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Make xstrndup common
[alt-git.git] / git-svn.perl
blob6657e100fbbc3bd83e805b2440b1a7b61780c5f4
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/;
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, $_local,
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 'find-rev' => [ \&cmd_find_rev, "Translate between SVN revision numbers and tree-ish",
145 { } ],
146 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
147 { 'merge|m|M' => \$_merge,
148 'verbose|v' => \$_verbose,
149 'strategy|s=s' => \$_strategy,
150 'local|l' => \$_local,
151 'fetch-all|all' => \$_fetch_all,
152 %fc_opts } ],
153 'commit-diff' => [ \&cmd_commit_diff,
154 'Commit a diff between two trees',
155 { 'message|m=s' => \$_message,
156 'file|F=s' => \$_file,
157 'revision|r=s' => \$_revision,
158 %cmt_opts } ],
159 );
160
161 my $cmd;
162 for (my $i = 0; $i < @ARGV; $i++) {
163 if (defined $cmd{$ARGV[$i]}) {
164 $cmd = $ARGV[$i];
165 splice @ARGV, $i, 1;
166 last;
167 }
168 };
169
170 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
171
172 read_repo_config(\%opts);
173 Getopt::Long::Configure('pass_through') if ($cmd && $cmd eq 'log');
174 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
175 'minimize-connections' => \$Git::SVN::Migration::_minimize,
176 'id|i=s' => \$Git::SVN::default_ref_id,
177 'svn-remote|remote|R=s' => sub {
178 $Git::SVN::no_reuse_existing = 1;
179 $Git::SVN::default_repo_id = $_[1] });
180 exit 1 if (!$rv && $cmd && $cmd ne 'log');
181
182 usage(0) if $_help;
183 version() if $_version;
184 usage(1) unless defined $cmd;
185 load_authors() if $_authors;
186
187 # make sure we're always running
188 unless ($cmd =~ /(?:clone|init|multi-init)$/) {
189 unless (-d $ENV{GIT_DIR}) {
190 if ($git_dir_user_set) {
191 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
192 "but it is not a directory\n";
193 }
194 my $git_dir = delete $ENV{GIT_DIR};
195 chomp(my $cdup = command_oneline(qw/rev-parse --show-cdup/));
196 unless (length $cdup) {
197 die "Already at toplevel, but $git_dir ",
198 "not found '$cdup'\n";
199 }
200 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
201 unless (-d $git_dir) {
202 die "$git_dir still not found after going to ",
203 "'$cdup'\n";
204 }
205 $ENV{GIT_DIR} = $git_dir;
206 }
207 }
208 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
209 Git::SVN::Migration::migration_check();
210 }
211 Git::SVN::init_vars();
212 eval {
213 Git::SVN::verify_remotes_sanity();
214 $cmd{$cmd}->[0]->(@ARGV);
215 };
216 fatal $@ if $@;
217 post_fetch_checkout();
218 exit 0;
219
220 ####################### primary functions ######################
221 sub usage {
222 my $exit = shift || 0;
223 my $fd = $exit ? \*STDERR : \*STDOUT;
224 print $fd <<"";
225 git-svn - bidirectional operations between a single Subversion tree and git
226 Usage: $0 <command> [options] [arguments]\n
227
228 print $fd "Available commands:\n" unless $cmd;
229
230 foreach (sort keys %cmd) {
231 next if $cmd && $cmd ne $_;
232 next if /^multi-/; # don't show deprecated commands
233 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
234 foreach (keys %{$cmd{$_}->[2]}) {
235 # mixed-case options are for .git/config only
236 next if /[A-Z]/ && /^[a-z]+$/i;
237 # prints out arguments as they should be passed:
238 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
239 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
240 "--$_" : "-$_" }
241 split /\|/,$_)," $x\n";
242 }
243 }
244 print $fd <<"";
245 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
246 arbitrary identifier if you're tracking multiple SVN branches/repositories in
247 one git repository and want to keep them separate. See git-svn(1) for more
248 information.
249
250 exit $exit;
251 }
252
253 sub version {
254 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
255 exit 0;
256 }
257
258 sub do_git_init_db {
259 unless (-d $ENV{GIT_DIR}) {
260 my @init_db = ('init');
261 push @init_db, "--template=$_template" if defined $_template;
262 if (defined $_shared) {
263 if ($_shared =~ /[a-z]/) {
264 push @init_db, "--shared=$_shared";
265 } else {
266 push @init_db, "--shared";
267 }
268 }
269 command_noisy(@init_db);
270 }
271 my $set;
272 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
273 foreach my $i (keys %icv) {
274 die "'$set' and '$i' cannot both be set\n" if $set;
275 next unless defined $icv{$i};
276 command_noisy('config', "$pfx.$i", $icv{$i});
277 $set = $i;
278 }
279 }
280
281 sub init_subdir {
282 my $repo_path = shift or return;
283 mkpath([$repo_path]) unless -d $repo_path;
284 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
285 $ENV{GIT_DIR} = '.git';
286 }
287
288 sub cmd_clone {
289 my ($url, $path) = @_;
290 if (!defined $path &&
291 (defined $_trunk || defined $_branches || defined $_tags) &&
292 $url !~ m#^[a-z\+]+://#) {
293 $path = $url;
294 }
295 $path = basename($url) if !defined $path || !length $path;
296 cmd_init($url, $path);
297 Git::SVN::fetch_all($Git::SVN::default_repo_id);
298 }
299
300 sub cmd_init {
301 if (defined $_trunk || defined $_branches || defined $_tags) {
302 return cmd_multi_init(@_);
303 }
304 my $url = shift or die "SVN repository location required ",
305 "as a command-line argument\n";
306 init_subdir(@_);
307 do_git_init_db();
308
309 Git::SVN->init($url);
310 }
311
312 sub cmd_fetch {
313 if (grep /^\d+=./, @_) {
314 die "'<rev>=<commit>' fetch arguments are ",
315 "no longer supported.\n";
316 }
317 my ($remote) = @_;
318 if (@_ > 1) {
319 die "Usage: $0 fetch [--all] [svn-remote]\n";
320 }
321 $remote ||= $Git::SVN::default_repo_id;
322 if ($_fetch_all) {
323 cmd_multi_fetch();
324 } else {
325 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
326 }
327 }
328
329 sub cmd_set_tree {
330 my (@commits) = @_;
331 if ($_stdin || !@commits) {
332 print "Reading from stdin...\n";
333 @commits = ();
334 while (<STDIN>) {
335 if (/\b($sha1_short)\b/o) {
336 unshift @commits, $1;
337 }
338 }
339 }
340 my @revs;
341 foreach my $c (@commits) {
342 my @tmp = command('rev-parse',$c);
343 if (scalar @tmp == 1) {
344 push @revs, $tmp[0];
345 } elsif (scalar @tmp > 1) {
346 push @revs, reverse(command('rev-list',@tmp));
347 } else {
348 fatal "Failed to rev-parse $c\n";
349 }
350 }
351 my $gs = Git::SVN->new;
352 my ($r_last, $cmt_last) = $gs->last_rev_commit;
353 $gs->fetch;
354 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
355 fatal "There are new revisions that were fetched ",
356 "and need to be merged (or acknowledged) ",
357 "before committing.\nlast rev: $r_last\n",
358 " current: $gs->{last_rev}\n";
359 }
360 $gs->set_tree($_) foreach @revs;
361 print "Done committing ",scalar @revs," revisions to SVN\n";
362 }
363
364 sub cmd_dcommit {
365 my $head = shift;
366 $head ||= 'HEAD';
367 my @refs;
368 my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
369 unless ($gs) {
370 die "Unable to determine upstream SVN information from ",
371 "$head history\n";
372 }
373 my $c = $refs[-1];
374 my $last_rev;
375 foreach my $d (@refs) {
376 if (!verify_ref("$d~1")) {
377 fatal "Commit $d\n",
378 "has no parent commit, and therefore ",
379 "nothing to diff against.\n",
380 "You should be working from a repository ",
381 "originally created by git-svn\n";
382 }
383 unless (defined $last_rev) {
384 (undef, $last_rev, undef) = cmt_metadata("$d~1");
385 unless (defined $last_rev) {
386 fatal "Unable to extract revision information ",
387 "from commit $d~1\n";
388 }
389 }
390 if ($_dry_run) {
391 print "diff-tree $d~1 $d\n";
392 } else {
393 my %ed_opts = ( r => $last_rev,
394 log => get_commit_entry($d)->{log},
395 ra => Git::SVN::Ra->new($url),
396 tree_a => "$d~1",
397 tree_b => $d,
398 editor_cb => sub {
399 print "Committed r$_[0]\n";
400 $last_rev = $_[0]; },
401 svn_path => '');
402 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
403 print "No changes\n$d~1 == $d\n";
404 }
405 }
406 }
407 return if $_dry_run;
408 unless ($gs) {
409 warn "Could not determine fetch information for $url\n",
410 "Will not attempt to fetch and rebase commits.\n",
411 "This probably means you have useSvmProps and should\n",
412 "now resync your SVN::Mirror repository.\n";
413 return;
414 }
415 $_fetch_all ? $gs->fetch_all : $gs->fetch;
416 # we always want to rebase against the current HEAD, not any
417 # head that was passed to us
418 my @diff = command('diff-tree', 'HEAD', $gs->refname, '--');
419 my @finish;
420 if (@diff) {
421 @finish = rebase_cmd();
422 print STDERR "W: HEAD and ", $gs->refname, " differ, ",
423 "using @finish:\n", "@diff";
424 } else {
425 print "No changes between current HEAD and ",
426 $gs->refname, "\nResetting to the latest ",
427 $gs->refname, "\n";
428 @finish = qw/reset --mixed/;
429 }
430 command_noisy(@finish, $gs->refname);
431 }
432
433 sub cmd_find_rev {
434 my $revision_or_hash = shift;
435 my $result;
436 if ($revision_or_hash =~ /^r\d+$/) {
437 my $head = shift;
438 $head ||= 'HEAD';
439 my @refs;
440 my (undef, undef, undef, $gs) = working_head_info($head, \@refs);
441 unless ($gs) {
442 die "Unable to determine upstream SVN information from ",
443 "$head history\n";
444 }
445 my $desired_revision = substr($revision_or_hash, 1);
446 $result = $gs->rev_db_get($desired_revision);
447 } else {
448 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
449 $result = $rev;
450 }
451 print "$result\n" if $result;
452 }
453
454 sub cmd_rebase {
455 command_noisy(qw/update-index --refresh/);
456 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
457 unless ($gs) {
458 die "Unable to determine upstream SVN information from ",
459 "working tree history\n";
460 }
461 if (command(qw/diff-index HEAD --/)) {
462 print STDERR "Cannot rebase with uncommited changes:\n";
463 command_noisy('status');
464 exit 1;
465 }
466 unless ($_local) {
467 $_fetch_all ? $gs->fetch_all : $gs->fetch;
468 }
469 command_noisy(rebase_cmd(), $gs->refname);
470 }
471
472 sub cmd_show_ignore {
473 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
474 $gs ||= Git::SVN->new;
475 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
476 $gs->traverse_ignore(\*STDOUT, $gs->{path}, $r);
477 }
478
479 sub cmd_multi_init {
480 my $url = shift;
481 unless (defined $_trunk || defined $_branches || defined $_tags) {
482 usage(1);
483 }
484 $_prefix = '' unless defined $_prefix;
485 if (defined $url) {
486 $url =~ s#/+$##;
487 init_subdir(@_);
488 }
489 do_git_init_db();
490 if (defined $_trunk) {
491 my $trunk_ref = $_prefix . 'trunk';
492 # try both old-style and new-style lookups:
493 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
494 unless ($gs_trunk) {
495 my ($trunk_url, $trunk_path) =
496 complete_svn_url($url, $_trunk);
497 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
498 undef, $trunk_ref);
499 }
500 }
501 return unless defined $_branches || defined $_tags;
502 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
503 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
504 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
505 }
506
507 sub cmd_multi_fetch {
508 my $remotes = Git::SVN::read_all_remotes();
509 foreach my $repo_id (sort keys %$remotes) {
510 if ($remotes->{$repo_id}->{url}) {
511 Git::SVN::fetch_all($repo_id, $remotes);
512 }
513 }
514 }
515
516 # this command is special because it requires no metadata
517 sub cmd_commit_diff {
518 my ($ta, $tb, $url) = @_;
519 my $usage = "Usage: $0 commit-diff -r<revision> ".
520 "<tree-ish> <tree-ish> [<URL>]\n";
521 fatal($usage) if (!defined $ta || !defined $tb);
522 my $svn_path;
523 if (!defined $url) {
524 my $gs = eval { Git::SVN->new };
525 if (!$gs) {
526 fatal("Needed URL or usable git-svn --id in ",
527 "the command-line\n", $usage);
528 }
529 $url = $gs->{url};
530 $svn_path = $gs->{path};
531 }
532 unless (defined $_revision) {
533 fatal("-r|--revision is a required argument\n", $usage);
534 }
535 if (defined $_message && defined $_file) {
536 fatal("Both --message/-m and --file/-F specified ",
537 "for the commit message.\n",
538 "I have no idea what you mean\n");
539 }
540 if (defined $_file) {
541 $_message = file_to_s($_file);
542 } else {
543 $_message ||= get_commit_entry($tb)->{log};
544 }
545 my $ra ||= Git::SVN::Ra->new($url);
546 $svn_path ||= $ra->{svn_path};
547 my $r = $_revision;
548 if ($r eq 'HEAD') {
549 $r = $ra->get_latest_revnum;
550 } elsif ($r !~ /^\d+$/) {
551 die "revision argument: $r not understood by git-svn\n";
552 }
553 my %ed_opts = ( r => $r,
554 log => $_message,
555 ra => $ra,
556 tree_a => $ta,
557 tree_b => $tb,
558 editor_cb => sub { print "Committed r$_[0]\n" },
559 svn_path => $svn_path );
560 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
561 print "No changes\n$ta == $tb\n";
562 }
563 }
564
565 ########################### utility functions #########################
566
567 sub rebase_cmd {
568 my @cmd = qw/rebase/;
569 push @cmd, '-v' if $_verbose;
570 push @cmd, qw/--merge/ if $_merge;
571 push @cmd, "--strategy=$_strategy" if $_strategy;
572 @cmd;
573 }
574
575 sub post_fetch_checkout {
576 return if $_no_checkout;
577 my $gs = $Git::SVN::_head or return;
578 return if verify_ref('refs/heads/master^0');
579
580 my $valid_head = verify_ref('HEAD^0');
581 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
582 return if ($valid_head || !verify_ref('HEAD^0'));
583
584 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
585 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
586 return if -f $index;
587
588 chomp(my $bare = `git config --bool --get core.bare`);
589 return if $bare eq 'true';
590 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
591 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
592 print STDERR "Checked out HEAD:\n ",
593 $gs->full_url, " r", $gs->last_rev, "\n";
594 }
595
596 sub complete_svn_url {
597 my ($url, $path) = @_;
598 $path =~ s#/+$##;
599 if ($path !~ m#^[a-z\+]+://#) {
600 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
601 fatal("E: '$path' is not a complete URL ",
602 "and a separate URL is not specified\n");
603 }
604 return ($url, $path);
605 }
606 return ($path, '');
607 }
608
609 sub complete_url_ls_init {
610 my ($ra, $repo_path, $switch, $pfx) = @_;
611 unless ($repo_path) {
612 print STDERR "W: $switch not specified\n";
613 return;
614 }
615 $repo_path =~ s#/+$##;
616 if ($repo_path =~ m#^[a-z\+]+://#) {
617 $ra = Git::SVN::Ra->new($repo_path);
618 $repo_path = '';
619 } else {
620 $repo_path =~ s#^/+##;
621 unless ($ra) {
622 fatal("E: '$repo_path' is not a complete URL ",
623 "and a separate URL is not specified\n");
624 }
625 }
626 my $url = $ra->{url};
627 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
628 my $k = "svn-remote.$gs->{repo_id}.url";
629 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
630 if ($orig_url && ($orig_url ne $gs->{url})) {
631 die "$k already set: $orig_url\n",
632 "wanted to set to: $gs->{url}\n";
633 }
634 command_oneline('config', $k, $gs->{url}) unless $orig_url;
635 my $remote_path = "$ra->{svn_path}/$repo_path/*";
636 $remote_path =~ s#/+#/#g;
637 $remote_path =~ s#^/##g;
638 my ($n) = ($switch =~ /^--(\w+)/);
639 if (length $pfx && $pfx !~ m#/$#) {
640 die "--prefix='$pfx' must have a trailing slash '/'\n";
641 }
642 command_noisy('config', "svn-remote.$gs->{repo_id}.$n",
643 "$remote_path:refs/remotes/$pfx*");
644 }
645
646 sub verify_ref {
647 my ($ref) = @_;
648 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
649 { STDERR => 0 }); };
650 }
651
652 sub get_tree_from_treeish {
653 my ($treeish) = @_;
654 # $treeish can be a symbolic ref, too:
655 my $type = command_oneline(qw/cat-file -t/, $treeish);
656 my $expected;
657 while ($type eq 'tag') {
658 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
659 }
660 if ($type eq 'commit') {
661 $expected = (grep /^tree /, command(qw/cat-file commit/,
662 $treeish))[0];
663 ($expected) = ($expected =~ /^tree ($sha1)$/o);
664 die "Unable to get tree from $treeish\n" unless $expected;
665 } elsif ($type eq 'tree') {
666 $expected = $treeish;
667 } else {
668 die "$treeish is a $type, expected tree, tag or commit\n";
669 }
670 return $expected;
671 }
672
673 sub get_commit_entry {
674 my ($treeish) = shift;
675 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
676 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
677 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
678 open my $log_fh, '>', $commit_editmsg or croak $!;
679
680 my $type = command_oneline(qw/cat-file -t/, $treeish);
681 if ($type eq 'commit' || $type eq 'tag') {
682 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
683 $type, $treeish);
684 my $in_msg = 0;
685 while (<$msg_fh>) {
686 if (!$in_msg) {
687 $in_msg = 1 if (/^\s*$/);
688 } elsif (/^git-svn-id: /) {
689 # skip this for now, we regenerate the
690 # correct one on re-fetch anyways
691 # TODO: set *:merge properties or like...
692 } else {
693 print $log_fh $_ or croak $!;
694 }
695 }
696 command_close_pipe($msg_fh, $ctx);
697 }
698 close $log_fh or croak $!;
699
700 if ($_edit || ($type eq 'tree')) {
701 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
702 # TODO: strip out spaces, comments, like git-commit.sh
703 system($editor, $commit_editmsg);
704 }
705 rename $commit_editmsg, $commit_msg or croak $!;
706 open $log_fh, '<', $commit_msg or croak $!;
707 { local $/; chomp($log_entry{log} = <$log_fh>); }
708 close $log_fh or croak $!;
709 unlink $commit_msg;
710 \%log_entry;
711 }
712
713 sub s_to_file {
714 my ($str, $file, $mode) = @_;
715 open my $fd,'>',$file or croak $!;
716 print $fd $str,"\n" or croak $!;
717 close $fd or croak $!;
718 chmod ($mode &~ umask, $file) if (defined $mode);
719 }
720
721 sub file_to_s {
722 my $file = shift;
723 open my $fd,'<',$file or croak "$!: file: $file\n";
724 local $/;
725 my $ret = <$fd>;
726 close $fd or croak $!;
727 $ret =~ s/\s*$//s;
728 return $ret;
729 }
730
731 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
732 sub load_authors {
733 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
734 my $log = $cmd eq 'log';
735 while (<$authors>) {
736 chomp;
737 next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
738 my ($user, $name, $email) = ($1, $2, $3);
739 if ($log) {
740 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
741 } else {
742 $users{$user} = [$name, $email];
743 }
744 }
745 close $authors or croak $!;
746 }
747
748 # convert GetOpt::Long specs for use by git-config
749 sub read_repo_config {
750 return unless -d $ENV{GIT_DIR};
751 my $opts = shift;
752 my @config_only;
753 foreach my $o (keys %$opts) {
754 # if we have mixedCase and a long option-only, then
755 # it's a config-only variable that we don't need for
756 # the command-line.
757 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
758 my $v = $opts->{$o};
759 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
760 $key =~ s/-//g;
761 my $arg = 'git-config';
762 $arg .= ' --int' if ($o =~ /[:=]i$/);
763 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
764 if (ref $v eq 'ARRAY') {
765 chomp(my @tmp = `$arg --get-all svn.$key`);
766 @$v = @tmp if @tmp;
767 } else {
768 chomp(my $tmp = `$arg --get svn.$key`);
769 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
770 $$v = $tmp;
771 }
772 }
773 }
774 delete @$opts{@config_only} if @config_only;
775 }
776
777 sub extract_metadata {
778 my $id = shift or return (undef, undef, undef);
779 my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
780 \s([a-f\d\-]+)$/x);
781 if (!defined $rev || !$uuid || !$url) {
782 # some of the original repositories I made had
783 # identifiers like this:
784 ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
785 }
786 return ($url, $rev, $uuid);
787 }
788
789 sub cmt_metadata {
790 return extract_metadata((grep(/^git-svn-id: /,
791 command(qw/cat-file commit/, shift)))[-1]);
792 }
793
794 sub working_head_info {
795 my ($head, $refs) = @_;
796 my ($fh, $ctx) = command_output_pipe('rev-list', $head);
797 while (my $hash = <$fh>) {
798 chomp($hash);
799 my ($url, $rev, $uuid) = cmt_metadata($hash);
800 if (defined $url && defined $rev) {
801 if (my $gs = Git::SVN->find_by_url($url)) {
802 my $c = $gs->rev_db_get($rev);
803 if ($c && $c eq $hash) {
804 close $fh; # break the pipe
805 return ($url, $rev, $uuid, $gs);
806 }
807 }
808 }
809 unshift @$refs, $hash if $refs;
810 }
811 command_close_pipe($fh, $ctx);
812 (undef, undef, undef, undef);
813 }
814
815 package Git::SVN;
816 use strict;
817 use warnings;
818 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
819 $_repack $_repack_flags $_use_svm_props $_head
820 $_use_svnsync_props $no_reuse_existing/;
821 use Carp qw/croak/;
822 use File::Path qw/mkpath/;
823 use File::Copy qw/copy/;
824 use IPC::Open3;
825
826 my $_repack_nr;
827 # properties that we do not log:
828 my %SKIP_PROP;
829 BEGIN {
830 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
831 svn:special svn:executable
832 svn:entry:committed-rev
833 svn:entry:last-author
834 svn:entry:uuid
835 svn:entry:committed-date/;
836
837 # some options are read globally, but can be overridden locally
838 # per [svn-remote "..."] section. Command-line options will *NOT*
839 # override options set in an [svn-remote "..."] section
840 my $e;
841 foreach (qw/follow_parent no_metadata use_svm_props
842 use_svnsync_props/) {
843 my $key = $_;
844 $key =~ tr/_//d;
845 $e .= "sub $_ {
846 my (\$self) = \@_;
847 return \$self->{-$_} if exists \$self->{-$_};
848 my \$k = \"svn-remote.\$self->{repo_id}\.$key\";
849 eval { command_oneline(qw/config --get/, \$k) };
850 if (\$@) {
851 \$self->{-$_} = \$Git::SVN::_$_;
852 } else {
853 my \$v = command_oneline(qw/config --bool/,\$k);
854 \$self->{-$_} = \$v eq 'false' ? 0 : 1;
855 }
856 return \$self->{-$_} }\n";
857 }
858 $e .= "1;\n";
859 eval $e or die $@;
860 }
861
862 my %LOCKFILES;
863 END { unlink keys %LOCKFILES if %LOCKFILES }
864
865 sub resolve_local_globs {
866 my ($url, $fetch, $glob_spec) = @_;
867 return unless defined $glob_spec;
868 my $ref = $glob_spec->{ref};
869 my $path = $glob_spec->{path};
870 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
871 next unless m#^refs/remotes/$ref->{regex}$#;
872 my $p = $1;
873 my $pathname = $path->full_path($p);
874 my $refname = $ref->full_path($p);
875 if (my $existing = $fetch->{$pathname}) {
876 if ($existing ne $refname) {
877 die "Refspec conflict:\n",
878 "existing: refs/remotes/$existing\n",
879 " globbed: refs/remotes/$refname\n";
880 }
881 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
882 $u =~ s!^\Q$url\E(/|$)!! or die
883 "refs/remotes/$refname: '$url' not found in '$u'\n";
884 if ($pathname ne $u) {
885 warn "W: Refspec glob conflict ",
886 "(ref: refs/remotes/$refname):\n",
887 "expected path: $pathname\n",
888 " real path: $u\n",
889 "Continuing ahead with $u\n";
890 next;
891 }
892 } else {
893 $fetch->{$pathname} = $refname;
894 }
895 }
896 }
897
898 sub parse_revision_argument {
899 my ($base, $head) = @_;
900 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
901 return ($base, $head);
902 }
903 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
904 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
905 return ($head, $head) if ($::_revision eq 'HEAD');
906 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
907 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
908 die "revision argument: $::_revision not understood by git-svn\n";
909 }
910
911 sub fetch_all {
912 my ($repo_id, $remotes) = @_;
913 if (ref $repo_id) {
914 my $gs = $repo_id;
915 $repo_id = undef;
916 $repo_id = $gs->{repo_id};
917 }
918 $remotes ||= read_all_remotes();
919 my $remote = $remotes->{$repo_id} or
920 die "[svn-remote \"$repo_id\"] unknown\n";
921 my $fetch = $remote->{fetch};
922 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
923 my (@gs, @globs);
924 my $ra = Git::SVN::Ra->new($url);
925 my $uuid = $ra->get_uuid;
926 my $head = $ra->get_latest_revnum;
927 my $base = defined $fetch ? $head : 0;
928
929 # read the max revs for wildcard expansion (branches/*, tags/*)
930 foreach my $t (qw/branches tags/) {
931 defined $remote->{$t} or next;
932 push @globs, $remote->{$t};
933 my $max_rev = eval { tmp_config(qw/--int --get/,
934 "svn-remote.$repo_id.${t}-maxRev") };
935 if (defined $max_rev && ($max_rev < $base)) {
936 $base = $max_rev;
937 } elsif (!defined $max_rev) {
938 $base = 0;
939 }
940 }
941
942 if ($fetch) {
943 foreach my $p (sort keys %$fetch) {
944 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
945 my $lr = $gs->rev_db_max;
946 if (defined $lr) {
947 $base = $lr if ($lr < $base);
948 }
949 push @gs, $gs;
950 }
951 }
952
953 ($base, $head) = parse_revision_argument($base, $head);
954 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
955 }
956
957 sub read_all_remotes {
958 my $r = {};
959 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
960 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
961 $r->{$1}->{fetch}->{$2} = $3;
962 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
963 $r->{$1}->{url} = $2;
964 } elsif (m!^(.+)\.(branches|tags)=
965 (.*):refs/remotes/(.+)\s*$/!x) {
966 my ($p, $g) = ($3, $4);
967 my $rs = $r->{$1}->{$2} = {
968 t => $2,
969 remote => $1,
970 path => Git::SVN::GlobSpec->new($p),
971 ref => Git::SVN::GlobSpec->new($g) };
972 if (length($rs->{ref}->{right}) != 0) {
973 die "The '*' glob character must be the last ",
974 "character of '$g'\n";
975 }
976 }
977 }
978 $r;
979 }
980
981 sub init_vars {
982 if (defined $_repack) {
983 $_repack = 1000 if ($_repack <= 0);
984 $_repack_nr = $_repack;
985 $_repack_flags ||= '-d';
986 }
987 }
988
989 sub verify_remotes_sanity {
990 return unless -d $ENV{GIT_DIR};
991 my %seen;
992 foreach (command(qw/config -l/)) {
993 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
994 if ($seen{$1}) {
995 die "Remote ref refs/remote/$1 is tracked by",
996 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
997 "Please resolve this ambiguity in ",
998 "your git configuration file before ",
999 "continuing\n";
1000 }
1001 $seen{$1} = $_;
1002 }
1003 }
1004 }
1005
1006 # we allow more chars than remotes2config.sh...
1007 sub sanitize_remote_name {
1008 my ($name) = @_;
1009 $name =~ tr{A-Za-z0-9:,/+-}{.}c;
1010 $name;
1011 }
1012
1013 sub find_existing_remote {
1014 my ($url, $remotes) = @_;
1015 return undef if $no_reuse_existing;
1016 my $existing;
1017 foreach my $repo_id (keys %$remotes) {
1018 my $u = $remotes->{$repo_id}->{url} or next;
1019 next if $u ne $url;
1020 $existing = $repo_id;
1021 last;
1022 }
1023 $existing;
1024 }
1025
1026 sub init_remote_config {
1027 my ($self, $url, $no_write) = @_;
1028 $url =~ s!/+$!!; # strip trailing slash
1029 my $r = read_all_remotes();
1030 my $existing = find_existing_remote($url, $r);
1031 if ($existing) {
1032 unless ($no_write) {
1033 print STDERR "Using existing ",
1034 "[svn-remote \"$existing\"]\n";
1035 }
1036 $self->{repo_id} = $existing;
1037 } else {
1038 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1039 $existing = find_existing_remote($min_url, $r);
1040 if ($existing) {
1041 unless ($no_write) {
1042 print STDERR "Using existing ",
1043 "[svn-remote \"$existing\"]\n";
1044 }
1045 $self->{repo_id} = $existing;
1046 }
1047 if ($min_url ne $url) {
1048 unless ($no_write) {
1049 print STDERR "Using higher level of URL: ",
1050 "$url => $min_url\n";
1051 }
1052 my $old_path = $self->{path};
1053 $self->{path} = $url;
1054 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1055 if (length $old_path) {
1056 $self->{path} .= "/$old_path";
1057 }
1058 $url = $min_url;
1059 }
1060 }
1061 my $orig_url;
1062 if (!$existing) {
1063 # verify that we aren't overwriting anything:
1064 $orig_url = eval {
1065 command_oneline('config', '--get',
1066 "svn-remote.$self->{repo_id}.url")
1067 };
1068 if ($orig_url && ($orig_url ne $url)) {
1069 die "svn-remote.$self->{repo_id}.url already set: ",
1070 "$orig_url\nwanted to set to: $url\n";
1071 }
1072 }
1073 my ($xrepo_id, $xpath) = find_ref($self->refname);
1074 if (defined $xpath) {
1075 die "svn-remote.$xrepo_id.fetch already set to track ",
1076 "$xpath:refs/remotes/", $self->refname, "\n";
1077 }
1078 unless ($no_write) {
1079 command_noisy('config',
1080 "svn-remote.$self->{repo_id}.url", $url);
1081 command_noisy('config', '--add',
1082 "svn-remote.$self->{repo_id}.fetch",
1083 "$self->{path}:".$self->refname);
1084 }
1085 $self->{url} = $url;
1086 }
1087
1088 sub find_by_url { # repos_root and, path are optional
1089 my ($class, $full_url, $repos_root, $path) = @_;
1090
1091 return undef unless defined $full_url;
1092 remove_username($full_url);
1093 remove_username($repos_root) if defined $repos_root;
1094 my $remotes = read_all_remotes();
1095 if (defined $full_url && defined $repos_root && !defined $path) {
1096 $path = $full_url;
1097 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1098 }
1099 foreach my $repo_id (keys %$remotes) {
1100 my $u = $remotes->{$repo_id}->{url} or next;
1101 remove_username($u);
1102 next if defined $repos_root && $repos_root ne $u;
1103
1104 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1105 foreach (qw/branches tags/) {
1106 resolve_local_globs($u, $fetch,
1107 $remotes->{$repo_id}->{$_});
1108 }
1109 my $p = $path;
1110 unless (defined $p) {
1111 $p = $full_url;
1112 $p =~ s#^\Q$u\E(?:/|$)## or next;
1113 }
1114 foreach my $f (keys %$fetch) {
1115 next if $f ne $p;
1116 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1117 }
1118 }
1119 undef;
1120 }
1121
1122 sub init {
1123 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1124 my $self = _new($class, $repo_id, $ref_id, $path);
1125 if (defined $url) {
1126 $self->init_remote_config($url, $no_write);
1127 }
1128 $self;
1129 }
1130
1131 sub find_ref {
1132 my ($ref_id) = @_;
1133 foreach (command(qw/config -l/)) {
1134 next unless m!^svn-remote\.(.+)\.fetch=
1135 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1136 my ($repo_id, $path, $ref) = ($1, $2, $3);
1137 if ($ref eq $ref_id) {
1138 $path = '' if ($path =~ m#^\./?#);
1139 return ($repo_id, $path);
1140 }
1141 }
1142 (undef, undef, undef);
1143 }
1144
1145 sub new {
1146 my ($class, $ref_id, $repo_id, $path) = @_;
1147 if (defined $ref_id && !defined $repo_id && !defined $path) {
1148 ($repo_id, $path) = find_ref($ref_id);
1149 if (!defined $repo_id) {
1150 die "Could not find a \"svn-remote.*.fetch\" key ",
1151 "in the repository configuration matching: ",
1152 "refs/remotes/$ref_id\n";
1153 }
1154 }
1155 my $self = _new($class, $repo_id, $ref_id, $path);
1156 if (!defined $self->{path} || !length $self->{path}) {
1157 my $fetch = command_oneline('config', '--get',
1158 "svn-remote.$repo_id.fetch",
1159 ":refs/remotes/$ref_id\$") or
1160 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1161 "\":refs/remotes/$ref_id\$\" in config\n";
1162 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1163 }
1164 $self->{url} = command_oneline('config', '--get',
1165 "svn-remote.$repo_id.url") or
1166 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1167 $self->rebuild;
1168 $self;
1169 }
1170
1171 sub refname { "refs/remotes/$_[0]->{ref_id}" }
1172
1173 sub svm_uuid {
1174 my ($self) = @_;
1175 return $self->{svm}->{uuid} if $self->svm;
1176 $self->ra;
1177 unless ($self->{svm}) {
1178 die "SVM UUID not cached, and reading remotely failed\n";
1179 }
1180 $self->{svm}->{uuid};
1181 }
1182
1183 sub svm {
1184 my ($self) = @_;
1185 return $self->{svm} if $self->{svm};
1186 my $svm;
1187 # see if we have it in our config, first:
1188 eval {
1189 my $section = "svn-remote.$self->{repo_id}";
1190 $svm = {
1191 source => tmp_config('--get', "$section.svm-source"),
1192 uuid => tmp_config('--get', "$section.svm-uuid"),
1193 replace => tmp_config('--get', "$section.svm-replace"),
1194 }
1195 };
1196 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1197 $self->{svm} = $svm;
1198 }
1199 $self->{svm};
1200 }
1201
1202 sub _set_svm_vars {
1203 my ($self, $ra) = @_;
1204 return $ra if $self->svm;
1205
1206 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1207 "(svm:source, svm:uuid) ",
1208 "from the following URLs:\n" );
1209 sub read_svm_props {
1210 my ($self, $ra, $path, $r) = @_;
1211 my $props = ($ra->get_dir($path, $r))[2];
1212 my $src = $props->{'svm:source'};
1213 my $uuid = $props->{'svm:uuid'};
1214 return undef if (!$src || !$uuid);
1215
1216 chomp($src, $uuid);
1217
1218 $uuid =~ m{^[0-9a-f\-]{30,}$}
1219 or die "doesn't look right - svm:uuid is '$uuid'\n";
1220
1221 # the '!' is used to mark the repos_root!/relative/path
1222 $src =~ s{/?!/?}{/};
1223 $src =~ s{/+$}{}; # no trailing slashes please
1224 # username is of no interest
1225 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1226
1227 my $replace = $ra->{url};
1228 $replace .= "/$path" if length $path;
1229
1230 my $section = "svn-remote.$self->{repo_id}";
1231 tmp_config("$section.svm-source", $src);
1232 tmp_config("$section.svm-replace", $replace);
1233 tmp_config("$section.svm-uuid", $uuid);
1234 $self->{svm} = {
1235 source => $src,
1236 uuid => $uuid,
1237 replace => $replace
1238 };
1239 }
1240
1241 my $r = $ra->get_latest_revnum;
1242 my $path = $self->{path};
1243 my %tried;
1244 while (length $path) {
1245 unless ($tried{"$self->{url}/$path"}) {
1246 return $ra if $self->read_svm_props($ra, $path, $r);
1247 $tried{"$self->{url}/$path"} = 1;
1248 }
1249 $path =~ s#/?[^/]+$##;
1250 }
1251 die "Path: '$path' should be ''\n" if $path ne '';
1252 return $ra if $self->read_svm_props($ra, $path, $r);
1253 $tried{"$self->{url}/$path"} = 1;
1254
1255 if ($ra->{repos_root} eq $self->{url}) {
1256 die @err, (map { " $_\n" } keys %tried), "\n";
1257 }
1258
1259 # nope, make sure we're connected to the repository root:
1260 my $ok;
1261 my @tried_b;
1262 $path = $ra->{svn_path};
1263 $ra = Git::SVN::Ra->new($ra->{repos_root});
1264 while (length $path) {
1265 unless ($tried{"$ra->{url}/$path"}) {
1266 $ok = $self->read_svm_props($ra, $path, $r);
1267 last if $ok;
1268 $tried{"$ra->{url}/$path"} = 1;
1269 }
1270 $path =~ s#/?[^/]+$##;
1271 }
1272 die "Path: '$path' should be ''\n" if $path ne '';
1273 $ok ||= $self->read_svm_props($ra, $path, $r);
1274 $tried{"$ra->{url}/$path"} = 1;
1275 if (!$ok) {
1276 die @err, (map { " $_\n" } keys %tried), "\n";
1277 }
1278 Git::SVN::Ra->new($self->{url});
1279 }
1280
1281 sub svnsync {
1282 my ($self) = @_;
1283 return $self->{svnsync} if $self->{svnsync};
1284
1285 if ($self->no_metadata) {
1286 die "Can't have both 'noMetadata' and ",
1287 "'useSvnsyncProps' options set!\n";
1288 }
1289 if ($self->rewrite_root) {
1290 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1291 "options set!\n";
1292 }
1293
1294 my $svnsync;
1295 # see if we have it in our config, first:
1296 eval {
1297 my $section = "svn-remote.$self->{repo_id}";
1298 $svnsync = {
1299 url => tmp_config('--get', "$section.svnsync-url"),
1300 uuid => tmp_config('--get', "$section.svnsync-uuid"),
1301 }
1302 };
1303 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1304 return $self->{svnsync} = $svnsync;
1305 }
1306
1307 my $err = "useSvnsyncProps set, but failed to read " .
1308 "svnsync property: svn:sync-from-";
1309 my $rp = $self->ra->rev_proplist(0);
1310
1311 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1312 $url =~ m{^[a-z\+]+://} or
1313 die "doesn't look right - svn:sync-from-url is '$url'\n";
1314
1315 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1316 $uuid =~ m{^[0-9a-f\-]{30,}$} or
1317 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1318
1319 my $section = "svn-remote.$self->{repo_id}";
1320 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1321 tmp_config('--add', "$section.svnsync-url", $url);
1322 return $self->{svnsync} = { url => $url, uuid => $uuid };
1323 }
1324
1325 # this allows us to memoize our SVN::Ra UUID locally and avoid a
1326 # remote lookup (useful for 'git svn log').
1327 sub ra_uuid {
1328 my ($self) = @_;
1329 unless ($self->{ra_uuid}) {
1330 my $key = "svn-remote.$self->{repo_id}.uuid";
1331 my $uuid = eval { tmp_config('--get', $key) };
1332 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1333 $self->{ra_uuid} = $uuid;
1334 } else {
1335 die "ra_uuid called without URL\n" unless $self->{url};
1336 $self->{ra_uuid} = $self->ra->get_uuid;
1337 tmp_config('--add', $key, $self->{ra_uuid});
1338 }
1339 }
1340 $self->{ra_uuid};
1341 }
1342
1343 sub ra {
1344 my ($self) = shift;
1345 my $ra = Git::SVN::Ra->new($self->{url});
1346 if ($self->use_svm_props && !$self->{svm}) {
1347 if ($self->no_metadata) {
1348 die "Can't have both 'noMetadata' and ",
1349 "'useSvmProps' options set!\n";
1350 } elsif ($self->use_svnsync_props) {
1351 die "Can't have both 'useSvnsyncProps' and ",
1352 "'useSvmProps' options set!\n";
1353 }
1354 $ra = $self->_set_svm_vars($ra);
1355 $self->{-want_revprops} = 1;
1356 }
1357 $ra;
1358 }
1359
1360 sub rel_path {
1361 my ($self) = @_;
1362 my $repos_root = $self->ra->{repos_root};
1363 return $self->{path} if ($self->{url} eq $repos_root);
1364 my $url = $self->{url} .
1365 (length $self->{path} ? "/$self->{path}" : $self->{path});
1366 $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
1367 $url;
1368 }
1369
1370 sub traverse_ignore {
1371 my ($self, $fh, $path, $r) = @_;
1372 $path =~ s#^/+##g;
1373 my $ra = $self->ra;
1374 my ($dirent, undef, $props) = $ra->get_dir($path, $r);
1375 my $p = $path;
1376 $p =~ s#^\Q$self->{path}\E(/|$)##;
1377 print $fh length $p ? "\n# $p\n" : "\n# /\n";
1378 if (my $s = $props->{'svn:ignore'}) {
1379 $s =~ s/[\r\n]+/\n/g;
1380 chomp $s;
1381 if (length $p == 0) {
1382 $s =~ s#\n#\n/$p#g;
1383 print $fh "/$s\n";
1384 } else {
1385 $s =~ s#\n#\n/$p/#g;
1386 print $fh "/$p/$s\n";
1387 }
1388 }
1389 foreach (sort keys %$dirent) {
1390 next if $dirent->{$_}->kind != $SVN::Node::dir;
1391 $self->traverse_ignore($fh, "$path/$_", $r);
1392 }
1393 }
1394
1395 sub last_rev { ($_[0]->last_rev_commit)[0] }
1396 sub last_commit { ($_[0]->last_rev_commit)[1] }
1397
1398 # returns the newest SVN revision number and newest commit SHA1
1399 sub last_rev_commit {
1400 my ($self) = @_;
1401 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1402 return ($self->{last_rev}, $self->{last_commit});
1403 }
1404 my $c = ::verify_ref($self->refname.'^0');
1405 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1406 my $rev = (::cmt_metadata($c))[1];
1407 if (defined $rev) {
1408 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1409 return ($rev, $c);
1410 }
1411 }
1412 my $db_path = $self->db_path;
1413 unless (-e $db_path) {
1414 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
1415 return (undef, undef);
1416 }
1417 my $offset = -41; # from tail
1418 my $rl;
1419 open my $fh, '<', $db_path or croak "$db_path not readable: $!\n";
1420 sysseek($fh, $offset, 2); # don't care for errors
1421 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1422 chomp $rl;
1423 while (('0' x40) eq $rl && sysseek($fh, 0, 1) != 0) {
1424 $offset -= 41;
1425 sysseek($fh, $offset, 2); # don't care for errors
1426 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1427 chomp $rl;
1428 }
1429 if ($c && $c ne $rl) {
1430 die "$db_path and ", $self->refname,
1431 " inconsistent!:\n$c != $rl\n";
1432 }
1433 my $rev = sysseek($fh, 0, 1) or croak $!;
1434 $rev = ($rev - 41) / 41;
1435 close $fh or croak $!;
1436 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1437 return ($rev, $c);
1438 }
1439
1440 sub get_fetch_range {
1441 my ($self, $min, $max) = @_;
1442 $max ||= $self->ra->get_latest_revnum;
1443 $min ||= $self->rev_db_max;
1444 (++$min, $max);
1445 }
1446
1447 sub tmp_config {
1448 my (@args) = @_;
1449 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
1450 my $config = "$ENV{GIT_DIR}/svn/.metadata";
1451 if (-e $old_def_config && ! -e $config) {
1452 rename $old_def_config, $config or
1453 die "Failed rename $old_def_config => $config: $!\n";
1454 }
1455 my $old_config = $ENV{GIT_CONFIG};
1456 $ENV{GIT_CONFIG} = $config;
1457 $@ = undef;
1458 my @ret = eval {
1459 unless (-f $config) {
1460 mkfile($config);
1461 open my $fh, '>', $config or
1462 die "Can't open $config: $!\n";
1463 print $fh "; This file is used internally by ",
1464 "git-svn\n" or die
1465 "Couldn't write to $config: $!\n";
1466 print $fh "; You should not have to edit it\n" or
1467 die "Couldn't write to $config: $!\n";
1468 close $fh or die "Couldn't close $config: $!\n";
1469 }
1470 command('config', @args);
1471 };
1472 my $err = $@;
1473 if (defined $old_config) {
1474 $ENV{GIT_CONFIG} = $old_config;
1475 } else {
1476 delete $ENV{GIT_CONFIG};
1477 }
1478 die $err if $err;
1479 wantarray ? @ret : $ret[0];
1480 }
1481
1482 sub tmp_index_do {
1483 my ($self, $sub) = @_;
1484 my $old_index = $ENV{GIT_INDEX_FILE};
1485 $ENV{GIT_INDEX_FILE} = $self->{index};
1486 $@ = undef;
1487 my @ret = eval {
1488 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
1489 mkpath([$dir]) unless -d $dir;
1490 &$sub;
1491 };
1492 my $err = $@;
1493 if (defined $old_index) {
1494 $ENV{GIT_INDEX_FILE} = $old_index;
1495 } else {
1496 delete $ENV{GIT_INDEX_FILE};
1497 }
1498 die $err if $err;
1499 wantarray ? @ret : $ret[0];
1500 }
1501
1502 sub assert_index_clean {
1503 my ($self, $treeish) = @_;
1504
1505 $self->tmp_index_do(sub {
1506 command_noisy('read-tree', $treeish) unless -e $self->{index};
1507 my $x = command_oneline('write-tree');
1508 my ($y) = (command(qw/cat-file commit/, $treeish) =~
1509 /^tree ($::sha1)/mo);
1510 return if $y eq $x;
1511
1512 warn "Index mismatch: $y != $x\nrereading $treeish\n";
1513 unlink $self->{index} or die "unlink $self->{index}: $!\n";
1514 command_noisy('read-tree', $treeish);
1515 $x = command_oneline('write-tree');
1516 if ($y ne $x) {
1517 ::fatal "trees ($treeish) $y != $x\n",
1518 "Something is seriously wrong...\n";
1519 }
1520 });
1521 }
1522
1523 sub get_commit_parents {
1524 my ($self, $log_entry) = @_;
1525 my (%seen, @ret, @tmp);
1526 # legacy support for 'set-tree'; this is only used by set_tree_cb:
1527 if (my $ip = $self->{inject_parents}) {
1528 if (my $commit = delete $ip->{$log_entry->{revision}}) {
1529 push @tmp, $commit;
1530 }
1531 }
1532 if (my $cur = ::verify_ref($self->refname.'^0')) {
1533 push @tmp, $cur;
1534 }
1535 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
1536 while (my $p = shift @tmp) {
1537 next if $seen{$p};
1538 $seen{$p} = 1;
1539 push @ret, $p;
1540 # MAXPARENT is defined to 16 in commit-tree.c:
1541 last if @ret >= 16;
1542 }
1543 if (@tmp) {
1544 die "r$log_entry->{revision}: No room for parents:\n\t",
1545 join("\n\t", @tmp), "\n";
1546 }
1547 @ret;
1548 }
1549
1550 sub rewrite_root {
1551 my ($self) = @_;
1552 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
1553 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
1554 my $rwr = eval { command_oneline(qw/config --get/, $k) };
1555 if ($rwr) {
1556 $rwr =~ s#/+$##;
1557 if ($rwr !~ m#^[a-z\+]+://#) {
1558 die "$rwr is not a valid URL (key: $k)\n";
1559 }
1560 }
1561 $self->{-rewrite_root} = $rwr;
1562 }
1563
1564 sub metadata_url {
1565 my ($self) = @_;
1566 ($self->rewrite_root || $self->{url}) .
1567 (length $self->{path} ? '/' . $self->{path} : '');
1568 }
1569
1570 sub full_url {
1571 my ($self) = @_;
1572 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
1573 }
1574
1575 sub do_git_commit {
1576 my ($self, $log_entry) = @_;
1577 my $lr = $self->last_rev;
1578 if (defined $lr && $lr >= $log_entry->{revision}) {
1579 die "Last fetched revision of ", $self->refname,
1580 " was r$lr, but we are about to fetch: ",
1581 "r$log_entry->{revision}!\n";
1582 }
1583 if (my $c = $self->rev_db_get($log_entry->{revision})) {
1584 croak "$log_entry->{revision} = $c already exists! ",
1585 "Why are we refetching it?\n";
1586 }
1587 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $log_entry->{name};
1588 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} =
1589 $log_entry->{email};
1590 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
1591
1592 my $tree = $log_entry->{tree};
1593 if (!defined $tree) {
1594 $tree = $self->tmp_index_do(sub {
1595 command_oneline('write-tree') });
1596 }
1597 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
1598
1599 my @exec = ('git-commit-tree', $tree);
1600 foreach ($self->get_commit_parents($log_entry)) {
1601 push @exec, '-p', $_;
1602 }
1603 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1604 or croak $!;
1605 print $msg_fh $log_entry->{log} or croak $!;
1606 unless ($self->no_metadata) {
1607 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
1608 or croak $!;
1609 }
1610 $msg_fh->flush == 0 or croak $!;
1611 close $msg_fh or croak $!;
1612 chomp(my $commit = do { local $/; <$out_fh> });
1613 close $out_fh or croak $!;
1614 waitpid $pid, 0;
1615 croak $? if $?;
1616 if ($commit !~ /^$::sha1$/o) {
1617 die "Failed to commit, invalid sha1: $commit\n";
1618 }
1619
1620 $self->rev_db_set($log_entry->{revision}, $commit, 1);
1621
1622 $self->{last_rev} = $log_entry->{revision};
1623 $self->{last_commit} = $commit;
1624 print "r$log_entry->{revision}";
1625 if (defined $log_entry->{svm_revision}) {
1626 print " (\@$log_entry->{svm_revision})";
1627 $self->rev_db_set($log_entry->{svm_revision}, $commit,
1628 0, $self->svm_uuid);
1629 }
1630 print " = $commit ($self->{ref_id})\n";
1631 if (defined $_repack && (--$_repack_nr == 0)) {
1632 $_repack_nr = $_repack;
1633 # repack doesn't use any arguments with spaces in them, does it?
1634 print "Running git repack $_repack_flags ...\n";
1635 command_noisy('repack', split(/\s+/, $_repack_flags));
1636 print "Done repacking\n";
1637 }
1638 return $commit;
1639 }
1640
1641 sub match_paths {
1642 my ($self, $paths, $r) = @_;
1643 return 1 if $self->{path} eq '';
1644 if (my $path = $paths->{"/$self->{path}"}) {
1645 return ($path->{action} eq 'D') ? 0 : 1;
1646 }
1647 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
1648 if (grep /$self->{path_regex}/, keys %$paths) {
1649 return 1;
1650 }
1651 my $c = '';
1652 foreach (split m#/#, $self->{path}) {
1653 $c .= "/$_";
1654 next unless ($paths->{$c} &&
1655 ($paths->{$c}->{action} =~ /^[AR]$/));
1656 if ($self->ra->check_path($self->{path}, $r) ==
1657 $SVN::Node::dir) {
1658 return 1;
1659 }
1660 }
1661 return 0;
1662 }
1663
1664 sub find_parent_branch {
1665 my ($self, $paths, $rev) = @_;
1666 return undef unless $self->follow_parent;
1667 unless (defined $paths) {
1668 my $err_handler = $SVN::Error::handler;
1669 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
1670 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
1671 $paths =
1672 Git::SVN::Ra::dup_changed_paths($_[0]) });
1673 $SVN::Error::handler = $err_handler;
1674 }
1675 return undef unless defined $paths;
1676
1677 # look for a parent from another branch:
1678 my @b_path_components = split m#/#, $self->rel_path;
1679 my @a_path_components;
1680 my $i;
1681 while (@b_path_components) {
1682 $i = $paths->{'/'.join('/', @b_path_components)};
1683 last if $i && defined $i->{copyfrom_path};
1684 unshift(@a_path_components, pop(@b_path_components));
1685 }
1686 return undef unless defined $i && defined $i->{copyfrom_path};
1687 my $branch_from = $i->{copyfrom_path};
1688 if (@a_path_components) {
1689 print STDERR "branch_from: $branch_from => ";
1690 $branch_from .= '/'.join('/', @a_path_components);
1691 print STDERR $branch_from, "\n";
1692 }
1693 my $r = $i->{copyfrom_rev};
1694 my $repos_root = $self->ra->{repos_root};
1695 my $url = $self->ra->{url};
1696 my $new_url = $repos_root . $branch_from;
1697 print STDERR "Found possible branch point: ",
1698 "$new_url => ", $self->full_url, ", $r\n";
1699 $branch_from =~ s#^/##;
1700 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
1701 unless ($gs) {
1702 my $ref_id = $self->{ref_id};
1703 $ref_id =~ s/\@\d+$//;
1704 $ref_id .= "\@$r";
1705 # just grow a tail if we're not unique enough :x
1706 $ref_id .= '-' while find_ref($ref_id);
1707 print STDERR "Initializing parent: $ref_id\n";
1708 $gs = Git::SVN->init($new_url, '', $ref_id, $ref_id, 1);
1709 }
1710 my ($r0, $parent) = $gs->find_rev_before($r, 1);
1711 if (!defined $r0 || !defined $parent) {
1712 my ($base, $head) = parse_revision_argument(0, $r);
1713 if ($base <= $r) {
1714 $gs->fetch($base, $r);
1715 }
1716 ($r0, $parent) = $gs->last_rev_commit;
1717 }
1718 if (defined $r0 && defined $parent) {
1719 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
1720 my $ed;
1721 if ($self->ra->can_do_switch) {
1722 $self->assert_index_clean($parent);
1723 print STDERR "Following parent with do_switch\n";
1724 # do_switch works with svn/trunk >= r22312, but that
1725 # is not included with SVN 1.4.3 (the latest version
1726 # at the moment), so we can't rely on it
1727 $self->{last_commit} = $parent;
1728 $ed = SVN::Git::Fetcher->new($self);
1729 $gs->ra->gs_do_switch($r0, $rev, $gs,
1730 $self->full_url, $ed)
1731 or die "SVN connection failed somewhere...\n";
1732 } else {
1733 print STDERR "Following parent with do_update\n";
1734 $ed = SVN::Git::Fetcher->new($self);
1735 $self->ra->gs_do_update($rev, $rev, $self, $ed)
1736 or die "SVN connection failed somewhere...\n";
1737 }
1738 print STDERR "Successfully followed parent\n";
1739 return $self->make_log_entry($rev, [$parent], $ed);
1740 }
1741 return undef;
1742 }
1743
1744 sub do_fetch {
1745 my ($self, $paths, $rev) = @_;
1746 my $ed;
1747 my ($last_rev, @parents);
1748 if (my $lc = $self->last_commit) {
1749 # we can have a branch that was deleted, then re-added
1750 # under the same name but copied from another path, in
1751 # which case we'll have multiple parents (we don't
1752 # want to break the original ref, nor lose copypath info):
1753 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1754 push @{$log_entry->{parents}}, $lc;
1755 return $log_entry;
1756 }
1757 $ed = SVN::Git::Fetcher->new($self);
1758 $last_rev = $self->{last_rev};
1759 $ed->{c} = $lc;
1760 @parents = ($lc);
1761 } else {
1762 $last_rev = $rev;
1763 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1764 return $log_entry;
1765 }
1766 $ed = SVN::Git::Fetcher->new($self);
1767 }
1768 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
1769 die "SVN connection failed somewhere...\n";
1770 }
1771 $self->make_log_entry($rev, \@parents, $ed);
1772 }
1773
1774 sub get_untracked {
1775 my ($self, $ed) = @_;
1776 my @out;
1777 my $h = $ed->{empty};
1778 foreach (sort keys %$h) {
1779 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
1780 push @out, " $act: " . uri_encode($_);
1781 warn "W: $act: $_\n";
1782 }
1783 foreach my $t (qw/dir_prop file_prop/) {
1784 $h = $ed->{$t} or next;
1785 foreach my $path (sort keys %$h) {
1786 my $ppath = $path eq '' ? '.' : $path;
1787 foreach my $prop (sort keys %{$h->{$path}}) {
1788 next if $SKIP_PROP{$prop};
1789 my $v = $h->{$path}->{$prop};
1790 my $t_ppath_prop = "$t: " .
1791 uri_encode($ppath) . ' ' .
1792 uri_encode($prop);
1793 if (defined $v) {
1794 push @out, " +$t_ppath_prop " .
1795 uri_encode($v);
1796 } else {
1797 push @out, " -$t_ppath_prop";
1798 }
1799 }
1800 }
1801 }
1802 foreach my $t (qw/absent_file absent_directory/) {
1803 $h = $ed->{$t} or next;
1804 foreach my $parent (sort keys %$h) {
1805 foreach my $path (sort @{$h->{$parent}}) {
1806 push @out, " $t: " .
1807 uri_encode("$parent/$path");
1808 warn "W: $t: $parent/$path ",
1809 "Insufficient permissions?\n";
1810 }
1811 }
1812 }
1813 \@out;
1814 }
1815
1816 sub parse_svn_date {
1817 my $date = shift || return '+0000 1970-01-01 00:00:00';
1818 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
1819 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
1820 croak "Unable to parse date: $date\n";
1821 "+0000 $Y-$m-$d $H:$M:$S";
1822 }
1823
1824 sub check_author {
1825 my ($author) = @_;
1826 if (!defined $author || length $author == 0) {
1827 $author = '(no author)';
1828 }
1829 if (defined $::_authors && ! defined $::users{$author}) {
1830 die "Author: $author not defined in $::_authors file\n";
1831 }
1832 $author;
1833 }
1834
1835 sub make_log_entry {
1836 my ($self, $rev, $parents, $ed) = @_;
1837 my $untracked = $self->get_untracked($ed);
1838
1839 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
1840 print $un "r$rev\n" or croak $!;
1841 print $un $_, "\n" foreach @$untracked;
1842 my %log_entry = ( parents => $parents || [], revision => $rev,
1843 log => '');
1844
1845 my $headrev;
1846 my $logged = delete $self->{logged_rev_props};
1847 if (!$logged || $self->{-want_revprops}) {
1848 my $rp = $self->ra->rev_proplist($rev);
1849 foreach (sort keys %$rp) {
1850 my $v = $rp->{$_};
1851 if (/^svn:(author|date|log)$/) {
1852 $log_entry{$1} = $v;
1853 } elsif ($_ eq 'svm:headrev') {
1854 $headrev = $v;
1855 } else {
1856 print $un " rev_prop: ", uri_encode($_), ' ',
1857 uri_encode($v), "\n";
1858 }
1859 }
1860 } else {
1861 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
1862 }
1863 close $un or croak $!;
1864
1865 $log_entry{date} = parse_svn_date($log_entry{date});
1866 $log_entry{log} .= "\n";
1867 my $author = $log_entry{author} = check_author($log_entry{author});
1868 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
1869 : ($author, undef);
1870 if (defined $headrev && $self->use_svm_props) {
1871 if ($self->rewrite_root) {
1872 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
1873 "options set!\n";
1874 }
1875 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
1876 # we don't want "SVM: initializing mirror for junk" ...
1877 return undef if $r == 0;
1878 my $svm = $self->svm;
1879 if ($uuid ne $svm->{uuid}) {
1880 die "UUID mismatch on SVM path:\n",
1881 "expected: $svm->{uuid}\n",
1882 " got: $uuid\n";
1883 }
1884 my $full_url = $self->full_url;
1885 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
1886 die "Failed to replace '$svm->{replace}' with ",
1887 "'$svm->{source}' in $full_url\n";
1888 # throw away username for storing in records
1889 remove_username($full_url);
1890 $log_entry{metadata} = "$full_url\@$r $uuid";
1891 $log_entry{svm_revision} = $r;
1892 $email ||= "$author\@$uuid"
1893 } elsif ($self->use_svnsync_props) {
1894 my $full_url = $self->svnsync->{url};
1895 $full_url .= "/$self->{path}" if length $self->{path};
1896 remove_username($full_url);
1897 my $uuid = $self->svnsync->{uuid};
1898 $log_entry{metadata} = "$full_url\@$rev $uuid";
1899 $email ||= "$author\@$uuid"
1900 } else {
1901 my $url = $self->metadata_url;
1902 remove_username($url);
1903 $log_entry{metadata} = "$url\@$rev " .
1904 $self->ra->get_uuid;
1905 $email ||= "$author\@" . $self->ra->get_uuid;
1906 }
1907 $log_entry{name} = $name;
1908 $log_entry{email} = $email;
1909 \%log_entry;
1910 }
1911
1912 sub fetch {
1913 my ($self, $min_rev, $max_rev, @parents) = @_;
1914 my ($last_rev, $last_commit) = $self->last_rev_commit;
1915 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
1916 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
1917 }
1918
1919 sub set_tree_cb {
1920 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
1921 $self->{inject_parents} = { $rev => $tree };
1922 $self->fetch(undef, undef);
1923 }
1924
1925 sub set_tree {
1926 my ($self, $tree) = (shift, shift);
1927 my $log_entry = ::get_commit_entry($tree);
1928 unless ($self->{last_rev}) {
1929 fatal("Must have an existing revision to commit\n");
1930 }
1931 my %ed_opts = ( r => $self->{last_rev},
1932 log => $log_entry->{log},
1933 ra => $self->ra,
1934 tree_a => $self->{last_commit},
1935 tree_b => $tree,
1936 editor_cb => sub {
1937 $self->set_tree_cb($log_entry, $tree, @_) },
1938 svn_path => $self->{path} );
1939 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
1940 print "No changes\nr$self->{last_rev} = $tree\n";
1941 }
1942 }
1943
1944 sub rebuild {
1945 my ($self) = @_;
1946 my $db_path = $self->db_path;
1947 return if (-e $db_path && ! -z $db_path);
1948 return unless ::verify_ref($self->refname.'^0');
1949 if (-f $self->{db_root}) {
1950 rename $self->{db_root}, $db_path or die
1951 "rename $self->{db_root} => $db_path failed: $!\n";
1952 my ($dir, $base) = ($db_path =~ m#^(.*?)/?([^/]+)$#);
1953 symlink $base, $self->{db_root} or die
1954 "symlink $base => $self->{db_root} failed: $!\n";
1955 return;
1956 }
1957 print "Rebuilding $db_path ...\n";
1958 my ($rev_list, $ctx) = command_output_pipe("rev-list", $self->refname);
1959 my $latest;
1960 my $full_url = $self->full_url;
1961 remove_username($full_url);
1962 my $svn_uuid;
1963 while (<$rev_list>) {
1964 chomp;
1965 my $c = $_;
1966 die "Non-SHA1: $c\n" unless $c =~ /^$::sha1$/o;
1967 my ($url, $rev, $uuid) = ::cmt_metadata($c);
1968 remove_username($url);
1969
1970 # ignore merges (from set-tree)
1971 next if (!defined $rev || !$uuid);
1972
1973 # if we merged or otherwise started elsewhere, this is
1974 # how we break out of it
1975 if ((defined $svn_uuid && ($uuid ne $svn_uuid)) ||
1976 ($full_url && $url && ($url ne $full_url))) {
1977 next;
1978 }
1979 $latest ||= $rev;
1980 $svn_uuid ||= $uuid;
1981
1982 $self->rev_db_set($rev, $c);
1983 print "r$rev = $c\n";
1984 }
1985 command_close_pipe($rev_list, $ctx);
1986 print "Done rebuilding $db_path\n";
1987 }
1988
1989 # rev_db:
1990 # Tie::File seems to be prone to offset errors if revisions get sparse,
1991 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
1992 # one of my favorite modules is out :< Next up would be one of the DBM
1993 # modules, but I'm not sure which is most portable... So I'll just
1994 # go with something that's plain-text, but still capable of
1995 # being randomly accessed. So here's my ultra-simple fixed-width
1996 # database. All records are 40 characters + "\n", so it's easy to seek
1997 # to a revision: (41 * rev) is the byte offset.
1998 # A record of 40 0s denotes an empty revision.
1999 # And yes, it's still pretty fast (faster than Tie::File).
2000 # These files are disposable unless noMetadata or useSvmProps is set
2001
2002 sub _rev_db_set {
2003 my ($fh, $rev, $commit) = @_;
2004 my $offset = $rev * 41;
2005 # assume that append is the common case:
2006 seek $fh, 0, 2 or croak $!;
2007 my $pos = tell $fh;
2008 if ($pos < $offset) {
2009 for (1 .. (($offset - $pos) / 41)) {
2010 print $fh (('0' x 40),"\n") or croak $!;
2011 }
2012 }
2013 seek $fh, $offset, 0 or croak $!;
2014 print $fh $commit,"\n" or croak $!;
2015 }
2016
2017 sub mkfile {
2018 my ($path) = @_;
2019 unless (-e $path) {
2020 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2021 mkpath([$dir]) unless -d $dir;
2022 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2023 close $fh or die "Couldn't close (create) $path: $!\n";
2024 }
2025 }
2026
2027 sub rev_db_set {
2028 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2029 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2030 my $db = $self->db_path($uuid);
2031 my $db_lock = "$db.lock";
2032 my $sig;
2033 if ($update_ref) {
2034 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2035 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
2036 }
2037 mkfile($db);
2038
2039 $LOCKFILES{$db_lock} = 1;
2040 my $sync;
2041 # both of these options make our .rev_db file very, very important
2042 # and we can't afford to lose it because rebuild() won't work
2043 if ($self->use_svm_props || $self->no_metadata) {
2044 $sync = 1;
2045 copy($db, $db_lock) or die "rev_db_set(@_): ",
2046 "Failed to copy: ",
2047 "$db => $db_lock ($!)\n";
2048 } else {
2049 rename $db, $db_lock or die "rev_db_set(@_): ",
2050 "Failed to rename: ",
2051 "$db => $db_lock ($!)\n";
2052 }
2053 open my $fh, '+<', $db_lock or die "Couldn't open $db_lock: $!\n";
2054 _rev_db_set($fh, $rev, $commit);
2055 if ($sync) {
2056 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2057 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2058 }
2059 close $fh or croak $!;
2060 if ($update_ref) {
2061 $_head = $self;
2062 command_noisy('update-ref', '-m', "r$rev",
2063 $self->refname, $commit);
2064 }
2065 rename $db_lock, $db or die "rev_db_set(@_): ", "Failed to rename: ",
2066 "$db_lock => $db ($!)\n";
2067 delete $LOCKFILES{$db_lock};
2068 if ($update_ref) {
2069 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2070 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2071 kill $sig, $$ if defined $sig;
2072 }
2073 }
2074
2075 sub rev_db_max {
2076 my ($self) = @_;
2077 $self->rebuild;
2078 my $db_path = $self->db_path;
2079 my @stat = stat $db_path or return 0;
2080 ($stat[7] % 41) == 0 or die "$db_path inconsistent size: $stat[7]\n";
2081 my $max = $stat[7] / 41;
2082 (($max > 0) ? $max - 1 : 0);
2083 }
2084
2085 sub rev_db_get {
2086 my ($self, $rev, $uuid) = @_;
2087 my $ret;
2088 my $offset = $rev * 41;
2089 my $db_path = $self->db_path($uuid);
2090 return undef unless -e $db_path;
2091 open my $fh, '<', $db_path or croak $!;
2092 if (sysseek($fh, $offset, 0) == $offset) {
2093 my $read = sysread($fh, $ret, 40);
2094 $ret = undef if ($read != 40 || $ret eq ('0'x40));
2095 }
2096 close $fh or croak $!;
2097 $ret;
2098 }
2099
2100 sub find_rev_before {
2101 my ($self, $rev, $eq_ok) = @_;
2102 --$rev unless $eq_ok;
2103 while ($rev > 0) {
2104 if (my $c = $self->rev_db_get($rev)) {
2105 return ($rev, $c);
2106 }
2107 --$rev;
2108 }
2109 return (undef, undef);
2110 }
2111
2112 sub _new {
2113 my ($class, $repo_id, $ref_id, $path) = @_;
2114 unless (defined $repo_id && length $repo_id) {
2115 $repo_id = $Git::SVN::default_repo_id;
2116 }
2117 unless (defined $ref_id && length $ref_id) {
2118 $_[2] = $ref_id = $Git::SVN::default_ref_id;
2119 }
2120 $_[1] = $repo_id = sanitize_remote_name($repo_id);
2121 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2122 $_[3] = $path = '' unless (defined $path);
2123 mkpath(["$ENV{GIT_DIR}/svn"]);
2124 bless {
2125 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2126 path => $path, config => "$ENV{GIT_DIR}/svn/config",
2127 db_root => "$dir/.rev_db", repo_id => $repo_id }, $class;
2128 }
2129
2130 sub db_path {
2131 my ($self, $uuid) = @_;
2132 $uuid ||= $self->ra_uuid;
2133 "$self->{db_root}.$uuid";
2134 }
2135
2136 sub uri_encode {
2137 my ($f) = @_;
2138 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2139 $f
2140 }
2141
2142 sub remove_username {
2143 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
2144 }
2145
2146 package Git::SVN::Prompt;
2147 use strict;
2148 use warnings;
2149 require SVN::Core;
2150 use vars qw/$_no_auth_cache $_username/;
2151
2152 sub simple {
2153 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2154 $may_save = undef if $_no_auth_cache;
2155 $default_username = $_username if defined $_username;
2156 if (defined $default_username && length $default_username) {
2157 if (defined $realm && length $realm) {
2158 print STDERR "Authentication realm: $realm\n";
2159 STDERR->flush;
2160 }
2161 $cred->username($default_username);
2162 } else {
2163 username($cred, $realm, $may_save, $pool);
2164 }
2165 $cred->password(_read_password("Password for '" .
2166 $cred->username . "': ", $realm));
2167 $cred->may_save($may_save);
2168 $SVN::_Core::SVN_NO_ERROR;
2169 }
2170
2171 sub ssl_server_trust {
2172 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2173 $may_save = undef if $_no_auth_cache;
2174 print STDERR "Error validating server certificate for '$realm':\n";
2175 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2176 print STDERR " - The certificate is not issued by a trusted ",
2177 "authority. Use the\n",
2178 " fingerprint to validate the certificate manually!\n";
2179 }
2180 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2181 print STDERR " - The certificate hostname does not match.\n";
2182 }
2183 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2184 print STDERR " - The certificate is not yet valid.\n";
2185 }
2186 if ($failures & $SVN::Auth::SSL::EXPIRED) {
2187 print STDERR " - The certificate has expired.\n";
2188 }
2189 if ($failures & $SVN::Auth::SSL::OTHER) {
2190 print STDERR " - The certificate has an unknown error.\n";
2191 }
2192 printf STDERR
2193 "Certificate information:\n".
2194 " - Hostname: %s\n".
2195 " - Valid: from %s until %s\n".
2196 " - Issuer: %s\n".
2197 " - Fingerprint: %s\n",
2198 map $cert_info->$_, qw(hostname valid_from valid_until
2199 issuer_dname fingerprint);
2200 my $choice;
2201 prompt:
2202 print STDERR $may_save ?
2203 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
2204 "(R)eject or accept (t)emporarily? ";
2205 STDERR->flush;
2206 $choice = lc(substr(<STDIN> || 'R', 0, 1));
2207 if ($choice =~ /^t$/i) {
2208 $cred->may_save(undef);
2209 } elsif ($choice =~ /^r$/i) {
2210 return -1;
2211 } elsif ($may_save && $choice =~ /^p$/i) {
2212 $cred->may_save($may_save);
2213 } else {
2214 goto prompt;
2215 }
2216 $cred->accepted_failures($failures);
2217 $SVN::_Core::SVN_NO_ERROR;
2218 }
2219
2220 sub ssl_client_cert {
2221 my ($cred, $realm, $may_save, $pool) = @_;
2222 $may_save = undef if $_no_auth_cache;
2223 print STDERR "Client certificate filename: ";
2224 STDERR->flush;
2225 chomp(my $filename = <STDIN>);
2226 $cred->cert_file($filename);
2227 $cred->may_save($may_save);
2228 $SVN::_Core::SVN_NO_ERROR;
2229 }
2230
2231 sub ssl_client_cert_pw {
2232 my ($cred, $realm, $may_save, $pool) = @_;
2233 $may_save = undef if $_no_auth_cache;
2234 $cred->password(_read_password("Password: ", $realm));
2235 $cred->may_save($may_save);
2236 $SVN::_Core::SVN_NO_ERROR;
2237 }
2238
2239 sub username {
2240 my ($cred, $realm, $may_save, $pool) = @_;
2241 $may_save = undef if $_no_auth_cache;
2242 if (defined $realm && length $realm) {
2243 print STDERR "Authentication realm: $realm\n";
2244 }
2245 my $username;
2246 if (defined $_username) {
2247 $username = $_username;
2248 } else {
2249 print STDERR "Username: ";
2250 STDERR->flush;
2251 chomp($username = <STDIN>);
2252 }
2253 $cred->username($username);
2254 $cred->may_save($may_save);
2255 $SVN::_Core::SVN_NO_ERROR;
2256 }
2257
2258 sub _read_password {
2259 my ($prompt, $realm) = @_;
2260 print STDERR $prompt;
2261 STDERR->flush;
2262 require Term::ReadKey;
2263 Term::ReadKey::ReadMode('noecho');
2264 my $password = '';
2265 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
2266 last if $key =~ /[\012\015]/; # \n\r
2267 $password .= $key;
2268 }
2269 Term::ReadKey::ReadMode('restore');
2270 print STDERR "\n";
2271 STDERR->flush;
2272 $password;
2273 }
2274
2275 package main;
2276
2277 {
2278 my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
2279 $SVN::Node::dir.$SVN::Node::unknown.
2280 $SVN::Node::none.$SVN::Node::file.
2281 $SVN::Node::dir.$SVN::Node::unknown.
2282 $SVN::Auth::SSL::CNMISMATCH.
2283 $SVN::Auth::SSL::NOTYETVALID.
2284 $SVN::Auth::SSL::EXPIRED.
2285 $SVN::Auth::SSL::UNKNOWNCA.
2286 $SVN::Auth::SSL::OTHER;
2287 }
2288
2289 package SVN::Git::Fetcher;
2290 use vars qw/@ISA/;
2291 use strict;
2292 use warnings;
2293 use Carp qw/croak/;
2294 use IO::File qw//;
2295 use Digest::MD5;
2296
2297 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
2298 sub new {
2299 my ($class, $git_svn) = @_;
2300 my $self = SVN::Delta::Editor->new;
2301 bless $self, $class;
2302 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
2303 $self->{empty} = {};
2304 $self->{dir_prop} = {};
2305 $self->{file_prop} = {};
2306 $self->{absent_dir} = {};
2307 $self->{absent_file} = {};
2308 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
2309 $self;
2310 }
2311
2312 sub set_path_strip {
2313 my ($self, $path) = @_;
2314 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
2315 }
2316
2317 sub open_root {
2318 { path => '' };
2319 }
2320
2321 sub open_directory {
2322 my ($self, $path, $pb, $rev) = @_;
2323 { path => $path };
2324 }
2325
2326 sub git_path {
2327 my ($self, $path) = @_;
2328 if ($self->{path_strip}) {
2329 $path =~ s!$self->{path_strip}!! or
2330 die "Failed to strip path '$path' ($self->{path_strip})\n";
2331 }
2332 $path;
2333 }
2334
2335 sub delete_entry {
2336 my ($self, $path, $rev, $pb) = @_;
2337
2338 my $gpath = $self->git_path($path);
2339 return undef if ($gpath eq '');
2340
2341 # remove entire directories.
2342 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
2343 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
2344 -r --name-only -z/,
2345 $self->{c}, '--', $gpath);
2346 local $/ = "\0";
2347 while (<$ls>) {
2348 chomp;
2349 $self->{gii}->remove($_);
2350 print "\tD\t$_\n" unless $::_q;
2351 }
2352 print "\tD\t$gpath/\n" unless $::_q;
2353 command_close_pipe($ls, $ctx);
2354 $self->{empty}->{$path} = 0
2355 } else {
2356 $self->{gii}->remove($gpath);
2357 print "\tD\t$gpath\n" unless $::_q;
2358 }
2359 undef;
2360 }
2361
2362 sub open_file {
2363 my ($self, $path, $pb, $rev) = @_;
2364 my $gpath = $self->git_path($path);
2365 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
2366 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
2367 unless (defined $mode && defined $blob) {
2368 die "$path was not found in commit $self->{c} (r$rev)\n";
2369 }
2370 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
2371 pool => SVN::Pool->new, action => 'M' };
2372 }
2373
2374 sub add_file {
2375 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
2376 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2377 delete $self->{empty}->{$dir};
2378 { path => $path, mode_a => 100644, mode_b => 100644,
2379 pool => SVN::Pool->new, action => 'A' };
2380 }
2381
2382 sub add_directory {
2383 my ($self, $path, $cp_path, $cp_rev) = @_;
2384 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2385 delete $self->{empty}->{$dir};
2386 $self->{empty}->{$path} = 1;
2387 { path => $path };
2388 }
2389
2390 sub change_dir_prop {
2391 my ($self, $db, $prop, $value) = @_;
2392 $self->{dir_prop}->{$db->{path}} ||= {};
2393 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
2394 undef;
2395 }
2396
2397 sub absent_directory {
2398 my ($self, $path, $pb) = @_;
2399 $self->{absent_dir}->{$pb->{path}} ||= [];
2400 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
2401 undef;
2402 }
2403
2404 sub absent_file {
2405 my ($self, $path, $pb) = @_;
2406 $self->{absent_file}->{$pb->{path}} ||= [];
2407 push @{$self->{absent_file}->{$pb->{path}}}, $path;
2408 undef;
2409 }
2410
2411 sub change_file_prop {
2412 my ($self, $fb, $prop, $value) = @_;
2413 if ($prop eq 'svn:executable') {
2414 if ($fb->{mode_b} != 120000) {
2415 $fb->{mode_b} = defined $value ? 100755 : 100644;
2416 }
2417 } elsif ($prop eq 'svn:special') {
2418 $fb->{mode_b} = defined $value ? 120000 : 100644;
2419 } else {
2420 $self->{file_prop}->{$fb->{path}} ||= {};
2421 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
2422 }
2423 undef;
2424 }
2425
2426 sub apply_textdelta {
2427 my ($self, $fb, $exp) = @_;
2428 my $fh = IO::File->new_tmpfile;
2429 $fh->autoflush(1);
2430 # $fh gets auto-closed() by SVN::TxDelta::apply(),
2431 # (but $base does not,) so dup() it for reading in close_file
2432 open my $dup, '<&', $fh or croak $!;
2433 my $base = IO::File->new_tmpfile;
2434 $base->autoflush(1);
2435 if ($fb->{blob}) {
2436 defined (my $pid = fork) or croak $!;
2437 if (!$pid) {
2438 open STDOUT, '>&', $base or croak $!;
2439 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
2440 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
2441 }
2442 waitpid $pid, 0;
2443 croak $? if $?;
2444
2445 if (defined $exp) {
2446 seek $base, 0, 0 or croak $!;
2447 my $md5 = Digest::MD5->new;
2448 $md5->addfile($base);
2449 my $got = $md5->hexdigest;
2450 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
2451 "expected: $exp\n",
2452 " got: $got\n" if ($got ne $exp);
2453 }
2454 }
2455 seek $base, 0, 0 or croak $!;
2456 $fb->{fh} = $dup;
2457 $fb->{base} = $base;
2458 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
2459 }
2460
2461 sub close_file {
2462 my ($self, $fb, $exp) = @_;
2463 my $hash;
2464 my $path = $self->git_path($fb->{path});
2465 if (my $fh = $fb->{fh}) {
2466 seek($fh, 0, 0) or croak $!;
2467 my $md5 = Digest::MD5->new;
2468 $md5->addfile($fh);
2469 my $got = $md5->hexdigest;
2470 die "Checksum mismatch: $path\n",
2471 "expected: $exp\n got: $got\n" if ($got ne $exp);
2472 sysseek($fh, 0, 0) or croak $!;
2473 if ($fb->{mode_b} == 120000) {
2474 sysread($fh, my $buf, 5) == 5 or croak $!;
2475 $buf eq 'link ' or die "$path has mode 120000",
2476 "but is not a link\n";
2477 }
2478 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
2479 if (!$pid) {
2480 open STDIN, '<&', $fh or croak $!;
2481 exec qw/git-hash-object -w --stdin/ or croak $!;
2482 }
2483 chomp($hash = do { local $/; <$out> });
2484 close $out or croak $!;
2485 close $fh or croak $!;
2486 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
2487 close $fb->{base} or croak $!;
2488 } else {
2489 $hash = $fb->{blob} or die "no blob information\n";
2490 }
2491 $fb->{pool}->clear;
2492 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
2493 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
2494 undef;
2495 }
2496
2497 sub abort_edit {
2498 my $self = shift;
2499 $self->{nr} = $self->{gii}->{nr};
2500 delete $self->{gii};
2501 $self->SUPER::abort_edit(@_);
2502 }
2503
2504 sub close_edit {
2505 my $self = shift;
2506 $self->{git_commit_ok} = 1;
2507 $self->{nr} = $self->{gii}->{nr};
2508 delete $self->{gii};
2509 $self->SUPER::close_edit(@_);
2510 }
2511
2512 package SVN::Git::Editor;
2513 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
2514 use strict;
2515 use warnings;
2516 use Carp qw/croak/;
2517 use IO::File;
2518 use Digest::MD5;
2519
2520 sub new {
2521 my ($class, $opts) = @_;
2522 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
2523 die "$_ required!\n" unless (defined $opts->{$_});
2524 }
2525
2526 my $pool = SVN::Pool->new;
2527 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
2528 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
2529 $opts->{r}, $mods);
2530
2531 # $opts->{ra} functions should not be used after this:
2532 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
2533 $opts->{editor_cb}, $pool);
2534 my $self = SVN::Delta::Editor->new(@ce, $pool);
2535 bless $self, $class;
2536 foreach (qw/svn_path r tree_a tree_b/) {
2537 $self->{$_} = $opts->{$_};
2538 }
2539 $self->{url} = $opts->{ra}->{url};
2540 $self->{mods} = $mods;
2541 $self->{types} = $types;
2542 $self->{pool} = $pool;
2543 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
2544 $self->{rm} = { };
2545 $self->{path_prefix} = length $self->{svn_path} ?
2546 "$self->{svn_path}/" : '';
2547 return $self;
2548 }
2549
2550 sub generate_diff {
2551 my ($tree_a, $tree_b) = @_;
2552 my @diff_tree = qw(diff-tree -z -r);
2553 if ($_cp_similarity) {
2554 push @diff_tree, "-C$_cp_similarity";
2555 } else {
2556 push @diff_tree, '-C';
2557 }
2558 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
2559 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
2560 push @diff_tree, $tree_a, $tree_b;
2561 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
2562 local $/ = "\0";
2563 my $state = 'meta';
2564 my @mods;
2565 while (<$diff_fh>) {
2566 chomp $_; # this gets rid of the trailing "\0"
2567 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
2568 $::sha1\s($::sha1)\s
2569 ([MTCRAD])\d*$/xo) {
2570 push @mods, { mode_a => $1, mode_b => $2,
2571 sha1_b => $3, chg => $4 };
2572 if ($4 =~ /^(?:C|R)$/) {
2573 $state = 'file_a';
2574 } else {
2575 $state = 'file_b';
2576 }
2577 } elsif ($state eq 'file_a') {
2578 my $x = $mods[$#mods] or croak "Empty array\n";
2579 if ($x->{chg} !~ /^(?:C|R)$/) {
2580 croak "Error parsing $_, $x->{chg}\n";
2581 }
2582 $x->{file_a} = $_;
2583 $state = 'file_b';
2584 } elsif ($state eq 'file_b') {
2585 my $x = $mods[$#mods] or croak "Empty array\n";
2586 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
2587 croak "Error parsing $_, $x->{chg}\n";
2588 }
2589 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
2590 croak "Error parsing $_, $x->{chg}\n";
2591 }
2592 $x->{file_b} = $_;
2593 $state = 'meta';
2594 } else {
2595 croak "Error parsing $_\n";
2596 }
2597 }
2598 command_close_pipe($diff_fh, $ctx);
2599 \@mods;
2600 }
2601
2602 sub check_diff_paths {
2603 my ($ra, $pfx, $rev, $mods) = @_;
2604 my %types;
2605 $pfx .= '/' if length $pfx;
2606
2607 sub type_diff_paths {
2608 my ($ra, $types, $path, $rev) = @_;
2609 my @p = split m#/+#, $path;
2610 my $c = shift @p;
2611 unless (defined $types->{$c}) {
2612 $types->{$c} = $ra->check_path($c, $rev);
2613 }
2614 while (@p) {
2615 $c .= '/' . shift @p;
2616 next if defined $types->{$c};
2617 $types->{$c} = $ra->check_path($c, $rev);
2618 }
2619 }
2620
2621 foreach my $m (@$mods) {
2622 foreach my $f (qw/file_a file_b/) {
2623 next unless defined $m->{$f};
2624 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
2625 if (length $pfx.$dir && ! defined $types{$dir}) {
2626 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
2627 }
2628 }
2629 }
2630 \%types;
2631 }
2632
2633 sub split_path {
2634 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
2635 }
2636
2637 sub repo_path {
2638 my ($self, $path) = @_;
2639 $self->{path_prefix}.(defined $path ? $path : '');
2640 }
2641
2642 sub url_path {
2643 my ($self, $path) = @_;
2644 $self->{url} . '/' . $self->repo_path($path);
2645 }
2646
2647 sub rmdirs {
2648 my ($self) = @_;
2649 my $rm = $self->{rm};
2650 delete $rm->{''}; # we never delete the url we're tracking
2651 return unless %$rm;
2652
2653 foreach (keys %$rm) {
2654 my @d = split m#/#, $_;
2655 my $c = shift @d;
2656 $rm->{$c} = 1;
2657 while (@d) {
2658 $c .= '/' . shift @d;
2659 $rm->{$c} = 1;
2660 }
2661 }
2662 delete $rm->{$self->{svn_path}};
2663 delete $rm->{''}; # we never delete the url we're tracking
2664 return unless %$rm;
2665
2666 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
2667 $self->{tree_b});
2668 local $/ = "\0";
2669 while (<$fh>) {
2670 chomp;
2671 my @dn = split m#/#, $_;
2672 while (pop @dn) {
2673 delete $rm->{join '/', @dn};
2674 }
2675 unless (%$rm) {
2676 close $fh;
2677 return;
2678 }
2679 }
2680 command_close_pipe($fh, $ctx);
2681
2682 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
2683 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
2684 $self->close_directory($bat->{$d}, $p);
2685 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
2686 print "\tD+\t$d/\n" unless $::_q;
2687 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
2688 delete $bat->{$d};
2689 }
2690 }
2691
2692 sub open_or_add_dir {
2693 my ($self, $full_path, $baton) = @_;
2694 my $t = $self->{types}->{$full_path};
2695 if (!defined $t) {
2696 die "$full_path not known in r$self->{r} or we have a bug!\n";
2697 }
2698 if ($t == $SVN::Node::none) {
2699 return $self->add_directory($full_path, $baton,
2700 undef, -1, $self->{pool});
2701 } elsif ($t == $SVN::Node::dir) {
2702 return $self->open_directory($full_path, $baton,
2703 $self->{r}, $self->{pool});
2704 }
2705 print STDERR "$full_path already exists in repository at ",
2706 "r$self->{r} and it is not a directory (",
2707 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
2708 exit 1;
2709 }
2710
2711 sub ensure_path {
2712 my ($self, $path) = @_;
2713 my $bat = $self->{bat};
2714 my $repo_path = $self->repo_path($path);
2715 return $bat->{''} unless (length $repo_path);
2716 my @p = split m#/+#, $repo_path;
2717 my $c = shift @p;
2718 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
2719 while (@p) {
2720 my $c0 = $c;
2721 $c .= '/' . shift @p;
2722 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
2723 }
2724 return $bat->{$c};
2725 }
2726
2727 sub A {
2728 my ($self, $m) = @_;
2729 my ($dir, $file) = split_path($m->{file_b});
2730 my $pbat = $self->ensure_path($dir);
2731 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2732 undef, -1);
2733 print "\tA\t$m->{file_b}\n" unless $::_q;
2734 $self->chg_file($fbat, $m);
2735 $self->close_file($fbat,undef,$self->{pool});
2736 }
2737
2738 sub C {
2739 my ($self, $m) = @_;
2740 my ($dir, $file) = split_path($m->{file_b});
2741 my $pbat = $self->ensure_path($dir);
2742 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2743 $self->url_path($m->{file_a}), $self->{r});
2744 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2745 $self->chg_file($fbat, $m);
2746 $self->close_file($fbat,undef,$self->{pool});
2747 }
2748
2749 sub delete_entry {
2750 my ($self, $path, $pbat) = @_;
2751 my $rpath = $self->repo_path($path);
2752 my ($dir, $file) = split_path($rpath);
2753 $self->{rm}->{$dir} = 1;
2754 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
2755 }
2756
2757 sub R {
2758 my ($self, $m) = @_;
2759 my ($dir, $file) = split_path($m->{file_b});
2760 my $pbat = $self->ensure_path($dir);
2761 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2762 $self->url_path($m->{file_a}), $self->{r});
2763 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2764 $self->chg_file($fbat, $m);
2765 $self->close_file($fbat,undef,$self->{pool});
2766
2767 ($dir, $file) = split_path($m->{file_a});
2768 $pbat = $self->ensure_path($dir);
2769 $self->delete_entry($m->{file_a}, $pbat);
2770 }
2771
2772 sub M {
2773 my ($self, $m) = @_;
2774 my ($dir, $file) = split_path($m->{file_b});
2775 my $pbat = $self->ensure_path($dir);
2776 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
2777 $pbat,$self->{r},$self->{pool});
2778 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
2779 $self->chg_file($fbat, $m);
2780 $self->close_file($fbat,undef,$self->{pool});
2781 }
2782
2783 sub T { shift->M(@_) }
2784
2785 sub change_file_prop {
2786 my ($self, $fbat, $pname, $pval) = @_;
2787 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
2788 }
2789
2790 sub chg_file {
2791 my ($self, $fbat, $m) = @_;
2792 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
2793 $self->change_file_prop($fbat,'svn:executable','*');
2794 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
2795 $self->change_file_prop($fbat,'svn:executable',undef);
2796 }
2797 my $fh = IO::File->new_tmpfile or croak $!;
2798 if ($m->{mode_b} =~ /^120/) {
2799 print $fh 'link ' or croak $!;
2800 $self->change_file_prop($fbat,'svn:special','*');
2801 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
2802 $self->change_file_prop($fbat,'svn:special',undef);
2803 }
2804 defined(my $pid = fork) or croak $!;
2805 if (!$pid) {
2806 open STDOUT, '>&', $fh or croak $!;
2807 exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!;
2808 }
2809 waitpid $pid, 0;
2810 croak $? if $?;
2811 $fh->flush == 0 or croak $!;
2812 seek $fh, 0, 0 or croak $!;
2813
2814 my $md5 = Digest::MD5->new;
2815 $md5->addfile($fh) or croak $!;
2816 seek $fh, 0, 0 or croak $!;
2817
2818 my $exp = $md5->hexdigest;
2819 my $pool = SVN::Pool->new;
2820 my $atd = $self->apply_textdelta($fbat, undef, $pool);
2821 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
2822 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
2823 $pool->clear;
2824
2825 close $fh or croak $!;
2826 }
2827
2828 sub D {
2829 my ($self, $m) = @_;
2830 my ($dir, $file) = split_path($m->{file_b});
2831 my $pbat = $self->ensure_path($dir);
2832 print "\tD\t$m->{file_b}\n" unless $::_q;
2833 $self->delete_entry($m->{file_b}, $pbat);
2834 }
2835
2836 sub close_edit {
2837 my ($self) = @_;
2838 my ($p,$bat) = ($self->{pool}, $self->{bat});
2839 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
2840 $self->close_directory($bat->{$_}, $p);
2841 }
2842 $self->SUPER::close_edit($p);
2843 $p->clear;
2844 }
2845
2846 sub abort_edit {
2847 my ($self) = @_;
2848 $self->SUPER::abort_edit($self->{pool});
2849 }
2850
2851 sub DESTROY {
2852 my $self = shift;
2853 $self->SUPER::DESTROY(@_);
2854 $self->{pool}->clear;
2855 }
2856
2857 # this drives the editor
2858 sub apply_diff {
2859 my ($self) = @_;
2860 my $mods = $self->{mods};
2861 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
2862 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
2863 my $f = $m->{chg};
2864 if (defined $o{$f}) {
2865 $self->$f($m);
2866 } else {
2867 fatal("Invalid change type: $f\n");
2868 }
2869 }
2870 $self->rmdirs if $_rmdir;
2871 if (@$mods == 0) {
2872 $self->abort_edit;
2873 } else {
2874 $self->close_edit;
2875 }
2876 return scalar @$mods;
2877 }
2878
2879 package Git::SVN::Ra;
2880 use vars qw/@ISA $config_dir $_log_window_size/;
2881 use strict;
2882 use warnings;
2883 my ($can_do_switch, %ignored_err, $RA);
2884
2885 BEGIN {
2886 # enforce temporary pool usage for some simple functions
2887 my $e;
2888 foreach (qw/get_latest_revnum get_uuid get_repos_root/) {
2889 $e .= "sub $_ {
2890 my \$self = shift;
2891 my \$pool = SVN::Pool->new;
2892 my \@ret = \$self->SUPER::$_(\@_,\$pool);
2893 \$pool->clear;
2894 wantarray ? \@ret : \$ret[0]; }\n";
2895 }
2896
2897 # get_dir needs $pool held in cache for dirents to work,
2898 # check_path is cacheable and rev_proplist is close enough
2899 # for our purposes.
2900 foreach (qw/check_path get_dir rev_proplist/) {
2901 $e .= "my \%${_}_cache; my \$${_}_rev = 0; sub $_ {
2902 my \$self = shift;
2903 my \$r = pop;
2904 my \$k = join(\"\\0\", \@_);
2905 if (my \$x = \$${_}_cache{\$r}->{\$k}) {
2906 return wantarray ? \@\$x : \$x->[0];
2907 }
2908 my \$pool = SVN::Pool->new;
2909 my \@ret = \$self->SUPER::$_(\@_, \$r, \$pool);
2910 if (\$r != \$${_}_rev) {
2911 \%${_}_cache = ( pool => [] );
2912 \$${_}_rev = \$r;
2913 }
2914 \$${_}_cache{\$r}->{\$k} = \\\@ret;
2915 push \@{\$${_}_cache{pool}}, \$pool;
2916 wantarray ? \@ret : \$ret[0]; }\n";
2917 }
2918 $e .= "\n1;";
2919 eval $e or die $@;
2920 }
2921
2922 sub new {
2923 my ($class, $url) = @_;
2924 $url =~ s!/+$!!;
2925 return $RA if ($RA && $RA->{url} eq $url);
2926 $RA->{pool}->clear if $RA;
2927
2928 SVN::_Core::svn_config_ensure($config_dir, undef);
2929 my ($baton, $callbacks) = SVN::Core::auth_open_helper([
2930 SVN::Client::get_simple_provider(),
2931 SVN::Client::get_ssl_server_trust_file_provider(),
2932 SVN::Client::get_simple_prompt_provider(
2933 \&Git::SVN::Prompt::simple, 2),
2934 SVN::Client::get_ssl_client_cert_prompt_provider(
2935 \&Git::SVN::Prompt::ssl_client_cert, 2),
2936 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
2937 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
2938 SVN::Client::get_username_provider(),
2939 SVN::Client::get_ssl_server_trust_prompt_provider(
2940 \&Git::SVN::Prompt::ssl_server_trust),
2941 SVN::Client::get_username_prompt_provider(
2942 \&Git::SVN::Prompt::username, 2),
2943 ]);
2944 my $config = SVN::Core::config_get_config($config_dir);
2945 my $self = SVN::Ra->new(url => $url, auth => $baton,
2946 config => $config,
2947 pool => SVN::Pool->new,
2948 auth_provider_callbacks => $callbacks);
2949 $self->{svn_path} = $url;
2950 $self->{repos_root} = $self->get_repos_root;
2951 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
2952 $RA = bless $self, $class;
2953 }
2954
2955 sub DESTROY {
2956 # do not call the real DESTROY since we store ourselves in $RA
2957 }
2958
2959 sub get_log {
2960 my ($self, @args) = @_;
2961 my $pool = SVN::Pool->new;
2962 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
2963 my $ret = $self->SUPER::get_log(@args, $pool);
2964 $pool->clear;
2965 $ret;
2966 }
2967
2968 sub get_commit_editor {
2969 my ($self, $log, $cb, $pool) = @_;
2970 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
2971 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
2972 }
2973
2974 sub gs_do_update {
2975 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
2976 my $new = ($rev_a == $rev_b);
2977 my $path = $gs->{path};
2978
2979 if ($new && -e $gs->{index}) {
2980 unlink $gs->{index} or die
2981 "Couldn't unlink index: $gs->{index}: $!\n";
2982 }
2983 my $pool = SVN::Pool->new;
2984 $editor->set_path_strip($path);
2985 my (@pc) = split m#/#, $path;
2986 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
2987 1, $editor, $pool);
2988 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2989
2990 # Since we can't rely on svn_ra_reparent being available, we'll
2991 # just have to do some magic with set_path to make it so
2992 # we only want a partial path.
2993 my $sp = '';
2994 my $final = join('/', @pc);
2995 while (@pc) {
2996 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
2997 $sp .= '/' if length $sp;
2998 $sp .= shift @pc;
2999 }
3000 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
3001
3002 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
3003
3004 $reporter->finish_report($pool);
3005 $pool->clear;
3006 $editor->{git_commit_ok};
3007 }
3008
3009 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
3010 # svn_ra_reparent didn't work before 1.4)
3011 sub gs_do_switch {
3012 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
3013 my $path = $gs->{path};
3014 my $pool = SVN::Pool->new;
3015
3016 my $full_url = $self->{url};
3017 my $old_url = $full_url;
3018 $full_url .= "/$path" if length $path;
3019 my ($ra, $reparented);
3020 if ($old_url ne $full_url) {
3021 if ($old_url !~ m#^svn(\+ssh)?://#) {
3022 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url,
3023 $pool);
3024 $self->{url} = $full_url;
3025 $reparented = 1;
3026 } else {
3027 $ra = Git::SVN::Ra->new($full_url);
3028 }
3029 }
3030 $ra ||= $self;
3031 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
3032 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3033 $reporter->set_path('', $rev_a, 0, @lock, $pool);
3034 $reporter->finish_report($pool);
3035
3036 if ($reparented) {
3037 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
3038 $self->{url} = $old_url;
3039 }
3040
3041 $pool->clear;
3042 $editor->{git_commit_ok};
3043 }
3044
3045 sub gs_fetch_loop_common {
3046 my ($self, $base, $head, $gsv, $globs) = @_;
3047 return if ($base > $head);
3048 my $inc = $_log_window_size;
3049 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
3050 my %common;
3051 my $common_max = scalar @$gsv;
3052
3053 foreach my $gs (@$gsv) {
3054 my @tmp = split m#/#, $gs->{path};
3055 my $p = '';
3056 foreach (@tmp) {
3057 $p .= length($p) ? "/$_" : $_;
3058 $common{$p} ||= 0;
3059 $common{$p}++;
3060 }
3061 }
3062 $globs ||= [];
3063 $common_max += scalar @$globs;
3064 foreach my $glob (@$globs) {
3065 my @tmp = split m#/#, $glob->{path}->{left};
3066 my $p = '';
3067 foreach (@tmp) {
3068 $p .= length($p) ? "/$_" : $_;
3069 $common{$p} ||= 0;
3070 $common{$p}++;
3071 }
3072 }
3073
3074 my $longest_path = '';
3075 foreach (sort {length $b <=> length $a} keys %common) {
3076 if ($common{$_} == $common_max) {
3077 $longest_path = $_;
3078 last;
3079 }
3080 }
3081 while (1) {
3082 my %revs;
3083 my $err;
3084 my $err_handler = $SVN::Error::handler;
3085 $SVN::Error::handler = sub {
3086 ($err) = @_;
3087 skip_unknown_revs($err);
3088 };
3089 sub _cb {
3090 my ($paths, $r, $author, $date, $log) = @_;
3091 [ dup_changed_paths($paths),
3092 { author => $author, date => $date, log => $log } ];
3093 }
3094 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
3095 sub { $revs{$_[1]} = _cb(@_) });
3096 if ($err && $max >= $head) {
3097 print STDERR "Path '$longest_path' ",
3098 "was probably deleted:\n",
3099 $err->expanded_message,
3100 "\nWill attempt to follow ",
3101 "revisions r$min .. r$max ",
3102 "committed before the deletion\n";
3103 my $hi = $max;
3104 while (--$hi >= $min) {
3105 my $ok;
3106 $self->get_log([$longest_path], $min, $hi,
3107 0, 1, 1, sub {
3108 $ok ||= $_[1];
3109 $revs{$_[1]} = _cb(@_) });
3110 if ($ok) {
3111 print STDERR "r$min .. r$ok OK\n";
3112 last;
3113 }
3114 }
3115 }
3116 $SVN::Error::handler = $err_handler;
3117
3118 my %exists = map { $_->{path} => $_ } @$gsv;
3119 foreach my $r (sort {$a <=> $b} keys %revs) {
3120 my ($paths, $logged) = @{$revs{$r}};
3121
3122 foreach my $gs ($self->match_globs(\%exists, $paths,
3123 $globs, $r)) {
3124 if ($gs->rev_db_max >= $r) {
3125 next;
3126 }
3127 next unless $gs->match_paths($paths, $r);
3128 $gs->{logged_rev_props} = $logged;
3129 if (my $last_commit = $gs->last_commit) {
3130 $gs->assert_index_clean($last_commit);
3131 }
3132 my $log_entry = $gs->do_fetch($paths, $r);
3133 if ($log_entry) {
3134 $gs->do_git_commit($log_entry);
3135 }
3136 }
3137 foreach my $g (@$globs) {
3138 my $k = "svn-remote.$g->{remote}." .
3139 "$g->{t}-maxRev";
3140 Git::SVN::tmp_config($k, $r);
3141 }
3142 }
3143 # pre-fill the .rev_db since it'll eventually get filled in
3144 # with '0' x40 if something new gets committed
3145 foreach my $gs (@$gsv) {
3146 next if defined $gs->rev_db_get($max);
3147 $gs->rev_db_set($max, 0 x40);
3148 }
3149 foreach my $g (@$globs) {
3150 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
3151 Git::SVN::tmp_config($k, $max);
3152 }
3153 last if $max >= $head;
3154 $min = $max + 1;
3155 $max += $inc;
3156 $max = $head if ($max > $head);
3157 }
3158 }
3159
3160 sub match_globs {
3161 my ($self, $exists, $paths, $globs, $r) = @_;
3162
3163 sub get_dir_check {
3164 my ($self, $exists, $g, $r) = @_;
3165 my @x = eval { $self->get_dir($g->{path}->{left}, $r) };
3166 return unless scalar @x == 3;
3167 my $dirents = $x[0];
3168 foreach my $de (keys %$dirents) {
3169 next if $dirents->{$de}->kind != $SVN::Node::dir;
3170 my $p = $g->{path}->full_path($de);
3171 next if $exists->{$p};
3172 next if (length $g->{path}->{right} &&
3173 ($self->check_path($p, $r) !=
3174 $SVN::Node::dir));
3175 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
3176 $g->{ref}->full_path($de), 1);
3177 }
3178 }
3179 foreach my $g (@$globs) {
3180 if (my $path = $paths->{"/$g->{path}->{left}"}) {
3181 if ($path->{action} =~ /^[AR]$/) {
3182 get_dir_check($self, $exists, $g, $r);
3183 }
3184 }
3185 foreach (keys %$paths) {
3186 if (/$g->{path}->{left_regex}/ &&
3187 !/$g->{path}->{regex}/) {
3188 next if $paths->{$_}->{action} !~ /^[AR]$/;
3189 get_dir_check($self, $exists, $g, $r);
3190 }
3191 next unless /$g->{path}->{regex}/;
3192 my $p = $1;
3193 my $pathname = $g->{path}->full_path($p);
3194 next if $exists->{$pathname};
3195 next if ($self->check_path($pathname, $r) !=
3196 $SVN::Node::dir);
3197 $exists->{$pathname} = Git::SVN->init(
3198 $self->{url}, $pathname, undef,
3199 $g->{ref}->full_path($p), 1);
3200 }
3201 my $c = '';
3202 foreach (split m#/#, $g->{path}->{left}) {
3203 $c .= "/$_";
3204 next unless ($paths->{$c} &&
3205 ($paths->{$c}->{action} =~ /^[AR]$/));
3206 get_dir_check($self, $exists, $g, $r);
3207 }
3208 }
3209 values %$exists;
3210 }
3211
3212 sub minimize_url {
3213 my ($self) = @_;
3214 return $self->{url} if ($self->{url} eq $self->{repos_root});
3215 my $url = $self->{repos_root};
3216 my @components = split(m!/!, $self->{svn_path});
3217 my $c = '';
3218 do {
3219 $url .= "/$c" if length $c;
3220 eval { (ref $self)->new($url)->get_latest_revnum };
3221 } while ($@ && ($c = shift @components));
3222 $url;
3223 }
3224
3225 sub can_do_switch {
3226 my $self = shift;
3227 unless (defined $can_do_switch) {
3228 my $pool = SVN::Pool->new;
3229 my $rep = eval {
3230 $self->do_switch(1, '', 0, $self->{url},
3231 SVN::Delta::Editor->new, $pool);
3232 };
3233 if ($@) {
3234 $can_do_switch = 0;
3235 } else {
3236 $rep->abort_report($pool);
3237 $can_do_switch = 1;
3238 }
3239 $pool->clear;
3240 }
3241 $can_do_switch;
3242 }
3243
3244 sub skip_unknown_revs {
3245 my ($err) = @_;
3246 my $errno = $err->apr_err();
3247 # Maybe the branch we're tracking didn't
3248 # exist when the repo started, so it's
3249 # not an error if it doesn't, just continue
3250 #
3251 # Wonderfully consistent library, eh?
3252 # 160013 - svn:// and file://
3253 # 175002 - http(s)://
3254 # 175007 - http(s):// (this repo required authorization, too...)
3255 # More codes may be discovered later...
3256 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
3257 my $err_key = $err->expanded_message;
3258 # revision numbers change every time, filter them out
3259 $err_key =~ s/\d+/\0/g;
3260 $err_key = "$errno\0$err_key";
3261 unless ($ignored_err{$err_key}) {
3262 warn "W: Ignoring error from SVN, path probably ",
3263 "does not exist: ($errno): ",
3264 $err->expanded_message,"\n";
3265 $ignored_err{$err_key} = 1;
3266 }
3267 return;
3268 }
3269 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
3270 }
3271
3272 # svn_log_changed_path_t objects passed to get_log are likely to be
3273 # overwritten even if only the refs are copied to an external variable,
3274 # so we should dup the structures in their entirety. Using an externally
3275 # passed pool (instead of our temporary and quickly cleared pool in
3276 # Git::SVN::Ra) does not help matters at all...
3277 sub dup_changed_paths {
3278 my ($paths) = @_;
3279 return undef unless $paths;
3280 my %ret;
3281 foreach my $p (keys %$paths) {
3282 my $i = $paths->{$p};
3283 my %s = map { $_ => $i->$_ }
3284 qw/copyfrom_path copyfrom_rev action/;
3285 $ret{$p} = \%s;
3286 }
3287 \%ret;
3288 }
3289
3290 package Git::SVN::Log;
3291 use strict;
3292 use warnings;
3293 use POSIX qw/strftime/;
3294 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
3295 %rusers $show_commit $incremental/;
3296 my $l_fmt;
3297
3298 sub cmt_showable {
3299 my ($c) = @_;
3300 return 1 if defined $c->{r};
3301
3302 # big commit message got truncated by the 16k pretty buffer in rev-list
3303 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
3304 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
3305 @{$c->{l}} = ();
3306 my @log = command(qw/cat-file commit/, $c->{c});
3307
3308 # shift off the headers
3309 shift @log while ($log[0] ne '');
3310 shift @log;
3311
3312 # TODO: make $c->{l} not have a trailing newline in the future
3313 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
3314
3315 (undef, $c->{r}, undef) = ::extract_metadata(
3316 (grep(/^git-svn-id: /, @log))[-1]);
3317 }
3318 return defined $c->{r};
3319 }
3320
3321 sub log_use_color {
3322 return 1 if $color;
3323 my ($dc, $dcvar);
3324 $dcvar = 'color.diff';
3325 $dc = `git-config --get $dcvar`;
3326 if ($dc eq '') {
3327 # nothing at all; fallback to "diff.color"
3328 $dcvar = 'diff.color';
3329 $dc = `git-config --get $dcvar`;
3330 }
3331 chomp($dc);
3332 if ($dc eq 'auto') {
3333 my $pc;
3334 $pc = `git-config --get color.pager`;
3335 if ($pc eq '') {
3336 # does not have it -- fallback to pager.color
3337 $pc = `git-config --bool --get pager.color`;
3338 }
3339 else {
3340 $pc = `git-config --bool --get color.pager`;
3341 if ($?) {
3342 $pc = 'false';
3343 }
3344 }
3345 chomp($pc);
3346 if (-t *STDOUT || (defined $pager && $pc eq 'true')) {
3347 return ($ENV{TERM} && $ENV{TERM} ne 'dumb');
3348 }
3349 return 0;
3350 }
3351 return 0 if $dc eq 'never';
3352 return 1 if $dc eq 'always';
3353 chomp($dc = `git-config --bool --get $dcvar`);
3354 return ($dc eq 'true');
3355 }
3356
3357 sub git_svn_log_cmd {
3358 my ($r_min, $r_max, @args) = @_;
3359 my $head = 'HEAD';
3360 foreach my $x (@args) {
3361 last if $x eq '--';
3362 next unless ::verify_ref("$x^0");
3363 $head = $x;
3364 last;
3365 }
3366
3367 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
3368 $gs ||= Git::SVN->_new;
3369 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
3370 $gs->refname);
3371 push @cmd, '-r' unless $non_recursive;
3372 push @cmd, qw/--raw --name-status/ if $verbose;
3373 push @cmd, '--color' if log_use_color();
3374 return @cmd unless defined $r_max;
3375 if ($r_max == $r_min) {
3376 push @cmd, '--max-count=1';
3377 if (my $c = $gs->rev_db_get($r_max)) {
3378 push @cmd, $c;
3379 }
3380 } else {
3381 my ($c_min, $c_max);
3382 $c_max = $gs->rev_db_get($r_max);
3383 $c_min = $gs->rev_db_get($r_min);
3384 if (defined $c_min && defined $c_max) {
3385 if ($r_max > $r_max) {
3386 push @cmd, "$c_min..$c_max";
3387 } else {
3388 push @cmd, "$c_max..$c_min";
3389 }
3390 } elsif ($r_max > $r_min) {
3391 push @cmd, $c_max;
3392 } else {
3393 push @cmd, $c_min;
3394 }
3395 }
3396 return @cmd;
3397 }
3398
3399 # adapted from pager.c
3400 sub config_pager {
3401 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
3402 if (!defined $pager) {
3403 $pager = 'less';
3404 } elsif (length $pager == 0 || $pager eq 'cat') {
3405 $pager = undef;
3406 }
3407 }
3408
3409 sub run_pager {
3410 return unless -t *STDOUT;
3411 pipe my $rfd, my $wfd or return;
3412 defined(my $pid = fork) or ::fatal "Can't fork: $!\n";
3413 if (!$pid) {
3414 open STDOUT, '>&', $wfd or
3415 ::fatal "Can't redirect to stdout: $!\n";
3416 return;
3417 }
3418 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!\n";
3419 $ENV{LESS} ||= 'FRSX';
3420 exec $pager or ::fatal "Can't run pager: $! ($pager)\n";
3421 }
3422
3423 sub tz_to_s_offset {
3424 my ($tz) = @_;
3425 $tz =~ s/(\d\d)$//;
3426 return ($1 * 60) + ($tz * 3600);
3427 }
3428
3429 sub get_author_info {
3430 my ($dest, $author, $t, $tz) = @_;
3431 $author =~ s/(?:^\s*|\s*$)//g;
3432 $dest->{a_raw} = $author;
3433 my $au;
3434 if ($::_authors) {
3435 $au = $rusers{$author} || undef;
3436 }
3437 if (!$au) {
3438 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
3439 }
3440 $dest->{t} = $t;
3441 $dest->{tz} = $tz;
3442 $dest->{a} = $au;
3443 # Date::Parse isn't in the standard Perl distro :(
3444 if ($tz =~ s/^\+//) {
3445 $t += tz_to_s_offset($tz);
3446 } elsif ($tz =~ s/^\-//) {
3447 $t -= tz_to_s_offset($tz);
3448 }
3449 $dest->{t_utc} = $t;
3450 }
3451
3452 sub process_commit {
3453 my ($c, $r_min, $r_max, $defer) = @_;
3454 if (defined $r_min && defined $r_max) {
3455 if ($r_min == $c->{r} && $r_min == $r_max) {
3456 show_commit($c);
3457 return 0;
3458 }
3459 return 1 if $r_min == $r_max;
3460 if ($r_min < $r_max) {
3461 # we need to reverse the print order
3462 return 0 if (defined $limit && --$limit < 0);
3463 push @$defer, $c;
3464 return 1;
3465 }
3466 if ($r_min != $r_max) {
3467 return 1 if ($r_min < $c->{r});
3468 return 1 if ($r_max > $c->{r});
3469 }
3470 }
3471 return 0 if (defined $limit && --$limit < 0);
3472 show_commit($c);
3473 return 1;
3474 }
3475
3476 sub show_commit {
3477 my $c = shift;
3478 if ($oneline) {
3479 my $x = "\n";
3480 if (my $l = $c->{l}) {
3481 while ($l->[0] =~ /^\s*$/) { shift @$l }
3482 $x = $l->[0];
3483 }
3484 $l_fmt ||= 'A' . length($c->{r});
3485 print 'r',pack($l_fmt, $c->{r}),' | ';
3486 print "$c->{c} | " if $show_commit;
3487 print $x;
3488 } else {
3489 show_commit_normal($c);
3490 }
3491 }
3492
3493 sub show_commit_changed_paths {
3494 my ($c) = @_;
3495 return unless $c->{changed};
3496 print "Changed paths:\n", @{$c->{changed}};
3497 }
3498
3499 sub show_commit_normal {
3500 my ($c) = @_;
3501 print '-' x72, "\nr$c->{r} | ";
3502 print "$c->{c} | " if $show_commit;
3503 print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
3504 localtime($c->{t_utc})), ' | ';
3505 my $nr_line = 0;
3506
3507 if (my $l = $c->{l}) {
3508 while ($l->[$#$l] eq "\n" && $#$l > 0
3509 && $l->[($#$l - 1)] eq "\n") {
3510 pop @$l;
3511 }
3512 $nr_line = scalar @$l;
3513 if (!$nr_line) {
3514 print "1 line\n\n\n";
3515 } else {
3516 if ($nr_line == 1) {
3517 $nr_line = '1 line';
3518 } else {
3519 $nr_line .= ' lines';
3520 }
3521 print $nr_line, "\n";
3522 show_commit_changed_paths($c);
3523 print "\n";
3524 print $_ foreach @$l;
3525 }
3526 } else {
3527 print "1 line\n";
3528 show_commit_changed_paths($c);
3529 print "\n";
3530
3531 }
3532 foreach my $x (qw/raw stat diff/) {
3533 if ($c->{$x}) {
3534 print "\n";
3535 print $_ foreach @{$c->{$x}}
3536 }
3537 }
3538 }
3539
3540 sub cmd_show_log {
3541 my (@args) = @_;
3542 my ($r_min, $r_max);
3543 my $r_last = -1; # prevent dupes
3544 if (defined $TZ) {
3545 $ENV{TZ} = $TZ;
3546 } else {
3547 delete $ENV{TZ};
3548 }
3549 if (defined $::_revision) {
3550 if ($::_revision =~ /^(\d+):(\d+)$/) {
3551 ($r_min, $r_max) = ($1, $2);
3552 } elsif ($::_revision =~ /^\d+$/) {
3553 $r_min = $r_max = $::_revision;
3554 } else {
3555 ::fatal "-r$::_revision is not supported, use ",
3556 "standard \'git log\' arguments instead\n";
3557 }
3558 }
3559
3560 config_pager();
3561 @args = (git_svn_log_cmd($r_min, $r_max, @args), @args);
3562 my $log = command_output_pipe(@args);
3563 run_pager();
3564 my (@k, $c, $d, $stat);
3565 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
3566 while (<$log>) {
3567 if (/^${esc_color}commit ($::sha1_short)/o) {
3568 my $cmt = $1;
3569 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
3570 $r_last = $c->{r};
3571 process_commit($c, $r_min, $r_max, \@k) or
3572 goto out;
3573 }
3574 $d = undef;
3575 $c = { c => $cmt };
3576 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
3577 get_author_info($c, $1, $2, $3);
3578 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
3579 # ignore
3580 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
3581 push @{$c->{raw}}, $_;
3582 } elsif (/^${esc_color}[ACRMDT]\t/) {
3583 # we could add $SVN->{svn_path} here, but that requires
3584 # remote access at the moment (repo_path_split)...
3585 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
3586 push @{$c->{changed}}, $_;
3587 } elsif (/^${esc_color}diff /o) {
3588 $d = 1;
3589 push @{$c->{diff}}, $_;
3590 } elsif ($d) {
3591 push @{$c->{diff}}, $_;
3592 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
3593 $esc_color*[\+\-]*$esc_color$/x) {
3594 $stat = 1;
3595 push @{$c->{stat}}, $_;
3596 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
3597 push @{$c->{stat}}, $_;
3598 $stat = undef;
3599 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
3600 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
3601 } elsif (s/^${esc_color} //o) {
3602 push @{$c->{l}}, $_;
3603 }
3604 }
3605 if ($c && defined $c->{r} && $c->{r} != $r_last) {
3606 $r_last = $c->{r};
3607 process_commit($c, $r_min, $r_max, \@k);
3608 }
3609 if (@k) {
3610 my $swap = $r_max;
3611 $r_max = $r_min;
3612 $r_min = $swap;
3613 process_commit($_, $r_min, $r_max) foreach reverse @k;
3614 }
3615 out:
3616 close $log;
3617 print '-' x72,"\n" unless $incremental || $oneline;
3618 }
3619
3620 package Git::SVN::Migration;
3621 # these version numbers do NOT correspond to actual version numbers
3622 # of git nor git-svn. They are just relative.
3623 #
3624 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
3625 #
3626 # v1 layout: .git/$id/info/url, refs/remotes/$id
3627 #
3628 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
3629 #
3630 # v3 layout: .git/svn/$id, refs/remotes/$id
3631 # - info/url may remain for backwards compatibility
3632 # - this is what we migrate up to this layout automatically,
3633 # - this will be used by git svn init on single branches
3634 # v3.1 layout (auto migrated):
3635 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
3636 # for backwards compatibility
3637 #
3638 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
3639 # - this is only created for newly multi-init-ed
3640 # repositories. Similar in spirit to the
3641 # --use-separate-remotes option in git-clone (now default)
3642 # - we do not automatically migrate to this (following
3643 # the example set by core git)
3644 use strict;
3645 use warnings;
3646 use Carp qw/croak/;
3647 use File::Path qw/mkpath/;
3648 use File::Basename qw/dirname basename/;
3649 use vars qw/$_minimize/;
3650
3651 sub migrate_from_v0 {
3652 my $git_dir = $ENV{GIT_DIR};
3653 return undef unless -d $git_dir;
3654 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3655 my $migrated = 0;
3656 while (<$fh>) {
3657 chomp;
3658 my ($id, $orig_ref) = ($_, $_);
3659 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
3660 next unless -f "$git_dir/$id/info/url";
3661 my $new_ref = "refs/remotes/$id";
3662 if (::verify_ref("$new_ref^0")) {
3663 print STDERR "W: $orig_ref is probably an old ",
3664 "branch used by an ancient version of ",
3665 "git-svn.\n",
3666 "However, $new_ref also exists.\n",
3667 "We will not be able ",
3668 "to use this branch until this ",
3669 "ambiguity is resolved.\n";
3670 next;
3671 }
3672 print STDERR "Migrating from v0 layout...\n" if !$migrated;
3673 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
3674 command_noisy('update-ref', $new_ref, $orig_ref);
3675 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
3676 $migrated++;
3677 }
3678 command_close_pipe($fh, $ctx);
3679 print STDERR "Done migrating from v0 layout...\n" if $migrated;
3680 $migrated;
3681 }
3682
3683 sub migrate_from_v1 {
3684 my $git_dir = $ENV{GIT_DIR};
3685 my $migrated = 0;
3686 return $migrated unless -d $git_dir;
3687 my $svn_dir = "$git_dir/svn";
3688
3689 # just in case somebody used 'svn' as their $id at some point...
3690 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
3691
3692 print STDERR "Migrating from a git-svn v1 layout...\n";
3693 mkpath([$svn_dir]);
3694 print STDERR "Data from a previous version of git-svn exists, but\n\t",
3695 "$svn_dir\n\t(required for this version ",
3696 "($::VERSION) of git-svn) does not. exist\n";
3697 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3698 while (<$fh>) {
3699 my $x = $_;
3700 next unless $x =~ s#^refs/remotes/##;
3701 chomp $x;
3702 next unless -f "$git_dir/$x/info/url";
3703 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
3704 next unless $u;
3705 my $dn = dirname("$git_dir/svn/$x");
3706 mkpath([$dn]) unless -d $dn;
3707 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
3708 mkpath(["$git_dir/svn/svn"]);
3709 print STDERR " - $git_dir/$x/info => ",
3710 "$git_dir/svn/$x/info\n";
3711 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
3712 croak "$!: $x";
3713 # don't worry too much about these, they probably
3714 # don't exist with repos this old (save for index,
3715 # and we can easily regenerate that)
3716 foreach my $f (qw/unhandled.log index .rev_db/) {
3717 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
3718 }
3719 } else {
3720 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
3721 rename "$git_dir/$x", "$git_dir/svn/$x" or
3722 croak "$!: $x";
3723 }
3724 $migrated++;
3725 }
3726 command_close_pipe($fh, $ctx);
3727 print STDERR "Done migrating from a git-svn v1 layout\n";
3728 $migrated;
3729 }
3730
3731 sub read_old_urls {
3732 my ($l_map, $pfx, $path) = @_;
3733 my @dir;
3734 foreach (<$path/*>) {
3735 if (-r "$_/info/url") {
3736 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
3737 my $ref_id = $pfx . basename $_;
3738 my $url = ::file_to_s("$_/info/url");
3739 $l_map->{$ref_id} = $url;
3740 } elsif (-d $_) {
3741 push @dir, $_;
3742 }
3743 }
3744 foreach (@dir) {
3745 my $x = $_;
3746 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
3747 read_old_urls($l_map, $x, $_);
3748 }
3749 }
3750
3751 sub migrate_from_v2 {
3752 my @cfg = command(qw/config -l/);
3753 return if grep /^svn-remote\..+\.url=/, @cfg;
3754 my %l_map;
3755 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
3756 my $migrated = 0;
3757
3758 foreach my $ref_id (sort keys %l_map) {
3759 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
3760 if ($@) {
3761 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
3762 }
3763 $migrated++;
3764 }
3765 $migrated;
3766 }
3767
3768 sub minimize_connections {
3769 my $r = Git::SVN::read_all_remotes();
3770 my $new_urls = {};
3771 my $root_repos = {};
3772 foreach my $repo_id (keys %$r) {
3773 my $url = $r->{$repo_id}->{url} or next;
3774 my $fetch = $r->{$repo_id}->{fetch} or next;
3775 my $ra = Git::SVN::Ra->new($url);
3776
3777 # skip existing cases where we already connect to the root
3778 if (($ra->{url} eq $ra->{repos_root}) ||
3779 (Git::SVN::sanitize_remote_name($ra->{repos_root}) eq
3780 $repo_id)) {
3781 $root_repos->{$ra->{url}} = $repo_id;
3782 next;
3783 }
3784
3785 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
3786 my $root_path = $ra->{url};
3787 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
3788 foreach my $path (keys %$fetch) {
3789 my $ref_id = $fetch->{$path};
3790 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
3791
3792 # make sure we can read when connecting to
3793 # a higher level of a repository
3794 my ($last_rev, undef) = $gs->last_rev_commit;
3795 if (!defined $last_rev) {
3796 $last_rev = eval {
3797 $root_ra->get_latest_revnum;
3798 };
3799 next if $@;
3800 }
3801 my $new = $root_path;
3802 $new .= length $path ? "/$path" : '';
3803 eval {
3804 $root_ra->get_log([$new], $last_rev, $last_rev,
3805 0, 0, 1, sub { });
3806 };
3807 next if $@;
3808 $new_urls->{$ra->{repos_root}}->{$new} =
3809 { ref_id => $ref_id,
3810 old_repo_id => $repo_id,
3811 old_path => $path };
3812 }
3813 }
3814
3815 my @emptied;
3816 foreach my $url (keys %$new_urls) {
3817 # see if we can re-use an existing [svn-remote "repo_id"]
3818 # instead of creating a(n ugly) new section:
3819 my $repo_id = $root_repos->{$url} ||
3820 Git::SVN::sanitize_remote_name($url);
3821
3822 my $fetch = $new_urls->{$url};
3823 foreach my $path (keys %$fetch) {
3824 my $x = $fetch->{$path};
3825 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
3826 my $pfx = "svn-remote.$x->{old_repo_id}";
3827
3828 my $old_fetch = quotemeta("$x->{old_path}:".
3829 "refs/remotes/$x->{ref_id}");
3830 command_noisy(qw/config --unset/,
3831 "$pfx.fetch", '^'. $old_fetch . '$');
3832 delete $r->{$x->{old_repo_id}}->
3833 {fetch}->{$x->{old_path}};
3834 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
3835 command_noisy(qw/config --unset/,
3836 "$pfx.url");
3837 push @emptied, $x->{old_repo_id}
3838 }
3839 }
3840 }
3841 if (@emptied) {
3842 my $file = $ENV{GIT_CONFIG} || $ENV{GIT_CONFIG_LOCAL} ||
3843 "$ENV{GIT_DIR}/config";
3844 print STDERR <<EOF;
3845 The following [svn-remote] sections in your config file ($file) are empty
3846 and can be safely removed:
3847 EOF
3848 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
3849 }
3850 }
3851
3852 sub migration_check {
3853 migrate_from_v0();
3854 migrate_from_v1();
3855 migrate_from_v2();
3856 minimize_connections() if $_minimize;
3857 }
3858
3859 package Git::IndexInfo;
3860 use strict;
3861 use warnings;
3862 use Git qw/command_input_pipe command_close_pipe/;
3863
3864 sub new {
3865 my ($class) = @_;
3866 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
3867 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
3868 }
3869
3870 sub remove {
3871 my ($self, $path) = @_;
3872 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
3873 return ++$self->{nr};
3874 }
3875 undef;
3876 }
3877
3878 sub update {
3879 my ($self, $mode, $hash, $path) = @_;
3880 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
3881 return ++$self->{nr};
3882 }
3883 undef;
3884 }
3885
3886 sub DESTROY {
3887 my ($self) = @_;
3888 command_close_pipe($self->{gui}, $self->{ctx});
3889 }
3890
3891 package Git::SVN::GlobSpec;
3892 use strict;
3893 use warnings;
3894
3895 sub new {
3896 my ($class, $glob) = @_;
3897 my $re = $glob;
3898 $re =~ s!/+$!!g; # no need for trailing slashes
3899 my $nr = ($re =~ s!^(.*)\*(.*)$!\(\[^/\]+\)!g);
3900 my ($left, $right) = ($1, $2);
3901 if ($nr > 1) {
3902 die "Only one '*' wildcard expansion ",
3903 "is supported (got $nr): '$glob'\n";
3904 } elsif ($nr == 0) {
3905 die "One '*' is needed for glob: '$glob'\n";
3906 }
3907 $re = quotemeta($left) . $re . quotemeta($right);
3908 if (length $left && !($left =~ s!/+$!!g)) {
3909 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
3910 }
3911 if (length $right && !($right =~ s!^/+!!g)) {
3912 die "Missing leading '/' on right side of: '$glob' ($right)\n";
3913 }
3914 my $left_re = qr/^\/\Q$left\E(\/|$)/;
3915 bless { left => $left, right => $right, left_regex => $left_re,
3916 regex => qr/$re/, glob => $glob }, $class;
3917 }
3918
3919 sub full_path {
3920 my ($self, $path) = @_;
3921 return (length $self->{left} ? "$self->{left}/" : '') .
3922 $path . (length $self->{right} ? "/$self->{right}" : '');
3923 }
3924
3925 __END__
3926
3927 Data structures:
3928
3929
3930 $remotes = { # returned by read_all_remotes()
3931 'svn' => {
3932 # svn-remote.svn.url=https://svn.musicpd.org
3933 url => 'https://svn.musicpd.org',
3934 # svn-remote.svn.fetch=mpd/trunk:trunk
3935 fetch => {
3936 'mpd/trunk' => 'trunk',
3937 },
3938 # svn-remote.svn.tags=mpd/tags/*:tags/*
3939 tags => {
3940 path => {
3941 left => 'mpd/tags',
3942 right => '',
3943 regex => qr!mpd/tags/([^/]+)$!,
3944 glob => 'tags/*',
3945 },
3946 ref => {
3947 left => 'tags',
3948 right => '',
3949 regex => qr!tags/([^/]+)$!,
3950 glob => 'tags/*',
3951 },
3952 }
3953 }
3954 };
3955
3956 $log_entry hashref as returned by libsvn_log_entry()
3957 {
3958 log => 'whitespace-formatted log entry
3959 ', # trailing newline is preserved
3960 revision => '8', # integer
3961 date => '2004-02-24T17:01:44.108345Z', # commit date
3962 author => 'committer name'
3963 };
3964
3965
3966 # this is generated by generate_diff();
3967 @mods = array of diff-index line hashes, each element represents one line
3968 of diff-index output
3969
3970 diff-index line ($m hash)
3971 {
3972 mode_a => first column of diff-index output, no leading ':',
3973 mode_b => second column of diff-index output,
3974 sha1_b => sha1sum of the final blob,
3975 chg => change type [MCRADT],
3976 file_a => original file name of a file (iff chg is 'C' or 'R')
3977 file_b => new/current file name of a file (any chg)
3978 }
3979 ;
3980
3981 # retval of read_url_paths{,_all}();
3982 $l_map = {
3983 # repository root url
3984 'https://svn.musicpd.org' => {
3985 # repository path # GIT_SVN_ID
3986 'mpd/trunk' => 'trunk',
3987 'mpd/tags/0.11.5' => 'tags/0.11.5',
3988 },
3989 }
3990
3991 Notes:
3992 I don't trust the each() function on unless I created %hash myself
3993 because the internal iterator may not have started at base.
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