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rebase -i: When an 'edit' stops, mention the commit
[git/platforms.git] / git-svn.perl
blob2e0e55242ff089cda3c87ae57f7c776c13508a56
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: git svn <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, $uuid, $gs) = working_head_info($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, $uuid);
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 $path =~ s#^/##;
647 $path =~ s#^\.$##;
648 return $path;
649 }
650
651 # get_svnprops(PATH)
652 # ------------------
653 # Helper for cmd_propget and cmd_proplist below.
654 sub get_svnprops {
655 my $path = shift;
656 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
657 $gs ||= Git::SVN->new;
658
659 # prefix THE PATH by the sub-directory from which the user
660 # invoked us.
661 $path = $cmd_dir_prefix . $path;
662 fatal("No such file or directory: $path") unless -e $path;
663 my $is_dir = -d $path ? 1 : 0;
664 $path = $gs->{path} . '/' . $path;
665
666 # canonicalize the path (otherwise libsvn will abort or fail to
667 # find the file)
668 $path = canonicalize_path($path);
669
670 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
671 my $props;
672 if ($is_dir) {
673 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
674 }
675 else {
676 (undef, $props) = $gs->ra->get_file($path, $r, undef);
677 }
678 return $props;
679 }
680
681 # cmd_propget (PROP, PATH)
682 # ------------------------
683 # Print the SVN property PROP for PATH.
684 sub cmd_propget {
685 my ($prop, $path) = @_;
686 $path = '.' if not defined $path;
687 usage(1) if not defined $prop;
688 my $props = get_svnprops($path);
689 if (not defined $props->{$prop}) {
690 fatal("`$path' does not have a `$prop' SVN property.");
691 }
692 print $props->{$prop} . "\n";
693 }
694
695 # cmd_proplist (PATH)
696 # -------------------
697 # Print the list of SVN properties for PATH.
698 sub cmd_proplist {
699 my $path = shift;
700 $path = '.' if not defined $path;
701 my $props = get_svnprops($path);
702 print "Properties on '$path':\n";
703 foreach (sort keys %{$props}) {
704 print " $_\n";
705 }
706 }
707
708 sub cmd_multi_init {
709 my $url = shift;
710 unless (defined $_trunk || defined $_branches || defined $_tags) {
711 usage(1);
712 }
713
714 # there are currently some bugs that prevent multi-init/multi-fetch
715 # setups from working well without this.
716 $Git::SVN::_minimize_url = 1;
717
718 $_prefix = '' unless defined $_prefix;
719 if (defined $url) {
720 $url =~ s#/+$##;
721 init_subdir(@_);
722 }
723 do_git_init_db();
724 if (defined $_trunk) {
725 my $trunk_ref = $_prefix . 'trunk';
726 # try both old-style and new-style lookups:
727 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
728 unless ($gs_trunk) {
729 my ($trunk_url, $trunk_path) =
730 complete_svn_url($url, $_trunk);
731 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
732 undef, $trunk_ref);
733 }
734 }
735 return unless defined $_branches || defined $_tags;
736 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
737 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
738 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
739 }
740
741 sub cmd_multi_fetch {
742 my $remotes = Git::SVN::read_all_remotes();
743 foreach my $repo_id (sort keys %$remotes) {
744 if ($remotes->{$repo_id}->{url}) {
745 Git::SVN::fetch_all($repo_id, $remotes);
746 }
747 }
748 }
749
750 # this command is special because it requires no metadata
751 sub cmd_commit_diff {
752 my ($ta, $tb, $url) = @_;
753 my $usage = "Usage: $0 commit-diff -r<revision> ".
754 "<tree-ish> <tree-ish> [<URL>]";
755 fatal($usage) if (!defined $ta || !defined $tb);
756 my $svn_path = '';
757 if (!defined $url) {
758 my $gs = eval { Git::SVN->new };
759 if (!$gs) {
760 fatal("Needed URL or usable git-svn --id in ",
761 "the command-line\n", $usage);
762 }
763 $url = $gs->{url};
764 $svn_path = $gs->{path};
765 }
766 unless (defined $_revision) {
767 fatal("-r|--revision is a required argument\n", $usage);
768 }
769 if (defined $_message && defined $_file) {
770 fatal("Both --message/-m and --file/-F specified ",
771 "for the commit message.\n",
772 "I have no idea what you mean");
773 }
774 if (defined $_file) {
775 $_message = file_to_s($_file);
776 } else {
777 $_message ||= get_commit_entry($tb)->{log};
778 }
779 my $ra ||= Git::SVN::Ra->new($url);
780 my $r = $_revision;
781 if ($r eq 'HEAD') {
782 $r = $ra->get_latest_revnum;
783 } elsif ($r !~ /^\d+$/) {
784 die "revision argument: $r not understood by git-svn\n";
785 }
786 my %ed_opts = ( r => $r,
787 log => $_message,
788 ra => $ra,
789 tree_a => $ta,
790 tree_b => $tb,
791 editor_cb => sub { print "Committed r$_[0]\n" },
792 svn_path => $svn_path );
793 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
794 print "No changes\n$ta == $tb\n";
795 }
796 }
797
798 sub cmd_info {
799 my $path = canonicalize_path(shift or ".");
800 unless (scalar(@_) == 0) {
801 die "Too many arguments specified\n";
802 }
803
804 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
805
806 if (!$file_type && !$diff_status) {
807 print STDERR "$path: (Not a versioned resource)\n\n";
808 return;
809 }
810
811 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
812 unless ($gs) {
813 die "Unable to determine upstream SVN information from ",
814 "working tree history\n";
815 }
816 my $full_url = $url . ($path eq "." ? "" : "/$path");
817
818 if ($_url) {
819 print $full_url, "\n";
820 return;
821 }
822
823 my $result = "Path: $path\n";
824 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
825 $result .= "URL: " . $full_url . "\n";
826
827 eval {
828 my $repos_root = $gs->repos_root;
829 Git::SVN::remove_username($repos_root);
830 $result .= "Repository Root: $repos_root\n";
831 };
832 if ($@) {
833 $result .= "Repository Root: (offline)\n";
834 }
835 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A";
836 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
837
838 $result .= "Node Kind: " .
839 ($file_type eq "dir" ? "directory" : "file") . "\n";
840
841 my $schedule = $diff_status eq "A"
842 ? "add"
843 : ($diff_status eq "D" ? "delete" : "normal");
844 $result .= "Schedule: $schedule\n";
845
846 if ($diff_status eq "A") {
847 print $result, "\n";
848 return;
849 }
850
851 my ($lc_author, $lc_rev, $lc_date_utc);
852 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $path);
853 my $log = command_output_pipe(@args);
854 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
855 while (<$log>) {
856 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
857 $lc_author = $1;
858 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
859 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
860 (undef, $lc_rev, undef) = ::extract_metadata($1);
861 }
862 }
863 close $log;
864
865 Git::SVN::Log::set_local_timezone();
866
867 $result .= "Last Changed Author: $lc_author\n";
868 $result .= "Last Changed Rev: $lc_rev\n";
869 $result .= "Last Changed Date: " .
870 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
871
872 if ($file_type ne "dir") {
873 my $text_last_updated_date =
874 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
875 $result .=
876 "Text Last Updated: " .
877 Git::SVN::Log::format_svn_date($text_last_updated_date) .
878 "\n";
879 my $checksum;
880 if ($diff_status eq "D") {
881 my ($fh, $ctx) =
882 command_output_pipe(qw(cat-file blob), "HEAD:$path");
883 if ($file_type eq "link") {
884 my $file_name = <$fh>;
885 $checksum = md5sum("link $file_name");
886 } else {
887 $checksum = md5sum($fh);
888 }
889 command_close_pipe($fh, $ctx);
890 } elsif ($file_type eq "link") {
891 my $file_name =
892 command(qw(cat-file blob), "HEAD:$path");
893 $checksum =
894 md5sum("link " . $file_name);
895 } else {
896 open FILE, "<", $path or die $!;
897 $checksum = md5sum(\*FILE);
898 close FILE or die $!;
899 }
900 $result .= "Checksum: " . $checksum . "\n";
901 }
902
903 print $result, "\n";
904 }
905
906 ########################### utility functions #########################
907
908 sub rebase_cmd {
909 my @cmd = qw/rebase/;
910 push @cmd, '-v' if $_verbose;
911 push @cmd, qw/--merge/ if $_merge;
912 push @cmd, "--strategy=$_strategy" if $_strategy;
913 @cmd;
914 }
915
916 sub post_fetch_checkout {
917 return if $_no_checkout;
918 my $gs = $Git::SVN::_head or return;
919 return if verify_ref('refs/heads/master^0');
920
921 my $valid_head = verify_ref('HEAD^0');
922 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
923 return if ($valid_head || !verify_ref('HEAD^0'));
924
925 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
926 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
927 return if -f $index;
928
929 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
930 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
931 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
932 print STDERR "Checked out HEAD:\n ",
933 $gs->full_url, " r", $gs->last_rev, "\n";
934 }
935
936 sub complete_svn_url {
937 my ($url, $path) = @_;
938 $path =~ s#/+$##;
939 if ($path !~ m#^[a-z\+]+://#) {
940 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
941 fatal("E: '$path' is not a complete URL ",
942 "and a separate URL is not specified");
943 }
944 return ($url, $path);
945 }
946 return ($path, '');
947 }
948
949 sub complete_url_ls_init {
950 my ($ra, $repo_path, $switch, $pfx) = @_;
951 unless ($repo_path) {
952 print STDERR "W: $switch not specified\n";
953 return;
954 }
955 $repo_path =~ s#/+$##;
956 if ($repo_path =~ m#^[a-z\+]+://#) {
957 $ra = Git::SVN::Ra->new($repo_path);
958 $repo_path = '';
959 } else {
960 $repo_path =~ s#^/+##;
961 unless ($ra) {
962 fatal("E: '$repo_path' is not a complete URL ",
963 "and a separate URL is not specified");
964 }
965 }
966 my $url = $ra->{url};
967 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
968 my $k = "svn-remote.$gs->{repo_id}.url";
969 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
970 if ($orig_url && ($orig_url ne $gs->{url})) {
971 die "$k already set: $orig_url\n",
972 "wanted to set to: $gs->{url}\n";
973 }
974 command_oneline('config', $k, $gs->{url}) unless $orig_url;
975 my $remote_path = "$ra->{svn_path}/$repo_path";
976 $remote_path =~ s#/+#/#g;
977 $remote_path =~ s#^/##g;
978 $remote_path .= "/*" if $remote_path !~ /\*/;
979 my ($n) = ($switch =~ /^--(\w+)/);
980 if (length $pfx && $pfx !~ m#/$#) {
981 die "--prefix='$pfx' must have a trailing slash '/'\n";
982 }
983 command_noisy('config', "svn-remote.$gs->{repo_id}.$n",
984 "$remote_path:refs/remotes/$pfx*");
985 }
986
987 sub verify_ref {
988 my ($ref) = @_;
989 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
990 { STDERR => 0 }); };
991 }
992
993 sub get_tree_from_treeish {
994 my ($treeish) = @_;
995 # $treeish can be a symbolic ref, too:
996 my $type = command_oneline(qw/cat-file -t/, $treeish);
997 my $expected;
998 while ($type eq 'tag') {
999 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1000 }
1001 if ($type eq 'commit') {
1002 $expected = (grep /^tree /, command(qw/cat-file commit/,
1003 $treeish))[0];
1004 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1005 die "Unable to get tree from $treeish\n" unless $expected;
1006 } elsif ($type eq 'tree') {
1007 $expected = $treeish;
1008 } else {
1009 die "$treeish is a $type, expected tree, tag or commit\n";
1010 }
1011 return $expected;
1012 }
1013
1014 sub get_commit_entry {
1015 my ($treeish) = shift;
1016 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1017 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1018 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1019 open my $log_fh, '>', $commit_editmsg or croak $!;
1020
1021 my $type = command_oneline(qw/cat-file -t/, $treeish);
1022 if ($type eq 'commit' || $type eq 'tag') {
1023 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1024 $type, $treeish);
1025 my $in_msg = 0;
1026 my $author;
1027 my $saw_from = 0;
1028 my $msgbuf = "";
1029 while (<$msg_fh>) {
1030 if (!$in_msg) {
1031 $in_msg = 1 if (/^\s*$/);
1032 $author = $1 if (/^author (.*>)/);
1033 } elsif (/^git-svn-id: /) {
1034 # skip this for now, we regenerate the
1035 # correct one on re-fetch anyways
1036 # TODO: set *:merge properties or like...
1037 } else {
1038 if (/^From:/ || /^Signed-off-by:/) {
1039 $saw_from = 1;
1040 }
1041 $msgbuf .= $_;
1042 }
1043 }
1044 $msgbuf =~ s/\s+$//s;
1045 if ($Git::SVN::_add_author_from && defined($author)
1046 && !$saw_from) {
1047 $msgbuf .= "\n\nFrom: $author";
1048 }
1049 print $log_fh $msgbuf or croak $!;
1050 command_close_pipe($msg_fh, $ctx);
1051 }
1052 close $log_fh or croak $!;
1053
1054 if ($_edit || ($type eq 'tree')) {
1055 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1056 # TODO: strip out spaces, comments, like git-commit.sh
1057 system($editor, $commit_editmsg);
1058 }
1059 rename $commit_editmsg, $commit_msg or croak $!;
1060 open $log_fh, '<', $commit_msg or croak $!;
1061 { local $/; chomp($log_entry{log} = <$log_fh>); }
1062 close $log_fh or croak $!;
1063 unlink $commit_msg;
1064 \%log_entry;
1065 }
1066
1067 sub s_to_file {
1068 my ($str, $file, $mode) = @_;
1069 open my $fd,'>',$file or croak $!;
1070 print $fd $str,"\n" or croak $!;
1071 close $fd or croak $!;
1072 chmod ($mode &~ umask, $file) if (defined $mode);
1073 }
1074
1075 sub file_to_s {
1076 my $file = shift;
1077 open my $fd,'<',$file or croak "$!: file: $file\n";
1078 local $/;
1079 my $ret = <$fd>;
1080 close $fd or croak $!;
1081 $ret =~ s/\s*$//s;
1082 return $ret;
1083 }
1084
1085 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1086 sub load_authors {
1087 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1088 my $log = $cmd eq 'log';
1089 while (<$authors>) {
1090 chomp;
1091 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1092 my ($user, $name, $email) = ($1, $2, $3);
1093 if ($log) {
1094 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1095 } else {
1096 $users{$user} = [$name, $email];
1097 }
1098 }
1099 close $authors or croak $!;
1100 }
1101
1102 # convert GetOpt::Long specs for use by git-config
1103 sub read_repo_config {
1104 return unless -d $ENV{GIT_DIR};
1105 my $opts = shift;
1106 my @config_only;
1107 foreach my $o (keys %$opts) {
1108 # if we have mixedCase and a long option-only, then
1109 # it's a config-only variable that we don't need for
1110 # the command-line.
1111 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1112 my $v = $opts->{$o};
1113 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1114 $key =~ s/-//g;
1115 my $arg = 'git-config';
1116 $arg .= ' --int' if ($o =~ /[:=]i$/);
1117 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1118 if (ref $v eq 'ARRAY') {
1119 chomp(my @tmp = `$arg --get-all svn.$key`);
1120 @$v = @tmp if @tmp;
1121 } else {
1122 chomp(my $tmp = `$arg --get svn.$key`);
1123 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1124 $$v = $tmp;
1125 }
1126 }
1127 }
1128 delete @$opts{@config_only} if @config_only;
1129 }
1130
1131 sub extract_metadata {
1132 my $id = shift or return (undef, undef, undef);
1133 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1134 \s([a-f\d\-]+)$/x);
1135 if (!defined $rev || !$uuid || !$url) {
1136 # some of the original repositories I made had
1137 # identifiers like this:
1138 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1139 }
1140 return ($url, $rev, $uuid);
1141 }
1142
1143 sub cmt_metadata {
1144 return extract_metadata((grep(/^git-svn-id: /,
1145 command(qw/cat-file commit/, shift)))[-1]);
1146 }
1147
1148 sub working_head_info {
1149 my ($head, $refs) = @_;
1150 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1151 my ($fh, $ctx) = command_output_pipe(@args, $head);
1152 my $hash;
1153 my %max;
1154 while (<$fh>) {
1155 if ( m{^commit ($::sha1)$} ) {
1156 unshift @$refs, $hash if $hash and $refs;
1157 $hash = $1;
1158 next;
1159 }
1160 next unless s{^\s*(git-svn-id:)}{$1};
1161 my ($url, $rev, $uuid) = extract_metadata($_);
1162 if (defined $url && defined $rev) {
1163 next if $max{$url} and $max{$url} < $rev;
1164 if (my $gs = Git::SVN->find_by_url($url)) {
1165 my $c = $gs->rev_map_get($rev, $uuid);
1166 if ($c && $c eq $hash) {
1167 close $fh; # break the pipe
1168 return ($url, $rev, $uuid, $gs);
1169 } else {
1170 $max{$url} ||= $gs->rev_map_max;
1171 }
1172 }
1173 }
1174 }
1175 command_close_pipe($fh, $ctx);
1176 (undef, undef, undef, undef);
1177 }
1178
1179 sub read_commit_parents {
1180 my ($parents, $c) = @_;
1181 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1182 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1183 @{$parents->{$c}} = split(/ /, $p);
1184 }
1185
1186 sub linearize_history {
1187 my ($gs, $refs) = @_;
1188 my %parents;
1189 foreach my $c (@$refs) {
1190 read_commit_parents(\%parents, $c);
1191 }
1192
1193 my @linear_refs;
1194 my %skip = ();
1195 my $last_svn_commit = $gs->last_commit;
1196 foreach my $c (reverse @$refs) {
1197 next if $c eq $last_svn_commit;
1198 last if $skip{$c};
1199
1200 unshift @linear_refs, $c;
1201 $skip{$c} = 1;
1202
1203 # we only want the first parent to diff against for linear
1204 # history, we save the rest to inject when we finalize the
1205 # svn commit
1206 my $fp_a = verify_ref("$c~1");
1207 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1208 if (!$fp_a || !$fp_b) {
1209 die "Commit $c\n",
1210 "has no parent commit, and therefore ",
1211 "nothing to diff against.\n",
1212 "You should be working from a repository ",
1213 "originally created by git-svn\n";
1214 }
1215 if ($fp_a ne $fp_b) {
1216 die "$c~1 = $fp_a, however parsing commit $c ",
1217 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1218 }
1219
1220 foreach my $p (@{$parents{$c}}) {
1221 $skip{$p} = 1;
1222 }
1223 }
1224 (\@linear_refs, \%parents);
1225 }
1226
1227 sub find_file_type_and_diff_status {
1228 my ($path) = @_;
1229 return ('dir', '') if $path eq '';
1230
1231 my $diff_output =
1232 command_oneline(qw(diff --cached --name-status --), $path) || "";
1233 my $diff_status = (split(' ', $diff_output))[0] || "";
1234
1235 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1236
1237 return (undef, undef) if !$diff_status && !$ls_tree;
1238
1239 if ($diff_status eq "A") {
1240 return ("link", $diff_status) if -l $path;
1241 return ("dir", $diff_status) if -d $path;
1242 return ("file", $diff_status);
1243 }
1244
1245 my $mode = (split(' ', $ls_tree))[0] || "";
1246
1247 return ("link", $diff_status) if $mode eq "120000";
1248 return ("dir", $diff_status) if $mode eq "040000";
1249 return ("file", $diff_status);
1250 }
1251
1252 sub md5sum {
1253 my $arg = shift;
1254 my $ref = ref $arg;
1255 my $md5 = Digest::MD5->new();
1256 if ($ref eq 'GLOB' || $ref eq 'IO::File') {
1257 $md5->addfile($arg) or croak $!;
1258 } elsif ($ref eq 'SCALAR') {
1259 $md5->add($$arg) or croak $!;
1260 } elsif (!$ref) {
1261 $md5->add($arg) or croak $!;
1262 } else {
1263 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1264 }
1265 return $md5->hexdigest();
1266 }
1267
1268 package Git::SVN;
1269 use strict;
1270 use warnings;
1271 use Fcntl qw/:DEFAULT :seek/;
1272 use constant rev_map_fmt => 'NH40';
1273 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1274 $_repack $_repack_flags $_use_svm_props $_head
1275 $_use_svnsync_props $no_reuse_existing $_minimize_url
1276 $_use_log_author $_add_author_from/;
1277 use Carp qw/croak/;
1278 use File::Path qw/mkpath/;
1279 use File::Copy qw/copy/;
1280 use IPC::Open3;
1281
1282 my ($_gc_nr, $_gc_period);
1283
1284 # properties that we do not log:
1285 my %SKIP_PROP;
1286 BEGIN {
1287 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1288 svn:special svn:executable
1289 svn:entry:committed-rev
1290 svn:entry:last-author
1291 svn:entry:uuid
1292 svn:entry:committed-date/;
1293
1294 # some options are read globally, but can be overridden locally
1295 # per [svn-remote "..."] section. Command-line options will *NOT*
1296 # override options set in an [svn-remote "..."] section
1297 no strict 'refs';
1298 for my $option (qw/follow_parent no_metadata use_svm_props
1299 use_svnsync_props/) {
1300 my $key = $option;
1301 $key =~ tr/_//d;
1302 my $prop = "-$option";
1303 *$option = sub {
1304 my ($self) = @_;
1305 return $self->{$prop} if exists $self->{$prop};
1306 my $k = "svn-remote.$self->{repo_id}.$key";
1307 eval { command_oneline(qw/config --get/, $k) };
1308 if ($@) {
1309 $self->{$prop} = ${"Git::SVN::_$option"};
1310 } else {
1311 my $v = command_oneline(qw/config --bool/,$k);
1312 $self->{$prop} = $v eq 'false' ? 0 : 1;
1313 }
1314 return $self->{$prop};
1315 }
1316 }
1317 }
1318
1319 my (%LOCKFILES, %INDEX_FILES);
1320 END {
1321 unlink keys %LOCKFILES if %LOCKFILES;
1322 unlink keys %INDEX_FILES if %INDEX_FILES;
1323 }
1324
1325 sub resolve_local_globs {
1326 my ($url, $fetch, $glob_spec) = @_;
1327 return unless defined $glob_spec;
1328 my $ref = $glob_spec->{ref};
1329 my $path = $glob_spec->{path};
1330 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
1331 next unless m#^refs/remotes/$ref->{regex}$#;
1332 my $p = $1;
1333 my $pathname = desanitize_refname($path->full_path($p));
1334 my $refname = desanitize_refname($ref->full_path($p));
1335 if (my $existing = $fetch->{$pathname}) {
1336 if ($existing ne $refname) {
1337 die "Refspec conflict:\n",
1338 "existing: refs/remotes/$existing\n",
1339 " globbed: refs/remotes/$refname\n";
1340 }
1341 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
1342 $u =~ s!^\Q$url\E(/|$)!! or die
1343 "refs/remotes/$refname: '$url' not found in '$u'\n";
1344 if ($pathname ne $u) {
1345 warn "W: Refspec glob conflict ",
1346 "(ref: refs/remotes/$refname):\n",
1347 "expected path: $pathname\n",
1348 " real path: $u\n",
1349 "Continuing ahead with $u\n";
1350 next;
1351 }
1352 } else {
1353 $fetch->{$pathname} = $refname;
1354 }
1355 }
1356 }
1357
1358 sub parse_revision_argument {
1359 my ($base, $head) = @_;
1360 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1361 return ($base, $head);
1362 }
1363 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1364 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1365 return ($head, $head) if ($::_revision eq 'HEAD');
1366 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1367 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1368 die "revision argument: $::_revision not understood by git-svn\n";
1369 }
1370
1371 sub fetch_all {
1372 my ($repo_id, $remotes) = @_;
1373 if (ref $repo_id) {
1374 my $gs = $repo_id;
1375 $repo_id = undef;
1376 $repo_id = $gs->{repo_id};
1377 }
1378 $remotes ||= read_all_remotes();
1379 my $remote = $remotes->{$repo_id} or
1380 die "[svn-remote \"$repo_id\"] unknown\n";
1381 my $fetch = $remote->{fetch};
1382 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1383 my (@gs, @globs);
1384 my $ra = Git::SVN::Ra->new($url);
1385 my $uuid = $ra->get_uuid;
1386 my $head = $ra->get_latest_revnum;
1387 my $base = defined $fetch ? $head : 0;
1388
1389 # read the max revs for wildcard expansion (branches/*, tags/*)
1390 foreach my $t (qw/branches tags/) {
1391 defined $remote->{$t} or next;
1392 push @globs, $remote->{$t};
1393 my $max_rev = eval { tmp_config(qw/--int --get/,
1394 "svn-remote.$repo_id.${t}-maxRev") };
1395 if (defined $max_rev && ($max_rev < $base)) {
1396 $base = $max_rev;
1397 } elsif (!defined $max_rev) {
1398 $base = 0;
1399 }
1400 }
1401
1402 if ($fetch) {
1403 foreach my $p (sort keys %$fetch) {
1404 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1405 my $lr = $gs->rev_map_max;
1406 if (defined $lr) {
1407 $base = $lr if ($lr < $base);
1408 }
1409 push @gs, $gs;
1410 }
1411 }
1412
1413 ($base, $head) = parse_revision_argument($base, $head);
1414 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1415 }
1416
1417 sub read_all_remotes {
1418 my $r = {};
1419 my $use_svm_props = eval { command_oneline(qw/config --bool
1420 svn.useSvmProps/) };
1421 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
1422 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1423 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
1424 my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
1425 $local_ref =~ s{^/}{};
1426 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1427 $r->{$remote}->{svm} = {} if $use_svm_props;
1428 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
1429 $r->{$1}->{svm} = {};
1430 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1431 $r->{$1}->{url} = $2;
1432 } elsif (m!^(.+)\.(branches|tags)=
1433 (.*):refs/remotes/(.+)\s*$/!x) {
1434 my ($p, $g) = ($3, $4);
1435 my $rs = $r->{$1}->{$2} = {
1436 t => $2,
1437 remote => $1,
1438 path => Git::SVN::GlobSpec->new($p),
1439 ref => Git::SVN::GlobSpec->new($g) };
1440 if (length($rs->{ref}->{right}) != 0) {
1441 die "The '*' glob character must be the last ",
1442 "character of '$g'\n";
1443 }
1444 }
1445 }
1446
1447 map {
1448 if (defined $r->{$_}->{svm}) {
1449 my $svm;
1450 eval {
1451 my $section = "svn-remote.$_";
1452 $svm = {
1453 source => tmp_config('--get',
1454 "$section.svm-source"),
1455 replace => tmp_config('--get',
1456 "$section.svm-replace"),
1457 }
1458 };
1459 $r->{$_}->{svm} = $svm;
1460 }
1461 } keys %$r;
1462
1463 $r;
1464 }
1465
1466 sub init_vars {
1467 $_gc_nr = $_gc_period = 1000;
1468 if (defined $_repack || defined $_repack_flags) {
1469 warn "Repack options are obsolete; they have no effect.\n";
1470 }
1471 }
1472
1473 sub verify_remotes_sanity {
1474 return unless -d $ENV{GIT_DIR};
1475 my %seen;
1476 foreach (command(qw/config -l/)) {
1477 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1478 if ($seen{$1}) {
1479 die "Remote ref refs/remote/$1 is tracked by",
1480 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1481 "Please resolve this ambiguity in ",
1482 "your git configuration file before ",
1483 "continuing\n";
1484 }
1485 $seen{$1} = $_;
1486 }
1487 }
1488 }
1489
1490 sub find_existing_remote {
1491 my ($url, $remotes) = @_;
1492 return undef if $no_reuse_existing;
1493 my $existing;
1494 foreach my $repo_id (keys %$remotes) {
1495 my $u = $remotes->{$repo_id}->{url} or next;
1496 next if $u ne $url;
1497 $existing = $repo_id;
1498 last;
1499 }
1500 $existing;
1501 }
1502
1503 sub init_remote_config {
1504 my ($self, $url, $no_write) = @_;
1505 $url =~ s!/+$!!; # strip trailing slash
1506 my $r = read_all_remotes();
1507 my $existing = find_existing_remote($url, $r);
1508 if ($existing) {
1509 unless ($no_write) {
1510 print STDERR "Using existing ",
1511 "[svn-remote \"$existing\"]\n";
1512 }
1513 $self->{repo_id} = $existing;
1514 } elsif ($_minimize_url) {
1515 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1516 $existing = find_existing_remote($min_url, $r);
1517 if ($existing) {
1518 unless ($no_write) {
1519 print STDERR "Using existing ",
1520 "[svn-remote \"$existing\"]\n";
1521 }
1522 $self->{repo_id} = $existing;
1523 }
1524 if ($min_url ne $url) {
1525 unless ($no_write) {
1526 print STDERR "Using higher level of URL: ",
1527 "$url => $min_url\n";
1528 }
1529 my $old_path = $self->{path};
1530 $self->{path} = $url;
1531 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1532 if (length $old_path) {
1533 $self->{path} .= "/$old_path";
1534 }
1535 $url = $min_url;
1536 }
1537 }
1538 my $orig_url;
1539 if (!$existing) {
1540 # verify that we aren't overwriting anything:
1541 $orig_url = eval {
1542 command_oneline('config', '--get',
1543 "svn-remote.$self->{repo_id}.url")
1544 };
1545 if ($orig_url && ($orig_url ne $url)) {
1546 die "svn-remote.$self->{repo_id}.url already set: ",
1547 "$orig_url\nwanted to set to: $url\n";
1548 }
1549 }
1550 my ($xrepo_id, $xpath) = find_ref($self->refname);
1551 if (defined $xpath) {
1552 die "svn-remote.$xrepo_id.fetch already set to track ",
1553 "$xpath:refs/remotes/", $self->refname, "\n";
1554 }
1555 unless ($no_write) {
1556 command_noisy('config',
1557 "svn-remote.$self->{repo_id}.url", $url);
1558 $self->{path} =~ s{^/}{};
1559 command_noisy('config', '--add',
1560 "svn-remote.$self->{repo_id}.fetch",
1561 "$self->{path}:".$self->refname);
1562 }
1563 $self->{url} = $url;
1564 }
1565
1566 sub find_by_url { # repos_root and, path are optional
1567 my ($class, $full_url, $repos_root, $path) = @_;
1568
1569 return undef unless defined $full_url;
1570 remove_username($full_url);
1571 remove_username($repos_root) if defined $repos_root;
1572 my $remotes = read_all_remotes();
1573 if (defined $full_url && defined $repos_root && !defined $path) {
1574 $path = $full_url;
1575 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1576 }
1577 foreach my $repo_id (keys %$remotes) {
1578 my $u = $remotes->{$repo_id}->{url} or next;
1579 remove_username($u);
1580 next if defined $repos_root && $repos_root ne $u;
1581
1582 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1583 foreach (qw/branches tags/) {
1584 resolve_local_globs($u, $fetch,
1585 $remotes->{$repo_id}->{$_});
1586 }
1587 my $p = $path;
1588 my $rwr = rewrite_root({repo_id => $repo_id});
1589 my $svm = $remotes->{$repo_id}->{svm}
1590 if defined $remotes->{$repo_id}->{svm};
1591 unless (defined $p) {
1592 $p = $full_url;
1593 my $z = $u;
1594 my $prefix = '';
1595 if ($rwr) {
1596 $z = $rwr;
1597 } elsif (defined $svm) {
1598 $z = $svm->{source};
1599 $prefix = $svm->{replace};
1600 $prefix =~ s#^\Q$u\E(?:/|$)##;
1601 $prefix =~ s#/$##;
1602 }
1603 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
1604 }
1605 foreach my $f (keys %$fetch) {
1606 next if $f ne $p;
1607 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1608 }
1609 }
1610 undef;
1611 }
1612
1613 sub init {
1614 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1615 my $self = _new($class, $repo_id, $ref_id, $path);
1616 if (defined $url) {
1617 $self->init_remote_config($url, $no_write);
1618 }
1619 $self;
1620 }
1621
1622 sub find_ref {
1623 my ($ref_id) = @_;
1624 foreach (command(qw/config -l/)) {
1625 next unless m!^svn-remote\.(.+)\.fetch=
1626 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1627 my ($repo_id, $path, $ref) = ($1, $2, $3);
1628 if ($ref eq $ref_id) {
1629 $path = '' if ($path =~ m#^\./?#);
1630 return ($repo_id, $path);
1631 }
1632 }
1633 (undef, undef, undef);
1634 }
1635
1636 sub new {
1637 my ($class, $ref_id, $repo_id, $path) = @_;
1638 if (defined $ref_id && !defined $repo_id && !defined $path) {
1639 ($repo_id, $path) = find_ref($ref_id);
1640 if (!defined $repo_id) {
1641 die "Could not find a \"svn-remote.*.fetch\" key ",
1642 "in the repository configuration matching: ",
1643 "refs/remotes/$ref_id\n";
1644 }
1645 }
1646 my $self = _new($class, $repo_id, $ref_id, $path);
1647 if (!defined $self->{path} || !length $self->{path}) {
1648 my $fetch = command_oneline('config', '--get',
1649 "svn-remote.$repo_id.fetch",
1650 ":refs/remotes/$ref_id\$") or
1651 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1652 "\":refs/remotes/$ref_id\$\" in config\n";
1653 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1654 }
1655 $self->{url} = command_oneline('config', '--get',
1656 "svn-remote.$repo_id.url") or
1657 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1658 $self->rebuild;
1659 $self;
1660 }
1661
1662 sub refname {
1663 my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
1664
1665 # It cannot end with a slash /, we'll throw up on this because
1666 # SVN can't have directories with a slash in their name, either:
1667 if ($refname =~ m{/$}) {
1668 die "ref: '$refname' ends with a trailing slash, this is ",
1669 "not permitted by git nor Subversion\n";
1670 }
1671
1672 # It cannot have ASCII control character space, tilde ~, caret ^,
1673 # colon :, question-mark ?, asterisk *, space, or open bracket [
1674 # anywhere.
1675 #
1676 # Additionally, % must be escaped because it is used for escaping
1677 # and we want our escaped refname to be reversible
1678 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
1679
1680 # no slash-separated component can begin with a dot .
1681 # /.* becomes /%2E*
1682 $refname =~ s{/\.}{/%2E}g;
1683
1684 # It cannot have two consecutive dots .. anywhere
1685 # .. becomes %2E%2E
1686 $refname =~ s{\.\.}{%2E%2E}g;
1687
1688 return $refname;
1689 }
1690
1691 sub desanitize_refname {
1692 my ($refname) = @_;
1693 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
1694 return $refname;
1695 }
1696
1697 sub svm_uuid {
1698 my ($self) = @_;
1699 return $self->{svm}->{uuid} if $self->svm;
1700 $self->ra;
1701 unless ($self->{svm}) {
1702 die "SVM UUID not cached, and reading remotely failed\n";
1703 }
1704 $self->{svm}->{uuid};
1705 }
1706
1707 sub svm {
1708 my ($self) = @_;
1709 return $self->{svm} if $self->{svm};
1710 my $svm;
1711 # see if we have it in our config, first:
1712 eval {
1713 my $section = "svn-remote.$self->{repo_id}";
1714 $svm = {
1715 source => tmp_config('--get', "$section.svm-source"),
1716 uuid => tmp_config('--get', "$section.svm-uuid"),
1717 replace => tmp_config('--get', "$section.svm-replace"),
1718 }
1719 };
1720 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1721 $self->{svm} = $svm;
1722 }
1723 $self->{svm};
1724 }
1725
1726 sub _set_svm_vars {
1727 my ($self, $ra) = @_;
1728 return $ra if $self->svm;
1729
1730 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1731 "(svm:source, svm:uuid) ",
1732 "from the following URLs:\n" );
1733 sub read_svm_props {
1734 my ($self, $ra, $path, $r) = @_;
1735 my $props = ($ra->get_dir($path, $r))[2];
1736 my $src = $props->{'svm:source'};
1737 my $uuid = $props->{'svm:uuid'};
1738 return undef if (!$src || !$uuid);
1739
1740 chomp($src, $uuid);
1741
1742 $uuid =~ m{^[0-9a-f\-]{30,}$}
1743 or die "doesn't look right - svm:uuid is '$uuid'\n";
1744
1745 # the '!' is used to mark the repos_root!/relative/path
1746 $src =~ s{/?!/?}{/};
1747 $src =~ s{/+$}{}; # no trailing slashes please
1748 # username is of no interest
1749 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1750
1751 my $replace = $ra->{url};
1752 $replace .= "/$path" if length $path;
1753
1754 my $section = "svn-remote.$self->{repo_id}";
1755 tmp_config("$section.svm-source", $src);
1756 tmp_config("$section.svm-replace", $replace);
1757 tmp_config("$section.svm-uuid", $uuid);
1758 $self->{svm} = {
1759 source => $src,
1760 uuid => $uuid,
1761 replace => $replace
1762 };
1763 }
1764
1765 my $r = $ra->get_latest_revnum;
1766 my $path = $self->{path};
1767 my %tried;
1768 while (length $path) {
1769 unless ($tried{"$self->{url}/$path"}) {
1770 return $ra if $self->read_svm_props($ra, $path, $r);
1771 $tried{"$self->{url}/$path"} = 1;
1772 }
1773 $path =~ s#/?[^/]+$##;
1774 }
1775 die "Path: '$path' should be ''\n" if $path ne '';
1776 return $ra if $self->read_svm_props($ra, $path, $r);
1777 $tried{"$self->{url}/$path"} = 1;
1778
1779 if ($ra->{repos_root} eq $self->{url}) {
1780 die @err, (map { " $_\n" } keys %tried), "\n";
1781 }
1782
1783 # nope, make sure we're connected to the repository root:
1784 my $ok;
1785 my @tried_b;
1786 $path = $ra->{svn_path};
1787 $ra = Git::SVN::Ra->new($ra->{repos_root});
1788 while (length $path) {
1789 unless ($tried{"$ra->{url}/$path"}) {
1790 $ok = $self->read_svm_props($ra, $path, $r);
1791 last if $ok;
1792 $tried{"$ra->{url}/$path"} = 1;
1793 }
1794 $path =~ s#/?[^/]+$##;
1795 }
1796 die "Path: '$path' should be ''\n" if $path ne '';
1797 $ok ||= $self->read_svm_props($ra, $path, $r);
1798 $tried{"$ra->{url}/$path"} = 1;
1799 if (!$ok) {
1800 die @err, (map { " $_\n" } keys %tried), "\n";
1801 }
1802 Git::SVN::Ra->new($self->{url});
1803 }
1804
1805 sub svnsync {
1806 my ($self) = @_;
1807 return $self->{svnsync} if $self->{svnsync};
1808
1809 if ($self->no_metadata) {
1810 die "Can't have both 'noMetadata' and ",
1811 "'useSvnsyncProps' options set!\n";
1812 }
1813 if ($self->rewrite_root) {
1814 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1815 "options set!\n";
1816 }
1817
1818 my $svnsync;
1819 # see if we have it in our config, first:
1820 eval {
1821 my $section = "svn-remote.$self->{repo_id}";
1822
1823 my $url = tmp_config('--get', "$section.svnsync-url");
1824 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1825 die "doesn't look right - svn:sync-from-url is '$url'\n";
1826
1827 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
1828 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1829 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1830
1831 $svnsync = { url => $url, uuid => $uuid }
1832 };
1833 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1834 return $self->{svnsync} = $svnsync;
1835 }
1836
1837 my $err = "useSvnsyncProps set, but failed to read " .
1838 "svnsync property: svn:sync-from-";
1839 my $rp = $self->ra->rev_proplist(0);
1840
1841 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1842 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1843 die "doesn't look right - svn:sync-from-url is '$url'\n";
1844
1845 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1846 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1847 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1848
1849 my $section = "svn-remote.$self->{repo_id}";
1850 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1851 tmp_config('--add', "$section.svnsync-url", $url);
1852 return $self->{svnsync} = { url => $url, uuid => $uuid };
1853 }
1854
1855 # this allows us to memoize our SVN::Ra UUID locally and avoid a
1856 # remote lookup (useful for 'git svn log').
1857 sub ra_uuid {
1858 my ($self) = @_;
1859 unless ($self->{ra_uuid}) {
1860 my $key = "svn-remote.$self->{repo_id}.uuid";
1861 my $uuid = eval { tmp_config('--get', $key) };
1862 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1863 $self->{ra_uuid} = $uuid;
1864 } else {
1865 die "ra_uuid called without URL\n" unless $self->{url};
1866 $self->{ra_uuid} = $self->ra->get_uuid;
1867 tmp_config('--add', $key, $self->{ra_uuid});
1868 }
1869 }
1870 $self->{ra_uuid};
1871 }
1872
1873 sub _set_repos_root {
1874 my ($self, $repos_root) = @_;
1875 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1876 $repos_root ||= $self->ra->{repos_root};
1877 tmp_config($k, $repos_root);
1878 $repos_root;
1879 }
1880
1881 sub repos_root {
1882 my ($self) = @_;
1883 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1884 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
1885 }
1886
1887 sub ra {
1888 my ($self) = shift;
1889 my $ra = Git::SVN::Ra->new($self->{url});
1890 $self->_set_repos_root($ra->{repos_root});
1891 if ($self->use_svm_props && !$self->{svm}) {
1892 if ($self->no_metadata) {
1893 die "Can't have both 'noMetadata' and ",
1894 "'useSvmProps' options set!\n";
1895 } elsif ($self->use_svnsync_props) {
1896 die "Can't have both 'useSvnsyncProps' and ",
1897 "'useSvmProps' options set!\n";
1898 }
1899 $ra = $self->_set_svm_vars($ra);
1900 $self->{-want_revprops} = 1;
1901 }
1902 $ra;
1903 }
1904
1905 sub rel_path {
1906 my ($self) = @_;
1907 my $repos_root = $self->ra->{repos_root};
1908 return $self->{path} if ($self->{url} eq $repos_root);
1909 my $url = $self->{url} .
1910 (length $self->{path} ? "/$self->{path}" : $self->{path});
1911 $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
1912 $url;
1913 }
1914
1915 # prop_walk(PATH, REV, SUB)
1916 # -------------------------
1917 # Recursively traverse PATH at revision REV and invoke SUB for each
1918 # directory that contains a SVN property. SUB will be invoked as
1919 # follows: &SUB(gs, path, props); where `gs' is this instance of
1920 # Git::SVN, `path' the path to the directory where the properties
1921 # `props' were found. The `path' will be relative to point of checkout,
1922 # that is, if url://repo/trunk is the current Git branch, and that
1923 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
1924 # as `path' (note the trailing `/').
1925 sub prop_walk {
1926 my ($self, $path, $rev, $sub) = @_;
1927
1928 $path =~ s#^/##;
1929 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
1930 $path =~ s#^/*#/#g;
1931 my $p = $path;
1932 # Strip the irrelevant part of the path.
1933 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
1934 # Ensure the path is terminated by a `/'.
1935 $p =~ s#/*$#/#;
1936
1937 # The properties contain all the internal SVN stuff nobody
1938 # (usually) cares about.
1939 my $interesting_props = 0;
1940 foreach (keys %{$props}) {
1941 # If it doesn't start with `svn:', it must be a
1942 # user-defined property.
1943 ++$interesting_props and next if $_ !~ /^svn:/;
1944 # FIXME: Fragile, if SVN adds new public properties,
1945 # this needs to be updated.
1946 ++$interesting_props if /^svn:(?:ignore|keywords|executable
1947 |eol-style|mime-type
1948 |externals|needs-lock)$/x;
1949 }
1950 &$sub($self, $p, $props) if $interesting_props;
1951
1952 foreach (sort keys %$dirent) {
1953 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
1954 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
1955 }
1956 }
1957
1958 sub last_rev { ($_[0]->last_rev_commit)[0] }
1959 sub last_commit { ($_[0]->last_rev_commit)[1] }
1960
1961 # returns the newest SVN revision number and newest commit SHA1
1962 sub last_rev_commit {
1963 my ($self) = @_;
1964 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1965 return ($self->{last_rev}, $self->{last_commit});
1966 }
1967 my $c = ::verify_ref($self->refname.'^0');
1968 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1969 my $rev = (::cmt_metadata($c))[1];
1970 if (defined $rev) {
1971 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1972 return ($rev, $c);
1973 }
1974 }
1975 my $map_path = $self->map_path;
1976 unless (-e $map_path) {
1977 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
1978 return (undef, undef);
1979 }
1980 my ($rev, $commit) = $self->rev_map_max(1);
1981 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
1982 return ($rev, $commit);
1983 }
1984
1985 sub get_fetch_range {
1986 my ($self, $min, $max) = @_;
1987 $max ||= $self->ra->get_latest_revnum;
1988 $min ||= $self->rev_map_max;
1989 (++$min, $max);
1990 }
1991
1992 sub tmp_config {
1993 my (@args) = @_;
1994 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
1995 my $config = "$ENV{GIT_DIR}/svn/.metadata";
1996 if (! -f $config && -f $old_def_config) {
1997 rename $old_def_config, $config or
1998 die "Failed rename $old_def_config => $config: $!\n";
1999 }
2000 my $old_config = $ENV{GIT_CONFIG};
2001 $ENV{GIT_CONFIG} = $config;
2002 $@ = undef;
2003 my @ret = eval {
2004 unless (-f $config) {
2005 mkfile($config);
2006 open my $fh, '>', $config or
2007 die "Can't open $config: $!\n";
2008 print $fh "; This file is used internally by ",
2009 "git-svn\n" or die
2010 "Couldn't write to $config: $!\n";
2011 print $fh "; You should not have to edit it\n" or
2012 die "Couldn't write to $config: $!\n";
2013 close $fh or die "Couldn't close $config: $!\n";
2014 }
2015 command('config', @args);
2016 };
2017 my $err = $@;
2018 if (defined $old_config) {
2019 $ENV{GIT_CONFIG} = $old_config;
2020 } else {
2021 delete $ENV{GIT_CONFIG};
2022 }
2023 die $err if $err;
2024 wantarray ? @ret : $ret[0];
2025 }
2026
2027 sub tmp_index_do {
2028 my ($self, $sub) = @_;
2029 my $old_index = $ENV{GIT_INDEX_FILE};
2030 $ENV{GIT_INDEX_FILE} = $self->{index};
2031 $@ = undef;
2032 my @ret = eval {
2033 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2034 mkpath([$dir]) unless -d $dir;
2035 &$sub;
2036 };
2037 my $err = $@;
2038 if (defined $old_index) {
2039 $ENV{GIT_INDEX_FILE} = $old_index;
2040 } else {
2041 delete $ENV{GIT_INDEX_FILE};
2042 }
2043 die $err if $err;
2044 wantarray ? @ret : $ret[0];
2045 }
2046
2047 sub assert_index_clean {
2048 my ($self, $treeish) = @_;
2049
2050 $self->tmp_index_do(sub {
2051 command_noisy('read-tree', $treeish) unless -e $self->{index};
2052 my $x = command_oneline('write-tree');
2053 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2054 /^tree ($::sha1)/mo);
2055 return if $y eq $x;
2056
2057 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2058 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2059 command_noisy('read-tree', $treeish);
2060 $x = command_oneline('write-tree');
2061 if ($y ne $x) {
2062 ::fatal "trees ($treeish) $y != $x\n",
2063 "Something is seriously wrong...";
2064 }
2065 });
2066 }
2067
2068 sub get_commit_parents {
2069 my ($self, $log_entry) = @_;
2070 my (%seen, @ret, @tmp);
2071 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2072 if (my $ip = $self->{inject_parents}) {
2073 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2074 push @tmp, $commit;
2075 }
2076 }
2077 if (my $cur = ::verify_ref($self->refname.'^0')) {
2078 push @tmp, $cur;
2079 }
2080 if (my $ipd = $self->{inject_parents_dcommit}) {
2081 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2082 push @tmp, @$commit;
2083 }
2084 }
2085 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2086 while (my $p = shift @tmp) {
2087 next if $seen{$p};
2088 $seen{$p} = 1;
2089 push @ret, $p;
2090 # MAXPARENT is defined to 16 in commit-tree.c:
2091 last if @ret >= 16;
2092 }
2093 if (@tmp) {
2094 die "r$log_entry->{revision}: No room for parents:\n\t",
2095 join("\n\t", @tmp), "\n";
2096 }
2097 @ret;
2098 }
2099
2100 sub rewrite_root {
2101 my ($self) = @_;
2102 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2103 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2104 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2105 if ($rwr) {
2106 $rwr =~ s#/+$##;
2107 if ($rwr !~ m#^[a-z\+]+://#) {
2108 die "$rwr is not a valid URL (key: $k)\n";
2109 }
2110 }
2111 $self->{-rewrite_root} = $rwr;
2112 }
2113
2114 sub metadata_url {
2115 my ($self) = @_;
2116 ($self->rewrite_root || $self->{url}) .
2117 (length $self->{path} ? '/' . $self->{path} : '');
2118 }
2119
2120 sub full_url {
2121 my ($self) = @_;
2122 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2123 }
2124
2125
2126 sub set_commit_header_env {
2127 my ($log_entry) = @_;
2128 my %env;
2129 foreach my $ned (qw/NAME EMAIL DATE/) {
2130 foreach my $ac (qw/AUTHOR COMMITTER/) {
2131 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2132 }
2133 }
2134
2135 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2136 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2137 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2138
2139 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2140 ? $log_entry->{commit_name}
2141 : $log_entry->{name};
2142 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2143 ? $log_entry->{commit_email}
2144 : $log_entry->{email};
2145 \%env;
2146 }
2147
2148 sub restore_commit_header_env {
2149 my ($env) = @_;
2150 foreach my $ned (qw/NAME EMAIL DATE/) {
2151 foreach my $ac (qw/AUTHOR COMMITTER/) {
2152 my $k = "GIT_${ac}_${ned}";
2153 if (defined $env->{$k}) {
2154 $ENV{$k} = $env->{$k};
2155 } else {
2156 delete $ENV{$k};
2157 }
2158 }
2159 }
2160 }
2161
2162 sub gc {
2163 command_noisy('gc', '--auto');
2164 };
2165
2166 sub do_git_commit {
2167 my ($self, $log_entry) = @_;
2168 my $lr = $self->last_rev;
2169 if (defined $lr && $lr >= $log_entry->{revision}) {
2170 die "Last fetched revision of ", $self->refname,
2171 " was r$lr, but we are about to fetch: ",
2172 "r$log_entry->{revision}!\n";
2173 }
2174 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2175 croak "$log_entry->{revision} = $c already exists! ",
2176 "Why are we refetching it?\n";
2177 }
2178 my $old_env = set_commit_header_env($log_entry);
2179 my $tree = $log_entry->{tree};
2180 if (!defined $tree) {
2181 $tree = $self->tmp_index_do(sub {
2182 command_oneline('write-tree') });
2183 }
2184 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2185
2186 my @exec = ('git-commit-tree', $tree);
2187 foreach ($self->get_commit_parents($log_entry)) {
2188 push @exec, '-p', $_;
2189 }
2190 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2191 or croak $!;
2192 print $msg_fh $log_entry->{log} or croak $!;
2193 restore_commit_header_env($old_env);
2194 unless ($self->no_metadata) {
2195 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2196 or croak $!;
2197 }
2198 $msg_fh->flush == 0 or croak $!;
2199 close $msg_fh or croak $!;
2200 chomp(my $commit = do { local $/; <$out_fh> });
2201 close $out_fh or croak $!;
2202 waitpid $pid, 0;
2203 croak $? if $?;
2204 if ($commit !~ /^$::sha1$/o) {
2205 die "Failed to commit, invalid sha1: $commit\n";
2206 }
2207
2208 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2209
2210 $self->{last_rev} = $log_entry->{revision};
2211 $self->{last_commit} = $commit;
2212 print "r$log_entry->{revision}";
2213 if (defined $log_entry->{svm_revision}) {
2214 print " (\@$log_entry->{svm_revision})";
2215 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2216 0, $self->svm_uuid);
2217 }
2218 print " = $commit ($self->{ref_id})\n";
2219 if (--$_gc_nr == 0) {
2220 $_gc_nr = $_gc_period;
2221 gc();
2222 }
2223 return $commit;
2224 }
2225
2226 sub match_paths {
2227 my ($self, $paths, $r) = @_;
2228 return 1 if $self->{path} eq '';
2229 if (my $path = $paths->{"/$self->{path}"}) {
2230 return ($path->{action} eq 'D') ? 0 : 1;
2231 }
2232 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2233 if (grep /$self->{path_regex}/, keys %$paths) {
2234 return 1;
2235 }
2236 my $c = '';
2237 foreach (split m#/#, $self->{path}) {
2238 $c .= "/$_";
2239 next unless ($paths->{$c} &&
2240 ($paths->{$c}->{action} =~ /^[AR]$/));
2241 if ($self->ra->check_path($self->{path}, $r) ==
2242 $SVN::Node::dir) {
2243 return 1;
2244 }
2245 }
2246 return 0;
2247 }
2248
2249 sub find_parent_branch {
2250 my ($self, $paths, $rev) = @_;
2251 return undef unless $self->follow_parent;
2252 unless (defined $paths) {
2253 my $err_handler = $SVN::Error::handler;
2254 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2255 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
2256 $paths =
2257 Git::SVN::Ra::dup_changed_paths($_[0]) });
2258 $SVN::Error::handler = $err_handler;
2259 }
2260 return undef unless defined $paths;
2261
2262 # look for a parent from another branch:
2263 my @b_path_components = split m#/#, $self->rel_path;
2264 my @a_path_components;
2265 my $i;
2266 while (@b_path_components) {
2267 $i = $paths->{'/'.join('/', @b_path_components)};
2268 last if $i && defined $i->{copyfrom_path};
2269 unshift(@a_path_components, pop(@b_path_components));
2270 }
2271 return undef unless defined $i && defined $i->{copyfrom_path};
2272 my $branch_from = $i->{copyfrom_path};
2273 if (@a_path_components) {
2274 print STDERR "branch_from: $branch_from => ";
2275 $branch_from .= '/'.join('/', @a_path_components);
2276 print STDERR $branch_from, "\n";
2277 }
2278 my $r = $i->{copyfrom_rev};
2279 my $repos_root = $self->ra->{repos_root};
2280 my $url = $self->ra->{url};
2281 my $new_url = $repos_root . $branch_from;
2282 print STDERR "Found possible branch point: ",
2283 "$new_url => ", $self->full_url, ", $r\n";
2284 $branch_from =~ s#^/##;
2285 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
2286 unless ($gs) {
2287 my $ref_id = $self->{ref_id};
2288 $ref_id =~ s/\@\d+$//;
2289 $ref_id .= "\@$r";
2290 # just grow a tail if we're not unique enough :x
2291 $ref_id .= '-' while find_ref($ref_id);
2292 print STDERR "Initializing parent: $ref_id\n";
2293 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2294 if ($u =~ s#^\Q$url\E(/|$)##) {
2295 $p = $u;
2296 $u = $url;
2297 $repo_id = $self->{repo_id};
2298 }
2299 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2300 }
2301 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2302 if (!defined $r0 || !defined $parent) {
2303 my ($base, $head) = parse_revision_argument(0, $r);
2304 if ($base <= $r) {
2305 $gs->fetch($base, $r);
2306 }
2307 ($r0, $parent) = $gs->last_rev_commit;
2308 }
2309 if (defined $r0 && defined $parent) {
2310 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
2311 my $ed;
2312 if ($self->ra->can_do_switch) {
2313 $self->assert_index_clean($parent);
2314 print STDERR "Following parent with do_switch\n";
2315 # do_switch works with svn/trunk >= r22312, but that
2316 # is not included with SVN 1.4.3 (the latest version
2317 # at the moment), so we can't rely on it
2318 $self->{last_commit} = $parent;
2319 $ed = SVN::Git::Fetcher->new($self);
2320 $gs->ra->gs_do_switch($r0, $rev, $gs,
2321 $self->full_url, $ed)
2322 or die "SVN connection failed somewhere...\n";
2323 } elsif ($self->ra->trees_match($new_url, $r0,
2324 $self->full_url, $rev)) {
2325 print STDERR "Trees match:\n",
2326 " $new_url\@$r0\n",
2327 " ${\$self->full_url}\@$rev\n",
2328 "Following parent with no changes\n";
2329 $self->tmp_index_do(sub {
2330 command_noisy('read-tree', $parent);
2331 });
2332 $self->{last_commit} = $parent;
2333 } else {
2334 print STDERR "Following parent with do_update\n";
2335 $ed = SVN::Git::Fetcher->new($self);
2336 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2337 or die "SVN connection failed somewhere...\n";
2338 }
2339 print STDERR "Successfully followed parent\n";
2340 return $self->make_log_entry($rev, [$parent], $ed);
2341 }
2342 return undef;
2343 }
2344
2345 sub do_fetch {
2346 my ($self, $paths, $rev) = @_;
2347 my $ed;
2348 my ($last_rev, @parents);
2349 if (my $lc = $self->last_commit) {
2350 # we can have a branch that was deleted, then re-added
2351 # under the same name but copied from another path, in
2352 # which case we'll have multiple parents (we don't
2353 # want to break the original ref, nor lose copypath info):
2354 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2355 push @{$log_entry->{parents}}, $lc;
2356 return $log_entry;
2357 }
2358 $ed = SVN::Git::Fetcher->new($self);
2359 $last_rev = $self->{last_rev};
2360 $ed->{c} = $lc;
2361 @parents = ($lc);
2362 } else {
2363 $last_rev = $rev;
2364 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2365 return $log_entry;
2366 }
2367 $ed = SVN::Git::Fetcher->new($self);
2368 }
2369 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2370 die "SVN connection failed somewhere...\n";
2371 }
2372 $self->make_log_entry($rev, \@parents, $ed);
2373 }
2374
2375 sub get_untracked {
2376 my ($self, $ed) = @_;
2377 my @out;
2378 my $h = $ed->{empty};
2379 foreach (sort keys %$h) {
2380 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2381 push @out, " $act: " . uri_encode($_);
2382 warn "W: $act: $_\n";
2383 }
2384 foreach my $t (qw/dir_prop file_prop/) {
2385 $h = $ed->{$t} or next;
2386 foreach my $path (sort keys %$h) {
2387 my $ppath = $path eq '' ? '.' : $path;
2388 foreach my $prop (sort keys %{$h->{$path}}) {
2389 next if $SKIP_PROP{$prop};
2390 my $v = $h->{$path}->{$prop};
2391 my $t_ppath_prop = "$t: " .
2392 uri_encode($ppath) . ' ' .
2393 uri_encode($prop);
2394 if (defined $v) {
2395 push @out, " +$t_ppath_prop " .
2396 uri_encode($v);
2397 } else {
2398 push @out, " -$t_ppath_prop";
2399 }
2400 }
2401 }
2402 }
2403 foreach my $t (qw/absent_file absent_directory/) {
2404 $h = $ed->{$t} or next;
2405 foreach my $parent (sort keys %$h) {
2406 foreach my $path (sort @{$h->{$parent}}) {
2407 push @out, " $t: " .
2408 uri_encode("$parent/$path");
2409 warn "W: $t: $parent/$path ",
2410 "Insufficient permissions?\n";
2411 }
2412 }
2413 }
2414 \@out;
2415 }
2416
2417 sub parse_svn_date {
2418 my $date = shift || return '+0000 1970-01-01 00:00:00';
2419 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2420 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
2421 croak "Unable to parse date: $date\n";
2422 "+0000 $Y-$m-$d $H:$M:$S";
2423 }
2424
2425 sub check_author {
2426 my ($author) = @_;
2427 if (!defined $author || length $author == 0) {
2428 $author = '(no author)';
2429 } elsif (defined $::_authors && ! defined $::users{$author}) {
2430 die "Author: $author not defined in $::_authors file\n";
2431 }
2432 $author;
2433 }
2434
2435 sub make_log_entry {
2436 my ($self, $rev, $parents, $ed) = @_;
2437 my $untracked = $self->get_untracked($ed);
2438
2439 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
2440 print $un "r$rev\n" or croak $!;
2441 print $un $_, "\n" foreach @$untracked;
2442 my %log_entry = ( parents => $parents || [], revision => $rev,
2443 log => '');
2444
2445 my $headrev;
2446 my $logged = delete $self->{logged_rev_props};
2447 if (!$logged || $self->{-want_revprops}) {
2448 my $rp = $self->ra->rev_proplist($rev);
2449 foreach (sort keys %$rp) {
2450 my $v = $rp->{$_};
2451 if (/^svn:(author|date|log)$/) {
2452 $log_entry{$1} = $v;
2453 } elsif ($_ eq 'svm:headrev') {
2454 $headrev = $v;
2455 } else {
2456 print $un " rev_prop: ", uri_encode($_), ' ',
2457 uri_encode($v), "\n";
2458 }
2459 }
2460 } else {
2461 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
2462 }
2463 close $un or croak $!;
2464
2465 $log_entry{date} = parse_svn_date($log_entry{date});
2466 $log_entry{log} .= "\n";
2467 my $author = $log_entry{author} = check_author($log_entry{author});
2468 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
2469 : ($author, undef);
2470
2471 my ($commit_name, $commit_email) = ($name, $email);
2472 if ($_use_log_author) {
2473 my $name_field;
2474 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
2475 $name_field = $1;
2476 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
2477 $name_field = $1;
2478 }
2479 if (!defined $name_field) {
2480 if (!defined $email) {
2481 $email = $name;
2482 }
2483 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
2484 ($name, $email) = ($1, $2);
2485 } elsif ($name_field =~ /(.*)@/) {
2486 ($name, $email) = ($1, $name_field);
2487 } else {
2488 ($name, $email) = ($name_field, $name_field);
2489 }
2490 }
2491 if (defined $headrev && $self->use_svm_props) {
2492 if ($self->rewrite_root) {
2493 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
2494 "options set!\n";
2495 }
2496 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
2497 # we don't want "SVM: initializing mirror for junk" ...
2498 return undef if $r == 0;
2499 my $svm = $self->svm;
2500 if ($uuid ne $svm->{uuid}) {
2501 die "UUID mismatch on SVM path:\n",
2502 "expected: $svm->{uuid}\n",
2503 " got: $uuid\n";
2504 }
2505 my $full_url = $self->full_url;
2506 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
2507 die "Failed to replace '$svm->{replace}' with ",
2508 "'$svm->{source}' in $full_url\n";
2509 # throw away username for storing in records
2510 remove_username($full_url);
2511 $log_entry{metadata} = "$full_url\@$r $uuid";
2512 $log_entry{svm_revision} = $r;
2513 $email ||= "$author\@$uuid";
2514 $commit_email ||= "$author\@$uuid";
2515 } elsif ($self->use_svnsync_props) {
2516 my $full_url = $self->svnsync->{url};
2517 $full_url .= "/$self->{path}" if length $self->{path};
2518 remove_username($full_url);
2519 my $uuid = $self->svnsync->{uuid};
2520 $log_entry{metadata} = "$full_url\@$rev $uuid";
2521 $email ||= "$author\@$uuid";
2522 $commit_email ||= "$author\@$uuid";
2523 } else {
2524 my $url = $self->metadata_url;
2525 remove_username($url);
2526 $log_entry{metadata} = "$url\@$rev " .
2527 $self->ra->get_uuid;
2528 $email ||= "$author\@" . $self->ra->get_uuid;
2529 $commit_email ||= "$author\@" . $self->ra->get_uuid;
2530 }
2531 $log_entry{name} = $name;
2532 $log_entry{email} = $email;
2533 $log_entry{commit_name} = $commit_name;
2534 $log_entry{commit_email} = $commit_email;
2535 \%log_entry;
2536 }
2537
2538 sub fetch {
2539 my ($self, $min_rev, $max_rev, @parents) = @_;
2540 my ($last_rev, $last_commit) = $self->last_rev_commit;
2541 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
2542 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
2543 }
2544
2545 sub set_tree_cb {
2546 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2547 $self->{inject_parents} = { $rev => $tree };
2548 $self->fetch(undef, undef);
2549 }
2550
2551 sub set_tree {
2552 my ($self, $tree) = (shift, shift);
2553 my $log_entry = ::get_commit_entry($tree);
2554 unless ($self->{last_rev}) {
2555 fatal("Must have an existing revision to commit");
2556 }
2557 my %ed_opts = ( r => $self->{last_rev},
2558 log => $log_entry->{log},
2559 ra => $self->ra,
2560 tree_a => $self->{last_commit},
2561 tree_b => $tree,
2562 editor_cb => sub {
2563 $self->set_tree_cb($log_entry, $tree, @_) },
2564 svn_path => $self->{path} );
2565 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
2566 print "No changes\nr$self->{last_rev} = $tree\n";
2567 }
2568 }
2569
2570 sub rebuild_from_rev_db {
2571 my ($self, $path) = @_;
2572 my $r = -1;
2573 open my $fh, '<', $path or croak "open: $!";
2574 binmode $fh or croak "binmode: $!";
2575 while (<$fh>) {
2576 length($_) == 41 or croak "inconsistent size in ($_) != 41";
2577 chomp($_);
2578 ++$r;
2579 next if $_ eq ('0' x 40);
2580 $self->rev_map_set($r, $_);
2581 print "r$r = $_\n";
2582 }
2583 close $fh or croak "close: $!";
2584 unlink $path or croak "unlink: $!";
2585 }
2586
2587 sub rebuild {
2588 my ($self) = @_;
2589 my $map_path = $self->map_path;
2590 return if (-e $map_path && ! -z $map_path);
2591 return unless ::verify_ref($self->refname.'^0');
2592 if ($self->use_svm_props || $self->no_metadata) {
2593 my $rev_db = $self->rev_db_path;
2594 $self->rebuild_from_rev_db($rev_db);
2595 if ($self->use_svm_props) {
2596 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
2597 $self->rebuild_from_rev_db($svm_rev_db);
2598 }
2599 $self->unlink_rev_db_symlink;
2600 return;
2601 }
2602 print "Rebuilding $map_path ...\n";
2603 my ($log, $ctx) =
2604 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
2605 $self->refname, '--');
2606 my $metadata_url = $self->metadata_url;
2607 remove_username($metadata_url);
2608 my $svn_uuid = $self->ra_uuid;
2609 my $c;
2610 while (<$log>) {
2611 if ( m{^commit ($::sha1)$} ) {
2612 $c = $1;
2613 next;
2614 }
2615 next unless s{^\s*(git-svn-id:)}{$1};
2616 my ($url, $rev, $uuid) = ::extract_metadata($_);
2617 remove_username($url);
2618
2619 # ignore merges (from set-tree)
2620 next if (!defined $rev || !$uuid);
2621
2622 # if we merged or otherwise started elsewhere, this is
2623 # how we break out of it
2624 if (($uuid ne $svn_uuid) ||
2625 ($metadata_url && $url && ($url ne $metadata_url))) {
2626 next;
2627 }
2628
2629 $self->rev_map_set($rev, $c);
2630 print "r$rev = $c\n";
2631 }
2632 command_close_pipe($log, $ctx);
2633 print "Done rebuilding $map_path\n";
2634 my $rev_db_path = $self->rev_db_path;
2635 if (-f $self->rev_db_path) {
2636 unlink $self->rev_db_path or croak "unlink: $!";
2637 }
2638 $self->unlink_rev_db_symlink;
2639 }
2640
2641 # rev_map:
2642 # Tie::File seems to be prone to offset errors if revisions get sparse,
2643 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
2644 # one of my favorite modules is out :< Next up would be one of the DBM
2645 # modules, but I'm not sure which is most portable...
2646 #
2647 # This is the replacement for the rev_db format, which was too big
2648 # and inefficient for large repositories with a lot of sparse history
2649 # (mainly tags)
2650 #
2651 # The format is this:
2652 # - 24 bytes for every record,
2653 # * 4 bytes for the integer representing an SVN revision number
2654 # * 20 bytes representing the sha1 of a git commit
2655 # - No empty padding records like the old format
2656 # (except the last record, which can be overwritten)
2657 # - new records are written append-only since SVN revision numbers
2658 # increase monotonically
2659 # - lookups on SVN revision number are done via a binary search
2660 # - Piping the file to xxd -c24 is a good way of dumping it for
2661 # viewing or editing (piped back through xxd -r), should the need
2662 # ever arise.
2663 # - The last record can be padding revision with an all-zero sha1
2664 # This is used to optimize fetch performance when using multiple
2665 # "fetch" directives in .git/config
2666 #
2667 # These files are disposable unless noMetadata or useSvmProps is set
2668
2669 sub _rev_map_set {
2670 my ($fh, $rev, $commit) = @_;
2671
2672 binmode $fh or croak "binmode: $!";
2673 my $size = (stat($fh))[7];
2674 ($size % 24) == 0 or croak "inconsistent size: $size";
2675
2676 my $wr_offset = 0;
2677 if ($size > 0) {
2678 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2679 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
2680 $read == 24 or croak "read only $read bytes (!= 24)";
2681 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
2682 if ($last_commit eq ('0' x40)) {
2683 if ($size >= 48) {
2684 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2685 $read = sysread($fh, $buf, 24) or
2686 croak "read: $!";
2687 $read == 24 or
2688 croak "read only $read bytes (!= 24)";
2689 ($last_rev, $last_commit) =
2690 unpack(rev_map_fmt, $buf);
2691 if ($last_commit eq ('0' x40)) {
2692 croak "inconsistent .rev_map\n";
2693 }
2694 }
2695 if ($last_rev >= $rev) {
2696 croak "last_rev is higher!: $last_rev >= $rev";
2697 }
2698 $wr_offset = -24;
2699 }
2700 }
2701 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
2702 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
2703 croak "write: $!";
2704 }
2705
2706 sub mkfile {
2707 my ($path) = @_;
2708 unless (-e $path) {
2709 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2710 mkpath([$dir]) unless -d $dir;
2711 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2712 close $fh or die "Couldn't close (create) $path: $!\n";
2713 }
2714 }
2715
2716 sub rev_map_set {
2717 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2718 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2719 my $db = $self->map_path($uuid);
2720 my $db_lock = "$db.lock";
2721 my $sig;
2722 if ($update_ref) {
2723 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2724 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
2725 }
2726 mkfile($db);
2727
2728 $LOCKFILES{$db_lock} = 1;
2729 my $sync;
2730 # both of these options make our .rev_db file very, very important
2731 # and we can't afford to lose it because rebuild() won't work
2732 if ($self->use_svm_props || $self->no_metadata) {
2733 $sync = 1;
2734 copy($db, $db_lock) or die "rev_map_set(@_): ",
2735 "Failed to copy: ",
2736 "$db => $db_lock ($!)\n";
2737 } else {
2738 rename $db, $db_lock or die "rev_map_set(@_): ",
2739 "Failed to rename: ",
2740 "$db => $db_lock ($!)\n";
2741 }
2742
2743 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
2744 or croak "Couldn't open $db_lock: $!\n";
2745 _rev_map_set($fh, $rev, $commit);
2746 if ($sync) {
2747 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2748 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2749 }
2750 close $fh or croak $!;
2751 if ($update_ref) {
2752 $_head = $self;
2753 command_noisy('update-ref', '-m', "r$rev",
2754 $self->refname, $commit);
2755 }
2756 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
2757 "$db_lock => $db ($!)\n";
2758 delete $LOCKFILES{$db_lock};
2759 if ($update_ref) {
2760 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2761 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2762 kill $sig, $$ if defined $sig;
2763 }
2764 }
2765
2766 # If want_commit, this will return an array of (rev, commit) where
2767 # commit _must_ be a valid commit in the archive.
2768 # Otherwise, it'll return the max revision (whether or not the
2769 # commit is valid or just a 0x40 placeholder).
2770 sub rev_map_max {
2771 my ($self, $want_commit) = @_;
2772 $self->rebuild;
2773 my $map_path = $self->map_path;
2774 stat $map_path or return $want_commit ? (0, undef) : 0;
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: $!";
2782 return $want_commit ? (0, undef) : 0;
2783 }
2784
2785 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2786 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2787 my ($r, $c) = unpack(rev_map_fmt, $buf);
2788 if ($want_commit && $c eq ('0' x40)) {
2789 if ($size < 48) {
2790 return $want_commit ? (0, undef) : 0;
2791 }
2792 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2793 sysread($fh, $buf, 24) == 24 or croak "read: $!";
2794 ($r, $c) = unpack(rev_map_fmt, $buf);
2795 if ($c eq ('0'x40)) {
2796 croak "Penultimate record is all-zeroes in $map_path";
2797 }
2798 }
2799 close $fh or croak "close: $!";
2800 $want_commit ? ($r, $c) : $r;
2801 }
2802
2803 sub rev_map_get {
2804 my ($self, $rev, $uuid) = @_;
2805 my $map_path = $self->map_path($uuid);
2806 return undef unless -e $map_path;
2807
2808 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2809 binmode $fh or croak "binmode: $!";
2810 my $size = (stat($fh))[7];
2811 ($size % 24) == 0 or croak "inconsistent size: $size";
2812
2813 if ($size == 0) {
2814 close $fh or croak "close: $fh";
2815 return undef;
2816 }
2817
2818 my ($l, $u) = (0, $size - 24);
2819 my ($r, $c, $buf);
2820
2821 while ($l <= $u) {
2822 my $i = int(($l/24 + $u/24) / 2) * 24;
2823 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
2824 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2825 my ($r, $c) = unpack('NH40', $buf);
2826
2827 if ($r < $rev) {
2828 $l = $i + 24;
2829 } elsif ($r > $rev) {
2830 $u = $i - 24;
2831 } else { # $r == $rev
2832 close($fh) or croak "close: $!";
2833 return $c eq ('0' x 40) ? undef : $c;
2834 }
2835 }
2836 close($fh) or croak "close: $!";
2837 undef;
2838 }
2839
2840 # Finds the first svn revision that exists on (if $eq_ok is true) or
2841 # before $rev for the current branch. It will not search any lower
2842 # than $min_rev. Returns the git commit hash and svn revision number
2843 # if found, else (undef, undef).
2844 sub find_rev_before {
2845 my ($self, $rev, $eq_ok, $min_rev) = @_;
2846 --$rev unless $eq_ok;
2847 $min_rev ||= 1;
2848 while ($rev >= $min_rev) {
2849 if (my $c = $self->rev_map_get($rev)) {
2850 return ($rev, $c);
2851 }
2852 --$rev;
2853 }
2854 return (undef, undef);
2855 }
2856
2857 # Finds the first svn revision that exists on (if $eq_ok is true) or
2858 # after $rev for the current branch. It will not search any higher
2859 # than $max_rev. Returns the git commit hash and svn revision number
2860 # if found, else (undef, undef).
2861 sub find_rev_after {
2862 my ($self, $rev, $eq_ok, $max_rev) = @_;
2863 ++$rev unless $eq_ok;
2864 $max_rev ||= $self->rev_map_max;
2865 while ($rev <= $max_rev) {
2866 if (my $c = $self->rev_map_get($rev)) {
2867 return ($rev, $c);
2868 }
2869 ++$rev;
2870 }
2871 return (undef, undef);
2872 }
2873
2874 sub _new {
2875 my ($class, $repo_id, $ref_id, $path) = @_;
2876 unless (defined $repo_id && length $repo_id) {
2877 $repo_id = $Git::SVN::default_repo_id;
2878 }
2879 unless (defined $ref_id && length $ref_id) {
2880 $_[2] = $ref_id = $Git::SVN::default_ref_id;
2881 }
2882 $_[1] = $repo_id;
2883 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2884 $_[3] = $path = '' unless (defined $path);
2885 mkpath(["$ENV{GIT_DIR}/svn"]);
2886 bless {
2887 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2888 path => $path, config => "$ENV{GIT_DIR}/svn/config",
2889 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
2890 }
2891
2892 # for read-only access of old .rev_db formats
2893 sub unlink_rev_db_symlink {
2894 my ($self) = @_;
2895 my $link = $self->rev_db_path;
2896 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
2897 if (-l $link) {
2898 unlink $link or croak "unlink: $link failed!";
2899 }
2900 }
2901
2902 sub rev_db_path {
2903 my ($self, $uuid) = @_;
2904 my $db_path = $self->map_path($uuid);
2905 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
2906 or croak "map_path: $db_path does not contain '/.rev_map.' !";
2907 $db_path;
2908 }
2909
2910 # the new replacement for .rev_db
2911 sub map_path {
2912 my ($self, $uuid) = @_;
2913 $uuid ||= $self->ra_uuid;
2914 "$self->{map_root}.$uuid";
2915 }
2916
2917 sub uri_encode {
2918 my ($f) = @_;
2919 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2920 $f
2921 }
2922
2923 sub remove_username {
2924 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
2925 }
2926
2927 package Git::SVN::Prompt;
2928 use strict;
2929 use warnings;
2930 require SVN::Core;
2931 use vars qw/$_no_auth_cache $_username/;
2932
2933 sub simple {
2934 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2935 $may_save = undef if $_no_auth_cache;
2936 $default_username = $_username if defined $_username;
2937 if (defined $default_username && length $default_username) {
2938 if (defined $realm && length $realm) {
2939 print STDERR "Authentication realm: $realm\n";
2940 STDERR->flush;
2941 }
2942 $cred->username($default_username);
2943 } else {
2944 username($cred, $realm, $may_save, $pool);
2945 }
2946 $cred->password(_read_password("Password for '" .
2947 $cred->username . "': ", $realm));
2948 $cred->may_save($may_save);
2949 $SVN::_Core::SVN_NO_ERROR;
2950 }
2951
2952 sub ssl_server_trust {
2953 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2954 $may_save = undef if $_no_auth_cache;
2955 print STDERR "Error validating server certificate for '$realm':\n";
2956 {
2957 no warnings 'once';
2958 # All variables SVN::Auth::SSL::* are used only once,
2959 # so we're shutting up Perl warnings about this.
2960 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2961 print STDERR " - The certificate is not issued ",
2962 "by a trusted authority. Use the\n",
2963 " fingerprint to validate ",
2964 "the certificate manually!\n";
2965 }
2966 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2967 print STDERR " - The certificate hostname ",
2968 "does not match.\n";
2969 }
2970 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2971 print STDERR " - The certificate is not yet valid.\n";
2972 }
2973 if ($failures & $SVN::Auth::SSL::EXPIRED) {
2974 print STDERR " - The certificate has expired.\n";
2975 }
2976 if ($failures & $SVN::Auth::SSL::OTHER) {
2977 print STDERR " - The certificate has ",
2978 "an unknown error.\n";
2979 }
2980 } # no warnings 'once'
2981 printf STDERR
2982 "Certificate information:\n".
2983 " - Hostname: %s\n".
2984 " - Valid: from %s until %s\n".
2985 " - Issuer: %s\n".
2986 " - Fingerprint: %s\n",
2987 map $cert_info->$_, qw(hostname valid_from valid_until
2988 issuer_dname fingerprint);
2989 my $choice;
2990 prompt:
2991 print STDERR $may_save ?
2992 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
2993 "(R)eject or accept (t)emporarily? ";
2994 STDERR->flush;
2995 $choice = lc(substr(<STDIN> || 'R', 0, 1));
2996 if ($choice =~ /^t$/i) {
2997 $cred->may_save(undef);
2998 } elsif ($choice =~ /^r$/i) {
2999 return -1;
3000 } elsif ($may_save && $choice =~ /^p$/i) {
3001 $cred->may_save($may_save);
3002 } else {
3003 goto prompt;
3004 }
3005 $cred->accepted_failures($failures);
3006 $SVN::_Core::SVN_NO_ERROR;
3007 }
3008
3009 sub ssl_client_cert {
3010 my ($cred, $realm, $may_save, $pool) = @_;
3011 $may_save = undef if $_no_auth_cache;
3012 print STDERR "Client certificate filename: ";
3013 STDERR->flush;
3014 chomp(my $filename = <STDIN>);
3015 $cred->cert_file($filename);
3016 $cred->may_save($may_save);
3017 $SVN::_Core::SVN_NO_ERROR;
3018 }
3019
3020 sub ssl_client_cert_pw {
3021 my ($cred, $realm, $may_save, $pool) = @_;
3022 $may_save = undef if $_no_auth_cache;
3023 $cred->password(_read_password("Password: ", $realm));
3024 $cred->may_save($may_save);
3025 $SVN::_Core::SVN_NO_ERROR;
3026 }
3027
3028 sub username {
3029 my ($cred, $realm, $may_save, $pool) = @_;
3030 $may_save = undef if $_no_auth_cache;
3031 if (defined $realm && length $realm) {
3032 print STDERR "Authentication realm: $realm\n";
3033 }
3034 my $username;
3035 if (defined $_username) {
3036 $username = $_username;
3037 } else {
3038 print STDERR "Username: ";
3039 STDERR->flush;
3040 chomp($username = <STDIN>);
3041 }
3042 $cred->username($username);
3043 $cred->may_save($may_save);
3044 $SVN::_Core::SVN_NO_ERROR;
3045 }
3046
3047 sub _read_password {
3048 my ($prompt, $realm) = @_;
3049 print STDERR $prompt;
3050 STDERR->flush;
3051 require Term::ReadKey;
3052 Term::ReadKey::ReadMode('noecho');
3053 my $password = '';
3054 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3055 last if $key =~ /[\012\015]/; # \n\r
3056 $password .= $key;
3057 }
3058 Term::ReadKey::ReadMode('restore');
3059 print STDERR "\n";
3060 STDERR->flush;
3061 $password;
3062 }
3063
3064 package SVN::Git::Fetcher;
3065 use vars qw/@ISA/;
3066 use strict;
3067 use warnings;
3068 use Carp qw/croak/;
3069 use File::Temp qw/tempfile/;
3070 use IO::File qw//;
3071
3072 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3073 sub new {
3074 my ($class, $git_svn) = @_;
3075 my $self = SVN::Delta::Editor->new;
3076 bless $self, $class;
3077 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
3078 $self->{empty} = {};
3079 $self->{dir_prop} = {};
3080 $self->{file_prop} = {};
3081 $self->{absent_dir} = {};
3082 $self->{absent_file} = {};
3083 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3084 $self;
3085 }
3086
3087 sub set_path_strip {
3088 my ($self, $path) = @_;
3089 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3090 }
3091
3092 sub open_root {
3093 { path => '' };
3094 }
3095
3096 sub open_directory {
3097 my ($self, $path, $pb, $rev) = @_;
3098 { path => $path };
3099 }
3100
3101 sub git_path {
3102 my ($self, $path) = @_;
3103 if ($self->{path_strip}) {
3104 $path =~ s!$self->{path_strip}!! or
3105 die "Failed to strip path '$path' ($self->{path_strip})\n";
3106 }
3107 $path;
3108 }
3109
3110 sub delete_entry {
3111 my ($self, $path, $rev, $pb) = @_;
3112
3113 my $gpath = $self->git_path($path);
3114 return undef if ($gpath eq '');
3115
3116 # remove entire directories.
3117 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
3118 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3119 -r --name-only -z/,
3120 $self->{c}, '--', $gpath);
3121 local $/ = "\0";
3122 while (<$ls>) {
3123 chomp;
3124 $self->{gii}->remove($_);
3125 print "\tD\t$_\n" unless $::_q;
3126 }
3127 print "\tD\t$gpath/\n" unless $::_q;
3128 command_close_pipe($ls, $ctx);
3129 $self->{empty}->{$path} = 0
3130 } else {
3131 $self->{gii}->remove($gpath);
3132 print "\tD\t$gpath\n" unless $::_q;
3133 }
3134 undef;
3135 }
3136
3137 sub open_file {
3138 my ($self, $path, $pb, $rev) = @_;
3139 my $gpath = $self->git_path($path);
3140 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
3141 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
3142 unless (defined $mode && defined $blob) {
3143 die "$path was not found in commit $self->{c} (r$rev)\n";
3144 }
3145 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3146 pool => SVN::Pool->new, action => 'M' };
3147 }
3148
3149 sub add_file {
3150 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3151 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3152 delete $self->{empty}->{$dir};
3153 { path => $path, mode_a => 100644, mode_b => 100644,
3154 pool => SVN::Pool->new, action => 'A' };
3155 }
3156
3157 sub add_directory {
3158 my ($self, $path, $cp_path, $cp_rev) = @_;
3159 my $gpath = $self->git_path($path);
3160 if ($gpath eq '') {
3161 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3162 -r --name-only -z/,
3163 $self->{c});
3164 local $/ = "\0";
3165 while (<$ls>) {
3166 chomp;
3167 $self->{gii}->remove($_);
3168 print "\tD\t$_\n" unless $::_q;
3169 }
3170 command_close_pipe($ls, $ctx);
3171 $self->{empty}->{$path} = 0;
3172 }
3173 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3174 delete $self->{empty}->{$dir};
3175 $self->{empty}->{$path} = 1;
3176 { path => $path };
3177 }
3178
3179 sub change_dir_prop {
3180 my ($self, $db, $prop, $value) = @_;
3181 $self->{dir_prop}->{$db->{path}} ||= {};
3182 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
3183 undef;
3184 }
3185
3186 sub absent_directory {
3187 my ($self, $path, $pb) = @_;
3188 $self->{absent_dir}->{$pb->{path}} ||= [];
3189 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
3190 undef;
3191 }
3192
3193 sub absent_file {
3194 my ($self, $path, $pb) = @_;
3195 $self->{absent_file}->{$pb->{path}} ||= [];
3196 push @{$self->{absent_file}->{$pb->{path}}}, $path;
3197 undef;
3198 }
3199
3200 sub change_file_prop {
3201 my ($self, $fb, $prop, $value) = @_;
3202 if ($prop eq 'svn:executable') {
3203 if ($fb->{mode_b} != 120000) {
3204 $fb->{mode_b} = defined $value ? 100755 : 100644;
3205 }
3206 } elsif ($prop eq 'svn:special') {
3207 $fb->{mode_b} = defined $value ? 120000 : 100644;
3208 } else {
3209 $self->{file_prop}->{$fb->{path}} ||= {};
3210 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
3211 }
3212 undef;
3213 }
3214
3215 sub apply_textdelta {
3216 my ($self, $fb, $exp) = @_;
3217 my $fh = IO::File->new_tmpfile;
3218 $fh->autoflush(1);
3219 # $fh gets auto-closed() by SVN::TxDelta::apply(),
3220 # (but $base does not,) so dup() it for reading in close_file
3221 open my $dup, '<&', $fh or croak $!;
3222 my $base = IO::File->new_tmpfile;
3223 $base->autoflush(1);
3224 if ($fb->{blob}) {
3225 print $base 'link ' if ($fb->{mode_a} == 120000);
3226 my $size = $::_repository->cat_blob($fb->{blob}, $base);
3227 die "Failed to read object $fb->{blob}" if ($size < 0);
3228
3229 if (defined $exp) {
3230 seek $base, 0, 0 or croak $!;
3231 my $got = ::md5sum($base);
3232 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
3233 "expected: $exp\n",
3234 " got: $got\n" if ($got ne $exp);
3235 }
3236 }
3237 seek $base, 0, 0 or croak $!;
3238 $fb->{fh} = $dup;
3239 $fb->{base} = $base;
3240 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
3241 }
3242
3243 sub close_file {
3244 my ($self, $fb, $exp) = @_;
3245 my $hash;
3246 my $path = $self->git_path($fb->{path});
3247 if (my $fh = $fb->{fh}) {
3248 if (defined $exp) {
3249 seek($fh, 0, 0) or croak $!;
3250 my $got = ::md5sum($fh);
3251 if ($got ne $exp) {
3252 die "Checksum mismatch: $path\n",
3253 "expected: $exp\n got: $got\n";
3254 }
3255 }
3256 sysseek($fh, 0, 0) or croak $!;
3257 if ($fb->{mode_b} == 120000) {
3258 eval {
3259 sysread($fh, my $buf, 5) == 5 or croak $!;
3260 $buf eq 'link ' or die "$path has mode 120000",
3261 " but is not a link";
3262 };
3263 if ($@) {
3264 warn "$@\n";
3265 sysseek($fh, 0, 0) or croak $!;
3266 }
3267 }
3268
3269 my ($tmp_fh, $tmp_filename) = File::Temp::tempfile(UNLINK => 1);
3270 my $result;
3271 while ($result = sysread($fh, my $string, 1024)) {
3272 my $wrote = syswrite($tmp_fh, $string, $result);
3273 defined($wrote) && $wrote == $result
3274 or croak("write $tmp_filename: $!\n");
3275 }
3276 defined $result or croak $!;
3277 close $tmp_fh or croak $!;
3278
3279 close $fh or croak $!;
3280
3281 $hash = $::_repository->hash_and_insert_object($tmp_filename);
3282 unlink($tmp_filename);
3283 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
3284 close $fb->{base} or croak $!;
3285 } else {
3286 $hash = $fb->{blob} or die "no blob information\n";
3287 }
3288 $fb->{pool}->clear;
3289 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
3290 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
3291 undef;
3292 }
3293
3294 sub abort_edit {
3295 my $self = shift;
3296 $self->{nr} = $self->{gii}->{nr};
3297 delete $self->{gii};
3298 $self->SUPER::abort_edit(@_);
3299 }
3300
3301 sub close_edit {
3302 my $self = shift;
3303 $self->{git_commit_ok} = 1;
3304 $self->{nr} = $self->{gii}->{nr};
3305 delete $self->{gii};
3306 $self->SUPER::close_edit(@_);
3307 }
3308
3309 package SVN::Git::Editor;
3310 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
3311 use strict;
3312 use warnings;
3313 use Carp qw/croak/;
3314 use IO::File;
3315
3316 sub new {
3317 my ($class, $opts) = @_;
3318 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
3319 die "$_ required!\n" unless (defined $opts->{$_});
3320 }
3321
3322 my $pool = SVN::Pool->new;
3323 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
3324 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
3325 $opts->{r}, $mods);
3326
3327 # $opts->{ra} functions should not be used after this:
3328 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
3329 $opts->{editor_cb}, $pool);
3330 my $self = SVN::Delta::Editor->new(@ce, $pool);
3331 bless $self, $class;
3332 foreach (qw/svn_path r tree_a tree_b/) {
3333 $self->{$_} = $opts->{$_};
3334 }
3335 $self->{url} = $opts->{ra}->{url};
3336 $self->{mods} = $mods;
3337 $self->{types} = $types;
3338 $self->{pool} = $pool;
3339 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
3340 $self->{rm} = { };
3341 $self->{path_prefix} = length $self->{svn_path} ?
3342 "$self->{svn_path}/" : '';
3343 return $self;
3344 }
3345
3346 sub generate_diff {
3347 my ($tree_a, $tree_b) = @_;
3348 my @diff_tree = qw(diff-tree -z -r);
3349 if ($_cp_similarity) {
3350 push @diff_tree, "-C$_cp_similarity";
3351 } else {
3352 push @diff_tree, '-C';
3353 }
3354 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
3355 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
3356 push @diff_tree, $tree_a, $tree_b;
3357 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
3358 local $/ = "\0";
3359 my $state = 'meta';
3360 my @mods;
3361 while (<$diff_fh>) {
3362 chomp $_; # this gets rid of the trailing "\0"
3363 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
3364 $::sha1\s($::sha1)\s
3365 ([MTCRAD])\d*$/xo) {
3366 push @mods, { mode_a => $1, mode_b => $2,
3367 sha1_b => $3, chg => $4 };
3368 if ($4 =~ /^(?:C|R)$/) {
3369 $state = 'file_a';
3370 } else {
3371 $state = 'file_b';
3372 }
3373 } elsif ($state eq 'file_a') {
3374 my $x = $mods[$#mods] or croak "Empty array\n";
3375 if ($x->{chg} !~ /^(?:C|R)$/) {
3376 croak "Error parsing $_, $x->{chg}\n";
3377 }
3378 $x->{file_a} = $_;
3379 $state = 'file_b';
3380 } elsif ($state eq 'file_b') {
3381 my $x = $mods[$#mods] or croak "Empty array\n";
3382 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
3383 croak "Error parsing $_, $x->{chg}\n";
3384 }
3385 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
3386 croak "Error parsing $_, $x->{chg}\n";
3387 }
3388 $x->{file_b} = $_;
3389 $state = 'meta';
3390 } else {
3391 croak "Error parsing $_\n";
3392 }
3393 }
3394 command_close_pipe($diff_fh, $ctx);
3395 \@mods;
3396 }
3397
3398 sub check_diff_paths {
3399 my ($ra, $pfx, $rev, $mods) = @_;
3400 my %types;
3401 $pfx .= '/' if length $pfx;
3402
3403 sub type_diff_paths {
3404 my ($ra, $types, $path, $rev) = @_;
3405 my @p = split m#/+#, $path;
3406 my $c = shift @p;
3407 unless (defined $types->{$c}) {
3408 $types->{$c} = $ra->check_path($c, $rev);
3409 }
3410 while (@p) {
3411 $c .= '/' . shift @p;
3412 next if defined $types->{$c};
3413 $types->{$c} = $ra->check_path($c, $rev);
3414 }
3415 }
3416
3417 foreach my $m (@$mods) {
3418 foreach my $f (qw/file_a file_b/) {
3419 next unless defined $m->{$f};
3420 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
3421 if (length $pfx.$dir && ! defined $types{$dir}) {
3422 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
3423 }
3424 }
3425 }
3426 \%types;
3427 }
3428
3429 sub split_path {
3430 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
3431 }
3432
3433 sub repo_path {
3434 my ($self, $path) = @_;
3435 $self->{path_prefix}.(defined $path ? $path : '');
3436 }
3437
3438 sub url_path {
3439 my ($self, $path) = @_;
3440 if ($self->{url} =~ m#^https?://#) {
3441 $path =~ s/([^a-zA-Z0-9_.-])/uc sprintf("%%%02x",ord($1))/eg;
3442 }
3443 $self->{url} . '/' . $self->repo_path($path);
3444 }
3445
3446 sub rmdirs {
3447 my ($self) = @_;
3448 my $rm = $self->{rm};
3449 delete $rm->{''}; # we never delete the url we're tracking
3450 return unless %$rm;
3451
3452 foreach (keys %$rm) {
3453 my @d = split m#/#, $_;
3454 my $c = shift @d;
3455 $rm->{$c} = 1;
3456 while (@d) {
3457 $c .= '/' . shift @d;
3458 $rm->{$c} = 1;
3459 }
3460 }
3461 delete $rm->{$self->{svn_path}};
3462 delete $rm->{''}; # we never delete the url we're tracking
3463 return unless %$rm;
3464
3465 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
3466 $self->{tree_b});
3467 local $/ = "\0";
3468 while (<$fh>) {
3469 chomp;
3470 my @dn = split m#/#, $_;
3471 while (pop @dn) {
3472 delete $rm->{join '/', @dn};
3473 }
3474 unless (%$rm) {
3475 close $fh;
3476 return;
3477 }
3478 }
3479 command_close_pipe($fh, $ctx);
3480
3481 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
3482 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
3483 $self->close_directory($bat->{$d}, $p);
3484 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
3485 print "\tD+\t$d/\n" unless $::_q;
3486 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
3487 delete $bat->{$d};
3488 }
3489 }
3490
3491 sub open_or_add_dir {
3492 my ($self, $full_path, $baton) = @_;
3493 my $t = $self->{types}->{$full_path};
3494 if (!defined $t) {
3495 die "$full_path not known in r$self->{r} or we have a bug!\n";
3496 }
3497 {
3498 no warnings 'once';
3499 # SVN::Node::none and SVN::Node::file are used only once,
3500 # so we're shutting up Perl's warnings about them.
3501 if ($t == $SVN::Node::none) {
3502 return $self->add_directory($full_path, $baton,
3503 undef, -1, $self->{pool});
3504 } elsif ($t == $SVN::Node::dir) {
3505 return $self->open_directory($full_path, $baton,
3506 $self->{r}, $self->{pool});
3507 } # no warnings 'once'
3508 print STDERR "$full_path already exists in repository at ",
3509 "r$self->{r} and it is not a directory (",
3510 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
3511 } # no warnings 'once'
3512 exit 1;
3513 }
3514
3515 sub ensure_path {
3516 my ($self, $path) = @_;
3517 my $bat = $self->{bat};
3518 my $repo_path = $self->repo_path($path);
3519 return $bat->{''} unless (length $repo_path);
3520 my @p = split m#/+#, $repo_path;
3521 my $c = shift @p;
3522 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
3523 while (@p) {
3524 my $c0 = $c;
3525 $c .= '/' . shift @p;
3526 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
3527 }
3528 return $bat->{$c};
3529 }
3530
3531 sub A {
3532 my ($self, $m) = @_;
3533 my ($dir, $file) = split_path($m->{file_b});
3534 my $pbat = $self->ensure_path($dir);
3535 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3536 undef, -1);
3537 print "\tA\t$m->{file_b}\n" unless $::_q;
3538 $self->chg_file($fbat, $m);
3539 $self->close_file($fbat,undef,$self->{pool});
3540 }
3541
3542 sub C {
3543 my ($self, $m) = @_;
3544 my ($dir, $file) = split_path($m->{file_b});
3545 my $pbat = $self->ensure_path($dir);
3546 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3547 $self->url_path($m->{file_a}), $self->{r});
3548 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3549 $self->chg_file($fbat, $m);
3550 $self->close_file($fbat,undef,$self->{pool});
3551 }
3552
3553 sub delete_entry {
3554 my ($self, $path, $pbat) = @_;
3555 my $rpath = $self->repo_path($path);
3556 my ($dir, $file) = split_path($rpath);
3557 $self->{rm}->{$dir} = 1;
3558 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
3559 }
3560
3561 sub R {
3562 my ($self, $m) = @_;
3563 my ($dir, $file) = split_path($m->{file_b});
3564 my $pbat = $self->ensure_path($dir);
3565 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3566 $self->url_path($m->{file_a}), $self->{r});
3567 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3568 $self->chg_file($fbat, $m);
3569 $self->close_file($fbat,undef,$self->{pool});
3570
3571 ($dir, $file) = split_path($m->{file_a});
3572 $pbat = $self->ensure_path($dir);
3573 $self->delete_entry($m->{file_a}, $pbat);
3574 }
3575
3576 sub M {
3577 my ($self, $m) = @_;
3578 my ($dir, $file) = split_path($m->{file_b});
3579 my $pbat = $self->ensure_path($dir);
3580 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
3581 $pbat,$self->{r},$self->{pool});
3582 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
3583 $self->chg_file($fbat, $m);
3584 $self->close_file($fbat,undef,$self->{pool});
3585 }
3586
3587 sub T { shift->M(@_) }
3588
3589 sub change_file_prop {
3590 my ($self, $fbat, $pname, $pval) = @_;
3591 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
3592 }
3593
3594 sub chg_file {
3595 my ($self, $fbat, $m) = @_;
3596 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
3597 $self->change_file_prop($fbat,'svn:executable','*');
3598 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
3599 $self->change_file_prop($fbat,'svn:executable',undef);
3600 }
3601 my $fh = IO::File->new_tmpfile or croak $!;
3602 if ($m->{mode_b} =~ /^120/) {
3603 print $fh 'link ' or croak $!;
3604 $self->change_file_prop($fbat,'svn:special','*');
3605 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
3606 $self->change_file_prop($fbat,'svn:special',undef);
3607 }
3608 my $size = $::_repository->cat_blob($m->{sha1_b}, $fh);
3609 croak "Failed to read object $m->{sha1_b}" if ($size < 0);
3610 $fh->flush == 0 or croak $!;
3611 seek $fh, 0, 0 or croak $!;
3612
3613 my $exp = ::md5sum($fh);
3614 seek $fh, 0, 0 or croak $!;
3615
3616 my $pool = SVN::Pool->new;
3617 my $atd = $self->apply_textdelta($fbat, undef, $pool);
3618 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
3619 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
3620 $pool->clear;
3621
3622 close $fh or croak $!;
3623 }
3624
3625 sub D {
3626 my ($self, $m) = @_;
3627 my ($dir, $file) = split_path($m->{file_b});
3628 my $pbat = $self->ensure_path($dir);
3629 print "\tD\t$m->{file_b}\n" unless $::_q;
3630 $self->delete_entry($m->{file_b}, $pbat);
3631 }
3632
3633 sub close_edit {
3634 my ($self) = @_;
3635 my ($p,$bat) = ($self->{pool}, $self->{bat});
3636 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
3637 next if $_ eq '';
3638 $self->close_directory($bat->{$_}, $p);
3639 }
3640 $self->close_directory($bat->{''}, $p);
3641 $self->SUPER::close_edit($p);
3642 $p->clear;
3643 }
3644
3645 sub abort_edit {
3646 my ($self) = @_;
3647 $self->SUPER::abort_edit($self->{pool});
3648 }
3649
3650 sub DESTROY {
3651 my $self = shift;
3652 $self->SUPER::DESTROY(@_);
3653 $self->{pool}->clear;
3654 }
3655
3656 # this drives the editor
3657 sub apply_diff {
3658 my ($self) = @_;
3659 my $mods = $self->{mods};
3660 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
3661 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
3662 my $f = $m->{chg};
3663 if (defined $o{$f}) {
3664 $self->$f($m);
3665 } else {
3666 fatal("Invalid change type: $f");
3667 }
3668 }
3669 $self->rmdirs if $_rmdir;
3670 if (@$mods == 0) {
3671 $self->abort_edit;
3672 } else {
3673 $self->close_edit;
3674 }
3675 return scalar @$mods;
3676 }
3677
3678 package Git::SVN::Ra;
3679 use vars qw/@ISA $config_dir $_log_window_size/;
3680 use strict;
3681 use warnings;
3682 my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
3683
3684 BEGIN {
3685 # enforce temporary pool usage for some simple functions
3686 no strict 'refs';
3687 for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root/) {
3688 my $SUPER = "SUPER::$f";
3689 *$f = sub {
3690 my $self = shift;
3691 my $pool = SVN::Pool->new;
3692 my @ret = $self->$SUPER(@_,$pool);
3693 $pool->clear;
3694 wantarray ? @ret : $ret[0];
3695 };
3696 }
3697 }
3698
3699 sub _auth_providers () {
3700 [
3701 SVN::Client::get_simple_provider(),
3702 SVN::Client::get_ssl_server_trust_file_provider(),
3703 SVN::Client::get_simple_prompt_provider(
3704 \&Git::SVN::Prompt::simple, 2),
3705 SVN::Client::get_ssl_client_cert_file_provider(),
3706 SVN::Client::get_ssl_client_cert_prompt_provider(
3707 \&Git::SVN::Prompt::ssl_client_cert, 2),
3708 SVN::Client::get_ssl_client_cert_pw_file_provider(),
3709 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
3710 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
3711 SVN::Client::get_username_provider(),
3712 SVN::Client::get_ssl_server_trust_prompt_provider(
3713 \&Git::SVN::Prompt::ssl_server_trust),
3714 SVN::Client::get_username_prompt_provider(
3715 \&Git::SVN::Prompt::username, 2)
3716 ]
3717 }
3718
3719 sub escape_uri_only {
3720 my ($uri) = @_;
3721 my @tmp;
3722 foreach (split m{/}, $uri) {
3723 s/([^\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
3724 push @tmp, $_;
3725 }
3726 join('/', @tmp);
3727 }
3728
3729 sub escape_url {
3730 my ($url) = @_;
3731 if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
3732 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
3733 $url = "$scheme://$domain$uri";
3734 }
3735 $url;
3736 }
3737
3738 sub new {
3739 my ($class, $url) = @_;
3740 $url =~ s!/+$!!;
3741 return $RA if ($RA && $RA->{url} eq $url);
3742
3743 SVN::_Core::svn_config_ensure($config_dir, undef);
3744 my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
3745 my $config = SVN::Core::config_get_config($config_dir);
3746 $RA = undef;
3747 my $dont_store_passwords = 1;
3748 my $conf_t = ${$config}{'config'};
3749 {
3750 no warnings 'once';
3751 # The usage of $SVN::_Core::SVN_CONFIG_* variables
3752 # produces warnings that variables are used only once.
3753 # I had not found the better way to shut them up, so
3754 # the warnings of type 'once' are disabled in this block.
3755 if (SVN::_Core::svn_config_get_bool($conf_t,
3756 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
3757 $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
3758 1) == 0) {
3759 SVN::_Core::svn_auth_set_parameter($baton,
3760 $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
3761 bless (\$dont_store_passwords, "_p_void"));
3762 }
3763 if (SVN::_Core::svn_config_get_bool($conf_t,
3764 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
3765 $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
3766 1) == 0) {
3767 $Git::SVN::Prompt::_no_auth_cache = 1;
3768 }
3769 } # no warnings 'once'
3770 my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
3771 config => $config,
3772 pool => SVN::Pool->new,
3773 auth_provider_callbacks => $callbacks);
3774 $self->{url} = $url;
3775 $self->{svn_path} = $url;
3776 $self->{repos_root} = $self->get_repos_root;
3777 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
3778 $self->{cache} = { check_path => { r => 0, data => {} },
3779 get_dir => { r => 0, data => {} } };
3780 $RA = bless $self, $class;
3781 }
3782
3783 sub check_path {
3784 my ($self, $path, $r) = @_;
3785 my $cache = $self->{cache}->{check_path};
3786 if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
3787 return $cache->{data}->{$path};
3788 }
3789 my $pool = SVN::Pool->new;
3790 my $t = $self->SUPER::check_path($path, $r, $pool);
3791 $pool->clear;
3792 if ($r != $cache->{r}) {
3793 %{$cache->{data}} = ();
3794 $cache->{r} = $r;
3795 }
3796 $cache->{data}->{$path} = $t;
3797 }
3798
3799 sub get_dir {
3800 my ($self, $dir, $r) = @_;
3801 my $cache = $self->{cache}->{get_dir};
3802 if ($r == $cache->{r}) {
3803 if (my $x = $cache->{data}->{$dir}) {
3804 return wantarray ? @$x : $x->[0];
3805 }
3806 }
3807 my $pool = SVN::Pool->new;
3808 my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
3809 my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
3810 $pool->clear;
3811 if ($r != $cache->{r}) {
3812 %{$cache->{data}} = ();
3813 $cache->{r} = $r;
3814 }
3815 $cache->{data}->{$dir} = [ \%dirents, $r, $props ];
3816 wantarray ? (\%dirents, $r, $props) : \%dirents;
3817 }
3818
3819 sub DESTROY {
3820 # do not call the real DESTROY since we store ourselves in $RA
3821 }
3822
3823 sub get_log {
3824 my ($self, @args) = @_;
3825 my $pool = SVN::Pool->new;
3826 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
3827 my $ret = $self->SUPER::get_log(@args, $pool);
3828 $pool->clear;
3829 $ret;
3830 }
3831
3832 sub trees_match {
3833 my ($self, $url1, $rev1, $url2, $rev2) = @_;
3834 my $ctx = SVN::Client->new(auth => _auth_providers);
3835 my $out = IO::File->new_tmpfile;
3836
3837 # older SVN (1.1.x) doesn't take $pool as the last parameter for
3838 # $ctx->diff(), so we'll create a default one
3839 my $pool = SVN::Pool->new_default_sub;
3840
3841 $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
3842 $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
3843 $out->flush;
3844 my $ret = (($out->stat)[7] == 0);
3845 close $out or croak $!;
3846
3847 $ret;
3848 }
3849
3850 sub get_commit_editor {
3851 my ($self, $log, $cb, $pool) = @_;
3852 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
3853 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
3854 }
3855
3856 sub gs_do_update {
3857 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
3858 my $new = ($rev_a == $rev_b);
3859 my $path = $gs->{path};
3860
3861 if ($new && -e $gs->{index}) {
3862 unlink $gs->{index} or die
3863 "Couldn't unlink index: $gs->{index}: $!\n";
3864 }
3865 my $pool = SVN::Pool->new;
3866 $editor->set_path_strip($path);
3867 my (@pc) = split m#/#, $path;
3868 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
3869 1, $editor, $pool);
3870 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3871
3872 # Since we can't rely on svn_ra_reparent being available, we'll
3873 # just have to do some magic with set_path to make it so
3874 # we only want a partial path.
3875 my $sp = '';
3876 my $final = join('/', @pc);
3877 while (@pc) {
3878 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
3879 $sp .= '/' if length $sp;
3880 $sp .= shift @pc;
3881 }
3882 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
3883
3884 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
3885
3886 $reporter->finish_report($pool);
3887 $pool->clear;
3888 $editor->{git_commit_ok};
3889 }
3890
3891 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
3892 # svn_ra_reparent didn't work before 1.4)
3893 sub gs_do_switch {
3894 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
3895 my $path = $gs->{path};
3896 my $pool = SVN::Pool->new;
3897
3898 my $full_url = $self->{url};
3899 my $old_url = $full_url;
3900 $full_url .= '/' . escape_uri_only($path) if length $path;
3901 my ($ra, $reparented);
3902 if ($old_url ne $full_url) {
3903 if ($old_url !~ m#^svn(\+ssh)?://#) {
3904 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url,
3905 $pool);
3906 $self->{url} = $full_url;
3907 $reparented = 1;
3908 } else {
3909 $_[0] = undef;
3910 $self = undef;
3911 $RA = undef;
3912 $ra = Git::SVN::Ra->new($full_url);
3913 $ra_invalid = 1;
3914 }
3915 }
3916 $ra ||= $self;
3917 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
3918 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3919 $reporter->set_path('', $rev_a, 0, @lock, $pool);
3920 $reporter->finish_report($pool);
3921
3922 if ($reparented) {
3923 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
3924 $self->{url} = $old_url;
3925 }
3926
3927 $pool->clear;
3928 $editor->{git_commit_ok};
3929 }
3930
3931 sub longest_common_path {
3932 my ($gsv, $globs) = @_;
3933 my %common;
3934 my $common_max = scalar @$gsv;
3935
3936 foreach my $gs (@$gsv) {
3937 my @tmp = split m#/#, $gs->{path};
3938 my $p = '';
3939 foreach (@tmp) {
3940 $p .= length($p) ? "/$_" : $_;
3941 $common{$p} ||= 0;
3942 $common{$p}++;
3943 }
3944 }
3945 $globs ||= [];
3946 $common_max += scalar @$globs;
3947 foreach my $glob (@$globs) {
3948 my @tmp = split m#/#, $glob->{path}->{left};
3949 my $p = '';
3950 foreach (@tmp) {
3951 $p .= length($p) ? "/$_" : $_;
3952 $common{$p} ||= 0;
3953 $common{$p}++;
3954 }
3955 }
3956
3957 my $longest_path = '';
3958 foreach (sort {length $b <=> length $a} keys %common) {
3959 if ($common{$_} == $common_max) {
3960 $longest_path = $_;
3961 last;
3962 }
3963 }
3964 $longest_path;
3965 }
3966
3967 sub gs_fetch_loop_common {
3968 my ($self, $base, $head, $gsv, $globs) = @_;
3969 return if ($base > $head);
3970 my $inc = $_log_window_size;
3971 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
3972 my $longest_path = longest_common_path($gsv, $globs);
3973 my $ra_url = $self->{url};
3974 while (1) {
3975 my %revs;
3976 my $err;
3977 my $err_handler = $SVN::Error::handler;
3978 $SVN::Error::handler = sub {
3979 ($err) = @_;
3980 skip_unknown_revs($err);
3981 };
3982 sub _cb {
3983 my ($paths, $r, $author, $date, $log) = @_;
3984 [ dup_changed_paths($paths),
3985 { author => $author, date => $date, log => $log } ];
3986 }
3987 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
3988 sub { $revs{$_[1]} = _cb(@_) });
3989 if ($err && $max >= $head) {
3990 print STDERR "Path '$longest_path' ",
3991 "was probably deleted:\n",
3992 $err->expanded_message,
3993 "\nWill attempt to follow ",
3994 "revisions r$min .. r$max ",
3995 "committed before the deletion\n";
3996 my $hi = $max;
3997 while (--$hi >= $min) {
3998 my $ok;
3999 $self->get_log([$longest_path], $min, $hi,
4000 0, 1, 1, sub {
4001 $ok ||= $_[1];
4002 $revs{$_[1]} = _cb(@_) });
4003 if ($ok) {
4004 print STDERR "r$min .. r$ok OK\n";
4005 last;
4006 }
4007 }
4008 }
4009 $SVN::Error::handler = $err_handler;
4010
4011 my %exists = map { $_->{path} => $_ } @$gsv;
4012 foreach my $r (sort {$a <=> $b} keys %revs) {
4013 my ($paths, $logged) = @{$revs{$r}};
4014
4015 foreach my $gs ($self->match_globs(\%exists, $paths,
4016 $globs, $r)) {
4017 if ($gs->rev_map_max >= $r) {
4018 next;
4019 }
4020 next unless $gs->match_paths($paths, $r);
4021 $gs->{logged_rev_props} = $logged;
4022 if (my $last_commit = $gs->last_commit) {
4023 $gs->assert_index_clean($last_commit);
4024 }
4025 my $log_entry = $gs->do_fetch($paths, $r);
4026 if ($log_entry) {
4027 $gs->do_git_commit($log_entry);
4028 }
4029 $INDEX_FILES{$gs->{index}} = 1;
4030 }
4031 foreach my $g (@$globs) {
4032 my $k = "svn-remote.$g->{remote}." .
4033 "$g->{t}-maxRev";
4034 Git::SVN::tmp_config($k, $r);
4035 }
4036 if ($ra_invalid) {
4037 $_[0] = undef;
4038 $self = undef;
4039 $RA = undef;
4040 $self = Git::SVN::Ra->new($ra_url);
4041 $ra_invalid = undef;
4042 }
4043 }
4044 # pre-fill the .rev_db since it'll eventually get filled in
4045 # with '0' x40 if something new gets committed
4046 foreach my $gs (@$gsv) {
4047 next if $gs->rev_map_max >= $max;
4048 next if defined $gs->rev_map_get($max);
4049 $gs->rev_map_set($max, 0 x40);
4050 }
4051 foreach my $g (@$globs) {
4052 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
4053 Git::SVN::tmp_config($k, $max);
4054 }
4055 last if $max >= $head;
4056 $min = $max + 1;
4057 $max += $inc;
4058 $max = $head if ($max > $head);
4059 }
4060 Git::SVN::gc();
4061 }
4062
4063 sub match_globs {
4064 my ($self, $exists, $paths, $globs, $r) = @_;
4065
4066 sub get_dir_check {
4067 my ($self, $exists, $g, $r) = @_;
4068 my @x = eval { $self->get_dir($g->{path}->{left}, $r) };
4069 return unless scalar @x == 3;
4070 my $dirents = $x[0];
4071 foreach my $de (keys %$dirents) {
4072 next if $dirents->{$de}->{kind} != $SVN::Node::dir;
4073 my $p = $g->{path}->full_path($de);
4074 next if $exists->{$p};
4075 next if (length $g->{path}->{right} &&
4076 ($self->check_path($p, $r) !=
4077 $SVN::Node::dir));
4078 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
4079 $g->{ref}->full_path($de), 1);
4080 }
4081 }
4082 foreach my $g (@$globs) {
4083 if (my $path = $paths->{"/$g->{path}->{left}"}) {
4084 if ($path->{action} =~ /^[AR]$/) {
4085 get_dir_check($self, $exists, $g, $r);
4086 }
4087 }
4088 foreach (keys %$paths) {
4089 if (/$g->{path}->{left_regex}/ &&
4090 !/$g->{path}->{regex}/) {
4091 next if $paths->{$_}->{action} !~ /^[AR]$/;
4092 get_dir_check($self, $exists, $g, $r);
4093 }
4094 next unless /$g->{path}->{regex}/;
4095 my $p = $1;
4096 my $pathname = $g->{path}->full_path($p);
4097 next if $exists->{$pathname};
4098 next if ($self->check_path($pathname, $r) !=
4099 $SVN::Node::dir);
4100 $exists->{$pathname} = Git::SVN->init(
4101 $self->{url}, $pathname, undef,
4102 $g->{ref}->full_path($p), 1);
4103 }
4104 my $c = '';
4105 foreach (split m#/#, $g->{path}->{left}) {
4106 $c .= "/$_";
4107 next unless ($paths->{$c} &&
4108 ($paths->{$c}->{action} =~ /^[AR]$/));
4109 get_dir_check($self, $exists, $g, $r);
4110 }
4111 }
4112 values %$exists;
4113 }
4114
4115 sub minimize_url {
4116 my ($self) = @_;
4117 return $self->{url} if ($self->{url} eq $self->{repos_root});
4118 my $url = $self->{repos_root};
4119 my @components = split(m!/!, $self->{svn_path});
4120 my $c = '';
4121 do {
4122 $url .= "/$c" if length $c;
4123 eval { (ref $self)->new($url)->get_latest_revnum };
4124 } while ($@ && ($c = shift @components));
4125 $url;
4126 }
4127
4128 sub can_do_switch {
4129 my $self = shift;
4130 unless (defined $can_do_switch) {
4131 my $pool = SVN::Pool->new;
4132 my $rep = eval {
4133 $self->do_switch(1, '', 0, $self->{url},
4134 SVN::Delta::Editor->new, $pool);
4135 };
4136 if ($@) {
4137 $can_do_switch = 0;
4138 } else {
4139 $rep->abort_report($pool);
4140 $can_do_switch = 1;
4141 }
4142 $pool->clear;
4143 }
4144 $can_do_switch;
4145 }
4146
4147 sub skip_unknown_revs {
4148 my ($err) = @_;
4149 my $errno = $err->apr_err();
4150 # Maybe the branch we're tracking didn't
4151 # exist when the repo started, so it's
4152 # not an error if it doesn't, just continue
4153 #
4154 # Wonderfully consistent library, eh?
4155 # 160013 - svn:// and file://
4156 # 175002 - http(s)://
4157 # 175007 - http(s):// (this repo required authorization, too...)
4158 # More codes may be discovered later...
4159 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
4160 my $err_key = $err->expanded_message;
4161 # revision numbers change every time, filter them out
4162 $err_key =~ s/\d+/\0/g;
4163 $err_key = "$errno\0$err_key";
4164 unless ($ignored_err{$err_key}) {
4165 warn "W: Ignoring error from SVN, path probably ",
4166 "does not exist: ($errno): ",
4167 $err->expanded_message,"\n";
4168 warn "W: Do not be alarmed at the above message ",
4169 "git-svn is just searching aggressively for ",
4170 "old history.\n",
4171 "This may take a while on large repositories\n";
4172 $ignored_err{$err_key} = 1;
4173 }
4174 return;
4175 }
4176 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
4177 }
4178
4179 # svn_log_changed_path_t objects passed to get_log are likely to be
4180 # overwritten even if only the refs are copied to an external variable,
4181 # so we should dup the structures in their entirety. Using an externally
4182 # passed pool (instead of our temporary and quickly cleared pool in
4183 # Git::SVN::Ra) does not help matters at all...
4184 sub dup_changed_paths {
4185 my ($paths) = @_;
4186 return undef unless $paths;
4187 my %ret;
4188 foreach my $p (keys %$paths) {
4189 my $i = $paths->{$p};
4190 my %s = map { $_ => $i->$_ }
4191 qw/copyfrom_path copyfrom_rev action/;
4192 $ret{$p} = \%s;
4193 }
4194 \%ret;
4195 }
4196
4197 package Git::SVN::Log;
4198 use strict;
4199 use warnings;
4200 use POSIX qw/strftime/;
4201 use constant commit_log_separator => ('-' x 72) . "\n";
4202 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
4203 %rusers $show_commit $incremental/;
4204 my $l_fmt;
4205
4206 sub cmt_showable {
4207 my ($c) = @_;
4208 return 1 if defined $c->{r};
4209
4210 # big commit message got truncated by the 16k pretty buffer in rev-list
4211 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
4212 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
4213 @{$c->{l}} = ();
4214 my @log = command(qw/cat-file commit/, $c->{c});
4215
4216 # shift off the headers
4217 shift @log while ($log[0] ne '');
4218 shift @log;
4219
4220 # TODO: make $c->{l} not have a trailing newline in the future
4221 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
4222
4223 (undef, $c->{r}, undef) = ::extract_metadata(
4224 (grep(/^git-svn-id: /, @log))[-1]);
4225 }
4226 return defined $c->{r};
4227 }
4228
4229 sub log_use_color {
4230 return $color || Git->repository->get_colorbool('color.diff');
4231 }
4232
4233 sub git_svn_log_cmd {
4234 my ($r_min, $r_max, @args) = @_;
4235 my $head = 'HEAD';
4236 my (@files, @log_opts);
4237 foreach my $x (@args) {
4238 if ($x eq '--' || @files) {
4239 push @files, $x;
4240 } else {
4241 if (::verify_ref("$x^0")) {
4242 $head = $x;
4243 } else {
4244 push @log_opts, $x;
4245 }
4246 }
4247 }
4248
4249 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
4250 $gs ||= Git::SVN->_new;
4251 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
4252 $gs->refname);
4253 push @cmd, '-r' unless $non_recursive;
4254 push @cmd, qw/--raw --name-status/ if $verbose;
4255 push @cmd, '--color' if log_use_color();
4256 push @cmd, @log_opts;
4257 if (defined $r_max && $r_max == $r_min) {
4258 push @cmd, '--max-count=1';
4259 if (my $c = $gs->rev_map_get($r_max)) {
4260 push @cmd, $c;
4261 }
4262 } elsif (defined $r_max) {
4263 if ($r_max < $r_min) {
4264 ($r_min, $r_max) = ($r_max, $r_min);
4265 }
4266 my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
4267 my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
4268 # If there are no commits in the range, both $c_max and $c_min
4269 # will be undefined. If there is at least 1 commit in the
4270 # range, both will be defined.
4271 return () if !defined $c_min || !defined $c_max;
4272 if ($c_min eq $c_max) {
4273 push @cmd, '--max-count=1', $c_min;
4274 } else {
4275 push @cmd, '--boundary', "$c_min..$c_max";
4276 }
4277 }
4278 return (@cmd, @files);
4279 }
4280
4281 # adapted from pager.c
4282 sub config_pager {
4283 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
4284 if (!defined $pager) {
4285 $pager = 'less';
4286 } elsif (length $pager == 0 || $pager eq 'cat') {
4287 $pager = undef;
4288 }
4289 $ENV{GIT_PAGER_IN_USE} = defined($pager);
4290 }
4291
4292 sub run_pager {
4293 return unless -t *STDOUT && defined $pager;
4294 pipe my $rfd, my $wfd or return;
4295 defined(my $pid = fork) or ::fatal "Can't fork: $!";
4296 if (!$pid) {
4297 open STDOUT, '>&', $wfd or
4298 ::fatal "Can't redirect to stdout: $!";
4299 return;
4300 }
4301 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
4302 $ENV{LESS} ||= 'FRSX';
4303 exec $pager or ::fatal "Can't run pager: $! ($pager)";
4304 }
4305
4306 sub format_svn_date {
4307 return strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)", localtime(shift));
4308 }
4309
4310 sub parse_git_date {
4311 my ($t, $tz) = @_;
4312 # Date::Parse isn't in the standard Perl distro :(
4313 if ($tz =~ s/^\+//) {
4314 $t += tz_to_s_offset($tz);
4315 } elsif ($tz =~ s/^\-//) {
4316 $t -= tz_to_s_offset($tz);
4317 }
4318 return $t;
4319 }
4320
4321 sub set_local_timezone {
4322 if (defined $TZ) {
4323 $ENV{TZ} = $TZ;
4324 } else {
4325 delete $ENV{TZ};
4326 }
4327 }
4328
4329 sub tz_to_s_offset {
4330 my ($tz) = @_;
4331 $tz =~ s/(\d\d)$//;
4332 return ($1 * 60) + ($tz * 3600);
4333 }
4334
4335 sub get_author_info {
4336 my ($dest, $author, $t, $tz) = @_;
4337 $author =~ s/(?:^\s*|\s*$)//g;
4338 $dest->{a_raw} = $author;
4339 my $au;
4340 if ($::_authors) {
4341 $au = $rusers{$author} || undef;
4342 }
4343 if (!$au) {
4344 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
4345 }
4346 $dest->{t} = $t;
4347 $dest->{tz} = $tz;
4348 $dest->{a} = $au;
4349 $dest->{t_utc} = parse_git_date($t, $tz);
4350 }
4351
4352 sub process_commit {
4353 my ($c, $r_min, $r_max, $defer) = @_;
4354 if (defined $r_min && defined $r_max) {
4355 if ($r_min == $c->{r} && $r_min == $r_max) {
4356 show_commit($c);
4357 return 0;
4358 }
4359 return 1 if $r_min == $r_max;
4360 if ($r_min < $r_max) {
4361 # we need to reverse the print order
4362 return 0 if (defined $limit && --$limit < 0);
4363 push @$defer, $c;
4364 return 1;
4365 }
4366 if ($r_min != $r_max) {
4367 return 1 if ($r_min < $c->{r});
4368 return 1 if ($r_max > $c->{r});
4369 }
4370 }
4371 return 0 if (defined $limit && --$limit < 0);
4372 show_commit($c);
4373 return 1;
4374 }
4375
4376 sub show_commit {
4377 my $c = shift;
4378 if ($oneline) {
4379 my $x = "\n";
4380 if (my $l = $c->{l}) {
4381 while ($l->[0] =~ /^\s*$/) { shift @$l }
4382 $x = $l->[0];
4383 }
4384 $l_fmt ||= 'A' . length($c->{r});
4385 print 'r',pack($l_fmt, $c->{r}),' | ';
4386 print "$c->{c} | " if $show_commit;
4387 print $x;
4388 } else {
4389 show_commit_normal($c);
4390 }
4391 }
4392
4393 sub show_commit_changed_paths {
4394 my ($c) = @_;
4395 return unless $c->{changed};
4396 print "Changed paths:\n", @{$c->{changed}};
4397 }
4398
4399 sub show_commit_normal {
4400 my ($c) = @_;
4401 print commit_log_separator, "r$c->{r} | ";
4402 print "$c->{c} | " if $show_commit;
4403 print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
4404 my $nr_line = 0;
4405
4406 if (my $l = $c->{l}) {
4407 while ($l->[$#$l] eq "\n" && $#$l > 0
4408 && $l->[($#$l - 1)] eq "\n") {
4409 pop @$l;
4410 }
4411 $nr_line = scalar @$l;
4412 if (!$nr_line) {
4413 print "1 line\n\n\n";
4414 } else {
4415 if ($nr_line == 1) {
4416 $nr_line = '1 line';
4417 } else {
4418 $nr_line .= ' lines';
4419 }
4420 print $nr_line, "\n";
4421 show_commit_changed_paths($c);
4422 print "\n";
4423 print $_ foreach @$l;
4424 }
4425 } else {
4426 print "1 line\n";
4427 show_commit_changed_paths($c);
4428 print "\n";
4429
4430 }
4431 foreach my $x (qw/raw stat diff/) {
4432 if ($c->{$x}) {
4433 print "\n";
4434 print $_ foreach @{$c->{$x}}
4435 }
4436 }
4437 }
4438
4439 sub cmd_show_log {
4440 my (@args) = @_;
4441 my ($r_min, $r_max);
4442 my $r_last = -1; # prevent dupes
4443 set_local_timezone();
4444 if (defined $::_revision) {
4445 if ($::_revision =~ /^(\d+):(\d+)$/) {
4446 ($r_min, $r_max) = ($1, $2);
4447 } elsif ($::_revision =~ /^\d+$/) {
4448 $r_min = $r_max = $::_revision;
4449 } else {
4450 ::fatal "-r$::_revision is not supported, use ",
4451 "standard 'git log' arguments instead";
4452 }
4453 }
4454
4455 config_pager();
4456 @args = git_svn_log_cmd($r_min, $r_max, @args);
4457 if (!@args) {
4458 print commit_log_separator unless $incremental || $oneline;
4459 return;
4460 }
4461 my $log = command_output_pipe(@args);
4462 run_pager();
4463 my (@k, $c, $d, $stat);
4464 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
4465 while (<$log>) {
4466 if (/^${esc_color}commit -?($::sha1_short)/o) {
4467 my $cmt = $1;
4468 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
4469 $r_last = $c->{r};
4470 process_commit($c, $r_min, $r_max, \@k) or
4471 goto out;
4472 }
4473 $d = undef;
4474 $c = { c => $cmt };
4475 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
4476 get_author_info($c, $1, $2, $3);
4477 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
4478 # ignore
4479 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
4480 push @{$c->{raw}}, $_;
4481 } elsif (/^${esc_color}[ACRMDT]\t/) {
4482 # we could add $SVN->{svn_path} here, but that requires
4483 # remote access at the moment (repo_path_split)...
4484 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
4485 push @{$c->{changed}}, $_;
4486 } elsif (/^${esc_color}diff /o) {
4487 $d = 1;
4488 push @{$c->{diff}}, $_;
4489 } elsif ($d) {
4490 push @{$c->{diff}}, $_;
4491 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
4492 $esc_color*[\+\-]*$esc_color$/x) {
4493 $stat = 1;
4494 push @{$c->{stat}}, $_;
4495 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
4496 push @{$c->{stat}}, $_;
4497 $stat = undef;
4498 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
4499 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
4500 } elsif (s/^${esc_color} //o) {
4501 push @{$c->{l}}, $_;
4502 }
4503 }
4504 if ($c && defined $c->{r} && $c->{r} != $r_last) {
4505 $r_last = $c->{r};
4506 process_commit($c, $r_min, $r_max, \@k);
4507 }
4508 if (@k) {
4509 ($r_min, $r_max) = ($r_max, $r_min);
4510 process_commit($_, $r_min, $r_max) foreach reverse @k;
4511 }
4512 out:
4513 close $log;
4514 print commit_log_separator unless $incremental || $oneline;
4515 }
4516
4517 sub cmd_blame {
4518 my $path = pop;
4519
4520 config_pager();
4521 run_pager();
4522
4523 my ($fh, $ctx, $rev);
4524
4525 if ($_git_format) {
4526 ($fh, $ctx) = command_output_pipe('blame', @_, $path);
4527 while (my $line = <$fh>) {
4528 if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
4529 # Uncommitted edits show up as a rev ID of
4530 # all zeros, which we can't look up with
4531 # cmt_metadata
4532 if ($1 !~ /^0+$/) {
4533 (undef, $rev, undef) =
4534 ::cmt_metadata($1);
4535 $rev = '0' if (!$rev);
4536 } else {
4537 $rev = '0';
4538 }
4539 $rev = sprintf('%-10s', $rev);
4540 $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
4541 }
4542 print $line;
4543 }
4544 } else {
4545 ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
4546 '--', $path);
4547 my ($sha1);
4548 my %authors;
4549 while (my $line = <$fh>) {
4550 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
4551 $sha1 = $1;
4552 (undef, $rev, undef) = ::cmt_metadata($1);
4553 $rev = '0' if (!$rev);
4554 }
4555 elsif ($line =~ /^author (.*)/) {
4556 $authors{$rev} = $1;
4557 $authors{$rev} =~ s/\s/_/g;
4558 }
4559 elsif ($line =~ /^\t(.*)$/) {
4560 printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
4561 }
4562 }
4563 }
4564 command_close_pipe($fh, $ctx);
4565 }
4566
4567 package Git::SVN::Migration;
4568 # these version numbers do NOT correspond to actual version numbers
4569 # of git nor git-svn. They are just relative.
4570 #
4571 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
4572 #
4573 # v1 layout: .git/$id/info/url, refs/remotes/$id
4574 #
4575 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
4576 #
4577 # v3 layout: .git/svn/$id, refs/remotes/$id
4578 # - info/url may remain for backwards compatibility
4579 # - this is what we migrate up to this layout automatically,
4580 # - this will be used by git svn init on single branches
4581 # v3.1 layout (auto migrated):
4582 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
4583 # for backwards compatibility
4584 #
4585 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
4586 # - this is only created for newly multi-init-ed
4587 # repositories. Similar in spirit to the
4588 # --use-separate-remotes option in git-clone (now default)
4589 # - we do not automatically migrate to this (following
4590 # the example set by core git)
4591 #
4592 # v5 layout: .rev_db.$UUID => .rev_map.$UUID
4593 # - newer, more-efficient format that uses 24-bytes per record
4594 # with no filler space.
4595 # - use xxd -c24 < .rev_map.$UUID to view and debug
4596 # - This is a one-way migration, repositories updated to the
4597 # new format will not be able to use old git-svn without
4598 # rebuilding the .rev_db. Rebuilding the rev_db is not
4599 # possible if noMetadata or useSvmProps are set; but should
4600 # be no problem for users that use the (sensible) defaults.
4601 use strict;
4602 use warnings;
4603 use Carp qw/croak/;
4604 use File::Path qw/mkpath/;
4605 use File::Basename qw/dirname basename/;
4606 use vars qw/$_minimize/;
4607
4608 sub migrate_from_v0 {
4609 my $git_dir = $ENV{GIT_DIR};
4610 return undef unless -d $git_dir;
4611 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
4612 my $migrated = 0;
4613 while (<$fh>) {
4614 chomp;
4615 my ($id, $orig_ref) = ($_, $_);
4616 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
4617 next unless -f "$git_dir/$id/info/url";
4618 my $new_ref = "refs/remotes/$id";
4619 if (::verify_ref("$new_ref^0")) {
4620 print STDERR "W: $orig_ref is probably an old ",
4621 "branch used by an ancient version of ",
4622 "git-svn.\n",
4623 "However, $new_ref also exists.\n",
4624 "We will not be able ",
4625 "to use this branch until this ",
4626 "ambiguity is resolved.\n";
4627 next;
4628 }
4629 print STDERR "Migrating from v0 layout...\n" if !$migrated;
4630 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
4631 command_noisy('update-ref', $new_ref, $orig_ref);
4632 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
4633 $migrated++;
4634 }
4635 command_close_pipe($fh, $ctx);
4636 print STDERR "Done migrating from v0 layout...\n" if $migrated;
4637 $migrated;
4638 }
4639
4640 sub migrate_from_v1 {
4641 my $git_dir = $ENV{GIT_DIR};
4642 my $migrated = 0;
4643 return $migrated unless -d $git_dir;
4644 my $svn_dir = "$git_dir/svn";
4645
4646 # just in case somebody used 'svn' as their $id at some point...
4647 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
4648
4649 print STDERR "Migrating from a git-svn v1 layout...\n";
4650 mkpath([$svn_dir]);
4651 print STDERR "Data from a previous version of git-svn exists, but\n\t",
4652 "$svn_dir\n\t(required for this version ",
4653 "($::VERSION) of git-svn) does not exist.\n";
4654 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
4655 while (<$fh>) {
4656 my $x = $_;
4657 next unless $x =~ s#^refs/remotes/##;
4658 chomp $x;
4659 next unless -f "$git_dir/$x/info/url";
4660 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
4661 next unless $u;
4662 my $dn = dirname("$git_dir/svn/$x");
4663 mkpath([$dn]) unless -d $dn;
4664 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
4665 mkpath(["$git_dir/svn/svn"]);
4666 print STDERR " - $git_dir/$x/info => ",
4667 "$git_dir/svn/$x/info\n";
4668 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
4669 croak "$!: $x";
4670 # don't worry too much about these, they probably
4671 # don't exist with repos this old (save for index,
4672 # and we can easily regenerate that)
4673 foreach my $f (qw/unhandled.log index .rev_db/) {
4674 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
4675 }
4676 } else {
4677 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
4678 rename "$git_dir/$x", "$git_dir/svn/$x" or
4679 croak "$!: $x";
4680 }
4681 $migrated++;
4682 }
4683 command_close_pipe($fh, $ctx);
4684 print STDERR "Done migrating from a git-svn v1 layout\n";
4685 $migrated;
4686 }
4687
4688 sub read_old_urls {
4689 my ($l_map, $pfx, $path) = @_;
4690 my @dir;
4691 foreach (<$path/*>) {
4692 if (-r "$_/info/url") {
4693 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
4694 my $ref_id = $pfx . basename $_;
4695 my $url = ::file_to_s("$_/info/url");
4696 $l_map->{$ref_id} = $url;
4697 } elsif (-d $_) {
4698 push @dir, $_;
4699 }
4700 }
4701 foreach (@dir) {
4702 my $x = $_;
4703 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
4704 read_old_urls($l_map, $x, $_);
4705 }
4706 }
4707
4708 sub migrate_from_v2 {
4709 my @cfg = command(qw/config -l/);
4710 return if grep /^svn-remote\..+\.url=/, @cfg;
4711 my %l_map;
4712 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
4713 my $migrated = 0;
4714
4715 foreach my $ref_id (sort keys %l_map) {
4716 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
4717 if ($@) {
4718 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
4719 }
4720 $migrated++;
4721 }
4722 $migrated;
4723 }
4724
4725 sub minimize_connections {
4726 my $r = Git::SVN::read_all_remotes();
4727 my $new_urls = {};
4728 my $root_repos = {};
4729 foreach my $repo_id (keys %$r) {
4730 my $url = $r->{$repo_id}->{url} or next;
4731 my $fetch = $r->{$repo_id}->{fetch} or next;
4732 my $ra = Git::SVN::Ra->new($url);
4733
4734 # skip existing cases where we already connect to the root
4735 if (($ra->{url} eq $ra->{repos_root}) ||
4736 ($ra->{repos_root} eq $repo_id)) {
4737 $root_repos->{$ra->{url}} = $repo_id;
4738 next;
4739 }
4740
4741 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
4742 my $root_path = $ra->{url};
4743 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
4744 foreach my $path (keys %$fetch) {
4745 my $ref_id = $fetch->{$path};
4746 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
4747
4748 # make sure we can read when connecting to
4749 # a higher level of a repository
4750 my ($last_rev, undef) = $gs->last_rev_commit;
4751 if (!defined $last_rev) {
4752 $last_rev = eval {
4753 $root_ra->get_latest_revnum;
4754 };
4755 next if $@;
4756 }
4757 my $new = $root_path;
4758 $new .= length $path ? "/$path" : '';
4759 eval {
4760 $root_ra->get_log([$new], $last_rev, $last_rev,
4761 0, 0, 1, sub { });
4762 };
4763 next if $@;
4764 $new_urls->{$ra->{repos_root}}->{$new} =
4765 { ref_id => $ref_id,
4766 old_repo_id => $repo_id,
4767 old_path => $path };
4768 }
4769 }
4770
4771 my @emptied;
4772 foreach my $url (keys %$new_urls) {
4773 # see if we can re-use an existing [svn-remote "repo_id"]
4774 # instead of creating a(n ugly) new section:
4775 my $repo_id = $root_repos->{$url} || $url;
4776
4777 my $fetch = $new_urls->{$url};
4778 foreach my $path (keys %$fetch) {
4779 my $x = $fetch->{$path};
4780 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
4781 my $pfx = "svn-remote.$x->{old_repo_id}";
4782
4783 my $old_fetch = quotemeta("$x->{old_path}:".
4784 "refs/remotes/$x->{ref_id}");
4785 command_noisy(qw/config --unset/,
4786 "$pfx.fetch", '^'. $old_fetch . '$');
4787 delete $r->{$x->{old_repo_id}}->
4788 {fetch}->{$x->{old_path}};
4789 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
4790 command_noisy(qw/config --unset/,
4791 "$pfx.url");
4792 push @emptied, $x->{old_repo_id}
4793 }
4794 }
4795 }
4796 if (@emptied) {
4797 my $file = $ENV{GIT_CONFIG} || $ENV{GIT_CONFIG_LOCAL} ||
4798 "$ENV{GIT_DIR}/config";
4799 print STDERR <<EOF;
4800 The following [svn-remote] sections in your config file ($file) are empty
4801 and can be safely removed:
4802 EOF
4803 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
4804 }
4805 }
4806
4807 sub migration_check {
4808 migrate_from_v0();
4809 migrate_from_v1();
4810 migrate_from_v2();
4811 minimize_connections() if $_minimize;
4812 }
4813
4814 package Git::IndexInfo;
4815 use strict;
4816 use warnings;
4817 use Git qw/command_input_pipe command_close_pipe/;
4818
4819 sub new {
4820 my ($class) = @_;
4821 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
4822 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
4823 }
4824
4825 sub remove {
4826 my ($self, $path) = @_;
4827 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
4828 return ++$self->{nr};
4829 }
4830 undef;
4831 }
4832
4833 sub update {
4834 my ($self, $mode, $hash, $path) = @_;
4835 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
4836 return ++$self->{nr};
4837 }
4838 undef;
4839 }
4840
4841 sub DESTROY {
4842 my ($self) = @_;
4843 command_close_pipe($self->{gui}, $self->{ctx});
4844 }
4845
4846 package Git::SVN::GlobSpec;
4847 use strict;
4848 use warnings;
4849
4850 sub new {
4851 my ($class, $glob) = @_;
4852 my $re = $glob;
4853 $re =~ s!/+$!!g; # no need for trailing slashes
4854 my $nr = ($re =~ s!^(.*)\*(.*)$!\(\[^/\]+\)!g);
4855 my ($left, $right) = ($1, $2);
4856 if ($nr > 1) {
4857 die "Only one '*' wildcard expansion ",
4858 "is supported (got $nr): '$glob'\n";
4859 } elsif ($nr == 0) {
4860 die "One '*' is needed for glob: '$glob'\n";
4861 }
4862 $re = quotemeta($left) . $re . quotemeta($right);
4863 if (length $left && !($left =~ s!/+$!!g)) {
4864 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
4865 }
4866 if (length $right && !($right =~ s!^/+!!g)) {
4867 die "Missing leading '/' on right side of: '$glob' ($right)\n";
4868 }
4869 my $left_re = qr/^\/\Q$left\E(\/|$)/;
4870 bless { left => $left, right => $right, left_regex => $left_re,
4871 regex => qr/$re/, glob => $glob }, $class;
4872 }
4873
4874 sub full_path {
4875 my ($self, $path) = @_;
4876 return (length $self->{left} ? "$self->{left}/" : '') .
4877 $path . (length $self->{right} ? "/$self->{right}" : '');
4878 }
4879
4880 __END__
4881
4882 Data structures:
4883
4884
4885 $remotes = { # returned by read_all_remotes()
4886 'svn' => {
4887 # svn-remote.svn.url=https://svn.musicpd.org
4888 url => 'https://svn.musicpd.org',
4889 # svn-remote.svn.fetch=mpd/trunk:trunk
4890 fetch => {
4891 'mpd/trunk' => 'trunk',
4892 },
4893 # svn-remote.svn.tags=mpd/tags/*:tags/*
4894 tags => {
4895 path => {
4896 left => 'mpd/tags',
4897 right => '',
4898 regex => qr!mpd/tags/([^/]+)$!,
4899 glob => 'tags/*',
4900 },
4901 ref => {
4902 left => 'tags',
4903 right => '',
4904 regex => qr!tags/([^/]+)$!,
4905 glob => 'tags/*',
4906 },
4907 }
4908 }
4909 };
4910
4911 $log_entry hashref as returned by libsvn_log_entry()
4912 {
4913 log => 'whitespace-formatted log entry
4914 ', # trailing newline is preserved
4915 revision => '8', # integer
4916 date => '2004-02-24T17:01:44.108345Z', # commit date
4917 author => 'committer name'
4918 };
4919
4920
4921 # this is generated by generate_diff();
4922 @mods = array of diff-index line hashes, each element represents one line
4923 of diff-index output
4924
4925 diff-index line ($m hash)
4926 {
4927 mode_a => first column of diff-index output, no leading ':',
4928 mode_b => second column of diff-index output,
4929 sha1_b => sha1sum of the final blob,
4930 chg => change type [MCRADT],
4931 file_a => original file name of a file (iff chg is 'C' or 'R')
4932 file_b => new/current file name of a file (any chg)
4933 }
4934 ;
4935
4936 # retval of read_url_paths{,_all}();
4937 $l_map = {
4938 # repository root url
4939 'https://svn.musicpd.org' => {
4940 # repository path # GIT_SVN_ID
4941 'mpd/trunk' => 'trunk',
4942 'mpd/tags/0.11.5' => 'tags/0.11.5',
4943 },
4944 }
4945
4946 Notes:
4947 I don't trust the each() function on unless I created %hash myself
4948 because the internal iterator may not have started at base.
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