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Add howto files to rpm packages.
[git/jnareb-git/bp-gitweb.git] / git-svn.perl
blob3c4f490b742c18b6ba96217f0dc1abb4af054e21
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, $_no_rebase,
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 'no-rebase' => \$_no_rebase,
118 %cmt_opts, %fc_opts } ],
119 'set-tree' => [ \&cmd_set_tree,
120 "Set an SVN repository to a git tree-ish",
121 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
122 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
123 { 'revision|r=i' => \$_revision } ],
124 'multi-fetch' => [ \&cmd_multi_fetch,
125 "Deprecated alias for $0 fetch --all",
126 { 'revision|r=s' => \$_revision, %fc_opts } ],
127 'migrate' => [ sub { },
128 # no-op, we automatically run this anyways,
129 'Migrate configuration/metadata/layout from
130 previous versions of git-svn',
131 { 'minimize' => \$Git::SVN::Migration::_minimize,
132 %remote_opts } ],
133 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
134 { 'limit=i' => \$Git::SVN::Log::limit,
135 'revision|r=s' => \$_revision,
136 'verbose|v' => \$Git::SVN::Log::verbose,
137 'incremental' => \$Git::SVN::Log::incremental,
138 'oneline' => \$Git::SVN::Log::oneline,
139 'show-commit' => \$Git::SVN::Log::show_commit,
140 'non-recursive' => \$Git::SVN::Log::non_recursive,
141 'authors-file|A=s' => \$_authors,
142 'color' => \$Git::SVN::Log::color,
143 'pager=s' => \$Git::SVN::Log::pager,
144 } ],
145 'find-rev' => [ \&cmd_find_rev, "Translate between SVN revision numbers and tree-ish",
146 { } ],
147 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
148 { 'merge|m|M' => \$_merge,
149 'verbose|v' => \$_verbose,
150 'strategy|s=s' => \$_strategy,
151 'local|l' => \$_local,
152 'fetch-all|all' => \$_fetch_all,
153 %fc_opts } ],
154 'commit-diff' => [ \&cmd_commit_diff,
155 'Commit a diff between two trees',
156 { 'message|m=s' => \$_message,
157 'file|F=s' => \$_file,
158 'revision|r=s' => \$_revision,
159 %cmt_opts } ],
160 );
161
162 my $cmd;
163 for (my $i = 0; $i < @ARGV; $i++) {
164 if (defined $cmd{$ARGV[$i]}) {
165 $cmd = $ARGV[$i];
166 splice @ARGV, $i, 1;
167 last;
168 }
169 };
170
171 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
172
173 read_repo_config(\%opts);
174 Getopt::Long::Configure('pass_through') if ($cmd && $cmd eq 'log');
175 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
176 'minimize-connections' => \$Git::SVN::Migration::_minimize,
177 'id|i=s' => \$Git::SVN::default_ref_id,
178 'svn-remote|remote|R=s' => sub {
179 $Git::SVN::no_reuse_existing = 1;
180 $Git::SVN::default_repo_id = $_[1] });
181 exit 1 if (!$rv && $cmd && $cmd ne 'log');
182
183 usage(0) if $_help;
184 version() if $_version;
185 usage(1) unless defined $cmd;
186 load_authors() if $_authors;
187
188 # make sure we're always running
189 unless ($cmd =~ /(?:clone|init|multi-init)$/) {
190 unless (-d $ENV{GIT_DIR}) {
191 if ($git_dir_user_set) {
192 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
193 "but it is not a directory\n";
194 }
195 my $git_dir = delete $ENV{GIT_DIR};
196 chomp(my $cdup = command_oneline(qw/rev-parse --show-cdup/));
197 unless (length $cdup) {
198 die "Already at toplevel, but $git_dir ",
199 "not found '$cdup'\n";
200 }
201 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
202 unless (-d $git_dir) {
203 die "$git_dir still not found after going to ",
204 "'$cdup'\n";
205 }
206 $ENV{GIT_DIR} = $git_dir;
207 }
208 }
209 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
210 Git::SVN::Migration::migration_check();
211 }
212 Git::SVN::init_vars();
213 eval {
214 Git::SVN::verify_remotes_sanity();
215 $cmd{$cmd}->[0]->(@ARGV);
216 };
217 fatal $@ if $@;
218 post_fetch_checkout();
219 exit 0;
220
221 ####################### primary functions ######################
222 sub usage {
223 my $exit = shift || 0;
224 my $fd = $exit ? \*STDERR : \*STDOUT;
225 print $fd <<"";
226 git-svn - bidirectional operations between a single Subversion tree and git
227 Usage: $0 <command> [options] [arguments]\n
228
229 print $fd "Available commands:\n" unless $cmd;
230
231 foreach (sort keys %cmd) {
232 next if $cmd && $cmd ne $_;
233 next if /^multi-/; # don't show deprecated commands
234 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
235 foreach (keys %{$cmd{$_}->[2]}) {
236 # mixed-case options are for .git/config only
237 next if /[A-Z]/ && /^[a-z]+$/i;
238 # prints out arguments as they should be passed:
239 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
240 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
241 "--$_" : "-$_" }
242 split /\|/,$_)," $x\n";
243 }
244 }
245 print $fd <<"";
246 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
247 arbitrary identifier if you're tracking multiple SVN branches/repositories in
248 one git repository and want to keep them separate. See git-svn(1) for more
249 information.
250
251 exit $exit;
252 }
253
254 sub version {
255 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
256 exit 0;
257 }
258
259 sub do_git_init_db {
260 unless (-d $ENV{GIT_DIR}) {
261 my @init_db = ('init');
262 push @init_db, "--template=$_template" if defined $_template;
263 if (defined $_shared) {
264 if ($_shared =~ /[a-z]/) {
265 push @init_db, "--shared=$_shared";
266 } else {
267 push @init_db, "--shared";
268 }
269 }
270 command_noisy(@init_db);
271 }
272 my $set;
273 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
274 foreach my $i (keys %icv) {
275 die "'$set' and '$i' cannot both be set\n" if $set;
276 next unless defined $icv{$i};
277 command_noisy('config', "$pfx.$i", $icv{$i});
278 $set = $i;
279 }
280 }
281
282 sub init_subdir {
283 my $repo_path = shift or return;
284 mkpath([$repo_path]) unless -d $repo_path;
285 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
286 $ENV{GIT_DIR} = '.git';
287 }
288
289 sub cmd_clone {
290 my ($url, $path) = @_;
291 if (!defined $path &&
292 (defined $_trunk || defined $_branches || defined $_tags) &&
293 $url !~ m#^[a-z\+]+://#) {
294 $path = $url;
295 }
296 $path = basename($url) if !defined $path || !length $path;
297 cmd_init($url, $path);
298 Git::SVN::fetch_all($Git::SVN::default_repo_id);
299 }
300
301 sub cmd_init {
302 if (defined $_trunk || defined $_branches || defined $_tags) {
303 return cmd_multi_init(@_);
304 }
305 my $url = shift or die "SVN repository location required ",
306 "as a command-line argument\n";
307 init_subdir(@_);
308 do_git_init_db();
309
310 Git::SVN->init($url);
311 }
312
313 sub cmd_fetch {
314 if (grep /^\d+=./, @_) {
315 die "'<rev>=<commit>' fetch arguments are ",
316 "no longer supported.\n";
317 }
318 my ($remote) = @_;
319 if (@_ > 1) {
320 die "Usage: $0 fetch [--all] [svn-remote]\n";
321 }
322 $remote ||= $Git::SVN::default_repo_id;
323 if ($_fetch_all) {
324 cmd_multi_fetch();
325 } else {
326 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
327 }
328 }
329
330 sub cmd_set_tree {
331 my (@commits) = @_;
332 if ($_stdin || !@commits) {
333 print "Reading from stdin...\n";
334 @commits = ();
335 while (<STDIN>) {
336 if (/\b($sha1_short)\b/o) {
337 unshift @commits, $1;
338 }
339 }
340 }
341 my @revs;
342 foreach my $c (@commits) {
343 my @tmp = command('rev-parse',$c);
344 if (scalar @tmp == 1) {
345 push @revs, $tmp[0];
346 } elsif (scalar @tmp > 1) {
347 push @revs, reverse(command('rev-list',@tmp));
348 } else {
349 fatal "Failed to rev-parse $c\n";
350 }
351 }
352 my $gs = Git::SVN->new;
353 my ($r_last, $cmt_last) = $gs->last_rev_commit;
354 $gs->fetch;
355 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
356 fatal "There are new revisions that were fetched ",
357 "and need to be merged (or acknowledged) ",
358 "before committing.\nlast rev: $r_last\n",
359 " current: $gs->{last_rev}\n";
360 }
361 $gs->set_tree($_) foreach @revs;
362 print "Done committing ",scalar @revs," revisions to SVN\n";
363 }
364
365 sub cmd_dcommit {
366 my $head = shift;
367 $head ||= 'HEAD';
368 my @refs;
369 my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
370 unless ($gs) {
371 die "Unable to determine upstream SVN information from ",
372 "$head history\n";
373 }
374 my $c = $refs[-1];
375 my $last_rev;
376 foreach my $d (@refs) {
377 if (!verify_ref("$d~1")) {
378 fatal "Commit $d\n",
379 "has no parent commit, and therefore ",
380 "nothing to diff against.\n",
381 "You should be working from a repository ",
382 "originally created by git-svn\n";
383 }
384 unless (defined $last_rev) {
385 (undef, $last_rev, undef) = cmt_metadata("$d~1");
386 unless (defined $last_rev) {
387 fatal "Unable to extract revision information ",
388 "from commit $d~1\n";
389 }
390 }
391 if ($_dry_run) {
392 print "diff-tree $d~1 $d\n";
393 } else {
394 my %ed_opts = ( r => $last_rev,
395 log => get_commit_entry($d)->{log},
396 ra => Git::SVN::Ra->new($url),
397 tree_a => "$d~1",
398 tree_b => $d,
399 editor_cb => sub {
400 print "Committed r$_[0]\n";
401 $last_rev = $_[0]; },
402 svn_path => '');
403 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
404 print "No changes\n$d~1 == $d\n";
405 }
406 }
407 }
408 return if $_dry_run;
409 unless ($gs) {
410 warn "Could not determine fetch information for $url\n",
411 "Will not attempt to fetch and rebase commits.\n",
412 "This probably means you have useSvmProps and should\n",
413 "now resync your SVN::Mirror repository.\n";
414 return;
415 }
416 $_fetch_all ? $gs->fetch_all : $gs->fetch;
417 unless ($_no_rebase) {
418 # we always want to rebase against the current HEAD, not any
419 # head that was passed to us
420 my @diff = command('diff-tree', 'HEAD', $gs->refname, '--');
421 my @finish;
422 if (@diff) {
423 @finish = rebase_cmd();
424 print STDERR "W: HEAD and ", $gs->refname, " differ, ",
425 "using @finish:\n", "@diff";
426 } else {
427 print "No changes between current HEAD and ",
428 $gs->refname, "\nResetting to the latest ",
429 $gs->refname, "\n";
430 @finish = qw/reset --mixed/;
431 }
432 command_noisy(@finish, $gs->refname);
433 }
434 }
435
436 sub cmd_find_rev {
437 my $revision_or_hash = shift;
438 my $result;
439 if ($revision_or_hash =~ /^r\d+$/) {
440 my $head = shift;
441 $head ||= 'HEAD';
442 my @refs;
443 my (undef, undef, undef, $gs) = working_head_info($head, \@refs);
444 unless ($gs) {
445 die "Unable to determine upstream SVN information from ",
446 "$head history\n";
447 }
448 my $desired_revision = substr($revision_or_hash, 1);
449 $result = $gs->rev_db_get($desired_revision);
450 } else {
451 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
452 $result = $rev;
453 }
454 print "$result\n" if $result;
455 }
456
457 sub cmd_rebase {
458 command_noisy(qw/update-index --refresh/);
459 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
460 unless ($gs) {
461 die "Unable to determine upstream SVN information from ",
462 "working tree history\n";
463 }
464 if (command(qw/diff-index HEAD --/)) {
465 print STDERR "Cannot rebase with uncommited changes:\n";
466 command_noisy('status');
467 exit 1;
468 }
469 unless ($_local) {
470 $_fetch_all ? $gs->fetch_all : $gs->fetch;
471 }
472 command_noisy(rebase_cmd(), $gs->refname);
473 }
474
475 sub cmd_show_ignore {
476 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
477 $gs ||= Git::SVN->new;
478 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
479 $gs->traverse_ignore(\*STDOUT, $gs->{path}, $r);
480 }
481
482 sub cmd_multi_init {
483 my $url = shift;
484 unless (defined $_trunk || defined $_branches || defined $_tags) {
485 usage(1);
486 }
487 $_prefix = '' unless defined $_prefix;
488 if (defined $url) {
489 $url =~ s#/+$##;
490 init_subdir(@_);
491 }
492 do_git_init_db();
493 if (defined $_trunk) {
494 my $trunk_ref = $_prefix . 'trunk';
495 # try both old-style and new-style lookups:
496 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
497 unless ($gs_trunk) {
498 my ($trunk_url, $trunk_path) =
499 complete_svn_url($url, $_trunk);
500 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
501 undef, $trunk_ref);
502 }
503 }
504 return unless defined $_branches || defined $_tags;
505 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
506 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
507 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
508 }
509
510 sub cmd_multi_fetch {
511 my $remotes = Git::SVN::read_all_remotes();
512 foreach my $repo_id (sort keys %$remotes) {
513 if ($remotes->{$repo_id}->{url}) {
514 Git::SVN::fetch_all($repo_id, $remotes);
515 }
516 }
517 }
518
519 # this command is special because it requires no metadata
520 sub cmd_commit_diff {
521 my ($ta, $tb, $url) = @_;
522 my $usage = "Usage: $0 commit-diff -r<revision> ".
523 "<tree-ish> <tree-ish> [<URL>]\n";
524 fatal($usage) if (!defined $ta || !defined $tb);
525 my $svn_path;
526 if (!defined $url) {
527 my $gs = eval { Git::SVN->new };
528 if (!$gs) {
529 fatal("Needed URL or usable git-svn --id in ",
530 "the command-line\n", $usage);
531 }
532 $url = $gs->{url};
533 $svn_path = $gs->{path};
534 }
535 unless (defined $_revision) {
536 fatal("-r|--revision is a required argument\n", $usage);
537 }
538 if (defined $_message && defined $_file) {
539 fatal("Both --message/-m and --file/-F specified ",
540 "for the commit message.\n",
541 "I have no idea what you mean\n");
542 }
543 if (defined $_file) {
544 $_message = file_to_s($_file);
545 } else {
546 $_message ||= get_commit_entry($tb)->{log};
547 }
548 my $ra ||= Git::SVN::Ra->new($url);
549 $svn_path ||= $ra->{svn_path};
550 my $r = $_revision;
551 if ($r eq 'HEAD') {
552 $r = $ra->get_latest_revnum;
553 } elsif ($r !~ /^\d+$/) {
554 die "revision argument: $r not understood by git-svn\n";
555 }
556 my %ed_opts = ( r => $r,
557 log => $_message,
558 ra => $ra,
559 tree_a => $ta,
560 tree_b => $tb,
561 editor_cb => sub { print "Committed r$_[0]\n" },
562 svn_path => $svn_path );
563 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
564 print "No changes\n$ta == $tb\n";
565 }
566 }
567
568 ########################### utility functions #########################
569
570 sub rebase_cmd {
571 my @cmd = qw/rebase/;
572 push @cmd, '-v' if $_verbose;
573 push @cmd, qw/--merge/ if $_merge;
574 push @cmd, "--strategy=$_strategy" if $_strategy;
575 @cmd;
576 }
577
578 sub post_fetch_checkout {
579 return if $_no_checkout;
580 my $gs = $Git::SVN::_head or return;
581 return if verify_ref('refs/heads/master^0');
582
583 my $valid_head = verify_ref('HEAD^0');
584 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
585 return if ($valid_head || !verify_ref('HEAD^0'));
586
587 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
588 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
589 return if -f $index;
590
591 chomp(my $bare = `git config --bool --get core.bare`);
592 return if $bare eq 'true';
593 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
594 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
595 print STDERR "Checked out HEAD:\n ",
596 $gs->full_url, " r", $gs->last_rev, "\n";
597 }
598
599 sub complete_svn_url {
600 my ($url, $path) = @_;
601 $path =~ s#/+$##;
602 if ($path !~ m#^[a-z\+]+://#) {
603 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
604 fatal("E: '$path' is not a complete URL ",
605 "and a separate URL is not specified\n");
606 }
607 return ($url, $path);
608 }
609 return ($path, '');
610 }
611
612 sub complete_url_ls_init {
613 my ($ra, $repo_path, $switch, $pfx) = @_;
614 unless ($repo_path) {
615 print STDERR "W: $switch not specified\n";
616 return;
617 }
618 $repo_path =~ s#/+$##;
619 if ($repo_path =~ m#^[a-z\+]+://#) {
620 $ra = Git::SVN::Ra->new($repo_path);
621 $repo_path = '';
622 } else {
623 $repo_path =~ s#^/+##;
624 unless ($ra) {
625 fatal("E: '$repo_path' is not a complete URL ",
626 "and a separate URL is not specified\n");
627 }
628 }
629 my $url = $ra->{url};
630 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
631 my $k = "svn-remote.$gs->{repo_id}.url";
632 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
633 if ($orig_url && ($orig_url ne $gs->{url})) {
634 die "$k already set: $orig_url\n",
635 "wanted to set to: $gs->{url}\n";
636 }
637 command_oneline('config', $k, $gs->{url}) unless $orig_url;
638 my $remote_path = "$ra->{svn_path}/$repo_path/*";
639 $remote_path =~ s#/+#/#g;
640 $remote_path =~ s#^/##g;
641 my ($n) = ($switch =~ /^--(\w+)/);
642 if (length $pfx && $pfx !~ m#/$#) {
643 die "--prefix='$pfx' must have a trailing slash '/'\n";
644 }
645 command_noisy('config', "svn-remote.$gs->{repo_id}.$n",
646 "$remote_path:refs/remotes/$pfx*");
647 }
648
649 sub verify_ref {
650 my ($ref) = @_;
651 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
652 { STDERR => 0 }); };
653 }
654
655 sub get_tree_from_treeish {
656 my ($treeish) = @_;
657 # $treeish can be a symbolic ref, too:
658 my $type = command_oneline(qw/cat-file -t/, $treeish);
659 my $expected;
660 while ($type eq 'tag') {
661 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
662 }
663 if ($type eq 'commit') {
664 $expected = (grep /^tree /, command(qw/cat-file commit/,
665 $treeish))[0];
666 ($expected) = ($expected =~ /^tree ($sha1)$/o);
667 die "Unable to get tree from $treeish\n" unless $expected;
668 } elsif ($type eq 'tree') {
669 $expected = $treeish;
670 } else {
671 die "$treeish is a $type, expected tree, tag or commit\n";
672 }
673 return $expected;
674 }
675
676 sub get_commit_entry {
677 my ($treeish) = shift;
678 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
679 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
680 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
681 open my $log_fh, '>', $commit_editmsg or croak $!;
682
683 my $type = command_oneline(qw/cat-file -t/, $treeish);
684 if ($type eq 'commit' || $type eq 'tag') {
685 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
686 $type, $treeish);
687 my $in_msg = 0;
688 while (<$msg_fh>) {
689 if (!$in_msg) {
690 $in_msg = 1 if (/^\s*$/);
691 } elsif (/^git-svn-id: /) {
692 # skip this for now, we regenerate the
693 # correct one on re-fetch anyways
694 # TODO: set *:merge properties or like...
695 } else {
696 print $log_fh $_ or croak $!;
697 }
698 }
699 command_close_pipe($msg_fh, $ctx);
700 }
701 close $log_fh or croak $!;
702
703 if ($_edit || ($type eq 'tree')) {
704 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
705 # TODO: strip out spaces, comments, like git-commit.sh
706 system($editor, $commit_editmsg);
707 }
708 rename $commit_editmsg, $commit_msg or croak $!;
709 open $log_fh, '<', $commit_msg or croak $!;
710 { local $/; chomp($log_entry{log} = <$log_fh>); }
711 close $log_fh or croak $!;
712 unlink $commit_msg;
713 \%log_entry;
714 }
715
716 sub s_to_file {
717 my ($str, $file, $mode) = @_;
718 open my $fd,'>',$file or croak $!;
719 print $fd $str,"\n" or croak $!;
720 close $fd or croak $!;
721 chmod ($mode &~ umask, $file) if (defined $mode);
722 }
723
724 sub file_to_s {
725 my $file = shift;
726 open my $fd,'<',$file or croak "$!: file: $file\n";
727 local $/;
728 my $ret = <$fd>;
729 close $fd or croak $!;
730 $ret =~ s/\s*$//s;
731 return $ret;
732 }
733
734 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
735 sub load_authors {
736 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
737 my $log = $cmd eq 'log';
738 while (<$authors>) {
739 chomp;
740 next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
741 my ($user, $name, $email) = ($1, $2, $3);
742 if ($log) {
743 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
744 } else {
745 $users{$user} = [$name, $email];
746 }
747 }
748 close $authors or croak $!;
749 }
750
751 # convert GetOpt::Long specs for use by git-config
752 sub read_repo_config {
753 return unless -d $ENV{GIT_DIR};
754 my $opts = shift;
755 my @config_only;
756 foreach my $o (keys %$opts) {
757 # if we have mixedCase and a long option-only, then
758 # it's a config-only variable that we don't need for
759 # the command-line.
760 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
761 my $v = $opts->{$o};
762 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
763 $key =~ s/-//g;
764 my $arg = 'git-config';
765 $arg .= ' --int' if ($o =~ /[:=]i$/);
766 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
767 if (ref $v eq 'ARRAY') {
768 chomp(my @tmp = `$arg --get-all svn.$key`);
769 @$v = @tmp if @tmp;
770 } else {
771 chomp(my $tmp = `$arg --get svn.$key`);
772 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
773 $$v = $tmp;
774 }
775 }
776 }
777 delete @$opts{@config_only} if @config_only;
778 }
779
780 sub extract_metadata {
781 my $id = shift or return (undef, undef, undef);
782 my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
783 \s([a-f\d\-]+)$/x);
784 if (!defined $rev || !$uuid || !$url) {
785 # some of the original repositories I made had
786 # identifiers like this:
787 ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
788 }
789 return ($url, $rev, $uuid);
790 }
791
792 sub cmt_metadata {
793 return extract_metadata((grep(/^git-svn-id: /,
794 command(qw/cat-file commit/, shift)))[-1]);
795 }
796
797 sub working_head_info {
798 my ($head, $refs) = @_;
799 my ($fh, $ctx) = command_output_pipe('rev-list', $head);
800 while (my $hash = <$fh>) {
801 chomp($hash);
802 my ($url, $rev, $uuid) = cmt_metadata($hash);
803 if (defined $url && defined $rev) {
804 if (my $gs = Git::SVN->find_by_url($url)) {
805 my $c = $gs->rev_db_get($rev);
806 if ($c && $c eq $hash) {
807 close $fh; # break the pipe
808 return ($url, $rev, $uuid, $gs);
809 }
810 }
811 }
812 unshift @$refs, $hash if $refs;
813 }
814 command_close_pipe($fh, $ctx);
815 (undef, undef, undef, undef);
816 }
817
818 package Git::SVN;
819 use strict;
820 use warnings;
821 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
822 $_repack $_repack_flags $_use_svm_props $_head
823 $_use_svnsync_props $no_reuse_existing/;
824 use Carp qw/croak/;
825 use File::Path qw/mkpath/;
826 use File::Copy qw/copy/;
827 use IPC::Open3;
828
829 my $_repack_nr;
830 # properties that we do not log:
831 my %SKIP_PROP;
832 BEGIN {
833 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
834 svn:special svn:executable
835 svn:entry:committed-rev
836 svn:entry:last-author
837 svn:entry:uuid
838 svn:entry:committed-date/;
839
840 # some options are read globally, but can be overridden locally
841 # per [svn-remote "..."] section. Command-line options will *NOT*
842 # override options set in an [svn-remote "..."] section
843 my $e;
844 foreach (qw/follow_parent no_metadata use_svm_props
845 use_svnsync_props/) {
846 my $key = $_;
847 $key =~ tr/_//d;
848 $e .= "sub $_ {
849 my (\$self) = \@_;
850 return \$self->{-$_} if exists \$self->{-$_};
851 my \$k = \"svn-remote.\$self->{repo_id}\.$key\";
852 eval { command_oneline(qw/config --get/, \$k) };
853 if (\$@) {
854 \$self->{-$_} = \$Git::SVN::_$_;
855 } else {
856 my \$v = command_oneline(qw/config --bool/,\$k);
857 \$self->{-$_} = \$v eq 'false' ? 0 : 1;
858 }
859 return \$self->{-$_} }\n";
860 }
861 $e .= "1;\n";
862 eval $e or die $@;
863 }
864
865 my %LOCKFILES;
866 END { unlink keys %LOCKFILES if %LOCKFILES }
867
868 sub resolve_local_globs {
869 my ($url, $fetch, $glob_spec) = @_;
870 return unless defined $glob_spec;
871 my $ref = $glob_spec->{ref};
872 my $path = $glob_spec->{path};
873 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
874 next unless m#^refs/remotes/$ref->{regex}$#;
875 my $p = $1;
876 my $pathname = $path->full_path($p);
877 my $refname = $ref->full_path($p);
878 if (my $existing = $fetch->{$pathname}) {
879 if ($existing ne $refname) {
880 die "Refspec conflict:\n",
881 "existing: refs/remotes/$existing\n",
882 " globbed: refs/remotes/$refname\n";
883 }
884 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
885 $u =~ s!^\Q$url\E(/|$)!! or die
886 "refs/remotes/$refname: '$url' not found in '$u'\n";
887 if ($pathname ne $u) {
888 warn "W: Refspec glob conflict ",
889 "(ref: refs/remotes/$refname):\n",
890 "expected path: $pathname\n",
891 " real path: $u\n",
892 "Continuing ahead with $u\n";
893 next;
894 }
895 } else {
896 $fetch->{$pathname} = $refname;
897 }
898 }
899 }
900
901 sub parse_revision_argument {
902 my ($base, $head) = @_;
903 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
904 return ($base, $head);
905 }
906 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
907 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
908 return ($head, $head) if ($::_revision eq 'HEAD');
909 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
910 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
911 die "revision argument: $::_revision not understood by git-svn\n";
912 }
913
914 sub fetch_all {
915 my ($repo_id, $remotes) = @_;
916 if (ref $repo_id) {
917 my $gs = $repo_id;
918 $repo_id = undef;
919 $repo_id = $gs->{repo_id};
920 }
921 $remotes ||= read_all_remotes();
922 my $remote = $remotes->{$repo_id} or
923 die "[svn-remote \"$repo_id\"] unknown\n";
924 my $fetch = $remote->{fetch};
925 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
926 my (@gs, @globs);
927 my $ra = Git::SVN::Ra->new($url);
928 my $uuid = $ra->get_uuid;
929 my $head = $ra->get_latest_revnum;
930 my $base = defined $fetch ? $head : 0;
931
932 # read the max revs for wildcard expansion (branches/*, tags/*)
933 foreach my $t (qw/branches tags/) {
934 defined $remote->{$t} or next;
935 push @globs, $remote->{$t};
936 my $max_rev = eval { tmp_config(qw/--int --get/,
937 "svn-remote.$repo_id.${t}-maxRev") };
938 if (defined $max_rev && ($max_rev < $base)) {
939 $base = $max_rev;
940 } elsif (!defined $max_rev) {
941 $base = 0;
942 }
943 }
944
945 if ($fetch) {
946 foreach my $p (sort keys %$fetch) {
947 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
948 my $lr = $gs->rev_db_max;
949 if (defined $lr) {
950 $base = $lr if ($lr < $base);
951 }
952 push @gs, $gs;
953 }
954 }
955
956 ($base, $head) = parse_revision_argument($base, $head);
957 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
958 }
959
960 sub read_all_remotes {
961 my $r = {};
962 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
963 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
964 $r->{$1}->{fetch}->{$2} = $3;
965 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
966 $r->{$1}->{url} = $2;
967 } elsif (m!^(.+)\.(branches|tags)=
968 (.*):refs/remotes/(.+)\s*$/!x) {
969 my ($p, $g) = ($3, $4);
970 my $rs = $r->{$1}->{$2} = {
971 t => $2,
972 remote => $1,
973 path => Git::SVN::GlobSpec->new($p),
974 ref => Git::SVN::GlobSpec->new($g) };
975 if (length($rs->{ref}->{right}) != 0) {
976 die "The '*' glob character must be the last ",
977 "character of '$g'\n";
978 }
979 }
980 }
981 $r;
982 }
983
984 sub init_vars {
985 if (defined $_repack) {
986 $_repack = 1000 if ($_repack <= 0);
987 $_repack_nr = $_repack;
988 $_repack_flags ||= '-d';
989 }
990 }
991
992 sub verify_remotes_sanity {
993 return unless -d $ENV{GIT_DIR};
994 my %seen;
995 foreach (command(qw/config -l/)) {
996 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
997 if ($seen{$1}) {
998 die "Remote ref refs/remote/$1 is tracked by",
999 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1000 "Please resolve this ambiguity in ",
1001 "your git configuration file before ",
1002 "continuing\n";
1003 }
1004 $seen{$1} = $_;
1005 }
1006 }
1007 }
1008
1009 # we allow more chars than remotes2config.sh...
1010 sub sanitize_remote_name {
1011 my ($name) = @_;
1012 $name =~ tr{A-Za-z0-9:,/+-}{.}c;
1013 $name;
1014 }
1015
1016 sub find_existing_remote {
1017 my ($url, $remotes) = @_;
1018 return undef if $no_reuse_existing;
1019 my $existing;
1020 foreach my $repo_id (keys %$remotes) {
1021 my $u = $remotes->{$repo_id}->{url} or next;
1022 next if $u ne $url;
1023 $existing = $repo_id;
1024 last;
1025 }
1026 $existing;
1027 }
1028
1029 sub init_remote_config {
1030 my ($self, $url, $no_write) = @_;
1031 $url =~ s!/+$!!; # strip trailing slash
1032 my $r = read_all_remotes();
1033 my $existing = find_existing_remote($url, $r);
1034 if ($existing) {
1035 unless ($no_write) {
1036 print STDERR "Using existing ",
1037 "[svn-remote \"$existing\"]\n";
1038 }
1039 $self->{repo_id} = $existing;
1040 } else {
1041 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1042 $existing = find_existing_remote($min_url, $r);
1043 if ($existing) {
1044 unless ($no_write) {
1045 print STDERR "Using existing ",
1046 "[svn-remote \"$existing\"]\n";
1047 }
1048 $self->{repo_id} = $existing;
1049 }
1050 if ($min_url ne $url) {
1051 unless ($no_write) {
1052 print STDERR "Using higher level of URL: ",
1053 "$url => $min_url\n";
1054 }
1055 my $old_path = $self->{path};
1056 $self->{path} = $url;
1057 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1058 if (length $old_path) {
1059 $self->{path} .= "/$old_path";
1060 }
1061 $url = $min_url;
1062 }
1063 }
1064 my $orig_url;
1065 if (!$existing) {
1066 # verify that we aren't overwriting anything:
1067 $orig_url = eval {
1068 command_oneline('config', '--get',
1069 "svn-remote.$self->{repo_id}.url")
1070 };
1071 if ($orig_url && ($orig_url ne $url)) {
1072 die "svn-remote.$self->{repo_id}.url already set: ",
1073 "$orig_url\nwanted to set to: $url\n";
1074 }
1075 }
1076 my ($xrepo_id, $xpath) = find_ref($self->refname);
1077 if (defined $xpath) {
1078 die "svn-remote.$xrepo_id.fetch already set to track ",
1079 "$xpath:refs/remotes/", $self->refname, "\n";
1080 }
1081 unless ($no_write) {
1082 command_noisy('config',
1083 "svn-remote.$self->{repo_id}.url", $url);
1084 command_noisy('config', '--add',
1085 "svn-remote.$self->{repo_id}.fetch",
1086 "$self->{path}:".$self->refname);
1087 }
1088 $self->{url} = $url;
1089 }
1090
1091 sub find_by_url { # repos_root and, path are optional
1092 my ($class, $full_url, $repos_root, $path) = @_;
1093
1094 return undef unless defined $full_url;
1095 remove_username($full_url);
1096 remove_username($repos_root) if defined $repos_root;
1097 my $remotes = read_all_remotes();
1098 if (defined $full_url && defined $repos_root && !defined $path) {
1099 $path = $full_url;
1100 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1101 }
1102 foreach my $repo_id (keys %$remotes) {
1103 my $u = $remotes->{$repo_id}->{url} or next;
1104 remove_username($u);
1105 next if defined $repos_root && $repos_root ne $u;
1106
1107 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1108 foreach (qw/branches tags/) {
1109 resolve_local_globs($u, $fetch,
1110 $remotes->{$repo_id}->{$_});
1111 }
1112 my $p = $path;
1113 unless (defined $p) {
1114 $p = $full_url;
1115 $p =~ s#^\Q$u\E(?:/|$)## or next;
1116 }
1117 foreach my $f (keys %$fetch) {
1118 next if $f ne $p;
1119 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1120 }
1121 }
1122 undef;
1123 }
1124
1125 sub init {
1126 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1127 my $self = _new($class, $repo_id, $ref_id, $path);
1128 if (defined $url) {
1129 $self->init_remote_config($url, $no_write);
1130 }
1131 $self;
1132 }
1133
1134 sub find_ref {
1135 my ($ref_id) = @_;
1136 foreach (command(qw/config -l/)) {
1137 next unless m!^svn-remote\.(.+)\.fetch=
1138 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1139 my ($repo_id, $path, $ref) = ($1, $2, $3);
1140 if ($ref eq $ref_id) {
1141 $path = '' if ($path =~ m#^\./?#);
1142 return ($repo_id, $path);
1143 }
1144 }
1145 (undef, undef, undef);
1146 }
1147
1148 sub new {
1149 my ($class, $ref_id, $repo_id, $path) = @_;
1150 if (defined $ref_id && !defined $repo_id && !defined $path) {
1151 ($repo_id, $path) = find_ref($ref_id);
1152 if (!defined $repo_id) {
1153 die "Could not find a \"svn-remote.*.fetch\" key ",
1154 "in the repository configuration matching: ",
1155 "refs/remotes/$ref_id\n";
1156 }
1157 }
1158 my $self = _new($class, $repo_id, $ref_id, $path);
1159 if (!defined $self->{path} || !length $self->{path}) {
1160 my $fetch = command_oneline('config', '--get',
1161 "svn-remote.$repo_id.fetch",
1162 ":refs/remotes/$ref_id\$") or
1163 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1164 "\":refs/remotes/$ref_id\$\" in config\n";
1165 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1166 }
1167 $self->{url} = command_oneline('config', '--get',
1168 "svn-remote.$repo_id.url") or
1169 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1170 $self->rebuild;
1171 $self;
1172 }
1173
1174 sub refname { "refs/remotes/$_[0]->{ref_id}" }
1175
1176 sub svm_uuid {
1177 my ($self) = @_;
1178 return $self->{svm}->{uuid} if $self->svm;
1179 $self->ra;
1180 unless ($self->{svm}) {
1181 die "SVM UUID not cached, and reading remotely failed\n";
1182 }
1183 $self->{svm}->{uuid};
1184 }
1185
1186 sub svm {
1187 my ($self) = @_;
1188 return $self->{svm} if $self->{svm};
1189 my $svm;
1190 # see if we have it in our config, first:
1191 eval {
1192 my $section = "svn-remote.$self->{repo_id}";
1193 $svm = {
1194 source => tmp_config('--get', "$section.svm-source"),
1195 uuid => tmp_config('--get', "$section.svm-uuid"),
1196 replace => tmp_config('--get', "$section.svm-replace"),
1197 }
1198 };
1199 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1200 $self->{svm} = $svm;
1201 }
1202 $self->{svm};
1203 }
1204
1205 sub _set_svm_vars {
1206 my ($self, $ra) = @_;
1207 return $ra if $self->svm;
1208
1209 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1210 "(svm:source, svm:uuid) ",
1211 "from the following URLs:\n" );
1212 sub read_svm_props {
1213 my ($self, $ra, $path, $r) = @_;
1214 my $props = ($ra->get_dir($path, $r))[2];
1215 my $src = $props->{'svm:source'};
1216 my $uuid = $props->{'svm:uuid'};
1217 return undef if (!$src || !$uuid);
1218
1219 chomp($src, $uuid);
1220
1221 $uuid =~ m{^[0-9a-f\-]{30,}$}
1222 or die "doesn't look right - svm:uuid is '$uuid'\n";
1223
1224 # the '!' is used to mark the repos_root!/relative/path
1225 $src =~ s{/?!/?}{/};
1226 $src =~ s{/+$}{}; # no trailing slashes please
1227 # username is of no interest
1228 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1229
1230 my $replace = $ra->{url};
1231 $replace .= "/$path" if length $path;
1232
1233 my $section = "svn-remote.$self->{repo_id}";
1234 tmp_config("$section.svm-source", $src);
1235 tmp_config("$section.svm-replace", $replace);
1236 tmp_config("$section.svm-uuid", $uuid);
1237 $self->{svm} = {
1238 source => $src,
1239 uuid => $uuid,
1240 replace => $replace
1241 };
1242 }
1243
1244 my $r = $ra->get_latest_revnum;
1245 my $path = $self->{path};
1246 my %tried;
1247 while (length $path) {
1248 unless ($tried{"$self->{url}/$path"}) {
1249 return $ra if $self->read_svm_props($ra, $path, $r);
1250 $tried{"$self->{url}/$path"} = 1;
1251 }
1252 $path =~ s#/?[^/]+$##;
1253 }
1254 die "Path: '$path' should be ''\n" if $path ne '';
1255 return $ra if $self->read_svm_props($ra, $path, $r);
1256 $tried{"$self->{url}/$path"} = 1;
1257
1258 if ($ra->{repos_root} eq $self->{url}) {
1259 die @err, (map { " $_\n" } keys %tried), "\n";
1260 }
1261
1262 # nope, make sure we're connected to the repository root:
1263 my $ok;
1264 my @tried_b;
1265 $path = $ra->{svn_path};
1266 $ra = Git::SVN::Ra->new($ra->{repos_root});
1267 while (length $path) {
1268 unless ($tried{"$ra->{url}/$path"}) {
1269 $ok = $self->read_svm_props($ra, $path, $r);
1270 last if $ok;
1271 $tried{"$ra->{url}/$path"} = 1;
1272 }
1273 $path =~ s#/?[^/]+$##;
1274 }
1275 die "Path: '$path' should be ''\n" if $path ne '';
1276 $ok ||= $self->read_svm_props($ra, $path, $r);
1277 $tried{"$ra->{url}/$path"} = 1;
1278 if (!$ok) {
1279 die @err, (map { " $_\n" } keys %tried), "\n";
1280 }
1281 Git::SVN::Ra->new($self->{url});
1282 }
1283
1284 sub svnsync {
1285 my ($self) = @_;
1286 return $self->{svnsync} if $self->{svnsync};
1287
1288 if ($self->no_metadata) {
1289 die "Can't have both 'noMetadata' and ",
1290 "'useSvnsyncProps' options set!\n";
1291 }
1292 if ($self->rewrite_root) {
1293 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1294 "options set!\n";
1295 }
1296
1297 my $svnsync;
1298 # see if we have it in our config, first:
1299 eval {
1300 my $section = "svn-remote.$self->{repo_id}";
1301 $svnsync = {
1302 url => tmp_config('--get', "$section.svnsync-url"),
1303 uuid => tmp_config('--get', "$section.svnsync-uuid"),
1304 }
1305 };
1306 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1307 return $self->{svnsync} = $svnsync;
1308 }
1309
1310 my $err = "useSvnsyncProps set, but failed to read " .
1311 "svnsync property: svn:sync-from-";
1312 my $rp = $self->ra->rev_proplist(0);
1313
1314 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1315 $url =~ m{^[a-z\+]+://} or
1316 die "doesn't look right - svn:sync-from-url is '$url'\n";
1317
1318 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1319 $uuid =~ m{^[0-9a-f\-]{30,}$} or
1320 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1321
1322 my $section = "svn-remote.$self->{repo_id}";
1323 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1324 tmp_config('--add', "$section.svnsync-url", $url);
1325 return $self->{svnsync} = { url => $url, uuid => $uuid };
1326 }
1327
1328 # this allows us to memoize our SVN::Ra UUID locally and avoid a
1329 # remote lookup (useful for 'git svn log').
1330 sub ra_uuid {
1331 my ($self) = @_;
1332 unless ($self->{ra_uuid}) {
1333 my $key = "svn-remote.$self->{repo_id}.uuid";
1334 my $uuid = eval { tmp_config('--get', $key) };
1335 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1336 $self->{ra_uuid} = $uuid;
1337 } else {
1338 die "ra_uuid called without URL\n" unless $self->{url};
1339 $self->{ra_uuid} = $self->ra->get_uuid;
1340 tmp_config('--add', $key, $self->{ra_uuid});
1341 }
1342 }
1343 $self->{ra_uuid};
1344 }
1345
1346 sub ra {
1347 my ($self) = shift;
1348 my $ra = Git::SVN::Ra->new($self->{url});
1349 if ($self->use_svm_props && !$self->{svm}) {
1350 if ($self->no_metadata) {
1351 die "Can't have both 'noMetadata' and ",
1352 "'useSvmProps' options set!\n";
1353 } elsif ($self->use_svnsync_props) {
1354 die "Can't have both 'useSvnsyncProps' and ",
1355 "'useSvmProps' options set!\n";
1356 }
1357 $ra = $self->_set_svm_vars($ra);
1358 $self->{-want_revprops} = 1;
1359 }
1360 $ra;
1361 }
1362
1363 sub rel_path {
1364 my ($self) = @_;
1365 my $repos_root = $self->ra->{repos_root};
1366 return $self->{path} if ($self->{url} eq $repos_root);
1367 my $url = $self->{url} .
1368 (length $self->{path} ? "/$self->{path}" : $self->{path});
1369 $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
1370 $url;
1371 }
1372
1373 sub traverse_ignore {
1374 my ($self, $fh, $path, $r) = @_;
1375 $path =~ s#^/+##g;
1376 my $ra = $self->ra;
1377 my ($dirent, undef, $props) = $ra->get_dir($path, $r);
1378 my $p = $path;
1379 $p =~ s#^\Q$self->{path}\E(/|$)##;
1380 print $fh length $p ? "\n# $p\n" : "\n# /\n";
1381 if (my $s = $props->{'svn:ignore'}) {
1382 $s =~ s/[\r\n]+/\n/g;
1383 chomp $s;
1384 if (length $p == 0) {
1385 $s =~ s#\n#\n/$p#g;
1386 print $fh "/$s\n";
1387 } else {
1388 $s =~ s#\n#\n/$p/#g;
1389 print $fh "/$p/$s\n";
1390 }
1391 }
1392 foreach (sort keys %$dirent) {
1393 next if $dirent->{$_}->kind != $SVN::Node::dir;
1394 $self->traverse_ignore($fh, "$path/$_", $r);
1395 }
1396 }
1397
1398 sub last_rev { ($_[0]->last_rev_commit)[0] }
1399 sub last_commit { ($_[0]->last_rev_commit)[1] }
1400
1401 # returns the newest SVN revision number and newest commit SHA1
1402 sub last_rev_commit {
1403 my ($self) = @_;
1404 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1405 return ($self->{last_rev}, $self->{last_commit});
1406 }
1407 my $c = ::verify_ref($self->refname.'^0');
1408 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1409 my $rev = (::cmt_metadata($c))[1];
1410 if (defined $rev) {
1411 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1412 return ($rev, $c);
1413 }
1414 }
1415 my $db_path = $self->db_path;
1416 unless (-e $db_path) {
1417 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
1418 return (undef, undef);
1419 }
1420 my $offset = -41; # from tail
1421 my $rl;
1422 open my $fh, '<', $db_path or croak "$db_path not readable: $!\n";
1423 sysseek($fh, $offset, 2); # don't care for errors
1424 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1425 chomp $rl;
1426 while (('0' x40) eq $rl && sysseek($fh, 0, 1) != 0) {
1427 $offset -= 41;
1428 sysseek($fh, $offset, 2); # don't care for errors
1429 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1430 chomp $rl;
1431 }
1432 if ($c && $c ne $rl) {
1433 die "$db_path and ", $self->refname,
1434 " inconsistent!:\n$c != $rl\n";
1435 }
1436 my $rev = sysseek($fh, 0, 1) or croak $!;
1437 $rev = ($rev - 41) / 41;
1438 close $fh or croak $!;
1439 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1440 return ($rev, $c);
1441 }
1442
1443 sub get_fetch_range {
1444 my ($self, $min, $max) = @_;
1445 $max ||= $self->ra->get_latest_revnum;
1446 $min ||= $self->rev_db_max;
1447 (++$min, $max);
1448 }
1449
1450 sub tmp_config {
1451 my (@args) = @_;
1452 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
1453 my $config = "$ENV{GIT_DIR}/svn/.metadata";
1454 if (-e $old_def_config && ! -e $config) {
1455 rename $old_def_config, $config or
1456 die "Failed rename $old_def_config => $config: $!\n";
1457 }
1458 my $old_config = $ENV{GIT_CONFIG};
1459 $ENV{GIT_CONFIG} = $config;
1460 $@ = undef;
1461 my @ret = eval {
1462 unless (-f $config) {
1463 mkfile($config);
1464 open my $fh, '>', $config or
1465 die "Can't open $config: $!\n";
1466 print $fh "; This file is used internally by ",
1467 "git-svn\n" or die
1468 "Couldn't write to $config: $!\n";
1469 print $fh "; You should not have to edit it\n" or
1470 die "Couldn't write to $config: $!\n";
1471 close $fh or die "Couldn't close $config: $!\n";
1472 }
1473 command('config', @args);
1474 };
1475 my $err = $@;
1476 if (defined $old_config) {
1477 $ENV{GIT_CONFIG} = $old_config;
1478 } else {
1479 delete $ENV{GIT_CONFIG};
1480 }
1481 die $err if $err;
1482 wantarray ? @ret : $ret[0];
1483 }
1484
1485 sub tmp_index_do {
1486 my ($self, $sub) = @_;
1487 my $old_index = $ENV{GIT_INDEX_FILE};
1488 $ENV{GIT_INDEX_FILE} = $self->{index};
1489 $@ = undef;
1490 my @ret = eval {
1491 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
1492 mkpath([$dir]) unless -d $dir;
1493 &$sub;
1494 };
1495 my $err = $@;
1496 if (defined $old_index) {
1497 $ENV{GIT_INDEX_FILE} = $old_index;
1498 } else {
1499 delete $ENV{GIT_INDEX_FILE};
1500 }
1501 die $err if $err;
1502 wantarray ? @ret : $ret[0];
1503 }
1504
1505 sub assert_index_clean {
1506 my ($self, $treeish) = @_;
1507
1508 $self->tmp_index_do(sub {
1509 command_noisy('read-tree', $treeish) unless -e $self->{index};
1510 my $x = command_oneline('write-tree');
1511 my ($y) = (command(qw/cat-file commit/, $treeish) =~
1512 /^tree ($::sha1)/mo);
1513 return if $y eq $x;
1514
1515 warn "Index mismatch: $y != $x\nrereading $treeish\n";
1516 unlink $self->{index} or die "unlink $self->{index}: $!\n";
1517 command_noisy('read-tree', $treeish);
1518 $x = command_oneline('write-tree');
1519 if ($y ne $x) {
1520 ::fatal "trees ($treeish) $y != $x\n",
1521 "Something is seriously wrong...\n";
1522 }
1523 });
1524 }
1525
1526 sub get_commit_parents {
1527 my ($self, $log_entry) = @_;
1528 my (%seen, @ret, @tmp);
1529 # legacy support for 'set-tree'; this is only used by set_tree_cb:
1530 if (my $ip = $self->{inject_parents}) {
1531 if (my $commit = delete $ip->{$log_entry->{revision}}) {
1532 push @tmp, $commit;
1533 }
1534 }
1535 if (my $cur = ::verify_ref($self->refname.'^0')) {
1536 push @tmp, $cur;
1537 }
1538 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
1539 while (my $p = shift @tmp) {
1540 next if $seen{$p};
1541 $seen{$p} = 1;
1542 push @ret, $p;
1543 # MAXPARENT is defined to 16 in commit-tree.c:
1544 last if @ret >= 16;
1545 }
1546 if (@tmp) {
1547 die "r$log_entry->{revision}: No room for parents:\n\t",
1548 join("\n\t", @tmp), "\n";
1549 }
1550 @ret;
1551 }
1552
1553 sub rewrite_root {
1554 my ($self) = @_;
1555 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
1556 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
1557 my $rwr = eval { command_oneline(qw/config --get/, $k) };
1558 if ($rwr) {
1559 $rwr =~ s#/+$##;
1560 if ($rwr !~ m#^[a-z\+]+://#) {
1561 die "$rwr is not a valid URL (key: $k)\n";
1562 }
1563 }
1564 $self->{-rewrite_root} = $rwr;
1565 }
1566
1567 sub metadata_url {
1568 my ($self) = @_;
1569 ($self->rewrite_root || $self->{url}) .
1570 (length $self->{path} ? '/' . $self->{path} : '');
1571 }
1572
1573 sub full_url {
1574 my ($self) = @_;
1575 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
1576 }
1577
1578 sub do_git_commit {
1579 my ($self, $log_entry) = @_;
1580 my $lr = $self->last_rev;
1581 if (defined $lr && $lr >= $log_entry->{revision}) {
1582 die "Last fetched revision of ", $self->refname,
1583 " was r$lr, but we are about to fetch: ",
1584 "r$log_entry->{revision}!\n";
1585 }
1586 if (my $c = $self->rev_db_get($log_entry->{revision})) {
1587 croak "$log_entry->{revision} = $c already exists! ",
1588 "Why are we refetching it?\n";
1589 }
1590 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $log_entry->{name};
1591 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} =
1592 $log_entry->{email};
1593 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
1594
1595 my $tree = $log_entry->{tree};
1596 if (!defined $tree) {
1597 $tree = $self->tmp_index_do(sub {
1598 command_oneline('write-tree') });
1599 }
1600 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
1601
1602 my @exec = ('git-commit-tree', $tree);
1603 foreach ($self->get_commit_parents($log_entry)) {
1604 push @exec, '-p', $_;
1605 }
1606 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1607 or croak $!;
1608 print $msg_fh $log_entry->{log} or croak $!;
1609 unless ($self->no_metadata) {
1610 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
1611 or croak $!;
1612 }
1613 $msg_fh->flush == 0 or croak $!;
1614 close $msg_fh or croak $!;
1615 chomp(my $commit = do { local $/; <$out_fh> });
1616 close $out_fh or croak $!;
1617 waitpid $pid, 0;
1618 croak $? if $?;
1619 if ($commit !~ /^$::sha1$/o) {
1620 die "Failed to commit, invalid sha1: $commit\n";
1621 }
1622
1623 $self->rev_db_set($log_entry->{revision}, $commit, 1);
1624
1625 $self->{last_rev} = $log_entry->{revision};
1626 $self->{last_commit} = $commit;
1627 print "r$log_entry->{revision}";
1628 if (defined $log_entry->{svm_revision}) {
1629 print " (\@$log_entry->{svm_revision})";
1630 $self->rev_db_set($log_entry->{svm_revision}, $commit,
1631 0, $self->svm_uuid);
1632 }
1633 print " = $commit ($self->{ref_id})\n";
1634 if (defined $_repack && (--$_repack_nr == 0)) {
1635 $_repack_nr = $_repack;
1636 # repack doesn't use any arguments with spaces in them, does it?
1637 print "Running git repack $_repack_flags ...\n";
1638 command_noisy('repack', split(/\s+/, $_repack_flags));
1639 print "Done repacking\n";
1640 }
1641 return $commit;
1642 }
1643
1644 sub match_paths {
1645 my ($self, $paths, $r) = @_;
1646 return 1 if $self->{path} eq '';
1647 if (my $path = $paths->{"/$self->{path}"}) {
1648 return ($path->{action} eq 'D') ? 0 : 1;
1649 }
1650 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
1651 if (grep /$self->{path_regex}/, keys %$paths) {
1652 return 1;
1653 }
1654 my $c = '';
1655 foreach (split m#/#, $self->{path}) {
1656 $c .= "/$_";
1657 next unless ($paths->{$c} &&
1658 ($paths->{$c}->{action} =~ /^[AR]$/));
1659 if ($self->ra->check_path($self->{path}, $r) ==
1660 $SVN::Node::dir) {
1661 return 1;
1662 }
1663 }
1664 return 0;
1665 }
1666
1667 sub find_parent_branch {
1668 my ($self, $paths, $rev) = @_;
1669 return undef unless $self->follow_parent;
1670 unless (defined $paths) {
1671 my $err_handler = $SVN::Error::handler;
1672 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
1673 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
1674 $paths =
1675 Git::SVN::Ra::dup_changed_paths($_[0]) });
1676 $SVN::Error::handler = $err_handler;
1677 }
1678 return undef unless defined $paths;
1679
1680 # look for a parent from another branch:
1681 my @b_path_components = split m#/#, $self->rel_path;
1682 my @a_path_components;
1683 my $i;
1684 while (@b_path_components) {
1685 $i = $paths->{'/'.join('/', @b_path_components)};
1686 last if $i && defined $i->{copyfrom_path};
1687 unshift(@a_path_components, pop(@b_path_components));
1688 }
1689 return undef unless defined $i && defined $i->{copyfrom_path};
1690 my $branch_from = $i->{copyfrom_path};
1691 if (@a_path_components) {
1692 print STDERR "branch_from: $branch_from => ";
1693 $branch_from .= '/'.join('/', @a_path_components);
1694 print STDERR $branch_from, "\n";
1695 }
1696 my $r = $i->{copyfrom_rev};
1697 my $repos_root = $self->ra->{repos_root};
1698 my $url = $self->ra->{url};
1699 my $new_url = $repos_root . $branch_from;
1700 print STDERR "Found possible branch point: ",
1701 "$new_url => ", $self->full_url, ", $r\n";
1702 $branch_from =~ s#^/##;
1703 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
1704 unless ($gs) {
1705 my $ref_id = $self->{ref_id};
1706 $ref_id =~ s/\@\d+$//;
1707 $ref_id .= "\@$r";
1708 # just grow a tail if we're not unique enough :x
1709 $ref_id .= '-' while find_ref($ref_id);
1710 print STDERR "Initializing parent: $ref_id\n";
1711 $gs = Git::SVN->init($new_url, '', $ref_id, $ref_id, 1);
1712 }
1713 my ($r0, $parent) = $gs->find_rev_before($r, 1);
1714 if (!defined $r0 || !defined $parent) {
1715 my ($base, $head) = parse_revision_argument(0, $r);
1716 if ($base <= $r) {
1717 $gs->fetch($base, $r);
1718 }
1719 ($r0, $parent) = $gs->last_rev_commit;
1720 }
1721 if (defined $r0 && defined $parent) {
1722 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
1723 my $ed;
1724 if ($self->ra->can_do_switch) {
1725 $self->assert_index_clean($parent);
1726 print STDERR "Following parent with do_switch\n";
1727 # do_switch works with svn/trunk >= r22312, but that
1728 # is not included with SVN 1.4.3 (the latest version
1729 # at the moment), so we can't rely on it
1730 $self->{last_commit} = $parent;
1731 $ed = SVN::Git::Fetcher->new($self);
1732 $gs->ra->gs_do_switch($r0, $rev, $gs,
1733 $self->full_url, $ed)
1734 or die "SVN connection failed somewhere...\n";
1735 } else {
1736 print STDERR "Following parent with do_update\n";
1737 $ed = SVN::Git::Fetcher->new($self);
1738 $self->ra->gs_do_update($rev, $rev, $self, $ed)
1739 or die "SVN connection failed somewhere...\n";
1740 }
1741 print STDERR "Successfully followed parent\n";
1742 return $self->make_log_entry($rev, [$parent], $ed);
1743 }
1744 return undef;
1745 }
1746
1747 sub do_fetch {
1748 my ($self, $paths, $rev) = @_;
1749 my $ed;
1750 my ($last_rev, @parents);
1751 if (my $lc = $self->last_commit) {
1752 # we can have a branch that was deleted, then re-added
1753 # under the same name but copied from another path, in
1754 # which case we'll have multiple parents (we don't
1755 # want to break the original ref, nor lose copypath info):
1756 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1757 push @{$log_entry->{parents}}, $lc;
1758 return $log_entry;
1759 }
1760 $ed = SVN::Git::Fetcher->new($self);
1761 $last_rev = $self->{last_rev};
1762 $ed->{c} = $lc;
1763 @parents = ($lc);
1764 } else {
1765 $last_rev = $rev;
1766 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1767 return $log_entry;
1768 }
1769 $ed = SVN::Git::Fetcher->new($self);
1770 }
1771 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
1772 die "SVN connection failed somewhere...\n";
1773 }
1774 $self->make_log_entry($rev, \@parents, $ed);
1775 }
1776
1777 sub get_untracked {
1778 my ($self, $ed) = @_;
1779 my @out;
1780 my $h = $ed->{empty};
1781 foreach (sort keys %$h) {
1782 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
1783 push @out, " $act: " . uri_encode($_);
1784 warn "W: $act: $_\n";
1785 }
1786 foreach my $t (qw/dir_prop file_prop/) {
1787 $h = $ed->{$t} or next;
1788 foreach my $path (sort keys %$h) {
1789 my $ppath = $path eq '' ? '.' : $path;
1790 foreach my $prop (sort keys %{$h->{$path}}) {
1791 next if $SKIP_PROP{$prop};
1792 my $v = $h->{$path}->{$prop};
1793 my $t_ppath_prop = "$t: " .
1794 uri_encode($ppath) . ' ' .
1795 uri_encode($prop);
1796 if (defined $v) {
1797 push @out, " +$t_ppath_prop " .
1798 uri_encode($v);
1799 } else {
1800 push @out, " -$t_ppath_prop";
1801 }
1802 }
1803 }
1804 }
1805 foreach my $t (qw/absent_file absent_directory/) {
1806 $h = $ed->{$t} or next;
1807 foreach my $parent (sort keys %$h) {
1808 foreach my $path (sort @{$h->{$parent}}) {
1809 push @out, " $t: " .
1810 uri_encode("$parent/$path");
1811 warn "W: $t: $parent/$path ",
1812 "Insufficient permissions?\n";
1813 }
1814 }
1815 }
1816 \@out;
1817 }
1818
1819 sub parse_svn_date {
1820 my $date = shift || return '+0000 1970-01-01 00:00:00';
1821 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
1822 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
1823 croak "Unable to parse date: $date\n";
1824 "+0000 $Y-$m-$d $H:$M:$S";
1825 }
1826
1827 sub check_author {
1828 my ($author) = @_;
1829 if (!defined $author || length $author == 0) {
1830 $author = '(no author)';
1831 }
1832 if (defined $::_authors && ! defined $::users{$author}) {
1833 die "Author: $author not defined in $::_authors file\n";
1834 }
1835 $author;
1836 }
1837
1838 sub make_log_entry {
1839 my ($self, $rev, $parents, $ed) = @_;
1840 my $untracked = $self->get_untracked($ed);
1841
1842 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
1843 print $un "r$rev\n" or croak $!;
1844 print $un $_, "\n" foreach @$untracked;
1845 my %log_entry = ( parents => $parents || [], revision => $rev,
1846 log => '');
1847
1848 my $headrev;
1849 my $logged = delete $self->{logged_rev_props};
1850 if (!$logged || $self->{-want_revprops}) {
1851 my $rp = $self->ra->rev_proplist($rev);
1852 foreach (sort keys %$rp) {
1853 my $v = $rp->{$_};
1854 if (/^svn:(author|date|log)$/) {
1855 $log_entry{$1} = $v;
1856 } elsif ($_ eq 'svm:headrev') {
1857 $headrev = $v;
1858 } else {
1859 print $un " rev_prop: ", uri_encode($_), ' ',
1860 uri_encode($v), "\n";
1861 }
1862 }
1863 } else {
1864 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
1865 }
1866 close $un or croak $!;
1867
1868 $log_entry{date} = parse_svn_date($log_entry{date});
1869 $log_entry{log} .= "\n";
1870 my $author = $log_entry{author} = check_author($log_entry{author});
1871 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
1872 : ($author, undef);
1873 if (defined $headrev && $self->use_svm_props) {
1874 if ($self->rewrite_root) {
1875 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
1876 "options set!\n";
1877 }
1878 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
1879 # we don't want "SVM: initializing mirror for junk" ...
1880 return undef if $r == 0;
1881 my $svm = $self->svm;
1882 if ($uuid ne $svm->{uuid}) {
1883 die "UUID mismatch on SVM path:\n",
1884 "expected: $svm->{uuid}\n",
1885 " got: $uuid\n";
1886 }
1887 my $full_url = $self->full_url;
1888 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
1889 die "Failed to replace '$svm->{replace}' with ",
1890 "'$svm->{source}' in $full_url\n";
1891 # throw away username for storing in records
1892 remove_username($full_url);
1893 $log_entry{metadata} = "$full_url\@$r $uuid";
1894 $log_entry{svm_revision} = $r;
1895 $email ||= "$author\@$uuid"
1896 } elsif ($self->use_svnsync_props) {
1897 my $full_url = $self->svnsync->{url};
1898 $full_url .= "/$self->{path}" if length $self->{path};
1899 remove_username($full_url);
1900 my $uuid = $self->svnsync->{uuid};
1901 $log_entry{metadata} = "$full_url\@$rev $uuid";
1902 $email ||= "$author\@$uuid"
1903 } else {
1904 my $url = $self->metadata_url;
1905 remove_username($url);
1906 $log_entry{metadata} = "$url\@$rev " .
1907 $self->ra->get_uuid;
1908 $email ||= "$author\@" . $self->ra->get_uuid;
1909 }
1910 $log_entry{name} = $name;
1911 $log_entry{email} = $email;
1912 \%log_entry;
1913 }
1914
1915 sub fetch {
1916 my ($self, $min_rev, $max_rev, @parents) = @_;
1917 my ($last_rev, $last_commit) = $self->last_rev_commit;
1918 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
1919 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
1920 }
1921
1922 sub set_tree_cb {
1923 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
1924 $self->{inject_parents} = { $rev => $tree };
1925 $self->fetch(undef, undef);
1926 }
1927
1928 sub set_tree {
1929 my ($self, $tree) = (shift, shift);
1930 my $log_entry = ::get_commit_entry($tree);
1931 unless ($self->{last_rev}) {
1932 fatal("Must have an existing revision to commit\n");
1933 }
1934 my %ed_opts = ( r => $self->{last_rev},
1935 log => $log_entry->{log},
1936 ra => $self->ra,
1937 tree_a => $self->{last_commit},
1938 tree_b => $tree,
1939 editor_cb => sub {
1940 $self->set_tree_cb($log_entry, $tree, @_) },
1941 svn_path => $self->{path} );
1942 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
1943 print "No changes\nr$self->{last_rev} = $tree\n";
1944 }
1945 }
1946
1947 sub rebuild {
1948 my ($self) = @_;
1949 my $db_path = $self->db_path;
1950 return if (-e $db_path && ! -z $db_path);
1951 return unless ::verify_ref($self->refname.'^0');
1952 if (-f $self->{db_root}) {
1953 rename $self->{db_root}, $db_path or die
1954 "rename $self->{db_root} => $db_path failed: $!\n";
1955 my ($dir, $base) = ($db_path =~ m#^(.*?)/?([^/]+)$#);
1956 symlink $base, $self->{db_root} or die
1957 "symlink $base => $self->{db_root} failed: $!\n";
1958 return;
1959 }
1960 print "Rebuilding $db_path ...\n";
1961 my ($rev_list, $ctx) = command_output_pipe("rev-list", $self->refname);
1962 my $latest;
1963 my $full_url = $self->full_url;
1964 remove_username($full_url);
1965 my $svn_uuid;
1966 while (<$rev_list>) {
1967 chomp;
1968 my $c = $_;
1969 die "Non-SHA1: $c\n" unless $c =~ /^$::sha1$/o;
1970 my ($url, $rev, $uuid) = ::cmt_metadata($c);
1971 remove_username($url);
1972
1973 # ignore merges (from set-tree)
1974 next if (!defined $rev || !$uuid);
1975
1976 # if we merged or otherwise started elsewhere, this is
1977 # how we break out of it
1978 if ((defined $svn_uuid && ($uuid ne $svn_uuid)) ||
1979 ($full_url && $url && ($url ne $full_url))) {
1980 next;
1981 }
1982 $latest ||= $rev;
1983 $svn_uuid ||= $uuid;
1984
1985 $self->rev_db_set($rev, $c);
1986 print "r$rev = $c\n";
1987 }
1988 command_close_pipe($rev_list, $ctx);
1989 print "Done rebuilding $db_path\n";
1990 }
1991
1992 # rev_db:
1993 # Tie::File seems to be prone to offset errors if revisions get sparse,
1994 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
1995 # one of my favorite modules is out :< Next up would be one of the DBM
1996 # modules, but I'm not sure which is most portable... So I'll just
1997 # go with something that's plain-text, but still capable of
1998 # being randomly accessed. So here's my ultra-simple fixed-width
1999 # database. All records are 40 characters + "\n", so it's easy to seek
2000 # to a revision: (41 * rev) is the byte offset.
2001 # A record of 40 0s denotes an empty revision.
2002 # And yes, it's still pretty fast (faster than Tie::File).
2003 # These files are disposable unless noMetadata or useSvmProps is set
2004
2005 sub _rev_db_set {
2006 my ($fh, $rev, $commit) = @_;
2007 my $offset = $rev * 41;
2008 # assume that append is the common case:
2009 seek $fh, 0, 2 or croak $!;
2010 my $pos = tell $fh;
2011 if ($pos < $offset) {
2012 for (1 .. (($offset - $pos) / 41)) {
2013 print $fh (('0' x 40),"\n") or croak $!;
2014 }
2015 }
2016 seek $fh, $offset, 0 or croak $!;
2017 print $fh $commit,"\n" or croak $!;
2018 }
2019
2020 sub mkfile {
2021 my ($path) = @_;
2022 unless (-e $path) {
2023 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2024 mkpath([$dir]) unless -d $dir;
2025 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2026 close $fh or die "Couldn't close (create) $path: $!\n";
2027 }
2028 }
2029
2030 sub rev_db_set {
2031 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2032 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2033 my $db = $self->db_path($uuid);
2034 my $db_lock = "$db.lock";
2035 my $sig;
2036 if ($update_ref) {
2037 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2038 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
2039 }
2040 mkfile($db);
2041
2042 $LOCKFILES{$db_lock} = 1;
2043 my $sync;
2044 # both of these options make our .rev_db file very, very important
2045 # and we can't afford to lose it because rebuild() won't work
2046 if ($self->use_svm_props || $self->no_metadata) {
2047 $sync = 1;
2048 copy($db, $db_lock) or die "rev_db_set(@_): ",
2049 "Failed to copy: ",
2050 "$db => $db_lock ($!)\n";
2051 } else {
2052 rename $db, $db_lock or die "rev_db_set(@_): ",
2053 "Failed to rename: ",
2054 "$db => $db_lock ($!)\n";
2055 }
2056 open my $fh, '+<', $db_lock or die "Couldn't open $db_lock: $!\n";
2057 _rev_db_set($fh, $rev, $commit);
2058 if ($sync) {
2059 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2060 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2061 }
2062 close $fh or croak $!;
2063 if ($update_ref) {
2064 $_head = $self;
2065 command_noisy('update-ref', '-m', "r$rev",
2066 $self->refname, $commit);
2067 }
2068 rename $db_lock, $db or die "rev_db_set(@_): ", "Failed to rename: ",
2069 "$db_lock => $db ($!)\n";
2070 delete $LOCKFILES{$db_lock};
2071 if ($update_ref) {
2072 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2073 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2074 kill $sig, $$ if defined $sig;
2075 }
2076 }
2077
2078 sub rev_db_max {
2079 my ($self) = @_;
2080 $self->rebuild;
2081 my $db_path = $self->db_path;
2082 my @stat = stat $db_path or return 0;
2083 ($stat[7] % 41) == 0 or die "$db_path inconsistent size: $stat[7]\n";
2084 my $max = $stat[7] / 41;
2085 (($max > 0) ? $max - 1 : 0);
2086 }
2087
2088 sub rev_db_get {
2089 my ($self, $rev, $uuid) = @_;
2090 my $ret;
2091 my $offset = $rev * 41;
2092 my $db_path = $self->db_path($uuid);
2093 return undef unless -e $db_path;
2094 open my $fh, '<', $db_path or croak $!;
2095 if (sysseek($fh, $offset, 0) == $offset) {
2096 my $read = sysread($fh, $ret, 40);
2097 $ret = undef if ($read != 40 || $ret eq ('0'x40));
2098 }
2099 close $fh or croak $!;
2100 $ret;
2101 }
2102
2103 sub find_rev_before {
2104 my ($self, $rev, $eq_ok) = @_;
2105 --$rev unless $eq_ok;
2106 while ($rev > 0) {
2107 if (my $c = $self->rev_db_get($rev)) {
2108 return ($rev, $c);
2109 }
2110 --$rev;
2111 }
2112 return (undef, undef);
2113 }
2114
2115 sub _new {
2116 my ($class, $repo_id, $ref_id, $path) = @_;
2117 unless (defined $repo_id && length $repo_id) {
2118 $repo_id = $Git::SVN::default_repo_id;
2119 }
2120 unless (defined $ref_id && length $ref_id) {
2121 $_[2] = $ref_id = $Git::SVN::default_ref_id;
2122 }
2123 $_[1] = $repo_id = sanitize_remote_name($repo_id);
2124 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2125 $_[3] = $path = '' unless (defined $path);
2126 mkpath(["$ENV{GIT_DIR}/svn"]);
2127 bless {
2128 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2129 path => $path, config => "$ENV{GIT_DIR}/svn/config",
2130 db_root => "$dir/.rev_db", repo_id => $repo_id }, $class;
2131 }
2132
2133 sub db_path {
2134 my ($self, $uuid) = @_;
2135 $uuid ||= $self->ra_uuid;
2136 "$self->{db_root}.$uuid";
2137 }
2138
2139 sub uri_encode {
2140 my ($f) = @_;
2141 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2142 $f
2143 }
2144
2145 sub remove_username {
2146 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
2147 }
2148
2149 package Git::SVN::Prompt;
2150 use strict;
2151 use warnings;
2152 require SVN::Core;
2153 use vars qw/$_no_auth_cache $_username/;
2154
2155 sub simple {
2156 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2157 $may_save = undef if $_no_auth_cache;
2158 $default_username = $_username if defined $_username;
2159 if (defined $default_username && length $default_username) {
2160 if (defined $realm && length $realm) {
2161 print STDERR "Authentication realm: $realm\n";
2162 STDERR->flush;
2163 }
2164 $cred->username($default_username);
2165 } else {
2166 username($cred, $realm, $may_save, $pool);
2167 }
2168 $cred->password(_read_password("Password for '" .
2169 $cred->username . "': ", $realm));
2170 $cred->may_save($may_save);
2171 $SVN::_Core::SVN_NO_ERROR;
2172 }
2173
2174 sub ssl_server_trust {
2175 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2176 $may_save = undef if $_no_auth_cache;
2177 print STDERR "Error validating server certificate for '$realm':\n";
2178 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2179 print STDERR " - The certificate is not issued by a trusted ",
2180 "authority. Use the\n",
2181 " fingerprint to validate the certificate manually!\n";
2182 }
2183 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2184 print STDERR " - The certificate hostname does not match.\n";
2185 }
2186 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2187 print STDERR " - The certificate is not yet valid.\n";
2188 }
2189 if ($failures & $SVN::Auth::SSL::EXPIRED) {
2190 print STDERR " - The certificate has expired.\n";
2191 }
2192 if ($failures & $SVN::Auth::SSL::OTHER) {
2193 print STDERR " - The certificate has an unknown error.\n";
2194 }
2195 printf STDERR
2196 "Certificate information:\n".
2197 " - Hostname: %s\n".
2198 " - Valid: from %s until %s\n".
2199 " - Issuer: %s\n".
2200 " - Fingerprint: %s\n",
2201 map $cert_info->$_, qw(hostname valid_from valid_until
2202 issuer_dname fingerprint);
2203 my $choice;
2204 prompt:
2205 print STDERR $may_save ?
2206 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
2207 "(R)eject or accept (t)emporarily? ";
2208 STDERR->flush;
2209 $choice = lc(substr(<STDIN> || 'R', 0, 1));
2210 if ($choice =~ /^t$/i) {
2211 $cred->may_save(undef);
2212 } elsif ($choice =~ /^r$/i) {
2213 return -1;
2214 } elsif ($may_save && $choice =~ /^p$/i) {
2215 $cred->may_save($may_save);
2216 } else {
2217 goto prompt;
2218 }
2219 $cred->accepted_failures($failures);
2220 $SVN::_Core::SVN_NO_ERROR;
2221 }
2222
2223 sub ssl_client_cert {
2224 my ($cred, $realm, $may_save, $pool) = @_;
2225 $may_save = undef if $_no_auth_cache;
2226 print STDERR "Client certificate filename: ";
2227 STDERR->flush;
2228 chomp(my $filename = <STDIN>);
2229 $cred->cert_file($filename);
2230 $cred->may_save($may_save);
2231 $SVN::_Core::SVN_NO_ERROR;
2232 }
2233
2234 sub ssl_client_cert_pw {
2235 my ($cred, $realm, $may_save, $pool) = @_;
2236 $may_save = undef if $_no_auth_cache;
2237 $cred->password(_read_password("Password: ", $realm));
2238 $cred->may_save($may_save);
2239 $SVN::_Core::SVN_NO_ERROR;
2240 }
2241
2242 sub username {
2243 my ($cred, $realm, $may_save, $pool) = @_;
2244 $may_save = undef if $_no_auth_cache;
2245 if (defined $realm && length $realm) {
2246 print STDERR "Authentication realm: $realm\n";
2247 }
2248 my $username;
2249 if (defined $_username) {
2250 $username = $_username;
2251 } else {
2252 print STDERR "Username: ";
2253 STDERR->flush;
2254 chomp($username = <STDIN>);
2255 }
2256 $cred->username($username);
2257 $cred->may_save($may_save);
2258 $SVN::_Core::SVN_NO_ERROR;
2259 }
2260
2261 sub _read_password {
2262 my ($prompt, $realm) = @_;
2263 print STDERR $prompt;
2264 STDERR->flush;
2265 require Term::ReadKey;
2266 Term::ReadKey::ReadMode('noecho');
2267 my $password = '';
2268 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
2269 last if $key =~ /[\012\015]/; # \n\r
2270 $password .= $key;
2271 }
2272 Term::ReadKey::ReadMode('restore');
2273 print STDERR "\n";
2274 STDERR->flush;
2275 $password;
2276 }
2277
2278 package main;
2279
2280 {
2281 my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
2282 $SVN::Node::dir.$SVN::Node::unknown.
2283 $SVN::Node::none.$SVN::Node::file.
2284 $SVN::Node::dir.$SVN::Node::unknown.
2285 $SVN::Auth::SSL::CNMISMATCH.
2286 $SVN::Auth::SSL::NOTYETVALID.
2287 $SVN::Auth::SSL::EXPIRED.
2288 $SVN::Auth::SSL::UNKNOWNCA.
2289 $SVN::Auth::SSL::OTHER;
2290 }
2291
2292 package SVN::Git::Fetcher;
2293 use vars qw/@ISA/;
2294 use strict;
2295 use warnings;
2296 use Carp qw/croak/;
2297 use IO::File qw//;
2298 use Digest::MD5;
2299
2300 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
2301 sub new {
2302 my ($class, $git_svn) = @_;
2303 my $self = SVN::Delta::Editor->new;
2304 bless $self, $class;
2305 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
2306 $self->{empty} = {};
2307 $self->{dir_prop} = {};
2308 $self->{file_prop} = {};
2309 $self->{absent_dir} = {};
2310 $self->{absent_file} = {};
2311 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
2312 $self;
2313 }
2314
2315 sub set_path_strip {
2316 my ($self, $path) = @_;
2317 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
2318 }
2319
2320 sub open_root {
2321 { path => '' };
2322 }
2323
2324 sub open_directory {
2325 my ($self, $path, $pb, $rev) = @_;
2326 { path => $path };
2327 }
2328
2329 sub git_path {
2330 my ($self, $path) = @_;
2331 if ($self->{path_strip}) {
2332 $path =~ s!$self->{path_strip}!! or
2333 die "Failed to strip path '$path' ($self->{path_strip})\n";
2334 }
2335 $path;
2336 }
2337
2338 sub delete_entry {
2339 my ($self, $path, $rev, $pb) = @_;
2340
2341 my $gpath = $self->git_path($path);
2342 return undef if ($gpath eq '');
2343
2344 # remove entire directories.
2345 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
2346 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
2347 -r --name-only -z/,
2348 $self->{c}, '--', $gpath);
2349 local $/ = "\0";
2350 while (<$ls>) {
2351 chomp;
2352 $self->{gii}->remove($_);
2353 print "\tD\t$_\n" unless $::_q;
2354 }
2355 print "\tD\t$gpath/\n" unless $::_q;
2356 command_close_pipe($ls, $ctx);
2357 $self->{empty}->{$path} = 0
2358 } else {
2359 $self->{gii}->remove($gpath);
2360 print "\tD\t$gpath\n" unless $::_q;
2361 }
2362 undef;
2363 }
2364
2365 sub open_file {
2366 my ($self, $path, $pb, $rev) = @_;
2367 my $gpath = $self->git_path($path);
2368 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
2369 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
2370 unless (defined $mode && defined $blob) {
2371 die "$path was not found in commit $self->{c} (r$rev)\n";
2372 }
2373 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
2374 pool => SVN::Pool->new, action => 'M' };
2375 }
2376
2377 sub add_file {
2378 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
2379 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2380 delete $self->{empty}->{$dir};
2381 { path => $path, mode_a => 100644, mode_b => 100644,
2382 pool => SVN::Pool->new, action => 'A' };
2383 }
2384
2385 sub add_directory {
2386 my ($self, $path, $cp_path, $cp_rev) = @_;
2387 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2388 delete $self->{empty}->{$dir};
2389 $self->{empty}->{$path} = 1;
2390 { path => $path };
2391 }
2392
2393 sub change_dir_prop {
2394 my ($self, $db, $prop, $value) = @_;
2395 $self->{dir_prop}->{$db->{path}} ||= {};
2396 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
2397 undef;
2398 }
2399
2400 sub absent_directory {
2401 my ($self, $path, $pb) = @_;
2402 $self->{absent_dir}->{$pb->{path}} ||= [];
2403 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
2404 undef;
2405 }
2406
2407 sub absent_file {
2408 my ($self, $path, $pb) = @_;
2409 $self->{absent_file}->{$pb->{path}} ||= [];
2410 push @{$self->{absent_file}->{$pb->{path}}}, $path;
2411 undef;
2412 }
2413
2414 sub change_file_prop {
2415 my ($self, $fb, $prop, $value) = @_;
2416 if ($prop eq 'svn:executable') {
2417 if ($fb->{mode_b} != 120000) {
2418 $fb->{mode_b} = defined $value ? 100755 : 100644;
2419 }
2420 } elsif ($prop eq 'svn:special') {
2421 $fb->{mode_b} = defined $value ? 120000 : 100644;
2422 } else {
2423 $self->{file_prop}->{$fb->{path}} ||= {};
2424 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
2425 }
2426 undef;
2427 }
2428
2429 sub apply_textdelta {
2430 my ($self, $fb, $exp) = @_;
2431 my $fh = IO::File->new_tmpfile;
2432 $fh->autoflush(1);
2433 # $fh gets auto-closed() by SVN::TxDelta::apply(),
2434 # (but $base does not,) so dup() it for reading in close_file
2435 open my $dup, '<&', $fh or croak $!;
2436 my $base = IO::File->new_tmpfile;
2437 $base->autoflush(1);
2438 if ($fb->{blob}) {
2439 defined (my $pid = fork) or croak $!;
2440 if (!$pid) {
2441 open STDOUT, '>&', $base or croak $!;
2442 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
2443 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
2444 }
2445 waitpid $pid, 0;
2446 croak $? if $?;
2447
2448 if (defined $exp) {
2449 seek $base, 0, 0 or croak $!;
2450 my $md5 = Digest::MD5->new;
2451 $md5->addfile($base);
2452 my $got = $md5->hexdigest;
2453 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
2454 "expected: $exp\n",
2455 " got: $got\n" if ($got ne $exp);
2456 }
2457 }
2458 seek $base, 0, 0 or croak $!;
2459 $fb->{fh} = $dup;
2460 $fb->{base} = $base;
2461 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
2462 }
2463
2464 sub close_file {
2465 my ($self, $fb, $exp) = @_;
2466 my $hash;
2467 my $path = $self->git_path($fb->{path});
2468 if (my $fh = $fb->{fh}) {
2469 seek($fh, 0, 0) or croak $!;
2470 my $md5 = Digest::MD5->new;
2471 $md5->addfile($fh);
2472 my $got = $md5->hexdigest;
2473 die "Checksum mismatch: $path\n",
2474 "expected: $exp\n got: $got\n" if ($got ne $exp);
2475 sysseek($fh, 0, 0) or croak $!;
2476 if ($fb->{mode_b} == 120000) {
2477 sysread($fh, my $buf, 5) == 5 or croak $!;
2478 $buf eq 'link ' or die "$path has mode 120000",
2479 "but is not a link\n";
2480 }
2481 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
2482 if (!$pid) {
2483 open STDIN, '<&', $fh or croak $!;
2484 exec qw/git-hash-object -w --stdin/ or croak $!;
2485 }
2486 chomp($hash = do { local $/; <$out> });
2487 close $out or croak $!;
2488 close $fh or croak $!;
2489 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
2490 close $fb->{base} or croak $!;
2491 } else {
2492 $hash = $fb->{blob} or die "no blob information\n";
2493 }
2494 $fb->{pool}->clear;
2495 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
2496 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
2497 undef;
2498 }
2499
2500 sub abort_edit {
2501 my $self = shift;
2502 $self->{nr} = $self->{gii}->{nr};
2503 delete $self->{gii};
2504 $self->SUPER::abort_edit(@_);
2505 }
2506
2507 sub close_edit {
2508 my $self = shift;
2509 $self->{git_commit_ok} = 1;
2510 $self->{nr} = $self->{gii}->{nr};
2511 delete $self->{gii};
2512 $self->SUPER::close_edit(@_);
2513 }
2514
2515 package SVN::Git::Editor;
2516 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
2517 use strict;
2518 use warnings;
2519 use Carp qw/croak/;
2520 use IO::File;
2521 use Digest::MD5;
2522
2523 sub new {
2524 my ($class, $opts) = @_;
2525 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
2526 die "$_ required!\n" unless (defined $opts->{$_});
2527 }
2528
2529 my $pool = SVN::Pool->new;
2530 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
2531 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
2532 $opts->{r}, $mods);
2533
2534 # $opts->{ra} functions should not be used after this:
2535 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
2536 $opts->{editor_cb}, $pool);
2537 my $self = SVN::Delta::Editor->new(@ce, $pool);
2538 bless $self, $class;
2539 foreach (qw/svn_path r tree_a tree_b/) {
2540 $self->{$_} = $opts->{$_};
2541 }
2542 $self->{url} = $opts->{ra}->{url};
2543 $self->{mods} = $mods;
2544 $self->{types} = $types;
2545 $self->{pool} = $pool;
2546 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
2547 $self->{rm} = { };
2548 $self->{path_prefix} = length $self->{svn_path} ?
2549 "$self->{svn_path}/" : '';
2550 return $self;
2551 }
2552
2553 sub generate_diff {
2554 my ($tree_a, $tree_b) = @_;
2555 my @diff_tree = qw(diff-tree -z -r);
2556 if ($_cp_similarity) {
2557 push @diff_tree, "-C$_cp_similarity";
2558 } else {
2559 push @diff_tree, '-C';
2560 }
2561 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
2562 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
2563 push @diff_tree, $tree_a, $tree_b;
2564 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
2565 local $/ = "\0";
2566 my $state = 'meta';
2567 my @mods;
2568 while (<$diff_fh>) {
2569 chomp $_; # this gets rid of the trailing "\0"
2570 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
2571 $::sha1\s($::sha1)\s
2572 ([MTCRAD])\d*$/xo) {
2573 push @mods, { mode_a => $1, mode_b => $2,
2574 sha1_b => $3, chg => $4 };
2575 if ($4 =~ /^(?:C|R)$/) {
2576 $state = 'file_a';
2577 } else {
2578 $state = 'file_b';
2579 }
2580 } elsif ($state eq 'file_a') {
2581 my $x = $mods[$#mods] or croak "Empty array\n";
2582 if ($x->{chg} !~ /^(?:C|R)$/) {
2583 croak "Error parsing $_, $x->{chg}\n";
2584 }
2585 $x->{file_a} = $_;
2586 $state = 'file_b';
2587 } elsif ($state eq 'file_b') {
2588 my $x = $mods[$#mods] or croak "Empty array\n";
2589 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
2590 croak "Error parsing $_, $x->{chg}\n";
2591 }
2592 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
2593 croak "Error parsing $_, $x->{chg}\n";
2594 }
2595 $x->{file_b} = $_;
2596 $state = 'meta';
2597 } else {
2598 croak "Error parsing $_\n";
2599 }
2600 }
2601 command_close_pipe($diff_fh, $ctx);
2602 \@mods;
2603 }
2604
2605 sub check_diff_paths {
2606 my ($ra, $pfx, $rev, $mods) = @_;
2607 my %types;
2608 $pfx .= '/' if length $pfx;
2609
2610 sub type_diff_paths {
2611 my ($ra, $types, $path, $rev) = @_;
2612 my @p = split m#/+#, $path;
2613 my $c = shift @p;
2614 unless (defined $types->{$c}) {
2615 $types->{$c} = $ra->check_path($c, $rev);
2616 }
2617 while (@p) {
2618 $c .= '/' . shift @p;
2619 next if defined $types->{$c};
2620 $types->{$c} = $ra->check_path($c, $rev);
2621 }
2622 }
2623
2624 foreach my $m (@$mods) {
2625 foreach my $f (qw/file_a file_b/) {
2626 next unless defined $m->{$f};
2627 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
2628 if (length $pfx.$dir && ! defined $types{$dir}) {
2629 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
2630 }
2631 }
2632 }
2633 \%types;
2634 }
2635
2636 sub split_path {
2637 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
2638 }
2639
2640 sub repo_path {
2641 my ($self, $path) = @_;
2642 $self->{path_prefix}.(defined $path ? $path : '');
2643 }
2644
2645 sub url_path {
2646 my ($self, $path) = @_;
2647 $self->{url} . '/' . $self->repo_path($path);
2648 }
2649
2650 sub rmdirs {
2651 my ($self) = @_;
2652 my $rm = $self->{rm};
2653 delete $rm->{''}; # we never delete the url we're tracking
2654 return unless %$rm;
2655
2656 foreach (keys %$rm) {
2657 my @d = split m#/#, $_;
2658 my $c = shift @d;
2659 $rm->{$c} = 1;
2660 while (@d) {
2661 $c .= '/' . shift @d;
2662 $rm->{$c} = 1;
2663 }
2664 }
2665 delete $rm->{$self->{svn_path}};
2666 delete $rm->{''}; # we never delete the url we're tracking
2667 return unless %$rm;
2668
2669 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
2670 $self->{tree_b});
2671 local $/ = "\0";
2672 while (<$fh>) {
2673 chomp;
2674 my @dn = split m#/#, $_;
2675 while (pop @dn) {
2676 delete $rm->{join '/', @dn};
2677 }
2678 unless (%$rm) {
2679 close $fh;
2680 return;
2681 }
2682 }
2683 command_close_pipe($fh, $ctx);
2684
2685 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
2686 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
2687 $self->close_directory($bat->{$d}, $p);
2688 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
2689 print "\tD+\t$d/\n" unless $::_q;
2690 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
2691 delete $bat->{$d};
2692 }
2693 }
2694
2695 sub open_or_add_dir {
2696 my ($self, $full_path, $baton) = @_;
2697 my $t = $self->{types}->{$full_path};
2698 if (!defined $t) {
2699 die "$full_path not known in r$self->{r} or we have a bug!\n";
2700 }
2701 if ($t == $SVN::Node::none) {
2702 return $self->add_directory($full_path, $baton,
2703 undef, -1, $self->{pool});
2704 } elsif ($t == $SVN::Node::dir) {
2705 return $self->open_directory($full_path, $baton,
2706 $self->{r}, $self->{pool});
2707 }
2708 print STDERR "$full_path already exists in repository at ",
2709 "r$self->{r} and it is not a directory (",
2710 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
2711 exit 1;
2712 }
2713
2714 sub ensure_path {
2715 my ($self, $path) = @_;
2716 my $bat = $self->{bat};
2717 my $repo_path = $self->repo_path($path);
2718 return $bat->{''} unless (length $repo_path);
2719 my @p = split m#/+#, $repo_path;
2720 my $c = shift @p;
2721 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
2722 while (@p) {
2723 my $c0 = $c;
2724 $c .= '/' . shift @p;
2725 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
2726 }
2727 return $bat->{$c};
2728 }
2729
2730 sub A {
2731 my ($self, $m) = @_;
2732 my ($dir, $file) = split_path($m->{file_b});
2733 my $pbat = $self->ensure_path($dir);
2734 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2735 undef, -1);
2736 print "\tA\t$m->{file_b}\n" unless $::_q;
2737 $self->chg_file($fbat, $m);
2738 $self->close_file($fbat,undef,$self->{pool});
2739 }
2740
2741 sub C {
2742 my ($self, $m) = @_;
2743 my ($dir, $file) = split_path($m->{file_b});
2744 my $pbat = $self->ensure_path($dir);
2745 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2746 $self->url_path($m->{file_a}), $self->{r});
2747 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2748 $self->chg_file($fbat, $m);
2749 $self->close_file($fbat,undef,$self->{pool});
2750 }
2751
2752 sub delete_entry {
2753 my ($self, $path, $pbat) = @_;
2754 my $rpath = $self->repo_path($path);
2755 my ($dir, $file) = split_path($rpath);
2756 $self->{rm}->{$dir} = 1;
2757 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
2758 }
2759
2760 sub R {
2761 my ($self, $m) = @_;
2762 my ($dir, $file) = split_path($m->{file_b});
2763 my $pbat = $self->ensure_path($dir);
2764 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2765 $self->url_path($m->{file_a}), $self->{r});
2766 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2767 $self->chg_file($fbat, $m);
2768 $self->close_file($fbat,undef,$self->{pool});
2769
2770 ($dir, $file) = split_path($m->{file_a});
2771 $pbat = $self->ensure_path($dir);
2772 $self->delete_entry($m->{file_a}, $pbat);
2773 }
2774
2775 sub M {
2776 my ($self, $m) = @_;
2777 my ($dir, $file) = split_path($m->{file_b});
2778 my $pbat = $self->ensure_path($dir);
2779 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
2780 $pbat,$self->{r},$self->{pool});
2781 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
2782 $self->chg_file($fbat, $m);
2783 $self->close_file($fbat,undef,$self->{pool});
2784 }
2785
2786 sub T { shift->M(@_) }
2787
2788 sub change_file_prop {
2789 my ($self, $fbat, $pname, $pval) = @_;
2790 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
2791 }
2792
2793 sub chg_file {
2794 my ($self, $fbat, $m) = @_;
2795 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
2796 $self->change_file_prop($fbat,'svn:executable','*');
2797 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
2798 $self->change_file_prop($fbat,'svn:executable',undef);
2799 }
2800 my $fh = IO::File->new_tmpfile or croak $!;
2801 if ($m->{mode_b} =~ /^120/) {
2802 print $fh 'link ' or croak $!;
2803 $self->change_file_prop($fbat,'svn:special','*');
2804 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
2805 $self->change_file_prop($fbat,'svn:special',undef);
2806 }
2807 defined(my $pid = fork) or croak $!;
2808 if (!$pid) {
2809 open STDOUT, '>&', $fh or croak $!;
2810 exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!;
2811 }
2812 waitpid $pid, 0;
2813 croak $? if $?;
2814 $fh->flush == 0 or croak $!;
2815 seek $fh, 0, 0 or croak $!;
2816
2817 my $md5 = Digest::MD5->new;
2818 $md5->addfile($fh) or croak $!;
2819 seek $fh, 0, 0 or croak $!;
2820
2821 my $exp = $md5->hexdigest;
2822 my $pool = SVN::Pool->new;
2823 my $atd = $self->apply_textdelta($fbat, undef, $pool);
2824 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
2825 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
2826 $pool->clear;
2827
2828 close $fh or croak $!;
2829 }
2830
2831 sub D {
2832 my ($self, $m) = @_;
2833 my ($dir, $file) = split_path($m->{file_b});
2834 my $pbat = $self->ensure_path($dir);
2835 print "\tD\t$m->{file_b}\n" unless $::_q;
2836 $self->delete_entry($m->{file_b}, $pbat);
2837 }
2838
2839 sub close_edit {
2840 my ($self) = @_;
2841 my ($p,$bat) = ($self->{pool}, $self->{bat});
2842 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
2843 $self->close_directory($bat->{$_}, $p);
2844 }
2845 $self->SUPER::close_edit($p);
2846 $p->clear;
2847 }
2848
2849 sub abort_edit {
2850 my ($self) = @_;
2851 $self->SUPER::abort_edit($self->{pool});
2852 }
2853
2854 sub DESTROY {
2855 my $self = shift;
2856 $self->SUPER::DESTROY(@_);
2857 $self->{pool}->clear;
2858 }
2859
2860 # this drives the editor
2861 sub apply_diff {
2862 my ($self) = @_;
2863 my $mods = $self->{mods};
2864 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
2865 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
2866 my $f = $m->{chg};
2867 if (defined $o{$f}) {
2868 $self->$f($m);
2869 } else {
2870 fatal("Invalid change type: $f\n");
2871 }
2872 }
2873 $self->rmdirs if $_rmdir;
2874 if (@$mods == 0) {
2875 $self->abort_edit;
2876 } else {
2877 $self->close_edit;
2878 }
2879 return scalar @$mods;
2880 }
2881
2882 package Git::SVN::Ra;
2883 use vars qw/@ISA $config_dir $_log_window_size/;
2884 use strict;
2885 use warnings;
2886 my ($can_do_switch, %ignored_err, $RA);
2887
2888 BEGIN {
2889 # enforce temporary pool usage for some simple functions
2890 my $e;
2891 foreach (qw/get_latest_revnum get_uuid get_repos_root/) {
2892 $e .= "sub $_ {
2893 my \$self = shift;
2894 my \$pool = SVN::Pool->new;
2895 my \@ret = \$self->SUPER::$_(\@_,\$pool);
2896 \$pool->clear;
2897 wantarray ? \@ret : \$ret[0]; }\n";
2898 }
2899
2900 # get_dir needs $pool held in cache for dirents to work,
2901 # check_path is cacheable and rev_proplist is close enough
2902 # for our purposes.
2903 foreach (qw/check_path get_dir rev_proplist/) {
2904 $e .= "my \%${_}_cache; my \$${_}_rev = 0; sub $_ {
2905 my \$self = shift;
2906 my \$r = pop;
2907 my \$k = join(\"\\0\", \@_);
2908 if (my \$x = \$${_}_cache{\$r}->{\$k}) {
2909 return wantarray ? \@\$x : \$x->[0];
2910 }
2911 my \$pool = SVN::Pool->new;
2912 my \@ret = \$self->SUPER::$_(\@_, \$r, \$pool);
2913 if (\$r != \$${_}_rev) {
2914 \%${_}_cache = ( pool => [] );
2915 \$${_}_rev = \$r;
2916 }
2917 \$${_}_cache{\$r}->{\$k} = \\\@ret;
2918 push \@{\$${_}_cache{pool}}, \$pool;
2919 wantarray ? \@ret : \$ret[0]; }\n";
2920 }
2921 $e .= "\n1;";
2922 eval $e or die $@;
2923 }
2924
2925 sub new {
2926 my ($class, $url) = @_;
2927 $url =~ s!/+$!!;
2928 return $RA if ($RA && $RA->{url} eq $url);
2929 $RA->{pool}->clear if $RA;
2930
2931 SVN::_Core::svn_config_ensure($config_dir, undef);
2932 my ($baton, $callbacks) = SVN::Core::auth_open_helper([
2933 SVN::Client::get_simple_provider(),
2934 SVN::Client::get_ssl_server_trust_file_provider(),
2935 SVN::Client::get_simple_prompt_provider(
2936 \&Git::SVN::Prompt::simple, 2),
2937 SVN::Client::get_ssl_client_cert_prompt_provider(
2938 \&Git::SVN::Prompt::ssl_client_cert, 2),
2939 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
2940 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
2941 SVN::Client::get_username_provider(),
2942 SVN::Client::get_ssl_server_trust_prompt_provider(
2943 \&Git::SVN::Prompt::ssl_server_trust),
2944 SVN::Client::get_username_prompt_provider(
2945 \&Git::SVN::Prompt::username, 2),
2946 ]);
2947 my $config = SVN::Core::config_get_config($config_dir);
2948 my $self = SVN::Ra->new(url => $url, auth => $baton,
2949 config => $config,
2950 pool => SVN::Pool->new,
2951 auth_provider_callbacks => $callbacks);
2952 $self->{svn_path} = $url;
2953 $self->{repos_root} = $self->get_repos_root;
2954 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
2955 $RA = bless $self, $class;
2956 }
2957
2958 sub DESTROY {
2959 # do not call the real DESTROY since we store ourselves in $RA
2960 }
2961
2962 sub get_log {
2963 my ($self, @args) = @_;
2964 my $pool = SVN::Pool->new;
2965 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
2966 my $ret = $self->SUPER::get_log(@args, $pool);
2967 $pool->clear;
2968 $ret;
2969 }
2970
2971 sub get_commit_editor {
2972 my ($self, $log, $cb, $pool) = @_;
2973 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
2974 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
2975 }
2976
2977 sub gs_do_update {
2978 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
2979 my $new = ($rev_a == $rev_b);
2980 my $path = $gs->{path};
2981
2982 if ($new && -e $gs->{index}) {
2983 unlink $gs->{index} or die
2984 "Couldn't unlink index: $gs->{index}: $!\n";
2985 }
2986 my $pool = SVN::Pool->new;
2987 $editor->set_path_strip($path);
2988 my (@pc) = split m#/#, $path;
2989 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
2990 1, $editor, $pool);
2991 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2992
2993 # Since we can't rely on svn_ra_reparent being available, we'll
2994 # just have to do some magic with set_path to make it so
2995 # we only want a partial path.
2996 my $sp = '';
2997 my $final = join('/', @pc);
2998 while (@pc) {
2999 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
3000 $sp .= '/' if length $sp;
3001 $sp .= shift @pc;
3002 }
3003 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
3004
3005 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
3006
3007 $reporter->finish_report($pool);
3008 $pool->clear;
3009 $editor->{git_commit_ok};
3010 }
3011
3012 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
3013 # svn_ra_reparent didn't work before 1.4)
3014 sub gs_do_switch {
3015 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
3016 my $path = $gs->{path};
3017 my $pool = SVN::Pool->new;
3018
3019 my $full_url = $self->{url};
3020 my $old_url = $full_url;
3021 $full_url .= "/$path" if length $path;
3022 my ($ra, $reparented);
3023 if ($old_url ne $full_url) {
3024 if ($old_url !~ m#^svn(\+ssh)?://#) {
3025 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url,
3026 $pool);
3027 $self->{url} = $full_url;
3028 $reparented = 1;
3029 } else {
3030 $ra = Git::SVN::Ra->new($full_url);
3031 }
3032 }
3033 $ra ||= $self;
3034 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
3035 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3036 $reporter->set_path('', $rev_a, 0, @lock, $pool);
3037 $reporter->finish_report($pool);
3038
3039 if ($reparented) {
3040 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
3041 $self->{url} = $old_url;
3042 }
3043
3044 $pool->clear;
3045 $editor->{git_commit_ok};
3046 }
3047
3048 sub gs_fetch_loop_common {
3049 my ($self, $base, $head, $gsv, $globs) = @_;
3050 return if ($base > $head);
3051 my $inc = $_log_window_size;
3052 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
3053 my %common;
3054 my $common_max = scalar @$gsv;
3055
3056 foreach my $gs (@$gsv) {
3057 my @tmp = split m#/#, $gs->{path};
3058 my $p = '';
3059 foreach (@tmp) {
3060 $p .= length($p) ? "/$_" : $_;
3061 $common{$p} ||= 0;
3062 $common{$p}++;
3063 }
3064 }
3065 $globs ||= [];
3066 $common_max += scalar @$globs;
3067 foreach my $glob (@$globs) {
3068 my @tmp = split m#/#, $glob->{path}->{left};
3069 my $p = '';
3070 foreach (@tmp) {
3071 $p .= length($p) ? "/$_" : $_;
3072 $common{$p} ||= 0;
3073 $common{$p}++;
3074 }
3075 }
3076
3077 my $longest_path = '';
3078 foreach (sort {length $b <=> length $a} keys %common) {
3079 if ($common{$_} == $common_max) {
3080 $longest_path = $_;
3081 last;
3082 }
3083 }
3084 while (1) {
3085 my %revs;
3086 my $err;
3087 my $err_handler = $SVN::Error::handler;
3088 $SVN::Error::handler = sub {
3089 ($err) = @_;
3090 skip_unknown_revs($err);
3091 };
3092 sub _cb {
3093 my ($paths, $r, $author, $date, $log) = @_;
3094 [ dup_changed_paths($paths),
3095 { author => $author, date => $date, log => $log } ];
3096 }
3097 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
3098 sub { $revs{$_[1]} = _cb(@_) });
3099 if ($err && $max >= $head) {
3100 print STDERR "Path '$longest_path' ",
3101 "was probably deleted:\n",
3102 $err->expanded_message,
3103 "\nWill attempt to follow ",
3104 "revisions r$min .. r$max ",
3105 "committed before the deletion\n";
3106 my $hi = $max;
3107 while (--$hi >= $min) {
3108 my $ok;
3109 $self->get_log([$longest_path], $min, $hi,
3110 0, 1, 1, sub {
3111 $ok ||= $_[1];
3112 $revs{$_[1]} = _cb(@_) });
3113 if ($ok) {
3114 print STDERR "r$min .. r$ok OK\n";
3115 last;
3116 }
3117 }
3118 }
3119 $SVN::Error::handler = $err_handler;
3120
3121 my %exists = map { $_->{path} => $_ } @$gsv;
3122 foreach my $r (sort {$a <=> $b} keys %revs) {
3123 my ($paths, $logged) = @{$revs{$r}};
3124
3125 foreach my $gs ($self->match_globs(\%exists, $paths,
3126 $globs, $r)) {
3127 if ($gs->rev_db_max >= $r) {
3128 next;
3129 }
3130 next unless $gs->match_paths($paths, $r);
3131 $gs->{logged_rev_props} = $logged;
3132 if (my $last_commit = $gs->last_commit) {
3133 $gs->assert_index_clean($last_commit);
3134 }
3135 my $log_entry = $gs->do_fetch($paths, $r);
3136 if ($log_entry) {
3137 $gs->do_git_commit($log_entry);
3138 }
3139 }
3140 foreach my $g (@$globs) {
3141 my $k = "svn-remote.$g->{remote}." .
3142 "$g->{t}-maxRev";
3143 Git::SVN::tmp_config($k, $r);
3144 }
3145 }
3146 # pre-fill the .rev_db since it'll eventually get filled in
3147 # with '0' x40 if something new gets committed
3148 foreach my $gs (@$gsv) {
3149 next if defined $gs->rev_db_get($max);
3150 $gs->rev_db_set($max, 0 x40);
3151 }
3152 foreach my $g (@$globs) {
3153 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
3154 Git::SVN::tmp_config($k, $max);
3155 }
3156 last if $max >= $head;
3157 $min = $max + 1;
3158 $max += $inc;
3159 $max = $head if ($max > $head);
3160 }
3161 }
3162
3163 sub match_globs {
3164 my ($self, $exists, $paths, $globs, $r) = @_;
3165
3166 sub get_dir_check {
3167 my ($self, $exists, $g, $r) = @_;
3168 my @x = eval { $self->get_dir($g->{path}->{left}, $r) };
3169 return unless scalar @x == 3;
3170 my $dirents = $x[0];
3171 foreach my $de (keys %$dirents) {
3172 next if $dirents->{$de}->kind != $SVN::Node::dir;
3173 my $p = $g->{path}->full_path($de);
3174 next if $exists->{$p};
3175 next if (length $g->{path}->{right} &&
3176 ($self->check_path($p, $r) !=
3177 $SVN::Node::dir));
3178 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
3179 $g->{ref}->full_path($de), 1);
3180 }
3181 }
3182 foreach my $g (@$globs) {
3183 if (my $path = $paths->{"/$g->{path}->{left}"}) {
3184 if ($path->{action} =~ /^[AR]$/) {
3185 get_dir_check($self, $exists, $g, $r);
3186 }
3187 }
3188 foreach (keys %$paths) {
3189 if (/$g->{path}->{left_regex}/ &&
3190 !/$g->{path}->{regex}/) {
3191 next if $paths->{$_}->{action} !~ /^[AR]$/;
3192 get_dir_check($self, $exists, $g, $r);
3193 }
3194 next unless /$g->{path}->{regex}/;
3195 my $p = $1;
3196 my $pathname = $g->{path}->full_path($p);
3197 next if $exists->{$pathname};
3198 next if ($self->check_path($pathname, $r) !=
3199 $SVN::Node::dir);
3200 $exists->{$pathname} = Git::SVN->init(
3201 $self->{url}, $pathname, undef,
3202 $g->{ref}->full_path($p), 1);
3203 }
3204 my $c = '';
3205 foreach (split m#/#, $g->{path}->{left}) {
3206 $c .= "/$_";
3207 next unless ($paths->{$c} &&
3208 ($paths->{$c}->{action} =~ /^[AR]$/));
3209 get_dir_check($self, $exists, $g, $r);
3210 }
3211 }
3212 values %$exists;
3213 }
3214
3215 sub minimize_url {
3216 my ($self) = @_;
3217 return $self->{url} if ($self->{url} eq $self->{repos_root});
3218 my $url = $self->{repos_root};
3219 my @components = split(m!/!, $self->{svn_path});
3220 my $c = '';
3221 do {
3222 $url .= "/$c" if length $c;
3223 eval { (ref $self)->new($url)->get_latest_revnum };
3224 } while ($@ && ($c = shift @components));
3225 $url;
3226 }
3227
3228 sub can_do_switch {
3229 my $self = shift;
3230 unless (defined $can_do_switch) {
3231 my $pool = SVN::Pool->new;
3232 my $rep = eval {
3233 $self->do_switch(1, '', 0, $self->{url},
3234 SVN::Delta::Editor->new, $pool);
3235 };
3236 if ($@) {
3237 $can_do_switch = 0;
3238 } else {
3239 $rep->abort_report($pool);
3240 $can_do_switch = 1;
3241 }
3242 $pool->clear;
3243 }
3244 $can_do_switch;
3245 }
3246
3247 sub skip_unknown_revs {
3248 my ($err) = @_;
3249 my $errno = $err->apr_err();
3250 # Maybe the branch we're tracking didn't
3251 # exist when the repo started, so it's
3252 # not an error if it doesn't, just continue
3253 #
3254 # Wonderfully consistent library, eh?
3255 # 160013 - svn:// and file://
3256 # 175002 - http(s)://
3257 # 175007 - http(s):// (this repo required authorization, too...)
3258 # More codes may be discovered later...
3259 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
3260 my $err_key = $err->expanded_message;
3261 # revision numbers change every time, filter them out
3262 $err_key =~ s/\d+/\0/g;
3263 $err_key = "$errno\0$err_key";
3264 unless ($ignored_err{$err_key}) {
3265 warn "W: Ignoring error from SVN, path probably ",
3266 "does not exist: ($errno): ",
3267 $err->expanded_message,"\n";
3268 $ignored_err{$err_key} = 1;
3269 }
3270 return;
3271 }
3272 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
3273 }
3274
3275 # svn_log_changed_path_t objects passed to get_log are likely to be
3276 # overwritten even if only the refs are copied to an external variable,
3277 # so we should dup the structures in their entirety. Using an externally
3278 # passed pool (instead of our temporary and quickly cleared pool in
3279 # Git::SVN::Ra) does not help matters at all...
3280 sub dup_changed_paths {
3281 my ($paths) = @_;
3282 return undef unless $paths;
3283 my %ret;
3284 foreach my $p (keys %$paths) {
3285 my $i = $paths->{$p};
3286 my %s = map { $_ => $i->$_ }
3287 qw/copyfrom_path copyfrom_rev action/;
3288 $ret{$p} = \%s;
3289 }
3290 \%ret;
3291 }
3292
3293 package Git::SVN::Log;
3294 use strict;
3295 use warnings;
3296 use POSIX qw/strftime/;
3297 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
3298 %rusers $show_commit $incremental/;
3299 my $l_fmt;
3300
3301 sub cmt_showable {
3302 my ($c) = @_;
3303 return 1 if defined $c->{r};
3304
3305 # big commit message got truncated by the 16k pretty buffer in rev-list
3306 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
3307 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
3308 @{$c->{l}} = ();
3309 my @log = command(qw/cat-file commit/, $c->{c});
3310
3311 # shift off the headers
3312 shift @log while ($log[0] ne '');
3313 shift @log;
3314
3315 # TODO: make $c->{l} not have a trailing newline in the future
3316 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
3317
3318 (undef, $c->{r}, undef) = ::extract_metadata(
3319 (grep(/^git-svn-id: /, @log))[-1]);
3320 }
3321 return defined $c->{r};
3322 }
3323
3324 sub log_use_color {
3325 return 1 if $color;
3326 my ($dc, $dcvar);
3327 $dcvar = 'color.diff';
3328 $dc = `git-config --get $dcvar`;
3329 if ($dc eq '') {
3330 # nothing at all; fallback to "diff.color"
3331 $dcvar = 'diff.color';
3332 $dc = `git-config --get $dcvar`;
3333 }
3334 chomp($dc);
3335 if ($dc eq 'auto') {
3336 my $pc;
3337 $pc = `git-config --get color.pager`;
3338 if ($pc eq '') {
3339 # does not have it -- fallback to pager.color
3340 $pc = `git-config --bool --get pager.color`;
3341 }
3342 else {
3343 $pc = `git-config --bool --get color.pager`;
3344 if ($?) {
3345 $pc = 'false';
3346 }
3347 }
3348 chomp($pc);
3349 if (-t *STDOUT || (defined $pager && $pc eq 'true')) {
3350 return ($ENV{TERM} && $ENV{TERM} ne 'dumb');
3351 }
3352 return 0;
3353 }
3354 return 0 if $dc eq 'never';
3355 return 1 if $dc eq 'always';
3356 chomp($dc = `git-config --bool --get $dcvar`);
3357 return ($dc eq 'true');
3358 }
3359
3360 sub git_svn_log_cmd {
3361 my ($r_min, $r_max, @args) = @_;
3362 my $head = 'HEAD';
3363 foreach my $x (@args) {
3364 last if $x eq '--';
3365 next unless ::verify_ref("$x^0");
3366 $head = $x;
3367 last;
3368 }
3369
3370 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
3371 $gs ||= Git::SVN->_new;
3372 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
3373 $gs->refname);
3374 push @cmd, '-r' unless $non_recursive;
3375 push @cmd, qw/--raw --name-status/ if $verbose;
3376 push @cmd, '--color' if log_use_color();
3377 return @cmd unless defined $r_max;
3378 if ($r_max == $r_min) {
3379 push @cmd, '--max-count=1';
3380 if (my $c = $gs->rev_db_get($r_max)) {
3381 push @cmd, $c;
3382 }
3383 } else {
3384 my ($c_min, $c_max);
3385 $c_max = $gs->rev_db_get($r_max);
3386 $c_min = $gs->rev_db_get($r_min);
3387 if (defined $c_min && defined $c_max) {
3388 if ($r_max > $r_max) {
3389 push @cmd, "$c_min..$c_max";
3390 } else {
3391 push @cmd, "$c_max..$c_min";
3392 }
3393 } elsif ($r_max > $r_min) {
3394 push @cmd, $c_max;
3395 } else {
3396 push @cmd, $c_min;
3397 }
3398 }
3399 return @cmd;
3400 }
3401
3402 # adapted from pager.c
3403 sub config_pager {
3404 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
3405 if (!defined $pager) {
3406 $pager = 'less';
3407 } elsif (length $pager == 0 || $pager eq 'cat') {
3408 $pager = undef;
3409 }
3410 }
3411
3412 sub run_pager {
3413 return unless -t *STDOUT;
3414 pipe my $rfd, my $wfd or return;
3415 defined(my $pid = fork) or ::fatal "Can't fork: $!\n";
3416 if (!$pid) {
3417 open STDOUT, '>&', $wfd or
3418 ::fatal "Can't redirect to stdout: $!\n";
3419 return;
3420 }
3421 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!\n";
3422 $ENV{LESS} ||= 'FRSX';
3423 exec $pager or ::fatal "Can't run pager: $! ($pager)\n";
3424 }
3425
3426 sub tz_to_s_offset {
3427 my ($tz) = @_;
3428 $tz =~ s/(\d\d)$//;
3429 return ($1 * 60) + ($tz * 3600);
3430 }
3431
3432 sub get_author_info {
3433 my ($dest, $author, $t, $tz) = @_;
3434 $author =~ s/(?:^\s*|\s*$)//g;
3435 $dest->{a_raw} = $author;
3436 my $au;
3437 if ($::_authors) {
3438 $au = $rusers{$author} || undef;
3439 }
3440 if (!$au) {
3441 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
3442 }
3443 $dest->{t} = $t;
3444 $dest->{tz} = $tz;
3445 $dest->{a} = $au;
3446 # Date::Parse isn't in the standard Perl distro :(
3447 if ($tz =~ s/^\+//) {
3448 $t += tz_to_s_offset($tz);
3449 } elsif ($tz =~ s/^\-//) {
3450 $t -= tz_to_s_offset($tz);
3451 }
3452 $dest->{t_utc} = $t;
3453 }
3454
3455 sub process_commit {
3456 my ($c, $r_min, $r_max, $defer) = @_;
3457 if (defined $r_min && defined $r_max) {
3458 if ($r_min == $c->{r} && $r_min == $r_max) {
3459 show_commit($c);
3460 return 0;
3461 }
3462 return 1 if $r_min == $r_max;
3463 if ($r_min < $r_max) {
3464 # we need to reverse the print order
3465 return 0 if (defined $limit && --$limit < 0);
3466 push @$defer, $c;
3467 return 1;
3468 }
3469 if ($r_min != $r_max) {
3470 return 1 if ($r_min < $c->{r});
3471 return 1 if ($r_max > $c->{r});
3472 }
3473 }
3474 return 0 if (defined $limit && --$limit < 0);
3475 show_commit($c);
3476 return 1;
3477 }
3478
3479 sub show_commit {
3480 my $c = shift;
3481 if ($oneline) {
3482 my $x = "\n";
3483 if (my $l = $c->{l}) {
3484 while ($l->[0] =~ /^\s*$/) { shift @$l }
3485 $x = $l->[0];
3486 }
3487 $l_fmt ||= 'A' . length($c->{r});
3488 print 'r',pack($l_fmt, $c->{r}),' | ';
3489 print "$c->{c} | " if $show_commit;
3490 print $x;
3491 } else {
3492 show_commit_normal($c);
3493 }
3494 }
3495
3496 sub show_commit_changed_paths {
3497 my ($c) = @_;
3498 return unless $c->{changed};
3499 print "Changed paths:\n", @{$c->{changed}};
3500 }
3501
3502 sub show_commit_normal {
3503 my ($c) = @_;
3504 print '-' x72, "\nr$c->{r} | ";
3505 print "$c->{c} | " if $show_commit;
3506 print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
3507 localtime($c->{t_utc})), ' | ';
3508 my $nr_line = 0;
3509
3510 if (my $l = $c->{l}) {
3511 while ($l->[$#$l] eq "\n" && $#$l > 0
3512 && $l->[($#$l - 1)] eq "\n") {
3513 pop @$l;
3514 }
3515 $nr_line = scalar @$l;
3516 if (!$nr_line) {
3517 print "1 line\n\n\n";
3518 } else {
3519 if ($nr_line == 1) {
3520 $nr_line = '1 line';
3521 } else {
3522 $nr_line .= ' lines';
3523 }
3524 print $nr_line, "\n";
3525 show_commit_changed_paths($c);
3526 print "\n";
3527 print $_ foreach @$l;
3528 }
3529 } else {
3530 print "1 line\n";
3531 show_commit_changed_paths($c);
3532 print "\n";
3533
3534 }
3535 foreach my $x (qw/raw stat diff/) {
3536 if ($c->{$x}) {
3537 print "\n";
3538 print $_ foreach @{$c->{$x}}
3539 }
3540 }
3541 }
3542
3543 sub cmd_show_log {
3544 my (@args) = @_;
3545 my ($r_min, $r_max);
3546 my $r_last = -1; # prevent dupes
3547 if (defined $TZ) {
3548 $ENV{TZ} = $TZ;
3549 } else {
3550 delete $ENV{TZ};
3551 }
3552 if (defined $::_revision) {
3553 if ($::_revision =~ /^(\d+):(\d+)$/) {
3554 ($r_min, $r_max) = ($1, $2);
3555 } elsif ($::_revision =~ /^\d+$/) {
3556 $r_min = $r_max = $::_revision;
3557 } else {
3558 ::fatal "-r$::_revision is not supported, use ",
3559 "standard \'git log\' arguments instead\n";
3560 }
3561 }
3562
3563 config_pager();
3564 @args = (git_svn_log_cmd($r_min, $r_max, @args), @args);
3565 my $log = command_output_pipe(@args);
3566 run_pager();
3567 my (@k, $c, $d, $stat);
3568 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
3569 while (<$log>) {
3570 if (/^${esc_color}commit ($::sha1_short)/o) {
3571 my $cmt = $1;
3572 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
3573 $r_last = $c->{r};
3574 process_commit($c, $r_min, $r_max, \@k) or
3575 goto out;
3576 }
3577 $d = undef;
3578 $c = { c => $cmt };
3579 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
3580 get_author_info($c, $1, $2, $3);
3581 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
3582 # ignore
3583 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
3584 push @{$c->{raw}}, $_;
3585 } elsif (/^${esc_color}[ACRMDT]\t/) {
3586 # we could add $SVN->{svn_path} here, but that requires
3587 # remote access at the moment (repo_path_split)...
3588 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
3589 push @{$c->{changed}}, $_;
3590 } elsif (/^${esc_color}diff /o) {
3591 $d = 1;
3592 push @{$c->{diff}}, $_;
3593 } elsif ($d) {
3594 push @{$c->{diff}}, $_;
3595 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
3596 $esc_color*[\+\-]*$esc_color$/x) {
3597 $stat = 1;
3598 push @{$c->{stat}}, $_;
3599 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
3600 push @{$c->{stat}}, $_;
3601 $stat = undef;
3602 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
3603 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
3604 } elsif (s/^${esc_color} //o) {
3605 push @{$c->{l}}, $_;
3606 }
3607 }
3608 if ($c && defined $c->{r} && $c->{r} != $r_last) {
3609 $r_last = $c->{r};
3610 process_commit($c, $r_min, $r_max, \@k);
3611 }
3612 if (@k) {
3613 my $swap = $r_max;
3614 $r_max = $r_min;
3615 $r_min = $swap;
3616 process_commit($_, $r_min, $r_max) foreach reverse @k;
3617 }
3618 out:
3619 close $log;
3620 print '-' x72,"\n" unless $incremental || $oneline;
3621 }
3622
3623 package Git::SVN::Migration;
3624 # these version numbers do NOT correspond to actual version numbers
3625 # of git nor git-svn. They are just relative.
3626 #
3627 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
3628 #
3629 # v1 layout: .git/$id/info/url, refs/remotes/$id
3630 #
3631 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
3632 #
3633 # v3 layout: .git/svn/$id, refs/remotes/$id
3634 # - info/url may remain for backwards compatibility
3635 # - this is what we migrate up to this layout automatically,
3636 # - this will be used by git svn init on single branches
3637 # v3.1 layout (auto migrated):
3638 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
3639 # for backwards compatibility
3640 #
3641 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
3642 # - this is only created for newly multi-init-ed
3643 # repositories. Similar in spirit to the
3644 # --use-separate-remotes option in git-clone (now default)
3645 # - we do not automatically migrate to this (following
3646 # the example set by core git)
3647 use strict;
3648 use warnings;
3649 use Carp qw/croak/;
3650 use File::Path qw/mkpath/;
3651 use File::Basename qw/dirname basename/;
3652 use vars qw/$_minimize/;
3653
3654 sub migrate_from_v0 {
3655 my $git_dir = $ENV{GIT_DIR};
3656 return undef unless -d $git_dir;
3657 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3658 my $migrated = 0;
3659 while (<$fh>) {
3660 chomp;
3661 my ($id, $orig_ref) = ($_, $_);
3662 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
3663 next unless -f "$git_dir/$id/info/url";
3664 my $new_ref = "refs/remotes/$id";
3665 if (::verify_ref("$new_ref^0")) {
3666 print STDERR "W: $orig_ref is probably an old ",
3667 "branch used by an ancient version of ",
3668 "git-svn.\n",
3669 "However, $new_ref also exists.\n",
3670 "We will not be able ",
3671 "to use this branch until this ",
3672 "ambiguity is resolved.\n";
3673 next;
3674 }
3675 print STDERR "Migrating from v0 layout...\n" if !$migrated;
3676 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
3677 command_noisy('update-ref', $new_ref, $orig_ref);
3678 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
3679 $migrated++;
3680 }
3681 command_close_pipe($fh, $ctx);
3682 print STDERR "Done migrating from v0 layout...\n" if $migrated;
3683 $migrated;
3684 }
3685
3686 sub migrate_from_v1 {
3687 my $git_dir = $ENV{GIT_DIR};
3688 my $migrated = 0;
3689 return $migrated unless -d $git_dir;
3690 my $svn_dir = "$git_dir/svn";
3691
3692 # just in case somebody used 'svn' as their $id at some point...
3693 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
3694
3695 print STDERR "Migrating from a git-svn v1 layout...\n";
3696 mkpath([$svn_dir]);
3697 print STDERR "Data from a previous version of git-svn exists, but\n\t",
3698 "$svn_dir\n\t(required for this version ",
3699 "($::VERSION) of git-svn) does not. exist\n";
3700 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3701 while (<$fh>) {
3702 my $x = $_;
3703 next unless $x =~ s#^refs/remotes/##;
3704 chomp $x;
3705 next unless -f "$git_dir/$x/info/url";
3706 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
3707 next unless $u;
3708 my $dn = dirname("$git_dir/svn/$x");
3709 mkpath([$dn]) unless -d $dn;
3710 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
3711 mkpath(["$git_dir/svn/svn"]);
3712 print STDERR " - $git_dir/$x/info => ",
3713 "$git_dir/svn/$x/info\n";
3714 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
3715 croak "$!: $x";
3716 # don't worry too much about these, they probably
3717 # don't exist with repos this old (save for index,
3718 # and we can easily regenerate that)
3719 foreach my $f (qw/unhandled.log index .rev_db/) {
3720 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
3721 }
3722 } else {
3723 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
3724 rename "$git_dir/$x", "$git_dir/svn/$x" or
3725 croak "$!: $x";
3726 }
3727 $migrated++;
3728 }
3729 command_close_pipe($fh, $ctx);
3730 print STDERR "Done migrating from a git-svn v1 layout\n";
3731 $migrated;
3732 }
3733
3734 sub read_old_urls {
3735 my ($l_map, $pfx, $path) = @_;
3736 my @dir;
3737 foreach (<$path/*>) {
3738 if (-r "$_/info/url") {
3739 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
3740 my $ref_id = $pfx . basename $_;
3741 my $url = ::file_to_s("$_/info/url");
3742 $l_map->{$ref_id} = $url;
3743 } elsif (-d $_) {
3744 push @dir, $_;
3745 }
3746 }
3747 foreach (@dir) {
3748 my $x = $_;
3749 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
3750 read_old_urls($l_map, $x, $_);
3751 }
3752 }
3753
3754 sub migrate_from_v2 {
3755 my @cfg = command(qw/config -l/);
3756 return if grep /^svn-remote\..+\.url=/, @cfg;
3757 my %l_map;
3758 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
3759 my $migrated = 0;
3760
3761 foreach my $ref_id (sort keys %l_map) {
3762 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
3763 if ($@) {
3764 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
3765 }
3766 $migrated++;
3767 }
3768 $migrated;
3769 }
3770
3771 sub minimize_connections {
3772 my $r = Git::SVN::read_all_remotes();
3773 my $new_urls = {};
3774 my $root_repos = {};
3775 foreach my $repo_id (keys %$r) {
3776 my $url = $r->{$repo_id}->{url} or next;
3777 my $fetch = $r->{$repo_id}->{fetch} or next;
3778 my $ra = Git::SVN::Ra->new($url);
3779
3780 # skip existing cases where we already connect to the root
3781 if (($ra->{url} eq $ra->{repos_root}) ||
3782 (Git::SVN::sanitize_remote_name($ra->{repos_root}) eq
3783 $repo_id)) {
3784 $root_repos->{$ra->{url}} = $repo_id;
3785 next;
3786 }
3787
3788 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
3789 my $root_path = $ra->{url};
3790 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
3791 foreach my $path (keys %$fetch) {
3792 my $ref_id = $fetch->{$path};
3793 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
3794
3795 # make sure we can read when connecting to
3796 # a higher level of a repository
3797 my ($last_rev, undef) = $gs->last_rev_commit;
3798 if (!defined $last_rev) {
3799 $last_rev = eval {
3800 $root_ra->get_latest_revnum;
3801 };
3802 next if $@;
3803 }
3804 my $new = $root_path;
3805 $new .= length $path ? "/$path" : '';
3806 eval {
3807 $root_ra->get_log([$new], $last_rev, $last_rev,
3808 0, 0, 1, sub { });
3809 };
3810 next if $@;
3811 $new_urls->{$ra->{repos_root}}->{$new} =
3812 { ref_id => $ref_id,
3813 old_repo_id => $repo_id,
3814 old_path => $path };
3815 }
3816 }
3817
3818 my @emptied;
3819 foreach my $url (keys %$new_urls) {
3820 # see if we can re-use an existing [svn-remote "repo_id"]
3821 # instead of creating a(n ugly) new section:
3822 my $repo_id = $root_repos->{$url} ||
3823 Git::SVN::sanitize_remote_name($url);
3824
3825 my $fetch = $new_urls->{$url};
3826 foreach my $path (keys %$fetch) {
3827 my $x = $fetch->{$path};
3828 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
3829 my $pfx = "svn-remote.$x->{old_repo_id}";
3830
3831 my $old_fetch = quotemeta("$x->{old_path}:".
3832 "refs/remotes/$x->{ref_id}");
3833 command_noisy(qw/config --unset/,
3834 "$pfx.fetch", '^'. $old_fetch . '$');
3835 delete $r->{$x->{old_repo_id}}->
3836 {fetch}->{$x->{old_path}};
3837 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
3838 command_noisy(qw/config --unset/,
3839 "$pfx.url");
3840 push @emptied, $x->{old_repo_id}
3841 }
3842 }
3843 }
3844 if (@emptied) {
3845 my $file = $ENV{GIT_CONFIG} || $ENV{GIT_CONFIG_LOCAL} ||
3846 "$ENV{GIT_DIR}/config";
3847 print STDERR <<EOF;
3848 The following [svn-remote] sections in your config file ($file) are empty
3849 and can be safely removed:
3850 EOF
3851 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
3852 }
3853 }
3854
3855 sub migration_check {
3856 migrate_from_v0();
3857 migrate_from_v1();
3858 migrate_from_v2();
3859 minimize_connections() if $_minimize;
3860 }
3861
3862 package Git::IndexInfo;
3863 use strict;
3864 use warnings;
3865 use Git qw/command_input_pipe command_close_pipe/;
3866
3867 sub new {
3868 my ($class) = @_;
3869 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
3870 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
3871 }
3872
3873 sub remove {
3874 my ($self, $path) = @_;
3875 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
3876 return ++$self->{nr};
3877 }
3878 undef;
3879 }
3880
3881 sub update {
3882 my ($self, $mode, $hash, $path) = @_;
3883 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
3884 return ++$self->{nr};
3885 }
3886 undef;
3887 }
3888
3889 sub DESTROY {
3890 my ($self) = @_;
3891 command_close_pipe($self->{gui}, $self->{ctx});
3892 }
3893
3894 package Git::SVN::GlobSpec;
3895 use strict;
3896 use warnings;
3897
3898 sub new {
3899 my ($class, $glob) = @_;
3900 my $re = $glob;
3901 $re =~ s!/+$!!g; # no need for trailing slashes
3902 my $nr = ($re =~ s!^(.*)\*(.*)$!\(\[^/\]+\)!g);
3903 my ($left, $right) = ($1, $2);
3904 if ($nr > 1) {
3905 die "Only one '*' wildcard expansion ",
3906 "is supported (got $nr): '$glob'\n";
3907 } elsif ($nr == 0) {
3908 die "One '*' is needed for glob: '$glob'\n";
3909 }
3910 $re = quotemeta($left) . $re . quotemeta($right);
3911 if (length $left && !($left =~ s!/+$!!g)) {
3912 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
3913 }
3914 if (length $right && !($right =~ s!^/+!!g)) {
3915 die "Missing leading '/' on right side of: '$glob' ($right)\n";
3916 }
3917 my $left_re = qr/^\/\Q$left\E(\/|$)/;
3918 bless { left => $left, right => $right, left_regex => $left_re,
3919 regex => qr/$re/, glob => $glob }, $class;
3920 }
3921
3922 sub full_path {
3923 my ($self, $path) = @_;
3924 return (length $self->{left} ? "$self->{left}/" : '') .
3925 $path . (length $self->{right} ? "/$self->{right}" : '');
3926 }
3927
3928 __END__
3929
3930 Data structures:
3931
3932
3933 $remotes = { # returned by read_all_remotes()
3934 'svn' => {
3935 # svn-remote.svn.url=https://svn.musicpd.org
3936 url => 'https://svn.musicpd.org',
3937 # svn-remote.svn.fetch=mpd/trunk:trunk
3938 fetch => {
3939 'mpd/trunk' => 'trunk',
3940 },
3941 # svn-remote.svn.tags=mpd/tags/*:tags/*
3942 tags => {
3943 path => {
3944 left => 'mpd/tags',
3945 right => '',
3946 regex => qr!mpd/tags/([^/]+)$!,
3947 glob => 'tags/*',
3948 },
3949 ref => {
3950 left => 'tags',
3951 right => '',
3952 regex => qr!tags/([^/]+)$!,
3953 glob => 'tags/*',
3954 },
3955 }
3956 }
3957 };
3958
3959 $log_entry hashref as returned by libsvn_log_entry()
3960 {
3961 log => 'whitespace-formatted log entry
3962 ', # trailing newline is preserved
3963 revision => '8', # integer
3964 date => '2004-02-24T17:01:44.108345Z', # commit date
3965 author => 'committer name'
3966 };
3967
3968
3969 # this is generated by generate_diff();
3970 @mods = array of diff-index line hashes, each element represents one line
3971 of diff-index output
3972
3973 diff-index line ($m hash)
3974 {
3975 mode_a => first column of diff-index output, no leading ':',
3976 mode_b => second column of diff-index output,
3977 sha1_b => sha1sum of the final blob,
3978 chg => change type [MCRADT],
3979 file_a => original file name of a file (iff chg is 'C' or 'R')
3980 file_b => new/current file name of a file (any chg)
3981 }
3982 ;
3983
3984 # retval of read_url_paths{,_all}();
3985 $l_map = {
3986 # repository root url
3987 'https://svn.musicpd.org' => {
3988 # repository path # GIT_SVN_ID
3989 'mpd/trunk' => 'trunk',
3990 'mpd/tags/0.11.5' => 'tags/0.11.5',
3991 },
3992 }
3993
3994 Notes:
3995 I don't trust the each() function on unless I created %hash myself
3996 because the internal iterator may not have started at base.