Merge branch 'lt/case-insensitive'
[git/git.git] / git-svn.perl
1 #!/usr/bin/env perl
2 # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3 # License: GPL v2 or later
4 use warnings;
5 use strict;
6 use vars qw/ $AUTHOR $VERSION
7 $sha1 $sha1_short $_revision
8 $_q $_authors %users/;
9 $AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
10 $VERSION = '@@GIT_VERSION@@';
11
12 # 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 $Git::SVN::_follow_parent = 1;
70 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
71 'config-dir=s' => \$Git::SVN::Ra::config_dir,
72 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache );
73 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
74 'authors-file|A=s' => \$_authors,
75 'repack:i' => \$Git::SVN::_repack,
76 'noMetadata' => \$Git::SVN::_no_metadata,
77 'useSvmProps' => \$Git::SVN::_use_svm_props,
78 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
79 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
80 'no-checkout' => \$_no_checkout,
81 'quiet|q' => \$_q,
82 'repack-flags|repack-args|repack-opts=s' =>
83 \$Git::SVN::_repack_flags,
84 'use-log-author' => \$Git::SVN::_use_log_author,
85 %remote_opts );
86
87 my ($_trunk, $_tags, $_branches, $_stdlayout);
88 my %icv;
89 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
90 'trunk|T=s' => \$_trunk, 'tags|t=s' => \$_tags,
91 'branches|b=s' => \$_branches, 'prefix=s' => \$_prefix,
92 'stdlayout|s' => \$_stdlayout,
93 'minimize-url|m' => \$Git::SVN::_minimize_url,
94 'no-metadata' => sub { $icv{noMetadata} = 1 },
95 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
96 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
97 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
98 %remote_opts );
99 my %cmt_opts = ( 'edit|e' => \$_edit,
100 'rmdir' => \$SVN::Git::Editor::_rmdir,
101 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
102 'l=i' => \$SVN::Git::Editor::_rename_limit,
103 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
104 );
105
106 my %cmd = (
107 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
108 { 'revision|r=s' => \$_revision,
109 'fetch-all|all' => \$_fetch_all,
110 %fc_opts } ],
111 clone => [ \&cmd_clone, "Initialize and fetch revisions",
112 { 'revision|r=s' => \$_revision,
113 %fc_opts, %init_opts } ],
114 init => [ \&cmd_init, "Initialize a repo for tracking" .
115 " (requires URL argument)",
116 \%init_opts ],
117 'multi-init' => [ \&cmd_multi_init,
118 "Deprecated alias for ".
119 "'$0 init -T<trunk> -b<branches> -t<tags>'",
120 \%init_opts ],
121 dcommit => [ \&cmd_dcommit,
122 'Commit several diffs to merge with upstream',
123 { 'merge|m|M' => \$_merge,
124 'strategy|s=s' => \$_strategy,
125 'verbose|v' => \$_verbose,
126 'dry-run|n' => \$_dry_run,
127 'fetch-all|all' => \$_fetch_all,
128 'no-rebase' => \$_no_rebase,
129 %cmt_opts, %fc_opts } ],
130 'set-tree' => [ \&cmd_set_tree,
131 "Set an SVN repository to a git tree-ish",
132 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
133 'create-ignore' => [ \&cmd_create_ignore,
134 'Create a .gitignore per svn:ignore',
135 { 'revision|r=i' => \$_revision
136 } ],
137 'propget' => [ \&cmd_propget,
138 'Print the value of a property on a file or directory',
139 { 'revision|r=i' => \$_revision } ],
140 'proplist' => [ \&cmd_proplist,
141 'List all properties of a file or directory',
142 { 'revision|r=i' => \$_revision } ],
143 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
144 { 'revision|r=i' => \$_revision
145 } ],
146 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
147 { 'revision|r=i' => \$_revision
148 } ],
149 'multi-fetch' => [ \&cmd_multi_fetch,
150 "Deprecated alias for $0 fetch --all",
151 { 'revision|r=s' => \$_revision, %fc_opts } ],
152 'migrate' => [ sub { },
153 # no-op, we automatically run this anyways,
154 'Migrate configuration/metadata/layout from
155 previous versions of git-svn',
156 { 'minimize' => \$Git::SVN::Migration::_minimize,
157 %remote_opts } ],
158 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
159 { 'limit=i' => \$Git::SVN::Log::limit,
160 'revision|r=s' => \$_revision,
161 'verbose|v' => \$Git::SVN::Log::verbose,
162 'incremental' => \$Git::SVN::Log::incremental,
163 'oneline' => \$Git::SVN::Log::oneline,
164 'show-commit' => \$Git::SVN::Log::show_commit,
165 'non-recursive' => \$Git::SVN::Log::non_recursive,
166 'authors-file|A=s' => \$_authors,
167 'color' => \$Git::SVN::Log::color,
168 'pager=s' => \$Git::SVN::Log::pager
169 } ],
170 'find-rev' => [ \&cmd_find_rev, "Translate between SVN revision numbers and tree-ish",
171 {} ],
172 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
173 { 'merge|m|M' => \$_merge,
174 'verbose|v' => \$_verbose,
175 'strategy|s=s' => \$_strategy,
176 'local|l' => \$_local,
177 'fetch-all|all' => \$_fetch_all,
178 %fc_opts } ],
179 'commit-diff' => [ \&cmd_commit_diff,
180 'Commit a diff between two trees',
181 { 'message|m=s' => \$_message,
182 'file|F=s' => \$_file,
183 'revision|r=s' => \$_revision,
184 %cmt_opts } ],
185 'info' => [ \&cmd_info,
186 "Show info about the latest SVN revision
187 on the current branch",
188 { 'url' => \$_url, } ],
189 'blame' => [ \&Git::SVN::Log::cmd_blame,
190 "Show what revision and author last modified each line of a file",
191 {} ],
192 );
193
194 my $cmd;
195 for (my $i = 0; $i < @ARGV; $i++) {
196 if (defined $cmd{$ARGV[$i]}) {
197 $cmd = $ARGV[$i];
198 splice @ARGV, $i, 1;
199 last;
200 }
201 };
202
203 # make sure we're always running at the top-level working directory
204 unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
205 unless (-d $ENV{GIT_DIR}) {
206 if ($git_dir_user_set) {
207 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
208 "but it is not a directory\n";
209 }
210 my $git_dir = delete $ENV{GIT_DIR};
211 chomp(my $cdup = command_oneline(qw/rev-parse --show-cdup/));
212 unless (length $cdup) {
213 die "Already at toplevel, but $git_dir ",
214 "not found '$cdup'\n";
215 }
216 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
217 unless (-d $git_dir) {
218 die "$git_dir still not found after going to ",
219 "'$cdup'\n";
220 }
221 $ENV{GIT_DIR} = $git_dir;
222 }
223 }
224
225 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
226
227 read_repo_config(\%opts);
228 Getopt::Long::Configure('pass_through') if ($cmd && $cmd eq 'log');
229 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
230 'minimize-connections' => \$Git::SVN::Migration::_minimize,
231 'id|i=s' => \$Git::SVN::default_ref_id,
232 'svn-remote|remote|R=s' => sub {
233 $Git::SVN::no_reuse_existing = 1;
234 $Git::SVN::default_repo_id = $_[1] });
235 exit 1 if (!$rv && $cmd && $cmd ne 'log');
236
237 usage(0) if $_help;
238 version() if $_version;
239 usage(1) unless defined $cmd;
240 load_authors() if $_authors;
241
242 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
243 Git::SVN::Migration::migration_check();
244 }
245 Git::SVN::init_vars();
246 eval {
247 Git::SVN::verify_remotes_sanity();
248 $cmd{$cmd}->[0]->(@ARGV);
249 };
250 fatal $@ if $@;
251 post_fetch_checkout();
252 exit 0;
253
254 ####################### primary functions ######################
255 sub usage {
256 my $exit = shift || 0;
257 my $fd = $exit ? \*STDERR : \*STDOUT;
258 print $fd <<"";
259 git-svn - bidirectional operations between a single Subversion tree and git
260 Usage: $0 <command> [options] [arguments]\n
261
262 print $fd "Available commands:\n" unless $cmd;
263
264 foreach (sort keys %cmd) {
265 next if $cmd && $cmd ne $_;
266 next if /^multi-/; # don't show deprecated commands
267 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
268 foreach (sort keys %{$cmd{$_}->[2]}) {
269 # mixed-case options are for .git/config only
270 next if /[A-Z]/ && /^[a-z]+$/i;
271 # prints out arguments as they should be passed:
272 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
273 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
274 "--$_" : "-$_" }
275 split /\|/,$_)," $x\n";
276 }
277 }
278 print $fd <<"";
279 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
280 arbitrary identifier if you're tracking multiple SVN branches/repositories in
281 one git repository and want to keep them separate. See git-svn(1) for more
282 information.
283
284 exit $exit;
285 }
286
287 sub version {
288 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
289 exit 0;
290 }
291
292 sub do_git_init_db {
293 unless (-d $ENV{GIT_DIR}) {
294 my @init_db = ('init');
295 push @init_db, "--template=$_template" if defined $_template;
296 if (defined $_shared) {
297 if ($_shared =~ /[a-z]/) {
298 push @init_db, "--shared=$_shared";
299 } else {
300 push @init_db, "--shared";
301 }
302 }
303 command_noisy(@init_db);
304 }
305 my $set;
306 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
307 foreach my $i (keys %icv) {
308 die "'$set' and '$i' cannot both be set\n" if $set;
309 next unless defined $icv{$i};
310 command_noisy('config', "$pfx.$i", $icv{$i});
311 $set = $i;
312 }
313 }
314
315 sub init_subdir {
316 my $repo_path = shift or return;
317 mkpath([$repo_path]) unless -d $repo_path;
318 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
319 $ENV{GIT_DIR} = '.git';
320 }
321
322 sub cmd_clone {
323 my ($url, $path) = @_;
324 if (!defined $path &&
325 (defined $_trunk || defined $_branches || defined $_tags ||
326 defined $_stdlayout) &&
327 $url !~ m#^[a-z\+]+://#) {
328 $path = $url;
329 }
330 $path = basename($url) if !defined $path || !length $path;
331 cmd_init($url, $path);
332 Git::SVN::fetch_all($Git::SVN::default_repo_id);
333 }
334
335 sub cmd_init {
336 if (defined $_stdlayout) {
337 $_trunk = 'trunk' if (!defined $_trunk);
338 $_tags = 'tags' if (!defined $_tags);
339 $_branches = 'branches' if (!defined $_branches);
340 }
341 if (defined $_trunk || defined $_branches || defined $_tags) {
342 return cmd_multi_init(@_);
343 }
344 my $url = shift or die "SVN repository location required ",
345 "as a command-line argument\n";
346 init_subdir(@_);
347 do_git_init_db();
348
349 Git::SVN->init($url);
350 }
351
352 sub cmd_fetch {
353 if (grep /^\d+=./, @_) {
354 die "'<rev>=<commit>' fetch arguments are ",
355 "no longer supported.\n";
356 }
357 my ($remote) = @_;
358 if (@_ > 1) {
359 die "Usage: $0 fetch [--all] [svn-remote]\n";
360 }
361 $remote ||= $Git::SVN::default_repo_id;
362 if ($_fetch_all) {
363 cmd_multi_fetch();
364 } else {
365 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
366 }
367 }
368
369 sub cmd_set_tree {
370 my (@commits) = @_;
371 if ($_stdin || !@commits) {
372 print "Reading from stdin...\n";
373 @commits = ();
374 while (<STDIN>) {
375 if (/\b($sha1_short)\b/o) {
376 unshift @commits, $1;
377 }
378 }
379 }
380 my @revs;
381 foreach my $c (@commits) {
382 my @tmp = command('rev-parse',$c);
383 if (scalar @tmp == 1) {
384 push @revs, $tmp[0];
385 } elsif (scalar @tmp > 1) {
386 push @revs, reverse(command('rev-list',@tmp));
387 } else {
388 fatal "Failed to rev-parse $c";
389 }
390 }
391 my $gs = Git::SVN->new;
392 my ($r_last, $cmt_last) = $gs->last_rev_commit;
393 $gs->fetch;
394 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
395 fatal "There are new revisions that were fetched ",
396 "and need to be merged (or acknowledged) ",
397 "before committing.\nlast rev: $r_last\n",
398 " current: $gs->{last_rev}";
399 }
400 $gs->set_tree($_) foreach @revs;
401 print "Done committing ",scalar @revs," revisions to SVN\n";
402 unlink $gs->{index};
403 }
404
405 sub cmd_dcommit {
406 my $head = shift;
407 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) }
408 'Cannot dcommit with a dirty index. Commit your changes first, '
409 . "or stash them with `git stash'.\n";
410 $head ||= 'HEAD';
411 my @refs;
412 my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
413 if ($url) {
414 print "Committing to $url ...\n";
415 }
416 unless ($gs) {
417 die "Unable to determine upstream SVN information from ",
418 "$head history.\nPerhaps the repository is empty.";
419 }
420 my $last_rev;
421 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
422 if ($_no_rebase && scalar(@$linear_refs) > 1) {
423 warn "Attempting to commit more than one change while ",
424 "--no-rebase is enabled.\n",
425 "If these changes depend on each other, re-running ",
426 "without --no-rebase may be required."
427 }
428 while (1) {
429 my $d = shift @$linear_refs or last;
430 unless (defined $last_rev) {
431 (undef, $last_rev, undef) = cmt_metadata("$d~1");
432 unless (defined $last_rev) {
433 fatal "Unable to extract revision information ",
434 "from commit $d~1";
435 }
436 }
437 if ($_dry_run) {
438 print "diff-tree $d~1 $d\n";
439 } else {
440 my $cmt_rev;
441 my %ed_opts = ( r => $last_rev,
442 log => get_commit_entry($d)->{log},
443 ra => Git::SVN::Ra->new($gs->full_url),
444 config => SVN::Core::config_get_config(
445 $Git::SVN::Ra::config_dir
446 ),
447 tree_a => "$d~1",
448 tree_b => $d,
449 editor_cb => sub {
450 print "Committed r$_[0]\n";
451 $cmt_rev = $_[0];
452 },
453 svn_path => '');
454 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
455 print "No changes\n$d~1 == $d\n";
456 } elsif ($parents->{$d} && @{$parents->{$d}}) {
457 $gs->{inject_parents_dcommit}->{$cmt_rev} =
458 $parents->{$d};
459 }
460 $_fetch_all ? $gs->fetch_all : $gs->fetch;
461 $last_rev = $cmt_rev;
462 next if $_no_rebase;
463
464 # we always want to rebase against the current HEAD,
465 # not any head that was passed to us
466 my @diff = command('diff-tree', $d,
467 $gs->refname, '--');
468 my @finish;
469 if (@diff) {
470 @finish = rebase_cmd();
471 print STDERR "W: $d and ", $gs->refname,
472 " differ, using @finish:\n",
473 join("\n", @diff), "\n";
474 } else {
475 print "No changes between current HEAD and ",
476 $gs->refname,
477 "\nResetting to the latest ",
478 $gs->refname, "\n";
479 @finish = qw/reset --mixed/;
480 }
481 command_noisy(@finish, $gs->refname);
482 if (@diff) {
483 @refs = ();
484 my ($url_, $rev_, $uuid_, $gs_) =
485 working_head_info($head, \@refs);
486 my ($linear_refs_, $parents_) =
487 linearize_history($gs_, \@refs);
488 if (scalar(@$linear_refs) !=
489 scalar(@$linear_refs_)) {
490 fatal "# of revisions changed ",
491 "\nbefore:\n",
492 join("\n", @$linear_refs),
493 "\n\nafter:\n",
494 join("\n", @$linear_refs_), "\n",
495 'If you are attempting to commit ',
496 "merges, try running:\n\t",
497 'git rebase --interactive',
498 '--preserve-merges ',
499 $gs->refname,
500 "\nBefore dcommitting";
501 }
502 if ($url_ ne $url) {
503 fatal "URL mismatch after rebase: ",
504 "$url_ != $url";
505 }
506 if ($uuid_ ne $uuid) {
507 fatal "uuid mismatch after rebase: ",
508 "$uuid_ != $uuid";
509 }
510 # remap parents
511 my (%p, @l, $i);
512 for ($i = 0; $i < scalar @$linear_refs; $i++) {
513 my $new = $linear_refs_->[$i] or next;
514 $p{$new} =
515 $parents->{$linear_refs->[$i]};
516 push @l, $new;
517 }
518 $parents = \%p;
519 $linear_refs = \@l;
520 }
521 }
522 }
523 unlink $gs->{index};
524 }
525
526 sub cmd_find_rev {
527 my $revision_or_hash = shift or die "SVN or git revision required ",
528 "as a command-line argument\n";
529 my $result;
530 if ($revision_or_hash =~ /^r\d+$/) {
531 my $head = shift;
532 $head ||= 'HEAD';
533 my @refs;
534 my (undef, undef, undef, $gs) = working_head_info($head, \@refs);
535 unless ($gs) {
536 die "Unable to determine upstream SVN information from ",
537 "$head history\n";
538 }
539 my $desired_revision = substr($revision_or_hash, 1);
540 $result = $gs->rev_map_get($desired_revision);
541 } else {
542 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
543 $result = $rev;
544 }
545 print "$result\n" if $result;
546 }
547
548 sub cmd_rebase {
549 command_noisy(qw/update-index --refresh/);
550 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
551 unless ($gs) {
552 die "Unable to determine upstream SVN information from ",
553 "working tree history\n";
554 }
555 if (command(qw/diff-index HEAD --/)) {
556 print STDERR "Cannot rebase with uncommited changes:\n";
557 command_noisy('status');
558 exit 1;
559 }
560 unless ($_local) {
561 # rebase will checkout for us, so no need to do it explicitly
562 $_no_checkout = 'true';
563 $_fetch_all ? $gs->fetch_all : $gs->fetch;
564 }
565 command_noisy(rebase_cmd(), $gs->refname);
566 }
567
568 sub cmd_show_ignore {
569 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
570 $gs ||= Git::SVN->new;
571 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
572 $gs->prop_walk($gs->{path}, $r, sub {
573 my ($gs, $path, $props) = @_;
574 print STDOUT "\n# $path\n";
575 my $s = $props->{'svn:ignore'} or return;
576 $s =~ s/[\r\n]+/\n/g;
577 chomp $s;
578 $s =~ s#^#$path#gm;
579 print STDOUT "$s\n";
580 });
581 }
582
583 sub cmd_show_externals {
584 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
585 $gs ||= Git::SVN->new;
586 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
587 $gs->prop_walk($gs->{path}, $r, sub {
588 my ($gs, $path, $props) = @_;
589 print STDOUT "\n# $path\n";
590 my $s = $props->{'svn:externals'} or return;
591 $s =~ s/[\r\n]+/\n/g;
592 chomp $s;
593 $s =~ s#^#$path#gm;
594 print STDOUT "$s\n";
595 });
596 }
597
598 sub cmd_create_ignore {
599 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
600 $gs ||= Git::SVN->new;
601 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
602 $gs->prop_walk($gs->{path}, $r, sub {
603 my ($gs, $path, $props) = @_;
604 # $path is of the form /path/to/dir/
605 my $ignore = '.' . $path . '.gitignore';
606 my $s = $props->{'svn:ignore'} or return;
607 open(GITIGNORE, '>', $ignore)
608 or fatal("Failed to open `$ignore' for writing: $!");
609 $s =~ s/[\r\n]+/\n/g;
610 chomp $s;
611 # Prefix all patterns so that the ignore doesn't apply
612 # to sub-directories.
613 $s =~ s#^#/#gm;
614 print GITIGNORE "$s\n";
615 close(GITIGNORE)
616 or fatal("Failed to close `$ignore': $!");
617 command_noisy('add', '-f', $ignore);
618 });
619 }
620
621 sub canonicalize_path {
622 my ($path) = @_;
623 my $dot_slash_added = 0;
624 if (substr($path, 0, 1) ne "/") {
625 $path = "./" . $path;
626 $dot_slash_added = 1;
627 }
628 # File::Spec->canonpath doesn't collapse x/../y into y (for a
629 # good reason), so let's do this manually.
630 $path =~ s#/+#/#g;
631 $path =~ s#/\.(?:/|$)#/#g;
632 $path =~ s#/[^/]+/\.\.##g;
633 $path =~ s#/$##g;
634 $path =~ s#^\./## if $dot_slash_added;
635 return $path;
636 }
637
638 # get_svnprops(PATH)
639 # ------------------
640 # Helper for cmd_propget and cmd_proplist below.
641 sub get_svnprops {
642 my $path = shift;
643 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
644 $gs ||= Git::SVN->new;
645
646 # prefix THE PATH by the sub-directory from which the user
647 # invoked us.
648 $path = $cmd_dir_prefix . $path;
649 fatal("No such file or directory: $path") unless -e $path;
650 my $is_dir = -d $path ? 1 : 0;
651 $path = $gs->{path} . '/' . $path;
652
653 # canonicalize the path (otherwise libsvn will abort or fail to
654 # find the file)
655 $path = canonicalize_path($path);
656
657 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
658 my $props;
659 if ($is_dir) {
660 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
661 }
662 else {
663 (undef, $props) = $gs->ra->get_file($path, $r, undef);
664 }
665 return $props;
666 }
667
668 # cmd_propget (PROP, PATH)
669 # ------------------------
670 # Print the SVN property PROP for PATH.
671 sub cmd_propget {
672 my ($prop, $path) = @_;
673 $path = '.' if not defined $path;
674 usage(1) if not defined $prop;
675 my $props = get_svnprops($path);
676 if (not defined $props->{$prop}) {
677 fatal("`$path' does not have a `$prop' SVN property.");
678 }
679 print $props->{$prop} . "\n";
680 }
681
682 # cmd_proplist (PATH)
683 # -------------------
684 # Print the list of SVN properties for PATH.
685 sub cmd_proplist {
686 my $path = shift;
687 $path = '.' if not defined $path;
688 my $props = get_svnprops($path);
689 print "Properties on '$path':\n";
690 foreach (sort keys %{$props}) {
691 print " $_\n";
692 }
693 }
694
695 sub cmd_multi_init {
696 my $url = shift;
697 unless (defined $_trunk || defined $_branches || defined $_tags) {
698 usage(1);
699 }
700
701 # there are currently some bugs that prevent multi-init/multi-fetch
702 # setups from working well without this.
703 $Git::SVN::_minimize_url = 1;
704
705 $_prefix = '' unless defined $_prefix;
706 if (defined $url) {
707 $url =~ s#/+$##;
708 init_subdir(@_);
709 }
710 do_git_init_db();
711 if (defined $_trunk) {
712 my $trunk_ref = $_prefix . 'trunk';
713 # try both old-style and new-style lookups:
714 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
715 unless ($gs_trunk) {
716 my ($trunk_url, $trunk_path) =
717 complete_svn_url($url, $_trunk);
718 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
719 undef, $trunk_ref);
720 }
721 }
722 return unless defined $_branches || defined $_tags;
723 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
724 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
725 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
726 }
727
728 sub cmd_multi_fetch {
729 my $remotes = Git::SVN::read_all_remotes();
730 foreach my $repo_id (sort keys %$remotes) {
731 if ($remotes->{$repo_id}->{url}) {
732 Git::SVN::fetch_all($repo_id, $remotes);
733 }
734 }
735 }
736
737 # this command is special because it requires no metadata
738 sub cmd_commit_diff {
739 my ($ta, $tb, $url) = @_;
740 my $usage = "Usage: $0 commit-diff -r<revision> ".
741 "<tree-ish> <tree-ish> [<URL>]";
742 fatal($usage) if (!defined $ta || !defined $tb);
743 my $svn_path;
744 if (!defined $url) {
745 my $gs = eval { Git::SVN->new };
746 if (!$gs) {
747 fatal("Needed URL or usable git-svn --id in ",
748 "the command-line\n", $usage);
749 }
750 $url = $gs->{url};
751 $svn_path = $gs->{path};
752 }
753 unless (defined $_revision) {
754 fatal("-r|--revision is a required argument\n", $usage);
755 }
756 if (defined $_message && defined $_file) {
757 fatal("Both --message/-m and --file/-F specified ",
758 "for the commit message.\n",
759 "I have no idea what you mean");
760 }
761 if (defined $_file) {
762 $_message = file_to_s($_file);
763 } else {
764 $_message ||= get_commit_entry($tb)->{log};
765 }
766 my $ra ||= Git::SVN::Ra->new($url);
767 $svn_path ||= $ra->{svn_path};
768 my $r = $_revision;
769 if ($r eq 'HEAD') {
770 $r = $ra->get_latest_revnum;
771 } elsif ($r !~ /^\d+$/) {
772 die "revision argument: $r not understood by git-svn\n";
773 }
774 my %ed_opts = ( r => $r,
775 log => $_message,
776 ra => $ra,
777 tree_a => $ta,
778 tree_b => $tb,
779 editor_cb => sub { print "Committed r$_[0]\n" },
780 svn_path => $svn_path );
781 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
782 print "No changes\n$ta == $tb\n";
783 }
784 }
785
786 sub cmd_info {
787 my $path = canonicalize_path(shift or ".");
788 unless (scalar(@_) == 0) {
789 die "Too many arguments specified\n";
790 }
791
792 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
793
794 if (!$file_type && !$diff_status) {
795 print STDERR "$path: (Not a versioned resource)\n\n";
796 return;
797 }
798
799 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
800 unless ($gs) {
801 die "Unable to determine upstream SVN information from ",
802 "working tree history\n";
803 }
804 my $full_url = $url . ($path eq "." ? "" : "/$path");
805
806 if ($_url) {
807 print $full_url, "\n";
808 return;
809 }
810
811 my $result = "Path: $path\n";
812 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
813 $result .= "URL: " . $full_url . "\n";
814
815 eval {
816 my $repos_root = $gs->repos_root;
817 Git::SVN::remove_username($repos_root);
818 $result .= "Repository Root: $repos_root\n";
819 };
820 if ($@) {
821 $result .= "Repository Root: (offline)\n";
822 }
823 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A";
824 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
825
826 $result .= "Node Kind: " .
827 ($file_type eq "dir" ? "directory" : "file") . "\n";
828
829 my $schedule = $diff_status eq "A"
830 ? "add"
831 : ($diff_status eq "D" ? "delete" : "normal");
832 $result .= "Schedule: $schedule\n";
833
834 if ($diff_status eq "A") {
835 print $result, "\n";
836 return;
837 }
838
839 my ($lc_author, $lc_rev, $lc_date_utc);
840 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $path);
841 my $log = command_output_pipe(@args);
842 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
843 while (<$log>) {
844 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
845 $lc_author = $1;
846 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
847 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
848 (undef, $lc_rev, undef) = ::extract_metadata($1);
849 }
850 }
851 close $log;
852
853 Git::SVN::Log::set_local_timezone();
854
855 $result .= "Last Changed Author: $lc_author\n";
856 $result .= "Last Changed Rev: $lc_rev\n";
857 $result .= "Last Changed Date: " .
858 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
859
860 if ($file_type ne "dir") {
861 my $text_last_updated_date =
862 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
863 $result .=
864 "Text Last Updated: " .
865 Git::SVN::Log::format_svn_date($text_last_updated_date) .
866 "\n";
867 my $checksum;
868 if ($diff_status eq "D") {
869 my ($fh, $ctx) =
870 command_output_pipe(qw(cat-file blob), "HEAD:$path");
871 if ($file_type eq "link") {
872 my $file_name = <$fh>;
873 $checksum = md5sum("link $file_name");
874 } else {
875 $checksum = md5sum($fh);
876 }
877 command_close_pipe($fh, $ctx);
878 } elsif ($file_type eq "link") {
879 my $file_name =
880 command(qw(cat-file blob), "HEAD:$path");
881 $checksum =
882 md5sum("link " . $file_name);
883 } else {
884 open FILE, "<", $path or die $!;
885 $checksum = md5sum(\*FILE);
886 close FILE or die $!;
887 }
888 $result .= "Checksum: " . $checksum . "\n";
889 }
890
891 print $result, "\n";
892 }
893
894 ########################### utility functions #########################
895
896 sub rebase_cmd {
897 my @cmd = qw/rebase/;
898 push @cmd, '-v' if $_verbose;
899 push @cmd, qw/--merge/ if $_merge;
900 push @cmd, "--strategy=$_strategy" if $_strategy;
901 @cmd;
902 }
903
904 sub post_fetch_checkout {
905 return if $_no_checkout;
906 my $gs = $Git::SVN::_head or return;
907 return if verify_ref('refs/heads/master^0');
908
909 my $valid_head = verify_ref('HEAD^0');
910 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
911 return if ($valid_head || !verify_ref('HEAD^0'));
912
913 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
914 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
915 return if -f $index;
916
917 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
918 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
919 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
920 print STDERR "Checked out HEAD:\n ",
921 $gs->full_url, " r", $gs->last_rev, "\n";
922 }
923
924 sub complete_svn_url {
925 my ($url, $path) = @_;
926 $path =~ s#/+$##;
927 if ($path !~ m#^[a-z\+]+://#) {
928 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
929 fatal("E: '$path' is not a complete URL ",
930 "and a separate URL is not specified");
931 }
932 return ($url, $path);
933 }
934 return ($path, '');
935 }
936
937 sub complete_url_ls_init {
938 my ($ra, $repo_path, $switch, $pfx) = @_;
939 unless ($repo_path) {
940 print STDERR "W: $switch not specified\n";
941 return;
942 }
943 $repo_path =~ s#/+$##;
944 if ($repo_path =~ m#^[a-z\+]+://#) {
945 $ra = Git::SVN::Ra->new($repo_path);
946 $repo_path = '';
947 } else {
948 $repo_path =~ s#^/+##;
949 unless ($ra) {
950 fatal("E: '$repo_path' is not a complete URL ",
951 "and a separate URL is not specified");
952 }
953 }
954 my $url = $ra->{url};
955 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
956 my $k = "svn-remote.$gs->{repo_id}.url";
957 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
958 if ($orig_url && ($orig_url ne $gs->{url})) {
959 die "$k already set: $orig_url\n",
960 "wanted to set to: $gs->{url}\n";
961 }
962 command_oneline('config', $k, $gs->{url}) unless $orig_url;
963 my $remote_path = "$ra->{svn_path}/$repo_path";
964 $remote_path =~ s#/+#/#g;
965 $remote_path =~ s#^/##g;
966 $remote_path .= "/*" if $remote_path !~ /\*/;
967 my ($n) = ($switch =~ /^--(\w+)/);
968 if (length $pfx && $pfx !~ m#/$#) {
969 die "--prefix='$pfx' must have a trailing slash '/'\n";
970 }
971 command_noisy('config', "svn-remote.$gs->{repo_id}.$n",
972 "$remote_path:refs/remotes/$pfx*");
973 }
974
975 sub verify_ref {
976 my ($ref) = @_;
977 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
978 { STDERR => 0 }); };
979 }
980
981 sub get_tree_from_treeish {
982 my ($treeish) = @_;
983 # $treeish can be a symbolic ref, too:
984 my $type = command_oneline(qw/cat-file -t/, $treeish);
985 my $expected;
986 while ($type eq 'tag') {
987 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
988 }
989 if ($type eq 'commit') {
990 $expected = (grep /^tree /, command(qw/cat-file commit/,
991 $treeish))[0];
992 ($expected) = ($expected =~ /^tree ($sha1)$/o);
993 die "Unable to get tree from $treeish\n" unless $expected;
994 } elsif ($type eq 'tree') {
995 $expected = $treeish;
996 } else {
997 die "$treeish is a $type, expected tree, tag or commit\n";
998 }
999 return $expected;
1000 }
1001
1002 sub get_commit_entry {
1003 my ($treeish) = shift;
1004 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1005 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1006 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1007 open my $log_fh, '>', $commit_editmsg or croak $!;
1008
1009 my $type = command_oneline(qw/cat-file -t/, $treeish);
1010 if ($type eq 'commit' || $type eq 'tag') {
1011 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1012 $type, $treeish);
1013 my $in_msg = 0;
1014 while (<$msg_fh>) {
1015 if (!$in_msg) {
1016 $in_msg = 1 if (/^\s*$/);
1017 } elsif (/^git-svn-id: /) {
1018 # skip this for now, we regenerate the
1019 # correct one on re-fetch anyways
1020 # TODO: set *:merge properties or like...
1021 } else {
1022 print $log_fh $_ or croak $!;
1023 }
1024 }
1025 command_close_pipe($msg_fh, $ctx);
1026 }
1027 close $log_fh or croak $!;
1028
1029 if ($_edit || ($type eq 'tree')) {
1030 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1031 # TODO: strip out spaces, comments, like git-commit.sh
1032 system($editor, $commit_editmsg);
1033 }
1034 rename $commit_editmsg, $commit_msg or croak $!;
1035 open $log_fh, '<', $commit_msg or croak $!;
1036 { local $/; chomp($log_entry{log} = <$log_fh>); }
1037 close $log_fh or croak $!;
1038 unlink $commit_msg;
1039 \%log_entry;
1040 }
1041
1042 sub s_to_file {
1043 my ($str, $file, $mode) = @_;
1044 open my $fd,'>',$file or croak $!;
1045 print $fd $str,"\n" or croak $!;
1046 close $fd or croak $!;
1047 chmod ($mode &~ umask, $file) if (defined $mode);
1048 }
1049
1050 sub file_to_s {
1051 my $file = shift;
1052 open my $fd,'<',$file or croak "$!: file: $file\n";
1053 local $/;
1054 my $ret = <$fd>;
1055 close $fd or croak $!;
1056 $ret =~ s/\s*$//s;
1057 return $ret;
1058 }
1059
1060 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1061 sub load_authors {
1062 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1063 my $log = $cmd eq 'log';
1064 while (<$authors>) {
1065 chomp;
1066 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1067 my ($user, $name, $email) = ($1, $2, $3);
1068 if ($log) {
1069 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1070 } else {
1071 $users{$user} = [$name, $email];
1072 }
1073 }
1074 close $authors or croak $!;
1075 }
1076
1077 # convert GetOpt::Long specs for use by git-config
1078 sub read_repo_config {
1079 return unless -d $ENV{GIT_DIR};
1080 my $opts = shift;
1081 my @config_only;
1082 foreach my $o (keys %$opts) {
1083 # if we have mixedCase and a long option-only, then
1084 # it's a config-only variable that we don't need for
1085 # the command-line.
1086 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1087 my $v = $opts->{$o};
1088 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1089 $key =~ s/-//g;
1090 my $arg = 'git-config';
1091 $arg .= ' --int' if ($o =~ /[:=]i$/);
1092 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1093 if (ref $v eq 'ARRAY') {
1094 chomp(my @tmp = `$arg --get-all svn.$key`);
1095 @$v = @tmp if @tmp;
1096 } else {
1097 chomp(my $tmp = `$arg --get svn.$key`);
1098 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1099 $$v = $tmp;
1100 }
1101 }
1102 }
1103 delete @$opts{@config_only} if @config_only;
1104 }
1105
1106 sub extract_metadata {
1107 my $id = shift or return (undef, undef, undef);
1108 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1109 \s([a-f\d\-]+)$/x);
1110 if (!defined $rev || !$uuid || !$url) {
1111 # some of the original repositories I made had
1112 # identifiers like this:
1113 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1114 }
1115 return ($url, $rev, $uuid);
1116 }
1117
1118 sub cmt_metadata {
1119 return extract_metadata((grep(/^git-svn-id: /,
1120 command(qw/cat-file commit/, shift)))[-1]);
1121 }
1122
1123 sub working_head_info {
1124 my ($head, $refs) = @_;
1125 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1126 my ($fh, $ctx) = command_output_pipe(@args, $head);
1127 my $hash;
1128 my %max;
1129 while (<$fh>) {
1130 if ( m{^commit ($::sha1)$} ) {
1131 unshift @$refs, $hash if $hash and $refs;
1132 $hash = $1;
1133 next;
1134 }
1135 next unless s{^\s*(git-svn-id:)}{$1};
1136 my ($url, $rev, $uuid) = extract_metadata($_);
1137 if (defined $url && defined $rev) {
1138 next if $max{$url} and $max{$url} < $rev;
1139 if (my $gs = Git::SVN->find_by_url($url)) {
1140 my $c = $gs->rev_map_get($rev);
1141 if ($c && $c eq $hash) {
1142 close $fh; # break the pipe
1143 return ($url, $rev, $uuid, $gs);
1144 } else {
1145 $max{$url} ||= $gs->rev_map_max;
1146 }
1147 }
1148 }
1149 }
1150 command_close_pipe($fh, $ctx);
1151 (undef, undef, undef, undef);
1152 }
1153
1154 sub read_commit_parents {
1155 my ($parents, $c) = @_;
1156 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1157 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1158 @{$parents->{$c}} = split(/ /, $p);
1159 }
1160
1161 sub linearize_history {
1162 my ($gs, $refs) = @_;
1163 my %parents;
1164 foreach my $c (@$refs) {
1165 read_commit_parents(\%parents, $c);
1166 }
1167
1168 my @linear_refs;
1169 my %skip = ();
1170 my $last_svn_commit = $gs->last_commit;
1171 foreach my $c (reverse @$refs) {
1172 next if $c eq $last_svn_commit;
1173 last if $skip{$c};
1174
1175 unshift @linear_refs, $c;
1176 $skip{$c} = 1;
1177
1178 # we only want the first parent to diff against for linear
1179 # history, we save the rest to inject when we finalize the
1180 # svn commit
1181 my $fp_a = verify_ref("$c~1");
1182 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1183 if (!$fp_a || !$fp_b) {
1184 die "Commit $c\n",
1185 "has no parent commit, and therefore ",
1186 "nothing to diff against.\n",
1187 "You should be working from a repository ",
1188 "originally created by git-svn\n";
1189 }
1190 if ($fp_a ne $fp_b) {
1191 die "$c~1 = $fp_a, however parsing commit $c ",
1192 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1193 }
1194
1195 foreach my $p (@{$parents{$c}}) {
1196 $skip{$p} = 1;
1197 }
1198 }
1199 (\@linear_refs, \%parents);
1200 }
1201
1202 sub find_file_type_and_diff_status {
1203 my ($path) = @_;
1204 return ('dir', '') if $path eq '.';
1205
1206 my $diff_output =
1207 command_oneline(qw(diff --cached --name-status --), $path) || "";
1208 my $diff_status = (split(' ', $diff_output))[0] || "";
1209
1210 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1211
1212 return (undef, undef) if !$diff_status && !$ls_tree;
1213
1214 if ($diff_status eq "A") {
1215 return ("link", $diff_status) if -l $path;
1216 return ("dir", $diff_status) if -d $path;
1217 return ("file", $diff_status);
1218 }
1219
1220 my $mode = (split(' ', $ls_tree))[0] || "";
1221
1222 return ("link", $diff_status) if $mode eq "120000";
1223 return ("dir", $diff_status) if $mode eq "040000";
1224 return ("file", $diff_status);
1225 }
1226
1227 sub md5sum {
1228 my $arg = shift;
1229 my $ref = ref $arg;
1230 my $md5 = Digest::MD5->new();
1231 if ($ref eq 'GLOB' || $ref eq 'IO::File') {
1232 $md5->addfile($arg) or croak $!;
1233 } elsif ($ref eq 'SCALAR') {
1234 $md5->add($$arg) or croak $!;
1235 } elsif (!$ref) {
1236 $md5->add($arg) or croak $!;
1237 } else {
1238 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1239 }
1240 return $md5->hexdigest();
1241 }
1242
1243 package Git::SVN;
1244 use strict;
1245 use warnings;
1246 use Fcntl qw/:DEFAULT :seek/;
1247 use constant rev_map_fmt => 'NH40';
1248 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1249 $_repack $_repack_flags $_use_svm_props $_head
1250 $_use_svnsync_props $no_reuse_existing $_minimize_url
1251 $_use_log_author/;
1252 use Carp qw/croak/;
1253 use File::Path qw/mkpath/;
1254 use File::Copy qw/copy/;
1255 use IPC::Open3;
1256
1257 my ($_gc_nr, $_gc_period);
1258
1259 # properties that we do not log:
1260 my %SKIP_PROP;
1261 BEGIN {
1262 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1263 svn:special svn:executable
1264 svn:entry:committed-rev
1265 svn:entry:last-author
1266 svn:entry:uuid
1267 svn:entry:committed-date/;
1268
1269 # some options are read globally, but can be overridden locally
1270 # per [svn-remote "..."] section. Command-line options will *NOT*
1271 # override options set in an [svn-remote "..."] section
1272 no strict 'refs';
1273 for my $option (qw/follow_parent no_metadata use_svm_props
1274 use_svnsync_props/) {
1275 my $key = $option;
1276 $key =~ tr/_//d;
1277 my $prop = "-$option";
1278 *$option = sub {
1279 my ($self) = @_;
1280 return $self->{$prop} if exists $self->{$prop};
1281 my $k = "svn-remote.$self->{repo_id}.$key";
1282 eval { command_oneline(qw/config --get/, $k) };
1283 if ($@) {
1284 $self->{$prop} = ${"Git::SVN::_$option"};
1285 } else {
1286 my $v = command_oneline(qw/config --bool/,$k);
1287 $self->{$prop} = $v eq 'false' ? 0 : 1;
1288 }
1289 return $self->{$prop};
1290 }
1291 }
1292 }
1293
1294 my (%LOCKFILES, %INDEX_FILES);
1295 END {
1296 unlink keys %LOCKFILES if %LOCKFILES;
1297 unlink keys %INDEX_FILES if %INDEX_FILES;
1298 }
1299
1300 sub resolve_local_globs {
1301 my ($url, $fetch, $glob_spec) = @_;
1302 return unless defined $glob_spec;
1303 my $ref = $glob_spec->{ref};
1304 my $path = $glob_spec->{path};
1305 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
1306 next unless m#^refs/remotes/$ref->{regex}$#;
1307 my $p = $1;
1308 my $pathname = desanitize_refname($path->full_path($p));
1309 my $refname = desanitize_refname($ref->full_path($p));
1310 if (my $existing = $fetch->{$pathname}) {
1311 if ($existing ne $refname) {
1312 die "Refspec conflict:\n",
1313 "existing: refs/remotes/$existing\n",
1314 " globbed: refs/remotes/$refname\n";
1315 }
1316 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
1317 $u =~ s!^\Q$url\E(/|$)!! or die
1318 "refs/remotes/$refname: '$url' not found in '$u'\n";
1319 if ($pathname ne $u) {
1320 warn "W: Refspec glob conflict ",
1321 "(ref: refs/remotes/$refname):\n",
1322 "expected path: $pathname\n",
1323 " real path: $u\n",
1324 "Continuing ahead with $u\n";
1325 next;
1326 }
1327 } else {
1328 $fetch->{$pathname} = $refname;
1329 }
1330 }
1331 }
1332
1333 sub parse_revision_argument {
1334 my ($base, $head) = @_;
1335 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1336 return ($base, $head);
1337 }
1338 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1339 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1340 return ($head, $head) if ($::_revision eq 'HEAD');
1341 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1342 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1343 die "revision argument: $::_revision not understood by git-svn\n";
1344 }
1345
1346 sub fetch_all {
1347 my ($repo_id, $remotes) = @_;
1348 if (ref $repo_id) {
1349 my $gs = $repo_id;
1350 $repo_id = undef;
1351 $repo_id = $gs->{repo_id};
1352 }
1353 $remotes ||= read_all_remotes();
1354 my $remote = $remotes->{$repo_id} or
1355 die "[svn-remote \"$repo_id\"] unknown\n";
1356 my $fetch = $remote->{fetch};
1357 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1358 my (@gs, @globs);
1359 my $ra = Git::SVN::Ra->new($url);
1360 my $uuid = $ra->get_uuid;
1361 my $head = $ra->get_latest_revnum;
1362 my $base = defined $fetch ? $head : 0;
1363
1364 # read the max revs for wildcard expansion (branches/*, tags/*)
1365 foreach my $t (qw/branches tags/) {
1366 defined $remote->{$t} or next;
1367 push @globs, $remote->{$t};
1368 my $max_rev = eval { tmp_config(qw/--int --get/,
1369 "svn-remote.$repo_id.${t}-maxRev") };
1370 if (defined $max_rev && ($max_rev < $base)) {
1371 $base = $max_rev;
1372 } elsif (!defined $max_rev) {
1373 $base = 0;
1374 }
1375 }
1376
1377 if ($fetch) {
1378 foreach my $p (sort keys %$fetch) {
1379 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1380 my $lr = $gs->rev_map_max;
1381 if (defined $lr) {
1382 $base = $lr if ($lr < $base);
1383 }
1384 push @gs, $gs;
1385 }
1386 }
1387
1388 ($base, $head) = parse_revision_argument($base, $head);
1389 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1390 }
1391
1392 sub read_all_remotes {
1393 my $r = {};
1394 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1395 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
1396 my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
1397 $local_ref =~ s{^/}{};
1398 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1399 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1400 $r->{$1}->{url} = $2;
1401 } elsif (m!^(.+)\.(branches|tags)=
1402 (.*):refs/remotes/(.+)\s*$/!x) {
1403 my ($p, $g) = ($3, $4);
1404 my $rs = $r->{$1}->{$2} = {
1405 t => $2,
1406 remote => $1,
1407 path => Git::SVN::GlobSpec->new($p),
1408 ref => Git::SVN::GlobSpec->new($g) };
1409 if (length($rs->{ref}->{right}) != 0) {
1410 die "The '*' glob character must be the last ",
1411 "character of '$g'\n";
1412 }
1413 }
1414 }
1415 $r;
1416 }
1417
1418 sub init_vars {
1419 $_gc_nr = $_gc_period = 1000;
1420 if (defined $_repack || defined $_repack_flags) {
1421 warn "Repack options are obsolete; they have no effect.\n";
1422 }
1423 }
1424
1425 sub verify_remotes_sanity {
1426 return unless -d $ENV{GIT_DIR};
1427 my %seen;
1428 foreach (command(qw/config -l/)) {
1429 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1430 if ($seen{$1}) {
1431 die "Remote ref refs/remote/$1 is tracked by",
1432 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1433 "Please resolve this ambiguity in ",
1434 "your git configuration file before ",
1435 "continuing\n";
1436 }
1437 $seen{$1} = $_;
1438 }
1439 }
1440 }
1441
1442 # we allow more chars than remotes2config.sh...
1443 sub sanitize_remote_name {
1444 my ($name) = @_;
1445 $name =~ tr{A-Za-z0-9:,/+-}{.}c;
1446 $name;
1447 }
1448
1449 sub find_existing_remote {
1450 my ($url, $remotes) = @_;
1451 return undef if $no_reuse_existing;
1452 my $existing;
1453 foreach my $repo_id (keys %$remotes) {
1454 my $u = $remotes->{$repo_id}->{url} or next;
1455 next if $u ne $url;
1456 $existing = $repo_id;
1457 last;
1458 }
1459 $existing;
1460 }
1461
1462 sub init_remote_config {
1463 my ($self, $url, $no_write) = @_;
1464 $url =~ s!/+$!!; # strip trailing slash
1465 my $r = read_all_remotes();
1466 my $existing = find_existing_remote($url, $r);
1467 if ($existing) {
1468 unless ($no_write) {
1469 print STDERR "Using existing ",
1470 "[svn-remote \"$existing\"]\n";
1471 }
1472 $self->{repo_id} = $existing;
1473 } elsif ($_minimize_url) {
1474 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1475 $existing = find_existing_remote($min_url, $r);
1476 if ($existing) {
1477 unless ($no_write) {
1478 print STDERR "Using existing ",
1479 "[svn-remote \"$existing\"]\n";
1480 }
1481 $self->{repo_id} = $existing;
1482 }
1483 if ($min_url ne $url) {
1484 unless ($no_write) {
1485 print STDERR "Using higher level of URL: ",
1486 "$url => $min_url\n";
1487 }
1488 my $old_path = $self->{path};
1489 $self->{path} = $url;
1490 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1491 if (length $old_path) {
1492 $self->{path} .= "/$old_path";
1493 }
1494 $url = $min_url;
1495 }
1496 }
1497 my $orig_url;
1498 if (!$existing) {
1499 # verify that we aren't overwriting anything:
1500 $orig_url = eval {
1501 command_oneline('config', '--get',
1502 "svn-remote.$self->{repo_id}.url")
1503 };
1504 if ($orig_url && ($orig_url ne $url)) {
1505 die "svn-remote.$self->{repo_id}.url already set: ",
1506 "$orig_url\nwanted to set to: $url\n";
1507 }
1508 }
1509 my ($xrepo_id, $xpath) = find_ref($self->refname);
1510 if (defined $xpath) {
1511 die "svn-remote.$xrepo_id.fetch already set to track ",
1512 "$xpath:refs/remotes/", $self->refname, "\n";
1513 }
1514 unless ($no_write) {
1515 command_noisy('config',
1516 "svn-remote.$self->{repo_id}.url", $url);
1517 $self->{path} =~ s{^/}{};
1518 command_noisy('config', '--add',
1519 "svn-remote.$self->{repo_id}.fetch",
1520 "$self->{path}:".$self->refname);
1521 }
1522 $self->{url} = $url;
1523 }
1524
1525 sub find_by_url { # repos_root and, path are optional
1526 my ($class, $full_url, $repos_root, $path) = @_;
1527
1528 return undef unless defined $full_url;
1529 remove_username($full_url);
1530 remove_username($repos_root) if defined $repos_root;
1531 my $remotes = read_all_remotes();
1532 if (defined $full_url && defined $repos_root && !defined $path) {
1533 $path = $full_url;
1534 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1535 }
1536 foreach my $repo_id (keys %$remotes) {
1537 my $u = $remotes->{$repo_id}->{url} or next;
1538 remove_username($u);
1539 next if defined $repos_root && $repos_root ne $u;
1540
1541 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1542 foreach (qw/branches tags/) {
1543 resolve_local_globs($u, $fetch,
1544 $remotes->{$repo_id}->{$_});
1545 }
1546 my $p = $path;
1547 my $rwr = rewrite_root({repo_id => $repo_id});
1548 unless (defined $p) {
1549 $p = $full_url;
1550 my $z = $u;
1551 if ($rwr) {
1552 $z = $rwr;
1553 }
1554 $p =~ s#^\Q$z\E(?:/|$)## or next;
1555 }
1556 foreach my $f (keys %$fetch) {
1557 next if $f ne $p;
1558 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1559 }
1560 }
1561 undef;
1562 }
1563
1564 sub init {
1565 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1566 my $self = _new($class, $repo_id, $ref_id, $path);
1567 if (defined $url) {
1568 $self->init_remote_config($url, $no_write);
1569 }
1570 $self;
1571 }
1572
1573 sub find_ref {
1574 my ($ref_id) = @_;
1575 foreach (command(qw/config -l/)) {
1576 next unless m!^svn-remote\.(.+)\.fetch=
1577 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1578 my ($repo_id, $path, $ref) = ($1, $2, $3);
1579 if ($ref eq $ref_id) {
1580 $path = '' if ($path =~ m#^\./?#);
1581 return ($repo_id, $path);
1582 }
1583 }
1584 (undef, undef, undef);
1585 }
1586
1587 sub new {
1588 my ($class, $ref_id, $repo_id, $path) = @_;
1589 if (defined $ref_id && !defined $repo_id && !defined $path) {
1590 ($repo_id, $path) = find_ref($ref_id);
1591 if (!defined $repo_id) {
1592 die "Could not find a \"svn-remote.*.fetch\" key ",
1593 "in the repository configuration matching: ",
1594 "refs/remotes/$ref_id\n";
1595 }
1596 }
1597 my $self = _new($class, $repo_id, $ref_id, $path);
1598 if (!defined $self->{path} || !length $self->{path}) {
1599 my $fetch = command_oneline('config', '--get',
1600 "svn-remote.$repo_id.fetch",
1601 ":refs/remotes/$ref_id\$") or
1602 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1603 "\":refs/remotes/$ref_id\$\" in config\n";
1604 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1605 }
1606 $self->{url} = command_oneline('config', '--get',
1607 "svn-remote.$repo_id.url") or
1608 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1609 $self->rebuild;
1610 $self;
1611 }
1612
1613 sub refname {
1614 my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
1615
1616 # It cannot end with a slash /, we'll throw up on this because
1617 # SVN can't have directories with a slash in their name, either:
1618 if ($refname =~ m{/$}) {
1619 die "ref: '$refname' ends with a trailing slash, this is ",
1620 "not permitted by git nor Subversion\n";
1621 }
1622
1623 # It cannot have ASCII control character space, tilde ~, caret ^,
1624 # colon :, question-mark ?, asterisk *, space, or open bracket [
1625 # anywhere.
1626 #
1627 # Additionally, % must be escaped because it is used for escaping
1628 # and we want our escaped refname to be reversible
1629 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
1630
1631 # no slash-separated component can begin with a dot .
1632 # /.* becomes /%2E*
1633 $refname =~ s{/\.}{/%2E}g;
1634
1635 # It cannot have two consecutive dots .. anywhere
1636 # .. becomes %2E%2E
1637 $refname =~ s{\.\.}{%2E%2E}g;
1638
1639 return $refname;
1640 }
1641
1642 sub desanitize_refname {
1643 my ($refname) = @_;
1644 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
1645 return $refname;
1646 }
1647
1648 sub svm_uuid {
1649 my ($self) = @_;
1650 return $self->{svm}->{uuid} if $self->svm;
1651 $self->ra;
1652 unless ($self->{svm}) {
1653 die "SVM UUID not cached, and reading remotely failed\n";
1654 }
1655 $self->{svm}->{uuid};
1656 }
1657
1658 sub svm {
1659 my ($self) = @_;
1660 return $self->{svm} if $self->{svm};
1661 my $svm;
1662 # see if we have it in our config, first:
1663 eval {
1664 my $section = "svn-remote.$self->{repo_id}";
1665 $svm = {
1666 source => tmp_config('--get', "$section.svm-source"),
1667 uuid => tmp_config('--get', "$section.svm-uuid"),
1668 replace => tmp_config('--get', "$section.svm-replace"),
1669 }
1670 };
1671 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1672 $self->{svm} = $svm;
1673 }
1674 $self->{svm};
1675 }
1676
1677 sub _set_svm_vars {
1678 my ($self, $ra) = @_;
1679 return $ra if $self->svm;
1680
1681 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1682 "(svm:source, svm:uuid) ",
1683 "from the following URLs:\n" );
1684 sub read_svm_props {
1685 my ($self, $ra, $path, $r) = @_;
1686 my $props = ($ra->get_dir($path, $r))[2];
1687 my $src = $props->{'svm:source'};
1688 my $uuid = $props->{'svm:uuid'};
1689 return undef if (!$src || !$uuid);
1690
1691 chomp($src, $uuid);
1692
1693 $uuid =~ m{^[0-9a-f\-]{30,}$}
1694 or die "doesn't look right - svm:uuid is '$uuid'\n";
1695
1696 # the '!' is used to mark the repos_root!/relative/path
1697 $src =~ s{/?!/?}{/};
1698 $src =~ s{/+$}{}; # no trailing slashes please
1699 # username is of no interest
1700 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1701
1702 my $replace = $ra->{url};
1703 $replace .= "/$path" if length $path;
1704
1705 my $section = "svn-remote.$self->{repo_id}";
1706 tmp_config("$section.svm-source", $src);
1707 tmp_config("$section.svm-replace", $replace);
1708 tmp_config("$section.svm-uuid", $uuid);
1709 $self->{svm} = {
1710 source => $src,
1711 uuid => $uuid,
1712 replace => $replace
1713 };
1714 }
1715
1716 my $r = $ra->get_latest_revnum;
1717 my $path = $self->{path};
1718 my %tried;
1719 while (length $path) {
1720 unless ($tried{"$self->{url}/$path"}) {
1721 return $ra if $self->read_svm_props($ra, $path, $r);
1722 $tried{"$self->{url}/$path"} = 1;
1723 }
1724 $path =~ s#/?[^/]+$##;
1725 }
1726 die "Path: '$path' should be ''\n" if $path ne '';
1727 return $ra if $self->read_svm_props($ra, $path, $r);
1728 $tried{"$self->{url}/$path"} = 1;
1729
1730 if ($ra->{repos_root} eq $self->{url}) {
1731 die @err, (map { " $_\n" } keys %tried), "\n";
1732 }
1733
1734 # nope, make sure we're connected to the repository root:
1735 my $ok;
1736 my @tried_b;
1737 $path = $ra->{svn_path};
1738 $ra = Git::SVN::Ra->new($ra->{repos_root});
1739 while (length $path) {
1740 unless ($tried{"$ra->{url}/$path"}) {
1741 $ok = $self->read_svm_props($ra, $path, $r);
1742 last if $ok;
1743 $tried{"$ra->{url}/$path"} = 1;
1744 }
1745 $path =~ s#/?[^/]+$##;
1746 }
1747 die "Path: '$path' should be ''\n" if $path ne '';
1748 $ok ||= $self->read_svm_props($ra, $path, $r);
1749 $tried{"$ra->{url}/$path"} = 1;
1750 if (!$ok) {
1751 die @err, (map { " $_\n" } keys %tried), "\n";
1752 }
1753 Git::SVN::Ra->new($self->{url});
1754 }
1755
1756 sub svnsync {
1757 my ($self) = @_;
1758 return $self->{svnsync} if $self->{svnsync};
1759
1760 if ($self->no_metadata) {
1761 die "Can't have both 'noMetadata' and ",
1762 "'useSvnsyncProps' options set!\n";
1763 }
1764 if ($self->rewrite_root) {
1765 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1766 "options set!\n";
1767 }
1768
1769 my $svnsync;
1770 # see if we have it in our config, first:
1771 eval {
1772 my $section = "svn-remote.$self->{repo_id}";
1773
1774 my $url = tmp_config('--get', "$section.svnsync-url");
1775 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1776 die "doesn't look right - svn:sync-from-url is '$url'\n";
1777
1778 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
1779 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1780 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1781
1782 $svnsync = { url => $url, uuid => $uuid }
1783 };
1784 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1785 return $self->{svnsync} = $svnsync;
1786 }
1787
1788 my $err = "useSvnsyncProps set, but failed to read " .
1789 "svnsync property: svn:sync-from-";
1790 my $rp = $self->ra->rev_proplist(0);
1791
1792 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1793 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1794 die "doesn't look right - svn:sync-from-url is '$url'\n";
1795
1796 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1797 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1798 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1799
1800 my $section = "svn-remote.$self->{repo_id}";
1801 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1802 tmp_config('--add', "$section.svnsync-url", $url);
1803 return $self->{svnsync} = { url => $url, uuid => $uuid };
1804 }
1805
1806 # this allows us to memoize our SVN::Ra UUID locally and avoid a
1807 # remote lookup (useful for 'git svn log').
1808 sub ra_uuid {
1809 my ($self) = @_;
1810 unless ($self->{ra_uuid}) {
1811 my $key = "svn-remote.$self->{repo_id}.uuid";
1812 my $uuid = eval { tmp_config('--get', $key) };
1813 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1814 $self->{ra_uuid} = $uuid;
1815 } else {
1816 die "ra_uuid called without URL\n" unless $self->{url};
1817 $self->{ra_uuid} = $self->ra->get_uuid;
1818 tmp_config('--add', $key, $self->{ra_uuid});
1819 }
1820 }
1821 $self->{ra_uuid};
1822 }
1823
1824 sub _set_repos_root {
1825 my ($self, $repos_root) = @_;
1826 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1827 $repos_root ||= $self->ra->{repos_root};
1828 tmp_config($k, $repos_root);
1829 $repos_root;
1830 }
1831
1832 sub repos_root {
1833 my ($self) = @_;
1834 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1835 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
1836 }
1837
1838 sub ra {
1839 my ($self) = shift;
1840 my $ra = Git::SVN::Ra->new($self->{url});
1841 $self->_set_repos_root($ra->{repos_root});
1842 if ($self->use_svm_props && !$self->{svm}) {
1843 if ($self->no_metadata) {
1844 die "Can't have both 'noMetadata' and ",
1845 "'useSvmProps' options set!\n";
1846 } elsif ($self->use_svnsync_props) {
1847 die "Can't have both 'useSvnsyncProps' and ",
1848 "'useSvmProps' options set!\n";
1849 }
1850 $ra = $self->_set_svm_vars($ra);
1851 $self->{-want_revprops} = 1;
1852 }
1853 $ra;
1854 }
1855
1856 sub rel_path {
1857 my ($self) = @_;
1858 my $repos_root = $self->ra->{repos_root};
1859 return $self->{path} if ($self->{url} eq $repos_root);
1860 my $url = $self->{url} .
1861 (length $self->{path} ? "/$self->{path}" : $self->{path});
1862 $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
1863 $url;
1864 }
1865
1866 # prop_walk(PATH, REV, SUB)
1867 # -------------------------
1868 # Recursively traverse PATH at revision REV and invoke SUB for each
1869 # directory that contains a SVN property. SUB will be invoked as
1870 # follows: &SUB(gs, path, props); where `gs' is this instance of
1871 # Git::SVN, `path' the path to the directory where the properties
1872 # `props' were found. The `path' will be relative to point of checkout,
1873 # that is, if url://repo/trunk is the current Git branch, and that
1874 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
1875 # as `path' (note the trailing `/').
1876 sub prop_walk {
1877 my ($self, $path, $rev, $sub) = @_;
1878
1879 $path =~ s#^/##;
1880 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
1881 $path =~ s#^/*#/#g;
1882 my $p = $path;
1883 # Strip the irrelevant part of the path.
1884 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
1885 # Ensure the path is terminated by a `/'.
1886 $p =~ s#/*$#/#;
1887
1888 # The properties contain all the internal SVN stuff nobody
1889 # (usually) cares about.
1890 my $interesting_props = 0;
1891 foreach (keys %{$props}) {
1892 # If it doesn't start with `svn:', it must be a
1893 # user-defined property.
1894 ++$interesting_props and next if $_ !~ /^svn:/;
1895 # FIXME: Fragile, if SVN adds new public properties,
1896 # this needs to be updated.
1897 ++$interesting_props if /^svn:(?:ignore|keywords|executable
1898 |eol-style|mime-type
1899 |externals|needs-lock)$/x;
1900 }
1901 &$sub($self, $p, $props) if $interesting_props;
1902
1903 foreach (sort keys %$dirent) {
1904 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
1905 $self->prop_walk($p . $_, $rev, $sub);
1906 }
1907 }
1908
1909 sub last_rev { ($_[0]->last_rev_commit)[0] }
1910 sub last_commit { ($_[0]->last_rev_commit)[1] }
1911
1912 # returns the newest SVN revision number and newest commit SHA1
1913 sub last_rev_commit {
1914 my ($self) = @_;
1915 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1916 return ($self->{last_rev}, $self->{last_commit});
1917 }
1918 my $c = ::verify_ref($self->refname.'^0');
1919 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1920 my $rev = (::cmt_metadata($c))[1];
1921 if (defined $rev) {
1922 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1923 return ($rev, $c);
1924 }
1925 }
1926 my $map_path = $self->map_path;
1927 unless (-e $map_path) {
1928 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
1929 return (undef, undef);
1930 }
1931 my ($rev, $commit) = $self->rev_map_max(1);
1932 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
1933 return ($rev, $commit);
1934 }
1935
1936 sub get_fetch_range {
1937 my ($self, $min, $max) = @_;
1938 $max ||= $self->ra->get_latest_revnum;
1939 $min ||= $self->rev_map_max;
1940 (++$min, $max);
1941 }
1942
1943 sub tmp_config {
1944 my (@args) = @_;
1945 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
1946 my $config = "$ENV{GIT_DIR}/svn/.metadata";
1947 if (! -f $config && -f $old_def_config) {
1948 rename $old_def_config, $config or
1949 die "Failed rename $old_def_config => $config: $!\n";
1950 }
1951 my $old_config = $ENV{GIT_CONFIG};
1952 $ENV{GIT_CONFIG} = $config;
1953 $@ = undef;
1954 my @ret = eval {
1955 unless (-f $config) {
1956 mkfile($config);
1957 open my $fh, '>', $config or
1958 die "Can't open $config: $!\n";
1959 print $fh "; This file is used internally by ",
1960 "git-svn\n" or die
1961 "Couldn't write to $config: $!\n";
1962 print $fh "; You should not have to edit it\n" or
1963 die "Couldn't write to $config: $!\n";
1964 close $fh or die "Couldn't close $config: $!\n";
1965 }
1966 command('config', @args);
1967 };
1968 my $err = $@;
1969 if (defined $old_config) {
1970 $ENV{GIT_CONFIG} = $old_config;
1971 } else {
1972 delete $ENV{GIT_CONFIG};
1973 }
1974 die $err if $err;
1975 wantarray ? @ret : $ret[0];
1976 }
1977
1978 sub tmp_index_do {
1979 my ($self, $sub) = @_;
1980 my $old_index = $ENV{GIT_INDEX_FILE};
1981 $ENV{GIT_INDEX_FILE} = $self->{index};
1982 $@ = undef;
1983 my @ret = eval {
1984 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
1985 mkpath([$dir]) unless -d $dir;
1986 &$sub;
1987 };
1988 my $err = $@;
1989 if (defined $old_index) {
1990 $ENV{GIT_INDEX_FILE} = $old_index;
1991 } else {
1992 delete $ENV{GIT_INDEX_FILE};
1993 }
1994 die $err if $err;
1995 wantarray ? @ret : $ret[0];
1996 }
1997
1998 sub assert_index_clean {
1999 my ($self, $treeish) = @_;
2000
2001 $self->tmp_index_do(sub {
2002 command_noisy('read-tree', $treeish) unless -e $self->{index};
2003 my $x = command_oneline('write-tree');
2004 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2005 /^tree ($::sha1)/mo);
2006 return if $y eq $x;
2007
2008 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2009 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2010 command_noisy('read-tree', $treeish);
2011 $x = command_oneline('write-tree');
2012 if ($y ne $x) {
2013 ::fatal "trees ($treeish) $y != $x\n",
2014 "Something is seriously wrong...";
2015 }
2016 });
2017 }
2018
2019 sub get_commit_parents {
2020 my ($self, $log_entry) = @_;
2021 my (%seen, @ret, @tmp);
2022 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2023 if (my $ip = $self->{inject_parents}) {
2024 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2025 push @tmp, $commit;
2026 }
2027 }
2028 if (my $cur = ::verify_ref($self->refname.'^0')) {
2029 push @tmp, $cur;
2030 }
2031 if (my $ipd = $self->{inject_parents_dcommit}) {
2032 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2033 push @tmp, @$commit;
2034 }
2035 }
2036 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2037 while (my $p = shift @tmp) {
2038 next if $seen{$p};
2039 $seen{$p} = 1;
2040 push @ret, $p;
2041 # MAXPARENT is defined to 16 in commit-tree.c:
2042 last if @ret >= 16;
2043 }
2044 if (@tmp) {
2045 die "r$log_entry->{revision}: No room for parents:\n\t",
2046 join("\n\t", @tmp), "\n";
2047 }
2048 @ret;
2049 }
2050
2051 sub rewrite_root {
2052 my ($self) = @_;
2053 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2054 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2055 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2056 if ($rwr) {
2057 $rwr =~ s#/+$##;
2058 if ($rwr !~ m#^[a-z\+]+://#) {
2059 die "$rwr is not a valid URL (key: $k)\n";
2060 }
2061 }
2062 $self->{-rewrite_root} = $rwr;
2063 }
2064
2065 sub metadata_url {
2066 my ($self) = @_;
2067 ($self->rewrite_root || $self->{url}) .
2068 (length $self->{path} ? '/' . $self->{path} : '');
2069 }
2070
2071 sub full_url {
2072 my ($self) = @_;
2073 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2074 }
2075
2076
2077 sub set_commit_header_env {
2078 my ($log_entry) = @_;
2079 my %env;
2080 foreach my $ned (qw/NAME EMAIL DATE/) {
2081 foreach my $ac (qw/AUTHOR COMMITTER/) {
2082 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2083 }
2084 }
2085
2086 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2087 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2088 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2089
2090 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2091 ? $log_entry->{commit_name}
2092 : $log_entry->{name};
2093 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2094 ? $log_entry->{commit_email}
2095 : $log_entry->{email};
2096 \%env;
2097 }
2098
2099 sub restore_commit_header_env {
2100 my ($env) = @_;
2101 foreach my $ned (qw/NAME EMAIL DATE/) {
2102 foreach my $ac (qw/AUTHOR COMMITTER/) {
2103 my $k = "GIT_${ac}_${ned}";
2104 if (defined $env->{$k}) {
2105 $ENV{$k} = $env->{$k};
2106 } else {
2107 delete $ENV{$k};
2108 }
2109 }
2110 }
2111 }
2112
2113 sub gc {
2114 command_noisy('gc', '--auto');
2115 };
2116
2117 sub do_git_commit {
2118 my ($self, $log_entry) = @_;
2119 my $lr = $self->last_rev;
2120 if (defined $lr && $lr >= $log_entry->{revision}) {
2121 die "Last fetched revision of ", $self->refname,
2122 " was r$lr, but we are about to fetch: ",
2123 "r$log_entry->{revision}!\n";
2124 }
2125 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2126 croak "$log_entry->{revision} = $c already exists! ",
2127 "Why are we refetching it?\n";
2128 }
2129 my $old_env = set_commit_header_env($log_entry);
2130 my $tree = $log_entry->{tree};
2131 if (!defined $tree) {
2132 $tree = $self->tmp_index_do(sub {
2133 command_oneline('write-tree') });
2134 }
2135 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2136
2137 my @exec = ('git-commit-tree', $tree);
2138 foreach ($self->get_commit_parents($log_entry)) {
2139 push @exec, '-p', $_;
2140 }
2141 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2142 or croak $!;
2143 print $msg_fh $log_entry->{log} or croak $!;
2144 restore_commit_header_env($old_env);
2145 unless ($self->no_metadata) {
2146 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2147 or croak $!;
2148 }
2149 $msg_fh->flush == 0 or croak $!;
2150 close $msg_fh or croak $!;
2151 chomp(my $commit = do { local $/; <$out_fh> });
2152 close $out_fh or croak $!;
2153 waitpid $pid, 0;
2154 croak $? if $?;
2155 if ($commit !~ /^$::sha1$/o) {
2156 die "Failed to commit, invalid sha1: $commit\n";
2157 }
2158
2159 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2160
2161 $self->{last_rev} = $log_entry->{revision};
2162 $self->{last_commit} = $commit;
2163 print "r$log_entry->{revision}";
2164 if (defined $log_entry->{svm_revision}) {
2165 print " (\@$log_entry->{svm_revision})";
2166 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2167 0, $self->svm_uuid);
2168 }
2169 print " = $commit ($self->{ref_id})\n";
2170 if (--$_gc_nr == 0) {
2171 $_gc_nr = $_gc_period;
2172 gc();
2173 }
2174 return $commit;
2175 }
2176
2177 sub match_paths {
2178 my ($self, $paths, $r) = @_;
2179 return 1 if $self->{path} eq '';
2180 if (my $path = $paths->{"/$self->{path}"}) {
2181 return ($path->{action} eq 'D') ? 0 : 1;
2182 }
2183 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2184 if (grep /$self->{path_regex}/, keys %$paths) {
2185 return 1;
2186 }
2187 my $c = '';
2188 foreach (split m#/#, $self->{path}) {
2189 $c .= "/$_";
2190 next unless ($paths->{$c} &&
2191 ($paths->{$c}->{action} =~ /^[AR]$/));
2192 if ($self->ra->check_path($self->{path}, $r) ==
2193 $SVN::Node::dir) {
2194 return 1;
2195 }
2196 }
2197 return 0;
2198 }
2199
2200 sub find_parent_branch {
2201 my ($self, $paths, $rev) = @_;
2202 return undef unless $self->follow_parent;
2203 unless (defined $paths) {
2204 my $err_handler = $SVN::Error::handler;
2205 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2206 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
2207 $paths =
2208 Git::SVN::Ra::dup_changed_paths($_[0]) });
2209 $SVN::Error::handler = $err_handler;
2210 }
2211 return undef unless defined $paths;
2212
2213 # look for a parent from another branch:
2214 my @b_path_components = split m#/#, $self->rel_path;
2215 my @a_path_components;
2216 my $i;
2217 while (@b_path_components) {
2218 $i = $paths->{'/'.join('/', @b_path_components)};
2219 last if $i && defined $i->{copyfrom_path};
2220 unshift(@a_path_components, pop(@b_path_components));
2221 }
2222 return undef unless defined $i && defined $i->{copyfrom_path};
2223 my $branch_from = $i->{copyfrom_path};
2224 if (@a_path_components) {
2225 print STDERR "branch_from: $branch_from => ";
2226 $branch_from .= '/'.join('/', @a_path_components);
2227 print STDERR $branch_from, "\n";
2228 }
2229 my $r = $i->{copyfrom_rev};
2230 my $repos_root = $self->ra->{repos_root};
2231 my $url = $self->ra->{url};
2232 my $new_url = $repos_root . $branch_from;
2233 print STDERR "Found possible branch point: ",
2234 "$new_url => ", $self->full_url, ", $r\n";
2235 $branch_from =~ s#^/##;
2236 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
2237 unless ($gs) {
2238 my $ref_id = $self->{ref_id};
2239 $ref_id =~ s/\@\d+$//;
2240 $ref_id .= "\@$r";
2241 # just grow a tail if we're not unique enough :x
2242 $ref_id .= '-' while find_ref($ref_id);
2243 print STDERR "Initializing parent: $ref_id\n";
2244 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2245 if ($u =~ s#^\Q$url\E(/|$)##) {
2246 $p = $u;
2247 $u = $url;
2248 $repo_id = $self->{repo_id};
2249 }
2250 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2251 }
2252 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2253 if (!defined $r0 || !defined $parent) {
2254 my ($base, $head) = parse_revision_argument(0, $r);
2255 if ($base <= $r) {
2256 $gs->fetch($base, $r);
2257 }
2258 ($r0, $parent) = $gs->last_rev_commit;
2259 }
2260 if (defined $r0 && defined $parent) {
2261 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
2262 my $ed;
2263 if ($self->ra->can_do_switch) {
2264 $self->assert_index_clean($parent);
2265 print STDERR "Following parent with do_switch\n";
2266 # do_switch works with svn/trunk >= r22312, but that
2267 # is not included with SVN 1.4.3 (the latest version
2268 # at the moment), so we can't rely on it
2269 $self->{last_commit} = $parent;
2270 $ed = SVN::Git::Fetcher->new($self);
2271 $gs->ra->gs_do_switch($r0, $rev, $gs,
2272 $self->full_url, $ed)
2273 or die "SVN connection failed somewhere...\n";
2274 } elsif ($self->ra->trees_match($new_url, $r0,
2275 $self->full_url, $rev)) {
2276 print STDERR "Trees match:\n",
2277 " $new_url\@$r0\n",
2278 " ${\$self->full_url}\@$rev\n",
2279 "Following parent with no changes\n";
2280 $self->tmp_index_do(sub {
2281 command_noisy('read-tree', $parent);
2282 });
2283 $self->{last_commit} = $parent;
2284 } else {
2285 print STDERR "Following parent with do_update\n";
2286 $ed = SVN::Git::Fetcher->new($self);
2287 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2288 or die "SVN connection failed somewhere...\n";
2289 }
2290 print STDERR "Successfully followed parent\n";
2291 return $self->make_log_entry($rev, [$parent], $ed);
2292 }
2293 return undef;
2294 }
2295
2296 sub do_fetch {
2297 my ($self, $paths, $rev) = @_;
2298 my $ed;
2299 my ($last_rev, @parents);
2300 if (my $lc = $self->last_commit) {
2301 # we can have a branch that was deleted, then re-added
2302 # under the same name but copied from another path, in
2303 # which case we'll have multiple parents (we don't
2304 # want to break the original ref, nor lose copypath info):
2305 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2306 push @{$log_entry->{parents}}, $lc;
2307 return $log_entry;
2308 }
2309 $ed = SVN::Git::Fetcher->new($self);
2310 $last_rev = $self->{last_rev};
2311 $ed->{c} = $lc;
2312 @parents = ($lc);
2313 } else {
2314 $last_rev = $rev;
2315 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2316 return $log_entry;
2317 }
2318 $ed = SVN::Git::Fetcher->new($self);
2319 }
2320 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2321 die "SVN connection failed somewhere...\n";
2322 }
2323 $self->make_log_entry($rev, \@parents, $ed);
2324 }
2325
2326 sub get_untracked {
2327 my ($self, $ed) = @_;
2328 my @out;
2329 my $h = $ed->{empty};
2330 foreach (sort keys %$h) {
2331 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2332 push @out, " $act: " . uri_encode($_);
2333 warn "W: $act: $_\n";
2334 }
2335 foreach my $t (qw/dir_prop file_prop/) {
2336 $h = $ed->{$t} or next;
2337 foreach my $path (sort keys %$h) {
2338 my $ppath = $path eq '' ? '.' : $path;
2339 foreach my $prop (sort keys %{$h->{$path}}) {
2340 next if $SKIP_PROP{$prop};
2341 my $v = $h->{$path}->{$prop};
2342 my $t_ppath_prop = "$t: " .
2343 uri_encode($ppath) . ' ' .
2344 uri_encode($prop);
2345 if (defined $v) {
2346 push @out, " +$t_ppath_prop " .
2347 uri_encode($v);
2348 } else {
2349 push @out, " -$t_ppath_prop";
2350 }
2351 }
2352 }
2353 }
2354 foreach my $t (qw/absent_file absent_directory/) {
2355 $h = $ed->{$t} or next;
2356 foreach my $parent (sort keys %$h) {
2357 foreach my $path (sort @{$h->{$parent}}) {
2358 push @out, " $t: " .
2359 uri_encode("$parent/$path");
2360 warn "W: $t: $parent/$path ",
2361 "Insufficient permissions?\n";
2362 }
2363 }
2364 }
2365 \@out;
2366 }
2367
2368 sub parse_svn_date {
2369 my $date = shift || return '+0000 1970-01-01 00:00:00';
2370 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2371 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
2372 croak "Unable to parse date: $date\n";
2373 "+0000 $Y-$m-$d $H:$M:$S";
2374 }
2375
2376 sub check_author {
2377 my ($author) = @_;
2378 if (!defined $author || length $author == 0) {
2379 $author = '(no author)';
2380 } elsif (defined $::_authors && ! defined $::users{$author}) {
2381 die "Author: $author not defined in $::_authors file\n";
2382 }
2383 $author;
2384 }
2385
2386 sub make_log_entry {
2387 my ($self, $rev, $parents, $ed) = @_;
2388 my $untracked = $self->get_untracked($ed);
2389
2390 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
2391 print $un "r$rev\n" or croak $!;
2392 print $un $_, "\n" foreach @$untracked;
2393 my %log_entry = ( parents => $parents || [], revision => $rev,
2394 log => '');
2395
2396 my $headrev;
2397 my $logged = delete $self->{logged_rev_props};
2398 if (!$logged || $self->{-want_revprops}) {
2399 my $rp = $self->ra->rev_proplist($rev);
2400 foreach (sort keys %$rp) {
2401 my $v = $rp->{$_};
2402 if (/^svn:(author|date|log)$/) {
2403 $log_entry{$1} = $v;
2404 } elsif ($_ eq 'svm:headrev') {
2405 $headrev = $v;
2406 } else {
2407 print $un " rev_prop: ", uri_encode($_), ' ',
2408 uri_encode($v), "\n";
2409 }
2410 }
2411 } else {
2412 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
2413 }
2414 close $un or croak $!;
2415
2416 $log_entry{date} = parse_svn_date($log_entry{date});
2417 $log_entry{log} .= "\n";
2418 my $author = $log_entry{author} = check_author($log_entry{author});
2419 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
2420 : ($author, undef);
2421
2422 my ($commit_name, $commit_email) = ($name, $email);
2423 if ($_use_log_author) {
2424 my $name_field;
2425 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
2426 $name_field = $1;
2427 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
2428 $name_field = $1;
2429 }
2430 if (!defined $name_field) {
2431 if (!defined $email) {
2432 $email = $name;
2433 }
2434 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
2435 ($name, $email) = ($1, $2);
2436 } elsif ($name_field =~ /(.*)@/) {
2437 ($name, $email) = ($1, $name_field);
2438 } else {
2439 ($name, $email) = ($name_field, $name_field);
2440 }
2441 }
2442 if (defined $headrev && $self->use_svm_props) {
2443 if ($self->rewrite_root) {
2444 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
2445 "options set!\n";
2446 }
2447 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
2448 # we don't want "SVM: initializing mirror for junk" ...
2449 return undef if $r == 0;
2450 my $svm = $self->svm;
2451 if ($uuid ne $svm->{uuid}) {
2452 die "UUID mismatch on SVM path:\n",
2453 "expected: $svm->{uuid}\n",
2454 " got: $uuid\n";
2455 }
2456 my $full_url = $self->full_url;
2457 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
2458 die "Failed to replace '$svm->{replace}' with ",
2459 "'$svm->{source}' in $full_url\n";
2460 # throw away username for storing in records
2461 remove_username($full_url);
2462 $log_entry{metadata} = "$full_url\@$r $uuid";
2463 $log_entry{svm_revision} = $r;
2464 $email ||= "$author\@$uuid";
2465 $commit_email ||= "$author\@$uuid";
2466 } elsif ($self->use_svnsync_props) {
2467 my $full_url = $self->svnsync->{url};
2468 $full_url .= "/$self->{path}" if length $self->{path};
2469 remove_username($full_url);
2470 my $uuid = $self->svnsync->{uuid};
2471 $log_entry{metadata} = "$full_url\@$rev $uuid";
2472 $email ||= "$author\@$uuid";
2473 $commit_email ||= "$author\@$uuid";
2474 } else {
2475 my $url = $self->metadata_url;
2476 remove_username($url);
2477 $log_entry{metadata} = "$url\@$rev " .
2478 $self->ra->get_uuid;
2479 $email ||= "$author\@" . $self->ra->get_uuid;
2480 $commit_email ||= "$author\@" . $self->ra->get_uuid;
2481 }
2482 $log_entry{name} = $name;
2483 $log_entry{email} = $email;
2484 $log_entry{commit_name} = $commit_name;
2485 $log_entry{commit_email} = $commit_email;
2486 \%log_entry;
2487 }
2488
2489 sub fetch {
2490 my ($self, $min_rev, $max_rev, @parents) = @_;
2491 my ($last_rev, $last_commit) = $self->last_rev_commit;
2492 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
2493 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
2494 }
2495
2496 sub set_tree_cb {
2497 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2498 $self->{inject_parents} = { $rev => $tree };
2499 $self->fetch(undef, undef);
2500 }
2501
2502 sub set_tree {
2503 my ($self, $tree) = (shift, shift);
2504 my $log_entry = ::get_commit_entry($tree);
2505 unless ($self->{last_rev}) {
2506 fatal("Must have an existing revision to commit");
2507 }
2508 my %ed_opts = ( r => $self->{last_rev},
2509 log => $log_entry->{log},
2510 ra => $self->ra,
2511 tree_a => $self->{last_commit},
2512 tree_b => $tree,
2513 editor_cb => sub {
2514 $self->set_tree_cb($log_entry, $tree, @_) },
2515 svn_path => $self->{path} );
2516 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
2517 print "No changes\nr$self->{last_rev} = $tree\n";
2518 }
2519 }
2520
2521 sub rebuild_from_rev_db {
2522 my ($self, $path) = @_;
2523 my $r = -1;
2524 open my $fh, '<', $path or croak "open: $!";
2525 binmode $fh or croak "binmode: $!";
2526 while (<$fh>) {
2527 length($_) == 41 or croak "inconsistent size in ($_) != 41";
2528 chomp($_);
2529 ++$r;
2530 next if $_ eq ('0' x 40);
2531 $self->rev_map_set($r, $_);
2532 print "r$r = $_\n";
2533 }
2534 close $fh or croak "close: $!";
2535 unlink $path or croak "unlink: $!";
2536 }
2537
2538 sub rebuild {
2539 my ($self) = @_;
2540 my $map_path = $self->map_path;
2541 return if (-e $map_path && ! -z $map_path);
2542 return unless ::verify_ref($self->refname.'^0');
2543 if ($self->use_svm_props || $self->no_metadata) {
2544 my $rev_db = $self->rev_db_path;
2545 $self->rebuild_from_rev_db($rev_db);
2546 if ($self->use_svm_props) {
2547 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
2548 $self->rebuild_from_rev_db($svm_rev_db);
2549 }
2550 $self->unlink_rev_db_symlink;
2551 return;
2552 }
2553 print "Rebuilding $map_path ...\n";
2554 my ($log, $ctx) =
2555 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
2556 $self->refname, '--');
2557 my $full_url = $self->full_url;
2558 remove_username($full_url);
2559 my $svn_uuid = $self->ra_uuid;
2560 my $c;
2561 while (<$log>) {
2562 if ( m{^commit ($::sha1)$} ) {
2563 $c = $1;
2564 next;
2565 }
2566 next unless s{^\s*(git-svn-id:)}{$1};
2567 my ($url, $rev, $uuid) = ::extract_metadata($_);
2568 remove_username($url);
2569
2570 # ignore merges (from set-tree)
2571 next if (!defined $rev || !$uuid);
2572
2573 # if we merged or otherwise started elsewhere, this is
2574 # how we break out of it
2575 if (($uuid ne $svn_uuid) ||
2576 ($full_url && $url && ($url ne $full_url))) {
2577 next;
2578 }
2579
2580 $self->rev_map_set($rev, $c);
2581 print "r$rev = $c\n";
2582 }
2583 command_close_pipe($log, $ctx);
2584 print "Done rebuilding $map_path\n";
2585 my $rev_db_path = $self->rev_db_path;
2586 if (-f $self->rev_db_path) {
2587 unlink $self->rev_db_path or croak "unlink: $!";
2588 }
2589 $self->unlink_rev_db_symlink;
2590 }
2591
2592 # rev_map:
2593 # Tie::File seems to be prone to offset errors if revisions get sparse,
2594 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
2595 # one of my favorite modules is out :< Next up would be one of the DBM
2596 # modules, but I'm not sure which is most portable...
2597 #
2598 # This is the replacement for the rev_db format, which was too big
2599 # and inefficient for large repositories with a lot of sparse history
2600 # (mainly tags)
2601 #
2602 # The format is this:
2603 # - 24 bytes for every record,
2604 # * 4 bytes for the integer representing an SVN revision number
2605 # * 20 bytes representing the sha1 of a git commit
2606 # - No empty padding records like the old format
2607 # (except the last record, which can be overwritten)
2608 # - new records are written append-only since SVN revision numbers
2609 # increase monotonically
2610 # - lookups on SVN revision number are done via a binary search
2611 # - Piping the file to xxd -c24 is a good way of dumping it for
2612 # viewing or editing (piped back through xxd -r), should the need
2613 # ever arise.
2614 # - The last record can be padding revision with an all-zero sha1
2615 # This is used to optimize fetch performance when using multiple
2616 # "fetch" directives in .git/config
2617 #
2618 # These files are disposable unless noMetadata or useSvmProps is set
2619
2620 sub _rev_map_set {
2621 my ($fh, $rev, $commit) = @_;
2622
2623 binmode $fh or croak "binmode: $!";
2624 my $size = (stat($fh))[7];
2625 ($size % 24) == 0 or croak "inconsistent size: $size";
2626
2627 my $wr_offset = 0;
2628 if ($size > 0) {
2629 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2630 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
2631 $read == 24 or croak "read only $read bytes (!= 24)";
2632 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
2633 if ($last_commit eq ('0' x40)) {
2634 if ($size >= 48) {
2635 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2636 $read = sysread($fh, $buf, 24) or
2637 croak "read: $!";
2638 $read == 24 or
2639 croak "read only $read bytes (!= 24)";
2640 ($last_rev, $last_commit) =
2641 unpack(rev_map_fmt, $buf);
2642 if ($last_commit eq ('0' x40)) {
2643 croak "inconsistent .rev_map\n";
2644 }
2645 }
2646 if ($last_rev >= $rev) {
2647 croak "last_rev is higher!: $last_rev >= $rev";
2648 }
2649 $wr_offset = -24;
2650 }
2651 }
2652 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
2653 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
2654 croak "write: $!";
2655 }
2656
2657 sub mkfile {
2658 my ($path) = @_;
2659 unless (-e $path) {
2660 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2661 mkpath([$dir]) unless -d $dir;
2662 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2663 close $fh or die "Couldn't close (create) $path: $!\n";
2664 }
2665 }
2666
2667 sub rev_map_set {
2668 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2669 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2670 my $db = $self->map_path($uuid);
2671 my $db_lock = "$db.lock";
2672 my $sig;
2673 if ($update_ref) {
2674 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2675 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
2676 }
2677 mkfile($db);
2678
2679 $LOCKFILES{$db_lock} = 1;
2680 my $sync;
2681 # both of these options make our .rev_db file very, very important
2682 # and we can't afford to lose it because rebuild() won't work
2683 if ($self->use_svm_props || $self->no_metadata) {
2684 $sync = 1;
2685 copy($db, $db_lock) or die "rev_map_set(@_): ",
2686 "Failed to copy: ",
2687 "$db => $db_lock ($!)\n";
2688 } else {
2689 rename $db, $db_lock or die "rev_map_set(@_): ",
2690 "Failed to rename: ",
2691 "$db => $db_lock ($!)\n";
2692 }
2693
2694 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
2695 or croak "Couldn't open $db_lock: $!\n";
2696 _rev_map_set($fh, $rev, $commit);
2697 if ($sync) {
2698 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2699 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2700 }
2701 close $fh or croak $!;
2702 if ($update_ref) {
2703 $_head = $self;
2704 command_noisy('update-ref', '-m', "r$rev",
2705 $self->refname, $commit);
2706 }
2707 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
2708 "$db_lock => $db ($!)\n";
2709 delete $LOCKFILES{$db_lock};
2710 if ($update_ref) {
2711 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2712 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2713 kill $sig, $$ if defined $sig;
2714 }
2715 }
2716
2717 # If want_commit, this will return an array of (rev, commit) where
2718 # commit _must_ be a valid commit in the archive.
2719 # Otherwise, it'll return the max revision (whether or not the
2720 # commit is valid or just a 0x40 placeholder).
2721 sub rev_map_max {
2722 my ($self, $want_commit) = @_;
2723 $self->rebuild;
2724 my $map_path = $self->map_path;
2725 stat $map_path or return $want_commit ? (0, undef) : 0;
2726 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2727 binmode $fh or croak "binmode: $!";
2728 my $size = (stat($fh))[7];
2729 ($size % 24) == 0 or croak "inconsistent size: $size";
2730
2731 if ($size == 0) {
2732 close $fh or croak "close: $!";
2733 return $want_commit ? (0, undef) : 0;
2734 }
2735
2736 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2737 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2738 my ($r, $c) = unpack(rev_map_fmt, $buf);
2739 if ($want_commit && $c eq ('0' x40)) {
2740 if ($size < 48) {
2741 return $want_commit ? (0, undef) : 0;
2742 }
2743 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2744 sysread($fh, $buf, 24) == 24 or croak "read: $!";
2745 ($r, $c) = unpack(rev_map_fmt, $buf);
2746 if ($c eq ('0'x40)) {
2747 croak "Penultimate record is all-zeroes in $map_path";
2748 }
2749 }
2750 close $fh or croak "close: $!";
2751 $want_commit ? ($r, $c) : $r;
2752 }
2753
2754 sub rev_map_get {
2755 my ($self, $rev, $uuid) = @_;
2756 my $map_path = $self->map_path($uuid);
2757 return undef unless -e $map_path;
2758
2759 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2760 binmode $fh or croak "binmode: $!";
2761 my $size = (stat($fh))[7];
2762 ($size % 24) == 0 or croak "inconsistent size: $size";
2763
2764 if ($size == 0) {
2765 close $fh or croak "close: $fh";
2766 return undef;
2767 }
2768
2769 my ($l, $u) = (0, $size - 24);
2770 my ($r, $c, $buf);
2771
2772 while ($l <= $u) {
2773 my $i = int(($l/24 + $u/24) / 2) * 24;
2774 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
2775 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2776 my ($r, $c) = unpack('NH40', $buf);
2777
2778 if ($r < $rev) {
2779 $l = $i + 24;
2780 } elsif ($r > $rev) {
2781 $u = $i - 24;
2782 } else { # $r == $rev
2783 close($fh) or croak "close: $!";
2784 return $c eq ('0' x 40) ? undef : $c;
2785 }
2786 }
2787 close($fh) or croak "close: $!";
2788 undef;
2789 }
2790
2791 # Finds the first svn revision that exists on (if $eq_ok is true) or
2792 # before $rev for the current branch. It will not search any lower
2793 # than $min_rev. Returns the git commit hash and svn revision number
2794 # if found, else (undef, undef).
2795 sub find_rev_before {
2796 my ($self, $rev, $eq_ok, $min_rev) = @_;
2797 --$rev unless $eq_ok;
2798 $min_rev ||= 1;
2799 while ($rev >= $min_rev) {
2800 if (my $c = $self->rev_map_get($rev)) {
2801 return ($rev, $c);
2802 }
2803 --$rev;
2804 }
2805 return (undef, undef);
2806 }
2807
2808 # Finds the first svn revision that exists on (if $eq_ok is true) or
2809 # after $rev for the current branch. It will not search any higher
2810 # than $max_rev. Returns the git commit hash and svn revision number
2811 # if found, else (undef, undef).
2812 sub find_rev_after {
2813 my ($self, $rev, $eq_ok, $max_rev) = @_;
2814 ++$rev unless $eq_ok;
2815 $max_rev ||= $self->rev_map_max;
2816 while ($rev <= $max_rev) {
2817 if (my $c = $self->rev_map_get($rev)) {
2818 return ($rev, $c);
2819 }
2820 ++$rev;
2821 }
2822 return (undef, undef);
2823 }
2824
2825 sub _new {
2826 my ($class, $repo_id, $ref_id, $path) = @_;
2827 unless (defined $repo_id && length $repo_id) {
2828 $repo_id = $Git::SVN::default_repo_id;
2829 }
2830 unless (defined $ref_id && length $ref_id) {
2831 $_[2] = $ref_id = $Git::SVN::default_ref_id;
2832 }
2833 $_[1] = $repo_id = sanitize_remote_name($repo_id);
2834 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2835 $_[3] = $path = '' unless (defined $path);
2836 mkpath(["$ENV{GIT_DIR}/svn"]);
2837 bless {
2838 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2839 path => $path, config => "$ENV{GIT_DIR}/svn/config",
2840 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
2841 }
2842
2843 # for read-only access of old .rev_db formats
2844 sub unlink_rev_db_symlink {
2845 my ($self) = @_;
2846 my $link = $self->rev_db_path;
2847 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
2848 if (-l $link) {
2849 unlink $link or croak "unlink: $link failed!";
2850 }
2851 }
2852
2853 sub rev_db_path {
2854 my ($self, $uuid) = @_;
2855 my $db_path = $self->map_path($uuid);
2856 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
2857 or croak "map_path: $db_path does not contain '/.rev_map.' !";
2858 $db_path;
2859 }
2860
2861 # the new replacement for .rev_db
2862 sub map_path {
2863 my ($self, $uuid) = @_;
2864 $uuid ||= $self->ra_uuid;
2865 "$self->{map_root}.$uuid";
2866 }
2867
2868 sub uri_encode {
2869 my ($f) = @_;
2870 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2871 $f
2872 }
2873
2874 sub remove_username {
2875 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
2876 }
2877
2878 package Git::SVN::Prompt;
2879 use strict;
2880 use warnings;
2881 require SVN::Core;
2882 use vars qw/$_no_auth_cache $_username/;
2883
2884 sub simple {
2885 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2886 $may_save = undef if $_no_auth_cache;
2887 $default_username = $_username if defined $_username;
2888 if (defined $default_username && length $default_username) {
2889 if (defined $realm && length $realm) {
2890 print STDERR "Authentication realm: $realm\n";
2891 STDERR->flush;
2892 }
2893 $cred->username($default_username);
2894 } else {
2895 username($cred, $realm, $may_save, $pool);
2896 }
2897 $cred->password(_read_password("Password for '" .
2898 $cred->username . "': ", $realm));
2899 $cred->may_save($may_save);
2900 $SVN::_Core::SVN_NO_ERROR;
2901 }
2902
2903 sub ssl_server_trust {
2904 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2905 $may_save = undef if $_no_auth_cache;
2906 print STDERR "Error validating server certificate for '$realm':\n";
2907 {
2908 no warnings 'once';
2909 # All variables SVN::Auth::SSL::* are used only once,
2910 # so we're shutting up Perl warnings about this.
2911 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2912 print STDERR " - The certificate is not issued ",
2913 "by a trusted authority. Use the\n",
2914 " fingerprint to validate ",
2915 "the certificate manually!\n";
2916 }
2917 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2918 print STDERR " - The certificate hostname ",
2919 "does not match.\n";
2920 }
2921 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2922 print STDERR " - The certificate is not yet valid.\n";
2923 }
2924 if ($failures & $SVN::Auth::SSL::EXPIRED) {
2925 print STDERR " - The certificate has expired.\n";
2926 }
2927 if ($failures & $SVN::Auth::SSL::OTHER) {
2928 print STDERR " - The certificate has ",
2929 "an unknown error.\n";
2930 }
2931 } # no warnings 'once'
2932 printf STDERR
2933 "Certificate information:\n".
2934 " - Hostname: %s\n".
2935 " - Valid: from %s until %s\n".
2936 " - Issuer: %s\n".
2937 " - Fingerprint: %s\n",
2938 map $cert_info->$_, qw(hostname valid_from valid_until
2939 issuer_dname fingerprint);
2940 my $choice;
2941 prompt:
2942 print STDERR $may_save ?
2943 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
2944 "(R)eject or accept (t)emporarily? ";
2945 STDERR->flush;
2946 $choice = lc(substr(<STDIN> || 'R', 0, 1));
2947 if ($choice =~ /^t$/i) {
2948 $cred->may_save(undef);
2949 } elsif ($choice =~ /^r$/i) {
2950 return -1;
2951 } elsif ($may_save && $choice =~ /^p$/i) {
2952 $cred->may_save($may_save);
2953 } else {
2954 goto prompt;
2955 }
2956 $cred->accepted_failures($failures);
2957 $SVN::_Core::SVN_NO_ERROR;
2958 }
2959
2960 sub ssl_client_cert {
2961 my ($cred, $realm, $may_save, $pool) = @_;
2962 $may_save = undef if $_no_auth_cache;
2963 print STDERR "Client certificate filename: ";
2964 STDERR->flush;
2965 chomp(my $filename = <STDIN>);
2966 $cred->cert_file($filename);
2967 $cred->may_save($may_save);
2968 $SVN::_Core::SVN_NO_ERROR;
2969 }
2970
2971 sub ssl_client_cert_pw {
2972 my ($cred, $realm, $may_save, $pool) = @_;
2973 $may_save = undef if $_no_auth_cache;
2974 $cred->password(_read_password("Password: ", $realm));
2975 $cred->may_save($may_save);
2976 $SVN::_Core::SVN_NO_ERROR;
2977 }
2978
2979 sub username {
2980 my ($cred, $realm, $may_save, $pool) = @_;
2981 $may_save = undef if $_no_auth_cache;
2982 if (defined $realm && length $realm) {
2983 print STDERR "Authentication realm: $realm\n";
2984 }
2985 my $username;
2986 if (defined $_username) {
2987 $username = $_username;
2988 } else {
2989 print STDERR "Username: ";
2990 STDERR->flush;
2991 chomp($username = <STDIN>);
2992 }
2993 $cred->username($username);
2994 $cred->may_save($may_save);
2995 $SVN::_Core::SVN_NO_ERROR;
2996 }
2997
2998 sub _read_password {
2999 my ($prompt, $realm) = @_;
3000 print STDERR $prompt;
3001 STDERR->flush;
3002 require Term::ReadKey;
3003 Term::ReadKey::ReadMode('noecho');
3004 my $password = '';
3005 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3006 last if $key =~ /[\012\015]/; # \n\r
3007 $password .= $key;
3008 }
3009 Term::ReadKey::ReadMode('restore');
3010 print STDERR "\n";
3011 STDERR->flush;
3012 $password;
3013 }
3014
3015 package SVN::Git::Fetcher;
3016 use vars qw/@ISA/;
3017 use strict;
3018 use warnings;
3019 use Carp qw/croak/;
3020 use IO::File qw//;
3021
3022 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3023 sub new {
3024 my ($class, $git_svn) = @_;
3025 my $self = SVN::Delta::Editor->new;
3026 bless $self, $class;
3027 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
3028 $self->{empty} = {};
3029 $self->{dir_prop} = {};
3030 $self->{file_prop} = {};
3031 $self->{absent_dir} = {};
3032 $self->{absent_file} = {};
3033 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3034 $self;
3035 }
3036
3037 sub set_path_strip {
3038 my ($self, $path) = @_;
3039 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3040 }
3041
3042 sub open_root {
3043 { path => '' };
3044 }
3045
3046 sub open_directory {
3047 my ($self, $path, $pb, $rev) = @_;
3048 { path => $path };
3049 }
3050
3051 sub git_path {
3052 my ($self, $path) = @_;
3053 if ($self->{path_strip}) {
3054 $path =~ s!$self->{path_strip}!! or
3055 die "Failed to strip path '$path' ($self->{path_strip})\n";
3056 }
3057 $path;
3058 }
3059
3060 sub delete_entry {
3061 my ($self, $path, $rev, $pb) = @_;
3062
3063 my $gpath = $self->git_path($path);
3064 return undef if ($gpath eq '');
3065
3066 # remove entire directories.
3067 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
3068 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3069 -r --name-only -z/,
3070 $self->{c}, '--', $gpath);
3071 local $/ = "\0";
3072 while (<$ls>) {
3073 chomp;
3074 $self->{gii}->remove($_);
3075 print "\tD\t$_\n" unless $::_q;
3076 }
3077 print "\tD\t$gpath/\n" unless $::_q;
3078 command_close_pipe($ls, $ctx);
3079 $self->{empty}->{$path} = 0
3080 } else {
3081 $self->{gii}->remove($gpath);
3082 print "\tD\t$gpath\n" unless $::_q;
3083 }
3084 undef;
3085 }
3086
3087 sub open_file {
3088 my ($self, $path, $pb, $rev) = @_;
3089 my $gpath = $self->git_path($path);
3090 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
3091 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
3092 unless (defined $mode && defined $blob) {
3093 die "$path was not found in commit $self->{c} (r$rev)\n";
3094 }
3095 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3096 pool => SVN::Pool->new, action => 'M' };
3097 }
3098
3099 sub add_file {
3100 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3101 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3102 delete $self->{empty}->{$dir};
3103 { path => $path, mode_a => 100644, mode_b => 100644,
3104 pool => SVN::Pool->new, action => 'A' };
3105 }
3106
3107 sub add_directory {
3108 my ($self, $path, $cp_path, $cp_rev) = @_;
3109 my $gpath = $self->git_path($path);
3110 if ($gpath eq '') {
3111 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3112 -r --name-only -z/,
3113 $self->{c});
3114 local $/ = "\0";
3115 while (<$ls>) {
3116 chomp;
3117 $self->{gii}->remove($_);
3118 print "\tD\t$_\n" unless $::_q;
3119 }
3120 command_close_pipe($ls, $ctx);
3121 $self->{empty}->{$path} = 0;
3122 }
3123 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3124 delete $self->{empty}->{$dir};
3125 $self->{empty}->{$path} = 1;
3126 { path => $path };
3127 }
3128
3129 sub change_dir_prop {
3130 my ($self, $db, $prop, $value) = @_;
3131 $self->{dir_prop}->{$db->{path}} ||= {};
3132 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
3133 undef;
3134 }
3135
3136 sub absent_directory {
3137 my ($self, $path, $pb) = @_;
3138 $self->{absent_dir}->{$pb->{path}} ||= [];
3139 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
3140 undef;
3141 }
3142
3143 sub absent_file {
3144 my ($self, $path, $pb) = @_;
3145 $self->{absent_file}->{$pb->{path}} ||= [];
3146 push @{$self->{absent_file}->{$pb->{path}}}, $path;
3147 undef;
3148 }
3149
3150 sub change_file_prop {
3151 my ($self, $fb, $prop, $value) = @_;
3152 if ($prop eq 'svn:executable') {
3153 if ($fb->{mode_b} != 120000) {
3154 $fb->{mode_b} = defined $value ? 100755 : 100644;
3155 }
3156 } elsif ($prop eq 'svn:special') {
3157 $fb->{mode_b} = defined $value ? 120000 : 100644;
3158 } else {
3159 $self->{file_prop}->{$fb->{path}} ||= {};
3160 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
3161 }
3162 undef;
3163 }
3164
3165 sub apply_textdelta {
3166 my ($self, $fb, $exp) = @_;
3167 my $fh = IO::File->new_tmpfile;
3168 $fh->autoflush(1);
3169 # $fh gets auto-closed() by SVN::TxDelta::apply(),
3170 # (but $base does not,) so dup() it for reading in close_file
3171 open my $dup, '<&', $fh or croak $!;
3172 my $base = IO::File->new_tmpfile;
3173 $base->autoflush(1);
3174 if ($fb->{blob}) {
3175 defined (my $pid = fork) or croak $!;
3176 if (!$pid) {
3177 open STDOUT, '>&', $base or croak $!;
3178 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
3179 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
3180 }
3181 waitpid $pid, 0;
3182 croak $? if $?;
3183
3184 if (defined $exp) {
3185 seek $base, 0, 0 or croak $!;
3186 my $got = ::md5sum($base);
3187 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
3188 "expected: $exp\n",
3189 " got: $got\n" if ($got ne $exp);
3190 }
3191 }
3192 seek $base, 0, 0 or croak $!;
3193 $fb->{fh} = $dup;
3194 $fb->{base} = $base;
3195 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
3196 }
3197
3198 sub close_file {
3199 my ($self, $fb, $exp) = @_;
3200 my $hash;
3201 my $path = $self->git_path($fb->{path});
3202 if (my $fh = $fb->{fh}) {
3203 if (defined $exp) {
3204 seek($fh, 0, 0) or croak $!;
3205 my $got = ::md5sum($fh);
3206 if ($got ne $exp) {
3207 die "Checksum mismatch: $path\n",
3208 "expected: $exp\n got: $got\n";
3209 }
3210 }
3211 sysseek($fh, 0, 0) or croak $!;
3212 if ($fb->{mode_b} == 120000) {
3213 eval {
3214 sysread($fh, my $buf, 5) == 5 or croak $!;
3215 $buf eq 'link ' or die "$path has mode 120000",
3216 " but is not a link";
3217 };
3218 if ($@) {
3219 warn "$@\n";
3220 sysseek($fh, 0, 0) or croak $!;
3221 }
3222 }
3223 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
3224 if (!$pid) {
3225 open STDIN, '<&', $fh or croak $!;
3226 exec qw/git-hash-object -w --stdin/ or croak $!;
3227 }
3228 chomp($hash = do { local $/; <$out> });
3229 close $out or croak $!;
3230 close $fh or croak $!;
3231 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
3232 close $fb->{base} or croak $!;
3233 } else {
3234 $hash = $fb->{blob} or die "no blob information\n";
3235 }
3236 $fb->{pool}->clear;
3237 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
3238 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
3239 undef;
3240 }
3241
3242 sub abort_edit {
3243 my $self = shift;
3244 $self->{nr} = $self->{gii}->{nr};
3245 delete $self->{gii};
3246 $self->SUPER::abort_edit(@_);
3247 }
3248
3249 sub close_edit {
3250 my $self = shift;
3251 $self->{git_commit_ok} = 1;
3252 $self->{nr} = $self->{gii}->{nr};
3253 delete $self->{gii};
3254 $self->SUPER::close_edit(@_);
3255 }
3256
3257 package SVN::Git::Editor;
3258 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
3259 use strict;
3260 use warnings;
3261 use Carp qw/croak/;
3262 use IO::File;
3263
3264 sub new {
3265 my ($class, $opts) = @_;
3266 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
3267 die "$_ required!\n" unless (defined $opts->{$_});
3268 }
3269
3270 my $pool = SVN::Pool->new;
3271 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
3272 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
3273 $opts->{r}, $mods);
3274
3275 # $opts->{ra} functions should not be used after this:
3276 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
3277 $opts->{editor_cb}, $pool);
3278 my $self = SVN::Delta::Editor->new(@ce, $pool);
3279 bless $self, $class;
3280 foreach (qw/svn_path r tree_a tree_b/) {
3281 $self->{$_} = $opts->{$_};
3282 }
3283 $self->{url} = $opts->{ra}->{url};
3284 $self->{mods} = $mods;
3285 $self->{types} = $types;
3286 $self->{pool} = $pool;
3287 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
3288 $self->{rm} = { };
3289