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unpack_trees(): apply $GIT_DIR/info/sparse-checkout to the final index
[git/mjg.git] / git-svn.perl
blobb0bfb74792d775155221bc857bb117479d3cbca2
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 $s =~ s/^\n+//;
768 chomp $s;
769 $s =~ s#^#$path#gm;
770 print STDOUT "$s\n";
771 });
772 }
773
774 sub cmd_show_externals {
775 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
776 $gs ||= Git::SVN->new;
777 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
778 $gs->prop_walk($gs->{path}, $r, sub {
779 my ($gs, $path, $props) = @_;
780 print STDOUT "\n# $path\n";
781 my $s = $props->{'svn:externals'} or return;
782 $s =~ s/[\r\n]+/\n/g;
783 chomp $s;
784 $s =~ s#^#$path#gm;
785 print STDOUT "$s\n";
786 });
787 }
788
789 sub cmd_create_ignore {
790 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
791 $gs ||= Git::SVN->new;
792 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
793 $gs->prop_walk($gs->{path}, $r, sub {
794 my ($gs, $path, $props) = @_;
795 # $path is of the form /path/to/dir/
796 $path = '.' . $path;
797 # SVN can have attributes on empty directories,
798 # which git won't track
799 mkpath([$path]) unless -d $path;
800 my $ignore = $path . '.gitignore';
801 my $s = $props->{'svn:ignore'} or return;
802 open(GITIGNORE, '>', $ignore)
803 or fatal("Failed to open `$ignore' for writing: $!");
804 $s =~ s/[\r\n]+/\n/g;
805 $s =~ s/^\n+//;
806 chomp $s;
807 # Prefix all patterns so that the ignore doesn't apply
808 # to sub-directories.
809 $s =~ s#^#/#gm;
810 print GITIGNORE "$s\n";
811 close(GITIGNORE)
812 or fatal("Failed to close `$ignore': $!");
813 command_noisy('add', '-f', $ignore);
814 });
815 }
816
817 sub canonicalize_path {
818 my ($path) = @_;
819 my $dot_slash_added = 0;
820 if (substr($path, 0, 1) ne "/") {
821 $path = "./" . $path;
822 $dot_slash_added = 1;
823 }
824 # File::Spec->canonpath doesn't collapse x/../y into y (for a
825 # good reason), so let's do this manually.
826 $path =~ s#/+#/#g;
827 $path =~ s#/\.(?:/|$)#/#g;
828 $path =~ s#/[^/]+/\.\.##g;
829 $path =~ s#/$##g;
830 $path =~ s#^\./## if $dot_slash_added;
831 $path =~ s#^/##;
832 $path =~ s#^\.$##;
833 return $path;
834 }
835
836 sub canonicalize_url {
837 my ($url) = @_;
838 $url =~ s#^([^:]+://[^/]*/)(.*)$#$1 . canonicalize_path($2)#e;
839 return $url;
840 }
841
842 # get_svnprops(PATH)
843 # ------------------
844 # Helper for cmd_propget and cmd_proplist below.
845 sub get_svnprops {
846 my $path = shift;
847 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
848 $gs ||= Git::SVN->new;
849
850 # prefix THE PATH by the sub-directory from which the user
851 # invoked us.
852 $path = $cmd_dir_prefix . $path;
853 fatal("No such file or directory: $path") unless -e $path;
854 my $is_dir = -d $path ? 1 : 0;
855 $path = $gs->{path} . '/' . $path;
856
857 # canonicalize the path (otherwise libsvn will abort or fail to
858 # find the file)
859 $path = canonicalize_path($path);
860
861 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
862 my $props;
863 if ($is_dir) {
864 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
865 }
866 else {
867 (undef, $props) = $gs->ra->get_file($path, $r, undef);
868 }
869 return $props;
870 }
871
872 # cmd_propget (PROP, PATH)
873 # ------------------------
874 # Print the SVN property PROP for PATH.
875 sub cmd_propget {
876 my ($prop, $path) = @_;
877 $path = '.' if not defined $path;
878 usage(1) if not defined $prop;
879 my $props = get_svnprops($path);
880 if (not defined $props->{$prop}) {
881 fatal("`$path' does not have a `$prop' SVN property.");
882 }
883 print $props->{$prop} . "\n";
884 }
885
886 # cmd_proplist (PATH)
887 # -------------------
888 # Print the list of SVN properties for PATH.
889 sub cmd_proplist {
890 my $path = shift;
891 $path = '.' if not defined $path;
892 my $props = get_svnprops($path);
893 print "Properties on '$path':\n";
894 foreach (sort keys %{$props}) {
895 print " $_\n";
896 }
897 }
898
899 sub cmd_multi_init {
900 my $url = shift;
901 unless (defined $_trunk || @_branches || @_tags) {
902 usage(1);
903 }
904
905 $_prefix = '' unless defined $_prefix;
906 if (defined $url) {
907 $url = canonicalize_url($url);
908 init_subdir(@_);
909 }
910 do_git_init_db();
911 if (defined $_trunk) {
912 my $trunk_ref = $_prefix . 'trunk';
913 # try both old-style and new-style lookups:
914 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
915 unless ($gs_trunk) {
916 my ($trunk_url, $trunk_path) =
917 complete_svn_url($url, $_trunk);
918 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
919 undef, $trunk_ref);
920 }
921 }
922 return unless @_branches || @_tags;
923 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
924 foreach my $path (@_branches) {
925 complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
926 }
927 foreach my $path (@_tags) {
928 complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
929 }
930 }
931
932 sub cmd_multi_fetch {
933 my $remotes = Git::SVN::read_all_remotes();
934 foreach my $repo_id (sort keys %$remotes) {
935 if ($remotes->{$repo_id}->{url}) {
936 Git::SVN::fetch_all($repo_id, $remotes);
937 }
938 }
939 }
940
941 # this command is special because it requires no metadata
942 sub cmd_commit_diff {
943 my ($ta, $tb, $url) = @_;
944 my $usage = "Usage: $0 commit-diff -r<revision> ".
945 "<tree-ish> <tree-ish> [<URL>]";
946 fatal($usage) if (!defined $ta || !defined $tb);
947 my $svn_path = '';
948 if (!defined $url) {
949 my $gs = eval { Git::SVN->new };
950 if (!$gs) {
951 fatal("Needed URL or usable git-svn --id in ",
952 "the command-line\n", $usage);
953 }
954 $url = $gs->{url};
955 $svn_path = $gs->{path};
956 }
957 unless (defined $_revision) {
958 fatal("-r|--revision is a required argument\n", $usage);
959 }
960 if (defined $_message && defined $_file) {
961 fatal("Both --message/-m and --file/-F specified ",
962 "for the commit message.\n",
963 "I have no idea what you mean");
964 }
965 if (defined $_file) {
966 $_message = file_to_s($_file);
967 } else {
968 $_message ||= get_commit_entry($tb)->{log};
969 }
970 my $ra ||= Git::SVN::Ra->new($url);
971 my $r = $_revision;
972 if ($r eq 'HEAD') {
973 $r = $ra->get_latest_revnum;
974 } elsif ($r !~ /^\d+$/) {
975 die "revision argument: $r not understood by git-svn\n";
976 }
977 my %ed_opts = ( r => $r,
978 log => $_message,
979 ra => $ra,
980 tree_a => $ta,
981 tree_b => $tb,
982 editor_cb => sub { print "Committed r$_[0]\n" },
983 svn_path => $svn_path );
984 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
985 print "No changes\n$ta == $tb\n";
986 }
987 }
988
989 sub escape_uri_only {
990 my ($uri) = @_;
991 my @tmp;
992 foreach (split m{/}, $uri) {
993 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
994 push @tmp, $_;
995 }
996 join('/', @tmp);
997 }
998
999 sub escape_url {
1000 my ($url) = @_;
1001 if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) {
1002 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
1003 $url = "$scheme://$domain$uri";
1004 }
1005 $url;
1006 }
1007
1008 sub cmd_info {
1009 my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
1010 my $fullpath = canonicalize_path($cmd_dir_prefix . $path);
1011 if (exists $_[1]) {
1012 die "Too many arguments specified\n";
1013 }
1014
1015 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
1016
1017 if (!$file_type && !$diff_status) {
1018 print STDERR "svn: '$path' is not under version control\n";
1019 exit 1;
1020 }
1021
1022 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1023 unless ($gs) {
1024 die "Unable to determine upstream SVN information from ",
1025 "working tree history\n";
1026 }
1027
1028 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
1029 $path = "." if $path eq "";
1030
1031 my $full_url = $url . ($fullpath eq "" ? "" : "/$fullpath");
1032
1033 if ($_url) {
1034 print escape_url($full_url), "\n";
1035 return;
1036 }
1037
1038 my $result = "Path: $path\n";
1039 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
1040 $result .= "URL: " . escape_url($full_url) . "\n";
1041
1042 eval {
1043 my $repos_root = $gs->repos_root;
1044 Git::SVN::remove_username($repos_root);
1045 $result .= "Repository Root: " . escape_url($repos_root) . "\n";
1046 };
1047 if ($@) {
1048 $result .= "Repository Root: (offline)\n";
1049 }
1050 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
1051 ($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir");
1052 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
1053
1054 $result .= "Node Kind: " .
1055 ($file_type eq "dir" ? "directory" : "file") . "\n";
1056
1057 my $schedule = $diff_status eq "A"
1058 ? "add"
1059 : ($diff_status eq "D" ? "delete" : "normal");
1060 $result .= "Schedule: $schedule\n";
1061
1062 if ($diff_status eq "A") {
1063 print $result, "\n";
1064 return;
1065 }
1066
1067 my ($lc_author, $lc_rev, $lc_date_utc);
1068 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $fullpath);
1069 my $log = command_output_pipe(@args);
1070 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
1071 while (<$log>) {
1072 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
1073 $lc_author = $1;
1074 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
1075 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
1076 (undef, $lc_rev, undef) = ::extract_metadata($1);
1077 }
1078 }
1079 close $log;
1080
1081 Git::SVN::Log::set_local_timezone();
1082
1083 $result .= "Last Changed Author: $lc_author\n";
1084 $result .= "Last Changed Rev: $lc_rev\n";
1085 $result .= "Last Changed Date: " .
1086 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
1087
1088 if ($file_type ne "dir") {
1089 my $text_last_updated_date =
1090 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
1091 $result .=
1092 "Text Last Updated: " .
1093 Git::SVN::Log::format_svn_date($text_last_updated_date) .
1094 "\n";
1095 my $checksum;
1096 if ($diff_status eq "D") {
1097 my ($fh, $ctx) =
1098 command_output_pipe(qw(cat-file blob), "HEAD:$path");
1099 if ($file_type eq "link") {
1100 my $file_name = <$fh>;
1101 $checksum = md5sum("link $file_name");
1102 } else {
1103 $checksum = md5sum($fh);
1104 }
1105 command_close_pipe($fh, $ctx);
1106 } elsif ($file_type eq "link") {
1107 my $file_name =
1108 command(qw(cat-file blob), "HEAD:$path");
1109 $checksum =
1110 md5sum("link " . $file_name);
1111 } else {
1112 open FILE, "<", $path or die $!;
1113 $checksum = md5sum(\*FILE);
1114 close FILE or die $!;
1115 }
1116 $result .= "Checksum: " . $checksum . "\n";
1117 }
1118
1119 print $result, "\n";
1120 }
1121
1122 sub cmd_reset {
1123 my $target = shift || $_revision or die "SVN revision required\n";
1124 $target = $1 if $target =~ /^r(\d+)$/;
1125 $target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
1126 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1127 unless ($gs) {
1128 die "Unable to determine upstream SVN information from ".
1129 "history\n";
1130 }
1131 my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
1132 $gs->rev_map_set($r, $c, 'reset', $uuid);
1133 print "r$r = $c ($gs->{ref_id})\n";
1134 }
1135
1136 sub cmd_gc {
1137 if (!$can_compress) {
1138 warn "Compress::Zlib could not be found; unhandled.log " .
1139 "files will not be compressed.\n";
1140 }
1141 find({ wanted => \&gc_directory, no_chdir => 1}, "$ENV{GIT_DIR}/svn");
1142 }
1143
1144 ########################### utility functions #########################
1145
1146 sub rebase_cmd {
1147 my @cmd = qw/rebase/;
1148 push @cmd, '-v' if $_verbose;
1149 push @cmd, qw/--merge/ if $_merge;
1150 push @cmd, "--strategy=$_strategy" if $_strategy;
1151 @cmd;
1152 }
1153
1154 sub post_fetch_checkout {
1155 return if $_no_checkout;
1156 my $gs = $Git::SVN::_head or return;
1157 return if verify_ref('refs/heads/master^0');
1158
1159 my $valid_head = verify_ref('HEAD^0');
1160 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
1161 return if ($valid_head || !verify_ref('HEAD^0'));
1162
1163 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
1164 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
1165 return if -f $index;
1166
1167 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
1168 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
1169 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
1170 print STDERR "Checked out HEAD:\n ",
1171 $gs->full_url, " r", $gs->last_rev, "\n";
1172 }
1173
1174 sub complete_svn_url {
1175 my ($url, $path) = @_;
1176 $path =~ s#/+$##;
1177 if ($path !~ m#^[a-z\+]+://#) {
1178 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
1179 fatal("E: '$path' is not a complete URL ",
1180 "and a separate URL is not specified");
1181 }
1182 return ($url, $path);
1183 }
1184 return ($path, '');
1185 }
1186
1187 sub complete_url_ls_init {
1188 my ($ra, $repo_path, $switch, $pfx) = @_;
1189 unless ($repo_path) {
1190 print STDERR "W: $switch not specified\n";
1191 return;
1192 }
1193 $repo_path =~ s#/+$##;
1194 if ($repo_path =~ m#^[a-z\+]+://#) {
1195 $ra = Git::SVN::Ra->new($repo_path);
1196 $repo_path = '';
1197 } else {
1198 $repo_path =~ s#^/+##;
1199 unless ($ra) {
1200 fatal("E: '$repo_path' is not a complete URL ",
1201 "and a separate URL is not specified");
1202 }
1203 }
1204 my $url = $ra->{url};
1205 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
1206 my $k = "svn-remote.$gs->{repo_id}.url";
1207 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
1208 if ($orig_url && ($orig_url ne $gs->{url})) {
1209 die "$k already set: $orig_url\n",
1210 "wanted to set to: $gs->{url}\n";
1211 }
1212 command_oneline('config', $k, $gs->{url}) unless $orig_url;
1213 my $remote_path = "$gs->{path}/$repo_path";
1214 $remote_path =~ s#/+#/#g;
1215 $remote_path =~ s#^/##g;
1216 $remote_path .= "/*" if $remote_path !~ /\*/;
1217 my ($n) = ($switch =~ /^--(\w+)/);
1218 if (length $pfx && $pfx !~ m#/$#) {
1219 die "--prefix='$pfx' must have a trailing slash '/'\n";
1220 }
1221 command_noisy('config',
1222 '--add',
1223 "svn-remote.$gs->{repo_id}.$n",
1224 "$remote_path:refs/remotes/$pfx*" .
1225 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
1226 }
1227
1228 sub verify_ref {
1229 my ($ref) = @_;
1230 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1231 { STDERR => 0 }); };
1232 }
1233
1234 sub get_tree_from_treeish {
1235 my ($treeish) = @_;
1236 # $treeish can be a symbolic ref, too:
1237 my $type = command_oneline(qw/cat-file -t/, $treeish);
1238 my $expected;
1239 while ($type eq 'tag') {
1240 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1241 }
1242 if ($type eq 'commit') {
1243 $expected = (grep /^tree /, command(qw/cat-file commit/,
1244 $treeish))[0];
1245 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1246 die "Unable to get tree from $treeish\n" unless $expected;
1247 } elsif ($type eq 'tree') {
1248 $expected = $treeish;
1249 } else {
1250 die "$treeish is a $type, expected tree, tag or commit\n";
1251 }
1252 return $expected;
1253 }
1254
1255 sub get_commit_entry {
1256 my ($treeish) = shift;
1257 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1258 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1259 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1260 open my $log_fh, '>', $commit_editmsg or croak $!;
1261
1262 my $type = command_oneline(qw/cat-file -t/, $treeish);
1263 if ($type eq 'commit' || $type eq 'tag') {
1264 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1265 $type, $treeish);
1266 my $in_msg = 0;
1267 my $author;
1268 my $saw_from = 0;
1269 my $msgbuf = "";
1270 while (<$msg_fh>) {
1271 if (!$in_msg) {
1272 $in_msg = 1 if (/^\s*$/);
1273 $author = $1 if (/^author (.*>)/);
1274 } elsif (/^git-svn-id: /) {
1275 # skip this for now, we regenerate the
1276 # correct one on re-fetch anyways
1277 # TODO: set *:merge properties or like...
1278 } else {
1279 if (/^From:/ || /^Signed-off-by:/) {
1280 $saw_from = 1;
1281 }
1282 $msgbuf .= $_;
1283 }
1284 }
1285 $msgbuf =~ s/\s+$//s;
1286 if ($Git::SVN::_add_author_from && defined($author)
1287 && !$saw_from) {
1288 $msgbuf .= "\n\nFrom: $author";
1289 }
1290 print $log_fh $msgbuf or croak $!;
1291 command_close_pipe($msg_fh, $ctx);
1292 }
1293 close $log_fh or croak $!;
1294
1295 if ($_edit || ($type eq 'tree')) {
1296 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1297 # TODO: strip out spaces, comments, like git-commit.sh
1298 system($editor, $commit_editmsg);
1299 }
1300 rename $commit_editmsg, $commit_msg or croak $!;
1301 {
1302 require Encode;
1303 # SVN requires messages to be UTF-8 when entering the repo
1304 local $/;
1305 open $log_fh, '<', $commit_msg or croak $!;
1306 binmode $log_fh;
1307 chomp($log_entry{log} = <$log_fh>);
1308
1309 my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
1310 my $msg = $log_entry{log};
1311
1312 eval { $msg = Encode::decode($enc, $msg, 1) };
1313 if ($@) {
1314 die "Could not decode as $enc:\n", $msg,
1315 "\nPerhaps you need to set i18n.commitencoding\n";
1316 }
1317
1318 eval { $msg = Encode::encode('UTF-8', $msg, 1) };
1319 die "Could not encode as UTF-8:\n$msg\n" if $@;
1320
1321 $log_entry{log} = $msg;
1322
1323 close $log_fh or croak $!;
1324 }
1325 unlink $commit_msg;
1326 \%log_entry;
1327 }
1328
1329 sub s_to_file {
1330 my ($str, $file, $mode) = @_;
1331 open my $fd,'>',$file or croak $!;
1332 print $fd $str,"\n" or croak $!;
1333 close $fd or croak $!;
1334 chmod ($mode &~ umask, $file) if (defined $mode);
1335 }
1336
1337 sub file_to_s {
1338 my $file = shift;
1339 open my $fd,'<',$file or croak "$!: file: $file\n";
1340 local $/;
1341 my $ret = <$fd>;
1342 close $fd or croak $!;
1343 $ret =~ s/\s*$//s;
1344 return $ret;
1345 }
1346
1347 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1348 sub load_authors {
1349 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1350 my $log = $cmd eq 'log';
1351 while (<$authors>) {
1352 chomp;
1353 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1354 my ($user, $name, $email) = ($1, $2, $3);
1355 if ($log) {
1356 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1357 } else {
1358 $users{$user} = [$name, $email];
1359 }
1360 }
1361 close $authors or croak $!;
1362 }
1363
1364 # convert GetOpt::Long specs for use by git-config
1365 sub read_repo_config {
1366 return unless -d $ENV{GIT_DIR};
1367 my $opts = shift;
1368 my @config_only;
1369 foreach my $o (keys %$opts) {
1370 # if we have mixedCase and a long option-only, then
1371 # it's a config-only variable that we don't need for
1372 # the command-line.
1373 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1374 my $v = $opts->{$o};
1375 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1376 $key =~ s/-//g;
1377 my $arg = 'git config';
1378 $arg .= ' --int' if ($o =~ /[:=]i$/);
1379 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1380 if (ref $v eq 'ARRAY') {
1381 chomp(my @tmp = `$arg --get-all svn.$key`);
1382 @$v = @tmp if @tmp;
1383 } else {
1384 chomp(my $tmp = `$arg --get svn.$key`);
1385 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1386 $$v = $tmp;
1387 }
1388 }
1389 }
1390 delete @$opts{@config_only} if @config_only;
1391 }
1392
1393 sub extract_metadata {
1394 my $id = shift or return (undef, undef, undef);
1395 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1396 \s([a-f\d\-]+)$/ix);
1397 if (!defined $rev || !$uuid || !$url) {
1398 # some of the original repositories I made had
1399 # identifiers like this:
1400 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
1401 }
1402 return ($url, $rev, $uuid);
1403 }
1404
1405 sub cmt_metadata {
1406 return extract_metadata((grep(/^git-svn-id: /,
1407 command(qw/cat-file commit/, shift)))[-1]);
1408 }
1409
1410 sub cmt_sha2rev_batch {
1411 my %s2r;
1412 my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
1413 my $list = shift;
1414
1415 foreach my $sha (@{$list}) {
1416 my $first = 1;
1417 my $size = 0;
1418 print $out $sha, "\n";
1419
1420 while (my $line = <$in>) {
1421 if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) {
1422 last;
1423 } elsif ($first &&
1424 $line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) {
1425 $first = 0;
1426 $size = $1;
1427 next;
1428 } elsif ($line =~ /^(git-svn-id: )/) {
1429 my (undef, $rev, undef) =
1430 extract_metadata($line);
1431 $s2r{$sha} = $rev;
1432 }
1433
1434 $size -= length($line);
1435 last if ($size == 0);
1436 }
1437 }
1438
1439 command_close_bidi_pipe($pid, $in, $out, $ctx);
1440
1441 return \%s2r;
1442 }
1443
1444 sub working_head_info {
1445 my ($head, $refs) = @_;
1446 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1447 my ($fh, $ctx) = command_output_pipe(@args, $head);
1448 my $hash;
1449 my %max;
1450 while (<$fh>) {
1451 if ( m{^commit ($::sha1)$} ) {
1452 unshift @$refs, $hash if $hash and $refs;
1453 $hash = $1;
1454 next;
1455 }
1456 next unless s{^\s*(git-svn-id:)}{$1};
1457 my ($url, $rev, $uuid) = extract_metadata($_);
1458 if (defined $url && defined $rev) {
1459 next if $max{$url} and $max{$url} < $rev;
1460 if (my $gs = Git::SVN->find_by_url($url)) {
1461 my $c = $gs->rev_map_get($rev, $uuid);
1462 if ($c && $c eq $hash) {
1463 close $fh; # break the pipe
1464 return ($url, $rev, $uuid, $gs);
1465 } else {
1466 $max{$url} ||= $gs->rev_map_max;
1467 }
1468 }
1469 }
1470 }
1471 command_close_pipe($fh, $ctx);
1472 (undef, undef, undef, undef);
1473 }
1474
1475 sub read_commit_parents {
1476 my ($parents, $c) = @_;
1477 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1478 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1479 @{$parents->{$c}} = split(/ /, $p);
1480 }
1481
1482 sub linearize_history {
1483 my ($gs, $refs) = @_;
1484 my %parents;
1485 foreach my $c (@$refs) {
1486 read_commit_parents(\%parents, $c);
1487 }
1488
1489 my @linear_refs;
1490 my %skip = ();
1491 my $last_svn_commit = $gs->last_commit;
1492 foreach my $c (reverse @$refs) {
1493 next if $c eq $last_svn_commit;
1494 last if $skip{$c};
1495
1496 unshift @linear_refs, $c;
1497 $skip{$c} = 1;
1498
1499 # we only want the first parent to diff against for linear
1500 # history, we save the rest to inject when we finalize the
1501 # svn commit
1502 my $fp_a = verify_ref("$c~1");
1503 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1504 if (!$fp_a || !$fp_b) {
1505 die "Commit $c\n",
1506 "has no parent commit, and therefore ",
1507 "nothing to diff against.\n",
1508 "You should be working from a repository ",
1509 "originally created by git-svn\n";
1510 }
1511 if ($fp_a ne $fp_b) {
1512 die "$c~1 = $fp_a, however parsing commit $c ",
1513 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1514 }
1515
1516 foreach my $p (@{$parents{$c}}) {
1517 $skip{$p} = 1;
1518 }
1519 }
1520 (\@linear_refs, \%parents);
1521 }
1522
1523 sub find_file_type_and_diff_status {
1524 my ($path) = @_;
1525 return ('dir', '') if $path eq '';
1526
1527 my $diff_output =
1528 command_oneline(qw(diff --cached --name-status --), $path) || "";
1529 my $diff_status = (split(' ', $diff_output))[0] || "";
1530
1531 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1532
1533 return (undef, undef) if !$diff_status && !$ls_tree;
1534
1535 if ($diff_status eq "A") {
1536 return ("link", $diff_status) if -l $path;
1537 return ("dir", $diff_status) if -d $path;
1538 return ("file", $diff_status);
1539 }
1540
1541 my $mode = (split(' ', $ls_tree))[0] || "";
1542
1543 return ("link", $diff_status) if $mode eq "120000";
1544 return ("dir", $diff_status) if $mode eq "040000";
1545 return ("file", $diff_status);
1546 }
1547
1548 sub md5sum {
1549 my $arg = shift;
1550 my $ref = ref $arg;
1551 my $md5 = Digest::MD5->new();
1552 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
1553 $md5->addfile($arg) or croak $!;
1554 } elsif ($ref eq 'SCALAR') {
1555 $md5->add($$arg) or croak $!;
1556 } elsif (!$ref) {
1557 $md5->add($arg) or croak $!;
1558 } else {
1559 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1560 }
1561 return $md5->hexdigest();
1562 }
1563
1564 sub gc_directory {
1565 if ($can_compress && -f $_ && basename($_) eq "unhandled.log") {
1566 my $out_filename = $_ . ".gz";
1567 open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
1568 binmode $in_fh;
1569 my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
1570 die "Unable to open $out_filename: $!\n";
1571
1572 my $res;
1573 while ($res = sysread($in_fh, my $str, 1024)) {
1574 $gz->gzwrite($str) or
1575 die "Unable to write: ".$gz->gzerror()."!\n";
1576 }
1577 unlink $_ or die "unlink $File::Find::name: $!\n";
1578 } elsif (-f $_ && basename($_) eq "index") {
1579 unlink $_ or die "unlink $_: $!\n";
1580 }
1581 }
1582
1583 package Git::SVN;
1584 use strict;
1585 use warnings;
1586 use Fcntl qw/:DEFAULT :seek/;
1587 use constant rev_map_fmt => 'NH40';
1588 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1589 $_repack $_repack_flags $_use_svm_props $_head
1590 $_use_svnsync_props $no_reuse_existing $_minimize_url
1591 $_use_log_author $_add_author_from $_localtime/;
1592 use Carp qw/croak/;
1593 use File::Path qw/mkpath/;
1594 use File::Copy qw/copy/;
1595 use IPC::Open3;
1596
1597 my ($_gc_nr, $_gc_period);
1598
1599 # properties that we do not log:
1600 my %SKIP_PROP;
1601 BEGIN {
1602 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1603 svn:special svn:executable
1604 svn:entry:committed-rev
1605 svn:entry:last-author
1606 svn:entry:uuid
1607 svn:entry:committed-date/;
1608
1609 # some options are read globally, but can be overridden locally
1610 # per [svn-remote "..."] section. Command-line options will *NOT*
1611 # override options set in an [svn-remote "..."] section
1612 no strict 'refs';
1613 for my $option (qw/follow_parent no_metadata use_svm_props
1614 use_svnsync_props/) {
1615 my $key = $option;
1616 $key =~ tr/_//d;
1617 my $prop = "-$option";
1618 *$option = sub {
1619 my ($self) = @_;
1620 return $self->{$prop} if exists $self->{$prop};
1621 my $k = "svn-remote.$self->{repo_id}.$key";
1622 eval { command_oneline(qw/config --get/, $k) };
1623 if ($@) {
1624 $self->{$prop} = ${"Git::SVN::_$option"};
1625 } else {
1626 my $v = command_oneline(qw/config --bool/,$k);
1627 $self->{$prop} = $v eq 'false' ? 0 : 1;
1628 }
1629 return $self->{$prop};
1630 }
1631 }
1632 }
1633
1634
1635 my (%LOCKFILES, %INDEX_FILES);
1636 END {
1637 unlink keys %LOCKFILES if %LOCKFILES;
1638 unlink keys %INDEX_FILES if %INDEX_FILES;
1639 }
1640
1641 sub resolve_local_globs {
1642 my ($url, $fetch, $glob_spec) = @_;
1643 return unless defined $glob_spec;
1644 my $ref = $glob_spec->{ref};
1645 my $path = $glob_spec->{path};
1646 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
1647 next unless m#^refs/remotes/$ref->{regex}$#;
1648 my $p = $1;
1649 my $pathname = desanitize_refname($path->full_path($p));
1650 my $refname = desanitize_refname($ref->full_path($p));
1651 if (my $existing = $fetch->{$pathname}) {
1652 if ($existing ne $refname) {
1653 die "Refspec conflict:\n",
1654 "existing: refs/remotes/$existing\n",
1655 " globbed: refs/remotes/$refname\n";
1656 }
1657 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
1658 $u =~ s!^\Q$url\E(/|$)!! or die
1659 "refs/remotes/$refname: '$url' not found in '$u'\n";
1660 if ($pathname ne $u) {
1661 warn "W: Refspec glob conflict ",
1662 "(ref: refs/remotes/$refname):\n",
1663 "expected path: $pathname\n",
1664 " real path: $u\n",
1665 "Continuing ahead with $u\n";
1666 next;
1667 }
1668 } else {
1669 $fetch->{$pathname} = $refname;
1670 }
1671 }
1672 }
1673
1674 sub parse_revision_argument {
1675 my ($base, $head) = @_;
1676 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1677 return ($base, $head);
1678 }
1679 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1680 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1681 return ($head, $head) if ($::_revision eq 'HEAD');
1682 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1683 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1684 die "revision argument: $::_revision not understood by git-svn\n";
1685 }
1686
1687 sub fetch_all {
1688 my ($repo_id, $remotes) = @_;
1689 if (ref $repo_id) {
1690 my $gs = $repo_id;
1691 $repo_id = undef;
1692 $repo_id = $gs->{repo_id};
1693 }
1694 $remotes ||= read_all_remotes();
1695 my $remote = $remotes->{$repo_id} or
1696 die "[svn-remote \"$repo_id\"] unknown\n";
1697 my $fetch = $remote->{fetch};
1698 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1699 my (@gs, @globs);
1700 my $ra = Git::SVN::Ra->new($url);
1701 my $uuid = $ra->get_uuid;
1702 my $head = $ra->get_latest_revnum;
1703 $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] });
1704 my $base = defined $fetch ? $head : 0;
1705
1706 # read the max revs for wildcard expansion (branches/*, tags/*)
1707 foreach my $t (qw/branches tags/) {
1708 defined $remote->{$t} or next;
1709 push @globs, @{$remote->{$t}};
1710
1711 my $max_rev = eval { tmp_config(qw/--int --get/,
1712 "svn-remote.$repo_id.${t}-maxRev") };
1713 if (defined $max_rev && ($max_rev < $base)) {
1714 $base = $max_rev;
1715 } elsif (!defined $max_rev) {
1716 $base = 0;
1717 }
1718 }
1719
1720 if ($fetch) {
1721 foreach my $p (sort keys %$fetch) {
1722 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1723 my $lr = $gs->rev_map_max;
1724 if (defined $lr) {
1725 $base = $lr if ($lr < $base);
1726 }
1727 push @gs, $gs;
1728 }
1729 }
1730
1731 ($base, $head) = parse_revision_argument($base, $head);
1732 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1733 }
1734
1735 sub read_all_remotes {
1736 my $r = {};
1737 my $use_svm_props = eval { command_oneline(qw/config --bool
1738 svn.useSvmProps/) };
1739 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
1740 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1741 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*(.+)\s*$!) {
1742 my ($remote, $local_ref, $_remote_ref) = ($1, $2, $3);
1743 die("svn-remote.$remote: remote ref '$_remote_ref' "
1744 . "must start with 'refs/remotes/'\n")
1745 unless $_remote_ref =~ m{^refs/remotes/(.+)};
1746 my $remote_ref = $1;
1747 $local_ref =~ s{^/}{};
1748 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1749 $r->{$remote}->{svm} = {} if $use_svm_props;
1750 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
1751 $r->{$1}->{svm} = {};
1752 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1753 $r->{$1}->{url} = $2;
1754 } elsif (m!^(.+)\.(branches|tags)=
1755 (.*):refs/remotes/(.+)\s*$/!x) {
1756 my ($p, $g) = ($3, $4);
1757 my $rs = {
1758 t => $2,
1759 remote => $1,
1760 path => Git::SVN::GlobSpec->new($p),
1761 ref => Git::SVN::GlobSpec->new($g) };
1762 if (length($rs->{ref}->{right}) != 0) {
1763 die "The '*' glob character must be the last ",
1764 "character of '$g'\n";
1765 }
1766 push @{ $r->{$1}->{$2} }, $rs;
1767 }
1768 }
1769
1770 map {
1771 if (defined $r->{$_}->{svm}) {
1772 my $svm;
1773 eval {
1774 my $section = "svn-remote.$_";
1775 $svm = {
1776 source => tmp_config('--get',
1777 "$section.svm-source"),
1778 replace => tmp_config('--get',
1779 "$section.svm-replace"),
1780 }
1781 };
1782 $r->{$_}->{svm} = $svm;
1783 }
1784 } keys %$r;
1785
1786 $r;
1787 }
1788
1789 sub init_vars {
1790 $_gc_nr = $_gc_period = 1000;
1791 if (defined $_repack || defined $_repack_flags) {
1792 warn "Repack options are obsolete; they have no effect.\n";
1793 }
1794 }
1795
1796 sub verify_remotes_sanity {
1797 return unless -d $ENV{GIT_DIR};
1798 my %seen;
1799 foreach (command(qw/config -l/)) {
1800 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1801 if ($seen{$1}) {
1802 die "Remote ref refs/remote/$1 is tracked by",
1803 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1804 "Please resolve this ambiguity in ",
1805 "your git configuration file before ",
1806 "continuing\n";
1807 }
1808 $seen{$1} = $_;
1809 }
1810 }
1811 }
1812
1813 sub find_existing_remote {
1814 my ($url, $remotes) = @_;
1815 return undef if $no_reuse_existing;
1816 my $existing;
1817 foreach my $repo_id (keys %$remotes) {
1818 my $u = $remotes->{$repo_id}->{url} or next;
1819 next if $u ne $url;
1820 $existing = $repo_id;
1821 last;
1822 }
1823 $existing;
1824 }
1825
1826 sub init_remote_config {
1827 my ($self, $url, $no_write) = @_;
1828 $url =~ s!/+$!!; # strip trailing slash
1829 my $r = read_all_remotes();
1830 my $existing = find_existing_remote($url, $r);
1831 if ($existing) {
1832 unless ($no_write) {
1833 print STDERR "Using existing ",
1834 "[svn-remote \"$existing\"]\n";
1835 }
1836 $self->{repo_id} = $existing;
1837 } elsif ($_minimize_url) {
1838 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1839 $existing = find_existing_remote($min_url, $r);
1840 if ($existing) {
1841 unless ($no_write) {
1842 print STDERR "Using existing ",
1843 "[svn-remote \"$existing\"]\n";
1844 }
1845 $self->{repo_id} = $existing;
1846 }
1847 if ($min_url ne $url) {
1848 unless ($no_write) {
1849 print STDERR "Using higher level of URL: ",
1850 "$url => $min_url\n";
1851 }
1852 my $old_path = $self->{path};
1853 $self->{path} = $url;
1854 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1855 if (length $old_path) {
1856 $self->{path} .= "/$old_path";
1857 }
1858 $url = $min_url;
1859 }
1860 }
1861 my $orig_url;
1862 if (!$existing) {
1863 # verify that we aren't overwriting anything:
1864 $orig_url = eval {
1865 command_oneline('config', '--get',
1866 "svn-remote.$self->{repo_id}.url")
1867 };
1868 if ($orig_url && ($orig_url ne $url)) {
1869 die "svn-remote.$self->{repo_id}.url already set: ",
1870 "$orig_url\nwanted to set to: $url\n";
1871 }
1872 }
1873 my ($xrepo_id, $xpath) = find_ref($self->refname);
1874 if (defined $xpath) {
1875 die "svn-remote.$xrepo_id.fetch already set to track ",
1876 "$xpath:refs/remotes/", $self->refname, "\n";
1877 }
1878 unless ($no_write) {
1879 command_noisy('config',
1880 "svn-remote.$self->{repo_id}.url", $url);
1881 $self->{path} =~ s{^/}{};
1882 command_noisy('config', '--add',
1883 "svn-remote.$self->{repo_id}.fetch",
1884 "$self->{path}:".$self->refname);
1885 }
1886 $self->{url} = $url;
1887 }
1888
1889 sub find_by_url { # repos_root and, path are optional
1890 my ($class, $full_url, $repos_root, $path) = @_;
1891
1892 return undef unless defined $full_url;
1893 remove_username($full_url);
1894 remove_username($repos_root) if defined $repos_root;
1895 my $remotes = read_all_remotes();
1896 if (defined $full_url && defined $repos_root && !defined $path) {
1897 $path = $full_url;
1898 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1899 }
1900 foreach my $repo_id (keys %$remotes) {
1901 my $u = $remotes->{$repo_id}->{url} or next;
1902 remove_username($u);
1903 next if defined $repos_root && $repos_root ne $u;
1904
1905 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1906 foreach my $t (qw/branches tags/) {
1907 foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) {
1908 resolve_local_globs($u, $fetch, $globspec);
1909 }
1910 }
1911 my $p = $path;
1912 my $rwr = rewrite_root({repo_id => $repo_id});
1913 my $svm = $remotes->{$repo_id}->{svm}
1914 if defined $remotes->{$repo_id}->{svm};
1915 unless (defined $p) {
1916 $p = $full_url;
1917 my $z = $u;
1918 my $prefix = '';
1919 if ($rwr) {
1920 $z = $rwr;
1921 remove_username($z);
1922 } elsif (defined $svm) {
1923 $z = $svm->{source};
1924 $prefix = $svm->{replace};
1925 $prefix =~ s#^\Q$u\E(?:/|$)##;
1926 $prefix =~ s#/$##;
1927 }
1928 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
1929 }
1930 foreach my $f (keys %$fetch) {
1931 next if $f ne $p;
1932 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1933 }
1934 }
1935 undef;
1936 }
1937
1938 sub init {
1939 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1940 my $self = _new($class, $repo_id, $ref_id, $path);
1941 if (defined $url) {
1942 $self->init_remote_config($url, $no_write);
1943 }
1944 $self;
1945 }
1946
1947 sub find_ref {
1948 my ($ref_id) = @_;
1949 foreach (command(qw/config -l/)) {
1950 next unless m!^svn-remote\.(.+)\.fetch=
1951 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1952 my ($repo_id, $path, $ref) = ($1, $2, $3);
1953 if ($ref eq $ref_id) {
1954 $path = '' if ($path =~ m#^\./?#);
1955 return ($repo_id, $path);
1956 }
1957 }
1958 (undef, undef, undef);
1959 }
1960
1961 sub new {
1962 my ($class, $ref_id, $repo_id, $path) = @_;
1963 if (defined $ref_id && !defined $repo_id && !defined $path) {
1964 ($repo_id, $path) = find_ref($ref_id);
1965 if (!defined $repo_id) {
1966 die "Could not find a \"svn-remote.*.fetch\" key ",
1967 "in the repository configuration matching: ",
1968 "refs/remotes/$ref_id\n";
1969 }
1970 }
1971 my $self = _new($class, $repo_id, $ref_id, $path);
1972 if (!defined $self->{path} || !length $self->{path}) {
1973 my $fetch = command_oneline('config', '--get',
1974 "svn-remote.$repo_id.fetch",
1975 ":refs/remotes/$ref_id\$") or
1976 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1977 "\":refs/remotes/$ref_id\$\" in config\n";
1978 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1979 }
1980 $self->{url} = command_oneline('config', '--get',
1981 "svn-remote.$repo_id.url") or
1982 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1983 $self->rebuild;
1984 $self;
1985 }
1986
1987 sub refname {
1988 my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
1989
1990 # It cannot end with a slash /, we'll throw up on this because
1991 # SVN can't have directories with a slash in their name, either:
1992 if ($refname =~ m{/$}) {
1993 die "ref: '$refname' ends with a trailing slash, this is ",
1994 "not permitted by git nor Subversion\n";
1995 }
1996
1997 # It cannot have ASCII control character space, tilde ~, caret ^,
1998 # colon :, question-mark ?, asterisk *, space, or open bracket [
1999 # anywhere.
2000 #
2001 # Additionally, % must be escaped because it is used for escaping
2002 # and we want our escaped refname to be reversible
2003 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
2004
2005 # no slash-separated component can begin with a dot .
2006 # /.* becomes /%2E*
2007 $refname =~ s{/\.}{/%2E}g;
2008
2009 # It cannot have two consecutive dots .. anywhere
2010 # .. becomes %2E%2E
2011 $refname =~ s{\.\.}{%2E%2E}g;
2012
2013 return $refname;
2014 }
2015
2016 sub desanitize_refname {
2017 my ($refname) = @_;
2018 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
2019 return $refname;
2020 }
2021
2022 sub svm_uuid {
2023 my ($self) = @_;
2024 return $self->{svm}->{uuid} if $self->svm;
2025 $self->ra;
2026 unless ($self->{svm}) {
2027 die "SVM UUID not cached, and reading remotely failed\n";
2028 }
2029 $self->{svm}->{uuid};
2030 }
2031
2032 sub svm {
2033 my ($self) = @_;
2034 return $self->{svm} if $self->{svm};
2035 my $svm;
2036 # see if we have it in our config, first:
2037 eval {
2038 my $section = "svn-remote.$self->{repo_id}";
2039 $svm = {
2040 source => tmp_config('--get', "$section.svm-source"),
2041 uuid => tmp_config('--get', "$section.svm-uuid"),
2042 replace => tmp_config('--get', "$section.svm-replace"),
2043 }
2044 };
2045 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
2046 $self->{svm} = $svm;
2047 }
2048 $self->{svm};
2049 }
2050
2051 sub _set_svm_vars {
2052 my ($self, $ra) = @_;
2053 return $ra if $self->svm;
2054
2055 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
2056 "(svm:source, svm:uuid) ",
2057 "from the following URLs:\n" );
2058 sub read_svm_props {
2059 my ($self, $ra, $path, $r) = @_;
2060 my $props = ($ra->get_dir($path, $r))[2];
2061 my $src = $props->{'svm:source'};
2062 my $uuid = $props->{'svm:uuid'};
2063 return undef if (!$src || !$uuid);
2064
2065 chomp($src, $uuid);
2066
2067 $uuid =~ m{^[0-9a-f\-]{30,}$}i
2068 or die "doesn't look right - svm:uuid is '$uuid'\n";
2069
2070 # the '!' is used to mark the repos_root!/relative/path
2071 $src =~ s{/?!/?}{/};
2072 $src =~ s{/+$}{}; # no trailing slashes please
2073 # username is of no interest
2074 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
2075
2076 my $replace = $ra->{url};
2077 $replace .= "/$path" if length $path;
2078
2079 my $section = "svn-remote.$self->{repo_id}";
2080 tmp_config("$section.svm-source", $src);
2081 tmp_config("$section.svm-replace", $replace);
2082 tmp_config("$section.svm-uuid", $uuid);
2083 $self->{svm} = {
2084 source => $src,
2085 uuid => $uuid,
2086 replace => $replace
2087 };
2088 }
2089
2090 my $r = $ra->get_latest_revnum;
2091 my $path = $self->{path};
2092 my %tried;
2093 while (length $path) {
2094 unless ($tried{"$self->{url}/$path"}) {
2095 return $ra if $self->read_svm_props($ra, $path, $r);
2096 $tried{"$self->{url}/$path"} = 1;
2097 }
2098 $path =~ s#/?[^/]+$##;
2099 }
2100 die "Path: '$path' should be ''\n" if $path ne '';
2101 return $ra if $self->read_svm_props($ra, $path, $r);
2102 $tried{"$self->{url}/$path"} = 1;
2103
2104 if ($ra->{repos_root} eq $self->{url}) {
2105 die @err, (map { " $_\n" } keys %tried), "\n";
2106 }
2107
2108 # nope, make sure we're connected to the repository root:
2109 my $ok;
2110 my @tried_b;
2111 $path = $ra->{svn_path};
2112 $ra = Git::SVN::Ra->new($ra->{repos_root});
2113 while (length $path) {
2114 unless ($tried{"$ra->{url}/$path"}) {
2115 $ok = $self->read_svm_props($ra, $path, $r);
2116 last if $ok;
2117 $tried{"$ra->{url}/$path"} = 1;
2118 }
2119 $path =~ s#/?[^/]+$##;
2120 }
2121 die "Path: '$path' should be ''\n" if $path ne '';
2122 $ok ||= $self->read_svm_props($ra, $path, $r);
2123 $tried{"$ra->{url}/$path"} = 1;
2124 if (!$ok) {
2125 die @err, (map { " $_\n" } keys %tried), "\n";
2126 }
2127 Git::SVN::Ra->new($self->{url});
2128 }
2129
2130 sub svnsync {
2131 my ($self) = @_;
2132 return $self->{svnsync} if $self->{svnsync};
2133
2134 if ($self->no_metadata) {
2135 die "Can't have both 'noMetadata' and ",
2136 "'useSvnsyncProps' options set!\n";
2137 }
2138 if ($self->rewrite_root) {
2139 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
2140 "options set!\n";
2141 }
2142
2143 my $svnsync;
2144 # see if we have it in our config, first:
2145 eval {
2146 my $section = "svn-remote.$self->{repo_id}";
2147
2148 my $url = tmp_config('--get', "$section.svnsync-url");
2149 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
2150 die "doesn't look right - svn:sync-from-url is '$url'\n";
2151
2152 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
2153 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
2154 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
2155
2156 $svnsync = { url => $url, uuid => $uuid }
2157 };
2158 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
2159 return $self->{svnsync} = $svnsync;
2160 }
2161
2162 my $err = "useSvnsyncProps set, but failed to read " .
2163 "svnsync property: svn:sync-from-";
2164 my $rp = $self->ra->rev_proplist(0);
2165
2166 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
2167 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
2168 die "doesn't look right - svn:sync-from-url is '$url'\n";
2169
2170 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
2171 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
2172 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
2173
2174 my $section = "svn-remote.$self->{repo_id}";
2175 tmp_config('--add', "$section.svnsync-uuid", $uuid);
2176 tmp_config('--add', "$section.svnsync-url", $url);
2177 return $self->{svnsync} = { url => $url, uuid => $uuid };
2178 }
2179
2180 # this allows us to memoize our SVN::Ra UUID locally and avoid a
2181 # remote lookup (useful for 'git svn log').
2182 sub ra_uuid {
2183 my ($self) = @_;
2184 unless ($self->{ra_uuid}) {
2185 my $key = "svn-remote.$self->{repo_id}.uuid";
2186 my $uuid = eval { tmp_config('--get', $key) };
2187 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
2188 $self->{ra_uuid} = $uuid;
2189 } else {
2190 die "ra_uuid called without URL\n" unless $self->{url};
2191 $self->{ra_uuid} = $self->ra->get_uuid;
2192 tmp_config('--add', $key, $self->{ra_uuid});
2193 }
2194 }
2195 $self->{ra_uuid};
2196 }
2197
2198 sub _set_repos_root {
2199 my ($self, $repos_root) = @_;
2200 my $k = "svn-remote.$self->{repo_id}.reposRoot";
2201 $repos_root ||= $self->ra->{repos_root};
2202 tmp_config($k, $repos_root);
2203 $repos_root;
2204 }
2205
2206 sub repos_root {
2207 my ($self) = @_;
2208 my $k = "svn-remote.$self->{repo_id}.reposRoot";
2209 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
2210 }
2211
2212 sub ra {
2213 my ($self) = shift;
2214 my $ra = Git::SVN::Ra->new($self->{url});
2215 $self->_set_repos_root($ra->{repos_root});
2216 if ($self->use_svm_props && !$self->{svm}) {
2217 if ($self->no_metadata) {
2218 die "Can't have both 'noMetadata' and ",
2219 "'useSvmProps' options set!\n";
2220 } elsif ($self->use_svnsync_props) {
2221 die "Can't have both 'useSvnsyncProps' and ",
2222 "'useSvmProps' options set!\n";
2223 }
2224 $ra = $self->_set_svm_vars($ra);
2225 $self->{-want_revprops} = 1;
2226 }
2227 $ra;
2228 }
2229
2230 # prop_walk(PATH, REV, SUB)
2231 # -------------------------
2232 # Recursively traverse PATH at revision REV and invoke SUB for each
2233 # directory that contains a SVN property. SUB will be invoked as
2234 # follows: &SUB(gs, path, props); where `gs' is this instance of
2235 # Git::SVN, `path' the path to the directory where the properties
2236 # `props' were found. The `path' will be relative to point of checkout,
2237 # that is, if url://repo/trunk is the current Git branch, and that
2238 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
2239 # as `path' (note the trailing `/').
2240 sub prop_walk {
2241 my ($self, $path, $rev, $sub) = @_;
2242
2243 $path =~ s#^/##;
2244 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
2245 $path =~ s#^/*#/#g;
2246 my $p = $path;
2247 # Strip the irrelevant part of the path.
2248 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
2249 # Ensure the path is terminated by a `/'.
2250 $p =~ s#/*$#/#;
2251
2252 # The properties contain all the internal SVN stuff nobody
2253 # (usually) cares about.
2254 my $interesting_props = 0;
2255 foreach (keys %{$props}) {
2256 # If it doesn't start with `svn:', it must be a
2257 # user-defined property.
2258 ++$interesting_props and next if $_ !~ /^svn:/;
2259 # FIXME: Fragile, if SVN adds new public properties,
2260 # this needs to be updated.
2261 ++$interesting_props if /^svn:(?:ignore|keywords|executable
2262 |eol-style|mime-type
2263 |externals|needs-lock)$/x;
2264 }
2265 &$sub($self, $p, $props) if $interesting_props;
2266
2267 foreach (sort keys %$dirent) {
2268 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
2269 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
2270 }
2271 }
2272
2273 sub last_rev { ($_[0]->last_rev_commit)[0] }
2274 sub last_commit { ($_[0]->last_rev_commit)[1] }
2275
2276 # returns the newest SVN revision number and newest commit SHA1
2277 sub last_rev_commit {
2278 my ($self) = @_;
2279 if (defined $self->{last_rev} && defined $self->{last_commit}) {
2280 return ($self->{last_rev}, $self->{last_commit});
2281 }
2282 my $c = ::verify_ref($self->refname.'^0');
2283 if ($c && !$self->use_svm_props && !$self->no_metadata) {
2284 my $rev = (::cmt_metadata($c))[1];
2285 if (defined $rev) {
2286 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
2287 return ($rev, $c);
2288 }
2289 }
2290 my $map_path = $self->map_path;
2291 unless (-e $map_path) {
2292 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
2293 return (undef, undef);
2294 }
2295 my ($rev, $commit) = $self->rev_map_max(1);
2296 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
2297 return ($rev, $commit);
2298 }
2299
2300 sub get_fetch_range {
2301 my ($self, $min, $max) = @_;
2302 $max ||= $self->ra->get_latest_revnum;
2303 $min ||= $self->rev_map_max;
2304 (++$min, $max);
2305 }
2306
2307 sub tmp_config {
2308 my (@args) = @_;
2309 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
2310 my $config = "$ENV{GIT_DIR}/svn/.metadata";
2311 if (! -f $config && -f $old_def_config) {
2312 rename $old_def_config, $config or
2313 die "Failed rename $old_def_config => $config: $!\n";
2314 }
2315 my $old_config = $ENV{GIT_CONFIG};
2316 $ENV{GIT_CONFIG} = $config;
2317 $@ = undef;
2318 my @ret = eval {
2319 unless (-f $config) {
2320 mkfile($config);
2321 open my $fh, '>', $config or
2322 die "Can't open $config: $!\n";
2323 print $fh "; This file is used internally by ",
2324 "git-svn\n" or die
2325 "Couldn't write to $config: $!\n";
2326 print $fh "; You should not have to edit it\n" or
2327 die "Couldn't write to $config: $!\n";
2328 close $fh or die "Couldn't close $config: $!\n";
2329 }
2330 command('config', @args);
2331 };
2332 my $err = $@;
2333 if (defined $old_config) {
2334 $ENV{GIT_CONFIG} = $old_config;
2335 } else {
2336 delete $ENV{GIT_CONFIG};
2337 }
2338 die $err if $err;
2339 wantarray ? @ret : $ret[0];
2340 }
2341
2342 sub tmp_index_do {
2343 my ($self, $sub) = @_;
2344 my $old_index = $ENV{GIT_INDEX_FILE};
2345 $ENV{GIT_INDEX_FILE} = $self->{index};
2346 $@ = undef;
2347 my @ret = eval {
2348 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2349 mkpath([$dir]) unless -d $dir;
2350 &$sub;
2351 };
2352 my $err = $@;
2353 if (defined $old_index) {
2354 $ENV{GIT_INDEX_FILE} = $old_index;
2355 } else {
2356 delete $ENV{GIT_INDEX_FILE};
2357 }
2358 die $err if $err;
2359 wantarray ? @ret : $ret[0];
2360 }
2361
2362 sub assert_index_clean {
2363 my ($self, $treeish) = @_;
2364
2365 $self->tmp_index_do(sub {
2366 command_noisy('read-tree', $treeish) unless -e $self->{index};
2367 my $x = command_oneline('write-tree');
2368 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2369 /^tree ($::sha1)/mo);
2370 return if $y eq $x;
2371
2372 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2373 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2374 command_noisy('read-tree', $treeish);
2375 $x = command_oneline('write-tree');
2376 if ($y ne $x) {
2377 ::fatal "trees ($treeish) $y != $x\n",
2378 "Something is seriously wrong...";
2379 }
2380 });
2381 }
2382
2383 sub get_commit_parents {
2384 my ($self, $log_entry) = @_;
2385 my (%seen, @ret, @tmp);
2386 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2387 if (my $ip = $self->{inject_parents}) {
2388 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2389 push @tmp, $commit;
2390 }
2391 }
2392 if (my $cur = ::verify_ref($self->refname.'^0')) {
2393 push @tmp, $cur;
2394 }
2395 if (my $ipd = $self->{inject_parents_dcommit}) {
2396 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2397 push @tmp, @$commit;
2398 }
2399 }
2400 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2401 while (my $p = shift @tmp) {
2402 next if $seen{$p};
2403 $seen{$p} = 1;
2404 push @ret, $p;
2405 # MAXPARENT is defined to 16 in commit-tree.c:
2406 last if @ret >= 16;
2407 }
2408 if (@tmp) {
2409 die "r$log_entry->{revision}: No room for parents:\n\t",
2410 join("\n\t", @tmp), "\n";
2411 }
2412 @ret;
2413 }
2414
2415 sub rewrite_root {
2416 my ($self) = @_;
2417 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2418 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2419 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2420 if ($rwr) {
2421 $rwr =~ s#/+$##;
2422 if ($rwr !~ m#^[a-z\+]+://#) {
2423 die "$rwr is not a valid URL (key: $k)\n";
2424 }
2425 }
2426 $self->{-rewrite_root} = $rwr;
2427 }
2428
2429 sub metadata_url {
2430 my ($self) = @_;
2431 ($self->rewrite_root || $self->{url}) .
2432 (length $self->{path} ? '/' . $self->{path} : '');
2433 }
2434
2435 sub full_url {
2436 my ($self) = @_;
2437 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2438 }
2439
2440
2441 sub set_commit_header_env {
2442 my ($log_entry) = @_;
2443 my %env;
2444 foreach my $ned (qw/NAME EMAIL DATE/) {
2445 foreach my $ac (qw/AUTHOR COMMITTER/) {
2446 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2447 }
2448 }
2449
2450 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2451 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2452 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2453
2454 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2455 ? $log_entry->{commit_name}
2456 : $log_entry->{name};
2457 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2458 ? $log_entry->{commit_email}
2459 : $log_entry->{email};
2460 \%env;
2461 }
2462
2463 sub restore_commit_header_env {
2464 my ($env) = @_;
2465 foreach my $ned (qw/NAME EMAIL DATE/) {
2466 foreach my $ac (qw/AUTHOR COMMITTER/) {
2467 my $k = "GIT_${ac}_${ned}";
2468 if (defined $env->{$k}) {
2469 $ENV{$k} = $env->{$k};
2470 } else {
2471 delete $ENV{$k};
2472 }
2473 }
2474 }
2475 }
2476
2477 sub gc {
2478 command_noisy('gc', '--auto');
2479 };
2480
2481 sub do_git_commit {
2482 my ($self, $log_entry) = @_;
2483 my $lr = $self->last_rev;
2484 if (defined $lr && $lr >= $log_entry->{revision}) {
2485 die "Last fetched revision of ", $self->refname,
2486 " was r$lr, but we are about to fetch: ",
2487 "r$log_entry->{revision}!\n";
2488 }
2489 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2490 croak "$log_entry->{revision} = $c already exists! ",
2491 "Why are we refetching it?\n";
2492 }
2493 my $old_env = set_commit_header_env($log_entry);
2494 my $tree = $log_entry->{tree};
2495 if (!defined $tree) {
2496 $tree = $self->tmp_index_do(sub {
2497 command_oneline('write-tree') });
2498 }
2499 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2500
2501 my @exec = ('git', 'commit-tree', $tree);
2502 foreach ($self->get_commit_parents($log_entry)) {
2503 push @exec, '-p', $_;
2504 }
2505 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2506 or croak $!;
2507 binmode $msg_fh;
2508
2509 # we always get UTF-8 from SVN, but we may want our commits in
2510 # a different encoding.
2511 if (my $enc = Git::config('i18n.commitencoding')) {
2512 require Encode;
2513 Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
2514 }
2515 print $msg_fh $log_entry->{log} or croak $!;
2516 restore_commit_header_env($old_env);
2517 unless ($self->no_metadata) {
2518 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2519 or croak $!;
2520 }
2521 $msg_fh->flush == 0 or croak $!;
2522 close $msg_fh or croak $!;
2523 chomp(my $commit = do { local $/; <$out_fh> });
2524 close $out_fh or croak $!;
2525 waitpid $pid, 0;
2526 croak $? if $?;
2527 if ($commit !~ /^$::sha1$/o) {
2528 die "Failed to commit, invalid sha1: $commit\n";
2529 }
2530
2531 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2532
2533 $self->{last_rev} = $log_entry->{revision};
2534 $self->{last_commit} = $commit;
2535 print "r$log_entry->{revision}" unless $::_q > 1;
2536 if (defined $log_entry->{svm_revision}) {
2537 print " (\@$log_entry->{svm_revision})" unless $::_q > 1;
2538 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2539 0, $self->svm_uuid);
2540 }
2541 print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
2542 if (--$_gc_nr == 0) {
2543 $_gc_nr = $_gc_period;
2544 gc();
2545 }
2546 return $commit;
2547 }
2548
2549 sub match_paths {
2550 my ($self, $paths, $r) = @_;
2551 return 1 if $self->{path} eq '';
2552 if (my $path = $paths->{"/$self->{path}"}) {
2553 return ($path->{action} eq 'D') ? 0 : 1;
2554 }
2555 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2556 if (grep /$self->{path_regex}/, keys %$paths) {
2557 return 1;
2558 }
2559 my $c = '';
2560 foreach (split m#/#, $self->{path}) {
2561 $c .= "/$_";
2562 next unless ($paths->{$c} &&
2563 ($paths->{$c}->{action} =~ /^[AR]$/));
2564 if ($self->ra->check_path($self->{path}, $r) ==
2565 $SVN::Node::dir) {
2566 return 1;
2567 }
2568 }
2569 return 0;
2570 }
2571
2572 sub find_parent_branch {
2573 my ($self, $paths, $rev) = @_;
2574 return undef unless $self->follow_parent;
2575 unless (defined $paths) {
2576 my $err_handler = $SVN::Error::handler;
2577 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2578 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1,
2579 sub { $paths = $_[0] });
2580 $SVN::Error::handler = $err_handler;
2581 }
2582 return undef unless defined $paths;
2583
2584 # look for a parent from another branch:
2585 my @b_path_components = split m#/#, $self->{path};
2586 my @a_path_components;
2587 my $i;
2588 while (@b_path_components) {
2589 $i = $paths->{'/'.join('/', @b_path_components)};
2590 last if $i && defined $i->{copyfrom_path};
2591 unshift(@a_path_components, pop(@b_path_components));
2592 }
2593 return undef unless defined $i && defined $i->{copyfrom_path};
2594 my $branch_from = $i->{copyfrom_path};
2595 if (@a_path_components) {
2596 print STDERR "branch_from: $branch_from => ";
2597 $branch_from .= '/'.join('/', @a_path_components);
2598 print STDERR $branch_from, "\n";
2599 }
2600 my $r = $i->{copyfrom_rev};
2601 my $repos_root = $self->ra->{repos_root};
2602 my $url = $self->ra->{url};
2603 my $new_url = $url . $branch_from;
2604 print STDERR "Found possible branch point: ",
2605 "$new_url => ", $self->full_url, ", $r\n";
2606 $branch_from =~ s#^/##;
2607 my $gs = $self->other_gs($new_url, $url,
2608 $branch_from, $r, $self->{ref_id});
2609 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2610 {
2611 my ($base, $head);
2612 if (!defined $r0 || !defined $parent) {
2613 ($base, $head) = parse_revision_argument(0, $r);
2614 } else {
2615 if ($r0 < $r) {
2616 $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
2617 0, 1, sub { $base = $_[1] - 1 });
2618 }
2619 }
2620 if (defined $base && $base <= $r) {
2621 $gs->fetch($base, $r);
2622 }
2623 ($r0, $parent) = $gs->find_rev_before($r, 1);
2624 }
2625 if (defined $r0 && defined $parent) {
2626 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
2627 my $ed;
2628 if ($self->ra->can_do_switch) {
2629 $self->assert_index_clean($parent);
2630 print STDERR "Following parent with do_switch\n";
2631 # do_switch works with svn/trunk >= r22312, but that
2632 # is not included with SVN 1.4.3 (the latest version
2633 # at the moment), so we can't rely on it
2634 $self->{last_rev} = $r0;
2635 $self->{last_commit} = $parent;
2636 $ed = SVN::Git::Fetcher->new($self, $gs->{path});
2637 $gs->ra->gs_do_switch($r0, $rev, $gs,
2638 $self->full_url, $ed)
2639 or die "SVN connection failed somewhere...\n";
2640 } elsif ($self->ra->trees_match($new_url, $r0,
2641 $self->full_url, $rev)) {
2642 print STDERR "Trees match:\n",
2643 " $new_url\@$r0\n",
2644 " ${\$self->full_url}\@$rev\n",
2645 "Following parent with no changes\n";
2646 $self->tmp_index_do(sub {
2647 command_noisy('read-tree', $parent);
2648 });
2649 $self->{last_commit} = $parent;
2650 } else {
2651 print STDERR "Following parent with do_update\n";
2652 $ed = SVN::Git::Fetcher->new($self);
2653 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2654 or die "SVN connection failed somewhere...\n";
2655 }
2656 print STDERR "Successfully followed parent\n";
2657 return $self->make_log_entry($rev, [$parent], $ed);
2658 }
2659 return undef;
2660 }
2661
2662 sub do_fetch {
2663 my ($self, $paths, $rev) = @_;
2664 my $ed;
2665 my ($last_rev, @parents);
2666 if (my $lc = $self->last_commit) {
2667 # we can have a branch that was deleted, then re-added
2668 # under the same name but copied from another path, in
2669 # which case we'll have multiple parents (we don't
2670 # want to break the original ref, nor lose copypath info):
2671 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2672 push @{$log_entry->{parents}}, $lc;
2673 return $log_entry;
2674 }
2675 $ed = SVN::Git::Fetcher->new($self);
2676 $last_rev = $self->{last_rev};
2677 $ed->{c} = $lc;
2678 @parents = ($lc);
2679 } else {
2680 $last_rev = $rev;
2681 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2682 return $log_entry;
2683 }
2684 $ed = SVN::Git::Fetcher->new($self);
2685 }
2686 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2687 die "SVN connection failed somewhere...\n";
2688 }
2689 $self->make_log_entry($rev, \@parents, $ed);
2690 }
2691
2692 sub get_untracked {
2693 my ($self, $ed) = @_;
2694 my @out;
2695 my $h = $ed->{empty};
2696 foreach (sort keys %$h) {
2697 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2698 push @out, " $act: " . uri_encode($_);
2699 warn "W: $act: $_\n";
2700 }
2701 foreach my $t (qw/dir_prop file_prop/) {
2702 $h = $ed->{$t} or next;
2703 foreach my $path (sort keys %$h) {
2704 my $ppath = $path eq '' ? '.' : $path;
2705 foreach my $prop (sort keys %{$h->{$path}}) {
2706 next if $SKIP_PROP{$prop};
2707 my $v = $h->{$path}->{$prop};
2708 my $t_ppath_prop = "$t: " .
2709 uri_encode($ppath) . ' ' .
2710 uri_encode($prop);
2711 if (defined $v) {
2712 push @out, " +$t_ppath_prop " .
2713 uri_encode($v);
2714 } else {
2715 push @out, " -$t_ppath_prop";
2716 }
2717 }
2718 }
2719 }
2720 foreach my $t (qw/absent_file absent_directory/) {
2721 $h = $ed->{$t} or next;
2722 foreach my $parent (sort keys %$h) {
2723 foreach my $path (sort @{$h->{$parent}}) {
2724 push @out, " $t: " .
2725 uri_encode("$parent/$path");
2726 warn "W: $t: $parent/$path ",
2727 "Insufficient permissions?\n";
2728 }
2729 }
2730 }
2731 \@out;
2732 }
2733
2734 # parse_svn_date(DATE)
2735 # --------------------
2736 # Given a date (in UTC) from Subversion, return a string in the format
2737 # "<TZ Offset> <local date/time>" that Git will use.
2738 #
2739 # By default the parsed date will be in UTC; if $Git::SVN::_localtime
2740 # is true we'll convert it to the local timezone instead.
2741 sub parse_svn_date {
2742 my $date = shift || return '+0000 1970-01-01 00:00:00';
2743 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2744 (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
2745 croak "Unable to parse date: $date\n";
2746 my $parsed_date; # Set next.
2747
2748 if ($Git::SVN::_localtime) {
2749 # Translate the Subversion datetime to an epoch time.
2750 # Begin by switching ourselves to $date's timezone, UTC.
2751 my $old_env_TZ = $ENV{TZ};
2752 $ENV{TZ} = 'UTC';
2753
2754 my $epoch_in_UTC =
2755 POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
2756
2757 # Determine our local timezone (including DST) at the
2758 # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
2759 # value of TZ, if any, at the time we were run.
2760 if (defined $Git::SVN::Log::TZ) {
2761 $ENV{TZ} = $Git::SVN::Log::TZ;
2762 } else {
2763 delete $ENV{TZ};
2764 }
2765
2766 my $our_TZ =
2767 POSIX::strftime('%Z', $S, $M, $H, $d, $m - 1, $Y - 1900);
2768
2769 # This converts $epoch_in_UTC into our local timezone.
2770 my ($sec, $min, $hour, $mday, $mon, $year,
2771 $wday, $yday, $isdst) = localtime($epoch_in_UTC);
2772
2773 $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
2774 $our_TZ, $year + 1900, $mon + 1,
2775 $mday, $hour, $min, $sec);
2776
2777 # Reset us to the timezone in effect when we entered
2778 # this routine.
2779 if (defined $old_env_TZ) {
2780 $ENV{TZ} = $old_env_TZ;
2781 } else {
2782 delete $ENV{TZ};
2783 }
2784 } else {
2785 $parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
2786 }
2787
2788 return $parsed_date;
2789 }
2790
2791 sub other_gs {
2792 my ($self, $new_url, $url,
2793 $branch_from, $r, $old_ref_id) = @_;
2794 my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
2795 unless ($gs) {
2796 my $ref_id = $old_ref_id;
2797 $ref_id =~ s/\@\d+$//;
2798 $ref_id .= "\@$r";
2799 # just grow a tail if we're not unique enough :x
2800 $ref_id .= '-' while find_ref($ref_id);
2801 print STDERR "Initializing parent: $ref_id\n";
2802 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2803 if ($u =~ s#^\Q$url\E(/|$)##) {
2804 $p = $u;
2805 $u = $url;
2806 $repo_id = $self->{repo_id};
2807 }
2808 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2809 }
2810 $gs
2811 }
2812
2813 sub call_authors_prog {
2814 my ($orig_author) = @_;
2815 my $author = `$::_authors_prog $orig_author`;
2816 if ($? != 0) {
2817 die "$::_authors_prog failed with exit code $?\n"
2818 }
2819 if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) {
2820 my ($name, $email) = ($1, $2);
2821 $email = undef if length $2 == 0;
2822 return [$name, $email];
2823 } else {
2824 die "Author: $orig_author: $::_authors_prog returned "
2825 . "invalid author format: $author\n";
2826 }
2827 }
2828
2829 sub check_author {
2830 my ($author) = @_;
2831 if (!defined $author || length $author == 0) {
2832 $author = '(no author)';
2833 }
2834 if (!defined $::users{$author}) {
2835 if (defined $::_authors_prog) {
2836 $::users{$author} = call_authors_prog($author);
2837 } elsif (defined $::_authors) {
2838 die "Author: $author not defined in $::_authors file\n";
2839 }
2840 }
2841 $author;
2842 }
2843
2844 sub make_log_entry {
2845 my ($self, $rev, $parents, $ed) = @_;
2846 my $untracked = $self->get_untracked($ed);
2847
2848 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
2849 print $un "r$rev\n" or croak $!;
2850 print $un $_, "\n" foreach @$untracked;
2851 my %log_entry = ( parents => $parents || [], revision => $rev,
2852 log => '');
2853
2854 my $headrev;
2855 my $logged = delete $self->{logged_rev_props};
2856 if (!$logged || $self->{-want_revprops}) {
2857 my $rp = $self->ra->rev_proplist($rev);
2858 foreach (sort keys %$rp) {
2859 my $v = $rp->{$_};
2860 if (/^svn:(author|date|log)$/) {
2861 $log_entry{$1} = $v;
2862 } elsif ($_ eq 'svm:headrev') {
2863 $headrev = $v;
2864 } else {
2865 print $un " rev_prop: ", uri_encode($_), ' ',
2866 uri_encode($v), "\n";
2867 }
2868 }
2869 } else {
2870 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
2871 }
2872 close $un or croak $!;
2873
2874 $log_entry{date} = parse_svn_date($log_entry{date});
2875 $log_entry{log} .= "\n";
2876 my $author = $log_entry{author} = check_author($log_entry{author});
2877 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
2878 : ($author, undef);
2879
2880 my ($commit_name, $commit_email) = ($name, $email);
2881 if ($_use_log_author) {
2882 my $name_field;
2883 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
2884 $name_field = $1;
2885 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
2886 $name_field = $1;
2887 }
2888 if (!defined $name_field) {
2889 if (!defined $email) {
2890 $email = $name;
2891 }
2892 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
2893 ($name, $email) = ($1, $2);
2894 } elsif ($name_field =~ /(.*)@/) {
2895 ($name, $email) = ($1, $name_field);
2896 } else {
2897 ($name, $email) = ($name_field, $name_field);
2898 }
2899 }
2900 if (defined $headrev && $self->use_svm_props) {
2901 if ($self->rewrite_root) {
2902 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
2903 "options set!\n";
2904 }
2905 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i;
2906 # we don't want "SVM: initializing mirror for junk" ...
2907 return undef if $r == 0;
2908 my $svm = $self->svm;
2909 if ($uuid ne $svm->{uuid}) {
2910 die "UUID mismatch on SVM path:\n",
2911 "expected: $svm->{uuid}\n",
2912 " got: $uuid\n";
2913 }
2914 my $full_url = $self->full_url;
2915 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
2916 die "Failed to replace '$svm->{replace}' with ",
2917 "'$svm->{source}' in $full_url\n";
2918 # throw away username for storing in records
2919 remove_username($full_url);
2920 $log_entry{metadata} = "$full_url\@$r $uuid";
2921 $log_entry{svm_revision} = $r;
2922 $email ||= "$author\@$uuid";
2923 $commit_email ||= "$author\@$uuid";
2924 } elsif ($self->use_svnsync_props) {
2925 my $full_url = $self->svnsync->{url};
2926 $full_url .= "/$self->{path}" if length $self->{path};
2927 remove_username($full_url);
2928 my $uuid = $self->svnsync->{uuid};
2929 $log_entry{metadata} = "$full_url\@$rev $uuid";
2930 $email ||= "$author\@$uuid";
2931 $commit_email ||= "$author\@$uuid";
2932 } else {
2933 my $url = $self->metadata_url;
2934 remove_username($url);
2935 $log_entry{metadata} = "$url\@$rev " .
2936 $self->ra->get_uuid;
2937 $email ||= "$author\@" . $self->ra->get_uuid;
2938 $commit_email ||= "$author\@" . $self->ra->get_uuid;
2939 }
2940 $log_entry{name} = $name;
2941 $log_entry{email} = $email;
2942 $log_entry{commit_name} = $commit_name;
2943 $log_entry{commit_email} = $commit_email;
2944 \%log_entry;
2945 }
2946
2947 sub fetch {
2948 my ($self, $min_rev, $max_rev, @parents) = @_;
2949 my ($last_rev, $last_commit) = $self->last_rev_commit;
2950 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
2951 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
2952 }
2953
2954 sub set_tree_cb {
2955 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2956 $self->{inject_parents} = { $rev => $tree };
2957 $self->fetch(undef, undef);
2958 }
2959
2960 sub set_tree {
2961 my ($self, $tree) = (shift, shift);
2962 my $log_entry = ::get_commit_entry($tree);
2963 unless ($self->{last_rev}) {
2964 ::fatal("Must have an existing revision to commit");
2965 }
2966 my %ed_opts = ( r => $self->{last_rev},
2967 log => $log_entry->{log},
2968 ra => $self->ra,
2969 tree_a => $self->{last_commit},
2970 tree_b => $tree,
2971 editor_cb => sub {
2972 $self->set_tree_cb($log_entry, $tree, @_) },
2973 svn_path => $self->{path} );
2974 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
2975 print "No changes\nr$self->{last_rev} = $tree\n";
2976 }
2977 }
2978
2979 sub rebuild_from_rev_db {
2980 my ($self, $path) = @_;
2981 my $r = -1;
2982 open my $fh, '<', $path or croak "open: $!";
2983 binmode $fh or croak "binmode: $!";
2984 while (<$fh>) {
2985 length($_) == 41 or croak "inconsistent size in ($_) != 41";
2986 chomp($_);
2987 ++$r;
2988 next if $_ eq ('0' x 40);
2989 $self->rev_map_set($r, $_);
2990 print "r$r = $_\n";
2991 }
2992 close $fh or croak "close: $!";
2993 unlink $path or croak "unlink: $!";
2994 }
2995
2996 sub rebuild {
2997 my ($self) = @_;
2998 my $map_path = $self->map_path;
2999 my $partial = (-e $map_path && ! -z $map_path);
3000 return unless ::verify_ref($self->refname.'^0');
3001 if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
3002 my $rev_db = $self->rev_db_path;
3003 $self->rebuild_from_rev_db($rev_db);
3004 if ($self->use_svm_props) {
3005 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
3006 $self->rebuild_from_rev_db($svm_rev_db);
3007 }
3008 $self->unlink_rev_db_symlink;
3009 return;
3010 }
3011 print "Rebuilding $map_path ...\n" if (!$partial);
3012 my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
3013 (undef, undef));
3014 my ($log, $ctx) =
3015 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
3016 ($head ? "$head.." : "") . $self->refname,
3017 '--');
3018 my $metadata_url = $self->metadata_url;
3019 remove_username($metadata_url);
3020 my $svn_uuid = $self->ra_uuid;
3021 my $c;
3022 while (<$log>) {
3023 if ( m{^commit ($::sha1)$} ) {
3024 $c = $1;
3025 next;
3026 }
3027 next unless s{^\s*(git-svn-id:)}{$1};
3028 my ($url, $rev, $uuid) = ::extract_metadata($_);
3029 remove_username($url);
3030
3031 # ignore merges (from set-tree)
3032 next if (!defined $rev || !$uuid);
3033
3034 # if we merged or otherwise started elsewhere, this is
3035 # how we break out of it
3036 if (($uuid ne $svn_uuid) ||
3037 ($metadata_url && $url && ($url ne $metadata_url))) {
3038 next;
3039 }
3040 if ($partial && $head) {
3041 print "Partial-rebuilding $map_path ...\n";
3042 print "Currently at $base_rev = $head\n";
3043 $head = undef;
3044 }
3045
3046 $self->rev_map_set($rev, $c);
3047 print "r$rev = $c\n";
3048 }
3049 command_close_pipe($log, $ctx);
3050 print "Done rebuilding $map_path\n" if (!$partial || !$head);
3051 my $rev_db_path = $self->rev_db_path;
3052 if (-f $self->rev_db_path) {
3053 unlink $self->rev_db_path or croak "unlink: $!";
3054 }
3055 $self->unlink_rev_db_symlink;
3056 }
3057
3058 # rev_map:
3059 # Tie::File seems to be prone to offset errors if revisions get sparse,
3060 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
3061 # one of my favorite modules is out :< Next up would be one of the DBM
3062 # modules, but I'm not sure which is most portable...
3063 #
3064 # This is the replacement for the rev_db format, which was too big
3065 # and inefficient for large repositories with a lot of sparse history
3066 # (mainly tags)
3067 #
3068 # The format is this:
3069 # - 24 bytes for every record,
3070 # * 4 bytes for the integer representing an SVN revision number
3071 # * 20 bytes representing the sha1 of a git commit
3072 # - No empty padding records like the old format
3073 # (except the last record, which can be overwritten)
3074 # - new records are written append-only since SVN revision numbers
3075 # increase monotonically
3076 # - lookups on SVN revision number are done via a binary search
3077 # - Piping the file to xxd -c24 is a good way of dumping it for
3078 # viewing or editing (piped back through xxd -r), should the need
3079 # ever arise.
3080 # - The last record can be padding revision with an all-zero sha1
3081 # This is used to optimize fetch performance when using multiple
3082 # "fetch" directives in .git/config
3083 #
3084 # These files are disposable unless noMetadata or useSvmProps is set
3085
3086 sub _rev_map_set {
3087 my ($fh, $rev, $commit) = @_;
3088
3089 binmode $fh or croak "binmode: $!";
3090 my $size = (stat($fh))[7];
3091 ($size % 24) == 0 or croak "inconsistent size: $size";
3092
3093 my $wr_offset = 0;
3094 if ($size > 0) {
3095 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
3096 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
3097 $read == 24 or croak "read only $read bytes (!= 24)";
3098 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
3099 if ($last_commit eq ('0' x40)) {
3100 if ($size >= 48) {
3101 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
3102 $read = sysread($fh, $buf, 24) or
3103 croak "read: $!";
3104 $read == 24 or
3105 croak "read only $read bytes (!= 24)";
3106 ($last_rev, $last_commit) =
3107 unpack(rev_map_fmt, $buf);
3108 if ($last_commit eq ('0' x40)) {
3109 croak "inconsistent .rev_map\n";
3110 }
3111 }
3112 if ($last_rev >= $rev) {
3113 croak "last_rev is higher!: $last_rev >= $rev";
3114 }
3115 $wr_offset = -24;
3116 }
3117 }
3118 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
3119 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
3120 croak "write: $!";
3121 }
3122
3123 sub _rev_map_reset {
3124 my ($fh, $rev, $commit) = @_;
3125 my $c = _rev_map_get($fh, $rev);
3126 $c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n";
3127 my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!";
3128 truncate $fh, $offset or croak "truncate: $!";
3129 }
3130
3131 sub mkfile {
3132 my ($path) = @_;
3133 unless (-e $path) {
3134 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
3135 mkpath([$dir]) unless -d $dir;
3136 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
3137 close $fh or die "Couldn't close (create) $path: $!\n";
3138 }
3139 }
3140
3141 sub rev_map_set {
3142 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
3143 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
3144 my $db = $self->map_path($uuid);
3145 my $db_lock = "$db.lock";
3146 my $sig;
3147 $update_ref ||= 0;
3148 if ($update_ref) {
3149 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
3150 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
3151 }
3152 mkfile($db);
3153
3154 $LOCKFILES{$db_lock} = 1;
3155 my $sync;
3156 # both of these options make our .rev_db file very, very important
3157 # and we can't afford to lose it because rebuild() won't work
3158 if ($self->use_svm_props || $self->no_metadata) {
3159 $sync = 1;
3160 copy($db, $db_lock) or die "rev_map_set(@_): ",
3161 "Failed to copy: ",
3162 "$db => $db_lock ($!)\n";
3163 } else {
3164 rename $db, $db_lock or die "rev_map_set(@_): ",
3165 "Failed to rename: ",
3166 "$db => $db_lock ($!)\n";
3167 }
3168
3169 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
3170 or croak "Couldn't open $db_lock: $!\n";
3171 $update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) :
3172 _rev_map_set($fh, $rev, $commit);
3173 if ($sync) {
3174 $fh->flush or die "Couldn't flush $db_lock: $!\n";
3175 $fh->sync or die "Couldn't sync $db_lock: $!\n";
3176 }
3177 close $fh or croak $!;
3178 if ($update_ref) {
3179 $_head = $self;
3180 my $note = "";
3181 $note = " ($update_ref)" if ($update_ref !~ /^\d*$/);
3182 command_noisy('update-ref', '-m', "r$rev$note",
3183 $self->refname, $commit);
3184 }
3185 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
3186 "$db_lock => $db ($!)\n";
3187 delete $LOCKFILES{$db_lock};
3188 if ($update_ref) {
3189 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
3190 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
3191 kill $sig, $$ if defined $sig;
3192 }
3193 }
3194
3195 # If want_commit, this will return an array of (rev, commit) where
3196 # commit _must_ be a valid commit in the archive.
3197 # Otherwise, it'll return the max revision (whether or not the
3198 # commit is valid or just a 0x40 placeholder).
3199 sub rev_map_max {
3200 my ($self, $want_commit) = @_;
3201 $self->rebuild;
3202 my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
3203 $want_commit ? ($r, $c) : $r;
3204 }
3205
3206 sub rev_map_max_norebuild {
3207 my ($self, $want_commit) = @_;
3208 my $map_path = $self->map_path;
3209 stat $map_path or return $want_commit ? (0, undef) : 0;
3210 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
3211 binmode $fh or croak "binmode: $!";
3212 my $size = (stat($fh))[7];
3213 ($size % 24) == 0 or croak "inconsistent size: $size";
3214
3215 if ($size == 0) {
3216 close $fh or croak "close: $!";
3217 return $want_commit ? (0, undef) : 0;
3218 }
3219
3220 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
3221 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3222 my ($r, $c) = unpack(rev_map_fmt, $buf);
3223 if ($want_commit && $c eq ('0' x40)) {
3224 if ($size < 48) {
3225 return $want_commit ? (0, undef) : 0;
3226 }
3227 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
3228 sysread($fh, $buf, 24) == 24 or croak "read: $!";
3229 ($r, $c) = unpack(rev_map_fmt, $buf);
3230 if ($c eq ('0'x40)) {
3231 croak "Penultimate record is all-zeroes in $map_path";
3232 }
3233 }
3234 close $fh or croak "close: $!";
3235 $want_commit ? ($r, $c) : $r;
3236 }
3237
3238 sub rev_map_get {
3239 my ($self, $rev, $uuid) = @_;
3240 my $map_path = $self->map_path($uuid);
3241 return undef unless -e $map_path;
3242
3243 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
3244 my $c = _rev_map_get($fh, $rev);
3245 close($fh) or croak "close: $!";
3246 $c
3247 }
3248
3249 sub _rev_map_get {
3250 my ($fh, $rev) = @_;
3251
3252 binmode $fh or croak "binmode: $!";
3253 my $size = (stat($fh))[7];
3254 ($size % 24) == 0 or croak "inconsistent size: $size";
3255
3256 if ($size == 0) {
3257 return undef;
3258 }
3259
3260 my ($l, $u) = (0, $size - 24);
3261 my ($r, $c, $buf);
3262
3263 while ($l <= $u) {
3264 my $i = int(($l/24 + $u/24) / 2) * 24;
3265 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
3266 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3267 my ($r, $c) = unpack('NH40', $buf);
3268
3269 if ($r < $rev) {
3270 $l = $i + 24;
3271 } elsif ($r > $rev) {
3272 $u = $i - 24;
3273 } else { # $r == $rev
3274 return $c eq ('0' x 40) ? undef : $c;
3275 }
3276 }
3277 undef;
3278 }
3279
3280 # Finds the first svn revision that exists on (if $eq_ok is true) or
3281 # before $rev for the current branch. It will not search any lower
3282 # than $min_rev. Returns the git commit hash and svn revision number
3283 # if found, else (undef, undef).
3284 sub find_rev_before {
3285 my ($self, $rev, $eq_ok, $min_rev) = @_;
3286 --$rev unless $eq_ok;
3287 $min_rev ||= 1;
3288 my $max_rev = $self->rev_map_max;
3289 $rev = $max_rev if ($rev > $max_rev);
3290 while ($rev >= $min_rev) {
3291 if (my $c = $self->rev_map_get($rev)) {
3292 return ($rev, $c);
3293 }
3294 --$rev;
3295 }
3296 return (undef, undef);
3297 }
3298
3299 # Finds the first svn revision that exists on (if $eq_ok is true) or
3300 # after $rev for the current branch. It will not search any higher
3301 # than $max_rev. Returns the git commit hash and svn revision number
3302 # if found, else (undef, undef).
3303 sub find_rev_after {
3304 my ($self, $rev, $eq_ok, $max_rev) = @_;
3305 ++$rev unless $eq_ok;
3306 $max_rev ||= $self->rev_map_max;
3307 while ($rev <= $max_rev) {
3308 if (my $c = $self->rev_map_get($rev)) {
3309 return ($rev, $c);
3310 }
3311 ++$rev;
3312 }
3313 return (undef, undef);
3314 }
3315
3316 sub _new {
3317 my ($class, $repo_id, $ref_id, $path) = @_;
3318 unless (defined $repo_id && length $repo_id) {
3319 $repo_id = $Git::SVN::default_repo_id;
3320 }
3321 unless (defined $ref_id && length $ref_id) {
3322 $_prefix = '' unless defined($_prefix);
3323 $_[2] = $ref_id = $_prefix . $Git::SVN::default_ref_id;
3324 }
3325 $_[1] = $repo_id;
3326 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
3327 $_[3] = $path = '' unless (defined $path);
3328 mkpath(["$ENV{GIT_DIR}/svn"]);
3329 bless {
3330 ref_id => $ref_id, dir => $dir, index => "$dir/index",
3331 path => $path, config => "$ENV{GIT_DIR}/svn/config",
3332 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
3333 }
3334
3335 # for read-only access of old .rev_db formats
3336 sub unlink_rev_db_symlink {
3337 my ($self) = @_;
3338 my $link = $self->rev_db_path;
3339 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
3340 if (-l $link) {
3341 unlink $link or croak "unlink: $link failed!";
3342 }
3343 }
3344
3345 sub rev_db_path {
3346 my ($self, $uuid) = @_;
3347 my $db_path = $self->map_path($uuid);
3348 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
3349 or croak "map_path: $db_path does not contain '/.rev_map.' !";
3350 $db_path;
3351 }
3352
3353 # the new replacement for .rev_db
3354 sub map_path {
3355 my ($self, $uuid) = @_;
3356 $uuid ||= $self->ra_uuid;
3357 "$self->{map_root}.$uuid";
3358 }
3359
3360 sub uri_encode {
3361 my ($f) = @_;
3362 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
3363 $f
3364 }
3365
3366 sub remove_username {
3367 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
3368 }
3369
3370 package Git::SVN::Prompt;
3371 use strict;
3372 use warnings;
3373 require SVN::Core;
3374 use vars qw/$_no_auth_cache $_username/;
3375
3376 sub simple {
3377 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
3378 $may_save = undef if $_no_auth_cache;
3379 $default_username = $_username if defined $_username;
3380 if (defined $default_username && length $default_username) {
3381 if (defined $realm && length $realm) {
3382 print STDERR "Authentication realm: $realm\n";
3383 STDERR->flush;
3384 }
3385 $cred->username($default_username);
3386 } else {
3387 username($cred, $realm, $may_save, $pool);
3388 }
3389 $cred->password(_read_password("Password for '" .
3390 $cred->username . "': ", $realm));
3391 $cred->may_save($may_save);
3392 $SVN::_Core::SVN_NO_ERROR;
3393 }
3394
3395 sub ssl_server_trust {
3396 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
3397 $may_save = undef if $_no_auth_cache;
3398 print STDERR "Error validating server certificate for '$realm':\n";
3399 {
3400 no warnings 'once';
3401 # All variables SVN::Auth::SSL::* are used only once,
3402 # so we're shutting up Perl warnings about this.
3403 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
3404 print STDERR " - The certificate is not issued ",
3405 "by a trusted authority. Use the\n",
3406 " fingerprint to validate ",
3407 "the certificate manually!\n";
3408 }
3409 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
3410 print STDERR " - The certificate hostname ",
3411 "does not match.\n";
3412 }
3413 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
3414 print STDERR " - The certificate is not yet valid.\n";
3415 }
3416 if ($failures & $SVN::Auth::SSL::EXPIRED) {
3417 print STDERR " - The certificate has expired.\n";
3418 }
3419 if ($failures & $SVN::Auth::SSL::OTHER) {
3420 print STDERR " - The certificate has ",
3421 "an unknown error.\n";
3422 }
3423 } # no warnings 'once'
3424 printf STDERR
3425 "Certificate information:\n".
3426 " - Hostname: %s\n".
3427 " - Valid: from %s until %s\n".
3428 " - Issuer: %s\n".
3429 " - Fingerprint: %s\n",
3430 map $cert_info->$_, qw(hostname valid_from valid_until
3431 issuer_dname fingerprint);
3432 my $choice;
3433 prompt:
3434 print STDERR $may_save ?
3435 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
3436 "(R)eject or accept (t)emporarily? ";
3437 STDERR->flush;
3438 $choice = lc(substr(<STDIN> || 'R', 0, 1));
3439 if ($choice =~ /^t$/i) {
3440 $cred->may_save(undef);
3441 } elsif ($choice =~ /^r$/i) {
3442 return -1;
3443 } elsif ($may_save && $choice =~ /^p$/i) {
3444 $cred->may_save($may_save);
3445 } else {
3446 goto prompt;
3447 }
3448 $cred->accepted_failures($failures);
3449 $SVN::_Core::SVN_NO_ERROR;
3450 }
3451
3452 sub ssl_client_cert {
3453 my ($cred, $realm, $may_save, $pool) = @_;
3454 $may_save = undef if $_no_auth_cache;
3455 print STDERR "Client certificate filename: ";
3456 STDERR->flush;
3457 chomp(my $filename = <STDIN>);
3458 $cred->cert_file($filename);
3459 $cred->may_save($may_save);
3460 $SVN::_Core::SVN_NO_ERROR;
3461 }
3462
3463 sub ssl_client_cert_pw {
3464 my ($cred, $realm, $may_save, $pool) = @_;
3465 $may_save = undef if $_no_auth_cache;
3466 $cred->password(_read_password("Password: ", $realm));
3467 $cred->may_save($may_save);
3468 $SVN::_Core::SVN_NO_ERROR;
3469 }
3470
3471 sub username {
3472 my ($cred, $realm, $may_save, $pool) = @_;
3473 $may_save = undef if $_no_auth_cache;
3474 if (defined $realm && length $realm) {
3475 print STDERR "Authentication realm: $realm\n";
3476 }
3477 my $username;
3478 if (defined $_username) {
3479 $username = $_username;
3480 } else {
3481 print STDERR "Username: ";
3482 STDERR->flush;
3483 chomp($username = <STDIN>);
3484 }
3485 $cred->username($username);
3486 $cred->may_save($may_save);
3487 $SVN::_Core::SVN_NO_ERROR;
3488 }
3489
3490 sub _read_password {
3491 my ($prompt, $realm) = @_;
3492 print STDERR $prompt;
3493 STDERR->flush;
3494 require Term::ReadKey;
3495 Term::ReadKey::ReadMode('noecho');
3496 my $password = '';
3497 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3498 last if $key =~ /[\012\015]/; # \n\r
3499 $password .= $key;
3500 }
3501 Term::ReadKey::ReadMode('restore');
3502 print STDERR "\n";
3503 STDERR->flush;
3504 $password;
3505 }
3506
3507 package SVN::Git::Fetcher;
3508 use vars qw/@ISA/;
3509 use strict;
3510 use warnings;
3511 use Carp qw/croak/;
3512 use File::Temp qw/tempfile/;
3513 use IO::File qw//;
3514 use vars qw/$_ignore_regex/;
3515
3516 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3517 sub new {
3518 my ($class, $git_svn, $switch_path) = @_;
3519 my $self = SVN::Delta::Editor->new;
3520 bless $self, $class;
3521 if (exists $git_svn->{last_commit}) {
3522 $self->{c} = $git_svn->{last_commit};
3523 $self->{empty_symlinks} =
3524 _mark_empty_symlinks($git_svn, $switch_path);
3525 }
3526 $self->{ignore_regex} = eval { command_oneline('config', '--get',
3527 "svn-remote.$git_svn->{repo_id}.ignore-paths") };
3528 $self->{empty} = {};
3529 $self->{dir_prop} = {};
3530 $self->{file_prop} = {};
3531 $self->{absent_dir} = {};
3532 $self->{absent_file} = {};
3533 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3534 $self;
3535 }
3536
3537 # this uses the Ra object, so it must be called before do_{switch,update},
3538 # not inside them (when the Git::SVN::Fetcher object is passed) to
3539 # do_{switch,update}
3540 sub _mark_empty_symlinks {
3541 my ($git_svn, $switch_path) = @_;
3542 my $bool = Git::config_bool('svn.brokenSymlinkWorkaround');
3543 return {} if (!defined($bool)) || (defined($bool) && ! $bool);
3544
3545 my %ret;
3546 my ($rev, $cmt) = $git_svn->last_rev_commit;
3547 return {} unless ($rev && $cmt);
3548
3549 # allow the warning to be printed for each revision we fetch to
3550 # ensure the user sees it. The user can also disable the workaround
3551 # on the repository even while git svn is running and the next
3552 # revision fetched will skip this expensive function.
3553 my $printed_warning;
3554 chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`);
3555 my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt);
3556 local $/ = "\0";
3557 my $pfx = defined($switch_path) ? $switch_path : $git_svn->{path};
3558 $pfx .= '/' if length($pfx);
3559 while (<$ls>) {
3560 chomp;
3561 s/\A100644 blob $empty_blob\t//o or next;
3562 unless ($printed_warning) {
3563 print STDERR "Scanning for empty symlinks, ",
3564 "this may take a while if you have ",
3565 "many empty files\n",
3566 "You may disable this with `",
3567 "git config svn.brokenSymlinkWorkaround ",
3568 "false'.\n",
3569 "This may be done in a different ",
3570 "terminal without restarting ",
3571 "git svn\n";
3572 $printed_warning = 1;
3573 }
3574 my $path = $_;
3575 my (undef, $props) =
3576 $git_svn->ra->get_file($pfx.$path, $rev, undef);
3577 if ($props->{'svn:special'}) {
3578 $ret{$path} = 1;
3579 }
3580 }
3581 command_close_pipe($ls, $ctx);
3582 \%ret;
3583 }
3584
3585 # returns true if a given path is inside a ".git" directory
3586 sub in_dot_git {
3587 $_[0] =~ m{(?:^|/)\.git(?:/|$)};
3588 }
3589
3590 # return value: 0 -- don't ignore, 1 -- ignore
3591 sub is_path_ignored {
3592 my ($self, $path) = @_;
3593 return 1 if in_dot_git($path);
3594 return 1 if defined($self->{ignore_regex}) &&
3595 $path =~ m!$self->{ignore_regex}!;
3596 return 0 unless defined($_ignore_regex);
3597 return 1 if $path =~ m!$_ignore_regex!o;
3598 return 0;
3599 }
3600
3601 sub set_path_strip {
3602 my ($self, $path) = @_;
3603 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3604 }
3605
3606 sub open_root {
3607 { path => '' };
3608 }
3609
3610 sub open_directory {
3611 my ($self, $path, $pb, $rev) = @_;
3612 { path => $path };
3613 }
3614
3615 sub git_path {
3616 my ($self, $path) = @_;
3617 if ($self->{path_strip}) {
3618 $path =~ s!$self->{path_strip}!! or
3619 die "Failed to strip path '$path' ($self->{path_strip})\n";
3620 }
3621 $path;
3622 }
3623
3624 sub delete_entry {
3625 my ($self, $path, $rev, $pb) = @_;
3626 return undef if $self->is_path_ignored($path);
3627
3628 my $gpath = $self->git_path($path);
3629 return undef if ($gpath eq '');
3630
3631 # remove entire directories.
3632 my ($tree) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
3633 =~ /\A040000 tree ([a-f\d]{40})\t\Q$gpath\E\0/);
3634 if ($tree) {
3635 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3636 -r --name-only -z/,
3637 $tree);
3638 local $/ = "\0";
3639 while (<$ls>) {
3640 chomp;
3641 my $rmpath = "$gpath/$_";
3642 $self->{gii}->remove($rmpath);
3643 print "\tD\t$rmpath\n" unless $::_q;
3644 }
3645 print "\tD\t$gpath/\n" unless $::_q;
3646 command_close_pipe($ls, $ctx);
3647 $self->{empty}->{$path} = 0
3648 } else {
3649 $self->{gii}->remove($gpath);
3650 print "\tD\t$gpath\n" unless $::_q;
3651 }
3652 undef;
3653 }
3654
3655 sub open_file {
3656 my ($self, $path, $pb, $rev) = @_;
3657 my ($mode, $blob);
3658
3659 goto out if $self->is_path_ignored($path);
3660
3661 my $gpath = $self->git_path($path);
3662 ($mode, $blob) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
3663 =~ /\A(\d{6}) blob ([a-f\d]{40})\t\Q$gpath\E\0/);
3664 unless (defined $mode && defined $blob) {
3665 die "$path was not found in commit $self->{c} (r$rev)\n";
3666 }
3667 if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) {
3668 $mode = '120000';
3669 }
3670 out:
3671 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3672 pool => SVN::Pool->new, action => 'M' };
3673 }
3674
3675 sub add_file {
3676 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3677 my $mode;
3678
3679 if (!$self->is_path_ignored($path)) {
3680 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3681 delete $self->{empty}->{$dir};
3682 $mode = '100644';
3683 }
3684 { path => $path, mode_a => $mode, mode_b => $mode,
3685 pool => SVN::Pool->new, action => 'A' };
3686 }
3687
3688 sub add_directory {
3689 my ($self, $path, $cp_path, $cp_rev) = @_;
3690 goto out if $self->is_path_ignored($path);
3691 my $gpath = $self->git_path($path);
3692 if ($gpath eq '') {
3693 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3694 -r --name-only -z/,
3695 $self->{c});
3696 local $/ = "\0";
3697 while (<$ls>) {
3698 chomp;
3699 $self->{gii}->remove($_);
3700 print "\tD\t$_\n" unless $::_q;
3701 }
3702 command_close_pipe($ls, $ctx);
3703 $self->{empty}->{$path} = 0;
3704 }
3705 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3706 delete $self->{empty}->{$dir};
3707 $self->{empty}->{$path} = 1;
3708 out:
3709 { path => $path };
3710 }
3711
3712 sub change_dir_prop {
3713 my ($self, $db, $prop, $value) = @_;
3714 return undef if $self->is_path_ignored($db->{path});
3715 $self->{dir_prop}->{$db->{path}} ||= {};
3716 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
3717 undef;
3718 }
3719
3720 sub absent_directory {
3721 my ($self, $path, $pb) = @_;
3722 return undef if $self->is_path_ignored($path);
3723 $self->{absent_dir}->{$pb->{path}} ||= [];
3724 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
3725 undef;
3726 }
3727
3728 sub absent_file {
3729 my ($self, $path, $pb) = @_;
3730 return undef if $self->is_path_ignored($path);
3731 $self->{absent_file}->{$pb->{path}} ||= [];
3732 push @{$self->{absent_file}->{$pb->{path}}}, $path;
3733 undef;
3734 }
3735
3736 sub change_file_prop {
3737 my ($self, $fb, $prop, $value) = @_;
3738 return undef if $self->is_path_ignored($fb->{path});
3739 if ($prop eq 'svn:executable') {
3740 if ($fb->{mode_b} != 120000) {
3741 $fb->{mode_b} = defined $value ? 100755 : 100644;
3742 }
3743 } elsif ($prop eq 'svn:special') {
3744 $fb->{mode_b} = defined $value ? 120000 : 100644;
3745 } else {
3746 $self->{file_prop}->{$fb->{path}} ||= {};
3747 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
3748 }
3749 undef;
3750 }
3751
3752 sub apply_textdelta {
3753 my ($self, $fb, $exp) = @_;
3754 return undef if $self->is_path_ignored($fb->{path});
3755 my $fh = $::_repository->temp_acquire('svn_delta');
3756 # $fh gets auto-closed() by SVN::TxDelta::apply(),
3757 # (but $base does not,) so dup() it for reading in close_file
3758 open my $dup, '<&', $fh or croak $!;
3759 my $base = $::_repository->temp_acquire('git_blob');
3760
3761 if ($fb->{blob}) {
3762 my ($base_is_link, $size);
3763
3764 if ($fb->{mode_a} eq '120000' &&
3765 ! $self->{empty_symlinks}->{$fb->{path}}) {
3766 print $base 'link ' or die "print $!\n";
3767 $base_is_link = 1;
3768 }
3769 retry:
3770 $size = $::_repository->cat_blob($fb->{blob}, $base);
3771 die "Failed to read object $fb->{blob}" if ($size < 0);
3772
3773 if (defined $exp) {
3774 seek $base, 0, 0 or croak $!;
3775 my $got = ::md5sum($base);
3776 if ($got ne $exp) {
3777 my $err = "Checksum mismatch: ".
3778 "$fb->{path} $fb->{blob}\n" .
3779 "expected: $exp\n" .
3780 " got: $got\n";
3781 if ($base_is_link) {
3782 warn $err,
3783 "Retrying... (possibly ",
3784 "a bad symlink from SVN)\n";
3785 $::_repository->temp_reset($base);
3786 $base_is_link = 0;
3787 goto retry;
3788 }
3789 die $err;
3790 }
3791 }
3792 }
3793 seek $base, 0, 0 or croak $!;
3794 $fb->{fh} = $fh;
3795 $fb->{base} = $base;
3796 [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
3797 }
3798
3799 sub close_file {
3800 my ($self, $fb, $exp) = @_;
3801 return undef if $self->is_path_ignored($fb->{path});
3802
3803 my $hash;
3804 my $path = $self->git_path($fb->{path});
3805 if (my $fh = $fb->{fh}) {
3806 if (defined $exp) {
3807 seek($fh, 0, 0) or croak $!;
3808 my $got = ::md5sum($fh);
3809 if ($got ne $exp) {
3810 die "Checksum mismatch: $path\n",
3811 "expected: $exp\n got: $got\n";
3812 }
3813 }
3814 if ($fb->{mode_b} == 120000) {
3815 sysseek($fh, 0, 0) or croak $!;
3816 my $rd = sysread($fh, my $buf, 5);
3817
3818 if (!defined $rd) {
3819 croak "sysread: $!\n";
3820 } elsif ($rd == 0) {
3821 warn "$path has mode 120000",
3822 " but it points to nothing\n",
3823 "converting to an empty file with mode",
3824 " 100644\n";
3825 $fb->{mode_b} = '100644';
3826 } elsif ($buf ne 'link ') {
3827 warn "$path has mode 120000",
3828 " but is not a link\n";
3829 } else {
3830 my $tmp_fh = $::_repository->temp_acquire(
3831 'svn_hash');
3832 my $res;
3833 while ($res = sysread($fh, my $str, 1024)) {
3834 my $out = syswrite($tmp_fh, $str, $res);
3835 defined($out) && $out == $res
3836 or croak("write ",
3837 Git::temp_path($tmp_fh),
3838 ": $!\n");
3839 }
3840 defined $res or croak $!;
3841
3842 ($fh, $tmp_fh) = ($tmp_fh, $fh);
3843 Git::temp_release($tmp_fh, 1);
3844 }
3845 }
3846
3847 $hash = $::_repository->hash_and_insert_object(
3848 Git::temp_path($fh));
3849 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
3850
3851 Git::temp_release($fb->{base}, 1);
3852 Git::temp_release($fh, 1);
3853 } else {
3854 $hash = $fb->{blob} or die "no blob information\n";
3855 }
3856 $fb->{pool}->clear;
3857 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
3858 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
3859 undef;
3860 }
3861
3862 sub abort_edit {
3863 my $self = shift;
3864 $self->{nr} = $self->{gii}->{nr};
3865 delete $self->{gii};
3866 $self->SUPER::abort_edit(@_);
3867 }
3868
3869 sub close_edit {
3870 my $self = shift;
3871 $self->{git_commit_ok} = 1;
3872 $self->{nr} = $self->{gii}->{nr};
3873 delete $self->{gii};
3874 $self->SUPER::close_edit(@_);
3875 }
3876
3877 package SVN::Git::Editor;
3878 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
3879 use strict;
3880 use warnings;
3881 use Carp qw/croak/;
3882 use IO::File;
3883
3884 sub new {
3885 my ($class, $opts) = @_;
3886 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
3887 die "$_ required!\n" unless (defined $opts->{$_});
3888 }
3889
3890 my $pool = SVN::Pool->new;
3891 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
3892 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
3893 $opts->{r}, $mods);
3894
3895 # $opts->{ra} functions should not be used after this:
3896 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
3897 $opts->{editor_cb}, $pool);
3898 my $self = SVN::Delta::Editor->new(@ce, $pool);
3899 bless $self, $class;
3900 foreach (qw/svn_path r tree_a tree_b/) {
3901 $self->{$_} = $opts->{$_};
3902 }
3903 $self->{url} = $opts->{ra}->{url};
3904 $self->{mods} = $mods;
3905 $self->{types} = $types;
3906 $self->{pool} = $pool;
3907 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
3908 $self->{rm} = { };
3909 $self->{path_prefix} = length $self->{svn_path} ?
3910 "$self->{svn_path}/" : '';
3911 $self->{config} = $opts->{config};
3912 return $self;
3913 }
3914
3915 sub generate_diff {
3916 my ($tree_a, $tree_b) = @_;
3917 my @diff_tree = qw(diff-tree -z -r);
3918 if ($_cp_similarity) {
3919 push @diff_tree, "-C$_cp_similarity";
3920 } else {
3921 push @diff_tree, '-C';
3922 }
3923 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
3924 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
3925 push @diff_tree, $tree_a, $tree_b;
3926 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
3927 local $/ = "\0";
3928 my $state = 'meta';
3929 my @mods;
3930 while (<$diff_fh>) {
3931 chomp $_; # this gets rid of the trailing "\0"
3932 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
3933 ($::sha1)\s($::sha1)\s
3934 ([MTCRAD])\d*$/xo) {
3935 push @mods, { mode_a => $1, mode_b => $2,
3936 sha1_a => $3, sha1_b => $4,
3937 chg => $5 };
3938 if ($5 =~ /^(?:C|R)$/) {
3939 $state = 'file_a';
3940 } else {
3941 $state = 'file_b';
3942 }
3943 } elsif ($state eq 'file_a') {
3944 my $x = $mods[$#mods] or croak "Empty array\n";
3945 if ($x->{chg} !~ /^(?:C|R)$/) {
3946 croak "Error parsing $_, $x->{chg}\n";
3947 }
3948 $x->{file_a} = $_;
3949 $state = 'file_b';
3950 } elsif ($state eq 'file_b') {
3951 my $x = $mods[$#mods] or croak "Empty array\n";
3952 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
3953 croak "Error parsing $_, $x->{chg}\n";
3954 }
3955 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
3956 croak "Error parsing $_, $x->{chg}\n";
3957 }
3958 $x->{file_b} = $_;
3959 $state = 'meta';
3960 } else {
3961 croak "Error parsing $_\n";
3962 }
3963 }
3964 command_close_pipe($diff_fh, $ctx);
3965 \@mods;
3966 }
3967
3968 sub check_diff_paths {
3969 my ($ra, $pfx, $rev, $mods) = @_;
3970 my %types;
3971 $pfx .= '/' if length $pfx;
3972
3973 sub type_diff_paths {
3974 my ($ra, $types, $path, $rev) = @_;
3975 my @p = split m#/+#, $path;
3976 my $c = shift @p;
3977 unless (defined $types->{$c}) {
3978 $types->{$c} = $ra->check_path($c, $rev);
3979 }
3980 while (@p) {
3981 $c .= '/' . shift @p;
3982 next if defined $types->{$c};
3983 $types->{$c} = $ra->check_path($c, $rev);
3984 }
3985 }
3986
3987 foreach my $m (@$mods) {
3988 foreach my $f (qw/file_a file_b/) {
3989 next unless defined $m->{$f};
3990 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
3991 if (length $pfx.$dir && ! defined $types{$dir}) {
3992 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
3993 }
3994 }
3995 }
3996 \%types;
3997 }
3998
3999 sub split_path {
4000 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
4001 }
4002
4003 sub repo_path {
4004 my ($self, $path) = @_;
4005 $self->{path_prefix}.(defined $path ? $path : '');
4006 }
4007
4008 sub url_path {
4009 my ($self, $path) = @_;
4010 if ($self->{url} =~ m#^https?://#) {
4011 $path =~ s!([^~a-zA-Z0-9_./-])!uc sprintf("%%%02x",ord($1))!eg;
4012 }
4013 $self->{url} . '/' . $self->repo_path($path);
4014 }
4015
4016 sub rmdirs {
4017 my ($self) = @_;
4018 my $rm = $self->{rm};
4019 delete $rm->{''}; # we never delete the url we're tracking
4020 return unless %$rm;
4021
4022 foreach (keys %$rm) {
4023 my @d = split m#/#, $_;
4024 my $c = shift @d;
4025 $rm->{$c} = 1;
4026 while (@d) {
4027 $c .= '/' . shift @d;
4028 $rm->{$c} = 1;
4029 }
4030 }
4031 delete $rm->{$self->{svn_path}};
4032 delete $rm->{''}; # we never delete the url we're tracking
4033 return unless %$rm;
4034
4035 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
4036 $self->{tree_b});
4037 local $/ = "\0";
4038 while (<$fh>) {
4039 chomp;
4040 my @dn = split m#/#, $_;
4041 while (pop @dn) {
4042 delete $rm->{join '/', @dn};
4043 }
4044 unless (%$rm) {
4045 close $fh;
4046 return;
4047 }
4048 }
4049 command_close_pipe($fh, $ctx);
4050
4051 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
4052 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
4053 $self->close_directory($bat->{$d}, $p);
4054 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
4055 print "\tD+\t$d/\n" unless $::_q;
4056 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
4057 delete $bat->{$d};
4058 }
4059 }
4060
4061 sub open_or_add_dir {
4062 my ($self, $full_path, $baton) = @_;
4063 my $t = $self->{types}->{$full_path};
4064 if (!defined $t) {
4065 die "$full_path not known in r$self->{r} or we have a bug!\n";
4066 }
4067 {
4068 no warnings 'once';
4069 # SVN::Node::none and SVN::Node::file are used only once,
4070 # so we're shutting up Perl's warnings about them.
4071 if ($t == $SVN::Node::none) {
4072 return $self->add_directory($full_path, $baton,
4073 undef, -1, $self->{pool});
4074 } elsif ($t == $SVN::Node::dir) {
4075 return $self->open_directory($full_path, $baton,
4076 $self->{r}, $self->{pool});
4077 } # no warnings 'once'
4078 print STDERR "$full_path already exists in repository at ",
4079 "r$self->{r} and it is not a directory (",
4080 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
4081 } # no warnings 'once'
4082 exit 1;
4083 }
4084
4085 sub ensure_path {
4086 my ($self, $path) = @_;
4087 my $bat = $self->{bat};
4088 my $repo_path = $self->repo_path($path);
4089 return $bat->{''} unless (length $repo_path);
4090 my @p = split m#/+#, $repo_path;
4091 my $c = shift @p;
4092 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
4093 while (@p) {
4094 my $c0 = $c;
4095 $c .= '/' . shift @p;
4096 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
4097 }
4098 return $bat->{$c};
4099 }
4100
4101 # Subroutine to convert a globbing pattern to a regular expression.
4102 # From perl cookbook.
4103 sub glob2pat {
4104 my $globstr = shift;
4105 my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
4106 $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
4107 return '^' . $globstr . '$';
4108 }
4109
4110 sub check_autoprop {
4111 my ($self, $pattern, $properties, $file, $fbat) = @_;
4112 # Convert the globbing pattern to a regular expression.
4113 my $regex = glob2pat($pattern);
4114 # Check if the pattern matches the file name.
4115 if($file =~ m/($regex)/) {
4116 # Parse the list of properties to set.
4117 my @props = split(/;/, $properties);
4118 foreach my $prop (@props) {
4119 # Parse 'name=value' syntax and set the property.
4120 if ($prop =~ /([^=]+)=(.*)/) {
4121 my ($n,$v) = ($1,$2);
4122 for ($n, $v) {
4123 s/^\s+//; s/\s+$//;
4124 }
4125 $self->change_file_prop($fbat, $n, $v);
4126 }
4127 }
4128 }
4129 }
4130
4131 sub apply_autoprops {
4132 my ($self, $file, $fbat) = @_;
4133 my $conf_t = ${$self->{config}}{'config'};
4134 no warnings 'once';
4135 # Check [miscellany]/enable-auto-props in svn configuration.
4136 if (SVN::_Core::svn_config_get_bool(
4137 $conf_t,
4138 $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
4139 $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
4140 0)) {
4141 # Auto-props are enabled. Enumerate them to look for matches.
4142 my $callback = sub {
4143 $self->check_autoprop($_[0], $_[1], $file, $fbat);
4144 };
4145 SVN::_Core::svn_config_enumerate(
4146 $conf_t,
4147 $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
4148 $callback);
4149 }
4150 }
4151
4152 sub A {
4153 my ($self, $m) = @_;
4154 my ($dir, $file) = split_path($m->{file_b});
4155 my $pbat = $self->ensure_path($dir);
4156 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4157 undef, -1);
4158 print "\tA\t$m->{file_b}\n" unless $::_q;
4159 $self->apply_autoprops($file, $fbat);
4160 $self->chg_file($fbat, $m);
4161 $self->close_file($fbat,undef,$self->{pool});
4162 }
4163
4164 sub C {
4165 my ($self, $m) = @_;
4166 my ($dir, $file) = split_path($m->{file_b});
4167 my $pbat = $self->ensure_path($dir);
4168 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4169 $self->url_path($m->{file_a}), $self->{r});
4170 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
4171 $self->chg_file($fbat, $m);
4172 $self->close_file($fbat,undef,$self->{pool});
4173 }
4174
4175 sub delete_entry {
4176 my ($self, $path, $pbat) = @_;
4177 my $rpath = $self->repo_path($path);
4178 my ($dir, $file) = split_path($rpath);
4179 $self->{rm}->{$dir} = 1;
4180 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
4181 }
4182
4183 sub R {
4184 my ($self, $m) = @_;
4185 my ($dir, $file) = split_path($m->{file_b});
4186 my $pbat = $self->ensure_path($dir);
4187 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
4188 $self->url_path($m->{file_a}), $self->{r});
4189 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
4190 $self->apply_autoprops($file, $fbat);
4191 $self->chg_file($fbat, $m);
4192 $self->close_file($fbat,undef,$self->{pool});
4193
4194 ($dir, $file) = split_path($m->{file_a});
4195 $pbat = $self->ensure_path($dir);
4196 $self->delete_entry($m->{file_a}, $pbat);
4197 }
4198
4199 sub M {
4200 my ($self, $m) = @_;
4201 my ($dir, $file) = split_path($m->{file_b});
4202 my $pbat = $self->ensure_path($dir);
4203 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
4204 $pbat,$self->{r},$self->{pool});
4205 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
4206 $self->chg_file($fbat, $m);
4207 $self->close_file($fbat,undef,$self->{pool});
4208 }
4209
4210 sub T { shift->M(@_) }
4211
4212 sub change_file_prop {
4213 my ($self, $fbat, $pname, $pval) = @_;
4214 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
4215 }
4216
4217 sub _chg_file_get_blob ($$$$) {
4218 my ($self, $fbat, $m, $which) = @_;
4219 my $fh = $::_repository->temp_acquire("git_blob_$which");
4220 if ($m->{"mode_$which"} =~ /^120/) {
4221 print $fh 'link ' or croak $!;
4222 $self->change_file_prop($fbat,'svn:special','*');
4223 } elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) {
4224 $self->change_file_prop($fbat,'svn:special',undef);
4225 }
4226 my $blob = $m->{"sha1_$which"};
4227 return ($fh,) if ($blob =~ /^0{40}$/);
4228 my $size = $::_repository->cat_blob($blob, $fh);
4229 croak "Failed to read object $blob" if ($size < 0);
4230 $fh->flush == 0 or croak $!;
4231 seek $fh, 0, 0 or croak $!;
4232
4233 my $exp = ::md5sum($fh);
4234 seek $fh, 0, 0 or croak $!;
4235 return ($fh, $exp);
4236 }
4237
4238 sub chg_file {
4239 my ($self, $fbat, $m) = @_;
4240 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
4241 $self->change_file_prop($fbat,'svn:executable','*');
4242 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
4243 $self->change_file_prop($fbat,'svn:executable',undef);
4244 }
4245 my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a';
4246 my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b';
4247 my $pool = SVN::Pool->new;
4248 my $atd = $self->apply_textdelta($fbat, $exp_a, $pool);
4249 if (-s $fh_a) {
4250 my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool);
4251 my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool);
4252 if (defined $res) {
4253 die "Unexpected result from send_txstream: $res\n",
4254 "(SVN::Core::VERSION: $SVN::Core::VERSION)\n";
4255 }
4256 } else {
4257 my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool);
4258 die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n"
4259 if ($got ne $exp_b);
4260 }
4261 Git::temp_release($fh_b, 1);
4262 Git::temp_release($fh_a, 1);
4263 $pool->clear;
4264 }
4265
4266 sub D {
4267 my ($self, $m) = @_;
4268 my ($dir, $file) = split_path($m->{file_b});
4269 my $pbat = $self->ensure_path($dir);
4270 print "\tD\t$m->{file_b}\n" unless $::_q;
4271 $self->delete_entry($m->{file_b}, $pbat);
4272 }
4273
4274 sub close_edit {
4275 my ($self) = @_;
4276 my ($p,$bat) = ($self->{pool}, $self->{bat});
4277 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
4278 next if $_ eq '';
4279 $self->close_directory($bat->{$_}, $p);
4280 }
4281 $self->close_directory($bat->{''}, $p);
4282 $self->SUPER::close_edit($p);
4283 $p->clear;
4284 }
4285
4286 sub abort_edit {
4287 my ($self) = @_;
4288 $self->SUPER::abort_edit($self->{pool});
4289 }
4290
4291 sub DESTROY {
4292 my $self = shift;
4293 $self->SUPER::DESTROY(@_);
4294 $self->{pool}->clear;
4295 }
4296
4297 # this drives the editor
4298 sub apply_diff {
4299 my ($self) = @_;
4300 my $mods = $self->{mods};
4301 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
4302 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
4303 my $f = $m->{chg};
4304 if (defined $o{$f}) {
4305 $self->$f($m);
4306 } else {
4307 fatal("Invalid change type: $f");
4308 }
4309 }
4310 $self->rmdirs if $_rmdir;
4311 if (@$mods == 0) {
4312 $self->abort_edit;
4313 } else {
4314 $self->close_edit;
4315 }
4316 return scalar @$mods;
4317 }
4318
4319 package Git::SVN::Ra;
4320 use vars qw/@ISA $config_dir $_log_window_size/;
4321 use strict;
4322 use warnings;
4323 my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
4324
4325 BEGIN {
4326 # enforce temporary pool usage for some simple functions
4327 no strict 'refs';
4328 for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root
4329 get_file/) {
4330 my $SUPER = "SUPER::$f";
4331 *$f = sub {
4332 my $self = shift;
4333 my $pool = SVN::Pool->new;
4334 my @ret = $self->$SUPER(@_,$pool);
4335 $pool->clear;
4336 wantarray ? @ret : $ret[0];
4337 };
4338 }
4339 }
4340
4341 sub _auth_providers () {
4342 [
4343 SVN::Client::get_simple_provider(),
4344 SVN::Client::get_ssl_server_trust_file_provider(),
4345 SVN::Client::get_simple_prompt_provider(
4346 \&Git::SVN::Prompt::simple, 2),
4347 SVN::Client::get_ssl_client_cert_file_provider(),
4348 SVN::Client::get_ssl_client_cert_prompt_provider(
4349 \&Git::SVN::Prompt::ssl_client_cert, 2),
4350 SVN::Client::get_ssl_client_cert_pw_file_provider(),
4351 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
4352 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
4353 SVN::Client::get_username_provider(),
4354 SVN::Client::get_ssl_server_trust_prompt_provider(
4355 \&Git::SVN::Prompt::ssl_server_trust),
4356 SVN::Client::get_username_prompt_provider(
4357 \&Git::SVN::Prompt::username, 2)
4358 ]
4359 }
4360
4361 sub escape_uri_only {
4362 my ($uri) = @_;
4363 my @tmp;
4364 foreach (split m{/}, $uri) {
4365 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
4366 push @tmp, $_;
4367 }
4368 join('/', @tmp);
4369 }
4370
4371 sub escape_url {
4372 my ($url) = @_;
4373 if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
4374 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
4375 $url = "$scheme://$domain$uri";
4376 }
4377 $url;
4378 }
4379
4380 sub new {
4381 my ($class, $url) = @_;
4382 $url =~ s!/+$!!;
4383 return $RA if ($RA && $RA->{url} eq $url);
4384
4385 SVN::_Core::svn_config_ensure($config_dir, undef);
4386 my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
4387 my $config = SVN::Core::config_get_config($config_dir);
4388 $RA = undef;
4389 my $dont_store_passwords = 1;
4390 my $conf_t = ${$config}{'config'};
4391 {
4392 no warnings 'once';
4393 # The usage of $SVN::_Core::SVN_CONFIG_* variables
4394 # produces warnings that variables are used only once.
4395 # I had not found the better way to shut them up, so
4396 # the warnings of type 'once' are disabled in this block.
4397 if (SVN::_Core::svn_config_get_bool($conf_t,
4398 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4399 $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
4400 1) == 0) {
4401 SVN::_Core::svn_auth_set_parameter($baton,
4402 $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
4403 bless (\$dont_store_passwords, "_p_void"));
4404 }
4405 if (SVN::_Core::svn_config_get_bool($conf_t,
4406 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4407 $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
4408 1) == 0) {
4409 $Git::SVN::Prompt::_no_auth_cache = 1;
4410 }
4411 } # no warnings 'once'
4412 my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
4413 config => $config,
4414 pool => SVN::Pool->new,
4415 auth_provider_callbacks => $callbacks);
4416 $self->{url} = $url;
4417 $self->{svn_path} = $url;
4418 $self->{repos_root} = $self->get_repos_root;
4419 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
4420 $self->{cache} = { check_path => { r => 0, data => {} },
4421 get_dir => { r => 0, data => {} } };
4422 $RA = bless $self, $class;
4423 }
4424
4425 sub check_path {
4426 my ($self, $path, $r) = @_;
4427 my $cache = $self->{cache}->{check_path};
4428 if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
4429 return $cache->{data}->{$path};
4430 }
4431 my $pool = SVN::Pool->new;
4432 my $t = $self->SUPER::check_path($path, $r, $pool);
4433 $pool->clear;
4434 if ($r != $cache->{r}) {
4435 %{$cache->{data}} = ();
4436 $cache->{r} = $r;
4437 }
4438 $cache->{data}->{$path} = $t;
4439 }
4440
4441 sub get_dir {
4442 my ($self, $dir, $r) = @_;
4443 my $cache = $self->{cache}->{get_dir};
4444 if ($r == $cache->{r}) {
4445 if (my $x = $cache->{data}->{$dir}) {
4446 return wantarray ? @$x : $x->[0];
4447 }
4448 }
4449 my $pool = SVN::Pool->new;
4450 my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
4451 my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
4452 $pool->clear;
4453 if ($r != $cache->{r}) {
4454 %{$cache->{data}} = ();
4455 $cache->{r} = $r;
4456 }
4457 $cache->{data}->{$dir} = [ \%dirents, $r, $props ];
4458 wantarray ? (\%dirents, $r, $props) : \%dirents;
4459 }
4460
4461 sub DESTROY {
4462 # do not call the real DESTROY since we store ourselves in $RA
4463 }
4464
4465 # get_log(paths, start, end, limit,
4466 # discover_changed_paths, strict_node_history, receiver)
4467 sub get_log {
4468 my ($self, @args) = @_;
4469 my $pool = SVN::Pool->new;
4470
4471 # svn_log_changed_path_t objects passed to get_log are likely to be
4472 # overwritten even if only the refs are copied to an external variable,
4473 # so we should dup the structures in their entirety. Using an
4474 # externally passed pool (instead of our temporary and quickly cleared
4475 # pool in Git::SVN::Ra) does not help matters at all...
4476 my $receiver = pop @args;
4477 my $prefix = "/".$self->{svn_path};
4478 $prefix =~ s#/+($)##;
4479 my $prefix_regex = qr#^\Q$prefix\E#;
4480 push(@args, sub {
4481 my ($paths) = $_[0];
4482 return &$receiver(@_) unless $paths;
4483 $_[0] = ();
4484 foreach my $p (keys %$paths) {
4485 my $i = $paths->{$p};
4486 # Make path relative to our url, not repos_root
4487 $p =~ s/$prefix_regex//;
4488 my %s = map { $_ => $i->$_; }
4489 qw/copyfrom_path copyfrom_rev action/;
4490 if ($s{'copyfrom_path'}) {
4491 $s{'copyfrom_path'} =~ s/$prefix_regex//;
4492 }
4493 $_[0]{$p} = \%s;
4494 }
4495 &$receiver(@_);
4496 });
4497
4498
4499 # the limit parameter was not supported in SVN 1.1.x, so we
4500 # drop it. Therefore, the receiver callback passed to it
4501 # is made aware of this limitation by being wrapped if
4502 # the limit passed to is being wrapped.
4503 if ($SVN::Core::VERSION le '1.2.0') {
4504 my $limit = splice(@args, 3, 1);
4505 if ($limit > 0) {
4506 my $receiver = pop @args;
4507 push(@args, sub { &$receiver(@_) if (--$limit >= 0) });
4508 }
4509 }
4510 my $ret = $self->SUPER::get_log(@args, $pool);
4511 $pool->clear;
4512 $ret;
4513 }
4514
4515 sub trees_match {
4516 my ($self, $url1, $rev1, $url2, $rev2) = @_;
4517 my $ctx = SVN::Client->new(auth => _auth_providers);
4518 my $out = IO::File->new_tmpfile;
4519
4520 # older SVN (1.1.x) doesn't take $pool as the last parameter for
4521 # $ctx->diff(), so we'll create a default one
4522 my $pool = SVN::Pool->new_default_sub;
4523
4524 $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
4525 $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
4526 $out->flush;
4527 my $ret = (($out->stat)[7] == 0);
4528 close $out or croak $!;
4529
4530 $ret;
4531 }
4532
4533 sub get_commit_editor {
4534 my ($self, $log, $cb, $pool) = @_;
4535 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
4536 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
4537 }
4538
4539 sub gs_do_update {
4540 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
4541 my $new = ($rev_a == $rev_b);
4542 my $path = $gs->{path};
4543
4544 if ($new && -e $gs->{index}) {
4545 unlink $gs->{index} or die
4546 "Couldn't unlink index: $gs->{index}: $!\n";
4547 }
4548 my $pool = SVN::Pool->new;
4549 $editor->set_path_strip($path);
4550 my (@pc) = split m#/#, $path;
4551 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
4552 1, $editor, $pool);
4553 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4554
4555 # Since we can't rely on svn_ra_reparent being available, we'll
4556 # just have to do some magic with set_path to make it so
4557 # we only want a partial path.
4558 my $sp = '';
4559 my $final = join('/', @pc);
4560 while (@pc) {
4561 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
4562 $sp .= '/' if length $sp;
4563 $sp .= shift @pc;
4564 }
4565 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
4566
4567 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
4568
4569 $reporter->finish_report($pool);
4570 $pool->clear;
4571 $editor->{git_commit_ok};
4572 }
4573
4574 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
4575 # svn_ra_reparent didn't work before 1.4)
4576 sub gs_do_switch {
4577 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
4578 my $path = $gs->{path};
4579 my $pool = SVN::Pool->new;
4580
4581 my $full_url = $self->{url};
4582 my $old_url = $full_url;
4583 $full_url .= '/' . $path if length $path;
4584 my ($ra, $reparented);
4585
4586 if ($old_url =~ m#^svn(\+ssh)?://# ||
4587 ($full_url =~ m#^https?://# &&
4588 escape_url($full_url) ne $full_url)) {
4589 $_[0] = undef;
4590 $self = undef;
4591 $RA = undef;
4592 $ra = Git::SVN::Ra->new($full_url);
4593 $ra_invalid = 1;
4594 } elsif ($old_url ne $full_url) {
4595 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool);
4596 $self->{url} = $full_url;
4597 $reparented = 1;
4598 }
4599
4600 $ra ||= $self;
4601 $url_b = escape_url($url_b);
4602 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
4603 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4604 $reporter->set_path('', $rev_a, 0, @lock, $pool);
4605 $reporter->finish_report($pool);
4606
4607 if ($reparented) {
4608 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
4609 $self->{url} = $old_url;
4610 }
4611
4612 $pool->clear;
4613 $editor->{git_commit_ok};
4614 }
4615
4616 sub longest_common_path {
4617 my ($gsv, $globs) = @_;
4618 my %common;
4619 my $common_max = scalar @$gsv;
4620
4621 foreach my $gs (@$gsv) {
4622 my @tmp = split m#/#, $gs->{path};
4623 my $p = '';
4624 foreach (@tmp) {
4625 $p .= length($p) ? "/$_" : $_;
4626 $common{$p} ||= 0;
4627 $common{$p}++;
4628 }
4629 }
4630 $globs ||= [];
4631 $common_max += scalar @$globs;
4632 foreach my $glob (@$globs) {
4633 my @tmp = split m#/#, $glob->{path}->{left};
4634 my $p = '';
4635 foreach (@tmp) {
4636 $p .= length($p) ? "/$_" : $_;
4637 $common{$p} ||= 0;
4638 $common{$p}++;
4639 }
4640 }
4641
4642 my $longest_path = '';
4643 foreach (sort {length $b <=> length $a} keys %common) {
4644 if ($common{$_} == $common_max) {
4645 $longest_path = $_;
4646 last;
4647 }
4648 }
4649 $longest_path;
4650 }
4651
4652 sub gs_fetch_loop_common {
4653 my ($self, $base, $head, $gsv, $globs) = @_;
4654 return if ($base > $head);
4655 my $inc = $_log_window_size;
4656 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
4657 my $longest_path = longest_common_path($gsv, $globs);
4658 my $ra_url = $self->{url};
4659 my $find_trailing_edge;
4660 while (1) {
4661 my %revs;
4662 my $err;
4663 my $err_handler = $SVN::Error::handler;
4664 $SVN::Error::handler = sub {
4665 ($err) = @_;
4666 skip_unknown_revs($err);
4667 };
4668 sub _cb {
4669 my ($paths, $r, $author, $date, $log) = @_;
4670 [ $paths,
4671 { author => $author, date => $date, log => $log } ];
4672 }
4673 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
4674 sub { $revs{$_[1]} = _cb(@_) });
4675 if ($err) {
4676 print "Checked through r$max\r";
4677 } else {
4678 $find_trailing_edge = 1;
4679 }
4680 if ($err and $find_trailing_edge) {
4681 print STDERR "Path '$longest_path' ",
4682 "was probably deleted:\n",
4683 $err->expanded_message,
4684 "\nWill attempt to follow ",
4685 "revisions r$min .. r$max ",
4686 "committed before the deletion\n";
4687 my $hi = $max;
4688 while (--$hi >= $min) {
4689 my $ok;
4690 $self->get_log([$longest_path], $min, $hi,
4691 0, 1, 1, sub {
4692 $ok = $_[1];
4693 $revs{$_[1]} = _cb(@_) });
4694 if ($ok) {
4695 print STDERR "r$min .. r$ok OK\n";
4696 last;
4697 }
4698 }
4699 $find_trailing_edge = 0;
4700 }
4701 $SVN::Error::handler = $err_handler;
4702
4703 my %exists = map { $_->{path} => $_ } @$gsv;
4704 foreach my $r (sort {$a <=> $b} keys %revs) {
4705 my ($paths, $logged) = @{$revs{$r}};
4706
4707 foreach my $gs ($self->match_globs(\%exists, $paths,
4708 $globs, $r)) {
4709 if ($gs->rev_map_max >= $r) {
4710 next;
4711 }
4712 next unless $gs->match_paths($paths, $r);
4713 $gs->{logged_rev_props} = $logged;
4714 if (my $last_commit = $gs->last_commit) {
4715 $gs->assert_index_clean($last_commit);
4716 }
4717 my $log_entry = $gs->do_fetch($paths, $r);
4718 if ($log_entry) {
4719 $gs->do_git_commit($log_entry);
4720 }
4721 $INDEX_FILES{$gs->{index}} = 1;
4722 }
4723 foreach my $g (@$globs) {
4724 my $k = "svn-remote.$g->{remote}." .
4725 "$g->{t}-maxRev";
4726 Git::SVN::tmp_config($k, $r);
4727 }
4728 if ($ra_invalid) {
4729 $_[0] = undef;
4730 $self = undef;
4731 $RA = undef;
4732 $self = Git::SVN::Ra->new($ra_url);
4733 $ra_invalid = undef;
4734 }
4735 }
4736 # pre-fill the .rev_db since it'll eventually get filled in
4737 # with '0' x40 if something new gets committed
4738 foreach my $gs (@$gsv) {
4739 next if $gs->rev_map_max >= $max;
4740 next if defined $gs->rev_map_get($max);
4741 $gs->rev_map_set($max, 0 x40);
4742 }
4743 foreach my $g (@$globs) {
4744 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
4745 Git::SVN::tmp_config($k, $max);
4746 }
4747 last if $max >= $head;
4748 $min = $max + 1;
4749 $max += $inc;
4750 $max = $head if ($max > $head);
4751 }
4752 Git::SVN::gc();
4753 }
4754
4755 sub get_dir_globbed {
4756 my ($self, $left, $depth, $r) = @_;
4757
4758 my @x = eval { $self->get_dir($left, $r) };
4759 return unless scalar @x == 3;
4760 my $dirents = $x[0];
4761 my @finalents;
4762 foreach my $de (keys %$dirents) {
4763 next if $dirents->{$de}->{kind} != $SVN::Node::dir;
4764 if ($depth > 1) {
4765 my @args = ("$left/$de", $depth - 1, $r);
4766 foreach my $dir ($self->get_dir_globbed(@args)) {
4767 push @finalents, "$de/$dir";
4768 }
4769 } else {
4770 push @finalents, $de;
4771 }
4772 }
4773 @finalents;
4774 }
4775
4776 sub match_globs {
4777 my ($self, $exists, $paths, $globs, $r) = @_;
4778
4779 sub get_dir_check {
4780 my ($self, $exists, $g, $r) = @_;
4781
4782 my @dirs = $self->get_dir_globbed($g->{path}->{left},
4783 $g->{path}->{depth},
4784 $r);
4785
4786 foreach my $de (@dirs) {
4787 my $p = $g->{path}->full_path($de);
4788 next if $exists->{$p};
4789 next if (length $g->{path}->{right} &&
4790 ($self->check_path($p, $r) !=
4791 $SVN::Node::dir));
4792 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
4793 $g->{ref}->full_path($de), 1);
4794 }
4795 }
4796 foreach my $g (@$globs) {
4797 if (my $path = $paths->{"/$g->{path}->{left}"}) {
4798 if ($path->{action} =~ /^[AR]$/) {
4799 get_dir_check($self, $exists, $g, $r);
4800 }
4801 }
4802 foreach (keys %$paths) {
4803 if (/$g->{path}->{left_regex}/ &&
4804 !/$g->{path}->{regex}/) {
4805 next if $paths->{$_}->{action} !~ /^[AR]$/;
4806 get_dir_check($self, $exists, $g, $r);
4807 }
4808 next unless /$g->{path}->{regex}/;
4809 my $p = $1;
4810 my $pathname = $g->{path}->full_path($p);
4811 next if $exists->{$pathname};
4812 next if ($self->check_path($pathname, $r) !=
4813 $SVN::Node::dir);
4814 $exists->{$pathname} = Git::SVN->init(
4815 $self->{url}, $pathname, undef,
4816 $g->{ref}->full_path($p), 1);
4817 }
4818 my $c = '';
4819 foreach (split m#/#, $g->{path}->{left}) {
4820 $c .= "/$_";
4821 next unless ($paths->{$c} &&
4822 ($paths->{$c}->{action} =~ /^[AR]$/));
4823 get_dir_check($self, $exists, $g, $r);
4824 }
4825 }
4826 values %$exists;
4827 }
4828
4829 sub minimize_url {
4830 my ($self) = @_;
4831 return $self->{url} if ($self->{url} eq $self->{repos_root});
4832 my $url = $self->{repos_root};
4833 my @components = split(m!/!, $self->{svn_path});
4834 my $c = '';
4835 do {
4836 $url .= "/$c" if length $c;
4837 eval {
4838 my $ra = (ref $self)->new($url);
4839 my $latest = $ra->get_latest_revnum;
4840 $ra->get_log("", $latest, 0, 1, 0, 1, sub {});
4841 };
4842 } while ($@ && ($c = shift @components));
4843 $url;
4844 }
4845
4846 sub can_do_switch {
4847 my $self = shift;
4848 unless (defined $can_do_switch) {
4849 my $pool = SVN::Pool->new;
4850 my $rep = eval {
4851 $self->do_switch(1, '', 0, $self->{url},
4852 SVN::Delta::Editor->new, $pool);
4853 };
4854 if ($@) {
4855 $can_do_switch = 0;
4856 } else {
4857 $rep->abort_report($pool);
4858 $can_do_switch = 1;
4859 }
4860 $pool->clear;
4861 }
4862 $can_do_switch;
4863 }
4864
4865 sub skip_unknown_revs {
4866 my ($err) = @_;
4867 my $errno = $err->apr_err();
4868 # Maybe the branch we're tracking didn't
4869 # exist when the repo started, so it's
4870 # not an error if it doesn't, just continue
4871 #
4872 # Wonderfully consistent library, eh?
4873 # 160013 - svn:// and file://
4874 # 175002 - http(s)://
4875 # 175007 - http(s):// (this repo required authorization, too...)
4876 # More codes may be discovered later...
4877 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
4878 my $err_key = $err->expanded_message;
4879 # revision numbers change every time, filter them out
4880 $err_key =~ s/\d+/\0/g;
4881 $err_key = "$errno\0$err_key";
4882 unless ($ignored_err{$err_key}) {
4883 warn "W: Ignoring error from SVN, path probably ",
4884 "does not exist: ($errno): ",
4885 $err->expanded_message,"\n";
4886 warn "W: Do not be alarmed at the above message ",
4887 "git-svn is just searching aggressively for ",
4888 "old history.\n",
4889 "This may take a while on large repositories\n";
4890 $ignored_err{$err_key} = 1;
4891 }
4892 return;
4893 }
4894 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
4895 }
4896
4897 package Git::SVN::Log;
4898 use strict;
4899 use warnings;
4900 use POSIX qw/strftime/;
4901 use Time::Local;
4902 use constant commit_log_separator => ('-' x 72) . "\n";
4903 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
4904 %rusers $show_commit $incremental/;
4905 my $l_fmt;
4906
4907 sub cmt_showable {
4908 my ($c) = @_;
4909 return 1 if defined $c->{r};
4910
4911 # big commit message got truncated by the 16k pretty buffer in rev-list
4912 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
4913 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
4914 @{$c->{l}} = ();
4915 my @log = command(qw/cat-file commit/, $c->{c});
4916
4917 # shift off the headers
4918 shift @log while ($log[0] ne '');
4919 shift @log;
4920
4921 # TODO: make $c->{l} not have a trailing newline in the future
4922 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
4923
4924 (undef, $c->{r}, undef) = ::extract_metadata(
4925 (grep(/^git-svn-id: /, @log))[-1]);
4926 }
4927 return defined $c->{r};
4928 }
4929
4930 sub log_use_color {
4931 return $color || Git->repository->get_colorbool('color.diff');
4932 }
4933
4934 sub git_svn_log_cmd {
4935 my ($r_min, $r_max, @args) = @_;
4936 my $head = 'HEAD';
4937 my (@files, @log_opts);
4938 foreach my $x (@args) {
4939 if ($x eq '--' || @files) {
4940 push @files, $x;
4941 } else {
4942 if (::verify_ref("$x^0")) {
4943 $head = $x;
4944 } else {
4945 push @log_opts, $x;
4946 }
4947 }
4948 }
4949
4950 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
4951 $gs ||= Git::SVN->_new;
4952 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
4953 $gs->refname);
4954 push @cmd, '-r' unless $non_recursive;
4955 push @cmd, qw/--raw --name-status/ if $verbose;
4956 push @cmd, '--color' if log_use_color();
4957 push @cmd, @log_opts;
4958 if (defined $r_max && $r_max == $r_min) {
4959 push @cmd, '--max-count=1';
4960 if (my $c = $gs->rev_map_get($r_max)) {
4961 push @cmd, $c;
4962 }
4963 } elsif (defined $r_max) {
4964 if ($r_max < $r_min) {
4965 ($r_min, $r_max) = ($r_max, $r_min);
4966 }
4967 my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
4968 my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
4969 # If there are no commits in the range, both $c_max and $c_min
4970 # will be undefined. If there is at least 1 commit in the
4971 # range, both will be defined.
4972 return () if !defined $c_min || !defined $c_max;
4973 if ($c_min eq $c_max) {
4974 push @cmd, '--max-count=1', $c_min;
4975 } else {
4976 push @cmd, '--boundary', "$c_min..$c_max";
4977 }
4978 }
4979 return (@cmd, @files);
4980 }
4981
4982 # adapted from pager.c
4983 sub config_pager {
4984 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
4985 if (!defined $pager) {
4986 $pager = 'less';
4987 } elsif (length $pager == 0 || $pager eq 'cat') {
4988 $pager = undef;
4989 }
4990 $ENV{GIT_PAGER_IN_USE} = defined($pager);
4991 }
4992
4993 sub run_pager {
4994 return unless -t *STDOUT && defined $pager;
4995 pipe my ($rfd, $wfd) or return;
4996 defined(my $pid = fork) or ::fatal "Can't fork: $!";
4997 if (!$pid) {
4998 open STDOUT, '>&', $wfd or
4999 ::fatal "Can't redirect to stdout: $!";
5000 return;
5001 }
5002 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
5003 $ENV{LESS} ||= 'FRSX';
5004 exec $pager or ::fatal "Can't run pager: $! ($pager)";
5005 }
5006
5007 sub format_svn_date {
5008 # some systmes don't handle or mishandle %z, so be creative.
5009 my $t = shift || time;
5010 my $gm = timelocal(gmtime($t));
5011 my $sign = qw( + + - )[ $t <=> $gm ];
5012 my $gmoff = sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
5013 return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t));
5014 }
5015
5016 sub parse_git_date {
5017 my ($t, $tz) = @_;
5018 # Date::Parse isn't in the standard Perl distro :(
5019 if ($tz =~ s/^\+//) {
5020 $t += tz_to_s_offset($tz);
5021 } elsif ($tz =~ s/^\-//) {
5022 $t -= tz_to_s_offset($tz);
5023 }
5024 return $t;
5025 }
5026
5027 sub set_local_timezone {
5028 if (defined $TZ) {
5029 $ENV{TZ} = $TZ;
5030 } else {
5031 delete $ENV{TZ};
5032 }
5033 }
5034
5035 sub tz_to_s_offset {
5036 my ($tz) = @_;
5037 $tz =~ s/(\d\d)$//;
5038 return ($1 * 60) + ($tz * 3600);
5039 }
5040
5041 sub get_author_info {
5042 my ($dest, $author, $t, $tz) = @_;
5043 $author =~ s/(?:^\s*|\s*$)//g;
5044 $dest->{a_raw} = $author;
5045 my $au;
5046 if ($::_authors) {
5047 $au = $rusers{$author} || undef;
5048 }
5049 if (!$au) {
5050 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
5051 }
5052 $dest->{t} = $t;
5053 $dest->{tz} = $tz;
5054 $dest->{a} = $au;
5055 $dest->{t_utc} = parse_git_date($t, $tz);
5056 }
5057
5058 sub process_commit {
5059 my ($c, $r_min, $r_max, $defer) = @_;
5060 if (defined $r_min && defined $r_max) {
5061 if ($r_min == $c->{r} && $r_min == $r_max) {
5062 show_commit($c);
5063 return 0;
5064 }
5065 return 1 if $r_min == $r_max;
5066 if ($r_min < $r_max) {
5067 # we need to reverse the print order
5068 return 0 if (defined $limit && --$limit < 0);
5069 push @$defer, $c;
5070 return 1;
5071 }
5072 if ($r_min != $r_max) {
5073 return 1 if ($r_min < $c->{r});
5074 return 1 if ($r_max > $c->{r});
5075 }
5076 }
5077 return 0 if (defined $limit && --$limit < 0);
5078 show_commit($c);
5079 return 1;
5080 }
5081
5082 sub show_commit {
5083 my $c = shift;
5084 if ($oneline) {
5085 my $x = "\n";
5086 if (my $l = $c->{l}) {
5087 while ($l->[0] =~ /^\s*$/) { shift @$l }
5088 $x = $l->[0];
5089 }
5090 $l_fmt ||= 'A' . length($c->{r});
5091 print 'r',pack($l_fmt, $c->{r}),' | ';
5092 print "$c->{c} | " if $show_commit;
5093 print $x;
5094 } else {
5095 show_commit_normal($c);
5096 }
5097 }
5098
5099 sub show_commit_changed_paths {
5100 my ($c) = @_;
5101 return unless $c->{changed};
5102 print "Changed paths:\n", @{$c->{changed}};
5103 }
5104
5105 sub show_commit_normal {
5106 my ($c) = @_;
5107 print commit_log_separator, "r$c->{r} | ";
5108 print "$c->{c} | " if $show_commit;
5109 print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
5110 my $nr_line = 0;
5111
5112 if (my $l = $c->{l}) {
5113 while ($l->[$#$l] eq "\n" && $#$l > 0
5114 && $l->[($#$l - 1)] eq "\n") {
5115 pop @$l;
5116 }
5117 $nr_line = scalar @$l;
5118 if (!$nr_line) {
5119 print "1 line\n\n\n";
5120 } else {
5121 if ($nr_line == 1) {
5122 $nr_line = '1 line';
5123 } else {
5124 $nr_line .= ' lines';
5125 }
5126 print $nr_line, "\n";
5127 show_commit_changed_paths($c);
5128 print "\n";
5129 print $_ foreach @$l;
5130 }
5131 } else {
5132 print "1 line\n";
5133 show_commit_changed_paths($c);
5134 print "\n";
5135
5136 }
5137 foreach my $x (qw/raw stat diff/) {
5138 if ($c->{$x}) {
5139 print "\n";
5140 print $_ foreach @{$c->{$x}}
5141 }
5142 }
5143 }
5144
5145 sub cmd_show_log {
5146 my (@args) = @_;
5147 my ($r_min, $r_max);
5148 my $r_last = -1; # prevent dupes
5149 set_local_timezone();
5150 if (defined $::_revision) {
5151 if ($::_revision =~ /^(\d+):(\d+)$/) {
5152 ($r_min, $r_max) = ($1, $2);
5153 } elsif ($::_revision =~ /^\d+$/) {
5154 $r_min = $r_max = $::_revision;
5155 } else {
5156 ::fatal "-r$::_revision is not supported, use ",
5157 "standard 'git log' arguments instead";
5158 }
5159 }
5160
5161 config_pager();
5162 @args = git_svn_log_cmd($r_min, $r_max, @args);
5163 if (!@args) {
5164 print commit_log_separator unless $incremental || $oneline;
5165 return;
5166 }
5167 my $log = command_output_pipe(@args);
5168 run_pager();
5169 my (@k, $c, $d, $stat);
5170 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
5171 while (<$log>) {
5172 if (/^${esc_color}commit -?($::sha1_short)/o) {
5173 my $cmt = $1;
5174 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
5175 $r_last = $c->{r};
5176 process_commit($c, $r_min, $r_max, \@k) or
5177 goto out;
5178 }
5179 $d = undef;
5180 $c = { c => $cmt };
5181 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
5182 get_author_info($c, $1, $2, $3);
5183 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
5184 # ignore
5185 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
5186 push @{$c->{raw}}, $_;
5187 } elsif (/^${esc_color}[ACRMDT]\t/) {
5188 # we could add $SVN->{svn_path} here, but that requires
5189 # remote access at the moment (repo_path_split)...
5190 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
5191 push @{$c->{changed}}, $_;
5192 } elsif (/^${esc_color}diff /o) {
5193 $d = 1;
5194 push @{$c->{diff}}, $_;
5195 } elsif ($d) {
5196 push @{$c->{diff}}, $_;
5197 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
5198 $esc_color*[\+\-]*$esc_color$/x) {
5199 $stat = 1;
5200 push @{$c->{stat}}, $_;
5201 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
5202 push @{$c->{stat}}, $_;
5203 $stat = undef;
5204 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
5205 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
5206 } elsif (s/^${esc_color} //o) {
5207 push @{$c->{l}}, $_;
5208 }
5209 }
5210 if ($c && defined $c->{r} && $c->{r} != $r_last) {
5211 $r_last = $c->{r};
5212 process_commit($c, $r_min, $r_max, \@k);
5213 }
5214 if (@k) {
5215 ($r_min, $r_max) = ($r_max, $r_min);
5216 process_commit($_, $r_min, $r_max) foreach reverse @k;
5217 }
5218 out:
5219 close $log;
5220 print commit_log_separator unless $incremental || $oneline;
5221 }
5222
5223 sub cmd_blame {
5224 my $path = pop;
5225
5226 config_pager();
5227 run_pager();
5228
5229 my ($fh, $ctx, $rev);
5230
5231 if ($_git_format) {
5232 ($fh, $ctx) = command_output_pipe('blame', @_, $path);
5233 while (my $line = <$fh>) {
5234 if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
5235 # Uncommitted edits show up as a rev ID of
5236 # all zeros, which we can't look up with
5237 # cmt_metadata
5238 if ($1 !~ /^0+$/) {
5239 (undef, $rev, undef) =
5240 ::cmt_metadata($1);
5241 $rev = '0' if (!$rev);
5242 } else {
5243 $rev = '0';
5244 }
5245 $rev = sprintf('%-10s', $rev);
5246 $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
5247 }
5248 print $line;
5249 }
5250 } else {
5251 ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
5252 '--', $path);
5253 my ($sha1);
5254 my %authors;
5255 my @buffer;
5256 my %dsha; #distinct sha keys
5257
5258 while (my $line = <$fh>) {
5259 push @buffer, $line;
5260 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
5261 $dsha{$1} = 1;
5262 }
5263 }
5264
5265 my $s2r = ::cmt_sha2rev_batch([keys %dsha]);
5266
5267 foreach my $line (@buffer) {
5268 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
5269 $rev = $s2r->{$1};
5270 $rev = '0' if (!$rev)
5271 }
5272 elsif ($line =~ /^author (.*)/) {
5273 $authors{$rev} = $1;
5274 $authors{$rev} =~ s/\s/_/g;
5275 }
5276 elsif ($line =~ /^\t(.*)$/) {
5277 printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
5278 }
5279 }
5280 }
5281 command_close_pipe($fh, $ctx);
5282 }
5283
5284 package Git::SVN::Migration;
5285 # these version numbers do NOT correspond to actual version numbers
5286 # of git nor git-svn. They are just relative.
5287 #
5288 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
5289 #
5290 # v1 layout: .git/$id/info/url, refs/remotes/$id
5291 #
5292 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
5293 #
5294 # v3 layout: .git/svn/$id, refs/remotes/$id
5295 # - info/url may remain for backwards compatibility
5296 # - this is what we migrate up to this layout automatically,
5297 # - this will be used by git svn init on single branches
5298 # v3.1 layout (auto migrated):
5299 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
5300 # for backwards compatibility
5301 #
5302 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
5303 # - this is only created for newly multi-init-ed
5304 # repositories. Similar in spirit to the
5305 # --use-separate-remotes option in git-clone (now default)
5306 # - we do not automatically migrate to this (following
5307 # the example set by core git)
5308 #
5309 # v5 layout: .rev_db.$UUID => .rev_map.$UUID
5310 # - newer, more-efficient format that uses 24-bytes per record
5311 # with no filler space.
5312 # - use xxd -c24 < .rev_map.$UUID to view and debug
5313 # - This is a one-way migration, repositories updated to the
5314 # new format will not be able to use old git-svn without
5315 # rebuilding the .rev_db. Rebuilding the rev_db is not
5316 # possible if noMetadata or useSvmProps are set; but should
5317 # be no problem for users that use the (sensible) defaults.
5318 use strict;
5319 use warnings;
5320 use Carp qw/croak/;
5321 use File::Path qw/mkpath/;
5322 use File::Basename qw/dirname basename/;
5323 use vars qw/$_minimize/;
5324
5325 sub migrate_from_v0 {
5326 my $git_dir = $ENV{GIT_DIR};
5327 return undef unless -d $git_dir;
5328 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5329 my $migrated = 0;
5330 while (<$fh>) {
5331 chomp;
5332 my ($id, $orig_ref) = ($_, $_);
5333 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
5334 next unless -f "$git_dir/$id/info/url";
5335 my $new_ref = "refs/remotes/$id";
5336 if (::verify_ref("$new_ref^0")) {
5337 print STDERR "W: $orig_ref is probably an old ",
5338 "branch used by an ancient version of ",
5339 "git-svn.\n",
5340 "However, $new_ref also exists.\n",
5341 "We will not be able ",
5342 "to use this branch until this ",
5343 "ambiguity is resolved.\n";
5344 next;
5345 }
5346 print STDERR "Migrating from v0 layout...\n" if !$migrated;
5347 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
5348 command_noisy('update-ref', $new_ref, $orig_ref);
5349 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
5350 $migrated++;
5351 }
5352 command_close_pipe($fh, $ctx);
5353 print STDERR "Done migrating from v0 layout...\n" if $migrated;
5354 $migrated;
5355 }
5356
5357 sub migrate_from_v1 {
5358 my $git_dir = $ENV{GIT_DIR};
5359 my $migrated = 0;
5360 return $migrated unless -d $git_dir;
5361 my $svn_dir = "$git_dir/svn";
5362
5363 # just in case somebody used 'svn' as their $id at some point...
5364 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
5365
5366 print STDERR "Migrating from a git-svn v1 layout...\n";
5367 mkpath([$svn_dir]);
5368 print STDERR "Data from a previous version of git-svn exists, but\n\t",
5369 "$svn_dir\n\t(required for this version ",
5370 "($::VERSION) of git-svn) does not exist.\n";
5371 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5372 while (<$fh>) {
5373 my $x = $_;
5374 next unless $x =~ s#^refs/remotes/##;
5375 chomp $x;
5376 next unless -f "$git_dir/$x/info/url";
5377 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
5378 next unless $u;
5379 my $dn = dirname("$git_dir/svn/$x");
5380 mkpath([$dn]) unless -d $dn;
5381 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
5382 mkpath(["$git_dir/svn/svn"]);
5383 print STDERR " - $git_dir/$x/info => ",
5384 "$git_dir/svn/$x/info\n";
5385 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
5386 croak "$!: $x";
5387 # don't worry too much about these, they probably
5388 # don't exist with repos this old (save for index,
5389 # and we can easily regenerate that)
5390 foreach my $f (qw/unhandled.log index .rev_db/) {
5391 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
5392 }
5393 } else {
5394 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
5395 rename "$git_dir/$x", "$git_dir/svn/$x" or
5396 croak "$!: $x";
5397 }
5398 $migrated++;
5399 }
5400 command_close_pipe($fh, $ctx);
5401 print STDERR "Done migrating from a git-svn v1 layout\n";
5402 $migrated;
5403 }
5404
5405 sub read_old_urls {
5406 my ($l_map, $pfx, $path) = @_;
5407 my @dir;
5408 foreach (<$path/*>) {
5409 if (-r "$_/info/url") {
5410 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
5411 my $ref_id = $pfx . basename $_;
5412 my $url = ::file_to_s("$_/info/url");
5413 $l_map->{$ref_id} = $url;
5414 } elsif (-d $_) {
5415 push @dir, $_;
5416 }
5417 }
5418 foreach (@dir) {
5419 my $x = $_;
5420 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
5421 read_old_urls($l_map, $x, $_);
5422 }
5423 }
5424
5425 sub migrate_from_v2 {
5426 my @cfg = command(qw/config -l/);
5427 return if grep /^svn-remote\..+\.url=/, @cfg;
5428 my %l_map;
5429 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
5430 my $migrated = 0;
5431
5432 foreach my $ref_id (sort keys %l_map) {
5433 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
5434 if ($@) {
5435 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
5436 }
5437 $migrated++;
5438 }
5439 $migrated;
5440 }
5441
5442 sub minimize_connections {
5443 my $r = Git::SVN::read_all_remotes();
5444 my $new_urls = {};
5445 my $root_repos = {};
5446 foreach my $repo_id (keys %$r) {
5447 my $url = $r->{$repo_id}->{url} or next;
5448 my $fetch = $r->{$repo_id}->{fetch} or next;
5449 my $ra = Git::SVN::Ra->new($url);
5450
5451 # skip existing cases where we already connect to the root
5452 if (($ra->{url} eq $ra->{repos_root}) ||
5453 ($ra->{repos_root} eq $repo_id)) {
5454 $root_repos->{$ra->{url}} = $repo_id;
5455 next;
5456 }
5457
5458 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
5459 my $root_path = $ra->{url};
5460 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
5461 foreach my $path (keys %$fetch) {
5462 my $ref_id = $fetch->{$path};
5463 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
5464
5465 # make sure we can read when connecting to
5466 # a higher level of a repository
5467 my ($last_rev, undef) = $gs->last_rev_commit;
5468 if (!defined $last_rev) {
5469 $last_rev = eval {
5470 $root_ra->get_latest_revnum;
5471 };
5472 next if $@;
5473 }
5474 my $new = $root_path;
5475 $new .= length $path ? "/$path" : '';
5476 eval {
5477 $root_ra->get_log([$new], $last_rev, $last_rev,
5478 0, 0, 1, sub { });
5479 };
5480 next if $@;
5481 $new_urls->{$ra->{repos_root}}->{$new} =
5482 { ref_id => $ref_id,
5483 old_repo_id => $repo_id,
5484 old_path => $path };
5485 }
5486 }
5487
5488 my @emptied;
5489 foreach my $url (keys %$new_urls) {
5490 # see if we can re-use an existing [svn-remote "repo_id"]
5491 # instead of creating a(n ugly) new section:
5492 my $repo_id = $root_repos->{$url} || $url;
5493
5494 my $fetch = $new_urls->{$url};
5495 foreach my $path (keys %$fetch) {
5496 my $x = $fetch->{$path};
5497 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
5498 my $pfx = "svn-remote.$x->{old_repo_id}";
5499
5500 my $old_fetch = quotemeta("$x->{old_path}:".
5501 "refs/remotes/$x->{ref_id}");
5502 command_noisy(qw/config --unset/,
5503 "$pfx.fetch", '^'. $old_fetch . '$');
5504 delete $r->{$x->{old_repo_id}}->
5505 {fetch}->{$x->{old_path}};
5506 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
5507 command_noisy(qw/config --unset/,
5508 "$pfx.url");
5509 push @emptied, $x->{old_repo_id}
5510 }
5511 }
5512 }
5513 if (@emptied) {
5514 my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config";
5515 print STDERR <<EOF;
5516 The following [svn-remote] sections in your config file ($file) are empty
5517 and can be safely removed:
5518 EOF
5519 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
5520 }
5521 }
5522
5523 sub migration_check {
5524 migrate_from_v0();
5525 migrate_from_v1();
5526 migrate_from_v2();
5527 minimize_connections() if $_minimize;
5528 }
5529
5530 package Git::IndexInfo;
5531 use strict;
5532 use warnings;
5533 use Git qw/command_input_pipe command_close_pipe/;
5534
5535 sub new {
5536 my ($class) = @_;
5537 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
5538 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
5539 }
5540
5541 sub remove {
5542 my ($self, $path) = @_;
5543 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
5544 return ++$self->{nr};
5545 }
5546 undef;
5547 }
5548
5549 sub update {
5550 my ($self, $mode, $hash, $path) = @_;
5551 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
5552 return ++$self->{nr};
5553 }
5554 undef;
5555 }
5556
5557 sub DESTROY {
5558 my ($self) = @_;
5559 command_close_pipe($self->{gui}, $self->{ctx});
5560 }
5561
5562 package Git::SVN::GlobSpec;
5563 use strict;
5564 use warnings;
5565
5566 sub new {
5567 my ($class, $glob) = @_;
5568 my $re = $glob;
5569 $re =~ s!/+$!!g; # no need for trailing slashes
5570 $re =~ m!^([^*]*)(\*(?:/\*)*)([^*]*)$!;
5571 my $temp = $re;
5572 my ($left, $right) = ($1, $3);
5573 $re = $2;
5574 my $depth = $re =~ tr/*/*/;
5575 if ($depth != $temp =~ tr/*/*/) {
5576 die "Only one set of wildcard directories " .
5577 "(e.g. '*' or '*/*/*') is supported: '$glob'\n";
5578 }
5579 if ($depth == 0) {
5580 die "One '*' is needed for glob: '$glob'\n";
5581 }
5582 $re =~ s!\*!\[^/\]*!g;
5583 $re = quotemeta($left) . "($re)" . quotemeta($right);
5584 if (length $left && !($left =~ s!/+$!!g)) {
5585 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
5586 }
5587 if (length $right && !($right =~ s!^/+!!g)) {
5588 die "Missing leading '/' on right side of: '$glob' ($right)\n";
5589 }
5590 my $left_re = qr/^\/\Q$left\E(\/|$)/;
5591 bless { left => $left, right => $right, left_regex => $left_re,
5592 regex => qr/$re/, glob => $glob, depth => $depth }, $class;
5593 }
5594
5595 sub full_path {
5596 my ($self, $path) = @_;
5597 return (length $self->{left} ? "$self->{left}/" : '') .
5598 $path . (length $self->{right} ? "/$self->{right}" : '');
5599 }
5600
5601 __END__
5602
5603 Data structures:
5604
5605
5606 $remotes = { # returned by read_all_remotes()
5607 'svn' => {
5608 # svn-remote.svn.url=https://svn.musicpd.org
5609 url => 'https://svn.musicpd.org',
5610 # svn-remote.svn.fetch=mpd/trunk:trunk
5611 fetch => {
5612 'mpd/trunk' => 'trunk',
5613 },
5614 # svn-remote.svn.tags=mpd/tags/*:tags/*
5615 tags => {
5616 path => {
5617 left => 'mpd/tags',
5618 right => '',
5619 regex => qr!mpd/tags/([^/]+)$!,
5620 glob => 'tags/*',
5621 },
5622 ref => {
5623 left => 'tags',
5624 right => '',
5625 regex => qr!tags/([^/]+)$!,
5626 glob => 'tags/*',
5627 },
5628 }
5629 }
5630 };
5631
5632 $log_entry hashref as returned by libsvn_log_entry()
5633 {
5634 log => 'whitespace-formatted log entry
5635 ', # trailing newline is preserved
5636 revision => '8', # integer
5637 date => '2004-02-24T17:01:44.108345Z', # commit date
5638 author => 'committer name'
5639 };
5640
5641
5642 # this is generated by generate_diff();
5643 @mods = array of diff-index line hashes, each element represents one line
5644 of diff-index output
5645
5646 diff-index line ($m hash)
5647 {
5648 mode_a => first column of diff-index output, no leading ':',
5649 mode_b => second column of diff-index output,
5650 sha1_b => sha1sum of the final blob,
5651 chg => change type [MCRADT],
5652 file_a => original file name of a file (iff chg is 'C' or 'R')
5653 file_b => new/current file name of a file (any chg)
5654 }
5655 ;
5656
5657 # retval of read_url_paths{,_all}();
5658 $l_map = {
5659 # repository root url
5660 'https://svn.musicpd.org' => {
5661 # repository path # GIT_SVN_ID
5662 'mpd/trunk' => 'trunk',
5663 'mpd/tags/0.11.5' => 'tags/0.11.5',
5664 },
5665 }
5666
5667 Notes:
5668 I don't trust the each() function on unless I created %hash myself
5669 because the internal iterator may not have started at base.
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