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Documentation: tweak use case in "git stash save --keep-index"
[tgit.git] / git-svn.perl
blobf789a6eeca12ed34e6ef3746c3062e56f791d7e9
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 %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
23 $Git::SVN::Log::TZ = $ENV{TZ};
24 $ENV{TZ} = 'UTC';
25 $| = 1; # unbuffer STDOUT
26
27 sub fatal (@) { print STDERR "@_\n"; exit 1 }
28 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
29 require SVN::Ra;
30 require SVN::Delta;
31 if ($SVN::Core::VERSION lt '1.1.0') {
32 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
33 }
34 push @Git::SVN::Ra::ISA, 'SVN::Ra';
35 push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
36 push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
37 use Carp qw/croak/;
38 use Digest::MD5;
39 use IO::File qw//;
40 use File::Basename qw/dirname basename/;
41 use File::Path qw/mkpath/;
42 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
43 use IPC::Open3;
44 use Git;
45
46 BEGIN {
47 # import functions from Git into our packages, en masse
48 no strict 'refs';
49 foreach (qw/command command_oneline command_noisy command_output_pipe
50 command_input_pipe command_close_pipe/) {
51 for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher
52 Git::SVN::Migration Git::SVN::Log Git::SVN),
53 __PACKAGE__) {
54 *{"${package}::$_"} = \&{"Git::$_"};
55 }
56 }
57 }
58
59 my ($SVN);
60
61 $sha1 = qr/[a-f\d]{40}/;
62 $sha1_short = qr/[a-f\d]{4,40}/;
63 my ($_stdin, $_help, $_edit,
64 $_message, $_file,
65 $_template, $_shared,
66 $_version, $_fetch_all, $_no_rebase,
67 $_merge, $_strategy, $_dry_run, $_local,
68 $_prefix, $_no_checkout, $_url, $_verbose,
69 $_git_format);
70 $Git::SVN::_follow_parent = 1;
71 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
72 'config-dir=s' => \$Git::SVN::Ra::config_dir,
73 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache );
74 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
75 'authors-file|A=s' => \$_authors,
76 'repack:i' => \$Git::SVN::_repack,
77 'noMetadata' => \$Git::SVN::_no_metadata,
78 'useSvmProps' => \$Git::SVN::_use_svm_props,
79 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
80 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
81 'no-checkout' => \$_no_checkout,
82 'quiet|q' => \$_q,
83 'repack-flags|repack-args|repack-opts=s' =>
84 \$Git::SVN::_repack_flags,
85 'use-log-author' => \$Git::SVN::_use_log_author,
86 'add-author-from' => \$Git::SVN::_add_author_from,
87 %remote_opts );
88
89 my ($_trunk, $_tags, $_branches, $_stdlayout);
90 my %icv;
91 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
92 'trunk|T=s' => \$_trunk, 'tags|t=s' => \$_tags,
93 'branches|b=s' => \$_branches, 'prefix=s' => \$_prefix,
94 'stdlayout|s' => \$_stdlayout,
95 'minimize-url|m' => \$Git::SVN::_minimize_url,
96 'no-metadata' => sub { $icv{noMetadata} = 1 },
97 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
98 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
99 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
100 %remote_opts );
101 my %cmt_opts = ( 'edit|e' => \$_edit,
102 'rmdir' => \$SVN::Git::Editor::_rmdir,
103 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
104 'l=i' => \$SVN::Git::Editor::_rename_limit,
105 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
106 );
107
108 my %cmd = (
109 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
110 { 'revision|r=s' => \$_revision,
111 'fetch-all|all' => \$_fetch_all,
112 %fc_opts } ],
113 clone => [ \&cmd_clone, "Initialize and fetch revisions",
114 { 'revision|r=s' => \$_revision,
115 %fc_opts, %init_opts } ],
116 init => [ \&cmd_init, "Initialize a repo for tracking" .
117 " (requires URL argument)",
118 \%init_opts ],
119 'multi-init' => [ \&cmd_multi_init,
120 "Deprecated alias for ".
121 "'$0 init -T<trunk> -b<branches> -t<tags>'",
122 \%init_opts ],
123 dcommit => [ \&cmd_dcommit,
124 'Commit several diffs to merge with upstream',
125 { 'merge|m|M' => \$_merge,
126 'strategy|s=s' => \$_strategy,
127 'verbose|v' => \$_verbose,
128 'dry-run|n' => \$_dry_run,
129 'fetch-all|all' => \$_fetch_all,
130 'no-rebase' => \$_no_rebase,
131 %cmt_opts, %fc_opts } ],
132 'set-tree' => [ \&cmd_set_tree,
133 "Set an SVN repository to a git tree-ish",
134 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
135 'create-ignore' => [ \&cmd_create_ignore,
136 'Create a .gitignore per svn:ignore',
137 { 'revision|r=i' => \$_revision
138 } ],
139 'propget' => [ \&cmd_propget,
140 'Print the value of a property on a file or directory',
141 { 'revision|r=i' => \$_revision } ],
142 'proplist' => [ \&cmd_proplist,
143 'List all properties of a file or directory',
144 { 'revision|r=i' => \$_revision } ],
145 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
146 { 'revision|r=i' => \$_revision
147 } ],
148 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
149 { 'revision|r=i' => \$_revision
150 } ],
151 'multi-fetch' => [ \&cmd_multi_fetch,
152 "Deprecated alias for $0 fetch --all",
153 { 'revision|r=s' => \$_revision, %fc_opts } ],
154 'migrate' => [ sub { },
155 # no-op, we automatically run this anyways,
156 'Migrate configuration/metadata/layout from
157 previous versions of git-svn',
158 { 'minimize' => \$Git::SVN::Migration::_minimize,
159 %remote_opts } ],
160 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
161 { 'limit=i' => \$Git::SVN::Log::limit,
162 'revision|r=s' => \$_revision,
163 'verbose|v' => \$Git::SVN::Log::verbose,
164 'incremental' => \$Git::SVN::Log::incremental,
165 'oneline' => \$Git::SVN::Log::oneline,
166 'show-commit' => \$Git::SVN::Log::show_commit,
167 'non-recursive' => \$Git::SVN::Log::non_recursive,
168 'authors-file|A=s' => \$_authors,
169 'color' => \$Git::SVN::Log::color,
170 'pager=s' => \$Git::SVN::Log::pager
171 } ],
172 'find-rev' => [ \&cmd_find_rev, "Translate between SVN revision numbers and tree-ish",
173 {} ],
174 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
175 { 'merge|m|M' => \$_merge,
176 'verbose|v' => \$_verbose,
177 'strategy|s=s' => \$_strategy,
178 'local|l' => \$_local,
179 'fetch-all|all' => \$_fetch_all,
180 'dry-run|n' => \$_dry_run,
181 %fc_opts } ],
182 'commit-diff' => [ \&cmd_commit_diff,
183 'Commit a diff between two trees',
184 { 'message|m=s' => \$_message,
185 'file|F=s' => \$_file,
186 'revision|r=s' => \$_revision,
187 %cmt_opts } ],
188 'info' => [ \&cmd_info,
189 "Show info about the latest SVN revision
190 on the current branch",
191 { 'url' => \$_url, } ],
192 'blame' => [ \&Git::SVN::Log::cmd_blame,
193 "Show what revision and author last modified each line of a file",
194 { 'git-format' => \$_git_format } ],
195 );
196
197 my $cmd;
198 for (my $i = 0; $i < @ARGV; $i++) {
199 if (defined $cmd{$ARGV[$i]}) {
200 $cmd = $ARGV[$i];
201 splice @ARGV, $i, 1;
202 last;
203 }
204 };
205
206 # make sure we're always running at the top-level working directory
207 unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
208 unless (-d $ENV{GIT_DIR}) {
209 if ($git_dir_user_set) {
210 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
211 "but it is not a directory\n";
212 }
213 my $git_dir = delete $ENV{GIT_DIR};
214 chomp(my $cdup = command_oneline(qw/rev-parse --show-cdup/));
215 unless (length $cdup) {
216 die "Already at toplevel, but $git_dir ",
217 "not found '$cdup'\n";
218 }
219 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
220 unless (-d $git_dir) {
221 die "$git_dir still not found after going to ",
222 "'$cdup'\n";
223 }
224 $ENV{GIT_DIR} = $git_dir;
225 }
226 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
227 }
228
229 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
230
231 read_repo_config(\%opts);
232 Getopt::Long::Configure('pass_through') if ($cmd && ($cmd eq 'log' || $cmd eq 'blame'));
233 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
234 'minimize-connections' => \$Git::SVN::Migration::_minimize,
235 'id|i=s' => \$Git::SVN::default_ref_id,
236 'svn-remote|remote|R=s' => sub {
237 $Git::SVN::no_reuse_existing = 1;
238 $Git::SVN::default_repo_id = $_[1] });
239 exit 1 if (!$rv && $cmd && $cmd ne 'log');
240
241 usage(0) if $_help;
242 version() if $_version;
243 usage(1) unless defined $cmd;
244 load_authors() if $_authors;
245
246 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
247 Git::SVN::Migration::migration_check();
248 }
249 Git::SVN::init_vars();
250 eval {
251 Git::SVN::verify_remotes_sanity();
252 $cmd{$cmd}->[0]->(@ARGV);
253 };
254 fatal $@ if $@;
255 post_fetch_checkout();
256 exit 0;
257
258 ####################### primary functions ######################
259 sub usage {
260 my $exit = shift || 0;
261 my $fd = $exit ? \*STDERR : \*STDOUT;
262 print $fd <<"";
263 git-svn - bidirectional operations between a single Subversion tree and git
264 Usage: $0 <command> [options] [arguments]\n
265
266 print $fd "Available commands:\n" unless $cmd;
267
268 foreach (sort keys %cmd) {
269 next if $cmd && $cmd ne $_;
270 next if /^multi-/; # don't show deprecated commands
271 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
272 foreach (sort keys %{$cmd{$_}->[2]}) {
273 # mixed-case options are for .git/config only
274 next if /[A-Z]/ && /^[a-z]+$/i;
275 # prints out arguments as they should be passed:
276 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
277 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
278 "--$_" : "-$_" }
279 split /\|/,$_)," $x\n";
280 }
281 }
282 print $fd <<"";
283 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
284 arbitrary identifier if you're tracking multiple SVN branches/repositories in
285 one git repository and want to keep them separate. See git-svn(1) for more
286 information.
287
288 exit $exit;
289 }
290
291 sub version {
292 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
293 exit 0;
294 }
295
296 sub do_git_init_db {
297 unless (-d $ENV{GIT_DIR}) {
298 my @init_db = ('init');
299 push @init_db, "--template=$_template" if defined $_template;
300 if (defined $_shared) {
301 if ($_shared =~ /[a-z]/) {
302 push @init_db, "--shared=$_shared";
303 } else {
304 push @init_db, "--shared";
305 }
306 }
307 command_noisy(@init_db);
308 $_repository = Git->repository(Repository => ".git");
309 }
310 my $set;
311 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
312 foreach my $i (keys %icv) {
313 die "'$set' and '$i' cannot both be set\n" if $set;
314 next unless defined $icv{$i};
315 command_noisy('config', "$pfx.$i", $icv{$i});
316 $set = $i;
317 }
318 }
319
320 sub init_subdir {
321 my $repo_path = shift or return;
322 mkpath([$repo_path]) unless -d $repo_path;
323 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
324 $ENV{GIT_DIR} = '.git';
325 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
326 }
327
328 sub cmd_clone {
329 my ($url, $path) = @_;
330 if (!defined $path &&
331 (defined $_trunk || defined $_branches || defined $_tags ||
332 defined $_stdlayout) &&
333 $url !~ m#^[a-z\+]+://#) {
334 $path = $url;
335 }
336 $path = basename($url) if !defined $path || !length $path;
337 cmd_init($url, $path);
338 Git::SVN::fetch_all($Git::SVN::default_repo_id);
339 }
340
341 sub cmd_init {
342 if (defined $_stdlayout) {
343 $_trunk = 'trunk' if (!defined $_trunk);
344 $_tags = 'tags' if (!defined $_tags);
345 $_branches = 'branches' if (!defined $_branches);
346 }
347 if (defined $_trunk || defined $_branches || defined $_tags) {
348 return cmd_multi_init(@_);
349 }
350 my $url = shift or die "SVN repository location required ",
351 "as a command-line argument\n";
352 init_subdir(@_);
353 do_git_init_db();
354
355 Git::SVN->init($url);
356 }
357
358 sub cmd_fetch {
359 if (grep /^\d+=./, @_) {
360 die "'<rev>=<commit>' fetch arguments are ",
361 "no longer supported.\n";
362 }
363 my ($remote) = @_;
364 if (@_ > 1) {
365 die "Usage: $0 fetch [--all] [svn-remote]\n";
366 }
367 $remote ||= $Git::SVN::default_repo_id;
368 if ($_fetch_all) {
369 cmd_multi_fetch();
370 } else {
371 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
372 }
373 }
374
375 sub cmd_set_tree {
376 my (@commits) = @_;
377 if ($_stdin || !@commits) {
378 print "Reading from stdin...\n";
379 @commits = ();
380 while (<STDIN>) {
381 if (/\b($sha1_short)\b/o) {
382 unshift @commits, $1;
383 }
384 }
385 }
386 my @revs;
387 foreach my $c (@commits) {
388 my @tmp = command('rev-parse',$c);
389 if (scalar @tmp == 1) {
390 push @revs, $tmp[0];
391 } elsif (scalar @tmp > 1) {
392 push @revs, reverse(command('rev-list',@tmp));
393 } else {
394 fatal "Failed to rev-parse $c";
395 }
396 }
397 my $gs = Git::SVN->new;
398 my ($r_last, $cmt_last) = $gs->last_rev_commit;
399 $gs->fetch;
400 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
401 fatal "There are new revisions that were fetched ",
402 "and need to be merged (or acknowledged) ",
403 "before committing.\nlast rev: $r_last\n",
404 " current: $gs->{last_rev}";
405 }
406 $gs->set_tree($_) foreach @revs;
407 print "Done committing ",scalar @revs," revisions to SVN\n";
408 unlink $gs->{index};
409 }
410
411 sub cmd_dcommit {
412 my $head = shift;
413 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) }
414 'Cannot dcommit with a dirty index. Commit your changes first, '
415 . "or stash them with `git stash'.\n";
416 $head ||= 'HEAD';
417 my @refs;
418 my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
419 if ($url) {
420 print "Committing to $url ...\n";
421 }
422 unless ($gs) {
423 die "Unable to determine upstream SVN information from ",
424 "$head history.\nPerhaps the repository is empty.";
425 }
426 my $last_rev;
427 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
428 if ($_no_rebase && scalar(@$linear_refs) > 1) {
429 warn "Attempting to commit more than one change while ",
430 "--no-rebase is enabled.\n",
431 "If these changes depend on each other, re-running ",
432 "without --no-rebase may be required."
433 }
434 while (1) {
435 my $d = shift @$linear_refs or last;
436 unless (defined $last_rev) {
437 (undef, $last_rev, undef) = cmt_metadata("$d~1");
438 unless (defined $last_rev) {
439 fatal "Unable to extract revision information ",
440 "from commit $d~1";
441 }
442 }
443 if ($_dry_run) {
444 print "diff-tree $d~1 $d\n";
445 } else {
446 my $cmt_rev;
447 my %ed_opts = ( r => $last_rev,
448 log => get_commit_entry($d)->{log},
449 ra => Git::SVN::Ra->new($gs->full_url),
450 config => SVN::Core::config_get_config(
451 $Git::SVN::Ra::config_dir
452 ),
453 tree_a => "$d~1",
454 tree_b => $d,
455 editor_cb => sub {
456 print "Committed r$_[0]\n";
457 $cmt_rev = $_[0];
458 },
459 svn_path => '');
460 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
461 print "No changes\n$d~1 == $d\n";
462 } elsif ($parents->{$d} && @{$parents->{$d}}) {
463 $gs->{inject_parents_dcommit}->{$cmt_rev} =
464 $parents->{$d};
465 }
466 $_fetch_all ? $gs->fetch_all : $gs->fetch;
467 $last_rev = $cmt_rev;
468 next if $_no_rebase;
469
470 # we always want to rebase against the current HEAD,
471 # not any head that was passed to us
472 my @diff = command('diff-tree', $d,
473 $gs->refname, '--');
474 my @finish;
475 if (@diff) {
476 @finish = rebase_cmd();
477 print STDERR "W: $d and ", $gs->refname,
478 " differ, using @finish:\n",
479 join("\n", @diff), "\n";
480 } else {
481 print "No changes between current HEAD and ",
482 $gs->refname,
483 "\nResetting to the latest ",
484 $gs->refname, "\n";
485 @finish = qw/reset --mixed/;
486 }
487 command_noisy(@finish, $gs->refname);
488 if (@diff) {
489 @refs = ();
490 my ($url_, $rev_, $uuid_, $gs_) =
491 working_head_info($head, \@refs);
492 my ($linear_refs_, $parents_) =
493 linearize_history($gs_, \@refs);
494 if (scalar(@$linear_refs) !=
495 scalar(@$linear_refs_)) {
496 fatal "# of revisions changed ",
497 "\nbefore:\n",
498 join("\n", @$linear_refs),
499 "\n\nafter:\n",
500 join("\n", @$linear_refs_), "\n",
501 'If you are attempting to commit ',
502 "merges, try running:\n\t",
503 'git rebase --interactive',
504 '--preserve-merges ',
505 $gs->refname,
506 "\nBefore dcommitting";
507 }
508 if ($url_ ne $url) {
509 fatal "URL mismatch after rebase: ",
510 "$url_ != $url";
511 }
512 if ($uuid_ ne $uuid) {
513 fatal "uuid mismatch after rebase: ",
514 "$uuid_ != $uuid";
515 }
516 # remap parents
517 my (%p, @l, $i);
518 for ($i = 0; $i < scalar @$linear_refs; $i++) {
519 my $new = $linear_refs_->[$i] or next;
520 $p{$new} =
521 $parents->{$linear_refs->[$i]};
522 push @l, $new;
523 }
524 $parents = \%p;
525 $linear_refs = \@l;
526 }
527 }
528 }
529 unlink $gs->{index};
530 }
531
532 sub cmd_find_rev {
533 my $revision_or_hash = shift or die "SVN or git revision required ",
534 "as a command-line argument\n";
535 my $result;
536 if ($revision_or_hash =~ /^r\d+$/) {
537 my $head = shift;
538 $head ||= 'HEAD';
539 my @refs;
540 my (undef, undef, undef, $gs) = working_head_info($head, \@refs);
541 unless ($gs) {
542 die "Unable to determine upstream SVN information from ",
543 "$head history\n";
544 }
545 my $desired_revision = substr($revision_or_hash, 1);
546 $result = $gs->rev_map_get($desired_revision);
547 } else {
548 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
549 $result = $rev;
550 }
551 print "$result\n" if $result;
552 }
553
554 sub cmd_rebase {
555 command_noisy(qw/update-index --refresh/);
556 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
557 unless ($gs) {
558 die "Unable to determine upstream SVN information from ",
559 "working tree history\n";
560 }
561 if ($_dry_run) {
562 print "Remote Branch: " . $gs->refname . "\n";
563 print "SVN URL: " . $url . "\n";
564 return;
565 }
566 if (command(qw/diff-index HEAD --/)) {
567 print STDERR "Cannot rebase with uncommited changes:\n";
568 command_noisy('status');
569 exit 1;
570 }
571 unless ($_local) {
572 # rebase will checkout for us, so no need to do it explicitly
573 $_no_checkout = 'true';
574 $_fetch_all ? $gs->fetch_all : $gs->fetch;
575 }
576 command_noisy(rebase_cmd(), $gs->refname);
577 }
578
579 sub cmd_show_ignore {
580 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
581 $gs ||= Git::SVN->new;
582 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
583 $gs->prop_walk($gs->{path}, $r, sub {
584 my ($gs, $path, $props) = @_;
585 print STDOUT "\n# $path\n";
586 my $s = $props->{'svn:ignore'} or return;
587 $s =~ s/[\r\n]+/\n/g;
588 chomp $s;
589 $s =~ s#^#$path#gm;
590 print STDOUT "$s\n";
591 });
592 }
593
594 sub cmd_show_externals {
595 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
596 $gs ||= Git::SVN->new;
597 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
598 $gs->prop_walk($gs->{path}, $r, sub {
599 my ($gs, $path, $props) = @_;
600 print STDOUT "\n# $path\n";
601 my $s = $props->{'svn:externals'} or return;
602 $s =~ s/[\r\n]+/\n/g;
603 chomp $s;
604 $s =~ s#^#$path#gm;
605 print STDOUT "$s\n";
606 });
607 }
608
609 sub cmd_create_ignore {
610 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
611 $gs ||= Git::SVN->new;
612 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
613 $gs->prop_walk($gs->{path}, $r, sub {
614 my ($gs, $path, $props) = @_;
615 # $path is of the form /path/to/dir/
616 my $ignore = '.' . $path . '.gitignore';
617 my $s = $props->{'svn:ignore'} or return;
618 open(GITIGNORE, '>', $ignore)
619 or fatal("Failed to open `$ignore' for writing: $!");
620 $s =~ s/[\r\n]+/\n/g;
621 chomp $s;
622 # Prefix all patterns so that the ignore doesn't apply
623 # to sub-directories.
624 $s =~ s#^#/#gm;
625 print GITIGNORE "$s\n";
626 close(GITIGNORE)
627 or fatal("Failed to close `$ignore': $!");
628 command_noisy('add', '-f', $ignore);
629 });
630 }
631
632 sub canonicalize_path {
633 my ($path) = @_;
634 my $dot_slash_added = 0;
635 if (substr($path, 0, 1) ne "/") {
636 $path = "./" . $path;
637 $dot_slash_added = 1;
638 }
639 # File::Spec->canonpath doesn't collapse x/../y into y (for a
640 # good reason), so let's do this manually.
641 $path =~ s#/+#/#g;
642 $path =~ s#/\.(?:/|$)#/#g;
643 $path =~ s#/[^/]+/\.\.##g;
644 $path =~ s#/$##g;
645 $path =~ s#^\./## if $dot_slash_added;
646 return $path;
647 }
648
649 # get_svnprops(PATH)
650 # ------------------
651 # Helper for cmd_propget and cmd_proplist below.
652 sub get_svnprops {
653 my $path = shift;
654 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
655 $gs ||= Git::SVN->new;
656
657 # prefix THE PATH by the sub-directory from which the user
658 # invoked us.
659 $path = $cmd_dir_prefix . $path;
660 fatal("No such file or directory: $path") unless -e $path;
661 my $is_dir = -d $path ? 1 : 0;
662 $path = $gs->{path} . '/' . $path;
663
664 # canonicalize the path (otherwise libsvn will abort or fail to
665 # find the file)
666 $path = canonicalize_path($path);
667
668 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
669 my $props;
670 if ($is_dir) {
671 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
672 }
673 else {
674 (undef, $props) = $gs->ra->get_file($path, $r, undef);
675 }
676 return $props;
677 }
678
679 # cmd_propget (PROP, PATH)
680 # ------------------------
681 # Print the SVN property PROP for PATH.
682 sub cmd_propget {
683 my ($prop, $path) = @_;
684 $path = '.' if not defined $path;
685 usage(1) if not defined $prop;
686 my $props = get_svnprops($path);
687 if (not defined $props->{$prop}) {
688 fatal("`$path' does not have a `$prop' SVN property.");
689 }
690 print $props->{$prop} . "\n";
691 }
692
693 # cmd_proplist (PATH)
694 # -------------------
695 # Print the list of SVN properties for PATH.
696 sub cmd_proplist {
697 my $path = shift;
698 $path = '.' if not defined $path;
699 my $props = get_svnprops($path);
700 print "Properties on '$path':\n";
701 foreach (sort keys %{$props}) {
702 print " $_\n";
703 }
704 }
705
706 sub cmd_multi_init {
707 my $url = shift;
708 unless (defined $_trunk || defined $_branches || defined $_tags) {
709 usage(1);
710 }
711
712 # there are currently some bugs that prevent multi-init/multi-fetch
713 # setups from working well without this.
714 $Git::SVN::_minimize_url = 1;
715
716 $_prefix = '' unless defined $_prefix;
717 if (defined $url) {
718 $url =~ s#/+$##;
719 init_subdir(@_);
720 }
721 do_git_init_db();
722 if (defined $_trunk) {
723 my $trunk_ref = $_prefix . 'trunk';
724 # try both old-style and new-style lookups:
725 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
726 unless ($gs_trunk) {
727 my ($trunk_url, $trunk_path) =
728 complete_svn_url($url, $_trunk);
729 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
730 undef, $trunk_ref);
731 }
732 }
733 return unless defined $_branches || defined $_tags;
734 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
735 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
736 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
737 }
738
739 sub cmd_multi_fetch {
740 my $remotes = Git::SVN::read_all_remotes();
741 foreach my $repo_id (sort keys %$remotes) {
742 if ($remotes->{$repo_id}->{url}) {
743 Git::SVN::fetch_all($repo_id, $remotes);
744 }
745 }
746 }
747
748 # this command is special because it requires no metadata
749 sub cmd_commit_diff {
750 my ($ta, $tb, $url) = @_;
751 my $usage = "Usage: $0 commit-diff -r<revision> ".
752 "<tree-ish> <tree-ish> [<URL>]";
753 fatal($usage) if (!defined $ta || !defined $tb);
754 my $svn_path = '';
755 if (!defined $url) {
756 my $gs = eval { Git::SVN->new };
757 if (!$gs) {
758 fatal("Needed URL or usable git-svn --id in ",
759 "the command-line\n", $usage);
760 }
761 $url = $gs->{url};
762 $svn_path = $gs->{path};
763 }
764 unless (defined $_revision) {
765 fatal("-r|--revision is a required argument\n", $usage);
766 }
767 if (defined $_message && defined $_file) {
768 fatal("Both --message/-m and --file/-F specified ",
769 "for the commit message.\n",
770 "I have no idea what you mean");
771 }
772 if (defined $_file) {
773 $_message = file_to_s($_file);
774 } else {
775 $_message ||= get_commit_entry($tb)->{log};
776 }
777 my $ra ||= Git::SVN::Ra->new($url);
778 my $r = $_revision;
779 if ($r eq 'HEAD') {
780 $r = $ra->get_latest_revnum;
781 } elsif ($r !~ /^\d+$/) {
782 die "revision argument: $r not understood by git-svn\n";
783 }
784 my %ed_opts = ( r => $r,
785 log => $_message,
786 ra => $ra,
787 tree_a => $ta,
788 tree_b => $tb,
789 editor_cb => sub { print "Committed r$_[0]\n" },
790 svn_path => $svn_path );
791 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
792 print "No changes\n$ta == $tb\n";
793 }
794 }
795
796 sub cmd_info {
797 my $path = canonicalize_path(shift or ".");
798 unless (scalar(@_) == 0) {
799 die "Too many arguments specified\n";
800 }
801
802 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
803
804 if (!$file_type && !$diff_status) {
805 print STDERR "$path: (Not a versioned resource)\n\n";
806 return;
807 }
808
809 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
810 unless ($gs) {
811 die "Unable to determine upstream SVN information from ",
812 "working tree history\n";
813 }
814 my $full_url = $url . ($path eq "." ? "" : "/$path");
815
816 if ($_url) {
817 print $full_url, "\n";
818 return;
819 }
820
821 my $result = "Path: $path\n";
822 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
823 $result .= "URL: " . $full_url . "\n";
824
825 eval {
826 my $repos_root = $gs->repos_root;
827 Git::SVN::remove_username($repos_root);
828 $result .= "Repository Root: $repos_root\n";
829 };
830 if ($@) {
831 $result .= "Repository Root: (offline)\n";
832 }
833 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A";
834 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
835
836 $result .= "Node Kind: " .
837 ($file_type eq "dir" ? "directory" : "file") . "\n";
838
839 my $schedule = $diff_status eq "A"
840 ? "add"
841 : ($diff_status eq "D" ? "delete" : "normal");
842 $result .= "Schedule: $schedule\n";
843
844 if ($diff_status eq "A") {
845 print $result, "\n";
846 return;
847 }
848
849 my ($lc_author, $lc_rev, $lc_date_utc);
850 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $path);
851 my $log = command_output_pipe(@args);
852 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
853 while (<$log>) {
854 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
855 $lc_author = $1;
856 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
857 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
858 (undef, $lc_rev, undef) = ::extract_metadata($1);
859 }
860 }
861 close $log;
862
863 Git::SVN::Log::set_local_timezone();
864
865 $result .= "Last Changed Author: $lc_author\n";
866 $result .= "Last Changed Rev: $lc_rev\n";
867 $result .= "Last Changed Date: " .
868 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
869
870 if ($file_type ne "dir") {
871 my $text_last_updated_date =
872 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
873 $result .=
874 "Text Last Updated: " .
875 Git::SVN::Log::format_svn_date($text_last_updated_date) .
876 "\n";
877 my $checksum;
878 if ($diff_status eq "D") {
879 my ($fh, $ctx) =
880 command_output_pipe(qw(cat-file blob), "HEAD:$path");
881 if ($file_type eq "link") {
882 my $file_name = <$fh>;
883 $checksum = md5sum("link $file_name");
884 } else {
885 $checksum = md5sum($fh);
886 }
887 command_close_pipe($fh, $ctx);
888 } elsif ($file_type eq "link") {
889 my $file_name =
890 command(qw(cat-file blob), "HEAD:$path");
891 $checksum =
892 md5sum("link " . $file_name);
893 } else {
894 open FILE, "<", $path or die $!;
895 $checksum = md5sum(\*FILE);
896 close FILE or die $!;
897 }
898 $result .= "Checksum: " . $checksum . "\n";
899 }
900
901 print $result, "\n";
902 }
903
904 ########################### utility functions #########################
905
906 sub rebase_cmd {
907 my @cmd = qw/rebase/;
908 push @cmd, '-v' if $_verbose;
909 push @cmd, qw/--merge/ if $_merge;
910 push @cmd, "--strategy=$_strategy" if $_strategy;
911 @cmd;
912 }
913
914 sub post_fetch_checkout {
915 return if $_no_checkout;
916 my $gs = $Git::SVN::_head or return;
917 return if verify_ref('refs/heads/master^0');
918
919 my $valid_head = verify_ref('HEAD^0');
920 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
921 return if ($valid_head || !verify_ref('HEAD^0'));
922
923 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
924 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
925 return if -f $index;
926
927 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
928 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
929 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
930 print STDERR "Checked out HEAD:\n ",
931 $gs->full_url, " r", $gs->last_rev, "\n";
932 }
933
934 sub complete_svn_url {
935 my ($url, $path) = @_;
936 $path =~ s#/+$##;
937 if ($path !~ m#^[a-z\+]+://#) {
938 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
939 fatal("E: '$path' is not a complete URL ",
940 "and a separate URL is not specified");
941 }
942 return ($url, $path);
943 }
944 return ($path, '');
945 }
946
947 sub complete_url_ls_init {
948 my ($ra, $repo_path, $switch, $pfx) = @_;
949 unless ($repo_path) {
950 print STDERR "W: $switch not specified\n";
951 return;
952 }
953 $repo_path =~ s#/+$##;
954 if ($repo_path =~ m#^[a-z\+]+://#) {
955 $ra = Git::SVN::Ra->new($repo_path);
956 $repo_path = '';
957 } else {
958 $repo_path =~ s#^/+##;
959 unless ($ra) {
960 fatal("E: '$repo_path' is not a complete URL ",
961 "and a separate URL is not specified");
962 }
963 }
964 my $url = $ra->{url};
965 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
966 my $k = "svn-remote.$gs->{repo_id}.url";
967 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
968 if ($orig_url && ($orig_url ne $gs->{url})) {
969 die "$k already set: $orig_url\n",
970 "wanted to set to: $gs->{url}\n";
971 }
972 command_oneline('config', $k, $gs->{url}) unless $orig_url;
973 my $remote_path = "$ra->{svn_path}/$repo_path";
974 $remote_path =~ s#/+#/#g;
975 $remote_path =~ s#^/##g;
976 $remote_path .= "/*" if $remote_path !~ /\*/;
977 my ($n) = ($switch =~ /^--(\w+)/);
978 if (length $pfx && $pfx !~ m#/$#) {
979 die "--prefix='$pfx' must have a trailing slash '/'\n";
980 }
981 command_noisy('config', "svn-remote.$gs->{repo_id}.$n",
982 "$remote_path:refs/remotes/$pfx*");
983 }
984
985 sub verify_ref {
986 my ($ref) = @_;
987 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
988 { STDERR => 0 }); };
989 }
990
991 sub get_tree_from_treeish {
992 my ($treeish) = @_;
993 # $treeish can be a symbolic ref, too:
994 my $type = command_oneline(qw/cat-file -t/, $treeish);
995 my $expected;
996 while ($type eq 'tag') {
997 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
998 }
999 if ($type eq 'commit') {
1000 $expected = (grep /^tree /, command(qw/cat-file commit/,
1001 $treeish))[0];
1002 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1003 die "Unable to get tree from $treeish\n" unless $expected;
1004 } elsif ($type eq 'tree') {
1005 $expected = $treeish;
1006 } else {
1007 die "$treeish is a $type, expected tree, tag or commit\n";
1008 }
1009 return $expected;
1010 }
1011
1012 sub get_commit_entry {
1013 my ($treeish) = shift;
1014 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1015 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1016 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1017 open my $log_fh, '>', $commit_editmsg or croak $!;
1018
1019 my $type = command_oneline(qw/cat-file -t/, $treeish);
1020 if ($type eq 'commit' || $type eq 'tag') {
1021 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1022 $type, $treeish);
1023 my $in_msg = 0;
1024 my $author;
1025 my $saw_from = 0;
1026 my $msgbuf = "";
1027 while (<$msg_fh>) {
1028 if (!$in_msg) {
1029 $in_msg = 1 if (/^\s*$/);
1030 $author = $1 if (/^author (.*>)/);
1031 } elsif (/^git-svn-id: /) {
1032 # skip this for now, we regenerate the
1033 # correct one on re-fetch anyways
1034 # TODO: set *:merge properties or like...
1035 } else {
1036 if (/^From:/ || /^Signed-off-by:/) {
1037 $saw_from = 1;
1038 }
1039 $msgbuf .= $_;
1040 }
1041 }
1042 $msgbuf =~ s/\s+$//s;
1043 if ($Git::SVN::_add_author_from && defined($author)
1044 && !$saw_from) {
1045 $msgbuf .= "\n\nFrom: $author";
1046 }
1047 print $log_fh $msgbuf or croak $!;
1048 command_close_pipe($msg_fh, $ctx);
1049 }
1050 close $log_fh or croak $!;
1051
1052 if ($_edit || ($type eq 'tree')) {
1053 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1054 # TODO: strip out spaces, comments, like git-commit.sh
1055 system($editor, $commit_editmsg);
1056 }
1057 rename $commit_editmsg, $commit_msg or croak $!;
1058 open $log_fh, '<', $commit_msg or croak $!;
1059 { local $/; chomp($log_entry{log} = <$log_fh>); }
1060 close $log_fh or croak $!;
1061 unlink $commit_msg;
1062 \%log_entry;
1063 }
1064
1065 sub s_to_file {
1066 my ($str, $file, $mode) = @_;
1067 open my $fd,'>',$file or croak $!;
1068 print $fd $str,"\n" or croak $!;
1069 close $fd or croak $!;
1070 chmod ($mode &~ umask, $file) if (defined $mode);
1071 }
1072
1073 sub file_to_s {
1074 my $file = shift;
1075 open my $fd,'<',$file or croak "$!: file: $file\n";
1076 local $/;
1077 my $ret = <$fd>;
1078 close $fd or croak $!;
1079 $ret =~ s/\s*$//s;
1080 return $ret;
1081 }
1082
1083 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1084 sub load_authors {
1085 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1086 my $log = $cmd eq 'log';
1087 while (<$authors>) {
1088 chomp;
1089 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1090 my ($user, $name, $email) = ($1, $2, $3);
1091 if ($log) {
1092 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1093 } else {
1094 $users{$user} = [$name, $email];
1095 }
1096 }
1097 close $authors or croak $!;
1098 }
1099
1100 # convert GetOpt::Long specs for use by git-config
1101 sub read_repo_config {
1102 return unless -d $ENV{GIT_DIR};
1103 my $opts = shift;
1104 my @config_only;
1105 foreach my $o (keys %$opts) {
1106 # if we have mixedCase and a long option-only, then
1107 # it's a config-only variable that we don't need for
1108 # the command-line.
1109 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1110 my $v = $opts->{$o};
1111 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1112 $key =~ s/-//g;
1113 my $arg = 'git-config';
1114 $arg .= ' --int' if ($o =~ /[:=]i$/);
1115 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1116 if (ref $v eq 'ARRAY') {
1117 chomp(my @tmp = `$arg --get-all svn.$key`);
1118 @$v = @tmp if @tmp;
1119 } else {
1120 chomp(my $tmp = `$arg --get svn.$key`);
1121 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1122 $$v = $tmp;
1123 }
1124 }
1125 }
1126 delete @$opts{@config_only} if @config_only;
1127 }
1128
1129 sub extract_metadata {
1130 my $id = shift or return (undef, undef, undef);
1131 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1132 \s([a-f\d\-]+)$/x);
1133 if (!defined $rev || !$uuid || !$url) {
1134 # some of the original repositories I made had
1135 # identifiers like this:
1136 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1137 }
1138 return ($url, $rev, $uuid);
1139 }
1140
1141 sub cmt_metadata {
1142 return extract_metadata((grep(/^git-svn-id: /,
1143 command(qw/cat-file commit/, shift)))[-1]);
1144 }
1145
1146 sub working_head_info {
1147 my ($head, $refs) = @_;
1148 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1149 my ($fh, $ctx) = command_output_pipe(@args, $head);
1150 my $hash;
1151 my %max;
1152 while (<$fh>) {
1153 if ( m{^commit ($::sha1)$} ) {
1154 unshift @$refs, $hash if $hash and $refs;
1155 $hash = $1;
1156 next;
1157 }
1158 next unless s{^\s*(git-svn-id:)}{$1};
1159 my ($url, $rev, $uuid) = extract_metadata($_);
1160 if (defined $url && defined $rev) {
1161 next if $max{$url} and $max{$url} < $rev;
1162 if (my $gs = Git::SVN->find_by_url($url)) {
1163 my $c = $gs->rev_map_get($rev);
1164 if ($c && $c eq $hash) {
1165 close $fh; # break the pipe
1166 return ($url, $rev, $uuid, $gs);
1167 } else {
1168 $max{$url} ||= $gs->rev_map_max;
1169 }
1170 }
1171 }
1172 }
1173 command_close_pipe($fh, $ctx);
1174 (undef, undef, undef, undef);
1175 }
1176
1177 sub read_commit_parents {
1178 my ($parents, $c) = @_;
1179 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1180 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1181 @{$parents->{$c}} = split(/ /, $p);
1182 }
1183
1184 sub linearize_history {
1185 my ($gs, $refs) = @_;
1186 my %parents;
1187 foreach my $c (@$refs) {
1188 read_commit_parents(\%parents, $c);
1189 }
1190
1191 my @linear_refs;
1192 my %skip = ();
1193 my $last_svn_commit = $gs->last_commit;
1194 foreach my $c (reverse @$refs) {
1195 next if $c eq $last_svn_commit;
1196 last if $skip{$c};
1197
1198 unshift @linear_refs, $c;
1199 $skip{$c} = 1;
1200
1201 # we only want the first parent to diff against for linear
1202 # history, we save the rest to inject when we finalize the
1203 # svn commit
1204 my $fp_a = verify_ref("$c~1");
1205 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1206 if (!$fp_a || !$fp_b) {
1207 die "Commit $c\n",
1208 "has no parent commit, and therefore ",
1209 "nothing to diff against.\n",
1210 "You should be working from a repository ",
1211 "originally created by git-svn\n";
1212 }
1213 if ($fp_a ne $fp_b) {
1214 die "$c~1 = $fp_a, however parsing commit $c ",
1215 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1216 }
1217
1218 foreach my $p (@{$parents{$c}}) {
1219 $skip{$p} = 1;
1220 }
1221 }
1222 (\@linear_refs, \%parents);
1223 }
1224
1225 sub find_file_type_and_diff_status {
1226 my ($path) = @_;
1227 return ('dir', '') if $path eq '.';
1228
1229 my $diff_output =
1230 command_oneline(qw(diff --cached --name-status --), $path) || "";
1231 my $diff_status = (split(' ', $diff_output))[0] || "";
1232
1233 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1234
1235 return (undef, undef) if !$diff_status && !$ls_tree;
1236
1237 if ($diff_status eq "A") {
1238 return ("link", $diff_status) if -l $path;
1239 return ("dir", $diff_status) if -d $path;
1240 return ("file", $diff_status);
1241 }
1242
1243 my $mode = (split(' ', $ls_tree))[0] || "";
1244
1245 return ("link", $diff_status) if $mode eq "120000";
1246 return ("dir", $diff_status) if $mode eq "040000";
1247 return ("file", $diff_status);
1248 }
1249
1250 sub md5sum {
1251 my $arg = shift;
1252 my $ref = ref $arg;
1253 my $md5 = Digest::MD5->new();
1254 if ($ref eq 'GLOB' || $ref eq 'IO::File') {
1255 $md5->addfile($arg) or croak $!;
1256 } elsif ($ref eq 'SCALAR') {
1257 $md5->add($$arg) or croak $!;
1258 } elsif (!$ref) {
1259 $md5->add($arg) or croak $!;
1260 } else {
1261 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1262 }
1263 return $md5->hexdigest();
1264 }
1265
1266 package Git::SVN;
1267 use strict;
1268 use warnings;
1269 use Fcntl qw/:DEFAULT :seek/;
1270 use constant rev_map_fmt => 'NH40';
1271 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1272 $_repack $_repack_flags $_use_svm_props $_head
1273 $_use_svnsync_props $no_reuse_existing $_minimize_url
1274 $_use_log_author $_add_author_from/;
1275 use Carp qw/croak/;
1276 use File::Path qw/mkpath/;
1277 use File::Copy qw/copy/;
1278 use IPC::Open3;
1279
1280 my ($_gc_nr, $_gc_period);
1281
1282 # properties that we do not log:
1283 my %SKIP_PROP;
1284 BEGIN {
1285 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1286 svn:special svn:executable
1287 svn:entry:committed-rev
1288 svn:entry:last-author
1289 svn:entry:uuid
1290 svn:entry:committed-date/;
1291
1292 # some options are read globally, but can be overridden locally
1293 # per [svn-remote "..."] section. Command-line options will *NOT*
1294 # override options set in an [svn-remote "..."] section
1295 no strict 'refs';
1296 for my $option (qw/follow_parent no_metadata use_svm_props
1297 use_svnsync_props/) {
1298 my $key = $option;
1299 $key =~ tr/_//d;
1300 my $prop = "-$option";
1301 *$option = sub {
1302 my ($self) = @_;
1303 return $self->{$prop} if exists $self->{$prop};
1304 my $k = "svn-remote.$self->{repo_id}.$key";
1305 eval { command_oneline(qw/config --get/, $k) };
1306 if ($@) {
1307 $self->{$prop} = ${"Git::SVN::_$option"};
1308 } else {
1309 my $v = command_oneline(qw/config --bool/,$k);
1310 $self->{$prop} = $v eq 'false' ? 0 : 1;
1311 }
1312 return $self->{$prop};
1313 }
1314 }
1315 }
1316
1317 my (%LOCKFILES, %INDEX_FILES);
1318 END {
1319 unlink keys %LOCKFILES if %LOCKFILES;
1320 unlink keys %INDEX_FILES if %INDEX_FILES;
1321 }
1322
1323 sub resolve_local_globs {
1324 my ($url, $fetch, $glob_spec) = @_;
1325 return unless defined $glob_spec;
1326 my $ref = $glob_spec->{ref};
1327 my $path = $glob_spec->{path};
1328 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
1329 next unless m#^refs/remotes/$ref->{regex}$#;
1330 my $p = $1;
1331 my $pathname = desanitize_refname($path->full_path($p));
1332 my $refname = desanitize_refname($ref->full_path($p));
1333 if (my $existing = $fetch->{$pathname}) {
1334 if ($existing ne $refname) {
1335 die "Refspec conflict:\n",
1336 "existing: refs/remotes/$existing\n",
1337 " globbed: refs/remotes/$refname\n";
1338 }
1339 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
1340 $u =~ s!^\Q$url\E(/|$)!! or die
1341 "refs/remotes/$refname: '$url' not found in '$u'\n";
1342 if ($pathname ne $u) {
1343 warn "W: Refspec glob conflict ",
1344 "(ref: refs/remotes/$refname):\n",
1345 "expected path: $pathname\n",
1346 " real path: $u\n",
1347 "Continuing ahead with $u\n";
1348 next;
1349 }
1350 } else {
1351 $fetch->{$pathname} = $refname;
1352 }
1353 }
1354 }
1355
1356 sub parse_revision_argument {
1357 my ($base, $head) = @_;
1358 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1359 return ($base, $head);
1360 }
1361 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1362 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1363 return ($head, $head) if ($::_revision eq 'HEAD');
1364 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1365 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1366 die "revision argument: $::_revision not understood by git-svn\n";
1367 }
1368
1369 sub fetch_all {
1370 my ($repo_id, $remotes) = @_;
1371 if (ref $repo_id) {
1372 my $gs = $repo_id;
1373 $repo_id = undef;
1374 $repo_id = $gs->{repo_id};
1375 }
1376 $remotes ||= read_all_remotes();
1377 my $remote = $remotes->{$repo_id} or
1378 die "[svn-remote \"$repo_id\"] unknown\n";
1379 my $fetch = $remote->{fetch};
1380 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1381 my (@gs, @globs);
1382 my $ra = Git::SVN::Ra->new($url);
1383 my $uuid = $ra->get_uuid;
1384 my $head = $ra->get_latest_revnum;
1385 my $base = defined $fetch ? $head : 0;
1386
1387 # read the max revs for wildcard expansion (branches/*, tags/*)
1388 foreach my $t (qw/branches tags/) {
1389 defined $remote->{$t} or next;
1390 push @globs, $remote->{$t};
1391 my $max_rev = eval { tmp_config(qw/--int --get/,
1392 "svn-remote.$repo_id.${t}-maxRev") };
1393 if (defined $max_rev && ($max_rev < $base)) {
1394 $base = $max_rev;
1395 } elsif (!defined $max_rev) {
1396 $base = 0;
1397 }
1398 }
1399
1400 if ($fetch) {
1401 foreach my $p (sort keys %$fetch) {
1402 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1403 my $lr = $gs->rev_map_max;
1404 if (defined $lr) {
1405 $base = $lr if ($lr < $base);
1406 }
1407 push @gs, $gs;
1408 }
1409 }
1410
1411 ($base, $head) = parse_revision_argument($base, $head);
1412 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1413 }
1414
1415 sub read_all_remotes {
1416 my $r = {};
1417 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1418 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
1419 my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
1420 $local_ref =~ s{^/}{};
1421 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1422 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1423 $r->{$1}->{url} = $2;
1424 } elsif (m!^(.+)\.(branches|tags)=
1425 (.*):refs/remotes/(.+)\s*$/!x) {
1426 my ($p, $g) = ($3, $4);
1427 my $rs = $r->{$1}->{$2} = {
1428 t => $2,
1429 remote => $1,
1430 path => Git::SVN::GlobSpec->new($p),
1431 ref => Git::SVN::GlobSpec->new($g) };
1432 if (length($rs->{ref}->{right}) != 0) {
1433 die "The '*' glob character must be the last ",
1434 "character of '$g'\n";
1435 }
1436 }
1437 }
1438 $r;
1439 }
1440
1441 sub init_vars {
1442 $_gc_nr = $_gc_period = 1000;
1443 if (defined $_repack || defined $_repack_flags) {
1444 warn "Repack options are obsolete; they have no effect.\n";
1445 }
1446 }
1447
1448 sub verify_remotes_sanity {
1449 return unless -d $ENV{GIT_DIR};
1450 my %seen;
1451 foreach (command(qw/config -l/)) {
1452 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1453 if ($seen{$1}) {
1454 die "Remote ref refs/remote/$1 is tracked by",
1455 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1456 "Please resolve this ambiguity in ",
1457 "your git configuration file before ",
1458 "continuing\n";
1459 }
1460 $seen{$1} = $_;
1461 }
1462 }
1463 }
1464
1465 sub find_existing_remote {
1466 my ($url, $remotes) = @_;
1467 return undef if $no_reuse_existing;
1468 my $existing;
1469 foreach my $repo_id (keys %$remotes) {
1470 my $u = $remotes->{$repo_id}->{url} or next;
1471 next if $u ne $url;
1472 $existing = $repo_id;
1473 last;
1474 }
1475 $existing;
1476 }
1477
1478 sub init_remote_config {
1479 my ($self, $url, $no_write) = @_;
1480 $url =~ s!/+$!!; # strip trailing slash
1481 my $r = read_all_remotes();
1482 my $existing = find_existing_remote($url, $r);
1483 if ($existing) {
1484 unless ($no_write) {
1485 print STDERR "Using existing ",
1486 "[svn-remote \"$existing\"]\n";
1487 }
1488 $self->{repo_id} = $existing;
1489 } elsif ($_minimize_url) {
1490 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1491 $existing = find_existing_remote($min_url, $r);
1492 if ($existing) {
1493 unless ($no_write) {
1494 print STDERR "Using existing ",
1495 "[svn-remote \"$existing\"]\n";
1496 }
1497 $self->{repo_id} = $existing;
1498 }
1499 if ($min_url ne $url) {
1500 unless ($no_write) {
1501 print STDERR "Using higher level of URL: ",
1502 "$url => $min_url\n";
1503 }
1504 my $old_path = $self->{path};
1505 $self->{path} = $url;
1506 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1507 if (length $old_path) {
1508 $self->{path} .= "/$old_path";
1509 }
1510 $url = $min_url;
1511 }
1512 }
1513 my $orig_url;
1514 if (!$existing) {
1515 # verify that we aren't overwriting anything:
1516 $orig_url = eval {
1517 command_oneline('config', '--get',
1518 "svn-remote.$self->{repo_id}.url")
1519 };
1520 if ($orig_url && ($orig_url ne $url)) {
1521 die "svn-remote.$self->{repo_id}.url already set: ",
1522 "$orig_url\nwanted to set to: $url\n";
1523 }
1524 }
1525 my ($xrepo_id, $xpath) = find_ref($self->refname);
1526 if (defined $xpath) {
1527 die "svn-remote.$xrepo_id.fetch already set to track ",
1528 "$xpath:refs/remotes/", $self->refname, "\n";
1529 }
1530 unless ($no_write) {
1531 command_noisy('config',
1532 "svn-remote.$self->{repo_id}.url", $url);
1533 $self->{path} =~ s{^/}{};
1534 command_noisy('config', '--add',
1535 "svn-remote.$self->{repo_id}.fetch",
1536 "$self->{path}:".$self->refname);
1537 }
1538 $self->{url} = $url;
1539 }
1540
1541 sub find_by_url { # repos_root and, path are optional
1542 my ($class, $full_url, $repos_root, $path) = @_;
1543
1544 return undef unless defined $full_url;
1545 remove_username($full_url);
1546 remove_username($repos_root) if defined $repos_root;
1547 my $remotes = read_all_remotes();
1548 if (defined $full_url && defined $repos_root && !defined $path) {
1549 $path = $full_url;
1550 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1551 }
1552 foreach my $repo_id (keys %$remotes) {
1553 my $u = $remotes->{$repo_id}->{url} or next;
1554 remove_username($u);
1555 next if defined $repos_root && $repos_root ne $u;
1556
1557 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1558 foreach (qw/branches tags/) {
1559 resolve_local_globs($u, $fetch,
1560 $remotes->{$repo_id}->{$_});
1561 }
1562 my $p = $path;
1563 my $rwr = rewrite_root({repo_id => $repo_id});
1564 unless (defined $p) {
1565 $p = $full_url;
1566 my $z = $u;
1567 if ($rwr) {
1568 $z = $rwr;
1569 }
1570 $p =~ s#^\Q$z\E(?:/|$)## or next;
1571 }
1572 foreach my $f (keys %$fetch) {
1573 next if $f ne $p;
1574 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1575 }
1576 }
1577 undef;
1578 }
1579
1580 sub init {
1581 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1582 my $self = _new($class, $repo_id, $ref_id, $path);
1583 if (defined $url) {
1584 $self->init_remote_config($url, $no_write);
1585 }
1586 $self;
1587 }
1588
1589 sub find_ref {
1590 my ($ref_id) = @_;
1591 foreach (command(qw/config -l/)) {
1592 next unless m!^svn-remote\.(.+)\.fetch=
1593 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1594 my ($repo_id, $path, $ref) = ($1, $2, $3);
1595 if ($ref eq $ref_id) {
1596 $path = '' if ($path =~ m#^\./?#);
1597 return ($repo_id, $path);
1598 }
1599 }
1600 (undef, undef, undef);
1601 }
1602
1603 sub new {
1604 my ($class, $ref_id, $repo_id, $path) = @_;
1605 if (defined $ref_id && !defined $repo_id && !defined $path) {
1606 ($repo_id, $path) = find_ref($ref_id);
1607 if (!defined $repo_id) {
1608 die "Could not find a \"svn-remote.*.fetch\" key ",
1609 "in the repository configuration matching: ",
1610 "refs/remotes/$ref_id\n";
1611 }
1612 }
1613 my $self = _new($class, $repo_id, $ref_id, $path);
1614 if (!defined $self->{path} || !length $self->{path}) {
1615 my $fetch = command_oneline('config', '--get',
1616 "svn-remote.$repo_id.fetch",
1617 ":refs/remotes/$ref_id\$") or
1618 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1619 "\":refs/remotes/$ref_id\$\" in config\n";
1620 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1621 }
1622 $self->{url} = command_oneline('config', '--get',
1623 "svn-remote.$repo_id.url") or
1624 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1625 $self->rebuild;
1626 $self;
1627 }
1628
1629 sub refname {
1630 my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
1631
1632 # It cannot end with a slash /, we'll throw up on this because
1633 # SVN can't have directories with a slash in their name, either:
1634 if ($refname =~ m{/$}) {
1635 die "ref: '$refname' ends with a trailing slash, this is ",
1636 "not permitted by git nor Subversion\n";
1637 }
1638
1639 # It cannot have ASCII control character space, tilde ~, caret ^,
1640 # colon :, question-mark ?, asterisk *, space, or open bracket [
1641 # anywhere.
1642 #
1643 # Additionally, % must be escaped because it is used for escaping
1644 # and we want our escaped refname to be reversible
1645 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
1646
1647 # no slash-separated component can begin with a dot .
1648 # /.* becomes /%2E*
1649 $refname =~ s{/\.}{/%2E}g;
1650
1651 # It cannot have two consecutive dots .. anywhere
1652 # .. becomes %2E%2E
1653 $refname =~ s{\.\.}{%2E%2E}g;
1654
1655 return $refname;
1656 }
1657
1658 sub desanitize_refname {
1659 my ($refname) = @_;
1660 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
1661 return $refname;
1662 }
1663
1664 sub svm_uuid {
1665 my ($self) = @_;
1666 return $self->{svm}->{uuid} if $self->svm;
1667 $self->ra;
1668 unless ($self->{svm}) {
1669 die "SVM UUID not cached, and reading remotely failed\n";
1670 }
1671 $self->{svm}->{uuid};
1672 }
1673
1674 sub svm {
1675 my ($self) = @_;
1676 return $self->{svm} if $self->{svm};
1677 my $svm;
1678 # see if we have it in our config, first:
1679 eval {
1680 my $section = "svn-remote.$self->{repo_id}";
1681 $svm = {
1682 source => tmp_config('--get', "$section.svm-source"),
1683 uuid => tmp_config('--get', "$section.svm-uuid"),
1684 replace => tmp_config('--get', "$section.svm-replace"),
1685 }
1686 };
1687 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1688 $self->{svm} = $svm;
1689 }
1690 $self->{svm};
1691 }
1692
1693 sub _set_svm_vars {
1694 my ($self, $ra) = @_;
1695 return $ra if $self->svm;
1696
1697 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1698 "(svm:source, svm:uuid) ",
1699 "from the following URLs:\n" );
1700 sub read_svm_props {
1701 my ($self, $ra, $path, $r) = @_;
1702 my $props = ($ra->get_dir($path, $r))[2];
1703 my $src = $props->{'svm:source'};
1704 my $uuid = $props->{'svm:uuid'};
1705 return undef if (!$src || !$uuid);
1706
1707 chomp($src, $uuid);
1708
1709 $uuid =~ m{^[0-9a-f\-]{30,}$}
1710 or die "doesn't look right - svm:uuid is '$uuid'\n";
1711
1712 # the '!' is used to mark the repos_root!/relative/path
1713 $src =~ s{/?!/?}{/};
1714 $src =~ s{/+$}{}; # no trailing slashes please
1715 # username is of no interest
1716 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1717
1718 my $replace = $ra->{url};
1719 $replace .= "/$path" if length $path;
1720
1721 my $section = "svn-remote.$self->{repo_id}";
1722 tmp_config("$section.svm-source", $src);
1723 tmp_config("$section.svm-replace", $replace);
1724 tmp_config("$section.svm-uuid", $uuid);
1725 $self->{svm} = {
1726 source => $src,
1727 uuid => $uuid,
1728 replace => $replace
1729 };
1730 }
1731
1732 my $r = $ra->get_latest_revnum;
1733 my $path = $self->{path};
1734 my %tried;
1735 while (length $path) {
1736 unless ($tried{"$self->{url}/$path"}) {
1737 return $ra if $self->read_svm_props($ra, $path, $r);
1738 $tried{"$self->{url}/$path"} = 1;
1739 }
1740 $path =~ s#/?[^/]+$##;
1741 }
1742 die "Path: '$path' should be ''\n" if $path ne '';
1743 return $ra if $self->read_svm_props($ra, $path, $r);
1744 $tried{"$self->{url}/$path"} = 1;
1745
1746 if ($ra->{repos_root} eq $self->{url}) {
1747 die @err, (map { " $_\n" } keys %tried), "\n";
1748 }
1749
1750 # nope, make sure we're connected to the repository root:
1751 my $ok;
1752 my @tried_b;
1753 $path = $ra->{svn_path};
1754 $ra = Git::SVN::Ra->new($ra->{repos_root});
1755 while (length $path) {
1756 unless ($tried{"$ra->{url}/$path"}) {
1757 $ok = $self->read_svm_props($ra, $path, $r);
1758 last if $ok;
1759 $tried{"$ra->{url}/$path"} = 1;
1760 }
1761 $path =~ s#/?[^/]+$##;
1762 }
1763 die "Path: '$path' should be ''\n" if $path ne '';
1764 $ok ||= $self->read_svm_props($ra, $path, $r);
1765 $tried{"$ra->{url}/$path"} = 1;
1766 if (!$ok) {
1767 die @err, (map { " $_\n" } keys %tried), "\n";
1768 }
1769 Git::SVN::Ra->new($self->{url});
1770 }
1771
1772 sub svnsync {
1773 my ($self) = @_;
1774 return $self->{svnsync} if $self->{svnsync};
1775
1776 if ($self->no_metadata) {
1777 die "Can't have both 'noMetadata' and ",
1778 "'useSvnsyncProps' options set!\n";
1779 }
1780 if ($self->rewrite_root) {
1781 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1782 "options set!\n";
1783 }
1784
1785 my $svnsync;
1786 # see if we have it in our config, first:
1787 eval {
1788 my $section = "svn-remote.$self->{repo_id}";
1789
1790 my $url = tmp_config('--get', "$section.svnsync-url");
1791 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1792 die "doesn't look right - svn:sync-from-url is '$url'\n";
1793
1794 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
1795 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1796 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1797
1798 $svnsync = { url => $url, uuid => $uuid }
1799 };
1800 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1801 return $self->{svnsync} = $svnsync;
1802 }
1803
1804 my $err = "useSvnsyncProps set, but failed to read " .
1805 "svnsync property: svn:sync-from-";
1806 my $rp = $self->ra->rev_proplist(0);
1807
1808 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1809 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1810 die "doesn't look right - svn:sync-from-url is '$url'\n";
1811
1812 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1813 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1814 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1815
1816 my $section = "svn-remote.$self->{repo_id}";
1817 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1818 tmp_config('--add', "$section.svnsync-url", $url);
1819 return $self->{svnsync} = { url => $url, uuid => $uuid };
1820 }
1821
1822 # this allows us to memoize our SVN::Ra UUID locally and avoid a
1823 # remote lookup (useful for 'git svn log').
1824 sub ra_uuid {
1825 my ($self) = @_;
1826 unless ($self->{ra_uuid}) {
1827 my $key = "svn-remote.$self->{repo_id}.uuid";
1828 my $uuid = eval { tmp_config('--get', $key) };
1829 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1830 $self->{ra_uuid} = $uuid;
1831 } else {
1832 die "ra_uuid called without URL\n" unless $self->{url};
1833 $self->{ra_uuid} = $self->ra->get_uuid;
1834 tmp_config('--add', $key, $self->{ra_uuid});
1835 }
1836 }
1837 $self->{ra_uuid};
1838 }
1839
1840 sub _set_repos_root {
1841 my ($self, $repos_root) = @_;
1842 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1843 $repos_root ||= $self->ra->{repos_root};
1844 tmp_config($k, $repos_root);
1845 $repos_root;
1846 }
1847
1848 sub repos_root {
1849 my ($self) = @_;
1850 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1851 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
1852 }
1853
1854 sub ra {
1855 my ($self) = shift;
1856 my $ra = Git::SVN::Ra->new($self->{url});
1857 $self->_set_repos_root($ra->{repos_root});
1858 if ($self->use_svm_props && !$self->{svm}) {
1859 if ($self->no_metadata) {
1860 die "Can't have both 'noMetadata' and ",
1861 "'useSvmProps' options set!\n";
1862 } elsif ($self->use_svnsync_props) {
1863 die "Can't have both 'useSvnsyncProps' and ",
1864 "'useSvmProps' options set!\n";
1865 }
1866 $ra = $self->_set_svm_vars($ra);
1867 $self->{-want_revprops} = 1;
1868 }
1869 $ra;
1870 }
1871
1872 sub rel_path {
1873 my ($self) = @_;
1874 my $repos_root = $self->ra->{repos_root};
1875 return $self->{path} if ($self->{url} eq $repos_root);
1876 my $url = $self->{url} .
1877 (length $self->{path} ? "/$self->{path}" : $self->{path});
1878 $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
1879 $url;
1880 }
1881
1882 # prop_walk(PATH, REV, SUB)
1883 # -------------------------
1884 # Recursively traverse PATH at revision REV and invoke SUB for each
1885 # directory that contains a SVN property. SUB will be invoked as
1886 # follows: &SUB(gs, path, props); where `gs' is this instance of
1887 # Git::SVN, `path' the path to the directory where the properties
1888 # `props' were found. The `path' will be relative to point of checkout,
1889 # that is, if url://repo/trunk is the current Git branch, and that
1890 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
1891 # as `path' (note the trailing `/').
1892 sub prop_walk {
1893 my ($self, $path, $rev, $sub) = @_;
1894
1895 $path =~ s#^/##;
1896 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
1897 $path =~ s#^/*#/#g;
1898 my $p = $path;
1899 # Strip the irrelevant part of the path.
1900 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
1901 # Ensure the path is terminated by a `/'.
1902 $p =~ s#/*$#/#;
1903
1904 # The properties contain all the internal SVN stuff nobody
1905 # (usually) cares about.
1906 my $interesting_props = 0;
1907 foreach (keys %{$props}) {
1908 # If it doesn't start with `svn:', it must be a
1909 # user-defined property.
1910 ++$interesting_props and next if $_ !~ /^svn:/;
1911 # FIXME: Fragile, if SVN adds new public properties,
1912 # this needs to be updated.
1913 ++$interesting_props if /^svn:(?:ignore|keywords|executable
1914 |eol-style|mime-type
1915 |externals|needs-lock)$/x;
1916 }
1917 &$sub($self, $p, $props) if $interesting_props;
1918
1919 foreach (sort keys %$dirent) {
1920 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
1921 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
1922 }
1923 }
1924
1925 sub last_rev { ($_[0]->last_rev_commit)[0] }
1926 sub last_commit { ($_[0]->last_rev_commit)[1] }
1927
1928 # returns the newest SVN revision number and newest commit SHA1
1929 sub last_rev_commit {
1930 my ($self) = @_;
1931 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1932 return ($self->{last_rev}, $self->{last_commit});
1933 }
1934 my $c = ::verify_ref($self->refname.'^0');
1935 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1936 my $rev = (::cmt_metadata($c))[1];
1937 if (defined $rev) {
1938 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1939 return ($rev, $c);
1940 }
1941 }
1942 my $map_path = $self->map_path;
1943 unless (-e $map_path) {
1944 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
1945 return (undef, undef);
1946 }
1947 my ($rev, $commit) = $self->rev_map_max(1);
1948 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
1949 return ($rev, $commit);
1950 }
1951
1952 sub get_fetch_range {
1953 my ($self, $min, $max) = @_;
1954 $max ||= $self->ra->get_latest_revnum;
1955 $min ||= $self->rev_map_max;
1956 (++$min, $max);
1957 }
1958
1959 sub tmp_config {
1960 my (@args) = @_;
1961 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
1962 my $config = "$ENV{GIT_DIR}/svn/.metadata";
1963 if (! -f $config && -f $old_def_config) {
1964 rename $old_def_config, $config or
1965 die "Failed rename $old_def_config => $config: $!\n";
1966 }
1967 my $old_config = $ENV{GIT_CONFIG};
1968 $ENV{GIT_CONFIG} = $config;
1969 $@ = undef;
1970 my @ret = eval {
1971 unless (-f $config) {
1972 mkfile($config);
1973 open my $fh, '>', $config or
1974 die "Can't open $config: $!\n";
1975 print $fh "; This file is used internally by ",
1976 "git-svn\n" or die
1977 "Couldn't write to $config: $!\n";
1978 print $fh "; You should not have to edit it\n" or
1979 die "Couldn't write to $config: $!\n";
1980 close $fh or die "Couldn't close $config: $!\n";
1981 }
1982 command('config', @args);
1983 };
1984 my $err = $@;
1985 if (defined $old_config) {
1986 $ENV{GIT_CONFIG} = $old_config;
1987 } else {
1988 delete $ENV{GIT_CONFIG};
1989 }
1990 die $err if $err;
1991 wantarray ? @ret : $ret[0];
1992 }
1993
1994 sub tmp_index_do {
1995 my ($self, $sub) = @_;
1996 my $old_index = $ENV{GIT_INDEX_FILE};
1997 $ENV{GIT_INDEX_FILE} = $self->{index};
1998 $@ = undef;
1999 my @ret = eval {
2000 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2001 mkpath([$dir]) unless -d $dir;
2002 &$sub;
2003 };
2004 my $err = $@;
2005 if (defined $old_index) {
2006 $ENV{GIT_INDEX_FILE} = $old_index;
2007 } else {
2008 delete $ENV{GIT_INDEX_FILE};
2009 }
2010 die $err if $err;
2011 wantarray ? @ret : $ret[0];
2012 }
2013
2014 sub assert_index_clean {
2015 my ($self, $treeish) = @_;
2016
2017 $self->tmp_index_do(sub {
2018 command_noisy('read-tree', $treeish) unless -e $self->{index};
2019 my $x = command_oneline('write-tree');
2020 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2021 /^tree ($::sha1)/mo);
2022 return if $y eq $x;
2023
2024 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2025 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2026 command_noisy('read-tree', $treeish);
2027 $x = command_oneline('write-tree');
2028 if ($y ne $x) {
2029 ::fatal "trees ($treeish) $y != $x\n",
2030 "Something is seriously wrong...";
2031 }
2032 });
2033 }
2034
2035 sub get_commit_parents {
2036 my ($self, $log_entry) = @_;
2037 my (%seen, @ret, @tmp);
2038 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2039 if (my $ip = $self->{inject_parents}) {
2040 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2041 push @tmp, $commit;
2042 }
2043 }
2044 if (my $cur = ::verify_ref($self->refname.'^0')) {
2045 push @tmp, $cur;
2046 }
2047 if (my $ipd = $self->{inject_parents_dcommit}) {
2048 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2049 push @tmp, @$commit;
2050 }
2051 }
2052 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2053 while (my $p = shift @tmp) {
2054 next if $seen{$p};
2055 $seen{$p} = 1;
2056 push @ret, $p;
2057 # MAXPARENT is defined to 16 in commit-tree.c:
2058 last if @ret >= 16;
2059 }
2060 if (@tmp) {
2061 die "r$log_entry->{revision}: No room for parents:\n\t",
2062 join("\n\t", @tmp), "\n";
2063 }
2064 @ret;
2065 }
2066
2067 sub rewrite_root {
2068 my ($self) = @_;
2069 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2070 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2071 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2072 if ($rwr) {
2073 $rwr =~ s#/+$##;
2074 if ($rwr !~ m#^[a-z\+]+://#) {
2075 die "$rwr is not a valid URL (key: $k)\n";
2076 }
2077 }
2078 $self->{-rewrite_root} = $rwr;
2079 }
2080
2081 sub metadata_url {
2082 my ($self) = @_;
2083 ($self->rewrite_root || $self->{url}) .
2084 (length $self->{path} ? '/' . $self->{path} : '');
2085 }
2086
2087 sub full_url {
2088 my ($self) = @_;
2089 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2090 }
2091
2092
2093 sub set_commit_header_env {
2094 my ($log_entry) = @_;
2095 my %env;
2096 foreach my $ned (qw/NAME EMAIL DATE/) {
2097 foreach my $ac (qw/AUTHOR COMMITTER/) {
2098 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2099 }
2100 }
2101
2102 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2103 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2104 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2105
2106 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2107 ? $log_entry->{commit_name}
2108 : $log_entry->{name};
2109 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2110 ? $log_entry->{commit_email}
2111 : $log_entry->{email};
2112 \%env;
2113 }
2114
2115 sub restore_commit_header_env {
2116 my ($env) = @_;
2117 foreach my $ned (qw/NAME EMAIL DATE/) {
2118 foreach my $ac (qw/AUTHOR COMMITTER/) {
2119 my $k = "GIT_${ac}_${ned}";
2120 if (defined $env->{$k}) {
2121 $ENV{$k} = $env->{$k};
2122 } else {
2123 delete $ENV{$k};
2124 }
2125 }
2126 }
2127 }
2128
2129 sub gc {
2130 command_noisy('gc', '--auto');
2131 };
2132
2133 sub do_git_commit {
2134 my ($self, $log_entry) = @_;
2135 my $lr = $self->last_rev;
2136 if (defined $lr && $lr >= $log_entry->{revision}) {
2137 die "Last fetched revision of ", $self->refname,
2138 " was r$lr, but we are about to fetch: ",
2139 "r$log_entry->{revision}!\n";
2140 }
2141 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2142 croak "$log_entry->{revision} = $c already exists! ",
2143 "Why are we refetching it?\n";
2144 }
2145 my $old_env = set_commit_header_env($log_entry);
2146 my $tree = $log_entry->{tree};
2147 if (!defined $tree) {
2148 $tree = $self->tmp_index_do(sub {
2149 command_oneline('write-tree') });
2150 }
2151 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2152
2153 my @exec = ('git-commit-tree', $tree);
2154 foreach ($self->get_commit_parents($log_entry)) {
2155 push @exec, '-p', $_;
2156 }
2157 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2158 or croak $!;
2159 print $msg_fh $log_entry->{log} or croak $!;
2160 restore_commit_header_env($old_env);
2161 unless ($self->no_metadata) {
2162 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2163 or croak $!;
2164 }
2165 $msg_fh->flush == 0 or croak $!;
2166 close $msg_fh or croak $!;
2167 chomp(my $commit = do { local $/; <$out_fh> });
2168 close $out_fh or croak $!;
2169 waitpid $pid, 0;
2170 croak $? if $?;
2171 if ($commit !~ /^$::sha1$/o) {
2172 die "Failed to commit, invalid sha1: $commit\n";
2173 }
2174
2175 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2176
2177 $self->{last_rev} = $log_entry->{revision};
2178 $self->{last_commit} = $commit;
2179 print "r$log_entry->{revision}";
2180 if (defined $log_entry->{svm_revision}) {
2181 print " (\@$log_entry->{svm_revision})";
2182 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2183 0, $self->svm_uuid);
2184 }
2185 print " = $commit ($self->{ref_id})\n";
2186 if (--$_gc_nr == 0) {
2187 $_gc_nr = $_gc_period;
2188 gc();
2189 }
2190 return $commit;
2191 }
2192
2193 sub match_paths {
2194 my ($self, $paths, $r) = @_;
2195 return 1 if $self->{path} eq '';
2196 if (my $path = $paths->{"/$self->{path}"}) {
2197 return ($path->{action} eq 'D') ? 0 : 1;
2198 }
2199 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2200 if (grep /$self->{path_regex}/, keys %$paths) {
2201 return 1;
2202 }
2203 my $c = '';
2204 foreach (split m#/#, $self->{path}) {
2205 $c .= "/$_";
2206 next unless ($paths->{$c} &&
2207 ($paths->{$c}->{action} =~ /^[AR]$/));
2208 if ($self->ra->check_path($self->{path}, $r) ==
2209 $SVN::Node::dir) {
2210 return 1;
2211 }
2212 }
2213 return 0;
2214 }
2215
2216 sub find_parent_branch {
2217 my ($self, $paths, $rev) = @_;
2218 return undef unless $self->follow_parent;
2219 unless (defined $paths) {
2220 my $err_handler = $SVN::Error::handler;
2221 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2222 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
2223 $paths =
2224 Git::SVN::Ra::dup_changed_paths($_[0]) });
2225 $SVN::Error::handler = $err_handler;
2226 }
2227 return undef unless defined $paths;
2228
2229 # look for a parent from another branch:
2230 my @b_path_components = split m#/#, $self->rel_path;
2231 my @a_path_components;
2232 my $i;
2233 while (@b_path_components) {
2234 $i = $paths->{'/'.join('/', @b_path_components)};
2235 last if $i && defined $i->{copyfrom_path};
2236 unshift(@a_path_components, pop(@b_path_components));
2237 }
2238 return undef unless defined $i && defined $i->{copyfrom_path};
2239 my $branch_from = $i->{copyfrom_path};
2240 if (@a_path_components) {
2241 print STDERR "branch_from: $branch_from => ";
2242 $branch_from .= '/'.join('/', @a_path_components);
2243 print STDERR $branch_from, "\n";
2244 }
2245 my $r = $i->{copyfrom_rev};
2246 my $repos_root = $self->ra->{repos_root};
2247 my $url = $self->ra->{url};
2248 my $new_url = $repos_root . $branch_from;
2249 print STDERR "Found possible branch point: ",
2250 "$new_url => ", $self->full_url, ", $r\n";
2251 $branch_from =~ s#^/##;
2252 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
2253 unless ($gs) {
2254 my $ref_id = $self->{ref_id};
2255 $ref_id =~ s/\@\d+$//;
2256 $ref_id .= "\@$r";
2257 # just grow a tail if we're not unique enough :x
2258 $ref_id .= '-' while find_ref($ref_id);
2259 print STDERR "Initializing parent: $ref_id\n";
2260 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2261 if ($u =~ s#^\Q$url\E(/|$)##) {
2262 $p = $u;
2263 $u = $url;
2264 $repo_id = $self->{repo_id};
2265 }
2266 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2267 }
2268 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2269 if (!defined $r0 || !defined $parent) {
2270 my ($base, $head) = parse_revision_argument(0, $r);
2271 if ($base <= $r) {
2272 $gs->fetch($base, $r);
2273 }
2274 ($r0, $parent) = $gs->last_rev_commit;
2275 }
2276 if (defined $r0 && defined $parent) {
2277 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
2278 my $ed;
2279 if ($self->ra->can_do_switch) {
2280 $self->assert_index_clean($parent);
2281 print STDERR "Following parent with do_switch\n";
2282 # do_switch works with svn/trunk >= r22312, but that
2283 # is not included with SVN 1.4.3 (the latest version
2284 # at the moment), so we can't rely on it
2285 $self->{last_commit} = $parent;
2286 $ed = SVN::Git::Fetcher->new($self);
2287 $gs->ra->gs_do_switch($r0, $rev, $gs,
2288 $self->full_url, $ed)
2289 or die "SVN connection failed somewhere...\n";
2290 } elsif ($self->ra->trees_match($new_url, $r0,
2291 $self->full_url, $rev)) {
2292 print STDERR "Trees match:\n",
2293 " $new_url\@$r0\n",
2294 " ${\$self->full_url}\@$rev\n",
2295 "Following parent with no changes\n";
2296 $self->tmp_index_do(sub {
2297 command_noisy('read-tree', $parent);
2298 });
2299 $self->{last_commit} = $parent;
2300 } else {
2301 print STDERR "Following parent with do_update\n";
2302 $ed = SVN::Git::Fetcher->new($self);
2303 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2304 or die "SVN connection failed somewhere...\n";
2305 }
2306 print STDERR "Successfully followed parent\n";
2307 return $self->make_log_entry($rev, [$parent], $ed);
2308 }
2309 return undef;
2310 }
2311
2312 sub do_fetch {
2313 my ($self, $paths, $rev) = @_;
2314 my $ed;
2315 my ($last_rev, @parents);
2316 if (my $lc = $self->last_commit) {
2317 # we can have a branch that was deleted, then re-added
2318 # under the same name but copied from another path, in
2319 # which case we'll have multiple parents (we don't
2320 # want to break the original ref, nor lose copypath info):
2321 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2322 push @{$log_entry->{parents}}, $lc;
2323 return $log_entry;
2324 }
2325 $ed = SVN::Git::Fetcher->new($self);
2326 $last_rev = $self->{last_rev};
2327 $ed->{c} = $lc;
2328 @parents = ($lc);
2329 } else {
2330 $last_rev = $rev;
2331 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2332 return $log_entry;
2333 }
2334 $ed = SVN::Git::Fetcher->new($self);
2335 }
2336 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2337 die "SVN connection failed somewhere...\n";
2338 }
2339 $self->make_log_entry($rev, \@parents, $ed);
2340 }
2341
2342 sub get_untracked {
2343 my ($self, $ed) = @_;
2344 my @out;
2345 my $h = $ed->{empty};
2346 foreach (sort keys %$h) {
2347 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2348 push @out, " $act: " . uri_encode($_);
2349 warn "W: $act: $_\n";
2350 }
2351 foreach my $t (qw/dir_prop file_prop/) {
2352 $h = $ed->{$t} or next;
2353 foreach my $path (sort keys %$h) {
2354 my $ppath = $path eq '' ? '.' : $path;
2355 foreach my $prop (sort keys %{$h->{$path}}) {
2356 next if $SKIP_PROP{$prop};
2357 my $v = $h->{$path}->{$prop};
2358 my $t_ppath_prop = "$t: " .
2359 uri_encode($ppath) . ' ' .
2360 uri_encode($prop);
2361 if (defined $v) {
2362 push @out, " +$t_ppath_prop " .
2363 uri_encode($v);
2364 } else {
2365 push @out, " -$t_ppath_prop";
2366 }
2367 }
2368 }
2369 }
2370 foreach my $t (qw/absent_file absent_directory/) {
2371 $h = $ed->{$t} or next;
2372 foreach my $parent (sort keys %$h) {
2373 foreach my $path (sort @{$h->{$parent}}) {
2374 push @out, " $t: " .
2375 uri_encode("$parent/$path");
2376 warn "W: $t: $parent/$path ",
2377 "Insufficient permissions?\n";
2378 }
2379 }
2380 }
2381 \@out;
2382 }
2383
2384 sub parse_svn_date {
2385 my $date = shift || return '+0000 1970-01-01 00:00:00';
2386 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2387 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
2388 croak "Unable to parse date: $date\n";
2389 "+0000 $Y-$m-$d $H:$M:$S";
2390 }
2391
2392 sub check_author {
2393 my ($author) = @_;
2394 if (!defined $author || length $author == 0) {
2395 $author = '(no author)';
2396 } elsif (defined $::_authors && ! defined $::users{$author}) {
2397 die "Author: $author not defined in $::_authors file\n";
2398 }
2399 $author;
2400 }
2401
2402 sub make_log_entry {
2403 my ($self, $rev, $parents, $ed) = @_;
2404 my $untracked = $self->get_untracked($ed);
2405
2406 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
2407 print $un "r$rev\n" or croak $!;
2408 print $un $_, "\n" foreach @$untracked;
2409 my %log_entry = ( parents => $parents || [], revision => $rev,
2410 log => '');
2411
2412 my $headrev;
2413 my $logged = delete $self->{logged_rev_props};
2414 if (!$logged || $self->{-want_revprops}) {
2415 my $rp = $self->ra->rev_proplist($rev);
2416 foreach (sort keys %$rp) {
2417 my $v = $rp->{$_};
2418 if (/^svn:(author|date|log)$/) {
2419 $log_entry{$1} = $v;
2420 } elsif ($_ eq 'svm:headrev') {
2421 $headrev = $v;
2422 } else {
2423 print $un " rev_prop: ", uri_encode($_), ' ',
2424 uri_encode($v), "\n";
2425 }
2426 }
2427 } else {
2428 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
2429 }
2430 close $un or croak $!;
2431
2432 $log_entry{date} = parse_svn_date($log_entry{date});
2433 $log_entry{log} .= "\n";
2434 my $author = $log_entry{author} = check_author($log_entry{author});
2435 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
2436 : ($author, undef);
2437
2438 my ($commit_name, $commit_email) = ($name, $email);
2439 if ($_use_log_author) {
2440 my $name_field;
2441 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
2442 $name_field = $1;
2443 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
2444 $name_field = $1;
2445 }
2446 if (!defined $name_field) {
2447 if (!defined $email) {
2448 $email = $name;
2449 }
2450 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
2451 ($name, $email) = ($1, $2);
2452 } elsif ($name_field =~ /(.*)@/) {
2453 ($name, $email) = ($1, $name_field);
2454 } else {
2455 ($name, $email) = ($name_field, $name_field);
2456 }
2457 }
2458 if (defined $headrev && $self->use_svm_props) {
2459 if ($self->rewrite_root) {
2460 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
2461 "options set!\n";
2462 }
2463 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
2464 # we don't want "SVM: initializing mirror for junk" ...
2465 return undef if $r == 0;
2466 my $svm = $self->svm;
2467 if ($uuid ne $svm->{uuid}) {
2468 die "UUID mismatch on SVM path:\n",
2469 "expected: $svm->{uuid}\n",
2470 " got: $uuid\n";
2471 }
2472 my $full_url = $self->full_url;
2473 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
2474 die "Failed to replace '$svm->{replace}' with ",
2475 "'$svm->{source}' in $full_url\n";
2476 # throw away username for storing in records
2477 remove_username($full_url);
2478 $log_entry{metadata} = "$full_url\@$r $uuid";
2479 $log_entry{svm_revision} = $r;
2480 $email ||= "$author\@$uuid";
2481 $commit_email ||= "$author\@$uuid";
2482 } elsif ($self->use_svnsync_props) {
2483 my $full_url = $self->svnsync->{url};
2484 $full_url .= "/$self->{path}" if length $self->{path};
2485 remove_username($full_url);
2486 my $uuid = $self->svnsync->{uuid};
2487 $log_entry{metadata} = "$full_url\@$rev $uuid";
2488 $email ||= "$author\@$uuid";
2489 $commit_email ||= "$author\@$uuid";
2490 } else {
2491 my $url = $self->metadata_url;
2492 remove_username($url);
2493 $log_entry{metadata} = "$url\@$rev " .
2494 $self->ra->get_uuid;
2495 $email ||= "$author\@" . $self->ra->get_uuid;
2496 $commit_email ||= "$author\@" . $self->ra->get_uuid;
2497 }
2498 $log_entry{name} = $name;
2499 $log_entry{email} = $email;
2500 $log_entry{commit_name} = $commit_name;
2501 $log_entry{commit_email} = $commit_email;
2502 \%log_entry;
2503 }
2504
2505 sub fetch {
2506 my ($self, $min_rev, $max_rev, @parents) = @_;
2507 my ($last_rev, $last_commit) = $self->last_rev_commit;
2508 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
2509 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
2510 }
2511
2512 sub set_tree_cb {
2513 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2514 $self->{inject_parents} = { $rev => $tree };
2515 $self->fetch(undef, undef);
2516 }
2517
2518 sub set_tree {
2519 my ($self, $tree) = (shift, shift);
2520 my $log_entry = ::get_commit_entry($tree);
2521 unless ($self->{last_rev}) {
2522 fatal("Must have an existing revision to commit");
2523 }
2524 my %ed_opts = ( r => $self->{last_rev},
2525 log => $log_entry->{log},
2526 ra => $self->ra,
2527 tree_a => $self->{last_commit},
2528 tree_b => $tree,
2529 editor_cb => sub {
2530 $self->set_tree_cb($log_entry, $tree, @_) },
2531 svn_path => $self->{path} );
2532 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
2533 print "No changes\nr$self->{last_rev} = $tree\n";
2534 }
2535 }
2536
2537 sub rebuild_from_rev_db {
2538 my ($self, $path) = @_;
2539 my $r = -1;
2540 open my $fh, '<', $path or croak "open: $!";
2541 binmode $fh or croak "binmode: $!";
2542 while (<$fh>) {
2543 length($_) == 41 or croak "inconsistent size in ($_) != 41";
2544 chomp($_);
2545 ++$r;
2546 next if $_ eq ('0' x 40);
2547 $self->rev_map_set($r, $_);
2548 print "r$r = $_\n";
2549 }
2550 close $fh or croak "close: $!";
2551 unlink $path or croak "unlink: $!";
2552 }
2553
2554 sub rebuild {
2555 my ($self) = @_;
2556 my $map_path = $self->map_path;
2557 return if (-e $map_path && ! -z $map_path);
2558 return unless ::verify_ref($self->refname.'^0');
2559 if ($self->use_svm_props || $self->no_metadata) {
2560 my $rev_db = $self->rev_db_path;
2561 $self->rebuild_from_rev_db($rev_db);
2562 if ($self->use_svm_props) {
2563 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
2564 $self->rebuild_from_rev_db($svm_rev_db);
2565 }
2566 $self->unlink_rev_db_symlink;
2567 return;
2568 }
2569 print "Rebuilding $map_path ...\n";
2570 my ($log, $ctx) =
2571 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
2572 $self->refname, '--');
2573 my $metadata_url = $self->metadata_url;
2574 remove_username($metadata_url);
2575 my $svn_uuid = $self->ra_uuid;
2576 my $c;
2577 while (<$log>) {
2578 if ( m{^commit ($::sha1)$} ) {
2579 $c = $1;
2580 next;
2581 }
2582 next unless s{^\s*(git-svn-id:)}{$1};
2583 my ($url, $rev, $uuid) = ::extract_metadata($_);
2584 remove_username($url);
2585
2586 # ignore merges (from set-tree)
2587 next if (!defined $rev || !$uuid);
2588
2589 # if we merged or otherwise started elsewhere, this is
2590 # how we break out of it
2591 if (($uuid ne $svn_uuid) ||
2592 ($metadata_url && $url && ($url ne $metadata_url))) {
2593 next;
2594 }
2595
2596 $self->rev_map_set($rev, $c);
2597 print "r$rev = $c\n";
2598 }
2599 command_close_pipe($log, $ctx);
2600 print "Done rebuilding $map_path\n";
2601 my $rev_db_path = $self->rev_db_path;
2602 if (-f $self->rev_db_path) {
2603 unlink $self->rev_db_path or croak "unlink: $!";
2604 }
2605 $self->unlink_rev_db_symlink;
2606 }
2607
2608 # rev_map:
2609 # Tie::File seems to be prone to offset errors if revisions get sparse,
2610 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
2611 # one of my favorite modules is out :< Next up would be one of the DBM
2612 # modules, but I'm not sure which is most portable...
2613 #
2614 # This is the replacement for the rev_db format, which was too big
2615 # and inefficient for large repositories with a lot of sparse history
2616 # (mainly tags)
2617 #
2618 # The format is this:
2619 # - 24 bytes for every record,
2620 # * 4 bytes for the integer representing an SVN revision number
2621 # * 20 bytes representing the sha1 of a git commit
2622 # - No empty padding records like the old format
2623 # (except the last record, which can be overwritten)
2624 # - new records are written append-only since SVN revision numbers
2625 # increase monotonically
2626 # - lookups on SVN revision number are done via a binary search
2627 # - Piping the file to xxd -c24 is a good way of dumping it for
2628 # viewing or editing (piped back through xxd -r), should the need
2629 # ever arise.
2630 # - The last record can be padding revision with an all-zero sha1
2631 # This is used to optimize fetch performance when using multiple
2632 # "fetch" directives in .git/config
2633 #
2634 # These files are disposable unless noMetadata or useSvmProps is set
2635
2636 sub _rev_map_set {
2637 my ($fh, $rev, $commit) = @_;
2638
2639 binmode $fh or croak "binmode: $!";
2640 my $size = (stat($fh))[7];
2641 ($size % 24) == 0 or croak "inconsistent size: $size";
2642
2643 my $wr_offset = 0;
2644 if ($size > 0) {
2645 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2646 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
2647 $read == 24 or croak "read only $read bytes (!= 24)";
2648 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
2649 if ($last_commit eq ('0' x40)) {
2650 if ($size >= 48) {
2651 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2652 $read = sysread($fh, $buf, 24) or
2653 croak "read: $!";
2654 $read == 24 or
2655 croak "read only $read bytes (!= 24)";
2656 ($last_rev, $last_commit) =
2657 unpack(rev_map_fmt, $buf);
2658 if ($last_commit eq ('0' x40)) {
2659 croak "inconsistent .rev_map\n";
2660 }
2661 }
2662 if ($last_rev >= $rev) {
2663 croak "last_rev is higher!: $last_rev >= $rev";
2664 }
2665 $wr_offset = -24;
2666 }
2667 }
2668 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
2669 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
2670 croak "write: $!";
2671 }
2672
2673 sub mkfile {
2674 my ($path) = @_;
2675 unless (-e $path) {
2676 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2677 mkpath([$dir]) unless -d $dir;
2678 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2679 close $fh or die "Couldn't close (create) $path: $!\n";
2680 }
2681 }
2682
2683 sub rev_map_set {
2684 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2685 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2686 my $db = $self->map_path($uuid);
2687 my $db_lock = "$db.lock";
2688 my $sig;
2689 if ($update_ref) {
2690 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2691 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
2692 }
2693 mkfile($db);
2694
2695 $LOCKFILES{$db_lock} = 1;
2696 my $sync;
2697 # both of these options make our .rev_db file very, very important
2698 # and we can't afford to lose it because rebuild() won't work
2699 if ($self->use_svm_props || $self->no_metadata) {
2700 $sync = 1;
2701 copy($db, $db_lock) or die "rev_map_set(@_): ",
2702 "Failed to copy: ",
2703 "$db => $db_lock ($!)\n";
2704 } else {
2705 rename $db, $db_lock or die "rev_map_set(@_): ",
2706 "Failed to rename: ",
2707 "$db => $db_lock ($!)\n";
2708 }
2709
2710 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
2711 or croak "Couldn't open $db_lock: $!\n";
2712 _rev_map_set($fh, $rev, $commit);
2713 if ($sync) {
2714 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2715 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2716 }
2717 close $fh or croak $!;
2718 if ($update_ref) {
2719 $_head = $self;
2720 command_noisy('update-ref', '-m', "r$rev",
2721 $self->refname, $commit);
2722 }
2723 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
2724 "$db_lock => $db ($!)\n";
2725 delete $LOCKFILES{$db_lock};
2726 if ($update_ref) {
2727 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2728 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2729 kill $sig, $$ if defined $sig;
2730 }
2731 }
2732
2733 # If want_commit, this will return an array of (rev, commit) where
2734 # commit _must_ be a valid commit in the archive.
2735 # Otherwise, it'll return the max revision (whether or not the
2736 # commit is valid or just a 0x40 placeholder).
2737 sub rev_map_max {
2738 my ($self, $want_commit) = @_;
2739 $self->rebuild;
2740 my $map_path = $self->map_path;
2741 stat $map_path or return $want_commit ? (0, undef) : 0;
2742 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2743 binmode $fh or croak "binmode: $!";
2744 my $size = (stat($fh))[7];
2745 ($size % 24) == 0 or croak "inconsistent size: $size";
2746
2747 if ($size == 0) {
2748 close $fh or croak "close: $!";
2749 return $want_commit ? (0, undef) : 0;
2750 }
2751
2752 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2753 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2754 my ($r, $c) = unpack(rev_map_fmt, $buf);
2755 if ($want_commit && $c eq ('0' x40)) {
2756 if ($size < 48) {
2757 return $want_commit ? (0, undef) : 0;
2758 }
2759 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2760 sysread($fh, $buf, 24) == 24 or croak "read: $!";
2761 ($r, $c) = unpack(rev_map_fmt, $buf);
2762 if ($c eq ('0'x40)) {
2763 croak "Penultimate record is all-zeroes in $map_path";
2764 }
2765 }
2766 close $fh or croak "close: $!";
2767 $want_commit ? ($r, $c) : $r;
2768 }
2769
2770 sub rev_map_get {
2771 my ($self, $rev, $uuid) = @_;
2772 my $map_path = $self->map_path($uuid);
2773 return undef unless -e $map_path;
2774
2775 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2776 binmode $fh or croak "binmode: $!";
2777 my $size = (stat($fh))[7];
2778 ($size % 24) == 0 or croak "inconsistent size: $size";
2779
2780 if ($size == 0) {
2781 close $fh or croak "close: $fh";
2782 return undef;
2783 }
2784
2785 my ($l, $u) = (0, $size - 24);
2786 my ($r, $c, $buf);
2787
2788 while ($l <= $u) {
2789 my $i = int(($l/24 + $u/24) / 2) * 24;
2790 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
2791 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2792 my ($r, $c) = unpack('NH40', $buf);
2793
2794 if ($r < $rev) {
2795 $l = $i + 24;
2796 } elsif ($r > $rev) {
2797 $u = $i - 24;
2798 } else { # $r == $rev
2799 close($fh) or croak "close: $!";
2800 return $c eq ('0' x 40) ? undef : $c;
2801 }
2802 }
2803 close($fh) or croak "close: $!";
2804 undef;
2805 }
2806
2807 # Finds the first svn revision that exists on (if $eq_ok is true) or
2808 # before $rev for the current branch. It will not search any lower
2809 # than $min_rev. Returns the git commit hash and svn revision number
2810 # if found, else (undef, undef).
2811 sub find_rev_before {
2812 my ($self, $rev, $eq_ok, $min_rev) = @_;
2813 --$rev unless $eq_ok;
2814 $min_rev ||= 1;
2815 while ($rev >= $min_rev) {
2816 if (my $c = $self->rev_map_get($rev)) {
2817 return ($rev, $c);
2818 }
2819 --$rev;
2820 }
2821 return (undef, undef);
2822 }
2823
2824 # Finds the first svn revision that exists on (if $eq_ok is true) or
2825 # after $rev for the current branch. It will not search any higher
2826 # than $max_rev. Returns the git commit hash and svn revision number
2827 # if found, else (undef, undef).
2828 sub find_rev_after {
2829 my ($self, $rev, $eq_ok, $max_rev) = @_;
2830 ++$rev unless $eq_ok;
2831 $max_rev ||= $self->rev_map_max;
2832 while ($rev <= $max_rev) {
2833 if (my $c = $self->rev_map_get($rev)) {
2834 return ($rev, $c);
2835 }
2836 ++$rev;
2837 }
2838 return (undef, undef);
2839 }
2840
2841 sub _new {
2842 my ($class, $repo_id, $ref_id, $path) = @_;
2843 unless (defined $repo_id && length $repo_id) {
2844 $repo_id = $Git::SVN::default_repo_id;
2845 }
2846 unless (defined $ref_id && length $ref_id) {
2847 $_[2] = $ref_id = $Git::SVN::default_ref_id;
2848 }
2849 $_[1] = $repo_id;
2850 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2851 $_[3] = $path = '' unless (defined $path);
2852 mkpath(["$ENV{GIT_DIR}/svn"]);
2853 bless {
2854 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2855 path => $path, config => "$ENV{GIT_DIR}/svn/config",
2856 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
2857 }
2858
2859 # for read-only access of old .rev_db formats
2860 sub unlink_rev_db_symlink {
2861 my ($self) = @_;
2862 my $link = $self->rev_db_path;
2863 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
2864 if (-l $link) {
2865 unlink $link or croak "unlink: $link failed!";
2866 }
2867 }
2868
2869 sub rev_db_path {
2870 my ($self, $uuid) = @_;
2871 my $db_path = $self->map_path($uuid);
2872 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
2873 or croak "map_path: $db_path does not contain '/.rev_map.' !";
2874 $db_path;
2875 }
2876
2877 # the new replacement for .rev_db
2878 sub map_path {
2879 my ($self, $uuid) = @_;
2880 $uuid ||= $self->ra_uuid;
2881 "$self->{map_root}.$uuid";
2882 }
2883
2884 sub uri_encode {
2885 my ($f) = @_;
2886 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2887 $f
2888 }
2889
2890 sub remove_username {
2891 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
2892 }
2893
2894 package Git::SVN::Prompt;
2895 use strict;
2896 use warnings;
2897 require SVN::Core;
2898 use vars qw/$_no_auth_cache $_username/;
2899
2900 sub simple {
2901 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2902 $may_save = undef if $_no_auth_cache;
2903 $default_username = $_username if defined $_username;
2904 if (defined $default_username && length $default_username) {
2905 if (defined $realm && length $realm) {
2906 print STDERR "Authentication realm: $realm\n";
2907 STDERR->flush;
2908 }
2909 $cred->username($default_username);
2910 } else {
2911 username($cred, $realm, $may_save, $pool);
2912 }
2913 $cred->password(_read_password("Password for '" .
2914 $cred->username . "': ", $realm));
2915 $cred->may_save($may_save);
2916 $SVN::_Core::SVN_NO_ERROR;
2917 }
2918
2919 sub ssl_server_trust {
2920 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2921 $may_save = undef if $_no_auth_cache;
2922 print STDERR "Error validating server certificate for '$realm':\n";
2923 {
2924 no warnings 'once';
2925 # All variables SVN::Auth::SSL::* are used only once,
2926 # so we're shutting up Perl warnings about this.
2927 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2928 print STDERR " - The certificate is not issued ",
2929 "by a trusted authority. Use the\n",
2930 " fingerprint to validate ",
2931 "the certificate manually!\n";
2932 }
2933 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2934 print STDERR " - The certificate hostname ",
2935 "does not match.\n";
2936 }
2937 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2938 print STDERR " - The certificate is not yet valid.\n";
2939 }
2940 if ($failures & $SVN::Auth::SSL::EXPIRED) {
2941 print STDERR " - The certificate has expired.\n";
2942 }
2943 if ($failures & $SVN::Auth::SSL::OTHER) {
2944 print STDERR " - The certificate has ",
2945 "an unknown error.\n";
2946 }
2947 } # no warnings 'once'
2948 printf STDERR
2949 "Certificate information:\n".
2950 " - Hostname: %s\n".
2951 " - Valid: from %s until %s\n".
2952 " - Issuer: %s\n".
2953 " - Fingerprint: %s\n",
2954 map $cert_info->$_, qw(hostname valid_from valid_until
2955 issuer_dname fingerprint);
2956 my $choice;
2957 prompt:
2958 print STDERR $may_save ?
2959 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
2960 "(R)eject or accept (t)emporarily? ";
2961 STDERR->flush;
2962 $choice = lc(substr(<STDIN> || 'R', 0, 1));
2963 if ($choice =~ /^t$/i) {
2964 $cred->may_save(undef);
2965 } elsif ($choice =~ /^r$/i) {
2966 return -1;
2967 } elsif ($may_save && $choice =~ /^p$/i) {
2968 $cred->may_save($may_save);
2969 } else {
2970 goto prompt;
2971 }
2972 $cred->accepted_failures($failures);
2973 $SVN::_Core::SVN_NO_ERROR;
2974 }
2975
2976 sub ssl_client_cert {
2977 my ($cred, $realm, $may_save, $pool) = @_;
2978 $may_save = undef if $_no_auth_cache;
2979 print STDERR "Client certificate filename: ";
2980 STDERR->flush;
2981 chomp(my $filename = <STDIN>);
2982 $cred->cert_file($filename);
2983 $cred->may_save($may_save);
2984 $SVN::_Core::SVN_NO_ERROR;
2985 }
2986
2987 sub ssl_client_cert_pw {
2988 my ($cred, $realm, $may_save, $pool) = @_;
2989 $may_save = undef if $_no_auth_cache;
2990 $cred->password(_read_password("Password: ", $realm));
2991 $cred->may_save($may_save);
2992 $SVN::_Core::SVN_NO_ERROR;
2993 }
2994
2995 sub username {
2996 my ($cred, $realm, $may_save, $pool) = @_;
2997 $may_save = undef if $_no_auth_cache;
2998 if (defined $realm && length $realm) {
2999 print STDERR "Authentication realm: $realm\n";
3000 }
3001 my $username;
3002 if (defined $_username) {
3003 $username = $_username;
3004 } else {
3005 print STDERR "Username: ";
3006 STDERR->flush;
3007 chomp($username = <STDIN>);
3008 }
3009 $cred->username($username);
3010 $cred->may_save($may_save);
3011 $SVN::_Core::SVN_NO_ERROR;
3012 }
3013
3014 sub _read_password {
3015 my ($prompt, $realm) = @_;
3016 print STDERR $prompt;
3017 STDERR->flush;
3018 require Term::ReadKey;
3019 Term::ReadKey::ReadMode('noecho');
3020 my $password = '';
3021 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3022 last if $key =~ /[\012\015]/; # \n\r
3023 $password .= $key;
3024 }
3025 Term::ReadKey::ReadMode('restore');
3026 print STDERR "\n";
3027 STDERR->flush;
3028 $password;
3029 }
3030
3031 package SVN::Git::Fetcher;
3032 use vars qw/@ISA/;
3033 use strict;
3034 use warnings;
3035 use Carp qw/croak/;
3036 use File::Temp qw/tempfile/;
3037 use IO::File qw//;
3038
3039 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3040 sub new {
3041 my ($class, $git_svn) = @_;
3042 my $self = SVN::Delta::Editor->new;
3043 bless $self, $class;
3044 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
3045 $self->{empty} = {};
3046 $self->{dir_prop} = {};
3047 $self->{file_prop} = {};
3048 $self->{absent_dir} = {};
3049 $self->{absent_file} = {};
3050 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3051 $self;
3052 }
3053
3054 sub set_path_strip {
3055 my ($self, $path) = @_;
3056 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3057 }
3058
3059 sub open_root {
3060 { path => '' };
3061 }
3062
3063 sub open_directory {
3064 my ($self, $path, $pb, $rev) = @_;
3065 { path => $path };
3066 }
3067
3068 sub git_path {
3069 my ($self, $path) = @_;
3070 if ($self->{path_strip}) {
3071 $path =~ s!$self->{path_strip}!! or
3072 die "Failed to strip path '$path' ($self->{path_strip})\n";
3073 }
3074 $path;
3075 }
3076
3077 sub delete_entry {
3078 my ($self, $path, $rev, $pb) = @_;
3079
3080 my $gpath = $self->git_path($path);
3081 return undef if ($gpath eq '');
3082
3083 # remove entire directories.
3084 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
3085 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3086 -r --name-only -z/,
3087 $self->{c}, '--', $gpath);
3088 local $/ = "\0";
3089 while (<$ls>) {
3090 chomp;
3091 $self->{gii}->remove($_);
3092 print "\tD\t$_\n" unless $::_q;
3093 }
3094 print "\tD\t$gpath/\n" unless $::_q;
3095 command_close_pipe($ls, $ctx);
3096 $self->{empty}->{$path} = 0
3097 } else {
3098 $self->{gii}->remove($gpath);
3099 print "\tD\t$gpath\n" unless $::_q;
3100 }
3101 undef;
3102 }
3103
3104 sub open_file {
3105 my ($self, $path, $pb, $rev) = @_;
3106 my $gpath = $self->git_path($path);
3107 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
3108 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
3109 unless (defined $mode && defined $blob) {
3110 die "$path was not found in commit $self->{c} (r$rev)\n";
3111 }
3112 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3113 pool => SVN::Pool->new, action => 'M' };
3114 }
3115
3116 sub add_file {
3117 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3118 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3119 delete $self->{empty}->{$dir};
3120 { path => $path, mode_a => 100644, mode_b => 100644,
3121 pool => SVN::Pool->new, action => 'A' };
3122 }
3123
3124 sub add_directory {
3125 my ($self, $path, $cp_path, $cp_rev) = @_;
3126 my $gpath = $self->git_path($path);
3127 if ($gpath eq '') {
3128 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3129 -r --name-only -z/,
3130 $self->{c});
3131 local $/ = "\0";
3132 while (<$ls>) {
3133 chomp;
3134 $self->{gii}->remove($_);
3135 print "\tD\t$_\n" unless $::_q;
3136 }
3137 command_close_pipe($ls, $ctx);
3138 $self->{empty}->{$path} = 0;
3139 }
3140 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3141 delete $self->{empty}->{$dir};
3142 $self->{empty}->{$path} = 1;
3143 { path => $path };
3144 }
3145
3146 sub change_dir_prop {
3147 my ($self, $db, $prop, $value) = @_;
3148 $self->{dir_prop}->{$db->{path}} ||= {};
3149 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
3150 undef;
3151 }
3152
3153 sub absent_directory {
3154 my ($self, $path, $pb) = @_;
3155 $self->{absent_dir}->{$pb->{path}} ||= [];
3156 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
3157 undef;
3158 }
3159
3160 sub absent_file {
3161 my ($self, $path, $pb) = @_;
3162 $self->{absent_file}->{$pb->{path}} ||= [];
3163 push @{$self->{absent_file}->{$pb->{path}}}, $path;
3164 undef;
3165 }
3166
3167 sub change_file_prop {
3168 my ($self, $fb, $prop, $value) = @_;
3169 if ($prop eq 'svn:executable') {
3170 if ($fb->{mode_b} != 120000) {
3171 $fb->{mode_b} = defined $value ? 100755 : 100644;
3172 }
3173 } elsif ($prop eq 'svn:special') {
3174 $fb->{mode_b} = defined $value ? 120000 : 100644;
3175 } else {
3176 $self->{file_prop}->{$fb->{path}} ||= {};
3177 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
3178 }
3179 undef;
3180 }
3181
3182 sub apply_textdelta {
3183 my ($self, $fb, $exp) = @_;
3184 my $fh = IO::File->new_tmpfile;
3185 $fh->autoflush(1);
3186 # $fh gets auto-closed() by SVN::TxDelta::apply(),
3187 # (but $base does not,) so dup() it for reading in close_file
3188 open my $dup, '<&', $fh or croak $!;
3189 my $base = IO::File->new_tmpfile;
3190 $base->autoflush(1);
3191 if ($fb->{blob}) {
3192 print $base 'link ' if ($fb->{mode_a} == 120000);
3193 my $size = $::_repository->cat_blob($fb->{blob}, $base);
3194 die "Failed to read object $fb->{blob}" if ($size < 0);
3195
3196 if (defined $exp) {
3197 seek $base, 0, 0 or croak $!;
3198 my $got = ::md5sum($base);
3199 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
3200 "expected: $exp\n",
3201 " got: $got\n" if ($got ne $exp);
3202 }
3203 }
3204 seek $base, 0, 0 or croak $!;
3205 $fb->{fh} = $dup;
3206 $fb->{base} = $base;
3207 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
3208 }
3209
3210 sub close_file {
3211 my ($self, $fb, $exp) = @_;
3212 my $hash;
3213 my $path = $self->git_path($fb->{path});
3214 if (my $fh = $fb->{fh}) {
3215 if (defined $exp) {
3216 seek($fh, 0, 0) or croak $!;
3217 my $got = ::md5sum($fh);
3218 if ($got ne $exp) {
3219 die "Checksum mismatch: $path\n",
3220 "expected: $exp\n got: $got\n";
3221 }
3222 }
3223 sysseek($fh, 0, 0) or croak $!;
3224 if ($fb->{mode_b} == 120000) {
3225 eval {
3226 sysread($fh, my $buf, 5) == 5 or croak $!;
3227 $buf eq 'link ' or die "$path has mode 120000",
3228 " but is not a link";
3229 };
3230 if ($@) {
3231 warn "$@\n";
3232 sysseek($fh, 0, 0) or croak $!;
3233 }
3234 }
3235
3236 my ($tmp_fh, $tmp_filename) = File::Temp::tempfile(UNLINK => 1);
3237 my $result;
3238 while ($result = sysread($fh, my $string, 1024)) {
3239 my $wrote = syswrite($tmp_fh, $string, $result);
3240 defined($wrote) && $wrote == $result
3241 or croak("write $tmp_filename: $!\n");
3242 }
3243 defined $result or croak $!;
3244 close $tmp_fh or croak $!;
3245
3246 close $fh or croak $!;
3247
3248 $hash = $::_repository->hash_and_insert_object($tmp_filename);
3249 unlink($tmp_filename);
3250 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
3251 close $fb->{base} or croak $!;
3252 } else {
3253 $hash = $fb->{blob} or die "no blob information\n";
3254 }
3255 $fb->{pool}->clear;
3256 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
3257 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
3258 undef;
3259 }
3260
3261 sub abort_edit {
3262 my $self = shift;
3263 $self->{nr} = $self->{gii}->{nr};
3264 delete $self->{gii};
3265 $self->SUPER::abort_edit(@_);
3266 }
3267
3268 sub close_edit {
3269 my $self = shift;
3270 $self->{git_commit_ok} = 1;
3271 $self->{nr} = $self->{gii}->{nr};
3272 delete $self->{gii};
3273 $self->SUPER::close_edit(@_);
3274 }
3275
3276 package SVN::Git::Editor;
3277 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
3278 use strict;
3279 use warnings;
3280 use Carp qw/croak/;
3281 use IO::File;
3282
3283 sub new {
3284 my ($class, $opts) = @_;
3285 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
3286 die "$_ required!\n" unless (defined $opts->{$_});
3287 }
3288
3289 my $pool = SVN::Pool->new;
3290 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
3291 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
3292 $opts->{r}, $mods);
3293
3294 # $opts->{ra} functions should not be used after this:
3295 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
3296 $opts->{editor_cb}, $pool);
3297 my $self = SVN::Delta::Editor->new(@ce, $pool);
3298 bless $self, $class;
3299 foreach (qw/svn_path r tree_a tree_b/) {
3300 $self->{$_} = $opts->{$_};
3301 }
3302 $self->{url} = $opts->{ra}->{url};
3303 $self->{mods} = $mods;
3304 $self->{types} = $types;
3305 $self->{pool} = $pool;
3306 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
3307 $self->{rm} = { };
3308 $self->{path_prefix} = length $self->{svn_path} ?
3309 "$self->{svn_path}/" : '';
3310 return $self;
3311 }
3312
3313 sub generate_diff {
3314 my ($tree_a, $tree_b) = @_;
3315 my @diff_tree = qw(diff-tree -z -r);
3316 if ($_cp_similarity) {
3317 push @diff_tree, "-C$_cp_similarity";
3318 } else {
3319 push @diff_tree, '-C';
3320 }
3321 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
3322 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
3323 push @diff_tree, $tree_a, $tree_b;
3324 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
3325 local $/ = "\0";
3326 my $state = 'meta';
3327 my @mods;
3328 while (<$diff_fh>) {
3329 chomp $_; # this gets rid of the trailing "\0"
3330 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
3331 $::sha1\s($::sha1)\s
3332 ([MTCRAD])\d*$/xo) {
3333 push @mods, { mode_a => $1, mode_b => $2,
3334 sha1_b => $3, chg => $4 };
3335 if ($4 =~ /^(?:C|R)$/) {
3336 $state = 'file_a';
3337 } else {
3338 $state = 'file_b';
3339 }
3340 } elsif ($state eq 'file_a') {
3341 my $x = $mods[$#mods] or croak "Empty array\n";
3342 if ($x->{chg} !~ /^(?:C|R)$/) {
3343 croak "Error parsing $_, $x->{chg}\n";
3344 }
3345 $x->{file_a} = $_;
3346 $state = 'file_b';
3347 } elsif ($state eq 'file_b') {
3348 my $x = $mods[$#mods] or croak "Empty array\n";
3349 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
3350 croak "Error parsing $_, $x->{chg}\n";
3351 }
3352 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
3353 croak "Error parsing $_, $x->{chg}\n";
3354 }
3355 $x->{file_b} = $_;
3356 $state = 'meta';
3357 } else {
3358 croak "Error parsing $_\n";
3359 }
3360 }
3361 command_close_pipe($diff_fh, $ctx);
3362 \@mods;
3363 }
3364
3365 sub check_diff_paths {
3366 my ($ra, $pfx, $rev, $mods) = @_;
3367 my %types;
3368 $pfx .= '/' if length $pfx;
3369
3370 sub type_diff_paths {
3371 my ($ra, $types, $path, $rev) = @_;
3372 my @p = split m#/+#, $path;
3373 my $c = shift @p;
3374 unless (defined $types->{$c}) {
3375 $types->{$c} = $ra->check_path($c, $rev);
3376 }
3377 while (@p) {
3378 $c .= '/' . shift @p;
3379 next if defined $types->{$c};
3380 $types->{$c} = $ra->check_path($c, $rev);
3381 }
3382 }
3383
3384 foreach my $m (@$mods) {
3385 foreach my $f (qw/file_a file_b/) {
3386 next unless defined $m->{$f};
3387 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
3388 if (length $pfx.$dir && ! defined $types{$dir}) {
3389 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
3390 }
3391 }
3392 }
3393 \%types;
3394 }
3395
3396 sub split_path {
3397 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
3398 }
3399
3400 sub repo_path {
3401 my ($self, $path) = @_;
3402 $self->{path_prefix}.(defined $path ? $path : '');
3403 }
3404
3405 sub url_path {
3406 my ($self, $path) = @_;
3407 if ($self->{url} =~ m#^https?://#) {
3408 $path =~ s/([^a-zA-Z0-9_.-])/uc sprintf("%%%02x",ord($1))/eg;
3409 }
3410 $self->{url} . '/' . $self->repo_path($path);
3411 }
3412
3413 sub rmdirs {
3414 my ($self) = @_;
3415 my $rm = $self->{rm};
3416 delete $rm->{''}; # we never delete the url we're tracking
3417 return unless %$rm;
3418
3419 foreach (keys %$rm) {
3420 my @d = split m#/#, $_;
3421 my $c = shift @d;
3422 $rm->{$c} = 1;
3423 while (@d) {
3424 $c .= '/' . shift @d;
3425 $rm->{$c} = 1;
3426 }
3427 }
3428 delete $rm->{$self->{svn_path}};
3429 delete $rm->{''}; # we never delete the url we're tracking
3430 return unless %$rm;
3431
3432 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
3433 $self->{tree_b});
3434 local $/ = "\0";
3435 while (<$fh>) {
3436 chomp;
3437 my @dn = split m#/#, $_;
3438 while (pop @dn) {
3439 delete $rm->{join '/', @dn};
3440 }
3441 unless (%$rm) {
3442 close $fh;
3443 return;
3444 }
3445 }
3446 command_close_pipe($fh, $ctx);
3447
3448 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
3449 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
3450 $self->close_directory($bat->{$d}, $p);
3451 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
3452 print "\tD+\t$d/\n" unless $::_q;
3453 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
3454 delete $bat->{$d};
3455 }
3456 }
3457
3458 sub open_or_add_dir {
3459 my ($self, $full_path, $baton) = @_;
3460 my $t = $self->{types}->{$full_path};
3461 if (!defined $t) {
3462 die "$full_path not known in r$self->{r} or we have a bug!\n";
3463 }
3464 {
3465 no warnings 'once';
3466 # SVN::Node::none and SVN::Node::file are used only once,
3467 # so we're shutting up Perl's warnings about them.
3468 if ($t == $SVN::Node::none) {
3469 return $self->add_directory($full_path, $baton,
3470 undef, -1, $self->{pool});
3471 } elsif ($t == $SVN::Node::dir) {
3472 return $self->open_directory($full_path, $baton,
3473 $self->{r}, $self->{pool});
3474 } # no warnings 'once'
3475 print STDERR "$full_path already exists in repository at ",
3476 "r$self->{r} and it is not a directory (",
3477 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
3478 } # no warnings 'once'
3479 exit 1;
3480 }
3481
3482 sub ensure_path {
3483 my ($self, $path) = @_;
3484 my $bat = $self->{bat};
3485 my $repo_path = $self->repo_path($path);
3486 return $bat->{''} unless (length $repo_path);
3487 my @p = split m#/+#, $repo_path;
3488 my $c = shift @p;
3489 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
3490 while (@p) {
3491 my $c0 = $c;
3492 $c .= '/' . shift @p;
3493 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
3494 }
3495 return $bat->{$c};
3496 }
3497
3498 sub A {
3499 my ($self, $m) = @_;
3500 my ($dir, $file) = split_path($m->{file_b});
3501 my $pbat = $self->ensure_path($dir);
3502 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3503 undef, -1);
3504 print "\tA\t$m->{file_b}\n" unless $::_q;
3505 $self->chg_file($fbat, $m);
3506 $self->close_file($fbat,undef,$self->{pool});
3507 }
3508
3509 sub C {
3510 my ($self, $m) = @_;
3511 my ($dir, $file) = split_path($m->{file_b});
3512 my $pbat = $self->ensure_path($dir);
3513 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3514 $self->url_path($m->{file_a}), $self->{r});
3515 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3516 $self->chg_file($fbat, $m);
3517 $self->close_file($fbat,undef,$self->{pool});
3518 }
3519
3520 sub delete_entry {
3521 my ($self, $path, $pbat) = @_;
3522 my $rpath = $self->repo_path($path);
3523 my ($dir, $file) = split_path($rpath);
3524 $self->{rm}->{$dir} = 1;
3525 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
3526 }
3527
3528 sub R {
3529 my ($self, $m) = @_;
3530 my ($dir, $file) = split_path($m->{file_b});
3531 my $pbat = $self->ensure_path($dir);
3532 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3533 $self->url_path($m->{file_a}), $self->{r});
3534 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3535 $self->chg_file($fbat, $m);
3536 $self->close_file($fbat,undef,$self->{pool});
3537
3538 ($dir, $file) = split_path($m->{file_a});
3539 $pbat = $self->ensure_path($dir);
3540 $self->delete_entry($m->{file_a}, $pbat);
3541 }
3542
3543 sub M {
3544 my ($self, $m) = @_;
3545 my ($dir, $file) = split_path($m->{file_b});
3546 my $pbat = $self->ensure_path($dir);
3547 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
3548 $pbat,$self->{r},$self->{pool});
3549 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
3550 $self->chg_file($fbat, $m);
3551 $self->close_file($fbat,undef,$self->{pool});
3552 }
3553
3554 sub T { shift->M(@_) }
3555
3556 sub change_file_prop {
3557 my ($self, $fbat, $pname, $pval) = @_;
3558 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
3559 }
3560
3561 sub chg_file {
3562 my ($self, $fbat, $m) = @_;
3563 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
3564 $self->change_file_prop($fbat,'svn:executable','*');
3565 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
3566 $self->change_file_prop($fbat,'svn:executable',undef);
3567 }
3568 my $fh = IO::File->new_tmpfile or croak $!;
3569 if ($m->{mode_b} =~ /^120/) {
3570 print $fh 'link ' or croak $!;
3571 $self->change_file_prop($fbat,'svn:special','*');
3572 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
3573 $self->change_file_prop($fbat,'svn:special',undef);
3574 }
3575 my $size = $::_repository->cat_blob($m->{sha1_b}, $fh);
3576 croak "Failed to read object $m->{sha1_b}" if ($size < 0);
3577 $fh->flush == 0 or croak $!;
3578 seek $fh, 0, 0 or croak $!;
3579
3580 my $exp = ::md5sum($fh);
3581 seek $fh, 0, 0 or croak $!;
3582
3583 my $pool = SVN::Pool->new;
3584 my $atd = $self->apply_textdelta($fbat, undef, $pool);
3585 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
3586 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
3587 $pool->clear;
3588
3589 close $fh or croak $!;
3590 }
3591
3592 sub D {
3593 my ($self, $m) = @_;
3594 my ($dir, $file) = split_path($m->{file_b});
3595 my $pbat = $self->ensure_path($dir);
3596 print "\tD\t$m->{file_b}\n" unless $::_q;
3597 $self->delete_entry($m->{file_b}, $pbat);
3598 }
3599
3600 sub close_edit {
3601 my ($self) = @_;
3602 my ($p,$bat) = ($self->{pool}, $self->{bat});
3603 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
3604 next if $_ eq '';
3605 $self->close_directory($bat->{$_}, $p);
3606 }
3607 $self->close_directory($bat->{''}, $p);
3608 $self->SUPER::close_edit($p);
3609 $p->clear;
3610 }
3611
3612 sub abort_edit {
3613 my ($self) = @_;
3614 $self->SUPER::abort_edit($self->{pool});
3615 }
3616
3617 sub DESTROY {
3618 my $self = shift;
3619 $self->SUPER::DESTROY(@_);
3620 $self->{pool}->clear;
3621 }
3622
3623 # this drives the editor
3624 sub apply_diff {
3625 my ($self) = @_;
3626 my $mods = $self->{mods};
3627 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
3628 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
3629 my $f = $m->{chg};
3630 if (defined $o{$f}) {
3631 $self->$f($m);
3632 } else {
3633 fatal("Invalid change type: $f");
3634 }
3635 }
3636 $self->rmdirs if $_rmdir;
3637 if (@$mods == 0) {
3638 $self->abort_edit;
3639 } else {
3640 $self->close_edit;
3641 }
3642 return scalar @$mods;
3643 }
3644
3645 package Git::SVN::Ra;
3646 use vars qw/@ISA $config_dir $_log_window_size/;
3647 use strict;
3648 use warnings;
3649 my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
3650
3651 BEGIN {
3652 # enforce temporary pool usage for some simple functions
3653 no strict 'refs';
3654 for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root/) {
3655 my $SUPER = "SUPER::$f";
3656 *$f = sub {
3657 my $self = shift;
3658 my $pool = SVN::Pool->new;
3659 my @ret = $self->$SUPER(@_,$pool);
3660 $pool->clear;
3661 wantarray ? @ret : $ret[0];
3662 };
3663 }
3664 }
3665
3666 sub _auth_providers () {
3667 [
3668 SVN::Client::get_simple_provider(),
3669 SVN::Client::get_ssl_server_trust_file_provider(),
3670 SVN::Client::get_simple_prompt_provider(
3671 \&Git::SVN::Prompt::simple, 2),
3672 SVN::Client::get_ssl_client_cert_file_provider(),
3673 SVN::Client::get_ssl_client_cert_prompt_provider(
3674 \&Git::SVN::Prompt::ssl_client_cert, 2),
3675 SVN::Client::get_ssl_client_cert_pw_file_provider(),
3676 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
3677 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
3678 SVN::Client::get_username_provider(),
3679 SVN::Client::get_ssl_server_trust_prompt_provider(
3680 \&Git::SVN::Prompt::ssl_server_trust),
3681 SVN::Client::get_username_prompt_provider(
3682 \&Git::SVN::Prompt::username, 2)
3683 ]
3684 }
3685
3686 sub escape_uri_only {
3687 my ($uri) = @_;
3688 my @tmp;
3689 foreach (split m{/}, $uri) {
3690 s/([^\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
3691 push @tmp, $_;
3692 }
3693 join('/', @tmp);
3694 }
3695
3696 sub escape_url {
3697 my ($url) = @_;
3698 if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
3699 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
3700 $url = "$scheme://$domain$uri";
3701 }
3702 $url;
3703 }
3704
3705 sub new {
3706 my ($class, $url) = @_;
3707 $url =~ s!/+$!!;
3708 return $RA if ($RA && $RA->{url} eq $url);
3709
3710 SVN::_Core::svn_config_ensure($config_dir, undef);
3711 my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
3712 my $config = SVN::Core::config_get_config($config_dir);
3713 $RA = undef;
3714 my $dont_store_passwords = 1;
3715 my $conf_t = ${$config}{'config'};
3716 {
3717 no warnings 'once';
3718 # The usage of $SVN::_Core::SVN_CONFIG_* variables
3719 # produces warnings that variables are used only once.
3720 # I had not found the better way to shut them up, so
3721 # the warnings of type 'once' are disabled in this block.
3722 if (SVN::_Core::svn_config_get_bool($conf_t,
3723 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
3724 $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
3725 1) == 0) {
3726 SVN::_Core::svn_auth_set_parameter($baton,
3727 $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
3728 bless (\$dont_store_passwords, "_p_void"));
3729 }
3730 if (SVN::_Core::svn_config_get_bool($conf_t,
3731 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
3732 $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
3733 1) == 0) {
3734 $Git::SVN::Prompt::_no_auth_cache = 1;
3735 }
3736 } # no warnings 'once'
3737 my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
3738 config => $config,
3739 pool => SVN::Pool->new,
3740 auth_provider_callbacks => $callbacks);
3741 $self->{url} = $url;
3742 $self->{svn_path} = $url;
3743 $self->{repos_root} = $self->get_repos_root;
3744 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
3745 $self->{cache} = { check_path => { r => 0, data => {} },
3746 get_dir => { r => 0, data => {} } };
3747 $RA = bless $self, $class;
3748 }
3749
3750 sub check_path {
3751 my ($self, $path, $r) = @_;
3752 my $cache = $self->{cache}->{check_path};
3753 if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
3754 return $cache->{data}->{$path};
3755 }
3756 my $pool = SVN::Pool->new;
3757 my $t = $self->SUPER::check_path($path, $r, $pool);
3758 $pool->clear;
3759 if ($r != $cache->{r}) {
3760 %{$cache->{data}} = ();
3761 $cache->{r} = $r;
3762 }
3763 $cache->{data}->{$path} = $t;
3764 }
3765
3766 sub get_dir {
3767 my ($self, $dir, $r) = @_;
3768 my $cache = $self->{cache}->{get_dir};
3769 if ($r == $cache->{r}) {
3770 if (my $x = $cache->{data}->{$dir}) {
3771 return wantarray ? @$x : $x->[0];
3772 }
3773 }
3774 my $pool = SVN::Pool->new;
3775 my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
3776 my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
3777 $pool->clear;
3778 if ($r != $cache->{r}) {
3779 %{$cache->{data}} = ();
3780 $cache->{r} = $r;
3781 }
3782 $cache->{data}->{$dir} = [ \%dirents, $r, $props ];
3783 wantarray ? (\%dirents, $r, $props) : \%dirents;
3784 }
3785
3786 sub DESTROY {
3787 # do not call the real DESTROY since we store ourselves in $RA
3788 }
3789
3790 sub get_log {
3791 my ($self, @args) = @_;
3792 my $pool = SVN::Pool->new;
3793 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
3794 my $ret = $self->SUPER::get_log(@args, $pool);
3795 $pool->clear;
3796 $ret;
3797 }
3798
3799 sub trees_match {
3800 my ($self, $url1, $rev1, $url2, $rev2) = @_;
3801 my $ctx = SVN::Client->new(auth => _auth_providers);
3802 my $out = IO::File->new_tmpfile;
3803
3804 # older SVN (1.1.x) doesn't take $pool as the last parameter for
3805 # $ctx->diff(), so we'll create a default one
3806 my $pool = SVN::Pool->new_default_sub;
3807
3808 $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
3809 $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
3810 $out->flush;
3811 my $ret = (($out->stat)[7] == 0);
3812 close $out or croak $!;
3813
3814 $ret;
3815 }
3816
3817 sub get_commit_editor {
3818 my ($self, $log, $cb, $pool) = @_;
3819 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
3820 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
3821 }
3822
3823 sub gs_do_update {
3824 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
3825 my $new = ($rev_a == $rev_b);
3826 my $path = $gs->{path};
3827
3828 if ($new && -e $gs->{index}) {
3829 unlink $gs->{index} or die
3830 "Couldn't unlink index: $gs->{index}: $!\n";
3831 }
3832 my $pool = SVN::Pool->new;
3833 $editor->set_path_strip($path);
3834 my (@pc) = split m#/#, $path;
3835 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
3836 1, $editor, $pool);
3837 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3838
3839 # Since we can't rely on svn_ra_reparent being available, we'll
3840 # just have to do some magic with set_path to make it so
3841 # we only want a partial path.
3842 my $sp = '';
3843 my $final = join('/', @pc);
3844 while (@pc) {
3845 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
3846 $sp .= '/' if length $sp;
3847 $sp .= shift @pc;
3848 }
3849 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
3850
3851 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
3852
3853 $reporter->finish_report($pool);
3854 $pool->clear;
3855 $editor->{git_commit_ok};
3856 }
3857
3858 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
3859 # svn_ra_reparent didn't work before 1.4)
3860 sub gs_do_switch {
3861 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
3862 my $path = $gs->{path};
3863 my $pool = SVN::Pool->new;
3864
3865 my $full_url = $self->{url};
3866 my $old_url = $full_url;
3867 $full_url .= '/' . escape_uri_only($path) if length $path;
3868 my ($ra, $reparented);
3869 if ($old_url ne $full_url) {
3870 if ($old_url !~ m#^svn(\+ssh)?://#) {
3871 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url,
3872 $pool);
3873 $self->{url} = $full_url;
3874 $reparented = 1;
3875 } else {
3876 $_[0] = undef;
3877 $self = undef;
3878 $RA = undef;
3879 $ra = Git::SVN::Ra->new($full_url);
3880 $ra_invalid = 1;
3881 }
3882 }
3883 $ra ||= $self;
3884 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
3885 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3886 $reporter->set_path('', $rev_a, 0, @lock, $pool);
3887 $reporter->finish_report($pool);
3888
3889 if ($reparented) {
3890 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
3891 $self->{url} = $old_url;
3892 }
3893
3894 $pool->clear;
3895 $editor->{git_commit_ok};
3896 }
3897
3898 sub longest_common_path {
3899 my ($gsv, $globs) = @_;
3900 my %common;
3901 my $common_max = scalar @$gsv;
3902
3903 foreach my $gs (@$gsv) {
3904 my @tmp = split m#/#, $gs->{path};
3905 my $p = '';
3906 foreach (@tmp) {
3907 $p .= length($p) ? "/$_" : $_;
3908 $common{$p} ||= 0;
3909 $common{$p}++;
3910 }
3911 }
3912 $globs ||= [];
3913 $common_max += scalar @$globs;
3914 foreach my $glob (@$globs) {
3915 my @tmp = split m#/#, $glob->{path}->{left};
3916 my $p = '';
3917 foreach (@tmp) {
3918 $p .= length($p) ? "/$_" : $_;
3919 $common{$p} ||= 0;
3920 $common{$p}++;
3921 }
3922 }
3923
3924 my $longest_path = '';
3925 foreach (sort {length $b <=> length $a} keys %common) {
3926 if ($common{$_} == $common_max) {
3927 $longest_path = $_;
3928 last;
3929 }
3930 }
3931 $longest_path;
3932 }
3933
3934 sub gs_fetch_loop_common {
3935 my ($self, $base, $head, $gsv, $globs) = @_;
3936 return if ($base > $head);
3937 my $inc = $_log_window_size;
3938 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
3939 my $longest_path = longest_common_path($gsv, $globs);
3940 my $ra_url = $self->{url};
3941 while (1) {
3942 my %revs;
3943 my $err;
3944 my $err_handler = $SVN::Error::handler;
3945 $SVN::Error::handler = sub {
3946 ($err) = @_;
3947 skip_unknown_revs($err);
3948 };
3949 sub _cb {
3950 my ($paths, $r, $author, $date, $log) = @_;
3951 [ dup_changed_paths($paths),
3952 { author => $author, date => $date, log => $log } ];
3953 }
3954 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
3955 sub { $revs{$_[1]} = _cb(@_) });
3956 if ($err && $max >= $head) {
3957 print STDERR "Path '$longest_path' ",
3958 "was probably deleted:\n",
3959 $err->expanded_message,
3960 "\nWill attempt to follow ",
3961 "revisions r$min .. r$max ",
3962 "committed before the deletion\n";
3963 my $hi = $max;
3964 while (--$hi >= $min) {
3965 my $ok;
3966 $self->get_log([$longest_path], $min, $hi,
3967 0, 1, 1, sub {
3968 $ok ||= $_[1];
3969 $revs{$_[1]} = _cb(@_) });
3970 if ($ok) {
3971 print STDERR "r$min .. r$ok OK\n";
3972 last;
3973 }
3974 }
3975 }
3976 $SVN::Error::handler = $err_handler;
3977
3978 my %exists = map { $_->{path} => $_ } @$gsv;
3979 foreach my $r (sort {$a <=> $b} keys %revs) {
3980 my ($paths, $logged) = @{$revs{$r}};
3981
3982 foreach my $gs ($self->match_globs(\%exists, $paths,
3983 $globs, $r)) {
3984 if ($gs->rev_map_max >= $r) {
3985 next;
3986 }
3987 next unless $gs->match_paths($paths, $r);
3988 $gs->{logged_rev_props} = $logged;
3989 if (my $last_commit = $gs->last_commit) {
3990 $gs->assert_index_clean($last_commit);
3991 }
3992 my $log_entry = $gs->do_fetch($paths, $r);
3993 if ($log_entry) {
3994 $gs->do_git_commit($log_entry);
3995 }
3996 $INDEX_FILES{$gs->{index}} = 1;
3997 }
3998 foreach my $g (@$globs) {
3999 my $k = "svn-remote.$g->{remote}." .
4000 "$g->{t}-maxRev";
4001 Git::SVN::tmp_config($k, $r);
4002 }
4003 if ($ra_invalid) {
4004 $_[0] = undef;
4005 $self = undef;
4006 $RA = undef;
4007 $self = Git::SVN::Ra->new($ra_url);
4008 $ra_invalid = undef;
4009 }
4010 }
4011 # pre-fill the .rev_db since it'll eventually get filled in
4012 # with '0' x40 if something new gets committed
4013 foreach my $gs (@$gsv) {
4014 next if $gs->rev_map_max >= $max;
4015 next if defined $gs->rev_map_get($max);
4016 $gs->rev_map_set($max, 0 x40);
4017 }
4018 foreach my $g (@$globs) {
4019 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
4020 Git::SVN::tmp_config($k, $max);
4021 }
4022 last if $max >= $head;
4023 $min = $max + 1;
4024 $max += $inc;
4025 $max = $head if ($max > $head);
4026 }
4027 Git::SVN::gc();
4028 }
4029
4030 sub match_globs {
4031 my ($self, $exists, $paths, $globs, $r) = @_;
4032
4033 sub get_dir_check {
4034 my ($self, $exists, $g, $r) = @_;
4035 my @x = eval { $self->get_dir($g->{path}->{left}, $r) };
4036 return unless scalar @x == 3;
4037 my $dirents = $x[0];
4038 foreach my $de (keys %$dirents) {
4039 next if $dirents->{$de}->{kind} != $SVN::Node::dir;
4040 my $p = $g->{path}->full_path($de);
4041 next if $exists->{$p};
4042 next if (length $g->{path}->{right} &&
4043 ($self->check_path($p, $r) !=
4044 $SVN::Node::dir));
4045 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
4046 $g->{ref}->full_path($de), 1);
4047 }
4048 }
4049 foreach my $g (@$globs) {
4050 if (my $path = $paths->{"/$g->{path}->{left}"}) {
4051 if ($path->{action} =~ /^[AR]$/) {
4052 get_dir_check($self, $exists, $g, $r);
4053 }
4054 }
4055 foreach (keys %$paths) {
4056 if (/$g->{path}->{left_regex}/ &&
4057 !/$g->{path}->{regex}/) {
4058 next if $paths->{$_}->{action} !~ /^[AR]$/;
4059 get_dir_check($self, $exists, $g, $r);
4060 }
4061 next unless /$g->{path}->{regex}/;
4062 my $p = $1;
4063 my $pathname = $g->{path}->full_path($p);
4064 next if $exists->{$pathname};
4065 next if ($self->check_path($pathname, $r) !=
4066 $SVN::Node::dir);
4067 $exists->{$pathname} = Git::SVN->init(
4068 $self->{url}, $pathname, undef,
4069 $g->{ref}->full_path($p), 1);
4070 }
4071 my $c = '';
4072 foreach (split m#/#, $g->{path}->{left}) {
4073 $c .= "/$_";
4074 next unless ($paths->{$c} &&
4075 ($paths->{$c}->{action} =~ /^[AR]$/));
4076 get_dir_check($self, $exists, $g, $r);
4077 }
4078 }
4079 values %$exists;
4080 }
4081
4082 sub minimize_url {
4083 my ($self) = @_;
4084 return $self->{url} if ($self->{url} eq $self->{repos_root});
4085 my $url = $self->{repos_root};
4086 my @components = split(m!/!, $self->{svn_path});
4087 my $c = '';
4088 do {
4089 $url .= "/$c" if length $c;
4090 eval { (ref $self)->new($url)->get_latest_revnum };
4091 } while ($@ && ($c = shift @components));
4092 $url;
4093 }
4094
4095 sub can_do_switch {
4096 my $self = shift;
4097 unless (defined $can_do_switch) {
4098 my $pool = SVN::Pool->new;
4099 my $rep = eval {
4100 $self->do_switch(1, '', 0, $self->{url},
4101 SVN::Delta::Editor->new, $pool);
4102 };
4103 if ($@) {
4104 $can_do_switch = 0;
4105 } else {
4106 $rep->abort_report($pool);
4107 $can_do_switch = 1;
4108 }
4109 $pool->clear;
4110 }
4111 $can_do_switch;
4112 }
4113
4114 sub skip_unknown_revs {
4115 my ($err) = @_;
4116 my $errno = $err->apr_err();
4117 # Maybe the branch we're tracking didn't
4118 # exist when the repo started, so it's
4119 # not an error if it doesn't, just continue
4120 #
4121 # Wonderfully consistent library, eh?
4122 # 160013 - svn:// and file://
4123 # 175002 - http(s)://
4124 # 175007 - http(s):// (this repo required authorization, too...)
4125 # More codes may be discovered later...
4126 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
4127 my $err_key = $err->expanded_message;
4128 # revision numbers change every time, filter them out
4129 $err_key =~ s/\d+/\0/g;
4130 $err_key = "$errno\0$err_key";
4131 unless ($ignored_err{$err_key}) {
4132 warn "W: Ignoring error from SVN, path probably ",
4133 "does not exist: ($errno): ",
4134 $err->expanded_message,"\n";
4135 warn "W: Do not be alarmed at the above message ",
4136 "git-svn is just searching aggressively for ",
4137 "old history.\n",
4138 "This may take a while on large repositories\n";
4139 $ignored_err{$err_key} = 1;
4140 }
4141 return;
4142 }
4143 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
4144 }
4145
4146 # svn_log_changed_path_t objects passed to get_log are likely to be
4147 # overwritten even if only the refs are copied to an external variable,
4148 # so we should dup the structures in their entirety. Using an externally
4149 # passed pool (instead of our temporary and quickly cleared pool in
4150 # Git::SVN::Ra) does not help matters at all...
4151 sub dup_changed_paths {
4152 my ($paths) = @_;
4153 return undef unless $paths;
4154 my %ret;
4155 foreach my $p (keys %$paths) {
4156 my $i = $paths->{$p};
4157 my %s = map { $_ => $i->$_ }
4158 qw/copyfrom_path copyfrom_rev action/;
4159 $ret{$p} = \%s;
4160 }
4161 \%ret;
4162 }
4163
4164 package Git::SVN::Log;
4165 use strict;
4166 use warnings;
4167 use POSIX qw/strftime/;
4168 use constant commit_log_separator => ('-' x 72) . "\n";
4169 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
4170 %rusers $show_commit $incremental/;
4171 my $l_fmt;
4172
4173 sub cmt_showable {
4174 my ($c) = @_;
4175 return 1 if defined $c->{r};
4176
4177 # big commit message got truncated by the 16k pretty buffer in rev-list
4178 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
4179 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
4180 @{$c->{l}} = ();
4181 my @log = command(qw/cat-file commit/, $c->{c});
4182
4183 # shift off the headers
4184 shift @log while ($log[0] ne '');
4185 shift @log;
4186
4187 # TODO: make $c->{l} not have a trailing newline in the future
4188 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
4189
4190 (undef, $c->{r}, undef) = ::extract_metadata(
4191 (grep(/^git-svn-id: /, @log))[-1]);
4192 }
4193 return defined $c->{r};
4194 }
4195
4196 sub log_use_color {
4197 return $color || Git->repository->get_colorbool('color.diff');
4198 }
4199
4200 sub git_svn_log_cmd {
4201 my ($r_min, $r_max, @args) = @_;
4202 my $head = 'HEAD';
4203 my (@files, @log_opts);
4204 foreach my $x (@args) {
4205 if ($x eq '--' || @files) {
4206 push @files, $x;
4207 } else {
4208 if (::verify_ref("$x^0")) {
4209 $head = $x;
4210 } else {
4211 push @log_opts, $x;
4212 }
4213 }
4214 }
4215
4216 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
4217 $gs ||= Git::SVN->_new;
4218 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
4219 $gs->refname);
4220 push @cmd, '-r' unless $non_recursive;
4221 push @cmd, qw/--raw --name-status/ if $verbose;
4222 push @cmd, '--color' if log_use_color();
4223 push @cmd, @log_opts;
4224 if (defined $r_max && $r_max == $r_min) {
4225 push @cmd, '--max-count=1';
4226 if (my $c = $gs->rev_map_get($r_max)) {
4227 push @cmd, $c;
4228 }
4229 } elsif (defined $r_max) {
4230 if ($r_max < $r_min) {
4231 ($r_min, $r_max) = ($r_max, $r_min);
4232 }
4233 my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
4234 my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
4235 # If there are no commits in the range, both $c_max and $c_min
4236 # will be undefined. If there is at least 1 commit in the
4237 # range, both will be defined.
4238 return () if !defined $c_min || !defined $c_max;
4239 if ($c_min eq $c_max) {
4240 push @cmd, '--max-count=1', $c_min;
4241 } else {
4242 push @cmd, '--boundary', "$c_min..$c_max";
4243 }
4244 }
4245 return (@cmd, @files);
4246 }
4247
4248 # adapted from pager.c
4249 sub config_pager {
4250 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
4251 if (!defined $pager) {
4252 $pager = 'less';
4253 } elsif (length $pager == 0 || $pager eq 'cat') {
4254 $pager = undef;
4255 }
4256 $ENV{GIT_PAGER_IN_USE} = defined($pager);
4257 }
4258
4259 sub run_pager {
4260 return unless -t *STDOUT && defined $pager;
4261 pipe my $rfd, my $wfd or return;
4262 defined(my $pid = fork) or ::fatal "Can't fork: $!";
4263 if (!$pid) {
4264 open STDOUT, '>&', $wfd or
4265 ::fatal "Can't redirect to stdout: $!";
4266 return;
4267 }
4268 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
4269 $ENV{LESS} ||= 'FRSX';
4270 exec $pager or ::fatal "Can't run pager: $! ($pager)";
4271 }
4272
4273 sub format_svn_date {
4274 return strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)", localtime(shift));
4275 }
4276
4277 sub parse_git_date {
4278 my ($t, $tz) = @_;
4279 # Date::Parse isn't in the standard Perl distro :(
4280 if ($tz =~ s/^\+//) {
4281 $t += tz_to_s_offset($tz);
4282 } elsif ($tz =~ s/^\-//) {
4283 $t -= tz_to_s_offset($tz);
4284 }
4285 return $t;
4286 }
4287
4288 sub set_local_timezone {
4289 if (defined $TZ) {
4290 $ENV{TZ} = $TZ;
4291 } else {
4292 delete $ENV{TZ};
4293 }
4294 }
4295
4296 sub tz_to_s_offset {
4297 my ($tz) = @_;
4298 $tz =~ s/(\d\d)$//;
4299 return ($1 * 60) + ($tz * 3600);
4300 }
4301
4302 sub get_author_info {
4303 my ($dest, $author, $t, $tz) = @_;
4304 $author =~ s/(?:^\s*|\s*$)//g;
4305 $dest->{a_raw} = $author;
4306 my $au;
4307 if ($::_authors) {
4308 $au = $rusers{$author} || undef;
4309 }
4310 if (!$au) {
4311 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
4312 }
4313 $dest->{t} = $t;
4314 $dest->{tz} = $tz;
4315 $dest->{a} = $au;
4316 $dest->{t_utc} = parse_git_date($t, $tz);
4317 }
4318
4319 sub process_commit {
4320 my ($c, $r_min, $r_max, $defer) = @_;
4321 if (defined $r_min && defined $r_max) {
4322 if ($r_min == $c->{r} && $r_min == $r_max) {
4323 show_commit($c);
4324 return 0;
4325 }
4326 return 1 if $r_min == $r_max;
4327 if ($r_min < $r_max) {
4328 # we need to reverse the print order
4329 return 0 if (defined $limit && --$limit < 0);
4330 push @$defer, $c;
4331 return 1;
4332 }
4333 if ($r_min != $r_max) {
4334 return 1 if ($r_min < $c->{r});
4335 return 1 if ($r_max > $c->{r});
4336 }
4337 }
4338 return 0 if (defined $limit && --$limit < 0);
4339 show_commit($c);
4340 return 1;
4341 }
4342
4343 sub show_commit {
4344 my $c = shift;
4345 if ($oneline) {
4346 my $x = "\n";
4347 if (my $l = $c->{l}) {
4348 while ($l->[0] =~ /^\s*$/) { shift @$l }
4349 $x = $l->[0];
4350 }
4351 $l_fmt ||= 'A' . length($c->{r});
4352 print 'r',pack($l_fmt, $c->{r}),' | ';
4353 print "$c->{c} | " if $show_commit;
4354 print $x;
4355 } else {
4356 show_commit_normal($c);
4357 }
4358 }
4359
4360 sub show_commit_changed_paths {
4361 my ($c) = @_;
4362 return unless $c->{changed};
4363 print "Changed paths:\n", @{$c->{changed}};
4364 }
4365
4366 sub show_commit_normal {
4367 my ($c) = @_;
4368 print commit_log_separator, "r$c->{r} | ";
4369 print "$c->{c} | " if $show_commit;
4370 print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
4371 my $nr_line = 0;
4372
4373 if (my $l = $c->{l}) {
4374 while ($l->[$#$l] eq "\n" && $#$l > 0
4375 && $l->[($#$l - 1)] eq "\n") {
4376 pop @$l;
4377 }
4378 $nr_line = scalar @$l;
4379 if (!$nr_line) {
4380 print "1 line\n\n\n";
4381 } else {
4382 if ($nr_line == 1) {
4383 $nr_line = '1 line';
4384 } else {
4385 $nr_line .= ' lines';
4386 }
4387 print $nr_line, "\n";
4388 show_commit_changed_paths($c);
4389 print "\n";
4390 print $_ foreach @$l;
4391 }
4392 } else {
4393 print "1 line\n";
4394 show_commit_changed_paths($c);
4395 print "\n";
4396
4397 }
4398 foreach my $x (qw/raw stat diff/) {
4399 if ($c->{$x}) {
4400 print "\n";
4401 print $_ foreach @{$c->{$x}}
4402 }
4403 }
4404 }
4405
4406 sub cmd_show_log {
4407 my (@args) = @_;
4408 my ($r_min, $r_max);
4409 my $r_last = -1; # prevent dupes
4410 set_local_timezone();
4411 if (defined $::_revision) {
4412 if ($::_revision =~ /^(\d+):(\d+)$/) {
4413 ($r_min, $r_max) = ($1, $2);
4414 } elsif ($::_revision =~ /^\d+$/) {
4415 $r_min = $r_max = $::_revision;
4416 } else {
4417 ::fatal "-r$::_revision is not supported, use ",
4418 "standard 'git log' arguments instead";
4419 }
4420 }
4421
4422 config_pager();
4423 @args = git_svn_log_cmd($r_min, $r_max, @args);
4424 if (!@args) {
4425 print commit_log_separator unless $incremental || $oneline;
4426 return;
4427 }
4428 my $log = command_output_pipe(@args);
4429 run_pager();
4430 my (@k, $c, $d, $stat);
4431 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
4432 while (<$log>) {
4433 if (/^${esc_color}commit -?($::sha1_short)/o) {
4434 my $cmt = $1;
4435 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
4436 $r_last = $c->{r};
4437 process_commit($c, $r_min, $r_max, \@k) or
4438 goto out;
4439 }
4440 $d = undef;
4441 $c = { c => $cmt };
4442 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
4443 get_author_info($c, $1, $2, $3);
4444 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
4445 # ignore
4446 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
4447 push @{$c->{raw}}, $_;
4448 } elsif (/^${esc_color}[ACRMDT]\t/) {
4449 # we could add $SVN->{svn_path} here, but that requires
4450 # remote access at the moment (repo_path_split)...
4451 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
4452 push @{$c->{changed}}, $_;
4453 } elsif (/^${esc_color}diff /o) {
4454 $d = 1;
4455 push @{$c->{diff}}, $_;
4456 } elsif ($d) {
4457 push @{$c->{diff}}, $_;
4458 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
4459 $esc_color*[\+\-]*$esc_color$/x) {
4460 $stat = 1;
4461 push @{$c->{stat}}, $_;
4462 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
4463 push @{$c->{stat}}, $_;
4464 $stat = undef;
4465 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
4466 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
4467 } elsif (s/^${esc_color} //o) {
4468 push @{$c->{l}}, $_;
4469 }
4470 }
4471 if ($c && defined $c->{r} && $c->{r} != $r_last) {
4472 $r_last = $c->{r};
4473 process_commit($c, $r_min, $r_max, \@k);
4474 }
4475 if (@k) {
4476 ($r_min, $r_max) = ($r_max, $r_min);
4477 process_commit($_, $r_min, $r_max) foreach reverse @k;
4478 }
4479 out:
4480 close $log;
4481 print commit_log_separator unless $incremental || $oneline;
4482 }
4483
4484 sub cmd_blame {
4485 my $path = pop;
4486
4487 config_pager();
4488 run_pager();
4489
4490 my ($fh, $ctx, $rev);
4491
4492 if ($_git_format) {
4493 ($fh, $ctx) = command_output_pipe('blame', @_, $path);
4494 while (my $line = <$fh>) {
4495 if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
4496 # Uncommitted edits show up as a rev ID of
4497 # all zeros, which we can't look up with
4498 # cmt_metadata
4499 if ($1 !~ /^0+$/) {
4500 (undef, $rev, undef) =
4501 ::cmt_metadata($1);
4502 $rev = '0' if (!$rev);
4503 } else {
4504 $rev = '0';
4505 }
4506 $rev = sprintf('%-10s', $rev);
4507 $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
4508 }
4509 print $line;
4510 }
4511 } else {
4512 ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
4513 '--', $path);
4514 my ($sha1);
4515 my %authors;
4516 while (my $line = <$fh>) {
4517 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
4518 $sha1 = $1;
4519 (undef, $rev, undef) = ::cmt_metadata($1);
4520 $rev = '0' if (!$rev);
4521 }
4522 elsif ($line =~ /^author (.*)/) {
4523 $authors{$rev} = $1;
4524 $authors{$rev} =~ s/\s/_/g;
4525 }
4526 elsif ($line =~ /^\t(.*)$/) {
4527 printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
4528 }
4529 }
4530 }
4531 command_close_pipe($fh, $ctx);
4532 }
4533
4534 package Git::SVN::Migration;
4535 # these version numbers do NOT correspond to actual version numbers
4536 # of git nor git-svn. They are just relative.
4537 #
4538 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
4539 #
4540 # v1 layout: .git/$id/info/url, refs/remotes/$id
4541 #
4542 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
4543 #
4544 # v3 layout: .git/svn/$id, refs/remotes/$id
4545 # - info/url may remain for backwards compatibility
4546 # - this is what we migrate up to this layout automatically,
4547 # - this will be used by git svn init on single branches
4548 # v3.1 layout (auto migrated):
4549 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
4550 # for backwards compatibility
4551 #
4552 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
4553 # - this is only created for newly multi-init-ed
4554 # repositories. Similar in spirit to the
4555 # --use-separate-remotes option in git-clone (now default)
4556 # - we do not automatically migrate to this (following
4557 # the example set by core git)
4558 #
4559 # v5 layout: .rev_db.$UUID => .rev_map.$UUID
4560 # - newer, more-efficient format that uses 24-bytes per record
4561 # with no filler space.
4562 # - use xxd -c24 < .rev_map.$UUID to view and debug
4563 # - This is a one-way migration, repositories updated to the
4564 # new format will not be able to use old git-svn without
4565 # rebuilding the .rev_db. Rebuilding the rev_db is not
4566 # possible if noMetadata or useSvmProps are set; but should
4567 # be no problem for users that use the (sensible) defaults.
4568 use strict;
4569 use warnings;
4570 use Carp qw/croak/;
4571 use File::Path qw/mkpath/;
4572 use File::Basename qw/dirname basename/;
4573 use vars qw/$_minimize/;
4574
4575 sub migrate_from_v0 {
4576 my $git_dir = $ENV{GIT_DIR};
4577 return undef unless -d $git_dir;
4578 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
4579 my $migrated = 0;
4580 while (<$fh>) {
4581 chomp;
4582 my ($id, $orig_ref) = ($_, $_);
4583 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
4584 next unless -f "$git_dir/$id/info/url";
4585 my $new_ref = "refs/remotes/$id";
4586 if (::verify_ref("$new_ref^0")) {
4587 print STDERR "W: $orig_ref is probably an old ",
4588 "branch used by an ancient version of ",
4589 "git-svn.\n",
4590 "However, $new_ref also exists.\n",
4591 "We will not be able ",
4592 "to use this branch until this ",
4593 "ambiguity is resolved.\n";
4594 next;
4595 }
4596 print STDERR "Migrating from v0 layout...\n" if !$migrated;
4597 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
4598 command_noisy('update-ref', $new_ref, $orig_ref);
4599 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
4600 $migrated++;
4601 }
4602 command_close_pipe($fh, $ctx);
4603 print STDERR "Done migrating from v0 layout...\n" if $migrated;
4604 $migrated;
4605 }
4606
4607 sub migrate_from_v1 {
4608 my $git_dir = $ENV{GIT_DIR};
4609 my $migrated = 0;
4610 return $migrated unless -d $git_dir;
4611 my $svn_dir = "$git_dir/svn";
4612
4613 # just in case somebody used 'svn' as their $id at some point...
4614 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
4615
4616 print STDERR "Migrating from a git-svn v1 layout...\n";
4617 mkpath([$svn_dir]);
4618 print STDERR "Data from a previous version of git-svn exists, but\n\t",
4619 "$svn_dir\n\t(required for this version ",
4620 "($::VERSION) of git-svn) does not. exist\n";
4621 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
4622 while (<$fh>) {
4623 my $x = $_;
4624 next unless $x =~ s#^refs/remotes/##;
4625 chomp $x;
4626 next unless -f "$git_dir/$x/info/url";
4627 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
4628 next unless $u;
4629 my $dn = dirname("$git_dir/svn/$x");
4630 mkpath([$dn]) unless -d $dn;
4631 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
4632 mkpath(["$git_dir/svn/svn"]);
4633 print STDERR " - $git_dir/$x/info => ",
4634 "$git_dir/svn/$x/info\n";
4635 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
4636 croak "$!: $x";
4637 # don't worry too much about these, they probably
4638 # don't exist with repos this old (save for index,
4639 # and we can easily regenerate that)
4640 foreach my $f (qw/unhandled.log index .rev_db/) {
4641 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
4642 }
4643 } else {
4644 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
4645 rename "$git_dir/$x", "$git_dir/svn/$x" or
4646 croak "$!: $x";
4647 }
4648 $migrated++;
4649 }
4650 command_close_pipe($fh, $ctx);
4651 print STDERR "Done migrating from a git-svn v1 layout\n";
4652 $migrated;
4653 }
4654
4655 sub read_old_urls {
4656 my ($l_map, $pfx, $path) = @_;
4657 my @dir;
4658 foreach (<$path/*>) {
4659 if (-r "$_/info/url") {
4660 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
4661 my $ref_id = $pfx . basename $_;
4662 my $url = ::file_to_s("$_/info/url");
4663 $l_map->{$ref_id} = $url;
4664 } elsif (-d $_) {
4665 push @dir, $_;
4666 }
4667 }
4668 foreach (@dir) {
4669 my $x = $_;
4670 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
4671 read_old_urls($l_map, $x, $_);
4672 }
4673 }
4674
4675 sub migrate_from_v2 {
4676 my @cfg = command(qw/config -l/);
4677 return if grep /^svn-remote\..+\.url=/, @cfg;
4678 my %l_map;
4679 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
4680 my $migrated = 0;
4681
4682 foreach my $ref_id (sort keys %l_map) {
4683 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
4684 if ($@) {
4685 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
4686 }
4687 $migrated++;
4688 }
4689 $migrated;
4690 }
4691
4692 sub minimize_connections {
4693 my $r = Git::SVN::read_all_remotes();
4694 my $new_urls = {};
4695 my $root_repos = {};
4696 foreach my $repo_id (keys %$r) {
4697 my $url = $r->{$repo_id}->{url} or next;
4698 my $fetch = $r->{$repo_id}->{fetch} or next;
4699 my $ra = Git::SVN::Ra->new($url);
4700
4701 # skip existing cases where we already connect to the root
4702 if (($ra->{url} eq $ra->{repos_root}) ||
4703 ($ra->{repos_root} eq $repo_id)) {
4704 $root_repos->{$ra->{url}} = $repo_id;
4705 next;
4706 }
4707
4708 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
4709 my $root_path = $ra->{url};
4710 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
4711 foreach my $path (keys %$fetch) {
4712 my $ref_id = $fetch->{$path};
4713 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
4714
4715 # make sure we can read when connecting to
4716 # a higher level of a repository
4717 my ($last_rev, undef) = $gs->last_rev_commit;
4718 if (!defined $last_rev) {
4719 $last_rev = eval {
4720 $root_ra->get_latest_revnum;
4721 };
4722 next if $@;
4723 }
4724 my $new = $root_path;
4725 $new .= length $path ? "/$path" : '';
4726 eval {
4727 $root_ra->get_log([$new], $last_rev, $last_rev,
4728 0, 0, 1, sub { });
4729 };
4730 next if $@;
4731 $new_urls->{$ra->{repos_root}}->{$new} =
4732 { ref_id => $ref_id,
4733 old_repo_id => $repo_id,
4734 old_path => $path };
4735 }
4736 }
4737
4738 my @emptied;
4739 foreach my $url (keys %$new_urls) {
4740 # see if we can re-use an existing [svn-remote "repo_id"]
4741 # instead of creating a(n ugly) new section:
4742 my $repo_id = $root_repos->{$url} || $url;
4743
4744 my $fetch = $new_urls->{$url};
4745 foreach my $path (keys %$fetch) {
4746 my $x = $fetch->{$path};
4747 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
4748 my $pfx = "svn-remote.$x->{old_repo_id}";
4749
4750 my $old_fetch = quotemeta("$x->{old_path}:".
4751 "refs/remotes/$x->{ref_id}");
4752 command_noisy(qw/config --unset/,
4753 "$pfx.fetch", '^'. $old_fetch . '$');
4754 delete $r->{$x->{old_repo_id}}->
4755 {fetch}->{$x->{old_path}};
4756 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
4757 command_noisy(qw/config --unset/,
4758 "$pfx.url");
4759 push @emptied, $x->{old_repo_id}
4760 }
4761 }
4762 }
4763 if (@emptied) {
4764 my $file = $ENV{GIT_CONFIG} || $ENV{GIT_CONFIG_LOCAL} ||
4765 "$ENV{GIT_DIR}/config";
4766 print STDERR <<EOF;
4767 The following [svn-remote] sections in your config file ($file) are empty
4768 and can be safely removed:
4769 EOF
4770 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
4771 }
4772 }
4773
4774 sub migration_check {
4775 migrate_from_v0();
4776 migrate_from_v1();
4777 migrate_from_v2();
4778 minimize_connections() if $_minimize;
4779 }
4780
4781 package Git::IndexInfo;
4782 use strict;
4783 use warnings;
4784 use Git qw/command_input_pipe command_close_pipe/;
4785
4786 sub new {
4787 my ($class) = @_;
4788 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
4789 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
4790 }
4791
4792 sub remove {
4793 my ($self, $path) = @_;
4794 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
4795 return ++$self->{nr};
4796 }
4797 undef;
4798 }
4799
4800 sub update {
4801 my ($self, $mode, $hash, $path) = @_;
4802 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
4803 return ++$self->{nr};
4804 }
4805 undef;
4806 }
4807
4808 sub DESTROY {
4809 my ($self) = @_;
4810 command_close_pipe($self->{gui}, $self->{ctx});
4811 }
4812
4813 package Git::SVN::GlobSpec;
4814 use strict;
4815 use warnings;
4816
4817 sub new {
4818 my ($class, $glob) = @_;
4819 my $re = $glob;
4820 $re =~ s!/+$!!g; # no need for trailing slashes
4821 my $nr = ($re =~ s!^(.*)\*(.*)$!\(\[^/\]+\)!g);
4822 my ($left, $right) = ($1, $2);
4823 if ($nr > 1) {
4824 die "Only one '*' wildcard expansion ",
4825 "is supported (got $nr): '$glob'\n";
4826 } elsif ($nr == 0) {
4827 die "One '*' is needed for glob: '$glob'\n";
4828 }
4829 $re = quotemeta($left) . $re . quotemeta($right);
4830 if (length $left && !($left =~ s!/+$!!g)) {
4831 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
4832 }
4833 if (length $right && !($right =~ s!^/+!!g)) {
4834 die "Missing leading '/' on right side of: '$glob' ($right)\n";
4835 }
4836 my $left_re = qr/^\/\Q$left\E(\/|$)/;
4837 bless { left => $left, right => $right, left_regex => $left_re,
4838 regex => qr/$re/, glob => $glob }, $class;
4839 }
4840
4841 sub full_path {
4842 my ($self, $path) = @_;
4843 return (length $self->{left} ? "$self->{left}/" : '') .
4844 $path . (length $self->{right} ? "/$self->{right}" : '');
4845 }
4846
4847 __END__
4848
4849 Data structures:
4850
4851
4852 $remotes = { # returned by read_all_remotes()
4853 'svn' => {
4854 # svn-remote.svn.url=https://svn.musicpd.org
4855 url => 'https://svn.musicpd.org',
4856 # svn-remote.svn.fetch=mpd/trunk:trunk
4857 fetch => {
4858 'mpd/trunk' => 'trunk',
4859 },
4860 # svn-remote.svn.tags=mpd/tags/*:tags/*
4861 tags => {
4862 path => {
4863 left => 'mpd/tags',
4864 right => '',
4865 regex => qr!mpd/tags/([^/]+)$!,
4866 glob => 'tags/*',
4867 },
4868 ref => {
4869 left => 'tags',
4870 right => '',
4871 regex => qr!tags/([^/]+)$!,
4872 glob => 'tags/*',
4873 },
4874 }
4875 }
4876 };
4877
4878 $log_entry hashref as returned by libsvn_log_entry()
4879 {
4880 log => 'whitespace-formatted log entry
4881 ', # trailing newline is preserved
4882 revision => '8', # integer
4883 date => '2004-02-24T17:01:44.108345Z', # commit date
4884 author => 'committer name'
4885 };
4886
4887
4888 # this is generated by generate_diff();
4889 @mods = array of diff-index line hashes, each element represents one line
4890 of diff-index output
4891
4892 diff-index line ($m hash)
4893 {
4894 mode_a => first column of diff-index output, no leading ':',
4895 mode_b => second column of diff-index output,
4896 sha1_b => sha1sum of the final blob,
4897 chg => change type [MCRADT],
4898 file_a => original file name of a file (iff chg is 'C' or 'R')
4899 file_b => new/current file name of a file (any chg)
4900 }
4901 ;
4902
4903 # retval of read_url_paths{,_all}();
4904 $l_map = {
4905 # repository root url
4906 'https://svn.musicpd.org' => {
4907 # repository path # GIT_SVN_ID
4908 'mpd/trunk' => 'trunk',
4909 'mpd/tags/0.11.5' => 'tags/0.11.5',
4910 },
4911 }
4912
4913 Notes:
4914 I don't trust the each() function on unless I created %hash myself
4915 because the internal iterator may not have started at base.