b62cc067d8458597572161e34b73519a0e71805c
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
8 $_q $_authors %users/;
9$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
10$VERSION = '@@GIT_VERSION@@';
11$ENV{GIT_DIR} ||= '.git';
13$Git::SVN::default_repo_id = 'svn';
14$Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
15$Git::SVN::Log::TZ = $ENV{TZ};
17$ENV{TZ} = 'UTC';
18$| = 1; # unbuffer STDOUT
19sub fatal (@) { print STDERR @_; exit 1 }
21require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
22require SVN::Ra;
23require SVN::Delta;
24if ($SVN::Core::VERSION lt '1.1.0') {
25 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)\n";
26}
27push @Git::SVN::Ra::ISA, 'SVN::Ra';
28push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
29push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
30use Carp qw/croak/;
31use IO::File qw//;
32use File::Basename qw/dirname basename/;
33use File::Path qw/mkpath/;
34use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
35use IPC::Open3;
36use Git;
37BEGIN {
39 my $s;
40 foreach (qw/command command_oneline command_noisy command_output_pipe
41 command_input_pipe command_close_pipe/) {
42 $s .= "*SVN::Git::Editor::$_ = *SVN::Git::Fetcher::$_ = ".
43 "*Git::SVN::Migration::$_ = ".
44 "*Git::SVN::Log::$_ = *Git::SVN::$_ = *$_ = *Git::$_; ";
45 }
46 eval $s;
47}
48my ($SVN);
50$sha1 = qr/[a-f\d]{40}/;
52$sha1_short = qr/[a-f\d]{4,40}/;
53my ($_stdin, $_help, $_edit,
54 $_message, $_file,
55 $_template, $_shared,
56 $_version,
57 $_merge, $_strategy, $_dry_run,
58 $_prefix);
59$Git::SVN::_follow_parent = 1;
60my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
61 'config-dir=s' => \$Git::SVN::Ra::config_dir,
62 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache );
63my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
64 'authors-file|A=s' => \$_authors,
65 'repack:i' => \$Git::SVN::_repack,
66 'no-metadata' => \$Git::SVN::_no_metadata,
67 'use-svm-props|svm-props' => \$Git::SVN::_use_svm_props,
68 'quiet|q' => \$_q,
69 'repack-flags|repack-args|repack-opts=s' =>
70 \$Git::SVN::_repack_flags,
71 %remote_opts );
72my ($_trunk, $_tags, $_branches);
74my %multi_opts = ( 'trunk|T=s' => \$_trunk,
75 'tags|t=s' => \$_tags,
76 'branches|b=s' => \$_branches );
77my %init_opts = ( 'template=s' => \$_template, 'shared' => \$_shared );
78my %cmt_opts = ( 'edit|e' => \$_edit,
79 'rmdir' => \$SVN::Git::Editor::_rmdir,
80 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
81 'l=i' => \$SVN::Git::Editor::_rename_limit,
82 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
83);
84my %cmd = (
86 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
87 { 'revision|r=s' => \$_revision, %fc_opts } ],
88 init => [ \&cmd_init, "Initialize a repo for tracking" .
89 " (requires URL argument)",
90 \%init_opts ],
91 dcommit => [ \&cmd_dcommit,
92 'Commit several diffs to merge with upstream',
93 { 'merge|m|M' => \$_merge,
94 'strategy|s=s' => \$_strategy,
95 'dry-run|n' => \$_dry_run,
96 %cmt_opts, %fc_opts } ],
97 'set-tree' => [ \&cmd_set_tree,
98 "Set an SVN repository to a git tree-ish",
99 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
100 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
101 { 'revision|r=i' => \$_revision } ],
102 'multi-init' => [ \&cmd_multi_init,
103 'Initialize multiple trees (like git-svnimport)',
104 { %multi_opts, %init_opts, %remote_opts,
105 'revision|r=i' => \$_revision,
106 'prefix=s' => \$_prefix,
107 } ],
108 'multi-fetch' => [ \&cmd_multi_fetch,
109 'Fetch multiple trees (like git-svnimport)',
110 \%fc_opts ],
111 'migrate' => [ sub { },
112 # no-op, we automatically run this anyways,
113 'Migrate configuration/metadata/layout from
114 previous versions of git-svn',
115 \%remote_opts ],
116 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
117 { 'limit=i' => \$Git::SVN::Log::limit,
118 'revision|r=s' => \$_revision,
119 'verbose|v' => \$Git::SVN::Log::verbose,
120 'incremental' => \$Git::SVN::Log::incremental,
121 'oneline' => \$Git::SVN::Log::oneline,
122 'show-commit' => \$Git::SVN::Log::show_commit,
123 'non-recursive' => \$Git::SVN::Log::non_recursive,
124 'authors-file|A=s' => \$_authors,
125 'color' => \$Git::SVN::Log::color,
126 'pager=s' => \$Git::SVN::Log::pager,
127 } ],
128 'commit-diff' => [ \&cmd_commit_diff,
129 'Commit a diff between two trees',
130 { 'message|m=s' => \$_message,
131 'file|F=s' => \$_file,
132 'revision|r=s' => \$_revision,
133 %cmt_opts } ],
134);
135my $cmd;
137for (my $i = 0; $i < @ARGV; $i++) {
138 if (defined $cmd{$ARGV[$i]}) {
139 $cmd = $ARGV[$i];
140 splice @ARGV, $i, 1;
141 last;
142 }
143};
144my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
146read_repo_config(\%opts);
148my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
149 'minimize-connections' => \$Git::SVN::Migration::_minimize,
150 'id|i=s' => \$Git::SVN::default_ref_id,
151 'svn-remote|remote|R=s' => \$Git::SVN::default_repo_id);
152exit 1 if (!$rv && $cmd ne 'log');
153usage(0) if $_help;
155version() if $_version;
156usage(1) unless defined $cmd;
157load_authors() if $_authors;
158unless ($cmd =~ /^(?:init|multi-init|commit-diff)$/) {
159 Git::SVN::Migration::migration_check();
160}
161Git::SVN::init_vars();
162eval {
163 Git::SVN::verify_remotes_sanity();
164 $cmd{$cmd}->[0]->(@ARGV);
165};
166fatal $@ if $@;
167exit 0;
168####################### primary functions ######################
170sub usage {
171 my $exit = shift || 0;
172 my $fd = $exit ? \*STDERR : \*STDOUT;
173 print $fd <<"";
174git-svn - bidirectional operations between a single Subversion tree and git
175Usage: $0 <command> [options] [arguments]\n
176 print $fd "Available commands:\n" unless $cmd;
178 foreach (sort keys %cmd) {
180 next if $cmd && $cmd ne $_;
181 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
182 foreach (keys %{$cmd{$_}->[2]}) {
183 # prints out arguments as they should be passed:
184 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
185 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
186 "--$_" : "-$_" }
187 split /\|/,$_)," $x\n";
188 }
189 }
190 print $fd <<"";
191\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
192arbitrary identifier if you're tracking multiple SVN branches/repositories in
193one git repository and want to keep them separate. See git-svn(1) for more
194information.
195 exit $exit;
197}
198sub version {
200 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
201 exit 0;
202}
203sub do_git_init_db {
205 unless (-d $ENV{GIT_DIR}) {
206 my @init_db = ('init');
207 push @init_db, "--template=$_template" if defined $_template;
208 push @init_db, "--shared" if defined $_shared;
209 command_noisy(@init_db);
210 }
211}
212sub cmd_init {
214 my $url = shift or die "SVN repository location required " .
215 "as a command-line argument\n";
216 if (my $repo_path = shift) {
217 unless (-d $repo_path) {
218 mkpath([$repo_path]);
219 }
220 chdir $repo_path or croak $!;
221 $ENV{GIT_DIR} = $repo_path . "/.git";
222 }
223 do_git_init_db();
224 Git::SVN->init($url);
226}
227sub cmd_fetch {
229 if (@_) {
230 die "Additional fetch arguments are no longer supported.\n",
231 "Use --follow-parent if you have moved/copied directories
232 instead.\n";
233 }
234 my $gs = Git::SVN->new;
235 $gs->fetch(parse_revision_argument());
236 if ($gs->{last_commit} && !verify_ref('refs/heads/master^0')) {
237 command_noisy(qw(update-ref refs/heads/master),
238 $gs->{last_commit});
239 }
240}
241sub cmd_set_tree {
243 my (@commits) = @_;
244 if ($_stdin || !@commits) {
245 print "Reading from stdin...\n";
246 @commits = ();
247 while (<STDIN>) {
248 if (/\b($sha1_short)\b/o) {
249 unshift @commits, $1;
250 }
251 }
252 }
253 my @revs;
254 foreach my $c (@commits) {
255 my @tmp = command('rev-parse',$c);
256 if (scalar @tmp == 1) {
257 push @revs, $tmp[0];
258 } elsif (scalar @tmp > 1) {
259 push @revs, reverse(command('rev-list',@tmp));
260 } else {
261 fatal "Failed to rev-parse $c\n";
262 }
263 }
264 my $gs = Git::SVN->new;
265 my ($r_last, $cmt_last) = $gs->last_rev_commit;
266 $gs->fetch;
267 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
268 fatal "There are new revisions that were fetched ",
269 "and need to be merged (or acknowledged) ",
270 "before committing.\nlast rev: $r_last\n",
271 " current: $gs->{last_rev}\n";
272 }
273 $gs->set_tree($_) foreach @revs;
274 print "Done committing ",scalar @revs," revisions to SVN\n";
275}
276sub cmd_dcommit {
278 my $head = shift;
279 my $gs = Git::SVN->new;
280 $head ||= 'HEAD';
281 my @refs = command(qw/rev-list --no-merges/, $gs->refname."..$head");
282 my $last_rev;
283 foreach my $d (reverse @refs) {
284 if (!verify_ref("$d~1")) {
285 fatal "Commit $d\n",
286 "has no parent commit, and therefore ",
287 "nothing to diff against.\n",
288 "You should be working from a repository ",
289 "originally created by git-svn\n";
290 }
291 unless (defined $last_rev) {
292 (undef, $last_rev, undef) = cmt_metadata("$d~1");
293 unless (defined $last_rev) {
294 fatal "Unable to extract revision information ",
295 "from commit $d~1\n";
296 }
297 }
298 if ($_dry_run) {
299 print "diff-tree $d~1 $d\n";
300 } else {
301 my %ed_opts = ( r => $last_rev,
302 log => get_commit_entry($d)->{log},
303 ra => $gs->ra,
304 tree_a => "$d~1",
305 tree_b => $d,
306 editor_cb => sub {
307 print "Committed r$_[0]\n";
308 $last_rev = $_[0]; },
309 svn_path => $gs->{path} );
310 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
311 print "No changes\n$d~1 == $d\n";
312 }
313 }
314 }
315 return if $_dry_run;
316 $gs->fetch;
317 # we always want to rebase against the current HEAD, not any
318 # head that was passed to us
319 my @diff = command('diff-tree', 'HEAD', $gs->refname, '--');
320 my @finish;
321 if (@diff) {
322 @finish = qw/rebase/;
323 push @finish, qw/--merge/ if $_merge;
324 push @finish, "--strategy=$_strategy" if $_strategy;
325 print STDERR "W: HEAD and ", $gs->refname, " differ, ",
326 "using @finish:\n", "@diff";
327 } else {
328 print "No changes between current HEAD and ",
329 $gs->refname, "\nResetting to the latest ",
330 $gs->refname, "\n";
331 @finish = qw/reset --mixed/;
332 }
333 command_noisy(@finish, $gs->refname);
334}
335sub cmd_show_ignore {
337 my $gs = Git::SVN->new;
338 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
339 $gs->traverse_ignore(\*STDOUT, '', $r);
340}
341sub cmd_multi_init {
343 my $url = shift;
344 unless (defined $_trunk || defined $_branches || defined $_tags) {
345 usage(1);
346 }
347 do_git_init_db();
348 $_prefix = '' unless defined $_prefix;
349 $url =~ s#/+$## if defined $url;
350 if (defined $_trunk) {
351 my $trunk_ref = $_prefix . 'trunk';
352 # try both old-style and new-style lookups:
353 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
354 unless ($gs_trunk) {
355 my ($trunk_url, $trunk_path) =
356 complete_svn_url($url, $_trunk);
357 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
358 undef, $trunk_ref);
359 }
360 }
361 return unless defined $_branches || defined $_tags;
362 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
363 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
364 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
365}
366sub cmd_multi_fetch {
368 my $remotes = Git::SVN::read_all_remotes();
369 foreach my $repo_id (sort keys %$remotes) {
370 if ($remotes->{$repo_id}->{url} &&
371 $remotes->{$repo_id}->{fetch}) {
372 Git::SVN::fetch_all($repo_id, $remotes);
373 }
374 }
375}
376# this command is special because it requires no metadata
378sub cmd_commit_diff {
379 my ($ta, $tb, $url) = @_;
380 my $usage = "Usage: $0 commit-diff -r<revision> ".
381 "<tree-ish> <tree-ish> [<URL>]\n";
382 fatal($usage) if (!defined $ta || !defined $tb);
383 my $svn_path;
384 if (!defined $url) {
385 my $gs = eval { Git::SVN->new };
386 if (!$gs) {
387 fatal("Needed URL or usable git-svn --id in ",
388 "the command-line\n", $usage);
389 }
390 $url = $gs->{url};
391 $svn_path = $gs->{path};
392 }
393 unless (defined $_revision) {
394 fatal("-r|--revision is a required argument\n", $usage);
395 }
396 if (defined $_message && defined $_file) {
397 fatal("Both --message/-m and --file/-F specified ",
398 "for the commit message.\n",
399 "I have no idea what you mean\n");
400 }
401 if (defined $_file) {
402 $_message = file_to_s($_file);
403 } else {
404 $_message ||= get_commit_entry($tb)->{log};
405 }
406 my $ra ||= Git::SVN::Ra->new($url);
407 $svn_path ||= $ra->{svn_path};
408 my $r = $_revision;
409 if ($r eq 'HEAD') {
410 $r = $ra->get_latest_revnum;
411 } elsif ($r !~ /^\d+$/) {
412 die "revision argument: $r not understood by git-svn\n";
413 }
414 my %ed_opts = ( r => $r,
415 log => $_message,
416 ra => $ra,
417 tree_a => $ta,
418 tree_b => $tb,
419 editor_cb => sub { print "Committed r$_[0]\n" },
420 svn_path => $svn_path );
421 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
422 print "No changes\n$ta == $tb\n";
423 }
424}
425########################### utility functions #########################
427sub parse_revision_argument {
429 if (!defined $_revision || $_revision eq 'BASE:HEAD') {
430 return (undef, undef);
431 }
432 return ($1, $2) if ($_revision =~ /^(\d+):(\d+)$/);
433 return ($_revision, $_revision) if ($_revision =~ /^\d+$/);
434 return (undef, $1) if ($_revision =~ /^BASE:(\d+)$/);
435 return ($1, undef) if ($_revision =~ /^(\d+):HEAD$/);
436 die "revision argument: $_revision not understood by git-svn\n",
437 "Try using the command-line svn client instead\n";
438}
439sub complete_svn_url {
441 my ($url, $path) = @_;
442 $path =~ s#/+$##;
443 if ($path !~ m#^[a-z\+]+://#) {
444 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
445 fatal("E: '$path' is not a complete URL ",
446 "and a separate URL is not specified\n");
447 }
448 return ($url, $path);
449 }
450 return ($path, '');
451}
452sub complete_url_ls_init {
454 my ($ra, $repo_path, $switch, $pfx) = @_;
455 unless ($repo_path) {
456 print STDERR "W: $switch not specified\n";
457 return;
458 }
459 $repo_path =~ s#/+$##;
460 if ($repo_path =~ m#^[a-z\+]+://#) {
461 $ra = Git::SVN::Ra->new($repo_path);
462 $repo_path = '';
463 } else {
464 $repo_path =~ s#^/+##;
465 unless ($ra) {
466 fatal("E: '$repo_path' is not a complete URL ",
467 "and a separate URL is not specified\n");
468 }
469 }
470 my $r = defined $_revision ? $_revision : $ra->get_latest_revnum;
471 my ($dirent, undef, undef) = $ra->get_dir($repo_path, $r);
472 my $url = $ra->{url};
473 my $remote_id;
474 my $remote_path;
475 foreach my $d (sort keys %$dirent) {
476 next if ($dirent->{$d}->kind != $SVN::Node::dir);
477 my $path = "$repo_path/$d";
478 my $ref = "$pfx$d";
479 my $gs = eval { Git::SVN->new($ref) };
480 # don't try to init already existing refs
481 unless ($gs) {
482 print "init $url/$path => $ref\n";
483 $gs = Git::SVN->init($url, $path, undef, $ref, 1);
484 }
485 if ($gs) {
486 $remote_id = $gs->{repo_id};
487 last;
488 }
489 }
490 if (defined $remote_id) {
491 $remote_path = "$ra->{svn_path}/$repo_path/*";
492 $remote_path =~ s#/+#/#g;
493 $remote_path =~ s#^/##g;
494 my ($n) = ($switch =~ /^--(\w+)/);
495 if (length $pfx && $pfx !~ m#/$#) {
496 die "--prefix='$pfx' must have a trailing slash '/'\n";
497 }
498 command_noisy('config', "svn-remote.$remote_id.$n",
499 "$remote_path:refs/remotes/$pfx*");
500 }
501}
502sub verify_ref {
504 my ($ref) = @_;
505 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
506 { STDERR => 0 }); };
507}
508sub get_tree_from_treeish {
510 my ($treeish) = @_;
511 # $treeish can be a symbolic ref, too:
512 my $type = command_oneline(qw/cat-file -t/, $treeish);
513 my $expected;
514 while ($type eq 'tag') {
515 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
516 }
517 if ($type eq 'commit') {
518 $expected = (grep /^tree /, command(qw/cat-file commit/,
519 $treeish))[0];
520 ($expected) = ($expected =~ /^tree ($sha1)$/o);
521 die "Unable to get tree from $treeish\n" unless $expected;
522 } elsif ($type eq 'tree') {
523 $expected = $treeish;
524 } else {
525 die "$treeish is a $type, expected tree, tag or commit\n";
526 }
527 return $expected;
528}
529sub get_commit_entry {
531 my ($treeish) = shift;
532 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
533 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
534 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
535 open my $log_fh, '>', $commit_editmsg or croak $!;
536 my $type = command_oneline(qw/cat-file -t/, $treeish);
538 if ($type eq 'commit' || $type eq 'tag') {
539 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
540 $type, $treeish);
541 my $in_msg = 0;
542 while (<$msg_fh>) {
543 if (!$in_msg) {
544 $in_msg = 1 if (/^\s*$/);
545 } elsif (/^git-svn-id: /) {
546 # skip this for now, we regenerate the
547 # correct one on re-fetch anyways
548 # TODO: set *:merge properties or like...
549 } else {
550 print $log_fh $_ or croak $!;
551 }
552 }
553 command_close_pipe($msg_fh, $ctx);
554 }
555 close $log_fh or croak $!;
556 if ($_edit || ($type eq 'tree')) {
558 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
559 # TODO: strip out spaces, comments, like git-commit.sh
560 system($editor, $commit_editmsg);
561 }
562 rename $commit_editmsg, $commit_msg or croak $!;
563 open $log_fh, '<', $commit_msg or croak $!;
564 { local $/; chomp($log_entry{log} = <$log_fh>); }
565 close $log_fh or croak $!;
566 unlink $commit_msg;
567 \%log_entry;
568}
569sub s_to_file {
571 my ($str, $file, $mode) = @_;
572 open my $fd,'>',$file or croak $!;
573 print $fd $str,"\n" or croak $!;
574 close $fd or croak $!;
575 chmod ($mode &~ umask, $file) if (defined $mode);
576}
577sub file_to_s {
579 my $file = shift;
580 open my $fd,'<',$file or croak "$!: file: $file\n";
581 local $/;
582 my $ret = <$fd>;
583 close $fd or croak $!;
584 $ret =~ s/\s*$//s;
585 return $ret;
586}
587# '<svn username> = real-name <email address>' mapping based on git-svnimport:
589sub load_authors {
590 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
591 my $log = $cmd eq 'log';
592 while (<$authors>) {
593 chomp;
594 next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
595 my ($user, $name, $email) = ($1, $2, $3);
596 if ($log) {
597 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
598 } else {
599 $users{$user} = [$name, $email];
600 }
601 }
602 close $authors or croak $!;
603}
604# convert GetOpt::Long specs for use by git-config
606sub read_repo_config {
607 return unless -d $ENV{GIT_DIR};
608 my $opts = shift;
609 foreach my $o (keys %$opts) {
610 my $v = $opts->{$o};
611 my ($key) = ($o =~ /^([a-z\-]+)/);
612 $key =~ s/-//g;
613 my $arg = 'git-config';
614 $arg .= ' --int' if ($o =~ /[:=]i$/);
615 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
616 if (ref $v eq 'ARRAY') {
617 chomp(my @tmp = `$arg --get-all svn.$key`);
618 @$v = @tmp if @tmp;
619 } else {
620 chomp(my $tmp = `$arg --get svn.$key`);
621 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
622 $$v = $tmp;
623 }
624 }
625 }
626}
627sub extract_metadata {
629 my $id = shift or return (undef, undef, undef);
630 my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
631 \s([a-f\d\-]+)$/x);
632 if (!defined $rev || !$uuid || !$url) {
633 # some of the original repositories I made had
634 # identifiers like this:
635 ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
636 }
637 return ($url, $rev, $uuid);
638}
639sub cmt_metadata {
641 return extract_metadata((grep(/^git-svn-id: /,
642 command(qw/cat-file commit/, shift)))[-1]);
643}
644package Git::SVN;
646use strict;
647use warnings;
648use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
649 $_repack $_repack_flags $_use_svm_props/;
650use Carp qw/croak/;
651use File::Path qw/mkpath/;
652use File::Copy qw/copy/;
653use IPC::Open3;
654my $_repack_nr;
656# properties that we do not log:
657my %SKIP_PROP;
658BEGIN {
659 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
660 svn:special svn:executable
661 svn:entry:committed-rev
662 svn:entry:last-author
663 svn:entry:uuid
664 svn:entry:committed-date/;
665 # some options are read globally, but can be overridden locally
667 # per [svn-remote "..."] section. Command-line options will *NOT*
668 # override options set in an [svn-remote "..."] section
669 my $e;
670 foreach (qw/follow_parent no_metadata use_svm_props/) {
671 my $key = $_;
672 $key =~ tr/_//d;
673 $e .= "sub $_ {
674 my (\$self) = \@_;
675 return \$self->{-$_} if exists \$self->{-$_};
676 my \$k = \"svn-remote.\$self->{repo_id}\.$key\";
677 eval { command_oneline(qw/config --get/, \$k) };
678 if (\$@) {
679 \$self->{-$_} = \$Git::SVN::_$_;
680 } else {
681 my \$v = command_oneline(qw/config --bool/,\$k);
682 \$self->{-$_} = \$v eq 'false' ? 0 : 1;
683 }
684 return \$self->{-$_} }\n";
685 }
686 $e .= "1;\n";
687 eval $e or die $@;
688}
689my %LOCKFILES;
691END { unlink keys %LOCKFILES if %LOCKFILES }
692sub resolve_local_globs {
694 my ($url, $fetch, $glob_spec) = @_;
695 return unless defined $glob_spec;
696 my $ref = $glob_spec->{ref};
697 my $path = $glob_spec->{path};
698 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
699 next unless m#^refs/remotes/$ref->{regex}$#;
700 my $p = $1;
701 my $pathname = $path->full_path($p);
702 my $refname = $ref->full_path($p);
703 if (my $existing = $fetch->{$pathname}) {
704 if ($existing ne $refname) {
705 die "Refspec conflict:\n",
706 "existing: refs/remotes/$existing\n",
707 " globbed: refs/remotes/$refname\n";
708 }
709 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
710 $u =~ s!^\Q$url\E(/|$)!! or die
711 "refs/remotes/$refname: '$url' not found in '$u'\n";
712 if ($pathname ne $u) {
713 warn "W: Refspec glob conflict ",
714 "(ref: refs/remotes/$refname):\n",
715 "expected path: $pathname\n",
716 " real path: $u\n",
717 "Continuing ahead with $u\n";
718 next;
719 }
720 } else {
721 $fetch->{$pathname} = $refname;
722 }
723 }
724}
725sub fetch_all {
727 my ($repo_id, $remotes) = @_;
728 my $remote = $remotes->{$repo_id};
729 my $fetch = $remote->{fetch};
730 my $url = $remote->{url};
731 my (@gs, @globs);
732 my $ra = Git::SVN::Ra->new($url);
733 my $uuid = $ra->uuid;
734 my $head = $ra->get_latest_revnum;
735 my $base = $head;
736 # read the max revs for wildcard expansion (branches/*, tags/*)
738 foreach my $t (qw/branches tags/) {
739 defined $remote->{$t} or next;
740 push @globs, $remote->{$t};
741 my $max_rev = eval { tmp_config(qw/--int --get/,
742 "svn-remote.$repo_id.${t}-maxRev") };
743 if (defined $max_rev && ($max_rev < $base)) {
744 $base = $max_rev;
745 }
746 }
747 foreach my $p (sort keys %$fetch) {
749 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
750 my $lr = $gs->rev_db_max;
751 if (defined $lr) {
752 $base = $lr if ($lr < $base);
753 }
754 push @gs, $gs;
755 }
756 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
757}
758sub read_all_remotes {
760 my $r = {};
761 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
762 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
763 $r->{$1}->{fetch}->{$2} = $3;
764 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
765 $r->{$1}->{url} = $2;
766 } elsif (m!^(.+)\.(branches|tags)=
767 (.*):refs/remotes/(.+)\s*$/!x) {
768 my ($p, $g) = ($3, $4);
769 my $rs = $r->{$1}->{$2} = {
770 t => $2,
771 remote => $1,
772 path => Git::SVN::GlobSpec->new($p),
773 ref => Git::SVN::GlobSpec->new($g) };
774 if (length($rs->{ref}->{right}) != 0) {
775 die "The '*' glob character must be the last ",
776 "character of '$g'\n";
777 }
778 }
779 }
780 $r;
781}
782sub init_vars {
784 if (defined $_repack) {
785 $_repack = 1000 if ($_repack <= 0);
786 $_repack_nr = $_repack;
787 $_repack_flags ||= '-d';
788 }
789}
790sub verify_remotes_sanity {
792 return unless -d $ENV{GIT_DIR};
793 my %seen;
794 foreach (command(qw/config -l/)) {
795 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
796 if ($seen{$1}) {
797 die "Remote ref refs/remote/$1 is tracked by",
798 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
799 "Please resolve this ambiguity in ",
800 "your git configuration file before ",
801 "continuing\n";
802 }
803 $seen{$1} = $_;
804 }
805 }
806}
807# we allow more chars than remotes2config.sh...
809sub sanitize_remote_name {
810 my ($name) = @_;
811 $name =~ tr{A-Za-z0-9:,/+-}{.}c;
812 $name;
813}
814sub find_existing_remote {
816 my ($url, $remotes) = @_;
817 my $existing;
818 foreach my $repo_id (keys %$remotes) {
819 my $u = $remotes->{$repo_id}->{url} or next;
820 next if $u ne $url;
821 $existing = $repo_id;
822 last;
823 }
824 $existing;
825}
826sub init_remote_config {
828 my ($self, $url, $no_write) = @_;
829 $url =~ s!/+$!!; # strip trailing slash
830 my $r = read_all_remotes();
831 my $existing = find_existing_remote($url, $r);
832 if ($existing) {
833 unless ($no_write) {
834 print STDERR "Using existing ",
835 "[svn-remote \"$existing\"]\n";
836 }
837 $self->{repo_id} = $existing;
838 } else {
839 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
840 $existing = find_existing_remote($min_url, $r);
841 if ($existing) {
842 unless ($no_write) {
843 print STDERR "Using existing ",
844 "[svn-remote \"$existing\"]\n";
845 }
846 $self->{repo_id} = $existing;
847 }
848 if ($min_url ne $url) {
849 unless ($no_write) {
850 print STDERR "Using higher level of URL: ",
851 "$url => $min_url\n";
852 }
853 my $old_path = $self->{path};
854 $self->{path} = $url;
855 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
856 if (length $old_path) {
857 $self->{path} .= "/$old_path";
858 }
859 $url = $min_url;
860 }
861 }
862 my $orig_url;
863 if (!$existing) {
864 # verify that we aren't overwriting anything:
865 $orig_url = eval {
866 command_oneline('config', '--get',
867 "svn-remote.$self->{repo_id}.url")
868 };
869 if ($orig_url && ($orig_url ne $url)) {
870 die "svn-remote.$self->{repo_id}.url already set: ",
871 "$orig_url\nwanted to set to: $url\n";
872 }
873 }
874 my ($xrepo_id, $xpath) = find_ref($self->refname);
875 if (defined $xpath) {
876 die "svn-remote.$xrepo_id.fetch already set to track ",
877 "$xpath:refs/remotes/", $self->refname, "\n";
878 }
879 unless ($no_write) {
880 command_noisy('config',
881 "svn-remote.$self->{repo_id}.url", $url);
882 command_noisy('config', '--add',
883 "svn-remote.$self->{repo_id}.fetch",
884 "$self->{path}:".$self->refname);
885 }
886 $self->{url} = $url;
887}
888sub init {
890 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
891 my $self = _new($class, $repo_id, $ref_id, $path);
892 if (defined $url) {
893 $self->init_remote_config($url, $no_write);
894 }
895 $self;
896}
897sub find_ref {
899 my ($ref_id) = @_;
900 foreach (command(qw/config -l/)) {
901 next unless m!^svn-remote\.(.+)\.fetch=
902 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
903 my ($repo_id, $path, $ref) = ($1, $2, $3);
904 if ($ref eq $ref_id) {
905 $path = '' if ($path =~ m#^\./?#);
906 return ($repo_id, $path);
907 }
908 }
909 (undef, undef, undef);
910}
911sub new {
913 my ($class, $ref_id, $repo_id, $path) = @_;
914 if (defined $ref_id && !defined $repo_id && !defined $path) {
915 ($repo_id, $path) = find_ref($ref_id);
916 if (!defined $repo_id) {
917 die "Could not find a \"svn-remote.*.fetch\" key ",
918 "in the repository configuration matching: ",
919 "refs/remotes/$ref_id\n";
920 }
921 }
922 my $self = _new($class, $repo_id, $ref_id, $path);
923 if (!defined $self->{path} || !length $self->{path}) {
924 my $fetch = command_oneline('config', '--get',
925 "svn-remote.$repo_id.fetch",
926 ":refs/remotes/$ref_id\$") or
927 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
928 "\":refs/remotes/$ref_id\$\" in config\n";
929 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
930 }
931 $self->{url} = command_oneline('config', '--get',
932 "svn-remote.$repo_id.url") or
933 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
934 if (-z $self->{db_path} && ::verify_ref($self->refname.'^0')) {
935 $self->rebuild;
936 }
937 $self;
938}
939sub refname { "refs/remotes/$_[0]->{ref_id}" }
941sub set_svm_vars {
943 my ($self, $ra) = @_;
944 my $section = "svn-remote.$self->{repo_id}";
945 # see if we have it in our config, first:
947 eval {
948 $self->{svm} = {
949 source => tmp_config('--get', "$section.svm-source"),
950 uuid => tmp_config('--get', "$section.svm-uuid"),
951 }
952 };
953 return $ra if ($self->{svm}->{source} && $self->{svm}->{uuid});
954 # nope, make sure we're connected to the repository root:
956 if ($ra->{repos_root} ne $self->{url}) {
957 $ra = Git::SVN::Ra->new($ra->{repos_root});
958 }
959 my $r = $ra->get_latest_revnum;
960 my ($props) = ($ra->get_dir('', $r))[2];
961 if (my $src = $props->{'svm:source'}) {
962 # don't know what a '!' is there for, also the
963 # username is of no interest
964 $src =~ s{!$}{};
965 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
966 tmp_config('--add', "$section.svm-source", $src);
967 my $uuid = $props->{'svm:uuid'};
969 $uuid =~ m{^[0-9a-f\-]{30,}$}
970 or die "doesn't look right - svm:uuid is '$uuid'\n";
971 tmp_config('--add', "$section.svm-uuid", $uuid);
972 $self->{svm} = { source => $src , uuid => $uuid };
974 }
975 if ($ra->{repos_root} ne $self->{url}) {
976 $ra = Git::SVN::Ra->new($self->{url});
977 }
978 $ra;
979}
980sub ra {
982 my ($self) = shift;
983 my $ra = Git::SVN::Ra->new($self->{url});
984 if ($self->use_svm_props && !$self->{svm}) {
985 if ($self->no_metadata) {
986 die "Can't have both --no-metadata and ",
987 "--use-svm-props options set!\n";
988 }
989 $ra = $self->set_svm_vars($ra);
990 $self->{-want_revprops} = 1;
991 }
992 $ra;
993}
994sub rel_path {
996 my ($self) = @_;
997 my $repos_root = $self->ra->{repos_root};
998 return $self->{path} if ($self->{url} eq $repos_root);
999 die "BUG: rel_path failed! repos_root: $repos_root, Ra URL: ",
1000 $self->ra->{url}, " path: $self->{path}, URL: $self->{url}\n";
1001}
1002sub traverse_ignore {
1004 my ($self, $fh, $path, $r) = @_;
1005 $path =~ s#^/+##g;
1006 my $ra = $self->ra;
1007 my ($dirent, undef, $props) = $ra->get_dir($path, $r);
1008 my $p = $path;
1009 $p =~ s#^\Q$ra->{svn_path}\E/##;
1010 print $fh length $p ? "\n# $p\n" : "\n# /\n";
1011 if (my $s = $props->{'svn:ignore'}) {
1012 $s =~ s/[\r\n]+/\n/g;
1013 chomp $s;
1014 if (length $p == 0) {
1015 $s =~ s#\n#\n/$p#g;
1016 print $fh "/$s\n";
1017 } else {
1018 $s =~ s#\n#\n/$p/#g;
1019 print $fh "/$p/$s\n";
1020 }
1021 }
1022 foreach (sort keys %$dirent) {
1023 next if $dirent->{$_}->kind != $SVN::Node::dir;
1024 $self->traverse_ignore($fh, "$path/$_", $r);
1025 }
1026}
1027sub last_rev { ($_[0]->last_rev_commit)[0] }
1029sub last_commit { ($_[0]->last_rev_commit)[1] }
1030# returns the newest SVN revision number and newest commit SHA1
1032sub last_rev_commit {
1033 my ($self) = @_;
1034 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1035 return ($self->{last_rev}, $self->{last_commit});
1036 }
1037 my $c = ::verify_ref($self->refname.'^0');
1038 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1039 my $rev = (::cmt_metadata($c))[1];
1040 if (defined $rev) {
1041 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1042 return ($rev, $c);
1043 }
1044 }
1045 my $offset = -41; # from tail
1046 my $rl;
1047 open my $fh, '<', $self->{db_path} or
1048 croak "$self->{db_path} not readable: $!\n";
1049 sysseek($fh, $offset, 2); # don't care for errors
1050 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1051 chomp $rl;
1052 while (('0' x40) eq $rl && sysseek($fh, 0, 1) != 0) {
1053 $offset -= 41;
1054 sysseek($fh, $offset, 2); # don't care for errors
1055 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1056 chomp $rl;
1057 }
1058 if ($c && $c ne $rl) {
1059 die "$self->{db_path} and ", $self->refname,
1060 " inconsistent!:\n$c != $rl\n";
1061 }
1062 my $rev = sysseek($fh, 0, 1) or croak $!;
1063 $rev = ($rev - 41) / 41;
1064 close $fh or croak $!;
1065 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1066 return ($rev, $c);
1067}
1068sub get_fetch_range {
1070 my ($self, $min, $max) = @_;
1071 $max ||= $self->ra->get_latest_revnum;
1072 $min ||= $self->rev_db_max;
1073 (++$min, $max);
1074}
1075sub tmp_config {
1077 my (@args) = @_;
1078 my $config = "$ENV{GIT_DIR}/svn/config";
1079 unless (-f $config) {
1080 open my $fh, '>', $config or
1081 die "Can't open $config: $!\n";
1082 print $fh "; This file is used internally by git-svn\n" or
1083 die "Couldn't write to $config: $!\n";
1084 print $fh "; You should not have to edit it\n" or
1085 die "Couldn't write to $config: $!\n";
1086 close $fh or die "Couldn't close $config: $!\n";
1087 }
1088 my $old_config = $ENV{GIT_CONFIG};
1089 $ENV{GIT_CONFIG} = $config;
1090 $@ = undef;
1091 my @ret = eval { command('config', @args) };
1092 my $err = $@;
1093 if (defined $old_config) {
1094 $ENV{GIT_CONFIG} = $old_config;
1095 } else {
1096 delete $ENV{GIT_CONFIG};
1097 }
1098 die $err if $err;
1099 wantarray ? @ret : $ret[0];
1100}
1101sub tmp_index_do {
1103 my ($self, $sub) = @_;
1104 my $old_index = $ENV{GIT_INDEX_FILE};
1105 $ENV{GIT_INDEX_FILE} = $self->{index};
1106 $@ = undef;
1107 my @ret = eval { &$sub };
1108 my $err = $@;
1109 if (defined $old_index) {
1110 $ENV{GIT_INDEX_FILE} = $old_index;
1111 } else {
1112 delete $ENV{GIT_INDEX_FILE};
1113 }
1114 die $err if $err;
1115 wantarray ? @ret : $ret[0];
1116}
1117sub assert_index_clean {
1119 my ($self, $treeish) = @_;
1120 $self->tmp_index_do(sub {
1122 command_noisy('read-tree', $treeish) unless -e $self->{index};
1123 my $x = command_oneline('write-tree');
1124 my ($y) = (command(qw/cat-file commit/, $treeish) =~
1125 /^tree ($::sha1)/mo);
1126 if ($y ne $x) {
1127 unlink $self->{index} or croak $!;
1128 command_noisy('read-tree', $treeish);
1129 }
1130 $x = command_oneline('write-tree');
1131 if ($y ne $x) {
1132 ::fatal "trees ($treeish) $y != $x\n",
1133 "Something is seriously wrong...\n";
1134 }
1135 });
1136}
1137sub get_commit_parents {
1139 my ($self, $log_entry) = @_;
1140 my (%seen, @ret, @tmp);
1141 # legacy support for 'set-tree'; this is only used by set_tree_cb:
1142 if (my $ip = $self->{inject_parents}) {
1143 if (my $commit = delete $ip->{$log_entry->{revision}}) {
1144 push @tmp, $commit;
1145 }
1146 }
1147 if (my $cur = ::verify_ref($self->refname.'^0')) {
1148 push @tmp, $cur;
1149 }
1150 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
1151 while (my $p = shift @tmp) {
1152 next if $seen{$p};
1153 $seen{$p} = 1;
1154 push @ret, $p;
1155 # MAXPARENT is defined to 16 in commit-tree.c:
1156 last if @ret >= 16;
1157 }
1158 if (@tmp) {
1159 die "r$log_entry->{revision}: No room for parents:\n\t",
1160 join("\n\t", @tmp), "\n";
1161 }
1162 @ret;
1163}
1164sub full_url {
1166 my ($self) = @_;
1167 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
1168}
1169sub do_git_commit {
1171 my ($self, $log_entry) = @_;
1172 my $lr = $self->last_rev;
1173 if (defined $lr && $lr >= $log_entry->{revision}) {
1174 die "Last fetched revision of ", $self->refname,
1175 " was r$lr, but we are about to fetch: ",
1176 "r$log_entry->{revision}!\n";
1177 }
1178 if (my $c = $self->rev_db_get($log_entry->{revision})) {
1179 croak "$log_entry->{revision} = $c already exists! ",
1180 "Why are we refetching it?\n";
1181 }
1182 my $author = $log_entry->{author};
1183 my ($name, $email) = (defined $::users{$author} ? @{$::users{$author}}
1184 : ($author, "$author\@".$self->ra->uuid));
1185 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $name;
1186 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} = $email;
1187 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
1188 my $tree = $log_entry->{tree};
1190 if (!defined $tree) {
1191 $tree = $self->tmp_index_do(sub {
1192 command_oneline('write-tree') });
1193 }
1194 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
1195 my @exec = ('git-commit-tree', $tree);
1197 foreach ($self->get_commit_parents($log_entry)) {
1198 push @exec, '-p', $_;
1199 }
1200 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1201 or croak $!;
1202 print $msg_fh $log_entry->{log} or croak $!;
1203 unless ($self->no_metadata) {
1204 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
1205 or croak $!;
1206 }
1207 $msg_fh->flush == 0 or croak $!;
1208 close $msg_fh or croak $!;
1209 chomp(my $commit = do { local $/; <$out_fh> });
1210 close $out_fh or croak $!;
1211 waitpid $pid, 0;
1212 croak $? if $?;
1213 if ($commit !~ /^$::sha1$/o) {
1214 die "Failed to commit, invalid sha1: $commit\n";
1215 }
1216 $self->rev_db_set($log_entry->{revision}, $commit, 1);
1218 $self->{last_rev} = $log_entry->{revision};
1220 $self->{last_commit} = $commit;
1221 print "r$log_entry->{revision}";
1222 if (defined $log_entry->{svm_revision}) {
1223 print " (\@$log_entry->{svm_revision})";
1224 }
1225 print " = $commit ($self->{ref_id})\n";
1226 if (defined $_repack && (--$_repack_nr == 0)) {
1227 $_repack_nr = $_repack;
1228 # repack doesn't use any arguments with spaces in them, does it?
1229 print "Running git repack $_repack_flags ...\n";
1230 command_noisy('repack', split(/\s+/, $_repack_flags));
1231 print "Done repacking\n";
1232 }
1233 return $commit;
1234}
1235sub match_paths {
1237 my ($self, $paths, $r) = @_;
1238 return 1 if $self->{path} eq '';
1239 if (my $path = $paths->{"/$self->{path}"}) {
1240 return ($path->{action} eq 'D') ? 0 : 1;
1241 }
1242 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
1243 if (grep /$self->{path_regex}/, keys %$paths) {
1244 return 1;
1245 }
1246 my $c = '';
1247 foreach (split m#/#, $self->{path}) {
1248 $c .= "/$_";
1249 next unless ($paths->{$c} &&
1250 ($paths->{$c}->{action} =~ /^[AR]$/));
1251 if ($self->ra->check_path($self->{path}, $r) ==
1252 $SVN::Node::dir) {
1253 return 1;
1254 }
1255 }
1256 return 0;
1257}
1258sub find_parent_branch {
1260 my ($self, $paths, $rev) = @_;
1261 return undef unless $self->follow_parent;
1262 unless (defined $paths) {
1263 my $err_handler = $SVN::Error::handler;
1264 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
1265 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
1266 $paths =
1267 Git::SVN::Ra::dup_changed_paths($_[0]) });
1268 $SVN::Error::handler = $err_handler;
1269 }
1270 return undef unless defined $paths;
1271 # look for a parent from another branch:
1273 my @b_path_components = split m#/#, $self->rel_path;
1274 my @a_path_components;
1275 my $i;
1276 while (@b_path_components) {
1277 $i = $paths->{'/'.join('/', @b_path_components)};
1278 last if $i && defined $i->{copyfrom_path};
1279 unshift(@a_path_components, pop(@b_path_components));
1280 }
1281 return undef unless defined $i && defined $i->{copyfrom_path};
1282 my $branch_from = $i->{copyfrom_path};
1283 if (@a_path_components) {
1284 print STDERR "branch_from: $branch_from => ";
1285 $branch_from .= '/'.join('/', @a_path_components);
1286 print STDERR $branch_from, "\n";
1287 }
1288 my $r = $i->{copyfrom_rev};
1289 my $repos_root = $self->ra->{repos_root};
1290 my $url = $self->ra->{url};
1291 my $new_url = $repos_root . $branch_from;
1292 print STDERR "Found possible branch point: ",
1293 "$new_url => ", $self->full_url, ", $r\n";
1294 $branch_from =~ s#^/##;
1295 my $remotes = read_all_remotes();
1296 my $gs;
1297 foreach my $repo_id (keys %$remotes) {
1298 my $u = $remotes->{$repo_id}->{url} or next;
1299 next if $url ne $u;
1300 my $fetch = $remotes->{$repo_id}->{fetch};
1301 foreach (qw/branches tags/) {
1302 resolve_local_globs($url, $fetch,
1303 $remotes->{$repo_id}->{$_});
1304 }
1305 foreach my $f (keys %$fetch) {
1306 next if $f ne $branch_from;
1307 $gs = Git::SVN->new($fetch->{$f}, $repo_id, $f);
1308 last;
1309 }
1310 last if $gs;
1311 }
1312 unless ($gs) {
1313 my $ref_id = $self->{ref_id};
1314 $ref_id =~ s/\@\d+$//;
1315 $ref_id .= "\@$r";
1316 # just grow a tail if we're not unique enough :x
1317 $ref_id .= '-' while find_ref($ref_id);
1318 print STDERR "Initializing parent: $ref_id\n";
1319 $gs = Git::SVN->init($new_url, '', $ref_id, $ref_id, 1);
1320 }
1321 my ($r0, $parent) = $gs->find_rev_before($r, 1);
1322 if (!defined $r0 || !defined $parent) {
1323 $gs->fetch(0, $r);
1324 ($r0, $parent) = $gs->last_rev_commit;
1325 }
1326 if (defined $r0 && defined $parent) {
1327 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
1328 $self->assert_index_clean($parent);
1329 my $ed;
1330 if ($self->ra->can_do_switch) {
1331 print STDERR "Following parent with do_switch\n";
1332 # do_switch works with svn/trunk >= r22312, but that
1333 # is not included with SVN 1.4.3 (the latest version
1334 # at the moment), so we can't rely on it
1335 $self->{last_commit} = $parent;
1336 $ed = SVN::Git::Fetcher->new($self);
1337 $gs->ra->gs_do_switch($r0, $rev, $gs,
1338 $self->full_url, $ed)
1339 or die "SVN connection failed somewhere...\n";
1340 } else {
1341 print STDERR "Following parent with do_update\n";
1342 $ed = SVN::Git::Fetcher->new($self);
1343 $self->ra->gs_do_update($rev, $rev, $self, $ed)
1344 or die "SVN connection failed somewhere...\n";
1345 }
1346 print STDERR "Successfully followed parent\n";
1347 return $self->make_log_entry($rev, [$parent], $ed);
1348 }
1349 return undef;
1350}
1351sub do_fetch {
1353 my ($self, $paths, $rev) = @_;
1354 my $ed;
1355 my ($last_rev, @parents);
1356 if (my $lc = $self->last_commit) {
1357 # we can have a branch that was deleted, then re-added
1358 # under the same name but copied from another path, in
1359 # which case we'll have multiple parents (we don't
1360 # want to break the original ref, nor lose copypath info):
1361 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1362 push @{$log_entry->{parents}}, $lc;
1363 return $log_entry;
1364 }
1365 $ed = SVN::Git::Fetcher->new($self);
1366 $last_rev = $self->{last_rev};
1367 $ed->{c} = $lc;
1368 @parents = ($lc);
1369 } else {
1370 $last_rev = $rev;
1371 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1372 return $log_entry;
1373 }
1374 $ed = SVN::Git::Fetcher->new($self);
1375 }
1376 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
1377 die "SVN connection failed somewhere...\n";
1378 }
1379 $self->make_log_entry($rev, \@parents, $ed);
1380}
1381sub get_untracked {
1383 my ($self, $ed) = @_;
1384 my @out;
1385 my $h = $ed->{empty};
1386 foreach (sort keys %$h) {
1387 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
1388 push @out, " $act: " . uri_encode($_);
1389 warn "W: $act: $_\n";
1390 }
1391 foreach my $t (qw/dir_prop file_prop/) {
1392 $h = $ed->{$t} or next;
1393 foreach my $path (sort keys %$h) {
1394 my $ppath = $path eq '' ? '.' : $path;
1395 foreach my $prop (sort keys %{$h->{$path}}) {
1396 next if $SKIP_PROP{$prop};
1397 my $v = $h->{$path}->{$prop};
1398 my $t_ppath_prop = "$t: " .
1399 uri_encode($ppath) . ' ' .
1400 uri_encode($prop);
1401 if (defined $v) {
1402 push @out, " +$t_ppath_prop " .
1403 uri_encode($v);
1404 } else {
1405 push @out, " -$t_ppath_prop";
1406 }
1407 }
1408 }
1409 }
1410 foreach my $t (qw/absent_file absent_directory/) {
1411 $h = $ed->{$t} or next;
1412 foreach my $parent (sort keys %$h) {
1413 foreach my $path (sort @{$h->{$parent}}) {
1414 push @out, " $t: " .
1415 uri_encode("$parent/$path");
1416 warn "W: $t: $parent/$path ",
1417 "Insufficient permissions?\n";
1418 }
1419 }
1420 }
1421 \@out;
1422}
1423sub parse_svn_date {
1425 my $date = shift || return '+0000 1970-01-01 00:00:00';
1426 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
1427 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
1428 croak "Unable to parse date: $date\n";
1429 "+0000 $Y-$m-$d $H:$M:$S";
1430}
1431sub check_author {
1433 my ($author) = @_;
1434 if (!defined $author || length $author == 0) {
1435 $author = '(no author)';
1436 }
1437 if (defined $::_authors && ! defined $::users{$author}) {
1438 die "Author: $author not defined in $::_authors file\n";
1439 }
1440 $author;
1441}
1442sub make_log_entry {
1444 my ($self, $rev, $parents, $ed) = @_;
1445 my $untracked = $self->get_untracked($ed);
1446 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
1448 print $un "r$rev\n" or croak $!;
1449 print $un $_, "\n" foreach @$untracked;
1450 my %log_entry = ( parents => $parents || [], revision => $rev,
1451 log => '');
1452 my $headrev;
1454 my $logged = delete $self->{logged_rev_props};
1455 if (!$logged || $self->{-want_revprops}) {
1456 my $rp = $self->ra->rev_proplist($rev);
1457 foreach (sort keys %$rp) {
1458 my $v = $rp->{$_};
1459 if (/^svn:(author|date|log)$/) {
1460 $log_entry{$1} = $v;
1461 } elsif ($_ eq 'svm:headrev') {
1462 $headrev = $v;
1463 } else {
1464 print $un " rev_prop: ", uri_encode($_), ' ',
1465 uri_encode($v), "\n";
1466 }
1467 }
1468 } else {
1469 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
1470 }
1471 close $un or croak $!;
1472 $log_entry{date} = parse_svn_date($log_entry{date});
1474 $log_entry{author} = check_author($log_entry{author});
1475 $log_entry{log} .= "\n";
1476 if (defined $headrev && $self->use_svm_props) {
1477 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
1478 if ($uuid ne $self->{svm}->{uuid}) {
1479 die "UUID mismatch on SVM path:\n",
1480 "expected: $self->{svm}->{uuid}\n",
1481 " got: $uuid\n";
1482 }
1483 my $full_url = $self->{svm}->{source};
1484 $full_url .= "/$self->{path}" if length $self->{path};
1485 $log_entry{metadata} = "$full_url\@$r $uuid";
1486 $log_entry{svm_revision} = $r;
1487 } else {
1488 $log_entry{metadata} = $self->full_url . "\@$rev " .
1489 $self->ra->uuid;
1490 }
1491 \%log_entry;
1492}
1493sub fetch {
1495 my ($self, $min_rev, $max_rev, @parents) = @_;
1496 my ($last_rev, $last_commit) = $self->last_rev_commit;
1497 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
1498 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
1499}
1500sub set_tree_cb {
1502 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
1503 $self->{inject_parents} = { $rev => $tree };
1504 $self->fetch(undef, undef);
1505}
1506sub set_tree {
1508 my ($self, $tree) = (shift, shift);
1509 my $log_entry = ::get_commit_entry($tree);
1510 unless ($self->{last_rev}) {
1511 fatal("Must have an existing revision to commit\n");
1512 }
1513 my %ed_opts = ( r => $self->{last_rev},
1514 log => $log_entry->{log},
1515 ra => $self->ra,
1516 tree_a => $self->{last_commit},
1517 tree_b => $tree,
1518 editor_cb => sub {
1519 $self->set_tree_cb($log_entry, $tree, @_) },
1520 svn_path => $self->{path} );
1521 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
1522 print "No changes\nr$self->{last_rev} = $tree\n";
1523 }
1524}
1525sub rebuild {
1527 my ($self) = @_;
1528 print "Rebuilding $self->{db_path} ...\n";
1529 my ($rev_list, $ctx) = command_output_pipe("rev-list", $self->refname);
1530 my $latest;
1531 my $full_url = $self->full_url;
1532 my $svn_uuid;
1533 while (<$rev_list>) {
1534 chomp;
1535 my $c = $_;
1536 die "Non-SHA1: $c\n" unless $c =~ /^$::sha1$/o;
1537 my ($url, $rev, $uuid) = ::cmt_metadata($c);
1538 # ignore merges (from set-tree)
1540 next if (!defined $rev || !$uuid);
1541 # if we merged or otherwise started elsewhere, this is
1543 # how we break out of it
1544 if ((defined $svn_uuid && ($uuid ne $svn_uuid)) ||
1545 ($full_url && $url && ($url ne $full_url))) {
1546 next;
1547 }
1548 $latest ||= $rev;
1549 $svn_uuid ||= $uuid;
1550 $self->rev_db_set($rev, $c);
1552 print "r$rev = $c\n";
1553 }
1554 command_close_pipe($rev_list, $ctx);
1555 print "Done rebuilding $self->{db_path}\n";
1556}
1557# rev_db:
1559# Tie::File seems to be prone to offset errors if revisions get sparse,
1560# it's not that fast, either. Tie::File is also not in Perl 5.6. So
1561# one of my favorite modules is out :< Next up would be one of the DBM
1562# modules, but I'm not sure which is most portable... So I'll just
1563# go with something that's plain-text, but still capable of
1564# being randomly accessed. So here's my ultra-simple fixed-width
1565# database. All records are 40 characters + "\n", so it's easy to seek
1566# to a revision: (41 * rev) is the byte offset.
1567# A record of 40 0s denotes an empty revision.
1568# And yes, it's still pretty fast (faster than Tie::File).
1569# These files are disposable unless --no-metadata is set
1570sub rev_db_set {
1572 my ($self, $rev, $commit, $update_ref) = @_;
1573 length $commit == 40 or croak "arg3 must be a full SHA1 hexsum\n";
1574 my ($db, $db_lock) = ($self->{db_path}, "$self->{db_path}.lock");
1575 my $sig;
1576 if ($update_ref) {
1577 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
1578 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
1579 }
1580 $LOCKFILES{$db_lock} = 1;
1581 if ($self->no_metadata) {
1582 copy($db, $db_lock) or die "rev_db_set(@_): ",
1583 "Failed to copy: ",
1584 "$db => $db_lock ($!)\n";
1585 } else {
1586 rename $db, $db_lock or die "rev_db_set(@_): ",
1587 "Failed to rename: ",
1588 "$db => $db_lock ($!)\n";
1589 }
1590 open my $fh, '+<', $db_lock or croak $!;
1591 my $offset = $rev * 41;
1592 # assume that append is the common case:
1593 seek $fh, 0, 2 or croak $!;
1594 my $pos = tell $fh;
1595 if ($pos < $offset) {
1596 for (1 .. (($offset - $pos) / 41)) {
1597 print $fh (('0' x 40),"\n") or croak $!;
1598 }
1599 }
1600 seek $fh, $offset, 0 or croak $!;
1601 print $fh $commit,"\n" or croak $!;
1602 close $fh or croak $!;
1603 if ($update_ref) {
1604 command_noisy('update-ref', '-m', "r$rev",
1605 $self->refname, $commit);
1606 }
1607 rename $db_lock, $db or die "rev_db_set(@_): ", "Failed to rename: ",
1608 "$db_lock => $db ($!)\n";
1609 delete $LOCKFILES{$db_lock};
1610 if ($update_ref) {
1611 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
1612 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
1613 kill $sig, $$ if defined $sig;
1614 }
1615}
1616sub rev_db_max {
1618 my ($self) = @_;
1619 my @stat = stat $self->{db_path} or
1620 die "Couldn't stat $self->{db_path}: $!\n";
1621 ($stat[7] % 41) == 0 or
1622 die "$self->{db_path} inconsistent size:$stat[7]\n";
1623 my $max = $stat[7] / 41;
1624 (($max > 0) ? $max - 1 : 0);
1625}
1626sub rev_db_get {
1628 my ($self, $rev) = @_;
1629 my $ret;
1630 my $offset = $rev * 41;
1631 open my $fh, '<', $self->{db_path} or croak $!;
1632 if (sysseek($fh, $offset, 0) == $offset) {
1633 my $read = sysread($fh, $ret, 40);
1634 $ret = undef if ($read != 40 || $ret eq ('0'x40));
1635 }
1636 close $fh or croak $!;
1637 $ret;
1638}
1639sub find_rev_before {
1641 my ($self, $rev, $eq_ok) = @_;
1642 --$rev unless $eq_ok;
1643 while ($rev > 0) {
1644 if (my $c = $self->rev_db_get($rev)) {
1645 return ($rev, $c);
1646 }
1647 --$rev;
1648 }
1649 return (undef, undef);
1650}
1651sub _new {
1653 my ($class, $repo_id, $ref_id, $path) = @_;
1654 unless (defined $repo_id && length $repo_id) {
1655 $repo_id = $Git::SVN::default_repo_id;
1656 }
1657 unless (defined $ref_id && length $ref_id) {
1658 $_[2] = $ref_id = $Git::SVN::default_ref_id;
1659 }
1660 $_[1] = $repo_id = sanitize_remote_name($repo_id);
1661 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
1662 $_[3] = $path = '' unless (defined $path);
1663 mkpath([$dir]);
1664 unless (-f "$dir/.rev_db") {
1665 open my $fh, '>>', "$dir/.rev_db" or croak $!;
1666 close $fh or croak $!;
1667 }
1668 bless { ref_id => $ref_id, dir => $dir, index => "$dir/index",
1669 path => $path, config => "$ENV{GIT_DIR}/svn/config",
1670 db_path => "$dir/.rev_db", repo_id => $repo_id }, $class;
1671}
1672sub uri_encode {
1674 my ($f) = @_;
1675 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
1676 $f
1677}
1678package Git::SVN::Prompt;
1680use strict;
1681use warnings;
1682require SVN::Core;
1683use vars qw/$_no_auth_cache $_username/;
1684sub simple {
1686 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
1687 $may_save = undef if $_no_auth_cache;
1688 $default_username = $_username if defined $_username;
1689 if (defined $default_username && length $default_username) {
1690 if (defined $realm && length $realm) {
1691 print STDERR "Authentication realm: $realm\n";
1692 STDERR->flush;
1693 }
1694 $cred->username($default_username);
1695 } else {
1696 username($cred, $realm, $may_save, $pool);
1697 }
1698 $cred->password(_read_password("Password for '" .
1699 $cred->username . "': ", $realm));
1700 $cred->may_save($may_save);
1701 $SVN::_Core::SVN_NO_ERROR;
1702}
1703sub ssl_server_trust {
1705 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
1706 $may_save = undef if $_no_auth_cache;
1707 print STDERR "Error validating server certificate for '$realm':\n";
1708 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
1709 print STDERR " - The certificate is not issued by a trusted ",
1710 "authority. Use the\n",
1711 " fingerprint to validate the certificate manually!\n";
1712 }
1713 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
1714 print STDERR " - The certificate hostname does not match.\n";
1715 }
1716 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
1717 print STDERR " - The certificate is not yet valid.\n";
1718 }
1719 if ($failures & $SVN::Auth::SSL::EXPIRED) {
1720 print STDERR " - The certificate has expired.\n";
1721 }
1722 if ($failures & $SVN::Auth::SSL::OTHER) {
1723 print STDERR " - The certificate has an unknown error.\n";
1724 }
1725 printf STDERR
1726 "Certificate information:\n".
1727 " - Hostname: %s\n".
1728 " - Valid: from %s until %s\n".
1729 " - Issuer: %s\n".
1730 " - Fingerprint: %s\n",
1731 map $cert_info->$_, qw(hostname valid_from valid_until
1732 issuer_dname fingerprint);
1733 my $choice;
1734prompt:
1735 print STDERR $may_save ?
1736 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
1737 "(R)eject or accept (t)emporarily? ";
1738 STDERR->flush;
1739 $choice = lc(substr(<STDIN> || 'R', 0, 1));
1740 if ($choice =~ /^t$/i) {
1741 $cred->may_save(undef);
1742 } elsif ($choice =~ /^r$/i) {
1743 return -1;
1744 } elsif ($may_save && $choice =~ /^p$/i) {
1745 $cred->may_save($may_save);
1746 } else {
1747 goto prompt;
1748 }
1749 $cred->accepted_failures($failures);
1750 $SVN::_Core::SVN_NO_ERROR;
1751}
1752sub ssl_client_cert {
1754 my ($cred, $realm, $may_save, $pool) = @_;
1755 $may_save = undef if $_no_auth_cache;
1756 print STDERR "Client certificate filename: ";
1757 STDERR->flush;
1758 chomp(my $filename = <STDIN>);
1759 $cred->cert_file($filename);
1760 $cred->may_save($may_save);
1761 $SVN::_Core::SVN_NO_ERROR;
1762}
1763sub ssl_client_cert_pw {
1765 my ($cred, $realm, $may_save, $pool) = @_;
1766 $may_save = undef if $_no_auth_cache;
1767 $cred->password(_read_password("Password: ", $realm));
1768 $cred->may_save($may_save);
1769 $SVN::_Core::SVN_NO_ERROR;
1770}
1771sub username {
1773 my ($cred, $realm, $may_save, $pool) = @_;
1774 $may_save = undef if $_no_auth_cache;
1775 if (defined $realm && length $realm) {
1776 print STDERR "Authentication realm: $realm\n";
1777 }
1778 my $username;
1779 if (defined $_username) {
1780 $username = $_username;
1781 } else {
1782 print STDERR "Username: ";
1783 STDERR->flush;
1784 chomp($username = <STDIN>);
1785 }
1786 $cred->username($username);
1787 $cred->may_save($may_save);
1788 $SVN::_Core::SVN_NO_ERROR;
1789}
1790sub _read_password {
1792 my ($prompt, $realm) = @_;
1793 print STDERR $prompt;
1794 STDERR->flush;
1795 require Term::ReadKey;
1796 Term::ReadKey::ReadMode('noecho');
1797 my $password = '';
1798 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
1799 last if $key =~ /[\012\015]/; # \n\r
1800 $password .= $key;
1801 }
1802 Term::ReadKey::ReadMode('restore');
1803 print STDERR "\n";
1804 STDERR->flush;
1805 $password;
1806}
1807package main;
1809{
1811 my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
1812 $SVN::Node::dir.$SVN::Node::unknown.
1813 $SVN::Node::none.$SVN::Node::file.
1814 $SVN::Node::dir.$SVN::Node::unknown.
1815 $SVN::Auth::SSL::CNMISMATCH.
1816 $SVN::Auth::SSL::NOTYETVALID.
1817 $SVN::Auth::SSL::EXPIRED.
1818 $SVN::Auth::SSL::UNKNOWNCA.
1819 $SVN::Auth::SSL::OTHER;
1820}
1821package SVN::Git::Fetcher;
1823use vars qw/@ISA/;
1824use strict;
1825use warnings;
1826use Carp qw/croak/;
1827use IO::File qw//;
1828use Digest::MD5;
1829# file baton members: path, mode_a, mode_b, pool, fh, blob, base
1831sub new {
1832 my ($class, $git_svn) = @_;
1833 my $self = SVN::Delta::Editor->new;
1834 bless $self, $class;
1835 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
1836 $self->{empty} = {};
1837 $self->{dir_prop} = {};
1838 $self->{file_prop} = {};
1839 $self->{absent_dir} = {};
1840 $self->{absent_file} = {};
1841 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
1842 $self;
1843}
1844sub set_path_strip {
1846 my ($self, $path) = @_;
1847 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
1848}
1849sub open_root {
1851 { path => '' };
1852}
1853sub open_directory {
1855 my ($self, $path, $pb, $rev) = @_;
1856 { path => $path };
1857}
1858sub git_path {
1860 my ($self, $path) = @_;
1861 if ($self->{path_strip}) {
1862 $path =~ s!$self->{path_strip}!! or
1863 die "Failed to strip path '$path' ($self->{path_strip})\n";
1864 }
1865 $path;
1866}
1867sub delete_entry {
1869 my ($self, $path, $rev, $pb) = @_;
1870 my $gpath = $self->git_path($path);
1872 return undef if ($gpath eq '');
1873 # remove entire directories.
1875 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
1876 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
1877 -r --name-only -z/,
1878 $self->{c}, '--', $gpath);
1879 local $/ = "\0";
1880 while (<$ls>) {
1881 chomp;
1882 $self->{gii}->remove($_);
1883 print "\tD\t$_\n" unless $::_q;
1884 }
1885 print "\tD\t$gpath/\n" unless $::_q;
1886 command_close_pipe($ls, $ctx);
1887 $self->{empty}->{$path} = 0
1888 } else {
1889 $self->{gii}->remove($gpath);
1890 print "\tD\t$gpath\n" unless $::_q;
1891 }
1892 undef;
1893}
1894sub open_file {
1896 my ($self, $path, $pb, $rev) = @_;
1897 my $gpath = $self->git_path($path);
1898 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
1899 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
1900 unless (defined $mode && defined $blob) {
1901 die "$path was not found in commit $self->{c} (r$rev)\n";
1902 }
1903 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
1904 pool => SVN::Pool->new, action => 'M' };
1905}
1906sub add_file {
1908 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
1909 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
1910 delete $self->{empty}->{$dir};
1911 { path => $path, mode_a => 100644, mode_b => 100644,
1912 pool => SVN::Pool->new, action => 'A' };
1913}
1914sub add_directory {
1916 my ($self, $path, $cp_path, $cp_rev) = @_;
1917 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
1918 delete $self->{empty}->{$dir};
1919 $self->{empty}->{$path} = 1;
1920 { path => $path };
1921}
1922sub change_dir_prop {
1924 my ($self, $db, $prop, $value) = @_;
1925 $self->{dir_prop}->{$db->{path}} ||= {};
1926 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
1927 undef;
1928}
1929sub absent_directory {
1931 my ($self, $path, $pb) = @_;
1932 $self->{absent_dir}->{$pb->{path}} ||= [];
1933 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
1934 undef;
1935}
1936sub absent_file {
1938 my ($self, $path, $pb) = @_;
1939 $self->{absent_file}->{$pb->{path}} ||= [];
1940 push @{$self->{absent_file}->{$pb->{path}}}, $path;
1941 undef;
1942}
1943sub change_file_prop {
1945 my ($self, $fb, $prop, $value) = @_;
1946 if ($prop eq 'svn:executable') {
1947 if ($fb->{mode_b} != 120000) {
1948 $fb->{mode_b} = defined $value ? 100755 : 100644;
1949 }
1950 } elsif ($prop eq 'svn:special') {
1951 $fb->{mode_b} = defined $value ? 120000 : 100644;
1952 } else {
1953 $self->{file_prop}->{$fb->{path}} ||= {};
1954 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
1955 }
1956 undef;
1957}
1958sub apply_textdelta {
1960 my ($self, $fb, $exp) = @_;
1961 my $fh = IO::File->new_tmpfile;
1962 $fh->autoflush(1);
1963 # $fh gets auto-closed() by SVN::TxDelta::apply(),
1964 # (but $base does not,) so dup() it for reading in close_file
1965 open my $dup, '<&', $fh or croak $!;
1966 my $base = IO::File->new_tmpfile;
1967 $base->autoflush(1);
1968 if ($fb->{blob}) {
1969 defined (my $pid = fork) or croak $!;
1970 if (!$pid) {
1971 open STDOUT, '>&', $base or croak $!;
1972 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
1973 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
1974 }
1975 waitpid $pid, 0;
1976 croak $? if $?;
1977 if (defined $exp) {
1979 seek $base, 0, 0 or croak $!;
1980 my $md5 = Digest::MD5->new;
1981 $md5->addfile($base);
1982 my $got = $md5->hexdigest;
1983 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
1984 "expected: $exp\n",
1985 " got: $got\n" if ($got ne $exp);
1986 }
1987 }
1988 seek $base, 0, 0 or croak $!;
1989 $fb->{fh} = $dup;
1990 $fb->{base} = $base;
1991 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
1992}
1993sub close_file {
1995 my ($self, $fb, $exp) = @_;
1996 my $hash;
1997 my $path = $self->git_path($fb->{path});
1998 if (my $fh = $fb->{fh}) {
1999 seek($fh, 0, 0) or croak $!;
2000 my $md5 = Digest::MD5->new;
2001 $md5->addfile($fh);
2002 my $got = $md5->hexdigest;
2003 die "Checksum mismatch: $path\n",
2004 "expected: $exp\n got: $got\n" if ($got ne $exp);
2005 seek($fh, 0, 0) or croak $!;
2006 if ($fb->{mode_b} == 120000) {
2007 read($fh, my $buf, 5) == 5 or croak $!;
2008 $buf eq 'link ' or die "$path has mode 120000",
2009 "but is not a link\n";
2010 }
2011 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
2012 if (!$pid) {
2013 open STDIN, '<&', $fh or croak $!;
2014 exec qw/git-hash-object -w --stdin/ or croak $!;
2015 }
2016 chomp($hash = do { local $/; <$out> });
2017 close $out or croak $!;
2018 close $fh or croak $!;
2019 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
2020 close $fb->{base} or croak $!;
2021 } else {
2022 $hash = $fb->{blob} or die "no blob information\n";
2023 }
2024 $fb->{pool}->clear;
2025 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
2026 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
2027 undef;
2028}
2029sub abort_edit {
2031 my $self = shift;
2032 $self->{nr} = $self->{gii}->{nr};
2033 delete $self->{gii};
2034 $self->SUPER::abort_edit(@_);
2035}
2036sub close_edit {
2038 my $self = shift;
2039 $self->{git_commit_ok} = 1;
2040 $self->{nr} = $self->{gii}->{nr};
2041 delete $self->{gii};
2042 $self->SUPER::close_edit(@_);
2043}
2044package SVN::Git::Editor;
2046use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
2047use strict;
2048use warnings;
2049use Carp qw/croak/;
2050use IO::File;
2051use Digest::MD5;
2052sub new {
2054 my ($class, $opts) = @_;
2055 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
2056 die "$_ required!\n" unless (defined $opts->{$_});
2057 }
2058 my $pool = SVN::Pool->new;
2060 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
2061 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
2062 $opts->{r}, $mods);
2063 # $opts->{ra} functions should not be used after this:
2065 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
2066 $opts->{editor_cb}, $pool);
2067 my $self = SVN::Delta::Editor->new(@ce, $pool);
2068 bless $self, $class;
2069 foreach (qw/svn_path r tree_a tree_b/) {
2070 $self->{$_} = $opts->{$_};
2071 }
2072 $self->{url} = $opts->{ra}->{url};
2073 $self->{mods} = $mods;
2074 $self->{types} = $types;
2075 $self->{pool} = $pool;
2076 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
2077 $self->{rm} = { };
2078 $self->{path_prefix} = length $self->{svn_path} ?
2079 "$self->{svn_path}/" : '';
2080 return $self;
2081}
2082sub generate_diff {
2084 my ($tree_a, $tree_b) = @_;
2085 my @diff_tree = qw(diff-tree -z -r);
2086 if ($_cp_similarity) {
2087 push @diff_tree, "-C$_cp_similarity";
2088 } else {
2089 push @diff_tree, '-C';
2090 }
2091 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
2092 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
2093 push @diff_tree, $tree_a, $tree_b;
2094 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
2095 local $/ = "\0";
2096 my $state = 'meta';
2097 my @mods;
2098 while (<$diff_fh>) {
2099 chomp $_; # this gets rid of the trailing "\0"
2100 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
2101 $::sha1\s($::sha1)\s
2102 ([MTCRAD])\d*$/xo) {
2103 push @mods, { mode_a => $1, mode_b => $2,
2104 sha1_b => $3, chg => $4 };
2105 if ($4 =~ /^(?:C|R)$/) {
2106 $state = 'file_a';
2107 } else {
2108 $state = 'file_b';
2109 }
2110 } elsif ($state eq 'file_a') {
2111 my $x = $mods[$#mods] or croak "Empty array\n";
2112 if ($x->{chg} !~ /^(?:C|R)$/) {
2113 croak "Error parsing $_, $x->{chg}\n";
2114 }
2115 $x->{file_a} = $_;
2116 $state = 'file_b';
2117 } elsif ($state eq 'file_b') {
2118 my $x = $mods[$#mods] or croak "Empty array\n";
2119 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
2120 croak "Error parsing $_, $x->{chg}\n";
2121 }
2122 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
2123 croak "Error parsing $_, $x->{chg}\n";
2124 }
2125 $x->{file_b} = $_;
2126 $state = 'meta';
2127 } else {
2128 croak "Error parsing $_\n";
2129 }
2130 }
2131 command_close_pipe($diff_fh, $ctx);
2132 \@mods;
2133}
2134sub check_diff_paths {
2136 my ($ra, $pfx, $rev, $mods) = @_;
2137 my %types;
2138 $pfx .= '/' if length $pfx;
2139 sub type_diff_paths {
2141 my ($ra, $types, $path, $rev) = @_;
2142 my @p = split m#/+#, $path;
2143 my $c = shift @p;
2144 unless (defined $types->{$c}) {
2145 $types->{$c} = $ra->check_path($c, $rev);
2146 }
2147 while (@p) {
2148 $c .= '/' . shift @p;
2149 next if defined $types->{$c};
2150 $types->{$c} = $ra->check_path($c, $rev);
2151 }
2152 }
2153 foreach my $m (@$mods) {
2155 foreach my $f (qw/file_a file_b/) {
2156 next unless defined $m->{$f};
2157 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
2158 if (length $pfx.$dir && ! defined $types{$dir}) {
2159 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
2160 }
2161 }
2162 }
2163 \%types;
2164}
2165sub split_path {
2167 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
2168}
2169sub repo_path {
2171 my ($self, $path) = @_;
2172 $self->{path_prefix}.(defined $path ? $path : '');
2173}
2174sub url_path {
2176 my ($self, $path) = @_;
2177 $self->{url} . '/' . $self->repo_path($path);
2178}
2179sub rmdirs {
2181 my ($self) = @_;
2182 my $rm = $self->{rm};
2183 delete $rm->{''}; # we never delete the url we're tracking
2184 return unless %$rm;
2185 foreach (keys %$rm) {
2187 my @d = split m#/#, $_;
2188 my $c = shift @d;
2189 $rm->{$c} = 1;
2190 while (@d) {
2191 $c .= '/' . shift @d;
2192 $rm->{$c} = 1;
2193 }
2194 }
2195 delete $rm->{$self->{svn_path}};
2196 delete $rm->{''}; # we never delete the url we're tracking
2197 return unless %$rm;
2198 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
2200 $self->{tree_b});
2201 local $/ = "\0";
2202 while (<$fh>) {
2203 chomp;
2204 my @dn = split m#/#, $_;
2205 while (pop @dn) {
2206 delete $rm->{join '/', @dn};
2207 }
2208 unless (%$rm) {
2209 close $fh;
2210 return;
2211 }
2212 }
2213 command_close_pipe($fh, $ctx);
2214 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
2216 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
2217 $self->close_directory($bat->{$d}, $p);
2218 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
2219 print "\tD+\t$d/\n" unless $::_q;
2220 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
2221 delete $bat->{$d};
2222 }
2223}
2224sub open_or_add_dir {
2226 my ($self, $full_path, $baton) = @_;
2227 my $t = $self->{types}->{$full_path};
2228 if (!defined $t) {
2229 die "$full_path not known in r$self->{r} or we have a bug!\n";
2230 }
2231 if ($t == $SVN::Node::none) {
2232 return $self->add_directory($full_path, $baton,
2233 undef, -1, $self->{pool});
2234 } elsif ($t == $SVN::Node::dir) {
2235 return $self->open_directory($full_path, $baton,
2236 $self->{r}, $self->{pool});
2237 }
2238 print STDERR "$full_path already exists in repository at ",
2239 "r$self->{r} and it is not a directory (",
2240 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
2241 exit 1;
2242}
2243sub ensure_path {
2245 my ($self, $path) = @_;
2246 my $bat = $self->{bat};
2247 my $repo_path = $self->repo_path($path);
2248 return $bat->{''} unless (length $repo_path);
2249 my @p = split m#/+#, $repo_path;
2250 my $c = shift @p;
2251 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
2252 while (@p) {
2253 my $c0 = $c;
2254 $c .= '/' . shift @p;
2255 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
2256 }
2257 return $bat->{$c};
2258}
2259sub A {
2261 my ($self, $m) = @_;
2262 my ($dir, $file) = split_path($m->{file_b});
2263 my $pbat = $self->ensure_path($dir);
2264 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2265 undef, -1);
2266 print "\tA\t$m->{file_b}\n" unless $::_q;
2267 $self->chg_file($fbat, $m);
2268 $self->close_file($fbat,undef,$self->{pool});
2269}
2270sub C {
2272 my ($self, $m) = @_;
2273 my ($dir, $file) = split_path($m->{file_b});
2274 my $pbat = $self->ensure_path($dir);
2275 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2276 $self->url_path($m->{file_a}), $self->{r});
2277 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2278 $self->chg_file($fbat, $m);
2279 $self->close_file($fbat,undef,$self->{pool});
2280}
2281sub delete_entry {
2283 my ($self, $path, $pbat) = @_;
2284 my $rpath = $self->repo_path($path);
2285 my ($dir, $file) = split_path($rpath);
2286 $self->{rm}->{$dir} = 1;
2287 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
2288}
2289sub R {
2291 my ($self, $m) = @_;
2292 my ($dir, $file) = split_path($m->{file_b});
2293 my $pbat = $self->ensure_path($dir);
2294 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2295 $self->url_path($m->{file_a}), $self->{r});
2296 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2297 $self->chg_file($fbat, $m);
2298 $self->close_file($fbat,undef,$self->{pool});
2299 ($dir, $file) = split_path($m->{file_a});
2301 $pbat = $self->ensure_path($dir);
2302 $self->delete_entry($m->{file_a}, $pbat);
2303}
2304sub M {
2306 my ($self, $m) = @_;
2307 my ($dir, $file) = split_path($m->{file_b});
2308 my $pbat = $self->ensure_path($dir);
2309 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
2310 $pbat,$self->{r},$self->{pool});
2311 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
2312 $self->chg_file($fbat, $m);
2313 $self->close_file($fbat,undef,$self->{pool});
2314}
2315sub T { shift->M(@_) }
2317sub change_file_prop {
2319 my ($self, $fbat, $pname, $pval) = @_;
2320 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
2321}
2322sub chg_file {
2324 my ($self, $fbat, $m) = @_;
2325 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
2326 $self->change_file_prop($fbat,'svn:executable','*');
2327 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
2328 $self->change_file_prop($fbat,'svn:executable',undef);
2329 }
2330 my $fh = IO::File->new_tmpfile or croak $!;
2331 if ($m->{mode_b} =~ /^120/) {
2332 print $fh 'link ' or croak $!;
2333 $self->change_file_prop($fbat,'svn:special','*');
2334 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
2335 $self->change_file_prop($fbat,'svn:special',undef);
2336 }
2337 defined(my $pid = fork) or croak $!;
2338 if (!$pid) {
2339 open STDOUT, '>&', $fh or croak $!;
2340 exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!;
2341 }
2342 waitpid $pid, 0;
2343 croak $? if $?;
2344 $fh->flush == 0 or croak $!;
2345 seek $fh, 0, 0 or croak $!;
2346 my $md5 = Digest::MD5->new;
2348 $md5->addfile($fh) or croak $!;
2349 seek $fh, 0, 0 or croak $!;
2350 my $exp = $md5->hexdigest;
2352 my $pool = SVN::Pool->new;
2353 my $atd = $self->apply_textdelta($fbat, undef, $pool);
2354 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
2355 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
2356 $pool->clear;
2357 close $fh or croak $!;
2359}
2360sub D {
2362 my ($self, $m) = @_;
2363 my ($dir, $file) = split_path($m->{file_b});
2364 my $pbat = $self->ensure_path($dir);
2365 print "\tD\t$m->{file_b}\n" unless $::_q;
2366 $self->delete_entry($m->{file_b}, $pbat);
2367}
2368sub close_edit {
2370 my ($self) = @_;
2371 my ($p,$bat) = ($self->{pool}, $self->{bat});
2372 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
2373 $self->close_directory($bat->{$_}, $p);
2374 }
2375 $self->SUPER::close_edit($p);
2376 $p->clear;
2377}
2378sub abort_edit {
2380 my ($self) = @_;
2381 $self->SUPER::abort_edit($self->{pool});
2382}
2383sub DESTROY {
2385 my $self = shift;
2386 $self->SUPER::DESTROY(@_);
2387 $self->{pool}->clear;
2388}
2389# this drives the editor
2391sub apply_diff {
2392 my ($self) = @_;
2393 my $mods = $self->{mods};
2394 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
2395 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
2396 my $f = $m->{chg};
2397 if (defined $o{$f}) {
2398 $self->$f($m);
2399 } else {
2400 fatal("Invalid change type: $f\n");
2401 }
2402 }
2403 $self->rmdirs if $_rmdir;
2404 if (@$mods == 0) {
2405 $self->abort_edit;
2406 } else {
2407 $self->close_edit;
2408 }
2409 return scalar @$mods;
2410}
2411package Git::SVN::Ra;
2413use vars qw/@ISA $config_dir/;
2414use strict;
2415use warnings;
2416my ($can_do_switch);
2417my $RA;
2418BEGIN {
2420 # enforce temporary pool usage for some simple functions
2421 my $e;
2422 foreach (qw/get_latest_revnum get_uuid get_repos_root/) {
2423 $e .= "sub $_ {
2424 my \$self = shift;
2425 my \$pool = SVN::Pool->new;
2426 my \@ret = \$self->SUPER::$_(\@_,\$pool);
2427 \$pool->clear;
2428 wantarray ? \@ret : \$ret[0]; }\n";
2429 }
2430 # get_dir needs $pool held in cache for dirents to work,
2432 # check_path is cacheable and rev_proplist is close enough
2433 # for our purposes.
2434 foreach (qw/check_path get_dir rev_proplist/) {
2435 $e .= "my \%${_}_cache; my \$${_}_rev = 0; sub $_ {
2436 my \$self = shift;
2437 my \$r = pop;
2438 my \$k = join(\"\\0\", \@_);
2439 if (my \$x = \$${_}_cache{\$r}->{\$k}) {
2440 return wantarray ? \@\$x : \$x->[0];
2441 }
2442 my \$pool = SVN::Pool->new;
2443 my \@ret = \$self->SUPER::$_(\@_, \$r, \$pool);
2444 if (\$r != \$${_}_rev) {
2445 \%${_}_cache = ( pool => [] );
2446 \$${_}_rev = \$r;
2447 }
2448 \$${_}_cache{\$r}->{\$k} = \\\@ret;
2449 push \@{\$${_}_cache{pool}}, \$pool;
2450 wantarray ? \@ret : \$ret[0]; }\n";
2451 }
2452 $e .= "\n1;";
2453 eval $e or die $@;
2454}
2455sub new {
2457 my ($class, $url) = @_;
2458 $url =~ s!/+$!!;
2459 return $RA if ($RA && $RA->{url} eq $url);
2460 SVN::_Core::svn_config_ensure($config_dir, undef);
2462 my ($baton, $callbacks) = SVN::Core::auth_open_helper([
2463 SVN::Client::get_simple_provider(),
2464 SVN::Client::get_ssl_server_trust_file_provider(),
2465 SVN::Client::get_simple_prompt_provider(
2466 \&Git::SVN::Prompt::simple, 2),
2467 SVN::Client::get_ssl_client_cert_prompt_provider(
2468 \&Git::SVN::Prompt::ssl_client_cert, 2),
2469 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
2470 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
2471 SVN::Client::get_username_provider(),
2472 SVN::Client::get_ssl_server_trust_prompt_provider(
2473 \&Git::SVN::Prompt::ssl_server_trust),
2474 SVN::Client::get_username_prompt_provider(
2475 \&Git::SVN::Prompt::username, 2),
2476 ]);
2477 my $config = SVN::Core::config_get_config($config_dir);
2478 my $self = SVN::Ra->new(url => $url, auth => $baton,
2479 config => $config,
2480 pool => SVN::Pool->new,
2481 auth_provider_callbacks => $callbacks);
2482 $self->{svn_path} = $url;
2483 $self->{repos_root} = $self->get_repos_root;
2484 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
2485 $RA = bless $self, $class;
2486}
2487sub DESTROY {
2489 # do not call the real DESTROY since we store ourselves in $RA
2490}
2491sub get_log {
2493 my ($self, @args) = @_;
2494 my $pool = SVN::Pool->new;
2495 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
2496 my $ret = $self->SUPER::get_log(@args, $pool);
2497 $pool->clear;
2498 $ret;
2499}
2500sub get_commit_editor {
2502 my ($self, $log, $cb, $pool) = @_;
2503 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
2504 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
2505}
2506sub uuid {
2508 my ($self) = @_;
2509 $self->{uuid} ||= $self->get_uuid;
2510}
2511sub gs_do_update {
2513 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
2514 my $new = ($rev_a == $rev_b);
2515 my $path = $gs->{path};
2516 my $pool = SVN::Pool->new;
2518 $editor->set_path_strip($path);
2519 my (@pc) = split m#/#, $path;
2520 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
2521 1, $editor, $pool);
2522 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2523 # Since we can't rely on svn_ra_reparent being available, we'll
2525 # just have to do some magic with set_path to make it so
2526 # we only want a partial path.
2527 my $sp = '';
2528 my $final = join('/', @pc);
2529 while (@pc) {
2530 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
2531 $sp .= '/' if length $sp;
2532 $sp .= shift @pc;
2533 }
2534 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
2535 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
2537 $reporter->finish_report($pool);
2539 $pool->clear;
2540 $editor->{git_commit_ok};
2541}
2542# this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
2544# svn_ra_reparent didn't work before 1.4)
2545sub gs_do_switch {
2546 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
2547 my $path = $gs->{path};
2548 my $pool = SVN::Pool->new;
2549 my $full_url = $self->{url};
2551 my $old_url = $full_url;
2552 $full_url .= "/$path" if length $path;
2553 my ($ra, $reparented);
2554 if ($old_url ne $full_url) {
2555 if ($old_url !~ m#^svn(\+ssh)?://#) {
2556 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url,
2557 $pool);
2558 $self->{url} = $full_url;
2559 $reparented = 1;
2560 } else {
2561 $ra = Git::SVN::Ra->new($full_url);
2562 }
2563 }
2564 $ra ||= $self;
2565 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
2566 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2567 $reporter->set_path('', $rev_a, 0, @lock, $pool);
2568 $reporter->finish_report($pool);
2569 if ($reparented) {
2571 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
2572 $self->{url} = $old_url;
2573 }
2574 $pool->clear;
2576 $editor->{git_commit_ok};
2577}
2578sub gs_fetch_loop_common {
2580 my ($self, $base, $head, $gsv, $globs) = @_;
2581 return if ($base > $head);
2582 my $inc = 1000;
2583 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
2584 my %common;
2585 my $common_max = scalar @$gsv;
2586 foreach my $gs (@$gsv) {
2588 if (my $last_commit = $gs->last_commit) {
2589 $gs->assert_index_clean($last_commit);
2590 }
2591 my @tmp = split m#/#, $gs->{path};
2592 my $p = '';
2593 foreach (@tmp) {
2594 $p .= length($p) ? "/$_" : $_;
2595 $common{$p} ||= 0;
2596 $common{$p}++;
2597 }
2598 }
2599 $globs ||= [];
2600 $common_max += scalar @$globs;
2601 foreach my $glob (@$globs) {
2602 my @tmp = split m#/#, $glob->{path}->{left};
2603 my $p = '';
2604 foreach (@tmp) {
2605 $p .= length($p) ? "/$_" : $_;
2606 $common{$p} ||= 0;
2607 $common{$p}++;
2608 }
2609 }
2610 my $longest_path = '';
2612 foreach (sort {length $b <=> length $a} keys %common) {
2613 if ($common{$_} == $common_max) {
2614 $longest_path = $_;
2615 last;
2616 }
2617 }
2618 while (1) {
2619 my %revs;
2620 my $err;
2621 my $err_handler = $SVN::Error::handler;
2622 $SVN::Error::handler = sub {
2623 ($err) = @_;
2624 skip_unknown_revs($err);
2625 };
2626 sub _cb {
2627 my ($paths, $r, $author, $date, $log) = @_;
2628 [ dup_changed_paths($paths),
2629 { author => $author, date => $date, log => $log } ];
2630 }
2631 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
2632 sub { $revs{$_[1]} = _cb(@_) });
2633 if ($err && $max >= $head) {
2634 print STDERR "Path '$longest_path' ",
2635 "was probably deleted:\n",
2636 $err->expanded_message,
2637 "\nWill attempt to follow ",
2638 "revisions r$min .. r$max ",
2639 "committed before the deletion\n";
2640 my $hi = $max;
2641 while (--$hi >= $min) {
2642 my $ok;
2643 $self->get_log([$longest_path], $min, $hi,
2644 0, 1, 1, sub {
2645 $ok ||= $_[1];
2646 $revs{$_[1]} = _cb(@_) });
2647 if ($ok) {
2648 print STDERR "r$min .. r$ok OK\n";
2649 last;
2650 }
2651 }
2652 }
2653 $SVN::Error::handler = $err_handler;
2654 my %exists = map { $_->{path} => $_ } @$gsv;
2656 foreach my $r (sort {$a <=> $b} keys %revs) {
2657 my ($paths, $logged) = @{$revs{$r}};
2658 foreach my $gs ($self->match_globs(\%exists, $paths,
2660 $globs, $r)) {
2661 if ($gs->rev_db_max >= $r) {
2662 next;
2663 }
2664 next unless $gs->match_paths($paths, $r);
2665 $gs->{logged_rev_props} = $logged;
2666 my $log_entry = $gs->do_fetch($paths, $r);
2667 if ($log_entry) {
2668 $gs->do_git_commit($log_entry);
2669 }
2670 }
2671 foreach my $g (@$globs) {
2672 my $k = "svn-remote.$g->{remote}." .
2673 "$g->{t}-maxRev";
2674 Git::SVN::tmp_config($k, $r);
2675 }
2676 }
2677 # pre-fill the .rev_db since it'll eventually get filled in
2678 # with '0' x40 if something new gets committed
2679 foreach my $gs (@$gsv) {
2680 next if defined $gs->rev_db_get($max);
2681 $gs->rev_db_set($max, 0 x40);
2682 }
2683 last if $max >= $head;
2684 $min = $max + 1;
2685 $max += $inc;
2686 $max = $head if ($max > $head);
2687 }
2688}
2689sub match_globs {
2691 my ($self, $exists, $paths, $globs, $r) = @_;
2692 sub get_dir_check {
2694 my ($self, $exists, $g, $r) = @_;
2695 my @x = eval { $self->get_dir($g->{path}->{left}, $r) };
2696 return unless scalar @x == 3;
2697 my $dirents = $x[0];
2698 foreach my $de (keys %$dirents) {
2699 next if $dirents->{$de}->kind != $SVN::Node::dir;
2700 my $p = $g->{path}->full_path($de);
2701 next if $exists->{$p};
2702 next if (length $g->{path}->{right} &&
2703 ($self->check_path($p, $r) !=
2704 $SVN::Node::dir));
2705 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
2706 $g->{ref}->full_path($de), 1);
2707 }
2708 }
2709 foreach my $g (@$globs) {
2710 if (my $path = $paths->{"/$g->{path}->{left}"}) {
2711 if ($path->{action} =~ /^[AR]$/) {
2712 get_dir_check($self, $exists, $g, $r);
2713 }
2714 }
2715 foreach (keys %$paths) {
2716 if (/$g->{path}->{left_regex}/) {
2717 next if $paths->{$_}->{action} !~ /^[AR]$/;
2718 get_dir_check($self, $exists, $g, $r);
2719 }
2720 next unless /$g->{path}->{regex}/;
2721 my $p = $1;
2722 my $pathname = $g->{path}->full_path($p);
2723 next if $exists->{$pathname};
2724 $exists->{$pathname} = Git::SVN->init(
2725 $self->{url}, $pathname, undef,
2726 $g->{ref}->full_path($p), 1);
2727 }
2728 my $c = '';
2729 foreach (split m#/#, $g->{path}->{left}) {
2730 $c .= "/$_";
2731 next unless ($paths->{$c} &&
2732 ($paths->{$c}->{action} =~ /^[AR]$/));
2733 get_dir_check($self, $exists, $g, $r);
2734 }
2735 }
2736 values %$exists;
2737}
2738sub minimize_url {
2740 my ($self) = @_;
2741 return $self->{url} if ($self->{url} eq $self->{repos_root});
2742 my $url = $self->{repos_root};
2743 my @components = split(m!/!, $self->{svn_path});
2744 my $c = '';
2745 do {
2746 $url .= "/$c" if length $c;
2747 eval { (ref $self)->new($url)->get_latest_revnum };
2748 } while ($@ && ($c = shift @components));
2749 $url;
2750}
2751sub can_do_switch {
2753 my $self = shift;
2754 unless (defined $can_do_switch) {
2755 my $pool = SVN::Pool->new;
2756 my $rep = eval {
2757 $self->do_switch(1, '', 0, $self->{url},
2758 SVN::Delta::Editor->new, $pool);
2759 };
2760 if ($@) {
2761 $can_do_switch = 0;
2762 } else {
2763 $rep->abort_report($pool);
2764 $can_do_switch = 1;
2765 }
2766 $pool->clear;
2767 }
2768 $can_do_switch;
2769}
2770sub skip_unknown_revs {
2772 my ($err) = @_;
2773 my $errno = $err->apr_err();
2774 # Maybe the branch we're tracking didn't
2775 # exist when the repo started, so it's
2776 # not an error if it doesn't, just continue
2777 #
2778 # Wonderfully consistent library, eh?
2779 # 160013 - svn:// and file://
2780 # 175002 - http(s)://
2781 # 175007 - http(s):// (this repo required authorization, too...)
2782 # More codes may be discovered later...
2783 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
2784 return;
2785 }
2786 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
2787}
2788# svn_log_changed_path_t objects passed to get_log are likely to be
2790# overwritten even if only the refs are copied to an external variable,
2791# so we should dup the structures in their entirety. Using an externally
2792# passed pool (instead of our temporary and quickly cleared pool in
2793# Git::SVN::Ra) does not help matters at all...
2794sub dup_changed_paths {
2795 my ($paths) = @_;
2796 return undef unless $paths;
2797 my %ret;
2798 foreach my $p (keys %$paths) {
2799 my $i = $paths->{$p};
2800 my %s = map { $_ => $i->$_ }
2801 qw/copyfrom_path copyfrom_rev action/;
2802 $ret{$p} = \%s;
2803 }
2804 \%ret;
2805}
2806package Git::SVN::Log;
2808use strict;
2809use warnings;
2810use POSIX qw/strftime/;
2811use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
2812 %rusers $show_commit $incremental/;
2813my $l_fmt;
2814sub cmt_showable {
2816 my ($c) = @_;
2817 return 1 if defined $c->{r};
2818 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
2819 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
2820 my @log = command(qw/cat-file commit/, $c->{c});
2821 shift @log while ($log[0] ne "\n");
2822 shift @log;
2823 @{$c->{l}} = grep !/^git-svn-id: /, @log;
2824 (undef, $c->{r}, undef) = ::extract_metadata(
2826 (grep(/^git-svn-id: /, @log))[-1]);
2827 }
2828 return defined $c->{r};
2829}
2830sub log_use_color {
2832 return 1 if $color;
2833 my ($dc, $dcvar);
2834 $dcvar = 'color.diff';
2835 $dc = `git-config --get $dcvar`;
2836 if ($dc eq '') {
2837 # nothing at all; fallback to "diff.color"
2838 $dcvar = 'diff.color';
2839 $dc = `git-config --get $dcvar`;
2840 }
2841 chomp($dc);
2842 if ($dc eq 'auto') {
2843 my $pc;
2844 $pc = `git-config --get color.pager`;
2845 if ($pc eq '') {
2846 # does not have it -- fallback to pager.color
2847 $pc = `git-config --bool --get pager.color`;
2848 }
2849 else {
2850 $pc = `git-config --bool --get color.pager`;
2851 if ($?) {
2852 $pc = 'false';
2853 }
2854 }
2855 chomp($pc);
2856 if (-t *STDOUT || (defined $pager && $pc eq 'true')) {
2857 return ($ENV{TERM} && $ENV{TERM} ne 'dumb');
2858 }
2859 return 0;
2860 }
2861 return 0 if $dc eq 'never';
2862 return 1 if $dc eq 'always';
2863 chomp($dc = `git-config --bool --get $dcvar`);
2864 return ($dc eq 'true');
2865}
2866sub git_svn_log_cmd {
2868 my ($r_min, $r_max) = @_;
2869 my $gs = Git::SVN->_new;
2870 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
2871 $gs->refname);
2872 push @cmd, '-r' unless $non_recursive;
2873 push @cmd, qw/--raw --name-status/ if $verbose;
2874 push @cmd, '--color' if log_use_color();
2875 return @cmd unless defined $r_max;
2876 if ($r_max == $r_min) {
2877 push @cmd, '--max-count=1';
2878 if (my $c = $gs->rev_db_get($r_max)) {
2879 push @cmd, $c;
2880 }
2881 } else {
2882 my ($c_min, $c_max);
2883 $c_max = $gs->rev_db_get($r_max);
2884 $c_min = $gs->rev_db_get($r_min);
2885 if (defined $c_min && defined $c_max) {
2886 if ($r_max > $r_max) {
2887 push @cmd, "$c_min..$c_max";
2888 } else {
2889 push @cmd, "$c_max..$c_min";
2890 }
2891 } elsif ($r_max > $r_min) {
2892 push @cmd, $c_max;
2893 } else {
2894 push @cmd, $c_min;
2895 }
2896 }
2897 return @cmd;
2898}
2899# adapted from pager.c
2901sub config_pager {
2902 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
2903 if (!defined $pager) {
2904 $pager = 'less';
2905 } elsif (length $pager == 0 || $pager eq 'cat') {
2906 $pager = undef;
2907 }
2908}
2909sub run_pager {
2911 return unless -t *STDOUT;
2912 pipe my $rfd, my $wfd or return;
2913 defined(my $pid = fork) or ::fatal "Can't fork: $!\n";
2914 if (!$pid) {
2915 open STDOUT, '>&', $wfd or
2916 ::fatal "Can't redirect to stdout: $!\n";
2917 return;
2918 }
2919 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!\n";
2920 $ENV{LESS} ||= 'FRSX';
2921 exec $pager or ::fatal "Can't run pager: $! ($pager)\n";
2922}
2923sub tz_to_s_offset {
2925 my ($tz) = @_;
2926 $tz =~ s/(\d\d)$//;
2927 return ($1 * 60) + ($tz * 3600);
2928}
2929sub get_author_info {
2931 my ($dest, $author, $t, $tz) = @_;
2932 $author =~ s/(?:^\s*|\s*$)//g;
2933 $dest->{a_raw} = $author;
2934 my $au;
2935 if ($::_authors) {
2936 $au = $rusers{$author} || undef;
2937 }
2938 if (!$au) {
2939 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
2940 }
2941 $dest->{t} = $t;
2942 $dest->{tz} = $tz;
2943 $dest->{a} = $au;
2944 # Date::Parse isn't in the standard Perl distro :(
2945 if ($tz =~ s/^\+//) {
2946 $t += tz_to_s_offset($tz);
2947 } elsif ($tz =~ s/^\-//) {
2948 $t -= tz_to_s_offset($tz);
2949 }
2950 $dest->{t_utc} = $t;
2951}
2952sub process_commit {
2954 my ($c, $r_min, $r_max, $defer) = @_;
2955 if (defined $r_min && defined $r_max) {
2956 if ($r_min == $c->{r} && $r_min == $r_max) {
2957 show_commit($c);
2958 return 0;
2959 }
2960 return 1 if $r_min == $r_max;
2961 if ($r_min < $r_max) {
2962 # we need to reverse the print order
2963 return 0 if (defined $limit && --$limit < 0);
2964 push @$defer, $c;
2965 return 1;
2966 }
2967 if ($r_min != $r_max) {
2968 return 1 if ($r_min < $c->{r});
2969 return 1 if ($r_max > $c->{r});
2970 }
2971 }
2972 return 0 if (defined $limit && --$limit < 0);
2973 show_commit($c);
2974 return 1;
2975}
2976sub show_commit {
2978 my $c = shift;
2979 if ($oneline) {
2980 my $x = "\n";
2981 if (my $l = $c->{l}) {
2982 while ($l->[0] =~ /^\s*$/) { shift @$l }
2983 $x = $l->[0];
2984 }
2985 $l_fmt ||= 'A' . length($c->{r});
2986 print 'r',pack($l_fmt, $c->{r}),' | ';
2987 print "$c->{c} | " if $show_commit;
2988 print $x;
2989 } else {
2990 show_commit_normal($c);
2991 }
2992}
2993sub show_commit_changed_paths {
2995 my ($c) = @_;
2996 return unless $c->{changed};
2997 print "Changed paths:\n", @{$c->{changed}};
2998}
2999sub show_commit_normal {
3001 my ($c) = @_;
3002 print '-' x72, "\nr$c->{r} | ";
3003 print "$c->{c} | " if $show_commit;
3004 print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
3005 localtime($c->{t_utc})), ' | ';
3006 my $nr_line = 0;
3007 if (my $l = $c->{l}) {
3009 while ($l->[$#$l] eq "\n" && $#$l > 0
3010 && $l->[($#$l - 1)] eq "\n") {
3011 pop @$l;
3012 }
3013 $nr_line = scalar @$l;
3014 if (!$nr_line) {
3015 print "1 line\n\n\n";
3016 } else {
3017 if ($nr_line == 1) {
3018 $nr_line = '1 line';
3019 } else {
3020 $nr_line .= ' lines';
3021 }
3022 print $nr_line, "\n";
3023 show_commit_changed_paths($c);
3024 print "\n";
3025 print $_ foreach @$l;
3026 }
3027 } else {
3028 print "1 line\n";
3029 show_commit_changed_paths($c);
3030 print "\n";
3031 }
3033 foreach my $x (qw/raw diff/) {
3034 if ($c->{$x}) {
3035 print "\n";
3036 print $_ foreach @{$c->{$x}}
3037 }
3038 }
3039}
3040sub cmd_show_log {
3042 my (@args) = @_;
3043 my ($r_min, $r_max);
3044 my $r_last = -1; # prevent dupes
3045 if (defined $TZ) {
3046 $ENV{TZ} = $TZ;
3047 } else {
3048 delete $ENV{TZ};
3049 }
3050 if (defined $::_revision) {
3051 if ($::_revision =~ /^(\d+):(\d+)$/) {
3052 ($r_min, $r_max) = ($1, $2);
3053 } elsif ($::_revision =~ /^\d+$/) {
3054 $r_min = $r_max = $::_revision;
3055 } else {
3056 ::fatal "-r$::_revision is not supported, use ",
3057 "standard \'git log\' arguments instead\n";
3058 }
3059 }
3060 config_pager();
3062 @args = (git_svn_log_cmd($r_min, $r_max), @args);
3063 my $log = command_output_pipe(@args);
3064 run_pager();
3065 my (@k, $c, $d);
3066 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
3067 while (<$log>) {
3068 if (/^${esc_color}commit ($::sha1_short)/o) {
3069 my $cmt = $1;
3070 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
3071 $r_last = $c->{r};
3072 process_commit($c, $r_min, $r_max, \@k) or
3073 goto out;
3074 }
3075 $d = undef;
3076 $c = { c => $cmt };
3077 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
3078 get_author_info($c, $1, $2, $3);
3079 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
3080 # ignore
3081 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
3082 push @{$c->{raw}}, $_;
3083 } elsif (/^${esc_color}[ACRMDT]\t/) {
3084 # we could add $SVN->{svn_path} here, but that requires
3085 # remote access at the moment (repo_path_split)...
3086 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
3087 push @{$c->{changed}}, $_;
3088 } elsif (/^${esc_color}diff /o) {
3089 $d = 1;
3090 push @{$c->{diff}}, $_;
3091 } elsif ($d) {
3092 push @{$c->{diff}}, $_;
3093 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
3094 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
3095 } elsif (s/^${esc_color} //o) {
3096 push @{$c->{l}}, $_;
3097 }
3098 }
3099 if ($c && defined $c->{r} && $c->{r} != $r_last) {
3100 $r_last = $c->{r};
3101 process_commit($c, $r_min, $r_max, \@k);
3102 }
3103 if (@k) {
3104 my $swap = $r_max;
3105 $r_max = $r_min;
3106 $r_min = $swap;
3107 process_commit($_, $r_min, $r_max) foreach reverse @k;
3108 }
3109out:
3110 close $log;
3111 print '-' x72,"\n" unless $incremental || $oneline;
3112}
3113package Git::SVN::Migration;
3115# these version numbers do NOT correspond to actual version numbers
3116# of git nor git-svn. They are just relative.
3117#
3118# v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
3119#
3120# v1 layout: .git/$id/info/url, refs/remotes/$id
3121#
3122# v2 layout: .git/svn/$id/info/url, refs/remotes/$id
3123#
3124# v3 layout: .git/svn/$id, refs/remotes/$id
3125# - info/url may remain for backwards compatibility
3126# - this is what we migrate up to this layout automatically,
3127# - this will be used by git svn init on single branches
3128#
3129# v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
3130# - this is only created for newly multi-init-ed
3131# repositories. Similar in spirit to the
3132# --use-separate-remotes option in git-clone (now default)
3133# - we do not automatically migrate to this (following
3134# the example set by core git)
3135use strict;
3136use warnings;
3137use Carp qw/croak/;
3138use File::Path qw/mkpath/;
3139use File::Basename qw/dirname basename/;
3140use vars qw/$_minimize/;
3141sub migrate_from_v0 {
3143 my $git_dir = $ENV{GIT_DIR};
3144 return undef unless -d $git_dir;
3145 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3146 my $migrated = 0;
3147 while (<$fh>) {
3148 chomp;
3149 my ($id, $orig_ref) = ($_, $_);
3150 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
3151 next unless -f "$git_dir/$id/info/url";
3152 my $new_ref = "refs/remotes/$id";
3153 if (::verify_ref("$new_ref^0")) {
3154 print STDERR "W: $orig_ref is probably an old ",
3155 "branch used by an ancient version of ",
3156 "git-svn.\n",
3157 "However, $new_ref also exists.\n",
3158 "We will not be able ",
3159 "to use this branch until this ",
3160 "ambiguity is resolved.\n";
3161 next;
3162 }
3163 print STDERR "Migrating from v0 layout...\n" if !$migrated;
3164 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
3165 command_noisy('update-ref', $new_ref, $orig_ref);
3166 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
3167 $migrated++;
3168 }
3169 command_close_pipe($fh, $ctx);
3170 print STDERR "Done migrating from v0 layout...\n" if $migrated;
3171 $migrated;
3172}
3173sub migrate_from_v1 {
3175 my $git_dir = $ENV{GIT_DIR};
3176 my $migrated = 0;
3177 return $migrated unless -d $git_dir;
3178 my $svn_dir = "$git_dir/svn";
3179 # just in case somebody used 'svn' as their $id at some point...
3181 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
3182 print STDERR "Migrating from a git-svn v1 layout...\n";
3184 mkpath([$svn_dir]);
3185 print STDERR "Data from a previous version of git-svn exists, but\n\t",
3186 "$svn_dir\n\t(required for this version ",
3187 "($::VERSION) of git-svn) does not. exist\n";
3188 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3189 while (<$fh>) {
3190 my $x = $_;
3191 next unless $x =~ s#^refs/remotes/##;
3192 chomp $x;
3193 next unless -f "$git_dir/$x/info/url";
3194 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
3195 next unless $u;
3196 my $dn = dirname("$git_dir/svn/$x");
3197 mkpath([$dn]) unless -d $dn;
3198 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
3199 mkpath(["$git_dir/svn/svn"]);
3200 print STDERR " - $git_dir/$x/info => ",
3201 "$git_dir/svn/$x/info\n";
3202 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
3203 croak "$!: $x";
3204 # don't worry too much about these, they probably
3205 # don't exist with repos this old (save for index,
3206 # and we can easily regenerate that)
3207 foreach my $f (qw/unhandled.log index .rev_db/) {
3208 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
3209 }
3210 } else {
3211 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
3212 rename "$git_dir/$x", "$git_dir/svn/$x" or
3213 croak "$!: $x";
3214 }
3215 $migrated++;
3216 }
3217 command_close_pipe($fh, $ctx);
3218 print STDERR "Done migrating from a git-svn v1 layout\n";
3219 $migrated;
3220}
3221sub read_old_urls {
3223 my ($l_map, $pfx, $path) = @_;
3224 my @dir;
3225 foreach (<$path/*>) {
3226 if (-r "$_/info/url") {
3227 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
3228 my $ref_id = $pfx . basename $_;
3229 my $url = ::file_to_s("$_/info/url");
3230 $l_map->{$ref_id} = $url;
3231 } elsif (-d $_) {
3232 push @dir, $_;
3233 }
3234 }
3235 foreach (@dir) {
3236 my $x = $_;
3237 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
3238 read_old_urls($l_map, $x, $_);
3239 }
3240}
3241sub migrate_from_v2 {
3243 my @cfg = command(qw/config -l/);
3244 return if grep /^svn-remote\..+\.url=/, @cfg;
3245 my %l_map;
3246 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
3247 my $migrated = 0;
3248 foreach my $ref_id (sort keys %l_map) {
3250 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
3251 if ($@) {
3252 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
3253 }
3254 $migrated++;
3255 }
3256 $migrated;
3257}
3258sub minimize_connections {
3260 my $r = Git::SVN::read_all_remotes();
3261 my $new_urls = {};
3262 my $root_repos = {};
3263 foreach my $repo_id (keys %$r) {
3264 my $url = $r->{$repo_id}->{url} or next;
3265 my $fetch = $r->{$repo_id}->{fetch} or next;
3266 my $ra = Git::SVN::Ra->new($url);
3267 # skip existing cases where we already connect to the root
3269 if (($ra->{url} eq $ra->{repos_root}) ||
3270 (Git::SVN::sanitize_remote_name($ra->{repos_root}) eq
3271 $repo_id)) {
3272 $root_repos->{$ra->{url}} = $repo_id;
3273 next;
3274 }
3275 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
3277 my $root_path = $ra->{url};
3278 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
3279 foreach my $path (keys %$fetch) {
3280 my $ref_id = $fetch->{$path};
3281 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
3282 # make sure we can read when connecting to
3284 # a higher level of a repository
3285 my ($last_rev, undef) = $gs->last_rev_commit;
3286 if (!defined $last_rev) {
3287 $last_rev = eval {
3288 $root_ra->get_latest_revnum;
3289 };
3290 next if $@;
3291 }
3292 my $new = $root_path;
3293 $new .= length $path ? "/$path" : '';
3294 eval {
3295 $root_ra->get_log([$new], $last_rev, $last_rev,
3296 0, 0, 1, sub { });
3297 };
3298 next if $@;
3299 $new_urls->{$ra->{repos_root}}->{$new} =
3300 { ref_id => $ref_id,
3301 old_repo_id => $repo_id,
3302 old_path => $path };
3303 }
3304 }
3305 my @emptied;
3307 foreach my $url (keys %$new_urls) {
3308 # see if we can re-use an existing [svn-remote "repo_id"]
3309 # instead of creating a(n ugly) new section:
3310 my $repo_id = $root_repos->{$url} ||
3311 Git::SVN::sanitize_remote_name($url);
3312 my $fetch = $new_urls->{$url};
3314 foreach my $path (keys %$fetch) {
3315 my $x = $fetch->{$path};
3316 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
3317 my $pfx = "svn-remote.$x->{old_repo_id}";
3318 my $old_fetch = quotemeta("$x->{old_path}:".
3320 "refs/remotes/$x->{ref_id}");
3321 command_noisy(qw/config --unset/,
3322 "$pfx.fetch", '^'. $old_fetch . '$');
3323 delete $r->{$x->{old_repo_id}}->
3324 {fetch}->{$x->{old_path}};
3325 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
3326 command_noisy(qw/config --unset/,
3327 "$pfx.url");
3328 push @emptied, $x->{old_repo_id}
3329 }
3330 }
3331 }
3332 if (@emptied) {
3333 my $file = $ENV{GIT_CONFIG} || $ENV{GIT_CONFIG_LOCAL} ||
3334 "$ENV{GIT_DIR}/config";
3335 print STDERR <<EOF;
3336The following [svn-remote] sections in your config file ($file) are empty
3337and can be safely removed:
3338EOF
3339 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
3340 }
3341}
3342sub migration_check {
3344 migrate_from_v0();
3345 migrate_from_v1();
3346 migrate_from_v2();
3347 minimize_connections() if $_minimize;
3348}
3349package Git::IndexInfo;
3351use strict;
3352use warnings;
3353use Git qw/command_input_pipe command_close_pipe/;
3354sub new {
3356 my ($class) = @_;
3357 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
3358 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
3359}
3360sub remove {
3362 my ($self, $path) = @_;
3363 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
3364 return ++$self->{nr};
3365 }
3366 undef;
3367}
3368sub update {
3370 my ($self, $mode, $hash, $path) = @_;
3371 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
3372 return ++$self->{nr};
3373 }
3374 undef;
3375}
3376sub DESTROY {
3378 my ($self) = @_;
3379 command_close_pipe($self->{gui}, $self->{ctx});
3380}
3381package Git::SVN::GlobSpec;
3383use strict;
3384use warnings;
3385sub new {
3387 my ($class, $glob) = @_;
3388 my $re = $glob;
3389 $re =~ s!/+$!!g; # no need for trailing slashes
3390 my $nr = ($re =~ s!^(.*)\*(.*)$!\(\[^/\]+\)!g);
3391 my ($left, $right) = ($1, $2);
3392 if ($nr > 1) {
3393 die "Only one '*' wildcard expansion ",
3394 "is supported (got $nr): '$glob'\n";
3395 } elsif ($nr == 0) {
3396 die "One '*' is needed for glob: '$glob'\n";
3397 }
3398 $re = quotemeta($left) . $re . quotemeta($right);
3399 if (length $left && !($left =~ s!/+$!!g)) {
3400 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
3401 }
3402 if (length $right && !($right =~ s!^/+!!g)) {
3403 die "Missing leading '/' on right side of: '$glob' ($right)\n";
3404 }
3405 my $left_re = qr/^\/\Q$left\E(\/|$)/;
3406 bless { left => $left, right => $right, left_regex => $left_re,
3407 regex => qr/$re/, glob => $glob }, $class;
3408}
3409sub full_path {
3411 my ($self, $path) = @_;
3412 return (length $self->{left} ? "$self->{left}/" : '') .
3413 $path . (length $self->{right} ? "/$self->{right}" : '');
3414}
3415__END__
3417Data structures:
3419$remotes = { # returned by read_all_remotes()
3422 'svn' => {
3423 # svn-remote.svn.url=https://svn.musicpd.org
3424 url => 'https://svn.musicpd.org',
3425 # svn-remote.svn.fetch=mpd/trunk:trunk
3426 fetch => {
3427 'mpd/trunk' => 'trunk',
3428 },
3429 # svn-remote.svn.tags=mpd/tags/*:tags/*
3430 tags => {
3431 path => {
3432 left => 'mpd/tags',
3433 right => '',
3434 regex => qr!mpd/tags/([^/]+)$!,
3435 glob => 'tags/*',
3436 },
3437 ref => {
3438 left => 'tags',
3439 right => '',
3440 regex => qr!tags/([^/]+)$!,
3441 glob => 'tags/*',
3442 },
3443 }
3444 }
3445};
3446$log_entry hashref as returned by libsvn_log_entry()
3448{
3449 log => 'whitespace-formatted log entry
3450', # trailing newline is preserved
3451 revision => '8', # integer
3452 date => '2004-02-24T17:01:44.108345Z', # commit date
3453 author => 'committer name'
3454};
3455# this is generated by generate_diff();
3458@mods = array of diff-index line hashes, each element represents one line
3459 of diff-index output
3460diff-index line ($m hash)
3462{
3463 mode_a => first column of diff-index output, no leading ':',
3464 mode_b => second column of diff-index output,
3465 sha1_b => sha1sum of the final blob,
3466 chg => change type [MCRADT],
3467 file_a => original file name of a file (iff chg is 'C' or 'R')
3468 file_b => new/current file name of a file (any chg)
3469}
3470;
3471# retval of read_url_paths{,_all}();
3473$l_map = {
3474 # repository root url
3475 'https://svn.musicpd.org' => {
3476 # repository path # GIT_SVN_ID
3477 'mpd/trunk' => 'trunk',
3478 'mpd/tags/0.11.5' => 'tags/0.11.5',
3479 },
3480}
3481Notes:
3483 I don't trust the each() function on unless I created %hash myself
3484 because the internal iterator may not have started at base.