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git-svn: cleanup remove unused function
[git/gitweb.git] / git-svn.perl
blob7249d6f41706e7d72cae0fedc33e3213170e2e08
1 #!/usr/bin/env perl
2 # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3 # License: GPL v2 or later
4 use warnings;
5 use strict;
6 use vars qw/ $AUTHOR $VERSION
7 $SVN_URL
8 $GIT_SVN_INDEX $GIT_SVN
9 $GIT_DIR $GIT_SVN_DIR $REVDB
10 $_follow_parent $sha1 $sha1_short $_revision
11 $_cp_remote $_upgrade $_rmdir $_q $_cp_similarity
12 $_find_copies_harder $_l $_authors %users/;
13 $AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
14 $VERSION = '@@GIT_VERSION@@';
15
16 $ENV{GIT_DIR} ||= '.git';
17 $Git::SVN::default_repo_id = 'git-svn';
18 $Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
19
20 my $LC_ALL = $ENV{LC_ALL};
21 $Git::SVN::Log::TZ = $ENV{TZ};
22 # make sure the svn binary gives consistent output between locales and TZs:
23 $ENV{TZ} = 'UTC';
24 $ENV{LC_ALL} = 'C';
25 $| = 1; # unbuffer STDOUT
26
27 sub fatal (@) { print STDERR @_; exit 1 }
28 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
29 require SVN::Ra;
30 require SVN::Delta;
31 if ($SVN::Core::VERSION lt '1.1.0') {
32 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)\n";
33 }
34 push @Git::SVN::Ra::ISA, 'SVN::Ra';
35 push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
36 push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
37 use Carp qw/croak/;
38 use IO::File qw//;
39 use File::Basename qw/dirname basename/;
40 use File::Path qw/mkpath/;
41 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
42 use IPC::Open3;
43 use Git;
44
45 BEGIN {
46 my $s;
47 foreach (qw/command command_oneline command_noisy command_output_pipe
48 command_input_pipe command_close_pipe/) {
49 $s .= "*SVN::Git::Editor::$_ = *SVN::Git::Fetcher::$_ = ".
50 "*Git::SVN::Migration::$_ = ".
51 "*Git::SVN::Log::$_ = *Git::SVN::$_ = *$_ = *Git::$_; ";
52 }
53 eval $s;
54 }
55
56 my ($SVN);
57
58 my $_optimize_commits = 1 unless $ENV{GIT_SVN_NO_OPTIMIZE_COMMITS};
59 $sha1 = qr/[a-f\d]{40}/;
60 $sha1_short = qr/[a-f\d]{4,40}/;
61 my ($_stdin, $_help, $_edit,
62 $_repack, $_repack_nr, $_repack_flags,
63 $_message, $_file, $_no_metadata,
64 $_template, $_shared,
65 $_version, $_upgrade,
66 $_merge, $_strategy, $_dry_run,
67 $_prefix);
68
69 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
70 'config-dir=s' => \$Git::SVN::Ra::config_dir,
71 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache );
72 my %fc_opts = ( 'follow-parent|follow' => \$_follow_parent,
73 'authors-file|A=s' => \$_authors,
74 'repack:i' => \$_repack,
75 'no-metadata' => \$_no_metadata,
76 'quiet|q' => \$_q,
77 'repack-flags|repack-args|repack-opts=s' => \$_repack_flags,
78 %remote_opts );
79
80 my ($_trunk, $_tags, $_branches);
81 my %multi_opts = ( 'trunk|T=s' => \$_trunk,
82 'tags|t=s' => \$_tags,
83 'branches|b=s' => \$_branches );
84 my %init_opts = ( 'template=s' => \$_template, 'shared' => \$_shared );
85 my %cmt_opts = ( 'edit|e' => \$_edit,
86 'rmdir' => \$_rmdir,
87 'find-copies-harder' => \$_find_copies_harder,
88 'l=i' => \$_l,
89 'copy-similarity|C=i'=> \$_cp_similarity
90 );
91
92 my %cmd = (
93 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
94 { 'revision|r=s' => \$_revision, %fc_opts } ],
95 init => [ \&cmd_init, "Initialize a repo for tracking" .
96 " (requires URL argument)",
97 \%init_opts ],
98 dcommit => [ \&cmd_dcommit,
99 'Commit several diffs to merge with upstream',
100 { 'merge|m|M' => \$_merge,
101 'strategy|s=s' => \$_strategy,
102 'dry-run|n' => \$_dry_run,
103 %cmt_opts, %fc_opts } ],
104 'set-tree' => [ \&cmd_set_tree,
105 "Set an SVN repository to a git tree-ish",
106 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
107 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
108 { 'revision|r=i' => \$_revision } ],
109 rebuild => [ \&cmd_rebuild, "Rebuild git-svn metadata (after git clone)",
110 { 'copy-remote|remote=s' => \$_cp_remote,
111 'upgrade' => \$_upgrade } ],
112 'multi-init' => [ \&cmd_multi_init,
113 'Initialize multiple trees (like git-svnimport)',
114 { %multi_opts, %init_opts, %remote_opts,
115 'revision|r=i' => \$_revision,
116 'prefix=s' => \$_prefix,
117 } ],
118 'multi-fetch' => [ \&cmd_multi_fetch,
119 'Fetch multiple trees (like git-svnimport)',
120 \%fc_opts ],
121 'migrate' => [ sub { },
122 # no-op, we automatically run this anyways,
123 'Migrate configuration/metadata/layout from
124 previous versions of git-svn',
125 \%remote_opts ],
126 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
127 { 'limit=i' => \$Git::SVN::Log::limit,
128 'revision|r=s' => \$_revision,
129 'verbose|v' => \$Git::SVN::Log::verbose,
130 'incremental' => \$Git::SVN::Log::incremental,
131 'oneline' => \$Git::SVN::Log::oneline,
132 'show-commit' => \$Git::SVN::Log::show_commit,
133 'non-recursive' => \$Git::SVN::Log::non_recursive,
134 'authors-file|A=s' => \$_authors,
135 'color' => \$Git::SVN::Log::color,
136 'pager=s' => \$Git::SVN::Log::pager,
137 } ],
138 'commit-diff' => [ \&cmd_commit_diff,
139 'Commit a diff between two trees',
140 { 'message|m=s' => \$_message,
141 'file|F=s' => \$_file,
142 'revision|r=s' => \$_revision,
143 %cmt_opts } ],
144 );
145
146 my $cmd;
147 for (my $i = 0; $i < @ARGV; $i++) {
148 if (defined $cmd{$ARGV[$i]}) {
149 $cmd = $ARGV[$i];
150 splice @ARGV, $i, 1;
151 last;
152 }
153 };
154
155 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
156
157 read_repo_config(\%opts);
158 my $rv = GetOptions(%opts, 'help|H|h' => \$_help,
159 'version|V' => \$_version,
160 'minimize-connections' =>
161 \$Git::SVN::Migration::_minimize,
162 'id|i=s' => \$Git::SVN::default_ref_id);
163 exit 1 if (!$rv && $cmd ne 'log');
164
165 usage(0) if $_help;
166 version() if $_version;
167 usage(1) unless defined $cmd;
168 load_authors() if $_authors;
169 unless ($cmd =~ /^(?:init|rebuild|multi-init|commit-diff)$/) {
170 Git::SVN::Migration::migration_check();
171 }
172 eval {
173 Git::SVN::verify_remotes_sanity();
174 $cmd{$cmd}->[0]->(@ARGV);
175 };
176 fatal $@ if $@;
177 exit 0;
178
179 ####################### primary functions ######################
180 sub usage {
181 my $exit = shift || 0;
182 my $fd = $exit ? \*STDERR : \*STDOUT;
183 print $fd <<"";
184 git-svn - bidirectional operations between a single Subversion tree and git
185 Usage: $0 <command> [options] [arguments]\n
186
187 print $fd "Available commands:\n" unless $cmd;
188
189 foreach (sort keys %cmd) {
190 next if $cmd && $cmd ne $_;
191 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
192 foreach (keys %{$cmd{$_}->[2]}) {
193 # prints out arguments as they should be passed:
194 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
195 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
196 "--$_" : "-$_" }
197 split /\|/,$_)," $x\n";
198 }
199 }
200 print $fd <<"";
201 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
202 arbitrary identifier if you're tracking multiple SVN branches/repositories in
203 one git repository and want to keep them separate. See git-svn(1) for more
204 information.
205
206 exit $exit;
207 }
208
209 sub version {
210 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
211 exit 0;
212 }
213
214 sub cmd_rebuild {
215 my $url = shift;
216 my $gs = $url ? Git::SVN->init($url)
217 : eval { Git::SVN->new };
218 $gs ||= Git::SVN->_new;
219 if (!verify_ref($gs->refname.'^0')) {
220 $gs->copy_remote_ref;
221 }
222
223 my ($rev_list, $ctx) = command_output_pipe("rev-list", $gs->refname);
224 my $latest;
225 my $svn_uuid;
226 while (<$rev_list>) {
227 chomp;
228 my $c = $_;
229 fatal "Non-SHA1: $c\n" unless $c =~ /^$sha1$/o;
230 my ($url, $rev, $uuid) = cmt_metadata($c);
231
232 # ignore merges (from set-tree)
233 next if (!defined $rev || !$uuid);
234
235 # if we merged or otherwise started elsewhere, this is
236 # how we break out of it
237 if ((defined $svn_uuid && ($uuid ne $svn_uuid)) ||
238 ($gs->{url} && $url && ($url ne $gs->{url}))) {
239 next;
240 }
241
242 unless (defined $latest) {
243 if (!$gs->{url} && !$url) {
244 fatal "SVN repository location required\n";
245 }
246 $gs = Git::SVN->init($url);
247 $latest = $rev;
248 }
249 $gs->rev_db_set($rev, $c);
250 print "r$rev = $c\n";
251 }
252 command_close_pipe($rev_list, $ctx);
253 }
254
255 sub do_git_init_db {
256 unless (-d $ENV{GIT_DIR}) {
257 my @init_db = ('init');
258 push @init_db, "--template=$_template" if defined $_template;
259 push @init_db, "--shared" if defined $_shared;
260 command_noisy(@init_db);
261 }
262 }
263
264 sub cmd_init {
265 my $url = shift or die "SVN repository location required " .
266 "as a command-line argument\n";
267 if (my $repo_path = shift) {
268 unless (-d $repo_path) {
269 mkpath([$repo_path]);
270 }
271 chdir $repo_path or croak $!;
272 $ENV{GIT_DIR} = $repo_path . "/.git";
273 }
274 do_git_init_db();
275
276 Git::SVN->init($url);
277 }
278
279 sub cmd_fetch {
280 if (@_) {
281 die "Additional fetch arguments are no longer supported.\n",
282 "Use --follow-parent if you have moved/copied directories
283 instead.\n";
284 }
285 my $gs = Git::SVN->new;
286 $gs->fetch(parse_revision_argument());
287 if ($gs->{last_commit} && !verify_ref('refs/heads/master^0')) {
288 command_noisy(qw(update-ref refs/heads/master),
289 $gs->{last_commit});
290 }
291 }
292
293 sub cmd_set_tree {
294 my (@commits) = @_;
295 if ($_stdin || !@commits) {
296 print "Reading from stdin...\n";
297 @commits = ();
298 while (<STDIN>) {
299 if (/\b($sha1_short)\b/o) {
300 unshift @commits, $1;
301 }
302 }
303 }
304 my @revs;
305 foreach my $c (@commits) {
306 my @tmp = command('rev-parse',$c);
307 if (scalar @tmp == 1) {
308 push @revs, $tmp[0];
309 } elsif (scalar @tmp > 1) {
310 push @revs, reverse(command('rev-list',@tmp));
311 } else {
312 fatal "Failed to rev-parse $c\n";
313 }
314 }
315 my $gs = Git::SVN->new;
316 my ($r_last, $cmt_last) = $gs->last_rev_commit;
317 $gs->fetch;
318 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
319 fatal "There are new revisions that were fetched ",
320 "and need to be merged (or acknowledged) ",
321 "before committing.\nlast rev: $r_last\n",
322 " current: $gs->{last_rev}\n";
323 }
324 $gs->set_tree($_) foreach @revs;
325 print "Done committing ",scalar @revs," revisions to SVN\n";
326 }
327
328 sub cmd_dcommit {
329 my $head = shift;
330 my $gs = Git::SVN->new;
331 $head ||= 'HEAD';
332 my @refs = command(qw/rev-list --no-merges/, $gs->refname."..$head");
333 my $last_rev;
334 foreach my $d (reverse @refs) {
335 if (!verify_ref("$d~1")) {
336 fatal "Commit $d\n",
337 "has no parent commit, and therefore ",
338 "nothing to diff against.\n",
339 "You should be working from a repository ",
340 "originally created by git-svn\n";
341 }
342 unless (defined $last_rev) {
343 (undef, $last_rev, undef) = cmt_metadata("$d~1");
344 unless (defined $last_rev) {
345 fatal "Unable to extract revision information ",
346 "from commit $d~1\n";
347 }
348 }
349 if ($_dry_run) {
350 print "diff-tree $d~1 $d\n";
351 } else {
352 my %ed_opts = ( r => $last_rev,
353 log => get_commit_entry($d)->{log},
354 ra => $gs->ra,
355 tree_a => "$d~1",
356 tree_b => $d,
357 editor_cb => sub {
358 print "Committed r$_[0]\n";
359 $last_rev = $_[0]; },
360 svn_path => $gs->{path} );
361 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
362 print "No changes\n$d~1 == $d\n";
363 }
364 }
365 }
366 return if $_dry_run;
367 $gs->fetch;
368 # we always want to rebase against the current HEAD, not any
369 # head that was passed to us
370 my @diff = command('diff-tree', 'HEAD', $gs->refname, '--');
371 my @finish;
372 if (@diff) {
373 @finish = qw/rebase/;
374 push @finish, qw/--merge/ if $_merge;
375 push @finish, "--strategy=$_strategy" if $_strategy;
376 print STDERR "W: HEAD and ", $gs->refname, " differ, ",
377 "using @finish:\n", "@diff";
378 } else {
379 print "No changes between current HEAD and ",
380 $gs->refname, "\nResetting to the latest ",
381 $gs->refname, "\n";
382 @finish = qw/reset --mixed/;
383 }
384 command_noisy(@finish, $gs->refname);
385 }
386
387 sub cmd_show_ignore {
388 my $gs = Git::SVN->new;
389 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
390 $gs->traverse_ignore(\*STDOUT, '', $r);
391 }
392
393 sub cmd_multi_init {
394 my $url = shift;
395 unless (defined $_trunk || defined $_branches || defined $_tags) {
396 usage(1);
397 }
398 do_git_init_db();
399 $_prefix = '' unless defined $_prefix;
400 $url =~ s#/+$## if defined $url;
401 if (defined $_trunk) {
402 my $trunk_ref = $_prefix . 'trunk';
403 # try both old-style and new-style lookups:
404 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
405 unless ($gs_trunk) {
406 my ($trunk_url, $trunk_path) =
407 complete_svn_url($url, $_trunk);
408 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
409 undef, $trunk_ref);
410 }
411 }
412 return unless defined $_branches || defined $_tags;
413 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
414 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
415 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
416 }
417
418 sub cmd_multi_fetch {
419 my @gs;
420 foreach (command(qw/config -l/)) {
421 next unless m!^svn-remote\.(.+)\.fetch=
422 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
423 my ($repo_id, $path, $ref_id) = ($1, $2, $3);
424 push @gs, Git::SVN->new($ref_id, $repo_id, $path);
425 }
426 foreach (@gs) {
427 $_->fetch;
428 }
429 }
430
431 # this command is special because it requires no metadata
432 sub cmd_commit_diff {
433 my ($ta, $tb, $url) = @_;
434 my $usage = "Usage: $0 commit-diff -r<revision> ".
435 "<tree-ish> <tree-ish> [<URL>]\n";
436 fatal($usage) if (!defined $ta || !defined $tb);
437 my $svn_path;
438 if (!defined $url) {
439 my $gs = eval { Git::SVN->new };
440 if (!$gs) {
441 fatal("Needed URL or usable git-svn --id in ",
442 "the command-line\n", $usage);
443 }
444 $url = $gs->{url};
445 $svn_path = $gs->{path};
446 }
447 unless (defined $_revision) {
448 fatal("-r|--revision is a required argument\n", $usage);
449 }
450 if (defined $_message && defined $_file) {
451 fatal("Both --message/-m and --file/-F specified ",
452 "for the commit message.\n",
453 "I have no idea what you mean\n");
454 }
455 if (defined $_file) {
456 $_message = file_to_s($_file);
457 } else {
458 $_message ||= get_commit_entry($tb)->{log};
459 }
460 my $ra ||= Git::SVN::Ra->new($url);
461 $svn_path ||= $ra->{svn_path};
462 my $r = $_revision;
463 if ($r eq 'HEAD') {
464 $r = $ra->get_latest_revnum;
465 } elsif ($r !~ /^\d+$/) {
466 die "revision argument: $r not understood by git-svn\n";
467 }
468 my %ed_opts = ( r => $r,
469 log => $_message,
470 ra => $ra,
471 tree_a => $ta,
472 tree_b => $tb,
473 editor_cb => sub { print "Committed r$_[0]\n" },
474 svn_path => $svn_path );
475 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
476 print "No changes\n$ta == $tb\n";
477 }
478 }
479
480 ########################### utility functions #########################
481
482 sub parse_revision_argument {
483 if (!defined $_revision || $_revision eq 'BASE:HEAD') {
484 return (undef, undef);
485 }
486 return ($1, $2) if ($_revision =~ /^(\d+):(\d+)$/);
487 return ($_revision, $_revision) if ($_revision =~ /^\d+$/);
488 return (undef, $1) if ($_revision =~ /^BASE:(\d+)$/);
489 return ($1, undef) if ($_revision =~ /^(\d+):HEAD$/);
490 die "revision argument: $_revision not understood by git-svn\n",
491 "Try using the command-line svn client instead\n";
492 }
493
494 sub complete_svn_url {
495 my ($url, $path) = @_;
496 $path =~ s#/+$##;
497 if ($path !~ m#^[a-z\+]+://#) {
498 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
499 fatal("E: '$path' is not a complete URL ",
500 "and a separate URL is not specified\n");
501 }
502 return ($url, $path);
503 }
504 return ($path, '');
505 }
506
507 sub complete_url_ls_init {
508 my ($ra, $repo_path, $switch, $pfx) = @_;
509 unless ($repo_path) {
510 print STDERR "W: $switch not specified\n";
511 return;
512 }
513 $repo_path =~ s#/+$##;
514 if ($repo_path =~ m#^[a-z\+]+://#) {
515 $ra = Git::SVN::Ra->new($repo_path);
516 $repo_path = '';
517 } else {
518 $repo_path =~ s#^/+##;
519 unless ($ra) {
520 fatal("E: '$repo_path' is not a complete URL ",
521 "and a separate URL is not specified\n");
522 }
523 }
524 my $r = defined $_revision ? $_revision : $ra->get_latest_revnum;
525 my ($dirent, undef, undef) = $ra->get_dir($repo_path, $r);
526 my $url = $ra->{url};
527 foreach my $d (sort keys %$dirent) {
528 next if ($dirent->{$d}->kind != $SVN::Node::dir);
529 my $path = "$repo_path/$d";
530 my $ref = "$pfx$d";
531 my $gs = eval { Git::SVN->new($ref) };
532 # don't try to init already existing refs
533 unless ($gs) {
534 print "init $url/$path => $ref\n";
535 Git::SVN->init($url, $path, undef, $ref);
536 }
537 }
538 }
539
540 sub verify_ref {
541 my ($ref) = @_;
542 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
543 { STDERR => 0 }); };
544 }
545
546 sub get_tree_from_treeish {
547 my ($treeish) = @_;
548 # $treeish can be a symbolic ref, too:
549 my $type = command_oneline(qw/cat-file -t/, $treeish);
550 my $expected;
551 while ($type eq 'tag') {
552 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
553 }
554 if ($type eq 'commit') {
555 $expected = (grep /^tree /, command(qw/cat-file commit/,
556 $treeish))[0];
557 ($expected) = ($expected =~ /^tree ($sha1)$/o);
558 die "Unable to get tree from $treeish\n" unless $expected;
559 } elsif ($type eq 'tree') {
560 $expected = $treeish;
561 } else {
562 die "$treeish is a $type, expected tree, tag or commit\n";
563 }
564 return $expected;
565 }
566
567 sub get_commit_entry {
568 my ($treeish) = shift;
569 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
570 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
571 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
572 open my $log_fh, '>', $commit_editmsg or croak $!;
573
574 my $type = command_oneline(qw/cat-file -t/, $treeish);
575 if ($type eq 'commit' || $type eq 'tag') {
576 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
577 $type, $treeish);
578 my $in_msg = 0;
579 while (<$msg_fh>) {
580 if (!$in_msg) {
581 $in_msg = 1 if (/^\s*$/);
582 } elsif (/^git-svn-id: /) {
583 # skip this for now, we regenerate the
584 # correct one on re-fetch anyways
585 # TODO: set *:merge properties or like...
586 } else {
587 print $log_fh $_ or croak $!;
588 }
589 }
590 command_close_pipe($msg_fh, $ctx);
591 }
592 close $log_fh or croak $!;
593
594 if ($_edit || ($type eq 'tree')) {
595 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
596 # TODO: strip out spaces, comments, like git-commit.sh
597 system($editor, $commit_editmsg);
598 }
599 rename $commit_editmsg, $commit_msg or croak $!;
600 open $log_fh, '<', $commit_msg or croak $!;
601 { local $/; chomp($log_entry{log} = <$log_fh>); }
602 close $log_fh or croak $!;
603 unlink $commit_msg;
604 \%log_entry;
605 }
606
607 sub s_to_file {
608 my ($str, $file, $mode) = @_;
609 open my $fd,'>',$file or croak $!;
610 print $fd $str,"\n" or croak $!;
611 close $fd or croak $!;
612 chmod ($mode &~ umask, $file) if (defined $mode);
613 }
614
615 sub file_to_s {
616 my $file = shift;
617 open my $fd,'<',$file or croak "$!: file: $file\n";
618 local $/;
619 my $ret = <$fd>;
620 close $fd or croak $!;
621 $ret =~ s/\s*$//s;
622 return $ret;
623 }
624
625 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
626 sub load_authors {
627 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
628 my $log = $cmd eq 'log';
629 while (<$authors>) {
630 chomp;
631 next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
632 my ($user, $name, $email) = ($1, $2, $3);
633 if ($log) {
634 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
635 } else {
636 $users{$user} = [$name, $email];
637 }
638 }
639 close $authors or croak $!;
640 }
641
642 # convert GetOpt::Long specs for use by git-config
643 sub read_repo_config {
644 return unless -d $ENV{GIT_DIR};
645 my $opts = shift;
646 foreach my $o (keys %$opts) {
647 my $v = $opts->{$o};
648 my ($key) = ($o =~ /^([a-z\-]+)/);
649 $key =~ s/-//g;
650 my $arg = 'git-config';
651 $arg .= ' --int' if ($o =~ /[:=]i$/);
652 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
653 if (ref $v eq 'ARRAY') {
654 chomp(my @tmp = `$arg --get-all svn.$key`);
655 @$v = @tmp if @tmp;
656 } else {
657 chomp(my $tmp = `$arg --get svn.$key`);
658 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
659 $$v = $tmp;
660 }
661 }
662 }
663 }
664
665 sub extract_metadata {
666 my $id = shift or return (undef, undef, undef);
667 my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
668 \s([a-f\d\-]+)$/x);
669 if (!defined $rev || !$uuid || !$url) {
670 # some of the original repositories I made had
671 # identifiers like this:
672 ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
673 }
674 return ($url, $rev, $uuid);
675 }
676
677 sub cmt_metadata {
678 return extract_metadata((grep(/^git-svn-id: /,
679 command(qw/cat-file commit/, shift)))[-1]);
680 }
681
682 package Git::SVN;
683 use strict;
684 use warnings;
685 use vars qw/$default_repo_id $default_ref_id/;
686 use Carp qw/croak/;
687 use File::Path qw/mkpath/;
688 use IPC::Open3;
689
690 # properties that we do not log:
691 my %SKIP_PROP;
692 BEGIN {
693 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
694 svn:special svn:executable
695 svn:entry:committed-rev
696 svn:entry:last-author
697 svn:entry:uuid
698 svn:entry:committed-date/;
699 }
700
701 sub read_all_remotes {
702 my $r = {};
703 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
704 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
705 $r->{$1}->{fetch}->{$2} = $3;
706 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
707 $r->{$1}->{url} = $2;
708 }
709 }
710 $r;
711 }
712
713 sub verify_remotes_sanity {
714 return unless -d $ENV{GIT_DIR};
715 my %seen;
716 foreach (command(qw/config -l/)) {
717 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
718 if ($seen{$1}) {
719 die "Remote ref refs/remote/$1 is tracked by",
720 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
721 "Please resolve this ambiguity in ",
722 "your git configuration file before ",
723 "continuing\n";
724 }
725 $seen{$1} = $_;
726 }
727 }
728 }
729
730 # we allow more chars than remotes2config.sh...
731 sub sanitize_remote_name {
732 my ($name) = @_;
733 $name =~ tr{A-Za-z0-9:,/+-}{.}c;
734 $name;
735 }
736
737 sub find_existing_remote {
738 my ($url, $remotes) = @_;
739 my $existing;
740 foreach my $repo_id (keys %$remotes) {
741 my $u = $remotes->{$repo_id}->{url} or next;
742 next if $u ne $url;
743 $existing = $repo_id;
744 last;
745 }
746 $existing;
747 }
748
749 sub init_remote_config {
750 my ($self, $url) = @_;
751 $url =~ s!/+$!!; # strip trailing slash
752 my $r = read_all_remotes();
753 my $existing = find_existing_remote($url, $r);
754 if ($existing) {
755 print STDERR "Using existing ",
756 "[svn-remote \"$existing\"]\n";
757 $self->{repo_id} = $existing;
758 } else {
759 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
760 $existing = find_existing_remote($min_url, $r);
761 if ($existing) {
762 print STDERR "Using existing ",
763 "[svn-remote \"$existing\"]\n";
764 $self->{repo_id} = $existing;
765 }
766 if ($min_url ne $url) {
767 print STDERR "Using higher level of URL: ",
768 "$url => $min_url\n";
769 my $old_path = $self->{path};
770 $self->{path} = $url;
771 $self->{path} =~ s!^\Q$min_url\E/*!!;
772 if (length $old_path) {
773 $self->{path} .= "/$old_path";
774 }
775 $url = $min_url;
776 }
777 }
778 my $orig_url;
779 if (!$existing) {
780 # verify that we aren't overwriting anything:
781 $orig_url = eval {
782 command_oneline('config', '--get',
783 "svn-remote.$self->{repo_id}.url")
784 };
785 if ($orig_url && ($orig_url ne $url)) {
786 die "svn-remote.$self->{repo_id}.url already set: ",
787 "$orig_url\nwanted to set to: $url\n";
788 }
789 }
790 my ($xrepo_id, $xpath) = find_ref($self->refname);
791 if (defined $xpath) {
792 die "svn-remote.$xrepo_id.fetch already set to track ",
793 "$xpath:refs/remotes/", $self->refname, "\n";
794 }
795 command_noisy('config',
796 "svn-remote.$self->{repo_id}.url", $url);
797 command_noisy('config', '--add',
798 "svn-remote.$self->{repo_id}.fetch",
799 "$self->{path}:".$self->refname);
800 $self->{url} = $url;
801 }
802
803 sub init {
804 my ($class, $url, $path, $repo_id, $ref_id) = @_;
805 my $self = _new($class, $repo_id, $ref_id, $path);
806 if (defined $url) {
807 $self->init_remote_config($url);
808 }
809 $self;
810 }
811
812 sub find_ref {
813 my ($ref_id) = @_;
814 foreach (command(qw/config -l/)) {
815 next unless m!^svn-remote\.(.+)\.fetch=
816 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
817 my ($repo_id, $path, $ref) = ($1, $2, $3);
818 if ($ref eq $ref_id) {
819 $path = '' if ($path =~ m#^\./?#);
820 return ($repo_id, $path);
821 }
822 }
823 (undef, undef, undef);
824 }
825
826 sub new {
827 my ($class, $ref_id, $repo_id, $path) = @_;
828 if (defined $ref_id && !defined $repo_id && !defined $path) {
829 ($repo_id, $path) = find_ref($ref_id);
830 if (!defined $repo_id) {
831 die "Could not find a \"svn-remote.*.fetch\" key ",
832 "in the repository configuration matching: ",
833 "refs/remotes/$ref_id\n";
834 }
835 }
836 my $self = _new($class, $repo_id, $ref_id, $path);
837 if (!defined $self->{path} || !length $self->{path}) {
838 my $fetch = command_oneline('config', '--get',
839 "svn-remote.$repo_id.fetch",
840 ":refs/remotes/$ref_id\$") or
841 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
842 "\":refs/remotes/$ref_id\$\" in config\n";
843 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
844 }
845 $self->{url} = command_oneline('config', '--get',
846 "svn-remote.$repo_id.url") or
847 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
848 $self;
849 }
850
851 sub refname { "refs/remotes/$_[0]->{ref_id}" }
852
853 sub ra {
854 my ($self) = shift;
855 $self->{ra} ||= Git::SVN::Ra->new($self->{url});
856 }
857
858 sub rel_path {
859 my ($self) = @_;
860 my $repos_root = $self->ra->{repos_root};
861 return $self->{path} if ($self->{url} eq $repos_root);
862 my $url = $self->{url} .
863 (length $self->{path} ? "/$self->{path}" : $self->{path});
864 $url =~ s!^\Q$repos_root\E/*!!g;
865 $url;
866 }
867
868 sub copy_remote_ref {
869 my ($self) = @_;
870 my $origin = $::_cp_remote ? $::_cp_remote : 'origin';
871 my $ref = $self->refname;
872 if (command('ls-remote', $origin, $ref)) {
873 command_noisy('fetch', $origin, "$ref:$ref");
874 } elsif ($::_cp_remote && !$::_upgrade) {
875 die "Unable to find remote reference: $ref on $origin\n";
876 }
877 }
878
879 sub traverse_ignore {
880 my ($self, $fh, $path, $r) = @_;
881 $path =~ s#^/+##g;
882 my ($dirent, undef, $props) = $self->ra->get_dir($path, $r);
883 my $p = $path;
884 $p =~ s#^\Q$self->{ra}->{svn_path}\E/##;
885 print $fh length $p ? "\n# $p\n" : "\n# /\n";
886 if (my $s = $props->{'svn:ignore'}) {
887 $s =~ s/[\r\n]+/\n/g;
888 chomp $s;
889 if (length $p == 0) {
890 $s =~ s#\n#\n/$p#g;
891 print $fh "/$s\n";
892 } else {
893 $s =~ s#\n#\n/$p/#g;
894 print $fh "/$p/$s\n";
895 }
896 }
897 foreach (sort keys %$dirent) {
898 next if $dirent->{$_}->kind != $SVN::Node::dir;
899 $self->traverse_ignore($fh, "$path/$_", $r);
900 }
901 }
902
903 sub last_rev { ($_[0]->last_rev_commit)[0] }
904 sub last_commit { ($_[0]->last_rev_commit)[1] }
905
906 # returns the newest SVN revision number and newest commit SHA1
907 sub last_rev_commit {
908 my ($self) = @_;
909 if (defined $self->{last_rev} && defined $self->{last_commit}) {
910 return ($self->{last_rev}, $self->{last_commit});
911 }
912 my $c = ::verify_ref($self->refname.'^0');
913 if ($c) {
914 my $rev = (::cmt_metadata($c))[1];
915 if (defined $rev) {
916 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
917 return ($rev, $c);
918 }
919 }
920 my $offset = -41; # from tail
921 my $rl;
922 open my $fh, '<', $self->{db_path} or
923 croak "$self->{db_path} not readable: $!\n";
924 seek $fh, $offset, 2;
925 $rl = readline $fh;
926 defined $rl or return (undef, undef);
927 chomp $rl;
928 while ($c ne $rl && tell $fh != 0) {
929 $offset -= 41;
930 seek $fh, $offset, 2;
931 $rl = readline $fh;
932 defined $rl or return (undef, undef);
933 chomp $rl;
934 }
935 my $rev = tell $fh;
936 croak $! if ($rev < 0);
937 $rev = ($rev - 41) / 41;
938 close $fh or croak $!;
939 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
940 return ($rev, $c);
941 }
942
943 sub get_fetch_range {
944 my ($self, $min, $max) = @_;
945 $max ||= $self->ra->get_latest_revnum;
946 $min ||= $self->last_rev || 0;
947 (++$min, $max);
948 }
949
950 sub tmp_index_do {
951 my ($self, $sub) = @_;
952 my $old_index = $ENV{GIT_INDEX_FILE};
953 $ENV{GIT_INDEX_FILE} = $self->{index};
954 my @ret = &$sub;
955 if ($old_index) {
956 $ENV{GIT_INDEX_FILE} = $old_index;
957 } else {
958 delete $ENV{GIT_INDEX_FILE};
959 }
960 wantarray ? @ret : $ret[0];
961 }
962
963 sub assert_index_clean {
964 my ($self, $treeish) = @_;
965
966 $self->tmp_index_do(sub {
967 command_noisy('read-tree', $treeish) unless -e $self->{index};
968 my $x = command_oneline('write-tree');
969 my ($y) = (command(qw/cat-file commit/, $treeish) =~
970 /^tree ($::sha1)/mo);
971 if ($y ne $x) {
972 unlink $self->{index} or croak $!;
973 command_noisy('read-tree', $treeish);
974 }
975 $x = command_oneline('write-tree');
976 if ($y ne $x) {
977 ::fatal "trees ($treeish) $y != $x\n",
978 "Something is seriously wrong...\n";
979 }
980 });
981 }
982
983 sub get_commit_parents {
984 my ($self, $log_entry, @parents) = @_;
985 my (%seen, @ret, @tmp);
986 # commit parents can be conditionally bound to a particular
987 # svn revision via: "svn_revno=commit_sha1", filter them out here:
988 foreach my $p (@parents) {
989 next unless defined $p;
990 if ($p =~ /^(\d+)=($::sha1_short)$/o) {
991 push @tmp, $2 if $1 == $log_entry->{revision};
992 } else {
993 push @tmp, $p if $p =~ /^$::sha1_short$/o;
994 }
995 }
996 if (my $cur = ::verify_ref($self->refname.'^0')) {
997 push @tmp, $cur;
998 }
999 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
1000 while (my $p = shift @tmp) {
1001 next if $seen{$p};
1002 $seen{$p} = 1;
1003 push @ret, $p;
1004 # MAXPARENT is defined to 16 in commit-tree.c:
1005 last if @ret >= 16;
1006 }
1007 if (@tmp) {
1008 die "r$log_entry->{revision}: No room for parents:\n\t",
1009 join("\n\t", @tmp), "\n";
1010 }
1011 @ret;
1012 }
1013
1014 sub full_url {
1015 my ($self) = @_;
1016 $self->ra->{url} . (length $self->{path} ? '/' . $self->{path} : '');
1017 }
1018
1019 sub do_git_commit {
1020 my ($self, $log_entry, @parents) = @_;
1021 if (my $c = $self->rev_db_get($log_entry->{revision})) {
1022 croak "$log_entry->{revision} = $c already exists! ",
1023 "Why are we refetching it?\n";
1024 }
1025 my $author = $log_entry->{author};
1026 my ($name, $email) = (defined $::users{$author} ? @{$::users{$author}}
1027 : ($author, "$author\@".$self->ra->uuid));
1028 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $name;
1029 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} = $email;
1030 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
1031
1032 my $tree = $log_entry->{tree};
1033 if (!defined $tree) {
1034 $tree = $self->tmp_index_do(sub {
1035 command_oneline('write-tree') });
1036 }
1037 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
1038
1039 my @exec = ('git-commit-tree', $tree);
1040 foreach ($self->get_commit_parents($log_entry, @parents)) {
1041 push @exec, '-p', $_;
1042 }
1043 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1044 or croak $!;
1045 print $msg_fh $log_entry->{log} or croak $!;
1046 print $msg_fh "\ngit-svn-id: ", $self->full_url, '@',
1047 $log_entry->{revision}, ' ',
1048 $self->ra->uuid, "\n" or croak $!;
1049 $msg_fh->flush == 0 or croak $!;
1050 close $msg_fh or croak $!;
1051 chomp(my $commit = do { local $/; <$out_fh> });
1052 close $out_fh or croak $!;
1053 waitpid $pid, 0;
1054 croak $? if $?;
1055 if ($commit !~ /^$::sha1$/o) {
1056 die "Failed to commit, invalid sha1: $commit\n";
1057 }
1058
1059 command_noisy('update-ref',$self->refname, $commit);
1060 $self->rev_db_set($log_entry->{revision}, $commit);
1061
1062 $self->{last_rev} = $log_entry->{revision};
1063 $self->{last_commit} = $commit;
1064 print "r$log_entry->{revision} = $commit\n";
1065 return $commit;
1066 }
1067
1068 sub revisions_eq {
1069 my ($self, $r0, $r1) = @_;
1070 return 1 if $r0 == $r1;
1071 my $nr = 0;
1072 $self->ra->get_log([$self->{path}], $r0, $r1,
1073 0, 0, 1, sub { $nr++ });
1074 return 0 if ($nr > 1);
1075 return 1;
1076 }
1077
1078 sub find_parent_branch {
1079 my ($self, $paths, $rev) = @_;
1080 return undef unless $::_follow_parent;
1081 unless (defined $paths) {
1082 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1,
1083 sub { $paths = dup_changed_paths($_[0]) });
1084 }
1085 return undef unless defined $paths;
1086
1087 # look for a parent from another branch:
1088 my @b_path_components = split m#/#, $self->rel_path;
1089 my @a_path_components;
1090 my $i;
1091 while (@b_path_components) {
1092 $i = $paths->{'/'.join('/', @b_path_components)};
1093 last if $i;
1094 unshift(@a_path_components, pop(@b_path_components));
1095 }
1096 goto not_found unless defined $i;
1097 my $branch_from = $i->{copyfrom_path} or goto not_found;
1098 if (@a_path_components) {
1099 print STDERR "branch_from: $branch_from => ";
1100 $branch_from .= '/'.join('/', @a_path_components);
1101 print STDERR $branch_from, "\n";
1102 }
1103 my $r = $i->{copyfrom_rev};
1104 my $repos_root = $self->ra->{repos_root};
1105 my $url = $self->ra->{url};
1106 my $new_url = $repos_root . $branch_from;
1107 print STDERR "Found possible branch point: ",
1108 "$new_url => ", $self->full_url, ", $r\n";
1109 $branch_from =~ s#^/##;
1110 my $remotes = read_all_remotes();
1111 my $gs;
1112 foreach my $repo_id (keys %$remotes) {
1113 my $u = $remotes->{$repo_id}->{url} or next;
1114 next if $url ne $u;
1115 my $fetch = $remotes->{$repo_id}->{fetch};
1116 foreach my $f (keys %$fetch) {
1117 next if $f ne $branch_from;
1118 $gs = Git::SVN->new($fetch->{$f}, $repo_id, $f);
1119 last;
1120 }
1121 last if $gs;
1122 }
1123 unless ($gs) {
1124 my $ref_id = $branch_from;
1125 $ref_id .= "\@$r" if find_ref($ref_id);
1126 # just grow a tail if we're not unique enough :x
1127 $ref_id .= '-' while find_ref($ref_id);
1128 $gs = Git::SVN->init($new_url, '', $ref_id, $ref_id);
1129 }
1130 my ($r0, $parent) = $gs->find_rev_before($r, 1);
1131 if ($::_follow_parent && (!defined $r0 || !defined $parent)) {
1132 $gs->fetch(0, $r);
1133 ($r0, $parent) = $gs->last_rev_commit;
1134 }
1135 if (defined $r0 && defined $parent && $gs->revisions_eq($r0, $r)) {
1136 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
1137 $self->assert_index_clean($parent);
1138 my $ed;
1139 if ($self->ra->can_do_switch) {
1140 print STDERR "Following parent with do_switch\n";
1141 # do_switch works with svn/trunk >= r22312, but that
1142 # is not included with SVN 1.4.2 (the latest version
1143 # at the moment), so we can't rely on it
1144 $self->{last_commit} = $parent;
1145 $ed = SVN::Git::Fetcher->new($self);
1146 $gs->ra->gs_do_switch($r0, $rev, $gs->{path}, 1,
1147 $self->full_url, $ed)
1148 or die "SVN connection failed somewhere...\n";
1149 } else {
1150 print STDERR "Following parent with do_update\n";
1151 $ed = SVN::Git::Fetcher->new($self);
1152 $self->ra->gs_do_update($rev, $rev, $self->{path},
1153 1, $ed)
1154 or die "SVN connection failed somewhere...\n";
1155 }
1156 return $self->make_log_entry($rev, [$parent], $ed);
1157 }
1158 not_found:
1159 print STDERR "Branch parent for path: '/",
1160 $self->rel_path, "' @ r$rev not found:\n";
1161 return undef unless $paths;
1162 print STDERR "Changed paths:\n";
1163 foreach my $x (sort keys %$paths) {
1164 my $p = $paths->{$x};
1165 print STDERR "\t$p->{action}\t$x";
1166 if ($p->{copyfrom_path}) {
1167 print STDERR "(from $p->{copyfrom_path}: ",
1168 "$p->{copyfrom_rev})";
1169 }
1170 print STDERR "\n";
1171 }
1172 print STDERR '-'x72, "\n";
1173 return undef;
1174 }
1175
1176 sub do_fetch {
1177 my ($self, $paths, $rev) = @_;
1178 my $ed;
1179 my ($last_rev, @parents);
1180 if ($self->{last_commit}) {
1181 $ed = SVN::Git::Fetcher->new($self);
1182 $last_rev = $self->{last_rev};
1183 $ed->{c} = $self->{last_commit};
1184 @parents = ($self->{last_commit});
1185 } else {
1186 $last_rev = $rev;
1187 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1188 return $log_entry;
1189 }
1190 $ed = SVN::Git::Fetcher->new($self);
1191 }
1192 unless ($self->ra->gs_do_update($last_rev, $rev,
1193 $self->{path}, 1, $ed)) {
1194 die "SVN connection failed somewhere...\n";
1195 }
1196 $self->make_log_entry($rev, \@parents, $ed);
1197 }
1198
1199 sub get_untracked {
1200 my ($self, $ed) = @_;
1201 my @out;
1202 my $h = $ed->{empty};
1203 foreach (sort keys %$h) {
1204 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
1205 push @out, " $act: " . uri_encode($_);
1206 warn "W: $act: $_\n";
1207 }
1208 foreach my $t (qw/dir_prop file_prop/) {
1209 $h = $ed->{$t} or next;
1210 foreach my $path (sort keys %$h) {
1211 my $ppath = $path eq '' ? '.' : $path;
1212 foreach my $prop (sort keys %{$h->{$path}}) {
1213 next if $SKIP_PROP{$prop};
1214 my $v = $h->{$path}->{$prop};
1215 my $t_ppath_prop = "$t: " .
1216 uri_encode($ppath) . ' ' .
1217 uri_encode($prop);
1218 if (defined $v) {
1219 push @out, " +$t_ppath_prop " .
1220 uri_encode($v);
1221 } else {
1222 push @out, " -$t_ppath_prop";
1223 }
1224 }
1225 }
1226 }
1227 foreach my $t (qw/absent_file absent_directory/) {
1228 $h = $ed->{$t} or next;
1229 foreach my $parent (sort keys %$h) {
1230 foreach my $path (sort @{$h->{$parent}}) {
1231 push @out, " $t: " .
1232 uri_encode("$parent/$path");
1233 warn "W: $t: $parent/$path ",
1234 "Insufficient permissions?\n";
1235 }
1236 }
1237 }
1238 \@out;
1239 }
1240
1241 sub parse_svn_date {
1242 my $date = shift || return '+0000 1970-01-01 00:00:00';
1243 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
1244 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
1245 croak "Unable to parse date: $date\n";
1246 "+0000 $Y-$m-$d $H:$M:$S";
1247 }
1248
1249 sub check_author {
1250 my ($author) = @_;
1251 if (!defined $author || length $author == 0) {
1252 $author = '(no author)';
1253 }
1254 if (defined $::_authors && ! defined $::users{$author}) {
1255 die "Author: $author not defined in $::_authors file\n";
1256 }
1257 $author;
1258 }
1259
1260 sub make_log_entry {
1261 my ($self, $rev, $parents, $ed) = @_;
1262 my $untracked = $self->get_untracked($ed);
1263
1264 return undef if ($ed->{nr} == 0 && scalar @$untracked == 0);
1265
1266 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
1267 print $un "r$rev\n" or croak $!;
1268 print $un $_, "\n" foreach @$untracked;
1269 my %log_entry = ( parents => $parents || [], revision => $rev,
1270 log => '');
1271 my $rp = $self->ra->rev_proplist($rev);
1272 foreach (sort keys %$rp) {
1273 my $v = $rp->{$_};
1274 if (/^svn:(author|date|log)$/) {
1275 $log_entry{$1} = $v;
1276 } else {
1277 print $un " rev_prop: ", uri_encode($_), ' ',
1278 uri_encode($v), "\n";
1279 }
1280 }
1281 close $un or croak $!;
1282
1283 $log_entry{date} = parse_svn_date($log_entry{date});
1284 $log_entry{author} = check_author($log_entry{author});
1285 $log_entry{log} .= "\n";
1286 \%log_entry;
1287 }
1288
1289 sub fetch {
1290 my ($self, $min_rev, $max_rev, @parents) = @_;
1291 my ($last_rev, $last_commit) = $self->last_rev_commit;
1292 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
1293 return if ($base > $head);
1294 if (defined $last_commit) {
1295 $self->assert_index_clean($last_commit);
1296 }
1297 my $inc = 1000;
1298 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
1299 my $err_handler = $SVN::Error::handler;
1300 my $err;
1301 $SVN::Error::handler = sub { ($err) = @_; skip_unknown_revs($err); } ;
1302 while (1) {
1303 my @revs;
1304 $self->ra->get_log([$self->{path}], $min, $max, 0, 1, 1,
1305 sub {
1306 my ($paths, $rev) = @_;
1307 push @revs, [ dup_changed_paths($paths), $rev ];
1308 });
1309 if (! @revs && $err && $max >= $head) {
1310 print STDERR "Branch probably deleted:\n ",
1311 $err->expanded_message,
1312 "\nWill attempt to follow revisions ",
1313 "r$min .. r$max",
1314 "committed before the deletion\n";
1315 @revs = map { [ undef, $_ ] } ($min .. $max);
1316 }
1317 foreach (@revs) {
1318 if (my $log_entry = $self->do_fetch(@$_)) {
1319 $self->do_git_commit($log_entry, @parents);
1320 }
1321 }
1322 last if $max >= $head;
1323 $min = $max + 1;
1324 $max += $inc;
1325 $max = $head if ($max > $head);
1326 }
1327 $SVN::Error::handler = $err_handler;
1328 }
1329
1330 sub set_tree_cb {
1331 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
1332 # TODO: enable and test optimized commits:
1333 if (0 && $rev == ($self->{last_rev} + 1)) {
1334 $log_entry->{revision} = $rev;
1335 $log_entry->{author} = $author;
1336 $self->do_git_commit($log_entry, "$rev=$tree");
1337 } else {
1338 $self->fetch(undef, undef, "$rev=$tree");
1339 }
1340 }
1341
1342 sub set_tree {
1343 my ($self, $tree) = (shift, shift);
1344 my $log_entry = ::get_commit_entry($tree);
1345 unless ($self->{last_rev}) {
1346 fatal("Must have an existing revision to commit\n");
1347 }
1348 my %ed_opts = ( r => $self->{last_rev},
1349 log => $log_entry->{log},
1350 ra => $self->ra,
1351 tree_a => $self->{last_commit},
1352 tree_b => $tree,
1353 editor_cb => sub {
1354 $self->set_tree_cb($log_entry, $tree, @_) },
1355 svn_path => $self->{path} );
1356 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
1357 print "No changes\nr$self->{last_rev} = $tree\n";
1358 }
1359 }
1360
1361 sub skip_unknown_revs {
1362 my ($err) = @_;
1363 my $errno = $err->apr_err();
1364 # Maybe the branch we're tracking didn't
1365 # exist when the repo started, so it's
1366 # not an error if it doesn't, just continue
1367 #
1368 # Wonderfully consistent library, eh?
1369 # 160013 - svn:// and file://
1370 # 175002 - http(s)://
1371 # 175007 - http(s):// (this repo required authorization, too...)
1372 # More codes may be discovered later...
1373 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
1374 return;
1375 }
1376 croak "Error from SVN, ($errno): ", $err->expanded_message,"\n";
1377 }
1378
1379 # svn_log_changed_path_t objects passed to get_log are likely to be
1380 # overwritten even if only the refs are copied to an external variable,
1381 # so we should dup the structures in their entirety. Using an externally
1382 # passed pool (instead of our temporary and quickly cleared pool in
1383 # Git::SVN::Ra) does not help matters at all...
1384 sub dup_changed_paths {
1385 my ($paths) = @_;
1386 return undef unless $paths;
1387 my %ret;
1388 foreach my $p (keys %$paths) {
1389 my $i = $paths->{$p};
1390 my %s = map { $_ => $i->$_ }
1391 qw/copyfrom_path copyfrom_rev action/;
1392 $ret{$p} = \%s;
1393 }
1394 \%ret;
1395 }
1396
1397 # rev_db:
1398 # Tie::File seems to be prone to offset errors if revisions get sparse,
1399 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
1400 # one of my favorite modules is out :< Next up would be one of the DBM
1401 # modules, but I'm not sure which is most portable... So I'll just
1402 # go with something that's plain-text, but still capable of
1403 # being randomly accessed. So here's my ultra-simple fixed-width
1404 # database. All records are 40 characters + "\n", so it's easy to seek
1405 # to a revision: (41 * rev) is the byte offset.
1406 # A record of 40 0s denotes an empty revision.
1407 # And yes, it's still pretty fast (faster than Tie::File).
1408
1409 sub rev_db_set {
1410 my ($self, $rev, $commit) = @_;
1411 length $commit == 40 or croak "arg3 must be a full SHA1 hexsum\n";
1412 open my $fh, '+<', $self->{db_path} or croak $!;
1413 my $offset = $rev * 41;
1414 # assume that append is the common case:
1415 seek $fh, 0, 2 or croak $!;
1416 my $pos = tell $fh;
1417 if ($pos < $offset) {
1418 print $fh (('0' x 40),"\n") x (($offset - $pos) / 41)
1419 or croak $!;
1420 }
1421 seek $fh, $offset, 0 or croak $!;
1422 print $fh $commit,"\n" or croak $!;
1423 close $fh or croak $!;
1424 }
1425
1426 sub rev_db_get {
1427 my ($self, $rev) = @_;
1428 my $ret;
1429 my $offset = $rev * 41;
1430 open my $fh, '<', $self->{db_path} or croak $!;
1431 if (seek $fh, $offset, 0) {
1432 $ret = readline $fh;
1433 if (defined $ret) {
1434 chomp $ret;
1435 $ret = undef if ($ret =~ /^0{40}$/);
1436 }
1437 }
1438 close $fh or croak $!;
1439 $ret;
1440 }
1441
1442 sub find_rev_before {
1443 my ($self, $rev, $eq_ok) = @_;
1444 --$rev unless $eq_ok;
1445 while ($rev > 0) {
1446 if (my $c = $self->rev_db_get($rev)) {
1447 return ($rev, $c);
1448 }
1449 --$rev;
1450 }
1451 return (undef, undef);
1452 }
1453
1454 sub _new {
1455 my ($class, $repo_id, $ref_id, $path) = @_;
1456 unless (defined $repo_id && length $repo_id) {
1457 $repo_id = $Git::SVN::default_repo_id;
1458 }
1459 unless (defined $ref_id && length $ref_id) {
1460 $_[2] = $ref_id = $Git::SVN::default_ref_id;
1461 }
1462 $_[1] = $repo_id = sanitize_remote_name($repo_id);
1463 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
1464 $_[3] = $path = '' unless (defined $path);
1465 mkpath([$dir]);
1466 unless (-f "$dir/.rev_db") {
1467 open my $fh, '>>', "$dir/.rev_db" or croak $!;
1468 close $fh or croak $!;
1469 }
1470 bless { ref_id => $ref_id, dir => $dir, index => "$dir/index",
1471 path => $path,
1472 db_path => "$dir/.rev_db", repo_id => $repo_id }, $class;
1473 }
1474
1475 sub uri_encode {
1476 my ($f) = @_;
1477 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
1478 $f
1479 }
1480
1481 package Git::SVN::Prompt;
1482 use strict;
1483 use warnings;
1484 require SVN::Core;
1485 use vars qw/$_no_auth_cache $_username/;
1486
1487 sub simple {
1488 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
1489 $may_save = undef if $_no_auth_cache;
1490 $default_username = $_username if defined $_username;
1491 if (defined $default_username && length $default_username) {
1492 if (defined $realm && length $realm) {
1493 print STDERR "Authentication realm: $realm\n";
1494 STDERR->flush;
1495 }
1496 $cred->username($default_username);
1497 } else {
1498 username($cred, $realm, $may_save, $pool);
1499 }
1500 $cred->password(_read_password("Password for '" .
1501 $cred->username . "': ", $realm));
1502 $cred->may_save($may_save);
1503 $SVN::_Core::SVN_NO_ERROR;
1504 }
1505
1506 sub ssl_server_trust {
1507 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
1508 $may_save = undef if $_no_auth_cache;
1509 print STDERR "Error validating server certificate for '$realm':\n";
1510 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
1511 print STDERR " - The certificate is not issued by a trusted ",
1512 "authority. Use the\n",
1513 " fingerprint to validate the certificate manually!\n";
1514 }
1515 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
1516 print STDERR " - The certificate hostname does not match.\n";
1517 }
1518 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
1519 print STDERR " - The certificate is not yet valid.\n";
1520 }
1521 if ($failures & $SVN::Auth::SSL::EXPIRED) {
1522 print STDERR " - The certificate has expired.\n";
1523 }
1524 if ($failures & $SVN::Auth::SSL::OTHER) {
1525 print STDERR " - The certificate has an unknown error.\n";
1526 }
1527 printf STDERR
1528 "Certificate information:\n".
1529 " - Hostname: %s\n".
1530 " - Valid: from %s until %s\n".
1531 " - Issuer: %s\n".
1532 " - Fingerprint: %s\n",
1533 map $cert_info->$_, qw(hostname valid_from valid_until
1534 issuer_dname fingerprint);
1535 my $choice;
1536 prompt:
1537 print STDERR $may_save ?
1538 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
1539 "(R)eject or accept (t)emporarily? ";
1540 STDERR->flush;
1541 $choice = lc(substr(<STDIN> || 'R', 0, 1));
1542 if ($choice =~ /^t$/i) {
1543 $cred->may_save(undef);
1544 } elsif ($choice =~ /^r$/i) {
1545 return -1;
1546 } elsif ($may_save && $choice =~ /^p$/i) {
1547 $cred->may_save($may_save);
1548 } else {
1549 goto prompt;
1550 }
1551 $cred->accepted_failures($failures);
1552 $SVN::_Core::SVN_NO_ERROR;
1553 }
1554
1555 sub ssl_client_cert {
1556 my ($cred, $realm, $may_save, $pool) = @_;
1557 $may_save = undef if $_no_auth_cache;
1558 print STDERR "Client certificate filename: ";
1559 STDERR->flush;
1560 chomp(my $filename = <STDIN>);
1561 $cred->cert_file($filename);
1562 $cred->may_save($may_save);
1563 $SVN::_Core::SVN_NO_ERROR;
1564 }
1565
1566 sub ssl_client_cert_pw {
1567 my ($cred, $realm, $may_save, $pool) = @_;
1568 $may_save = undef if $_no_auth_cache;
1569 $cred->password(_read_password("Password: ", $realm));
1570 $cred->may_save($may_save);
1571 $SVN::_Core::SVN_NO_ERROR;
1572 }
1573
1574 sub username {
1575 my ($cred, $realm, $may_save, $pool) = @_;
1576 $may_save = undef if $_no_auth_cache;
1577 if (defined $realm && length $realm) {
1578 print STDERR "Authentication realm: $realm\n";
1579 }
1580 my $username;
1581 if (defined $_username) {
1582 $username = $_username;
1583 } else {
1584 print STDERR "Username: ";
1585 STDERR->flush;
1586 chomp($username = <STDIN>);
1587 }
1588 $cred->username($username);
1589 $cred->may_save($may_save);
1590 $SVN::_Core::SVN_NO_ERROR;
1591 }
1592
1593 sub _read_password {
1594 my ($prompt, $realm) = @_;
1595 print STDERR $prompt;
1596 STDERR->flush;
1597 require Term::ReadKey;
1598 Term::ReadKey::ReadMode('noecho');
1599 my $password = '';
1600 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
1601 last if $key =~ /[\012\015]/; # \n\r
1602 $password .= $key;
1603 }
1604 Term::ReadKey::ReadMode('restore');
1605 print STDERR "\n";
1606 STDERR->flush;
1607 $password;
1608 }
1609
1610 package main;
1611
1612 sub uri_encode {
1613 my ($f) = @_;
1614 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
1615 $f
1616 }
1617
1618 sub uri_decode {
1619 my ($f) = @_;
1620 $f =~ tr/+/ /;
1621 $f =~ s/%([A-F0-9]{2})/chr hex($1)/ge;
1622 $f
1623 }
1624
1625 {
1626 my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
1627 $SVN::Node::dir.$SVN::Node::unknown.
1628 $SVN::Node::none.$SVN::Node::file.
1629 $SVN::Node::dir.$SVN::Node::unknown.
1630 $SVN::Auth::SSL::CNMISMATCH.
1631 $SVN::Auth::SSL::NOTYETVALID.
1632 $SVN::Auth::SSL::EXPIRED.
1633 $SVN::Auth::SSL::UNKNOWNCA.
1634 $SVN::Auth::SSL::OTHER;
1635 }
1636
1637 package SVN::Git::Fetcher;
1638 use vars qw/@ISA/;
1639 use strict;
1640 use warnings;
1641 use Carp qw/croak/;
1642 use IO::File qw//;
1643
1644 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
1645 sub new {
1646 my ($class, $git_svn) = @_;
1647 my $self = SVN::Delta::Editor->new;
1648 bless $self, $class;
1649 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
1650 $self->{empty} = {};
1651 $self->{dir_prop} = {};
1652 $self->{file_prop} = {};
1653 $self->{absent_dir} = {};
1654 $self->{absent_file} = {};
1655 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
1656 require Digest::MD5;
1657 $self;
1658 }
1659
1660 sub set_path_strip {
1661 my ($self, $path) = @_;
1662 $self->{path_strip} = qr/^\Q$path\E\/?/;
1663 }
1664
1665 sub open_root {
1666 { path => '' };
1667 }
1668
1669 sub open_directory {
1670 my ($self, $path, $pb, $rev) = @_;
1671 { path => $path };
1672 }
1673
1674 sub git_path {
1675 my ($self, $path) = @_;
1676 $path =~ s!$self->{path_strip}!! if $self->{path_strip};
1677 $path;
1678 }
1679
1680 sub delete_entry {
1681 my ($self, $path, $rev, $pb) = @_;
1682
1683 my $gpath = $self->git_path($path);
1684 # remove entire directories.
1685 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
1686 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
1687 -r --name-only -z/,
1688 $self->{c}, '--', $gpath);
1689 local $/ = "\0";
1690 while (<$ls>) {
1691 chomp;
1692 $self->{gii}->remove($_);
1693 print "\tD\t$_\n" unless $self->{q};
1694 }
1695 print "\tD\t$gpath/\n" unless $self->{q};
1696 command_close_pipe($ls, $ctx);
1697 $self->{empty}->{$path} = 0
1698 } else {
1699 $self->{gii}->remove($gpath);
1700 print "\tD\t$gpath\n" unless $self->{q};
1701 }
1702 undef;
1703 }
1704
1705 sub open_file {
1706 my ($self, $path, $pb, $rev) = @_;
1707 my $gpath = $self->git_path($path);
1708 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
1709 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
1710 unless (defined $mode && defined $blob) {
1711 die "$path was not found in commit $self->{c} (r$rev)\n";
1712 }
1713 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
1714 pool => SVN::Pool->new, action => 'M' };
1715 }
1716
1717 sub add_file {
1718 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
1719 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
1720 delete $self->{empty}->{$dir};
1721 { path => $path, mode_a => 100644, mode_b => 100644,
1722 pool => SVN::Pool->new, action => 'A' };
1723 }
1724
1725 sub add_directory {
1726 my ($self, $path, $cp_path, $cp_rev) = @_;
1727 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
1728 delete $self->{empty}->{$dir};
1729 $self->{empty}->{$path} = 1;
1730 { path => $path };
1731 }
1732
1733 sub change_dir_prop {
1734 my ($self, $db, $prop, $value) = @_;
1735 $self->{dir_prop}->{$db->{path}} ||= {};
1736 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
1737 undef;
1738 }
1739
1740 sub absent_directory {
1741 my ($self, $path, $pb) = @_;
1742 $self->{absent_dir}->{$pb->{path}} ||= [];
1743 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
1744 undef;
1745 }
1746
1747 sub absent_file {
1748 my ($self, $path, $pb) = @_;
1749 $self->{absent_file}->{$pb->{path}} ||= [];
1750 push @{$self->{absent_file}->{$pb->{path}}}, $path;
1751 undef;
1752 }
1753
1754 sub change_file_prop {
1755 my ($self, $fb, $prop, $value) = @_;
1756 if ($prop eq 'svn:executable') {
1757 if ($fb->{mode_b} != 120000) {
1758 $fb->{mode_b} = defined $value ? 100755 : 100644;
1759 }
1760 } elsif ($prop eq 'svn:special') {
1761 $fb->{mode_b} = defined $value ? 120000 : 100644;
1762 } else {
1763 $self->{file_prop}->{$fb->{path}} ||= {};
1764 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
1765 }
1766 undef;
1767 }
1768
1769 sub apply_textdelta {
1770 my ($self, $fb, $exp) = @_;
1771 my $fh = IO::File->new_tmpfile;
1772 $fh->autoflush(1);
1773 # $fh gets auto-closed() by SVN::TxDelta::apply(),
1774 # (but $base does not,) so dup() it for reading in close_file
1775 open my $dup, '<&', $fh or croak $!;
1776 my $base = IO::File->new_tmpfile;
1777 $base->autoflush(1);
1778 if ($fb->{blob}) {
1779 defined (my $pid = fork) or croak $!;
1780 if (!$pid) {
1781 open STDOUT, '>&', $base or croak $!;
1782 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
1783 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
1784 }
1785 waitpid $pid, 0;
1786 croak $? if $?;
1787
1788 if (defined $exp) {
1789 seek $base, 0, 0 or croak $!;
1790 my $md5 = Digest::MD5->new;
1791 $md5->addfile($base);
1792 my $got = $md5->hexdigest;
1793 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
1794 "expected: $exp\n",
1795 " got: $got\n" if ($got ne $exp);
1796 }
1797 }
1798 seek $base, 0, 0 or croak $!;
1799 $fb->{fh} = $dup;
1800 $fb->{base} = $base;
1801 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
1802 }
1803
1804 sub close_file {
1805 my ($self, $fb, $exp) = @_;
1806 my $hash;
1807 my $path = $self->git_path($fb->{path});
1808 if (my $fh = $fb->{fh}) {
1809 seek($fh, 0, 0) or croak $!;
1810 my $md5 = Digest::MD5->new;
1811 $md5->addfile($fh);
1812 my $got = $md5->hexdigest;
1813 die "Checksum mismatch: $path\n",
1814 "expected: $exp\n got: $got\n" if ($got ne $exp);
1815 seek($fh, 0, 0) or croak $!;
1816 if ($fb->{mode_b} == 120000) {
1817 read($fh, my $buf, 5) == 5 or croak $!;
1818 $buf eq 'link ' or die "$path has mode 120000",
1819 "but is not a link\n";
1820 }
1821 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
1822 if (!$pid) {
1823 open STDIN, '<&', $fh or croak $!;
1824 exec qw/git-hash-object -w --stdin/ or croak $!;
1825 }
1826 chomp($hash = do { local $/; <$out> });
1827 close $out or croak $!;
1828 close $fh or croak $!;
1829 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
1830 close $fb->{base} or croak $!;
1831 } else {
1832 $hash = $fb->{blob} or die "no blob information\n";
1833 }
1834 $fb->{pool}->clear;
1835 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
1836 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $self->{q};
1837 undef;
1838 }
1839
1840 sub abort_edit {
1841 my $self = shift;
1842 $self->{nr} = $self->{gii}->{nr};
1843 delete $self->{gii};
1844 $self->SUPER::abort_edit(@_);
1845 }
1846
1847 sub close_edit {
1848 my $self = shift;
1849 $self->{git_commit_ok} = 1;
1850 $self->{nr} = $self->{gii}->{nr};
1851 delete $self->{gii};
1852 $self->SUPER::close_edit(@_);
1853 }
1854
1855 package SVN::Git::Editor;
1856 use vars qw/@ISA/;
1857 use strict;
1858 use warnings;
1859 use Carp qw/croak/;
1860 use IO::File;
1861
1862 sub new {
1863 my ($class, $opts) = @_;
1864 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
1865 die "$_ required!\n" unless (defined $opts->{$_});
1866 }
1867
1868 my $pool = SVN::Pool->new;
1869 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
1870 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
1871 $opts->{r}, $mods);
1872
1873 # $opts->{ra} functions should not be used after this:
1874 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
1875 $opts->{editor_cb}, $pool);
1876 my $self = SVN::Delta::Editor->new(@ce, $pool);
1877 bless $self, $class;
1878 foreach (qw/svn_path r tree_a tree_b/) {
1879 $self->{$_} = $opts->{$_};
1880 }
1881 $self->{url} = $opts->{ra}->{url};
1882 $self->{mods} = $mods;
1883 $self->{types} = $types;
1884 $self->{pool} = $pool;
1885 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
1886 $self->{rm} = { };
1887 $self->{path_prefix} = length $self->{svn_path} ?
1888 "$self->{svn_path}/" : '';
1889 require Digest::MD5;
1890 return $self;
1891 }
1892
1893 sub generate_diff {
1894 my ($tree_a, $tree_b) = @_;
1895 my @diff_tree = qw(diff-tree -z -r);
1896 if ($::_cp_similarity) {
1897 push @diff_tree, "-C$::_cp_similarity";
1898 } else {
1899 push @diff_tree, '-C';
1900 }
1901 push @diff_tree, '--find-copies-harder' if $::_find_copies_harder;
1902 push @diff_tree, "-l$::_l" if defined $::_l;
1903 push @diff_tree, $tree_a, $tree_b;
1904 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
1905 local $/ = "\0";
1906 my $state = 'meta';
1907 my @mods;
1908 while (<$diff_fh>) {
1909 chomp $_; # this gets rid of the trailing "\0"
1910 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
1911 $::sha1\s($::sha1)\s
1912 ([MTCRAD])\d*$/xo) {
1913 push @mods, { mode_a => $1, mode_b => $2,
1914 sha1_b => $3, chg => $4 };
1915 if ($4 =~ /^(?:C|R)$/) {
1916 $state = 'file_a';
1917 } else {
1918 $state = 'file_b';
1919 }
1920 } elsif ($state eq 'file_a') {
1921 my $x = $mods[$#mods] or croak "Empty array\n";
1922 if ($x->{chg} !~ /^(?:C|R)$/) {
1923 croak "Error parsing $_, $x->{chg}\n";
1924 }
1925 $x->{file_a} = $_;
1926 $state = 'file_b';
1927 } elsif ($state eq 'file_b') {
1928 my $x = $mods[$#mods] or croak "Empty array\n";
1929 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
1930 croak "Error parsing $_, $x->{chg}\n";
1931 }
1932 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
1933 croak "Error parsing $_, $x->{chg}\n";
1934 }
1935 $x->{file_b} = $_;
1936 $state = 'meta';
1937 } else {
1938 croak "Error parsing $_\n";
1939 }
1940 }
1941 command_close_pipe($diff_fh, $ctx);
1942 \@mods;
1943 }
1944
1945 sub check_diff_paths {
1946 my ($ra, $pfx, $rev, $mods) = @_;
1947 my %types;
1948 $pfx .= '/' if length $pfx;
1949
1950 sub type_diff_paths {
1951 my ($ra, $types, $path, $rev) = @_;
1952 my @p = split m#/+#, $path;
1953 my $c = shift @p;
1954 unless (defined $types->{$c}) {
1955 $types->{$c} = $ra->check_path($c, $rev);
1956 }
1957 while (@p) {
1958 $c .= '/' . shift @p;
1959 next if defined $types->{$c};
1960 $types->{$c} = $ra->check_path($c, $rev);
1961 }
1962 }
1963
1964 foreach my $m (@$mods) {
1965 foreach my $f (qw/file_a file_b/) {
1966 next unless defined $m->{$f};
1967 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
1968 if (length $pfx.$dir && ! defined $types{$dir}) {
1969 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
1970 }
1971 }
1972 }
1973 \%types;
1974 }
1975
1976 sub split_path {
1977 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
1978 }
1979
1980 sub repo_path {
1981 my ($self, $path) = @_;
1982 $self->{path_prefix}.(defined $path ? $path : '');
1983 }
1984
1985 sub url_path {
1986 my ($self, $path) = @_;
1987 $self->{url} . '/' . $self->repo_path($path);
1988 }
1989
1990 sub rmdirs {
1991 my ($self) = @_;
1992 my $rm = $self->{rm};
1993 delete $rm->{''}; # we never delete the url we're tracking
1994 return unless %$rm;
1995
1996 foreach (keys %$rm) {
1997 my @d = split m#/#, $_;
1998 my $c = shift @d;
1999 $rm->{$c} = 1;
2000 while (@d) {
2001 $c .= '/' . shift @d;
2002 $rm->{$c} = 1;
2003 }
2004 }
2005 delete $rm->{$self->{svn_path}};
2006 delete $rm->{''}; # we never delete the url we're tracking
2007 return unless %$rm;
2008
2009 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
2010 $self->{tree_b});
2011 local $/ = "\0";
2012 while (<$fh>) {
2013 chomp;
2014 my @dn = split m#/#, $_;
2015 while (pop @dn) {
2016 delete $rm->{join '/', @dn};
2017 }
2018 unless (%$rm) {
2019 close $fh;
2020 return;
2021 }
2022 }
2023 command_close_pipe($fh, $ctx);
2024
2025 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
2026 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
2027 $self->close_directory($bat->{$d}, $p);
2028 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
2029 print "\tD+\t$d/\n" unless $::_q;
2030 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
2031 delete $bat->{$d};
2032 }
2033 }
2034
2035 sub open_or_add_dir {
2036 my ($self, $full_path, $baton) = @_;
2037 my $t = $self->{types}->{$full_path};
2038 if (!defined $t) {
2039 die "$full_path not known in r$self->{r} or we have a bug!\n";
2040 }
2041 if ($t == $SVN::Node::none) {
2042 return $self->add_directory($full_path, $baton,
2043 undef, -1, $self->{pool});
2044 } elsif ($t == $SVN::Node::dir) {
2045 return $self->open_directory($full_path, $baton,
2046 $self->{r}, $self->{pool});
2047 }
2048 print STDERR "$full_path already exists in repository at ",
2049 "r$self->{r} and it is not a directory (",
2050 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
2051 exit 1;
2052 }
2053
2054 sub ensure_path {
2055 my ($self, $path) = @_;
2056 my $bat = $self->{bat};
2057 my $repo_path = $self->repo_path($path);
2058 return $bat->{''} unless (length $repo_path);
2059 my @p = split m#/+#, $repo_path;
2060 my $c = shift @p;
2061 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
2062 while (@p) {
2063 my $c0 = $c;
2064 $c .= '/' . shift @p;
2065 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
2066 }
2067 return $bat->{$c};
2068 }
2069
2070 sub A {
2071 my ($self, $m) = @_;
2072 my ($dir, $file) = split_path($m->{file_b});
2073 my $pbat = $self->ensure_path($dir);
2074 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2075 undef, -1);
2076 print "\tA\t$m->{file_b}\n" unless $::_q;
2077 $self->chg_file($fbat, $m);
2078 $self->close_file($fbat,undef,$self->{pool});
2079 }
2080
2081 sub C {
2082 my ($self, $m) = @_;
2083 my ($dir, $file) = split_path($m->{file_b});
2084 my $pbat = $self->ensure_path($dir);
2085 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2086 $self->url_path($m->{file_a}), $self->{r});
2087 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2088 $self->chg_file($fbat, $m);
2089 $self->close_file($fbat,undef,$self->{pool});
2090 }
2091
2092 sub delete_entry {
2093 my ($self, $path, $pbat) = @_;
2094 my $rpath = $self->repo_path($path);
2095 my ($dir, $file) = split_path($rpath);
2096 $self->{rm}->{$dir} = 1;
2097 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
2098 }
2099
2100 sub R {
2101 my ($self, $m) = @_;
2102 my ($dir, $file) = split_path($m->{file_b});
2103 my $pbat = $self->ensure_path($dir);
2104 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2105 $self->url_path($m->{file_a}), $self->{r});
2106 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2107 $self->chg_file($fbat, $m);
2108 $self->close_file($fbat,undef,$self->{pool});
2109
2110 ($dir, $file) = split_path($m->{file_a});
2111 $pbat = $self->ensure_path($dir);
2112 $self->delete_entry($m->{file_a}, $pbat);
2113 }
2114
2115 sub M {
2116 my ($self, $m) = @_;
2117 my ($dir, $file) = split_path($m->{file_b});
2118 my $pbat = $self->ensure_path($dir);
2119 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
2120 $pbat,$self->{r},$self->{pool});
2121 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
2122 $self->chg_file($fbat, $m);
2123 $self->close_file($fbat,undef,$self->{pool});
2124 }
2125
2126 sub T { shift->M(@_) }
2127
2128 sub change_file_prop {
2129 my ($self, $fbat, $pname, $pval) = @_;
2130 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
2131 }
2132
2133 sub chg_file {
2134 my ($self, $fbat, $m) = @_;
2135 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
2136 $self->change_file_prop($fbat,'svn:executable','*');
2137 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
2138 $self->change_file_prop($fbat,'svn:executable',undef);
2139 }
2140 my $fh = IO::File->new_tmpfile or croak $!;
2141 if ($m->{mode_b} =~ /^120/) {
2142 print $fh 'link ' or croak $!;
2143 $self->change_file_prop($fbat,'svn:special','*');
2144 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
2145 $self->change_file_prop($fbat,'svn:special',undef);
2146 }
2147 defined(my $pid = fork) or croak $!;
2148 if (!$pid) {
2149 open STDOUT, '>&', $fh or croak $!;
2150 exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!;
2151 }
2152 waitpid $pid, 0;
2153 croak $? if $?;
2154 $fh->flush == 0 or croak $!;
2155 seek $fh, 0, 0 or croak $!;
2156
2157 my $md5 = Digest::MD5->new;
2158 $md5->addfile($fh) or croak $!;
2159 seek $fh, 0, 0 or croak $!;
2160
2161 my $exp = $md5->hexdigest;
2162 my $pool = SVN::Pool->new;
2163 my $atd = $self->apply_textdelta($fbat, undef, $pool);
2164 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
2165 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
2166 $pool->clear;
2167
2168 close $fh or croak $!;
2169 }
2170
2171 sub D {
2172 my ($self, $m) = @_;
2173 my ($dir, $file) = split_path($m->{file_b});
2174 my $pbat = $self->ensure_path($dir);
2175 print "\tD\t$m->{file_b}\n" unless $::_q;
2176 $self->delete_entry($m->{file_b}, $pbat);
2177 }
2178
2179 sub close_edit {
2180 my ($self) = @_;
2181 my ($p,$bat) = ($self->{pool}, $self->{bat});
2182 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
2183 $self->close_directory($bat->{$_}, $p);
2184 }
2185 $self->SUPER::close_edit($p);
2186 $p->clear;
2187 }
2188
2189 sub abort_edit {
2190 my ($self) = @_;
2191 $self->SUPER::abort_edit($self->{pool});
2192 }
2193
2194 sub DESTROY {
2195 my $self = shift;
2196 $self->SUPER::DESTROY(@_);
2197 $self->{pool}->clear;
2198 }
2199
2200 # this drives the editor
2201 sub apply_diff {
2202 my ($self) = @_;
2203 my $mods = $self->{mods};
2204 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
2205 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
2206 my $f = $m->{chg};
2207 if (defined $o{$f}) {
2208 $self->$f($m);
2209 } else {
2210 fatal("Invalid change type: $f\n");
2211 }
2212 }
2213 $self->rmdirs if $::_rmdir;
2214 if (@$mods == 0) {
2215 $self->abort_edit;
2216 } else {
2217 $self->close_edit;
2218 }
2219 return scalar @$mods;
2220 }
2221
2222 package Git::SVN::Ra;
2223 use vars qw/@ISA $config_dir/;
2224 use strict;
2225 use warnings;
2226 my ($can_do_switch);
2227 my %RA;
2228
2229 BEGIN {
2230 # enforce temporary pool usage for some simple functions
2231 my $e;
2232 foreach (qw/get_latest_revnum rev_proplist get_file
2233 check_path get_dir get_uuid get_repos_root/) {
2234 $e .= "sub $_ {
2235 my \$self = shift;
2236 my \$pool = SVN::Pool->new;
2237 my \@ret = \$self->SUPER::$_(\@_,\$pool);
2238 \$pool->clear;
2239 wantarray ? \@ret : \$ret[0]; }\n";
2240 }
2241 eval $e;
2242 }
2243
2244 sub new {
2245 my ($class, $url) = @_;
2246 $url =~ s!/+$!!;
2247 return $RA{$url} if $RA{$url};
2248
2249 SVN::_Core::svn_config_ensure($config_dir, undef);
2250 my ($baton, $callbacks) = SVN::Core::auth_open_helper([
2251 SVN::Client::get_simple_provider(),
2252 SVN::Client::get_ssl_server_trust_file_provider(),
2253 SVN::Client::get_simple_prompt_provider(
2254 \&Git::SVN::Prompt::simple, 2),
2255 SVN::Client::get_ssl_client_cert_prompt_provider(
2256 \&Git::SVN::Prompt::ssl_client_cert, 2),
2257 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
2258 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
2259 SVN::Client::get_username_provider(),
2260 SVN::Client::get_ssl_server_trust_prompt_provider(
2261 \&Git::SVN::Prompt::ssl_server_trust),
2262 SVN::Client::get_username_prompt_provider(
2263 \&Git::SVN::Prompt::username, 2),
2264 ]);
2265 my $config = SVN::Core::config_get_config($config_dir);
2266 my $self = SVN::Ra->new(url => $url, auth => $baton,
2267 config => $config,
2268 pool => SVN::Pool->new,
2269 auth_provider_callbacks => $callbacks);
2270 $self->{svn_path} = $url;
2271 $self->{repos_root} = $self->get_repos_root;
2272 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E/*##;
2273 $RA{$url} = bless $self, $class;
2274 }
2275
2276 sub DESTROY {
2277 # do not call the real DESTROY since we store ourselves in %RA
2278 }
2279
2280 sub get_log {
2281 my ($self, @args) = @_;
2282 my $pool = SVN::Pool->new;
2283 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
2284 my $ret = $self->SUPER::get_log(@args, $pool);
2285 $pool->clear;
2286 $ret;
2287 }
2288
2289 sub get_commit_editor {
2290 my ($self, $log, $cb, $pool) = @_;
2291 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
2292 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
2293 }
2294
2295 sub uuid {
2296 my ($self) = @_;
2297 $self->{uuid} ||= $self->get_uuid;
2298 }
2299
2300 sub gs_do_update {
2301 my ($self, $rev_a, $rev_b, $path, $recurse, $editor) = @_;
2302 my $pool = SVN::Pool->new;
2303 $editor->set_path_strip($path);
2304 my $reporter = $self->do_update($rev_b, $path, $recurse,
2305 $editor, $pool);
2306 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2307 my $new = ($rev_a == $rev_b);
2308 $reporter->set_path('', $rev_a, $new, @lock, $pool);
2309 $reporter->finish_report($pool);
2310 $pool->clear;
2311 $editor->{git_commit_ok};
2312 }
2313
2314 sub gs_do_switch {
2315 my ($self, $rev_a, $rev_b, $path, $recurse, $url_b, $editor) = @_;
2316 my $pool = SVN::Pool->new;
2317 $editor->set_path_strip($path);
2318 my $reporter = $self->do_switch($rev_b, $path, $recurse,
2319 $url_b, $editor, $pool);
2320 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2321 $reporter->set_path('', $rev_a, 0, @lock, $pool);
2322 $reporter->finish_report($pool);
2323 $pool->clear;
2324 $editor->{git_commit_ok};
2325 }
2326
2327 sub minimize_url {
2328 my ($self) = @_;
2329 return $self->{url} if ($self->{url} eq $self->{repos_root});
2330 my $url = $self->{repos_root};
2331 my @components = split(m!/!, $self->{svn_path});
2332 my $c = '';
2333 do {
2334 $url .= "/$c" if length $c;
2335 eval { (ref $self)->new($url)->get_latest_revnum };
2336 } while ($@ && ($c = shift @components));
2337 $url;
2338 }
2339
2340 sub can_do_switch {
2341 my $self = shift;
2342 unless (defined $can_do_switch) {
2343 my $pool = SVN::Pool->new;
2344 my $rep = eval {
2345 $self->do_switch(1, '', 0, $self->{url},
2346 SVN::Delta::Editor->new, $pool);
2347 };
2348 if ($@) {
2349 $can_do_switch = 0;
2350 } else {
2351 $rep->abort_report($pool);
2352 $can_do_switch = 1;
2353 }
2354 $pool->clear;
2355 }
2356 $can_do_switch;
2357 }
2358
2359 package Git::SVN::Log;
2360 use strict;
2361 use warnings;
2362 use POSIX qw/strftime/;
2363 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
2364 %rusers $show_commit $incremental/;
2365 my $l_fmt;
2366
2367 sub cmt_showable {
2368 my ($c) = @_;
2369 return 1 if defined $c->{r};
2370 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
2371 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
2372 my @log = command(qw/cat-file commit/, $c->{c});
2373 shift @log while ($log[0] ne "\n");
2374 shift @log;
2375 @{$c->{l}} = grep !/^git-svn-id: /, @log;
2376
2377 (undef, $c->{r}, undef) = ::extract_metadata(
2378 (grep(/^git-svn-id: /, @log))[-1]);
2379 }
2380 return defined $c->{r};
2381 }
2382
2383 sub log_use_color {
2384 return 1 if $color;
2385 my ($dc, $dcvar);
2386 $dcvar = 'color.diff';
2387 $dc = `git-config --get $dcvar`;
2388 if ($dc eq '') {
2389 # nothing at all; fallback to "diff.color"
2390 $dcvar = 'diff.color';
2391 $dc = `git-config --get $dcvar`;
2392 }
2393 chomp($dc);
2394 if ($dc eq 'auto') {
2395 my $pc;
2396 $pc = `git-config --get color.pager`;
2397 if ($pc eq '') {
2398 # does not have it -- fallback to pager.color
2399 $pc = `git-config --bool --get pager.color`;
2400 }
2401 else {
2402 $pc = `git-config --bool --get color.pager`;
2403 if ($?) {
2404 $pc = 'false';
2405 }
2406 }
2407 chomp($pc);
2408 if (-t *STDOUT || (defined $pager && $pc eq 'true')) {
2409 return ($ENV{TERM} && $ENV{TERM} ne 'dumb');
2410 }
2411 return 0;
2412 }
2413 return 0 if $dc eq 'never';
2414 return 1 if $dc eq 'always';
2415 chomp($dc = `git-config --bool --get $dcvar`);
2416 return ($dc eq 'true');
2417 }
2418
2419 sub git_svn_log_cmd {
2420 my ($r_min, $r_max) = @_;
2421 my $gs = Git::SVN->_new;
2422 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
2423 $gs->refname);
2424 push @cmd, '-r' unless $non_recursive;
2425 push @cmd, qw/--raw --name-status/ if $verbose;
2426 push @cmd, '--color' if log_use_color();
2427 return @cmd unless defined $r_max;
2428 if ($r_max == $r_min) {
2429 push @cmd, '--max-count=1';
2430 if (my $c = $gs->rev_db_get($r_max)) {
2431 push @cmd, $c;
2432 }
2433 } else {
2434 my ($c_min, $c_max);
2435 $c_max = $gs->rev_db_get($r_max);
2436 $c_min = $gs->rev_db_get($r_min);
2437 if (defined $c_min && defined $c_max) {
2438 if ($r_max > $r_max) {
2439 push @cmd, "$c_min..$c_max";
2440 } else {
2441 push @cmd, "$c_max..$c_min";
2442 }
2443 } elsif ($r_max > $r_min) {
2444 push @cmd, $c_max;
2445 } else {
2446 push @cmd, $c_min;
2447 }
2448 }
2449 return @cmd;
2450 }
2451
2452 # adapted from pager.c
2453 sub config_pager {
2454 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
2455 if (!defined $pager) {
2456 $pager = 'less';
2457 } elsif (length $pager == 0 || $pager eq 'cat') {
2458 $pager = undef;
2459 }
2460 }
2461
2462 sub run_pager {
2463 return unless -t *STDOUT;
2464 pipe my $rfd, my $wfd or return;
2465 defined(my $pid = fork) or ::fatal "Can't fork: $!\n";
2466 if (!$pid) {
2467 open STDOUT, '>&', $wfd or
2468 ::fatal "Can't redirect to stdout: $!\n";
2469 return;
2470 }
2471 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!\n";
2472 $ENV{LESS} ||= 'FRSX';
2473 exec $pager or ::fatal "Can't run pager: $! ($pager)\n";
2474 }
2475
2476 sub tz_to_s_offset {
2477 my ($tz) = @_;
2478 $tz =~ s/(\d\d)$//;
2479 return ($1 * 60) + ($tz * 3600);
2480 }
2481
2482 sub get_author_info {
2483 my ($dest, $author, $t, $tz) = @_;
2484 $author =~ s/(?:^\s*|\s*$)//g;
2485 $dest->{a_raw} = $author;
2486 my $au;
2487 if ($::_authors) {
2488 $au = $rusers{$author} || undef;
2489 }
2490 if (!$au) {
2491 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
2492 }
2493 $dest->{t} = $t;
2494 $dest->{tz} = $tz;
2495 $dest->{a} = $au;
2496 # Date::Parse isn't in the standard Perl distro :(
2497 if ($tz =~ s/^\+//) {
2498 $t += tz_to_s_offset($tz);
2499 } elsif ($tz =~ s/^\-//) {
2500 $t -= tz_to_s_offset($tz);
2501 }
2502 $dest->{t_utc} = $t;
2503 }
2504
2505 sub process_commit {
2506 my ($c, $r_min, $r_max, $defer) = @_;
2507 if (defined $r_min && defined $r_max) {
2508 if ($r_min == $c->{r} && $r_min == $r_max) {
2509 show_commit($c);
2510 return 0;
2511 }
2512 return 1 if $r_min == $r_max;
2513 if ($r_min < $r_max) {
2514 # we need to reverse the print order
2515 return 0 if (defined $limit && --$limit < 0);
2516 push @$defer, $c;
2517 return 1;
2518 }
2519 if ($r_min != $r_max) {
2520 return 1 if ($r_min < $c->{r});
2521 return 1 if ($r_max > $c->{r});
2522 }
2523 }
2524 return 0 if (defined $limit && --$limit < 0);
2525 show_commit($c);
2526 return 1;
2527 }
2528
2529 sub show_commit {
2530 my $c = shift;
2531 if ($oneline) {
2532 my $x = "\n";
2533 if (my $l = $c->{l}) {
2534 while ($l->[0] =~ /^\s*$/) { shift @$l }
2535 $x = $l->[0];
2536 }
2537 $l_fmt ||= 'A' . length($c->{r});
2538 print 'r',pack($l_fmt, $c->{r}),' | ';
2539 print "$c->{c} | " if $show_commit;
2540 print $x;
2541 } else {
2542 show_commit_normal($c);
2543 }
2544 }
2545
2546 sub show_commit_changed_paths {
2547 my ($c) = @_;
2548 return unless $c->{changed};
2549 print "Changed paths:\n", @{$c->{changed}};
2550 }
2551
2552 sub show_commit_normal {
2553 my ($c) = @_;
2554 print '-' x72, "\nr$c->{r} | ";
2555 print "$c->{c} | " if $show_commit;
2556 print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
2557 localtime($c->{t_utc})), ' | ';
2558 my $nr_line = 0;
2559
2560 if (my $l = $c->{l}) {
2561 while ($l->[$#$l] eq "\n" && $#$l > 0
2562 && $l->[($#$l - 1)] eq "\n") {
2563 pop @$l;
2564 }
2565 $nr_line = scalar @$l;
2566 if (!$nr_line) {
2567 print "1 line\n\n\n";
2568 } else {
2569 if ($nr_line == 1) {
2570 $nr_line = '1 line';
2571 } else {
2572 $nr_line .= ' lines';
2573 }
2574 print $nr_line, "\n";
2575 show_commit_changed_paths($c);
2576 print "\n";
2577 print $_ foreach @$l;
2578 }
2579 } else {
2580 print "1 line\n";
2581 show_commit_changed_paths($c);
2582 print "\n";
2583
2584 }
2585 foreach my $x (qw/raw diff/) {
2586 if ($c->{$x}) {
2587 print "\n";
2588 print $_ foreach @{$c->{$x}}
2589 }
2590 }
2591 }
2592
2593 sub cmd_show_log {
2594 my (@args) = @_;
2595 my ($r_min, $r_max);
2596 my $r_last = -1; # prevent dupes
2597 if (defined $TZ) {
2598 $ENV{TZ} = $TZ;
2599 } else {
2600 delete $ENV{TZ};
2601 }
2602 if (defined $::_revision) {
2603 if ($::_revision =~ /^(\d+):(\d+)$/) {
2604 ($r_min, $r_max) = ($1, $2);
2605 } elsif ($::_revision =~ /^\d+$/) {
2606 $r_min = $r_max = $::_revision;
2607 } else {
2608 ::fatal "-r$::_revision is not supported, use ",
2609 "standard \'git log\' arguments instead\n";
2610 }
2611 }
2612
2613 config_pager();
2614 @args = (git_svn_log_cmd($r_min, $r_max), @args);
2615 my $log = command_output_pipe(@args);
2616 run_pager();
2617 my (@k, $c, $d);
2618 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
2619 while (<$log>) {
2620 if (/^${esc_color}commit ($::sha1_short)/o) {
2621 my $cmt = $1;
2622 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
2623 $r_last = $c->{r};
2624 process_commit($c, $r_min, $r_max, \@k) or
2625 goto out;
2626 }
2627 $d = undef;
2628 $c = { c => $cmt };
2629 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
2630 get_author_info($c, $1, $2, $3);
2631 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
2632 # ignore
2633 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
2634 push @{$c->{raw}}, $_;
2635 } elsif (/^${esc_color}[ACRMDT]\t/) {
2636 # we could add $SVN->{svn_path} here, but that requires
2637 # remote access at the moment (repo_path_split)...
2638 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
2639 push @{$c->{changed}}, $_;
2640 } elsif (/^${esc_color}diff /o) {
2641 $d = 1;
2642 push @{$c->{diff}}, $_;
2643 } elsif ($d) {
2644 push @{$c->{diff}}, $_;
2645 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
2646 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
2647 } elsif (s/^${esc_color} //o) {
2648 push @{$c->{l}}, $_;
2649 }
2650 }
2651 if ($c && defined $c->{r} && $c->{r} != $r_last) {
2652 $r_last = $c->{r};
2653 process_commit($c, $r_min, $r_max, \@k);
2654 }
2655 if (@k) {
2656 my $swap = $r_max;
2657 $r_max = $r_min;
2658 $r_min = $swap;
2659 process_commit($_, $r_min, $r_max) foreach reverse @k;
2660 }
2661 out:
2662 close $log;
2663 print '-' x72,"\n" unless $incremental || $oneline;
2664 }
2665
2666 package Git::SVN::Migration;
2667 # these version numbers do NOT correspond to actual version numbers
2668 # of git nor git-svn. They are just relative.
2669 #
2670 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
2671 #
2672 # v1 layout: .git/$id/info/url, refs/remotes/$id
2673 #
2674 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
2675 #
2676 # v3 layout: .git/svn/$id, refs/remotes/$id
2677 # - info/url may remain for backwards compatibility
2678 # - this is what we migrate up to this layout automatically,
2679 # - this will be used by git svn init on single branches
2680 #
2681 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
2682 # - this is only created for newly multi-init-ed
2683 # repositories. Similar in spirit to the
2684 # --use-separate-remotes option in git-clone (now default)
2685 # - we do not automatically migrate to this (following
2686 # the example set by core git)
2687 use strict;
2688 use warnings;
2689 use Carp qw/croak/;
2690 use File::Path qw/mkpath/;
2691 use File::Basename qw/dirname basename/;
2692 use vars qw/$_minimize/;
2693
2694 sub migrate_from_v0 {
2695 my $git_dir = $ENV{GIT_DIR};
2696 return undef unless -d $git_dir;
2697 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
2698 my $migrated = 0;
2699 while (<$fh>) {
2700 chomp;
2701 my ($id, $orig_ref) = ($_, $_);
2702 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
2703 next unless -f "$git_dir/$id/info/url";
2704 my $new_ref = "refs/remotes/$id";
2705 if (::verify_ref("$new_ref^0")) {
2706 print STDERR "W: $orig_ref is probably an old ",
2707 "branch used by an ancient version of ",
2708 "git-svn.\n",
2709 "However, $new_ref also exists.\n",
2710 "We will not be able ",
2711 "to use this branch until this ",
2712 "ambiguity is resolved.\n";
2713 next;
2714 }
2715 print STDERR "Migrating from v0 layout...\n" if !$migrated;
2716 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
2717 command_noisy('update-ref', $new_ref, $orig_ref);
2718 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
2719 $migrated++;
2720 }
2721 command_close_pipe($fh, $ctx);
2722 print STDERR "Done migrating from v0 layout...\n" if $migrated;
2723 $migrated;
2724 }
2725
2726 sub migrate_from_v1 {
2727 my $git_dir = $ENV{GIT_DIR};
2728 my $migrated = 0;
2729 return $migrated unless -d $git_dir;
2730 my $svn_dir = "$git_dir/svn";
2731
2732 # just in case somebody used 'svn' as their $id at some point...
2733 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
2734
2735 print STDERR "Migrating from a git-svn v1 layout...\n";
2736 mkpath([$svn_dir]);
2737 print STDERR "Data from a previous version of git-svn exists, but\n\t",
2738 "$svn_dir\n\t(required for this version ",
2739 "($::VERSION) of git-svn) does not. exist\n";
2740 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
2741 while (<$fh>) {
2742 my $x = $_;
2743 next unless $x =~ s#^refs/remotes/##;
2744 chomp $x;
2745 next unless -f "$git_dir/$x/info/url";
2746 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
2747 next unless $u;
2748 my $dn = dirname("$git_dir/svn/$x");
2749 mkpath([$dn]) unless -d $dn;
2750 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
2751 mkpath(["$git_dir/svn/svn"]);
2752 print STDERR " - $git_dir/$x/info => ",
2753 "$git_dir/svn/$x/info\n";
2754 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
2755 croak "$!: $x";
2756 # don't worry too much about these, they probably
2757 # don't exist with repos this old (save for index,
2758 # and we can easily regenerate that)
2759 foreach my $f (qw/unhandled.log index .rev_db/) {
2760 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
2761 }
2762 } else {
2763 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
2764 rename "$git_dir/$x", "$git_dir/svn/$x" or
2765 croak "$!: $x";
2766 }
2767 $migrated++;
2768 }
2769 command_close_pipe($fh, $ctx);
2770 print STDERR "Done migrating from a git-svn v1 layout\n";
2771 $migrated;
2772 }
2773
2774 sub read_old_urls {
2775 my ($l_map, $pfx, $path) = @_;
2776 my @dir;
2777 foreach (<$path/*>) {
2778 if (-r "$_/info/url") {
2779 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
2780 my $ref_id = $pfx . basename $_;
2781 my $url = ::file_to_s("$_/info/url");
2782 $l_map->{$ref_id} = $url;
2783 } elsif (-d $_) {
2784 push @dir, $_;
2785 }
2786 }
2787 foreach (@dir) {
2788 my $x = $_;
2789 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
2790 read_old_urls($l_map, $x, $_);
2791 }
2792 }
2793
2794 sub migrate_from_v2 {
2795 my @cfg = command(qw/config -l/);
2796 return if grep /^svn-remote\..+\.url=/, @cfg;
2797 my %l_map;
2798 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
2799 my $migrated = 0;
2800
2801 foreach my $ref_id (sort keys %l_map) {
2802 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
2803 $migrated++;
2804 }
2805 $migrated;
2806 }
2807
2808 sub minimize_connections {
2809 my $r = Git::SVN::read_all_remotes();
2810 my $new_urls = {};
2811 my $root_repos = {};
2812 foreach my $repo_id (keys %$r) {
2813 my $url = $r->{$repo_id}->{url} or next;
2814 my $fetch = $r->{$repo_id}->{fetch} or next;
2815 my $ra = Git::SVN::Ra->new($url);
2816
2817 # skip existing cases where we already connect to the root
2818 if (($ra->{url} eq $ra->{repos_root}) ||
2819 (Git::SVN::sanitize_remote_name($ra->{repos_root}) eq
2820 $repo_id)) {
2821 $root_repos->{$ra->{url}} = $repo_id;
2822 next;
2823 }
2824
2825 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
2826 my $root_path = $ra->{url};
2827 $root_path =~ s#^\Q$ra->{repos_root}\E/*##;
2828 foreach my $path (keys %$fetch) {
2829 my $ref_id = $fetch->{$path};
2830 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
2831
2832 # make sure we can read when connecting to
2833 # a higher level of a repository
2834 my ($last_rev, undef) = $gs->last_rev_commit;
2835 if (!defined $last_rev) {
2836 $last_rev = eval {
2837 $root_ra->get_latest_revnum;
2838 };
2839 next if $@;
2840 }
2841 my $new = $root_path;
2842 $new .= length $path ? "/$path" : '';
2843 eval {
2844 $root_ra->get_log([$new], $last_rev, $last_rev,
2845 0, 0, 1, sub { });
2846 };
2847 next if $@;
2848 $new_urls->{$ra->{repos_root}}->{$new} =
2849 { ref_id => $ref_id,
2850 old_repo_id => $repo_id,
2851 old_path => $path };
2852 }
2853 }
2854
2855 my @emptied;
2856 foreach my $url (keys %$new_urls) {
2857 # see if we can re-use an existing [svn-remote "repo_id"]
2858 # instead of creating a(n ugly) new section:
2859 my $repo_id = $root_repos->{$url} ||
2860 Git::SVN::sanitize_remote_name($url);
2861
2862 my $fetch = $new_urls->{$url};
2863 foreach my $path (keys %$fetch) {
2864 my $x = $fetch->{$path};
2865 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
2866 my $pfx = "svn-remote.$x->{old_repo_id}";
2867
2868 my $old_fetch = quotemeta("$x->{old_path}:".
2869 "refs/remotes/$x->{ref_id}");
2870 command_noisy(qw/config --unset/,
2871 "$pfx.fetch", '^'. $old_fetch . '$');
2872 delete $r->{$x->{old_repo_id}}->
2873 {fetch}->{$x->{old_path}};
2874 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
2875 command_noisy(qw/config --unset/,
2876 "$pfx.url");
2877 push @emptied, $x->{old_repo_id}
2878 }
2879 }
2880 }
2881 if (@emptied) {
2882 my $file = $ENV{GIT_CONFIG} || $ENV{GIT_CONFIG_LOCAL} ||
2883 "$ENV{GIT_DIR}/config";
2884 print STDERR <<EOF;
2885 The following [svn-remote] sections in your config file ($file) are empty
2886 and can be safely removed:
2887 EOF
2888 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
2889 }
2890 }
2891
2892 sub migration_check {
2893 migrate_from_v0();
2894 migrate_from_v1();
2895 migrate_from_v2();
2896 minimize_connections() if $_minimize;
2897 }
2898
2899 package Git::IndexInfo;
2900 use strict;
2901 use warnings;
2902 use Git qw/command_input_pipe command_close_pipe/;
2903
2904 sub new {
2905 my ($class) = @_;
2906 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
2907 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
2908 }
2909
2910 sub remove {
2911 my ($self, $path) = @_;
2912 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
2913 return ++$self->{nr};
2914 }
2915 undef;
2916 }
2917
2918 sub update {
2919 my ($self, $mode, $hash, $path) = @_;
2920 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
2921 return ++$self->{nr};
2922 }
2923 undef;
2924 }
2925
2926 sub DESTROY {
2927 my ($self) = @_;
2928 command_close_pipe($self->{gui}, $self->{ctx});
2929 }
2930
2931 __END__
2932
2933 Data structures:
2934
2935 $log_entry hashref as returned by libsvn_log_entry()
2936 {
2937 log => 'whitespace-formatted log entry
2938 ', # trailing newline is preserved
2939 revision => '8', # integer
2940 date => '2004-02-24T17:01:44.108345Z', # commit date
2941 author => 'committer name'
2942 };
2943
2944
2945 # this is generated by generate_diff();
2946 @mods = array of diff-index line hashes, each element represents one line
2947 of diff-index output
2948
2949 diff-index line ($m hash)
2950 {
2951 mode_a => first column of diff-index output, no leading ':',
2952 mode_b => second column of diff-index output,
2953 sha1_b => sha1sum of the final blob,
2954 chg => change type [MCRADT],
2955 file_a => original file name of a file (iff chg is 'C' or 'R')
2956 file_b => new/current file name of a file (any chg)
2957 }
2958 ;
2959
2960 # retval of read_url_paths{,_all}();
2961 $l_map = {
2962 # repository root url
2963 'https://svn.musicpd.org' => {
2964 # repository path # GIT_SVN_ID
2965 'mpd/trunk' => 'trunk',
2966 'mpd/tags/0.11.5' => 'tags/0.11.5',
2967 },
2968 }
2969
2970 Notes:
2971 I don't trust the each() function on unless I created %hash myself
2972 because the internal iterator may not have started at base.
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