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Test tracking of non-commit upstreams
[git/kirr.git] / git-svn.perl
blob959eb52f3fbe01c5f13eeb169549da98b0b9d64f
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
442 if (defined $_commit_url) {
443 $url = $_commit_url;
444 } else {
445 $url = eval { command_oneline('config', '--get',
446 "svn-remote.$gs->{repo_id}.commiturl") };
447 if (!$url) {
448 $url = $gs->full_url
449 }
450 }
451
452 my $last_rev = $_revision if defined $_revision;
453 if ($url) {
454 print "Committing to $url ...\n";
455 }
456 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
457 if ($_no_rebase && scalar(@$linear_refs) > 1) {
458 warn "Attempting to commit more than one change while ",
459 "--no-rebase is enabled.\n",
460 "If these changes depend on each other, re-running ",
461 "without --no-rebase may be required."
462 }
463 my $expect_url = $url;
464 Git::SVN::remove_username($expect_url);
465 while (1) {
466 my $d = shift @$linear_refs or last;
467 unless (defined $last_rev) {
468 (undef, $last_rev, undef) = cmt_metadata("$d~1");
469 unless (defined $last_rev) {
470 fatal "Unable to extract revision information ",
471 "from commit $d~1";
472 }
473 }
474 if ($_dry_run) {
475 print "diff-tree $d~1 $d\n";
476 } else {
477 my $cmt_rev;
478 my %ed_opts = ( r => $last_rev,
479 log => get_commit_entry($d)->{log},
480 ra => Git::SVN::Ra->new($url),
481 config => SVN::Core::config_get_config(
482 $Git::SVN::Ra::config_dir
483 ),
484 tree_a => "$d~1",
485 tree_b => $d,
486 editor_cb => sub {
487 print "Committed r$_[0]\n";
488 $cmt_rev = $_[0];
489 },
490 svn_path => '');
491 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
492 print "No changes\n$d~1 == $d\n";
493 } elsif ($parents->{$d} && @{$parents->{$d}}) {
494 $gs->{inject_parents_dcommit}->{$cmt_rev} =
495 $parents->{$d};
496 }
497 $_fetch_all ? $gs->fetch_all : $gs->fetch;
498 $last_rev = $cmt_rev;
499 next if $_no_rebase;
500
501 # we always want to rebase against the current HEAD,
502 # not any head that was passed to us
503 my @diff = command('diff-tree', $d,
504 $gs->refname, '--');
505 my @finish;
506 if (@diff) {
507 @finish = rebase_cmd();
508 print STDERR "W: $d and ", $gs->refname,
509 " differ, using @finish:\n",
510 join("\n", @diff), "\n";
511 } else {
512 print "No changes between current HEAD and ",
513 $gs->refname,
514 "\nResetting to the latest ",
515 $gs->refname, "\n";
516 @finish = qw/reset --mixed/;
517 }
518 command_noisy(@finish, $gs->refname);
519 if (@diff) {
520 @refs = ();
521 my ($url_, $rev_, $uuid_, $gs_) =
522 working_head_info($head, \@refs);
523 my ($linear_refs_, $parents_) =
524 linearize_history($gs_, \@refs);
525 if (scalar(@$linear_refs) !=
526 scalar(@$linear_refs_)) {
527 fatal "# of revisions changed ",
528 "\nbefore:\n",
529 join("\n", @$linear_refs),
530 "\n\nafter:\n",
531 join("\n", @$linear_refs_), "\n",
532 'If you are attempting to commit ',
533 "merges, try running:\n\t",
534 'git rebase --interactive',
535 '--preserve-merges ',
536 $gs->refname,
537 "\nBefore dcommitting";
538 }
539 if ($url_ ne $expect_url) {
540 fatal "URL mismatch after rebase: ",
541 "$url_ != $expect_url";
542 }
543 if ($uuid_ ne $uuid) {
544 fatal "uuid mismatch after rebase: ",
545 "$uuid_ != $uuid";
546 }
547 # remap parents
548 my (%p, @l, $i);
549 for ($i = 0; $i < scalar @$linear_refs; $i++) {
550 my $new = $linear_refs_->[$i] or next;
551 $p{$new} =
552 $parents->{$linear_refs->[$i]};
553 push @l, $new;
554 }
555 $parents = \%p;
556 $linear_refs = \@l;
557 }
558 }
559 }
560 unlink $gs->{index};
561 }
562
563 sub cmd_branch {
564 my ($branch_name, $head) = @_;
565
566 unless (defined $branch_name && length $branch_name) {
567 die(($_tag ? "tag" : "branch") . " name required\n");
568 }
569 $head ||= 'HEAD';
570
571 my ($src, $rev, undef, $gs) = working_head_info($head);
572
573 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
574 my $glob = $remote->{ $_tag ? 'tags' : 'branches' };
575 my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
576 my $dst = join '/', $remote->{url}, $lft, $branch_name, ($rgt || ());
577
578 my $ctx = SVN::Client->new(
579 auth => Git::SVN::Ra::_auth_providers(),
580 log_msg => sub {
581 ${ $_[0] } = defined $_message
582 ? $_message
583 : 'Create ' . ($_tag ? 'tag ' : 'branch ' )
584 . $branch_name;
585 },
586 );
587
588 eval {
589 $ctx->ls($dst, 'HEAD', 0);
590 } and die "branch ${branch_name} already exists\n";
591
592 print "Copying ${src} at r${rev} to ${dst}...\n";
593 $ctx->copy($src, $rev, $dst)
594 unless $_dry_run;
595
596 $gs->fetch_all;
597 }
598
599 sub cmd_find_rev {
600 my $revision_or_hash = shift or die "SVN or git revision required ",
601 "as a command-line argument\n";
602 my $result;
603 if ($revision_or_hash =~ /^r\d+$/) {
604 my $head = shift;
605 $head ||= 'HEAD';
606 my @refs;
607 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
608 unless ($gs) {
609 die "Unable to determine upstream SVN information from ",
610 "$head history\n";
611 }
612 my $desired_revision = substr($revision_or_hash, 1);
613 $result = $gs->rev_map_get($desired_revision, $uuid);
614 } else {
615 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
616 $result = $rev;
617 }
618 print "$result\n" if $result;
619 }
620
621 sub cmd_rebase {
622 command_noisy(qw/update-index --refresh/);
623 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
624 unless ($gs) {
625 die "Unable to determine upstream SVN information from ",
626 "working tree history\n";
627 }
628 if ($_dry_run) {
629 print "Remote Branch: " . $gs->refname . "\n";
630 print "SVN URL: " . $url . "\n";
631 return;
632 }
633 if (command(qw/diff-index HEAD --/)) {
634 print STDERR "Cannot rebase with uncommited changes:\n";
635 command_noisy('status');
636 exit 1;
637 }
638 unless ($_local) {
639 # rebase will checkout for us, so no need to do it explicitly
640 $_no_checkout = 'true';
641 $_fetch_all ? $gs->fetch_all : $gs->fetch;
642 }
643 command_noisy(rebase_cmd(), $gs->refname);
644 }
645
646 sub cmd_show_ignore {
647 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
648 $gs ||= Git::SVN->new;
649 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
650 $gs->prop_walk($gs->{path}, $r, sub {
651 my ($gs, $path, $props) = @_;
652 print STDOUT "\n# $path\n";
653 my $s = $props->{'svn:ignore'} or return;
654 $s =~ s/[\r\n]+/\n/g;
655 chomp $s;
656 $s =~ s#^#$path#gm;
657 print STDOUT "$s\n";
658 });
659 }
660
661 sub cmd_show_externals {
662 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
663 $gs ||= Git::SVN->new;
664 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
665 $gs->prop_walk($gs->{path}, $r, sub {
666 my ($gs, $path, $props) = @_;
667 print STDOUT "\n# $path\n";
668 my $s = $props->{'svn:externals'} or return;
669 $s =~ s/[\r\n]+/\n/g;
670 chomp $s;
671 $s =~ s#^#$path#gm;
672 print STDOUT "$s\n";
673 });
674 }
675
676 sub cmd_create_ignore {
677 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
678 $gs ||= Git::SVN->new;
679 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
680 $gs->prop_walk($gs->{path}, $r, sub {
681 my ($gs, $path, $props) = @_;
682 # $path is of the form /path/to/dir/
683 $path = '.' . $path;
684 # SVN can have attributes on empty directories,
685 # which git won't track
686 mkpath([$path]) unless -d $path;
687 my $ignore = $path . '.gitignore';
688 my $s = $props->{'svn:ignore'} or return;
689 open(GITIGNORE, '>', $ignore)
690 or fatal("Failed to open `$ignore' for writing: $!");
691 $s =~ s/[\r\n]+/\n/g;
692 chomp $s;
693 # Prefix all patterns so that the ignore doesn't apply
694 # to sub-directories.
695 $s =~ s#^#/#gm;
696 print GITIGNORE "$s\n";
697 close(GITIGNORE)
698 or fatal("Failed to close `$ignore': $!");
699 command_noisy('add', '-f', $ignore);
700 });
701 }
702
703 sub canonicalize_path {
704 my ($path) = @_;
705 my $dot_slash_added = 0;
706 if (substr($path, 0, 1) ne "/") {
707 $path = "./" . $path;
708 $dot_slash_added = 1;
709 }
710 # File::Spec->canonpath doesn't collapse x/../y into y (for a
711 # good reason), so let's do this manually.
712 $path =~ s#/+#/#g;
713 $path =~ s#/\.(?:/|$)#/#g;
714 $path =~ s#/[^/]+/\.\.##g;
715 $path =~ s#/$##g;
716 $path =~ s#^\./## if $dot_slash_added;
717 $path =~ s#^/##;
718 $path =~ s#^\.$##;
719 return $path;
720 }
721
722 # get_svnprops(PATH)
723 # ------------------
724 # Helper for cmd_propget and cmd_proplist below.
725 sub get_svnprops {
726 my $path = shift;
727 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
728 $gs ||= Git::SVN->new;
729
730 # prefix THE PATH by the sub-directory from which the user
731 # invoked us.
732 $path = $cmd_dir_prefix . $path;
733 fatal("No such file or directory: $path") unless -e $path;
734 my $is_dir = -d $path ? 1 : 0;
735 $path = $gs->{path} . '/' . $path;
736
737 # canonicalize the path (otherwise libsvn will abort or fail to
738 # find the file)
739 $path = canonicalize_path($path);
740
741 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
742 my $props;
743 if ($is_dir) {
744 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
745 }
746 else {
747 (undef, $props) = $gs->ra->get_file($path, $r, undef);
748 }
749 return $props;
750 }
751
752 # cmd_propget (PROP, PATH)
753 # ------------------------
754 # Print the SVN property PROP for PATH.
755 sub cmd_propget {
756 my ($prop, $path) = @_;
757 $path = '.' if not defined $path;
758 usage(1) if not defined $prop;
759 my $props = get_svnprops($path);
760 if (not defined $props->{$prop}) {
761 fatal("`$path' does not have a `$prop' SVN property.");
762 }
763 print $props->{$prop} . "\n";
764 }
765
766 # cmd_proplist (PATH)
767 # -------------------
768 # Print the list of SVN properties for PATH.
769 sub cmd_proplist {
770 my $path = shift;
771 $path = '.' if not defined $path;
772 my $props = get_svnprops($path);
773 print "Properties on '$path':\n";
774 foreach (sort keys %{$props}) {
775 print " $_\n";
776 }
777 }
778
779 sub cmd_multi_init {
780 my $url = shift;
781 unless (defined $_trunk || defined $_branches || defined $_tags) {
782 usage(1);
783 }
784
785 # there are currently some bugs that prevent multi-init/multi-fetch
786 # setups from working well without this.
787 $Git::SVN::_minimize_url = 1;
788
789 $_prefix = '' unless defined $_prefix;
790 if (defined $url) {
791 $url =~ s#/+$##;
792 init_subdir(@_);
793 }
794 do_git_init_db();
795 if (defined $_trunk) {
796 my $trunk_ref = $_prefix . 'trunk';
797 # try both old-style and new-style lookups:
798 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
799 unless ($gs_trunk) {
800 my ($trunk_url, $trunk_path) =
801 complete_svn_url($url, $_trunk);
802 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
803 undef, $trunk_ref);
804 }
805 }
806 return unless defined $_branches || defined $_tags;
807 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
808 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
809 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
810 }
811
812 sub cmd_multi_fetch {
813 my $remotes = Git::SVN::read_all_remotes();
814 foreach my $repo_id (sort keys %$remotes) {
815 if ($remotes->{$repo_id}->{url}) {
816 Git::SVN::fetch_all($repo_id, $remotes);
817 }
818 }
819 }
820
821 # this command is special because it requires no metadata
822 sub cmd_commit_diff {
823 my ($ta, $tb, $url) = @_;
824 my $usage = "Usage: $0 commit-diff -r<revision> ".
825 "<tree-ish> <tree-ish> [<URL>]";
826 fatal($usage) if (!defined $ta || !defined $tb);
827 my $svn_path = '';
828 if (!defined $url) {
829 my $gs = eval { Git::SVN->new };
830 if (!$gs) {
831 fatal("Needed URL or usable git-svn --id in ",
832 "the command-line\n", $usage);
833 }
834 $url = $gs->{url};
835 $svn_path = $gs->{path};
836 }
837 unless (defined $_revision) {
838 fatal("-r|--revision is a required argument\n", $usage);
839 }
840 if (defined $_message && defined $_file) {
841 fatal("Both --message/-m and --file/-F specified ",
842 "for the commit message.\n",
843 "I have no idea what you mean");
844 }
845 if (defined $_file) {
846 $_message = file_to_s($_file);
847 } else {
848 $_message ||= get_commit_entry($tb)->{log};
849 }
850 my $ra ||= Git::SVN::Ra->new($url);
851 my $r = $_revision;
852 if ($r eq 'HEAD') {
853 $r = $ra->get_latest_revnum;
854 } elsif ($r !~ /^\d+$/) {
855 die "revision argument: $r not understood by git-svn\n";
856 }
857 my %ed_opts = ( r => $r,
858 log => $_message,
859 ra => $ra,
860 tree_a => $ta,
861 tree_b => $tb,
862 editor_cb => sub { print "Committed r$_[0]\n" },
863 svn_path => $svn_path );
864 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
865 print "No changes\n$ta == $tb\n";
866 }
867 }
868
869 sub escape_uri_only {
870 my ($uri) = @_;
871 my @tmp;
872 foreach (split m{/}, $uri) {
873 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
874 push @tmp, $_;
875 }
876 join('/', @tmp);
877 }
878
879 sub escape_url {
880 my ($url) = @_;
881 if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) {
882 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
883 $url = "$scheme://$domain$uri";
884 }
885 $url;
886 }
887
888 sub cmd_info {
889 my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
890 my $fullpath = canonicalize_path($cmd_dir_prefix . $path);
891 if (exists $_[1]) {
892 die "Too many arguments specified\n";
893 }
894
895 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
896
897 if (!$file_type && !$diff_status) {
898 print STDERR "svn: '$path' is not under version control\n";
899 exit 1;
900 }
901
902 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
903 unless ($gs) {
904 die "Unable to determine upstream SVN information from ",
905 "working tree history\n";
906 }
907
908 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
909 $path = "." if $path eq "";
910
911 my $full_url = $url . ($fullpath eq "" ? "" : "/$fullpath");
912
913 if ($_url) {
914 print escape_url($full_url), "\n";
915 return;
916 }
917
918 my $result = "Path: $path\n";
919 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
920 $result .= "URL: " . escape_url($full_url) . "\n";
921
922 eval {
923 my $repos_root = $gs->repos_root;
924 Git::SVN::remove_username($repos_root);
925 $result .= "Repository Root: " . escape_url($repos_root) . "\n";
926 };
927 if ($@) {
928 $result .= "Repository Root: (offline)\n";
929 }
930 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
931 ($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir");
932 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
933
934 $result .= "Node Kind: " .
935 ($file_type eq "dir" ? "directory" : "file") . "\n";
936
937 my $schedule = $diff_status eq "A"
938 ? "add"
939 : ($diff_status eq "D" ? "delete" : "normal");
940 $result .= "Schedule: $schedule\n";
941
942 if ($diff_status eq "A") {
943 print $result, "\n";
944 return;
945 }
946
947 my ($lc_author, $lc_rev, $lc_date_utc);
948 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $fullpath);
949 my $log = command_output_pipe(@args);
950 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
951 while (<$log>) {
952 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
953 $lc_author = $1;
954 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
955 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
956 (undef, $lc_rev, undef) = ::extract_metadata($1);
957 }
958 }
959 close $log;
960
961 Git::SVN::Log::set_local_timezone();
962
963 $result .= "Last Changed Author: $lc_author\n";
964 $result .= "Last Changed Rev: $lc_rev\n";
965 $result .= "Last Changed Date: " .
966 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
967
968 if ($file_type ne "dir") {
969 my $text_last_updated_date =
970 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
971 $result .=
972 "Text Last Updated: " .
973 Git::SVN::Log::format_svn_date($text_last_updated_date) .
974 "\n";
975 my $checksum;
976 if ($diff_status eq "D") {
977 my ($fh, $ctx) =
978 command_output_pipe(qw(cat-file blob), "HEAD:$path");
979 if ($file_type eq "link") {
980 my $file_name = <$fh>;
981 $checksum = md5sum("link $file_name");
982 } else {
983 $checksum = md5sum($fh);
984 }
985 command_close_pipe($fh, $ctx);
986 } elsif ($file_type eq "link") {
987 my $file_name =
988 command(qw(cat-file blob), "HEAD:$path");
989 $checksum =
990 md5sum("link " . $file_name);
991 } else {
992 open FILE, "<", $path or die $!;
993 $checksum = md5sum(\*FILE);
994 close FILE or die $!;
995 }
996 $result .= "Checksum: " . $checksum . "\n";
997 }
998
999 print $result, "\n";
1000 }
1001
1002 ########################### utility functions #########################
1003
1004 sub rebase_cmd {
1005 my @cmd = qw/rebase/;
1006 push @cmd, '-v' if $_verbose;
1007 push @cmd, qw/--merge/ if $_merge;
1008 push @cmd, "--strategy=$_strategy" if $_strategy;
1009 @cmd;
1010 }
1011
1012 sub post_fetch_checkout {
1013 return if $_no_checkout;
1014 my $gs = $Git::SVN::_head or return;
1015 return if verify_ref('refs/heads/master^0');
1016
1017 my $valid_head = verify_ref('HEAD^0');
1018 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
1019 return if ($valid_head || !verify_ref('HEAD^0'));
1020
1021 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
1022 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
1023 return if -f $index;
1024
1025 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
1026 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
1027 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
1028 print STDERR "Checked out HEAD:\n ",
1029 $gs->full_url, " r", $gs->last_rev, "\n";
1030 }
1031
1032 sub complete_svn_url {
1033 my ($url, $path) = @_;
1034 $path =~ s#/+$##;
1035 if ($path !~ m#^[a-z\+]+://#) {
1036 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
1037 fatal("E: '$path' is not a complete URL ",
1038 "and a separate URL is not specified");
1039 }
1040 return ($url, $path);
1041 }
1042 return ($path, '');
1043 }
1044
1045 sub complete_url_ls_init {
1046 my ($ra, $repo_path, $switch, $pfx) = @_;
1047 unless ($repo_path) {
1048 print STDERR "W: $switch not specified\n";
1049 return;
1050 }
1051 $repo_path =~ s#/+$##;
1052 if ($repo_path =~ m#^[a-z\+]+://#) {
1053 $ra = Git::SVN::Ra->new($repo_path);
1054 $repo_path = '';
1055 } else {
1056 $repo_path =~ s#^/+##;
1057 unless ($ra) {
1058 fatal("E: '$repo_path' is not a complete URL ",
1059 "and a separate URL is not specified");
1060 }
1061 }
1062 my $url = $ra->{url};
1063 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
1064 my $k = "svn-remote.$gs->{repo_id}.url";
1065 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
1066 if ($orig_url && ($orig_url ne $gs->{url})) {
1067 die "$k already set: $orig_url\n",
1068 "wanted to set to: $gs->{url}\n";
1069 }
1070 command_oneline('config', $k, $gs->{url}) unless $orig_url;
1071 my $remote_path = "$ra->{svn_path}/$repo_path";
1072 $remote_path =~ s#/+#/#g;
1073 $remote_path =~ s#^/##g;
1074 $remote_path .= "/*" if $remote_path !~ /\*/;
1075 my ($n) = ($switch =~ /^--(\w+)/);
1076 if (length $pfx && $pfx !~ m#/$#) {
1077 die "--prefix='$pfx' must have a trailing slash '/'\n";
1078 }
1079 command_noisy('config',
1080 "svn-remote.$gs->{repo_id}.$n",
1081 "$remote_path:refs/remotes/$pfx*" .
1082 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
1083 }
1084
1085 sub verify_ref {
1086 my ($ref) = @_;
1087 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1088 { STDERR => 0 }); };
1089 }
1090
1091 sub get_tree_from_treeish {
1092 my ($treeish) = @_;
1093 # $treeish can be a symbolic ref, too:
1094 my $type = command_oneline(qw/cat-file -t/, $treeish);
1095 my $expected;
1096 while ($type eq 'tag') {
1097 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1098 }
1099 if ($type eq 'commit') {
1100 $expected = (grep /^tree /, command(qw/cat-file commit/,
1101 $treeish))[0];
1102 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1103 die "Unable to get tree from $treeish\n" unless $expected;
1104 } elsif ($type eq 'tree') {
1105 $expected = $treeish;
1106 } else {
1107 die "$treeish is a $type, expected tree, tag or commit\n";
1108 }
1109 return $expected;
1110 }
1111
1112 sub get_commit_entry {
1113 my ($treeish) = shift;
1114 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1115 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1116 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1117 open my $log_fh, '>', $commit_editmsg or croak $!;
1118
1119 my $type = command_oneline(qw/cat-file -t/, $treeish);
1120 if ($type eq 'commit' || $type eq 'tag') {
1121 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1122 $type, $treeish);
1123 my $in_msg = 0;
1124 my $author;
1125 my $saw_from = 0;
1126 my $msgbuf = "";
1127 while (<$msg_fh>) {
1128 if (!$in_msg) {
1129 $in_msg = 1 if (/^\s*$/);
1130 $author = $1 if (/^author (.*>)/);
1131 } elsif (/^git-svn-id: /) {
1132 # skip this for now, we regenerate the
1133 # correct one on re-fetch anyways
1134 # TODO: set *:merge properties or like...
1135 } else {
1136 if (/^From:/ || /^Signed-off-by:/) {
1137 $saw_from = 1;
1138 }
1139 $msgbuf .= $_;
1140 }
1141 }
1142 $msgbuf =~ s/\s+$//s;
1143 if ($Git::SVN::_add_author_from && defined($author)
1144 && !$saw_from) {
1145 $msgbuf .= "\n\nFrom: $author";
1146 }
1147 print $log_fh $msgbuf or croak $!;
1148 command_close_pipe($msg_fh, $ctx);
1149 }
1150 close $log_fh or croak $!;
1151
1152 if ($_edit || ($type eq 'tree')) {
1153 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1154 # TODO: strip out spaces, comments, like git-commit.sh
1155 system($editor, $commit_editmsg);
1156 }
1157 rename $commit_editmsg, $commit_msg or croak $!;
1158 {
1159 # SVN requires messages to be UTF-8 when entering the repo
1160 local $/;
1161 open $log_fh, '<', $commit_msg or croak $!;
1162 binmode $log_fh;
1163 chomp($log_entry{log} = <$log_fh>);
1164
1165 if (my $enc = Git::config('i18n.commitencoding')) {
1166 require Encode;
1167 Encode::from_to($log_entry{log}, $enc, 'UTF-8');
1168 }
1169 close $log_fh or croak $!;
1170 }
1171 unlink $commit_msg;
1172 \%log_entry;
1173 }
1174
1175 sub s_to_file {
1176 my ($str, $file, $mode) = @_;
1177 open my $fd,'>',$file or croak $!;
1178 print $fd $str,"\n" or croak $!;
1179 close $fd or croak $!;
1180 chmod ($mode &~ umask, $file) if (defined $mode);
1181 }
1182
1183 sub file_to_s {
1184 my $file = shift;
1185 open my $fd,'<',$file or croak "$!: file: $file\n";
1186 local $/;
1187 my $ret = <$fd>;
1188 close $fd or croak $!;
1189 $ret =~ s/\s*$//s;
1190 return $ret;
1191 }
1192
1193 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1194 sub load_authors {
1195 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1196 my $log = $cmd eq 'log';
1197 while (<$authors>) {
1198 chomp;
1199 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1200 my ($user, $name, $email) = ($1, $2, $3);
1201 if ($log) {
1202 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1203 } else {
1204 $users{$user} = [$name, $email];
1205 }
1206 }
1207 close $authors or croak $!;
1208 }
1209
1210 # convert GetOpt::Long specs for use by git-config
1211 sub read_repo_config {
1212 return unless -d $ENV{GIT_DIR};
1213 my $opts = shift;
1214 my @config_only;
1215 foreach my $o (keys %$opts) {
1216 # if we have mixedCase and a long option-only, then
1217 # it's a config-only variable that we don't need for
1218 # the command-line.
1219 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1220 my $v = $opts->{$o};
1221 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1222 $key =~ s/-//g;
1223 my $arg = 'git config';
1224 $arg .= ' --int' if ($o =~ /[:=]i$/);
1225 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1226 if (ref $v eq 'ARRAY') {
1227 chomp(my @tmp = `$arg --get-all svn.$key`);
1228 @$v = @tmp if @tmp;
1229 } else {
1230 chomp(my $tmp = `$arg --get svn.$key`);
1231 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1232 $$v = $tmp;
1233 }
1234 }
1235 }
1236 delete @$opts{@config_only} if @config_only;
1237 }
1238
1239 sub extract_metadata {
1240 my $id = shift or return (undef, undef, undef);
1241 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1242 \s([a-f\d\-]+)$/x);
1243 if (!defined $rev || !$uuid || !$url) {
1244 # some of the original repositories I made had
1245 # identifiers like this:
1246 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1247 }
1248 return ($url, $rev, $uuid);
1249 }
1250
1251 sub cmt_metadata {
1252 return extract_metadata((grep(/^git-svn-id: /,
1253 command(qw/cat-file commit/, shift)))[-1]);
1254 }
1255
1256 sub working_head_info {
1257 my ($head, $refs) = @_;
1258 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1259 my ($fh, $ctx) = command_output_pipe(@args, $head);
1260 my $hash;
1261 my %max;
1262 while (<$fh>) {
1263 if ( m{^commit ($::sha1)$} ) {
1264 unshift @$refs, $hash if $hash and $refs;
1265 $hash = $1;
1266 next;
1267 }
1268 next unless s{^\s*(git-svn-id:)}{$1};
1269 my ($url, $rev, $uuid) = extract_metadata($_);
1270 if (defined $url && defined $rev) {
1271 next if $max{$url} and $max{$url} < $rev;
1272 if (my $gs = Git::SVN->find_by_url($url)) {
1273 my $c = $gs->rev_map_get($rev, $uuid);
1274 if ($c && $c eq $hash) {
1275 close $fh; # break the pipe
1276 return ($url, $rev, $uuid, $gs);
1277 } else {
1278 $max{$url} ||= $gs->rev_map_max;
1279 }
1280 }
1281 }
1282 }
1283 command_close_pipe($fh, $ctx);
1284 (undef, undef, undef, undef);
1285 }
1286
1287 sub read_commit_parents {
1288 my ($parents, $c) = @_;
1289 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1290 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1291 @{$parents->{$c}} = split(/ /, $p);
1292 }
1293
1294 sub linearize_history {
1295 my ($gs, $refs) = @_;
1296 my %parents;
1297 foreach my $c (@$refs) {
1298 read_commit_parents(\%parents, $c);
1299 }
1300
1301 my @linear_refs;
1302 my %skip = ();
1303 my $last_svn_commit = $gs->last_commit;
1304 foreach my $c (reverse @$refs) {
1305 next if $c eq $last_svn_commit;
1306 last if $skip{$c};
1307
1308 unshift @linear_refs, $c;
1309 $skip{$c} = 1;
1310
1311 # we only want the first parent to diff against for linear
1312 # history, we save the rest to inject when we finalize the
1313 # svn commit
1314 my $fp_a = verify_ref("$c~1");
1315 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1316 if (!$fp_a || !$fp_b) {
1317 die "Commit $c\n",
1318 "has no parent commit, and therefore ",
1319 "nothing to diff against.\n",
1320 "You should be working from a repository ",
1321 "originally created by git-svn\n";
1322 }
1323 if ($fp_a ne $fp_b) {
1324 die "$c~1 = $fp_a, however parsing commit $c ",
1325 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1326 }
1327
1328 foreach my $p (@{$parents{$c}}) {
1329 $skip{$p} = 1;
1330 }
1331 }
1332 (\@linear_refs, \%parents);
1333 }
1334
1335 sub find_file_type_and_diff_status {
1336 my ($path) = @_;
1337 return ('dir', '') if $path eq '';
1338
1339 my $diff_output =
1340 command_oneline(qw(diff --cached --name-status --), $path) || "";
1341 my $diff_status = (split(' ', $diff_output))[0] || "";
1342
1343 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1344
1345 return (undef, undef) if !$diff_status && !$ls_tree;
1346
1347 if ($diff_status eq "A") {
1348 return ("link", $diff_status) if -l $path;
1349 return ("dir", $diff_status) if -d $path;
1350 return ("file", $diff_status);
1351 }
1352
1353 my $mode = (split(' ', $ls_tree))[0] || "";
1354
1355 return ("link", $diff_status) if $mode eq "120000";
1356 return ("dir", $diff_status) if $mode eq "040000";
1357 return ("file", $diff_status);
1358 }
1359
1360 sub md5sum {
1361 my $arg = shift;
1362 my $ref = ref $arg;
1363 my $md5 = Digest::MD5->new();
1364 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
1365 $md5->addfile($arg) or croak $!;
1366 } elsif ($ref eq 'SCALAR') {
1367 $md5->add($$arg) or croak $!;
1368 } elsif (!$ref) {
1369 $md5->add($arg) or croak $!;
1370 } else {
1371 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1372 }
1373 return $md5->hexdigest();
1374 }
1375
1376 package Git::SVN;
1377 use strict;
1378 use warnings;
1379 use Fcntl qw/:DEFAULT :seek/;
1380 use constant rev_map_fmt => 'NH40';
1381 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1382 $_repack $_repack_flags $_use_svm_props $_head
1383 $_use_svnsync_props $no_reuse_existing $_minimize_url
1384 $_use_log_author $_add_author_from $_localtime/;
1385 use Carp qw/croak/;
1386 use File::Path qw/mkpath/;
1387 use File::Copy qw/copy/;
1388 use IPC::Open3;
1389
1390 my ($_gc_nr, $_gc_period);
1391
1392 # properties that we do not log:
1393 my %SKIP_PROP;
1394 BEGIN {
1395 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1396 svn:special svn:executable
1397 svn:entry:committed-rev
1398 svn:entry:last-author
1399 svn:entry:uuid
1400 svn:entry:committed-date/;
1401
1402 # some options are read globally, but can be overridden locally
1403 # per [svn-remote "..."] section. Command-line options will *NOT*
1404 # override options set in an [svn-remote "..."] section
1405 no strict 'refs';
1406 for my $option (qw/follow_parent no_metadata use_svm_props
1407 use_svnsync_props/) {
1408 my $key = $option;
1409 $key =~ tr/_//d;
1410 my $prop = "-$option";
1411 *$option = sub {
1412 my ($self) = @_;
1413 return $self->{$prop} if exists $self->{$prop};
1414 my $k = "svn-remote.$self->{repo_id}.$key";
1415 eval { command_oneline(qw/config --get/, $k) };
1416 if ($@) {
1417 $self->{$prop} = ${"Git::SVN::_$option"};
1418 } else {
1419 my $v = command_oneline(qw/config --bool/,$k);
1420 $self->{$prop} = $v eq 'false' ? 0 : 1;
1421 }
1422 return $self->{$prop};
1423 }
1424 }
1425 }
1426
1427
1428 my (%LOCKFILES, %INDEX_FILES);
1429 END {
1430 unlink keys %LOCKFILES if %LOCKFILES;
1431 unlink keys %INDEX_FILES if %INDEX_FILES;
1432 }
1433
1434 sub resolve_local_globs {
1435 my ($url, $fetch, $glob_spec) = @_;
1436 return unless defined $glob_spec;
1437 my $ref = $glob_spec->{ref};
1438 my $path = $glob_spec->{path};
1439 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
1440 next unless m#^refs/remotes/$ref->{regex}$#;
1441 my $p = $1;
1442 my $pathname = desanitize_refname($path->full_path($p));
1443 my $refname = desanitize_refname($ref->full_path($p));
1444 if (my $existing = $fetch->{$pathname}) {
1445 if ($existing ne $refname) {
1446 die "Refspec conflict:\n",
1447 "existing: refs/remotes/$existing\n",
1448 " globbed: refs/remotes/$refname\n";
1449 }
1450 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
1451 $u =~ s!^\Q$url\E(/|$)!! or die
1452 "refs/remotes/$refname: '$url' not found in '$u'\n";
1453 if ($pathname ne $u) {
1454 warn "W: Refspec glob conflict ",
1455 "(ref: refs/remotes/$refname):\n",
1456 "expected path: $pathname\n",
1457 " real path: $u\n",
1458 "Continuing ahead with $u\n";
1459 next;
1460 }
1461 } else {
1462 $fetch->{$pathname} = $refname;
1463 }
1464 }
1465 }
1466
1467 sub parse_revision_argument {
1468 my ($base, $head) = @_;
1469 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1470 return ($base, $head);
1471 }
1472 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1473 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1474 return ($head, $head) if ($::_revision eq 'HEAD');
1475 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1476 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1477 die "revision argument: $::_revision not understood by git-svn\n";
1478 }
1479
1480 sub fetch_all {
1481 my ($repo_id, $remotes) = @_;
1482 if (ref $repo_id) {
1483 my $gs = $repo_id;
1484 $repo_id = undef;
1485 $repo_id = $gs->{repo_id};
1486 }
1487 $remotes ||= read_all_remotes();
1488 my $remote = $remotes->{$repo_id} or
1489 die "[svn-remote \"$repo_id\"] unknown\n";
1490 my $fetch = $remote->{fetch};
1491 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1492 my (@gs, @globs);
1493 my $ra = Git::SVN::Ra->new($url);
1494 my $uuid = $ra->get_uuid;
1495 my $head = $ra->get_latest_revnum;
1496 my $base = defined $fetch ? $head : 0;
1497
1498 # read the max revs for wildcard expansion (branches/*, tags/*)
1499 foreach my $t (qw/branches tags/) {
1500 defined $remote->{$t} or next;
1501 push @globs, $remote->{$t};
1502 my $max_rev = eval { tmp_config(qw/--int --get/,
1503 "svn-remote.$repo_id.${t}-maxRev") };
1504 if (defined $max_rev && ($max_rev < $base)) {
1505 $base = $max_rev;
1506 } elsif (!defined $max_rev) {
1507 $base = 0;
1508 }
1509 }
1510
1511 if ($fetch) {
1512 foreach my $p (sort keys %$fetch) {
1513 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1514 my $lr = $gs->rev_map_max;
1515 if (defined $lr) {
1516 $base = $lr if ($lr < $base);
1517 }
1518 push @gs, $gs;
1519 }
1520 }
1521
1522 ($base, $head) = parse_revision_argument($base, $head);
1523 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1524 }
1525
1526 sub read_all_remotes {
1527 my $r = {};
1528 my $use_svm_props = eval { command_oneline(qw/config --bool
1529 svn.useSvmProps/) };
1530 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
1531 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1532 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*(.+)\s*$!) {
1533 my ($remote, $local_ref, $_remote_ref) = ($1, $2, $3);
1534 die("svn-remote.$remote: remote ref '$_remote_ref' "
1535 . "must start with 'refs/remotes/'\n")
1536 unless $_remote_ref =~ m{^refs/remotes/(.+)};
1537 my $remote_ref = $1;
1538 $local_ref =~ s{^/}{};
1539 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1540 $r->{$remote}->{svm} = {} if $use_svm_props;
1541 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
1542 $r->{$1}->{svm} = {};
1543 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1544 $r->{$1}->{url} = $2;
1545 } elsif (m!^(.+)\.(branches|tags)=
1546 (.*):refs/remotes/(.+)\s*$/!x) {
1547 my ($p, $g) = ($3, $4);
1548 my $rs = $r->{$1}->{$2} = {
1549 t => $2,
1550 remote => $1,
1551 path => Git::SVN::GlobSpec->new($p),
1552 ref => Git::SVN::GlobSpec->new($g) };
1553 if (length($rs->{ref}->{right}) != 0) {
1554 die "The '*' glob character must be the last ",
1555 "character of '$g'\n";
1556 }
1557 }
1558 }
1559
1560 map {
1561 if (defined $r->{$_}->{svm}) {
1562 my $svm;
1563 eval {
1564 my $section = "svn-remote.$_";
1565 $svm = {
1566 source => tmp_config('--get',
1567 "$section.svm-source"),
1568 replace => tmp_config('--get',
1569 "$section.svm-replace"),
1570 }
1571 };
1572 $r->{$_}->{svm} = $svm;
1573 }
1574 } keys %$r;
1575
1576 $r;
1577 }
1578
1579 sub init_vars {
1580 $_gc_nr = $_gc_period = 1000;
1581 if (defined $_repack || defined $_repack_flags) {
1582 warn "Repack options are obsolete; they have no effect.\n";
1583 }
1584 }
1585
1586 sub verify_remotes_sanity {
1587 return unless -d $ENV{GIT_DIR};
1588 my %seen;
1589 foreach (command(qw/config -l/)) {
1590 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1591 if ($seen{$1}) {
1592 die "Remote ref refs/remote/$1 is tracked by",
1593 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1594 "Please resolve this ambiguity in ",
1595 "your git configuration file before ",
1596 "continuing\n";
1597 }
1598 $seen{$1} = $_;
1599 }
1600 }
1601 }
1602
1603 sub find_existing_remote {
1604 my ($url, $remotes) = @_;
1605 return undef if $no_reuse_existing;
1606 my $existing;
1607 foreach my $repo_id (keys %$remotes) {
1608 my $u = $remotes->{$repo_id}->{url} or next;
1609 next if $u ne $url;
1610 $existing = $repo_id;
1611 last;
1612 }
1613 $existing;
1614 }
1615
1616 sub init_remote_config {
1617 my ($self, $url, $no_write) = @_;
1618 $url =~ s!/+$!!; # strip trailing slash
1619 my $r = read_all_remotes();
1620 my $existing = find_existing_remote($url, $r);
1621 if ($existing) {
1622 unless ($no_write) {
1623 print STDERR "Using existing ",
1624 "[svn-remote \"$existing\"]\n";
1625 }
1626 $self->{repo_id} = $existing;
1627 } elsif ($_minimize_url) {
1628 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1629 $existing = find_existing_remote($min_url, $r);
1630 if ($existing) {
1631 unless ($no_write) {
1632 print STDERR "Using existing ",
1633 "[svn-remote \"$existing\"]\n";
1634 }
1635 $self->{repo_id} = $existing;
1636 }
1637 if ($min_url ne $url) {
1638 unless ($no_write) {
1639 print STDERR "Using higher level of URL: ",
1640 "$url => $min_url\n";
1641 }
1642 my $old_path = $self->{path};
1643 $self->{path} = $url;
1644 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1645 if (length $old_path) {
1646 $self->{path} .= "/$old_path";
1647 }
1648 $url = $min_url;
1649 }
1650 }
1651 my $orig_url;
1652 if (!$existing) {
1653 # verify that we aren't overwriting anything:
1654 $orig_url = eval {
1655 command_oneline('config', '--get',
1656 "svn-remote.$self->{repo_id}.url")
1657 };
1658 if ($orig_url && ($orig_url ne $url)) {
1659 die "svn-remote.$self->{repo_id}.url already set: ",
1660 "$orig_url\nwanted to set to: $url\n";
1661 }
1662 }
1663 my ($xrepo_id, $xpath) = find_ref($self->refname);
1664 if (defined $xpath) {
1665 die "svn-remote.$xrepo_id.fetch already set to track ",
1666 "$xpath:refs/remotes/", $self->refname, "\n";
1667 }
1668 unless ($no_write) {
1669 command_noisy('config',
1670 "svn-remote.$self->{repo_id}.url", $url);
1671 $self->{path} =~ s{^/}{};
1672 command_noisy('config', '--add',
1673 "svn-remote.$self->{repo_id}.fetch",
1674 "$self->{path}:".$self->refname);
1675 }
1676 $self->{url} = $url;
1677 }
1678
1679 sub find_by_url { # repos_root and, path are optional
1680 my ($class, $full_url, $repos_root, $path) = @_;
1681
1682 return undef unless defined $full_url;
1683 remove_username($full_url);
1684 remove_username($repos_root) if defined $repos_root;
1685 my $remotes = read_all_remotes();
1686 if (defined $full_url && defined $repos_root && !defined $path) {
1687 $path = $full_url;
1688 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1689 }
1690 foreach my $repo_id (keys %$remotes) {
1691 my $u = $remotes->{$repo_id}->{url} or next;
1692 remove_username($u);
1693 next if defined $repos_root && $repos_root ne $u;
1694
1695 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1696 foreach (qw/branches tags/) {
1697 resolve_local_globs($u, $fetch,
1698 $remotes->{$repo_id}->{$_});
1699 }
1700 my $p = $path;
1701 my $rwr = rewrite_root({repo_id => $repo_id});
1702 my $svm = $remotes->{$repo_id}->{svm}
1703 if defined $remotes->{$repo_id}->{svm};
1704 unless (defined $p) {
1705 $p = $full_url;
1706 my $z = $u;
1707 my $prefix = '';
1708 if ($rwr) {
1709 $z = $rwr;
1710 remove_username($z);
1711 } elsif (defined $svm) {
1712 $z = $svm->{source};
1713 $prefix = $svm->{replace};
1714 $prefix =~ s#^\Q$u\E(?:/|$)##;
1715 $prefix =~ s#/$##;
1716 }
1717 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
1718 }
1719 foreach my $f (keys %$fetch) {
1720 next if $f ne $p;
1721 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1722 }
1723 }
1724 undef;
1725 }
1726
1727 sub init {
1728 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1729 my $self = _new($class, $repo_id, $ref_id, $path);
1730 if (defined $url) {
1731 $self->init_remote_config($url, $no_write);
1732 }
1733 $self;
1734 }
1735
1736 sub find_ref {
1737 my ($ref_id) = @_;
1738 foreach (command(qw/config -l/)) {
1739 next unless m!^svn-remote\.(.+)\.fetch=
1740 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1741 my ($repo_id, $path, $ref) = ($1, $2, $3);
1742 if ($ref eq $ref_id) {
1743 $path = '' if ($path =~ m#^\./?#);
1744 return ($repo_id, $path);
1745 }
1746 }
1747 (undef, undef, undef);
1748 }
1749
1750 sub new {
1751 my ($class, $ref_id, $repo_id, $path) = @_;
1752 if (defined $ref_id && !defined $repo_id && !defined $path) {
1753 ($repo_id, $path) = find_ref($ref_id);
1754 if (!defined $repo_id) {
1755 die "Could not find a \"svn-remote.*.fetch\" key ",
1756 "in the repository configuration matching: ",
1757 "refs/remotes/$ref_id\n";
1758 }
1759 }
1760 my $self = _new($class, $repo_id, $ref_id, $path);
1761 if (!defined $self->{path} || !length $self->{path}) {
1762 my $fetch = command_oneline('config', '--get',
1763 "svn-remote.$repo_id.fetch",
1764 ":refs/remotes/$ref_id\$") or
1765 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1766 "\":refs/remotes/$ref_id\$\" in config\n";
1767 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1768 }
1769 $self->{url} = command_oneline('config', '--get',
1770 "svn-remote.$repo_id.url") or
1771 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1772 $self->rebuild;
1773 $self;
1774 }
1775
1776 sub refname {
1777 my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
1778
1779 # It cannot end with a slash /, we'll throw up on this because
1780 # SVN can't have directories with a slash in their name, either:
1781 if ($refname =~ m{/$}) {
1782 die "ref: '$refname' ends with a trailing slash, this is ",
1783 "not permitted by git nor Subversion\n";
1784 }
1785
1786 # It cannot have ASCII control character space, tilde ~, caret ^,
1787 # colon :, question-mark ?, asterisk *, space, or open bracket [
1788 # anywhere.
1789 #
1790 # Additionally, % must be escaped because it is used for escaping
1791 # and we want our escaped refname to be reversible
1792 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
1793
1794 # no slash-separated component can begin with a dot .
1795 # /.* becomes /%2E*
1796 $refname =~ s{/\.}{/%2E}g;
1797
1798 # It cannot have two consecutive dots .. anywhere
1799 # .. becomes %2E%2E
1800 $refname =~ s{\.\.}{%2E%2E}g;
1801
1802 return $refname;
1803 }
1804
1805 sub desanitize_refname {
1806 my ($refname) = @_;
1807 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
1808 return $refname;
1809 }
1810
1811 sub svm_uuid {
1812 my ($self) = @_;
1813 return $self->{svm}->{uuid} if $self->svm;
1814 $self->ra;
1815 unless ($self->{svm}) {
1816 die "SVM UUID not cached, and reading remotely failed\n";
1817 }
1818 $self->{svm}->{uuid};
1819 }
1820
1821 sub svm {
1822 my ($self) = @_;
1823 return $self->{svm} if $self->{svm};
1824 my $svm;
1825 # see if we have it in our config, first:
1826 eval {
1827 my $section = "svn-remote.$self->{repo_id}";
1828 $svm = {
1829 source => tmp_config('--get', "$section.svm-source"),
1830 uuid => tmp_config('--get', "$section.svm-uuid"),
1831 replace => tmp_config('--get', "$section.svm-replace"),
1832 }
1833 };
1834 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1835 $self->{svm} = $svm;
1836 }
1837 $self->{svm};
1838 }
1839
1840 sub _set_svm_vars {
1841 my ($self, $ra) = @_;
1842 return $ra if $self->svm;
1843
1844 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1845 "(svm:source, svm:uuid) ",
1846 "from the following URLs:\n" );
1847 sub read_svm_props {
1848 my ($self, $ra, $path, $r) = @_;
1849 my $props = ($ra->get_dir($path, $r))[2];
1850 my $src = $props->{'svm:source'};
1851 my $uuid = $props->{'svm:uuid'};
1852 return undef if (!$src || !$uuid);
1853
1854 chomp($src, $uuid);
1855
1856 $uuid =~ m{^[0-9a-f\-]{30,}$}
1857 or die "doesn't look right - svm:uuid is '$uuid'\n";
1858
1859 # the '!' is used to mark the repos_root!/relative/path
1860 $src =~ s{/?!/?}{/};
1861 $src =~ s{/+$}{}; # no trailing slashes please
1862 # username is of no interest
1863 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1864
1865 my $replace = $ra->{url};
1866 $replace .= "/$path" if length $path;
1867
1868 my $section = "svn-remote.$self->{repo_id}";
1869 tmp_config("$section.svm-source", $src);
1870 tmp_config("$section.svm-replace", $replace);
1871 tmp_config("$section.svm-uuid", $uuid);
1872 $self->{svm} = {
1873 source => $src,
1874 uuid => $uuid,
1875 replace => $replace
1876 };
1877 }
1878
1879 my $r = $ra->get_latest_revnum;
1880 my $path = $self->{path};
1881 my %tried;
1882 while (length $path) {
1883 unless ($tried{"$self->{url}/$path"}) {
1884 return $ra if $self->read_svm_props($ra, $path, $r);
1885 $tried{"$self->{url}/$path"} = 1;
1886 }
1887 $path =~ s#/?[^/]+$##;
1888 }
1889 die "Path: '$path' should be ''\n" if $path ne '';
1890 return $ra if $self->read_svm_props($ra, $path, $r);
1891 $tried{"$self->{url}/$path"} = 1;
1892
1893 if ($ra->{repos_root} eq $self->{url}) {
1894 die @err, (map { " $_\n" } keys %tried), "\n";
1895 }
1896
1897 # nope, make sure we're connected to the repository root:
1898 my $ok;
1899 my @tried_b;
1900 $path = $ra->{svn_path};
1901 $ra = Git::SVN::Ra->new($ra->{repos_root});
1902 while (length $path) {
1903 unless ($tried{"$ra->{url}/$path"}) {
1904 $ok = $self->read_svm_props($ra, $path, $r);
1905 last if $ok;
1906 $tried{"$ra->{url}/$path"} = 1;
1907 }
1908 $path =~ s#/?[^/]+$##;
1909 }
1910 die "Path: '$path' should be ''\n" if $path ne '';
1911 $ok ||= $self->read_svm_props($ra, $path, $r);
1912 $tried{"$ra->{url}/$path"} = 1;
1913 if (!$ok) {
1914 die @err, (map { " $_\n" } keys %tried), "\n";
1915 }
1916 Git::SVN::Ra->new($self->{url});
1917 }
1918
1919 sub svnsync {
1920 my ($self) = @_;
1921 return $self->{svnsync} if $self->{svnsync};
1922
1923 if ($self->no_metadata) {
1924 die "Can't have both 'noMetadata' and ",
1925 "'useSvnsyncProps' options set!\n";
1926 }
1927 if ($self->rewrite_root) {
1928 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1929 "options set!\n";
1930 }
1931
1932 my $svnsync;
1933 # see if we have it in our config, first:
1934 eval {
1935 my $section = "svn-remote.$self->{repo_id}";
1936
1937 my $url = tmp_config('--get', "$section.svnsync-url");
1938 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1939 die "doesn't look right - svn:sync-from-url is '$url'\n";
1940
1941 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
1942 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1943 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1944
1945 $svnsync = { url => $url, uuid => $uuid }
1946 };
1947 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1948 return $self->{svnsync} = $svnsync;
1949 }
1950
1951 my $err = "useSvnsyncProps set, but failed to read " .
1952 "svnsync property: svn:sync-from-";
1953 my $rp = $self->ra->rev_proplist(0);
1954
1955 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1956 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1957 die "doesn't look right - svn:sync-from-url is '$url'\n";
1958
1959 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1960 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1961 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1962
1963 my $section = "svn-remote.$self->{repo_id}";
1964 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1965 tmp_config('--add', "$section.svnsync-url", $url);
1966 return $self->{svnsync} = { url => $url, uuid => $uuid };
1967 }
1968
1969 # this allows us to memoize our SVN::Ra UUID locally and avoid a
1970 # remote lookup (useful for 'git svn log').
1971 sub ra_uuid {
1972 my ($self) = @_;
1973 unless ($self->{ra_uuid}) {
1974 my $key = "svn-remote.$self->{repo_id}.uuid";
1975 my $uuid = eval { tmp_config('--get', $key) };
1976 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1977 $self->{ra_uuid} = $uuid;
1978 } else {
1979 die "ra_uuid called without URL\n" unless $self->{url};
1980 $self->{ra_uuid} = $self->ra->get_uuid;
1981 tmp_config('--add', $key, $self->{ra_uuid});
1982 }
1983 }
1984 $self->{ra_uuid};
1985 }
1986
1987 sub _set_repos_root {
1988 my ($self, $repos_root) = @_;
1989 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1990 $repos_root ||= $self->ra->{repos_root};
1991 tmp_config($k, $repos_root);
1992 $repos_root;
1993 }
1994
1995 sub repos_root {
1996 my ($self) = @_;
1997 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1998 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
1999 }
2000
2001 sub ra {
2002 my ($self) = shift;
2003 my $ra = Git::SVN::Ra->new($self->{url});
2004 $self->_set_repos_root($ra->{repos_root});
2005 if ($self->use_svm_props && !$self->{svm}) {
2006 if ($self->no_metadata) {
2007 die "Can't have both 'noMetadata' and ",
2008 "'useSvmProps' options set!\n";
2009 } elsif ($self->use_svnsync_props) {
2010 die "Can't have both 'useSvnsyncProps' and ",
2011 "'useSvmProps' options set!\n";
2012 }
2013 $ra = $self->_set_svm_vars($ra);
2014 $self->{-want_revprops} = 1;
2015 }
2016 $ra;
2017 }
2018
2019 sub rel_path {
2020 my ($self) = @_;
2021 my $repos_root = $self->ra->{repos_root};
2022 return $self->{path} if ($self->{url} eq $repos_root);
2023 my $url = $self->{url} .
2024 (length $self->{path} ? "/$self->{path}" : $self->{path});
2025 $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
2026 $url;
2027 }
2028
2029 # prop_walk(PATH, REV, SUB)
2030 # -------------------------
2031 # Recursively traverse PATH at revision REV and invoke SUB for each
2032 # directory that contains a SVN property. SUB will be invoked as
2033 # follows: &SUB(gs, path, props); where `gs' is this instance of
2034 # Git::SVN, `path' the path to the directory where the properties
2035 # `props' were found. The `path' will be relative to point of checkout,
2036 # that is, if url://repo/trunk is the current Git branch, and that
2037 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
2038 # as `path' (note the trailing `/').
2039 sub prop_walk {
2040 my ($self, $path, $rev, $sub) = @_;
2041
2042 $path =~ s#^/##;
2043 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
2044 $path =~ s#^/*#/#g;
2045 my $p = $path;
2046 # Strip the irrelevant part of the path.
2047 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
2048 # Ensure the path is terminated by a `/'.
2049 $p =~ s#/*$#/#;
2050
2051 # The properties contain all the internal SVN stuff nobody
2052 # (usually) cares about.
2053 my $interesting_props = 0;
2054 foreach (keys %{$props}) {
2055 # If it doesn't start with `svn:', it must be a
2056 # user-defined property.
2057 ++$interesting_props and next if $_ !~ /^svn:/;
2058 # FIXME: Fragile, if SVN adds new public properties,
2059 # this needs to be updated.
2060 ++$interesting_props if /^svn:(?:ignore|keywords|executable
2061 |eol-style|mime-type
2062 |externals|needs-lock)$/x;
2063 }
2064 &$sub($self, $p, $props) if $interesting_props;
2065
2066 foreach (sort keys %$dirent) {
2067 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
2068 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
2069 }
2070 }
2071
2072 sub last_rev { ($_[0]->last_rev_commit)[0] }
2073 sub last_commit { ($_[0]->last_rev_commit)[1] }
2074
2075 # returns the newest SVN revision number and newest commit SHA1
2076 sub last_rev_commit {
2077 my ($self) = @_;
2078 if (defined $self->{last_rev} && defined $self->{last_commit}) {
2079 return ($self->{last_rev}, $self->{last_commit});
2080 }
2081 my $c = ::verify_ref($self->refname.'^0');
2082 if ($c && !$self->use_svm_props && !$self->no_metadata) {
2083 my $rev = (::cmt_metadata($c))[1];
2084 if (defined $rev) {
2085 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
2086 return ($rev, $c);
2087 }
2088 }
2089 my $map_path = $self->map_path;
2090 unless (-e $map_path) {
2091 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
2092 return (undef, undef);
2093 }
2094 my ($rev, $commit) = $self->rev_map_max(1);
2095 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
2096 return ($rev, $commit);
2097 }
2098
2099 sub get_fetch_range {
2100 my ($self, $min, $max) = @_;
2101 $max ||= $self->ra->get_latest_revnum;
2102 $min ||= $self->rev_map_max;
2103 (++$min, $max);
2104 }
2105
2106 sub tmp_config {
2107 my (@args) = @_;
2108 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
2109 my $config = "$ENV{GIT_DIR}/svn/.metadata";
2110 if (! -f $config && -f $old_def_config) {
2111 rename $old_def_config, $config or
2112 die "Failed rename $old_def_config => $config: $!\n";
2113 }
2114 my $old_config = $ENV{GIT_CONFIG};
2115 $ENV{GIT_CONFIG} = $config;
2116 $@ = undef;
2117 my @ret = eval {
2118 unless (-f $config) {
2119 mkfile($config);
2120 open my $fh, '>', $config or
2121 die "Can't open $config: $!\n";
2122 print $fh "; This file is used internally by ",
2123 "git-svn\n" or die
2124 "Couldn't write to $config: $!\n";
2125 print $fh "; You should not have to edit it\n" or
2126 die "Couldn't write to $config: $!\n";
2127 close $fh or die "Couldn't close $config: $!\n";
2128 }
2129 command('config', @args);
2130 };
2131 my $err = $@;
2132 if (defined $old_config) {
2133 $ENV{GIT_CONFIG} = $old_config;
2134 } else {
2135 delete $ENV{GIT_CONFIG};
2136 }
2137 die $err if $err;
2138 wantarray ? @ret : $ret[0];
2139 }
2140
2141 sub tmp_index_do {
2142 my ($self, $sub) = @_;
2143 my $old_index = $ENV{GIT_INDEX_FILE};
2144 $ENV{GIT_INDEX_FILE} = $self->{index};
2145 $@ = undef;
2146 my @ret = eval {
2147 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2148 mkpath([$dir]) unless -d $dir;
2149 &$sub;
2150 };
2151 my $err = $@;
2152 if (defined $old_index) {
2153 $ENV{GIT_INDEX_FILE} = $old_index;
2154 } else {
2155 delete $ENV{GIT_INDEX_FILE};
2156 }
2157 die $err if $err;
2158 wantarray ? @ret : $ret[0];
2159 }
2160
2161 sub assert_index_clean {
2162 my ($self, $treeish) = @_;
2163
2164 $self->tmp_index_do(sub {
2165 command_noisy('read-tree', $treeish) unless -e $self->{index};
2166 my $x = command_oneline('write-tree');
2167 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2168 /^tree ($::sha1)/mo);
2169 return if $y eq $x;
2170
2171 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2172 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2173 command_noisy('read-tree', $treeish);
2174 $x = command_oneline('write-tree');
2175 if ($y ne $x) {
2176 ::fatal "trees ($treeish) $y != $x\n",
2177 "Something is seriously wrong...";
2178 }
2179 });
2180 }
2181
2182 sub get_commit_parents {
2183 my ($self, $log_entry) = @_;
2184 my (%seen, @ret, @tmp);
2185 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2186 if (my $ip = $self->{inject_parents}) {
2187 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2188 push @tmp, $commit;
2189 }
2190 }
2191 if (my $cur = ::verify_ref($self->refname.'^0')) {
2192 push @tmp, $cur;
2193 }
2194 if (my $ipd = $self->{inject_parents_dcommit}) {
2195 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2196 push @tmp, @$commit;
2197 }
2198 }
2199 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2200 while (my $p = shift @tmp) {
2201 next if $seen{$p};
2202 $seen{$p} = 1;
2203 push @ret, $p;
2204 # MAXPARENT is defined to 16 in commit-tree.c:
2205 last if @ret >= 16;
2206 }
2207 if (@tmp) {
2208 die "r$log_entry->{revision}: No room for parents:\n\t",
2209 join("\n\t", @tmp), "\n";
2210 }
2211 @ret;
2212 }
2213
2214 sub rewrite_root {
2215 my ($self) = @_;
2216 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2217 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2218 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2219 if ($rwr) {
2220 $rwr =~ s#/+$##;
2221 if ($rwr !~ m#^[a-z\+]+://#) {
2222 die "$rwr is not a valid URL (key: $k)\n";
2223 }
2224 }
2225 $self->{-rewrite_root} = $rwr;
2226 }
2227
2228 sub metadata_url {
2229 my ($self) = @_;
2230 ($self->rewrite_root || $self->{url}) .
2231 (length $self->{path} ? '/' . $self->{path} : '');
2232 }
2233
2234 sub full_url {
2235 my ($self) = @_;
2236 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2237 }
2238
2239
2240 sub set_commit_header_env {
2241 my ($log_entry) = @_;
2242 my %env;
2243 foreach my $ned (qw/NAME EMAIL DATE/) {
2244 foreach my $ac (qw/AUTHOR COMMITTER/) {
2245 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2246 }
2247 }
2248
2249 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2250 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2251 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2252
2253 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2254 ? $log_entry->{commit_name}
2255 : $log_entry->{name};
2256 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2257 ? $log_entry->{commit_email}
2258 : $log_entry->{email};
2259 \%env;
2260 }
2261
2262 sub restore_commit_header_env {
2263 my ($env) = @_;
2264 foreach my $ned (qw/NAME EMAIL DATE/) {
2265 foreach my $ac (qw/AUTHOR COMMITTER/) {
2266 my $k = "GIT_${ac}_${ned}";
2267 if (defined $env->{$k}) {
2268 $ENV{$k} = $env->{$k};
2269 } else {
2270 delete $ENV{$k};
2271 }
2272 }
2273 }
2274 }
2275
2276 sub gc {
2277 command_noisy('gc', '--auto');
2278 };
2279
2280 sub do_git_commit {
2281 my ($self, $log_entry) = @_;
2282 my $lr = $self->last_rev;
2283 if (defined $lr && $lr >= $log_entry->{revision}) {
2284 die "Last fetched revision of ", $self->refname,
2285 " was r$lr, but we are about to fetch: ",
2286 "r$log_entry->{revision}!\n";
2287 }
2288 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2289 croak "$log_entry->{revision} = $c already exists! ",
2290 "Why are we refetching it?\n";
2291 }
2292 my $old_env = set_commit_header_env($log_entry);
2293 my $tree = $log_entry->{tree};
2294 if (!defined $tree) {
2295 $tree = $self->tmp_index_do(sub {
2296 command_oneline('write-tree') });
2297 }
2298 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2299
2300 my @exec = ('git', 'commit-tree', $tree);
2301 foreach ($self->get_commit_parents($log_entry)) {
2302 push @exec, '-p', $_;
2303 }
2304 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2305 or croak $!;
2306 binmode $msg_fh;
2307
2308 # we always get UTF-8 from SVN, but we may want our commits in
2309 # a different encoding.
2310 if (my $enc = Git::config('i18n.commitencoding')) {
2311 require Encode;
2312 Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
2313 }
2314 print $msg_fh $log_entry->{log} or croak $!;
2315 restore_commit_header_env($old_env);
2316 unless ($self->no_metadata) {
2317 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2318 or croak $!;
2319 }
2320 $msg_fh->flush == 0 or croak $!;
2321 close $msg_fh or croak $!;
2322 chomp(my $commit = do { local $/; <$out_fh> });
2323 close $out_fh or croak $!;
2324 waitpid $pid, 0;
2325 croak $? if $?;
2326 if ($commit !~ /^$::sha1$/o) {
2327 die "Failed to commit, invalid sha1: $commit\n";
2328 }
2329
2330 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2331
2332 $self->{last_rev} = $log_entry->{revision};
2333 $self->{last_commit} = $commit;
2334 print "r$log_entry->{revision}";
2335 if (defined $log_entry->{svm_revision}) {
2336 print " (\@$log_entry->{svm_revision})";
2337 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2338 0, $self->svm_uuid);
2339 }
2340 print " = $commit ($self->{ref_id})\n";
2341 if (--$_gc_nr == 0) {
2342 $_gc_nr = $_gc_period;
2343 gc();
2344 }
2345 return $commit;
2346 }
2347
2348 sub match_paths {
2349 my ($self, $paths, $r) = @_;
2350 return 1 if $self->{path} eq '';
2351 if (my $path = $paths->{"/$self->{path}"}) {
2352 return ($path->{action} eq 'D') ? 0 : 1;
2353 }
2354 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2355 if (grep /$self->{path_regex}/, keys %$paths) {
2356 return 1;
2357 }
2358 my $c = '';
2359 foreach (split m#/#, $self->{path}) {
2360 $c .= "/$_";
2361 next unless ($paths->{$c} &&
2362 ($paths->{$c}->{action} =~ /^[AR]$/));
2363 if ($self->ra->check_path($self->{path}, $r) ==
2364 $SVN::Node::dir) {
2365 return 1;
2366 }
2367 }
2368 return 0;
2369 }
2370
2371 sub find_parent_branch {
2372 my ($self, $paths, $rev) = @_;
2373 return undef unless $self->follow_parent;
2374 unless (defined $paths) {
2375 my $err_handler = $SVN::Error::handler;
2376 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2377 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
2378 $paths =
2379 Git::SVN::Ra::dup_changed_paths($_[0]) });
2380 $SVN::Error::handler = $err_handler;
2381 }
2382 return undef unless defined $paths;
2383
2384 # look for a parent from another branch:
2385 my @b_path_components = split m#/#, $self->rel_path;
2386 my @a_path_components;
2387 my $i;
2388 while (@b_path_components) {
2389 $i = $paths->{'/'.join('/', @b_path_components)};
2390 last if $i && defined $i->{copyfrom_path};
2391 unshift(@a_path_components, pop(@b_path_components));
2392 }
2393 return undef unless defined $i && defined $i->{copyfrom_path};
2394 my $branch_from = $i->{copyfrom_path};
2395 if (@a_path_components) {
2396 print STDERR "branch_from: $branch_from => ";
2397 $branch_from .= '/'.join('/', @a_path_components);
2398 print STDERR $branch_from, "\n";
2399 }
2400 my $r = $i->{copyfrom_rev};
2401 my $repos_root = $self->ra->{repos_root};
2402 my $url = $self->ra->{url};
2403 my $new_url = $repos_root . $branch_from;
2404 print STDERR "Found possible branch point: ",
2405 "$new_url => ", $self->full_url, ", $r\n";
2406 $branch_from =~ s#^/##;
2407 my $gs = $self->other_gs($new_url, $url, $repos_root,
2408 $branch_from, $r, $self->{ref_id});
2409 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2410 {
2411 my ($base, $head);
2412 if (!defined $r0 || !defined $parent) {
2413 ($base, $head) = parse_revision_argument(0, $r);
2414 } else {
2415 if ($r0 < $r) {
2416 $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
2417 0, 1, sub { $base = $_[1] - 1 });
2418 }
2419 }
2420 if (defined $base && $base <= $r) {
2421 $gs->fetch($base, $r);
2422 }
2423 ($r0, $parent) = $gs->find_rev_before($r, 1);
2424 }
2425 if (defined $r0 && defined $parent) {
2426 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
2427 my $ed;
2428 if ($self->ra->can_do_switch) {
2429 $self->assert_index_clean($parent);
2430 print STDERR "Following parent with do_switch\n";
2431 # do_switch works with svn/trunk >= r22312, but that
2432 # is not included with SVN 1.4.3 (the latest version
2433 # at the moment), so we can't rely on it
2434 $self->{last_rev} = $r0;
2435 $self->{last_commit} = $parent;
2436 $ed = SVN::Git::Fetcher->new($self, $gs->{path});
2437 $gs->ra->gs_do_switch($r0, $rev, $gs,
2438 $self->full_url, $ed)
2439 or die "SVN connection failed somewhere...\n";
2440 } elsif ($self->ra->trees_match($new_url, $r0,
2441 $self->full_url, $rev)) {
2442 print STDERR "Trees match:\n",
2443 " $new_url\@$r0\n",
2444 " ${\$self->full_url}\@$rev\n",
2445 "Following parent with no changes\n";
2446 $self->tmp_index_do(sub {
2447 command_noisy('read-tree', $parent);
2448 });
2449 $self->{last_commit} = $parent;
2450 } else {
2451 print STDERR "Following parent with do_update\n";
2452 $ed = SVN::Git::Fetcher->new($self);
2453 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2454 or die "SVN connection failed somewhere...\n";
2455 }
2456 print STDERR "Successfully followed parent\n";
2457 return $self->make_log_entry($rev, [$parent], $ed);
2458 }
2459 return undef;
2460 }
2461
2462 sub do_fetch {
2463 my ($self, $paths, $rev) = @_;
2464 my $ed;
2465 my ($last_rev, @parents);
2466 if (my $lc = $self->last_commit) {
2467 # we can have a branch that was deleted, then re-added
2468 # under the same name but copied from another path, in
2469 # which case we'll have multiple parents (we don't
2470 # want to break the original ref, nor lose copypath info):
2471 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2472 push @{$log_entry->{parents}}, $lc;
2473 return $log_entry;
2474 }
2475 $ed = SVN::Git::Fetcher->new($self);
2476 $last_rev = $self->{last_rev};
2477 $ed->{c} = $lc;
2478 @parents = ($lc);
2479 } else {
2480 $last_rev = $rev;
2481 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2482 return $log_entry;
2483 }
2484 $ed = SVN::Git::Fetcher->new($self);
2485 }
2486 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2487 die "SVN connection failed somewhere...\n";
2488 }
2489 $self->make_log_entry($rev, \@parents, $ed);
2490 }
2491
2492 sub get_untracked {
2493 my ($self, $ed) = @_;
2494 my @out;
2495 my $h = $ed->{empty};
2496 foreach (sort keys %$h) {
2497 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2498 push @out, " $act: " . uri_encode($_);
2499 warn "W: $act: $_\n";
2500 }
2501 foreach my $t (qw/dir_prop file_prop/) {
2502 $h = $ed->{$t} or next;
2503 foreach my $path (sort keys %$h) {
2504 my $ppath = $path eq '' ? '.' : $path;
2505 foreach my $prop (sort keys %{$h->{$path}}) {
2506 next if $SKIP_PROP{$prop};
2507 my $v = $h->{$path}->{$prop};
2508 my $t_ppath_prop = "$t: " .
2509 uri_encode($ppath) . ' ' .
2510 uri_encode($prop);
2511 if (defined $v) {
2512 push @out, " +$t_ppath_prop " .
2513 uri_encode($v);
2514 } else {
2515 push @out, " -$t_ppath_prop";
2516 }
2517 }
2518 }
2519 }
2520 foreach my $t (qw/absent_file absent_directory/) {
2521 $h = $ed->{$t} or next;
2522 foreach my $parent (sort keys %$h) {
2523 foreach my $path (sort @{$h->{$parent}}) {
2524 push @out, " $t: " .
2525 uri_encode("$parent/$path");
2526 warn "W: $t: $parent/$path ",
2527 "Insufficient permissions?\n";
2528 }
2529 }
2530 }
2531 \@out;
2532 }
2533
2534 # parse_svn_date(DATE)
2535 # --------------------
2536 # Given a date (in UTC) from Subversion, return a string in the format
2537 # "<TZ Offset> <local date/time>" that Git will use.
2538 #
2539 # By default the parsed date will be in UTC; if $Git::SVN::_localtime
2540 # is true we'll convert it to the local timezone instead.
2541 sub parse_svn_date {
2542 my $date = shift || return '+0000 1970-01-01 00:00:00';
2543 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2544 (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
2545 croak "Unable to parse date: $date\n";
2546 my $parsed_date; # Set next.
2547
2548 if ($Git::SVN::_localtime) {
2549 # Translate the Subversion datetime to an epoch time.
2550 # Begin by switching ourselves to $date's timezone, UTC.
2551 my $old_env_TZ = $ENV{TZ};
2552 $ENV{TZ} = 'UTC';
2553
2554 my $epoch_in_UTC =
2555 POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
2556
2557 # Determine our local timezone (including DST) at the
2558 # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
2559 # value of TZ, if any, at the time we were run.
2560 if (defined $Git::SVN::Log::TZ) {
2561 $ENV{TZ} = $Git::SVN::Log::TZ;
2562 } else {
2563 delete $ENV{TZ};
2564 }
2565
2566 my $our_TZ =
2567 POSIX::strftime('%Z', $S, $M, $H, $d, $m - 1, $Y - 1900);
2568
2569 # This converts $epoch_in_UTC into our local timezone.
2570 my ($sec, $min, $hour, $mday, $mon, $year,
2571 $wday, $yday, $isdst) = localtime($epoch_in_UTC);
2572
2573 $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
2574 $our_TZ, $year + 1900, $mon + 1,
2575 $mday, $hour, $min, $sec);
2576
2577 # Reset us to the timezone in effect when we entered
2578 # this routine.
2579 if (defined $old_env_TZ) {
2580 $ENV{TZ} = $old_env_TZ;
2581 } else {
2582 delete $ENV{TZ};
2583 }
2584 } else {
2585 $parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
2586 }
2587
2588 return $parsed_date;
2589 }
2590
2591 sub other_gs {
2592 my ($self, $new_url, $url, $repos_root,
2593 $branch_from, $r, $old_ref_id) = @_;
2594 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
2595 unless ($gs) {
2596 my $ref_id = $old_ref_id;
2597 $ref_id =~ s/\@\d+$//;
2598 $ref_id .= "\@$r";
2599 # just grow a tail if we're not unique enough :x
2600 $ref_id .= '-' while find_ref($ref_id);
2601 print STDERR "Initializing parent: $ref_id\n";
2602 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2603 if ($u =~ s#^\Q$url\E(/|$)##) {
2604 $p = $u;
2605 $u = $url;
2606 $repo_id = $self->{repo_id};
2607 }
2608 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2609 }
2610 $gs
2611 }
2612
2613 sub check_author {
2614 my ($author) = @_;
2615 if (!defined $author || length $author == 0) {
2616 $author = '(no author)';
2617 } elsif (defined $::_authors && ! defined $::users{$author}) {
2618 die "Author: $author not defined in $::_authors file\n";
2619 }
2620 $author;
2621 }
2622
2623 sub make_log_entry {
2624 my ($self, $rev, $parents, $ed) = @_;
2625 my $untracked = $self->get_untracked($ed);
2626
2627 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
2628 print $un "r$rev\n" or croak $!;
2629 print $un $_, "\n" foreach @$untracked;
2630 my %log_entry = ( parents => $parents || [], revision => $rev,
2631 log => '');
2632
2633 my $headrev;
2634 my $logged = delete $self->{logged_rev_props};
2635 if (!$logged || $self->{-want_revprops}) {
2636 my $rp = $self->ra->rev_proplist($rev);
2637 foreach (sort keys %$rp) {
2638 my $v = $rp->{$_};
2639 if (/^svn:(author|date|log)$/) {
2640 $log_entry{$1} = $v;
2641 } elsif ($_ eq 'svm:headrev') {
2642 $headrev = $v;
2643 } else {
2644 print $un " rev_prop: ", uri_encode($_), ' ',
2645 uri_encode($v), "\n";
2646 }
2647 }
2648 } else {
2649 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
2650 }
2651 close $un or croak $!;
2652
2653 $log_entry{date} = parse_svn_date($log_entry{date});
2654 $log_entry{log} .= "\n";
2655 my $author = $log_entry{author} = check_author($log_entry{author});
2656 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
2657 : ($author, undef);
2658
2659 my ($commit_name, $commit_email) = ($name, $email);
2660 if ($_use_log_author) {
2661 my $name_field;
2662 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
2663 $name_field = $1;
2664 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
2665 $name_field = $1;
2666 }
2667 if (!defined $name_field) {
2668 if (!defined $email) {
2669 $email = $name;
2670 }
2671 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
2672 ($name, $email) = ($1, $2);
2673 } elsif ($name_field =~ /(.*)@/) {
2674 ($name, $email) = ($1, $name_field);
2675 } else {
2676 ($name, $email) = ($name_field, $name_field);
2677 }
2678 }
2679 if (defined $headrev && $self->use_svm_props) {
2680 if ($self->rewrite_root) {
2681 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
2682 "options set!\n";
2683 }
2684 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
2685 # we don't want "SVM: initializing mirror for junk" ...
2686 return undef if $r == 0;
2687 my $svm = $self->svm;
2688 if ($uuid ne $svm->{uuid}) {
2689 die "UUID mismatch on SVM path:\n",
2690 "expected: $svm->{uuid}\n",
2691 " got: $uuid\n";
2692 }
2693 my $full_url = $self->full_url;
2694 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
2695 die "Failed to replace '$svm->{replace}' with ",
2696 "'$svm->{source}' in $full_url\n";
2697 # throw away username for storing in records
2698 remove_username($full_url);
2699 $log_entry{metadata} = "$full_url\@$r $uuid";
2700 $log_entry{svm_revision} = $r;
2701 $email ||= "$author\@$uuid";
2702 $commit_email ||= "$author\@$uuid";
2703 } elsif ($self->use_svnsync_props) {
2704 my $full_url = $self->svnsync->{url};
2705 $full_url .= "/$self->{path}" if length $self->{path};
2706 remove_username($full_url);
2707 my $uuid = $self->svnsync->{uuid};
2708 $log_entry{metadata} = "$full_url\@$rev $uuid";
2709 $email ||= "$author\@$uuid";
2710 $commit_email ||= "$author\@$uuid";
2711 } else {
2712 my $url = $self->metadata_url;
2713 remove_username($url);
2714 $log_entry{metadata} = "$url\@$rev " .
2715 $self->ra->get_uuid;
2716 $email ||= "$author\@" . $self->ra->get_uuid;
2717 $commit_email ||= "$author\@" . $self->ra->get_uuid;
2718 }
2719 $log_entry{name} = $name;
2720 $log_entry{email} = $email;
2721 $log_entry{commit_name} = $commit_name;
2722 $log_entry{commit_email} = $commit_email;
2723 \%log_entry;
2724 }
2725
2726 sub fetch {
2727 my ($self, $min_rev, $max_rev, @parents) = @_;
2728 my ($last_rev, $last_commit) = $self->last_rev_commit;
2729 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
2730 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
2731 }
2732
2733 sub set_tree_cb {
2734 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2735 $self->{inject_parents} = { $rev => $tree };
2736 $self->fetch(undef, undef);
2737 }
2738
2739 sub set_tree {
2740 my ($self, $tree) = (shift, shift);
2741 my $log_entry = ::get_commit_entry($tree);
2742 unless ($self->{last_rev}) {
2743 ::fatal("Must have an existing revision to commit");
2744 }
2745 my %ed_opts = ( r => $self->{last_rev},
2746 log => $log_entry->{log},
2747 ra => $self->ra,
2748 tree_a => $self->{last_commit},
2749 tree_b => $tree,
2750 editor_cb => sub {
2751 $self->set_tree_cb($log_entry, $tree, @_) },
2752 svn_path => $self->{path} );
2753 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
2754 print "No changes\nr$self->{last_rev} = $tree\n";
2755 }
2756 }
2757
2758 sub rebuild_from_rev_db {
2759 my ($self, $path) = @_;
2760 my $r = -1;
2761 open my $fh, '<', $path or croak "open: $!";
2762 binmode $fh or croak "binmode: $!";
2763 while (<$fh>) {
2764 length($_) == 41 or croak "inconsistent size in ($_) != 41";
2765 chomp($_);
2766 ++$r;
2767 next if $_ eq ('0' x 40);
2768 $self->rev_map_set($r, $_);
2769 print "r$r = $_\n";
2770 }
2771 close $fh or croak "close: $!";
2772 unlink $path or croak "unlink: $!";
2773 }
2774
2775 sub rebuild {
2776 my ($self) = @_;
2777 my $map_path = $self->map_path;
2778 my $partial = (-e $map_path && ! -z $map_path);
2779 return unless ::verify_ref($self->refname.'^0');
2780 if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
2781 my $rev_db = $self->rev_db_path;
2782 $self->rebuild_from_rev_db($rev_db);
2783 if ($self->use_svm_props) {
2784 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
2785 $self->rebuild_from_rev_db($svm_rev_db);
2786 }
2787 $self->unlink_rev_db_symlink;
2788 return;
2789 }
2790 print "Rebuilding $map_path ...\n" if (!$partial);
2791 my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
2792 (undef, undef));
2793 my ($log, $ctx) =
2794 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
2795 ($head ? "$head.." : "") . $self->refname,
2796 '--');
2797 my $metadata_url = $self->metadata_url;
2798 remove_username($metadata_url);
2799 my $svn_uuid = $self->ra_uuid;
2800 my $c;
2801 while (<$log>) {
2802 if ( m{^commit ($::sha1)$} ) {
2803 $c = $1;
2804 next;
2805 }
2806 next unless s{^\s*(git-svn-id:)}{$1};
2807 my ($url, $rev, $uuid) = ::extract_metadata($_);
2808 remove_username($url);
2809
2810 # ignore merges (from set-tree)
2811 next if (!defined $rev || !$uuid);
2812
2813 # if we merged or otherwise started elsewhere, this is
2814 # how we break out of it
2815 if (($uuid ne $svn_uuid) ||
2816 ($metadata_url && $url && ($url ne $metadata_url))) {
2817 next;
2818 }
2819 if ($partial && $head) {
2820 print "Partial-rebuilding $map_path ...\n";
2821 print "Currently at $base_rev = $head\n";
2822 $head = undef;
2823 }
2824
2825 $self->rev_map_set($rev, $c);
2826 print "r$rev = $c\n";
2827 }
2828 command_close_pipe($log, $ctx);
2829 print "Done rebuilding $map_path\n" if (!$partial || !$head);
2830 my $rev_db_path = $self->rev_db_path;
2831 if (-f $self->rev_db_path) {
2832 unlink $self->rev_db_path or croak "unlink: $!";
2833 }
2834 $self->unlink_rev_db_symlink;
2835 }
2836
2837 # rev_map:
2838 # Tie::File seems to be prone to offset errors if revisions get sparse,
2839 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
2840 # one of my favorite modules is out :< Next up would be one of the DBM
2841 # modules, but I'm not sure which is most portable...
2842 #
2843 # This is the replacement for the rev_db format, which was too big
2844 # and inefficient for large repositories with a lot of sparse history
2845 # (mainly tags)
2846 #
2847 # The format is this:
2848 # - 24 bytes for every record,
2849 # * 4 bytes for the integer representing an SVN revision number
2850 # * 20 bytes representing the sha1 of a git commit
2851 # - No empty padding records like the old format
2852 # (except the last record, which can be overwritten)
2853 # - new records are written append-only since SVN revision numbers
2854 # increase monotonically
2855 # - lookups on SVN revision number are done via a binary search
2856 # - Piping the file to xxd -c24 is a good way of dumping it for
2857 # viewing or editing (piped back through xxd -r), should the need
2858 # ever arise.
2859 # - The last record can be padding revision with an all-zero sha1
2860 # This is used to optimize fetch performance when using multiple
2861 # "fetch" directives in .git/config
2862 #
2863 # These files are disposable unless noMetadata or useSvmProps is set
2864
2865 sub _rev_map_set {
2866 my ($fh, $rev, $commit) = @_;
2867
2868 binmode $fh or croak "binmode: $!";
2869 my $size = (stat($fh))[7];
2870 ($size % 24) == 0 or croak "inconsistent size: $size";
2871
2872 my $wr_offset = 0;
2873 if ($size > 0) {
2874 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2875 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
2876 $read == 24 or croak "read only $read bytes (!= 24)";
2877 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
2878 if ($last_commit eq ('0' x40)) {
2879 if ($size >= 48) {
2880 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2881 $read = sysread($fh, $buf, 24) or
2882 croak "read: $!";
2883 $read == 24 or
2884 croak "read only $read bytes (!= 24)";
2885 ($last_rev, $last_commit) =
2886 unpack(rev_map_fmt, $buf);
2887 if ($last_commit eq ('0' x40)) {
2888 croak "inconsistent .rev_map\n";
2889 }
2890 }
2891 if ($last_rev >= $rev) {
2892 croak "last_rev is higher!: $last_rev >= $rev";
2893 }
2894 $wr_offset = -24;
2895 }
2896 }
2897 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
2898 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
2899 croak "write: $!";
2900 }
2901
2902 sub mkfile {
2903 my ($path) = @_;
2904 unless (-e $path) {
2905 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2906 mkpath([$dir]) unless -d $dir;
2907 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2908 close $fh or die "Couldn't close (create) $path: $!\n";
2909 }
2910 }
2911
2912 sub rev_map_set {
2913 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2914 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2915 my $db = $self->map_path($uuid);
2916 my $db_lock = "$db.lock";
2917 my $sig;
2918 if ($update_ref) {
2919 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2920 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
2921 }
2922 mkfile($db);
2923
2924 $LOCKFILES{$db_lock} = 1;
2925 my $sync;
2926 # both of these options make our .rev_db file very, very important
2927 # and we can't afford to lose it because rebuild() won't work
2928 if ($self->use_svm_props || $self->no_metadata) {
2929 $sync = 1;
2930 copy($db, $db_lock) or die "rev_map_set(@_): ",
2931 "Failed to copy: ",
2932 "$db => $db_lock ($!)\n";
2933 } else {
2934 rename $db, $db_lock or die "rev_map_set(@_): ",
2935 "Failed to rename: ",
2936 "$db => $db_lock ($!)\n";
2937 }
2938
2939 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
2940 or croak "Couldn't open $db_lock: $!\n";
2941 _rev_map_set($fh, $rev, $commit);
2942 if ($sync) {
2943 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2944 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2945 }
2946 close $fh or croak $!;
2947 if ($update_ref) {
2948 $_head = $self;
2949 command_noisy('update-ref', '-m', "r$rev",
2950 $self->refname, $commit);
2951 }
2952 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
2953 "$db_lock => $db ($!)\n";
2954 delete $LOCKFILES{$db_lock};
2955 if ($update_ref) {
2956 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2957 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2958 kill $sig, $$ if defined $sig;
2959 }
2960 }
2961
2962 # If want_commit, this will return an array of (rev, commit) where
2963 # commit _must_ be a valid commit in the archive.
2964 # Otherwise, it'll return the max revision (whether or not the
2965 # commit is valid or just a 0x40 placeholder).
2966 sub rev_map_max {
2967 my ($self, $want_commit) = @_;
2968 $self->rebuild;
2969 my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
2970 $want_commit ? ($r, $c) : $r;
2971 }
2972
2973 sub rev_map_max_norebuild {
2974 my ($self, $want_commit) = @_;
2975 my $map_path = $self->map_path;
2976 stat $map_path or return $want_commit ? (0, undef) : 0;
2977 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2978 binmode $fh or croak "binmode: $!";
2979 my $size = (stat($fh))[7];
2980 ($size % 24) == 0 or croak "inconsistent size: $size";
2981
2982 if ($size == 0) {
2983 close $fh or croak "close: $!";
2984 return $want_commit ? (0, undef) : 0;
2985 }
2986
2987 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2988 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2989 my ($r, $c) = unpack(rev_map_fmt, $buf);
2990 if ($want_commit && $c eq ('0' x40)) {
2991 if ($size < 48) {
2992 return $want_commit ? (0, undef) : 0;
2993 }
2994 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2995 sysread($fh, $buf, 24) == 24 or croak "read: $!";
2996 ($r, $c) = unpack(rev_map_fmt, $buf);
2997 if ($c eq ('0'x40)) {
2998 croak "Penultimate record is all-zeroes in $map_path";
2999 }
3000 }
3001 close $fh or croak "close: $!";
3002 $want_commit ? ($r, $c) : $r;
3003 }
3004
3005 sub rev_map_get {
3006 my ($self, $rev, $uuid) = @_;
3007 my $map_path = $self->map_path($uuid);
3008 return undef unless -e $map_path;
3009
3010 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
3011 binmode $fh or croak "binmode: $!";
3012 my $size = (stat($fh))[7];
3013 ($size % 24) == 0 or croak "inconsistent size: $size";
3014
3015 if ($size == 0) {
3016 close $fh or croak "close: $fh";
3017 return undef;
3018 }
3019
3020 my ($l, $u) = (0, $size - 24);
3021 my ($r, $c, $buf);
3022
3023 while ($l <= $u) {
3024 my $i = int(($l/24 + $u/24) / 2) * 24;
3025 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
3026 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
3027 my ($r, $c) = unpack('NH40', $buf);
3028
3029 if ($r < $rev) {
3030 $l = $i + 24;
3031 } elsif ($r > $rev) {
3032 $u = $i - 24;
3033 } else { # $r == $rev
3034 close($fh) or croak "close: $!";
3035 return $c eq ('0' x 40) ? undef : $c;
3036 }
3037 }
3038 close($fh) or croak "close: $!";
3039 undef;
3040 }
3041
3042 # Finds the first svn revision that exists on (if $eq_ok is true) or
3043 # before $rev for the current branch. It will not search any lower
3044 # than $min_rev. Returns the git commit hash and svn revision number
3045 # if found, else (undef, undef).
3046 sub find_rev_before {
3047 my ($self, $rev, $eq_ok, $min_rev) = @_;
3048 --$rev unless $eq_ok;
3049 $min_rev ||= 1;
3050 while ($rev >= $min_rev) {
3051 if (my $c = $self->rev_map_get($rev)) {
3052 return ($rev, $c);
3053 }
3054 --$rev;
3055 }
3056 return (undef, undef);
3057 }
3058
3059 # Finds the first svn revision that exists on (if $eq_ok is true) or
3060 # after $rev for the current branch. It will not search any higher
3061 # than $max_rev. Returns the git commit hash and svn revision number
3062 # if found, else (undef, undef).
3063 sub find_rev_after {
3064 my ($self, $rev, $eq_ok, $max_rev) = @_;
3065 ++$rev unless $eq_ok;
3066 $max_rev ||= $self->rev_map_max;
3067 while ($rev <= $max_rev) {
3068 if (my $c = $self->rev_map_get($rev)) {
3069 return ($rev, $c);
3070 }
3071 ++$rev;
3072 }
3073 return (undef, undef);
3074 }
3075
3076 sub _new {
3077 my ($class, $repo_id, $ref_id, $path) = @_;
3078 unless (defined $repo_id && length $repo_id) {
3079 $repo_id = $Git::SVN::default_repo_id;
3080 }
3081 unless (defined $ref_id && length $ref_id) {
3082 $_[2] = $ref_id = $Git::SVN::default_ref_id;
3083 }
3084 $_[1] = $repo_id;
3085 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
3086 $_[3] = $path = '' unless (defined $path);
3087 mkpath(["$ENV{GIT_DIR}/svn"]);
3088 bless {
3089 ref_id => $ref_id, dir => $dir, index => "$dir/index",
3090 path => $path, config => "$ENV{GIT_DIR}/svn/config",
3091 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
3092 }
3093
3094 # for read-only access of old .rev_db formats
3095 sub unlink_rev_db_symlink {
3096 my ($self) = @_;
3097 my $link = $self->rev_db_path;
3098 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
3099 if (-l $link) {
3100 unlink $link or croak "unlink: $link failed!";
3101 }
3102 }
3103
3104 sub rev_db_path {
3105 my ($self, $uuid) = @_;
3106 my $db_path = $self->map_path($uuid);
3107 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
3108 or croak "map_path: $db_path does not contain '/.rev_map.' !";
3109 $db_path;
3110 }
3111
3112 # the new replacement for .rev_db
3113 sub map_path {
3114 my ($self, $uuid) = @_;
3115 $uuid ||= $self->ra_uuid;
3116 "$self->{map_root}.$uuid";
3117 }
3118
3119 sub uri_encode {
3120 my ($f) = @_;
3121 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
3122 $f
3123 }
3124
3125 sub remove_username {
3126 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
3127 }
3128
3129 package Git::SVN::Prompt;
3130 use strict;
3131 use warnings;
3132 require SVN::Core;
3133 use vars qw/$_no_auth_cache $_username/;
3134
3135 sub simple {
3136 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
3137 $may_save = undef if $_no_auth_cache;
3138 $default_username = $_username if defined $_username;
3139 if (defined $default_username && length $default_username) {
3140 if (defined $realm && length $realm) {
3141 print STDERR "Authentication realm: $realm\n";
3142 STDERR->flush;
3143 }
3144 $cred->username($default_username);
3145 } else {
3146 username($cred, $realm, $may_save, $pool);
3147 }
3148 $cred->password(_read_password("Password for '" .
3149 $cred->username . "': ", $realm));
3150 $cred->may_save($may_save);
3151 $SVN::_Core::SVN_NO_ERROR;
3152 }
3153
3154 sub ssl_server_trust {
3155 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
3156 $may_save = undef if $_no_auth_cache;
3157 print STDERR "Error validating server certificate for '$realm':\n";
3158 {
3159 no warnings 'once';
3160 # All variables SVN::Auth::SSL::* are used only once,
3161 # so we're shutting up Perl warnings about this.
3162 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
3163 print STDERR " - The certificate is not issued ",
3164 "by a trusted authority. Use the\n",
3165 " fingerprint to validate ",
3166 "the certificate manually!\n";
3167 }
3168 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
3169 print STDERR " - The certificate hostname ",
3170 "does not match.\n";
3171 }
3172 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
3173 print STDERR " - The certificate is not yet valid.\n";
3174 }
3175 if ($failures & $SVN::Auth::SSL::EXPIRED) {
3176 print STDERR " - The certificate has expired.\n";
3177 }
3178 if ($failures & $SVN::Auth::SSL::OTHER) {
3179 print STDERR " - The certificate has ",
3180 "an unknown error.\n";
3181 }
3182 } # no warnings 'once'
3183 printf STDERR
3184 "Certificate information:\n".
3185 " - Hostname: %s\n".
3186 " - Valid: from %s until %s\n".
3187 " - Issuer: %s\n".
3188 " - Fingerprint: %s\n",
3189 map $cert_info->$_, qw(hostname valid_from valid_until
3190 issuer_dname fingerprint);
3191 my $choice;
3192 prompt:
3193 print STDERR $may_save ?
3194 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
3195 "(R)eject or accept (t)emporarily? ";
3196 STDERR->flush;
3197 $choice = lc(substr(<STDIN> || 'R', 0, 1));
3198 if ($choice =~ /^t$/i) {
3199 $cred->may_save(undef);
3200 } elsif ($choice =~ /^r$/i) {
3201 return -1;
3202 } elsif ($may_save && $choice =~ /^p$/i) {
3203 $cred->may_save($may_save);
3204 } else {
3205 goto prompt;
3206 }
3207 $cred->accepted_failures($failures);
3208 $SVN::_Core::SVN_NO_ERROR;
3209 }
3210
3211 sub ssl_client_cert {
3212 my ($cred, $realm, $may_save, $pool) = @_;
3213 $may_save = undef if $_no_auth_cache;
3214 print STDERR "Client certificate filename: ";
3215 STDERR->flush;
3216 chomp(my $filename = <STDIN>);
3217 $cred->cert_file($filename);
3218 $cred->may_save($may_save);
3219 $SVN::_Core::SVN_NO_ERROR;
3220 }
3221
3222 sub ssl_client_cert_pw {
3223 my ($cred, $realm, $may_save, $pool) = @_;
3224 $may_save = undef if $_no_auth_cache;
3225 $cred->password(_read_password("Password: ", $realm));
3226 $cred->may_save($may_save);
3227 $SVN::_Core::SVN_NO_ERROR;
3228 }
3229
3230 sub username {
3231 my ($cred, $realm, $may_save, $pool) = @_;
3232 $may_save = undef if $_no_auth_cache;
3233 if (defined $realm && length $realm) {
3234 print STDERR "Authentication realm: $realm\n";
3235 }
3236 my $username;
3237 if (defined $_username) {
3238 $username = $_username;
3239 } else {
3240 print STDERR "Username: ";
3241 STDERR->flush;
3242 chomp($username = <STDIN>);
3243 }
3244 $cred->username($username);
3245 $cred->may_save($may_save);
3246 $SVN::_Core::SVN_NO_ERROR;
3247 }
3248
3249 sub _read_password {
3250 my ($prompt, $realm) = @_;
3251 print STDERR $prompt;
3252 STDERR->flush;
3253 require Term::ReadKey;
3254 Term::ReadKey::ReadMode('noecho');
3255 my $password = '';
3256 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3257 last if $key =~ /[\012\015]/; # \n\r
3258 $password .= $key;
3259 }
3260 Term::ReadKey::ReadMode('restore');
3261 print STDERR "\n";
3262 STDERR->flush;
3263 $password;
3264 }
3265
3266 package SVN::Git::Fetcher;
3267 use vars qw/@ISA/;
3268 use strict;
3269 use warnings;
3270 use Carp qw/croak/;
3271 use File::Temp qw/tempfile/;
3272 use IO::File qw//;
3273 use vars qw/$_ignore_regex/;
3274
3275 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3276 sub new {
3277 my ($class, $git_svn, $switch_path) = @_;
3278 my $self = SVN::Delta::Editor->new;
3279 bless $self, $class;
3280 if (exists $git_svn->{last_commit}) {
3281 $self->{c} = $git_svn->{last_commit};
3282 $self->{empty_symlinks} =
3283 _mark_empty_symlinks($git_svn, $switch_path);
3284 }
3285 $self->{empty} = {};
3286 $self->{dir_prop} = {};
3287 $self->{file_prop} = {};
3288 $self->{absent_dir} = {};
3289 $self->{absent_file} = {};
3290 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3291 $self;
3292 }
3293
3294 # this uses the Ra object, so it must be called before do_{switch,update},
3295 # not inside them (when the Git::SVN::Fetcher object is passed) to
3296 # do_{switch,update}
3297 sub _mark_empty_symlinks {
3298 my ($git_svn, $switch_path) = @_;
3299 my $bool = Git::config_bool('svn.brokenSymlinkWorkaround');
3300 return {} if (!defined($bool)) || (defined($bool) && ! $bool);
3301
3302 my %ret;
3303 my ($rev, $cmt) = $git_svn->last_rev_commit;
3304 return {} unless ($rev && $cmt);
3305
3306 # allow the warning to be printed for each revision we fetch to
3307 # ensure the user sees it. The user can also disable the workaround
3308 # on the repository even while git svn is running and the next
3309 # revision fetched will skip this expensive function.
3310 my $printed_warning;
3311 chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`);
3312 my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt);
3313 local $/ = "\0";
3314 my $pfx = defined($switch_path) ? $switch_path : $git_svn->{path};
3315 $pfx .= '/' if length($pfx);
3316 while (<$ls>) {
3317 chomp;
3318 s/\A100644 blob $empty_blob\t//o or next;
3319 unless ($printed_warning) {
3320 print STDERR "Scanning for empty symlinks, ",
3321 "this may take a while if you have ",
3322 "many empty files\n",
3323 "You may disable this with `",
3324 "git config svn.brokenSymlinkWorkaround ",
3325 "false'.\n",
3326 "This may be done in a different ",
3327 "terminal without restarting ",
3328 "git svn\n";
3329 $printed_warning = 1;
3330 }
3331 my $path = $_;
3332 my (undef, $props) =
3333 $git_svn->ra->get_file($pfx.$path, $rev, undef);
3334 if ($props->{'svn:special'}) {
3335 $ret{$path} = 1;
3336 }
3337 }
3338 command_close_pipe($ls, $ctx);
3339 \%ret;
3340 }
3341
3342 # returns true if a given path is inside a ".git" directory
3343 sub in_dot_git {
3344 $_[0] =~ m{(?:^|/)\.git(?:/|$)};
3345 }
3346
3347 # return value: 0 -- don't ignore, 1 -- ignore
3348 sub is_path_ignored {
3349 my ($path) = @_;
3350 return 1 if in_dot_git($path);
3351 return 0 unless defined($_ignore_regex);
3352 return 1 if $path =~ m!$_ignore_regex!o;
3353 return 0;
3354 }
3355
3356 sub set_path_strip {
3357 my ($self, $path) = @_;
3358 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3359 }
3360
3361 sub open_root {
3362 { path => '' };
3363 }
3364
3365 sub open_directory {
3366 my ($self, $path, $pb, $rev) = @_;
3367 { path => $path };
3368 }
3369
3370 sub git_path {
3371 my ($self, $path) = @_;
3372 if ($self->{path_strip}) {
3373 $path =~ s!$self->{path_strip}!! or
3374 die "Failed to strip path '$path' ($self->{path_strip})\n";
3375 }
3376 $path;
3377 }
3378
3379 sub delete_entry {
3380 my ($self, $path, $rev, $pb) = @_;
3381 return undef if is_path_ignored($path);
3382
3383 my $gpath = $self->git_path($path);
3384 return undef if ($gpath eq '');
3385
3386 # remove entire directories.
3387 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
3388 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3389 -r --name-only -z/,
3390 $self->{c}, '--', $gpath);
3391 local $/ = "\0";
3392 while (<$ls>) {
3393 chomp;
3394 $self->{gii}->remove($_);
3395 print "\tD\t$_\n" unless $::_q;
3396 }
3397 print "\tD\t$gpath/\n" unless $::_q;
3398 command_close_pipe($ls, $ctx);
3399 $self->{empty}->{$path} = 0
3400 } else {
3401 $self->{gii}->remove($gpath);
3402 print "\tD\t$gpath\n" unless $::_q;
3403 }
3404 undef;
3405 }
3406
3407 sub open_file {
3408 my ($self, $path, $pb, $rev) = @_;
3409 my ($mode, $blob);
3410
3411 goto out if is_path_ignored($path);
3412
3413 my $gpath = $self->git_path($path);
3414 ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
3415 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
3416 unless (defined $mode && defined $blob) {
3417 die "$path was not found in commit $self->{c} (r$rev)\n";
3418 }
3419 if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) {
3420 $mode = '120000';
3421 }
3422 out:
3423 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3424 pool => SVN::Pool->new, action => 'M' };
3425 }
3426
3427 sub add_file {
3428 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3429 my $mode;
3430
3431 if (!is_path_ignored($path)) {
3432 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3433 delete $self->{empty}->{$dir};
3434 $mode = '100644';
3435 }
3436 { path => $path, mode_a => $mode, mode_b => $mode,
3437 pool => SVN::Pool->new, action => 'A' };
3438 }
3439
3440 sub add_directory {
3441 my ($self, $path, $cp_path, $cp_rev) = @_;
3442 goto out if is_path_ignored($path);
3443 my $gpath = $self->git_path($path);
3444 if ($gpath eq '') {
3445 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3446 -r --name-only -z/,
3447 $self->{c});
3448 local $/ = "\0";
3449 while (<$ls>) {
3450 chomp;
3451 $self->{gii}->remove($_);
3452 print "\tD\t$_\n" unless $::_q;
3453 }
3454 command_close_pipe($ls, $ctx);
3455 $self->{empty}->{$path} = 0;
3456 }
3457 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3458 delete $self->{empty}->{$dir};
3459 $self->{empty}->{$path} = 1;
3460 out:
3461 { path => $path };
3462 }
3463
3464 sub change_dir_prop {
3465 my ($self, $db, $prop, $value) = @_;
3466 return undef if is_path_ignored($db->{path});
3467 $self->{dir_prop}->{$db->{path}} ||= {};
3468 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
3469 undef;
3470 }
3471
3472 sub absent_directory {
3473 my ($self, $path, $pb) = @_;
3474 return undef if is_path_ignored($path);
3475 $self->{absent_dir}->{$pb->{path}} ||= [];
3476 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
3477 undef;
3478 }
3479
3480 sub absent_file {
3481 my ($self, $path, $pb) = @_;
3482 return undef if is_path_ignored($path);
3483 $self->{absent_file}->{$pb->{path}} ||= [];
3484 push @{$self->{absent_file}->{$pb->{path}}}, $path;
3485 undef;
3486 }
3487
3488 sub change_file_prop {
3489 my ($self, $fb, $prop, $value) = @_;
3490 return undef if is_path_ignored($fb->{path});
3491 if ($prop eq 'svn:executable') {
3492 if ($fb->{mode_b} != 120000) {
3493 $fb->{mode_b} = defined $value ? 100755 : 100644;
3494 }
3495 } elsif ($prop eq 'svn:special') {
3496 $fb->{mode_b} = defined $value ? 120000 : 100644;
3497 } else {
3498 $self->{file_prop}->{$fb->{path}} ||= {};
3499 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
3500 }
3501 undef;
3502 }
3503
3504 sub apply_textdelta {
3505 my ($self, $fb, $exp) = @_;
3506 return undef if is_path_ignored($fb->{path});
3507 my $fh = $::_repository->temp_acquire('svn_delta');
3508 # $fh gets auto-closed() by SVN::TxDelta::apply(),
3509 # (but $base does not,) so dup() it for reading in close_file
3510 open my $dup, '<&', $fh or croak $!;
3511 my $base = $::_repository->temp_acquire('git_blob');
3512
3513 if ($fb->{blob}) {
3514 my ($base_is_link, $size);
3515
3516 if ($fb->{mode_a} eq '120000' &&
3517 ! $self->{empty_symlinks}->{$fb->{path}}) {
3518 print $base 'link ' or die "print $!\n";
3519 $base_is_link = 1;
3520 }
3521 retry:
3522 $size = $::_repository->cat_blob($fb->{blob}, $base);
3523 die "Failed to read object $fb->{blob}" if ($size < 0);
3524
3525 if (defined $exp) {
3526 seek $base, 0, 0 or croak $!;
3527 my $got = ::md5sum($base);
3528 if ($got ne $exp) {
3529 my $err = "Checksum mismatch: ".
3530 "$fb->{path} $fb->{blob}\n" .
3531 "expected: $exp\n" .
3532 " got: $got\n";
3533 if ($base_is_link) {
3534 warn $err,
3535 "Retrying... (possibly ",
3536 "a bad symlink from SVN)\n";
3537 $::_repository->temp_reset($base);
3538 $base_is_link = 0;
3539 goto retry;
3540 }
3541 die $err;
3542 }
3543 }
3544 }
3545 seek $base, 0, 0 or croak $!;
3546 $fb->{fh} = $fh;
3547 $fb->{base} = $base;
3548 [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
3549 }
3550
3551 sub close_file {
3552 my ($self, $fb, $exp) = @_;
3553 return undef if is_path_ignored($fb->{path});
3554
3555 my $hash;
3556 my $path = $self->git_path($fb->{path});
3557 if (my $fh = $fb->{fh}) {
3558 if (defined $exp) {
3559 seek($fh, 0, 0) or croak $!;
3560 my $got = ::md5sum($fh);
3561 if ($got ne $exp) {
3562 die "Checksum mismatch: $path\n",
3563 "expected: $exp\n got: $got\n";
3564 }
3565 }
3566 if ($fb->{mode_b} == 120000) {
3567 sysseek($fh, 0, 0) or croak $!;
3568 my $rd = sysread($fh, my $buf, 5);
3569
3570 if (!defined $rd) {
3571 croak "sysread: $!\n";
3572 } elsif ($rd == 0) {
3573 warn "$path has mode 120000",
3574 " but it points to nothing\n",
3575 "converting to an empty file with mode",
3576 " 100644\n";
3577 $fb->{mode_b} = '100644';
3578 } elsif ($buf ne 'link ') {
3579 warn "$path has mode 120000",
3580 " but is not a link\n";
3581 } else {
3582 my $tmp_fh = $::_repository->temp_acquire(
3583 'svn_hash');
3584 my $res;
3585 while ($res = sysread($fh, my $str, 1024)) {
3586 my $out = syswrite($tmp_fh, $str, $res);
3587 defined($out) && $out == $res
3588 or croak("write ",
3589 Git::temp_path($tmp_fh),
3590 ": $!\n");
3591 }
3592 defined $res or croak $!;
3593
3594 ($fh, $tmp_fh) = ($tmp_fh, $fh);
3595 Git::temp_release($tmp_fh, 1);
3596 }
3597 }
3598
3599 $hash = $::_repository->hash_and_insert_object(
3600 Git::temp_path($fh));
3601 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
3602
3603 Git::temp_release($fb->{base}, 1);
3604 Git::temp_release($fh, 1);
3605 } else {
3606 $hash = $fb->{blob} or die "no blob information\n";
3607 }
3608 $fb->{pool}->clear;
3609 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
3610 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
3611 undef;
3612 }
3613
3614 sub abort_edit {
3615 my $self = shift;
3616 $self->{nr} = $self->{gii}->{nr};
3617 delete $self->{gii};
3618 $self->SUPER::abort_edit(@_);
3619 }
3620
3621 sub close_edit {
3622 my $self = shift;
3623 $self->{git_commit_ok} = 1;
3624 $self->{nr} = $self->{gii}->{nr};
3625 delete $self->{gii};
3626 $self->SUPER::close_edit(@_);
3627 }
3628
3629 package SVN::Git::Editor;
3630 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
3631 use strict;
3632 use warnings;
3633 use Carp qw/croak/;
3634 use IO::File;
3635
3636 sub new {
3637 my ($class, $opts) = @_;
3638 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
3639 die "$_ required!\n" unless (defined $opts->{$_});
3640 }
3641
3642 my $pool = SVN::Pool->new;
3643 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
3644 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
3645 $opts->{r}, $mods);
3646
3647 # $opts->{ra} functions should not be used after this:
3648 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
3649 $opts->{editor_cb}, $pool);
3650 my $self = SVN::Delta::Editor->new(@ce, $pool);
3651 bless $self, $class;
3652 foreach (qw/svn_path r tree_a tree_b/) {
3653 $self->{$_} = $opts->{$_};
3654 }
3655 $self->{url} = $opts->{ra}->{url};
3656 $self->{mods} = $mods;
3657 $self->{types} = $types;
3658 $self->{pool} = $pool;
3659 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
3660 $self->{rm} = { };
3661 $self->{path_prefix} = length $self->{svn_path} ?
3662 "$self->{svn_path}/" : '';
3663 $self->{config} = $opts->{config};
3664 return $self;
3665 }
3666
3667 sub generate_diff {
3668 my ($tree_a, $tree_b) = @_;
3669 my @diff_tree = qw(diff-tree -z -r);
3670 if ($_cp_similarity) {
3671 push @diff_tree, "-C$_cp_similarity";
3672 } else {
3673 push @diff_tree, '-C';
3674 }
3675 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
3676 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
3677 push @diff_tree, $tree_a, $tree_b;
3678 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
3679 local $/ = "\0";
3680 my $state = 'meta';
3681 my @mods;
3682 while (<$diff_fh>) {
3683 chomp $_; # this gets rid of the trailing "\0"
3684 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
3685 ($::sha1)\s($::sha1)\s
3686 ([MTCRAD])\d*$/xo) {
3687 push @mods, { mode_a => $1, mode_b => $2,
3688 sha1_a => $3, sha1_b => $4,
3689 chg => $5 };
3690 if ($5 =~ /^(?:C|R)$/) {
3691 $state = 'file_a';
3692 } else {
3693 $state = 'file_b';
3694 }
3695 } elsif ($state eq 'file_a') {
3696 my $x = $mods[$#mods] or croak "Empty array\n";
3697 if ($x->{chg} !~ /^(?:C|R)$/) {
3698 croak "Error parsing $_, $x->{chg}\n";
3699 }
3700 $x->{file_a} = $_;
3701 $state = 'file_b';
3702 } elsif ($state eq 'file_b') {
3703 my $x = $mods[$#mods] or croak "Empty array\n";
3704 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
3705 croak "Error parsing $_, $x->{chg}\n";
3706 }
3707 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
3708 croak "Error parsing $_, $x->{chg}\n";
3709 }
3710 $x->{file_b} = $_;
3711 $state = 'meta';
3712 } else {
3713 croak "Error parsing $_\n";
3714 }
3715 }
3716 command_close_pipe($diff_fh, $ctx);
3717 \@mods;
3718 }
3719
3720 sub check_diff_paths {
3721 my ($ra, $pfx, $rev, $mods) = @_;
3722 my %types;
3723 $pfx .= '/' if length $pfx;
3724
3725 sub type_diff_paths {
3726 my ($ra, $types, $path, $rev) = @_;
3727 my @p = split m#/+#, $path;
3728 my $c = shift @p;
3729 unless (defined $types->{$c}) {
3730 $types->{$c} = $ra->check_path($c, $rev);
3731 }
3732 while (@p) {
3733 $c .= '/' . shift @p;
3734 next if defined $types->{$c};
3735 $types->{$c} = $ra->check_path($c, $rev);
3736 }
3737 }
3738
3739 foreach my $m (@$mods) {
3740 foreach my $f (qw/file_a file_b/) {
3741 next unless defined $m->{$f};
3742 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
3743 if (length $pfx.$dir && ! defined $types{$dir}) {
3744 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
3745 }
3746 }
3747 }
3748 \%types;
3749 }
3750
3751 sub split_path {
3752 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
3753 }
3754
3755 sub repo_path {
3756 my ($self, $path) = @_;
3757 $self->{path_prefix}.(defined $path ? $path : '');
3758 }
3759
3760 sub url_path {
3761 my ($self, $path) = @_;
3762 if ($self->{url} =~ m#^https?://#) {
3763 $path =~ s/([^~a-zA-Z0-9_.-])/uc sprintf("%%%02x",ord($1))/eg;
3764 }
3765 $self->{url} . '/' . $self->repo_path($path);
3766 }
3767
3768 sub rmdirs {
3769 my ($self) = @_;
3770 my $rm = $self->{rm};
3771 delete $rm->{''}; # we never delete the url we're tracking
3772 return unless %$rm;
3773
3774 foreach (keys %$rm) {
3775 my @d = split m#/#, $_;
3776 my $c = shift @d;
3777 $rm->{$c} = 1;
3778 while (@d) {
3779 $c .= '/' . shift @d;
3780 $rm->{$c} = 1;
3781 }
3782 }
3783 delete $rm->{$self->{svn_path}};
3784 delete $rm->{''}; # we never delete the url we're tracking
3785 return unless %$rm;
3786
3787 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
3788 $self->{tree_b});
3789 local $/ = "\0";
3790 while (<$fh>) {
3791 chomp;
3792 my @dn = split m#/#, $_;
3793 while (pop @dn) {
3794 delete $rm->{join '/', @dn};
3795 }
3796 unless (%$rm) {
3797 close $fh;
3798 return;
3799 }
3800 }
3801 command_close_pipe($fh, $ctx);
3802
3803 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
3804 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
3805 $self->close_directory($bat->{$d}, $p);
3806 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
3807 print "\tD+\t$d/\n" unless $::_q;
3808 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
3809 delete $bat->{$d};
3810 }
3811 }
3812
3813 sub open_or_add_dir {
3814 my ($self, $full_path, $baton) = @_;
3815 my $t = $self->{types}->{$full_path};
3816 if (!defined $t) {
3817 die "$full_path not known in r$self->{r} or we have a bug!\n";
3818 }
3819 {
3820 no warnings 'once';
3821 # SVN::Node::none and SVN::Node::file are used only once,
3822 # so we're shutting up Perl's warnings about them.
3823 if ($t == $SVN::Node::none) {
3824 return $self->add_directory($full_path, $baton,
3825 undef, -1, $self->{pool});
3826 } elsif ($t == $SVN::Node::dir) {
3827 return $self->open_directory($full_path, $baton,
3828 $self->{r}, $self->{pool});
3829 } # no warnings 'once'
3830 print STDERR "$full_path already exists in repository at ",
3831 "r$self->{r} and it is not a directory (",
3832 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
3833 } # no warnings 'once'
3834 exit 1;
3835 }
3836
3837 sub ensure_path {
3838 my ($self, $path) = @_;
3839 my $bat = $self->{bat};
3840 my $repo_path = $self->repo_path($path);
3841 return $bat->{''} unless (length $repo_path);
3842 my @p = split m#/+#, $repo_path;
3843 my $c = shift @p;
3844 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
3845 while (@p) {
3846 my $c0 = $c;
3847 $c .= '/' . shift @p;
3848 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
3849 }
3850 return $bat->{$c};
3851 }
3852
3853 # Subroutine to convert a globbing pattern to a regular expression.
3854 # From perl cookbook.
3855 sub glob2pat {
3856 my $globstr = shift;
3857 my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
3858 $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
3859 return '^' . $globstr . '$';
3860 }
3861
3862 sub check_autoprop {
3863 my ($self, $pattern, $properties, $file, $fbat) = @_;
3864 # Convert the globbing pattern to a regular expression.
3865 my $regex = glob2pat($pattern);
3866 # Check if the pattern matches the file name.
3867 if($file =~ m/($regex)/) {
3868 # Parse the list of properties to set.
3869 my @props = split(/;/, $properties);
3870 foreach my $prop (@props) {
3871 # Parse 'name=value' syntax and set the property.
3872 if ($prop =~ /([^=]+)=(.*)/) {
3873 my ($n,$v) = ($1,$2);
3874 for ($n, $v) {
3875 s/^\s+//; s/\s+$//;
3876 }
3877 $self->change_file_prop($fbat, $n, $v);
3878 }
3879 }
3880 }
3881 }
3882
3883 sub apply_autoprops {
3884 my ($self, $file, $fbat) = @_;
3885 my $conf_t = ${$self->{config}}{'config'};
3886 no warnings 'once';
3887 # Check [miscellany]/enable-auto-props in svn configuration.
3888 if (SVN::_Core::svn_config_get_bool(
3889 $conf_t,
3890 $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
3891 $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
3892 0)) {
3893 # Auto-props are enabled. Enumerate them to look for matches.
3894 my $callback = sub {
3895 $self->check_autoprop($_[0], $_[1], $file, $fbat);
3896 };
3897 SVN::_Core::svn_config_enumerate(
3898 $conf_t,
3899 $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
3900 $callback);
3901 }
3902 }
3903
3904 sub A {
3905 my ($self, $m) = @_;
3906 my ($dir, $file) = split_path($m->{file_b});
3907 my $pbat = $self->ensure_path($dir);
3908 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3909 undef, -1);
3910 print "\tA\t$m->{file_b}\n" unless $::_q;
3911 $self->apply_autoprops($file, $fbat);
3912 $self->chg_file($fbat, $m);
3913 $self->close_file($fbat,undef,$self->{pool});
3914 }
3915
3916 sub C {
3917 my ($self, $m) = @_;
3918 my ($dir, $file) = split_path($m->{file_b});
3919 my $pbat = $self->ensure_path($dir);
3920 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3921 $self->url_path($m->{file_a}), $self->{r});
3922 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3923 $self->chg_file($fbat, $m);
3924 $self->close_file($fbat,undef,$self->{pool});
3925 }
3926
3927 sub delete_entry {
3928 my ($self, $path, $pbat) = @_;
3929 my $rpath = $self->repo_path($path);
3930 my ($dir, $file) = split_path($rpath);
3931 $self->{rm}->{$dir} = 1;
3932 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
3933 }
3934
3935 sub R {
3936 my ($self, $m) = @_;
3937 my ($dir, $file) = split_path($m->{file_b});
3938 my $pbat = $self->ensure_path($dir);
3939 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3940 $self->url_path($m->{file_a}), $self->{r});
3941 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3942 $self->apply_autoprops($file, $fbat);
3943 $self->chg_file($fbat, $m);
3944 $self->close_file($fbat,undef,$self->{pool});
3945
3946 ($dir, $file) = split_path($m->{file_a});
3947 $pbat = $self->ensure_path($dir);
3948 $self->delete_entry($m->{file_a}, $pbat);
3949 }
3950
3951 sub M {
3952 my ($self, $m) = @_;
3953 my ($dir, $file) = split_path($m->{file_b});
3954 my $pbat = $self->ensure_path($dir);
3955 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
3956 $pbat,$self->{r},$self->{pool});
3957 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
3958 $self->chg_file($fbat, $m);
3959 $self->close_file($fbat,undef,$self->{pool});
3960 }
3961
3962 sub T { shift->M(@_) }
3963
3964 sub change_file_prop {
3965 my ($self, $fbat, $pname, $pval) = @_;
3966 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
3967 }
3968
3969 sub _chg_file_get_blob ($$$$) {
3970 my ($self, $fbat, $m, $which) = @_;
3971 my $fh = $::_repository->temp_acquire("git_blob_$which");
3972 if ($m->{"mode_$which"} =~ /^120/) {
3973 print $fh 'link ' or croak $!;
3974 $self->change_file_prop($fbat,'svn:special','*');
3975 } elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) {
3976 $self->change_file_prop($fbat,'svn:special',undef);
3977 }
3978 my $blob = $m->{"sha1_$which"};
3979 return ($fh,) if ($blob =~ /^0{40}$/);
3980 my $size = $::_repository->cat_blob($blob, $fh);
3981 croak "Failed to read object $blob" if ($size < 0);
3982 $fh->flush == 0 or croak $!;
3983 seek $fh, 0, 0 or croak $!;
3984
3985 my $exp = ::md5sum($fh);
3986 seek $fh, 0, 0 or croak $!;
3987 return ($fh, $exp);
3988 }
3989
3990 sub chg_file {
3991 my ($self, $fbat, $m) = @_;
3992 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
3993 $self->change_file_prop($fbat,'svn:executable','*');
3994 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
3995 $self->change_file_prop($fbat,'svn:executable',undef);
3996 }
3997 my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a';
3998 my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b';
3999 my $pool = SVN::Pool->new;
4000 my $atd = $self->apply_textdelta($fbat, $exp_a, $pool);
4001 if (-s $fh_a) {
4002 my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool);
4003 my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool);
4004 if (defined $res) {
4005 die "Unexpected result from send_txstream: $res\n",
4006 "(SVN::Core::VERSION: $SVN::Core::VERSION)\n";
4007 }
4008 } else {
4009 my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool);
4010 die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n"
4011 if ($got ne $exp_b);
4012 }
4013 Git::temp_release($fh_b, 1);
4014 Git::temp_release($fh_a, 1);
4015 $pool->clear;
4016 }
4017
4018 sub D {
4019 my ($self, $m) = @_;
4020 my ($dir, $file) = split_path($m->{file_b});
4021 my $pbat = $self->ensure_path($dir);
4022 print "\tD\t$m->{file_b}\n" unless $::_q;
4023 $self->delete_entry($m->{file_b}, $pbat);
4024 }
4025
4026 sub close_edit {
4027 my ($self) = @_;
4028 my ($p,$bat) = ($self->{pool}, $self->{bat});
4029 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
4030 next if $_ eq '';
4031 $self->close_directory($bat->{$_}, $p);
4032 }
4033 $self->close_directory($bat->{''}, $p);
4034 $self->SUPER::close_edit($p);
4035 $p->clear;
4036 }
4037
4038 sub abort_edit {
4039 my ($self) = @_;
4040 $self->SUPER::abort_edit($self->{pool});
4041 }
4042
4043 sub DESTROY {
4044 my $self = shift;
4045 $self->SUPER::DESTROY(@_);
4046 $self->{pool}->clear;
4047 }
4048
4049 # this drives the editor
4050 sub apply_diff {
4051 my ($self) = @_;
4052 my $mods = $self->{mods};
4053 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
4054 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
4055 my $f = $m->{chg};
4056 if (defined $o{$f}) {
4057 $self->$f($m);
4058 } else {
4059 fatal("Invalid change type: $f");
4060 }
4061 }
4062 $self->rmdirs if $_rmdir;
4063 if (@$mods == 0) {
4064 $self->abort_edit;
4065 } else {
4066 $self->close_edit;
4067 }
4068 return scalar @$mods;
4069 }
4070
4071 package Git::SVN::Ra;
4072 use vars qw/@ISA $config_dir $_log_window_size/;
4073 use strict;
4074 use warnings;
4075 my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
4076
4077 BEGIN {
4078 # enforce temporary pool usage for some simple functions
4079 no strict 'refs';
4080 for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root
4081 get_file/) {
4082 my $SUPER = "SUPER::$f";
4083 *$f = sub {
4084 my $self = shift;
4085 my $pool = SVN::Pool->new;
4086 my @ret = $self->$SUPER(@_,$pool);
4087 $pool->clear;
4088 wantarray ? @ret : $ret[0];
4089 };
4090 }
4091 }
4092
4093 sub _auth_providers () {
4094 [
4095 SVN::Client::get_simple_provider(),
4096 SVN::Client::get_ssl_server_trust_file_provider(),
4097 SVN::Client::get_simple_prompt_provider(
4098 \&Git::SVN::Prompt::simple, 2),
4099 SVN::Client::get_ssl_client_cert_file_provider(),
4100 SVN::Client::get_ssl_client_cert_prompt_provider(
4101 \&Git::SVN::Prompt::ssl_client_cert, 2),
4102 SVN::Client::get_ssl_client_cert_pw_file_provider(),
4103 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
4104 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
4105 SVN::Client::get_username_provider(),
4106 SVN::Client::get_ssl_server_trust_prompt_provider(
4107 \&Git::SVN::Prompt::ssl_server_trust),
4108 SVN::Client::get_username_prompt_provider(
4109 \&Git::SVN::Prompt::username, 2)
4110 ]
4111 }
4112
4113 sub escape_uri_only {
4114 my ($uri) = @_;
4115 my @tmp;
4116 foreach (split m{/}, $uri) {
4117 s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
4118 push @tmp, $_;
4119 }
4120 join('/', @tmp);
4121 }
4122
4123 sub escape_url {
4124 my ($url) = @_;
4125 if ($url =~ m#^(https?)://([^/]+)(.*)$#) {
4126 my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3));
4127 $url = "$scheme://$domain$uri";
4128 }
4129 $url;
4130 }
4131
4132 sub new {
4133 my ($class, $url) = @_;
4134 $url =~ s!/+$!!;
4135 return $RA if ($RA && $RA->{url} eq $url);
4136
4137 SVN::_Core::svn_config_ensure($config_dir, undef);
4138 my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
4139 my $config = SVN::Core::config_get_config($config_dir);
4140 $RA = undef;
4141 my $dont_store_passwords = 1;
4142 my $conf_t = ${$config}{'config'};
4143 {
4144 no warnings 'once';
4145 # The usage of $SVN::_Core::SVN_CONFIG_* variables
4146 # produces warnings that variables are used only once.
4147 # I had not found the better way to shut them up, so
4148 # the warnings of type 'once' are disabled in this block.
4149 if (SVN::_Core::svn_config_get_bool($conf_t,
4150 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4151 $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
4152 1) == 0) {
4153 SVN::_Core::svn_auth_set_parameter($baton,
4154 $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
4155 bless (\$dont_store_passwords, "_p_void"));
4156 }
4157 if (SVN::_Core::svn_config_get_bool($conf_t,
4158 $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
4159 $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
4160 1) == 0) {
4161 $Git::SVN::Prompt::_no_auth_cache = 1;
4162 }
4163 } # no warnings 'once'
4164 my $self = SVN::Ra->new(url => escape_url($url), auth => $baton,
4165 config => $config,
4166 pool => SVN::Pool->new,
4167 auth_provider_callbacks => $callbacks);
4168 $self->{url} = $url;
4169 $self->{svn_path} = $url;
4170 $self->{repos_root} = $self->get_repos_root;
4171 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
4172 $self->{cache} = { check_path => { r => 0, data => {} },
4173 get_dir => { r => 0, data => {} } };
4174 $RA = bless $self, $class;
4175 }
4176
4177 sub check_path {
4178 my ($self, $path, $r) = @_;
4179 my $cache = $self->{cache}->{check_path};
4180 if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
4181 return $cache->{data}->{$path};
4182 }
4183 my $pool = SVN::Pool->new;
4184 my $t = $self->SUPER::check_path($path, $r, $pool);
4185 $pool->clear;
4186 if ($r != $cache->{r}) {
4187 %{$cache->{data}} = ();
4188 $cache->{r} = $r;
4189 }
4190 $cache->{data}->{$path} = $t;
4191 }
4192
4193 sub get_dir {
4194 my ($self, $dir, $r) = @_;
4195 my $cache = $self->{cache}->{get_dir};
4196 if ($r == $cache->{r}) {
4197 if (my $x = $cache->{data}->{$dir}) {
4198 return wantarray ? @$x : $x->[0];
4199 }
4200 }
4201 my $pool = SVN::Pool->new;
4202 my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
4203 my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
4204 $pool->clear;
4205 if ($r != $cache->{r}) {
4206 %{$cache->{data}} = ();
4207 $cache->{r} = $r;
4208 }
4209 $cache->{data}->{$dir} = [ \%dirents, $r, $props ];
4210 wantarray ? (\%dirents, $r, $props) : \%dirents;
4211 }
4212
4213 sub DESTROY {
4214 # do not call the real DESTROY since we store ourselves in $RA
4215 }
4216
4217 # get_log(paths, start, end, limit,
4218 # discover_changed_paths, strict_node_history, receiver)
4219 sub get_log {
4220 my ($self, @args) = @_;
4221 my $pool = SVN::Pool->new;
4222
4223 # the limit parameter was not supported in SVN 1.1.x, so we
4224 # drop it. Therefore, the receiver callback passed to it
4225 # is made aware of this limitation by being wrapped if
4226 # the limit passed to is being wrapped.
4227 if ($SVN::Core::VERSION le '1.2.0') {
4228 my $limit = splice(@args, 3, 1);
4229 if ($limit > 0) {
4230 my $receiver = pop @args;
4231 push(@args, sub { &$receiver(@_) if (--$limit >= 0) });
4232 }
4233 }
4234 my $ret = $self->SUPER::get_log(@args, $pool);
4235 $pool->clear;
4236 $ret;
4237 }
4238
4239 sub trees_match {
4240 my ($self, $url1, $rev1, $url2, $rev2) = @_;
4241 my $ctx = SVN::Client->new(auth => _auth_providers);
4242 my $out = IO::File->new_tmpfile;
4243
4244 # older SVN (1.1.x) doesn't take $pool as the last parameter for
4245 # $ctx->diff(), so we'll create a default one
4246 my $pool = SVN::Pool->new_default_sub;
4247
4248 $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
4249 $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
4250 $out->flush;
4251 my $ret = (($out->stat)[7] == 0);
4252 close $out or croak $!;
4253
4254 $ret;
4255 }
4256
4257 sub get_commit_editor {
4258 my ($self, $log, $cb, $pool) = @_;
4259 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
4260 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
4261 }
4262
4263 sub gs_do_update {
4264 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
4265 my $new = ($rev_a == $rev_b);
4266 my $path = $gs->{path};
4267
4268 if ($new && -e $gs->{index}) {
4269 unlink $gs->{index} or die
4270 "Couldn't unlink index: $gs->{index}: $!\n";
4271 }
4272 my $pool = SVN::Pool->new;
4273 $editor->set_path_strip($path);
4274 my (@pc) = split m#/#, $path;
4275 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
4276 1, $editor, $pool);
4277 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4278
4279 # Since we can't rely on svn_ra_reparent being available, we'll
4280 # just have to do some magic with set_path to make it so
4281 # we only want a partial path.
4282 my $sp = '';
4283 my $final = join('/', @pc);
4284 while (@pc) {
4285 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
4286 $sp .= '/' if length $sp;
4287 $sp .= shift @pc;
4288 }
4289 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
4290
4291 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
4292
4293 $reporter->finish_report($pool);
4294 $pool->clear;
4295 $editor->{git_commit_ok};
4296 }
4297
4298 # this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
4299 # svn_ra_reparent didn't work before 1.4)
4300 sub gs_do_switch {
4301 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
4302 my $path = $gs->{path};
4303 my $pool = SVN::Pool->new;
4304
4305 my $full_url = $self->{url};
4306 my $old_url = $full_url;
4307 $full_url .= '/' . escape_uri_only($path) if length $path;
4308 my ($ra, $reparented);
4309
4310 if ($old_url =~ m#^svn(\+ssh)?://#) {
4311 $_[0] = undef;
4312 $self = undef;
4313 $RA = undef;
4314 $ra = Git::SVN::Ra->new($full_url);
4315 $ra_invalid = 1;
4316 } elsif ($old_url ne $full_url) {
4317 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool);
4318 $self->{url} = $full_url;
4319 $reparented = 1;
4320 }
4321
4322 $ra ||= $self;
4323 $url_b = escape_url($url_b);
4324 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
4325 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
4326 $reporter->set_path('', $rev_a, 0, @lock, $pool);
4327 $reporter->finish_report($pool);
4328
4329 if ($reparented) {
4330 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
4331 $self->{url} = $old_url;
4332 }
4333
4334 $pool->clear;
4335 $editor->{git_commit_ok};
4336 }
4337
4338 sub longest_common_path {
4339 my ($gsv, $globs) = @_;
4340 my %common;
4341 my $common_max = scalar @$gsv;
4342
4343 foreach my $gs (@$gsv) {
4344 my @tmp = split m#/#, $gs->{path};
4345 my $p = '';
4346 foreach (@tmp) {
4347 $p .= length($p) ? "/$_" : $_;
4348 $common{$p} ||= 0;
4349 $common{$p}++;
4350 }
4351 }
4352 $globs ||= [];
4353 $common_max += scalar @$globs;
4354 foreach my $glob (@$globs) {
4355 my @tmp = split m#/#, $glob->{path}->{left};
4356 my $p = '';
4357 foreach (@tmp) {
4358 $p .= length($p) ? "/$_" : $_;
4359 $common{$p} ||= 0;
4360 $common{$p}++;
4361 }
4362 }
4363
4364 my $longest_path = '';
4365 foreach (sort {length $b <=> length $a} keys %common) {
4366 if ($common{$_} == $common_max) {
4367 $longest_path = $_;
4368 last;
4369 }
4370 }
4371 $longest_path;
4372 }
4373
4374 sub gs_fetch_loop_common {
4375 my ($self, $base, $head, $gsv, $globs) = @_;
4376 return if ($base > $head);
4377 my $inc = $_log_window_size;
4378 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
4379 my $longest_path = longest_common_path($gsv, $globs);
4380 my $ra_url = $self->{url};
4381 while (1) {
4382 my %revs;
4383 my $err;
4384 my $err_handler = $SVN::Error::handler;
4385 $SVN::Error::handler = sub {
4386 ($err) = @_;
4387 skip_unknown_revs($err);
4388 };
4389 sub _cb {
4390 my ($paths, $r, $author, $date, $log) = @_;
4391 [ dup_changed_paths($paths),
4392 { author => $author, date => $date, log => $log } ];
4393 }
4394 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
4395 sub { $revs{$_[1]} = _cb(@_) });
4396 if ($err) {
4397 print "Checked through r$max\r";
4398 }
4399 if ($err && $max >= $head) {
4400 print STDERR "Path '$longest_path' ",
4401 "was probably deleted:\n",
4402 $err->expanded_message,
4403 "\nWill attempt to follow ",
4404 "revisions r$min .. r$max ",
4405 "committed before the deletion\n";
4406 my $hi = $max;
4407 while (--$hi >= $min) {
4408 my $ok;
4409 $self->get_log([$longest_path], $min, $hi,
4410 0, 1, 1, sub {
4411 $ok ||= $_[1];
4412 $revs{$_[1]} = _cb(@_) });
4413 if ($ok) {
4414 print STDERR "r$min .. r$ok OK\n";
4415 last;
4416 }
4417 }
4418 }
4419 $SVN::Error::handler = $err_handler;
4420
4421 my %exists = map { $_->{path} => $_ } @$gsv;
4422 foreach my $r (sort {$a <=> $b} keys %revs) {
4423 my ($paths, $logged) = @{$revs{$r}};
4424
4425 foreach my $gs ($self->match_globs(\%exists, $paths,
4426 $globs, $r)) {
4427 if ($gs->rev_map_max >= $r) {
4428 next;
4429 }
4430 next unless $gs->match_paths($paths, $r);
4431 $gs->{logged_rev_props} = $logged;
4432 if (my $last_commit = $gs->last_commit) {
4433 $gs->assert_index_clean($last_commit);
4434 }
4435 my $log_entry = $gs->do_fetch($paths, $r);
4436 if ($log_entry) {
4437 $gs->do_git_commit($log_entry);
4438 }
4439 $INDEX_FILES{$gs->{index}} = 1;
4440 }
4441 foreach my $g (@$globs) {
4442 my $k = "svn-remote.$g->{remote}." .
4443 "$g->{t}-maxRev";
4444 Git::SVN::tmp_config($k, $r);
4445 }
4446 if ($ra_invalid) {
4447 $_[0] = undef;
4448 $self = undef;
4449 $RA = undef;
4450 $self = Git::SVN::Ra->new($ra_url);
4451 $ra_invalid = undef;
4452 }
4453 }
4454 # pre-fill the .rev_db since it'll eventually get filled in
4455 # with '0' x40 if something new gets committed
4456 foreach my $gs (@$gsv) {
4457 next if $gs->rev_map_max >= $max;
4458 next if defined $gs->rev_map_get($max);
4459 $gs->rev_map_set($max, 0 x40);
4460 }
4461 foreach my $g (@$globs) {
4462 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
4463 Git::SVN::tmp_config($k, $max);
4464 }
4465 last if $max >= $head;
4466 $min = $max + 1;
4467 $max += $inc;
4468 $max = $head if ($max > $head);
4469 }
4470 Git::SVN::gc();
4471 }
4472
4473 sub get_dir_globbed {
4474 my ($self, $left, $depth, $r) = @_;
4475
4476 my @x = eval { $self->get_dir($left, $r) };
4477 return unless scalar @x == 3;
4478 my $dirents = $x[0];
4479 my @finalents;
4480 foreach my $de (keys %$dirents) {
4481 next if $dirents->{$de}->{kind} != $SVN::Node::dir;
4482 if ($depth > 1) {
4483 my @args = ("$left/$de", $depth - 1, $r);
4484 foreach my $dir ($self->get_dir_globbed(@args)) {
4485 push @finalents, "$de/$dir";
4486 }
4487 } else {
4488 push @finalents, $de;
4489 }
4490 }
4491 @finalents;
4492 }
4493
4494 sub match_globs {
4495 my ($self, $exists, $paths, $globs, $r) = @_;
4496
4497 sub get_dir_check {
4498 my ($self, $exists, $g, $r) = @_;
4499
4500 my @dirs = $self->get_dir_globbed($g->{path}->{left},
4501 $g->{path}->{depth},
4502 $r);
4503
4504 foreach my $de (@dirs) {
4505 my $p = $g->{path}->full_path($de);
4506 next if $exists->{$p};
4507 next if (length $g->{path}->{right} &&
4508 ($self->check_path($p, $r) !=
4509 $SVN::Node::dir));
4510 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
4511 $g->{ref}->full_path($de), 1);
4512 }
4513 }
4514 foreach my $g (@$globs) {
4515 if (my $path = $paths->{"/$g->{path}->{left}"}) {
4516 if ($path->{action} =~ /^[AR]$/) {
4517 get_dir_check($self, $exists, $g, $r);
4518 }
4519 }
4520 foreach (keys %$paths) {
4521 if (/$g->{path}->{left_regex}/ &&
4522 !/$g->{path}->{regex}/) {
4523 next if $paths->{$_}->{action} !~ /^[AR]$/;
4524 get_dir_check($self, $exists, $g, $r);
4525 }
4526 next unless /$g->{path}->{regex}/;
4527 my $p = $1;
4528 my $pathname = $g->{path}->full_path($p);
4529 next if $exists->{$pathname};
4530 next if ($self->check_path($pathname, $r) !=
4531 $SVN::Node::dir);
4532 $exists->{$pathname} = Git::SVN->init(
4533 $self->{url}, $pathname, undef,
4534 $g->{ref}->full_path($p), 1);
4535 }
4536 my $c = '';
4537 foreach (split m#/#, $g->{path}->{left}) {
4538 $c .= "/$_";
4539 next unless ($paths->{$c} &&
4540 ($paths->{$c}->{action} =~ /^[AR]$/));
4541 get_dir_check($self, $exists, $g, $r);
4542 }
4543 }
4544 values %$exists;
4545 }
4546
4547 sub minimize_url {
4548 my ($self) = @_;
4549 return $self->{url} if ($self->{url} eq $self->{repos_root});
4550 my $url = $self->{repos_root};
4551 my @components = split(m!/!, $self->{svn_path});
4552 my $c = '';
4553 do {
4554 $url .= "/$c" if length $c;
4555 eval { (ref $self)->new($url)->get_latest_revnum };
4556 } while ($@ && ($c = shift @components));
4557 $url;
4558 }
4559
4560 sub can_do_switch {
4561 my $self = shift;
4562 unless (defined $can_do_switch) {
4563 my $pool = SVN::Pool->new;
4564 my $rep = eval {
4565 $self->do_switch(1, '', 0, $self->{url},
4566 SVN::Delta::Editor->new, $pool);
4567 };
4568 if ($@) {
4569 $can_do_switch = 0;
4570 } else {
4571 $rep->abort_report($pool);
4572 $can_do_switch = 1;
4573 }
4574 $pool->clear;
4575 }
4576 $can_do_switch;
4577 }
4578
4579 sub skip_unknown_revs {
4580 my ($err) = @_;
4581 my $errno = $err->apr_err();
4582 # Maybe the branch we're tracking didn't
4583 # exist when the repo started, so it's
4584 # not an error if it doesn't, just continue
4585 #
4586 # Wonderfully consistent library, eh?
4587 # 160013 - svn:// and file://
4588 # 175002 - http(s)://
4589 # 175007 - http(s):// (this repo required authorization, too...)
4590 # More codes may be discovered later...
4591 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
4592 my $err_key = $err->expanded_message;
4593 # revision numbers change every time, filter them out
4594 $err_key =~ s/\d+/\0/g;
4595 $err_key = "$errno\0$err_key";
4596 unless ($ignored_err{$err_key}) {
4597 warn "W: Ignoring error from SVN, path probably ",
4598 "does not exist: ($errno): ",
4599 $err->expanded_message,"\n";
4600 warn "W: Do not be alarmed at the above message ",
4601 "git-svn is just searching aggressively for ",
4602 "old history.\n",
4603 "This may take a while on large repositories\n";
4604 $ignored_err{$err_key} = 1;
4605 }
4606 return;
4607 }
4608 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
4609 }
4610
4611 # svn_log_changed_path_t objects passed to get_log are likely to be
4612 # overwritten even if only the refs are copied to an external variable,
4613 # so we should dup the structures in their entirety. Using an externally
4614 # passed pool (instead of our temporary and quickly cleared pool in
4615 # Git::SVN::Ra) does not help matters at all...
4616 sub dup_changed_paths {
4617 my ($paths) = @_;
4618 return undef unless $paths;
4619 my %ret;
4620 foreach my $p (keys %$paths) {
4621 my $i = $paths->{$p};
4622 my %s = map { $_ => $i->$_ }
4623 qw/copyfrom_path copyfrom_rev action/;
4624 $ret{$p} = \%s;
4625 }
4626 \%ret;
4627 }
4628
4629 package Git::SVN::Log;
4630 use strict;
4631 use warnings;
4632 use POSIX qw/strftime/;
4633 use Time::Local;
4634 use constant commit_log_separator => ('-' x 72) . "\n";
4635 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
4636 %rusers $show_commit $incremental/;
4637 my $l_fmt;
4638
4639 sub cmt_showable {
4640 my ($c) = @_;
4641 return 1 if defined $c->{r};
4642
4643 # big commit message got truncated by the 16k pretty buffer in rev-list
4644 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
4645 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
4646 @{$c->{l}} = ();
4647 my @log = command(qw/cat-file commit/, $c->{c});
4648
4649 # shift off the headers
4650 shift @log while ($log[0] ne '');
4651 shift @log;
4652
4653 # TODO: make $c->{l} not have a trailing newline in the future
4654 @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
4655
4656 (undef, $c->{r}, undef) = ::extract_metadata(
4657 (grep(/^git-svn-id: /, @log))[-1]);
4658 }
4659 return defined $c->{r};
4660 }
4661
4662 sub log_use_color {
4663 return $color || Git->repository->get_colorbool('color.diff');
4664 }
4665
4666 sub git_svn_log_cmd {
4667 my ($r_min, $r_max, @args) = @_;
4668 my $head = 'HEAD';
4669 my (@files, @log_opts);
4670 foreach my $x (@args) {
4671 if ($x eq '--' || @files) {
4672 push @files, $x;
4673 } else {
4674 if (::verify_ref("$x^0")) {
4675 $head = $x;
4676 } else {
4677 push @log_opts, $x;
4678 }
4679 }
4680 }
4681
4682 my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
4683 $gs ||= Git::SVN->_new;
4684 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
4685 $gs->refname);
4686 push @cmd, '-r' unless $non_recursive;
4687 push @cmd, qw/--raw --name-status/ if $verbose;
4688 push @cmd, '--color' if log_use_color();
4689 push @cmd, @log_opts;
4690 if (defined $r_max && $r_max == $r_min) {
4691 push @cmd, '--max-count=1';
4692 if (my $c = $gs->rev_map_get($r_max)) {
4693 push @cmd, $c;
4694 }
4695 } elsif (defined $r_max) {
4696 if ($r_max < $r_min) {
4697 ($r_min, $r_max) = ($r_max, $r_min);
4698 }
4699 my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
4700 my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
4701 # If there are no commits in the range, both $c_max and $c_min
4702 # will be undefined. If there is at least 1 commit in the
4703 # range, both will be defined.
4704 return () if !defined $c_min || !defined $c_max;
4705 if ($c_min eq $c_max) {
4706 push @cmd, '--max-count=1', $c_min;
4707 } else {
4708 push @cmd, '--boundary', "$c_min..$c_max";
4709 }
4710 }
4711 return (@cmd, @files);
4712 }
4713
4714 # adapted from pager.c
4715 sub config_pager {
4716 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
4717 if (!defined $pager) {
4718 $pager = 'less';
4719 } elsif (length $pager == 0 || $pager eq 'cat') {
4720 $pager = undef;
4721 }
4722 $ENV{GIT_PAGER_IN_USE} = defined($pager);
4723 }
4724
4725 sub run_pager {
4726 return unless -t *STDOUT && defined $pager;
4727 pipe my ($rfd, $wfd) or return;
4728 defined(my $pid = fork) or ::fatal "Can't fork: $!";
4729 if (!$pid) {
4730 open STDOUT, '>&', $wfd or
4731 ::fatal "Can't redirect to stdout: $!";
4732 return;
4733 }
4734 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!";
4735 $ENV{LESS} ||= 'FRSX';
4736 exec $pager or ::fatal "Can't run pager: $! ($pager)";
4737 }
4738
4739 sub format_svn_date {
4740 # some systmes don't handle or mishandle %z, so be creative.
4741 my $t = shift || time;
4742 my $gm = timelocal(gmtime($t));
4743 my $sign = qw( + + - )[ $t <=> $gm ];
4744 my $gmoff = sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
4745 return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t));
4746 }
4747
4748 sub parse_git_date {
4749 my ($t, $tz) = @_;
4750 # Date::Parse isn't in the standard Perl distro :(
4751 if ($tz =~ s/^\+//) {
4752 $t += tz_to_s_offset($tz);
4753 } elsif ($tz =~ s/^\-//) {
4754 $t -= tz_to_s_offset($tz);
4755 }
4756 return $t;
4757 }
4758
4759 sub set_local_timezone {
4760 if (defined $TZ) {
4761 $ENV{TZ} = $TZ;
4762 } else {
4763 delete $ENV{TZ};
4764 }
4765 }
4766
4767 sub tz_to_s_offset {
4768 my ($tz) = @_;
4769 $tz =~ s/(\d\d)$//;
4770 return ($1 * 60) + ($tz * 3600);
4771 }
4772
4773 sub get_author_info {
4774 my ($dest, $author, $t, $tz) = @_;
4775 $author =~ s/(?:^\s*|\s*$)//g;
4776 $dest->{a_raw} = $author;
4777 my $au;
4778 if ($::_authors) {
4779 $au = $rusers{$author} || undef;
4780 }
4781 if (!$au) {
4782 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
4783 }
4784 $dest->{t} = $t;
4785 $dest->{tz} = $tz;
4786 $dest->{a} = $au;
4787 $dest->{t_utc} = parse_git_date($t, $tz);
4788 }
4789
4790 sub process_commit {
4791 my ($c, $r_min, $r_max, $defer) = @_;
4792 if (defined $r_min && defined $r_max) {
4793 if ($r_min == $c->{r} && $r_min == $r_max) {
4794 show_commit($c);
4795 return 0;
4796 }
4797 return 1 if $r_min == $r_max;
4798 if ($r_min < $r_max) {
4799 # we need to reverse the print order
4800 return 0 if (defined $limit && --$limit < 0);
4801 push @$defer, $c;
4802 return 1;
4803 }
4804 if ($r_min != $r_max) {
4805 return 1 if ($r_min < $c->{r});
4806 return 1 if ($r_max > $c->{r});
4807 }
4808 }
4809 return 0 if (defined $limit && --$limit < 0);
4810 show_commit($c);
4811 return 1;
4812 }
4813
4814 sub show_commit {
4815 my $c = shift;
4816 if ($oneline) {
4817 my $x = "\n";
4818 if (my $l = $c->{l}) {
4819 while ($l->[0] =~ /^\s*$/) { shift @$l }
4820 $x = $l->[0];
4821 }
4822 $l_fmt ||= 'A' . length($c->{r});
4823 print 'r',pack($l_fmt, $c->{r}),' | ';
4824 print "$c->{c} | " if $show_commit;
4825 print $x;
4826 } else {
4827 show_commit_normal($c);
4828 }
4829 }
4830
4831 sub show_commit_changed_paths {
4832 my ($c) = @_;
4833 return unless $c->{changed};
4834 print "Changed paths:\n", @{$c->{changed}};
4835 }
4836
4837 sub show_commit_normal {
4838 my ($c) = @_;
4839 print commit_log_separator, "r$c->{r} | ";
4840 print "$c->{c} | " if $show_commit;
4841 print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
4842 my $nr_line = 0;
4843
4844 if (my $l = $c->{l}) {
4845 while ($l->[$#$l] eq "\n" && $#$l > 0
4846 && $l->[($#$l - 1)] eq "\n") {
4847 pop @$l;
4848 }
4849 $nr_line = scalar @$l;
4850 if (!$nr_line) {
4851 print "1 line\n\n\n";
4852 } else {
4853 if ($nr_line == 1) {
4854 $nr_line = '1 line';
4855 } else {
4856 $nr_line .= ' lines';
4857 }
4858 print $nr_line, "\n";
4859 show_commit_changed_paths($c);
4860 print "\n";
4861 print $_ foreach @$l;
4862 }
4863 } else {
4864 print "1 line\n";
4865 show_commit_changed_paths($c);
4866 print "\n";
4867
4868 }
4869 foreach my $x (qw/raw stat diff/) {
4870 if ($c->{$x}) {
4871 print "\n";
4872 print $_ foreach @{$c->{$x}}
4873 }
4874 }
4875 }
4876
4877 sub cmd_show_log {
4878 my (@args) = @_;
4879 my ($r_min, $r_max);
4880 my $r_last = -1; # prevent dupes
4881 set_local_timezone();
4882 if (defined $::_revision) {
4883 if ($::_revision =~ /^(\d+):(\d+)$/) {
4884 ($r_min, $r_max) = ($1, $2);
4885 } elsif ($::_revision =~ /^\d+$/) {
4886 $r_min = $r_max = $::_revision;
4887 } else {
4888 ::fatal "-r$::_revision is not supported, use ",
4889 "standard 'git log' arguments instead";
4890 }
4891 }
4892
4893 config_pager();
4894 @args = git_svn_log_cmd($r_min, $r_max, @args);
4895 if (!@args) {
4896 print commit_log_separator unless $incremental || $oneline;
4897 return;
4898 }
4899 my $log = command_output_pipe(@args);
4900 run_pager();
4901 my (@k, $c, $d, $stat);
4902 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
4903 while (<$log>) {
4904 if (/^${esc_color}commit -?($::sha1_short)/o) {
4905 my $cmt = $1;
4906 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
4907 $r_last = $c->{r};
4908 process_commit($c, $r_min, $r_max, \@k) or
4909 goto out;
4910 }
4911 $d = undef;
4912 $c = { c => $cmt };
4913 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
4914 get_author_info($c, $1, $2, $3);
4915 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
4916 # ignore
4917 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
4918 push @{$c->{raw}}, $_;
4919 } elsif (/^${esc_color}[ACRMDT]\t/) {
4920 # we could add $SVN->{svn_path} here, but that requires
4921 # remote access at the moment (repo_path_split)...
4922 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
4923 push @{$c->{changed}}, $_;
4924 } elsif (/^${esc_color}diff /o) {
4925 $d = 1;
4926 push @{$c->{diff}}, $_;
4927 } elsif ($d) {
4928 push @{$c->{diff}}, $_;
4929 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
4930 $esc_color*[\+\-]*$esc_color$/x) {
4931 $stat = 1;
4932 push @{$c->{stat}}, $_;
4933 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
4934 push @{$c->{stat}}, $_;
4935 $stat = undef;
4936 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
4937 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
4938 } elsif (s/^${esc_color} //o) {
4939 push @{$c->{l}}, $_;
4940 }
4941 }
4942 if ($c && defined $c->{r} && $c->{r} != $r_last) {
4943 $r_last = $c->{r};
4944 process_commit($c, $r_min, $r_max, \@k);
4945 }
4946 if (@k) {
4947 ($r_min, $r_max) = ($r_max, $r_min);
4948 process_commit($_, $r_min, $r_max) foreach reverse @k;
4949 }
4950 out:
4951 close $log;
4952 print commit_log_separator unless $incremental || $oneline;
4953 }
4954
4955 sub cmd_blame {
4956 my $path = pop;
4957
4958 config_pager();
4959 run_pager();
4960
4961 my ($fh, $ctx, $rev);
4962
4963 if ($_git_format) {
4964 ($fh, $ctx) = command_output_pipe('blame', @_, $path);
4965 while (my $line = <$fh>) {
4966 if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
4967 # Uncommitted edits show up as a rev ID of
4968 # all zeros, which we can't look up with
4969 # cmt_metadata
4970 if ($1 !~ /^0+$/) {
4971 (undef, $rev, undef) =
4972 ::cmt_metadata($1);
4973 $rev = '0' if (!$rev);
4974 } else {
4975 $rev = '0';
4976 }
4977 $rev = sprintf('%-10s', $rev);
4978 $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
4979 }
4980 print $line;
4981 }
4982 } else {
4983 ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
4984 '--', $path);
4985 my ($sha1);
4986 my %authors;
4987 while (my $line = <$fh>) {
4988 if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
4989 $sha1 = $1;
4990 (undef, $rev, undef) = ::cmt_metadata($1);
4991 $rev = '0' if (!$rev);
4992 }
4993 elsif ($line =~ /^author (.*)/) {
4994 $authors{$rev} = $1;
4995 $authors{$rev} =~ s/\s/_/g;
4996 }
4997 elsif ($line =~ /^\t(.*)$/) {
4998 printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
4999 }
5000 }
5001 }
5002 command_close_pipe($fh, $ctx);
5003 }
5004
5005 package Git::SVN::Migration;
5006 # these version numbers do NOT correspond to actual version numbers
5007 # of git nor git-svn. They are just relative.
5008 #
5009 # v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
5010 #
5011 # v1 layout: .git/$id/info/url, refs/remotes/$id
5012 #
5013 # v2 layout: .git/svn/$id/info/url, refs/remotes/$id
5014 #
5015 # v3 layout: .git/svn/$id, refs/remotes/$id
5016 # - info/url may remain for backwards compatibility
5017 # - this is what we migrate up to this layout automatically,
5018 # - this will be used by git svn init on single branches
5019 # v3.1 layout (auto migrated):
5020 # - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
5021 # for backwards compatibility
5022 #
5023 # v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
5024 # - this is only created for newly multi-init-ed
5025 # repositories. Similar in spirit to the
5026 # --use-separate-remotes option in git-clone (now default)
5027 # - we do not automatically migrate to this (following
5028 # the example set by core git)
5029 #
5030 # v5 layout: .rev_db.$UUID => .rev_map.$UUID
5031 # - newer, more-efficient format that uses 24-bytes per record
5032 # with no filler space.
5033 # - use xxd -c24 < .rev_map.$UUID to view and debug
5034 # - This is a one-way migration, repositories updated to the
5035 # new format will not be able to use old git-svn without
5036 # rebuilding the .rev_db. Rebuilding the rev_db is not
5037 # possible if noMetadata or useSvmProps are set; but should
5038 # be no problem for users that use the (sensible) defaults.
5039 use strict;
5040 use warnings;
5041 use Carp qw/croak/;
5042 use File::Path qw/mkpath/;
5043 use File::Basename qw/dirname basename/;
5044 use vars qw/$_minimize/;
5045
5046 sub migrate_from_v0 {
5047 my $git_dir = $ENV{GIT_DIR};
5048 return undef unless -d $git_dir;
5049 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5050 my $migrated = 0;
5051 while (<$fh>) {
5052 chomp;
5053 my ($id, $orig_ref) = ($_, $_);
5054 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
5055 next unless -f "$git_dir/$id/info/url";
5056 my $new_ref = "refs/remotes/$id";
5057 if (::verify_ref("$new_ref^0")) {
5058 print STDERR "W: $orig_ref is probably an old ",
5059 "branch used by an ancient version of ",
5060 "git-svn.\n",
5061 "However, $new_ref also exists.\n",
5062 "We will not be able ",
5063 "to use this branch until this ",
5064 "ambiguity is resolved.\n";
5065 next;
5066 }
5067 print STDERR "Migrating from v0 layout...\n" if !$migrated;
5068 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
5069 command_noisy('update-ref', $new_ref, $orig_ref);
5070 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
5071 $migrated++;
5072 }
5073 command_close_pipe($fh, $ctx);
5074 print STDERR "Done migrating from v0 layout...\n" if $migrated;
5075 $migrated;
5076 }
5077
5078 sub migrate_from_v1 {
5079 my $git_dir = $ENV{GIT_DIR};
5080 my $migrated = 0;
5081 return $migrated unless -d $git_dir;
5082 my $svn_dir = "$git_dir/svn";
5083
5084 # just in case somebody used 'svn' as their $id at some point...
5085 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
5086
5087 print STDERR "Migrating from a git-svn v1 layout...\n";
5088 mkpath([$svn_dir]);
5089 print STDERR "Data from a previous version of git-svn exists, but\n\t",
5090 "$svn_dir\n\t(required for this version ",
5091 "($::VERSION) of git-svn) does not exist.\n";
5092 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
5093 while (<$fh>) {
5094 my $x = $_;
5095 next unless $x =~ s#^refs/remotes/##;
5096 chomp $x;
5097 next unless -f "$git_dir/$x/info/url";
5098 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
5099 next unless $u;
5100 my $dn = dirname("$git_dir/svn/$x");
5101 mkpath([$dn]) unless -d $dn;
5102 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
5103 mkpath(["$git_dir/svn/svn"]);
5104 print STDERR " - $git_dir/$x/info => ",
5105 "$git_dir/svn/$x/info\n";
5106 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
5107 croak "$!: $x";
5108 # don't worry too much about these, they probably
5109 # don't exist with repos this old (save for index,
5110 # and we can easily regenerate that)
5111 foreach my $f (qw/unhandled.log index .rev_db/) {
5112 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
5113 }
5114 } else {
5115 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
5116 rename "$git_dir/$x", "$git_dir/svn/$x" or
5117 croak "$!: $x";
5118 }
5119 $migrated++;
5120 }
5121 command_close_pipe($fh, $ctx);
5122 print STDERR "Done migrating from a git-svn v1 layout\n";
5123 $migrated;
5124 }
5125
5126 sub read_old_urls {
5127 my ($l_map, $pfx, $path) = @_;
5128 my @dir;
5129 foreach (<$path/*>) {
5130 if (-r "$_/info/url") {
5131 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
5132 my $ref_id = $pfx . basename $_;
5133 my $url = ::file_to_s("$_/info/url");
5134 $l_map->{$ref_id} = $url;
5135 } elsif (-d $_) {
5136 push @dir, $_;
5137 }
5138 }
5139 foreach (@dir) {
5140 my $x = $_;
5141 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
5142 read_old_urls($l_map, $x, $_);
5143 }
5144 }
5145
5146 sub migrate_from_v2 {
5147 my @cfg = command(qw/config -l/);
5148 return if grep /^svn-remote\..+\.url=/, @cfg;
5149 my %l_map;
5150 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
5151 my $migrated = 0;
5152
5153 foreach my $ref_id (sort keys %l_map) {
5154 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
5155 if ($@) {
5156 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
5157 }
5158 $migrated++;
5159 }
5160 $migrated;
5161 }
5162
5163 sub minimize_connections {
5164 my $r = Git::SVN::read_all_remotes();
5165 my $new_urls = {};
5166 my $root_repos = {};
5167 foreach my $repo_id (keys %$r) {
5168 my $url = $r->{$repo_id}->{url} or next;
5169 my $fetch = $r->{$repo_id}->{fetch} or next;
5170 my $ra = Git::SVN::Ra->new($url);
5171
5172 # skip existing cases where we already connect to the root
5173 if (($ra->{url} eq $ra->{repos_root}) ||
5174 ($ra->{repos_root} eq $repo_id)) {
5175 $root_repos->{$ra->{url}} = $repo_id;
5176 next;
5177 }
5178
5179 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
5180 my $root_path = $ra->{url};
5181 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
5182 foreach my $path (keys %$fetch) {
5183 my $ref_id = $fetch->{$path};
5184 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
5185
5186 # make sure we can read when connecting to
5187 # a higher level of a repository
5188 my ($last_rev, undef) = $gs->last_rev_commit;
5189 if (!defined $last_rev) {
5190 $last_rev = eval {
5191 $root_ra->get_latest_revnum;
5192 };
5193 next if $@;
5194 }
5195 my $new = $root_path;
5196 $new .= length $path ? "/$path" : '';
5197 eval {
5198 $root_ra->get_log([$new], $last_rev, $last_rev,
5199 0, 0, 1, sub { });
5200 };
5201 next if $@;
5202 $new_urls->{$ra->{repos_root}}->{$new} =
5203 { ref_id => $ref_id,
5204 old_repo_id => $repo_id,
5205 old_path => $path };
5206 }
5207 }
5208
5209 my @emptied;
5210 foreach my $url (keys %$new_urls) {
5211 # see if we can re-use an existing [svn-remote "repo_id"]
5212 # instead of creating a(n ugly) new section:
5213 my $repo_id = $root_repos->{$url} || $url;
5214
5215 my $fetch = $new_urls->{$url};
5216 foreach my $path (keys %$fetch) {
5217 my $x = $fetch->{$path};
5218 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
5219 my $pfx = "svn-remote.$x->{old_repo_id}";
5220
5221 my $old_fetch = quotemeta("$x->{old_path}:".
5222 "refs/remotes/$x->{ref_id}");
5223 command_noisy(qw/config --unset/,
5224 "$pfx.fetch", '^'. $old_fetch . '$');
5225 delete $r->{$x->{old_repo_id}}->
5226 {fetch}->{$x->{old_path}};
5227 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
5228 command_noisy(qw/config --unset/,
5229 "$pfx.url");
5230 push @emptied, $x->{old_repo_id}
5231 }
5232 }
5233 }
5234 if (@emptied) {
5235 my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config";
5236 print STDERR <<EOF;
5237 The following [svn-remote] sections in your config file ($file) are empty
5238 and can be safely removed:
5239 EOF
5240 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
5241 }
5242 }
5243
5244 sub migration_check {
5245 migrate_from_v0();
5246 migrate_from_v1();
5247 migrate_from_v2();
5248 minimize_connections() if $_minimize;
5249 }
5250
5251 package Git::IndexInfo;
5252 use strict;
5253 use warnings;
5254 use Git qw/command_input_pipe command_close_pipe/;
5255
5256 sub new {
5257 my ($class) = @_;
5258 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
5259 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
5260 }
5261
5262 sub remove {
5263 my ($self, $path) = @_;
5264 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
5265 return ++$self->{nr};
5266 }
5267 undef;
5268 }
5269
5270 sub update {
5271 my ($self, $mode, $hash, $path) = @_;
5272 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
5273 return ++$self->{nr};
5274 }
5275 undef;
5276 }
5277
5278 sub DESTROY {
5279 my ($self) = @_;
5280 command_close_pipe($self->{gui}, $self->{ctx});
5281 }
5282
5283 package Git::SVN::GlobSpec;
5284 use strict;
5285 use warnings;
5286
5287 sub new {
5288 my ($class, $glob) = @_;
5289 my $re = $glob;
5290 $re =~ s!/+$!!g; # no need for trailing slashes
5291 $re =~ m!^([^*]*)(\*(?:/\*)*)([^*]*)$!;
5292 my $temp = $re;
5293 my ($left, $right) = ($1, $3);
5294 $re = $2;
5295 my $depth = $re =~ tr/*/*/;
5296 if ($depth != $temp =~ tr/*/*/) {
5297 die "Only one set of wildcard directories " .
5298 "(e.g. '*' or '*/*/*') is supported: '$glob'\n";
5299 }
5300 if ($depth == 0) {
5301 die "One '*' is needed for glob: '$glob'\n";
5302 }
5303 $re =~ s!\*!\[^/\]*!g;
5304 $re = quotemeta($left) . "($re)" . quotemeta($right);
5305 if (length $left && !($left =~ s!/+$!!g)) {
5306 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
5307 }
5308 if (length $right && !($right =~ s!^/+!!g)) {
5309 die "Missing leading '/' on right side of: '$glob' ($right)\n";
5310 }
5311 my $left_re = qr/^\/\Q$left\E(\/|$)/;
5312 bless { left => $left, right => $right, left_regex => $left_re,
5313 regex => qr/$re/, glob => $glob, depth => $depth }, $class;
5314 }
5315
5316 sub full_path {
5317 my ($self, $path) = @_;
5318 return (length $self->{left} ? "$self->{left}/" : '') .
5319 $path . (length $self->{right} ? "/$self->{right}" : '');
5320 }
5321
5322 __END__
5323
5324 Data structures:
5325
5326
5327 $remotes = { # returned by read_all_remotes()
5328 'svn' => {
5329 # svn-remote.svn.url=https://svn.musicpd.org
5330 url => 'https://svn.musicpd.org',
5331 # svn-remote.svn.fetch=mpd/trunk:trunk
5332 fetch => {
5333 'mpd/trunk' => 'trunk',
5334 },
5335 # svn-remote.svn.tags=mpd/tags/*:tags/*
5336 tags => {
5337 path => {
5338 left => 'mpd/tags',
5339 right => '',
5340 regex => qr!mpd/tags/([^/]+)$!,
5341 glob => 'tags/*',
5342 },
5343 ref => {
5344 left => 'tags',
5345 right => '',
5346 regex => qr!tags/([^/]+)$!,
5347 glob => 'tags/*',
5348 },
5349 }
5350 }
5351 };
5352
5353 $log_entry hashref as returned by libsvn_log_entry()
5354 {
5355 log => 'whitespace-formatted log entry
5356 ', # trailing newline is preserved
5357 revision => '8', # integer
5358 date => '2004-02-24T17:01:44.108345Z', # commit date
5359 author => 'committer name'
5360 };
5361
5362
5363 # this is generated by generate_diff();
5364 @mods = array of diff-index line hashes, each element represents one line
5365 of diff-index output
5366
5367 diff-index line ($m hash)
5368 {
5369 mode_a => first column of diff-index output, no leading ':',
5370 mode_b => second column of diff-index output,
5371 sha1_b => sha1sum of the final blob,
5372 chg => change type [MCRADT],
5373 file_a => original file name of a file (iff chg is 'C' or 'R')
5374 file_b => new/current file name of a file (any chg)
5375 }
5376 ;
5377
5378 # retval of read_url_paths{,_all}();
5379 $l_map = {
5380 # repository root url
5381 'https://svn.musicpd.org' => {
5382 # repository path # GIT_SVN_ID
5383 'mpd/trunk' => 'trunk',
5384 'mpd/tags/0.11.5' => 'tags/0.11.5',
5385 },
5386 }
5387
5388 Notes:
5389 I don't trust the each() function on unless I created %hash myself
5390 because the internal iterator may not have started at base.
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