fork: $!";
4994 if (!$pid) {
4995 open STDOUT, '>&', $wfd or
4996 ::fatal "Can't redirect to stdout: $!";
4997 return;
4998 }
4999 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
5000 $ENV{LESS} ||= 'FRSX';
5001 exec $pager or ::fatal "Can't run pager: $! ($pager)";
5002 }
5003
5004 sub format_svn_date {
5005 # some systmes don't handle or mishandle %z, so be creative.
5006 my $t = shift || time;
5007 my $gm = timelocal(gmtime($t));
5008 my $sign = qw( + + - )[ $t <=> $gm ];
5009 my $gmoff = sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
5010 return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t));
5011 }
5012
5013 sub parse_git_date {
5014 my ($t, $tz) = @_;
5015 # Date::Parse isn't in the standard Perl distro :(
5016 if ($tz =~ s/^\+//) {
5017 $t += tz_to_s_offset($tz);
5018 } elsif ($tz =~ s/^\-//) {
5019 $t -= tz_to_s_offset($tz);
5020 }
5021 return $t;
5022 }
5023
5024 sub set_local_timezone {
5025 if (defined $TZ) {
5026 $ENV{TZ} = $TZ;
5027 } else {
5028 delete $ENV{TZ};
5029 }
5030 }
5031
5032 sub tz_to_s_offset {
5033 my ($tz) = @_;
5034 $tz =~ s/(\d\d)$//;
5035 return ($1 * 60) + ($tz * 3600);
5036 }
5037
5038 sub get_author_info {
5039 my ($dest, $author, $t, $tz) = @_;
5040 $author =~ s/(?:^\s*|\s*$)//g;
5041 $dest->{a_raw} = $author;
5042 my $au;
5043 if ($::_authors) {
5044 $au = $rusers{$author} || undef;
5045 }
5046 if (!$au) {
5047 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
5048 }
5049 $dest->{t} = $t;
5050 $dest->{tz} = $tz;
5051 $dest->{a} = $au;
5052 $dest->{t_utc} = parse_git_date($t, $tz);
5053 }
5054
5055 sub process_commit {
5056 my ($c, $r_min, $r_max, $defer) = @_;
5057 if (defined $r_min && defined $r_max) {
5058 if ($r_min == $c->{r} && $r_min == $r_max) {
5059 show_commit($c);
5060 return 0;
5061 }
5062 return 1 if $r_min == $r_max;
5063 if ($r_min < $r_max) {
5064 # we need to reverse the print order
5065 return 0 if (defined $limit && --$limit < 0);
5066 push @$defer, $c;
5067 return 1;
5068 }
5069 if ($r_min != $r_max) {
5070 return 1 if ($r_min < $c->{r});
5071 return 1 if ($r_max > $c->{r});
5072 }
5073 }
5074 return 0 if (defined $limit && --$limit < 0);
5075 show_commit($c);
5076 return 1;
5077 }
5078
5079 sub show_commit {
5080 my $c = shift;
5081 if ($oneline) {
5082 my $x = "\n";
5083 if (my $l = $c->{l}) {
5084 while ($l->[0] =~ /^\s*$/) { shift @$l }
5085 $x = $l->[0];
5086 }
5087 $l_fmt ||= 'A' . length($c->{r});
5088 print 'r',pack($l_fmt, $c->{r}),' | ';
5089 print "$c->{c} | " if $show_commit;
5090 print $x;
5091 } else {
5092 show_commit_normal($c);
5093 }
5094 }
5095
5096 sub show_commit_changed_paths {
5097 my ($c) = @_;
5098 return unless $c->{changed};
5099 print "Changed paths:\n", @{$c->{changed}};
5100 }
5101
5102 sub show_commit_normal {
5103 my ($c) = @_;
5104 print commit_log_separator, "r$c->{r} | ";
5105 print "$c->{c} | " if $show_commit;
5106 print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
5107 my $nr_line = 0;
5108
5109 if (my $l = $c->{l}) {
5110 while ($l->[$#$l] eq "\n" && $#$l > 0
5111 && $l->[($#$l - 1)] eq "\n") {
5112 pop @$l;
5113 }
5114 $nr_line = scalar @$l;
5115 if (!$nr_line) {
5116 print "1 line\n\n\n";
5117 } else {
5118 if ($nr_line == 1) {
5119 $nr_line = '1 line';
5120 } else {
5121 $nr_line .= ' lines';
5122 }
5123 print $nr_line, "\n";
5124 show_commit_changed_paths($c);
5125 print "\n";
5126 print $_ foreach @$l;
5127 }
5128 } else {
5129 print "1 line\n";
5130 show_commit_changed_paths($c);
5131 print "\n";
5132
5133 }
5134 foreach my $x (qw/raw stat diff/) {
5135 if ($c->{$x}) {
5136 print "\n";
5137 print $_ foreach @{$c->{$x}}
5138 }
5139 }
5140 }
5141
5142 sub cmd_show_log {
5143 my (@args) = @_;
5144 my ($r_min, $r_max);
5145 my $r_last = -1; # prevent dupes
5146 set_local_timezone();
5147 if (defined $::_revision) {
5148 if ($::_revision =~ /^(\d+):(\d+)$/) {
5149 ($r_min, $r_max) = ($1, $2);
5150 } elsif ($::_revision =~ /^\d+$/) {
5151 $r_min = $r_max = $::_revision;
5152 } else {
5153 ::fatal "-r$::_revision is not supported, use ",
5154 "standard 'git log' arguments instead";
5155 }
5156 }
5157
5158 config_pager();
5159 @args = git_svn_log_cmd($r_min, $r_max, @args);
5160 if (!@args) {
5161 print commit_log_separator unless $incremental || $oneline;
5162 return;
5163 }
5164 my $log = command_output_pipe(@args);
5165 run_pager();
5166 my (@k, $c, $d, $stat);
5167 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
5168 while (<$log>) {
5169 if (/^${esc_color}commit -?($::sha1_short)/o) {
5170 my $cmt = $1;
5171 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
5172 $r_last = $c->{r};
5173 process_commit($c, $r_min, $r_max, \@k) or
5174 goto out;
5175 }
5176 $d = undef;
5177 $c = { c => $cmt };
5178 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
5179 get_author_info($c, $1, $2, $3);
5180 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
5181 # ignore
5182 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
5183 push @{$c->{raw}}, $_;
5184 } elsif (/^${esc_color}[ACRMDT]\t/) {
5185 # we could add $SVN->{svn_path} here, but that requires
5186 # remote access at the moment (repo_path_split)...
5187 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
5188 push @{$c->{changed}}, $_;
5189 } elsif (/^${esc_color}diff /o) {
5190 $d = 1;
5191 push @{$c->{diff}}, $_;
5192 } elsif ($d) {
5193 push @{$c->{diff}}, $_;
5194 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
5195 $esc_color*[\+\-]*$esc_color$/x) {
5196 $stat = 1;
5197 push @{$c->{stat}}, $_;
5198 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
5199 push @{$c->{stat}}, $_;
5200 $stat = undef;
5201 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
5202 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
5203 } elsif (s/^${esc_color} //o) {
5204 push @{$c->{l}}, $_;
5205 }
5206 }
5207 if ($c && defined $c->{r} && $c->{r} != $r_last) {
5208 $r_last = $c->{r};
5209 process_commit($c, $r_min, $r_max, \@k);
5210 }
5211 if (@k) {
5212 ($r_min, $r_max) = ($r_max, $r_min);
5213 process_commit($_, $r_min, $r_max) foreach reverse @k;
5214 }
5215 out:
5216 close $log;
5217 print commit_log_separator unless $incremental || $oneline;
5218 }
5219
5220 sub cmd_blame {
5221 my $path = pop;
5222
5223 config_pager();
5224 run_pager();
5225
5226 my ($fh, $ctx, $rev);
5227
5228 if ($_git_format) {
5229 ($fh, $ctx) = command_output_pipe('blame', @_, $path);
5230 while (my $line = <$fh>) {
5231 if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
5232 # Uncommitted edits show up as a rev ID of
5233 # all zeros, which we can't look up with
5234 # cmt_metadata
5235 if ($1 !~ /^0+$/) {
5236 (undef, $rev, undef) =
5237 ::cmt_metadata($1);
5238 $rev = '0' if (!$rev);
5239 } else {
5240 $rev = '0';
5241 }
5242 $rev = sprintf('%-10s', $rev);
5243 $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
5244 }
5245 print $line;
5246 }
5247 } else {
5248 ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
5249 '--', $path);
5250 my ($sha1);
5251 my %authors;
5252 my @buffer;
5253 my %dsha; #distinct sha keys
5254
5255 while (my $line = <$fh>) {
5256 push @buffer, $line;
5257 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
5258 $dsha{$1} = 1;
5259 }
5260 }
5261
5262 my $s2r = ::cmt_sha2rev_batch([keys %dsha]);
5263
5264 foreach my $line (@buffer) {
5265 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
5266 $rev = $s2r->{$1};
5267 $rev = '0' if (!$rev)
5268 }
5269 elsif ($line =~ /^author (.*)/) {
5270 $authors{$rev} = $1;
5271 $authors{$rev} =~ s/\s/_/g;
5272 }
5273 elsif ($line =~ /^\t(.*)$/) {
5274 printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
5275 }
5276 }
5277 }
5278 command_close_pipe($fh, $ctx);
5279 }
5280
5281 package Git::SVN::Migration;
5282 # these version numbers do NOT correspond to actual version numbers
5283 # of git nor git-svn. They are just relative.
5284 #
5285 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
5286 #
5287 # v1 layout: .git/$id/info/url, refs/remotes/$id
5288 #
5289 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
5290 #
5291 # v3 layout: .git/svn/$id, refs/remotes/$id
5292 # - info/url may remain for backwards compatibility
5293 # - this is what we migrate up to this layout automatically,
5294 # - this will be used by git svn init on single branches
5295 # v3.1 layout (auto migrated):
5296 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
5297 # for backwards compatibility
5298 #
5299 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
5300 # - this is only created for newly multi-init-ed
5301 # repositories. Similar in spirit to the
5302 # --use-separate-remotes option in git-clone (now default)
5303 # - we do not automatically migrate to this (following
5304 # the example set by core git)
5305 #
5306 # v5 layout: .rev_db.$UUID => .rev_map.$UUID
5307 # - newer, more-efficient format that uses 24-bytes per record
5308 # with no filler space.
5309 # - use xxd -c24 < .rev_map.$UUID to view and debug
5310 # - This is a one-way migration, repositories updated to the
5311 # new format will not be able to use old git-svn without
5312 # rebuilding the .rev_db. Rebuilding the rev_db is not
5313 # possible if noMetadata or useSvmProps are set; but should
5314 # be no problem for users that use the (sensible) defaults.
5315 use strict;
5316 use warnings;
5317 use Carp qw/croak/;
5318 use File::Path qw/mkpath/;
5319 use File::Basename qw/dirname basename/;
5320 use vars qw/$_minimize/;
5321
5322 sub migrate_from_v0 {
5323 my $git_dir = $ENV{GIT_DIR};
5324 return undef unless -d $git_dir;
5325 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5326 my $migrated = 0;
5327 while (<$fh>) {
5328 chomp;
5329 my ($id, $orig_ref) = ($_, $_);
5330 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
5331 next unless -f "$git_dir/$id/info/url";
5332 my $new_ref = "refs/remotes/$id";
5333 if (::verify_ref("$new_ref^0")) {
5334 print STDERR "W: $orig_ref is probably an old ",
5335 "branch used by an ancient version of ",
5336 "git-svn.\n",
5337 "However, $new_ref also exists.\n",
5338 "We will not be able ",
5339 "to use this branch until this ",
5340 "ambiguity is resolved.\n";
5341 next;
5342 }
5343 print STDERR "Migrating from v0 layout...\n" if !$migrated;
5344 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
5345 command_noisy('update-ref', $new_ref, $orig_ref);
5346 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
5347 $migrated++;
5348 }
5349 command_close_pipe($fh, $ctx);
5350 print STDERR "Done migrating from v0 layout...\n" if $migrated;
5351 $migrated;
5352 }
5353
5354 sub migrate_from_v1 {
5355 my $git_dir = $ENV{GIT_DIR};
5356 my $migrated = 0;
5357 return $migrated unless -d $git_dir;
5358 my $svn_dir = "$git_dir/svn";
5359
5360 # just in case somebody used 'svn' as their $id at some point...
5361 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
5362
5363 print STDERR "Migrating from a git-svn v1 layout...\n";
5364 mkpath([$svn_dir]);
5365 print STDERR "Data from a previous version of git-svn exists, but\n\t",
5366 "$svn_dir\n\t(required for this version ",
5367 "($::VERSION) of git-svn) does not exist.\n";
5368 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5369 while (<$fh>) {
5370 my $x = $_;
5371 next unless $x =~ s#^refs/remotes/##;
5372 chomp $x;
5373 next unless -f "$git_dir/$x/info/url";
5374 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
5375 next unless $u;
5376 my $dn = dirname("$git_dir/svn/$x");
5377 mkpath([$dn]) unless -d $dn;
5378 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
5379 mkpath(["$git_dir/svn/svn"]);
5380 print STDERR " - $git_dir/$x/info => ",
5381 "$git_dir/svn/$x/info\n";
5382 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
5383 croak "$!: $x";
5384 # don't worry too much about these, they probably
5385 # don't exist with repos this old (save for index,
5386 # and we can easily regenerate that)
5387 foreach my $f (qw/unhandled.log index .rev_db/) {
5388 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
5389 }
5390 } else {
5391 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
5392 rename "$git_dir/$x", "$git_dir/svn/$x" or
5393 croak "$!: $x";
5394 }
5395 $migrated++;
5396 }
5397 command_close_pipe($fh, $ctx);
5398 print STDERR "Done migrating from a git-svn v1 layout\n";
5399 $migrated;
5400 }
5401
5402 sub read_old_urls {
5403 my ($l_map, $pfx, $path) = @_;
5404 my @dir;
5405 foreach (<$path/*>) {
5406 if (-r "$_/info/url") {
5407 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
5408 my $ref_id = $pfx . basename $_;
5409 my $url = ::file_to_s("$_/info/url");
5410 $l_map->{$ref_id} = $url;
5411 } elsif (-d $_) {
5412 push @dir, $_;
5413 }
5414 }
5415 foreach (@dir) {
5416 my $x = $_;
5417 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
5418 read_old_urls($l_map, $x, $_);
5419 }
5420 }
5421
5422 sub migrate_from_v2 {
5423 my @cfg = command(qw/config -l/);
5424 return if grep /^svn-remote\..+\.url=/, @cfg;
5425 my %l_map;
5426 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
5427 my $migrated = 0;
5428
5429 foreach my $ref_id (sort keys %l_map) {
5430 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
5431 if ($@) {
5432 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
5433 }
5434 $migrated++;
5435 }
5436 $migrated;
5437 }
5438
5439 sub minimize_connections {
5440 my $r = Git::SVN::read_all_remotes();
5441 my $new_urls = {};
5442 my $root_repos = {};
5443 foreach my $repo_id (keys %$r) {
5444 my $url = $r->{$repo_id}->{url} or next;
5445 my $fetch = $r->{$repo_id}->{fetch} or next;
5446 my $ra = Git::SVN::Ra->new($url);
5447
5448 # skip existing cases where we already connect to the root
5449 if (($ra->{url} eq $ra->{repos_root}) ||
5450 ($ra->{repos_root} eq $repo_id)) {
5451 $root_repos->{$ra->{url}} = $repo_id;
5452 next;
5453 }
5454
5455 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
5456 my $root_path = $ra->{url};
5457 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
5458 foreach my $path (keys %$fetch) {
5459 my $ref_id = $fetch->{$path};
5460 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
5461
5462 # make sure we can read when connecting to
5463 # a higher level of a repository
5464 my ($last_rev, undef) = $gs->last_rev_commit;
5465 if (!defined $last_rev) {
5466 $last_rev = eval {
5467 $root_ra->get_latest_revnum;
5468 };
5469 next if $@;
5470 }
5471 my $new = $root_path;
5472 $new .= length $path ? "/$path" : '';
5473 eval {
5474 $root_ra->get_log([$new], $last_rev, $last_rev,
5475 0, 0, 1, sub { });
5476 };
5477 next if $@;
5478 $new_urls->{$ra->{repos_root}}->{$new} =
5479 { ref_id => $ref_id,
5480 old_repo_id => $repo_id,
5481 old_path => $path };
5482 }
5483 }
5484
5485 my @emptied;
5486 foreach my $url (keys %$new_urls) {
5487 # see if we can re-use an existing [svn-remote "repo_id"]
5488 # instead of creating a(n ugly) new section:
5489 my $repo_id = $root_repos->{$url} || $url;
5490
5491 my $fetch = $new_urls->{$url};
5492 foreach my $path (keys %$fetch) {
5493 my $x = $fetch->{$path};
5494 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
5495 my $pfx = "svn-remote.$x->{old_repo_id}";
5496
5497 my $old_fetch = quotemeta("$x->{old_path}:".
5498 "refs/remotes/$x->{ref_id}");
5499 command_noisy(qw/config --unset/,
5500 "$pfx.fetch", '^'. $old_fetch . '$');
5501 delete $r->{$x->{old_repo_id}}->
5502 {fetch}->{$x->{old_path}};
5503 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
5504 command_noisy(qw/config --unset/,
5505 "$pfx.url");
5506 push @emptied, $x->{old_repo_id}
5507 }
5508 }
5509 }
5510 if (@emptied) {
5511 my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config";
5512 print STDERR <<EOF;
5513 The following [svn-remote] sections in your config file ($file) are empty
5514 and can be safely removed:
5515 EOF
5516 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
5517 }
5518 }
5519
5520 sub migration_check {
5521 migrate_from_v0();
5522 migrate_from_v1();
5523 migrate_from_v2();
5524 minimize_connections() if $_minimize;
5525 }
5526
5527 package Git::IndexInfo;
5528 use strict;
5529 use warnings;
5530 use Git qw/command_input_pipe command_close_pipe/;
5531
5532 sub new {
5533 my ($class) = @_;
5534 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
5535 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
5536 }
5537
5538 sub remove {
5539 my ($self, $path) = @_;
5540 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
5541 return ++$self->{nr};
5542 }
5543 undef;
5544 }
5545
5546 sub update {
5547 my ($self, $mode, $hash, $path) = @_;
5548 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
5549 return ++$self->{nr};
5550 }
5551 undef;
5552 }
5553
5554 sub DESTROY {
5555 my ($self) = @_;
5556 command_close_pipe($self->{gui}, $self->{ctx});
5557 }
5558
5559 package Git::SVN::GlobSpec;
5560 use strict;
5561 use warnings;
5562
5563 sub new {
5564 my ($class, $glob) = @_;
5565 my $re = $glob;
5566 $re =~ s!/+$!!g; # no need for trailing slashes
5567 $re =~ m!^([^*]*)(\*(?:/\*)*)([^*]*)$!;
5568 my $temp = $re;
5569 my ($left, $right) = ($1, $3);
5570 $re = $2;
5571 my $depth = $re =~ tr/*/*/;
5572 if ($depth != $temp =~ tr/*/*/) {
5573 die "Only one set of wildcard directories " .
5574 "(e.g. '*' or '*/*/*') is supported: '$glob'\n";
5575 }
5576 if ($depth == 0) {
5577 die "One '*' is needed for glob: '$glob'\n";
5578 }
5579 $re =~ s!\*!\[^/\]*!g;
5580 $re = quotemeta($left) . "($re)" . quotemeta($right);
5581 if (length $left && !($left =~ s!/+$!!g)) {
5582 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
5583 }
5584 if (length $right && !($right =~ s!^/+!!g)) {
5585 die "Missing leading '/' on right side of: '$glob' ($right)\n";
5586 }
5587 my $left_re = qr/^\/\Q$left\E(\/|$)/;
5588 bless { left => $left, right => $right, left_regex => $left_re,
5589 regex => qr/$re/, glob => $glob, depth => $depth }, $class;
5590 }
5591
5592 sub full_path {
5593 my ($self, $path) = @_;
5594 return (length $self->{left} ? "$self->{left}/" : '') .
5595 $path . (length $self->{right} ? "/$self->{right}" : '');
5596 }
5597
5598 __END__
5599
5600 Data structures:
5601
5602
5603 $remotes = { # returned by read_all_remotes()
5604 'svn' => {
5605 # svn-remote.svn.url=https://svn.musicpd.org
5606 url => 'https://svn.musicpd.org',
5607 # svn-remote.svn.fetch=mpd/trunk:trunk
5608 fetch => {
5609 'mpd/trunk' => 'trunk',
5610 },
5611 # svn-remote.svn.tags=mpd/tags/*:tags/*
5612 tags => {
5613 path => {
5614 left => 'mpd/tags',
5615 right => '',
5616 regex => qr!mpd/tags/([^/]+)$!,
5617 glob => 'tags/*',
5618 },
5619 ref => {
5620 left => 'tags',
5621 right => '',
5622 regex => qr!tags/([^/]+)$!,
5623 glob => 'tags/*',
5624 },
5625 }
5626 }
5627 };
5628
5629 $log_entry hashref as returned by libsvn_log_entry()
5630 {
5631 log => 'whitespace-formatted log entry
5632 ', # trailing newline is preserved
5633 revision => '8', # integer
5634 date => '2004-02-24T17:01:44.108345Z', # commit date
5635 author => 'committer name'
5636 };
5637
5638
5639 # this is generated by generate_diff();
5640 @mods = array of diff-index line hashes, each element represents one line
5641 of diff-index output
5642
5643 diff-index line ($m hash)
5644 {
5645 mode_a => first column of diff-index output, no leading ':',
5646 mode_b => second column of diff-index output,
5647 sha1_b => sha1sum of the final blob,
5648 chg => change type [MCRADT],
5649 file_a => original file name of a file (iff chg is 'C' or 'R')
5650 file_b => new/current file name of a file (any chg)
5651 }
5652 ;
5653
5654 # retval of read_url_paths{,_all}();
5655 $l_map = {
5656 # repository root url
5657 'https://svn.musicpd.org' => {
5658 # repository path # GIT_SVN_ID
5659 'mpd/trunk' => 'trunk',
5660 'mpd/tags/0.11.5' => 'tags/0.11.5',
5661 },
5662 }
5663
5664 Notes:
5665 I don't trust the each() function on unless I created %hash myself
5666 because the internal iterator may not have started at base.
Dscho's miscellaneous git branches