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git-branch: improve abbreviation of sha1s in verbose mode
[alt-git.git] / git-svn.perl
blob41961b59f6d7848efbb4e7b91dcb629bbd7d4abb
1 #!/usr/bin/env perl
2 # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3 # License: GPL v2 or later
4 use warnings;
5 use strict;
6 use vars qw/ $AUTHOR $VERSION
7 $sha1 $sha1_short $_revision
8 $_q $_authors %users/;
9 $AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
10 $VERSION = '@@GIT_VERSION@@';
11
12 my $git_dir_user_set = 1 if defined $ENV{GIT_DIR};
13 $ENV{GIT_DIR} ||= '.git';
14 $Git::SVN::default_repo_id = 'svn';
15 $Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
16 $Git::SVN::Ra::_log_window_size = 100;
17
18 $Git::SVN::Log::TZ = $ENV{TZ};
19 $ENV{TZ} = 'UTC';
20 $| = 1; # unbuffer STDOUT
21
22 sub fatal (@) { print STDERR @_; exit 1 }
23 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
24 require SVN::Ra;
25 require SVN::Delta;
26 if ($SVN::Core::VERSION lt '1.1.0') {
27 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)\n";
28 }
29 push @Git::SVN::Ra::ISA, 'SVN::Ra';
30 push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
31 push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
32 use Carp qw/croak/;
33 use IO::File qw//;
34 use File::Basename qw/dirname basename/;
35 use File::Path qw/mkpath/;
36 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
37 use IPC::Open3;
38 use Git;
39
40 BEGIN {
41 my $s;
42 foreach (qw/command command_oneline command_noisy command_output_pipe
43 command_input_pipe command_close_pipe/) {
44 $s .= "*SVN::Git::Editor::$_ = *SVN::Git::Fetcher::$_ = ".
45 "*Git::SVN::Migration::$_ = ".
46 "*Git::SVN::Log::$_ = *Git::SVN::$_ = *$_ = *Git::$_; ";
47 }
48 eval $s;
49 }
50
51 my ($SVN);
52
53 $sha1 = qr/[a-f\d]{40}/;
54 $sha1_short = qr/[a-f\d]{4,40}/;
55 my ($_stdin, $_help, $_edit,
56 $_message, $_file,
57 $_template, $_shared,
58 $_version, $_fetch_all,
59 $_merge, $_strategy, $_dry_run,
60 $_prefix, $_no_checkout, $_verbose);
61 $Git::SVN::_follow_parent = 1;
62 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
63 'config-dir=s' => \$Git::SVN::Ra::config_dir,
64 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache );
65 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
66 'authors-file|A=s' => \$_authors,
67 'repack:i' => \$Git::SVN::_repack,
68 'noMetadata' => \$Git::SVN::_no_metadata,
69 'useSvmProps' => \$Git::SVN::_use_svm_props,
70 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
71 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
72 'no-checkout' => \$_no_checkout,
73 'quiet|q' => \$_q,
74 'repack-flags|repack-args|repack-opts=s' =>
75 \$Git::SVN::_repack_flags,
76 %remote_opts );
77
78 my ($_trunk, $_tags, $_branches);
79 my %icv;
80 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
81 'trunk|T=s' => \$_trunk, 'tags|t=s' => \$_tags,
82 'branches|b=s' => \$_branches, 'prefix=s' => \$_prefix,
83 'no-metadata' => sub { $icv{noMetadata} = 1 },
84 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
85 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
86 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
87 %remote_opts );
88 my %cmt_opts = ( 'edit|e' => \$_edit,
89 'rmdir' => \$SVN::Git::Editor::_rmdir,
90 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
91 'l=i' => \$SVN::Git::Editor::_rename_limit,
92 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
93 );
94
95 my %cmd = (
96 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
97 { 'revision|r=s' => \$_revision,
98 'fetch-all|all' => \$_fetch_all,
99 %fc_opts } ],
100 clone => [ \&cmd_clone, "Initialize and fetch revisions",
101 { 'revision|r=s' => \$_revision,
102 %fc_opts, %init_opts } ],
103 init => [ \&cmd_init, "Initialize a repo for tracking" .
104 " (requires URL argument)",
105 \%init_opts ],
106 'multi-init' => [ \&cmd_multi_init,
107 "Deprecated alias for ".
108 "'$0 init -T<trunk> -b<branches> -t<tags>'",
109 \%init_opts ],
110 dcommit => [ \&cmd_dcommit,
111 'Commit several diffs to merge with upstream',
112 { 'merge|m|M' => \$_merge,
113 'strategy|s=s' => \$_strategy,
114 'verbose|v' => \$_verbose,
115 'dry-run|n' => \$_dry_run,
116 'fetch-all|all' => \$_fetch_all,
117 %cmt_opts, %fc_opts } ],
118 'set-tree' => [ \&cmd_set_tree,
119 "Set an SVN repository to a git tree-ish",
120 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
121 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
122 { 'revision|r=i' => \$_revision } ],
123 'multi-fetch' => [ \&cmd_multi_fetch,
124 "Deprecated alias for $0 fetch --all",
125 { 'revision|r=s' => \$_revision, %fc_opts } ],
126 'migrate' => [ sub { },
127 # no-op, we automatically run this anyways,
128 'Migrate configuration/metadata/layout from
129 previous versions of git-svn',
130 { 'minimize' => \$Git::SVN::Migration::_minimize,
131 %remote_opts } ],
132 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
133 { 'limit=i' => \$Git::SVN::Log::limit,
134 'revision|r=s' => \$_revision,
135 'verbose|v' => \$Git::SVN::Log::verbose,
136 'incremental' => \$Git::SVN::Log::incremental,
137 'oneline' => \$Git::SVN::Log::oneline,
138 'show-commit' => \$Git::SVN::Log::show_commit,
139 'non-recursive' => \$Git::SVN::Log::non_recursive,
140 'authors-file|A=s' => \$_authors,
141 'color' => \$Git::SVN::Log::color,
142 'pager=s' => \$Git::SVN::Log::pager,
143 } ],
144 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
145 { 'merge|m|M' => \$_merge,
146 'verbose|v' => \$_verbose,
147 'strategy|s=s' => \$_strategy,
148 'fetch-all|all' => \$_fetch_all,
149 %fc_opts } ],
150 'commit-diff' => [ \&cmd_commit_diff,
151 'Commit a diff between two trees',
152 { 'message|m=s' => \$_message,
153 'file|F=s' => \$_file,
154 'revision|r=s' => \$_revision,
155 %cmt_opts } ],
156 );
157
158 my $cmd;
159 for (my $i = 0; $i < @ARGV; $i++) {
160 if (defined $cmd{$ARGV[$i]}) {
161 $cmd = $ARGV[$i];
162 splice @ARGV, $i, 1;
163 last;
164 }
165 };
166
167 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
168
169 read_repo_config(\%opts);
170 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
171 'minimize-connections' => \$Git::SVN::Migration::_minimize,
172 'id|i=s' => \$Git::SVN::default_ref_id,
173 'svn-remote|remote|R=s' => sub {
174 $Git::SVN::no_reuse_existing = 1;
175 $Git::SVN::default_repo_id = $_[1] });
176 exit 1 if (!$rv && $cmd ne 'log');
177
178 usage(0) if $_help;
179 version() if $_version;
180 usage(1) unless defined $cmd;
181 load_authors() if $_authors;
182
183 # make sure we're always running
184 unless ($cmd =~ /(?:clone|init|multi-init)$/) {
185 unless (-d $ENV{GIT_DIR}) {
186 if ($git_dir_user_set) {
187 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
188 "but it is not a directory\n";
189 }
190 my $git_dir = delete $ENV{GIT_DIR};
191 chomp(my $cdup = command_oneline(qw/rev-parse --show-cdup/));
192 unless (length $cdup) {
193 die "Already at toplevel, but $git_dir ",
194 "not found '$cdup'\n";
195 }
196 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
197 unless (-d $git_dir) {
198 die "$git_dir still not found after going to ",
199 "'$cdup'\n";
200 }
201 $ENV{GIT_DIR} = $git_dir;
202 }
203 }
204 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
205 Git::SVN::Migration::migration_check();
206 }
207 Git::SVN::init_vars();
208 eval {
209 Git::SVN::verify_remotes_sanity();
210 $cmd{$cmd}->[0]->(@ARGV);
211 };
212 fatal $@ if $@;
213 post_fetch_checkout();
214 exit 0;
215
216 ####################### primary functions ######################
217 sub usage {
218 my $exit = shift || 0;
219 my $fd = $exit ? \*STDERR : \*STDOUT;
220 print $fd <<"";
221 git-svn - bidirectional operations between a single Subversion tree and git
222 Usage: $0 <command> [options] [arguments]\n
223
224 print $fd "Available commands:\n" unless $cmd;
225
226 foreach (sort keys %cmd) {
227 next if $cmd && $cmd ne $_;
228 next if /^multi-/; # don't show deprecated commands
229 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
230 foreach (keys %{$cmd{$_}->[2]}) {
231 # prints out arguments as they should be passed:
232 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
233 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
234 "--$_" : "-$_" }
235 split /\|/,$_)," $x\n";
236 }
237 }
238 print $fd <<"";
239 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
240 arbitrary identifier if you're tracking multiple SVN branches/repositories in
241 one git repository and want to keep them separate. See git-svn(1) for more
242 information.
243
244 exit $exit;
245 }
246
247 sub version {
248 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
249 exit 0;
250 }
251
252 sub do_git_init_db {
253 unless (-d $ENV{GIT_DIR}) {
254 my @init_db = ('init');
255 push @init_db, "--template=$_template" if defined $_template;
256 if (defined $_shared) {
257 if ($_shared =~ /[a-z]/) {
258 push @init_db, "--shared=$_shared";
259 } else {
260 push @init_db, "--shared";
261 }
262 }
263 command_noisy(@init_db);
264 }
265 my $set;
266 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
267 foreach my $i (keys %icv) {
268 die "'$set' and '$i' cannot both be set\n" if $set;
269 next unless defined $icv{$i};
270 command_noisy('config', "$pfx.$i", $icv{$i});
271 $set = $i;
272 }
273 }
274
275 sub init_subdir {
276 my $repo_path = shift or return;
277 mkpath([$repo_path]) unless -d $repo_path;
278 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
279 $ENV{GIT_DIR} = '.git';
280 }
281
282 sub cmd_clone {
283 my ($url, $path) = @_;
284 if (!defined $path &&
285 (defined $_trunk || defined $_branches || defined $_tags) &&
286 $url !~ m#^[a-z\+]+://#) {
287 $path = $url;
288 }
289 $path = basename($url) if !defined $path || !length $path;
290 cmd_init($url, $path);
291 Git::SVN::fetch_all($Git::SVN::default_repo_id);
292 }
293
294 sub cmd_init {
295 if (defined $_trunk || defined $_branches || defined $_tags) {
296 return cmd_multi_init(@_);
297 }
298 my $url = shift or die "SVN repository location required ",
299 "as a command-line argument\n";
300 init_subdir(@_);
301 do_git_init_db();
302
303 Git::SVN->init($url);
304 }
305
306 sub cmd_fetch {
307 if (grep /^\d+=./, @_) {
308 die "'<rev>=<commit>' fetch arguments are ",
309 "no longer supported.\n";
310 }
311 my ($remote) = @_;
312 if (@_ > 1) {
313 die "Usage: $0 fetch [--all] [svn-remote]\n";
314 }
315 $remote ||= $Git::SVN::default_repo_id;
316 if ($_fetch_all) {
317 cmd_multi_fetch();
318 } else {
319 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
320 }
321 }
322
323 sub cmd_set_tree {
324 my (@commits) = @_;
325 if ($_stdin || !@commits) {
326 print "Reading from stdin...\n";
327 @commits = ();
328 while (<STDIN>) {
329 if (/\b($sha1_short)\b/o) {
330 unshift @commits, $1;
331 }
332 }
333 }
334 my @revs;
335 foreach my $c (@commits) {
336 my @tmp = command('rev-parse',$c);
337 if (scalar @tmp == 1) {
338 push @revs, $tmp[0];
339 } elsif (scalar @tmp > 1) {
340 push @revs, reverse(command('rev-list',@tmp));
341 } else {
342 fatal "Failed to rev-parse $c\n";
343 }
344 }
345 my $gs = Git::SVN->new;
346 my ($r_last, $cmt_last) = $gs->last_rev_commit;
347 $gs->fetch;
348 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
349 fatal "There are new revisions that were fetched ",
350 "and need to be merged (or acknowledged) ",
351 "before committing.\nlast rev: $r_last\n",
352 " current: $gs->{last_rev}\n";
353 }
354 $gs->set_tree($_) foreach @revs;
355 print "Done committing ",scalar @revs," revisions to SVN\n";
356 }
357
358 sub cmd_dcommit {
359 my $head = shift;
360 $head ||= 'HEAD';
361 my @refs;
362 my ($url, $rev, $uuid) = working_head_info($head, \@refs);
363 my $c = $refs[-1];
364 unless (defined $url && defined $rev && defined $uuid) {
365 die "Unable to determine upstream SVN information from ",
366 "$head history\n";
367 }
368 my $gs = Git::SVN->find_by_url($url);
369 my $last_rev;
370 foreach my $d (@refs) {
371 if (!verify_ref("$d~1")) {
372 fatal "Commit $d\n",
373 "has no parent commit, and therefore ",
374 "nothing to diff against.\n",
375 "You should be working from a repository ",
376 "originally created by git-svn\n";
377 }
378 unless (defined $last_rev) {
379 (undef, $last_rev, undef) = cmt_metadata("$d~1");
380 unless (defined $last_rev) {
381 fatal "Unable to extract revision information ",
382 "from commit $d~1\n";
383 }
384 }
385 if ($_dry_run) {
386 print "diff-tree $d~1 $d\n";
387 } else {
388 my %ed_opts = ( r => $last_rev,
389 log => get_commit_entry($d)->{log},
390 ra => Git::SVN::Ra->new($url),
391 tree_a => "$d~1",
392 tree_b => $d,
393 editor_cb => sub {
394 print "Committed r$_[0]\n";
395 $last_rev = $_[0]; },
396 svn_path => '');
397 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
398 print "No changes\n$d~1 == $d\n";
399 }
400 }
401 }
402 return if $_dry_run;
403 unless ($gs) {
404 warn "Could not determine fetch information for $url\n",
405 "Will not attempt to fetch and rebase commits.\n",
406 "This probably means you have useSvmProps and should\n",
407 "now resync your SVN::Mirror repository.\n";
408 return;
409 }
410 $_fetch_all ? $gs->fetch_all : $gs->fetch;
411 # we always want to rebase against the current HEAD, not any
412 # head that was passed to us
413 my @diff = command('diff-tree', 'HEAD', $gs->refname, '--');
414 my @finish;
415 if (@diff) {
416 @finish = rebase_cmd();
417 print STDERR "W: HEAD and ", $gs->refname, " differ, ",
418 "using @finish:\n", "@diff";
419 } else {
420 print "No changes between current HEAD and ",
421 $gs->refname, "\nResetting to the latest ",
422 $gs->refname, "\n";
423 @finish = qw/reset --mixed/;
424 }
425 command_noisy(@finish, $gs->refname);
426 }
427
428 sub cmd_rebase {
429 command_noisy(qw/update-index --refresh/);
430 my $url = (working_head_info('HEAD'))[0];
431 if (!defined $url) {
432 die "Unable to determine upstream SVN information from ",
433 "working tree history\n";
434 }
435
436 my $gs = Git::SVN->find_by_url($url);
437 if (command(qw/diff-index HEAD --/)) {
438 print STDERR "Cannot rebase with uncommited changes:\n";
439 command_noisy('status');
440 exit 1;
441 }
442 $_fetch_all ? $gs->fetch_all : $gs->fetch;
443 command_noisy(rebase_cmd(), $gs->refname);
444 }
445
446 sub cmd_show_ignore {
447 my $url = (::working_head_info('HEAD'))[0];
448 my $gs = Git::SVN->find_by_url($url) || Git::SVN->new;
449 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
450 $gs->traverse_ignore(\*STDOUT, '', $r);
451 }
452
453 sub cmd_multi_init {
454 my $url = shift;
455 unless (defined $_trunk || defined $_branches || defined $_tags) {
456 usage(1);
457 }
458 $_prefix = '' unless defined $_prefix;
459 if (defined $url) {
460 $url =~ s#/+$##;
461 init_subdir(@_);
462 }
463 do_git_init_db();
464 if (defined $_trunk) {
465 my $trunk_ref = $_prefix . 'trunk';
466 # try both old-style and new-style lookups:
467 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
468 unless ($gs_trunk) {
469 my ($trunk_url, $trunk_path) =
470 complete_svn_url($url, $_trunk);
471 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
472 undef, $trunk_ref);
473 }
474 }
475 return unless defined $_branches || defined $_tags;
476 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
477 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
478 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
479 }
480
481 sub cmd_multi_fetch {
482 my $remotes = Git::SVN::read_all_remotes();
483 foreach my $repo_id (sort keys %$remotes) {
484 if ($remotes->{$repo_id}->{url}) {
485 Git::SVN::fetch_all($repo_id, $remotes);
486 }
487 }
488 }
489
490 # this command is special because it requires no metadata
491 sub cmd_commit_diff {
492 my ($ta, $tb, $url) = @_;
493 my $usage = "Usage: $0 commit-diff -r<revision> ".
494 "<tree-ish> <tree-ish> [<URL>]\n";
495 fatal($usage) if (!defined $ta || !defined $tb);
496 my $svn_path;
497 if (!defined $url) {
498 my $gs = eval { Git::SVN->new };
499 if (!$gs) {
500 fatal("Needed URL or usable git-svn --id in ",
501 "the command-line\n", $usage);
502 }
503 $url = $gs->{url};
504 $svn_path = $gs->{path};
505 }
506 unless (defined $_revision) {
507 fatal("-r|--revision is a required argument\n", $usage);
508 }
509 if (defined $_message && defined $_file) {
510 fatal("Both --message/-m and --file/-F specified ",
511 "for the commit message.\n",
512 "I have no idea what you mean\n");
513 }
514 if (defined $_file) {
515 $_message = file_to_s($_file);
516 } else {
517 $_message ||= get_commit_entry($tb)->{log};
518 }
519 my $ra ||= Git::SVN::Ra->new($url);
520 $svn_path ||= $ra->{svn_path};
521 my $r = $_revision;
522 if ($r eq 'HEAD') {
523 $r = $ra->get_latest_revnum;
524 } elsif ($r !~ /^\d+$/) {
525 die "revision argument: $r not understood by git-svn\n";
526 }
527 my %ed_opts = ( r => $r,
528 log => $_message,
529 ra => $ra,
530 tree_a => $ta,
531 tree_b => $tb,
532 editor_cb => sub { print "Committed r$_[0]\n" },
533 svn_path => $svn_path );
534 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
535 print "No changes\n$ta == $tb\n";
536 }
537 }
538
539 ########################### utility functions #########################
540
541 sub rebase_cmd {
542 my @cmd = qw/rebase/;
543 push @cmd, '-v' if $_verbose;
544 push @cmd, qw/--merge/ if $_merge;
545 push @cmd, "--strategy=$_strategy" if $_strategy;
546 @cmd;
547 }
548
549 sub post_fetch_checkout {
550 return if $_no_checkout;
551 my $gs = $Git::SVN::_head or return;
552 return if verify_ref('refs/heads/master^0');
553
554 my $valid_head = verify_ref('HEAD^0');
555 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
556 return if ($valid_head || !verify_ref('HEAD^0'));
557
558 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
559 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
560 return if -f $index;
561
562 chomp(my $bare = `git config --bool --get core.bare`);
563 return if $bare eq 'true';
564 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
565 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
566 print STDERR "Checked out HEAD:\n ",
567 $gs->full_url, " r", $gs->last_rev, "\n";
568 }
569
570 sub complete_svn_url {
571 my ($url, $path) = @_;
572 $path =~ s#/+$##;
573 if ($path !~ m#^[a-z\+]+://#) {
574 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
575 fatal("E: '$path' is not a complete URL ",
576 "and a separate URL is not specified\n");
577 }
578 return ($url, $path);
579 }
580 return ($path, '');
581 }
582
583 sub complete_url_ls_init {
584 my ($ra, $repo_path, $switch, $pfx) = @_;
585 unless ($repo_path) {
586 print STDERR "W: $switch not specified\n";
587 return;
588 }
589 $repo_path =~ s#/+$##;
590 if ($repo_path =~ m#^[a-z\+]+://#) {
591 $ra = Git::SVN::Ra->new($repo_path);
592 $repo_path = '';
593 } else {
594 $repo_path =~ s#^/+##;
595 unless ($ra) {
596 fatal("E: '$repo_path' is not a complete URL ",
597 "and a separate URL is not specified\n");
598 }
599 }
600 my $url = $ra->{url};
601 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
602 my $k = "svn-remote.$gs->{repo_id}.url";
603 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
604 if ($orig_url && ($orig_url ne $gs->{url})) {
605 die "$k already set: $orig_url\n",
606 "wanted to set to: $gs->{url}\n";
607 }
608 command_oneline('config', $k, $gs->{url}) unless $orig_url;
609 my $remote_path = "$ra->{svn_path}/$repo_path/*";
610 $remote_path =~ s#/+#/#g;
611 $remote_path =~ s#^/##g;
612 my ($n) = ($switch =~ /^--(\w+)/);
613 if (length $pfx && $pfx !~ m#/$#) {
614 die "--prefix='$pfx' must have a trailing slash '/'\n";
615 }
616 command_noisy('config', "svn-remote.$gs->{repo_id}.$n",
617 "$remote_path:refs/remotes/$pfx*");
618 }
619
620 sub verify_ref {
621 my ($ref) = @_;
622 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
623 { STDERR => 0 }); };
624 }
625
626 sub get_tree_from_treeish {
627 my ($treeish) = @_;
628 # $treeish can be a symbolic ref, too:
629 my $type = command_oneline(qw/cat-file -t/, $treeish);
630 my $expected;
631 while ($type eq 'tag') {
632 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
633 }
634 if ($type eq 'commit') {
635 $expected = (grep /^tree /, command(qw/cat-file commit/,
636 $treeish))[0];
637 ($expected) = ($expected =~ /^tree ($sha1)$/o);
638 die "Unable to get tree from $treeish\n" unless $expected;
639 } elsif ($type eq 'tree') {
640 $expected = $treeish;
641 } else {
642 die "$treeish is a $type, expected tree, tag or commit\n";
643 }
644 return $expected;
645 }
646
647 sub get_commit_entry {
648 my ($treeish) = shift;
649 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
650 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
651 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
652 open my $log_fh, '>', $commit_editmsg or croak $!;
653
654 my $type = command_oneline(qw/cat-file -t/, $treeish);
655 if ($type eq 'commit' || $type eq 'tag') {
656 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
657 $type, $treeish);
658 my $in_msg = 0;
659 while (<$msg_fh>) {
660 if (!$in_msg) {
661 $in_msg = 1 if (/^\s*$/);
662 } elsif (/^git-svn-id: /) {
663 # skip this for now, we regenerate the
664 # correct one on re-fetch anyways
665 # TODO: set *:merge properties or like...
666 } else {
667 print $log_fh $_ or croak $!;
668 }
669 }
670 command_close_pipe($msg_fh, $ctx);
671 }
672 close $log_fh or croak $!;
673
674 if ($_edit || ($type eq 'tree')) {
675 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
676 # TODO: strip out spaces, comments, like git-commit.sh
677 system($editor, $commit_editmsg);
678 }
679 rename $commit_editmsg, $commit_msg or croak $!;
680 open $log_fh, '<', $commit_msg or croak $!;
681 { local $/; chomp($log_entry{log} = <$log_fh>); }
682 close $log_fh or croak $!;
683 unlink $commit_msg;
684 \%log_entry;
685 }
686
687 sub s_to_file {
688 my ($str, $file, $mode) = @_;
689 open my $fd,'>',$file or croak $!;
690 print $fd $str,"\n" or croak $!;
691 close $fd or croak $!;
692 chmod ($mode &~ umask, $file) if (defined $mode);
693 }
694
695 sub file_to_s {
696 my $file = shift;
697 open my $fd,'<',$file or croak "$!: file: $file\n";
698 local $/;
699 my $ret = <$fd>;
700 close $fd or croak $!;
701 $ret =~ s/\s*$//s;
702 return $ret;
703 }
704
705 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
706 sub load_authors {
707 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
708 my $log = $cmd eq 'log';
709 while (<$authors>) {
710 chomp;
711 next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
712 my ($user, $name, $email) = ($1, $2, $3);
713 if ($log) {
714 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
715 } else {
716 $users{$user} = [$name, $email];
717 }
718 }
719 close $authors or croak $!;
720 }
721
722 # convert GetOpt::Long specs for use by git-config
723 sub read_repo_config {
724 return unless -d $ENV{GIT_DIR};
725 my $opts = shift;
726 my @config_only;
727 foreach my $o (keys %$opts) {
728 # if we have mixedCase and a long option-only, then
729 # it's a config-only variable that we don't need for
730 # the command-line.
731 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
732 my $v = $opts->{$o};
733 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
734 $key =~ s/-//g;
735 my $arg = 'git-config';
736 $arg .= ' --int' if ($o =~ /[:=]i$/);
737 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
738 if (ref $v eq 'ARRAY') {
739 chomp(my @tmp = `$arg --get-all svn.$key`);
740 @$v = @tmp if @tmp;
741 } else {
742 chomp(my $tmp = `$arg --get svn.$key`);
743 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
744 $$v = $tmp;
745 }
746 }
747 }
748 delete @$opts{@config_only} if @config_only;
749 }
750
751 sub extract_metadata {
752 my $id = shift or return (undef, undef, undef);
753 my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
754 \s([a-f\d\-]+)$/x);
755 if (!defined $rev || !$uuid || !$url) {
756 # some of the original repositories I made had
757 # identifiers like this:
758 ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
759 }
760 return ($url, $rev, $uuid);
761 }
762
763 sub cmt_metadata {
764 return extract_metadata((grep(/^git-svn-id: /,
765 command(qw/cat-file commit/, shift)))[-1]);
766 }
767
768 sub working_head_info {
769 my ($head, $refs) = @_;
770 my ($url, $rev, $uuid);
771 my ($fh, $ctx) = command_output_pipe('rev-list', $head);
772 while (<$fh>) {
773 chomp;
774 ($url, $rev, $uuid) = cmt_metadata($_);
775 last if (defined $url && defined $rev && defined $uuid);
776 unshift @$refs, $_ if $refs;
777 }
778 close $fh; # break the pipe
779 ($url, $rev, $uuid);
780 }
781
782 package Git::SVN;
783 use strict;
784 use warnings;
785 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
786 $_repack $_repack_flags $_use_svm_props $_head
787 $_use_svnsync_props $no_reuse_existing/;
788 use Carp qw/croak/;
789 use File::Path qw/mkpath/;
790 use File::Copy qw/copy/;
791 use IPC::Open3;
792
793 my $_repack_nr;
794 # properties that we do not log:
795 my %SKIP_PROP;
796 BEGIN {
797 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
798 svn:special svn:executable
799 svn:entry:committed-rev
800 svn:entry:last-author
801 svn:entry:uuid
802 svn:entry:committed-date/;
803
804 # some options are read globally, but can be overridden locally
805 # per [svn-remote "..."] section. Command-line options will *NOT*
806 # override options set in an [svn-remote "..."] section
807 my $e;
808 foreach (qw/follow_parent no_metadata use_svm_props
809 use_svnsync_props/) {
810 my $key = $_;
811 $key =~ tr/_//d;
812 $e .= "sub $_ {
813 my (\$self) = \@_;
814 return \$self->{-$_} if exists \$self->{-$_};
815 my \$k = \"svn-remote.\$self->{repo_id}\.$key\";
816 eval { command_oneline(qw/config --get/, \$k) };
817 if (\$@) {
818 \$self->{-$_} = \$Git::SVN::_$_;
819 } else {
820 my \$v = command_oneline(qw/config --bool/,\$k);
821 \$self->{-$_} = \$v eq 'false' ? 0 : 1;
822 }
823 return \$self->{-$_} }\n";
824 }
825 $e .= "1;\n";
826 eval $e or die $@;
827 }
828
829 my %LOCKFILES;
830 END { unlink keys %LOCKFILES if %LOCKFILES }
831
832 sub resolve_local_globs {
833 my ($url, $fetch, $glob_spec) = @_;
834 return unless defined $glob_spec;
835 my $ref = $glob_spec->{ref};
836 my $path = $glob_spec->{path};
837 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
838 next unless m#^refs/remotes/$ref->{regex}$#;
839 my $p = $1;
840 my $pathname = $path->full_path($p);
841 my $refname = $ref->full_path($p);
842 if (my $existing = $fetch->{$pathname}) {
843 if ($existing ne $refname) {
844 die "Refspec conflict:\n",
845 "existing: refs/remotes/$existing\n",
846 " globbed: refs/remotes/$refname\n";
847 }
848 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
849 $u =~ s!^\Q$url\E(/|$)!! or die
850 "refs/remotes/$refname: '$url' not found in '$u'\n";
851 if ($pathname ne $u) {
852 warn "W: Refspec glob conflict ",
853 "(ref: refs/remotes/$refname):\n",
854 "expected path: $pathname\n",
855 " real path: $u\n",
856 "Continuing ahead with $u\n";
857 next;
858 }
859 } else {
860 $fetch->{$pathname} = $refname;
861 }
862 }
863 }
864
865 sub parse_revision_argument {
866 my ($base, $head) = @_;
867 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
868 return ($base, $head);
869 }
870 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
871 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
872 return ($head, $head) if ($::_revision eq 'HEAD');
873 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
874 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
875 die "revision argument: $::_revision not understood by git-svn\n";
876 }
877
878 sub fetch_all {
879 my ($repo_id, $remotes) = @_;
880 if (ref $repo_id) {
881 my $gs = $repo_id;
882 $repo_id = undef;
883 $repo_id = $gs->{repo_id};
884 }
885 $remotes ||= read_all_remotes();
886 my $remote = $remotes->{$repo_id} or
887 die "[svn-remote \"$repo_id\"] unknown\n";
888 my $fetch = $remote->{fetch};
889 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
890 my (@gs, @globs);
891 my $ra = Git::SVN::Ra->new($url);
892 my $uuid = $ra->get_uuid;
893 my $head = $ra->get_latest_revnum;
894 my $base = defined $fetch ? $head : 0;
895
896 # read the max revs for wildcard expansion (branches/*, tags/*)
897 foreach my $t (qw/branches tags/) {
898 defined $remote->{$t} or next;
899 push @globs, $remote->{$t};
900 my $max_rev = eval { tmp_config(qw/--int --get/,
901 "svn-remote.$repo_id.${t}-maxRev") };
902 if (defined $max_rev && ($max_rev < $base)) {
903 $base = $max_rev;
904 } elsif (!defined $max_rev) {
905 $base = 0;
906 }
907 }
908
909 if ($fetch) {
910 foreach my $p (sort keys %$fetch) {
911 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
912 my $lr = $gs->rev_db_max;
913 if (defined $lr) {
914 $base = $lr if ($lr < $base);
915 }
916 push @gs, $gs;
917 }
918 }
919
920 ($base, $head) = parse_revision_argument($base, $head);
921 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
922 }
923
924 sub read_all_remotes {
925 my $r = {};
926 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
927 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
928 $r->{$1}->{fetch}->{$2} = $3;
929 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
930 $r->{$1}->{url} = $2;
931 } elsif (m!^(.+)\.(branches|tags)=
932 (.*):refs/remotes/(.+)\s*$/!x) {
933 my ($p, $g) = ($3, $4);
934 my $rs = $r->{$1}->{$2} = {
935 t => $2,
936 remote => $1,
937 path => Git::SVN::GlobSpec->new($p),
938 ref => Git::SVN::GlobSpec->new($g) };
939 if (length($rs->{ref}->{right}) != 0) {
940 die "The '*' glob character must be the last ",
941 "character of '$g'\n";
942 }
943 }
944 }
945 $r;
946 }
947
948 sub init_vars {
949 if (defined $_repack) {
950 $_repack = 1000 if ($_repack <= 0);
951 $_repack_nr = $_repack;
952 $_repack_flags ||= '-d';
953 }
954 }
955
956 sub verify_remotes_sanity {
957 return unless -d $ENV{GIT_DIR};
958 my %seen;
959 foreach (command(qw/config -l/)) {
960 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
961 if ($seen{$1}) {
962 die "Remote ref refs/remote/$1 is tracked by",
963 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
964 "Please resolve this ambiguity in ",
965 "your git configuration file before ",
966 "continuing\n";
967 }
968 $seen{$1} = $_;
969 }
970 }
971 }
972
973 # we allow more chars than remotes2config.sh...
974 sub sanitize_remote_name {
975 my ($name) = @_;
976 $name =~ tr{A-Za-z0-9:,/+-}{.}c;
977 $name;
978 }
979
980 sub find_existing_remote {
981 my ($url, $remotes) = @_;
982 return undef if $no_reuse_existing;
983 my $existing;
984 foreach my $repo_id (keys %$remotes) {
985 my $u = $remotes->{$repo_id}->{url} or next;
986 next if $u ne $url;
987 $existing = $repo_id;
988 last;
989 }
990 $existing;
991 }
992
993 sub init_remote_config {
994 my ($self, $url, $no_write) = @_;
995 $url =~ s!/+$!!; # strip trailing slash
996 my $r = read_all_remotes();
997 my $existing = find_existing_remote($url, $r);
998 if ($existing) {
999 unless ($no_write) {
1000 print STDERR "Using existing ",
1001 "[svn-remote \"$existing\"]\n";
1002 }
1003 $self->{repo_id} = $existing;
1004 } else {
1005 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1006 $existing = find_existing_remote($min_url, $r);
1007 if ($existing) {
1008 unless ($no_write) {
1009 print STDERR "Using existing ",
1010 "[svn-remote \"$existing\"]\n";
1011 }
1012 $self->{repo_id} = $existing;
1013 }
1014 if ($min_url ne $url) {
1015 unless ($no_write) {
1016 print STDERR "Using higher level of URL: ",
1017 "$url => $min_url\n";
1018 }
1019 my $old_path = $self->{path};
1020 $self->{path} = $url;
1021 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1022 if (length $old_path) {
1023 $self->{path} .= "/$old_path";
1024 }
1025 $url = $min_url;
1026 }
1027 }
1028 my $orig_url;
1029 if (!$existing) {
1030 # verify that we aren't overwriting anything:
1031 $orig_url = eval {
1032 command_oneline('config', '--get',
1033 "svn-remote.$self->{repo_id}.url")
1034 };
1035 if ($orig_url && ($orig_url ne $url)) {
1036 die "svn-remote.$self->{repo_id}.url already set: ",
1037 "$orig_url\nwanted to set to: $url\n";
1038 }
1039 }
1040 my ($xrepo_id, $xpath) = find_ref($self->refname);
1041 if (defined $xpath) {
1042 die "svn-remote.$xrepo_id.fetch already set to track ",
1043 "$xpath:refs/remotes/", $self->refname, "\n";
1044 }
1045 unless ($no_write) {
1046 command_noisy('config',
1047 "svn-remote.$self->{repo_id}.url", $url);
1048 command_noisy('config', '--add',
1049 "svn-remote.$self->{repo_id}.fetch",
1050 "$self->{path}:".$self->refname);
1051 }
1052 $self->{url} = $url;
1053 }
1054
1055 sub find_by_url { # repos_root and, path are optional
1056 my ($class, $full_url, $repos_root, $path) = @_;
1057 return undef unless defined $full_url;
1058 my $remotes = read_all_remotes();
1059 if (defined $full_url && defined $repos_root && !defined $path) {
1060 $path = $full_url;
1061 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1062 }
1063 foreach my $repo_id (keys %$remotes) {
1064 my $u = $remotes->{$repo_id}->{url} or next;
1065 next if defined $repos_root && $repos_root ne $u;
1066
1067 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1068 foreach (qw/branches tags/) {
1069 resolve_local_globs($u, $fetch,
1070 $remotes->{$repo_id}->{$_});
1071 }
1072 my $p = $path;
1073 unless (defined $p) {
1074 $p = $full_url;
1075 $p =~ s#^\Q$u\E(?:/|$)## or next;
1076 }
1077 foreach my $f (keys %$fetch) {
1078 next if $f ne $p;
1079 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1080 }
1081 }
1082 undef;
1083 }
1084
1085 sub init {
1086 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1087 my $self = _new($class, $repo_id, $ref_id, $path);
1088 if (defined $url) {
1089 $self->init_remote_config($url, $no_write);
1090 }
1091 $self;
1092 }
1093
1094 sub find_ref {
1095 my ($ref_id) = @_;
1096 foreach (command(qw/config -l/)) {
1097 next unless m!^svn-remote\.(.+)\.fetch=
1098 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1099 my ($repo_id, $path, $ref) = ($1, $2, $3);
1100 if ($ref eq $ref_id) {
1101 $path = '' if ($path =~ m#^\./?#);
1102 return ($repo_id, $path);
1103 }
1104 }
1105 (undef, undef, undef);
1106 }
1107
1108 sub new {
1109 my ($class, $ref_id, $repo_id, $path) = @_;
1110 if (defined $ref_id && !defined $repo_id && !defined $path) {
1111 ($repo_id, $path) = find_ref($ref_id);
1112 if (!defined $repo_id) {
1113 die "Could not find a \"svn-remote.*.fetch\" key ",
1114 "in the repository configuration matching: ",
1115 "refs/remotes/$ref_id\n";
1116 }
1117 }
1118 my $self = _new($class, $repo_id, $ref_id, $path);
1119 if (!defined $self->{path} || !length $self->{path}) {
1120 my $fetch = command_oneline('config', '--get',
1121 "svn-remote.$repo_id.fetch",
1122 ":refs/remotes/$ref_id\$") or
1123 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1124 "\":refs/remotes/$ref_id\$\" in config\n";
1125 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1126 }
1127 $self->{url} = command_oneline('config', '--get',
1128 "svn-remote.$repo_id.url") or
1129 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1130 $self->rebuild;
1131 $self;
1132 }
1133
1134 sub refname { "refs/remotes/$_[0]->{ref_id}" }
1135
1136 sub svm_uuid {
1137 my ($self) = @_;
1138 return $self->{svm}->{uuid} if $self->svm;
1139 $self->ra;
1140 unless ($self->{svm}) {
1141 die "SVM UUID not cached, and reading remotely failed\n";
1142 }
1143 $self->{svm}->{uuid};
1144 }
1145
1146 sub svm {
1147 my ($self) = @_;
1148 return $self->{svm} if $self->{svm};
1149 my $svm;
1150 # see if we have it in our config, first:
1151 eval {
1152 my $section = "svn-remote.$self->{repo_id}";
1153 $svm = {
1154 source => tmp_config('--get', "$section.svm-source"),
1155 uuid => tmp_config('--get', "$section.svm-uuid"),
1156 replace => tmp_config('--get', "$section.svm-replace"),
1157 }
1158 };
1159 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1160 $self->{svm} = $svm;
1161 }
1162 $self->{svm};
1163 }
1164
1165 sub _set_svm_vars {
1166 my ($self, $ra) = @_;
1167 return $ra if $self->svm;
1168
1169 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1170 "(svm:source, svm:uuid) ",
1171 "from the following URLs:\n" );
1172 sub read_svm_props {
1173 my ($self, $ra, $path, $r) = @_;
1174 my $props = ($ra->get_dir($path, $r))[2];
1175 my $src = $props->{'svm:source'};
1176 my $uuid = $props->{'svm:uuid'};
1177 return undef if (!$src || !$uuid);
1178
1179 chomp($src, $uuid);
1180
1181 $uuid =~ m{^[0-9a-f\-]{30,}$}
1182 or die "doesn't look right - svm:uuid is '$uuid'\n";
1183
1184 # the '!' is used to mark the repos_root!/relative/path
1185 $src =~ s{/?!/?}{/};
1186 $src =~ s{/+$}{}; # no trailing slashes please
1187 # username is of no interest
1188 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1189
1190 my $replace = $ra->{url};
1191 $replace .= "/$path" if length $path;
1192
1193 my $section = "svn-remote.$self->{repo_id}";
1194 tmp_config("$section.svm-source", $src);
1195 tmp_config("$section.svm-replace", $replace);
1196 tmp_config("$section.svm-uuid", $uuid);
1197 $self->{svm} = {
1198 source => $src,
1199 uuid => $uuid,
1200 replace => $replace
1201 };
1202 }
1203
1204 my $r = $ra->get_latest_revnum;
1205 my $path = $self->{path};
1206 my %tried;
1207 while (length $path) {
1208 unless ($tried{"$self->{url}/$path"}) {
1209 return $ra if $self->read_svm_props($ra, $path, $r);
1210 $tried{"$self->{url}/$path"} = 1;
1211 }
1212 $path =~ s#/?[^/]+$##;
1213 }
1214 die "Path: '$path' should be ''\n" if $path ne '';
1215 return $ra if $self->read_svm_props($ra, $path, $r);
1216 $tried{"$self->{url}/$path"} = 1;
1217
1218 if ($ra->{repos_root} eq $self->{url}) {
1219 die @err, (map { " $_\n" } keys %tried), "\n";
1220 }
1221
1222 # nope, make sure we're connected to the repository root:
1223 my $ok;
1224 my @tried_b;
1225 $path = $ra->{svn_path};
1226 $ra = Git::SVN::Ra->new($ra->{repos_root});
1227 while (length $path) {
1228 unless ($tried{"$ra->{url}/$path"}) {
1229 $ok = $self->read_svm_props($ra, $path, $r);
1230 last if $ok;
1231 $tried{"$ra->{url}/$path"} = 1;
1232 }
1233 $path =~ s#/?[^/]+$##;
1234 }
1235 die "Path: '$path' should be ''\n" if $path ne '';
1236 $ok ||= $self->read_svm_props($ra, $path, $r);
1237 $tried{"$ra->{url}/$path"} = 1;
1238 if (!$ok) {
1239 die @err, (map { " $_\n" } keys %tried), "\n";
1240 }
1241 Git::SVN::Ra->new($self->{url});
1242 }
1243
1244 sub svnsync {
1245 my ($self) = @_;
1246 return $self->{svnsync} if $self->{svnsync};
1247
1248 if ($self->no_metadata) {
1249 die "Can't have both 'noMetadata' and ",
1250 "'useSvnsyncProps' options set!\n";
1251 }
1252 if ($self->rewrite_root) {
1253 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1254 "options set!\n";
1255 }
1256
1257 my $svnsync;
1258 # see if we have it in our config, first:
1259 eval {
1260 my $section = "svn-remote.$self->{repo_id}";
1261 $svnsync = {
1262 url => tmp_config('--get', "$section.svnsync-url"),
1263 uuid => tmp_config('--get', "$section.svnsync-uuid"),
1264 }
1265 };
1266 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1267 return $self->{svnsync} = $svnsync;
1268 }
1269
1270 my $err = "useSvnsyncProps set, but failed to read " .
1271 "svnsync property: svn:sync-from-";
1272 my $rp = $self->ra->rev_proplist(0);
1273
1274 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1275 $url =~ m{^[a-z\+]+://} or
1276 die "doesn't look right - svn:sync-from-url is '$url'\n";
1277
1278 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1279 $uuid =~ m{^[0-9a-f\-]{30,}$} or
1280 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1281
1282 my $section = "svn-remote.$self->{repo_id}";
1283 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1284 tmp_config('--add', "$section.svnsync-url", $url);
1285 return $self->{svnsync} = { url => $url, uuid => $uuid };
1286 }
1287
1288 # this allows us to memoize our SVN::Ra UUID locally and avoid a
1289 # remote lookup (useful for 'git svn log').
1290 sub ra_uuid {
1291 my ($self) = @_;
1292 unless ($self->{ra_uuid}) {
1293 my $key = "svn-remote.$self->{repo_id}.uuid";
1294 my $uuid = eval { tmp_config('--get', $key) };
1295 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1296 $self->{ra_uuid} = $uuid;
1297 } else {
1298 die "ra_uuid called without URL\n" unless $self->{url};
1299 $self->{ra_uuid} = $self->ra->get_uuid;
1300 tmp_config('--add', $key, $self->{ra_uuid});
1301 }
1302 }
1303 $self->{ra_uuid};
1304 }
1305
1306 sub ra {
1307 my ($self) = shift;
1308 my $ra = Git::SVN::Ra->new($self->{url});
1309 if ($self->use_svm_props && !$self->{svm}) {
1310 if ($self->no_metadata) {
1311 die "Can't have both 'noMetadata' and ",
1312 "'useSvmProps' options set!\n";
1313 } elsif ($self->use_svnsync_props) {
1314 die "Can't have both 'useSvnsyncProps' and ",
1315 "'useSvmProps' options set!\n";
1316 }
1317 $ra = $self->_set_svm_vars($ra);
1318 $self->{-want_revprops} = 1;
1319 }
1320 $ra;
1321 }
1322
1323 sub rel_path {
1324 my ($self) = @_;
1325 my $repos_root = $self->ra->{repos_root};
1326 return $self->{path} if ($self->{url} eq $repos_root);
1327 die "BUG: rel_path failed! repos_root: $repos_root, Ra URL: ",
1328 $self->ra->{url}, " path: $self->{path}, URL: $self->{url}\n";
1329 }
1330
1331 sub traverse_ignore {
1332 my ($self, $fh, $path, $r) = @_;
1333 $path =~ s#^/+##g;
1334 my $ra = $self->ra;
1335 my ($dirent, undef, $props) = $ra->get_dir($path, $r);
1336 my $p = $path;
1337 $p =~ s#^\Q$ra->{svn_path}\E/##;
1338 print $fh length $p ? "\n# $p\n" : "\n# /\n";
1339 if (my $s = $props->{'svn:ignore'}) {
1340 $s =~ s/[\r\n]+/\n/g;
1341 chomp $s;
1342 if (length $p == 0) {
1343 $s =~ s#\n#\n/$p#g;
1344 print $fh "/$s\n";
1345 } else {
1346 $s =~ s#\n#\n/$p/#g;
1347 print $fh "/$p/$s\n";
1348 }
1349 }
1350 foreach (sort keys %$dirent) {
1351 next if $dirent->{$_}->kind != $SVN::Node::dir;
1352 $self->traverse_ignore($fh, "$path/$_", $r);
1353 }
1354 }
1355
1356 sub last_rev { ($_[0]->last_rev_commit)[0] }
1357 sub last_commit { ($_[0]->last_rev_commit)[1] }
1358
1359 # returns the newest SVN revision number and newest commit SHA1
1360 sub last_rev_commit {
1361 my ($self) = @_;
1362 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1363 return ($self->{last_rev}, $self->{last_commit});
1364 }
1365 my $c = ::verify_ref($self->refname.'^0');
1366 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1367 my $rev = (::cmt_metadata($c))[1];
1368 if (defined $rev) {
1369 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1370 return ($rev, $c);
1371 }
1372 }
1373 my $db_path = $self->db_path;
1374 unless (-e $db_path) {
1375 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
1376 return (undef, undef);
1377 }
1378 my $offset = -41; # from tail
1379 my $rl;
1380 open my $fh, '<', $db_path or croak "$db_path not readable: $!\n";
1381 sysseek($fh, $offset, 2); # don't care for errors
1382 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1383 chomp $rl;
1384 while (('0' x40) eq $rl && sysseek($fh, 0, 1) != 0) {
1385 $offset -= 41;
1386 sysseek($fh, $offset, 2); # don't care for errors
1387 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1388 chomp $rl;
1389 }
1390 if ($c && $c ne $rl) {
1391 die "$db_path and ", $self->refname,
1392 " inconsistent!:\n$c != $rl\n";
1393 }
1394 my $rev = sysseek($fh, 0, 1) or croak $!;
1395 $rev = ($rev - 41) / 41;
1396 close $fh or croak $!;
1397 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1398 return ($rev, $c);
1399 }
1400
1401 sub get_fetch_range {
1402 my ($self, $min, $max) = @_;
1403 $max ||= $self->ra->get_latest_revnum;
1404 $min ||= $self->rev_db_max;
1405 (++$min, $max);
1406 }
1407
1408 sub tmp_config {
1409 my (@args) = @_;
1410 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
1411 my $config = "$ENV{GIT_DIR}/svn/.metadata";
1412 if (-e $old_def_config && ! -e $config) {
1413 rename $old_def_config, $config or
1414 die "Failed rename $old_def_config => $config: $!\n";
1415 }
1416 my $old_config = $ENV{GIT_CONFIG};
1417 $ENV{GIT_CONFIG} = $config;
1418 $@ = undef;
1419 my @ret = eval {
1420 unless (-f $config) {
1421 mkfile($config);
1422 open my $fh, '>', $config or
1423 die "Can't open $config: $!\n";
1424 print $fh "; This file is used internally by ",
1425 "git-svn\n" or die
1426 "Couldn't write to $config: $!\n";
1427 print $fh "; You should not have to edit it\n" or
1428 die "Couldn't write to $config: $!\n";
1429 close $fh or die "Couldn't close $config: $!\n";
1430 }
1431 command('config', @args);
1432 };
1433 my $err = $@;
1434 if (defined $old_config) {
1435 $ENV{GIT_CONFIG} = $old_config;
1436 } else {
1437 delete $ENV{GIT_CONFIG};
1438 }
1439 die $err if $err;
1440 wantarray ? @ret : $ret[0];
1441 }
1442
1443 sub tmp_index_do {
1444 my ($self, $sub) = @_;
1445 my $old_index = $ENV{GIT_INDEX_FILE};
1446 $ENV{GIT_INDEX_FILE} = $self->{index};
1447 $@ = undef;
1448 my @ret = eval {
1449 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
1450 mkpath([$dir]) unless -d $dir;
1451 &$sub;
1452 };
1453 my $err = $@;
1454 if (defined $old_index) {
1455 $ENV{GIT_INDEX_FILE} = $old_index;
1456 } else {
1457 delete $ENV{GIT_INDEX_FILE};
1458 }
1459 die $err if $err;
1460 wantarray ? @ret : $ret[0];
1461 }
1462
1463 sub assert_index_clean {
1464 my ($self, $treeish) = @_;
1465
1466 $self->tmp_index_do(sub {
1467 command_noisy('read-tree', $treeish) unless -e $self->{index};
1468 my $x = command_oneline('write-tree');
1469 my ($y) = (command(qw/cat-file commit/, $treeish) =~
1470 /^tree ($::sha1)/mo);
1471 return if $y eq $x;
1472
1473 warn "Index mismatch: $y != $x\nrereading $treeish\n";
1474 unlink $self->{index} or die "unlink $self->{index}: $!\n";
1475 command_noisy('read-tree', $treeish);
1476 $x = command_oneline('write-tree');
1477 if ($y ne $x) {
1478 ::fatal "trees ($treeish) $y != $x\n",
1479 "Something is seriously wrong...\n";
1480 }
1481 });
1482 }
1483
1484 sub get_commit_parents {
1485 my ($self, $log_entry) = @_;
1486 my (%seen, @ret, @tmp);
1487 # legacy support for 'set-tree'; this is only used by set_tree_cb:
1488 if (my $ip = $self->{inject_parents}) {
1489 if (my $commit = delete $ip->{$log_entry->{revision}}) {
1490 push @tmp, $commit;
1491 }
1492 }
1493 if (my $cur = ::verify_ref($self->refname.'^0')) {
1494 push @tmp, $cur;
1495 }
1496 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
1497 while (my $p = shift @tmp) {
1498 next if $seen{$p};
1499 $seen{$p} = 1;
1500 push @ret, $p;
1501 # MAXPARENT is defined to 16 in commit-tree.c:
1502 last if @ret >= 16;
1503 }
1504 if (@tmp) {
1505 die "r$log_entry->{revision}: No room for parents:\n\t",
1506 join("\n\t", @tmp), "\n";
1507 }
1508 @ret;
1509 }
1510
1511 sub rewrite_root {
1512 my ($self) = @_;
1513 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
1514 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
1515 my $rwr = eval { command_oneline(qw/config --get/, $k) };
1516 if ($rwr) {
1517 $rwr =~ s#/+$##;
1518 if ($rwr !~ m#^[a-z\+]+://#) {
1519 die "$rwr is not a valid URL (key: $k)\n";
1520 }
1521 }
1522 $self->{-rewrite_root} = $rwr;
1523 }
1524
1525 sub metadata_url {
1526 my ($self) = @_;
1527 ($self->rewrite_root || $self->{url}) .
1528 (length $self->{path} ? '/' . $self->{path} : '');
1529 }
1530
1531 sub full_url {
1532 my ($self) = @_;
1533 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
1534 }
1535
1536 sub do_git_commit {
1537 my ($self, $log_entry) = @_;
1538 my $lr = $self->last_rev;
1539 if (defined $lr && $lr >= $log_entry->{revision}) {
1540 die "Last fetched revision of ", $self->refname,
1541 " was r$lr, but we are about to fetch: ",
1542 "r$log_entry->{revision}!\n";
1543 }
1544 if (my $c = $self->rev_db_get($log_entry->{revision})) {
1545 croak "$log_entry->{revision} = $c already exists! ",
1546 "Why are we refetching it?\n";
1547 }
1548 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $log_entry->{name};
1549 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} =
1550 $log_entry->{email};
1551 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
1552
1553 my $tree = $log_entry->{tree};
1554 if (!defined $tree) {
1555 $tree = $self->tmp_index_do(sub {
1556 command_oneline('write-tree') });
1557 }
1558 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
1559
1560 my @exec = ('git-commit-tree', $tree);
1561 foreach ($self->get_commit_parents($log_entry)) {
1562 push @exec, '-p', $_;
1563 }
1564 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1565 or croak $!;
1566 print $msg_fh $log_entry->{log} or croak $!;
1567 unless ($self->no_metadata) {
1568 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
1569 or croak $!;
1570 }
1571 $msg_fh->flush == 0 or croak $!;
1572 close $msg_fh or croak $!;
1573 chomp(my $commit = do { local $/; <$out_fh> });
1574 close $out_fh or croak $!;
1575 waitpid $pid, 0;
1576 croak $? if $?;
1577 if ($commit !~ /^$::sha1$/o) {
1578 die "Failed to commit, invalid sha1: $commit\n";
1579 }
1580
1581 $self->rev_db_set($log_entry->{revision}, $commit, 1);
1582
1583 $self->{last_rev} = $log_entry->{revision};
1584 $self->{last_commit} = $commit;
1585 print "r$log_entry->{revision}";
1586 if (defined $log_entry->{svm_revision}) {
1587 print " (\@$log_entry->{svm_revision})";
1588 $self->rev_db_set($log_entry->{svm_revision}, $commit,
1589 0, $self->svm_uuid);
1590 }
1591 print " = $commit ($self->{ref_id})\n";
1592 if (defined $_repack && (--$_repack_nr == 0)) {
1593 $_repack_nr = $_repack;
1594 # repack doesn't use any arguments with spaces in them, does it?
1595 print "Running git repack $_repack_flags ...\n";
1596 command_noisy('repack', split(/\s+/, $_repack_flags));
1597 print "Done repacking\n";
1598 }
1599 return $commit;
1600 }
1601
1602 sub match_paths {
1603 my ($self, $paths, $r) = @_;
1604 return 1 if $self->{path} eq '';
1605 if (my $path = $paths->{"/$self->{path}"}) {
1606 return ($path->{action} eq 'D') ? 0 : 1;
1607 }
1608 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
1609 if (grep /$self->{path_regex}/, keys %$paths) {
1610 return 1;
1611 }
1612 my $c = '';
1613 foreach (split m#/#, $self->{path}) {
1614 $c .= "/$_";
1615 next unless ($paths->{$c} &&
1616 ($paths->{$c}->{action} =~ /^[AR]$/));
1617 if ($self->ra->check_path($self->{path}, $r) ==
1618 $SVN::Node::dir) {
1619 return 1;
1620 }
1621 }
1622 return 0;
1623 }
1624
1625 sub find_parent_branch {
1626 my ($self, $paths, $rev) = @_;
1627 return undef unless $self->follow_parent;
1628 unless (defined $paths) {
1629 my $err_handler = $SVN::Error::handler;
1630 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
1631 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
1632 $paths =
1633 Git::SVN::Ra::dup_changed_paths($_[0]) });
1634 $SVN::Error::handler = $err_handler;
1635 }
1636 return undef unless defined $paths;
1637
1638 # look for a parent from another branch:
1639 my @b_path_components = split m#/#, $self->rel_path;
1640 my @a_path_components;
1641 my $i;
1642 while (@b_path_components) {
1643 $i = $paths->{'/'.join('/', @b_path_components)};
1644 last if $i && defined $i->{copyfrom_path};
1645 unshift(@a_path_components, pop(@b_path_components));
1646 }
1647 return undef unless defined $i && defined $i->{copyfrom_path};
1648 my $branch_from = $i->{copyfrom_path};
1649 if (@a_path_components) {
1650 print STDERR "branch_from: $branch_from => ";
1651 $branch_from .= '/'.join('/', @a_path_components);
1652 print STDERR $branch_from, "\n";
1653 }
1654 my $r = $i->{copyfrom_rev};
1655 my $repos_root = $self->ra->{repos_root};
1656 my $url = $self->ra->{url};
1657 my $new_url = $repos_root . $branch_from;
1658 print STDERR "Found possible branch point: ",
1659 "$new_url => ", $self->full_url, ", $r\n";
1660 $branch_from =~ s#^/##;
1661 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
1662 unless ($gs) {
1663 my $ref_id = $self->{ref_id};
1664 $ref_id =~ s/\@\d+$//;
1665 $ref_id .= "\@$r";
1666 # just grow a tail if we're not unique enough :x
1667 $ref_id .= '-' while find_ref($ref_id);
1668 print STDERR "Initializing parent: $ref_id\n";
1669 $gs = Git::SVN->init($new_url, '', $ref_id, $ref_id, 1);
1670 }
1671 my ($r0, $parent) = $gs->find_rev_before($r, 1);
1672 if (!defined $r0 || !defined $parent) {
1673 $gs->fetch(0, $r);
1674 ($r0, $parent) = $gs->last_rev_commit;
1675 }
1676 if (defined $r0 && defined $parent) {
1677 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
1678 my $ed;
1679 if ($self->ra->can_do_switch) {
1680 $self->assert_index_clean($parent);
1681 print STDERR "Following parent with do_switch\n";
1682 # do_switch works with svn/trunk >= r22312, but that
1683 # is not included with SVN 1.4.3 (the latest version
1684 # at the moment), so we can't rely on it
1685 $self->{last_commit} = $parent;
1686 $ed = SVN::Git::Fetcher->new($self);
1687 $gs->ra->gs_do_switch($r0, $rev, $gs,
1688 $self->full_url, $ed)
1689 or die "SVN connection failed somewhere...\n";
1690 } else {
1691 print STDERR "Following parent with do_update\n";
1692 $ed = SVN::Git::Fetcher->new($self);
1693 $self->ra->gs_do_update($rev, $rev, $self, $ed)
1694 or die "SVN connection failed somewhere...\n";
1695 }
1696 print STDERR "Successfully followed parent\n";
1697 return $self->make_log_entry($rev, [$parent], $ed);
1698 }
1699 return undef;
1700 }
1701
1702 sub do_fetch {
1703 my ($self, $paths, $rev) = @_;
1704 my $ed;
1705 my ($last_rev, @parents);
1706 if (my $lc = $self->last_commit) {
1707 # we can have a branch that was deleted, then re-added
1708 # under the same name but copied from another path, in
1709 # which case we'll have multiple parents (we don't
1710 # want to break the original ref, nor lose copypath info):
1711 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1712 push @{$log_entry->{parents}}, $lc;
1713 return $log_entry;
1714 }
1715 $ed = SVN::Git::Fetcher->new($self);
1716 $last_rev = $self->{last_rev};
1717 $ed->{c} = $lc;
1718 @parents = ($lc);
1719 } else {
1720 $last_rev = $rev;
1721 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1722 return $log_entry;
1723 }
1724 $ed = SVN::Git::Fetcher->new($self);
1725 }
1726 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
1727 die "SVN connection failed somewhere...\n";
1728 }
1729 $self->make_log_entry($rev, \@parents, $ed);
1730 }
1731
1732 sub get_untracked {
1733 my ($self, $ed) = @_;
1734 my @out;
1735 my $h = $ed->{empty};
1736 foreach (sort keys %$h) {
1737 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
1738 push @out, " $act: " . uri_encode($_);
1739 warn "W: $act: $_\n";
1740 }
1741 foreach my $t (qw/dir_prop file_prop/) {
1742 $h = $ed->{$t} or next;
1743 foreach my $path (sort keys %$h) {
1744 my $ppath = $path eq '' ? '.' : $path;
1745 foreach my $prop (sort keys %{$h->{$path}}) {
1746 next if $SKIP_PROP{$prop};
1747 my $v = $h->{$path}->{$prop};
1748 my $t_ppath_prop = "$t: " .
1749 uri_encode($ppath) . ' ' .
1750 uri_encode($prop);
1751 if (defined $v) {
1752 push @out, " +$t_ppath_prop " .
1753 uri_encode($v);
1754 } else {
1755 push @out, " -$t_ppath_prop";
1756 }
1757 }
1758 }
1759 }
1760 foreach my $t (qw/absent_file absent_directory/) {
1761 $h = $ed->{$t} or next;
1762 foreach my $parent (sort keys %$h) {
1763 foreach my $path (sort @{$h->{$parent}}) {
1764 push @out, " $t: " .
1765 uri_encode("$parent/$path");
1766 warn "W: $t: $parent/$path ",
1767 "Insufficient permissions?\n";
1768 }
1769 }
1770 }
1771 \@out;
1772 }
1773
1774 sub parse_svn_date {
1775 my $date = shift || return '+0000 1970-01-01 00:00:00';
1776 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
1777 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
1778 croak "Unable to parse date: $date\n";
1779 "+0000 $Y-$m-$d $H:$M:$S";
1780 }
1781
1782 sub check_author {
1783 my ($author) = @_;
1784 if (!defined $author || length $author == 0) {
1785 $author = '(no author)';
1786 }
1787 if (defined $::_authors && ! defined $::users{$author}) {
1788 die "Author: $author not defined in $::_authors file\n";
1789 }
1790 $author;
1791 }
1792
1793 sub make_log_entry {
1794 my ($self, $rev, $parents, $ed) = @_;
1795 my $untracked = $self->get_untracked($ed);
1796
1797 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
1798 print $un "r$rev\n" or croak $!;
1799 print $un $_, "\n" foreach @$untracked;
1800 my %log_entry = ( parents => $parents || [], revision => $rev,
1801 log => '');
1802
1803 my $headrev;
1804 my $logged = delete $self->{logged_rev_props};
1805 if (!$logged || $self->{-want_revprops}) {
1806 my $rp = $self->ra->rev_proplist($rev);
1807 foreach (sort keys %$rp) {
1808 my $v = $rp->{$_};
1809 if (/^svn:(author|date|log)$/) {
1810 $log_entry{$1} = $v;
1811 } elsif ($_ eq 'svm:headrev') {
1812 $headrev = $v;
1813 } else {
1814 print $un " rev_prop: ", uri_encode($_), ' ',
1815 uri_encode($v), "\n";
1816 }
1817 }
1818 } else {
1819 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
1820 }
1821 close $un or croak $!;
1822
1823 $log_entry{date} = parse_svn_date($log_entry{date});
1824 $log_entry{log} .= "\n";
1825 my $author = $log_entry{author} = check_author($log_entry{author});
1826 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
1827 : ($author, undef);
1828 if (defined $headrev && $self->use_svm_props) {
1829 if ($self->rewrite_root) {
1830 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
1831 "options set!\n";
1832 }
1833 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
1834 # we don't want "SVM: initializing mirror for junk" ...
1835 return undef if $r == 0;
1836 my $svm = $self->svm;
1837 if ($uuid ne $svm->{uuid}) {
1838 die "UUID mismatch on SVM path:\n",
1839 "expected: $svm->{uuid}\n",
1840 " got: $uuid\n";
1841 }
1842 my $full_url = $self->full_url;
1843 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
1844 die "Failed to replace '$svm->{replace}' with ",
1845 "'$svm->{source}' in $full_url\n";
1846 # throw away username for storing in records
1847 remove_username($full_url);
1848 $log_entry{metadata} = "$full_url\@$r $uuid";
1849 $log_entry{svm_revision} = $r;
1850 $email ||= "$author\@$uuid"
1851 } elsif ($self->use_svnsync_props) {
1852 my $full_url = $self->svnsync->{url};
1853 $full_url .= "/$self->{path}" if length $self->{path};
1854 my $uuid = $self->svnsync->{uuid};
1855 $log_entry{metadata} = "$full_url\@$rev $uuid";
1856 $email ||= "$author\@$uuid"
1857 } else {
1858 $log_entry{metadata} = $self->metadata_url. "\@$rev " .
1859 $self->ra->get_uuid;
1860 $email ||= "$author\@" . $self->ra->get_uuid;
1861 }
1862 $log_entry{name} = $name;
1863 $log_entry{email} = $email;
1864 \%log_entry;
1865 }
1866
1867 sub fetch {
1868 my ($self, $min_rev, $max_rev, @parents) = @_;
1869 my ($last_rev, $last_commit) = $self->last_rev_commit;
1870 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
1871 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
1872 }
1873
1874 sub set_tree_cb {
1875 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
1876 $self->{inject_parents} = { $rev => $tree };
1877 $self->fetch(undef, undef);
1878 }
1879
1880 sub set_tree {
1881 my ($self, $tree) = (shift, shift);
1882 my $log_entry = ::get_commit_entry($tree);
1883 unless ($self->{last_rev}) {
1884 fatal("Must have an existing revision to commit\n");
1885 }
1886 my %ed_opts = ( r => $self->{last_rev},
1887 log => $log_entry->{log},
1888 ra => $self->ra,
1889 tree_a => $self->{last_commit},
1890 tree_b => $tree,
1891 editor_cb => sub {
1892 $self->set_tree_cb($log_entry, $tree, @_) },
1893 svn_path => $self->{path} );
1894 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
1895 print "No changes\nr$self->{last_rev} = $tree\n";
1896 }
1897 }
1898
1899 sub rebuild {
1900 my ($self) = @_;
1901 my $db_path = $self->db_path;
1902 return if (-e $db_path && ! -z $db_path);
1903 return unless ::verify_ref($self->refname.'^0');
1904 if (-f $self->{db_root}) {
1905 rename $self->{db_root}, $db_path or die
1906 "rename $self->{db_root} => $db_path failed: $!\n";
1907 my ($dir, $base) = ($db_path =~ m#^(.*?)/?([^/]+)$#);
1908 symlink $base, $self->{db_root} or die
1909 "symlink $base => $self->{db_root} failed: $!\n";
1910 return;
1911 }
1912 print "Rebuilding $db_path ...\n";
1913 my ($rev_list, $ctx) = command_output_pipe("rev-list", $self->refname);
1914 my $latest;
1915 my $full_url = $self->full_url;
1916 remove_username($full_url);
1917 my $svn_uuid;
1918 while (<$rev_list>) {
1919 chomp;
1920 my $c = $_;
1921 die "Non-SHA1: $c\n" unless $c =~ /^$::sha1$/o;
1922 my ($url, $rev, $uuid) = ::cmt_metadata($c);
1923 remove_username($url);
1924
1925 # ignore merges (from set-tree)
1926 next if (!defined $rev || !$uuid);
1927
1928 # if we merged or otherwise started elsewhere, this is
1929 # how we break out of it
1930 if ((defined $svn_uuid && ($uuid ne $svn_uuid)) ||
1931 ($full_url && $url && ($url ne $full_url))) {
1932 next;
1933 }
1934 $latest ||= $rev;
1935 $svn_uuid ||= $uuid;
1936
1937 $self->rev_db_set($rev, $c);
1938 print "r$rev = $c\n";
1939 }
1940 command_close_pipe($rev_list, $ctx);
1941 print "Done rebuilding $db_path\n";
1942 }
1943
1944 # rev_db:
1945 # Tie::File seems to be prone to offset errors if revisions get sparse,
1946 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
1947 # one of my favorite modules is out :< Next up would be one of the DBM
1948 # modules, but I'm not sure which is most portable... So I'll just
1949 # go with something that's plain-text, but still capable of
1950 # being randomly accessed. So here's my ultra-simple fixed-width
1951 # database. All records are 40 characters + "\n", so it's easy to seek
1952 # to a revision: (41 * rev) is the byte offset.
1953 # A record of 40 0s denotes an empty revision.
1954 # And yes, it's still pretty fast (faster than Tie::File).
1955 # These files are disposable unless noMetadata or useSvmProps is set
1956
1957 sub _rev_db_set {
1958 my ($fh, $rev, $commit) = @_;
1959 my $offset = $rev * 41;
1960 # assume that append is the common case:
1961 seek $fh, 0, 2 or croak $!;
1962 my $pos = tell $fh;
1963 if ($pos < $offset) {
1964 for (1 .. (($offset - $pos) / 41)) {
1965 print $fh (('0' x 40),"\n") or croak $!;
1966 }
1967 }
1968 seek $fh, $offset, 0 or croak $!;
1969 print $fh $commit,"\n" or croak $!;
1970 }
1971
1972 sub mkfile {
1973 my ($path) = @_;
1974 unless (-e $path) {
1975 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
1976 mkpath([$dir]) unless -d $dir;
1977 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
1978 close $fh or die "Couldn't close (create) $path: $!\n";
1979 }
1980 }
1981
1982 sub rev_db_set {
1983 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
1984 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
1985 my $db = $self->db_path($uuid);
1986 my $db_lock = "$db.lock";
1987 my $sig;
1988 if ($update_ref) {
1989 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
1990 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
1991 }
1992 mkfile($db);
1993
1994 $LOCKFILES{$db_lock} = 1;
1995 my $sync;
1996 # both of these options make our .rev_db file very, very important
1997 # and we can't afford to lose it because rebuild() won't work
1998 if ($self->use_svm_props || $self->no_metadata) {
1999 $sync = 1;
2000 copy($db, $db_lock) or die "rev_db_set(@_): ",
2001 "Failed to copy: ",
2002 "$db => $db_lock ($!)\n";
2003 } else {
2004 rename $db, $db_lock or die "rev_db_set(@_): ",
2005 "Failed to rename: ",
2006 "$db => $db_lock ($!)\n";
2007 }
2008 open my $fh, '+<', $db_lock or die "Couldn't open $db_lock: $!\n";
2009 _rev_db_set($fh, $rev, $commit);
2010 if ($sync) {
2011 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2012 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2013 }
2014 close $fh or croak $!;
2015 if ($update_ref) {
2016 $_head = $self;
2017 command_noisy('update-ref', '-m', "r$rev",
2018 $self->refname, $commit);
2019 }
2020 rename $db_lock, $db or die "rev_db_set(@_): ", "Failed to rename: ",
2021 "$db_lock => $db ($!)\n";
2022 delete $LOCKFILES{$db_lock};
2023 if ($update_ref) {
2024 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2025 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2026 kill $sig, $$ if defined $sig;
2027 }
2028 }
2029
2030 sub rev_db_max {
2031 my ($self) = @_;
2032 $self->rebuild;
2033 my $db_path = $self->db_path;
2034 my @stat = stat $db_path or return 0;
2035 ($stat[7] % 41) == 0 or die "$db_path inconsistent size: $stat[7]\n";
2036 my $max = $stat[7] / 41;
2037 (($max > 0) ? $max - 1 : 0);
2038 }
2039
2040 sub rev_db_get {
2041 my ($self, $rev, $uuid) = @_;
2042 my $ret;
2043 my $offset = $rev * 41;
2044 my $db_path = $self->db_path($uuid);
2045 return undef unless -e $db_path;
2046 open my $fh, '<', $db_path or croak $!;
2047 if (sysseek($fh, $offset, 0) == $offset) {
2048 my $read = sysread($fh, $ret, 40);
2049 $ret = undef if ($read != 40 || $ret eq ('0'x40));
2050 }
2051 close $fh or croak $!;
2052 $ret;
2053 }
2054
2055 sub find_rev_before {
2056 my ($self, $rev, $eq_ok) = @_;
2057 --$rev unless $eq_ok;
2058 while ($rev > 0) {
2059 if (my $c = $self->rev_db_get($rev)) {
2060 return ($rev, $c);
2061 }
2062 --$rev;
2063 }
2064 return (undef, undef);
2065 }
2066
2067 sub _new {
2068 my ($class, $repo_id, $ref_id, $path) = @_;
2069 unless (defined $repo_id && length $repo_id) {
2070 $repo_id = $Git::SVN::default_repo_id;
2071 }
2072 unless (defined $ref_id && length $ref_id) {
2073 $_[2] = $ref_id = $Git::SVN::default_ref_id;
2074 }
2075 $_[1] = $repo_id = sanitize_remote_name($repo_id);
2076 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2077 $_[3] = $path = '' unless (defined $path);
2078 mkpath(["$ENV{GIT_DIR}/svn"]);
2079 bless {
2080 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2081 path => $path, config => "$ENV{GIT_DIR}/svn/config",
2082 db_root => "$dir/.rev_db", repo_id => $repo_id }, $class;
2083 }
2084
2085 sub db_path {
2086 my ($self, $uuid) = @_;
2087 $uuid ||= $self->ra_uuid;
2088 "$self->{db_root}.$uuid";
2089 }
2090
2091 sub uri_encode {
2092 my ($f) = @_;
2093 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2094 $f
2095 }
2096
2097 sub remove_username {
2098 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
2099 }
2100
2101 package Git::SVN::Prompt;
2102 use strict;
2103 use warnings;
2104 require SVN::Core;
2105 use vars qw/$_no_auth_cache $_username/;
2106
2107 sub simple {
2108 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2109 $may_save = undef if $_no_auth_cache;
2110 $default_username = $_username if defined $_username;
2111 if (defined $default_username && length $default_username) {
2112 if (defined $realm && length $realm) {
2113 print STDERR "Authentication realm: $realm\n";
2114 STDERR->flush;
2115 }
2116 $cred->username($default_username);
2117 } else {
2118 username($cred, $realm, $may_save, $pool);
2119 }
2120 $cred->password(_read_password("Password for '" .
2121 $cred->username . "': ", $realm));
2122 $cred->may_save($may_save);
2123 $SVN::_Core::SVN_NO_ERROR;
2124 }
2125
2126 sub ssl_server_trust {
2127 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2128 $may_save = undef if $_no_auth_cache;
2129 print STDERR "Error validating server certificate for '$realm':\n";
2130 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2131 print STDERR " - The certificate is not issued by a trusted ",
2132 "authority. Use the\n",
2133 " fingerprint to validate the certificate manually!\n";
2134 }
2135 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2136 print STDERR " - The certificate hostname does not match.\n";
2137 }
2138 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2139 print STDERR " - The certificate is not yet valid.\n";
2140 }
2141 if ($failures & $SVN::Auth::SSL::EXPIRED) {
2142 print STDERR " - The certificate has expired.\n";
2143 }
2144 if ($failures & $SVN::Auth::SSL::OTHER) {
2145 print STDERR " - The certificate has an unknown error.\n";
2146 }
2147 printf STDERR
2148 "Certificate information:\n".
2149 " - Hostname: %s\n".
2150 " - Valid: from %s until %s\n".
2151 " - Issuer: %s\n".
2152 " - Fingerprint: %s\n",
2153 map $cert_info->$_, qw(hostname valid_from valid_until
2154 issuer_dname fingerprint);
2155 my $choice;
2156 prompt:
2157 print STDERR $may_save ?
2158 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
2159 "(R)eject or accept (t)emporarily? ";
2160 STDERR->flush;
2161 $choice = lc(substr(<STDIN> || 'R', 0, 1));
2162 if ($choice =~ /^t$/i) {
2163 $cred->may_save(undef);
2164 } elsif ($choice =~ /^r$/i) {
2165 return -1;
2166 } elsif ($may_save && $choice =~ /^p$/i) {
2167 $cred->may_save($may_save);
2168 } else {
2169 goto prompt;
2170 }
2171 $cred->accepted_failures($failures);
2172 $SVN::_Core::SVN_NO_ERROR;
2173 }
2174
2175 sub ssl_client_cert {
2176 my ($cred, $realm, $may_save, $pool) = @_;
2177 $may_save = undef if $_no_auth_cache;
2178 print STDERR "Client certificate filename: ";
2179 STDERR->flush;
2180 chomp(my $filename = <STDIN>);
2181 $cred->cert_file($filename);
2182 $cred->may_save($may_save);
2183 $SVN::_Core::SVN_NO_ERROR;
2184 }
2185
2186 sub ssl_client_cert_pw {
2187 my ($cred, $realm, $may_save, $pool) = @_;
2188 $may_save = undef if $_no_auth_cache;
2189 $cred->password(_read_password("Password: ", $realm));
2190 $cred->may_save($may_save);
2191 $SVN::_Core::SVN_NO_ERROR;
2192 }
2193
2194 sub username {
2195 my ($cred, $realm, $may_save, $pool) = @_;
2196 $may_save = undef if $_no_auth_cache;
2197 if (defined $realm && length $realm) {
2198 print STDERR "Authentication realm: $realm\n";
2199 }
2200 my $username;
2201 if (defined $_username) {
2202 $username = $_username;
2203 } else {
2204 print STDERR "Username: ";
2205 STDERR->flush;
2206 chomp($username = <STDIN>);
2207 }
2208 $cred->username($username);
2209 $cred->may_save($may_save);
2210 $SVN::_Core::SVN_NO_ERROR;
2211 }
2212
2213 sub _read_password {
2214 my ($prompt, $realm) = @_;
2215 print STDERR $prompt;
2216 STDERR->flush;
2217 require Term::ReadKey;
2218 Term::ReadKey::ReadMode('noecho');
2219 my $password = '';
2220 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
2221 last if $key =~ /[\012\015]/; # \n\r
2222 $password .= $key;
2223 }
2224 Term::ReadKey::ReadMode('restore');
2225 print STDERR "\n";
2226 STDERR->flush;
2227 $password;
2228 }
2229
2230 package main;
2231
2232 {
2233 my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
2234 $SVN::Node::dir.$SVN::Node::unknown.
2235 $SVN::Node::none.$SVN::Node::file.
2236 $SVN::Node::dir.$SVN::Node::unknown.
2237 $SVN::Auth::SSL::CNMISMATCH.
2238 $SVN::Auth::SSL::NOTYETVALID.
2239 $SVN::Auth::SSL::EXPIRED.
2240 $SVN::Auth::SSL::UNKNOWNCA.
2241 $SVN::Auth::SSL::OTHER;
2242 }
2243
2244 package SVN::Git::Fetcher;
2245 use vars qw/@ISA/;
2246 use strict;
2247 use warnings;
2248 use Carp qw/croak/;
2249 use IO::File qw//;
2250 use Digest::MD5;
2251
2252 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
2253 sub new {
2254 my ($class, $git_svn) = @_;
2255 my $self = SVN::Delta::Editor->new;
2256 bless $self, $class;
2257 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
2258 $self->{empty} = {};
2259 $self->{dir_prop} = {};
2260 $self->{file_prop} = {};
2261 $self->{absent_dir} = {};
2262 $self->{absent_file} = {};
2263 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
2264 $self;
2265 }
2266
2267 sub set_path_strip {
2268 my ($self, $path) = @_;
2269 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
2270 }
2271
2272 sub open_root {
2273 { path => '' };
2274 }
2275
2276 sub open_directory {
2277 my ($self, $path, $pb, $rev) = @_;
2278 { path => $path };
2279 }
2280
2281 sub git_path {
2282 my ($self, $path) = @_;
2283 if ($self->{path_strip}) {
2284 $path =~ s!$self->{path_strip}!! or
2285 die "Failed to strip path '$path' ($self->{path_strip})\n";
2286 }
2287 $path;
2288 }
2289
2290 sub delete_entry {
2291 my ($self, $path, $rev, $pb) = @_;
2292
2293 my $gpath = $self->git_path($path);
2294 return undef if ($gpath eq '');
2295
2296 # remove entire directories.
2297 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
2298 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
2299 -r --name-only -z/,
2300 $self->{c}, '--', $gpath);
2301 local $/ = "\0";
2302 while (<$ls>) {
2303 chomp;
2304 $self->{gii}->remove($_);
2305 print "\tD\t$_\n" unless $::_q;
2306 }
2307 print "\tD\t$gpath/\n" unless $::_q;
2308 command_close_pipe($ls, $ctx);
2309 $self->{empty}->{$path} = 0
2310 } else {
2311 $self->{gii}->remove($gpath);
2312 print "\tD\t$gpath\n" unless $::_q;
2313 }
2314 undef;
2315 }
2316
2317 sub open_file {
2318 my ($self, $path, $pb, $rev) = @_;
2319 my $gpath = $self->git_path($path);
2320 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
2321 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
2322 unless (defined $mode && defined $blob) {
2323 die "$path was not found in commit $self->{c} (r$rev)\n";
2324 }
2325 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
2326 pool => SVN::Pool->new, action => 'M' };
2327 }
2328
2329 sub add_file {
2330 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
2331 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2332 delete $self->{empty}->{$dir};
2333 { path => $path, mode_a => 100644, mode_b => 100644,
2334 pool => SVN::Pool->new, action => 'A' };
2335 }
2336
2337 sub add_directory {
2338 my ($self, $path, $cp_path, $cp_rev) = @_;
2339 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2340 delete $self->{empty}->{$dir};
2341 $self->{empty}->{$path} = 1;
2342 { path => $path };
2343 }
2344
2345 sub change_dir_prop {
2346 my ($self, $db, $prop, $value) = @_;
2347 $self->{dir_prop}->{$db->{path}} ||= {};
2348 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
2349 undef;
2350 }
2351
2352 sub absent_directory {
2353 my ($self, $path, $pb) = @_;
2354 $self->{absent_dir}->{$pb->{path}} ||= [];
2355 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
2356 undef;
2357 }
2358
2359 sub absent_file {
2360 my ($self, $path, $pb) = @_;
2361 $self->{absent_file}->{$pb->{path}} ||= [];
2362 push @{$self->{absent_file}->{$pb->{path}}}, $path;
2363 undef;
2364 }
2365
2366 sub change_file_prop {
2367 my ($self, $fb, $prop, $value) = @_;
2368 if ($prop eq 'svn:executable') {
2369 if ($fb->{mode_b} != 120000) {
2370 $fb->{mode_b} = defined $value ? 100755 : 100644;
2371 }
2372 } elsif ($prop eq 'svn:special') {
2373 $fb->{mode_b} = defined $value ? 120000 : 100644;
2374 } else {
2375 $self->{file_prop}->{$fb->{path}} ||= {};
2376 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
2377 }
2378 undef;
2379 }
2380
2381 sub apply_textdelta {
2382 my ($self, $fb, $exp) = @_;
2383 my $fh = IO::File->new_tmpfile;
2384 $fh->autoflush(1);
2385 # $fh gets auto-closed() by SVN::TxDelta::apply(),
2386 # (but $base does not,) so dup() it for reading in close_file
2387 open my $dup, '<&', $fh or croak $!;
2388 my $base = IO::File->new_tmpfile;
2389 $base->autoflush(1);
2390 if ($fb->{blob}) {
2391 defined (my $pid = fork) or croak $!;
2392 if (!$pid) {
2393 open STDOUT, '>&', $base or croak $!;
2394 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
2395 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
2396 }
2397 waitpid $pid, 0;
2398 croak $? if $?;
2399
2400 if (defined $exp) {
2401 seek $base, 0, 0 or croak $!;
2402 my $md5 = Digest::MD5->new;
2403 $md5->addfile($base);
2404 my $got = $md5->hexdigest;
2405 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
2406 "expected: $exp\n",
2407 " got: $got\n" if ($got ne $exp);
2408 }
2409 }
2410 seek $base, 0, 0 or croak $!;
2411 $fb->{fh} = $dup;
2412 $fb->{base} = $base;
2413 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
2414 }
2415
2416 sub close_file {
2417 my ($self, $fb, $exp) = @_;
2418 my $hash;
2419 my $path = $self->git_path($fb->{path});
2420 if (my $fh = $fb->{fh}) {
2421 seek($fh, 0, 0) or croak $!;
2422 my $md5 = Digest::MD5->new;
2423 $md5->addfile($fh);
2424 my $got = $md5->hexdigest;
2425 die "Checksum mismatch: $path\n",
2426 "expected: $exp\n got: $got\n" if ($got ne $exp);
2427 seek($fh, 0, 0) or croak $!;
2428 if ($fb->{mode_b} == 120000) {
2429 read($fh, my $buf, 5) == 5 or croak $!;
2430 $buf eq 'link ' or die "$path has mode 120000",
2431 "but is not a link\n";
2432 }
2433 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
2434 if (!$pid) {
2435 open STDIN, '<&', $fh or croak $!;
2436 exec qw/git-hash-object -w --stdin/ or croak $!;
2437 }
2438 chomp($hash = do { local $/; <$out> });
2439 close $out or croak $!;
2440 close $fh or croak $!;
2441 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
2442 close $fb->{base} or croak $!;
2443 } else {
2444 $hash = $fb->{blob} or die "no blob information\n";
2445 }
2446 $fb->{pool}->clear;
2447 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
2448 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
2449 undef;
2450 }
2451
2452 sub abort_edit {
2453 my $self = shift;
2454 $self->{nr} = $self->{gii}->{nr};
2455 delete $self->{gii};
2456 $self->SUPER::abort_edit(@_);
2457 }
2458
2459 sub close_edit {
2460 my $self = shift;
2461 $self->{git_commit_ok} = 1;
2462 $self->{nr} = $self->{gii}->{nr};
2463 delete $self->{gii};
2464 $self->SUPER::close_edit(@_);
2465 }
2466
2467 package SVN::Git::Editor;
2468 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
2469 use strict;
2470 use warnings;
2471 use Carp qw/croak/;
2472 use IO::File;
2473 use Digest::MD5;
2474
2475 sub new {
2476 my ($class, $opts) = @_;
2477 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
2478 die "$_ required!\n" unless (defined $opts->{$_});
2479 }
2480
2481 my $pool = SVN::Pool->new;
2482 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
2483 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
2484 $opts->{r}, $mods);
2485
2486 # $opts->{ra} functions should not be used after this:
2487 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
2488 $opts->{editor_cb}, $pool);
2489 my $self = SVN::Delta::Editor->new(@ce, $pool);
2490 bless $self, $class;
2491 foreach (qw/svn_path r tree_a tree_b/) {
2492 $self->{$_} = $opts->{$_};
2493 }
2494 $self->{url} = $opts->{ra}->{url};
2495 $self->{mods} = $mods;
2496 $self->{types} = $types;
2497 $self->{pool} = $pool;
2498 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
2499 $self->{rm} = { };
2500 $self->{path_prefix} = length $self->{svn_path} ?
2501 "$self->{svn_path}/" : '';
2502 return $self;
2503 }
2504
2505 sub generate_diff {
2506 my ($tree_a, $tree_b) = @_;
2507 my @diff_tree = qw(diff-tree -z -r);
2508 if ($_cp_similarity) {
2509 push @diff_tree, "-C$_cp_similarity";
2510 } else {
2511 push @diff_tree, '-C';
2512 }
2513 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
2514 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
2515 push @diff_tree, $tree_a, $tree_b;
2516 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
2517 local $/ = "\0";
2518 my $state = 'meta';
2519 my @mods;
2520 while (<$diff_fh>) {
2521 chomp $_; # this gets rid of the trailing "\0"
2522 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
2523 $::sha1\s($::sha1)\s
2524 ([MTCRAD])\d*$/xo) {
2525 push @mods, { mode_a => $1, mode_b => $2,
2526 sha1_b => $3, chg => $4 };
2527 if ($4 =~ /^(?:C|R)$/) {
2528 $state = 'file_a';
2529 } else {
2530 $state = 'file_b';
2531 }
2532 } elsif ($state eq 'file_a') {
2533 my $x = $mods[$#mods] or croak "Empty array\n";
2534 if ($x->{chg} !~ /^(?:C|R)$/) {
2535 croak "Error parsing $_, $x->{chg}\n";
2536 }
2537 $x->{file_a} = $_;
2538 $state = 'file_b';
2539 } elsif ($state eq 'file_b') {
2540 my $x = $mods[$#mods] or croak "Empty array\n";
2541 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
2542 croak "Error parsing $_, $x->{chg}\n";
2543 }
2544 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
2545 croak "Error parsing $_, $x->{chg}\n";
2546 }
2547 $x->{file_b} = $_;
2548 $state = 'meta';
2549 } else {
2550 croak "Error parsing $_\n";
2551 }
2552 }
2553 command_close_pipe($diff_fh, $ctx);
2554 \@mods;
2555 }
2556
2557 sub check_diff_paths {
2558 my ($ra, $pfx, $rev, $mods) = @_;
2559 my %types;
2560 $pfx .= '/' if length $pfx;
2561
2562 sub type_diff_paths {
2563 my ($ra, $types, $path, $rev) = @_;
2564 my @p = split m#/+#, $path;
2565 my $c = shift @p;
2566 unless (defined $types->{$c}) {
2567 $types->{$c} = $ra->check_path($c, $rev);
2568 }
2569 while (@p) {
2570 $c .= '/' . shift @p;
2571 next if defined $types->{$c};
2572 $types->{$c} = $ra->check_path($c, $rev);
2573 }
2574 }
2575
2576 foreach my $m (@$mods) {
2577 foreach my $f (qw/file_a file_b/) {
2578 next unless defined $m->{$f};
2579 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
2580 if (length $pfx.$dir && ! defined $types{$dir}) {
2581 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
2582 }
2583 }
2584 }
2585 \%types;
2586 }
2587
2588 sub split_path {
2589 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
2590 }
2591
2592 sub repo_path {
2593 my ($self, $path) = @_;
2594 $self->{path_prefix}.(defined $path ? $path : '');
2595 }
2596
2597 sub url_path {
2598 my ($self, $path) = @_;
2599 $self->{url} . '/' . $self->repo_path($path);
2600 }
2601
2602 sub rmdirs {
2603 my ($self) = @_;
2604 my $rm = $self->{rm};
2605 delete $rm->{''}; # we never delete the url we're tracking
2606 return unless %$rm;
2607
2608 foreach (keys %$rm) {
2609 my @d = split m#/#, $_;
2610 my $c = shift @d;
2611 $rm->{$c} = 1;
2612 while (@d) {
2613 $c .= '/' . shift @d;
2614 $rm->{$c} = 1;
2615 }
2616 }
2617 delete $rm->{$self->{svn_path}};
2618 delete $rm->{''}; # we never delete the url we're tracking
2619 return unless %$rm;
2620
2621 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
2622 $self->{tree_b});
2623 local $/ = "\0";
2624 while (<$fh>) {
2625 chomp;
2626 my @dn = split m#/#, $_;
2627 while (pop @dn) {
2628 delete $rm->{join '/', @dn};
2629 }
2630 unless (%$rm) {
2631 close $fh;
2632 return;
2633 }
2634 }
2635 command_close_pipe($fh, $ctx);
2636
2637 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
2638 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
2639 $self->close_directory($bat->{$d}, $p);
2640 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
2641 print "\tD+\t$d/\n" unless $::_q;
2642 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
2643 delete $bat->{$d};
2644 }
2645 }
2646
2647 sub open_or_add_dir {
2648 my ($self, $full_path, $baton) = @_;
2649 my $t = $self->{types}->{$full_path};
2650 if (!defined $t) {
2651 die "$full_path not known in r$self->{r} or we have a bug!\n";
2652 }
2653 if ($t == $SVN::Node::none) {
2654 return $self->add_directory($full_path, $baton,
2655 undef, -1, $self->{pool});
2656 } elsif ($t == $SVN::Node::dir) {
2657 return $self->open_directory($full_path, $baton,
2658 $self->{r}, $self->{pool});
2659 }
2660 print STDERR "$full_path already exists in repository at ",
2661 "r$self->{r} and it is not a directory (",
2662 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
2663 exit 1;
2664 }
2665
2666 sub ensure_path {
2667 my ($self, $path) = @_;
2668 my $bat = $self->{bat};
2669 my $repo_path = $self->repo_path($path);
2670 return $bat->{''} unless (length $repo_path);
2671 my @p = split m#/+#, $repo_path;
2672 my $c = shift @p;
2673 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
2674 while (@p) {
2675 my $c0 = $c;
2676 $c .= '/' . shift @p;
2677 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
2678 }
2679 return $bat->{$c};
2680 }
2681
2682 sub A {
2683 my ($self, $m) = @_;
2684 my ($dir, $file) = split_path($m->{file_b});
2685 my $pbat = $self->ensure_path($dir);
2686 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2687 undef, -1);
2688 print "\tA\t$m->{file_b}\n" unless $::_q;
2689 $self->chg_file($fbat, $m);
2690 $self->close_file($fbat,undef,$self->{pool});
2691 }
2692
2693 sub C {
2694 my ($self, $m) = @_;
2695 my ($dir, $file) = split_path($m->{file_b});
2696 my $pbat = $self->ensure_path($dir);
2697 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2698 $self->url_path($m->{file_a}), $self->{r});
2699 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2700 $self->chg_file($fbat, $m);
2701 $self->close_file($fbat,undef,$self->{pool});
2702 }
2703
2704 sub delete_entry {
2705 my ($self, $path, $pbat) = @_;
2706 my $rpath = $self->repo_path($path);
2707 my ($dir, $file) = split_path($rpath);
2708 $self->{rm}->{$dir} = 1;
2709 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
2710 }
2711
2712 sub R {
2713 my ($self, $m) = @_;
2714 my ($dir, $file) = split_path($m->{file_b});
2715 my $pbat = $self->ensure_path($dir);
2716 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2717 $self->url_path($m->{file_a}), $self->{r});
2718 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2719 $self->chg_file($fbat, $m);
2720 $self->close_file($fbat,undef,$self->{pool});
2721
2722 ($dir, $file) = split_path($m->{file_a});
2723 $pbat = $self->ensure_path($dir);
2724 $self->delete_entry($m->{file_a}, $pbat);
2725 }
2726
2727 sub M {
2728 my ($self, $m) = @_;
2729 my ($dir, $file) = split_path($m->{file_b});
2730 my $pbat = $self->ensure_path($dir);
2731 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
2732 $pbat,$self->{r},$self->{pool});
2733 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
2734 $self->chg_file($fbat, $m);
2735 $self->close_file($fbat,undef,$self->{pool});
2736 }
2737
2738 sub T { shift->M(@_) }
2739
2740 sub change_file_prop {
2741 my ($self, $fbat, $pname, $pval) = @_;
2742 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
2743 }
2744
2745 sub chg_file {
2746 my ($self, $fbat, $m) = @_;
2747 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
2748 $self->change_file_prop($fbat,'svn:executable','*');
2749 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
2750 $self->change_file_prop($fbat,'svn:executable',undef);
2751 }
2752 my $fh = IO::File->new_tmpfile or croak $!;
2753 if ($m->{mode_b} =~ /^120/) {
2754 print $fh 'link ' or croak $!;
2755 $self->change_file_prop($fbat,'svn:special','*');
2756 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
2757 $self->change_file_prop($fbat,'svn:special',undef);
2758 }
2759 defined(my $pid = fork) or croak $!;
2760 if (!$pid) {
2761 open STDOUT, '>&', $fh or croak $!;
2762 exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!;
2763 }
2764 waitpid $pid, 0;
2765 croak $? if $?;
2766 $fh->flush == 0 or croak $!;
2767 seek $fh, 0, 0 or croak $!;
2768
2769 my $md5 = Digest::MD5->new;
2770 $md5->addfile($fh) or croak $!;
2771 seek $fh, 0, 0 or croak $!;
2772
2773 my $exp = $md5->hexdigest;
2774 my $pool = SVN::Pool->new;
2775 my $atd = $self->apply_textdelta($fbat, undef, $pool);
2776 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
2777 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
2778 $pool->clear;
2779
2780 close $fh or croak $!;
2781 }
2782
2783 sub D {
2784 my ($self, $m) = @_;
2785 my ($dir, $file) = split_path($m->{file_b});
2786 my $pbat = $self->ensure_path($dir);
2787 print "\tD\t$m->{file_b}\n" unless $::_q;
2788 $self->delete_entry($m->{file_b}, $pbat);
2789 }
2790
2791 sub close_edit {
2792 my ($self) = @_;
2793 my ($p,$bat) = ($self->{pool}, $self->{bat});
2794 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
2795 $self->close_directory($bat->{$_}, $p);
2796 }
2797 $self->SUPER::close_edit($p);
2798 $p->clear;
2799 }
2800
2801 sub abort_edit {
2802 my ($self) = @_;
2803 $self->SUPER::abort_edit($self->{pool});
2804 }
2805
2806 sub DESTROY {
2807 my $self = shift;
2808 $self->SUPER::DESTROY(@_);
2809 $self->{pool}->clear;
2810 }
2811
2812 # this drives the editor
2813 sub apply_diff {
2814 my ($self) = @_;
2815 my $mods = $self->{mods};
2816 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
2817 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
2818 my $f = $m->{chg};
2819 if (defined $o{$f}) {
2820 $self->$f($m);
2821 } else {
2822 fatal("Invalid change type: $f\n");
2823 }
2824 }
2825 $self->rmdirs if $_rmdir;
2826 if (@$mods == 0) {
2827 $self->abort_edit;
2828 } else {
2829 $self->close_edit;
2830 }
2831 return scalar @$mods;
2832 }
2833
2834 package Git::SVN::Ra;
2835 use vars qw/@ISA $config_dir $_log_window_size/;
2836 use strict;
2837 use warnings;
2838 my ($can_do_switch);
2839 my $RA;
2840
2841 BEGIN {
2842 # enforce temporary pool usage for some simple functions
2843 my $e;
2844 foreach (qw/get_latest_revnum get_uuid get_repos_root/) {
2845 $e .= "sub $_ {
2846 my \$self = shift;
2847 my \$pool = SVN::Pool->new;
2848 my \@ret = \$self->SUPER::$_(\@_,\$pool);
2849 \$pool->clear;
2850 wantarray ? \@ret : \$ret[0]; }\n";
2851 }
2852
2853 # get_dir needs $pool held in cache for dirents to work,
2854 # check_path is cacheable and rev_proplist is close enough
2855 # for our purposes.
2856 foreach (qw/check_path get_dir rev_proplist/) {
2857 $e .= "my \%${_}_cache; my \$${_}_rev = 0; sub $_ {
2858 my \$self = shift;
2859 my \$r = pop;
2860 my \$k = join(\"\\0\", \@_);
2861 if (my \$x = \$${_}_cache{\$r}->{\$k}) {
2862 return wantarray ? \@\$x : \$x->[0];
2863 }
2864 my \$pool = SVN::Pool->new;
2865 my \@ret = \$self->SUPER::$_(\@_, \$r, \$pool);
2866 if (\$r != \$${_}_rev) {
2867 \%${_}_cache = ( pool => [] );
2868 \$${_}_rev = \$r;
2869 }
2870 \$${_}_cache{\$r}->{\$k} = \\\@ret;
2871 push \@{\$${_}_cache{pool}}, \$pool;
2872 wantarray ? \@ret : \$ret[0]; }\n";
2873 }
2874 $e .= "\n1;";
2875 eval $e or die $@;
2876 }
2877
2878 sub new {
2879 my ($class, $url) = @_;
2880 $url =~ s!/+$!!;
2881 return $RA if ($RA && $RA->{url} eq $url);
2882 $RA->{pool}->clear if $RA;
2883
2884 SVN::_Core::svn_config_ensure($config_dir, undef);
2885 my ($baton, $callbacks) = SVN::Core::auth_open_helper([
2886 SVN::Client::get_simple_provider(),
2887 SVN::Client::get_ssl_server_trust_file_provider(),
2888 SVN::Client::get_simple_prompt_provider(
2889 \&Git::SVN::Prompt::simple, 2),
2890 SVN::Client::get_ssl_client_cert_prompt_provider(
2891 \&Git::SVN::Prompt::ssl_client_cert, 2),
2892 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
2893 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
2894 SVN::Client::get_username_provider(),
2895 SVN::Client::get_ssl_server_trust_prompt_provider(
2896 \&Git::SVN::Prompt::ssl_server_trust),
2897 SVN::Client::get_username_prompt_provider(
2898 \&Git::SVN::Prompt::username, 2),
2899 ]);
2900 my $config = SVN::Core::config_get_config($config_dir);
2901 my $self = SVN::Ra->new(url => $url, auth => $baton,
2902 config => $config,
2903 pool => SVN::Pool->new,
2904 auth_provider_callbacks => $callbacks);
2905 $self->{svn_path} = $url;
2906 $self->{repos_root} = $self->get_repos_root;
2907 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
2908 $RA = bless $self, $class;
2909 }
2910
2911 sub DESTROY {
2912 # do not call the real DESTROY since we store ourselves in $RA
2913 }
2914
2915 sub get_log {
2916 my ($self, @args) = @_;
2917 my $pool = SVN::Pool->new;
2918 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
2919 my $ret = $self->SUPER::get_log(@args, $pool);
2920 $pool->clear;
2921 $ret;
2922 }
2923
2924 sub get_commit_editor {
2925 my ($self, $log, $cb, $pool) = @_;
2926 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
2927 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
2928 }
2929
2930 sub gs_do_update {
2931 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
2932 my $new = ($rev_a == $rev_b);
2933 my $path = $gs->{path};
2934
2935 if ($new && -e $gs->{index}) {
2936 unlink $gs->{index} or die
2937 "Couldn't unlink index: $gs->{index}: $!\n";
2938 }
2939 my $pool = SVN::Pool->new;
2940 $editor->set_path_strip($path);
2941 my (@pc) = split m#/#, $path;
2942 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
2943 1, $editor, $pool);
2944 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2945
2946 # Since we can't rely on svn_ra_reparent being available, we'll
2947 # just have to do some magic with set_path to make it so
2948 # we only want a partial path.
2949 my $sp = '';
2950 my $final = join('/', @pc);
2951 while (@pc) {
2952 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
2953 $sp .= '/' if length $sp;
2954 $sp .= shift @pc;
2955 }
2956 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
2957
2958 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
2959
2960 $reporter->finish_report($pool);
2961 $pool->clear;
2962 $editor->{git_commit_ok};
2963 }
2964
2965 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
2966 # svn_ra_reparent didn't work before 1.4)
2967 sub gs_do_switch {
2968 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
2969 my $path = $gs->{path};
2970 my $pool = SVN::Pool->new;
2971
2972 my $full_url = $self->{url};
2973 my $old_url = $full_url;
2974 $full_url .= "/$path" if length $path;
2975 my ($ra, $reparented);
2976 if ($old_url ne $full_url) {
2977 if ($old_url !~ m#^svn(\+ssh)?://#) {
2978 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url,
2979 $pool);
2980 $self->{url} = $full_url;
2981 $reparented = 1;
2982 } else {
2983 $ra = Git::SVN::Ra->new($full_url);
2984 }
2985 }
2986 $ra ||= $self;
2987 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
2988 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2989 $reporter->set_path('', $rev_a, 0, @lock, $pool);
2990 $reporter->finish_report($pool);
2991
2992 if ($reparented) {
2993 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
2994 $self->{url} = $old_url;
2995 }
2996
2997 $pool->clear;
2998 $editor->{git_commit_ok};
2999 }
3000
3001 sub gs_fetch_loop_common {
3002 my ($self, $base, $head, $gsv, $globs) = @_;
3003 return if ($base > $head);
3004 my $inc = $_log_window_size;
3005 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
3006 my %common;
3007 my $common_max = scalar @$gsv;
3008
3009 foreach my $gs (@$gsv) {
3010 my @tmp = split m#/#, $gs->{path};
3011 my $p = '';
3012 foreach (@tmp) {
3013 $p .= length($p) ? "/$_" : $_;
3014 $common{$p} ||= 0;
3015 $common{$p}++;
3016 }
3017 }
3018 $globs ||= [];
3019 $common_max += scalar @$globs;
3020 foreach my $glob (@$globs) {
3021 my @tmp = split m#/#, $glob->{path}->{left};
3022 my $p = '';
3023 foreach (@tmp) {
3024 $p .= length($p) ? "/$_" : $_;
3025 $common{$p} ||= 0;
3026 $common{$p}++;
3027 }
3028 }
3029
3030 my $longest_path = '';
3031 foreach (sort {length $b <=> length $a} keys %common) {
3032 if ($common{$_} == $common_max) {
3033 $longest_path = $_;
3034 last;
3035 }
3036 }
3037 while (1) {
3038 my %revs;
3039 my $err;
3040 my $err_handler = $SVN::Error::handler;
3041 $SVN::Error::handler = sub {
3042 ($err) = @_;
3043 skip_unknown_revs($err);
3044 };
3045 sub _cb {
3046 my ($paths, $r, $author, $date, $log) = @_;
3047 [ dup_changed_paths($paths),
3048 { author => $author, date => $date, log => $log } ];
3049 }
3050 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
3051 sub { $revs{$_[1]} = _cb(@_) });
3052 if ($err && $max >= $head) {
3053 print STDERR "Path '$longest_path' ",
3054 "was probably deleted:\n",
3055 $err->expanded_message,
3056 "\nWill attempt to follow ",
3057 "revisions r$min .. r$max ",
3058 "committed before the deletion\n";
3059 my $hi = $max;
3060 while (--$hi >= $min) {
3061 my $ok;
3062 $self->get_log([$longest_path], $min, $hi,
3063 0, 1, 1, sub {
3064 $ok ||= $_[1];
3065 $revs{$_[1]} = _cb(@_) });
3066 if ($ok) {
3067 print STDERR "r$min .. r$ok OK\n";
3068 last;
3069 }
3070 }
3071 }
3072 $SVN::Error::handler = $err_handler;
3073
3074 my %exists = map { $_->{path} => $_ } @$gsv;
3075 foreach my $r (sort {$a <=> $b} keys %revs) {
3076 my ($paths, $logged) = @{$revs{$r}};
3077
3078 foreach my $gs ($self->match_globs(\%exists, $paths,
3079 $globs, $r)) {
3080 if ($gs->rev_db_max >= $r) {
3081 next;
3082 }
3083 next unless $gs->match_paths($paths, $r);
3084 $gs->{logged_rev_props} = $logged;
3085 if (my $last_commit = $gs->last_commit) {
3086 $gs->assert_index_clean($last_commit);
3087 }
3088 my $log_entry = $gs->do_fetch($paths, $r);
3089 if ($log_entry) {
3090 $gs->do_git_commit($log_entry);
3091 }
3092 }
3093 foreach my $g (@$globs) {
3094 my $k = "svn-remote.$g->{remote}." .
3095 "$g->{t}-maxRev";
3096 Git::SVN::tmp_config($k, $r);
3097 }
3098 }
3099 # pre-fill the .rev_db since it'll eventually get filled in
3100 # with '0' x40 if something new gets committed
3101 foreach my $gs (@$gsv) {
3102 next if defined $gs->rev_db_get($max);
3103 $gs->rev_db_set($max, 0 x40);
3104 }
3105 foreach my $g (@$globs) {
3106 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
3107 Git::SVN::tmp_config($k, $max);
3108 }
3109 last if $max >= $head;
3110 $min = $max + 1;
3111 $max += $inc;
3112 $max = $head if ($max > $head);
3113 }
3114 }
3115
3116 sub match_globs {
3117 my ($self, $exists, $paths, $globs, $r) = @_;
3118
3119 sub get_dir_check {
3120 my ($self, $exists, $g, $r) = @_;
3121 my @x = eval { $self->get_dir($g->{path}->{left}, $r) };
3122 return unless scalar @x == 3;
3123 my $dirents = $x[0];
3124 foreach my $de (keys %$dirents) {
3125 next if $dirents->{$de}->kind != $SVN::Node::dir;
3126 my $p = $g->{path}->full_path($de);
3127 next if $exists->{$p};
3128 next if (length $g->{path}->{right} &&
3129 ($self->check_path($p, $r) !=
3130 $SVN::Node::dir));
3131 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
3132 $g->{ref}->full_path($de), 1);
3133 }
3134 }
3135 foreach my $g (@$globs) {
3136 if (my $path = $paths->{"/$g->{path}->{left}"}) {
3137 if ($path->{action} =~ /^[AR]$/) {
3138 get_dir_check($self, $exists, $g, $r);
3139 }
3140 }
3141 foreach (keys %$paths) {
3142 if (/$g->{path}->{left_regex}/ &&
3143 !/$g->{path}->{regex}/) {
3144 next if $paths->{$_}->{action} !~ /^[AR]$/;
3145 get_dir_check($self, $exists, $g, $r);
3146 }
3147 next unless /$g->{path}->{regex}/;
3148 my $p = $1;
3149 my $pathname = $g->{path}->full_path($p);
3150 next if $exists->{$pathname};
3151 $exists->{$pathname} = Git::SVN->init(
3152 $self->{url}, $pathname, undef,
3153 $g->{ref}->full_path($p), 1);
3154 }
3155 my $c = '';
3156 foreach (split m#/#, $g->{path}->{left}) {
3157 $c .= "/$_";
3158 next unless ($paths->{$c} &&
3159 ($paths->{$c}->{action} =~ /^[AR]$/));
3160 get_dir_check($self, $exists, $g, $r);
3161 }
3162 }
3163 values %$exists;
3164 }
3165
3166 sub minimize_url {
3167 my ($self) = @_;
3168 return $self->{url} if ($self->{url} eq $self->{repos_root});
3169 my $url = $self->{repos_root};
3170 my @components = split(m!/!, $self->{svn_path});
3171 my $c = '';
3172 do {
3173 $url .= "/$c" if length $c;
3174 eval { (ref $self)->new($url)->get_latest_revnum };
3175 } while ($@ && ($c = shift @components));
3176 $url;
3177 }
3178
3179 sub can_do_switch {
3180 my $self = shift;
3181 unless (defined $can_do_switch) {
3182 my $pool = SVN::Pool->new;
3183 my $rep = eval {
3184 $self->do_switch(1, '', 0, $self->{url},
3185 SVN::Delta::Editor->new, $pool);
3186 };
3187 if ($@) {
3188 $can_do_switch = 0;
3189 } else {
3190 $rep->abort_report($pool);
3191 $can_do_switch = 1;
3192 }
3193 $pool->clear;
3194 }
3195 $can_do_switch;
3196 }
3197
3198 sub skip_unknown_revs {
3199 my ($err) = @_;
3200 my $errno = $err->apr_err();
3201 # Maybe the branch we're tracking didn't
3202 # exist when the repo started, so it's
3203 # not an error if it doesn't, just continue
3204 #
3205 # Wonderfully consistent library, eh?
3206 # 160013 - svn:// and file://
3207 # 175002 - http(s)://
3208 # 175007 - http(s):// (this repo required authorization, too...)
3209 # More codes may be discovered later...
3210 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
3211 warn "W: Ignoring error from SVN, path probably ",
3212 "does not exist: ($errno): ",
3213 $err->expanded_message,"\n";
3214 return;
3215 }
3216 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
3217 }
3218
3219 # svn_log_changed_path_t objects passed to get_log are likely to be
3220 # overwritten even if only the refs are copied to an external variable,
3221 # so we should dup the structures in their entirety. Using an externally
3222 # passed pool (instead of our temporary and quickly cleared pool in
3223 # Git::SVN::Ra) does not help matters at all...
3224 sub dup_changed_paths {
3225 my ($paths) = @_;
3226 return undef unless $paths;
3227 my %ret;
3228 foreach my $p (keys %$paths) {
3229 my $i = $paths->{$p};
3230 my %s = map { $_ => $i->$_ }
3231 qw/copyfrom_path copyfrom_rev action/;
3232 $ret{$p} = \%s;
3233 }
3234 \%ret;
3235 }
3236
3237 package Git::SVN::Log;
3238 use strict;
3239 use warnings;
3240 use POSIX qw/strftime/;
3241 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
3242 %rusers $show_commit $incremental/;
3243 my $l_fmt;
3244
3245 sub cmt_showable {
3246 my ($c) = @_;
3247 return 1 if defined $c->{r};
3248 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
3249 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
3250 my @log = command(qw/cat-file commit/, $c->{c});
3251 shift @log while ($log[0] ne "\n");
3252 shift @log;
3253 @{$c->{l}} = grep !/^git-svn-id: /, @log;
3254
3255 (undef, $c->{r}, undef) = ::extract_metadata(
3256 (grep(/^git-svn-id: /, @log))[-1]);
3257 }
3258 return defined $c->{r};
3259 }
3260
3261 sub log_use_color {
3262 return 1 if $color;
3263 my ($dc, $dcvar);
3264 $dcvar = 'color.diff';
3265 $dc = `git-config --get $dcvar`;
3266 if ($dc eq '') {
3267 # nothing at all; fallback to "diff.color"
3268 $dcvar = 'diff.color';
3269 $dc = `git-config --get $dcvar`;
3270 }
3271 chomp($dc);
3272 if ($dc eq 'auto') {
3273 my $pc;
3274 $pc = `git-config --get color.pager`;
3275 if ($pc eq '') {
3276 # does not have it -- fallback to pager.color
3277 $pc = `git-config --bool --get pager.color`;
3278 }
3279 else {
3280 $pc = `git-config --bool --get color.pager`;
3281 if ($?) {
3282 $pc = 'false';
3283 }
3284 }
3285 chomp($pc);
3286 if (-t *STDOUT || (defined $pager && $pc eq 'true')) {
3287 return ($ENV{TERM} && $ENV{TERM} ne 'dumb');
3288 }
3289 return 0;
3290 }
3291 return 0 if $dc eq 'never';
3292 return 1 if $dc eq 'always';
3293 chomp($dc = `git-config --bool --get $dcvar`);
3294 return ($dc eq 'true');
3295 }
3296
3297 sub git_svn_log_cmd {
3298 my ($r_min, $r_max, @args) = @_;
3299 my $head = 'HEAD';
3300 foreach my $x (@args) {
3301 last if $x eq '--';
3302 next unless ::verify_ref("$x^0");
3303 $head = $x;
3304 last;
3305 }
3306
3307 my $url = (::working_head_info($head))[0];
3308 my $gs = Git::SVN->find_by_url($url) || Git::SVN->_new;
3309 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
3310 $gs->refname);
3311 push @cmd, '-r' unless $non_recursive;
3312 push @cmd, qw/--raw --name-status/ if $verbose;
3313 push @cmd, '--color' if log_use_color();
3314 return @cmd unless defined $r_max;
3315 if ($r_max == $r_min) {
3316 push @cmd, '--max-count=1';
3317 if (my $c = $gs->rev_db_get($r_max)) {
3318 push @cmd, $c;
3319 }
3320 } else {
3321 my ($c_min, $c_max);
3322 $c_max = $gs->rev_db_get($r_max);
3323 $c_min = $gs->rev_db_get($r_min);
3324 if (defined $c_min && defined $c_max) {
3325 if ($r_max > $r_max) {
3326 push @cmd, "$c_min..$c_max";
3327 } else {
3328 push @cmd, "$c_max..$c_min";
3329 }
3330 } elsif ($r_max > $r_min) {
3331 push @cmd, $c_max;
3332 } else {
3333 push @cmd, $c_min;
3334 }
3335 }
3336 return @cmd;
3337 }
3338
3339 # adapted from pager.c
3340 sub config_pager {
3341 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
3342 if (!defined $pager) {
3343 $pager = 'less';
3344 } elsif (length $pager == 0 || $pager eq 'cat') {
3345 $pager = undef;
3346 }
3347 }
3348
3349 sub run_pager {
3350 return unless -t *STDOUT;
3351 pipe my $rfd, my $wfd or return;
3352 defined(my $pid = fork) or ::fatal "Can't fork: $!\n";
3353 if (!$pid) {
3354 open STDOUT, '>&', $wfd or
3355 ::fatal "Can't redirect to stdout: $!\n";
3356 return;
3357 }
3358 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!\n";
3359 $ENV{LESS} ||= 'FRSX';
3360 exec $pager or ::fatal "Can't run pager: $! ($pager)\n";
3361 }
3362
3363 sub tz_to_s_offset {
3364 my ($tz) = @_;
3365 $tz =~ s/(\d\d)$//;
3366 return ($1 * 60) + ($tz * 3600);
3367 }
3368
3369 sub get_author_info {
3370 my ($dest, $author, $t, $tz) = @_;
3371 $author =~ s/(?:^\s*|\s*$)//g;
3372 $dest->{a_raw} = $author;
3373 my $au;
3374 if ($::_authors) {
3375 $au = $rusers{$author} || undef;
3376 }
3377 if (!$au) {
3378 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
3379 }
3380 $dest->{t} = $t;
3381 $dest->{tz} = $tz;
3382 $dest->{a} = $au;
3383 # Date::Parse isn't in the standard Perl distro :(
3384 if ($tz =~ s/^\+//) {
3385 $t += tz_to_s_offset($tz);
3386 } elsif ($tz =~ s/^\-//) {
3387 $t -= tz_to_s_offset($tz);
3388 }
3389 $dest->{t_utc} = $t;
3390 }
3391
3392 sub process_commit {
3393 my ($c, $r_min, $r_max, $defer) = @_;
3394 if (defined $r_min && defined $r_max) {
3395 if ($r_min == $c->{r} && $r_min == $r_max) {
3396 show_commit($c);
3397 return 0;
3398 }
3399 return 1 if $r_min == $r_max;
3400 if ($r_min < $r_max) {
3401 # we need to reverse the print order
3402 return 0 if (defined $limit && --$limit < 0);
3403 push @$defer, $c;
3404 return 1;
3405 }
3406 if ($r_min != $r_max) {
3407 return 1 if ($r_min < $c->{r});
3408 return 1 if ($r_max > $c->{r});
3409 }
3410 }
3411 return 0 if (defined $limit && --$limit < 0);
3412 show_commit($c);
3413 return 1;
3414 }
3415
3416 sub show_commit {
3417 my $c = shift;
3418 if ($oneline) {
3419 my $x = "\n";
3420 if (my $l = $c->{l}) {
3421 while ($l->[0] =~ /^\s*$/) { shift @$l }
3422 $x = $l->[0];
3423 }
3424 $l_fmt ||= 'A' . length($c->{r});
3425 print 'r',pack($l_fmt, $c->{r}),' | ';
3426 print "$c->{c} | " if $show_commit;
3427 print $x;
3428 } else {
3429 show_commit_normal($c);
3430 }
3431 }
3432
3433 sub show_commit_changed_paths {
3434 my ($c) = @_;
3435 return unless $c->{changed};
3436 print "Changed paths:\n", @{$c->{changed}};
3437 }
3438
3439 sub show_commit_normal {
3440 my ($c) = @_;
3441 print '-' x72, "\nr$c->{r} | ";
3442 print "$c->{c} | " if $show_commit;
3443 print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
3444 localtime($c->{t_utc})), ' | ';
3445 my $nr_line = 0;
3446
3447 if (my $l = $c->{l}) {
3448 while ($l->[$#$l] eq "\n" && $#$l > 0
3449 && $l->[($#$l - 1)] eq "\n") {
3450 pop @$l;
3451 }
3452 $nr_line = scalar @$l;
3453 if (!$nr_line) {
3454 print "1 line\n\n\n";
3455 } else {
3456 if ($nr_line == 1) {
3457 $nr_line = '1 line';
3458 } else {
3459 $nr_line .= ' lines';
3460 }
3461 print $nr_line, "\n";
3462 show_commit_changed_paths($c);
3463 print "\n";
3464 print $_ foreach @$l;
3465 }
3466 } else {
3467 print "1 line\n";
3468 show_commit_changed_paths($c);
3469 print "\n";
3470
3471 }
3472 foreach my $x (qw/raw stat diff/) {
3473 if ($c->{$x}) {
3474 print "\n";
3475 print $_ foreach @{$c->{$x}}
3476 }
3477 }
3478 }
3479
3480 sub cmd_show_log {
3481 my (@args) = @_;
3482 my ($r_min, $r_max);
3483 my $r_last = -1; # prevent dupes
3484 if (defined $TZ) {
3485 $ENV{TZ} = $TZ;
3486 } else {
3487 delete $ENV{TZ};
3488 }
3489 if (defined $::_revision) {
3490 if ($::_revision =~ /^(\d+):(\d+)$/) {
3491 ($r_min, $r_max) = ($1, $2);
3492 } elsif ($::_revision =~ /^\d+$/) {
3493 $r_min = $r_max = $::_revision;
3494 } else {
3495 ::fatal "-r$::_revision is not supported, use ",
3496 "standard \'git log\' arguments instead\n";
3497 }
3498 }
3499
3500 config_pager();
3501 @args = (git_svn_log_cmd($r_min, $r_max, @args), @args);
3502 my $log = command_output_pipe(@args);
3503 run_pager();
3504 my (@k, $c, $d, $stat);
3505 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
3506 while (<$log>) {
3507 if (/^${esc_color}commit ($::sha1_short)/o) {
3508 my $cmt = $1;
3509 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
3510 $r_last = $c->{r};
3511 process_commit($c, $r_min, $r_max, \@k) or
3512 goto out;
3513 }
3514 $d = undef;
3515 $c = { c => $cmt };
3516 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
3517 get_author_info($c, $1, $2, $3);
3518 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
3519 # ignore
3520 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
3521 push @{$c->{raw}}, $_;
3522 } elsif (/^${esc_color}[ACRMDT]\t/) {
3523 # we could add $SVN->{svn_path} here, but that requires
3524 # remote access at the moment (repo_path_split)...
3525 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
3526 push @{$c->{changed}}, $_;
3527 } elsif (/^${esc_color}diff /o) {
3528 $d = 1;
3529 push @{$c->{diff}}, $_;
3530 } elsif ($d) {
3531 push @{$c->{diff}}, $_;
3532 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
3533 $esc_color*[\+\-]*$esc_color$/x) {
3534 $stat = 1;
3535 push @{$c->{stat}}, $_;
3536 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
3537 push @{$c->{stat}}, $_;
3538 $stat = undef;
3539 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
3540 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
3541 } elsif (s/^${esc_color} //o) {
3542 push @{$c->{l}}, $_;
3543 }
3544 }
3545 if ($c && defined $c->{r} && $c->{r} != $r_last) {
3546 $r_last = $c->{r};
3547 process_commit($c, $r_min, $r_max, \@k);
3548 }
3549 if (@k) {
3550 my $swap = $r_max;
3551 $r_max = $r_min;
3552 $r_min = $swap;
3553 process_commit($_, $r_min, $r_max) foreach reverse @k;
3554 }
3555 out:
3556 close $log;
3557 print '-' x72,"\n" unless $incremental || $oneline;
3558 }
3559
3560 package Git::SVN::Migration;
3561 # these version numbers do NOT correspond to actual version numbers
3562 # of git nor git-svn. They are just relative.
3563 #
3564 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
3565 #
3566 # v1 layout: .git/$id/info/url, refs/remotes/$id
3567 #
3568 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
3569 #
3570 # v3 layout: .git/svn/$id, refs/remotes/$id
3571 # - info/url may remain for backwards compatibility
3572 # - this is what we migrate up to this layout automatically,
3573 # - this will be used by git svn init on single branches
3574 # v3.1 layout (auto migrated):
3575 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
3576 # for backwards compatibility
3577 #
3578 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
3579 # - this is only created for newly multi-init-ed
3580 # repositories. Similar in spirit to the
3581 # --use-separate-remotes option in git-clone (now default)
3582 # - we do not automatically migrate to this (following
3583 # the example set by core git)
3584 use strict;
3585 use warnings;
3586 use Carp qw/croak/;
3587 use File::Path qw/mkpath/;
3588 use File::Basename qw/dirname basename/;
3589 use vars qw/$_minimize/;
3590
3591 sub migrate_from_v0 {
3592 my $git_dir = $ENV{GIT_DIR};
3593 return undef unless -d $git_dir;
3594 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3595 my $migrated = 0;
3596 while (<$fh>) {
3597 chomp;
3598 my ($id, $orig_ref) = ($_, $_);
3599 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
3600 next unless -f "$git_dir/$id/info/url";
3601 my $new_ref = "refs/remotes/$id";
3602 if (::verify_ref("$new_ref^0")) {
3603 print STDERR "W: $orig_ref is probably an old ",
3604 "branch used by an ancient version of ",
3605 "git-svn.\n",
3606 "However, $new_ref also exists.\n",
3607 "We will not be able ",
3608 "to use this branch until this ",
3609 "ambiguity is resolved.\n";
3610 next;
3611 }
3612 print STDERR "Migrating from v0 layout...\n" if !$migrated;
3613 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
3614 command_noisy('update-ref', $new_ref, $orig_ref);
3615 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
3616 $migrated++;
3617 }
3618 command_close_pipe($fh, $ctx);
3619 print STDERR "Done migrating from v0 layout...\n" if $migrated;
3620 $migrated;
3621 }
3622
3623 sub migrate_from_v1 {
3624 my $git_dir = $ENV{GIT_DIR};
3625 my $migrated = 0;
3626 return $migrated unless -d $git_dir;
3627 my $svn_dir = "$git_dir/svn";
3628
3629 # just in case somebody used 'svn' as their $id at some point...
3630 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
3631
3632 print STDERR "Migrating from a git-svn v1 layout...\n";
3633 mkpath([$svn_dir]);
3634 print STDERR "Data from a previous version of git-svn exists, but\n\t",
3635 "$svn_dir\n\t(required for this version ",
3636 "($::VERSION) of git-svn) does not. exist\n";
3637 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3638 while (<$fh>) {
3639 my $x = $_;
3640 next unless $x =~ s#^refs/remotes/##;
3641 chomp $x;
3642 next unless -f "$git_dir/$x/info/url";
3643 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
3644 next unless $u;
3645 my $dn = dirname("$git_dir/svn/$x");
3646 mkpath([$dn]) unless -d $dn;
3647 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
3648 mkpath(["$git_dir/svn/svn"]);
3649 print STDERR " - $git_dir/$x/info => ",
3650 "$git_dir/svn/$x/info\n";
3651 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
3652 croak "$!: $x";
3653 # don't worry too much about these, they probably
3654 # don't exist with repos this old (save for index,
3655 # and we can easily regenerate that)
3656 foreach my $f (qw/unhandled.log index .rev_db/) {
3657 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
3658 }
3659 } else {
3660 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
3661 rename "$git_dir/$x", "$git_dir/svn/$x" or
3662 croak "$!: $x";
3663 }
3664 $migrated++;
3665 }
3666 command_close_pipe($fh, $ctx);
3667 print STDERR "Done migrating from a git-svn v1 layout\n";
3668 $migrated;
3669 }
3670
3671 sub read_old_urls {
3672 my ($l_map, $pfx, $path) = @_;
3673 my @dir;
3674 foreach (<$path/*>) {
3675 if (-r "$_/info/url") {
3676 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
3677 my $ref_id = $pfx . basename $_;
3678 my $url = ::file_to_s("$_/info/url");
3679 $l_map->{$ref_id} = $url;
3680 } elsif (-d $_) {
3681 push @dir, $_;
3682 }
3683 }
3684 foreach (@dir) {
3685 my $x = $_;
3686 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
3687 read_old_urls($l_map, $x, $_);
3688 }
3689 }
3690
3691 sub migrate_from_v2 {
3692 my @cfg = command(qw/config -l/);
3693 return if grep /^svn-remote\..+\.url=/, @cfg;
3694 my %l_map;
3695 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
3696 my $migrated = 0;
3697
3698 foreach my $ref_id (sort keys %l_map) {
3699 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
3700 if ($@) {
3701 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
3702 }
3703 $migrated++;
3704 }
3705 $migrated;
3706 }
3707
3708 sub minimize_connections {
3709 my $r = Git::SVN::read_all_remotes();
3710 my $new_urls = {};
3711 my $root_repos = {};
3712 foreach my $repo_id (keys %$r) {
3713 my $url = $r->{$repo_id}->{url} or next;
3714 my $fetch = $r->{$repo_id}->{fetch} or next;
3715 my $ra = Git::SVN::Ra->new($url);
3716
3717 # skip existing cases where we already connect to the root
3718 if (($ra->{url} eq $ra->{repos_root}) ||
3719 (Git::SVN::sanitize_remote_name($ra->{repos_root}) eq
3720 $repo_id)) {
3721 $root_repos->{$ra->{url}} = $repo_id;
3722 next;
3723 }
3724
3725 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
3726 my $root_path = $ra->{url};
3727 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
3728 foreach my $path (keys %$fetch) {
3729 my $ref_id = $fetch->{$path};
3730 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
3731
3732 # make sure we can read when connecting to
3733 # a higher level of a repository
3734 my ($last_rev, undef) = $gs->last_rev_commit;
3735 if (!defined $last_rev) {
3736 $last_rev = eval {
3737 $root_ra->get_latest_revnum;
3738 };
3739 next if $@;
3740 }
3741 my $new = $root_path;
3742 $new .= length $path ? "/$path" : '';
3743 eval {
3744 $root_ra->get_log([$new], $last_rev, $last_rev,
3745 0, 0, 1, sub { });
3746 };
3747 next if $@;
3748 $new_urls->{$ra->{repos_root}}->{$new} =
3749 { ref_id => $ref_id,
3750 old_repo_id => $repo_id,
3751 old_path => $path };
3752 }
3753 }
3754
3755 my @emptied;
3756 foreach my $url (keys %$new_urls) {
3757 # see if we can re-use an existing [svn-remote "repo_id"]
3758 # instead of creating a(n ugly) new section:
3759 my $repo_id = $root_repos->{$url} ||
3760 Git::SVN::sanitize_remote_name($url);
3761
3762 my $fetch = $new_urls->{$url};
3763 foreach my $path (keys %$fetch) {
3764 my $x = $fetch->{$path};
3765 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
3766 my $pfx = "svn-remote.$x->{old_repo_id}";
3767
3768 my $old_fetch = quotemeta("$x->{old_path}:".
3769 "refs/remotes/$x->{ref_id}");
3770 command_noisy(qw/config --unset/,
3771 "$pfx.fetch", '^'. $old_fetch . '$');
3772 delete $r->{$x->{old_repo_id}}->
3773 {fetch}->{$x->{old_path}};
3774 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
3775 command_noisy(qw/config --unset/,
3776 "$pfx.url");
3777 push @emptied, $x->{old_repo_id}
3778 }
3779 }
3780 }
3781 if (@emptied) {
3782 my $file = $ENV{GIT_CONFIG} || $ENV{GIT_CONFIG_LOCAL} ||
3783 "$ENV{GIT_DIR}/config";
3784 print STDERR <<EOF;
3785 The following [svn-remote] sections in your config file ($file) are empty
3786 and can be safely removed:
3787 EOF
3788 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
3789 }
3790 }
3791
3792 sub migration_check {
3793 migrate_from_v0();
3794 migrate_from_v1();
3795 migrate_from_v2();
3796 minimize_connections() if $_minimize;
3797 }
3798
3799 package Git::IndexInfo;
3800 use strict;
3801 use warnings;
3802 use Git qw/command_input_pipe command_close_pipe/;
3803
3804 sub new {
3805 my ($class) = @_;
3806 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
3807 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
3808 }
3809
3810 sub remove {
3811 my ($self, $path) = @_;
3812 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
3813 return ++$self->{nr};
3814 }
3815 undef;
3816 }
3817
3818 sub update {
3819 my ($self, $mode, $hash, $path) = @_;
3820 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
3821 return ++$self->{nr};
3822 }
3823 undef;
3824 }
3825
3826 sub DESTROY {
3827 my ($self) = @_;
3828 command_close_pipe($self->{gui}, $self->{ctx});
3829 }
3830
3831 package Git::SVN::GlobSpec;
3832 use strict;
3833 use warnings;
3834
3835 sub new {
3836 my ($class, $glob) = @_;
3837 my $re = $glob;
3838 $re =~ s!/+$!!g; # no need for trailing slashes
3839 my $nr = ($re =~ s!^(.*)\*(.*)$!\(\[^/\]+\)!g);
3840 my ($left, $right) = ($1, $2);
3841 if ($nr > 1) {
3842 die "Only one '*' wildcard expansion ",
3843 "is supported (got $nr): '$glob'\n";
3844 } elsif ($nr == 0) {
3845 die "One '*' is needed for glob: '$glob'\n";
3846 }
3847 $re = quotemeta($left) . $re . quotemeta($right);
3848 if (length $left && !($left =~ s!/+$!!g)) {
3849 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
3850 }
3851 if (length $right && !($right =~ s!^/+!!g)) {
3852 die "Missing leading '/' on right side of: '$glob' ($right)\n";
3853 }
3854 my $left_re = qr/^\/\Q$left\E(\/|$)/;
3855 bless { left => $left, right => $right, left_regex => $left_re,
3856 regex => qr/$re/, glob => $glob }, $class;
3857 }
3858
3859 sub full_path {
3860 my ($self, $path) = @_;
3861 return (length $self->{left} ? "$self->{left}/" : '') .
3862 $path . (length $self->{right} ? "/$self->{right}" : '');
3863 }
3864
3865 __END__
3866
3867 Data structures:
3868
3869
3870 $remotes = { # returned by read_all_remotes()
3871 'svn' => {
3872 # svn-remote.svn.url=https://svn.musicpd.org
3873 url => 'https://svn.musicpd.org',
3874 # svn-remote.svn.fetch=mpd/trunk:trunk
3875 fetch => {
3876 'mpd/trunk' => 'trunk',
3877 },
3878 # svn-remote.svn.tags=mpd/tags/*:tags/*
3879 tags => {
3880 path => {
3881 left => 'mpd/tags',
3882 right => '',
3883 regex => qr!mpd/tags/([^/]+)$!,
3884 glob => 'tags/*',
3885 },
3886 ref => {
3887 left => 'tags',
3888 right => '',
3889 regex => qr!tags/([^/]+)$!,
3890 glob => 'tags/*',
3891 },
3892 }
3893 }
3894 };
3895
3896 $log_entry hashref as returned by libsvn_log_entry()
3897 {
3898 log => 'whitespace-formatted log entry
3899 ', # trailing newline is preserved
3900 revision => '8', # integer
3901 date => '2004-02-24T17:01:44.108345Z', # commit date
3902 author => 'committer name'
3903 };
3904
3905
3906 # this is generated by generate_diff();
3907 @mods = array of diff-index line hashes, each element represents one line
3908 of diff-index output
3909
3910 diff-index line ($m hash)
3911 {
3912 mode_a => first column of diff-index output, no leading ':',
3913 mode_b => second column of diff-index output,
3914 sha1_b => sha1sum of the final blob,
3915 chg => change type [MCRADT],
3916 file_a => original file name of a file (iff chg is 'C' or 'R')
3917 file_b => new/current file name of a file (any chg)
3918 }
3919 ;
3920
3921 # retval of read_url_paths{,_all}();
3922 $l_map = {
3923 # repository root url
3924 'https://svn.musicpd.org' => {
3925 # repository path # GIT_SVN_ID
3926 'mpd/trunk' => 'trunk',
3927 'mpd/tags/0.11.5' => 'tags/0.11.5',
3928 },
3929 }
3930
3931 Notes:
3932 I don't trust the each() function on unless I created %hash myself
3933 because the internal iterator may not have started at base.
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