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Avoid segfault with 'git branch' when the HEAD is detached
[git/mingw/4msysgit/wingit-dll.git] / git-svn.perl
blob001a1d8efffe804898ddc31e1f64924a429e4c0e
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 $_repository
8 $_q $_authors %users/;
9 $AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
10 $VERSION = '@@GIT_VERSION@@';
11
12 # From which subdir have we been invoked?
13 my $cmd_dir_prefix = eval {
14 command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
15 } || '';
16
17 my $git_dir_user_set = 1 if defined $ENV{GIT_DIR};
18 $ENV{GIT_DIR} ||= '.git';
19 $Git::SVN::default_repo_id = 'svn';
20 $Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
21 $Git::SVN::Ra::_log_window_size = 100;
22
23 $Git::SVN::Log::TZ = $ENV{TZ};
24 $ENV{TZ} = 'UTC';
25 $| = 1; # unbuffer STDOUT
26
27 sub fatal (@) { print STDERR "@_\n"; exit 1 }
28 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
29 require SVN::Ra;
30 require SVN::Delta;
31 if ($SVN::Core::VERSION lt '1.1.0') {
32 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
33 }
34 push @Git::SVN::Ra::ISA, 'SVN::Ra';
35 push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
36 push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
37 use Carp qw/croak/;
38 use Digest::MD5;
39 use IO::File qw//;
40 use File::Basename qw/dirname basename/;
41 use File::Path qw/mkpath/;
42 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
43 use IPC::Open3;
44 use Git;
45
46 BEGIN {
47 # import functions from Git into our packages, en masse
48 no strict 'refs';
49 foreach (qw/command command_oneline command_noisy command_output_pipe
50 command_input_pipe command_close_pipe/) {
51 for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher
52 Git::SVN::Migration Git::SVN::Log Git::SVN),
53 __PACKAGE__) {
54 *{"${package}::$_"} = \&{"Git::$_"};
55 }
56 }
57 }
58
59 my ($SVN);
60
61 $sha1 = qr/[a-f\d]{40}/;
62 $sha1_short = qr/[a-f\d]{4,40}/;
63 my ($_stdin, $_help, $_edit,
64 $_message, $_file,
65 $_template, $_shared,
66 $_version, $_fetch_all, $_no_rebase,
67 $_merge, $_strategy, $_dry_run, $_local,
68 $_prefix, $_no_checkout, $_url, $_verbose,
69 $_git_format, $_commit_url, $_tag);
70 $Git::SVN::_follow_parent = 1;
71 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
72 'config-dir=s' => \$Git::SVN::Ra::config_dir,
73 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
74 'ignore-paths=s' => \$SVN::Git::Fetcher::_ignore_regex );
75 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
76 'authors-file|A=s' => \$_authors,
77 'repack:i' => \$Git::SVN::_repack,
78 'noMetadata' => \$Git::SVN::_no_metadata,
79 'useSvmProps' => \$Git::SVN::_use_svm_props,
80 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
81 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
82 'no-checkout' => \$_no_checkout,
83 'quiet|q' => \$_q,
84 'repack-flags|repack-args|repack-opts=s' =>
85 \$Git::SVN::_repack_flags,
86 'use-log-author' => \$Git::SVN::_use_log_author,
87 'add-author-from' => \$Git::SVN::_add_author_from,
88 'localtime' => \$Git::SVN::_localtime,
89 %remote_opts );
90
91 my ($_trunk, $_tags, $_branches, $_stdlayout);
92 my %icv;
93 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
94 'trunk|T=s' => \$_trunk, 'tags|t=s' => \$_tags,
95 'branches|b=s' => \$_branches, 'prefix=s' => \$_prefix,
96 'stdlayout|s' => \$_stdlayout,
97 'minimize-url|m' => \$Git::SVN::_minimize_url,
98 'no-metadata' => sub { $icv{noMetadata} = 1 },
99 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
100 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
101 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
102 %remote_opts );
103 my %cmt_opts = ( 'edit|e' => \$_edit,
104 'rmdir' => \$SVN::Git::Editor::_rmdir,
105 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
106 'l=i' => \$SVN::Git::Editor::_rename_limit,
107 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
108 );
109
110 my %cmd = (
111 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
112 { 'revision|r=s' => \$_revision,
113 'fetch-all|all' => \$_fetch_all,
114 %fc_opts } ],
115 clone => [ \&cmd_clone, "Initialize and fetch revisions",
116 { 'revision|r=s' => \$_revision,
117 %fc_opts, %init_opts } ],
118 init => [ \&cmd_init, "Initialize a repo for tracking" .
119 " (requires URL argument)",
120 \%init_opts ],
121 'multi-init' => [ \&cmd_multi_init,
122 "Deprecated alias for ".
123 "'$0 init -T<trunk> -b<branches> -t<tags>'",
124 \%init_opts ],
125 dcommit => [ \&cmd_dcommit,
126 'Commit several diffs to merge with upstream',
127 { 'merge|m|M' => \$_merge,
128 'strategy|s=s' => \$_strategy,
129 'verbose|v' => \$_verbose,
130 'dry-run|n' => \$_dry_run,
131 'fetch-all|all' => \$_fetch_all,
132 'commit-url=s' => \$_commit_url,
133 'revision|r=i' => \$_revision,
134 'no-rebase' => \$_no_rebase,
135 %cmt_opts, %fc_opts } ],
136 branch => [ \&cmd_branch,
137 'Create a branch in the SVN repository',
138 { 'message|m=s' => \$_message,
139 'dry-run|n' => \$_dry_run,
140 'tag|t' => \$_tag } ],
141 tag => [ sub { $_tag = 1; cmd_branch(@_) },
142 'Create a tag in the SVN repository',
143 { 'message|m=s' => \$_message,
144 'dry-run|n' => \$_dry_run } ],
145 'set-tree' => [ \&cmd_set_tree,
146 "Set an SVN repository to a git tree-ish",
147 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
148 'create-ignore' => [ \&cmd_create_ignore,
149 'Create a .gitignore per svn:ignore',
150 { 'revision|r=i' => \$_revision
151 } ],
152 'propget' => [ \&cmd_propget,
153 'Print the value of a property on a file or directory',
154 { 'revision|r=i' => \$_revision } ],
155 'proplist' => [ \&cmd_proplist,
156 'List all properties of a file or directory',
157 { 'revision|r=i' => \$_revision } ],
158 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
159 { 'revision|r=i' => \$_revision
160 } ],
161 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
162 { 'revision|r=i' => \$_revision
163 } ],
164 'multi-fetch' => [ \&cmd_multi_fetch,
165 "Deprecated alias for $0 fetch --all",
166 { 'revision|r=s' => \$_revision, %fc_opts } ],
167 'migrate' => [ sub { },
168 # no-op, we automatically run this anyways,
169 'Migrate configuration/metadata/layout from
170 previous versions of git-svn',
171 { 'minimize' => \$Git::SVN::Migration::_minimize,
172 %remote_opts } ],
173 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
174 { 'limit=i' => \$Git::SVN::Log::limit,
175 'revision|r=s' => \$_revision,
176 'verbose|v' => \$Git::SVN::Log::verbose,
177 'incremental' => \$Git::SVN::Log::incremental,
178 'oneline' => \$Git::SVN::Log::oneline,
179 'show-commit' => \$Git::SVN::Log::show_commit,
180 'non-recursive' => \$Git::SVN::Log::non_recursive,
181 'authors-file|A=s' => \$_authors,
182 'color' => \$Git::SVN::Log::color,
183 'pager=s' => \$Git::SVN::Log::pager
184 } ],
185 'find-rev' => [ \&cmd_find_rev,
186 "Translate between SVN revision numbers and tree-ish",
187 {} ],
188 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
189 { 'merge|m|M' => \$_merge,
190 'verbose|v' => \$_verbose,
191 'strategy|s=s' => \$_strategy,
192 'local|l' => \$_local,
193 'fetch-all|all' => \$_fetch_all,
194 'dry-run|n' => \$_dry_run,
195 %fc_opts } ],
196 'commit-diff' => [ \&cmd_commit_diff,
197 'Commit a diff between two trees',
198 { 'message|m=s' => \$_message,
199 'file|F=s' => \$_file,
200 'revision|r=s' => \$_revision,
201 %cmt_opts } ],
202 'info' => [ \&cmd_info,
203 "Show info about the latest SVN revision
204 on the current branch",
205 { 'url' => \$_url, } ],
206 'blame' => [ \&Git::SVN::Log::cmd_blame,
207 "Show what revision and author last modified each line of a file",
208 { 'git-format' => \$_git_format } ],
209 );
210
211 my $cmd;
212 for (my $i = 0; $i < @ARGV; $i++) {
213 if (defined $cmd{$ARGV[$i]}) {
214 $cmd = $ARGV[$i];
215 splice @ARGV, $i, 1;
216 last;
217 }
218 };
219
220 # make sure we're always running at the top-level working directory
221 unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
222 unless (-d $ENV{GIT_DIR}) {
223 if ($git_dir_user_set) {
224 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
225 "but it is not a directory\n";
226 }
227 my $git_dir = delete $ENV{GIT_DIR};
228 my $cdup = undef;
229 git_cmd_try {
230 $cdup = command_oneline(qw/rev-parse --show-cdup/);
231 $git_dir = '.' unless ($cdup);
232 chomp $cdup if ($cdup);
233 $cdup = "." unless ($cdup && length $cdup);
234 } "Already at toplevel, but $git_dir not found\n";
235 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
236 unless (-d $git_dir) {
237 die "$git_dir still not found after going to ",
238 "'$cdup'\n";
239 }
240 $ENV{GIT_DIR} = $git_dir;
241 }
242 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
243 }
244
245 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
246
247 read_repo_config(\%opts);
248 if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
249 Getopt::Long::Configure('pass_through');
250 }
251 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
252 'minimize-connections' => \$Git::SVN::Migration::_minimize,
253 'id|i=s' => \$Git::SVN::default_ref_id,
254 'svn-remote|remote|R=s' => sub {
255 $Git::SVN::no_reuse_existing = 1;
256 $Git::SVN::default_repo_id = $_[1] });
257 exit 1 if (!$rv && $cmd && $cmd ne 'log');
258
259 usage(0) if $_help;
260 version() if $_version;
261 usage(1) unless defined $cmd;
262 load_authors() if $_authors;
263
264 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
265 Git::SVN::Migration::migration_check();
266 }
267 Git::SVN::init_vars();
268 eval {
269 Git::SVN::verify_remotes_sanity();
270 $cmd{$cmd}->[0]->(@ARGV);
271 };
272 fatal $@ if $@;
273 post_fetch_checkout();
274 exit 0;
275
276 ####################### primary functions ######################
277 sub usage {
278 my $exit = shift || 0;
279 my $fd = $exit ? \*STDERR : \*STDOUT;
280 print $fd <<"";
281 git-svn - bidirectional operations between a single Subversion tree and git
282 Usage: git svn <command> [options] [arguments]\n
283
284 print $fd "Available commands:\n" unless $cmd;
285
286 foreach (sort keys %cmd) {
287 next if $cmd && $cmd ne $_;
288 next if /^multi-/; # don't show deprecated commands
289 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
290 foreach (sort keys %{$cmd{$_}->[2]}) {
291 # mixed-case options are for .git/config only
292 next if /[A-Z]/ && /^[a-z]+$/i;
293 # prints out arguments as they should be passed:
294 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
295 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
296 "--$_" : "-$_" }
297 split /\|/,$_)," $x\n";
298 }
299 }
300 print $fd <<"";
301 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
302 arbitrary identifier if you're tracking multiple SVN branches/repositories in
303 one git repository and want to keep them separate. See git-svn(1) for more
304 information.
305
306 exit $exit;
307 }
308
309 sub version {
310 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
311 exit 0;
312 }
313
314 sub do_git_init_db {
315 unless (-d $ENV{GIT_DIR}) {
316 my @init_db = ('init');
317 push @init_db, "--template=$_template" if defined $_template;
318 if (defined $_shared) {
319 if ($_shared =~ /[a-z]/) {
320 push @init_db, "--shared=$_shared";
321 } else {
322 push @init_db, "--shared";
323 }
324 }
325 command_noisy(@init_db);
326 $_repository = Git->repository(Repository => ".git");
327 }
328 my $set;
329 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
330 foreach my $i (keys %icv) {
331 die "'$set' and '$i' cannot both be set\n" if $set;
332 next unless defined $icv{$i};
333 command_noisy('config', "$pfx.$i", $icv{$i});
334 $set = $i;
335 }
336 }
337
338 sub init_subdir {
339 my $repo_path = shift or return;
340 mkpath([$repo_path]) unless -d $repo_path;
341 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
342 $ENV{GIT_DIR} = '.git';
343 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
344 }
345
346 sub cmd_clone {
347 my ($url, $path) = @_;
348 if (!defined $path &&
349 (defined $_trunk || defined $_branches || defined $_tags ||
350 defined $_stdlayout) &&
351 $url !~ m#^[a-z\+]+://#) {
352 $path = $url;
353 }
354 $path = basename($url) if !defined $path || !length $path;
355 cmd_init($url, $path);
356 Git::SVN::fetch_all($Git::SVN::default_repo_id);
357 }
358
359 sub cmd_init {
360 if (defined $_stdlayout) {
361 $_trunk = 'trunk' if (!defined $_trunk);
362 $_tags = 'tags' if (!defined $_tags);
363 $_branches = 'branches' if (!defined $_branches);
364 }
365 if (defined $_trunk || defined $_branches || defined $_tags) {
366 return cmd_multi_init(@_);
367 }
368 my $url = shift or die "SVN repository location required ",
369 "as a command-line argument\n";
370 init_subdir(@_);
371 do_git_init_db();
372
373 Git::SVN->init($url);
374 }
375
376 sub cmd_fetch {
377 if (grep /^\d+=./, @_) {
378 die "'<rev>=<commit>' fetch arguments are ",
379 "no longer supported.\n";
380 }
381 my ($remote) = @_;
382 if (@_ > 1) {
383 die "Usage: $0 fetch [--all] [svn-remote]\n";
384 }
385 $remote ||= $Git::SVN::default_repo_id;
386 if ($_fetch_all) {
387 cmd_multi_fetch();
388 } else {
389 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
390 }
391 }
392
393 sub cmd_set_tree {
394 my (@commits) = @_;
395 if ($_stdin || !@commits) {
396 print "Reading from stdin...\n";
397 @commits = ();
398 while (<STDIN>) {
399 if (/\b($sha1_short)\b/o) {
400 unshift @commits, $1;
401 }
402 }
403 }
404 my @revs;
405 foreach my $c (@commits) {
406 my @tmp = command('rev-parse',$c);
407 if (scalar @tmp == 1) {
408 push @revs, $tmp[0];
409 } elsif (scalar @tmp > 1) {
410 push @revs, reverse(command('rev-list',@tmp));
411 } else {
412 fatal "Failed to rev-parse $c";
413 }
414 }
415 my $gs = Git::SVN->new;
416 my ($r_last, $cmt_last) = $gs->last_rev_commit;
417 $gs->fetch;
418 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
419 fatal "There are new revisions that were fetched ",
420 "and need to be merged (or acknowledged) ",
421 "before committing.\nlast rev: $r_last\n",
422 " current: $gs->{last_rev}";
423 }
424 $gs->set_tree($_) foreach @revs;
425 print "Done committing ",scalar @revs," revisions to SVN\n";
426 unlink $gs->{index};
427 }
428
429 sub cmd_dcommit {
430 my $head = shift;
431 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) }
432 'Cannot dcommit with a dirty index. Commit your changes first, '
433 . "or stash them with `git stash'.\n";
434 $head ||= 'HEAD';
435 my @refs;
436 my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
437 unless ($gs) {
438 die "Unable to determine upstream SVN information from ",
439 "$head history.\nPerhaps the repository is empty.";
440 }
441 $url = defined $_commit_url ? $_commit_url : $gs->full_url;
442 my $last_rev = $_revision if defined $_revision;
443 if ($url) {
444 print "Committing to $url ...\n";
445 }
446 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
447 if ($_no_rebase && scalar(@$linear_refs) > 1) {
448 warn "Attempting to commit more than one change while ",
449 "--no-rebase is enabled.\n",
450 "If these changes depend on each other, re-running ",
451 "without --no-rebase may be required."
452 }
453 my $expect_url = $url;
454 Git::SVN::remove_username($expect_url);
455 while (1) {
456 my $d = shift @$linear_refs or last;
457 unless (defined $last_rev) {
458 (undef, $last_rev, undef) = cmt_metadata("$d~1");
459 unless (defined $last_rev) {
460 fatal "Unable to extract revision information ",
461 "from commit $d~1";
462 }
463 }
464 if ($_dry_run) {
465 print "diff-tree $d~1 $d\n";
466 } else {
467 my $cmt_rev;
468 my %ed_opts = ( r => $last_rev,
469 log => get_commit_entry($d)->{log},
470 ra => Git::SVN::Ra->new($url),
471 config => SVN::Core::config_get_config(
472 $Git::SVN::Ra::config_dir
473 ),
474 tree_a => "$d~1",
475 tree_b => $d,
476 editor_cb => sub {
477 print "Committed r$_[0]\n";
478 $cmt_rev = $_[0];
479 },
480 svn_path => '');
481 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
482 print "No changes\n$d~1 == $d\n";
483 } elsif ($parents->{$d} && @{$parents->{$d}}) {
484 $gs->{inject_parents_dcommit}->{$cmt_rev} =
485 $parents->{$d};
486 }
487 $_fetch_all ? $gs->fetch_all : $gs->fetch;
488 $last_rev = $cmt_rev;
489 next if $_no_rebase;
490
491 # we always want to rebase against the current HEAD,
492 # not any head that was passed to us
493 my @diff = command('diff-tree', $d,
494 $gs->refname, '--');
495 my @finish;
496 if (@diff) {
497 @finish = rebase_cmd();
498 print STDERR "W: $d and ", $gs->refname,
499 " differ, using @finish:\n",
500 join("\n", @diff), "\n";
501 } else {
502 print "No changes between current HEAD and ",
503 $gs->refname,
504 "\nResetting to the latest ",
505 $gs->refname, "\n";
506 @finish = qw/reset --mixed/;
507 }
508 command_noisy(@finish, $gs->refname);
509 if (@diff) {
510 @refs = ();
511 my ($url_, $rev_, $uuid_, $gs_) =
512 working_head_info($head, \@refs);
513 my ($linear_refs_, $parents_) =
514 linearize_history($gs_, \@refs);
515 if (scalar(@$linear_refs) !=
516 scalar(@$linear_refs_)) {
517 fatal "# of revisions changed ",
518 "\nbefore:\n",
519 join("\n", @$linear_refs),
520 "\n\nafter:\n",
521 join("\n", @$linear_refs_), "\n",
522 'If you are attempting to commit ',
523 "merges, try running:\n\t",
524 'git rebase --interactive',
525 '--preserve-merges ',
526 $gs->refname,
527 "\nBefore dcommitting";
528 }
529 if ($url_ ne $expect_url) {
530 fatal "URL mismatch after rebase: ",
531 "$url_ != $expect_url";
532 }
533 if ($uuid_ ne $uuid) {
534 fatal "uuid mismatch after rebase: ",
535 "$uuid_ != $uuid";
536 }
537 # remap parents
538 my (%p, @l, $i);
539 for ($i = 0; $i < scalar @$linear_refs; $i++) {
540 my $new = $linear_refs_->[$i] or next;
541 $p{$new} =
542 $parents->{$linear_refs->[$i]};
543 push @l, $new;
544 }
545 $parents = \%p;
546 $linear_refs = \@l;
547 }
548 }
549 }
550 unlink $gs->{index};
551 }
552
553 sub cmd_branch {
554 my ($branch_name, $head) = @_;
555
556 unless (defined $branch_name && length $branch_name) {
557 die(($_tag ? "tag" : "branch") . " name required\n");
558 }
559 $head ||= 'HEAD';
560
561 my ($src, $rev, undef, $gs) = working_head_info($head);
562
563 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
564 my $glob = $remote->{ $_tag ? 'tags' : 'branches' };
565 my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
566 my $dst = join '/', $remote->{url}, $lft, $branch_name, ($rgt || ());
567
568 my $ctx = SVN::Client->new(
569 auth => Git::SVN::Ra::_auth_providers(),
570 log_msg => sub {
571 ${ $_[0] } = defined $_message
572 ? $_message
573 : 'Create ' . ($_tag ? 'tag ' : 'branch ' )
574 . $branch_name;
575 },
576 );
577
578 eval {
579 $ctx->ls($dst, 'HEAD', 0);
580 } and die "branch ${branch_name} already exists\n";
581
582 print "Copying ${src} at r${rev} to ${dst}...\n";
583 $ctx->copy($src, $rev, $dst)
584 unless $_dry_run;
585
586 $gs->fetch_all;
587 }
588
589 sub cmd_find_rev {
590 my $revision_or_hash = shift or die "SVN or git revision required ",
591 "as a command-line argument\n";
592 my $result;
593 if ($revision_or_hash =~ /^r\d+$/) {
594 my $head = shift;
595 $head ||= 'HEAD';
596 my @refs;
597 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
598 unless ($gs) {
599 die "Unable to determine upstream SVN information from ",
600 "$head history\n";
601 }
602 my $desired_revision = substr($revision_or_hash, 1);
603 $result = $gs->rev_map_get($desired_revision, $uuid);
604 } else {
605 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
606 $result = $rev;
607 }
608 print "$result\n" if $result;
609 }
610
611 sub cmd_rebase {
612 command_noisy(qw/update-index --refresh/);
613 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
614 unless ($gs) {
615 die "Unable to determine upstream SVN information from ",
616 "working tree history\n";
617 }
618 if ($_dry_run) {
619 print "Remote Branch: " . $gs->refname . "\n";
620 print "SVN URL: " . $url . "\n";
621 return;
622 }
623 if (command(qw/diff-index HEAD --/)) {
624 print STDERR "Cannot rebase with uncommited changes:\n";
625 command_noisy('status');
626 exit 1;
627 }
628 unless ($_local) {
629 # rebase will checkout for us, so no need to do it explicitly
630 $_no_checkout = 'true';
631 $_fetch_all ? $gs->fetch_all : $gs->fetch;
632 }
633 command_noisy(rebase_cmd(), $gs->refname);
634 }
635
636 sub cmd_show_ignore {
637 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
638 $gs ||= Git::SVN->new;
639 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
640 $gs->prop_walk($gs->{path}, $r, sub {
641 my ($gs, $path, $props) = @_;
642 print STDOUT "\n# $path\n";
643 my $s = $props->{'svn:ignore'} or return;
644 $s =~ s/[\r\n]+/\n/g;
645 chomp $s;
646 $s =~ s#^#$path#gm;
647 print STDOUT "$s\n";
648 });
649 }
650
651 sub cmd_show_externals {
652 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
653 $gs ||= Git::SVN->new;
654 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
655 $gs->prop_walk($gs->{path}, $r, sub {
656 my ($gs, $path, $props) = @_;
657 print STDOUT "\n# $path\n";
658 my $s = $props->{'svn:externals'} or return;
659 $s =~ s/[\r\n]+/\n/g;
660 chomp $s;
661 $s =~ s#^#$path#gm;
662 print STDOUT "$s\n";
663 });
664 }
665
666 sub cmd_create_ignore {
667 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
668 $gs ||= Git::SVN->new;
669 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
670 $gs->prop_walk($gs->{path}, $r, sub {
671 my ($gs, $path, $props) = @_;
672 # $path is of the form /path/to/dir/
673 my $ignore = '.' . $path . '.gitignore';
674 my $s = $props->{'svn:ignore'} or return;
675 open(GITIGNORE, '>', $ignore)
676 or fatal("Failed to open `$ignore' for writing: $!");
677 $s =~ s/[\r\n]+/\n/g;
678 chomp $s;
679 # Prefix all patterns so that the ignore doesn't apply
680 # to sub-directories.
681 $s =~ s#^#/#gm;
682 print GITIGNORE "$s\n";
683 close(GITIGNORE)
684 or fatal("Failed to close `$ignore': $!");
685 command_noisy('add', '-f', $ignore);
686 });
687 }
688
689 sub canonicalize_path {
690 my ($path) = @_;
691 my $dot_slash_added = 0;
692 if (substr($path, 0, 1) ne "/") {
693 $path = "./" . $path;
694 $dot_slash_added = 1;
695 }
696 # File::Spec->canonpath doesn't collapse x/../y into y (for a
697 # good reason), so let's do this manually.
698 $path =~ s#/+#/#g;
699 $path =~ s#/\.(?:/|$)#/#g;
700 $path =~ s#/[^/]+/\.\.##g;
701 $path =~ s#/$##g;
702 $path =~ s#^\./## if $dot_slash_added;
703 $path =~ s#^/##;
704 $path =~ s#^\.$##;
705 return $path;
706 }
707
708 # get_svnprops(PATH)
709 # ------------------
710 # Helper for cmd_propget and cmd_proplist below.
711 sub get_svnprops {
712 my $path = shift;
713 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
714 $gs ||= Git::SVN->new;
715
716 # prefix THE PATH by the sub-directory from which the user
717 # invoked us.
718 $path = $cmd_dir_prefix . $path;
719 fatal("No such file or directory: $path") unless -e $path;
720 my $is_dir = -d $path ? 1 : 0;
721 $path = $gs->{path} . '/' . $path;
722
723 # canonicalize the path (otherwise libsvn will abort or fail to
724 # find the file)
725 $path = canonicalize_path($path);
726
727 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
728 my $props;
729 if ($is_dir) {
730 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
731 }
732 else {
733 (undef, $props) = $gs->ra->get_file($path, $r, undef);
734 }
735 return $props;
736 }
737
738 # cmd_propget (PROP, PATH)
739 # ------------------------
740 # Print the SVN property PROP for PATH.
741 sub cmd_propget {
742 my ($prop, $path) = @_;
743 $path = '.' if not defined $path;
744 usage(1) if not defined $prop;
745 my $props = get_svnprops($path);
746 if (not defined $props->{$prop}) {
747 fatal("`$path' does not have a `$prop' SVN property.");
748 }
749 print $props->{$prop} . "\n";
750 }
751
752 # cmd_proplist (PATH)
753 # -------------------
754 # Print the list of SVN properties for PATH.
755 sub cmd_proplist {
756 my $path = shift;
757 $path = '.' if not defined $path;
758 my $props = get_svnprops($path);
759 print "Properties on '$path':\n";
760 foreach (sort keys %{$props}) {
761 print " $_\n";
762 }
763 }
764
765 sub cmd_multi_init {
766 my $url = shift;
767 unless (defined $_trunk || defined $_branches || defined $_tags) {
768 usage(1);
769 }
770
771 # there are currently some bugs that prevent multi-init/multi-fetch
772 # setups from working well without this.
773 $Git::SVN::_minimize_url = 1;
774
775 $_prefix = '' unless defined $_prefix;
776 if (defined $url) {
777 $url =~ s#/+$##;
778 init_subdir(@_);
779 }
780 do_git_init_db();
781 if (defined $_trunk) {
782 my $trunk_ref = $_prefix . 'trunk';
783 # try both old-style and new-style lookups:
784 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
785 unless ($gs_trunk) {
786 my ($trunk_url, $trunk_path) =
787 complete_svn_url($url, $_trunk);
788 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
789 undef, $trunk_ref);
790 }
791 }
792 return unless defined $_branches || defined $_tags;
793 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
794 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
795 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
796 }
797
798 sub cmd_multi_fetch {
799 my $remotes = Git::SVN::read_all_remotes();
800 foreach my $repo_id (sort keys %$remotes) {
801 if ($remotes->{$repo_id}->{url}) {
802 Git::SVN::fetch_all($repo_id, $remotes);
803 }
804 }
805 }
806
807 # this command is special because it requires no metadata
808 sub cmd_commit_diff {
809 my ($ta, $tb, $url) = @_;
810 my $usage = "Usage: $0 commit-diff -r<revision> ".
811 "<tree-ish> <tree-ish> [<URL>]";
812 fatal($usage) if (!defined $ta || !defined $tb);
813 my $svn_path = '';
814 if (!defined $url) {
815 my $gs = eval { Git::SVN->new };
816 if (!$gs) {
817 fatal("Needed URL or usable git-svn --id in ",
818 "the command-line\n", $usage);
819 }
820 $url = $gs->{url};
821 $svn_path = $gs->{path};
822 }
823 unless (defined $_revision) {
824 fatal("-r|--revision is a required argument\n", $usage);
825 }
826 if (defined $_message && defined $_file) {
827 fatal("Both --message/-m and --file/-F specified ",
828 "for the commit message.\n",
829 "I have no idea what you mean");
830 }
831 if (defined $_file) {
832 $_message = file_to_s($_file);
833 } else {
834 $_message ||= get_commit_entry($tb)->{log};
835 }
836 my $ra ||= Git::SVN::Ra->new($url);
837 my $r = $_revision;
838 if ($r eq 'HEAD') {
839 $r = $ra->get_latest_revnum;
840 } elsif ($r !~ /^\d+$/) {
841 die "revision argument: $r not understood by git-svn\n";
842 }
843 my %ed_opts = ( r => $r,
844 log => $_message,
845 ra => $ra,
846 tree_a => $ta,
847 tree_b => $tb,
848 editor_cb => sub { print "Committed r$_[0]\n" },
849 svn_path => $svn_path );
850 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
851 print "No changes\n$ta == $tb\n";
852 }
853 }
854
855 sub escape_uri_only {
856 my ($uri) = @_;
857 my @tmp;
858 foreach (split m{/}, $uri) {
859 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
860 push @tmp, $_;
861 }
862 join('/', @tmp);
863 }
864
865 sub escape_url {
866 my ($url) = @_;
867 if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) {
868 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
869 $url = "$scheme://$domain$uri";
870 }
871 $url;
872 }
873
874 sub cmd_info {
875 my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
876 my $fullpath = canonicalize_path($cmd_dir_prefix . $path);
877 if (exists $_[1]) {
878 die "Too many arguments specified\n";
879 }
880
881 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
882
883 if (!$file_type && !$diff_status) {
884 print STDERR "svn: '$path' is not under version control\n";
885 exit 1;
886 }
887
888 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
889 unless ($gs) {
890 die "Unable to determine upstream SVN information from ",
891 "working tree history\n";
892 }
893
894 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
895 $path = "." if $path eq "";
896
897 my $full_url = $url . ($fullpath eq "" ? "" : "/$fullpath");
898
899 if ($_url) {
900 print escape_url($full_url), "\n";
901 return;
902 }
903
904 my $result = "Path: $path\n";
905 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
906 $result .= "URL: " . escape_url($full_url) . "\n";
907
908 eval {
909 my $repos_root = $gs->repos_root;
910 Git::SVN::remove_username($repos_root);
911 $result .= "Repository Root: " . escape_url($repos_root) . "\n";
912 };
913 if ($@) {
914 $result .= "Repository Root: (offline)\n";
915 }
916 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
917 ($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir");
918 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
919
920 $result .= "Node Kind: " .
921 ($file_type eq "dir" ? "directory" : "file") . "\n";
922
923 my $schedule = $diff_status eq "A"
924 ? "add"
925 : ($diff_status eq "D" ? "delete" : "normal");
926 $result .= "Schedule: $schedule\n";
927
928 if ($diff_status eq "A") {
929 print $result, "\n";
930 return;
931 }
932
933 my ($lc_author, $lc_rev, $lc_date_utc);
934 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $fullpath);
935 my $log = command_output_pipe(@args);
936 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
937 while (<$log>) {
938 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
939 $lc_author = $1;
940 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
941 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
942 (undef, $lc_rev, undef) = ::extract_metadata($1);
943 }
944 }
945 close $log;
946
947 Git::SVN::Log::set_local_timezone();
948
949 $result .= "Last Changed Author: $lc_author\n";
950 $result .= "Last Changed Rev: $lc_rev\n";
951 $result .= "Last Changed Date: " .
952 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
953
954 if ($file_type ne "dir") {
955 my $text_last_updated_date =
956 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
957 $result .=
958 "Text Last Updated: " .
959 Git::SVN::Log::format_svn_date($text_last_updated_date) .
960 "\n";
961 my $checksum;
962 if ($diff_status eq "D") {
963 my ($fh, $ctx) =
964 command_output_pipe(qw(cat-file blob), "HEAD:$path");
965 if ($file_type eq "link") {
966 my $file_name = <$fh>;
967 $checksum = md5sum("link $file_name");
968 } else {
969 $checksum = md5sum($fh);
970 }
971 command_close_pipe($fh, $ctx);
972 } elsif ($file_type eq "link") {
973 my $file_name =
974 command(qw(cat-file blob), "HEAD:$path");
975 $checksum =
976 md5sum("link " . $file_name);
977 } else {
978 open FILE, "<", $path or die $!;
979 $checksum = md5sum(\*FILE);
980 close FILE or die $!;
981 }
982 $result .= "Checksum: " . $checksum . "\n";
983 }
984
985 print $result, "\n";
986 }
987
988 ########################### utility functions #########################
989
990 sub rebase_cmd {
991 my @cmd = qw/rebase/;
992 push @cmd, '-v' if $_verbose;
993 push @cmd, qw/--merge/ if $_merge;
994 push @cmd, "--strategy=$_strategy" if $_strategy;
995 @cmd;
996 }
997
998 sub post_fetch_checkout {
999 return if $_no_checkout;
1000 my $gs = $Git::SVN::_head or return;
1001 return if verify_ref('refs/heads/master^0');
1002
1003 my $valid_head = verify_ref('HEAD^0');
1004 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
1005 return if ($valid_head || !verify_ref('HEAD^0'));
1006
1007 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
1008 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
1009 return if -f $index;
1010
1011 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
1012 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
1013 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
1014 print STDERR "Checked out HEAD:\n ",
1015 $gs->full_url, " r", $gs->last_rev, "\n";
1016 }
1017
1018 sub complete_svn_url {
1019 my ($url, $path) = @_;
1020 $path =~ s#/+$##;
1021 if ($path !~ m#^[a-z\+]+://#) {
1022 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
1023 fatal("E: '$path' is not a complete URL ",
1024 "and a separate URL is not specified");
1025 }
1026 return ($url, $path);
1027 }
1028 return ($path, '');
1029 }
1030
1031 sub complete_url_ls_init {
1032 my ($ra, $repo_path, $switch, $pfx) = @_;
1033 unless ($repo_path) {
1034 print STDERR "W: $switch not specified\n";
1035 return;
1036 }
1037 $repo_path =~ s#/+$##;
1038 if ($repo_path =~ m#^[a-z\+]+://#) {
1039 $ra = Git::SVN::Ra->new($repo_path);
1040 $repo_path = '';
1041 } else {
1042 $repo_path =~ s#^/+##;
1043 unless ($ra) {
1044 fatal("E: '$repo_path' is not a complete URL ",
1045 "and a separate URL is not specified");
1046 }
1047 }
1048 my $url = $ra->{url};
1049 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
1050 my $k = "svn-remote.$gs->{repo_id}.url";
1051 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
1052 if ($orig_url && ($orig_url ne $gs->{url})) {
1053 die "$k already set: $orig_url\n",
1054 "wanted to set to: $gs->{url}\n";
1055 }
1056 command_oneline('config', $k, $gs->{url}) unless $orig_url;
1057 my $remote_path = "$ra->{svn_path}/$repo_path";
1058 $remote_path =~ s#/+#/#g;
1059 $remote_path =~ s#^/##g;
1060 $remote_path .= "/*" if $remote_path !~ /\*/;
1061 my ($n) = ($switch =~ /^--(\w+)/);
1062 if (length $pfx && $pfx !~ m#/$#) {
1063 die "--prefix='$pfx' must have a trailing slash '/'\n";
1064 }
1065 command_noisy('config',
1066 "svn-remote.$gs->{repo_id}.$n",
1067 "$remote_path:refs/remotes/$pfx*" .
1068 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
1069 }
1070
1071 sub verify_ref {
1072 my ($ref) = @_;
1073 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1074 { STDERR => 0 }); };
1075 }
1076
1077 sub get_tree_from_treeish {
1078 my ($treeish) = @_;
1079 # $treeish can be a symbolic ref, too:
1080 my $type = command_oneline(qw/cat-file -t/, $treeish);
1081 my $expected;
1082 while ($type eq 'tag') {
1083 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1084 }
1085 if ($type eq 'commit') {
1086 $expected = (grep /^tree /, command(qw/cat-file commit/,
1087 $treeish))[0];
1088 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1089 die "Unable to get tree from $treeish\n" unless $expected;
1090 } elsif ($type eq 'tree') {
1091 $expected = $treeish;
1092 } else {
1093 die "$treeish is a $type, expected tree, tag or commit\n";
1094 }
1095 return $expected;
1096 }
1097
1098 sub get_commit_entry {
1099 my ($treeish) = shift;
1100 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1101 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1102 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1103 open my $log_fh, '>', $commit_editmsg or croak $!;
1104
1105 my $type = command_oneline(qw/cat-file -t/, $treeish);
1106 if ($type eq 'commit' || $type eq 'tag') {
1107 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1108 $type, $treeish);
1109 my $in_msg = 0;
1110 my $author;
1111 my $saw_from = 0;
1112 my $msgbuf = "";
1113 while (<$msg_fh>) {
1114 if (!$in_msg) {
1115 $in_msg = 1 if (/^\s*$/);
1116 $author = $1 if (/^author (.*>)/);
1117 } elsif (/^git-svn-id: /) {
1118 # skip this for now, we regenerate the
1119 # correct one on re-fetch anyways
1120 # TODO: set *:merge properties or like...
1121 } else {
1122 if (/^From:/ || /^Signed-off-by:/) {
1123 $saw_from = 1;
1124 }
1125 $msgbuf .= $_;
1126 }
1127 }
1128 $msgbuf =~ s/\s+$//s;
1129 if ($Git::SVN::_add_author_from && defined($author)
1130 && !$saw_from) {
1131 $msgbuf .= "\n\nFrom: $author";
1132 }
1133 print $log_fh $msgbuf or croak $!;
1134 command_close_pipe($msg_fh, $ctx);
1135 }
1136 close $log_fh or croak $!;
1137
1138 if ($_edit || ($type eq 'tree')) {
1139 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1140 # TODO: strip out spaces, comments, like git-commit.sh
1141 system($editor, $commit_editmsg);
1142 }
1143 rename $commit_editmsg, $commit_msg or croak $!;
1144 {
1145 # SVN requires messages to be UTF-8 when entering the repo
1146 local $/;
1147 open $log_fh, '<', $commit_msg or croak $!;
1148 binmode $log_fh;
1149 chomp($log_entry{log} = <$log_fh>);
1150
1151 if (my $enc = Git::config('i18n.commitencoding')) {
1152 require Encode;
1153 Encode::from_to($log_entry{log}, $enc, 'UTF-8');
1154 }
1155 close $log_fh or croak $!;
1156 }
1157 unlink $commit_msg;
1158 \%log_entry;
1159 }
1160
1161 sub s_to_file {
1162 my ($str, $file, $mode) = @_;
1163 open my $fd,'>',$file or croak $!;
1164 print $fd $str,"\n" or croak $!;
1165 close $fd or croak $!;
1166 chmod ($mode &~ umask, $file) if (defined $mode);
1167 }
1168
1169 sub file_to_s {
1170 my $file = shift;
1171 open my $fd,'<',$file or croak "$!: file: $file\n";
1172 local $/;
1173 my $ret = <$fd>;
1174 close $fd or croak $!;
1175 $ret =~ s/\s*$//s;
1176 return $ret;
1177 }
1178
1179 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1180 sub load_authors {
1181 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1182 my $log = $cmd eq 'log';
1183 while (<$authors>) {
1184 chomp;
1185 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1186 my ($user, $name, $email) = ($1, $2, $3);
1187 if ($log) {
1188 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1189 } else {
1190 $users{$user} = [$name, $email];
1191 }
1192 }
1193 close $authors or croak $!;
1194 }
1195
1196 # convert GetOpt::Long specs for use by git-config
1197 sub read_repo_config {
1198 return unless -d $ENV{GIT_DIR};
1199 my $opts = shift;
1200 my @config_only;
1201 foreach my $o (keys %$opts) {
1202 # if we have mixedCase and a long option-only, then
1203 # it's a config-only variable that we don't need for
1204 # the command-line.
1205 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1206 my $v = $opts->{$o};
1207 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1208 $key =~ s/-//g;
1209 my $arg = 'git config';
1210 $arg .= ' --int' if ($o =~ /[:=]i$/);
1211 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1212 if (ref $v eq 'ARRAY') {
1213 chomp(my @tmp = `$arg --get-all svn.$key`);
1214 @$v = @tmp if @tmp;
1215 } else {
1216 chomp(my $tmp = `$arg --get svn.$key`);
1217 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1218 $$v = $tmp;
1219 }
1220 }
1221 }
1222 delete @$opts{@config_only} if @config_only;
1223 }
1224
1225 sub extract_metadata {
1226 my $id = shift or return (undef, undef, undef);
1227 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1228 \s([a-f\d\-]+)$/x);
1229 if (!defined $rev || !$uuid || !$url) {
1230 # some of the original repositories I made had
1231 # identifiers like this:
1232 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1233 }
1234 return ($url, $rev, $uuid);
1235 }
1236
1237 sub cmt_metadata {
1238 return extract_metadata((grep(/^git-svn-id: /,
1239 command(qw/cat-file commit/, shift)))[-1]);
1240 }
1241
1242 sub working_head_info {
1243 my ($head, $refs) = @_;
1244 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1245 my ($fh, $ctx) = command_output_pipe(@args, $head);
1246 my $hash;
1247 my %max;
1248 while (<$fh>) {
1249 if ( m{^commit ($::sha1)$} ) {
1250 unshift @$refs, $hash if $hash and $refs;
1251 $hash = $1;
1252 next;
1253 }
1254 next unless s{^\s*(git-svn-id:)}{$1};
1255 my ($url, $rev, $uuid) = extract_metadata($_);
1256 if (defined $url && defined $rev) {
1257 next if $max{$url} and $max{$url} < $rev;
1258 if (my $gs = Git::SVN->find_by_url($url)) {
1259 my $c = $gs->rev_map_get($rev, $uuid);
1260 if ($c && $c eq $hash) {
1261 close $fh; # break the pipe
1262 return ($url, $rev, $uuid, $gs);
1263 } else {
1264 $max{$url} ||= $gs->rev_map_max;
1265 }
1266 }
1267 }
1268 }
1269 command_close_pipe($fh, $ctx);
1270 (undef, undef, undef, undef);
1271 }
1272
1273 sub read_commit_parents {
1274 my ($parents, $c) = @_;
1275 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1276 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1277 @{$parents->{$c}} = split(/ /, $p);
1278 }
1279
1280 sub linearize_history {
1281 my ($gs, $refs) = @_;
1282 my %parents;
1283 foreach my $c (@$refs) {
1284 read_commit_parents(\%parents, $c);
1285 }
1286
1287 my @linear_refs;
1288 my %skip = ();
1289 my $last_svn_commit = $gs->last_commit;
1290 foreach my $c (reverse @$refs) {
1291 next if $c eq $last_svn_commit;
1292 last if $skip{$c};
1293
1294 unshift @linear_refs, $c;
1295 $skip{$c} = 1;
1296
1297 # we only want the first parent to diff against for linear
1298 # history, we save the rest to inject when we finalize the
1299 # svn commit
1300 my $fp_a = verify_ref("$c~1");
1301 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1302 if (!$fp_a || !$fp_b) {
1303 die "Commit $c\n",
1304 "has no parent commit, and therefore ",
1305 "nothing to diff against.\n",
1306 "You should be working from a repository ",
1307 "originally created by git-svn\n";
1308 }
1309 if ($fp_a ne $fp_b) {
1310 die "$c~1 = $fp_a, however parsing commit $c ",
1311 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1312 }
1313
1314 foreach my $p (@{$parents{$c}}) {
1315 $skip{$p} = 1;
1316 }
1317 }
1318 (\@linear_refs, \%parents);
1319 }
1320
1321 sub find_file_type_and_diff_status {
1322 my ($path) = @_;
1323 return ('dir', '') if $path eq '';
1324
1325 my $diff_output =
1326 command_oneline(qw(diff --cached --name-status --), $path) || "";
1327 my $diff_status = (split(' ', $diff_output))[0] || "";
1328
1329 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1330
1331 return (undef, undef) if !$diff_status && !$ls_tree;
1332
1333 if ($diff_status eq "A") {
1334 return ("link", $diff_status) if -l $path;
1335 return ("dir", $diff_status) if -d $path;
1336 return ("file", $diff_status);
1337 }
1338
1339 my $mode = (split(' ', $ls_tree))[0] || "";
1340
1341 return ("link", $diff_status) if $mode eq "120000";
1342 return ("dir", $diff_status) if $mode eq "040000";
1343 return ("file", $diff_status);
1344 }
1345
1346 sub md5sum {
1347 my $arg = shift;
1348 my $ref = ref $arg;
1349 my $md5 = Digest::MD5->new();
1350 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
1351 $md5->addfile($arg) or croak $!;
1352 } elsif ($ref eq 'SCALAR') {
1353 $md5->add($$arg) or croak $!;
1354 } elsif (!$ref) {
1355 $md5->add($arg) or croak $!;
1356 } else {
1357 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1358 }
1359 return $md5->hexdigest();
1360 }
1361
1362 package Git::SVN;
1363 use strict;
1364 use warnings;
1365 use Fcntl qw/:DEFAULT :seek/;
1366 use constant rev_map_fmt => 'NH40';
1367 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1368 $_repack $_repack_flags $_use_svm_props $_head
1369 $_use_svnsync_props $no_reuse_existing $_minimize_url
1370 $_use_log_author $_add_author_from $_localtime/;
1371 use Carp qw/croak/;
1372 use File::Path qw/mkpath/;
1373 use File::Copy qw/copy/;
1374 use IPC::Open3;
1375
1376 my ($_gc_nr, $_gc_period);
1377
1378 # properties that we do not log:
1379 my %SKIP_PROP;
1380 BEGIN {
1381 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1382 svn:special svn:executable
1383 svn:entry:committed-rev
1384 svn:entry:last-author
1385 svn:entry:uuid
1386 svn:entry:committed-date/;
1387
1388 # some options are read globally, but can be overridden locally
1389 # per [svn-remote "..."] section. Command-line options will *NOT*
1390 # override options set in an [svn-remote "..."] section
1391 no strict 'refs';
1392 for my $option (qw/follow_parent no_metadata use_svm_props
1393 use_svnsync_props/) {
1394 my $key = $option;
1395 $key =~ tr/_//d;
1396 my $prop = "-$option";
1397 *$option = sub {
1398 my ($self) = @_;
1399 return $self->{$prop} if exists $self->{$prop};
1400 my $k = "svn-remote.$self->{repo_id}.$key";
1401 eval { command_oneline(qw/config --get/, $k) };
1402 if ($@) {
1403 $self->{$prop} = ${"Git::SVN::_$option"};
1404 } else {
1405 my $v = command_oneline(qw/config --bool/,$k);
1406 $self->{$prop} = $v eq 'false' ? 0 : 1;
1407 }
1408 return $self->{$prop};
1409 }
1410 }
1411 }
1412
1413
1414 my (%LOCKFILES, %INDEX_FILES);
1415 END {
1416 unlink keys %LOCKFILES if %LOCKFILES;
1417 unlink keys %INDEX_FILES if %INDEX_FILES;
1418 }
1419
1420 sub resolve_local_globs {
1421 my ($url, $fetch, $glob_spec) = @_;
1422 return unless defined $glob_spec;
1423 my $ref = $glob_spec->{ref};
1424 my $path = $glob_spec->{path};
1425 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
1426 next unless m#^refs/remotes/$ref->{regex}$#;
1427 my $p = $1;
1428 my $pathname = desanitize_refname($path->full_path($p));
1429 my $refname = desanitize_refname($ref->full_path($p));
1430 if (my $existing = $fetch->{$pathname}) {
1431 if ($existing ne $refname) {
1432 die "Refspec conflict:\n",
1433 "existing: refs/remotes/$existing\n",
1434 " globbed: refs/remotes/$refname\n";
1435 }
1436 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
1437 $u =~ s!^\Q$url\E(/|$)!! or die
1438 "refs/remotes/$refname: '$url' not found in '$u'\n";
1439 if ($pathname ne $u) {
1440 warn "W: Refspec glob conflict ",
1441 "(ref: refs/remotes/$refname):\n",
1442 "expected path: $pathname\n",
1443 " real path: $u\n",
1444 "Continuing ahead with $u\n";
1445 next;
1446 }
1447 } else {
1448 $fetch->{$pathname} = $refname;
1449 }
1450 }
1451 }
1452
1453 sub parse_revision_argument {
1454 my ($base, $head) = @_;
1455 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1456 return ($base, $head);
1457 }
1458 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1459 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1460 return ($head, $head) if ($::_revision eq 'HEAD');
1461 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1462 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1463 die "revision argument: $::_revision not understood by git-svn\n";
1464 }
1465
1466 sub fetch_all {
1467 my ($repo_id, $remotes) = @_;
1468 if (ref $repo_id) {
1469 my $gs = $repo_id;
1470 $repo_id = undef;
1471 $repo_id = $gs->{repo_id};
1472 }
1473 $remotes ||= read_all_remotes();
1474 my $remote = $remotes->{$repo_id} or
1475 die "[svn-remote \"$repo_id\"] unknown\n";
1476 my $fetch = $remote->{fetch};
1477 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1478 my (@gs, @globs);
1479 my $ra = Git::SVN::Ra->new($url);
1480 my $uuid = $ra->get_uuid;
1481 my $head = $ra->get_latest_revnum;
1482 my $base = defined $fetch ? $head : 0;
1483
1484 # read the max revs for wildcard expansion (branches/*, tags/*)
1485 foreach my $t (qw/branches tags/) {
1486 defined $remote->{$t} or next;
1487 push @globs, $remote->{$t};
1488 my $max_rev = eval { tmp_config(qw/--int --get/,
1489 "svn-remote.$repo_id.${t}-maxRev") };
1490 if (defined $max_rev && ($max_rev < $base)) {
1491 $base = $max_rev;
1492 } elsif (!defined $max_rev) {
1493 $base = 0;
1494 }
1495 }
1496
1497 if ($fetch) {
1498 foreach my $p (sort keys %$fetch) {
1499 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1500 my $lr = $gs->rev_map_max;
1501 if (defined $lr) {
1502 $base = $lr if ($lr < $base);
1503 }
1504 push @gs, $gs;
1505 }
1506 }
1507
1508 ($base, $head) = parse_revision_argument($base, $head);
1509 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1510 }
1511
1512 sub read_all_remotes {
1513 my $r = {};
1514 my $use_svm_props = eval { command_oneline(qw/config --bool
1515 svn.useSvmProps/) };
1516 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
1517 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1518 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*(.+)\s*$!) {
1519 my ($remote, $local_ref, $_remote_ref) = ($1, $2, $3);
1520 die("svn-remote.$remote: remote ref '$_remote_ref' "
1521 . "must start with 'refs/remotes/'\n")
1522 unless $_remote_ref =~ m{^refs/remotes/(.+)};
1523 my $remote_ref = $1;
1524 $local_ref =~ s{^/}{};
1525 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1526 $r->{$remote}->{svm} = {} if $use_svm_props;
1527 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
1528 $r->{$1}->{svm} = {};
1529 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1530 $r->{$1}->{url} = $2;
1531 } elsif (m!^(.+)\.(branches|tags)=
1532 (.*):refs/remotes/(.+)\s*$/!x) {
1533 my ($p, $g) = ($3, $4);
1534 my $rs = $r->{$1}->{$2} = {
1535 t => $2,
1536 remote => $1,
1537 path => Git::SVN::GlobSpec->new($p),
1538 ref => Git::SVN::GlobSpec->new($g) };
1539 if (length($rs->{ref}->{right}) != 0) {
1540 die "The '*' glob character must be the last ",
1541 "character of '$g'\n";
1542 }
1543 }
1544 }
1545
1546 map {
1547 if (defined $r->{$_}->{svm}) {
1548 my $svm;
1549 eval {
1550 my $section = "svn-remote.$_";
1551 $svm = {
1552 source => tmp_config('--get',
1553 "$section.svm-source"),
1554 replace => tmp_config('--get',
1555 "$section.svm-replace"),
1556 }
1557 };
1558 $r->{$_}->{svm} = $svm;
1559 }
1560 } keys %$r;
1561
1562 $r;
1563 }
1564
1565 sub init_vars {
1566 $_gc_nr = $_gc_period = 1000;
1567 if (defined $_repack || defined $_repack_flags) {
1568 warn "Repack options are obsolete; they have no effect.\n";
1569 }
1570 }
1571
1572 sub verify_remotes_sanity {
1573 return unless -d $ENV{GIT_DIR};
1574 my %seen;
1575 foreach (command(qw/config -l/)) {
1576 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1577 if ($seen{$1}) {
1578 die "Remote ref refs/remote/$1 is tracked by",
1579 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1580 "Please resolve this ambiguity in ",
1581 "your git configuration file before ",
1582 "continuing\n";
1583 }
1584 $seen{$1} = $_;
1585 }
1586 }
1587 }
1588
1589 sub find_existing_remote {
1590 my ($url, $remotes) = @_;
1591 return undef if $no_reuse_existing;
1592 my $existing;
1593 foreach my $repo_id (keys %$remotes) {
1594 my $u = $remotes->{$repo_id}->{url} or next;
1595 next if $u ne $url;
1596 $existing = $repo_id;
1597 last;
1598 }
1599 $existing;
1600 }
1601
1602 sub init_remote_config {
1603 my ($self, $url, $no_write) = @_;
1604 $url =~ s!/+$!!; # strip trailing slash
1605 my $r = read_all_remotes();
1606 my $existing = find_existing_remote($url, $r);
1607 if ($existing) {
1608 unless ($no_write) {
1609 print STDERR "Using existing ",
1610 "[svn-remote \"$existing\"]\n";
1611 }
1612 $self->{repo_id} = $existing;
1613 } elsif ($_minimize_url) {
1614 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1615 $existing = find_existing_remote($min_url, $r);
1616 if ($existing) {
1617 unless ($no_write) {
1618 print STDERR "Using existing ",
1619 "[svn-remote \"$existing\"]\n";
1620 }
1621 $self->{repo_id} = $existing;
1622 }
1623 if ($min_url ne $url) {
1624 unless ($no_write) {
1625 print STDERR "Using higher level of URL: ",
1626 "$url => $min_url\n";
1627 }
1628 my $old_path = $self->{path};
1629 $self->{path} = $url;
1630 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1631 if (length $old_path) {
1632 $self->{path} .= "/$old_path";
1633 }
1634 $url = $min_url;
1635 }
1636 }
1637 my $orig_url;
1638 if (!$existing) {
1639 # verify that we aren't overwriting anything:
1640 $orig_url = eval {
1641 command_oneline('config', '--get',
1642 "svn-remote.$self->{repo_id}.url")
1643 };
1644 if ($orig_url && ($orig_url ne $url)) {
1645 die "svn-remote.$self->{repo_id}.url already set: ",
1646 "$orig_url\nwanted to set to: $url\n";
1647 }
1648 }
1649 my ($xrepo_id, $xpath) = find_ref($self->refname);
1650 if (defined $xpath) {
1651 die "svn-remote.$xrepo_id.fetch already set to track ",
1652 "$xpath:refs/remotes/", $self->refname, "\n";
1653 }
1654 unless ($no_write) {
1655 command_noisy('config',
1656 "svn-remote.$self->{repo_id}.url", $url);
1657 $self->{path} =~ s{^/}{};
1658 command_noisy('config', '--add',
1659 "svn-remote.$self->{repo_id}.fetch",
1660 "$self->{path}:".$self->refname);
1661 }
1662 $self->{url} = $url;
1663 }
1664
1665 sub find_by_url { # repos_root and, path are optional
1666 my ($class, $full_url, $repos_root, $path) = @_;
1667
1668 return undef unless defined $full_url;
1669 remove_username($full_url);
1670 remove_username($repos_root) if defined $repos_root;
1671 my $remotes = read_all_remotes();
1672 if (defined $full_url && defined $repos_root && !defined $path) {
1673 $path = $full_url;
1674 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1675 }
1676 foreach my $repo_id (keys %$remotes) {
1677 my $u = $remotes->{$repo_id}->{url} or next;
1678 remove_username($u);
1679 next if defined $repos_root && $repos_root ne $u;
1680
1681 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1682 foreach (qw/branches tags/) {
1683 resolve_local_globs($u, $fetch,
1684 $remotes->{$repo_id}->{$_});
1685 }
1686 my $p = $path;
1687 my $rwr = rewrite_root({repo_id => $repo_id});
1688 my $svm = $remotes->{$repo_id}->{svm}
1689 if defined $remotes->{$repo_id}->{svm};
1690 unless (defined $p) {
1691 $p = $full_url;
1692 my $z = $u;
1693 my $prefix = '';
1694 if ($rwr) {
1695 $z = $rwr;
1696 } elsif (defined $svm) {
1697 $z = $svm->{source};
1698 $prefix = $svm->{replace};
1699 $prefix =~ s#^\Q$u\E(?:/|$)##;
1700 $prefix =~ s#/$##;
1701 }
1702 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
1703 }
1704 foreach my $f (keys %$fetch) {
1705 next if $f ne $p;
1706 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1707 }
1708 }
1709 undef;
1710 }
1711
1712 sub init {
1713 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1714 my $self = _new($class, $repo_id, $ref_id, $path);
1715 if (defined $url) {
1716 $self->init_remote_config($url, $no_write);
1717 }
1718 $self;
1719 }
1720
1721 sub find_ref {
1722 my ($ref_id) = @_;
1723 foreach (command(qw/config -l/)) {
1724 next unless m!^svn-remote\.(.+)\.fetch=
1725 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1726 my ($repo_id, $path, $ref) = ($1, $2, $3);
1727 if ($ref eq $ref_id) {
1728 $path = '' if ($path =~ m#^\./?#);
1729 return ($repo_id, $path);
1730 }
1731 }
1732 (undef, undef, undef);
1733 }
1734
1735 sub new {
1736 my ($class, $ref_id, $repo_id, $path) = @_;
1737 if (defined $ref_id && !defined $repo_id && !defined $path) {
1738 ($repo_id, $path) = find_ref($ref_id);
1739 if (!defined $repo_id) {
1740 die "Could not find a \"svn-remote.*.fetch\" key ",
1741 "in the repository configuration matching: ",
1742 "refs/remotes/$ref_id\n";
1743 }
1744 }
1745 my $self = _new($class, $repo_id, $ref_id, $path);
1746 if (!defined $self->{path} || !length $self->{path}) {
1747 my $fetch = command_oneline('config', '--get',
1748 "svn-remote.$repo_id.fetch",
1749 ":refs/remotes/$ref_id\$") or
1750 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1751 "\":refs/remotes/$ref_id\$\" in config\n";
1752 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1753 }
1754 $self->{url} = command_oneline('config', '--get',
1755 "svn-remote.$repo_id.url") or
1756 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1757 $self->rebuild;
1758 $self;
1759 }
1760
1761 sub refname {
1762 my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
1763
1764 # It cannot end with a slash /, we'll throw up on this because
1765 # SVN can't have directories with a slash in their name, either:
1766 if ($refname =~ m{/$}) {
1767 die "ref: '$refname' ends with a trailing slash, this is ",
1768 "not permitted by git nor Subversion\n";
1769 }
1770
1771 # It cannot have ASCII control character space, tilde ~, caret ^,
1772 # colon :, question-mark ?, asterisk *, space, or open bracket [
1773 # anywhere.
1774 #
1775 # Additionally, % must be escaped because it is used for escaping
1776 # and we want our escaped refname to be reversible
1777 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
1778
1779 # no slash-separated component can begin with a dot .
1780 # /.* becomes /%2E*
1781 $refname =~ s{/\.}{/%2E}g;
1782
1783 # It cannot have two consecutive dots .. anywhere
1784 # .. becomes %2E%2E
1785 $refname =~ s{\.\.}{%2E%2E}g;
1786
1787 return $refname;
1788 }
1789
1790 sub desanitize_refname {
1791 my ($refname) = @_;
1792 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
1793 return $refname;
1794 }
1795
1796 sub svm_uuid {
1797 my ($self) = @_;
1798 return $self->{svm}->{uuid} if $self->svm;
1799 $self->ra;
1800 unless ($self->{svm}) {
1801 die "SVM UUID not cached, and reading remotely failed\n";
1802 }
1803 $self->{svm}->{uuid};
1804 }
1805
1806 sub svm {
1807 my ($self) = @_;
1808 return $self->{svm} if $self->{svm};
1809 my $svm;
1810 # see if we have it in our config, first:
1811 eval {
1812 my $section = "svn-remote.$self->{repo_id}";
1813 $svm = {
1814 source => tmp_config('--get', "$section.svm-source"),
1815 uuid => tmp_config('--get', "$section.svm-uuid"),
1816 replace => tmp_config('--get', "$section.svm-replace"),
1817 }
1818 };
1819 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1820 $self->{svm} = $svm;
1821 }
1822 $self->{svm};
1823 }
1824
1825 sub _set_svm_vars {
1826 my ($self, $ra) = @_;
1827 return $ra if $self->svm;
1828
1829 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1830 "(svm:source, svm:uuid) ",
1831 "from the following URLs:\n" );
1832 sub read_svm_props {
1833 my ($self, $ra, $path, $r) = @_;
1834 my $props = ($ra->get_dir($path, $r))[2];
1835 my $src = $props->{'svm:source'};
1836 my $uuid = $props->{'svm:uuid'};
1837 return undef if (!$src || !$uuid);
1838
1839 chomp($src, $uuid);
1840
1841 $uuid =~ m{^[0-9a-f\-]{30,}$}
1842 or die "doesn't look right - svm:uuid is '$uuid'\n";
1843
1844 # the '!' is used to mark the repos_root!/relative/path
1845 $src =~ s{/?!/?}{/};
1846 $src =~ s{/+$}{}; # no trailing slashes please
1847 # username is of no interest
1848 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1849
1850 my $replace = $ra->{url};
1851 $replace .= "/$path" if length $path;
1852
1853 my $section = "svn-remote.$self->{repo_id}";
1854 tmp_config("$section.svm-source", $src);
1855 tmp_config("$section.svm-replace", $replace);
1856 tmp_config("$section.svm-uuid", $uuid);
1857 $self->{svm} = {
1858 source => $src,
1859 uuid => $uuid,
1860 replace => $replace
1861 };
1862 }
1863
1864 my $r = $ra->get_latest_revnum;
1865 my $path = $self->{path};
1866 my %tried;
1867 while (length $path) {
1868 unless ($tried{"$self->{url}/$path"}) {
1869 return $ra if $self->read_svm_props($ra, $path, $r);
1870 $tried{"$self->{url}/$path"} = 1;
1871 }
1872 $path =~ s#/?[^/]+$##;
1873 }
1874 die "Path: '$path' should be ''\n" if $path ne '';
1875 return $ra if $self->read_svm_props($ra, $path, $r);
1876 $tried{"$self->{url}/$path"} = 1;
1877
1878 if ($ra->{repos_root} eq $self->{url}) {
1879 die @err, (map { " $_\n" } keys %tried), "\n";
1880 }
1881
1882 # nope, make sure we're connected to the repository root:
1883 my $ok;
1884 my @tried_b;
1885 $path = $ra->{svn_path};
1886 $ra = Git::SVN::Ra->new($ra->{repos_root});
1887 while (length $path) {
1888 unless ($tried{"$ra->{url}/$path"}) {
1889 $ok = $self->read_svm_props($ra, $path, $r);
1890 last if $ok;
1891 $tried{"$ra->{url}/$path"} = 1;
1892 }
1893 $path =~ s#/?[^/]+$##;
1894 }
1895 die "Path: '$path' should be ''\n" if $path ne '';
1896 $ok ||= $self->read_svm_props($ra, $path, $r);
1897 $tried{"$ra->{url}/$path"} = 1;
1898 if (!$ok) {
1899 die @err, (map { " $_\n" } keys %tried), "\n";
1900 }
1901 Git::SVN::Ra->new($self->{url});
1902 }
1903
1904 sub svnsync {
1905 my ($self) = @_;
1906 return $self->{svnsync} if $self->{svnsync};
1907
1908 if ($self->no_metadata) {
1909 die "Can't have both 'noMetadata' and ",
1910 "'useSvnsyncProps' options set!\n";
1911 }
1912 if ($self->rewrite_root) {
1913 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1914 "options set!\n";
1915 }
1916
1917 my $svnsync;
1918 # see if we have it in our config, first:
1919 eval {
1920 my $section = "svn-remote.$self->{repo_id}";
1921
1922 my $url = tmp_config('--get', "$section.svnsync-url");
1923 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1924 die "doesn't look right - svn:sync-from-url is '$url'\n";
1925
1926 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
1927 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1928 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1929
1930 $svnsync = { url => $url, uuid => $uuid }
1931 };
1932 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1933 return $self->{svnsync} = $svnsync;
1934 }
1935
1936 my $err = "useSvnsyncProps set, but failed to read " .
1937 "svnsync property: svn:sync-from-";
1938 my $rp = $self->ra->rev_proplist(0);
1939
1940 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1941 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1942 die "doesn't look right - svn:sync-from-url is '$url'\n";
1943
1944 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1945 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1946 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1947
1948 my $section = "svn-remote.$self->{repo_id}";
1949 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1950 tmp_config('--add', "$section.svnsync-url", $url);
1951 return $self->{svnsync} = { url => $url, uuid => $uuid };
1952 }
1953
1954 # this allows us to memoize our SVN::Ra UUID locally and avoid a
1955 # remote lookup (useful for 'git svn log').
1956 sub ra_uuid {
1957 my ($self) = @_;
1958 unless ($self->{ra_uuid}) {
1959 my $key = "svn-remote.$self->{repo_id}.uuid";
1960 my $uuid = eval { tmp_config('--get', $key) };
1961 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1962 $self->{ra_uuid} = $uuid;
1963 } else {
1964 die "ra_uuid called without URL\n" unless $self->{url};
1965 $self->{ra_uuid} = $self->ra->get_uuid;
1966 tmp_config('--add', $key, $self->{ra_uuid});
1967 }
1968 }
1969 $self->{ra_uuid};
1970 }
1971
1972 sub _set_repos_root {
1973 my ($self, $repos_root) = @_;
1974 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1975 $repos_root ||= $self->ra->{repos_root};
1976 tmp_config($k, $repos_root);
1977 $repos_root;
1978 }
1979
1980 sub repos_root {
1981 my ($self) = @_;
1982 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1983 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
1984 }
1985
1986 sub ra {
1987 my ($self) = shift;
1988 my $ra = Git::SVN::Ra->new($self->{url});
1989 $self->_set_repos_root($ra->{repos_root});
1990 if ($self->use_svm_props && !$self->{svm}) {
1991 if ($self->no_metadata) {
1992 die "Can't have both 'noMetadata' and ",
1993 "'useSvmProps' options set!\n";
1994 } elsif ($self->use_svnsync_props) {
1995 die "Can't have both 'useSvnsyncProps' and ",
1996 "'useSvmProps' options set!\n";
1997 }
1998 $ra = $self->_set_svm_vars($ra);
1999 $self->{-want_revprops} = 1;
2000 }
2001 $ra;
2002 }
2003
2004 sub rel_path {
2005 my ($self) = @_;
2006 my $repos_root = $self->ra->{repos_root};
2007 return $self->{path} if ($self->{url} eq $repos_root);
2008 my $url = $self->{url} .
2009 (length $self->{path} ? "/$self->{path}" : $self->{path});
2010 $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
2011 $url;
2012 }
2013
2014 # prop_walk(PATH, REV, SUB)
2015 # -------------------------
2016 # Recursively traverse PATH at revision REV and invoke SUB for each
2017 # directory that contains a SVN property. SUB will be invoked as
2018 # follows: &SUB(gs, path, props); where `gs' is this instance of
2019 # Git::SVN, `path' the path to the directory where the properties
2020 # `props' were found. The `path' will be relative to point of checkout,
2021 # that is, if url://repo/trunk is the current Git branch, and that
2022 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
2023 # as `path' (note the trailing `/').
2024 sub prop_walk {
2025 my ($self, $path, $rev, $sub) = @_;
2026
2027 $path =~ s#^/##;
2028 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
2029 $path =~ s#^/*#/#g;
2030 my $p = $path;
2031 # Strip the irrelevant part of the path.
2032 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
2033 # Ensure the path is terminated by a `/'.
2034 $p =~ s#/*$#/#;
2035
2036 # The properties contain all the internal SVN stuff nobody
2037 # (usually) cares about.
2038 my $interesting_props = 0;
2039 foreach (keys %{$props}) {
2040 # If it doesn't start with `svn:', it must be a
2041 # user-defined property.
2042 ++$interesting_props and next if $_ !~ /^svn:/;
2043 # FIXME: Fragile, if SVN adds new public properties,
2044 # this needs to be updated.
2045 ++$interesting_props if /^svn:(?:ignore|keywords|executable
2046 |eol-style|mime-type
2047 |externals|needs-lock)$/x;
2048 }
2049 &$sub($self, $p, $props) if $interesting_props;
2050
2051 foreach (sort keys %$dirent) {
2052 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
2053 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
2054 }
2055 }
2056
2057 sub last_rev { ($_[0]->last_rev_commit)[0] }
2058 sub last_commit { ($_[0]->last_rev_commit)[1] }
2059
2060 # returns the newest SVN revision number and newest commit SHA1
2061 sub last_rev_commit {
2062 my ($self) = @_;
2063 if (defined $self->{last_rev} && defined $self->{last_commit}) {
2064 return ($self->{last_rev}, $self->{last_commit});
2065 }
2066 my $c = ::verify_ref($self->refname.'^0');
2067 if ($c && !$self->use_svm_props && !$self->no_metadata) {
2068 my $rev = (::cmt_metadata($c))[1];
2069 if (defined $rev) {
2070 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
2071 return ($rev, $c);
2072 }
2073 }
2074 my $map_path = $self->map_path;
2075 unless (-e $map_path) {
2076 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
2077 return (undef, undef);
2078 }
2079 my ($rev, $commit) = $self->rev_map_max(1);
2080 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
2081 return ($rev, $commit);
2082 }
2083
2084 sub get_fetch_range {
2085 my ($self, $min, $max) = @_;
2086 $max ||= $self->ra->get_latest_revnum;
2087 $min ||= $self->rev_map_max;
2088 (++$min, $max);
2089 }
2090
2091 sub tmp_config {
2092 my (@args) = @_;
2093 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
2094 my $config = "$ENV{GIT_DIR}/svn/.metadata";
2095 if (! -f $config && -f $old_def_config) {
2096 rename $old_def_config, $config or
2097 die "Failed rename $old_def_config => $config: $!\n";
2098 }
2099 my $old_config = $ENV{GIT_CONFIG};
2100 $ENV{GIT_CONFIG} = $config;
2101 $@ = undef;
2102 my @ret = eval {
2103 unless (-f $config) {
2104 mkfile($config);
2105 open my $fh, '>', $config or
2106 die "Can't open $config: $!\n";
2107 print $fh "; This file is used internally by ",
2108 "git-svn\n" or die
2109 "Couldn't write to $config: $!\n";
2110 print $fh "; You should not have to edit it\n" or
2111 die "Couldn't write to $config: $!\n";
2112 close $fh or die "Couldn't close $config: $!\n";
2113 }
2114 command('config', @args);
2115 };
2116 my $err = $@;
2117 if (defined $old_config) {
2118 $ENV{GIT_CONFIG} = $old_config;
2119 } else {
2120 delete $ENV{GIT_CONFIG};
2121 }
2122 die $err if $err;
2123 wantarray ? @ret : $ret[0];
2124 }
2125
2126 sub tmp_index_do {
2127 my ($self, $sub) = @_;
2128 my $old_index = $ENV{GIT_INDEX_FILE};
2129 $ENV{GIT_INDEX_FILE} = $self->{index};
2130 $@ = undef;
2131 my @ret = eval {
2132 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2133 mkpath([$dir]) unless -d $dir;
2134 &$sub;
2135 };
2136 my $err = $@;
2137 if (defined $old_index) {
2138 $ENV{GIT_INDEX_FILE} = $old_index;
2139 } else {
2140 delete $ENV{GIT_INDEX_FILE};
2141 }
2142 die $err if $err;
2143 wantarray ? @ret : $ret[0];
2144 }
2145
2146 sub assert_index_clean {
2147 my ($self, $treeish) = @_;
2148
2149 $self->tmp_index_do(sub {
2150 command_noisy('read-tree', $treeish) unless -e $self->{index};
2151 my $x = command_oneline('write-tree');
2152 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2153 /^tree ($::sha1)/mo);
2154 return if $y eq $x;
2155
2156 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2157 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2158 command_noisy('read-tree', $treeish);
2159 $x = command_oneline('write-tree');
2160 if ($y ne $x) {
2161 ::fatal "trees ($treeish) $y != $x\n",
2162 "Something is seriously wrong...";
2163 }
2164 });
2165 }
2166
2167 sub get_commit_parents {
2168 my ($self, $log_entry) = @_;
2169 my (%seen, @ret, @tmp);
2170 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2171 if (my $ip = $self->{inject_parents}) {
2172 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2173 push @tmp, $commit;
2174 }
2175 }
2176 if (my $cur = ::verify_ref($self->refname.'^0')) {
2177 push @tmp, $cur;
2178 }
2179 if (my $ipd = $self->{inject_parents_dcommit}) {
2180 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2181 push @tmp, @$commit;
2182 }
2183 }
2184 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2185 while (my $p = shift @tmp) {
2186 next if $seen{$p};
2187 $seen{$p} = 1;
2188 push @ret, $p;
2189 # MAXPARENT is defined to 16 in commit-tree.c:
2190 last if @ret >= 16;
2191 }
2192 if (@tmp) {
2193 die "r$log_entry->{revision}: No room for parents:\n\t",
2194 join("\n\t", @tmp), "\n";
2195 }
2196 @ret;
2197 }
2198
2199 sub rewrite_root {
2200 my ($self) = @_;
2201 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2202 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2203 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2204 if ($rwr) {
2205 $rwr =~ s#/+$##;
2206 if ($rwr !~ m#^[a-z\+]+://#) {
2207 die "$rwr is not a valid URL (key: $k)\n";
2208 }
2209 }
2210 $self->{-rewrite_root} = $rwr;
2211 }
2212
2213 sub metadata_url {
2214 my ($self) = @_;
2215 ($self->rewrite_root || $self->{url}) .
2216 (length $self->{path} ? '/' . $self->{path} : '');
2217 }
2218
2219 sub full_url {
2220 my ($self) = @_;
2221 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2222 }
2223
2224
2225 sub set_commit_header_env {
2226 my ($log_entry) = @_;
2227 my %env;
2228 foreach my $ned (qw/NAME EMAIL DATE/) {
2229 foreach my $ac (qw/AUTHOR COMMITTER/) {
2230 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2231 }
2232 }
2233
2234 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2235 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2236 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2237
2238 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2239 ? $log_entry->{commit_name}
2240 : $log_entry->{name};
2241 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2242 ? $log_entry->{commit_email}
2243 : $log_entry->{email};
2244 \%env;
2245 }
2246
2247 sub restore_commit_header_env {
2248 my ($env) = @_;
2249 foreach my $ned (qw/NAME EMAIL DATE/) {
2250 foreach my $ac (qw/AUTHOR COMMITTER/) {
2251 my $k = "GIT_${ac}_${ned}";
2252 if (defined $env->{$k}) {
2253 $ENV{$k} = $env->{$k};
2254 } else {
2255 delete $ENV{$k};
2256 }
2257 }
2258 }
2259 }
2260
2261 sub gc {
2262 command_noisy('gc', '--auto');
2263 };
2264
2265 sub do_git_commit {
2266 my ($self, $log_entry) = @_;
2267 my $lr = $self->last_rev;
2268 if (defined $lr && $lr >= $log_entry->{revision}) {
2269 die "Last fetched revision of ", $self->refname,
2270 " was r$lr, but we are about to fetch: ",
2271 "r$log_entry->{revision}!\n";
2272 }
2273 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2274 croak "$log_entry->{revision} = $c already exists! ",
2275 "Why are we refetching it?\n";
2276 }
2277 my $old_env = set_commit_header_env($log_entry);
2278 my $tree = $log_entry->{tree};
2279 if (!defined $tree) {
2280 $tree = $self->tmp_index_do(sub {
2281 command_oneline('write-tree') });
2282 }
2283 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2284
2285 my @exec = ('git', 'commit-tree', $tree);
2286 foreach ($self->get_commit_parents($log_entry)) {
2287 push @exec, '-p', $_;
2288 }
2289 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2290 or croak $!;
2291 binmode $msg_fh;
2292
2293 # we always get UTF-8 from SVN, but we may want our commits in
2294 # a different encoding.
2295 if (my $enc = Git::config('i18n.commitencoding')) {
2296 require Encode;
2297 Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
2298 }
2299 print $msg_fh $log_entry->{log} or croak $!;
2300 restore_commit_header_env($old_env);
2301 unless ($self->no_metadata) {
2302 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2303 or croak $!;
2304 }
2305 $msg_fh->flush == 0 or croak $!;
2306 close $msg_fh or croak $!;
2307 chomp(my $commit = do { local $/; <$out_fh> });
2308 close $out_fh or croak $!;
2309 waitpid $pid, 0;
2310 croak $? if $?;
2311 if ($commit !~ /^$::sha1$/o) {
2312 die "Failed to commit, invalid sha1: $commit\n";
2313 }
2314
2315 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2316
2317 $self->{last_rev} = $log_entry->{revision};
2318 $self->{last_commit} = $commit;
2319 print "r$log_entry->{revision}";
2320 if (defined $log_entry->{svm_revision}) {
2321 print " (\@$log_entry->{svm_revision})";
2322 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2323 0, $self->svm_uuid);
2324 }
2325 print " = $commit ($self->{ref_id})\n";
2326 if (--$_gc_nr == 0) {
2327 $_gc_nr = $_gc_period;
2328 gc();
2329 }
2330 return $commit;
2331 }
2332
2333 sub match_paths {
2334 my ($self, $paths, $r) = @_;
2335 return 1 if $self->{path} eq '';
2336 if (my $path = $paths->{"/$self->{path}"}) {
2337 return ($path->{action} eq 'D') ? 0 : 1;
2338 }
2339 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2340 if (grep /$self->{path_regex}/, keys %$paths) {
2341 return 1;
2342 }
2343 my $c = '';
2344 foreach (split m#/#, $self->{path}) {
2345 $c .= "/$_";
2346 next unless ($paths->{$c} &&
2347 ($paths->{$c}->{action} =~ /^[AR]$/));
2348 if ($self->ra->check_path($self->{path}, $r) ==
2349 $SVN::Node::dir) {
2350 return 1;
2351 }
2352 }
2353 return 0;
2354 }
2355
2356 sub find_parent_branch {
2357 my ($self, $paths, $rev) = @_;
2358 return undef unless $self->follow_parent;
2359 unless (defined $paths) {
2360 my $err_handler = $SVN::Error::handler;
2361 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2362 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
2363 $paths =
2364 Git::SVN::Ra::dup_changed_paths($_[0]) });
2365 $SVN::Error::handler = $err_handler;
2366 }
2367 return undef unless defined $paths;
2368
2369 # look for a parent from another branch:
2370 my @b_path_components = split m#/#, $self->rel_path;
2371 my @a_path_components;
2372 my $i;
2373 while (@b_path_components) {
2374 $i = $paths->{'/'.join('/', @b_path_components)};
2375 last if $i && defined $i->{copyfrom_path};
2376 unshift(@a_path_components, pop(@b_path_components));
2377 }
2378 return undef unless defined $i && defined $i->{copyfrom_path};
2379 my $branch_from = $i->{copyfrom_path};
2380 if (@a_path_components) {
2381 print STDERR "branch_from: $branch_from => ";
2382 $branch_from .= '/'.join('/', @a_path_components);
2383 print STDERR $branch_from, "\n";
2384 }
2385 my $r = $i->{copyfrom_rev};
2386 my $repos_root = $self->ra->{repos_root};
2387 my $url = $self->ra->{url};
2388 my $new_url = $repos_root . $branch_from;
2389 print STDERR "Found possible branch point: ",
2390 "$new_url => ", $self->full_url, ", $r\n";
2391 $branch_from =~ s#^/##;
2392 my $gs = $self->other_gs($new_url, $url, $repos_root,
2393 $branch_from, $r, $self->{ref_id});
2394 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2395 {
2396 my ($base, $head);
2397 if (!defined $r0 || !defined $parent) {
2398 ($base, $head) = parse_revision_argument(0, $r);
2399 } else {
2400 if ($r0 < $r) {
2401 $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
2402 0, 1, sub { $base = $_[1] - 1 });
2403 }
2404 }
2405 if (defined $base && $base <= $r) {
2406 $gs->fetch($base, $r);
2407 }
2408 ($r0, $parent) = $gs->find_rev_before($r, 1);
2409 }
2410 if (defined $r0 && defined $parent) {
2411 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
2412 my $ed;
2413 if ($self->ra->can_do_switch) {
2414 $self->assert_index_clean($parent);
2415 print STDERR "Following parent with do_switch\n";
2416 # do_switch works with svn/trunk >= r22312, but that
2417 # is not included with SVN 1.4.3 (the latest version
2418 # at the moment), so we can't rely on it
2419 $self->{last_commit} = $parent;
2420 $ed = SVN::Git::Fetcher->new($self, $gs->{path});
2421 $gs->ra->gs_do_switch($r0, $rev, $gs,
2422 $self->full_url, $ed)
2423 or die "SVN connection failed somewhere...\n";
2424 } elsif ($self->ra->trees_match($new_url, $r0,
2425 $self->full_url, $rev)) {
2426 print STDERR "Trees match:\n",
2427 " $new_url\@$r0\n",
2428 " ${\$self->full_url}\@$rev\n",
2429 "Following parent with no changes\n";
2430 $self->tmp_index_do(sub {
2431 command_noisy('read-tree', $parent);
2432 });
2433 $self->{last_commit} = $parent;
2434 } else {
2435 print STDERR "Following parent with do_update\n";
2436 $ed = SVN::Git::Fetcher->new($self);
2437 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2438 or die "SVN connection failed somewhere...\n";
2439 }
2440 print STDERR "Successfully followed parent\n";
2441 return $self->make_log_entry($rev, [$parent], $ed);
2442 }
2443 return undef;
2444 }
2445
2446 sub do_fetch {
2447 my ($self, $paths, $rev) = @_;
2448 my $ed;
2449 my ($last_rev, @parents);
2450 if (my $lc = $self->last_commit) {
2451 # we can have a branch that was deleted, then re-added
2452 # under the same name but copied from another path, in
2453 # which case we'll have multiple parents (we don't
2454 # want to break the original ref, nor lose copypath info):
2455 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2456 push @{$log_entry->{parents}}, $lc;
2457 return $log_entry;
2458 }
2459 $ed = SVN::Git::Fetcher->new($self);
2460 $last_rev = $self->{last_rev};
2461 $ed->{c} = $lc;
2462 @parents = ($lc);
2463 } else {
2464 $last_rev = $rev;
2465 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2466 return $log_entry;
2467 }
2468 $ed = SVN::Git::Fetcher->new($self);
2469 }
2470 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2471 die "SVN connection failed somewhere...\n";
2472 }
2473 $self->make_log_entry($rev, \@parents, $ed);
2474 }
2475
2476 sub get_untracked {
2477 my ($self, $ed) = @_;
2478 my @out;
2479 my $h = $ed->{empty};
2480 foreach (sort keys %$h) {
2481 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2482 push @out, " $act: " . uri_encode($_);
2483 warn "W: $act: $_\n";
2484 }
2485 foreach my $t (qw/dir_prop file_prop/) {
2486 $h = $ed->{$t} or next;
2487 foreach my $path (sort keys %$h) {
2488 my $ppath = $path eq '' ? '.' : $path;
2489 foreach my $prop (sort keys %{$h->{$path}}) {
2490 next if $SKIP_PROP{$prop};
2491 my $v = $h->{$path}->{$prop};
2492 my $t_ppath_prop = "$t: " .
2493 uri_encode($ppath) . ' ' .
2494 uri_encode($prop);
2495 if (defined $v) {
2496 push @out, " +$t_ppath_prop " .
2497 uri_encode($v);
2498 } else {
2499 push @out, " -$t_ppath_prop";
2500 }
2501 }
2502 }
2503 }
2504 foreach my $t (qw/absent_file absent_directory/) {
2505 $h = $ed->{$t} or next;
2506 foreach my $parent (sort keys %$h) {
2507 foreach my $path (sort @{$h->{$parent}}) {
2508 push @out, " $t: " .
2509 uri_encode("$parent/$path");
2510 warn "W: $t: $parent/$path ",
2511 "Insufficient permissions?\n";
2512 }
2513 }
2514 }
2515 \@out;
2516 }
2517
2518 # parse_svn_date(DATE)
2519 # --------------------
2520 # Given a date (in UTC) from Subversion, return a string in the format
2521 # "<TZ Offset> <local date/time>" that Git will use.
2522 #
2523 # By default the parsed date will be in UTC; if $Git::SVN::_localtime
2524 # is true we'll convert it to the local timezone instead.
2525 sub parse_svn_date {
2526 my $date = shift || return '+0000 1970-01-01 00:00:00';
2527 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2528 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
2529 croak "Unable to parse date: $date\n";
2530 my $parsed_date; # Set next.
2531
2532 if ($Git::SVN::_localtime) {
2533 # Translate the Subversion datetime to an epoch time.
2534 # Begin by switching ourselves to $date's timezone, UTC.
2535 my $old_env_TZ = $ENV{TZ};
2536 $ENV{TZ} = 'UTC';
2537
2538 my $epoch_in_UTC =
2539 POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
2540
2541 # Determine our local timezone (including DST) at the
2542 # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
2543 # value of TZ, if any, at the time we were run.
2544 if (defined $Git::SVN::Log::TZ) {
2545 $ENV{TZ} = $Git::SVN::Log::TZ;
2546 } else {
2547 delete $ENV{TZ};
2548 }
2549
2550 my $our_TZ =
2551 POSIX::strftime('%Z', $S, $M, $H, $d, $m - 1, $Y - 1900);
2552
2553 # This converts $epoch_in_UTC into our local timezone.
2554 my ($sec, $min, $hour, $mday, $mon, $year,
2555 $wday, $yday, $isdst) = localtime($epoch_in_UTC);
2556
2557 $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
2558 $our_TZ, $year + 1900, $mon + 1,
2559 $mday, $hour, $min, $sec);
2560
2561 # Reset us to the timezone in effect when we entered
2562 # this routine.
2563 if (defined $old_env_TZ) {
2564 $ENV{TZ} = $old_env_TZ;
2565 } else {
2566 delete $ENV{TZ};
2567 }
2568 } else {
2569 $parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
2570 }
2571
2572 return $parsed_date;
2573 }
2574
2575 sub other_gs {
2576 my ($self, $new_url, $url, $repos_root,
2577 $branch_from, $r, $old_ref_id) = @_;
2578 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
2579 unless ($gs) {
2580 my $ref_id = $old_ref_id;
2581 $ref_id =~ s/\@\d+$//;
2582 $ref_id .= "\@$r";
2583 # just grow a tail if we're not unique enough :x
2584 $ref_id .= '-' while find_ref($ref_id);
2585 print STDERR "Initializing parent: $ref_id\n";
2586 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2587 if ($u =~ s#^\Q$url\E(/|$)##) {
2588 $p = $u;
2589 $u = $url;
2590 $repo_id = $self->{repo_id};
2591 }
2592 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2593 }
2594 $gs
2595 }
2596
2597 sub check_author {
2598 my ($author) = @_;
2599 if (!defined $author || length $author == 0) {
2600 $author = '(no author)';
2601 } elsif (defined $::_authors && ! defined $::users{$author}) {
2602 die "Author: $author not defined in $::_authors file\n";
2603 }
2604 $author;
2605 }
2606
2607 sub make_log_entry {
2608 my ($self, $rev, $parents, $ed) = @_;
2609 my $untracked = $self->get_untracked($ed);
2610
2611 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
2612 print $un "r$rev\n" or croak $!;
2613 print $un $_, "\n" foreach @$untracked;
2614 my %log_entry = ( parents => $parents || [], revision => $rev,
2615 log => '');
2616
2617 my $headrev;
2618 my $logged = delete $self->{logged_rev_props};
2619 if (!$logged || $self->{-want_revprops}) {
2620 my $rp = $self->ra->rev_proplist($rev);
2621 foreach (sort keys %$rp) {
2622 my $v = $rp->{$_};
2623 if (/^svn:(author|date|log)$/) {
2624 $log_entry{$1} = $v;
2625 } elsif ($_ eq 'svm:headrev') {
2626 $headrev = $v;
2627 } else {
2628 print $un " rev_prop: ", uri_encode($_), ' ',
2629 uri_encode($v), "\n";
2630 }
2631 }
2632 } else {
2633 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
2634 }
2635 close $un or croak $!;
2636
2637 $log_entry{date} = parse_svn_date($log_entry{date});
2638 $log_entry{log} .= "\n";
2639 my $author = $log_entry{author} = check_author($log_entry{author});
2640 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
2641 : ($author, undef);
2642
2643 my ($commit_name, $commit_email) = ($name, $email);
2644 if ($_use_log_author) {
2645 my $name_field;
2646 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
2647 $name_field = $1;
2648 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
2649 $name_field = $1;
2650 }
2651 if (!defined $name_field) {
2652 if (!defined $email) {
2653 $email = $name;
2654 }
2655 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
2656 ($name, $email) = ($1, $2);
2657 } elsif ($name_field =~ /(.*)@/) {
2658 ($name, $email) = ($1, $name_field);
2659 } else {
2660 ($name, $email) = ($name_field, $name_field);
2661 }
2662 }
2663 if (defined $headrev && $self->use_svm_props) {
2664 if ($self->rewrite_root) {
2665 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
2666 "options set!\n";
2667 }
2668 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
2669 # we don't want "SVM: initializing mirror for junk" ...
2670 return undef if $r == 0;
2671 my $svm = $self->svm;
2672 if ($uuid ne $svm->{uuid}) {
2673 die "UUID mismatch on SVM path:\n",
2674 "expected: $svm->{uuid}\n",
2675 " got: $uuid\n";
2676 }
2677 my $full_url = $self->full_url;
2678 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
2679 die "Failed to replace '$svm->{replace}' with ",
2680 "'$svm->{source}' in $full_url\n";
2681 # throw away username for storing in records
2682 remove_username($full_url);
2683 $log_entry{metadata} = "$full_url\@$r $uuid";
2684 $log_entry{svm_revision} = $r;
2685 $email ||= "$author\@$uuid";
2686 $commit_email ||= "$author\@$uuid";
2687 } elsif ($self->use_svnsync_props) {
2688 my $full_url = $self->svnsync->{url};
2689 $full_url .= "/$self->{path}" if length $self->{path};
2690 remove_username($full_url);
2691 my $uuid = $self->svnsync->{uuid};
2692 $log_entry{metadata} = "$full_url\@$rev $uuid";
2693 $email ||= "$author\@$uuid";
2694 $commit_email ||= "$author\@$uuid";
2695 } else {
2696 my $url = $self->metadata_url;
2697 remove_username($url);
2698 $log_entry{metadata} = "$url\@$rev " .
2699 $self->ra->get_uuid;
2700 $email ||= "$author\@" . $self->ra->get_uuid;
2701 $commit_email ||= "$author\@" . $self->ra->get_uuid;
2702 }
2703 $log_entry{name} = $name;
2704 $log_entry{email} = $email;
2705 $log_entry{commit_name} = $commit_name;
2706 $log_entry{commit_email} = $commit_email;
2707 \%log_entry;
2708 }
2709
2710 sub fetch {
2711 my ($self, $min_rev, $max_rev, @parents) = @_;
2712 my ($last_rev, $last_commit) = $self->last_rev_commit;
2713 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
2714 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
2715 }
2716
2717 sub set_tree_cb {
2718 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2719 $self->{inject_parents} = { $rev => $tree };
2720 $self->fetch(undef, undef);
2721 }
2722
2723 sub set_tree {
2724 my ($self, $tree) = (shift, shift);
2725 my $log_entry = ::get_commit_entry($tree);
2726 unless ($self->{last_rev}) {
2727 ::fatal("Must have an existing revision to commit");
2728 }
2729 my %ed_opts = ( r => $self->{last_rev},
2730 log => $log_entry->{log},
2731 ra => $self->ra,
2732 tree_a => $self->{last_commit},
2733 tree_b => $tree,
2734 editor_cb => sub {
2735 $self->set_tree_cb($log_entry, $tree, @_) },
2736 svn_path => $self->{path} );
2737 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
2738 print "No changes\nr$self->{last_rev} = $tree\n";
2739 }
2740 }
2741
2742 sub rebuild_from_rev_db {
2743 my ($self, $path) = @_;
2744 my $r = -1;
2745 open my $fh, '<', $path or croak "open: $!";
2746 binmode $fh or croak "binmode: $!";
2747 while (<$fh>) {
2748 length($_) == 41 or croak "inconsistent size in ($_) != 41";
2749 chomp($_);
2750 ++$r;
2751 next if $_ eq ('0' x 40);
2752 $self->rev_map_set($r, $_);
2753 print "r$r = $_\n";
2754 }
2755 close $fh or croak "close: $!";
2756 unlink $path or croak "unlink: $!";
2757 }
2758
2759 sub rebuild {
2760 my ($self) = @_;
2761 my $map_path = $self->map_path;
2762 my $partial = (-e $map_path && ! -z $map_path);
2763 return unless ::verify_ref($self->refname.'^0');
2764 if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
2765 my $rev_db = $self->rev_db_path;
2766 $self->rebuild_from_rev_db($rev_db);
2767 if ($self->use_svm_props) {
2768 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
2769 $self->rebuild_from_rev_db($svm_rev_db);
2770 }
2771 $self->unlink_rev_db_symlink;
2772 return;
2773 }
2774 print "Rebuilding $map_path ...\n" if (!$partial);
2775 my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
2776 (undef, undef));
2777 my ($log, $ctx) =
2778 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
2779 ($head ? "$head.." : "") . $self->refname,
2780 '--');
2781 my $metadata_url = $self->metadata_url;
2782 remove_username($metadata_url);
2783 my $svn_uuid = $self->ra_uuid;
2784 my $c;
2785 while (<$log>) {
2786 if ( m{^commit ($::sha1)$} ) {
2787 $c = $1;
2788 next;
2789 }
2790 next unless s{^\s*(git-svn-id:)}{$1};
2791 my ($url, $rev, $uuid) = ::extract_metadata($_);
2792 remove_username($url);
2793
2794 # ignore merges (from set-tree)
2795 next if (!defined $rev || !$uuid);
2796
2797 # if we merged or otherwise started elsewhere, this is
2798 # how we break out of it
2799 if (($uuid ne $svn_uuid) ||
2800 ($metadata_url && $url && ($url ne $metadata_url))) {
2801 next;
2802 }
2803 if ($partial && $head) {
2804 print "Partial-rebuilding $map_path ...\n";
2805 print "Currently at $base_rev = $head\n";
2806 $head = undef;
2807 }
2808
2809 $self->rev_map_set($rev, $c);
2810 print "r$rev = $c\n";
2811 }
2812 command_close_pipe($log, $ctx);
2813 print "Done rebuilding $map_path\n" if (!$partial || !$head);
2814 my $rev_db_path = $self->rev_db_path;
2815 if (-f $self->rev_db_path) {
2816 unlink $self->rev_db_path or croak "unlink: $!";
2817 }
2818 $self->unlink_rev_db_symlink;
2819 }
2820
2821 # rev_map:
2822 # Tie::File seems to be prone to offset errors if revisions get sparse,
2823 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
2824 # one of my favorite modules is out :< Next up would be one of the DBM
2825 # modules, but I'm not sure which is most portable...
2826 #
2827 # This is the replacement for the rev_db format, which was too big
2828 # and inefficient for large repositories with a lot of sparse history
2829 # (mainly tags)
2830 #
2831 # The format is this:
2832 # - 24 bytes for every record,
2833 # * 4 bytes for the integer representing an SVN revision number
2834 # * 20 bytes representing the sha1 of a git commit
2835 # - No empty padding records like the old format
2836 # (except the last record, which can be overwritten)
2837 # - new records are written append-only since SVN revision numbers
2838 # increase monotonically
2839 # - lookups on SVN revision number are done via a binary search
2840 # - Piping the file to xxd -c24 is a good way of dumping it for
2841 # viewing or editing (piped back through xxd -r), should the need
2842 # ever arise.
2843 # - The last record can be padding revision with an all-zero sha1
2844 # This is used to optimize fetch performance when using multiple
2845 # "fetch" directives in .git/config
2846 #
2847 # These files are disposable unless noMetadata or useSvmProps is set
2848
2849 sub _rev_map_set {
2850 my ($fh, $rev, $commit) = @_;
2851
2852 binmode $fh or croak "binmode: $!";
2853 my $size = (stat($fh))[7];
2854 ($size % 24) == 0 or croak "inconsistent size: $size";
2855
2856 my $wr_offset = 0;
2857 if ($size > 0) {
2858 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2859 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
2860 $read == 24 or croak "read only $read bytes (!= 24)";
2861 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
2862 if ($last_commit eq ('0' x40)) {
2863 if ($size >= 48) {
2864 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2865 $read = sysread($fh, $buf, 24) or
2866 croak "read: $!";
2867 $read == 24 or
2868 croak "read only $read bytes (!= 24)";
2869 ($last_rev, $last_commit) =
2870 unpack(rev_map_fmt, $buf);
2871 if ($last_commit eq ('0' x40)) {
2872 croak "inconsistent .rev_map\n";
2873 }
2874 }
2875 if ($last_rev >= $rev) {
2876 croak "last_rev is higher!: $last_rev >= $rev";
2877 }
2878 $wr_offset = -24;
2879 }
2880 }
2881 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
2882 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
2883 croak "write: $!";
2884 }
2885
2886 sub mkfile {
2887 my ($path) = @_;
2888 unless (-e $path) {
2889 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2890 mkpath([$dir]) unless -d $dir;
2891 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2892 close $fh or die "Couldn't close (create) $path: $!\n";
2893 }
2894 }
2895
2896 sub rev_map_set {
2897 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2898 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2899 my $db = $self->map_path($uuid);
2900 my $db_lock = "$db.lock";
2901 my $sig;
2902 if ($update_ref) {
2903 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2904 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
2905 }
2906 mkfile($db);
2907
2908 $LOCKFILES{$db_lock} = 1;
2909 my $sync;
2910 # both of these options make our .rev_db file very, very important
2911 # and we can't afford to lose it because rebuild() won't work
2912 if ($self->use_svm_props || $self->no_metadata) {
2913 $sync = 1;
2914 copy($db, $db_lock) or die "rev_map_set(@_): ",
2915 "Failed to copy: ",
2916 "$db => $db_lock ($!)\n";
2917 } else {
2918 rename $db, $db_lock or die "rev_map_set(@_): ",
2919 "Failed to rename: ",
2920 "$db => $db_lock ($!)\n";
2921 }
2922
2923 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
2924 or croak "Couldn't open $db_lock: $!\n";
2925 _rev_map_set($fh, $rev, $commit);
2926 if ($sync) {
2927 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2928 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2929 }
2930 close $fh or croak $!;
2931 if ($update_ref) {
2932 $_head = $self;
2933 command_noisy('update-ref', '-m', "r$rev",
2934 $self->refname, $commit);
2935 }
2936 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
2937 "$db_lock => $db ($!)\n";
2938 delete $LOCKFILES{$db_lock};
2939 if ($update_ref) {
2940 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2941 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2942 kill $sig, $$ if defined $sig;
2943 }
2944 }
2945
2946 # If want_commit, this will return an array of (rev, commit) where
2947 # commit _must_ be a valid commit in the archive.
2948 # Otherwise, it'll return the max revision (whether or not the
2949 # commit is valid or just a 0x40 placeholder).
2950 sub rev_map_max {
2951 my ($self, $want_commit) = @_;
2952 $self->rebuild;
2953 my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
2954 $want_commit ? ($r, $c) : $r;
2955 }
2956
2957 sub rev_map_max_norebuild {
2958 my ($self, $want_commit) = @_;
2959 my $map_path = $self->map_path;
2960 stat $map_path or return $want_commit ? (0, undef) : 0;
2961 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2962 binmode $fh or croak "binmode: $!";
2963 my $size = (stat($fh))[7];
2964 ($size % 24) == 0 or croak "inconsistent size: $size";
2965
2966 if ($size == 0) {
2967 close $fh or croak "close: $!";
2968 return $want_commit ? (0, undef) : 0;
2969 }
2970
2971 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2972 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2973 my ($r, $c) = unpack(rev_map_fmt, $buf);
2974 if ($want_commit && $c eq ('0' x40)) {
2975 if ($size < 48) {
2976 return $want_commit ? (0, undef) : 0;
2977 }
2978 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2979 sysread($fh, $buf, 24) == 24 or croak "read: $!";
2980 ($r, $c) = unpack(rev_map_fmt, $buf);
2981 if ($c eq ('0'x40)) {
2982 croak "Penultimate record is all-zeroes in $map_path";
2983 }
2984 }
2985 close $fh or croak "close: $!";
2986 $want_commit ? ($r, $c) : $r;
2987 }
2988
2989 sub rev_map_get {
2990 my ($self, $rev, $uuid) = @_;
2991 my $map_path = $self->map_path($uuid);
2992 return undef unless -e $map_path;
2993
2994 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2995 binmode $fh or croak "binmode: $!";
2996 my $size = (stat($fh))[7];
2997 ($size % 24) == 0 or croak "inconsistent size: $size";
2998
2999 if ($size == 0) {
3000 close $fh or croak "close: $fh";
3001 return undef;
3002 }
3003
3004 my ($l, $u) = (0, $size - 24);
3005 my ($r, $c, $buf);
3006
3007 while ($l <= $u) {
3008 my $i = int(($l/24 + $u/24) / 2) * 24;
3009 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
3010 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3011 my ($r, $c) = unpack('NH40', $buf);
3012
3013 if ($r < $rev) {
3014 $l = $i + 24;
3015 } elsif ($r > $rev) {
3016 $u = $i - 24;
3017 } else { # $r == $rev
3018 close($fh) or croak "close: $!";
3019 return $c eq ('0' x 40) ? undef : $c;
3020 }
3021 }
3022 close($fh) or croak "close: $!";
3023 undef;
3024 }
3025
3026 # Finds the first svn revision that exists on (if $eq_ok is true) or
3027 # before $rev for the current branch. It will not search any lower
3028 # than $min_rev. Returns the git commit hash and svn revision number
3029 # if found, else (undef, undef).
3030 sub find_rev_before {
3031 my ($self, $rev, $eq_ok, $min_rev) = @_;
3032 --$rev unless $eq_ok;
3033 $min_rev ||= 1;
3034 while ($rev >= $min_rev) {
3035 if (my $c = $self->rev_map_get($rev)) {
3036 return ($rev, $c);
3037 }
3038 --$rev;
3039 }
3040 return (undef, undef);
3041 }
3042
3043 # Finds the first svn revision that exists on (if $eq_ok is true) or
3044 # after $rev for the current branch. It will not search any higher
3045 # than $max_rev. Returns the git commit hash and svn revision number
3046 # if found, else (undef, undef).
3047 sub find_rev_after {
3048 my ($self, $rev, $eq_ok, $max_rev) = @_;
3049 ++$rev unless $eq_ok;
3050 $max_rev ||= $self->rev_map_max;
3051 while ($rev <= $max_rev) {
3052 if (my $c = $self->rev_map_get($rev)) {
3053 return ($rev, $c);
3054 }
3055 ++$rev;
3056 }
3057 return (undef, undef);
3058 }
3059
3060 sub _new {
3061 my ($class, $repo_id, $ref_id, $path) = @_;
3062 unless (defined $repo_id && length $repo_id) {
3063 $repo_id = $Git::SVN::default_repo_id;
3064 }
3065 unless (defined $ref_id && length $ref_id) {
3066 $_[2] = $ref_id = $Git::SVN::default_ref_id;
3067 }
3068 $_[1] = $repo_id;
3069 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
3070 $_[3] = $path = '' unless (defined $path);
3071 mkpath(["$ENV{GIT_DIR}/svn"]);
3072 bless {
3073 ref_id => $ref_id, dir => $dir, index => "$dir/index",
3074 path => $path, config => "$ENV{GIT_DIR}/svn/config",
3075 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
3076 }
3077
3078 # for read-only access of old .rev_db formats
3079 sub unlink_rev_db_symlink {
3080 my ($self) = @_;
3081 my $link = $self->rev_db_path;
3082 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
3083 if (-l $link) {
3084 unlink $link or croak "unlink: $link failed!";
3085 }
3086 }
3087
3088 sub rev_db_path {
3089 my ($self, $uuid) = @_;
3090 my $db_path = $self->map_path($uuid);
3091 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
3092 or croak "map_path: $db_path does not contain '/.rev_map.' !";
3093 $db_path;
3094 }
3095
3096 # the new replacement for .rev_db
3097 sub map_path {
3098 my ($self, $uuid) = @_;
3099 $uuid ||= $self->ra_uuid;
3100 "$self->{map_root}.$uuid";
3101 }
3102
3103 sub uri_encode {
3104 my ($f) = @_;
3105 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
3106 $f
3107 }
3108
3109 sub remove_username {
3110 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
3111 }
3112
3113 package Git::SVN::Prompt;
3114 use strict;
3115 use warnings;
3116 require SVN::Core;
3117 use vars qw/$_no_auth_cache $_username/;
3118
3119 sub simple {
3120 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
3121 $may_save = undef if $_no_auth_cache;
3122 $default_username = $_username if defined $_username;
3123 if (defined $default_username && length $default_username) {
3124 if (defined $realm && length $realm) {
3125 print STDERR "Authentication realm: $realm\n";
3126 STDERR->flush;
3127 }
3128 $cred->username($default_username);
3129 } else {
3130 username($cred, $realm, $may_save, $pool);
3131 }
3132 $cred->password(_read_password("Password for '" .
3133 $cred->username . "': ", $realm));
3134 $cred->may_save($may_save);
3135 $SVN::_Core::SVN_NO_ERROR;
3136 }
3137
3138 sub ssl_server_trust {
3139 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
3140 $may_save = undef if $_no_auth_cache;
3141 print STDERR "Error validating server certificate for '$realm':\n";
3142 {
3143 no warnings 'once';
3144 # All variables SVN::Auth::SSL::* are used only once,
3145 # so we're shutting up Perl warnings about this.
3146 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
3147 print STDERR " - The certificate is not issued ",
3148 "by a trusted authority. Use the\n",
3149 " fingerprint to validate ",
3150 "the certificate manually!\n";
3151 }
3152 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
3153 print STDERR " - The certificate hostname ",
3154 "does not match.\n";
3155 }
3156 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
3157 print STDERR " - The certificate is not yet valid.\n";
3158 }
3159 if ($failures & $SVN::Auth::SSL::EXPIRED) {
3160 print STDERR " - The certificate has expired.\n";
3161 }
3162 if ($failures & $SVN::Auth::SSL::OTHER) {
3163 print STDERR " - The certificate has ",
3164 "an unknown error.\n";
3165 }
3166 } # no warnings 'once'
3167 printf STDERR
3168 "Certificate information:\n".
3169 " - Hostname: %s\n".
3170 " - Valid: from %s until %s\n".
3171 " - Issuer: %s\n".
3172 " - Fingerprint: %s\n",
3173 map $cert_info->$_, qw(hostname valid_from valid_until
3174 issuer_dname fingerprint);
3175 my $choice;
3176 prompt:
3177 print STDERR $may_save ?
3178 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
3179 "(R)eject or accept (t)emporarily? ";
3180 STDERR->flush;
3181 $choice = lc(substr(<STDIN> || 'R', 0, 1));
3182 if ($choice =~ /^t$/i) {
3183 $cred->may_save(undef);
3184 } elsif ($choice =~ /^r$/i) {
3185 return -1;
3186 } elsif ($may_save && $choice =~ /^p$/i) {
3187 $cred->may_save($may_save);
3188 } else {
3189 goto prompt;
3190 }
3191 $cred->accepted_failures($failures);
3192 $SVN::_Core::SVN_NO_ERROR;
3193 }
3194
3195 sub ssl_client_cert {
3196 my ($cred, $realm, $may_save, $pool) = @_;
3197 $may_save = undef if $_no_auth_cache;
3198 print STDERR "Client certificate filename: ";
3199 STDERR->flush;
3200 chomp(my $filename = <STDIN>);
3201 $cred->cert_file($filename);
3202 $cred->may_save($may_save);
3203 $SVN::_Core::SVN_NO_ERROR;
3204 }
3205
3206 sub ssl_client_cert_pw {
3207 my ($cred, $realm, $may_save, $pool) = @_;
3208 $may_save = undef if $_no_auth_cache;
3209 $cred->password(_read_password("Password: ", $realm));
3210 $cred->may_save($may_save);
3211 $SVN::_Core::SVN_NO_ERROR;
3212 }
3213
3214 sub username {
3215 my ($cred, $realm, $may_save, $pool) = @_;
3216 $may_save = undef if $_no_auth_cache;
3217 if (defined $realm && length $realm) {
3218 print STDERR "Authentication realm: $realm\n";
3219 }
3220 my $username;
3221 if (defined $_username) {
3222 $username = $_username;
3223 } else {
3224 print STDERR "Username: ";
3225 STDERR->flush;
3226 chomp($username = <STDIN>);
3227 }
3228 $cred->username($username);
3229 $cred->may_save($may_save);
3230 $SVN::_Core::SVN_NO_ERROR;
3231 }
3232
3233 sub _read_password {
3234 my ($prompt, $realm) = @_;
3235 print STDERR $prompt;
3236 STDERR->flush;
3237 require Term::ReadKey;
3238 Term::ReadKey::ReadMode('noecho');
3239 my $password = '';
3240 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3241 last if $key =~ /[\012\015]/; # \n\r
3242 $password .= $key;
3243 }
3244 Term::ReadKey::ReadMode('restore');
3245 print STDERR "\n";
3246 STDERR->flush;
3247 $password;
3248 }
3249
3250 package SVN::Git::Fetcher;
3251 use vars qw/@ISA/;
3252 use strict;
3253 use warnings;
3254 use Carp qw/croak/;
3255 use File::Temp qw/tempfile/;
3256 use IO::File qw//;
3257 use vars qw/$_ignore_regex/;
3258
3259 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3260 sub new {
3261 my ($class, $git_svn, $switch_path) = @_;
3262 my $self = SVN::Delta::Editor->new;
3263 bless $self, $class;
3264 if (exists $git_svn->{last_commit}) {
3265 $self->{c} = $git_svn->{last_commit};
3266 $self->{empty_symlinks} =
3267 _mark_empty_symlinks($git_svn, $switch_path);
3268 }
3269 $self->{empty} = {};
3270 $self->{dir_prop} = {};
3271 $self->{file_prop} = {};
3272 $self->{absent_dir} = {};
3273 $self->{absent_file} = {};
3274 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3275 $self;
3276 }
3277
3278 # this uses the Ra object, so it must be called before do_{switch,update},
3279 # not inside them (when the Git::SVN::Fetcher object is passed) to
3280 # do_{switch,update}
3281 sub _mark_empty_symlinks {
3282 my ($git_svn, $switch_path) = @_;
3283 my $bool = Git::config_bool('svn.brokenSymlinkWorkaround');
3284 return {} if (defined($bool) && ! $bool);
3285
3286 my %ret;
3287 my ($rev, $cmt) = $git_svn->last_rev_commit;
3288 return {} unless ($rev && $cmt);
3289
3290 # allow the warning to be printed for each revision we fetch to
3291 # ensure the user sees it. The user can also disable the workaround
3292 # on the repository even while git svn is running and the next
3293 # revision fetched will skip this expensive function.
3294 my $printed_warning;
3295 chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`);
3296 my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt);
3297 local $/ = "\0";
3298 my $pfx = defined($switch_path) ? $switch_path : $git_svn->{path};
3299 $pfx .= '/' if length($pfx);
3300 while (<$ls>) {
3301 chomp;
3302 s/\A100644 blob $empty_blob\t//o or next;
3303 unless ($printed_warning) {
3304 print STDERR "Scanning for empty symlinks, ",
3305 "this may take a while if you have ",
3306 "many empty files\n",
3307 "You may disable this with `",
3308 "git config svn.brokenSymlinkWorkaround ",
3309 "false'.\n",
3310 "This may be done in a different ",
3311 "terminal without restarting ",
3312 "git svn\n";
3313 $printed_warning = 1;
3314 }
3315 my $path = $_;
3316 my (undef, $props) =
3317 $git_svn->ra->get_file($pfx.$path, $rev, undef);
3318 if ($props->{'svn:special'}) {
3319 $ret{$path} = 1;
3320 }
3321 }
3322 command_close_pipe($ls, $ctx);
3323 \%ret;
3324 }
3325
3326 # returns true if a given path is inside a ".git" directory
3327 sub in_dot_git {
3328 $_[0] =~ m{(?:^|/)\.git(?:/|$)};
3329 }
3330
3331 # return value: 0 -- don't ignore, 1 -- ignore
3332 sub is_path_ignored {
3333 my ($path) = @_;
3334 return 1 if in_dot_git($path);
3335 return 0 unless defined($_ignore_regex);
3336 return 1 if $path =~ m!$_ignore_regex!o;
3337 return 0;
3338 }
3339
3340 sub set_path_strip {
3341 my ($self, $path) = @_;
3342 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3343 }
3344
3345 sub open_root {
3346 { path => '' };
3347 }
3348
3349 sub open_directory {
3350 my ($self, $path, $pb, $rev) = @_;
3351 { path => $path };
3352 }
3353
3354 sub git_path {
3355 my ($self, $path) = @_;
3356 if ($self->{path_strip}) {
3357 $path =~ s!$self->{path_strip}!! or
3358 die "Failed to strip path '$path' ($self->{path_strip})\n";
3359 }
3360 $path;
3361 }
3362
3363 sub delete_entry {
3364 my ($self, $path, $rev, $pb) = @_;
3365 return undef if is_path_ignored($path);
3366
3367 my $gpath = $self->git_path($path);
3368 return undef if ($gpath eq '');
3369
3370 # remove entire directories.
3371 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
3372 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3373 -r --name-only -z/,
3374 $self->{c}, '--', $gpath);
3375 local $/ = "\0";
3376 while (<$ls>) {
3377 chomp;
3378 $self->{gii}->remove($_);
3379 print "\tD\t$_\n" unless $::_q;
3380 }
3381 print "\tD\t$gpath/\n" unless $::_q;
3382 command_close_pipe($ls, $ctx);
3383 $self->{empty}->{$path} = 0
3384 } else {
3385 $self->{gii}->remove($gpath);
3386 print "\tD\t$gpath\n" unless $::_q;
3387 }
3388 undef;
3389 }
3390
3391 sub open_file {
3392 my ($self, $path, $pb, $rev) = @_;
3393 my ($mode, $blob);
3394
3395 goto out if is_path_ignored($path);
3396
3397 my $gpath = $self->git_path($path);
3398 ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
3399 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
3400 unless (defined $mode && defined $blob) {
3401 die "$path was not found in commit $self->{c} (r$rev)\n";
3402 }
3403 if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) {
3404 $mode = '120000';
3405 }
3406 out:
3407 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3408 pool => SVN::Pool->new, action => 'M' };
3409 }
3410
3411 sub add_file {
3412 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3413 my $mode;
3414
3415 if (!is_path_ignored($path)) {
3416 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3417 delete $self->{empty}->{$dir};
3418 $mode = '100644';
3419 }
3420 { path => $path, mode_a => $mode, mode_b => $mode,
3421 pool => SVN::Pool->new, action => 'A' };
3422 }
3423
3424 sub add_directory {
3425 my ($self, $path, $cp_path, $cp_rev) = @_;
3426 goto out if is_path_ignored($path);
3427 my $gpath = $self->git_path($path);
3428 if ($gpath eq '') {
3429 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3430 -r --name-only -z/,
3431 $self->{c});
3432 local $/ = "\0";
3433 while (<$ls>) {
3434 chomp;
3435 $self->{gii}->remove($_);
3436 print "\tD\t$_\n" unless $::_q;
3437 }
3438 command_close_pipe($ls, $ctx);
3439 $self->{empty}->{$path} = 0;
3440 }
3441 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3442 delete $self->{empty}->{$dir};
3443 $self->{empty}->{$path} = 1;
3444 out:
3445 { path => $path };
3446 }
3447
3448 sub change_dir_prop {
3449 my ($self, $db, $prop, $value) = @_;
3450 return undef if is_path_ignored($db->{path});
3451 $self->{dir_prop}->{$db->{path}} ||= {};
3452 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
3453 undef;
3454 }
3455
3456 sub absent_directory {
3457 my ($self, $path, $pb) = @_;
3458 return undef if is_path_ignored($path);
3459 $self->{absent_dir}->{$pb->{path}} ||= [];
3460 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
3461 undef;
3462 }
3463
3464 sub absent_file {
3465 my ($self, $path, $pb) = @_;
3466 return undef if is_path_ignored($path);
3467 $self->{absent_file}->{$pb->{path}} ||= [];
3468 push @{$self->{absent_file}->{$pb->{path}}}, $path;
3469 undef;
3470 }
3471
3472 sub change_file_prop {
3473 my ($self, $fb, $prop, $value) = @_;
3474 return undef if is_path_ignored($fb->{path});
3475 if ($prop eq 'svn:executable') {
3476 if ($fb->{mode_b} != 120000) {
3477 $fb->{mode_b} = defined $value ? 100755 : 100644;
3478 }
3479 } elsif ($prop eq 'svn:special') {
3480 $fb->{mode_b} = defined $value ? 120000 : 100644;
3481 } else {
3482 $self->{file_prop}->{$fb->{path}} ||= {};
3483 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
3484 }
3485 undef;
3486 }
3487
3488 sub apply_textdelta {
3489 my ($self, $fb, $exp) = @_;
3490 return undef if is_path_ignored($fb->{path});
3491 my $fh = $::_repository->temp_acquire('svn_delta');
3492 # $fh gets auto-closed() by SVN::TxDelta::apply(),
3493 # (but $base does not,) so dup() it for reading in close_file
3494 open my $dup, '<&', $fh or croak $!;
3495 my $base = $::_repository->temp_acquire('git_blob');
3496
3497 if ($fb->{blob}) {
3498 my ($base_is_link, $size);
3499
3500 if ($fb->{mode_a} eq '120000' &&
3501 ! $self->{empty_symlinks}->{$fb->{path}}) {
3502 print $base 'link ' or die "print $!\n";
3503 $base_is_link = 1;
3504 }
3505 retry:
3506 $size = $::_repository->cat_blob($fb->{blob}, $base);
3507 die "Failed to read object $fb->{blob}" if ($size < 0);
3508
3509 if (defined $exp) {
3510 seek $base, 0, 0 or croak $!;
3511 my $got = ::md5sum($base);
3512 if ($got ne $exp) {
3513 my $err = "Checksum mismatch: ".
3514 "$fb->{path} $fb->{blob}\n" .
3515 "expected: $exp\n" .
3516 " got: $got\n";
3517 if ($base_is_link) {
3518 warn $err,
3519 "Retrying... (possibly ",
3520 "a bad symlink from SVN)\n";
3521 $::_repository->temp_reset($base);
3522 $base_is_link = 0;
3523 goto retry;
3524 }
3525 die $err;
3526 }
3527 }
3528 }
3529 seek $base, 0, 0 or croak $!;
3530 $fb->{fh} = $fh;
3531 $fb->{base} = $base;
3532 [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
3533 }
3534
3535 sub close_file {
3536 my ($self, $fb, $exp) = @_;
3537 return undef if is_path_ignored($fb->{path});
3538
3539 my $hash;
3540 my $path = $self->git_path($fb->{path});
3541 if (my $fh = $fb->{fh}) {
3542 if (defined $exp) {
3543 seek($fh, 0, 0) or croak $!;
3544 my $got = ::md5sum($fh);
3545 if ($got ne $exp) {
3546 die "Checksum mismatch: $path\n",
3547 "expected: $exp\n got: $got\n";
3548 }
3549 }
3550 if ($fb->{mode_b} == 120000) {
3551 sysseek($fh, 0, 0) or croak $!;
3552 my $rd = sysread($fh, my $buf, 5);
3553
3554 if (!defined $rd) {
3555 croak "sysread: $!\n";
3556 } elsif ($rd == 0) {
3557 warn "$path has mode 120000",
3558 " but it points to nothing\n",
3559 "converting to an empty file with mode",
3560 " 100644\n";
3561 $fb->{mode_b} = '100644';
3562 } elsif ($buf ne 'link ') {
3563 warn "$path has mode 120000",
3564 " but is not a link\n";
3565 } else {
3566 my $tmp_fh = $::_repository->temp_acquire(
3567 'svn_hash');
3568 my $res;
3569 while ($res = sysread($fh, my $str, 1024)) {
3570 my $out = syswrite($tmp_fh, $str, $res);
3571 defined($out) && $out == $res
3572 or croak("write ",
3573 Git::temp_path($tmp_fh),
3574 ": $!\n");
3575 }
3576 defined $res or croak $!;
3577
3578 ($fh, $tmp_fh) = ($tmp_fh, $fh);
3579 Git::temp_release($tmp_fh, 1);
3580 }
3581 }
3582
3583 $hash = $::_repository->hash_and_insert_object(
3584 Git::temp_path($fh));
3585 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
3586
3587 Git::temp_release($fb->{base}, 1);
3588 Git::temp_release($fh, 1);
3589 } else {
3590 $hash = $fb->{blob} or die "no blob information\n";
3591 }
3592 $fb->{pool}->clear;
3593 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
3594 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
3595 undef;
3596 }
3597
3598 sub abort_edit {
3599 my $self = shift;
3600 $self->{nr} = $self->{gii}->{nr};
3601 delete $self->{gii};
3602 $self->SUPER::abort_edit(@_);
3603 }
3604
3605 sub close_edit {
3606 my $self = shift;
3607 $self->{git_commit_ok} = 1;
3608 $self->{nr} = $self->{gii}->{nr};
3609 delete $self->{gii};
3610 $self->SUPER::close_edit(@_);
3611 }
3612
3613 package SVN::Git::Editor;
3614 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
3615 use strict;
3616 use warnings;
3617 use Carp qw/croak/;
3618 use IO::File;
3619
3620 sub new {
3621 my ($class, $opts) = @_;
3622 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
3623 die "$_ required!\n" unless (defined $opts->{$_});
3624 }
3625
3626 my $pool = SVN::Pool->new;
3627 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
3628 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
3629 $opts->{r}, $mods);
3630
3631 # $opts->{ra} functions should not be used after this:
3632 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
3633 $opts->{editor_cb}, $pool);
3634 my $self = SVN::Delta::Editor->new(@ce, $pool);
3635 bless $self, $class;
3636 foreach (qw/svn_path r tree_a tree_b/) {
3637 $self->{$_} = $opts->{$_};
3638 }
3639 $self->{url} = $opts->{ra}->{url};
3640 $self->{mods} = $mods;
3641 $self->{types} = $types;
3642 $self->{pool} = $pool;
3643 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
3644 $self->{rm} = { };
3645 $self->{path_prefix} = length $self->{svn_path} ?
3646 "$self->{svn_path}/" : '';
3647 $self->{config} = $opts->{config};
3648 return $self;
3649 }
3650
3651 sub generate_diff {
3652 my ($tree_a, $tree_b) = @_;
3653 my @diff_tree = qw(diff-tree -z -r);
3654 if ($_cp_similarity) {
3655 push @diff_tree, "-C$_cp_similarity";
3656 } else {
3657 push @diff_tree, '-C';
3658 }
3659 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
3660 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
3661 push @diff_tree, $tree_a, $tree_b;
3662 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
3663 local $/ = "\0";
3664 my $state = 'meta';
3665 my @mods;
3666 while (<$diff_fh>) {
3667 chomp $_; # this gets rid of the trailing "\0"
3668 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
3669 ($::sha1)\s($::sha1)\s
3670 ([MTCRAD])\d*$/xo) {
3671 push @mods, { mode_a => $1, mode_b => $2,
3672 sha1_a => $3, sha1_b => $4,
3673 chg => $5 };
3674 if ($5 =~ /^(?:C|R)$/) {
3675 $state = 'file_a';
3676 } else {
3677 $state = 'file_b';
3678 }
3679 } elsif ($state eq 'file_a') {
3680 my $x = $mods[$#mods] or croak "Empty array\n";
3681 if ($x->{chg} !~ /^(?:C|R)$/) {
3682 croak "Error parsing $_, $x->{chg}\n";
3683 }
3684 $x->{file_a} = $_;
3685 $state = 'file_b';
3686 } elsif ($state eq 'file_b') {
3687 my $x = $mods[$#mods] or croak "Empty array\n";
3688 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
3689 croak "Error parsing $_, $x->{chg}\n";
3690 }
3691 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
3692 croak "Error parsing $_, $x->{chg}\n";
3693 }
3694 $x->{file_b} = $_;
3695 $state = 'meta';
3696 } else {
3697 croak "Error parsing $_\n";
3698 }
3699 }
3700 command_close_pipe($diff_fh, $ctx);
3701 \@mods;
3702 }
3703
3704 sub check_diff_paths {
3705 my ($ra, $pfx, $rev, $mods) = @_;
3706 my %types;
3707 $pfx .= '/' if length $pfx;
3708
3709 sub type_diff_paths {
3710 my ($ra, $types, $path, $rev) = @_;
3711 my @p = split m#/+#, $path;
3712 my $c = shift @p;
3713 unless (defined $types->{$c}) {
3714 $types->{$c} = $ra->check_path($c, $rev);
3715 }
3716 while (@p) {
3717 $c .= '/' . shift @p;
3718 next if defined $types->{$c};
3719 $types->{$c} = $ra->check_path($c, $rev);
3720 }
3721 }
3722
3723 foreach my $m (@$mods) {
3724 foreach my $f (qw/file_a file_b/) {
3725 next unless defined $m->{$f};
3726 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
3727 if (length $pfx.$dir && ! defined $types{$dir}) {
3728 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
3729 }
3730 }
3731 }
3732 \%types;
3733 }
3734
3735 sub split_path {
3736 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
3737 }
3738
3739 sub repo_path {
3740 my ($self, $path) = @_;
3741 $self->{path_prefix}.(defined $path ? $path : '');
3742 }
3743
3744 sub url_path {
3745 my ($self, $path) = @_;
3746 if ($self->{url} =~ m#^https?://#) {
3747 $path =~ s/([^~a-zA-Z0-9_.-])/uc sprintf("%%%02x",ord($1))/eg;
3748 }
3749 $self->{url} . '/' . $self->repo_path($path);
3750 }
3751
3752 sub rmdirs {
3753 my ($self) = @_;
3754 my $rm = $self->{rm};
3755 delete $rm->{''}; # we never delete the url we're tracking
3756 return unless %$rm;
3757
3758 foreach (keys %$rm) {
3759 my @d = split m#/#, $_;
3760 my $c = shift @d;
3761 $rm->{$c} = 1;
3762 while (@d) {
3763 $c .= '/' . shift @d;
3764 $rm->{$c} = 1;
3765 }
3766 }
3767 delete $rm->{$self->{svn_path}};
3768 delete $rm->{''}; # we never delete the url we're tracking
3769 return unless %$rm;
3770
3771 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
3772 $self->{tree_b});
3773 local $/ = "\0";
3774 while (<$fh>) {
3775 chomp;
3776 my @dn = split m#/#, $_;
3777 while (pop @dn) {
3778 delete $rm->{join '/', @dn};
3779 }
3780 unless (%$rm) {
3781 close $fh;
3782 return;
3783 }
3784 }
3785 command_close_pipe($fh, $ctx);
3786
3787 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
3788 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
3789 $self->close_directory($bat->{$d}, $p);
3790 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
3791 print "\tD+\t$d/\n" unless $::_q;
3792 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
3793 delete $bat->{$d};
3794 }
3795 }
3796
3797 sub open_or_add_dir {
3798 my ($self, $full_path, $baton) = @_;
3799 my $t = $self->{types}->{$full_path};
3800 if (!defined $t) {
3801 die "$full_path not known in r$self->{r} or we have a bug!\n";
3802 }
3803 {
3804 no warnings 'once';
3805 # SVN::Node::none and SVN::Node::file are used only once,
3806 # so we're shutting up Perl's warnings about them.
3807 if ($t == $SVN::Node::none) {
3808 return $self->add_directory($full_path, $baton,
3809 undef, -1, $self->{pool});
3810 } elsif ($t == $SVN::Node::dir) {
3811 return $self->open_directory($full_path, $baton,
3812 $self->{r}, $self->{pool});
3813 } # no warnings 'once'
3814 print STDERR "$full_path already exists in repository at ",
3815 "r$self->{r} and it is not a directory (",
3816 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
3817 } # no warnings 'once'
3818 exit 1;
3819 }
3820
3821 sub ensure_path {
3822 my ($self, $path) = @_;
3823 my $bat = $self->{bat};
3824 my $repo_path = $self->repo_path($path);
3825 return $bat->{''} unless (length $repo_path);
3826 my @p = split m#/+#, $repo_path;
3827 my $c = shift @p;
3828 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
3829 while (@p) {
3830 my $c0 = $c;
3831 $c .= '/' . shift @p;
3832 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
3833 }
3834 return $bat->{$c};
3835 }
3836
3837 # Subroutine to convert a globbing pattern to a regular expression.
3838 # From perl cookbook.
3839 sub glob2pat {
3840 my $globstr = shift;
3841 my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
3842 $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
3843 return '^' . $globstr . '$';
3844 }
3845
3846 sub check_autoprop {
3847 my ($self, $pattern, $properties, $file, $fbat) = @_;
3848 # Convert the globbing pattern to a regular expression.
3849 my $regex = glob2pat($pattern);
3850 # Check if the pattern matches the file name.
3851 if($file =~ m/($regex)/) {
3852 # Parse the list of properties to set.
3853 my @props = split(/;/, $properties);
3854 foreach my $prop (@props) {
3855 # Parse 'name=value' syntax and set the property.
3856 if ($prop =~ /([^=]+)=(.*)/) {
3857 my ($n,$v) = ($1,$2);
3858 for ($n, $v) {
3859 s/^\s+//; s/\s+$//;
3860 }
3861 $self->change_file_prop($fbat, $n, $v);
3862 }
3863 }
3864 }
3865 }
3866
3867 sub apply_autoprops {
3868 my ($self, $file, $fbat) = @_;
3869 my $conf_t = ${$self->{config}}{'config'};
3870 no warnings 'once';
3871 # Check [miscellany]/enable-auto-props in svn configuration.
3872 if (SVN::_Core::svn_config_get_bool(
3873 $conf_t,
3874 $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
3875 $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
3876 0)) {
3877 # Auto-props are enabled. Enumerate them to look for matches.
3878 my $callback = sub {
3879 $self->check_autoprop($_[0], $_[1], $file, $fbat);
3880 };
3881 SVN::_Core::svn_config_enumerate(
3882 $conf_t,
3883 $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
3884 $callback);
3885 }
3886 }
3887
3888 sub A {
3889 my ($self, $m) = @_;
3890 my ($dir, $file) = split_path($m->{file_b});
3891 my $pbat = $self->ensure_path($dir);
3892 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3893 undef, -1);
3894 print "\tA\t$m->{file_b}\n" unless $::_q;
3895 $self->apply_autoprops($file, $fbat);
3896 $self->chg_file($fbat, $m);
3897 $self->close_file($fbat,undef,$self->{pool});
3898 }
3899
3900 sub C {
3901 my ($self, $m) = @_;
3902 my ($dir, $file) = split_path($m->{file_b});
3903 my $pbat = $self->ensure_path($dir);
3904 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3905 $self->url_path($m->{file_a}), $self->{r});
3906 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3907 $self->chg_file($fbat, $m);
3908 $self->close_file($fbat,undef,$self->{pool});
3909 }
3910
3911 sub delete_entry {
3912 my ($self, $path, $pbat) = @_;
3913 my $rpath = $self->repo_path($path);
3914 my ($dir, $file) = split_path($rpath);
3915 $self->{rm}->{$dir} = 1;
3916 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
3917 }
3918
3919 sub R {
3920 my ($self, $m) = @_;
3921 my ($dir, $file) = split_path($m->{file_b});
3922 my $pbat = $self->ensure_path($dir);
3923 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3924 $self->url_path($m->{file_a}), $self->{r});
3925 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3926 $self->apply_autoprops($file, $fbat);
3927 $self->chg_file($fbat, $m);
3928 $self->close_file($fbat,undef,$self->{pool});
3929
3930 ($dir, $file) = split_path($m->{file_a});
3931 $pbat = $self->ensure_path($dir);
3932 $self->delete_entry($m->{file_a}, $pbat);
3933 }
3934
3935 sub M {
3936 my ($self, $m) = @_;
3937 my ($dir, $file) = split_path($m->{file_b});
3938 my $pbat = $self->ensure_path($dir);
3939 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
3940 $pbat,$self->{r},$self->{pool});
3941 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
3942 $self->chg_file($fbat, $m);
3943 $self->close_file($fbat,undef,$self->{pool});
3944 }
3945
3946 sub T { shift->M(@_) }
3947
3948 sub change_file_prop {
3949 my ($self, $fbat, $pname, $pval) = @_;
3950 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
3951 }
3952
3953 sub _chg_file_get_blob ($$$$) {
3954 my ($self, $fbat, $m, $which) = @_;
3955 my $fh = $::_repository->temp_acquire("git_blob_$which");
3956 if ($m->{"mode_$which"} =~ /^120/) {
3957 print $fh 'link ' or croak $!;
3958 $self->change_file_prop($fbat,'svn:special','*');
3959 } elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) {
3960 $self->change_file_prop($fbat,'svn:special',undef);
3961 }
3962 my $blob = $m->{"sha1_$which"};
3963 return ($fh,) if ($blob =~ /^0{40}$/);
3964 my $size = $::_repository->cat_blob($blob, $fh);
3965 croak "Failed to read object $blob" if ($size < 0);
3966 $fh->flush == 0 or croak $!;
3967 seek $fh, 0, 0 or croak $!;
3968
3969 my $exp = ::md5sum($fh);
3970 seek $fh, 0, 0 or croak $!;
3971 return ($fh, $exp);
3972 }
3973
3974 sub chg_file {
3975 my ($self, $fbat, $m) = @_;
3976 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
3977 $self->change_file_prop($fbat,'svn:executable','*');
3978 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
3979 $self->change_file_prop($fbat,'svn:executable',undef);
3980 }
3981 my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a';
3982 my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b';
3983 my $pool = SVN::Pool->new;
3984 my $atd = $self->apply_textdelta($fbat, $exp_a, $pool);
3985 if (-s $fh_a) {
3986 my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool);
3987 my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool);
3988 if (defined $res) {
3989 die "Unexpected result from send_txstream: $res\n",
3990 "(SVN::Core::VERSION: $SVN::Core::VERSION)\n";
3991 }
3992 } else {
3993 my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool);
3994 die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n"
3995 if ($got ne $exp_b);
3996 }
3997 Git::temp_release($fh_b, 1);
3998 Git::temp_release($fh_a, 1);
3999 $pool->clear;
4000 }
4001
4002 sub D {
4003 my ($self, $m) = @_;
4004 my ($dir, $file) = split_path($m->{file_b});
4005 my $pbat = $self->ensure_path($dir);
4006 print "\tD\t$m->{file_b}\n" unless $::_q;
4007 $self->delete_entry($m->{file_b}, $pbat);
4008 }
4009
4010 sub close_edit {
4011 my ($self) = @_;
4012 my ($p,$bat) = ($self->{pool}, $self->{bat});
4013 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
4014 next if $_ eq '';
4015 $self->close_directory($bat->{$_}, $p);
4016 }
4017 $self->close_directory($bat->{''}, $p);
4018 $self->SUPER::close_edit($p);
4019 $p->clear;
4020 }
4021
4022 sub abort_edit {
4023 my ($self) = @_;
4024 $self->SUPER::abort_edit($self->{pool});
4025 }
4026
4027 sub DESTROY {
4028 my $self = shift;
4029 $self->SUPER::DESTROY(@_);
4030 $self->{pool}->clear;
4031 }
4032
4033 # this drives the editor
4034 sub apply_diff {
4035 my ($self) = @_;
4036 my $mods = $self->{mods};
4037 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
4038 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
4039 my $f = $m->{chg};
4040 if (defined $o{$f}) {
4041 $self->$f($m);
4042 } else {
4043 fatal("Invalid change type: $f");
4044 }
4045 }
4046 $self->rmdirs if $_rmdir;
4047 if (@$mods == 0) {
4048 $self->abort_edit;
4049 } else {
4050 $self->close_edit;
4051 }
4052 return scalar @$mods;
4053 }
4054
4055 package Git::SVN::Ra;
4056 use vars qw/@ISA $config_dir $_log_window_size/;
4057 use strict;
4058 use warnings;
4059 my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
4060
4061 BEGIN {
4062 # enforce temporary pool usage for some simple functions
4063 no strict 'refs';
4064 for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root
4065 get_file/) {
4066 my $SUPER = "SUPER::$f";
4067 *$f = sub {
4068 my $self = shift;
4069 my $pool = SVN::Pool->new;
4070 my @ret = $self->$SUPER(@_,$pool);
4071 $pool->clear;
4072 wantarray ? @ret : $ret[0];
4073 };
4074 }
4075 }
4076
4077 sub _auth_providers () {
4078 [
4079 SVN::Client::get_simple_provider(),
4080 SVN::Client::get_ssl_server_trust_file_provider(),
4081 SVN::Client::get_simple_prompt_provider(
4082 \&Git::SVN::Prompt::simple, 2),
4083 SVN::Client::get_ssl_client_cert_file_provider(),
4084 SVN::Client::get_ssl_client_cert_prompt_provider(
4085 \&Git::SVN::Prompt::ssl_client_cert, 2),
4086 SVN::Client::get_ssl_client_cert_pw_file_provider(),
4087 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
4088 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
4089 SVN::Client::get_username_provider(),
4090 SVN::Client::get_ssl_server_trust_prompt_provider(
4091 \&Git::SVN::Prompt::ssl_server_trust),
4092 SVN::Client::get_username_prompt_provider(
4093 \&Git::SVN::Prompt::username, 2)
4094 ]
4095 }
4096
4097 sub escape_uri_only {
4098 my ($uri) = @_;
4099 my @tmp;
4100 foreach (split m{/}, $uri) {
4101 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
4102 push @tmp, $_;
4103 }
4104 join('/', @tmp);
4105 }
4106
4107 sub escape_url {
4108 my ($url) = @_;
4109 if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
4110 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
4111 $url = "$scheme://$domain$uri";
4112 }
4113 $url;
4114 }
4115
4116 sub new {
4117 my ($class, $url) = @_;
4118 $url =~ s!/+$!!;
4119 return $RA if ($RA && $RA->{url} eq $url);
4120
4121 SVN::_Core::svn_config_ensure($config_dir, undef);
4122 my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
4123 my $config = SVN::Core::config_get_config($config_dir);
4124 $RA = undef;
4125 my $dont_store_passwords = 1;
4126 my $conf_t = ${$config}{'config'};
4127 {
4128 no warnings 'once';
4129 # The usage of $SVN::_Core::SVN_CONFIG_* variables
4130 # produces warnings that variables are used only once.
4131 # I had not found the better way to shut them up, so
4132 # the warnings of type 'once' are disabled in this block.
4133 if (SVN::_Core::svn_config_get_bool($conf_t,
4134 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4135 $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
4136 1) == 0) {
4137 SVN::_Core::svn_auth_set_parameter($baton,
4138 $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
4139 bless (\$dont_store_passwords, "_p_void"));
4140 }
4141 if (SVN::_Core::svn_config_get_bool($conf_t,
4142 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4143 $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
4144 1) == 0) {
4145 $Git::SVN::Prompt::_no_auth_cache = 1;
4146 }
4147 } # no warnings 'once'
4148 my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
4149 config => $config,
4150 pool => SVN::Pool->new,
4151 auth_provider_callbacks => $callbacks);
4152 $self->{url} = $url;
4153 $self->{svn_path} = $url;
4154 $self->{repos_root} = $self->get_repos_root;
4155 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
4156 $self->{cache} = { check_path => { r => 0, data => {} },
4157 get_dir => { r => 0, data => {} } };
4158 $RA = bless $self, $class;
4159 }
4160
4161 sub check_path {
4162 my ($self, $path, $r) = @_;
4163 my $cache = $self->{cache}->{check_path};
4164 if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
4165 return $cache->{data}->{$path};
4166 }
4167 my $pool = SVN::Pool->new;
4168 my $t = $self->SUPER::check_path($path, $r, $pool);
4169 $pool->clear;
4170 if ($r != $cache->{r}) {
4171 %{$cache->{data}} = ();
4172 $cache->{r} = $r;
4173 }
4174 $cache->{data}->{$path} = $t;
4175 }
4176
4177 sub get_dir {
4178 my ($self, $dir, $r) = @_;
4179 my $cache = $self->{cache}->{get_dir};
4180 if ($r == $cache->{r}) {
4181 if (my $x = $cache->{data}->{$dir}) {
4182 return wantarray ? @$x : $x->[0];
4183 }
4184 }
4185 my $pool = SVN::Pool->new;
4186 my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
4187 my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
4188 $pool->clear;
4189 if ($r != $cache->{r}) {
4190 %{$cache->{data}} = ();
4191 $cache->{r} = $r;
4192 }
4193 $cache->{data}->{$dir} = [ \%dirents, $r, $props ];
4194 wantarray ? (\%dirents, $r, $props) : \%dirents;
4195 }
4196
4197 sub DESTROY {
4198 # do not call the real DESTROY since we store ourselves in $RA
4199 }
4200
4201 # get_log(paths, start, end, limit,
4202 # discover_changed_paths, strict_node_history, receiver)
4203 sub get_log {
4204 my ($self, @args) = @_;
4205 my $pool = SVN::Pool->new;
4206
4207 # the limit parameter was not supported in SVN 1.1.x, so we
4208 # drop it. Therefore, the receiver callback passed to it
4209 # is made aware of this limitation by being wrapped if
4210 # the limit passed to is being wrapped.
4211 if ($SVN::Core::VERSION le '1.2.0') {
4212 my $limit = splice(@args, 3, 1);
4213 if ($limit > 0) {
4214 my $receiver = pop @args;
4215 push(@args, sub { &$receiver(@_) if (--$limit >= 0) });
4216 }
4217 }
4218 my $ret = $self->SUPER::get_log(@args, $pool);
4219 $pool->clear;
4220 $ret;
4221 }
4222
4223 sub trees_match {
4224 my ($self, $url1, $rev1, $url2, $rev2) = @_;
4225 my $ctx = SVN::Client->new(auth => _auth_providers);
4226 my $out = IO::File->new_tmpfile;
4227
4228 # older SVN (1.1.x) doesn't take $pool as the last parameter for
4229 # $ctx->diff(), so we'll create a default one
4230 my $pool = SVN::Pool->new_default_sub;
4231
4232 $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
4233 $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
4234 $out->flush;
4235 my $ret = (($out->stat)[7] == 0);
4236 close $out or croak $!;
4237
4238 $ret;
4239 }
4240
4241 sub get_commit_editor {
4242 my ($self, $log, $cb, $pool) = @_;
4243 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
4244 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
4245 }
4246
4247 sub gs_do_update {
4248 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
4249 my $new = ($rev_a == $rev_b);
4250 my $path = $gs->{path};
4251
4252 if ($new && -e $gs->{index}) {
4253 unlink $gs->{index} or die
4254 "Couldn't unlink index: $gs->{index}: $!\n";
4255 }
4256 my $pool = SVN::Pool->new;
4257 $editor->set_path_strip($path);
4258 my (@pc) = split m#/#, $path;
4259 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
4260 1, $editor, $pool);
4261 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4262
4263 # Since we can't rely on svn_ra_reparent being available, we'll
4264 # just have to do some magic with set_path to make it so
4265 # we only want a partial path.
4266 my $sp = '';
4267 my $final = join('/', @pc);
4268 while (@pc) {
4269 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
4270 $sp .= '/' if length $sp;
4271 $sp .= shift @pc;
4272 }
4273 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
4274
4275 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
4276
4277 $reporter->finish_report($pool);
4278 $pool->clear;
4279 $editor->{git_commit_ok};
4280 }
4281
4282 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
4283 # svn_ra_reparent didn't work before 1.4)
4284 sub gs_do_switch {
4285 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
4286 my $path = $gs->{path};
4287 my $pool = SVN::Pool->new;
4288
4289 my $full_url = $self->{url};
4290 my $old_url = $full_url;
4291 $full_url .= '/' . escape_uri_only($path) if length $path;
4292 my ($ra, $reparented);
4293
4294 if ($old_url =~ m#^svn(\+ssh)?://#) {
4295 $_[0] = undef;
4296 $self = undef;
4297 $RA = undef;
4298 $ra = Git::SVN::Ra->new($full_url);
4299 $ra_invalid = 1;
4300 } elsif ($old_url ne $full_url) {
4301 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool);
4302 $self->{url} = $full_url;
4303 $reparented = 1;
4304 }
4305
4306 $ra ||= $self;
4307 $url_b = escape_url($url_b);
4308 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
4309 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4310 $reporter->set_path('', $rev_a, 0, @lock, $pool);
4311 $reporter->finish_report($pool);
4312
4313 if ($reparented) {
4314 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
4315 $self->{url} = $old_url;
4316 }
4317
4318 $pool->clear;
4319 $editor->{git_commit_ok};
4320 }
4321
4322 sub longest_common_path {
4323 my ($gsv, $globs) = @_;
4324 my %common;
4325 my $common_max = scalar @$gsv;
4326
4327 foreach my $gs (@$gsv) {
4328 my @tmp = split m#/#, $gs->{path};
4329 my $p = '';
4330 foreach (@tmp) {
4331 $p .= length($p) ? "/$_" : $_;
4332 $common{$p} ||= 0;
4333 $common{$p}++;
4334 }
4335 }
4336 $globs ||= [];
4337 $common_max += scalar @$globs;
4338 foreach my $glob (@$globs) {
4339 my @tmp = split m#/#, $glob->{path}->{left};
4340 my $p = '';
4341 foreach (@tmp) {
4342 $p .= length($p) ? "/$_" : $_;
4343 $common{$p} ||= 0;
4344 $common{$p}++;
4345 }
4346 }
4347
4348 my $longest_path = '';
4349 foreach (sort {length $b <=> length $a} keys %common) {
4350 if ($common{$_} == $common_max) {
4351 $longest_path = $_;
4352 last;
4353 }
4354 }
4355 $longest_path;
4356 }
4357
4358 sub gs_fetch_loop_common {
4359 my ($self, $base, $head, $gsv, $globs) = @_;
4360 return if ($base > $head);
4361 my $inc = $_log_window_size;
4362 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
4363 my $longest_path = longest_common_path($gsv, $globs);
4364 my $ra_url = $self->{url};
4365 while (1) {
4366 my %revs;
4367 my $err;
4368 my $err_handler = $SVN::Error::handler;
4369 $SVN::Error::handler = sub {
4370 ($err) = @_;
4371 skip_unknown_revs($err);
4372 };
4373 sub _cb {
4374 my ($paths, $r, $author, $date, $log) = @_;
4375 [ dup_changed_paths($paths),
4376 { author => $author, date => $date, log => $log } ];
4377 }
4378 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
4379 sub { $revs{$_[1]} = _cb(@_) });
4380 if ($err) {
4381 print "Checked through r$max\r";
4382 }
4383 if ($err && $max >= $head) {
4384 print STDERR "Path '$longest_path' ",
4385 "was probably deleted:\n",
4386 $err->expanded_message,
4387 "\nWill attempt to follow ",
4388 "revisions r$min .. r$max ",
4389 "committed before the deletion\n";
4390 my $hi = $max;
4391 while (--$hi >= $min) {
4392 my $ok;
4393 $self->get_log([$longest_path], $min, $hi,
4394 0, 1, 1, sub {
4395 $ok ||= $_[1];
4396 $revs{$_[1]} = _cb(@_) });
4397 if ($ok) {
4398 print STDERR "r$min .. r$ok OK\n";
4399 last;
4400 }
4401 }
4402 }
4403 $SVN::Error::handler = $err_handler;
4404
4405 my %exists = map { $_->{path} => $_ } @$gsv;
4406 foreach my $r (sort {$a <=> $b} keys %revs) {
4407 my ($paths, $logged) = @{$revs{$r}};
4408
4409 foreach my $gs ($self->match_globs(\%exists, $paths,
4410 $globs, $r)) {
4411 if ($gs->rev_map_max >= $r) {
4412 next;
4413 }
4414 next unless $gs->match_paths($paths, $r);
4415 $gs->{logged_rev_props} = $logged;
4416 if (my $last_commit = $gs->last_commit) {
4417 $gs->assert_index_clean($last_commit);
4418 }
4419 my $log_entry = $gs->do_fetch($paths, $r);
4420 if ($log_entry) {
4421 $gs->do_git_commit($log_entry);
4422 }
4423 $INDEX_FILES{$gs->{index}} = 1;
4424 }
4425 foreach my $g (@$globs) {
4426 my $k = "svn-remote.$g->{remote}." .
4427 "$g->{t}-maxRev";
4428 Git::SVN::tmp_config($k, $r);
4429 }
4430 if ($ra_invalid) {
4431 $_[0] = undef;
4432 $self = undef;
4433 $RA = undef;
4434 $self = Git::SVN::Ra->new($ra_url);
4435 $ra_invalid = undef;
4436 }
4437 }
4438 # pre-fill the .rev_db since it'll eventually get filled in
4439 # with '0' x40 if something new gets committed
4440 foreach my $gs (@$gsv) {
4441 next if $gs->rev_map_max >= $max;
4442 next if defined $gs->rev_map_get($max);
4443 $gs->rev_map_set($max, 0 x40);
4444 }
4445 foreach my $g (@$globs) {
4446 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
4447 Git::SVN::tmp_config($k, $max);
4448 }
4449 last if $max >= $head;
4450 $min = $max + 1;
4451 $max += $inc;
4452 $max = $head if ($max > $head);
4453 }
4454 Git::SVN::gc();
4455 }
4456
4457 sub get_dir_globbed {
4458 my ($self, $left, $depth, $r) = @_;
4459
4460 my @x = eval { $self->get_dir($left, $r) };
4461 return unless scalar @x == 3;
4462 my $dirents = $x[0];
4463 my @finalents;
4464 foreach my $de (keys %$dirents) {
4465 next if $dirents->{$de}->{kind} != $SVN::Node::dir;
4466 if ($depth > 1) {
4467 my @args = ("$left/$de", $depth - 1, $r);
4468 foreach my $dir ($self->get_dir_globbed(@args)) {
4469 push @finalents, "$de/$dir";
4470 }
4471 } else {
4472 push @finalents, $de;
4473 }
4474 }
4475 @finalents;
4476 }
4477
4478 sub match_globs {
4479 my ($self, $exists, $paths, $globs, $r) = @_;
4480
4481 sub get_dir_check {
4482 my ($self, $exists, $g, $r) = @_;
4483
4484 my @dirs = $self->get_dir_globbed($g->{path}->{left},
4485 $g->{path}->{depth},
4486 $r);
4487
4488 foreach my $de (@dirs) {
4489 my $p = $g->{path}->full_path($de);
4490 next if $exists->{$p};
4491 next if (length $g->{path}->{right} &&
4492 ($self->check_path($p, $r) !=
4493 $SVN::Node::dir));
4494 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
4495 $g->{ref}->full_path($de), 1);
4496 }
4497 }
4498 foreach my $g (@$globs) {
4499 if (my $path = $paths->{"/$g->{path}->{left}"}) {
4500 if ($path->{action} =~ /^[AR]$/) {
4501 get_dir_check($self, $exists, $g, $r);
4502 }
4503 }
4504 foreach (keys %$paths) {
4505 if (/$g->{path}->{left_regex}/ &&
4506 !/$g->{path}->{regex}/) {
4507 next if $paths->{$_}->{action} !~ /^[AR]$/;
4508 get_dir_check($self, $exists, $g, $r);
4509 }
4510 next unless /$g->{path}->{regex}/;
4511 my $p = $1;
4512 my $pathname = $g->{path}->full_path($p);
4513 next if $exists->{$pathname};
4514 next if ($self->check_path($pathname, $r) !=
4515 $SVN::Node::dir);
4516 $exists->{$pathname} = Git::SVN->init(
4517 $self->{url}, $pathname, undef,
4518 $g->{ref}->full_path($p), 1);
4519 }
4520 my $c = '';
4521 foreach (split m#/#, $g->{path}->{left}) {
4522 $c .= "/$_";
4523 next unless ($paths->{$c} &&
4524 ($paths->{$c}->{action} =~ /^[AR]$/));
4525 get_dir_check($self, $exists, $g, $r);
4526 }
4527 }
4528 values %$exists;
4529 }
4530
4531 sub minimize_url {
4532 my ($self) = @_;
4533 return $self->{url} if ($self->{url} eq $self->{repos_root});
4534 my $url = $self->{repos_root};
4535 my @components = split(m!/!, $self->{svn_path});
4536 my $c = '';
4537 do {
4538 $url .= "/$c" if length $c;
4539 eval { (ref $self)->new($url)->get_latest_revnum };
4540 } while ($@ && ($c = shift @components));
4541 $url;
4542 }
4543
4544 sub can_do_switch {
4545 my $self = shift;
4546 unless (defined $can_do_switch) {
4547 my $pool = SVN::Pool->new;
4548 my $rep = eval {
4549 $self->do_switch(1, '', 0, $self->{url},
4550 SVN::Delta::Editor->new, $pool);
4551 };
4552 if ($@) {
4553 $can_do_switch = 0;
4554 } else {
4555 $rep->abort_report($pool);
4556 $can_do_switch = 1;
4557 }
4558 $pool->clear;
4559 }
4560 $can_do_switch;
4561 }
4562
4563 sub skip_unknown_revs {
4564 my ($err) = @_;
4565 my $errno = $err->apr_err();
4566 # Maybe the branch we're tracking didn't
4567 # exist when the repo started, so it's
4568 # not an error if it doesn't, just continue
4569 #
4570 # Wonderfully consistent library, eh?
4571 # 160013 - svn:// and file://
4572 # 175002 - http(s)://
4573 # 175007 - http(s):// (this repo required authorization, too...)
4574 # More codes may be discovered later...
4575 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
4576 my $err_key = $err->expanded_message;
4577 # revision numbers change every time, filter them out
4578 $err_key =~ s/\d+/\0/g;
4579 $err_key = "$errno\0$err_key";
4580 unless ($ignored_err{$err_key}) {
4581 warn "W: Ignoring error from SVN, path probably ",
4582 "does not exist: ($errno): ",
4583 $err->expanded_message,"\n";
4584 warn "W: Do not be alarmed at the above message ",
4585 "git-svn is just searching aggressively for ",
4586 "old history.\n",
4587 "This may take a while on large repositories\n";
4588 $ignored_err{$err_key} = 1;
4589 }
4590 return;
4591 }
4592 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
4593 }
4594
4595 # svn_log_changed_path_t objects passed to get_log are likely to be
4596 # overwritten even if only the refs are copied to an external variable,
4597 # so we should dup the structures in their entirety. Using an externally
4598 # passed pool (instead of our temporary and quickly cleared pool in
4599 # Git::SVN::Ra) does not help matters at all...
4600 sub dup_changed_paths {
4601 my ($paths) = @_;
4602 return undef unless $paths;
4603 my %ret;
4604 foreach my $p (keys %$paths) {
4605 my $i = $paths->{$p};
4606 my %s = map { $_ => $i->$_ }
4607 qw/copyfrom_path copyfrom_rev action/;
4608 $ret{$p} = \%s;
4609 }
4610 \%ret;
4611 }
4612
4613 package Git::SVN::Log;
4614 use strict;
4615 use warnings;
4616 use POSIX qw/strftime/;
4617 use constant commit_log_separator => ('-' x 72) . "\n";
4618 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
4619 %rusers $show_commit $incremental/;
4620 my $l_fmt;
4621
4622 sub cmt_showable {
4623 my ($c) = @_;
4624 return 1 if defined $c->{r};
4625
4626 # big commit message got truncated by the 16k pretty buffer in rev-list
4627 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
4628 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
4629 @{$c->{l}} = ();
4630 my @log = command(qw/cat-file commit/, $c->{c});
4631
4632 # shift off the headers
4633 shift @log while ($log[0] ne '');
4634 shift @log;
4635
4636 # TODO: make $c->{l} not have a trailing newline in the future
4637 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
4638
4639 (undef, $c->{r}, undef) = ::extract_metadata(
4640 (grep(/^git-svn-id: /, @log))[-1]);
4641 }
4642 return defined $c->{r};
4643 }
4644
4645 sub log_use_color {
4646 return $color || Git->repository->get_colorbool('color.diff');
4647 }
4648
4649 sub git_svn_log_cmd {
4650 my ($r_min, $r_max, @args) = @_;
4651 my $head = 'HEAD';
4652 my (@files, @log_opts);
4653 foreach my $x (@args) {
4654 if ($x eq '--' || @files) {
4655 push @files, $x;
4656 } else {
4657 if (::verify_ref("$x^0")) {
4658 $head = $x;
4659 } else {
4660 push @log_opts, $x;
4661 }
4662 }
4663 }
4664
4665 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
4666 $gs ||= Git::SVN->_new;
4667 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
4668 $gs->refname);
4669 push @cmd, '-r' unless $non_recursive;
4670 push @cmd, qw/--raw --name-status/ if $verbose;
4671 push @cmd, '--color' if log_use_color();
4672 push @cmd, @log_opts;
4673 if (defined $r_max && $r_max == $r_min) {
4674 push @cmd, '--max-count=1';
4675 if (my $c = $gs->rev_map_get($r_max)) {
4676 push @cmd, $c;
4677 }
4678 } elsif (defined $r_max) {
4679 if ($r_max < $r_min) {
4680 ($r_min, $r_max) = ($r_max, $r_min);
4681 }
4682 my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
4683 my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
4684 # If there are no commits in the range, both $c_max and $c_min
4685 # will be undefined. If there is at least 1 commit in the
4686 # range, both will be defined.
4687 return () if !defined $c_min || !defined $c_max;
4688 if ($c_min eq $c_max) {
4689 push @cmd, '--max-count=1', $c_min;
4690 } else {
4691 push @cmd, '--boundary', "$c_min..$c_max";
4692 }
4693 }
4694 return (@cmd, @files);
4695 }
4696
4697 # adapted from pager.c
4698 sub config_pager {
4699 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
4700 if (!defined $pager) {
4701 $pager = 'less';
4702 } elsif (length $pager == 0 || $pager eq 'cat') {
4703 $pager = undef;
4704 }
4705 $ENV{GIT_PAGER_IN_USE} = defined($pager);
4706 }
4707
4708 sub run_pager {
4709 return unless -t *STDOUT && defined $pager;
4710 pipe my ($rfd, $wfd) or return;
4711 defined(my $pid = fork) or ::fatal "Can't fork: $!";
4712 if (!$pid) {
4713 open STDOUT, '>&', $wfd or
4714 ::fatal "Can't redirect to stdout: $!";
4715 return;
4716 }
4717 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
4718 $ENV{LESS} ||= 'FRSX';
4719 exec $pager or ::fatal "Can't run pager: $! ($pager)";
4720 }
4721
4722 sub format_svn_date {
4723 return strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)", localtime(shift));
4724 }
4725
4726 sub parse_git_date {
4727 my ($t, $tz) = @_;
4728 # Date::Parse isn't in the standard Perl distro :(
4729 if ($tz =~ s/^\+//) {
4730 $t += tz_to_s_offset($tz);
4731 } elsif ($tz =~ s/^\-//) {
4732 $t -= tz_to_s_offset($tz);
4733 }
4734 return $t;
4735 }
4736
4737 sub set_local_timezone {
4738 if (defined $TZ) {
4739 $ENV{TZ} = $TZ;
4740 } else {
4741 delete $ENV{TZ};
4742 }
4743 }
4744
4745 sub tz_to_s_offset {
4746 my ($tz) = @_;
4747 $tz =~ s/(\d\d)$//;
4748 return ($1 * 60) + ($tz * 3600);
4749 }
4750
4751 sub get_author_info {
4752 my ($dest, $author, $t, $tz) = @_;
4753 $author =~ s/(?:^\s*|\s*$)//g;
4754 $dest->{a_raw} = $author;
4755 my $au;
4756 if ($::_authors) {
4757 $au = $rusers{$author} || undef;
4758 }
4759 if (!$au) {
4760 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
4761 }
4762 $dest->{t} = $t;
4763 $dest->{tz} = $tz;
4764 $dest->{a} = $au;
4765 $dest->{t_utc} = parse_git_date($t, $tz);
4766 }
4767
4768 sub process_commit {
4769 my ($c, $r_min, $r_max, $defer) = @_;
4770 if (defined $r_min && defined $r_max) {
4771 if ($r_min == $c->{r} && $r_min == $r_max) {
4772 show_commit($c);
4773 return 0;
4774 }
4775 return 1 if $r_min == $r_max;
4776 if ($r_min < $r_max) {
4777 # we need to reverse the print order
4778 return 0 if (defined $limit && --$limit < 0);
4779 push @$defer, $c;
4780 return 1;
4781 }
4782 if ($r_min != $r_max) {
4783 return 1 if ($r_min < $c->{r});
4784 return 1 if ($r_max > $c->{r});
4785 }
4786 }
4787 return 0 if (defined $limit && --$limit < 0);
4788 show_commit($c);
4789 return 1;
4790 }
4791
4792 sub show_commit {
4793 my $c = shift;
4794 if ($oneline) {
4795 my $x = "\n";
4796 if (my $l = $c->{l}) {
4797 while ($l->[0] =~ /^\s*$/) { shift @$l }
4798 $x = $l->[0];
4799 }
4800 $l_fmt ||= 'A' . length($c->{r});
4801 print 'r',pack($l_fmt, $c->{r}),' | ';
4802 print "$c->{c} | " if $show_commit;
4803 print $x;
4804 } else {
4805 show_commit_normal($c);
4806 }
4807 }
4808
4809 sub show_commit_changed_paths {
4810 my ($c) = @_;
4811 return unless $c->{changed};
4812 print "Changed paths:\n", @{$c->{changed}};
4813 }
4814
4815 sub show_commit_normal {
4816 my ($c) = @_;
4817 print commit_log_separator, "r$c->{r} | ";
4818 print "$c->{c} | " if $show_commit;
4819 print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
4820 my $nr_line = 0;
4821
4822 if (my $l = $c->{l}) {
4823 while ($l->[$#$l] eq "\n" && $#$l > 0
4824 && $l->[($#$l - 1)] eq "\n") {
4825 pop @$l;
4826 }
4827 $nr_line = scalar @$l;
4828 if (!$nr_line) {
4829 print "1 line\n\n\n";
4830 } else {
4831 if ($nr_line == 1) {
4832 $nr_line = '1 line';
4833 } else {
4834 $nr_line .= ' lines';
4835 }
4836 print $nr_line, "\n";
4837 show_commit_changed_paths($c);
4838 print "\n";
4839 print $_ foreach @$l;
4840 }
4841 } else {
4842 print "1 line\n";
4843 show_commit_changed_paths($c);
4844 print "\n";
4845
4846 }
4847 foreach my $x (qw/raw stat diff/) {
4848 if ($c->{$x}) {
4849 print "\n";
4850 print $_ foreach @{$c->{$x}}
4851 }
4852 }
4853 }
4854
4855 sub cmd_show_log {
4856 my (@args) = @_;
4857 my ($r_min, $r_max);
4858 my $r_last = -1; # prevent dupes
4859 set_local_timezone();
4860 if (defined $::_revision) {
4861 if ($::_revision =~ /^(\d+):(\d+)$/) {
4862 ($r_min, $r_max) = ($1, $2);
4863 } elsif ($::_revision =~ /^\d+$/) {
4864 $r_min = $r_max = $::_revision;
4865 } else {
4866 ::fatal "-r$::_revision is not supported, use ",
4867 "standard 'git log' arguments instead";
4868 }
4869 }
4870
4871 config_pager();
4872 @args = git_svn_log_cmd($r_min, $r_max, @args);
4873 if (!@args) {
4874 print commit_log_separator unless $incremental || $oneline;
4875 return;
4876 }
4877 my $log = command_output_pipe(@args);
4878 run_pager();
4879 my (@k, $c, $d, $stat);
4880 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
4881 while (<$log>) {
4882 if (/^${esc_color}commit -?($::sha1_short)/o) {
4883 my $cmt = $1;
4884 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
4885 $r_last = $c->{r};
4886 process_commit($c, $r_min, $r_max, \@k) or
4887 goto out;
4888 }
4889 $d = undef;
4890 $c = { c => $cmt };
4891 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
4892 get_author_info($c, $1, $2, $3);
4893 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
4894 # ignore
4895 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
4896 push @{$c->{raw}}, $_;
4897 } elsif (/^${esc_color}[ACRMDT]\t/) {
4898 # we could add $SVN->{svn_path} here, but that requires
4899 # remote access at the moment (repo_path_split)...
4900 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
4901 push @{$c->{changed}}, $_;
4902 } elsif (/^${esc_color}diff /o) {
4903 $d = 1;
4904 push @{$c->{diff}}, $_;
4905 } elsif ($d) {
4906 push @{$c->{diff}}, $_;
4907 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
4908 $esc_color*[\+\-]*$esc_color$/x) {
4909 $stat = 1;
4910 push @{$c->{stat}}, $_;
4911 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
4912 push @{$c->{stat}}, $_;
4913 $stat = undef;
4914 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
4915 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
4916 } elsif (s/^${esc_color} //o) {
4917 push @{$c->{l}}, $_;
4918 }
4919 }
4920 if ($c && defined $c->{r} && $c->{r} != $r_last) {
4921 $r_last = $c->{r};
4922 process_commit($c, $r_min, $r_max, \@k);
4923 }
4924 if (@k) {
4925 ($r_min, $r_max) = ($r_max, $r_min);
4926 process_commit($_, $r_min, $r_max) foreach reverse @k;
4927 }
4928 out:
4929 close $log;
4930 print commit_log_separator unless $incremental || $oneline;
4931 }
4932
4933 sub cmd_blame {
4934 my $path = pop;
4935
4936 config_pager();
4937 run_pager();
4938
4939 my ($fh, $ctx, $rev);
4940
4941 if ($_git_format) {
4942 ($fh, $ctx) = command_output_pipe('blame', @_, $path);
4943 while (my $line = <$fh>) {
4944 if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
4945 # Uncommitted edits show up as a rev ID of
4946 # all zeros, which we can't look up with
4947 # cmt_metadata
4948 if ($1 !~ /^0+$/) {
4949 (undef, $rev, undef) =
4950 ::cmt_metadata($1);
4951 $rev = '0' if (!$rev);
4952 } else {
4953 $rev = '0';
4954 }
4955 $rev = sprintf('%-10s', $rev);
4956 $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
4957 }
4958 print $line;
4959 }
4960 } else {
4961 ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
4962 '--', $path);
4963 my ($sha1);
4964 my %authors;
4965 while (my $line = <$fh>) {
4966 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
4967 $sha1 = $1;
4968 (undef, $rev, undef) = ::cmt_metadata($1);
4969 $rev = '0' if (!$rev);
4970 }
4971 elsif ($line =~ /^author (.*)/) {
4972 $authors{$rev} = $1;
4973 $authors{$rev} =~ s/\s/_/g;
4974 }
4975 elsif ($line =~ /^\t(.*)$/) {
4976 printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
4977 }
4978 }
4979 }
4980 command_close_pipe($fh, $ctx);
4981 }
4982
4983 package Git::SVN::Migration;
4984 # these version numbers do NOT correspond to actual version numbers
4985 # of git nor git-svn. They are just relative.
4986 #
4987 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
4988 #
4989 # v1 layout: .git/$id/info/url, refs/remotes/$id
4990 #
4991 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
4992 #
4993 # v3 layout: .git/svn/$id, refs/remotes/$id
4994 # - info/url may remain for backwards compatibility
4995 # - this is what we migrate up to this layout automatically,
4996 # - this will be used by git svn init on single branches
4997 # v3.1 layout (auto migrated):
4998 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
4999 # for backwards compatibility
5000 #
5001 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
5002 # - this is only created for newly multi-init-ed
5003 # repositories. Similar in spirit to the
5004 # --use-separate-remotes option in git-clone (now default)
5005 # - we do not automatically migrate to this (following
5006 # the example set by core git)
5007 #
5008 # v5 layout: .rev_db.$UUID => .rev_map.$UUID
5009 # - newer, more-efficient format that uses 24-bytes per record
5010 # with no filler space.
5011 # - use xxd -c24 < .rev_map.$UUID to view and debug
5012 # - This is a one-way migration, repositories updated to the
5013 # new format will not be able to use old git-svn without
5014 # rebuilding the .rev_db. Rebuilding the rev_db is not
5015 # possible if noMetadata or useSvmProps are set; but should
5016 # be no problem for users that use the (sensible) defaults.
5017 use strict;
5018 use warnings;
5019 use Carp qw/croak/;
5020 use File::Path qw/mkpath/;
5021 use File::Basename qw/dirname basename/;
5022 use vars qw/$_minimize/;
5023
5024 sub migrate_from_v0 {
5025 my $git_dir = $ENV{GIT_DIR};
5026 return undef unless -d $git_dir;
5027 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5028 my $migrated = 0;
5029 while (<$fh>) {
5030 chomp;
5031 my ($id, $orig_ref) = ($_, $_);
5032 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
5033 next unless -f "$git_dir/$id/info/url";
5034 my $new_ref = "refs/remotes/$id";
5035 if (::verify_ref("$new_ref^0")) {
5036 print STDERR "W: $orig_ref is probably an old ",
5037 "branch used by an ancient version of ",
5038 "git-svn.\n",
5039 "However, $new_ref also exists.\n",
5040 "We will not be able ",
5041 "to use this branch until this ",
5042 "ambiguity is resolved.\n";
5043 next;
5044 }
5045 print STDERR "Migrating from v0 layout...\n" if !$migrated;
5046 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
5047 command_noisy('update-ref', $new_ref, $orig_ref);
5048 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
5049 $migrated++;
5050 }
5051 command_close_pipe($fh, $ctx);
5052 print STDERR "Done migrating from v0 layout...\n" if $migrated;
5053 $migrated;
5054 }
5055
5056 sub migrate_from_v1 {
5057 my $git_dir = $ENV{GIT_DIR};
5058 my $migrated = 0;
5059 return $migrated unless -d $git_dir;
5060 my $svn_dir = "$git_dir/svn";
5061
5062 # just in case somebody used 'svn' as their $id at some point...
5063 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
5064
5065 print STDERR "Migrating from a git-svn v1 layout...\n";
5066 mkpath([$svn_dir]);
5067 print STDERR "Data from a previous version of git-svn exists, but\n\t",
5068 "$svn_dir\n\t(required for this version ",
5069 "($::VERSION) of git-svn) does not exist.\n";
5070 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5071 while (<$fh>) {
5072 my $x = $_;
5073 next unless $x =~ s#^refs/remotes/##;
5074 chomp $x;
5075 next unless -f "$git_dir/$x/info/url";
5076 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
5077 next unless $u;
5078 my $dn = dirname("$git_dir/svn/$x");
5079 mkpath([$dn]) unless -d $dn;
5080 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
5081 mkpath(["$git_dir/svn/svn"]);
5082 print STDERR " - $git_dir/$x/info => ",
5083 "$git_dir/svn/$x/info\n";
5084 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
5085 croak "$!: $x";
5086 # don't worry too much about these, they probably
5087 # don't exist with repos this old (save for index,
5088 # and we can easily regenerate that)
5089 foreach my $f (qw/unhandled.log index .rev_db/) {
5090 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
5091 }
5092 } else {
5093 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
5094 rename "$git_dir/$x", "$git_dir/svn/$x" or
5095 croak "$!: $x";
5096 }
5097 $migrated++;
5098 }
5099 command_close_pipe($fh, $ctx);
5100 print STDERR "Done migrating from a git-svn v1 layout\n";
5101 $migrated;
5102 }
5103
5104 sub read_old_urls {
5105 my ($l_map, $pfx, $path) = @_;
5106 my @dir;
5107 foreach (<$path/*>) {
5108 if (-r "$_/info/url") {
5109 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
5110 my $ref_id = $pfx . basename $_;
5111 my $url = ::file_to_s("$_/info/url");
5112 $l_map->{$ref_id} = $url;
5113 } elsif (-d $_) {
5114 push @dir, $_;
5115 }
5116 }
5117 foreach (@dir) {
5118 my $x = $_;
5119 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
5120 read_old_urls($l_map, $x, $_);
5121 }
5122 }
5123
5124 sub migrate_from_v2 {
5125 my @cfg = command(qw/config -l/);
5126 return if grep /^svn-remote\..+\.url=/, @cfg;
5127 my %l_map;
5128 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
5129 my $migrated = 0;
5130
5131 foreach my $ref_id (sort keys %l_map) {
5132 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
5133 if ($@) {
5134 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
5135 }
5136 $migrated++;
5137 }
5138 $migrated;
5139 }
5140
5141 sub minimize_connections {
5142 my $r = Git::SVN::read_all_remotes();
5143 my $new_urls = {};
5144 my $root_repos = {};
5145 foreach my $repo_id (keys %$r) {
5146 my $url = $r->{$repo_id}->{url} or next;
5147 my $fetch = $r->{$repo_id}->{fetch} or next;
5148 my $ra = Git::SVN::Ra->new($url);
5149
5150 # skip existing cases where we already connect to the root
5151 if (($ra->{url} eq $ra->{repos_root}) ||
5152 ($ra->{repos_root} eq $repo_id)) {
5153 $root_repos->{$ra->{url}} = $repo_id;
5154 next;
5155 }
5156
5157 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
5158 my $root_path = $ra->{url};
5159 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
5160 foreach my $path (keys %$fetch) {
5161 my $ref_id = $fetch->{$path};
5162 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
5163
5164 # make sure we can read when connecting to
5165 # a higher level of a repository
5166 my ($last_rev, undef) = $gs->last_rev_commit;
5167 if (!defined $last_rev) {
5168 $last_rev = eval {
5169 $root_ra->get_latest_revnum;
5170 };
5171 next if $@;
5172 }
5173 my $new = $root_path;
5174 $new .= length $path ? "/$path" : '';
5175 eval {
5176 $root_ra->get_log([$new], $last_rev, $last_rev,
5177 0, 0, 1, sub { });
5178 };
5179 next if $@;
5180 $new_urls->{$ra->{repos_root}}->{$new} =
5181 { ref_id => $ref_id,
5182 old_repo_id => $repo_id,
5183 old_path => $path };
5184 }
5185 }
5186
5187 my @emptied;
5188 foreach my $url (keys %$new_urls) {
5189 # see if we can re-use an existing [svn-remote "repo_id"]
5190 # instead of creating a(n ugly) new section:
5191 my $repo_id = $root_repos->{$url} || $url;
5192
5193 my $fetch = $new_urls->{$url};
5194 foreach my $path (keys %$fetch) {
5195 my $x = $fetch->{$path};
5196 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
5197 my $pfx = "svn-remote.$x->{old_repo_id}";
5198
5199 my $old_fetch = quotemeta("$x->{old_path}:".
5200 "refs/remotes/$x->{ref_id}");
5201 command_noisy(qw/config --unset/,
5202 "$pfx.fetch", '^'. $old_fetch . '$');
5203 delete $r->{$x->{old_repo_id}}->
5204 {fetch}->{$x->{old_path}};
5205 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
5206 command_noisy(qw/config --unset/,
5207 "$pfx.url");
5208 push @emptied, $x->{old_repo_id}
5209 }
5210 }
5211 }
5212 if (@emptied) {
5213 my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config";
5214 print STDERR <<EOF;
5215 The following [svn-remote] sections in your config file ($file) are empty
5216 and can be safely removed:
5217 EOF
5218 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
5219 }
5220 }
5221
5222 sub migration_check {
5223 migrate_from_v0();
5224 migrate_from_v1();
5225 migrate_from_v2();
5226 minimize_connections() if $_minimize;
5227 }
5228
5229 package Git::IndexInfo;
5230 use strict;
5231 use warnings;
5232 use Git qw/command_input_pipe command_close_pipe/;
5233
5234 sub new {
5235 my ($class) = @_;
5236 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
5237 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
5238 }
5239
5240 sub remove {
5241 my ($self, $path) = @_;
5242 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
5243 return ++$self->{nr};
5244 }
5245 undef;
5246 }
5247
5248 sub update {
5249 my ($self, $mode, $hash, $path) = @_;
5250 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
5251 return ++$self->{nr};
5252 }
5253 undef;
5254 }
5255
5256 sub DESTROY {
5257 my ($self) = @_;
5258 command_close_pipe($self->{gui}, $self->{ctx});
5259 }
5260
5261 package Git::SVN::GlobSpec;
5262 use strict;
5263 use warnings;
5264
5265 sub new {
5266 my ($class, $glob) = @_;
5267 my $re = $glob;
5268 $re =~ s!/+$!!g; # no need for trailing slashes
5269 $re =~ m!^([^*]*)(\*(?:/\*)*)([^*]*)$!;
5270 my $temp = $re;
5271 my ($left, $right) = ($1, $3);
5272 $re = $2;
5273 my $depth = $re =~ tr/*/*/;
5274 if ($depth != $temp =~ tr/*/*/) {
5275 die "Only one set of wildcard directories " .
5276 "(e.g. '*' or '*/*/*') is supported: '$glob'\n";
5277 }
5278 if ($depth == 0) {
5279 die "One '*' is needed for glob: '$glob'\n";
5280 }
5281 $re =~ s!\*!\[^/\]*!g;
5282 $re = quotemeta($left) . "($re)" . quotemeta($right);
5283 if (length $left && !($left =~ s!/+$!!g)) {
5284 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
5285 }
5286 if (length $right && !($right =~ s!^/+!!g)) {
5287 die "Missing leading '/' on right side of: '$glob' ($right)\n";
5288 }
5289 my $left_re = qr/^\/\Q$left\E(\/|$)/;
5290 bless { left => $left, right => $right, left_regex => $left_re,
5291 regex => qr/$re/, glob => $glob, depth => $depth }, $class;
5292 }
5293
5294 sub full_path {
5295 my ($self, $path) = @_;
5296 return (length $self->{left} ? "$self->{left}/" : '') .
5297 $path . (length $self->{right} ? "/$self->{right}" : '');
5298 }
5299
5300 __END__
5301
5302 Data structures:
5303
5304
5305 $remotes = { # returned by read_all_remotes()
5306 'svn' => {
5307 # svn-remote.svn.url=https://svn.musicpd.org
5308 url => 'https://svn.musicpd.org',
5309 # svn-remote.svn.fetch=mpd/trunk:trunk
5310 fetch => {
5311 'mpd/trunk' => 'trunk',
5312 },
5313 # svn-remote.svn.tags=mpd/tags/*:tags/*
5314 tags => {
5315 path => {
5316 left => 'mpd/tags',
5317 right => '',
5318 regex => qr!mpd/tags/([^/]+)$!,
5319 glob => 'tags/*',
5320 },
5321 ref => {
5322 left => 'tags',
5323 right => '',
5324 regex => qr!tags/([^/]+)$!,
5325 glob => 'tags/*',
5326 },
5327 }
5328 }
5329 };
5330
5331 $log_entry hashref as returned by libsvn_log_entry()
5332 {
5333 log => 'whitespace-formatted log entry
5334 ', # trailing newline is preserved
5335 revision => '8', # integer
5336 date => '2004-02-24T17:01:44.108345Z', # commit date
5337 author => 'committer name'
5338 };
5339
5340
5341 # this is generated by generate_diff();
5342 @mods = array of diff-index line hashes, each element represents one line
5343 of diff-index output
5344
5345 diff-index line ($m hash)
5346 {
5347 mode_a => first column of diff-index output, no leading ':',
5348 mode_b => second column of diff-index output,
5349 sha1_b => sha1sum of the final blob,
5350 chg => change type [MCRADT],
5351 file_a => original file name of a file (iff chg is 'C' or 'R')
5352 file_b => new/current file name of a file (any chg)
5353 }
5354 ;
5355
5356 # retval of read_url_paths{,_all}();
5357 $l_map = {
5358 # repository root url
5359 'https://svn.musicpd.org' => {
5360 # repository path # GIT_SVN_ID
5361 'mpd/trunk' => 'trunk',
5362 'mpd/tags/0.11.5' => 'tags/0.11.5',
5363 },
5364 }
5365
5366 Notes:
5367 I don't trust the each() function on unless I created %hash myself
5368 because the internal iterator may not have started at base.
Git windows helper(/mini-wrapper) lib