1#!/usr/bin/env perl
2# Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3# License: GPL v2 or later
4use warnings;
5use strict;
6use 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# From which subdir have we been invoked?
13my $cmd_dir_prefix = eval {
14 command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
15} || '';
16my $git_dir_user_set = 1 if defined $ENV{GIT_DIR};
18$ENV{GIT_DIR} ||= '.git';
19$Git::SVN::default_repo_id = 'svn';
20$Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
21$Git::SVN::Ra::_log_window_size = 100;
22$Git::SVN::Log::TZ = $ENV{TZ};
24$ENV{TZ} = 'UTC';
25$| = 1; # unbuffer STDOUT
26sub fatal (@) { print STDERR "@_\n"; exit 1 }
28require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
29require SVN::Ra;
30require SVN::Delta;
31if ($SVN::Core::VERSION lt '1.1.0') {
32 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
33}
34push @Git::SVN::Ra::ISA, 'SVN::Ra';
35push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
36push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
37use Carp qw/croak/;
38use Digest::MD5;
39use IO::File qw//;
40use File::Basename qw/dirname basename/;
41use File::Path qw/mkpath/;
42use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
43use IPC::Open3;
44use Git;
45BEGIN {
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}
58my ($SVN);
60$sha1 = qr/[a-f\d]{40}/;
62$sha1_short = qr/[a-f\d]{4,40}/;
63my ($_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, $_commit_url);
70$Git::SVN::_follow_parent = 1;
71my %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 );
74my %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 );
88my ($_trunk, $_tags, $_branches, $_stdlayout);
90my %icv;
91my %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 );
101my %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);
107my %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 'commit-url=s' => \$_commit_url,
131 'revision|r=i' => \$_revision,
132 'no-rebase' => \$_no_rebase,
133 %cmt_opts, %fc_opts } ],
134 'set-tree' => [ \&cmd_set_tree,
135 "Set an SVN repository to a git tree-ish",
136 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
137 'create-ignore' => [ \&cmd_create_ignore,
138 'Create a .gitignore per svn:ignore',
139 { 'revision|r=i' => \$_revision
140 } ],
141 'propget' => [ \&cmd_propget,
142 'Print the value of a property on a file or directory',
143 { 'revision|r=i' => \$_revision } ],
144 'proplist' => [ \&cmd_proplist,
145 'List all properties of a file or directory',
146 { 'revision|r=i' => \$_revision } ],
147 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
148 { 'revision|r=i' => \$_revision
149 } ],
150 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
151 { 'revision|r=i' => \$_revision
152 } ],
153 'multi-fetch' => [ \&cmd_multi_fetch,
154 "Deprecated alias for $0 fetch --all",
155 { 'revision|r=s' => \$_revision, %fc_opts } ],
156 'migrate' => [ sub { },
157 # no-op, we automatically run this anyways,
158 'Migrate configuration/metadata/layout from
159 previous versions of git-svn',
160 { 'minimize' => \$Git::SVN::Migration::_minimize,
161 %remote_opts } ],
162 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
163 { 'limit=i' => \$Git::SVN::Log::limit,
164 'revision|r=s' => \$_revision,
165 'verbose|v' => \$Git::SVN::Log::verbose,
166 'incremental' => \$Git::SVN::Log::incremental,
167 'oneline' => \$Git::SVN::Log::oneline,
168 'show-commit' => \$Git::SVN::Log::show_commit,
169 'non-recursive' => \$Git::SVN::Log::non_recursive,
170 'authors-file|A=s' => \$_authors,
171 'color' => \$Git::SVN::Log::color,
172 'pager=s' => \$Git::SVN::Log::pager
173 } ],
174 'find-rev' => [ \&cmd_find_rev,
175 "Translate between SVN revision numbers and tree-ish",
176 {} ],
177 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
178 { 'merge|m|M' => \$_merge,
179 'verbose|v' => \$_verbose,
180 'strategy|s=s' => \$_strategy,
181 'local|l' => \$_local,
182 'fetch-all|all' => \$_fetch_all,
183 'dry-run|n' => \$_dry_run,
184 %fc_opts } ],
185 'commit-diff' => [ \&cmd_commit_diff,
186 'Commit a diff between two trees',
187 { 'message|m=s' => \$_message,
188 'file|F=s' => \$_file,
189 'revision|r=s' => \$_revision,
190 %cmt_opts } ],
191 'info' => [ \&cmd_info,
192 "Show info about the latest SVN revision
193 on the current branch",
194 { 'url' => \$_url, } ],
195 'blame' => [ \&Git::SVN::Log::cmd_blame,
196 "Show what revision and author last modified each line of a file",
197 { 'git-format' => \$_git_format } ],
198);
199my $cmd;
201for (my $i = 0; $i < @ARGV; $i++) {
202 if (defined $cmd{$ARGV[$i]}) {
203 $cmd = $ARGV[$i];
204 splice @ARGV, $i, 1;
205 last;
206 }
207};
208# make sure we're always running at the top-level working directory
210unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
211 unless (-d $ENV{GIT_DIR}) {
212 if ($git_dir_user_set) {
213 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
214 "but it is not a directory\n";
215 }
216 my $git_dir = delete $ENV{GIT_DIR};
217 chomp(my $cdup = command_oneline(qw/rev-parse --show-cdup/));
218 unless (length $cdup) {
219 die "Already at toplevel, but $git_dir ",
220 "not found '$cdup'\n";
221 }
222 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
223 unless (-d $git_dir) {
224 die "$git_dir still not found after going to ",
225 "'$cdup'\n";
226 }
227 $ENV{GIT_DIR} = $git_dir;
228 }
229 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
230}
231my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
233read_repo_config(\%opts);
235if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
236 Getopt::Long::Configure('pass_through');
237}
238my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
239 'minimize-connections' => \$Git::SVN::Migration::_minimize,
240 'id|i=s' => \$Git::SVN::default_ref_id,
241 'svn-remote|remote|R=s' => sub {
242 $Git::SVN::no_reuse_existing = 1;
243 $Git::SVN::default_repo_id = $_[1] });
244exit 1 if (!$rv && $cmd && $cmd ne 'log');
245usage(0) if $_help;
247version() if $_version;
248usage(1) unless defined $cmd;
249load_authors() if $_authors;
250unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
252 Git::SVN::Migration::migration_check();
253}
254Git::SVN::init_vars();
255eval {
256 Git::SVN::verify_remotes_sanity();
257 $cmd{$cmd}->[0]->(@ARGV);
258};
259fatal $@ if $@;
260post_fetch_checkout();
261exit 0;
262####################### primary functions ######################
264sub usage {
265 my $exit = shift || 0;
266 my $fd = $exit ? \*STDERR : \*STDOUT;
267 print $fd <<"";
268git-svn - bidirectional operations between a single Subversion tree and git
269Usage: git svn <command> [options] [arguments]\n
270 print $fd "Available commands:\n" unless $cmd;
272 foreach (sort keys %cmd) {
274 next if $cmd && $cmd ne $_;
275 next if /^multi-/; # don't show deprecated commands
276 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
277 foreach (sort keys %{$cmd{$_}->[2]}) {
278 # mixed-case options are for .git/config only
279 next if /[A-Z]/ && /^[a-z]+$/i;
280 # prints out arguments as they should be passed:
281 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
282 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
283 "--$_" : "-$_" }
284 split /\|/,$_)," $x\n";
285 }
286 }
287 print $fd <<"";
288\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
289arbitrary identifier if you're tracking multiple SVN branches/repositories in
290one git repository and want to keep them separate. See git-svn(1) for more
291information.
292 exit $exit;
294}
295sub version {
297 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
298 exit 0;
299}
300sub do_git_init_db {
302 unless (-d $ENV{GIT_DIR}) {
303 my @init_db = ('init');
304 push @init_db, "--template=$_template" if defined $_template;
305 if (defined $_shared) {
306 if ($_shared =~ /[a-z]/) {
307 push @init_db, "--shared=$_shared";
308 } else {
309 push @init_db, "--shared";
310 }
311 }
312 command_noisy(@init_db);
313 $_repository = Git->repository(Repository => ".git");
314 }
315 my $set;
316 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
317 foreach my $i (keys %icv) {
318 die "'$set' and '$i' cannot both be set\n" if $set;
319 next unless defined $icv{$i};
320 command_noisy('config', "$pfx.$i", $icv{$i});
321 $set = $i;
322 }
323}
324sub init_subdir {
326 my $repo_path = shift or return;
327 mkpath([$repo_path]) unless -d $repo_path;
328 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
329 $ENV{GIT_DIR} = '.git';
330 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
331}
332sub cmd_clone {
334 my ($url, $path) = @_;
335 if (!defined $path &&
336 (defined $_trunk || defined $_branches || defined $_tags ||
337 defined $_stdlayout) &&
338 $url !~ m#^[a-z\+]+://#) {
339 $path = $url;
340 }
341 $path = basename($url) if !defined $path || !length $path;
342 cmd_init($url, $path);
343 Git::SVN::fetch_all($Git::SVN::default_repo_id);
344}
345sub cmd_init {
347 if (defined $_stdlayout) {
348 $_trunk = 'trunk' if (!defined $_trunk);
349 $_tags = 'tags' if (!defined $_tags);
350 $_branches = 'branches' if (!defined $_branches);
351 }
352 if (defined $_trunk || defined $_branches || defined $_tags) {
353 return cmd_multi_init(@_);
354 }
355 my $url = shift or die "SVN repository location required ",
356 "as a command-line argument\n";
357 init_subdir(@_);
358 do_git_init_db();
359 Git::SVN->init($url);
361}
362sub cmd_fetch {
364 if (grep /^\d+=./, @_) {
365 die "'<rev>=<commit>' fetch arguments are ",
366 "no longer supported.\n";
367 }
368 my ($remote) = @_;
369 if (@_ > 1) {
370 die "Usage: $0 fetch [--all] [svn-remote]\n";
371 }
372 $remote ||= $Git::SVN::default_repo_id;
373 if ($_fetch_all) {
374 cmd_multi_fetch();
375 } else {
376 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
377 }
378}
379sub cmd_set_tree {
381 my (@commits) = @_;
382 if ($_stdin || !@commits) {
383 print "Reading from stdin...\n";
384 @commits = ();
385 while (<STDIN>) {
386 if (/\b($sha1_short)\b/o) {
387 unshift @commits, $1;
388 }
389 }
390 }
391 my @revs;
392 foreach my $c (@commits) {
393 my @tmp = command('rev-parse',$c);
394 if (scalar @tmp == 1) {
395 push @revs, $tmp[0];
396 } elsif (scalar @tmp > 1) {
397 push @revs, reverse(command('rev-list',@tmp));
398 } else {
399 fatal "Failed to rev-parse $c";
400 }
401 }
402 my $gs = Git::SVN->new;
403 my ($r_last, $cmt_last) = $gs->last_rev_commit;
404 $gs->fetch;
405 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
406 fatal "There are new revisions that were fetched ",
407 "and need to be merged (or acknowledged) ",
408 "before committing.\nlast rev: $r_last\n",
409 " current: $gs->{last_rev}";
410 }
411 $gs->set_tree($_) foreach @revs;
412 print "Done committing ",scalar @revs," revisions to SVN\n";
413 unlink $gs->{index};
414}
415sub cmd_dcommit {
417 my $head = shift;
418 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) }
419 'Cannot dcommit with a dirty index. Commit your changes first, '
420 . "or stash them with `git stash'.\n";
421 $head ||= 'HEAD';
422 my @refs;
423 my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
424 $url = defined $_commit_url ? $_commit_url : $gs->full_url;
425 my $last_rev = $_revision if defined $_revision;
426 if ($url) {
427 print "Committing to $url ...\n";
428 }
429 unless ($gs) {
430 die "Unable to determine upstream SVN information from ",
431 "$head history.\nPerhaps the repository is empty.";
432 }
433 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
434 if ($_no_rebase && scalar(@$linear_refs) > 1) {
435 warn "Attempting to commit more than one change while ",
436 "--no-rebase is enabled.\n",
437 "If these changes depend on each other, re-running ",
438 "without --no-rebase may be required."
439 }
440 my $expect_url = $url;
441 Git::SVN::remove_username($expect_url);
442 while (1) {
443 my $d = shift @$linear_refs or last;
444 unless (defined $last_rev) {
445 (undef, $last_rev, undef) = cmt_metadata("$d~1");
446 unless (defined $last_rev) {
447 fatal "Unable to extract revision information ",
448 "from commit $d~1";
449 }
450 }
451 if ($_dry_run) {
452 print "diff-tree $d~1 $d\n";
453 } else {
454 my $cmt_rev;
455 my %ed_opts = ( r => $last_rev,
456 log => get_commit_entry($d)->{log},
457 ra => Git::SVN::Ra->new($url),
458 config => SVN::Core::config_get_config(
459 $Git::SVN::Ra::config_dir
460 ),
461 tree_a => "$d~1",
462 tree_b => $d,
463 editor_cb => sub {
464 print "Committed r$_[0]\n";
465 $cmt_rev = $_[0];
466 },
467 svn_path => '');
468 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
469 print "No changes\n$d~1 == $d\n";
470 } elsif ($parents->{$d} && @{$parents->{$d}}) {
471 $gs->{inject_parents_dcommit}->{$cmt_rev} =
472 $parents->{$d};
473 }
474 $_fetch_all ? $gs->fetch_all : $gs->fetch;
475 $last_rev = $cmt_rev;
476 next if $_no_rebase;
477 # we always want to rebase against the current HEAD,
479 # not any head that was passed to us
480 my @diff = command('diff-tree', $d,
481 $gs->refname, '--');
482 my @finish;
483 if (@diff) {
484 @finish = rebase_cmd();
485 print STDERR "W: $d and ", $gs->refname,
486 " differ, using @finish:\n",
487 join("\n", @diff), "\n";
488 } else {
489 print "No changes between current HEAD and ",
490 $gs->refname,
491 "\nResetting to the latest ",
492 $gs->refname, "\n";
493 @finish = qw/reset --mixed/;
494 }
495 command_noisy(@finish, $gs->refname);
496 if (@diff) {
497 @refs = ();
498 my ($url_, $rev_, $uuid_, $gs_) =
499 working_head_info($head, \@refs);
500 my ($linear_refs_, $parents_) =
501 linearize_history($gs_, \@refs);
502 if (scalar(@$linear_refs) !=
503 scalar(@$linear_refs_)) {
504 fatal "# of revisions changed ",
505 "\nbefore:\n",
506 join("\n", @$linear_refs),
507 "\n\nafter:\n",
508 join("\n", @$linear_refs_), "\n",
509 'If you are attempting to commit ',
510 "merges, try running:\n\t",
511 'git rebase --interactive',
512 '--preserve-merges ',
513 $gs->refname,
514 "\nBefore dcommitting";
515 }
516 if ($url_ ne $expect_url) {
517 fatal "URL mismatch after rebase: ",
518 "$url_ != $expect_url";
519 }
520 if ($uuid_ ne $uuid) {
521 fatal "uuid mismatch after rebase: ",
522 "$uuid_ != $uuid";
523 }
524 # remap parents
525 my (%p, @l, $i);
526 for ($i = 0; $i < scalar @$linear_refs; $i++) {
527 my $new = $linear_refs_->[$i] or next;
528 $p{$new} =
529 $parents->{$linear_refs->[$i]};
530 push @l, $new;
531 }
532 $parents = \%p;
533 $linear_refs = \@l;
534 }
535 }
536 }
537 unlink $gs->{index};
538}
539sub cmd_find_rev {
541 my $revision_or_hash = shift or die "SVN or git revision required ",
542 "as a command-line argument\n";
543 my $result;
544 if ($revision_or_hash =~ /^r\d+$/) {
545 my $head = shift;
546 $head ||= 'HEAD';
547 my @refs;
548 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
549 unless ($gs) {
550 die "Unable to determine upstream SVN information from ",
551 "$head history\n";
552 }
553 my $desired_revision = substr($revision_or_hash, 1);
554 $result = $gs->rev_map_get($desired_revision, $uuid);
555 } else {
556 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
557 $result = $rev;
558 }
559 print "$result\n" if $result;
560}
561sub cmd_rebase {
563 command_noisy(qw/update-index --refresh/);
564 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
565 unless ($gs) {
566 die "Unable to determine upstream SVN information from ",
567 "working tree history\n";
568 }
569 if ($_dry_run) {
570 print "Remote Branch: " . $gs->refname . "\n";
571 print "SVN URL: " . $url . "\n";
572 return;
573 }
574 if (command(qw/diff-index HEAD --/)) {
575 print STDERR "Cannot rebase with uncommited changes:\n";
576 command_noisy('status');
577 exit 1;
578 }
579 unless ($_local) {
580 # rebase will checkout for us, so no need to do it explicitly
581 $_no_checkout = 'true';
582 $_fetch_all ? $gs->fetch_all : $gs->fetch;
583 }
584 command_noisy(rebase_cmd(), $gs->refname);
585}
586sub cmd_show_ignore {
588 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
589 $gs ||= Git::SVN->new;
590 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
591 $gs->prop_walk($gs->{path}, $r, sub {
592 my ($gs, $path, $props) = @_;
593 print STDOUT "\n# $path\n";
594 my $s = $props->{'svn:ignore'} or return;
595 $s =~ s/[\r\n]+/\n/g;
596 chomp $s;
597 $s =~ s#^#$path#gm;
598 print STDOUT "$s\n";
599 });
600}
601sub cmd_show_externals {
603 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
604 $gs ||= Git::SVN->new;
605 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
606 $gs->prop_walk($gs->{path}, $r, sub {
607 my ($gs, $path, $props) = @_;
608 print STDOUT "\n# $path\n";
609 my $s = $props->{'svn:externals'} or return;
610 $s =~ s/[\r\n]+/\n/g;
611 chomp $s;
612 $s =~ s#^#$path#gm;
613 print STDOUT "$s\n";
614 });
615}
616sub cmd_create_ignore {
618 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
619 $gs ||= Git::SVN->new;
620 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
621 $gs->prop_walk($gs->{path}, $r, sub {
622 my ($gs, $path, $props) = @_;
623 # $path is of the form /path/to/dir/
624 my $ignore = '.' . $path . '.gitignore';
625 my $s = $props->{'svn:ignore'} or return;
626 open(GITIGNORE, '>', $ignore)
627 or fatal("Failed to open `$ignore' for writing: $!");
628 $s =~ s/[\r\n]+/\n/g;
629 chomp $s;
630 # Prefix all patterns so that the ignore doesn't apply
631 # to sub-directories.
632 $s =~ s#^#/#gm;
633 print GITIGNORE "$s\n";
634 close(GITIGNORE)
635 or fatal("Failed to close `$ignore': $!");
636 command_noisy('add', '-f', $ignore);
637 });
638}
639sub canonicalize_path {
641 my ($path) = @_;
642 my $dot_slash_added = 0;
643 if (substr($path, 0, 1) ne "/") {
644 $path = "./" . $path;
645 $dot_slash_added = 1;
646 }
647 # File::Spec->canonpath doesn't collapse x/../y into y (for a
648 # good reason), so let's do this manually.
649 $path =~ s#/+#/#g;
650 $path =~ s#/\.(?:/|$)#/#g;
651 $path =~ s#/[^/]+/\.\.##g;
652 $path =~ s#/$##g;
653 $path =~ s#^\./## if $dot_slash_added;
654 $path =~ s#^/##;
655 $path =~ s#^\.$##;
656 return $path;
657}
658# get_svnprops(PATH)
660# ------------------
661# Helper for cmd_propget and cmd_proplist below.
662sub get_svnprops {
663 my $path = shift;
664 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
665 $gs ||= Git::SVN->new;
666 # prefix THE PATH by the sub-directory from which the user
668 # invoked us.
669 $path = $cmd_dir_prefix . $path;
670 fatal("No such file or directory: $path") unless -e $path;
671 my $is_dir = -d $path ? 1 : 0;
672 $path = $gs->{path} . '/' . $path;
673 # canonicalize the path (otherwise libsvn will abort or fail to
675 # find the file)
676 $path = canonicalize_path($path);
677 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
679 my $props;
680 if ($is_dir) {
681 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
682 }
683 else {
684 (undef, $props) = $gs->ra->get_file($path, $r, undef);
685 }
686 return $props;
687}
688# cmd_propget (PROP, PATH)
690# ------------------------
691# Print the SVN property PROP for PATH.
692sub cmd_propget {
693 my ($prop, $path) = @_;
694 $path = '.' if not defined $path;
695 usage(1) if not defined $prop;
696 my $props = get_svnprops($path);
697 if (not defined $props->{$prop}) {
698 fatal("`$path' does not have a `$prop' SVN property.");
699 }
700 print $props->{$prop} . "\n";
701}
702# cmd_proplist (PATH)
704# -------------------
705# Print the list of SVN properties for PATH.
706sub cmd_proplist {
707 my $path = shift;
708 $path = '.' if not defined $path;
709 my $props = get_svnprops($path);
710 print "Properties on '$path':\n";
711 foreach (sort keys %{$props}) {
712 print " $_\n";
713 }
714}
715sub cmd_multi_init {
717 my $url = shift;
718 unless (defined $_trunk || defined $_branches || defined $_tags) {
719 usage(1);
720 }
721 # there are currently some bugs that prevent multi-init/multi-fetch
723 # setups from working well without this.
724 $Git::SVN::_minimize_url = 1;
725 $_prefix = '' unless defined $_prefix;
727 if (defined $url) {
728 $url =~ s#/+$##;
729 init_subdir(@_);
730 }
731 do_git_init_db();
732 if (defined $_trunk) {
733 my $trunk_ref = $_prefix . 'trunk';
734 # try both old-style and new-style lookups:
735 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
736 unless ($gs_trunk) {
737 my ($trunk_url, $trunk_path) =
738 complete_svn_url($url, $_trunk);
739 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
740 undef, $trunk_ref);
741 }
742 }
743 return unless defined $_branches || defined $_tags;
744 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
745 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
746 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
747}
748sub cmd_multi_fetch {
750 my $remotes = Git::SVN::read_all_remotes();
751 foreach my $repo_id (sort keys %$remotes) {
752 if ($remotes->{$repo_id}->{url}) {
753 Git::SVN::fetch_all($repo_id, $remotes);
754 }
755 }
756}
757# this command is special because it requires no metadata
759sub cmd_commit_diff {
760 my ($ta, $tb, $url) = @_;
761 my $usage = "Usage: $0 commit-diff -r<revision> ".
762 "<tree-ish> <tree-ish> [<URL>]";
763 fatal($usage) if (!defined $ta || !defined $tb);
764 my $svn_path = '';
765 if (!defined $url) {
766 my $gs = eval { Git::SVN->new };
767 if (!$gs) {
768 fatal("Needed URL or usable git-svn --id in ",
769 "the command-line\n", $usage);
770 }
771 $url = $gs->{url};
772 $svn_path = $gs->{path};
773 }
774 unless (defined $_revision) {
775 fatal("-r|--revision is a required argument\n", $usage);
776 }
777 if (defined $_message && defined $_file) {
778 fatal("Both --message/-m and --file/-F specified ",
779 "for the commit message.\n",
780 "I have no idea what you mean");
781 }
782 if (defined $_file) {
783 $_message = file_to_s($_file);
784 } else {
785 $_message ||= get_commit_entry($tb)->{log};
786 }
787 my $ra ||= Git::SVN::Ra->new($url);
788 my $r = $_revision;
789 if ($r eq 'HEAD') {
790 $r = $ra->get_latest_revnum;
791 } elsif ($r !~ /^\d+$/) {
792 die "revision argument: $r not understood by git-svn\n";
793 }
794 my %ed_opts = ( r => $r,
795 log => $_message,
796 ra => $ra,
797 tree_a => $ta,
798 tree_b => $tb,
799 editor_cb => sub { print "Committed r$_[0]\n" },
800 svn_path => $svn_path );
801 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
802 print "No changes\n$ta == $tb\n";
803 }
804}
805sub cmd_info {
807 my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
808 if (exists $_[1]) {
809 die "Too many arguments specified\n";
810 }
811 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
813 if (!$file_type && !$diff_status) {
815 print STDERR "$path: (Not a versioned resource)\n\n";
816 return;
817 }
818 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
820 unless ($gs) {
821 die "Unable to determine upstream SVN information from ",
822 "working tree history\n";
823 }
824 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
826 $path = "." if $path eq "";
827 my $full_url = $url . ($path eq "." ? "" : "/$path");
829 if ($_url) {
831 print $full_url, "\n";
832 return;
833 }
834 my $result = "Path: $path\n";
836 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
837 $result .= "URL: " . $full_url . "\n";
838 eval {
840 my $repos_root = $gs->repos_root;
841 Git::SVN::remove_username($repos_root);
842 $result .= "Repository Root: $repos_root\n";
843 };
844 if ($@) {
845 $result .= "Repository Root: (offline)\n";
846 }
847 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A";
848 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
849 $result .= "Node Kind: " .
851 ($file_type eq "dir" ? "directory" : "file") . "\n";
852 my $schedule = $diff_status eq "A"
854 ? "add"
855 : ($diff_status eq "D" ? "delete" : "normal");
856 $result .= "Schedule: $schedule\n";
857 if ($diff_status eq "A") {
859 print $result, "\n";
860 return;
861 }
862 my ($lc_author, $lc_rev, $lc_date_utc);
864 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $path);
865 my $log = command_output_pipe(@args);
866 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
867 while (<$log>) {
868 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
869 $lc_author = $1;
870 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
871 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
872 (undef, $lc_rev, undef) = ::extract_metadata($1);
873 }
874 }
875 close $log;
876 Git::SVN::Log::set_local_timezone();
878 $result .= "Last Changed Author: $lc_author\n";
880 $result .= "Last Changed Rev: $lc_rev\n";
881 $result .= "Last Changed Date: " .
882 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
883 if ($file_type ne "dir") {
885 my $text_last_updated_date =
886 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
887 $result .=
888 "Text Last Updated: " .
889 Git::SVN::Log::format_svn_date($text_last_updated_date) .
890 "\n";
891 my $checksum;
892 if ($diff_status eq "D") {
893 my ($fh, $ctx) =
894 command_output_pipe(qw(cat-file blob), "HEAD:$path");
895 if ($file_type eq "link") {
896 my $file_name = <$fh>;
897 $checksum = md5sum("link $file_name");
898 } else {
899 $checksum = md5sum($fh);
900 }
901 command_close_pipe($fh, $ctx);
902 } elsif ($file_type eq "link") {
903 my $file_name =
904 command(qw(cat-file blob), "HEAD:$path");
905 $checksum =
906 md5sum("link " . $file_name);
907 } else {
908 open FILE, "<", $path or die $!;
909 $checksum = md5sum(\*FILE);
910 close FILE or die $!;
911 }
912 $result .= "Checksum: " . $checksum . "\n";
913 }
914 print $result, "\n";
916}
917########################### utility functions #########################
919sub rebase_cmd {
921 my @cmd = qw/rebase/;
922 push @cmd, '-v' if $_verbose;
923 push @cmd, qw/--merge/ if $_merge;
924 push @cmd, "--strategy=$_strategy" if $_strategy;
925 @cmd;
926}
927sub post_fetch_checkout {
929 return if $_no_checkout;
930 my $gs = $Git::SVN::_head or return;
931 return if verify_ref('refs/heads/master^0');
932 my $valid_head = verify_ref('HEAD^0');
934 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
935 return if ($valid_head || !verify_ref('HEAD^0'));
936 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
938 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
939 return if -f $index;
940 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
942 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
943 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
944 print STDERR "Checked out HEAD:\n ",
945 $gs->full_url, " r", $gs->last_rev, "\n";
946}
947sub complete_svn_url {
949 my ($url, $path) = @_;
950 $path =~ s#/+$##;
951 if ($path !~ m#^[a-z\+]+://#) {
952 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
953 fatal("E: '$path' is not a complete URL ",
954 "and a separate URL is not specified");
955 }
956 return ($url, $path);
957 }
958 return ($path, '');
959}
960sub complete_url_ls_init {
962 my ($ra, $repo_path, $switch, $pfx) = @_;
963 unless ($repo_path) {
964 print STDERR "W: $switch not specified\n";
965 return;
966 }
967 $repo_path =~ s#/+$##;
968 if ($repo_path =~ m#^[a-z\+]+://#) {
969 $ra = Git::SVN::Ra->new($repo_path);
970 $repo_path = '';
971 } else {
972 $repo_path =~ s#^/+##;
973 unless ($ra) {
974 fatal("E: '$repo_path' is not a complete URL ",
975 "and a separate URL is not specified");
976 }
977 }
978 my $url = $ra->{url};
979 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
980 my $k = "svn-remote.$gs->{repo_id}.url";
981 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
982 if ($orig_url && ($orig_url ne $gs->{url})) {
983 die "$k already set: $orig_url\n",
984 "wanted to set to: $gs->{url}\n";
985 }
986 command_oneline('config', $k, $gs->{url}) unless $orig_url;
987 my $remote_path = "$ra->{svn_path}/$repo_path";
988 $remote_path =~ s#/+#/#g;
989 $remote_path =~ s#^/##g;
990 $remote_path .= "/*" if $remote_path !~ /\*/;
991 my ($n) = ($switch =~ /^--(\w+)/);
992 if (length $pfx && $pfx !~ m#/$#) {
993 die "--prefix='$pfx' must have a trailing slash '/'\n";
994 }
995 command_noisy('config',
996 "svn-remote.$gs->{repo_id}.$n",
997 "$remote_path:refs/remotes/$pfx*" .
998 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
999}
1000sub verify_ref {
1002 my ($ref) = @_;
1003 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1004 { STDERR => 0 }); };
1005}
1006sub get_tree_from_treeish {
1008 my ($treeish) = @_;
1009 # $treeish can be a symbolic ref, too:
1010 my $type = command_oneline(qw/cat-file -t/, $treeish);
1011 my $expected;
1012 while ($type eq 'tag') {
1013 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1014 }
1015 if ($type eq 'commit') {
1016 $expected = (grep /^tree /, command(qw/cat-file commit/,
1017 $treeish))[0];
1018 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1019 die "Unable to get tree from $treeish\n" unless $expected;
1020 } elsif ($type eq 'tree') {
1021 $expected = $treeish;
1022 } else {
1023 die "$treeish is a $type, expected tree, tag or commit\n";
1024 }
1025 return $expected;
1026}
1027sub get_commit_entry {
1029 my ($treeish) = shift;
1030 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1031 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1032 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1033 open my $log_fh, '>', $commit_editmsg or croak $!;
1034 my $type = command_oneline(qw/cat-file -t/, $treeish);
1036 if ($type eq 'commit' || $type eq 'tag') {
1037 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1038 $type, $treeish);
1039 my $in_msg = 0;
1040 my $author;
1041 my $saw_from = 0;
1042 my $msgbuf = "";
1043 while (<$msg_fh>) {
1044 if (!$in_msg) {
1045 $in_msg = 1 if (/^\s*$/);
1046 $author = $1 if (/^author (.*>)/);
1047 } elsif (/^git-svn-id: /) {
1048 # skip this for now, we regenerate the
1049 # correct one on re-fetch anyways
1050 # TODO: set *:merge properties or like...
1051 } else {
1052 if (/^From:/ || /^Signed-off-by:/) {
1053 $saw_from = 1;
1054 }
1055 $msgbuf .= $_;
1056 }
1057 }
1058 $msgbuf =~ s/\s+$//s;
1059 if ($Git::SVN::_add_author_from && defined($author)
1060 && !$saw_from) {
1061 $msgbuf .= "\n\nFrom: $author";
1062 }
1063 print $log_fh $msgbuf or croak $!;
1064 command_close_pipe($msg_fh, $ctx);
1065 }
1066 close $log_fh or croak $!;
1067 if ($_edit || ($type eq 'tree')) {
1069 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1070 # TODO: strip out spaces, comments, like git-commit.sh
1071 system($editor, $commit_editmsg);
1072 }
1073 rename $commit_editmsg, $commit_msg or croak $!;
1074 open $log_fh, '<', $commit_msg or croak $!;
1075 { local $/; chomp($log_entry{log} = <$log_fh>); }
1076 close $log_fh or croak $!;
1077 unlink $commit_msg;
1078 \%log_entry;
1079}
1080sub s_to_file {
1082 my ($str, $file, $mode) = @_;
1083 open my $fd,'>',$file or croak $!;
1084 print $fd $str,"\n" or croak $!;
1085 close $fd or croak $!;
1086 chmod ($mode &~ umask, $file) if (defined $mode);
1087}
1088sub file_to_s {
1090 my $file = shift;
1091 open my $fd,'<',$file or croak "$!: file: $file\n";
1092 local $/;
1093 my $ret = <$fd>;
1094 close $fd or croak $!;
1095 $ret =~ s/\s*$//s;
1096 return $ret;
1097}
1098# '<svn username> = real-name <email address>' mapping based on git-svnimport:
1100sub load_authors {
1101 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1102 my $log = $cmd eq 'log';
1103 while (<$authors>) {
1104 chomp;
1105 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1106 my ($user, $name, $email) = ($1, $2, $3);
1107 if ($log) {
1108 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1109 } else {
1110 $users{$user} = [$name, $email];
1111 }
1112 }
1113 close $authors or croak $!;
1114}
1115# convert GetOpt::Long specs for use by git-config
1117sub read_repo_config {
1118 return unless -d $ENV{GIT_DIR};
1119 my $opts = shift;
1120 my @config_only;
1121 foreach my $o (keys %$opts) {
1122 # if we have mixedCase and a long option-only, then
1123 # it's a config-only variable that we don't need for
1124 # the command-line.
1125 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1126 my $v = $opts->{$o};
1127 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1128 $key =~ s/-//g;
1129 my $arg = 'git-config';
1130 $arg .= ' --int' if ($o =~ /[:=]i$/);
1131 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1132 if (ref $v eq 'ARRAY') {
1133 chomp(my @tmp = `$arg --get-all svn.$key`);
1134 @$v = @tmp if @tmp;
1135 } else {
1136 chomp(my $tmp = `$arg --get svn.$key`);
1137 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1138 $$v = $tmp;
1139 }
1140 }
1141 }
1142 delete @$opts{@config_only} if @config_only;
1143}
1144sub extract_metadata {
1146 my $id = shift or return (undef, undef, undef);
1147 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1148 \s([a-f\d\-]+)$/x);
1149 if (!defined $rev || !$uuid || !$url) {
1150 # some of the original repositories I made had
1151 # identifiers like this:
1152 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1153 }
1154 return ($url, $rev, $uuid);
1155}
1156sub cmt_metadata {
1158 return extract_metadata((grep(/^git-svn-id: /,
1159 command(qw/cat-file commit/, shift)))[-1]);
1160}
1161sub working_head_info {
1163 my ($head, $refs) = @_;
1164 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1165 my ($fh, $ctx) = command_output_pipe(@args, $head);
1166 my $hash;
1167 my %max;
1168 while (<$fh>) {
1169 if ( m{^commit ($::sha1)$} ) {
1170 unshift @$refs, $hash if $hash and $refs;
1171 $hash = $1;
1172 next;
1173 }
1174 next unless s{^\s*(git-svn-id:)}{$1};
1175 my ($url, $rev, $uuid) = extract_metadata($_);
1176 if (defined $url && defined $rev) {
1177 next if $max{$url} and $max{$url} < $rev;
1178 if (my $gs = Git::SVN->find_by_url($url)) {
1179 my $c = $gs->rev_map_get($rev, $uuid);
1180 if ($c && $c eq $hash) {
1181 close $fh; # break the pipe
1182 return ($url, $rev, $uuid, $gs);
1183 } else {
1184 $max{$url} ||= $gs->rev_map_max;
1185 }
1186 }
1187 }
1188 }
1189 command_close_pipe($fh, $ctx);
1190 (undef, undef, undef, undef);
1191}
1192sub read_commit_parents {
1194 my ($parents, $c) = @_;
1195 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1196 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1197 @{$parents->{$c}} = split(/ /, $p);
1198}
1199sub linearize_history {
1201 my ($gs, $refs) = @_;
1202 my %parents;
1203 foreach my $c (@$refs) {
1204 read_commit_parents(\%parents, $c);
1205 }
1206 my @linear_refs;
1208 my %skip = ();
1209 my $last_svn_commit = $gs->last_commit;
1210 foreach my $c (reverse @$refs) {
1211 next if $c eq $last_svn_commit;
1212 last if $skip{$c};
1213 unshift @linear_refs, $c;
1215 $skip{$c} = 1;
1216 # we only want the first parent to diff against for linear
1218 # history, we save the rest to inject when we finalize the
1219 # svn commit
1220 my $fp_a = verify_ref("$c~1");
1221 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1222 if (!$fp_a || !$fp_b) {
1223 die "Commit $c\n",
1224 "has no parent commit, and therefore ",
1225 "nothing to diff against.\n",
1226 "You should be working from a repository ",
1227 "originally created by git-svn\n";
1228 }
1229 if ($fp_a ne $fp_b) {
1230 die "$c~1 = $fp_a, however parsing commit $c ",
1231 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1232 }
1233 foreach my $p (@{$parents{$c}}) {
1235 $skip{$p} = 1;
1236 }
1237 }
1238 (\@linear_refs, \%parents);
1239}
1240sub find_file_type_and_diff_status {
1242 my ($path) = @_;
1243 return ('dir', '') if $path eq '';
1244 my $diff_output =
1246 command_oneline(qw(diff --cached --name-status --), $path) || "";
1247 my $diff_status = (split(' ', $diff_output))[0] || "";
1248 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1250 return (undef, undef) if !$diff_status && !$ls_tree;
1252 if ($diff_status eq "A") {
1254 return ("link", $diff_status) if -l $path;
1255 return ("dir", $diff_status) if -d $path;
1256 return ("file", $diff_status);
1257 }
1258 my $mode = (split(' ', $ls_tree))[0] || "";
1260 return ("link", $diff_status) if $mode eq "120000";
1262 return ("dir", $diff_status) if $mode eq "040000";
1263 return ("file", $diff_status);
1264}
1265sub md5sum {
1267 my $arg = shift;
1268 my $ref = ref $arg;
1269 my $md5 = Digest::MD5->new();
1270 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
1271 $md5->addfile($arg) or croak $!;
1272 } elsif ($ref eq 'SCALAR') {
1273 $md5->add($$arg) or croak $!;
1274 } elsif (!$ref) {
1275 $md5->add($arg) or croak $!;
1276 } else {
1277 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1278 }
1279 return $md5->hexdigest();
1280}
1281package Git::SVN;
1283use strict;
1284use warnings;
1285use Fcntl qw/:DEFAULT :seek/;
1286use constant rev_map_fmt => 'NH40';
1287use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1288 $_repack $_repack_flags $_use_svm_props $_head
1289 $_use_svnsync_props $no_reuse_existing $_minimize_url
1290 $_use_log_author $_add_author_from/;
1291use Carp qw/croak/;
1292use File::Path qw/mkpath/;
1293use File::Copy qw/copy/;
1294use IPC::Open3;
1295my ($_gc_nr, $_gc_period);
1297# properties that we do not log:
1299my %SKIP_PROP;
1300BEGIN {
1301 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1302 svn:special svn:executable
1303 svn:entry:committed-rev
1304 svn:entry:last-author
1305 svn:entry:uuid
1306 svn:entry:committed-date/;
1307 # some options are read globally, but can be overridden locally
1309 # per [svn-remote "..."] section. Command-line options will *NOT*
1310 # override options set in an [svn-remote "..."] section
1311 no strict 'refs';
1312 for my $option (qw/follow_parent no_metadata use_svm_props
1313 use_svnsync_props/) {
1314 my $key = $option;
1315 $key =~ tr/_//d;
1316 my $prop = "-$option";
1317 *$option = sub {
1318 my ($self) = @_;
1319 return $self->{$prop} if exists $self->{$prop};
1320 my $k = "svn-remote.$self->{repo_id}.$key";
1321 eval { command_oneline(qw/config --get/, $k) };
1322 if ($@) {
1323 $self->{$prop} = ${"Git::SVN::_$option"};
1324 } else {
1325 my $v = command_oneline(qw/config --bool/,$k);
1326 $self->{$prop} = $v eq 'false' ? 0 : 1;
1327 }
1328 return $self->{$prop};
1329 }
1330 }
1331}
1332my (%LOCKFILES, %INDEX_FILES);
1335END {
1336 unlink keys %LOCKFILES if %LOCKFILES;
1337 unlink keys %INDEX_FILES if %INDEX_FILES;
1338}
1339sub resolve_local_globs {
1341 my ($url, $fetch, $glob_spec) = @_;
1342 return unless defined $glob_spec;
1343 my $ref = $glob_spec->{ref};
1344 my $path = $glob_spec->{path};
1345 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
1346 next unless m#^refs/remotes/$ref->{regex}$#;
1347 my $p = $1;
1348 my $pathname = desanitize_refname($path->full_path($p));
1349 my $refname = desanitize_refname($ref->full_path($p));
1350 if (my $existing = $fetch->{$pathname}) {
1351 if ($existing ne $refname) {
1352 die "Refspec conflict:\n",
1353 "existing: refs/remotes/$existing\n",
1354 " globbed: refs/remotes/$refname\n";
1355 }
1356 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
1357 $u =~ s!^\Q$url\E(/|$)!! or die
1358 "refs/remotes/$refname: '$url' not found in '$u'\n";
1359 if ($pathname ne $u) {
1360 warn "W: Refspec glob conflict ",
1361 "(ref: refs/remotes/$refname):\n",
1362 "expected path: $pathname\n",
1363 " real path: $u\n",
1364 "Continuing ahead with $u\n";
1365 next;
1366 }
1367 } else {
1368 $fetch->{$pathname} = $refname;
1369 }
1370 }
1371}
1372sub parse_revision_argument {
1374 my ($base, $head) = @_;
1375 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1376 return ($base, $head);
1377 }
1378 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1379 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1380 return ($head, $head) if ($::_revision eq 'HEAD');
1381 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1382 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1383 die "revision argument: $::_revision not understood by git-svn\n";
1384}
1385sub fetch_all {
1387 my ($repo_id, $remotes) = @_;
1388 if (ref $repo_id) {
1389 my $gs = $repo_id;
1390 $repo_id = undef;
1391 $repo_id = $gs->{repo_id};
1392 }
1393 $remotes ||= read_all_remotes();
1394 my $remote = $remotes->{$repo_id} or
1395 die "[svn-remote \"$repo_id\"] unknown\n";
1396 my $fetch = $remote->{fetch};
1397 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1398 my (@gs, @globs);
1399 my $ra = Git::SVN::Ra->new($url);
1400 my $uuid = $ra->get_uuid;
1401 my $head = $ra->get_latest_revnum;
1402 my $base = defined $fetch ? $head : 0;
1403 # read the max revs for wildcard expansion (branches/*, tags/*)
1405 foreach my $t (qw/branches tags/) {
1406 defined $remote->{$t} or next;
1407 push @globs, $remote->{$t};
1408 my $max_rev = eval { tmp_config(qw/--int --get/,
1409 "svn-remote.$repo_id.${t}-maxRev") };
1410 if (defined $max_rev && ($max_rev < $base)) {
1411 $base = $max_rev;
1412 } elsif (!defined $max_rev) {
1413 $base = 0;
1414 }
1415 }
1416 if ($fetch) {
1418 foreach my $p (sort keys %$fetch) {
1419 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1420 my $lr = $gs->rev_map_max;
1421 if (defined $lr) {
1422 $base = $lr if ($lr < $base);
1423 }
1424 push @gs, $gs;
1425 }
1426 }
1427 ($base, $head) = parse_revision_argument($base, $head);
1429 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1430}
1431sub read_all_remotes {
1433 my $r = {};
1434 my $use_svm_props = eval { command_oneline(qw/config --bool
1435 svn.useSvmProps/) };
1436 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
1437 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1438 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*(.+)\s*$!) {
1439 my ($remote, $local_ref, $_remote_ref) = ($1, $2, $3);
1440 die("svn-remote.$remote: remote ref '$_remote_ref' "
1441 . "must start with 'refs/remotes/'\n")
1442 unless $_remote_ref =~ m{^refs/remotes/(.+)};
1443 my $remote_ref = $1;
1444 $local_ref =~ s{^/}{};
1445 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1446 $r->{$remote}->{svm} = {} if $use_svm_props;
1447 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
1448 $r->{$1}->{svm} = {};
1449 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1450 $r->{$1}->{url} = $2;
1451 } elsif (m!^(.+)\.(branches|tags)=
1452 (.*):refs/remotes/(.+)\s*$/!x) {
1453 my ($p, $g) = ($3, $4);
1454 my $rs = $r->{$1}->{$2} = {
1455 t => $2,
1456 remote => $1,
1457 path => Git::SVN::GlobSpec->new($p),
1458 ref => Git::SVN::GlobSpec->new($g) };
1459 if (length($rs->{ref}->{right}) != 0) {
1460 die "The '*' glob character must be the last ",
1461 "character of '$g'\n";
1462 }
1463 }
1464 }
1465 map {
1467 if (defined $r->{$_}->{svm}) {
1468 my $svm;
1469 eval {
1470 my $section = "svn-remote.$_";
1471 $svm = {
1472 source => tmp_config('--get',
1473 "$section.svm-source"),
1474 replace => tmp_config('--get',
1475 "$section.svm-replace"),
1476 }
1477 };
1478 $r->{$_}->{svm} = $svm;
1479 }
1480 } keys %$r;
1481 $r;
1483}
1484sub init_vars {
1486 $_gc_nr = $_gc_period = 1000;
1487 if (defined $_repack || defined $_repack_flags) {
1488 warn "Repack options are obsolete; they have no effect.\n";
1489 }
1490}
1491sub verify_remotes_sanity {
1493 return unless -d $ENV{GIT_DIR};
1494 my %seen;
1495 foreach (command(qw/config -l/)) {
1496 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1497 if ($seen{$1}) {
1498 die "Remote ref refs/remote/$1 is tracked by",
1499 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1500 "Please resolve this ambiguity in ",
1501 "your git configuration file before ",
1502 "continuing\n";
1503 }
1504 $seen{$1} = $_;
1505 }
1506 }
1507}
1508sub find_existing_remote {
1510 my ($url, $remotes) = @_;
1511 return undef if $no_reuse_existing;
1512 my $existing;
1513 foreach my $repo_id (keys %$remotes) {
1514 my $u = $remotes->{$repo_id}->{url} or next;
1515 next if $u ne $url;
1516 $existing = $repo_id;
1517 last;
1518 }
1519 $existing;
1520}
1521sub init_remote_config {
1523 my ($self, $url, $no_write) = @_;
1524 $url =~ s!/+$!!; # strip trailing slash
1525 my $r = read_all_remotes();
1526 my $existing = find_existing_remote($url, $r);
1527 if ($existing) {
1528 unless ($no_write) {
1529 print STDERR "Using existing ",
1530 "[svn-remote \"$existing\"]\n";
1531 }
1532 $self->{repo_id} = $existing;
1533 } elsif ($_minimize_url) {
1534 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1535 $existing = find_existing_remote($min_url, $r);
1536 if ($existing) {
1537 unless ($no_write) {
1538 print STDERR "Using existing ",
1539 "[svn-remote \"$existing\"]\n";
1540 }
1541 $self->{repo_id} = $existing;
1542 }
1543 if ($min_url ne $url) {
1544 unless ($no_write) {
1545 print STDERR "Using higher level of URL: ",
1546 "$url => $min_url\n";
1547 }
1548 my $old_path = $self->{path};
1549 $self->{path} = $url;
1550 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1551 if (length $old_path) {
1552 $self->{path} .= "/$old_path";
1553 }
1554 $url = $min_url;
1555 }
1556 }
1557 my $orig_url;
1558 if (!$existing) {
1559 # verify that we aren't overwriting anything:
1560 $orig_url = eval {
1561 command_oneline('config', '--get',
1562 "svn-remote.$self->{repo_id}.url")
1563 };
1564 if ($orig_url && ($orig_url ne $url)) {
1565 die "svn-remote.$self->{repo_id}.url already set: ",
1566 "$orig_url\nwanted to set to: $url\n";
1567 }
1568 }
1569 my ($xrepo_id, $xpath) = find_ref($self->refname);
1570 if (defined $xpath) {
1571 die "svn-remote.$xrepo_id.fetch already set to track ",
1572 "$xpath:refs/remotes/", $self->refname, "\n";
1573 }
1574 unless ($no_write) {
1575 command_noisy('config',
1576 "svn-remote.$self->{repo_id}.url", $url);
1577 $self->{path} =~ s{^/}{};
1578 command_noisy('config', '--add',
1579 "svn-remote.$self->{repo_id}.fetch",
1580 "$self->{path}:".$self->refname);
1581 }
1582 $self->{url} = $url;
1583}
1584sub find_by_url { # repos_root and, path are optional
1586 my ($class, $full_url, $repos_root, $path) = @_;
1587 return undef unless defined $full_url;
1589 remove_username($full_url);
1590 remove_username($repos_root) if defined $repos_root;
1591 my $remotes = read_all_remotes();
1592 if (defined $full_url && defined $repos_root && !defined $path) {
1593 $path = $full_url;
1594 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1595 }
1596 foreach my $repo_id (keys %$remotes) {
1597 my $u = $remotes->{$repo_id}->{url} or next;
1598 remove_username($u);
1599 next if defined $repos_root && $repos_root ne $u;
1600 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1602 foreach (qw/branches tags/) {
1603 resolve_local_globs($u, $fetch,
1604 $remotes->{$repo_id}->{$_});
1605 }
1606 my $p = $path;
1607 my $rwr = rewrite_root({repo_id => $repo_id});
1608 my $svm = $remotes->{$repo_id}->{svm}
1609 if defined $remotes->{$repo_id}->{svm};
1610 unless (defined $p) {
1611 $p = $full_url;
1612 my $z = $u;
1613 my $prefix = '';
1614 if ($rwr) {
1615 $z = $rwr;
1616 } elsif (defined $svm) {
1617 $z = $svm->{source};
1618 $prefix = $svm->{replace};
1619 $prefix =~ s#^\Q$u\E(?:/|$)##;
1620 $prefix =~ s#/$##;
1621 }
1622 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
1623 }
1624 foreach my $f (keys %$fetch) {
1625 next if $f ne $p;
1626 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1627 }
1628 }
1629 undef;
1630}
1631sub init {
1633 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1634 my $self = _new($class, $repo_id, $ref_id, $path);
1635 if (defined $url) {
1636 $self->init_remote_config($url, $no_write);
1637 }
1638 $self;
1639}
1640sub find_ref {
1642 my ($ref_id) = @_;
1643 foreach (command(qw/config -l/)) {
1644 next unless m!^svn-remote\.(.+)\.fetch=
1645 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1646 my ($repo_id, $path, $ref) = ($1, $2, $3);
1647 if ($ref eq $ref_id) {
1648 $path = '' if ($path =~ m#^\./?#);
1649 return ($repo_id, $path);
1650 }
1651 }
1652 (undef, undef, undef);
1653}
1654sub new {
1656 my ($class, $ref_id, $repo_id, $path) = @_;
1657 if (defined $ref_id && !defined $repo_id && !defined $path) {
1658 ($repo_id, $path) = find_ref($ref_id);
1659 if (!defined $repo_id) {
1660 die "Could not find a \"svn-remote.*.fetch\" key ",
1661 "in the repository configuration matching: ",
1662 "refs/remotes/$ref_id\n";
1663 }
1664 }
1665 my $self = _new($class, $repo_id, $ref_id, $path);
1666 if (!defined $self->{path} || !length $self->{path}) {
1667 my $fetch = command_oneline('config', '--get',
1668 "svn-remote.$repo_id.fetch",
1669 ":refs/remotes/$ref_id\$") or
1670 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1671 "\":refs/remotes/$ref_id\$\" in config\n";
1672 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1673 }
1674 $self->{url} = command_oneline('config', '--get',
1675 "svn-remote.$repo_id.url") or
1676 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1677 $self->rebuild;
1678 $self;
1679}
1680sub refname {
1682 my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
1683 # It cannot end with a slash /, we'll throw up on this because
1685 # SVN can't have directories with a slash in their name, either:
1686 if ($refname =~ m{/$}) {
1687 die "ref: '$refname' ends with a trailing slash, this is ",
1688 "not permitted by git nor Subversion\n";
1689 }
1690 # It cannot have ASCII control character space, tilde ~, caret ^,
1692 # colon :, question-mark ?, asterisk *, space, or open bracket [
1693 # anywhere.
1694 #
1695 # Additionally, % must be escaped because it is used for escaping
1696 # and we want our escaped refname to be reversible
1697 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
1698 # no slash-separated component can begin with a dot .
1700 # /.* becomes /%2E*
1701 $refname =~ s{/\.}{/%2E}g;
1702 # It cannot have two consecutive dots .. anywhere
1704 # .. becomes %2E%2E
1705 $refname =~ s{\.\.}{%2E%2E}g;
1706 return $refname;
1708}
1709sub desanitize_refname {
1711 my ($refname) = @_;
1712 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
1713 return $refname;
1714}
1715sub svm_uuid {
1717 my ($self) = @_;
1718 return $self->{svm}->{uuid} if $self->svm;
1719 $self->ra;
1720 unless ($self->{svm}) {
1721 die "SVM UUID not cached, and reading remotely failed\n";
1722 }
1723 $self->{svm}->{uuid};
1724}
1725sub svm {
1727 my ($self) = @_;
1728 return $self->{svm} if $self->{svm};
1729 my $svm;
1730 # see if we have it in our config, first:
1731 eval {
1732 my $section = "svn-remote.$self->{repo_id}";
1733 $svm = {
1734 source => tmp_config('--get', "$section.svm-source"),
1735 uuid => tmp_config('--get', "$section.svm-uuid"),
1736 replace => tmp_config('--get', "$section.svm-replace"),
1737 }
1738 };
1739 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1740 $self->{svm} = $svm;
1741 }
1742 $self->{svm};
1743}
1744sub _set_svm_vars {
1746 my ($self, $ra) = @_;
1747 return $ra if $self->svm;
1748 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1750 "(svm:source, svm:uuid) ",
1751 "from the following URLs:\n" );
1752 sub read_svm_props {
1753 my ($self, $ra, $path, $r) = @_;
1754 my $props = ($ra->get_dir($path, $r))[2];
1755 my $src = $props->{'svm:source'};
1756 my $uuid = $props->{'svm:uuid'};
1757 return undef if (!$src || !$uuid);
1758 chomp($src, $uuid);
1760 $uuid =~ m{^[0-9a-f\-]{30,}$}
1762 or die "doesn't look right - svm:uuid is '$uuid'\n";
1763 # the '!' is used to mark the repos_root!/relative/path
1765 $src =~ s{/?!/?}{/};
1766 $src =~ s{/+$}{}; # no trailing slashes please
1767 # username is of no interest
1768 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1769 my $replace = $ra->{url};
1771 $replace .= "/$path" if length $path;
1772 my $section = "svn-remote.$self->{repo_id}";
1774 tmp_config("$section.svm-source", $src);
1775 tmp_config("$section.svm-replace", $replace);
1776 tmp_config("$section.svm-uuid", $uuid);
1777 $self->{svm} = {
1778 source => $src,
1779 uuid => $uuid,
1780 replace => $replace
1781 };
1782 }
1783 my $r = $ra->get_latest_revnum;
1785 my $path = $self->{path};
1786 my %tried;
1787 while (length $path) {
1788 unless ($tried{"$self->{url}/$path"}) {
1789 return $ra if $self->read_svm_props($ra, $path, $r);
1790 $tried{"$self->{url}/$path"} = 1;
1791 }
1792 $path =~ s#/?[^/]+$##;
1793 }
1794 die "Path: '$path' should be ''\n" if $path ne '';
1795 return $ra if $self->read_svm_props($ra, $path, $r);
1796 $tried{"$self->{url}/$path"} = 1;
1797 if ($ra->{repos_root} eq $self->{url}) {
1799 die @err, (map { " $_\n" } keys %tried), "\n";
1800 }
1801 # nope, make sure we're connected to the repository root:
1803 my $ok;
1804 my @tried_b;
1805 $path = $ra->{svn_path};
1806 $ra = Git::SVN::Ra->new($ra->{repos_root});
1807 while (length $path) {
1808 unless ($tried{"$ra->{url}/$path"}) {
1809 $ok = $self->read_svm_props($ra, $path, $r);
1810 last if $ok;
1811 $tried{"$ra->{url}/$path"} = 1;
1812 }
1813 $path =~ s#/?[^/]+$##;
1814 }
1815 die "Path: '$path' should be ''\n" if $path ne '';
1816 $ok ||= $self->read_svm_props($ra, $path, $r);
1817 $tried{"$ra->{url}/$path"} = 1;
1818 if (!$ok) {
1819 die @err, (map { " $_\n" } keys %tried), "\n";
1820 }
1821 Git::SVN::Ra->new($self->{url});
1822}
1823sub svnsync {
1825 my ($self) = @_;
1826 return $self->{svnsync} if $self->{svnsync};
1827 if ($self->no_metadata) {
1829 die "Can't have both 'noMetadata' and ",
1830 "'useSvnsyncProps' options set!\n";
1831 }
1832 if ($self->rewrite_root) {
1833 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1834 "options set!\n";
1835 }
1836 my $svnsync;
1838 # see if we have it in our config, first:
1839 eval {
1840 my $section = "svn-remote.$self->{repo_id}";
1841 my $url = tmp_config('--get', "$section.svnsync-url");
1843 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1844 die "doesn't look right - svn:sync-from-url is '$url'\n";
1845 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
1847 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1848 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1849 $svnsync = { url => $url, uuid => $uuid }
1851 };
1852 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1853 return $self->{svnsync} = $svnsync;
1854 }
1855 my $err = "useSvnsyncProps set, but failed to read " .
1857 "svnsync property: svn:sync-from-";
1858 my $rp = $self->ra->rev_proplist(0);
1859 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1861 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1862 die "doesn't look right - svn:sync-from-url is '$url'\n";
1863 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1865 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1866 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1867 my $section = "svn-remote.$self->{repo_id}";
1869 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1870 tmp_config('--add', "$section.svnsync-url", $url);
1871 return $self->{svnsync} = { url => $url, uuid => $uuid };
1872}
1873# this allows us to memoize our SVN::Ra UUID locally and avoid a
1875# remote lookup (useful for 'git svn log').
1876sub ra_uuid {
1877 my ($self) = @_;
1878 unless ($self->{ra_uuid}) {
1879 my $key = "svn-remote.$self->{repo_id}.uuid";
1880 my $uuid = eval { tmp_config('--get', $key) };
1881 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1882 $self->{ra_uuid} = $uuid;
1883 } else {
1884 die "ra_uuid called without URL\n" unless $self->{url};
1885 $self->{ra_uuid} = $self->ra->get_uuid;
1886 tmp_config('--add', $key, $self->{ra_uuid});
1887 }
1888 }
1889 $self->{ra_uuid};
1890}
1891sub _set_repos_root {
1893 my ($self, $repos_root) = @_;
1894 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1895 $repos_root ||= $self->ra->{repos_root};
1896 tmp_config($k, $repos_root);
1897 $repos_root;
1898}
1899sub repos_root {
1901 my ($self) = @_;
1902 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1903 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
1904}
1905sub ra {
1907 my ($self) = shift;
1908 my $ra = Git::SVN::Ra->new($self->{url});
1909 $self->_set_repos_root($ra->{repos_root});
1910 if ($self->use_svm_props && !$self->{svm}) {
1911 if ($self->no_metadata) {
1912 die "Can't have both 'noMetadata' and ",
1913 "'useSvmProps' options set!\n";
1914 } elsif ($self->use_svnsync_props) {
1915 die "Can't have both 'useSvnsyncProps' and ",
1916 "'useSvmProps' options set!\n";
1917 }
1918 $ra = $self->_set_svm_vars($ra);
1919 $self->{-want_revprops} = 1;
1920 }
1921 $ra;
1922}
1923sub rel_path {
1925 my ($self) = @_;
1926 my $repos_root = $self->ra->{repos_root};
1927 return $self->{path} if ($self->{url} eq $repos_root);
1928 my $url = $self->{url} .
1929 (length $self->{path} ? "/$self->{path}" : $self->{path});
1930 $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
1931 $url;
1932}
1933# prop_walk(PATH, REV, SUB)
1935# -------------------------
1936# Recursively traverse PATH at revision REV and invoke SUB for each
1937# directory that contains a SVN property. SUB will be invoked as
1938# follows: &SUB(gs, path, props); where `gs' is this instance of
1939# Git::SVN, `path' the path to the directory where the properties
1940# `props' were found. The `path' will be relative to point of checkout,
1941# that is, if url://repo/trunk is the current Git branch, and that
1942# directory contains a sub-directory `d', SUB will be invoked with `/d/'
1943# as `path' (note the trailing `/').
1944sub prop_walk {
1945 my ($self, $path, $rev, $sub) = @_;
1946 $path =~ s#^/##;
1948 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
1949 $path =~ s#^/*#/#g;
1950 my $p = $path;
1951 # Strip the irrelevant part of the path.
1952 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
1953 # Ensure the path is terminated by a `/'.
1954 $p =~ s#/*$#/#;
1955 # The properties contain all the internal SVN stuff nobody
1957 # (usually) cares about.
1958 my $interesting_props = 0;
1959 foreach (keys %{$props}) {
1960 # If it doesn't start with `svn:', it must be a
1961 # user-defined property.
1962 ++$interesting_props and next if $_ !~ /^svn:/;
1963 # FIXME: Fragile, if SVN adds new public properties,
1964 # this needs to be updated.
1965 ++$interesting_props if /^svn:(?:ignore|keywords|executable
1966 |eol-style|mime-type
1967 |externals|needs-lock)$/x;
1968 }
1969 &$sub($self, $p, $props) if $interesting_props;
1970 foreach (sort keys %$dirent) {
1972 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
1973 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
1974 }
1975}
1976sub last_rev { ($_[0]->last_rev_commit)[0] }
1978sub last_commit { ($_[0]->last_rev_commit)[1] }
1979# returns the newest SVN revision number and newest commit SHA1
1981sub last_rev_commit {
1982 my ($self) = @_;
1983 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1984 return ($self->{last_rev}, $self->{last_commit});
1985 }
1986 my $c = ::verify_ref($self->refname.'^0');
1987 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1988 my $rev = (::cmt_metadata($c))[1];
1989 if (defined $rev) {
1990 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1991 return ($rev, $c);
1992 }
1993 }
1994 my $map_path = $self->map_path;
1995 unless (-e $map_path) {
1996 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
1997 return (undef, undef);
1998 }
1999 my ($rev, $commit) = $self->rev_map_max(1);
2000 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
2001 return ($rev, $commit);
2002}
2003sub get_fetch_range {
2005 my ($self, $min, $max) = @_;
2006 $max ||= $self->ra->get_latest_revnum;
2007 $min ||= $self->rev_map_max;
2008 (++$min, $max);
2009}
2010sub tmp_config {
2012 my (@args) = @_;
2013 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
2014 my $config = "$ENV{GIT_DIR}/svn/.metadata";
2015 if (! -f $config && -f $old_def_config) {
2016 rename $old_def_config, $config or
2017 die "Failed rename $old_def_config => $config: $!\n";
2018 }
2019 my $old_config = $ENV{GIT_CONFIG};
2020 $ENV{GIT_CONFIG} = $config;
2021 $@ = undef;
2022 my @ret = eval {
2023 unless (-f $config) {
2024 mkfile($config);
2025 open my $fh, '>', $config or
2026 die "Can't open $config: $!\n";
2027 print $fh "; This file is used internally by ",
2028 "git-svn\n" or die
2029 "Couldn't write to $config: $!\n";
2030 print $fh "; You should not have to edit it\n" or
2031 die "Couldn't write to $config: $!\n";
2032 close $fh or die "Couldn't close $config: $!\n";
2033 }
2034 command('config', @args);
2035 };
2036 my $err = $@;
2037 if (defined $old_config) {
2038 $ENV{GIT_CONFIG} = $old_config;
2039 } else {
2040 delete $ENV{GIT_CONFIG};
2041 }
2042 die $err if $err;
2043 wantarray ? @ret : $ret[0];
2044}
2045sub tmp_index_do {
2047 my ($self, $sub) = @_;
2048 my $old_index = $ENV{GIT_INDEX_FILE};
2049 $ENV{GIT_INDEX_FILE} = $self->{index};
2050 $@ = undef;
2051 my @ret = eval {
2052 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2053 mkpath([$dir]) unless -d $dir;
2054 &$sub;
2055 };
2056 my $err = $@;
2057 if (defined $old_index) {
2058 $ENV{GIT_INDEX_FILE} = $old_index;
2059 } else {
2060 delete $ENV{GIT_INDEX_FILE};
2061 }
2062 die $err if $err;
2063 wantarray ? @ret : $ret[0];
2064}
2065sub assert_index_clean {
2067 my ($self, $treeish) = @_;
2068 $self->tmp_index_do(sub {
2070 command_noisy('read-tree', $treeish) unless -e $self->{index};
2071 my $x = command_oneline('write-tree');
2072 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2073 /^tree ($::sha1)/mo);
2074 return if $y eq $x;
2075 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2077 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2078 command_noisy('read-tree', $treeish);
2079 $x = command_oneline('write-tree');
2080 if ($y ne $x) {
2081 ::fatal "trees ($treeish) $y != $x\n",
2082 "Something is seriously wrong...";
2083 }
2084 });
2085}
2086sub get_commit_parents {
2088 my ($self, $log_entry) = @_;
2089 my (%seen, @ret, @tmp);
2090 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2091 if (my $ip = $self->{inject_parents}) {
2092 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2093 push @tmp, $commit;
2094 }
2095 }
2096 if (my $cur = ::verify_ref($self->refname.'^0')) {
2097 push @tmp, $cur;
2098 }
2099 if (my $ipd = $self->{inject_parents_dcommit}) {
2100 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2101 push @tmp, @$commit;
2102 }
2103 }
2104 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2105 while (my $p = shift @tmp) {
2106 next if $seen{$p};
2107 $seen{$p} = 1;
2108 push @ret, $p;
2109 # MAXPARENT is defined to 16 in commit-tree.c:
2110 last if @ret >= 16;
2111 }
2112 if (@tmp) {
2113 die "r$log_entry->{revision}: No room for parents:\n\t",
2114 join("\n\t", @tmp), "\n";
2115 }
2116 @ret;
2117}
2118sub rewrite_root {
2120 my ($self) = @_;
2121 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2122 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2123 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2124 if ($rwr) {
2125 $rwr =~ s#/+$##;
2126 if ($rwr !~ m#^[a-z\+]+://#) {
2127 die "$rwr is not a valid URL (key: $k)\n";
2128 }
2129 }
2130 $self->{-rewrite_root} = $rwr;
2131}
2132sub metadata_url {
2134 my ($self) = @_;
2135 ($self->rewrite_root || $self->{url}) .
2136 (length $self->{path} ? '/' . $self->{path} : '');
2137}
2138sub full_url {
2140 my ($self) = @_;
2141 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2142}
2143sub set_commit_header_env {
2146 my ($log_entry) = @_;
2147 my %env;
2148 foreach my $ned (qw/NAME EMAIL DATE/) {
2149 foreach my $ac (qw/AUTHOR COMMITTER/) {
2150 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2151 }
2152 }
2153 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2155 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2156 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2157 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2159 ? $log_entry->{commit_name}
2160 : $log_entry->{name};
2161 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2162 ? $log_entry->{commit_email}
2163 : $log_entry->{email};
2164 \%env;
2165}
2166sub restore_commit_header_env {
2168 my ($env) = @_;
2169 foreach my $ned (qw/NAME EMAIL DATE/) {
2170 foreach my $ac (qw/AUTHOR COMMITTER/) {
2171 my $k = "GIT_${ac}_${ned}";
2172 if (defined $env->{$k}) {
2173 $ENV{$k} = $env->{$k};
2174 } else {
2175 delete $ENV{$k};
2176 }
2177 }
2178 }
2179}
2180sub gc {
2182 command_noisy('gc', '--auto');
2183};
2184sub do_git_commit {
2186 my ($self, $log_entry) = @_;
2187 my $lr = $self->last_rev;
2188 if (defined $lr && $lr >= $log_entry->{revision}) {
2189 die "Last fetched revision of ", $self->refname,
2190 " was r$lr, but we are about to fetch: ",
2191 "r$log_entry->{revision}!\n";
2192 }
2193 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2194 croak "$log_entry->{revision} = $c already exists! ",
2195 "Why are we refetching it?\n";
2196 }
2197 my $old_env = set_commit_header_env($log_entry);
2198 my $tree = $log_entry->{tree};
2199 if (!defined $tree) {
2200 $tree = $self->tmp_index_do(sub {
2201 command_oneline('write-tree') });
2202 }
2203 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2204 my @exec = ('git-commit-tree', $tree);
2206 foreach ($self->get_commit_parents($log_entry)) {
2207 push @exec, '-p', $_;
2208 }
2209 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2210 or croak $!;
2211 print $msg_fh $log_entry->{log} or croak $!;
2212 restore_commit_header_env($old_env);
2213 unless ($self->no_metadata) {
2214 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2215 or croak $!;
2216 }
2217 $msg_fh->flush == 0 or croak $!;
2218 close $msg_fh or croak $!;
2219 chomp(my $commit = do { local $/; <$out_fh> });
2220 close $out_fh or croak $!;
2221 waitpid $pid, 0;
2222 croak $? if $?;
2223 if ($commit !~ /^$::sha1$/o) {
2224 die "Failed to commit, invalid sha1: $commit\n";
2225 }
2226 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2228 $self->{last_rev} = $log_entry->{revision};
2230 $self->{last_commit} = $commit;
2231 print "r$log_entry->{revision}";
2232 if (defined $log_entry->{svm_revision}) {
2233 print " (\@$log_entry->{svm_revision})";
2234 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2235 0, $self->svm_uuid);
2236 }
2237 print " = $commit ($self->{ref_id})\n";
2238 if (--$_gc_nr == 0) {
2239 $_gc_nr = $_gc_period;
2240 gc();
2241 }
2242 return $commit;
2243}
2244sub match_paths {
2246 my ($self, $paths, $r) = @_;
2247 return 1 if $self->{path} eq '';
2248 if (my $path = $paths->{"/$self->{path}"}) {
2249 return ($path->{action} eq 'D') ? 0 : 1;
2250 }
2251 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2252 if (grep /$self->{path_regex}/, keys %$paths) {
2253 return 1;
2254 }
2255 my $c = '';
2256 foreach (split m#/#, $self->{path}) {
2257 $c .= "/$_";
2258 next unless ($paths->{$c} &&
2259 ($paths->{$c}->{action} =~ /^[AR]$/));
2260 if ($self->ra->check_path($self->{path}, $r) ==
2261 $SVN::Node::dir) {
2262 return 1;
2263 }
2264 }
2265 return 0;
2266}
2267sub find_parent_branch {
2269 my ($self, $paths, $rev) = @_;
2270 return undef unless $self->follow_parent;
2271 unless (defined $paths) {
2272 my $err_handler = $SVN::Error::handler;
2273 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2274 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
2275 $paths =
2276 Git::SVN::Ra::dup_changed_paths($_[0]) });
2277 $SVN::Error::handler = $err_handler;
2278 }
2279 return undef unless defined $paths;
2280 # look for a parent from another branch:
2282 my @b_path_components = split m#/#, $self->rel_path;
2283 my @a_path_components;
2284 my $i;
2285 while (@b_path_components) {
2286 $i = $paths->{'/'.join('/', @b_path_components)};
2287 last if $i && defined $i->{copyfrom_path};
2288 unshift(@a_path_components, pop(@b_path_components));
2289 }
2290 return undef unless defined $i && defined $i->{copyfrom_path};
2291 my $branch_from = $i->{copyfrom_path};
2292 if (@a_path_components) {
2293 print STDERR "branch_from: $branch_from => ";
2294 $branch_from .= '/'.join('/', @a_path_components);
2295 print STDERR $branch_from, "\n";
2296 }
2297 my $r = $i->{copyfrom_rev};
2298 my $repos_root = $self->ra->{repos_root};
2299 my $url = $self->ra->{url};
2300 my $new_url = $repos_root . $branch_from;
2301 print STDERR "Found possible branch point: ",
2302 "$new_url => ", $self->full_url, ", $r\n";
2303 $branch_from =~ s#^/##;
2304 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
2305 unless ($gs) {
2306 my $ref_id = $self->{ref_id};
2307 $ref_id =~ s/\@\d+$//;
2308 $ref_id .= "\@$r";
2309 # just grow a tail if we're not unique enough :x
2310 $ref_id .= '-' while find_ref($ref_id);
2311 print STDERR "Initializing parent: $ref_id\n";
2312 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2313 if ($u =~ s#^\Q$url\E(/|$)##) {
2314 $p = $u;
2315 $u = $url;
2316 $repo_id = $self->{repo_id};
2317 }
2318 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2319 }
2320 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2321 if (!defined $r0 || !defined $parent) {
2322 my ($base, $head) = parse_revision_argument(0, $r);
2323 if ($base <= $r) {
2324 $gs->fetch($base, $r);
2325 }
2326 ($r0, $parent) = $gs->last_rev_commit;
2327 }
2328 if (defined $r0 && defined $parent) {
2329 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
2330 my $ed;
2331 if ($self->ra->can_do_switch) {
2332 $self->assert_index_clean($parent);
2333 print STDERR "Following parent with do_switch\n";
2334 # do_switch works with svn/trunk >= r22312, but that
2335 # is not included with SVN 1.4.3 (the latest version
2336 # at the moment), so we can't rely on it
2337 $self->{last_commit} = $parent;
2338 $ed = SVN::Git::Fetcher->new($self);
2339 $gs->ra->gs_do_switch($r0, $rev, $gs,
2340 $self->full_url, $ed)
2341 or die "SVN connection failed somewhere...\n";
2342 } elsif ($self->ra->trees_match($new_url, $r0,
2343 $self->full_url, $rev)) {
2344 print STDERR "Trees match:\n",
2345 " $new_url\@$r0\n",
2346 " ${\$self->full_url}\@$rev\n",
2347 "Following parent with no changes\n";
2348 $self->tmp_index_do(sub {
2349 command_noisy('read-tree', $parent);
2350 });
2351 $self->{last_commit} = $parent;
2352 } else {
2353 print STDERR "Following parent with do_update\n";
2354 $ed = SVN::Git::Fetcher->new($self);
2355 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2356 or die "SVN connection failed somewhere...\n";
2357 }
2358 print STDERR "Successfully followed parent\n";
2359 return $self->make_log_entry($rev, [$parent], $ed);
2360 }
2361 return undef;
2362}
2363sub do_fetch {
2365 my ($self, $paths, $rev) = @_;
2366 my $ed;
2367 my ($last_rev, @parents);
2368 if (my $lc = $self->last_commit) {
2369 # we can have a branch that was deleted, then re-added
2370 # under the same name but copied from another path, in
2371 # which case we'll have multiple parents (we don't
2372 # want to break the original ref, nor lose copypath info):
2373 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2374 push @{$log_entry->{parents}}, $lc;
2375 return $log_entry;
2376 }
2377 $ed = SVN::Git::Fetcher->new($self);
2378 $last_rev = $self->{last_rev};
2379 $ed->{c} = $lc;
2380 @parents = ($lc);
2381 } else {
2382 $last_rev = $rev;
2383 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2384 return $log_entry;
2385 }
2386 $ed = SVN::Git::Fetcher->new($self);
2387 }
2388 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2389 die "SVN connection failed somewhere...\n";
2390 }
2391 $self->make_log_entry($rev, \@parents, $ed);
2392}
2393sub get_untracked {
2395 my ($self, $ed) = @_;
2396 my @out;
2397 my $h = $ed->{empty};
2398 foreach (sort keys %$h) {
2399 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2400 push @out, " $act: " . uri_encode($_);
2401 warn "W: $act: $_\n";
2402 }
2403 foreach my $t (qw/dir_prop file_prop/) {
2404 $h = $ed->{$t} or next;
2405 foreach my $path (sort keys %$h) {
2406 my $ppath = $path eq '' ? '.' : $path;
2407 foreach my $prop (sort keys %{$h->{$path}}) {
2408 next if $SKIP_PROP{$prop};
2409 my $v = $h->{$path}->{$prop};
2410 my $t_ppath_prop = "$t: " .
2411 uri_encode($ppath) . ' ' .
2412 uri_encode($prop);
2413 if (defined $v) {
2414 push @out, " +$t_ppath_prop " .
2415 uri_encode($v);
2416 } else {
2417 push @out, " -$t_ppath_prop";
2418 }
2419 }
2420 }
2421 }
2422 foreach my $t (qw/absent_file absent_directory/) {
2423 $h = $ed->{$t} or next;
2424 foreach my $parent (sort keys %$h) {
2425 foreach my $path (sort @{$h->{$parent}}) {
2426 push @out, " $t: " .
2427 uri_encode("$parent/$path");
2428 warn "W: $t: $parent/$path ",
2429 "Insufficient permissions?\n";
2430 }
2431 }
2432 }
2433 \@out;
2434}
2435sub parse_svn_date {
2437 my $date = shift || return '+0000 1970-01-01 00:00:00';
2438 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2439 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
2440 croak "Unable to parse date: $date\n";
2441 "+0000 $Y-$m-$d $H:$M:$S";
2442}
2443sub check_author {
2445 my ($author) = @_;
2446 if (!defined $author || length $author == 0) {
2447 $author = '(no author)';
2448 } elsif (defined $::_authors && ! defined $::users{$author}) {
2449 die "Author: $author not defined in $::_authors file\n";
2450 }
2451 $author;
2452}
2453sub make_log_entry {
2455 my ($self, $rev, $parents, $ed) = @_;
2456 my $untracked = $self->get_untracked($ed);
2457 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
2459 print $un "r$rev\n" or croak $!;
2460 print $un $_, "\n" foreach @$untracked;
2461 my %log_entry = ( parents => $parents || [], revision => $rev,
2462 log => '');
2463 my $headrev;
2465 my $logged = delete $self->{logged_rev_props};
2466 if (!$logged || $self->{-want_revprops}) {
2467 my $rp = $self->ra->rev_proplist($rev);
2468 foreach (sort keys %$rp) {
2469 my $v = $rp->{$_};
2470 if (/^svn:(author|date|log)$/) {
2471 $log_entry{$1} = $v;
2472 } elsif ($_ eq 'svm:headrev') {
2473 $headrev = $v;
2474 } else {
2475 print $un " rev_prop: ", uri_encode($_), ' ',
2476 uri_encode($v), "\n";
2477 }
2478 }
2479 } else {
2480 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
2481 }
2482 close $un or croak $!;
2483 $log_entry{date} = parse_svn_date($log_entry{date});
2485 $log_entry{log} .= "\n";
2486 my $author = $log_entry{author} = check_author($log_entry{author});
2487 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
2488 : ($author, undef);
2489 my ($commit_name, $commit_email) = ($name, $email);
2491 if ($_use_log_author) {
2492 my $name_field;
2493 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
2494 $name_field = $1;
2495 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
2496 $name_field = $1;
2497 }
2498 if (!defined $name_field) {
2499 if (!defined $email) {
2500 $email = $name;
2501 }
2502 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
2503 ($name, $email) = ($1, $2);
2504 } elsif ($name_field =~ /(.*)@/) {
2505 ($name, $email) = ($1, $name_field);
2506 } else {
2507 ($name, $email) = ($name_field, $name_field);
2508 }
2509 }
2510 if (defined $headrev && $self->use_svm_props) {
2511 if ($self->rewrite_root) {
2512 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
2513 "options set!\n";
2514 }
2515 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
2516 # we don't want "SVM: initializing mirror for junk" ...
2517 return undef if $r == 0;
2518 my $svm = $self->svm;
2519 if ($uuid ne $svm->{uuid}) {
2520 die "UUID mismatch on SVM path:\n",
2521 "expected: $svm->{uuid}\n",
2522 " got: $uuid\n";
2523 }
2524 my $full_url = $self->full_url;
2525 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
2526 die "Failed to replace '$svm->{replace}' with ",
2527 "'$svm->{source}' in $full_url\n";
2528 # throw away username for storing in records
2529 remove_username($full_url);
2530 $log_entry{metadata} = "$full_url\@$r $uuid";
2531 $log_entry{svm_revision} = $r;
2532 $email ||= "$author\@$uuid";
2533 $commit_email ||= "$author\@$uuid";
2534 } elsif ($self->use_svnsync_props) {
2535 my $full_url = $self->svnsync->{url};
2536 $full_url .= "/$self->{path}" if length $self->{path};
2537 remove_username($full_url);
2538 my $uuid = $self->svnsync->{uuid};
2539 $log_entry{metadata} = "$full_url\@$rev $uuid";
2540 $email ||= "$author\@$uuid";
2541 $commit_email ||= "$author\@$uuid";
2542 } else {
2543 my $url = $self->metadata_url;
2544 remove_username($url);
2545 $log_entry{metadata} = "$url\@$rev " .
2546 $self->ra->get_uuid;
2547 $email ||= "$author\@" . $self->ra->get_uuid;
2548 $commit_email ||= "$author\@" . $self->ra->get_uuid;
2549 }
2550 $log_entry{name} = $name;
2551 $log_entry{email} = $email;
2552 $log_entry{commit_name} = $commit_name;
2553 $log_entry{commit_email} = $commit_email;
2554 \%log_entry;
2555}
2556sub fetch {
2558 my ($self, $min_rev, $max_rev, @parents) = @_;
2559 my ($last_rev, $last_commit) = $self->last_rev_commit;
2560 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
2561 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
2562}
2563sub set_tree_cb {
2565 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2566 $self->{inject_parents} = { $rev => $tree };
2567 $self->fetch(undef, undef);
2568}
2569sub set_tree {
2571 my ($self, $tree) = (shift, shift);
2572 my $log_entry = ::get_commit_entry($tree);
2573 unless ($self->{last_rev}) {
2574 ::fatal("Must have an existing revision to commit");
2575 }
2576 my %ed_opts = ( r => $self->{last_rev},
2577 log => $log_entry->{log},
2578 ra => $self->ra,
2579 tree_a => $self->{last_commit},
2580 tree_b => $tree,
2581 editor_cb => sub {
2582 $self->set_tree_cb($log_entry, $tree, @_) },
2583 svn_path => $self->{path} );
2584 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
2585 print "No changes\nr$self->{last_rev} = $tree\n";
2586 }
2587}
2588sub rebuild_from_rev_db {
2590 my ($self, $path) = @_;
2591 my $r = -1;
2592 open my $fh, '<', $path or croak "open: $!";
2593 binmode $fh or croak "binmode: $!";
2594 while (<$fh>) {
2595 length($_) == 41 or croak "inconsistent size in ($_) != 41";
2596 chomp($_);
2597 ++$r;
2598 next if $_ eq ('0' x 40);
2599 $self->rev_map_set($r, $_);
2600 print "r$r = $_\n";
2601 }
2602 close $fh or croak "close: $!";
2603 unlink $path or croak "unlink: $!";
2604}
2605sub rebuild {
2607 my ($self) = @_;
2608 my $map_path = $self->map_path;
2609 return if (-e $map_path && ! -z $map_path);
2610 return unless ::verify_ref($self->refname.'^0');
2611 if ($self->use_svm_props || $self->no_metadata) {
2612 my $rev_db = $self->rev_db_path;
2613 $self->rebuild_from_rev_db($rev_db);
2614 if ($self->use_svm_props) {
2615 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
2616 $self->rebuild_from_rev_db($svm_rev_db);
2617 }
2618 $self->unlink_rev_db_symlink;
2619 return;
2620 }
2621 print "Rebuilding $map_path ...\n";
2622 my ($log, $ctx) =
2623 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
2624 $self->refname, '--');
2625 my $metadata_url = $self->metadata_url;
2626 remove_username($metadata_url);
2627 my $svn_uuid = $self->ra_uuid;
2628 my $c;
2629 while (<$log>) {
2630 if ( m{^commit ($::sha1)$} ) {
2631 $c = $1;
2632 next;
2633 }
2634 next unless s{^\s*(git-svn-id:)}{$1};
2635 my ($url, $rev, $uuid) = ::extract_metadata($_);
2636 remove_username($url);
2637 # ignore merges (from set-tree)
2639 next if (!defined $rev || !$uuid);
2640 # if we merged or otherwise started elsewhere, this is
2642 # how we break out of it
2643 if (($uuid ne $svn_uuid) ||
2644 ($metadata_url && $url && ($url ne $metadata_url))) {
2645 next;
2646 }
2647 $self->rev_map_set($rev, $c);
2649 print "r$rev = $c\n";
2650 }
2651 command_close_pipe($log, $ctx);
2652 print "Done rebuilding $map_path\n";
2653 my $rev_db_path = $self->rev_db_path;
2654 if (-f $self->rev_db_path) {
2655 unlink $self->rev_db_path or croak "unlink: $!";
2656 }
2657 $self->unlink_rev_db_symlink;
2658}
2659# rev_map:
2661# Tie::File seems to be prone to offset errors if revisions get sparse,
2662# it's not that fast, either. Tie::File is also not in Perl 5.6. So
2663# one of my favorite modules is out :< Next up would be one of the DBM
2664# modules, but I'm not sure which is most portable...
2665#
2666# This is the replacement for the rev_db format, which was too big
2667# and inefficient for large repositories with a lot of sparse history
2668# (mainly tags)
2669#
2670# The format is this:
2671# - 24 bytes for every record,
2672# * 4 bytes for the integer representing an SVN revision number
2673# * 20 bytes representing the sha1 of a git commit
2674# - No empty padding records like the old format
2675# (except the last record, which can be overwritten)
2676# - new records are written append-only since SVN revision numbers
2677# increase monotonically
2678# - lookups on SVN revision number are done via a binary search
2679# - Piping the file to xxd -c24 is a good way of dumping it for
2680# viewing or editing (piped back through xxd -r), should the need
2681# ever arise.
2682# - The last record can be padding revision with an all-zero sha1
2683# This is used to optimize fetch performance when using multiple
2684# "fetch" directives in .git/config
2685#
2686# These files are disposable unless noMetadata or useSvmProps is set
2687sub _rev_map_set {
2689 my ($fh, $rev, $commit) = @_;
2690 binmode $fh or croak "binmode: $!";
2692 my $size = (stat($fh))[7];
2693 ($size % 24) == 0 or croak "inconsistent size: $size";
2694 my $wr_offset = 0;
2696 if ($size > 0) {
2697 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2698 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
2699 $read == 24 or croak "read only $read bytes (!= 24)";
2700 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
2701 if ($last_commit eq ('0' x40)) {
2702 if ($size >= 48) {
2703 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2704 $read = sysread($fh, $buf, 24) or
2705 croak "read: $!";
2706 $read == 24 or
2707 croak "read only $read bytes (!= 24)";
2708 ($last_rev, $last_commit) =
2709 unpack(rev_map_fmt, $buf);
2710 if ($last_commit eq ('0' x40)) {
2711 croak "inconsistent .rev_map\n";
2712 }
2713 }
2714 if ($last_rev >= $rev) {
2715 croak "last_rev is higher!: $last_rev >= $rev";
2716 }
2717 $wr_offset = -24;
2718 }
2719 }
2720 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
2721 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
2722 croak "write: $!";
2723}
2724sub mkfile {
2726 my ($path) = @_;
2727 unless (-e $path) {
2728 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2729 mkpath([$dir]) unless -d $dir;
2730 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2731 close $fh or die "Couldn't close (create) $path: $!\n";
2732 }
2733}
2734sub rev_map_set {
2736 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2737 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2738 my $db = $self->map_path($uuid);
2739 my $db_lock = "$db.lock";
2740 my $sig;
2741 if ($update_ref) {
2742 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2743 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
2744 }
2745 mkfile($db);
2746 $LOCKFILES{$db_lock} = 1;
2748 my $sync;
2749 # both of these options make our .rev_db file very, very important
2750 # and we can't afford to lose it because rebuild() won't work
2751 if ($self->use_svm_props || $self->no_metadata) {
2752 $sync = 1;
2753 copy($db, $db_lock) or die "rev_map_set(@_): ",
2754 "Failed to copy: ",
2755 "$db => $db_lock ($!)\n";
2756 } else {
2757 rename $db, $db_lock or die "rev_map_set(@_): ",
2758 "Failed to rename: ",
2759 "$db => $db_lock ($!)\n";
2760 }
2761 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
2763 or croak "Couldn't open $db_lock: $!\n";
2764 _rev_map_set($fh, $rev, $commit);
2765 if ($sync) {
2766 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2767 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2768 }
2769 close $fh or croak $!;
2770 if ($update_ref) {
2771 $_head = $self;
2772 command_noisy('update-ref', '-m', "r$rev",
2773 $self->refname, $commit);
2774 }
2775 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
2776 "$db_lock => $db ($!)\n";
2777 delete $LOCKFILES{$db_lock};
2778 if ($update_ref) {
2779 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2780 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2781 kill $sig, $$ if defined $sig;
2782 }
2783}
2784# If want_commit, this will return an array of (rev, commit) where
2786# commit _must_ be a valid commit in the archive.
2787# Otherwise, it'll return the max revision (whether or not the
2788# commit is valid or just a 0x40 placeholder).
2789sub rev_map_max {
2790 my ($self, $want_commit) = @_;
2791 $self->rebuild;
2792 my $map_path = $self->map_path;
2793 stat $map_path or return $want_commit ? (0, undef) : 0;
2794 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2795 binmode $fh or croak "binmode: $!";
2796 my $size = (stat($fh))[7];
2797 ($size % 24) == 0 or croak "inconsistent size: $size";
2798 if ($size == 0) {
2800 close $fh or croak "close: $!";
2801 return $want_commit ? (0, undef) : 0;
2802 }
2803 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2805 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2806 my ($r, $c) = unpack(rev_map_fmt, $buf);
2807 if ($want_commit && $c eq ('0' x40)) {
2808 if ($size < 48) {
2809 return $want_commit ? (0, undef) : 0;
2810 }
2811 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2812 sysread($fh, $buf, 24) == 24 or croak "read: $!";
2813 ($r, $c) = unpack(rev_map_fmt, $buf);
2814 if ($c eq ('0'x40)) {
2815 croak "Penultimate record is all-zeroes in $map_path";
2816 }
2817 }
2818 close $fh or croak "close: $!";
2819 $want_commit ? ($r, $c) : $r;
2820}
2821sub rev_map_get {
2823 my ($self, $rev, $uuid) = @_;
2824 my $map_path = $self->map_path($uuid);
2825 return undef unless -e $map_path;
2826 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2828 binmode $fh or croak "binmode: $!";
2829 my $size = (stat($fh))[7];
2830 ($size % 24) == 0 or croak "inconsistent size: $size";
2831 if ($size == 0) {
2833 close $fh or croak "close: $fh";
2834 return undef;
2835 }
2836 my ($l, $u) = (0, $size - 24);
2838 my ($r, $c, $buf);
2839 while ($l <= $u) {
2841 my $i = int(($l/24 + $u/24) / 2) * 24;
2842 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
2843 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2844 my ($r, $c) = unpack('NH40', $buf);
2845 if ($r < $rev) {
2847 $l = $i + 24;
2848 } elsif ($r > $rev) {
2849 $u = $i - 24;
2850 } else { # $r == $rev
2851 close($fh) or croak "close: $!";
2852 return $c eq ('0' x 40) ? undef : $c;
2853 }
2854 }
2855 close($fh) or croak "close: $!";
2856 undef;
2857}
2858# Finds the first svn revision that exists on (if $eq_ok is true) or
2860# before $rev for the current branch. It will not search any lower
2861# than $min_rev. Returns the git commit hash and svn revision number
2862# if found, else (undef, undef).
2863sub find_rev_before {
2864 my ($self, $rev, $eq_ok, $min_rev) = @_;
2865 --$rev unless $eq_ok;
2866 $min_rev ||= 1;
2867 while ($rev >= $min_rev) {
2868 if (my $c = $self->rev_map_get($rev)) {
2869 return ($rev, $c);
2870 }
2871 --$rev;
2872 }
2873 return (undef, undef);
2874}
2875# Finds the first svn revision that exists on (if $eq_ok is true) or
2877# after $rev for the current branch. It will not search any higher
2878# than $max_rev. Returns the git commit hash and svn revision number
2879# if found, else (undef, undef).
2880sub find_rev_after {
2881 my ($self, $rev, $eq_ok, $max_rev) = @_;
2882 ++$rev unless $eq_ok;
2883 $max_rev ||= $self->rev_map_max;
2884 while ($rev <= $max_rev) {
2885 if (my $c = $self->rev_map_get($rev)) {
2886 return ($rev, $c);
2887 }
2888 ++$rev;
2889 }
2890 return (undef, undef);
2891}
2892sub _new {
2894 my ($class, $repo_id, $ref_id, $path) = @_;
2895 unless (defined $repo_id && length $repo_id) {
2896 $repo_id = $Git::SVN::default_repo_id;
2897 }
2898 unless (defined $ref_id && length $ref_id) {
2899 $_[2] = $ref_id = $Git::SVN::default_ref_id;
2900 }
2901 $_[1] = $repo_id;
2902 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2903 $_[3] = $path = '' unless (defined $path);
2904 mkpath(["$ENV{GIT_DIR}/svn"]);
2905 bless {
2906 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2907 path => $path, config => "$ENV{GIT_DIR}/svn/config",
2908 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
2909}
2910# for read-only access of old .rev_db formats
2912sub unlink_rev_db_symlink {
2913 my ($self) = @_;
2914 my $link = $self->rev_db_path;
2915 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
2916 if (-l $link) {
2917 unlink $link or croak "unlink: $link failed!";
2918 }
2919}
2920sub rev_db_path {
2922 my ($self, $uuid) = @_;
2923 my $db_path = $self->map_path($uuid);
2924 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
2925 or croak "map_path: $db_path does not contain '/.rev_map.' !";
2926 $db_path;
2927}
2928# the new replacement for .rev_db
2930sub map_path {
2931 my ($self, $uuid) = @_;
2932 $uuid ||= $self->ra_uuid;
2933 "$self->{map_root}.$uuid";
2934}
2935sub uri_encode {
2937 my ($f) = @_;
2938 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2939 $f
2940}
2941sub remove_username {
2943 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
2944}
2945package Git::SVN::Prompt;
2947use strict;
2948use warnings;
2949require SVN::Core;
2950use vars qw/$_no_auth_cache $_username/;
2951sub simple {
2953 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2954 $may_save = undef if $_no_auth_cache;
2955 $default_username = $_username if defined $_username;
2956 if (defined $default_username && length $default_username) {
2957 if (defined $realm && length $realm) {
2958 print STDERR "Authentication realm: $realm\n";
2959 STDERR->flush;
2960 }
2961 $cred->username($default_username);
2962 } else {
2963 username($cred, $realm, $may_save, $pool);
2964 }
2965 $cred->password(_read_password("Password for '" .
2966 $cred->username . "': ", $realm));
2967 $cred->may_save($may_save);
2968 $SVN::_Core::SVN_NO_ERROR;
2969}
2970sub ssl_server_trust {
2972 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2973 $may_save = undef if $_no_auth_cache;
2974 print STDERR "Error validating server certificate for '$realm':\n";
2975 {
2976 no warnings 'once';
2977 # All variables SVN::Auth::SSL::* are used only once,
2978 # so we're shutting up Perl warnings about this.
2979 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2980 print STDERR " - The certificate is not issued ",
2981 "by a trusted authority. Use the\n",
2982 " fingerprint to validate ",
2983 "the certificate manually!\n";
2984 }
2985 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2986 print STDERR " - The certificate hostname ",
2987 "does not match.\n";
2988 }
2989 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2990 print STDERR " - The certificate is not yet valid.\n";
2991 }
2992 if ($failures & $SVN::Auth::SSL::EXPIRED) {
2993 print STDERR " - The certificate has expired.\n";
2994 }
2995 if ($failures & $SVN::Auth::SSL::OTHER) {
2996 print STDERR " - The certificate has ",
2997 "an unknown error.\n";
2998 }
2999 } # no warnings 'once'
3000 printf STDERR
3001 "Certificate information:\n".
3002 " - Hostname: %s\n".
3003 " - Valid: from %s until %s\n".
3004 " - Issuer: %s\n".
3005 " - Fingerprint: %s\n",
3006 map $cert_info->$_, qw(hostname valid_from valid_until
3007 issuer_dname fingerprint);
3008 my $choice;
3009prompt:
3010 print STDERR $may_save ?
3011 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
3012 "(R)eject or accept (t)emporarily? ";
3013 STDERR->flush;
3014 $choice = lc(substr(<STDIN> || 'R', 0, 1));
3015 if ($choice =~ /^t$/i) {
3016 $cred->may_save(undef);
3017 } elsif ($choice =~ /^r$/i) {
3018 return -1;
3019 } elsif ($may_save && $choice =~ /^p$/i) {
3020 $cred->may_save($may_save);
3021 } else {
3022 goto prompt;
3023 }
3024 $cred->accepted_failures($failures);
3025 $SVN::_Core::SVN_NO_ERROR;
3026}
3027sub ssl_client_cert {
3029 my ($cred, $realm, $may_save, $pool) = @_;
3030 $may_save = undef if $_no_auth_cache;
3031 print STDERR "Client certificate filename: ";
3032 STDERR->flush;
3033 chomp(my $filename = <STDIN>);
3034 $cred->cert_file($filename);
3035 $cred->may_save($may_save);
3036 $SVN::_Core::SVN_NO_ERROR;
3037}
3038sub ssl_client_cert_pw {
3040 my ($cred, $realm, $may_save, $pool) = @_;
3041 $may_save = undef if $_no_auth_cache;
3042 $cred->password(_read_password("Password: ", $realm));
3043 $cred->may_save($may_save);
3044 $SVN::_Core::SVN_NO_ERROR;
3045}
3046sub username {
3048 my ($cred, $realm, $may_save, $pool) = @_;
3049 $may_save = undef if $_no_auth_cache;
3050 if (defined $realm && length $realm) {
3051 print STDERR "Authentication realm: $realm\n";
3052 }
3053 my $username;
3054 if (defined $_username) {
3055 $username = $_username;
3056 } else {
3057 print STDERR "Username: ";
3058 STDERR->flush;
3059 chomp($username = <STDIN>);
3060 }
3061 $cred->username($username);
3062 $cred->may_save($may_save);
3063 $SVN::_Core::SVN_NO_ERROR;
3064}
3065sub _read_password {
3067 my ($prompt, $realm) = @_;
3068 print STDERR $prompt;
3069 STDERR->flush;
3070 require Term::ReadKey;
3071 Term::ReadKey::ReadMode('noecho');
3072 my $password = '';
3073 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3074 last if $key =~ /[\012\015]/; # \n\r
3075 $password .= $key;
3076 }
3077 Term::ReadKey::ReadMode('restore');
3078 print STDERR "\n";
3079 STDERR->flush;
3080 $password;
3081}
3082package SVN::Git::Fetcher;
3084use vars qw/@ISA/;
3085use strict;
3086use warnings;
3087use Carp qw/croak/;
3088use File::Temp qw/tempfile/;
3089use IO::File qw//;
3090# file baton members: path, mode_a, mode_b, pool, fh, blob, base
3092sub new {
3093 my ($class, $git_svn) = @_;
3094 my $self = SVN::Delta::Editor->new;
3095 bless $self, $class;
3096 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
3097 $self->{empty} = {};
3098 $self->{dir_prop} = {};
3099 $self->{file_prop} = {};
3100 $self->{absent_dir} = {};
3101 $self->{absent_file} = {};
3102 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3103 $self;
3104}
3105sub set_path_strip {
3107 my ($self, $path) = @_;
3108 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3109}
3110sub open_root {
3112 { path => '' };
3113}
3114sub open_directory {
3116 my ($self, $path, $pb, $rev) = @_;
3117 { path => $path };
3118}
3119sub git_path {
3121 my ($self, $path) = @_;
3122 if ($self->{path_strip}) {
3123 $path =~ s!$self->{path_strip}!! or
3124 die "Failed to strip path '$path' ($self->{path_strip})\n";
3125 }
3126 $path;
3127}
3128sub delete_entry {
3130 my ($self, $path, $rev, $pb) = @_;
3131 my $gpath = $self->git_path($path);
3133 return undef if ($gpath eq '');
3134 # remove entire directories.
3136 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
3137 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3138 -r --name-only -z/,
3139 $self->{c}, '--', $gpath);
3140 local $/ = "\0";
3141 while (<$ls>) {
3142 chomp;
3143 $self->{gii}->remove($_);
3144 print "\tD\t$_\n" unless $::_q;
3145 }
3146 print "\tD\t$gpath/\n" unless $::_q;
3147 command_close_pipe($ls, $ctx);
3148 $self->{empty}->{$path} = 0
3149 } else {
3150 $self->{gii}->remove($gpath);
3151 print "\tD\t$gpath\n" unless $::_q;
3152 }
3153 undef;
3154}
3155sub open_file {
3157 my ($self, $path, $pb, $rev) = @_;
3158 my $gpath = $self->git_path($path);
3159 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
3160 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
3161 unless (defined $mode && defined $blob) {
3162 die "$path was not found in commit $self->{c} (r$rev)\n";
3163 }
3164 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3165 pool => SVN::Pool->new, action => 'M' };
3166}
3167sub add_file {
3169 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3170 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3171 delete $self->{empty}->{$dir};
3172 { path => $path, mode_a => 100644, mode_b => 100644,
3173 pool => SVN::Pool->new, action => 'A' };
3174}
3175sub add_directory {
3177 my ($self, $path, $cp_path, $cp_rev) = @_;
3178 my $gpath = $self->git_path($path);
3179 if ($gpath eq '') {
3180 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3181 -r --name-only -z/,
3182 $self->{c});
3183 local $/ = "\0";
3184 while (<$ls>) {
3185 chomp;
3186 $self->{gii}->remove($_);
3187 print "\tD\t$_\n" unless $::_q;
3188 }
3189 command_close_pipe($ls, $ctx);
3190 $self->{empty}->{$path} = 0;
3191 }
3192 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3193 delete $self->{empty}->{$dir};
3194 $self->{empty}->{$path} = 1;
3195 { path => $path };
3196}
3197sub change_dir_prop {
3199 my ($self, $db, $prop, $value) = @_;
3200 $self->{dir_prop}->{$db->{path}} ||= {};
3201 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
3202 undef;
3203}
3204sub absent_directory {
3206 my ($self, $path, $pb) = @_;
3207 $self->{absent_dir}->{$pb->{path}} ||= [];
3208 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
3209 undef;
3210}
3211sub absent_file {
3213 my ($self, $path, $pb) = @_;
3214 $self->{absent_file}->{$pb->{path}} ||= [];
3215 push @{$self->{absent_file}->{$pb->{path}}}, $path;
3216 undef;
3217}
3218sub change_file_prop {
3220 my ($self, $fb, $prop, $value) = @_;
3221 if ($prop eq 'svn:executable') {
3222 if ($fb->{mode_b} != 120000) {
3223 $fb->{mode_b} = defined $value ? 100755 : 100644;
3224 }
3225 } elsif ($prop eq 'svn:special') {
3226 $fb->{mode_b} = defined $value ? 120000 : 100644;
3227 } else {
3228 $self->{file_prop}->{$fb->{path}} ||= {};
3229 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
3230 }
3231 undef;
3232}
3233sub apply_textdelta {
3235 my ($self, $fb, $exp) = @_;
3236 my $fh = Git::temp_acquire('svn_delta');
3237 # $fh gets auto-closed() by SVN::TxDelta::apply(),
3238 # (but $base does not,) so dup() it for reading in close_file
3239 open my $dup, '<&', $fh or croak $!;
3240 my $base = Git::temp_acquire('git_blob');
3241 if ($fb->{blob}) {
3242 print $base 'link ' if ($fb->{mode_a} == 120000);
3243 my $size = $::_repository->cat_blob($fb->{blob}, $base);
3244 die "Failed to read object $fb->{blob}" if ($size < 0);
3245 if (defined $exp) {
3247 seek $base, 0, 0 or croak $!;
3248 my $got = ::md5sum($base);
3249 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
3250 "expected: $exp\n",
3251 " got: $got\n" if ($got ne $exp);
3252 }
3253 }
3254 seek $base, 0, 0 or croak $!;
3255 $fb->{fh} = $fh;
3256 $fb->{base} = $base;
3257 [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
3258}
3259sub close_file {
3261 my ($self, $fb, $exp) = @_;
3262 my $hash;
3263 my $path = $self->git_path($fb->{path});
3264 if (my $fh = $fb->{fh}) {
3265 if (defined $exp) {
3266 seek($fh, 0, 0) or croak $!;
3267 my $got = ::md5sum($fh);
3268 if ($got ne $exp) {
3269 die "Checksum mismatch: $path\n",
3270 "expected: $exp\n got: $got\n";
3271 }
3272 }
3273 if ($fb->{mode_b} == 120000) {
3274 sysseek($fh, 0, 0) or croak $!;
3275 sysread($fh, my $buf, 5) == 5 or croak $!;
3276 unless ($buf eq 'link ') {
3278 warn "$path has mode 120000",
3279 " but is not a link\n";
3280 } else {
3281 my $tmp_fh = Git::temp_acquire('svn_hash');
3282 my $res;
3283 while ($res = sysread($fh, my $str, 1024)) {
3284 my $out = syswrite($tmp_fh, $str, $res);
3285 defined($out) && $out == $res
3286 or croak("write ",
3287 Git::temp_path($tmp_fh),
3288 ": $!\n");
3289 }
3290 defined $res or croak $!;
3291 ($fh, $tmp_fh) = ($tmp_fh, $fh);
3293 Git::temp_release($tmp_fh, 1);
3294 }
3295 }
3296 $hash = $::_repository->hash_and_insert_object(
3298 Git::temp_path($fh));
3299 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
3300 Git::temp_release($fb->{base}, 1);
3302 Git::temp_release($fh, 1);
3303 } else {
3304 $hash = $fb->{blob} or die "no blob information\n";
3305 }
3306 $fb->{pool}->clear;
3307 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
3308 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
3309 undef;
3310}
3311sub abort_edit {
3313 my $self = shift;
3314 $self->{nr} = $self->{gii}->{nr};
3315 delete $self->{gii};
3316 $self->SUPER::abort_edit(@_);
3317}
3318sub close_edit {
3320 my $self = shift;
3321 $self->{git_commit_ok} = 1;
3322 $self->{nr} = $self->{gii}->{nr};
3323 delete $self->{gii};
3324 $self->SUPER::close_edit(@_);
3325}
3326package SVN::Git::Editor;
3328use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
3329use strict;
3330use warnings;
3331use Carp qw/croak/;
3332use IO::File;
3333sub new {
3335 my ($class, $opts) = @_;
3336 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
3337 die "$_ required!\n" unless (defined $opts->{$_});
3338 }
3339 my $pool = SVN::Pool->new;
3341 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
3342 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
3343 $opts->{r}, $mods);
3344 # $opts->{ra} functions should not be used after this:
3346 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
3347 $opts->{editor_cb}, $pool);
3348 my $self = SVN::Delta::Editor->new(@ce, $pool);
3349 bless $self, $class;
3350 foreach (qw/svn_path r tree_a tree_b/) {
3351 $self->{$_} = $opts->{$_};
3352 }
3353 $self->{url} = $opts->{ra}->{url};
3354 $self->{mods} = $mods;
3355 $self->{types} = $types;
3356 $self->{pool} = $pool;
3357 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
3358 $self->{rm} = { };
3359 $self->{path_prefix} = length $self->{svn_path} ?
3360 "$self->{svn_path}/" : '';
3361 $self->{config} = $opts->{config};
3362 return $self;
3363}
3364sub generate_diff {
3366 my ($tree_a, $tree_b) = @_;
3367 my @diff_tree = qw(diff-tree -z -r);
3368 if ($_cp_similarity) {
3369 push @diff_tree, "-C$_cp_similarity";
3370 } else {
3371 push @diff_tree, '-C';
3372 }
3373 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
3374 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
3375 push @diff_tree, $tree_a, $tree_b;
3376 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
3377 local $/ = "\0";
3378 my $state = 'meta';
3379 my @mods;
3380 while (<$diff_fh>) {
3381 chomp $_; # this gets rid of the trailing "\0"
3382 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
3383 $::sha1\s($::sha1)\s
3384 ([MTCRAD])\d*$/xo) {
3385 push @mods, { mode_a => $1, mode_b => $2,
3386 sha1_b => $3, chg => $4 };
3387 if ($4 =~ /^(?:C|R)$/) {
3388 $state = 'file_a';
3389 } else {
3390 $state = 'file_b';
3391 }
3392 } elsif ($state eq 'file_a') {
3393 my $x = $mods[$#mods] or croak "Empty array\n";
3394 if ($x->{chg} !~ /^(?:C|R)$/) {
3395 croak "Error parsing $_, $x->{chg}\n";
3396 }
3397 $x->{file_a} = $_;
3398 $state = 'file_b';
3399 } elsif ($state eq 'file_b') {
3400 my $x = $mods[$#mods] or croak "Empty array\n";
3401 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
3402 croak "Error parsing $_, $x->{chg}\n";
3403 }
3404 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
3405 croak "Error parsing $_, $x->{chg}\n";
3406 }
3407 $x->{file_b} = $_;
3408 $state = 'meta';
3409 } else {
3410 croak "Error parsing $_\n";
3411 }
3412 }
3413 command_close_pipe($diff_fh, $ctx);
3414 \@mods;
3415}
3416sub check_diff_paths {
3418 my ($ra, $pfx, $rev, $mods) = @_;
3419 my %types;
3420 $pfx .= '/' if length $pfx;
3421 sub type_diff_paths {
3423 my ($ra, $types, $path, $rev) = @_;
3424 my @p = split m#/+#, $path;
3425 my $c = shift @p;
3426 unless (defined $types->{$c}) {
3427 $types->{$c} = $ra->check_path($c, $rev);
3428 }
3429 while (@p) {
3430 $c .= '/' . shift @p;
3431 next if defined $types->{$c};
3432 $types->{$c} = $ra->check_path($c, $rev);
3433 }
3434 }
3435 foreach my $m (@$mods) {
3437 foreach my $f (qw/file_a file_b/) {
3438 next unless defined $m->{$f};
3439 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
3440 if (length $pfx.$dir && ! defined $types{$dir}) {
3441 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
3442 }
3443 }
3444 }
3445 \%types;
3446}
3447sub split_path {
3449 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
3450}
3451sub repo_path {
3453 my ($self, $path) = @_;
3454 $self->{path_prefix}.(defined $path ? $path : '');
3455}
3456sub url_path {
3458 my ($self, $path) = @_;
3459 if ($self->{url} =~ m#^https?://#) {
3460 $path =~ s/([^a-zA-Z0-9_.-])/uc sprintf("%%%02x",ord($1))/eg;
3461 }
3462 $self->{url} . '/' . $self->repo_path($path);
3463}
3464sub rmdirs {
3466 my ($self) = @_;
3467 my $rm = $self->{rm};
3468 delete $rm->{''}; # we never delete the url we're tracking
3469 return unless %$rm;
3470 foreach (keys %$rm) {
3472 my @d = split m#/#, $_;
3473 my $c = shift @d;
3474 $rm->{$c} = 1;
3475 while (@d) {
3476 $c .= '/' . shift @d;
3477 $rm->{$c} = 1;
3478 }
3479 }
3480 delete $rm->{$self->{svn_path}};
3481 delete $rm->{''}; # we never delete the url we're tracking
3482 return unless %$rm;
3483 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
3485 $self->{tree_b});
3486 local $/ = "\0";
3487 while (<$fh>) {
3488 chomp;
3489 my @dn = split m#/#, $_;
3490 while (pop @dn) {
3491 delete $rm->{join '/', @dn};
3492 }
3493 unless (%$rm) {
3494 close $fh;
3495 return;
3496 }
3497 }
3498 command_close_pipe($fh, $ctx);
3499 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
3501 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
3502 $self->close_directory($bat->{$d}, $p);
3503 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
3504 print "\tD+\t$d/\n" unless $::_q;
3505 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
3506 delete $bat->{$d};
3507 }
3508}
3509sub open_or_add_dir {
3511 my ($self, $full_path, $baton) = @_;
3512 my $t = $self->{types}->{$full_path};
3513 if (!defined $t) {
3514 die "$full_path not known in r$self->{r} or we have a bug!\n";
3515 }
3516 {
3517 no warnings 'once';
3518 # SVN::Node::none and SVN::Node::file are used only once,
3519 # so we're shutting up Perl's warnings about them.
3520 if ($t == $SVN::Node::none) {
3521 return $self->add_directory($full_path, $baton,
3522 undef, -1, $self->{pool});
3523 } elsif ($t == $SVN::Node::dir) {
3524 return $self->open_directory($full_path, $baton,
3525 $self->{r}, $self->{pool});
3526 } # no warnings 'once'
3527 print STDERR "$full_path already exists in repository at ",
3528 "r$self->{r} and it is not a directory (",
3529 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
3530 } # no warnings 'once'
3531 exit 1;
3532}
3533sub ensure_path {
3535 my ($self, $path) = @_;
3536 my $bat = $self->{bat};
3537 my $repo_path = $self->repo_path($path);
3538 return $bat->{''} unless (length $repo_path);
3539 my @p = split m#/+#, $repo_path;
3540 my $c = shift @p;
3541 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
3542 while (@p) {
3543 my $c0 = $c;
3544 $c .= '/' . shift @p;
3545 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
3546 }
3547 return $bat->{$c};
3548}
3549# Subroutine to convert a globbing pattern to a regular expression.
3551# From perl cookbook.
3552sub glob2pat {
3553 my $globstr = shift;
3554 my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
3555 $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
3556 return '^' . $globstr . '$';
3557}
3558sub check_autoprop {
3560 my ($self, $pattern, $properties, $file, $fbat) = @_;
3561 # Convert the globbing pattern to a regular expression.
3562 my $regex = glob2pat($pattern);
3563 # Check if the pattern matches the file name.
3564 if($file =~ m/($regex)/) {
3565 # Parse the list of properties to set.
3566 my @props = split(/;/, $properties);
3567 foreach my $prop (@props) {
3568 # Parse 'name=value' syntax and set the property.
3569 if ($prop =~ /([^=]+)=(.*)/) {
3570 my ($n,$v) = ($1,$2);
3571 for ($n, $v) {
3572 s/^\s+//; s/\s+$//;
3573 }
3574 $self->change_file_prop($fbat, $n, $v);
3575 }
3576 }
3577 }
3578}
3579sub apply_autoprops {
3581 my ($self, $file, $fbat) = @_;
3582 my $conf_t = ${$self->{config}}{'config'};
3583 no warnings 'once';
3584 # Check [miscellany]/enable-auto-props in svn configuration.
3585 if (SVN::_Core::svn_config_get_bool(
3586 $conf_t,
3587 $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
3588 $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
3589 0)) {
3590 # Auto-props are enabled. Enumerate them to look for matches.
3591 my $callback = sub {
3592 $self->check_autoprop($_[0], $_[1], $file, $fbat);
3593 };
3594 SVN::_Core::svn_config_enumerate(
3595 $conf_t,
3596 $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
3597 $callback);
3598 }
3599}
3600sub A {
3602 my ($self, $m) = @_;
3603 my ($dir, $file) = split_path($m->{file_b});
3604 my $pbat = $self->ensure_path($dir);
3605 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3606 undef, -1);
3607 print "\tA\t$m->{file_b}\n" unless $::_q;
3608 $self->apply_autoprops($file, $fbat);
3609 $self->chg_file($fbat, $m);
3610 $self->close_file($fbat,undef,$self->{pool});
3611}
3612sub C {
3614 my ($self, $m) = @_;
3615 my ($dir, $file) = split_path($m->{file_b});
3616 my $pbat = $self->ensure_path($dir);
3617 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3618 $self->url_path($m->{file_a}), $self->{r});
3619 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3620 $self->chg_file($fbat, $m);
3621 $self->close_file($fbat,undef,$self->{pool});
3622}
3623sub delete_entry {
3625 my ($self, $path, $pbat) = @_;
3626 my $rpath = $self->repo_path($path);
3627 my ($dir, $file) = split_path($rpath);
3628 $self->{rm}->{$dir} = 1;
3629 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
3630}
3631sub R {
3633 my ($self, $m) = @_;
3634 my ($dir, $file) = split_path($m->{file_b});
3635 my $pbat = $self->ensure_path($dir);
3636 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3637 $self->url_path($m->{file_a}), $self->{r});
3638 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3639 $self->chg_file($fbat, $m);
3640 $self->close_file($fbat,undef,$self->{pool});
3641 ($dir, $file) = split_path($m->{file_a});
3643 $pbat = $self->ensure_path($dir);
3644 $self->delete_entry($m->{file_a}, $pbat);
3645}
3646sub M {
3648 my ($self, $m) = @_;
3649 my ($dir, $file) = split_path($m->{file_b});
3650 my $pbat = $self->ensure_path($dir);
3651 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
3652 $pbat,$self->{r},$self->{pool});
3653 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
3654 $self->chg_file($fbat, $m);
3655 $self->close_file($fbat,undef,$self->{pool});
3656}
3657sub T { shift->M(@_) }
3659sub change_file_prop {
3661 my ($self, $fbat, $pname, $pval) = @_;
3662 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
3663}
3664sub chg_file {
3666 my ($self, $fbat, $m) = @_;
3667 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
3668 $self->change_file_prop($fbat,'svn:executable','*');
3669 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
3670 $self->change_file_prop($fbat,'svn:executable',undef);
3671 }
3672 my $fh = Git::temp_acquire('git_blob');
3673 if ($m->{mode_b} =~ /^120/) {
3674 print $fh 'link ' or croak $!;
3675 $self->change_file_prop($fbat,'svn:special','*');
3676 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
3677 $self->change_file_prop($fbat,'svn:special',undef);
3678 }
3679 my $size = $::_repository->cat_blob($m->{sha1_b}, $fh);
3680 croak "Failed to read object $m->{sha1_b}" if ($size < 0);
3681 $fh->flush == 0 or croak $!;
3682 seek $fh, 0, 0 or croak $!;
3683 my $exp = ::md5sum($fh);
3685 seek $fh, 0, 0 or croak $!;
3686 my $pool = SVN::Pool->new;
3688 my $atd = $self->apply_textdelta($fbat, undef, $pool);
3689 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
3690 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
3691 Git::temp_release($fh, 1);
3692 $pool->clear;
3693}
3694sub D {
3696 my ($self, $m) = @_;
3697 my ($dir, $file) = split_path($m->{file_b});
3698 my $pbat = $self->ensure_path($dir);
3699 print "\tD\t$m->{file_b}\n" unless $::_q;
3700 $self->delete_entry($m->{file_b}, $pbat);
3701}
3702sub close_edit {
3704 my ($self) = @_;
3705 my ($p,$bat) = ($self->{pool}, $self->{bat});
3706 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
3707 next if $_ eq '';
3708 $self->close_directory($bat->{$_}, $p);
3709 }
3710 $self->close_directory($bat->{''}, $p);
3711 $self->SUPER::close_edit($p);
3712 $p->clear;
3713}
3714sub abort_edit {
3716 my ($self) = @_;
3717 $self->SUPER::abort_edit($self->{pool});
3718}
3719sub DESTROY {
3721 my $self = shift;
3722 $self->SUPER::DESTROY(@_);
3723 $self->{pool}->clear;
3724}
3725# this drives the editor
3727sub apply_diff {
3728 my ($self) = @_;
3729 my $mods = $self->{mods};
3730 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
3731 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
3732 my $f = $m->{chg};
3733 if (defined $o{$f}) {
3734 $self->$f($m);
3735 } else {
3736 fatal("Invalid change type: $f");
3737 }
3738 }
3739 $self->rmdirs if $_rmdir;
3740 if (@$mods == 0) {
3741 $self->abort_edit;
3742 } else {
3743 $self->close_edit;
3744 }
3745 return scalar @$mods;
3746}
3747package Git::SVN::Ra;
3749use vars qw/@ISA $config_dir $_log_window_size/;
3750use strict;
3751use warnings;
3752my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
3753BEGIN {
3755 # enforce temporary pool usage for some simple functions
3756 no strict 'refs';
3757 for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root/) {
3758 my $SUPER = "SUPER::$f";
3759 *$f = sub {
3760 my $self = shift;
3761 my $pool = SVN::Pool->new;
3762 my @ret = $self->$SUPER(@_,$pool);
3763 $pool->clear;
3764 wantarray ? @ret : $ret[0];
3765 };
3766 }
3767}
3768sub _auth_providers () {
3770 [
3771 SVN::Client::get_simple_provider(),
3772 SVN::Client::get_ssl_server_trust_file_provider(),
3773 SVN::Client::get_simple_prompt_provider(
3774 \&Git::SVN::Prompt::simple, 2),
3775 SVN::Client::get_ssl_client_cert_file_provider(),
3776 SVN::Client::get_ssl_client_cert_prompt_provider(
3777 \&Git::SVN::Prompt::ssl_client_cert, 2),
3778 SVN::Client::get_ssl_client_cert_pw_file_provider(),
3779 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
3780 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
3781 SVN::Client::get_username_provider(),
3782 SVN::Client::get_ssl_server_trust_prompt_provider(
3783 \&Git::SVN::Prompt::ssl_server_trust),
3784 SVN::Client::get_username_prompt_provider(
3785 \&Git::SVN::Prompt::username, 2)
3786 ]
3787}
3788sub escape_uri_only {
3790 my ($uri) = @_;
3791 my @tmp;
3792 foreach (split m{/}, $uri) {
3793 s/([^\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
3794 push @tmp, $_;
3795 }
3796 join('/', @tmp);
3797}
3798sub escape_url {
3800 my ($url) = @_;
3801 if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
3802 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
3803 $url = "$scheme://$domain$uri";
3804 }
3805 $url;
3806}
3807sub new {
3809 my ($class, $url) = @_;
3810 $url =~ s!/+$!!;
3811 return $RA if ($RA && $RA->{url} eq $url);
3812 SVN::_Core::svn_config_ensure($config_dir, undef);
3814 my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
3815 my $config = SVN::Core::config_get_config($config_dir);
3816 $RA = undef;
3817 my $dont_store_passwords = 1;
3818 my $conf_t = ${$config}{'config'};
3819 {
3820 no warnings 'once';
3821 # The usage of $SVN::_Core::SVN_CONFIG_* variables
3822 # produces warnings that variables are used only once.
3823 # I had not found the better way to shut them up, so
3824 # the warnings of type 'once' are disabled in this block.
3825 if (SVN::_Core::svn_config_get_bool($conf_t,
3826 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
3827 $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
3828 1) == 0) {
3829 SVN::_Core::svn_auth_set_parameter($baton,
3830 $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
3831 bless (\$dont_store_passwords, "_p_void"));
3832 }
3833 if (SVN::_Core::svn_config_get_bool($conf_t,
3834 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
3835 $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
3836 1) == 0) {
3837 $Git::SVN::Prompt::_no_auth_cache = 1;
3838 }
3839 } # no warnings 'once'
3840 my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
3841 config => $config,
3842 pool => SVN::Pool->new,
3843 auth_provider_callbacks => $callbacks);
3844 $self->{url} = $url;
3845 $self->{svn_path} = $url;
3846 $self->{repos_root} = $self->get_repos_root;
3847 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
3848 $self->{cache} = { check_path => { r => 0, data => {} },
3849 get_dir => { r => 0, data => {} } };
3850 $RA = bless $self, $class;
3851}
3852sub check_path {
3854 my ($self, $path, $r) = @_;
3855 my $cache = $self->{cache}->{check_path};
3856 if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
3857 return $cache->{data}->{$path};
3858 }
3859 my $pool = SVN::Pool->new;
3860 my $t = $self->SUPER::check_path($path, $r, $pool);
3861 $pool->clear;
3862 if ($r != $cache->{r}) {
3863 %{$cache->{data}} = ();
3864 $cache->{r} = $r;
3865 }
3866 $cache->{data}->{$path} = $t;
3867}
3868sub get_dir {
3870 my ($self, $dir, $r) = @_;
3871 my $cache = $self->{cache}->{get_dir};
3872 if ($r == $cache->{r}) {
3873 if (my $x = $cache->{data}->{$dir}) {
3874 return wantarray ? @$x : $x->[0];
3875 }
3876 }
3877 my $pool = SVN::Pool->new;
3878 my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
3879 my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
3880 $pool->clear;
3881 if ($r != $cache->{r}) {
3882 %{$cache->{data}} = ();
3883 $cache->{r} = $r;
3884 }
3885 $cache->{data}->{$dir} = [ \%dirents, $r, $props ];
3886 wantarray ? (\%dirents, $r, $props) : \%dirents;
3887}
3888sub DESTROY {
3890 # do not call the real DESTROY since we store ourselves in $RA
3891}
3892sub get_log {
3894 my ($self, @args) = @_;
3895 my $pool = SVN::Pool->new;
3896 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
3897 my $ret = $self->SUPER::get_log(@args, $pool);
3898 $pool->clear;
3899 $ret;
3900}
3901sub trees_match {
3903 my ($self, $url1, $rev1, $url2, $rev2) = @_;
3904 my $ctx = SVN::Client->new(auth => _auth_providers);
3905 my $out = IO::File->new_tmpfile;
3906 # older SVN (1.1.x) doesn't take $pool as the last parameter for
3908 # $ctx->diff(), so we'll create a default one
3909 my $pool = SVN::Pool->new_default_sub;
3910 $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
3912 $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
3913 $out->flush;
3914 my $ret = (($out->stat)[7] == 0);
3915 close $out or croak $!;
3916 $ret;
3918}
3919sub get_commit_editor {
3921 my ($self, $log, $cb, $pool) = @_;
3922 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
3923 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
3924}
3925sub gs_do_update {
3927 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
3928 my $new = ($rev_a == $rev_b);
3929 my $path = $gs->{path};
3930 if ($new && -e $gs->{index}) {
3932 unlink $gs->{index} or die
3933 "Couldn't unlink index: $gs->{index}: $!\n";
3934 }
3935 my $pool = SVN::Pool->new;
3936 $editor->set_path_strip($path);
3937 my (@pc) = split m#/#, $path;
3938 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
3939 1, $editor, $pool);
3940 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3941 # Since we can't rely on svn_ra_reparent being available, we'll
3943 # just have to do some magic with set_path to make it so
3944 # we only want a partial path.
3945 my $sp = '';
3946 my $final = join('/', @pc);
3947 while (@pc) {
3948 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
3949 $sp .= '/' if length $sp;
3950 $sp .= shift @pc;
3951 }
3952 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
3953 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
3955 $reporter->finish_report($pool);
3957 $pool->clear;
3958 $editor->{git_commit_ok};
3959}
3960# this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
3962# svn_ra_reparent didn't work before 1.4)
3963sub gs_do_switch {
3964 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
3965 my $path = $gs->{path};
3966 my $pool = SVN::Pool->new;
3967 my $full_url = $self->{url};
3969 my $old_url = $full_url;
3970 $full_url .= '/' . escape_uri_only($path) if length $path;
3971 my ($ra, $reparented);
3972 if ($old_url =~ m#^svn(\+ssh)?://#) {
3974 $_[0] = undef;
3975 $self = undef;
3976 $RA = undef;
3977 $ra = Git::SVN::Ra->new($full_url);
3978 $ra_invalid = 1;
3979 } elsif ($old_url ne $full_url) {
3980 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool);
3981 $self->{url} = $full_url;
3982 $reparented = 1;
3983 }
3984 $ra ||= $self;
3986 $url_b = escape_url($url_b);
3987 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
3988 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3989 $reporter->set_path('', $rev_a, 0, @lock, $pool);
3990 $reporter->finish_report($pool);
3991 if ($reparented) {
3993 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
3994 $self->{url} = $old_url;
3995 }
3996 $pool->clear;
3998 $editor->{git_commit_ok};
3999}
4000sub longest_common_path {
4002 my ($gsv, $globs) = @_;
4003 my %common;
4004 my $common_max = scalar @$gsv;
4005 foreach my $gs (@$gsv) {
4007 my @tmp = split m#/#, $gs->{path};
4008 my $p = '';
4009 foreach (@tmp) {
4010 $p .= length($p) ? "/$_" : $_;
4011 $common{$p} ||= 0;
4012 $common{$p}++;
4013 }
4014 }
4015 $globs ||= [];
4016 $common_max += scalar @$globs;
4017 foreach my $glob (@$globs) {
4018 my @tmp = split m#/#, $glob->{path}->{left};
4019 my $p = '';
4020 foreach (@tmp) {
4021 $p .= length($p) ? "/$_" : $_;
4022 $common{$p} ||= 0;
4023 $common{$p}++;
4024 }
4025 }
4026 my $longest_path = '';
4028 foreach (sort {length $b <=> length $a} keys %common) {
4029 if ($common{$_} == $common_max) {
4030 $longest_path = $_;
4031 last;
4032 }
4033 }
4034 $longest_path;
4035}
4036sub gs_fetch_loop_common {
4038 my ($self, $base, $head, $gsv, $globs) = @_;
4039 return if ($base > $head);
4040 my $inc = $_log_window_size;
4041 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
4042 my $longest_path = longest_common_path($gsv, $globs);
4043 my $ra_url = $self->{url};
4044 while (1) {
4045 my %revs;
4046 my $err;
4047 my $err_handler = $SVN::Error::handler;
4048 $SVN::Error::handler = sub {
4049 ($err) = @_;
4050 skip_unknown_revs($err);
4051 };
4052 sub _cb {
4053 my ($paths, $r, $author, $date, $log) = @_;
4054 [ dup_changed_paths($paths),
4055 { author => $author, date => $date, log => $log } ];
4056 }
4057 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
4058 sub { $revs{$_[1]} = _cb(@_) });
4059 if ($err && $max >= $head) {
4060 print STDERR "Path '$longest_path' ",
4061 "was probably deleted:\n",
4062 $err->expanded_message,
4063 "\nWill attempt to follow ",
4064 "revisions r$min .. r$max ",
4065 "committed before the deletion\n";
4066 my $hi = $max;
4067 while (--$hi >= $min) {
4068 my $ok;
4069 $self->get_log([$longest_path], $min, $hi,
4070 0, 1, 1, sub {
4071 $ok ||= $_[1];
4072 $revs{$_[1]} = _cb(@_) });
4073 if ($ok) {
4074 print STDERR "r$min .. r$ok OK\n";
4075 last;
4076 }
4077 }
4078 }
4079 $SVN::Error::handler = $err_handler;
4080 my %exists = map { $_->{path} => $_ } @$gsv;
4082 foreach my $r (sort {$a <=> $b} keys %revs) {
4083 my ($paths, $logged) = @{$revs{$r}};
4084 foreach my $gs ($self->match_globs(\%exists, $paths,
4086 $globs, $r)) {
4087 if ($gs->rev_map_max >= $r) {
4088 next;
4089 }
4090 next unless $gs->match_paths($paths, $r);
4091 $gs->{logged_rev_props} = $logged;
4092 if (my $last_commit = $gs->last_commit) {
4093 $gs->assert_index_clean($last_commit);
4094 }
4095 my $log_entry = $gs->do_fetch($paths, $r);
4096 if ($log_entry) {
4097 $gs->do_git_commit($log_entry);
4098 }
4099 $INDEX_FILES{$gs->{index}} = 1;
4100 }
4101 foreach my $g (@$globs) {
4102 my $k = "svn-remote.$g->{remote}." .
4103 "$g->{t}-maxRev";
4104 Git::SVN::tmp_config($k, $r);
4105 }
4106 if ($ra_invalid) {
4107 $_[0] = undef;
4108 $self = undef;
4109 $RA = undef;
4110 $self = Git::SVN::Ra->new($ra_url);
4111 $ra_invalid = undef;
4112 }
4113 }
4114 # pre-fill the .rev_db since it'll eventually get filled in
4115 # with '0' x40 if something new gets committed
4116 foreach my $gs (@$gsv) {
4117 next if $gs->rev_map_max >= $max;
4118 next if defined $gs->rev_map_get($max);
4119 $gs->rev_map_set($max, 0 x40);
4120 }
4121 foreach my $g (@$globs) {
4122 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
4123 Git::SVN::tmp_config($k, $max);
4124 }
4125 last if $max >= $head;
4126 $min = $max + 1;
4127 $max += $inc;
4128 $max = $head if ($max > $head);
4129 }
4130 Git::SVN::gc();
4131}
4132sub get_dir_globbed {
4134 my ($self, $left, $depth, $r) = @_;
4135 my @x = eval { $self->get_dir($left, $r) };
4137 return unless scalar @x == 3;
4138 my $dirents = $x[0];
4139 my @finalents;
4140 foreach my $de (keys %$dirents) {
4141 next if $dirents->{$de}->{kind} != $SVN::Node::dir;
4142 if ($depth > 1) {
4143 my @args = ("$left/$de", $depth - 1, $r);
4144 foreach my $dir ($self->get_dir_globbed(@args)) {
4145 push @finalents, "$de/$dir";
4146 }
4147 } else {
4148 push @finalents, $de;
4149 }
4150 }
4151 @finalents;
4152}
4153sub match_globs {
4155 my ($self, $exists, $paths, $globs, $r) = @_;
4156 sub get_dir_check {
4158 my ($self, $exists, $g, $r) = @_;
4159 my @dirs = $self->get_dir_globbed($g->{path}->{left},
4161 $g->{path}->{depth},
4162 $r);
4163 foreach my $de (@dirs) {
4165 my $p = $g->{path}->full_path($de);
4166 next if $exists->{$p};
4167 next if (length $g->{path}->{right} &&
4168 ($self->check_path($p, $r) !=
4169 $SVN::Node::dir));
4170 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
4171 $g->{ref}->full_path($de), 1);
4172 }
4173 }
4174 foreach my $g (@$globs) {
4175 if (my $path = $paths->{"/$g->{path}->{left}"}) {
4176 if ($path->{action} =~ /^[AR]$/) {
4177 get_dir_check($self, $exists, $g, $r);
4178 }
4179 }
4180 foreach (keys %$paths) {
4181 if (/$g->{path}->{left_regex}/ &&
4182 !/$g->{path}->{regex}/) {
4183 next if $paths->{$_}->{action} !~ /^[AR]$/;
4184 get_dir_check($self, $exists, $g, $r);
4185 }
4186 next unless /$g->{path}->{regex}/;
4187 my $p = $1;
4188 my $pathname = $g->{path}->full_path($p);
4189 next if $exists->{$pathname};
4190 next if ($self->check_path($pathname, $r) !=
4191 $SVN::Node::dir);
4192 $exists->{$pathname} = Git::SVN->init(
4193 $self->{url}, $pathname, undef,
4194 $g->{ref}->full_path($p), 1);
4195 }
4196 my $c = '';
4197 foreach (split m#/#, $g->{path}->{left}) {
4198 $c .= "/$_";
4199 next unless ($paths->{$c} &&
4200 ($paths->{$c}->{action} =~ /^[AR]$/));
4201 get_dir_check($self, $exists, $g, $r);
4202 }
4203 }
4204 values %$exists;
4205}
4206sub minimize_url {
4208 my ($self) = @_;
4209 return $self->{url} if ($self->{url} eq $self->{repos_root});
4210 my $url = $self->{repos_root};
4211 my @components = split(m!/!, $self->{svn_path});
4212 my $c = '';
4213 do {
4214 $url .= "/$c" if length $c;
4215 eval { (ref $self)->new($url)->get_latest_revnum };
4216 } while ($@ && ($c = shift @components));
4217 $url;
4218}
4219sub can_do_switch {
4221 my $self = shift;
4222 unless (defined $can_do_switch) {
4223 my $pool = SVN::Pool->new;
4224 my $rep = eval {
4225 $self->do_switch(1, '', 0, $self->{url},
4226 SVN::Delta::Editor->new, $pool);
4227 };
4228 if ($@) {
4229 $can_do_switch = 0;
4230 } else {
4231 $rep->abort_report($pool);
4232 $can_do_switch = 1;
4233 }
4234 $pool->clear;
4235 }
4236 $can_do_switch;
4237}
4238sub skip_unknown_revs {
4240 my ($err) = @_;
4241 my $errno = $err->apr_err();
4242 # Maybe the branch we're tracking didn't
4243 # exist when the repo started, so it's
4244 # not an error if it doesn't, just continue
4245 #
4246 # Wonderfully consistent library, eh?
4247 # 160013 - svn:// and file://
4248 # 175002 - http(s)://
4249 # 175007 - http(s):// (this repo required authorization, too...)
4250 # More codes may be discovered later...
4251 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
4252 my $err_key = $err->expanded_message;
4253 # revision numbers change every time, filter them out
4254 $err_key =~ s/\d+/\0/g;
4255 $err_key = "$errno\0$err_key";
4256 unless ($ignored_err{$err_key}) {
4257 warn "W: Ignoring error from SVN, path probably ",
4258 "does not exist: ($errno): ",
4259 $err->expanded_message,"\n";
4260 warn "W: Do not be alarmed at the above message ",
4261 "git-svn is just searching aggressively for ",
4262 "old history.\n",
4263 "This may take a while on large repositories\n";
4264 $ignored_err{$err_key} = 1;
4265 }
4266 return;
4267 }
4268 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
4269}
4270# svn_log_changed_path_t objects passed to get_log are likely to be
4272# overwritten even if only the refs are copied to an external variable,
4273# so we should dup the structures in their entirety. Using an externally
4274# passed pool (instead of our temporary and quickly cleared pool in
4275# Git::SVN::Ra) does not help matters at all...
4276sub dup_changed_paths {
4277 my ($paths) = @_;
4278 return undef unless $paths;
4279 my %ret;
4280 foreach my $p (keys %$paths) {
4281 my $i = $paths->{$p};
4282 my %s = map { $_ => $i->$_ }
4283 qw/copyfrom_path copyfrom_rev action/;
4284 $ret{$p} = \%s;
4285 }
4286 \%ret;
4287}
4288package Git::SVN::Log;
4290use strict;
4291use warnings;
4292use POSIX qw/strftime/;
4293use constant commit_log_separator => ('-' x 72) . "\n";
4294use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
4295 %rusers $show_commit $incremental/;
4296my $l_fmt;
4297sub cmt_showable {
4299 my ($c) = @_;
4300 return 1 if defined $c->{r};
4301 # big commit message got truncated by the 16k pretty buffer in rev-list
4303 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
4304 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
4305 @{$c->{l}} = ();
4306 my @log = command(qw/cat-file commit/, $c->{c});
4307 # shift off the headers
4309 shift @log while ($log[0] ne '');
4310 shift @log;
4311 # TODO: make $c->{l} not have a trailing newline in the future
4313 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
4314 (undef, $c->{r}, undef) = ::extract_metadata(
4316 (grep(/^git-svn-id: /, @log))[-1]);
4317 }
4318 return defined $c->{r};
4319}
4320sub log_use_color {
4322 return $color || Git->repository->get_colorbool('color.diff');
4323}
4324sub git_svn_log_cmd {
4326 my ($r_min, $r_max, @args) = @_;
4327 my $head = 'HEAD';
4328 my (@files, @log_opts);
4329 foreach my $x (@args) {
4330 if ($x eq '--' || @files) {
4331 push @files, $x;
4332 } else {
4333 if (::verify_ref("$x^0")) {
4334 $head = $x;
4335 } else {
4336 push @log_opts, $x;
4337 }
4338 }
4339 }
4340 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
4342 $gs ||= Git::SVN->_new;
4343 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
4344 $gs->refname);
4345 push @cmd, '-r' unless $non_recursive;
4346 push @cmd, qw/--raw --name-status/ if $verbose;
4347 push @cmd, '--color' if log_use_color();
4348 push @cmd, @log_opts;
4349 if (defined $r_max && $r_max == $r_min) {
4350 push @cmd, '--max-count=1';
4351 if (my $c = $gs->rev_map_get($r_max)) {
4352 push @cmd, $c;
4353 }
4354 } elsif (defined $r_max) {
4355 if ($r_max < $r_min) {
4356 ($r_min, $r_max) = ($r_max, $r_min);
4357 }
4358 my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
4359 my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
4360 # If there are no commits in the range, both $c_max and $c_min
4361 # will be undefined. If there is at least 1 commit in the
4362 # range, both will be defined.
4363 return () if !defined $c_min || !defined $c_max;
4364 if ($c_min eq $c_max) {
4365 push @cmd, '--max-count=1', $c_min;
4366 } else {
4367 push @cmd, '--boundary', "$c_min..$c_max";
4368 }
4369 }
4370 return (@cmd, @files);
4371}
4372# adapted from pager.c
4374sub config_pager {
4375 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
4376 if (!defined $pager) {
4377 $pager = 'less';
4378 } elsif (length $pager == 0 || $pager eq 'cat') {
4379 $pager = undef;
4380 }
4381 $ENV{GIT_PAGER_IN_USE} = defined($pager);
4382}
4383sub run_pager {
4385 return unless -t *STDOUT && defined $pager;
4386 pipe my ($rfd, $wfd) or return;
4387 defined(my $pid = fork) or ::fatal "Can't fork: $!";
4388 if (!$pid) {
4389 open STDOUT, '>&', $wfd or
4390 ::fatal "Can't redirect to stdout: $!";
4391 return;
4392 }
4393 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
4394 $ENV{LESS} ||= 'FRSX';
4395 exec $pager or ::fatal "Can't run pager: $! ($pager)";
4396}
4397sub format_svn_date {
4399 return strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)", localtime(shift));
4400}
4401sub parse_git_date {
4403 my ($t, $tz) = @_;
4404 # Date::Parse isn't in the standard Perl distro :(
4405 if ($tz =~ s/^\+//) {
4406 $t += tz_to_s_offset($tz);
4407 } elsif ($tz =~ s/^\-//) {
4408 $t -= tz_to_s_offset($tz);
4409 }
4410 return $t;
4411}
4412sub set_local_timezone {
4414 if (defined $TZ) {
4415 $ENV{TZ} = $TZ;
4416 } else {
4417 delete $ENV{TZ};
4418 }
4419}
4420sub tz_to_s_offset {
4422 my ($tz) = @_;
4423 $tz =~ s/(\d\d)$//;
4424 return ($1 * 60) + ($tz * 3600);
4425}
4426sub get_author_info {
4428 my ($dest, $author, $t, $tz) = @_;
4429 $author =~ s/(?:^\s*|\s*$)//g;
4430 $dest->{a_raw} = $author;
4431 my $au;
4432 if ($::_authors) {
4433 $au = $rusers{$author} || undef;
4434 }
4435 if (!$au) {
4436 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
4437 }
4438 $dest->{t} = $t;
4439 $dest->{tz} = $tz;
4440 $dest->{a} = $au;
4441 $dest->{t_utc} = parse_git_date($t, $tz);
4442}
4443sub process_commit {
4445 my ($c, $r_min, $r_max, $defer) = @_;
4446 if (defined $r_min && defined $r_max) {
4447 if ($r_min == $c->{r} && $r_min == $r_max) {
4448 show_commit($c);
4449 return 0;
4450 }
4451 return 1 if $r_min == $r_max;
4452 if ($r_min < $r_max) {
4453 # we need to reverse the print order
4454 return 0 if (defined $limit && --$limit < 0);
4455 push @$defer, $c;
4456 return 1;
4457 }
4458 if ($r_min != $r_max) {
4459 return 1 if ($r_min < $c->{r});
4460 return 1 if ($r_max > $c->{r});
4461 }
4462 }
4463 return 0 if (defined $limit && --$limit < 0);
4464 show_commit($c);
4465 return 1;
4466}
4467sub show_commit {
4469 my $c = shift;
4470 if ($oneline) {
4471 my $x = "\n";
4472 if (my $l = $c->{l}) {
4473 while ($l->[0] =~ /^\s*$/) { shift @$l }
4474 $x = $l->[0];
4475 }
4476 $l_fmt ||= 'A' . length($c->{r});
4477 print 'r',pack($l_fmt, $c->{r}),' | ';
4478 print "$c->{c} | " if $show_commit;
4479 print $x;
4480 } else {
4481 show_commit_normal($c);
4482 }
4483}
4484sub show_commit_changed_paths {
4486 my ($c) = @_;
4487 return unless $c->{changed};
4488 print "Changed paths:\n", @{$c->{changed}};
4489}
4490sub show_commit_normal {
4492 my ($c) = @_;
4493 print commit_log_separator, "r$c->{r} | ";
4494 print "$c->{c} | " if $show_commit;
4495 print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
4496 my $nr_line = 0;
4497 if (my $l = $c->{l}) {
4499 while ($l->[$#$l] eq "\n" && $#$l > 0
4500 && $l->[($#$l - 1)] eq "\n") {
4501 pop @$l;
4502 }
4503 $nr_line = scalar @$l;
4504 if (!$nr_line) {
4505 print "1 line\n\n\n";
4506 } else {
4507 if ($nr_line == 1) {
4508 $nr_line = '1 line';
4509 } else {
4510 $nr_line .= ' lines';
4511 }
4512 print $nr_line, "\n";
4513 show_commit_changed_paths($c);
4514 print "\n";
4515 print $_ foreach @$l;
4516 }
4517 } else {
4518 print "1 line\n";
4519 show_commit_changed_paths($c);
4520 print "\n";
4521 }
4523 foreach my $x (qw/raw stat diff/) {
4524 if ($c->{$x}) {
4525 print "\n";
4526 print $_ foreach @{$c->{$x}}
4527 }
4528 }
4529}
4530sub cmd_show_log {
4532 my (@args) = @_;
4533 my ($r_min, $r_max);
4534 my $r_last = -1; # prevent dupes
4535 set_local_timezone();
4536 if (defined $::_revision) {
4537 if ($::_revision =~ /^(\d+):(\d+)$/) {
4538 ($r_min, $r_max) = ($1, $2);
4539 } elsif ($::_revision =~ /^\d+$/) {
4540 $r_min = $r_max = $::_revision;
4541 } else {
4542 ::fatal "-r$::_revision is not supported, use ",
4543 "standard 'git log' arguments instead";
4544 }
4545 }
4546 config_pager();
4548 @args = git_svn_log_cmd($r_min, $r_max, @args);
4549 if (!@args) {
4550 print commit_log_separator unless $incremental || $oneline;
4551 return;
4552 }
4553 my $log = command_output_pipe(@args);
4554 run_pager();
4555 my (@k, $c, $d, $stat);
4556 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
4557 while (<$log>) {
4558 if (/^${esc_color}commit -?($::sha1_short)/o) {
4559 my $cmt = $1;
4560 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
4561 $r_last = $c->{r};
4562 process_commit($c, $r_min, $r_max, \@k) or
4563 goto out;
4564 }
4565 $d = undef;
4566 $c = { c => $cmt };
4567 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
4568 get_author_info($c, $1, $2, $3);
4569 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
4570 # ignore
4571 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
4572 push @{$c->{raw}}, $_;
4573 } elsif (/^${esc_color}[ACRMDT]\t/) {
4574 # we could add $SVN->{svn_path} here, but that requires
4575 # remote access at the moment (repo_path_split)...
4576 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
4577 push @{$c->{changed}}, $_;
4578 } elsif (/^${esc_color}diff /o) {
4579 $d = 1;
4580 push @{$c->{diff}}, $_;
4581 } elsif ($d) {
4582 push @{$c->{diff}}, $_;
4583 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
4584 $esc_color*[\+\-]*$esc_color$/x) {
4585 $stat = 1;
4586 push @{$c->{stat}}, $_;
4587 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
4588 push @{$c->{stat}}, $_;
4589 $stat = undef;
4590 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
4591 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
4592 } elsif (s/^${esc_color} //o) {
4593 push @{$c->{l}}, $_;
4594 }
4595 }
4596 if ($c && defined $c->{r} && $c->{r} != $r_last) {
4597 $r_last = $c->{r};
4598 process_commit($c, $r_min, $r_max, \@k);
4599 }
4600 if (@k) {
4601 ($r_min, $r_max) = ($r_max, $r_min);
4602 process_commit($_, $r_min, $r_max) foreach reverse @k;
4603 }
4604out:
4605 close $log;
4606 print commit_log_separator unless $incremental || $oneline;
4607}
4608sub cmd_blame {
4610 my $path = pop;
4611 config_pager();
4613 run_pager();
4614 my ($fh, $ctx, $rev);
4616 if ($_git_format) {
4618 ($fh, $ctx) = command_output_pipe('blame', @_, $path);
4619 while (my $line = <$fh>) {
4620 if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
4621 # Uncommitted edits show up as a rev ID of
4622 # all zeros, which we can't look up with
4623 # cmt_metadata
4624 if ($1 !~ /^0+$/) {
4625 (undef, $rev, undef) =
4626 ::cmt_metadata($1);
4627 $rev = '0' if (!$rev);
4628 } else {
4629 $rev = '0';
4630 }
4631 $rev = sprintf('%-10s', $rev);
4632 $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
4633 }
4634 print $line;
4635 }
4636 } else {
4637 ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
4638 '--', $path);
4639 my ($sha1);
4640 my %authors;
4641 while (my $line = <$fh>) {
4642 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
4643 $sha1 = $1;
4644 (undef, $rev, undef) = ::cmt_metadata($1);
4645 $rev = '0' if (!$rev);
4646 }
4647 elsif ($line =~ /^author (.*)/) {
4648 $authors{$rev} = $1;
4649 $authors{$rev} =~ s/\s/_/g;
4650 }
4651 elsif ($line =~ /^\t(.*)$/) {
4652 printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
4653 }
4654 }
4655 }
4656 command_close_pipe($fh, $ctx);
4657}
4658package Git::SVN::Migration;
4660# these version numbers do NOT correspond to actual version numbers
4661# of git nor git-svn. They are just relative.
4662#
4663# v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
4664#
4665# v1 layout: .git/$id/info/url, refs/remotes/$id
4666#
4667# v2 layout: .git/svn/$id/info/url, refs/remotes/$id
4668#
4669# v3 layout: .git/svn/$id, refs/remotes/$id
4670# - info/url may remain for backwards compatibility
4671# - this is what we migrate up to this layout automatically,
4672# - this will be used by git svn init on single branches
4673# v3.1 layout (auto migrated):
4674# - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
4675# for backwards compatibility
4676#
4677# v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
4678# - this is only created for newly multi-init-ed
4679# repositories. Similar in spirit to the
4680# --use-separate-remotes option in git-clone (now default)
4681# - we do not automatically migrate to this (following
4682# the example set by core git)
4683#
4684# v5 layout: .rev_db.$UUID => .rev_map.$UUID
4685# - newer, more-efficient format that uses 24-bytes per record
4686# with no filler space.
4687# - use xxd -c24 < .rev_map.$UUID to view and debug
4688# - This is a one-way migration, repositories updated to the
4689# new format will not be able to use old git-svn without
4690# rebuilding the .rev_db. Rebuilding the rev_db is not
4691# possible if noMetadata or useSvmProps are set; but should
4692# be no problem for users that use the (sensible) defaults.
4693use strict;
4694use warnings;
4695use Carp qw/croak/;
4696use File::Path qw/mkpath/;
4697use File::Basename qw/dirname basename/;
4698use vars qw/$_minimize/;
4699sub migrate_from_v0 {
4701 my $git_dir = $ENV{GIT_DIR};
4702 return undef unless -d $git_dir;
4703 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
4704 my $migrated = 0;
4705 while (<$fh>) {
4706 chomp;
4707 my ($id, $orig_ref) = ($_, $_);
4708 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
4709 next unless -f "$git_dir/$id/info/url";
4710 my $new_ref = "refs/remotes/$id";
4711 if (::verify_ref("$new_ref^0")) {
4712 print STDERR "W: $orig_ref is probably an old ",
4713 "branch used by an ancient version of ",
4714 "git-svn.\n",
4715 "However, $new_ref also exists.\n",
4716 "We will not be able ",
4717 "to use this branch until this ",
4718 "ambiguity is resolved.\n";
4719 next;
4720 }
4721 print STDERR "Migrating from v0 layout...\n" if !$migrated;
4722 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
4723 command_noisy('update-ref', $new_ref, $orig_ref);
4724 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
4725 $migrated++;
4726 }
4727 command_close_pipe($fh, $ctx);
4728 print STDERR "Done migrating from v0 layout...\n" if $migrated;
4729 $migrated;
4730}
4731sub migrate_from_v1 {
4733 my $git_dir = $ENV{GIT_DIR};
4734 my $migrated = 0;
4735 return $migrated unless -d $git_dir;
4736 my $svn_dir = "$git_dir/svn";
4737 # just in case somebody used 'svn' as their $id at some point...
4739 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
4740 print STDERR "Migrating from a git-svn v1 layout...\n";
4742 mkpath([$svn_dir]);
4743 print STDERR "Data from a previous version of git-svn exists, but\n\t",
4744 "$svn_dir\n\t(required for this version ",
4745 "($::VERSION) of git-svn) does not exist.\n";
4746 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
4747 while (<$fh>) {
4748 my $x = $_;
4749 next unless $x =~ s#^refs/remotes/##;
4750 chomp $x;
4751 next unless -f "$git_dir/$x/info/url";
4752 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
4753 next unless $u;
4754 my $dn = dirname("$git_dir/svn/$x");
4755 mkpath([$dn]) unless -d $dn;
4756 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
4757 mkpath(["$git_dir/svn/svn"]);
4758 print STDERR " - $git_dir/$x/info => ",
4759 "$git_dir/svn/$x/info\n";
4760 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
4761 croak "$!: $x";
4762 # don't worry too much about these, they probably
4763 # don't exist with repos this old (save for index,
4764 # and we can easily regenerate that)
4765 foreach my $f (qw/unhandled.log index .rev_db/) {
4766 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
4767 }
4768 } else {
4769 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
4770 rename "$git_dir/$x", "$git_dir/svn/$x" or
4771 croak "$!: $x";
4772 }
4773 $migrated++;
4774 }
4775 command_close_pipe($fh, $ctx);
4776 print STDERR "Done migrating from a git-svn v1 layout\n";
4777 $migrated;
4778}
4779sub read_old_urls {
4781 my ($l_map, $pfx, $path) = @_;
4782 my @dir;
4783 foreach (<$path/*>) {
4784 if (-r "$_/info/url") {
4785 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
4786 my $ref_id = $pfx . basename $_;
4787 my $url = ::file_to_s("$_/info/url");
4788 $l_map->{$ref_id} = $url;
4789 } elsif (-d $_) {
4790 push @dir, $_;
4791 }
4792 }
4793 foreach (@dir) {
4794 my $x = $_;
4795 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
4796 read_old_urls($l_map, $x, $_);
4797 }
4798}
4799sub migrate_from_v2 {
4801 my @cfg = command(qw/config -l/);
4802 return if grep /^svn-remote\..+\.url=/, @cfg;
4803 my %l_map;
4804 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
4805 my $migrated = 0;
4806 foreach my $ref_id (sort keys %l_map) {
4808 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
4809 if ($@) {
4810 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
4811 }
4812 $migrated++;
4813 }
4814 $migrated;
4815}
4816sub minimize_connections {
4818 my $r = Git::SVN::read_all_remotes();
4819 my $new_urls = {};
4820 my $root_repos = {};
4821 foreach my $repo_id (keys %$r) {
4822 my $url = $r->{$repo_id}->{url} or next;
4823 my $fetch = $r->{$repo_id}->{fetch} or next;
4824 my $ra = Git::SVN::Ra->new($url);
4825 # skip existing cases where we already connect to the root
4827 if (($ra->{url} eq $ra->{repos_root}) ||
4828 ($ra->{repos_root} eq $repo_id)) {
4829 $root_repos->{$ra->{url}} = $repo_id;
4830 next;
4831 }
4832 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
4834 my $root_path = $ra->{url};
4835 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
4836 foreach my $path (keys %$fetch) {
4837 my $ref_id = $fetch->{$path};
4838 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
4839 # make sure we can read when connecting to
4841 # a higher level of a repository
4842 my ($last_rev, undef) = $gs->last_rev_commit;
4843 if (!defined $last_rev) {
4844 $last_rev = eval {
4845 $root_ra->get_latest_revnum;
4846 };
4847 next if $@;
4848 }
4849 my $new = $root_path;
4850 $new .= length $path ? "/$path" : '';
4851 eval {
4852 $root_ra->get_log([$new], $last_rev, $last_rev,
4853 0, 0, 1, sub { });
4854 };
4855 next if $@;
4856 $new_urls->{$ra->{repos_root}}->{$new} =
4857 { ref_id => $ref_id,
4858 old_repo_id => $repo_id,
4859 old_path => $path };
4860 }
4861 }
4862 my @emptied;
4864 foreach my $url (keys %$new_urls) {
4865 # see if we can re-use an existing [svn-remote "repo_id"]
4866 # instead of creating a(n ugly) new section:
4867 my $repo_id = $root_repos->{$url} || $url;
4868 my $fetch = $new_urls->{$url};
4870 foreach my $path (keys %$fetch) {
4871 my $x = $fetch->{$path};
4872 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
4873 my $pfx = "svn-remote.$x->{old_repo_id}";
4874 my $old_fetch = quotemeta("$x->{old_path}:".
4876 "refs/remotes/$x->{ref_id}");
4877 command_noisy(qw/config --unset/,
4878 "$pfx.fetch", '^'. $old_fetch . '$');
4879 delete $r->{$x->{old_repo_id}}->
4880 {fetch}->{$x->{old_path}};
4881 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
4882 command_noisy(qw/config --unset/,
4883 "$pfx.url");
4884 push @emptied, $x->{old_repo_id}
4885 }
4886 }
4887 }
4888 if (@emptied) {
4889 my $file = $ENV{GIT_CONFIG} || $ENV{GIT_CONFIG_LOCAL} ||
4890 "$ENV{GIT_DIR}/config";
4891 print STDERR <<EOF;
4892The following [svn-remote] sections in your config file ($file) are empty
4893and can be safely removed:
4894EOF
4895 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
4896 }
4897}
4898sub migration_check {
4900 migrate_from_v0();
4901 migrate_from_v1();
4902 migrate_from_v2();
4903 minimize_connections() if $_minimize;
4904}
4905package Git::IndexInfo;
4907use strict;
4908use warnings;
4909use Git qw/command_input_pipe command_close_pipe/;
4910sub new {
4912 my ($class) = @_;
4913 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
4914 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
4915}
4916sub remove {
4918 my ($self, $path) = @_;
4919 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
4920 return ++$self->{nr};
4921 }
4922 undef;
4923}
4924sub update {
4926 my ($self, $mode, $hash, $path) = @_;
4927 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
4928 return ++$self->{nr};
4929 }
4930 undef;
4931}
4932sub DESTROY {
4934 my ($self) = @_;
4935 command_close_pipe($self->{gui}, $self->{ctx});
4936}
4937package Git::SVN::GlobSpec;
4939use strict;
4940use warnings;
4941sub new {
4943 my ($class, $glob) = @_;
4944 my $re = $glob;
4945 $re =~ s!/+$!!g; # no need for trailing slashes
4946 $re =~ m!^([^*]*)(\*(?:/\*)*)([^*]*)$!;
4947 my $temp = $re;
4948 my ($left, $right) = ($1, $3);
4949 $re = $2;
4950 my $depth = $re =~ tr/*/*/;
4951 if ($depth != $temp =~ tr/*/*/) {
4952 die "Only one set of wildcard directories " .
4953 "(e.g. '*' or '*/*/*') is supported: '$glob'\n";
4954 }
4955 if ($depth == 0) {
4956 die "One '*' is needed for glob: '$glob'\n";
4957 }
4958 $re =~ s!\*!\[^/\]*!g;
4959 $re = quotemeta($left) . "($re)" . quotemeta($right);
4960 if (length $left && !($left =~ s!/+$!!g)) {
4961 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
4962 }
4963 if (length $right && !($right =~ s!^/+!!g)) {
4964 die "Missing leading '/' on right side of: '$glob' ($right)\n";
4965 }
4966 my $left_re = qr/^\/\Q$left\E(\/|$)/;
4967 bless { left => $left, right => $right, left_regex => $left_re,
4968 regex => qr/$re/, glob => $glob, depth => $depth }, $class;
4969}
4970sub full_path {
4972 my ($self, $path) = @_;
4973 return (length $self->{left} ? "$self->{left}/" : '') .
4974 $path . (length $self->{right} ? "/$self->{right}" : '');
4975}
4976__END__
4978Data structures:
4980$remotes = { # returned by read_all_remotes()
4983 'svn' => {
4984 # svn-remote.svn.url=https://svn.musicpd.org
4985 url => 'https://svn.musicpd.org',
4986 # svn-remote.svn.fetch=mpd/trunk:trunk
4987 fetch => {
4988 'mpd/trunk' => 'trunk',
4989 },
4990 # svn-remote.svn.tags=mpd/tags/*:tags/*
4991 tags => {
4992 path => {
4993 left => 'mpd/tags',
4994 right => '',
4995 regex => qr!mpd/tags/([^/]+)$!,
4996 glob => 'tags/*',
4997 },
4998 ref => {
4999 left => 'tags',
5000 right => '',
5001 regex => qr!tags/([^/]+)$!,
5002 glob => 'tags/*',
5003 },
5004 }
5005 }
5006};
5007$log_entry hashref as returned by libsvn_log_entry()
5009{
5010 log => 'whitespace-formatted log entry
5011', # trailing newline is preserved
5012 revision => '8', # integer
5013 date => '2004-02-24T17:01:44.108345Z', # commit date
5014 author => 'committer name'
5015};
5016# this is generated by generate_diff();
5019@mods = array of diff-index line hashes, each element represents one line
5020 of diff-index output
5021diff-index line ($m hash)
5023{
5024 mode_a => first column of diff-index output, no leading ':',
5025 mode_b => second column of diff-index output,
5026 sha1_b => sha1sum of the final blob,
5027 chg => change type [MCRADT],
5028 file_a => original file name of a file (iff chg is 'C' or 'R')
5029 file_b => new/current file name of a file (any chg)
5030}
5031;
5032# retval of read_url_paths{,_all}();
5034$l_map = {
5035 # repository root url
5036 'https://svn.musicpd.org' => {
5037 # repository path # GIT_SVN_ID
5038 'mpd/trunk' => 'trunk',
5039 'mpd/tags/0.11.5' => 'tags/0.11.5',
5040 },
5041}
5042Notes:
5044 I don't trust the each() function on unless I created %hash myself
5045 because the internal iterator may not have started at base.