git-svn: Make following parents atomic
[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 $_repository
8 $_q $_authors %users/;
9 $AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
10 $VERSION = '@@GIT_VERSION@@';
11
12 # From which subdir have we been invoked?
13 my $cmd_dir_prefix = eval {
14 command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
15 } || '';
16
17 my $git_dir_user_set = 1 if defined $ENV{GIT_DIR};
18 $ENV{GIT_DIR} ||= '.git';
19 $Git::SVN::default_repo_id = 'svn';
20 $Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
21 $Git::SVN::Ra::_log_window_size = 100;
22
23 $Git::SVN::Log::TZ = $ENV{TZ};
24 $ENV{TZ} = 'UTC';
25 $| = 1; # unbuffer STDOUT
26
27 sub fatal (@) { print STDERR "@_\n"; exit 1 }
28 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
29 require SVN::Ra;
30 require SVN::Delta;
31 if ($SVN::Core::VERSION lt '1.1.0') {
32 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
33 }
34 push @Git::SVN::Ra::ISA, 'SVN::Ra';
35 push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
36 push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
37 use Carp qw/croak/;
38 use Digest::MD5;
39 use IO::File qw//;
40 use File::Basename qw/dirname basename/;
41 use File::Path qw/mkpath/;
42 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
43 use IPC::Open3;
44 use Git;
45
46 BEGIN {
47 # import functions from Git into our packages, en masse
48 no strict 'refs';
49 foreach (qw/command command_oneline command_noisy command_output_pipe
50 command_input_pipe command_close_pipe/) {
51 for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher
52 Git::SVN::Migration Git::SVN::Log Git::SVN),
53 __PACKAGE__) {
54 *{"${package}::$_"} = \&{"Git::$_"};
55 }
56 }
57 }
58
59 my ($SVN);
60
61 $sha1 = qr/[a-f\d]{40}/;
62 $sha1_short = qr/[a-f\d]{4,40}/;
63 my ($_stdin, $_help, $_edit,
64 $_message, $_file,
65 $_template, $_shared,
66 $_version, $_fetch_all, $_no_rebase,
67 $_merge, $_strategy, $_dry_run, $_local,
68 $_prefix, $_no_checkout, $_url, $_verbose,
69 $_git_format, $_commit_url);
70 $Git::SVN::_follow_parent = 1;
71 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
72 'config-dir=s' => \$Git::SVN::Ra::config_dir,
73 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache );
74 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
75 'authors-file|A=s' => \$_authors,
76 'repack:i' => \$Git::SVN::_repack,
77 'noMetadata' => \$Git::SVN::_no_metadata,
78 'useSvmProps' => \$Git::SVN::_use_svm_props,
79 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
80 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
81 'no-checkout' => \$_no_checkout,
82 'quiet|q' => \$_q,
83 'repack-flags|repack-args|repack-opts=s' =>
84 \$Git::SVN::_repack_flags,
85 'use-log-author' => \$Git::SVN::_use_log_author,
86 'add-author-from' => \$Git::SVN::_add_author_from,
87 %remote_opts );
88
89 my ($_trunk, $_tags, $_branches, $_stdlayout);
90 my %icv;
91 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
92 'trunk|T=s' => \$_trunk, 'tags|t=s' => \$_tags,
93 'branches|b=s' => \$_branches, 'prefix=s' => \$_prefix,
94 'stdlayout|s' => \$_stdlayout,
95 'minimize-url|m' => \$Git::SVN::_minimize_url,
96 'no-metadata' => sub { $icv{noMetadata} = 1 },
97 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
98 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
99 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
100 %remote_opts );
101 my %cmt_opts = ( 'edit|e' => \$_edit,
102 'rmdir' => \$SVN::Git::Editor::_rmdir,
103 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
104 'l=i' => \$SVN::Git::Editor::_rename_limit,
105 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
106 );
107
108 my %cmd = (
109 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
110 { 'revision|r=s' => \$_revision,
111 'fetch-all|all' => \$_fetch_all,
112 %fc_opts } ],
113 clone => [ \&cmd_clone, "Initialize and fetch revisions",
114 { 'revision|r=s' => \$_revision,
115 %fc_opts, %init_opts } ],
116 init => [ \&cmd_init, "Initialize a repo for tracking" .
117 " (requires URL argument)",
118 \%init_opts ],
119 'multi-init' => [ \&cmd_multi_init,
120 "Deprecated alias for ".
121 "'$0 init -T<trunk> -b<branches> -t<tags>'",
122 \%init_opts ],
123 dcommit => [ \&cmd_dcommit,
124 'Commit several diffs to merge with upstream',
125 { 'merge|m|M' => \$_merge,
126 'strategy|s=s' => \$_strategy,
127 'verbose|v' => \$_verbose,
128 'dry-run|n' => \$_dry_run,
129 'fetch-all|all' => \$_fetch_all,
130 'commit-url=s' => \$_commit_url,
131 'revision|r=i' => \$_revision,
132 'no-rebase' => \$_no_rebase,
133 %cmt_opts, %fc_opts } ],
134 'set-tree' => [ \&cmd_set_tree,
135 "Set an SVN repository to a git tree-ish",
136 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
137 'create-ignore' => [ \&cmd_create_ignore,
138 'Create a .gitignore per svn:ignore',
139 { 'revision|r=i' => \$_revision
140 } ],
141 'propget' => [ \&cmd_propget,
142 'Print the value of a property on a file or directory',
143 { 'revision|r=i' => \$_revision } ],
144 'proplist' => [ \&cmd_proplist,
145 'List all properties of a file or directory',
146 { 'revision|r=i' => \$_revision } ],
147 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
148 { 'revision|r=i' => \$_revision
149 } ],
150 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
151 { 'revision|r=i' => \$_revision
152 } ],
153 'multi-fetch' => [ \&cmd_multi_fetch,
154 "Deprecated alias for $0 fetch --all",
155 { 'revision|r=s' => \$_revision, %fc_opts } ],
156 'migrate' => [ sub { },
157 # no-op, we automatically run this anyways,
158 'Migrate configuration/metadata/layout from
159 previous versions of git-svn',
160 { 'minimize' => \$Git::SVN::Migration::_minimize,
161 %remote_opts } ],
162 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
163 { 'limit=i' => \$Git::SVN::Log::limit,
164 'revision|r=s' => \$_revision,
165 'verbose|v' => \$Git::SVN::Log::verbose,
166 'incremental' => \$Git::SVN::Log::incremental,
167 'oneline' => \$Git::SVN::Log::oneline,
168 'show-commit' => \$Git::SVN::Log::show_commit,
169 'non-recursive' => \$Git::SVN::Log::non_recursive,
170 'authors-file|A=s' => \$_authors,
171 'color' => \$Git::SVN::Log::color,
172 'pager=s' => \$Git::SVN::Log::pager
173 } ],
174 'find-rev' => [ \&cmd_find_rev,
175 "Translate between SVN revision numbers and tree-ish",
176 {} ],
177 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
178 { 'merge|m|M' => \$_merge,
179 'verbose|v' => \$_verbose,
180 'strategy|s=s' => \$_strategy,
181 'local|l' => \$_local,
182 'fetch-all|all' => \$_fetch_all,
183 'dry-run|n' => \$_dry_run,
184 %fc_opts } ],
185 'commit-diff' => [ \&cmd_commit_diff,
186 'Commit a diff between two trees',
187 { 'message|m=s' => \$_message,
188 'file|F=s' => \$_file,
189 'revision|r=s' => \$_revision,
190 %cmt_opts } ],
191 'info' => [ \&cmd_info,
192 "Show info about the latest SVN revision
193 on the current branch",
194 { 'url' => \$_url, } ],
195 'blame' => [ \&Git::SVN::Log::cmd_blame,
196 "Show what revision and author last modified each line of a file",
197 { 'git-format' => \$_git_format } ],
198 );
199
200 my $cmd;
201 for (my $i = 0; $i < @ARGV; $i++) {
202 if (defined $cmd{$ARGV[$i]}) {
203 $cmd = $ARGV[$i];
204 splice @ARGV, $i, 1;
205 last;
206 }
207 };
208
209 # make sure we're always running at the top-level working directory
210 unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
211 unless (-d $ENV{GIT_DIR}) {
212 if ($git_dir_user_set) {
213 die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ",
214 "but it is not a directory\n";
215 }
216 my $git_dir = delete $ENV{GIT_DIR};
217 chomp(my $cdup = command_oneline(qw/rev-parse --show-cdup/));
218 unless (length $cdup) {
219 die "Already at toplevel, but $git_dir ",
220 "not found '$cdup'\n";
221 }
222 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
223 unless (-d $git_dir) {
224 die "$git_dir still not found after going to ",
225 "'$cdup'\n";
226 }
227 $ENV{GIT_DIR} = $git_dir;
228 }
229 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
230 }
231
232 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
233
234 read_repo_config(\%opts);
235 if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
236 Getopt::Long::Configure('pass_through');
237 }
238 my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
239 'minimize-connections' => \$Git::SVN::Migration::_minimize,
240 'id|i=s' => \$Git::SVN::default_ref_id,
241 'svn-remote|remote|R=s' => sub {
242 $Git::SVN::no_reuse_existing = 1;
243 $Git::SVN::default_repo_id = $_[1] });
244 exit 1 if (!$rv && $cmd && $cmd ne 'log');
245
246 usage(0) if $_help;
247 version() if $_version;
248 usage(1) unless defined $cmd;
249 load_authors() if $_authors;
250
251 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
252 Git::SVN::Migration::migration_check();
253 }
254 Git::SVN::init_vars();
255 eval {
256 Git::SVN::verify_remotes_sanity();
257 $cmd{$cmd}->[0]->(@ARGV);
258 };
259 fatal $@ if $@;
260 post_fetch_checkout();
261 exit 0;
262
263 ####################### primary functions ######################
264 sub usage {
265 my $exit = shift || 0;
266 my $fd = $exit ? \*STDERR : \*STDOUT;
267 print $fd <<"";
268 git-svn - bidirectional operations between a single Subversion tree and git
269 Usage: git svn <command> [options] [arguments]\n
270
271 print $fd "Available commands:\n" unless $cmd;
272
273 foreach (sort keys %cmd) {
274 next if $cmd && $cmd ne $_;
275 next if /^multi-/; # don't show deprecated commands
276 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
277 foreach (sort keys %{$cmd{$_}->[2]}) {
278 # mixed-case options are for .git/config only
279 next if /[A-Z]/ && /^[a-z]+$/i;
280 # prints out arguments as they should be passed:
281 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
282 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
283 "--$_" : "-$_" }
284 split /\|/,$_)," $x\n";
285 }
286 }
287 print $fd <<"";
288 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
289 arbitrary identifier if you're tracking multiple SVN branches/repositories in
290 one git repository and want to keep them separate. See git-svn(1) for more
291 information.
292
293 exit $exit;
294 }
295
296 sub version {
297 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
298 exit 0;
299 }
300
301 sub do_git_init_db {
302 unless (-d $ENV{GIT_DIR}) {
303 my @init_db = ('init');
304 push @init_db, "--template=$_template" if defined $_template;
305 if (defined $_shared) {
306 if ($_shared =~ /[a-z]/) {
307 push @init_db, "--shared=$_shared";
308 } else {
309 push @init_db, "--shared";
310 }
311 }
312 command_noisy(@init_db);
313 $_repository = Git->repository(Repository => ".git");
314 }
315 my $set;
316 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
317 foreach my $i (keys %icv) {
318 die "'$set' and '$i' cannot both be set\n" if $set;
319 next unless defined $icv{$i};
320 command_noisy('config', "$pfx.$i", $icv{$i});
321 $set = $i;
322 }
323 }
324
325 sub init_subdir {
326 my $repo_path = shift or return;
327 mkpath([$repo_path]) unless -d $repo_path;
328 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
329 $ENV{GIT_DIR} = '.git';
330 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
331 }
332
333 sub cmd_clone {
334 my ($url, $path) = @_;
335 if (!defined $path &&
336 (defined $_trunk || defined $_branches || defined $_tags ||
337 defined $_stdlayout) &&
338 $url !~ m#^[a-z\+]+://#) {
339 $path = $url;
340 }
341 $path = basename($url) if !defined $path || !length $path;
342 cmd_init($url, $path);
343 Git::SVN::fetch_all($Git::SVN::default_repo_id);
344 }
345
346 sub cmd_init {
347 if (defined $_stdlayout) {
348 $_trunk = 'trunk' if (!defined $_trunk);
349 $_tags = 'tags' if (!defined $_tags);
350 $_branches = 'branches' if (!defined $_branches);
351 }
352 if (defined $_trunk || defined $_branches || defined $_tags) {
353 return cmd_multi_init(@_);
354 }
355 my $url = shift or die "SVN repository location required ",
356 "as a command-line argument\n";
357 init_subdir(@_);
358 do_git_init_db();
359
360 Git::SVN->init($url);
361 }
362
363 sub cmd_fetch {
364 if (grep /^\d+=./, @_) {
365 die "'<rev>=<commit>' fetch arguments are ",
366 "no longer supported.\n";
367 }
368 my ($remote) = @_;
369 if (@_ > 1) {
370 die "Usage: $0 fetch [--all] [svn-remote]\n";
371 }
372 $remote ||= $Git::SVN::default_repo_id;
373 if ($_fetch_all) {
374 cmd_multi_fetch();
375 } else {
376 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
377 }
378 }
379
380 sub cmd_set_tree {
381 my (@commits) = @_;
382 if ($_stdin || !@commits) {
383 print "Reading from stdin...\n";
384 @commits = ();
385 while (<STDIN>) {
386 if (/\b($sha1_short)\b/o) {
387 unshift @commits, $1;
388 }
389 }
390 }
391 my @revs;
392 foreach my $c (@commits) {
393 my @tmp = command('rev-parse',$c);
394 if (scalar @tmp == 1) {
395 push @revs, $tmp[0];
396 } elsif (scalar @tmp > 1) {
397 push @revs, reverse(command('rev-list',@tmp));
398 } else {
399 fatal "Failed to rev-parse $c";
400 }
401 }
402 my $gs = Git::SVN->new;
403 my ($r_last, $cmt_last) = $gs->last_rev_commit;
404 $gs->fetch;
405 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
406 fatal "There are new revisions that were fetched ",
407 "and need to be merged (or acknowledged) ",
408 "before committing.\nlast rev: $r_last\n",
409 " current: $gs->{last_rev}";
410 }
411 $gs->set_tree($_) foreach @revs;
412 print "Done committing ",scalar @revs," revisions to SVN\n";
413 unlink $gs->{index};
414 }
415
416 sub cmd_dcommit {
417 my $head = shift;
418 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) }
419 'Cannot dcommit with a dirty index. Commit your changes first, '
420 . "or stash them with `git stash'.\n";
421 $head ||= 'HEAD';
422 my @refs;
423 my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
424 $url = defined $_commit_url ? $_commit_url : $gs->full_url;
425 my $last_rev = $_revision if defined $_revision;
426 if ($url) {
427 print "Committing to $url ...\n";
428 }
429 unless ($gs) {
430 die "Unable to determine upstream SVN information from ",
431 "$head history.\nPerhaps the repository is empty.";
432 }
433 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
434 if ($_no_rebase && scalar(@$linear_refs) > 1) {
435 warn "Attempting to commit more than one change while ",
436 "--no-rebase is enabled.\n",
437 "If these changes depend on each other, re-running ",
438 "without --no-rebase may be required."
439 }
440 my $expect_url = $url;
441 Git::SVN::remove_username($expect_url);
442 while (1) {
443 my $d = shift @$linear_refs or last;
444 unless (defined $last_rev) {
445 (undef, $last_rev, undef) = cmt_metadata("$d~1");
446 unless (defined $last_rev) {
447 fatal "Unable to extract revision information ",
448 "from commit $d~1";
449 }
450 }
451 if ($_dry_run) {
452 print "diff-tree $d~1 $d\n";
453 } else {
454 my $cmt_rev;
455 my %ed_opts = ( r => $last_rev,
456 log => get_commit_entry($d)->{log},
457 ra => Git::SVN::Ra->new($url),
458 config => SVN::Core::config_get_config(
459 $Git::SVN::Ra::config_dir
460 ),
461 tree_a => "$d~1",
462 tree_b => $d,
463 editor_cb => sub {
464 print "Committed r$_[0]\n";
465 $cmt_rev = $_[0];
466 },
467 svn_path => '');
468 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
469 print "No changes\n$d~1 == $d\n";
470 } elsif ($parents->{$d} && @{$parents->{$d}}) {
471 $gs->{inject_parents_dcommit}->{$cmt_rev} =
472 $parents->{$d};
473 }
474 $_fetch_all ? $gs->fetch_all : $gs->fetch;
475 $last_rev = $cmt_rev;
476 next if $_no_rebase;
477
478 # we always want to rebase against the current HEAD,
479 # not any head that was passed to us
480 my @diff = command('diff-tree', $d,
481 $gs->refname, '--');
482 my @finish;
483 if (@diff) {
484 @finish = rebase_cmd();
485 print STDERR "W: $d and ", $gs->refname,
486 " differ, using @finish:\n",
487 join("\n", @diff), "\n";
488 } else {
489 print "No changes between current HEAD and ",
490 $gs->refname,
491 "\nResetting to the latest ",
492 $gs->refname, "\n";
493 @finish = qw/reset --mixed/;
494 }
495 command_noisy(@finish, $gs->refname);
496 if (@diff) {
497 @refs = ();
498 my ($url_, $rev_, $uuid_, $gs_) =
499 working_head_info($head, \@refs);
500 my ($linear_refs_, $parents_) =
501 linearize_history($gs_, \@refs);
502 if (scalar(@$linear_refs) !=
503 scalar(@$linear_refs_)) {
504 fatal "# of revisions changed ",
505 "\nbefore:\n",
506 join("\n", @$linear_refs),
507 "\n\nafter:\n",
508 join("\n", @$linear_refs_), "\n",
509 'If you are attempting to commit ',
510 "merges, try running:\n\t",
511 'git rebase --interactive',
512 '--preserve-merges ',
513 $gs->refname,
514 "\nBefore dcommitting";
515 }
516 if ($url_ ne $expect_url) {
517 fatal "URL mismatch after rebase: ",
518 "$url_ != $expect_url";
519 }
520 if ($uuid_ ne $uuid) {
521 fatal "uuid mismatch after rebase: ",
522 "$uuid_ != $uuid";
523 }
524 # remap parents
525 my (%p, @l, $i);
526 for ($i = 0; $i < scalar @$linear_refs; $i++) {
527 my $new = $linear_refs_->[$i] or next;
528 $p{$new} =
529 $parents->{$linear_refs->[$i]};
530 push @l, $new;
531 }
532 $parents = \%p;
533 $linear_refs = \@l;
534 }
535 }
536 }
537 unlink $gs->{index};
538 }
539
540 sub cmd_find_rev {
541 my $revision_or_hash = shift or die "SVN or git revision required ",
542 "as a command-line argument\n";
543 my $result;
544 if ($revision_or_hash =~ /^r\d+$/) {
545 my $head = shift;
546 $head ||= 'HEAD';
547 my @refs;
548 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
549 unless ($gs) {
550 die "Unable to determine upstream SVN information from ",
551 "$head history\n";
552 }
553 my $desired_revision = substr($revision_or_hash, 1);
554 $result = $gs->rev_map_get($desired_revision, $uuid);
555 } else {
556 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
557 $result = $rev;
558 }
559 print "$result\n" if $result;
560 }
561
562 sub cmd_rebase {
563 command_noisy(qw/update-index --refresh/);
564 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
565 unless ($gs) {
566 die "Unable to determine upstream SVN information from ",
567 "working tree history\n";
568 }
569 if ($_dry_run) {
570 print "Remote Branch: " . $gs->refname . "\n";
571 print "SVN URL: " . $url . "\n";
572 return;
573 }
574 if (command(qw/diff-index HEAD --/)) {
575 print STDERR "Cannot rebase with uncommited changes:\n";
576 command_noisy('status');
577 exit 1;
578 }
579 unless ($_local) {
580 # rebase will checkout for us, so no need to do it explicitly
581 $_no_checkout = 'true';
582 $_fetch_all ? $gs->fetch_all : $gs->fetch;
583 }
584 command_noisy(rebase_cmd(), $gs->refname);
585 }
586
587 sub cmd_show_ignore {
588 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
589 $gs ||= Git::SVN->new;
590 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
591 $gs->prop_walk($gs->{path}, $r, sub {
592 my ($gs, $path, $props) = @_;
593 print STDOUT "\n# $path\n";
594 my $s = $props->{'svn:ignore'} or return;
595 $s =~ s/[\r\n]+/\n/g;
596 chomp $s;
597 $s =~ s#^#$path#gm;
598 print STDOUT "$s\n";
599 });
600 }
601
602 sub cmd_show_externals {
603 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
604 $gs ||= Git::SVN->new;
605 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
606 $gs->prop_walk($gs->{path}, $r, sub {
607 my ($gs, $path, $props) = @_;
608 print STDOUT "\n# $path\n";
609 my $s = $props->{'svn:externals'} or return;
610 $s =~ s/[\r\n]+/\n/g;
611 chomp $s;
612 $s =~ s#^#$path#gm;
613 print STDOUT "$s\n";
614 });
615 }
616
617 sub cmd_create_ignore {
618 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
619 $gs ||= Git::SVN->new;
620 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
621 $gs->prop_walk($gs->{path}, $r, sub {
622 my ($gs, $path, $props) = @_;
623 # $path is of the form /path/to/dir/
624 my $ignore = '.' . $path . '.gitignore';
625 my $s = $props->{'svn:ignore'} or return;
626 open(GITIGNORE, '>', $ignore)
627 or fatal("Failed to open `$ignore' for writing: $!");
628 $s =~ s/[\r\n]+/\n/g;
629 chomp $s;
630 # Prefix all patterns so that the ignore doesn't apply
631 # to sub-directories.
632 $s =~ s#^#/#gm;
633 print GITIGNORE "$s\n";
634 close(GITIGNORE)
635 or fatal("Failed to close `$ignore': $!");
636 command_noisy('add', '-f', $ignore);
637 });
638 }
639
640 sub canonicalize_path {
641 my ($path) = @_;
642 my $dot_slash_added = 0;
643 if (substr($path, 0, 1) ne "/") {
644 $path = "./" . $path;
645 $dot_slash_added = 1;
646 }
647 # File::Spec->canonpath doesn't collapse x/../y into y (for a
648 # good reason), so let's do this manually.
649 $path =~ s#/+#/#g;
650 $path =~ s#/\.(?:/|$)#/#g;
651 $path =~ s#/[^/]+/\.\.##g;
652 $path =~ s#/$##g;
653 $path =~ s#^\./## if $dot_slash_added;
654 $path =~ s#^/##;
655 $path =~ s#^\.$##;
656 return $path;
657 }
658
659 # get_svnprops(PATH)
660 # ------------------
661 # Helper for cmd_propget and cmd_proplist below.
662 sub get_svnprops {
663 my $path = shift;
664 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
665 $gs ||= Git::SVN->new;
666
667 # prefix THE PATH by the sub-directory from which the user
668 # invoked us.
669 $path = $cmd_dir_prefix . $path;
670 fatal("No such file or directory: $path") unless -e $path;
671 my $is_dir = -d $path ? 1 : 0;
672 $path = $gs->{path} . '/' . $path;
673
674 # canonicalize the path (otherwise libsvn will abort or fail to
675 # find the file)
676 $path = canonicalize_path($path);
677
678 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
679 my $props;
680 if ($is_dir) {
681 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
682 }
683 else {
684 (undef, $props) = $gs->ra->get_file($path, $r, undef);
685 }
686 return $props;
687 }
688
689 # cmd_propget (PROP, PATH)
690 # ------------------------
691 # Print the SVN property PROP for PATH.
692 sub cmd_propget {
693 my ($prop, $path) = @_;
694 $path = '.' if not defined $path;
695 usage(1) if not defined $prop;
696 my $props = get_svnprops($path);
697 if (not defined $props->{$prop}) {
698 fatal("`$path' does not have a `$prop' SVN property.");
699 }
700 print $props->{$prop} . "\n";
701 }
702
703 # cmd_proplist (PATH)
704 # -------------------
705 # Print the list of SVN properties for PATH.
706 sub cmd_proplist {
707 my $path = shift;
708 $path = '.' if not defined $path;
709 my $props = get_svnprops($path);
710 print "Properties on '$path':\n";
711 foreach (sort keys %{$props}) {
712 print " $_\n";
713 }
714 }
715
716 sub cmd_multi_init {
717 my $url = shift;
718 unless (defined $_trunk || defined $_branches || defined $_tags) {
719 usage(1);
720 }
721
722 # there are currently some bugs that prevent multi-init/multi-fetch
723 # setups from working well without this.
724 $Git::SVN::_minimize_url = 1;
725
726 $_prefix = '' unless defined $_prefix;
727 if (defined $url) {
728 $url =~ s#/+$##;
729 init_subdir(@_);
730 }
731 do_git_init_db();
732 if (defined $_trunk) {
733 my $trunk_ref = $_prefix . 'trunk';
734 # try both old-style and new-style lookups:
735 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
736 unless ($gs_trunk) {
737 my ($trunk_url, $trunk_path) =
738 complete_svn_url($url, $_trunk);
739 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
740 undef, $trunk_ref);
741 }
742 }
743 return unless defined $_branches || defined $_tags;
744 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
745 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
746 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
747 }
748
749 sub cmd_multi_fetch {
750 my $remotes = Git::SVN::read_all_remotes();
751 foreach my $repo_id (sort keys %$remotes) {
752 if ($remotes->{$repo_id}->{url}) {
753 Git::SVN::fetch_all($repo_id, $remotes);
754 }
755 }
756 }
757
758 # this command is special because it requires no metadata
759 sub cmd_commit_diff {
760 my ($ta, $tb, $url) = @_;
761 my $usage = "Usage: $0 commit-diff -r<revision> ".
762 "<tree-ish> <tree-ish> [<URL>]";
763 fatal($usage) if (!defined $ta || !defined $tb);
764 my $svn_path = '';
765 if (!defined $url) {
766 my $gs = eval { Git::SVN->new };
767 if (!$gs) {
768 fatal("Needed URL or usable git-svn --id in ",
769 "the command-line\n", $usage);
770 }
771 $url = $gs->{url};
772 $svn_path = $gs->{path};
773 }
774 unless (defined $_revision) {
775 fatal("-r|--revision is a required argument\n", $usage);
776 }
777 if (defined $_message && defined $_file) {
778 fatal("Both --message/-m and --file/-F specified ",
779 "for the commit message.\n",
780 "I have no idea what you mean");
781 }
782 if (defined $_file) {
783 $_message = file_to_s($_file);
784 } else {
785 $_message ||= get_commit_entry($tb)->{log};
786 }
787 my $ra ||= Git::SVN::Ra->new($url);
788 my $r = $_revision;
789 if ($r eq 'HEAD') {
790 $r = $ra->get_latest_revnum;
791 } elsif ($r !~ /^\d+$/) {
792 die "revision argument: $r not understood by git-svn\n";
793 }
794 my %ed_opts = ( r => $r,
795 log => $_message,
796 ra => $ra,
797 tree_a => $ta,
798 tree_b => $tb,
799 editor_cb => sub { print "Committed r$_[0]\n" },
800 svn_path => $svn_path );
801 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
802 print "No changes\n$ta == $tb\n";
803 }
804 }
805
806 sub cmd_info {
807 my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
808 if (exists $_[1]) {
809 die "Too many arguments specified\n";
810 }
811
812 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
813
814 if (!$file_type && !$diff_status) {
815 print STDERR "$path: (Not a versioned resource)\n\n";
816 return;
817 }
818
819 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
820 unless ($gs) {
821 die "Unable to determine upstream SVN information from ",
822 "working tree history\n";
823 }
824
825 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
826 $path = "." if $path eq "";
827
828 my $full_url = $url . ($path eq "." ? "" : "/$path");
829
830 if ($_url) {
831 print $full_url, "\n";
832 return;
833 }
834
835 my $result = "Path: $path\n";
836 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
837 $result .= "URL: " . $full_url . "\n";
838
839 eval {
840 my $repos_root = $gs->repos_root;
841 Git::SVN::remove_username($repos_root);
842 $result .= "Repository Root: $repos_root\n";
843 };
844 if ($@) {
845 $result .= "Repository Root: (offline)\n";
846 }
847 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A";
848 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
849
850 $result .= "Node Kind: " .
851 ($file_type eq "dir" ? "directory" : "file") . "\n";
852
853 my $schedule = $diff_status eq "A"
854 ? "add"
855 : ($diff_status eq "D" ? "delete" : "normal");
856 $result .= "Schedule: $schedule\n";
857
858 if ($diff_status eq "A") {
859 print $result, "\n";
860 return;
861 }
862
863 my ($lc_author, $lc_rev, $lc_date_utc);
864 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $path);
865 my $log = command_output_pipe(@args);
866 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
867 while (<$log>) {
868 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
869 $lc_author = $1;
870 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
871 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
872 (undef, $lc_rev, undef) = ::extract_metadata($1);
873 }
874 }
875 close $log;
876
877 Git::SVN::Log::set_local_timezone();
878
879 $result .= "Last Changed Author: $lc_author\n";
880 $result .= "Last Changed Rev: $lc_rev\n";
881 $result .= "Last Changed Date: " .
882 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
883
884 if ($file_type ne "dir") {
885 my $text_last_updated_date =
886 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
887 $result .=
888 "Text Last Updated: " .
889 Git::SVN::Log::format_svn_date($text_last_updated_date) .
890 "\n";
891 my $checksum;
892 if ($diff_status eq "D") {
893 my ($fh, $ctx) =
894 command_output_pipe(qw(cat-file blob), "HEAD:$path");
895 if ($file_type eq "link") {
896 my $file_name = <$fh>;
897 $checksum = md5sum("link $file_name");
898 } else {
899 $checksum = md5sum($fh);
900 }
901 command_close_pipe($fh, $ctx);
902 } elsif ($file_type eq "link") {
903 my $file_name =
904 command(qw(cat-file blob), "HEAD:$path");
905 $checksum =
906 md5sum("link " . $file_name);
907 } else {
908 open FILE, "<", $path or die $!;
909 $checksum = md5sum(\*FILE);
910 close FILE or die $!;
911 }
912 $result .= "Checksum: " . $checksum . "\n";
913 }
914
915 print $result, "\n";
916 }
917
918 ########################### utility functions #########################
919
920 sub rebase_cmd {
921 my @cmd = qw/rebase/;
922 push @cmd, '-v' if $_verbose;
923 push @cmd, qw/--merge/ if $_merge;
924 push @cmd, "--strategy=$_strategy" if $_strategy;
925 @cmd;
926 }
927
928 sub post_fetch_checkout {
929 return if $_no_checkout;
930 my $gs = $Git::SVN::_head or return;
931 return if verify_ref('refs/heads/master^0');
932
933 my $valid_head = verify_ref('HEAD^0');
934 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
935 return if ($valid_head || !verify_ref('HEAD^0'));
936
937 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
938 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
939 return if -f $index;
940
941 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
942 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
943 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
944 print STDERR "Checked out HEAD:\n ",
945 $gs->full_url, " r", $gs->last_rev, "\n";
946 }
947
948 sub complete_svn_url {
949 my ($url, $path) = @_;
950 $path =~ s#/+$##;
951 if ($path !~ m#^[a-z\+]+://#) {
952 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
953 fatal("E: '$path' is not a complete URL ",
954 "and a separate URL is not specified");
955 }
956 return ($url, $path);
957 }
958 return ($path, '');
959 }
960
961 sub complete_url_ls_init {
962 my ($ra, $repo_path, $switch, $pfx) = @_;
963 unless ($repo_path) {
964 print STDERR "W: $switch not specified\n";
965 return;
966 }
967 $repo_path =~ s#/+$##;
968 if ($repo_path =~ m#^[a-z\+]+://#) {
969 $ra = Git::SVN::Ra->new($repo_path);
970 $repo_path = '';
971 } else {
972 $repo_path =~ s#^/+##;
973 unless ($ra) {
974 fatal("E: '$repo_path' is not a complete URL ",
975 "and a separate URL is not specified");
976 }
977 }
978 my $url = $ra->{url};
979 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
980 my $k = "svn-remote.$gs->{repo_id}.url";
981 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
982 if ($orig_url && ($orig_url ne $gs->{url})) {
983 die "$k already set: $orig_url\n",
984 "wanted to set to: $gs->{url}\n";
985 }
986 command_oneline('config', $k, $gs->{url}) unless $orig_url;
987 my $remote_path = "$ra->{svn_path}/$repo_path";
988 $remote_path =~ s#/+#/#g;
989 $remote_path =~ s#^/##g;
990 $remote_path .= "/*" if $remote_path !~ /\*/;
991 my ($n) = ($switch =~ /^--(\w+)/);
992 if (length $pfx && $pfx !~ m#/$#) {
993 die "--prefix='$pfx' must have a trailing slash '/'\n";
994 }
995 command_noisy('config',
996 "svn-remote.$gs->{repo_id}.$n",
997 "$remote_path:refs/remotes/$pfx*" .
998 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
999 }
1000
1001 sub verify_ref {
1002 my ($ref) = @_;
1003 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1004 { STDERR => 0 }); };
1005 }
1006
1007 sub get_tree_from_treeish {
1008 my ($treeish) = @_;
1009 # $treeish can be a symbolic ref, too:
1010 my $type = command_oneline(qw/cat-file -t/, $treeish);
1011 my $expected;
1012 while ($type eq 'tag') {
1013 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1014 }
1015 if ($type eq 'commit') {
1016 $expected = (grep /^tree /, command(qw/cat-file commit/,
1017 $treeish))[0];
1018 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1019 die "Unable to get tree from $treeish\n" unless $expected;
1020 } elsif ($type eq 'tree') {
1021 $expected = $treeish;
1022 } else {
1023 die "$treeish is a $type, expected tree, tag or commit\n";
1024 }
1025 return $expected;
1026 }
1027
1028 sub get_commit_entry {
1029 my ($treeish) = shift;
1030 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1031 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1032 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1033 open my $log_fh, '>', $commit_editmsg or croak $!;
1034
1035 my $type = command_oneline(qw/cat-file -t/, $treeish);
1036 if ($type eq 'commit' || $type eq 'tag') {
1037 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1038 $type, $treeish);
1039 my $in_msg = 0;
1040 my $author;
1041 my $saw_from = 0;
1042 my $msgbuf = "";
1043 while (<$msg_fh>) {
1044 if (!$in_msg) {
1045 $in_msg = 1 if (/^\s*$/);
1046 $author = $1 if (/^author (.*>)/);
1047 } elsif (/^git-svn-id: /) {
1048 # skip this for now, we regenerate the
1049 # correct one on re-fetch anyways
1050 # TODO: set *:merge properties or like...
1051 } else {
1052 if (/^From:/ || /^Signed-off-by:/) {
1053 $saw_from = 1;
1054 }
1055 $msgbuf .= $_;
1056 }
1057 }
1058 $msgbuf =~ s/\s+$//s;
1059 if ($Git::SVN::_add_author_from && defined($author)
1060 && !$saw_from) {
1061 $msgbuf .= "\n\nFrom: $author";
1062 }
1063 print $log_fh $msgbuf or croak $!;
1064 command_close_pipe($msg_fh, $ctx);
1065 }
1066 close $log_fh or croak $!;
1067
1068 if ($_edit || ($type eq 'tree')) {
1069 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1070 # TODO: strip out spaces, comments, like git-commit.sh
1071 system($editor, $commit_editmsg);
1072 }
1073 rename $commit_editmsg, $commit_msg or croak $!;
1074 open $log_fh, '<', $commit_msg or croak $!;
1075 { local $/; chomp($log_entry{log} = <$log_fh>); }
1076 close $log_fh or croak $!;
1077 unlink $commit_msg;
1078 \%log_entry;
1079 }
1080
1081 sub s_to_file {
1082 my ($str, $file, $mode) = @_;
1083 open my $fd,'>',$file or croak $!;
1084 print $fd $str,"\n" or croak $!;
1085 close $fd or croak $!;
1086 chmod ($mode &~ umask, $file) if (defined $mode);
1087 }
1088
1089 sub file_to_s {
1090 my $file = shift;
1091 open my $fd,'<',$file or croak "$!: file: $file\n";
1092 local $/;
1093 my $ret = <$fd>;
1094 close $fd or croak $!;
1095 $ret =~ s/\s*$//s;
1096 return $ret;
1097 }
1098
1099 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1100 sub load_authors {
1101 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1102 my $log = $cmd eq 'log';
1103 while (<$authors>) {
1104 chomp;
1105 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1106 my ($user, $name, $email) = ($1, $2, $3);
1107 if ($log) {
1108 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1109 } else {
1110 $users{$user} = [$name, $email];
1111 }
1112 }
1113 close $authors or croak $!;
1114 }
1115
1116 # convert GetOpt::Long specs for use by git-config
1117 sub read_repo_config {
1118 return unless -d $ENV{GIT_DIR};
1119 my $opts = shift;
1120 my @config_only;
1121 foreach my $o (keys %$opts) {
1122 # if we have mixedCase and a long option-only, then
1123 # it's a config-only variable that we don't need for
1124 # the command-line.
1125 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1126 my $v = $opts->{$o};
1127 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1128 $key =~ s/-//g;
1129 my $arg = 'git config';
1130 $arg .= ' --int' if ($o =~ /[:=]i$/);
1131 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1132 if (ref $v eq 'ARRAY') {
1133 chomp(my @tmp = `$arg --get-all svn.$key`);
1134 @$v = @tmp if @tmp;
1135 } else {
1136 chomp(my $tmp = `$arg --get svn.$key`);
1137 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1138 $$v = $tmp;
1139 }
1140 }
1141 }
1142 delete @$opts{@config_only} if @config_only;
1143 }
1144
1145 sub extract_metadata {
1146 my $id = shift or return (undef, undef, undef);
1147 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1148 \s([a-f\d\-]+)$/x);
1149 if (!defined $rev || !$uuid || !$url) {
1150 # some of the original repositories I made had
1151 # identifiers like this:
1152 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1153 }
1154 return ($url, $rev, $uuid);
1155 }
1156
1157 sub cmt_metadata {
1158 return extract_metadata((grep(/^git-svn-id: /,
1159 command(qw/cat-file commit/, shift)))[-1]);
1160 }
1161
1162 sub working_head_info {
1163 my ($head, $refs) = @_;
1164 my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
1165 my ($fh, $ctx) = command_output_pipe(@args, $head);
1166 my $hash;
1167 my %max;
1168 while (<$fh>) {
1169 if ( m{^commit ($::sha1)$} ) {
1170 unshift @$refs, $hash if $hash and $refs;
1171 $hash = $1;
1172 next;
1173 }
1174 next unless s{^\s*(git-svn-id:)}{$1};
1175 my ($url, $rev, $uuid) = extract_metadata($_);
1176 if (defined $url && defined $rev) {
1177 next if $max{$url} and $max{$url} < $rev;
1178 if (my $gs = Git::SVN->find_by_url($url)) {
1179 my $c = $gs->rev_map_get($rev, $uuid);
1180 if ($c && $c eq $hash) {
1181 close $fh; # break the pipe
1182 return ($url, $rev, $uuid, $gs);
1183 } else {
1184 $max{$url} ||= $gs->rev_map_max;
1185 }
1186 }
1187 }
1188 }
1189 command_close_pipe($fh, $ctx);
1190 (undef, undef, undef, undef);
1191 }
1192
1193 sub read_commit_parents {
1194 my ($parents, $c) = @_;
1195 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1196 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
1197 @{$parents->{$c}} = split(/ /, $p);
1198 }
1199
1200 sub linearize_history {
1201 my ($gs, $refs) = @_;
1202 my %parents;
1203 foreach my $c (@$refs) {
1204 read_commit_parents(\%parents, $c);
1205 }
1206
1207 my @linear_refs;
1208 my %skip = ();
1209 my $last_svn_commit = $gs->last_commit;
1210 foreach my $c (reverse @$refs) {
1211 next if $c eq $last_svn_commit;
1212 last if $skip{$c};
1213
1214 unshift @linear_refs, $c;
1215 $skip{$c} = 1;
1216
1217 # we only want the first parent to diff against for linear
1218 # history, we save the rest to inject when we finalize the
1219 # svn commit
1220 my $fp_a = verify_ref("$c~1");
1221 my $fp_b = shift @{$parents{$c}} if $parents{$c};
1222 if (!$fp_a || !$fp_b) {
1223 die "Commit $c\n",
1224 "has no parent commit, and therefore ",
1225 "nothing to diff against.\n",
1226 "You should be working from a repository ",
1227 "originally created by git-svn\n";
1228 }
1229 if ($fp_a ne $fp_b) {
1230 die "$c~1 = $fp_a, however parsing commit $c ",
1231 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
1232 }
1233
1234 foreach my $p (@{$parents{$c}}) {
1235 $skip{$p} = 1;
1236 }
1237 }
1238 (\@linear_refs, \%parents);
1239 }
1240
1241 sub find_file_type_and_diff_status {
1242 my ($path) = @_;
1243 return ('dir', '') if $path eq '';
1244
1245 my $diff_output =
1246 command_oneline(qw(diff --cached --name-status --), $path) || "";
1247 my $diff_status = (split(' ', $diff_output))[0] || "";
1248
1249 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
1250
1251 return (undef, undef) if !$diff_status && !$ls_tree;
1252
1253 if ($diff_status eq "A") {
1254 return ("link", $diff_status) if -l $path;
1255 return ("dir", $diff_status) if -d $path;
1256 return ("file", $diff_status);
1257 }
1258
1259 my $mode = (split(' ', $ls_tree))[0] || "";
1260
1261 return ("link", $diff_status) if $mode eq "120000";
1262 return ("dir", $diff_status) if $mode eq "040000";
1263 return ("file", $diff_status);
1264 }
1265
1266 sub md5sum {
1267 my $arg = shift;
1268 my $ref = ref $arg;
1269 my $md5 = Digest::MD5->new();
1270 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
1271 $md5->addfile($arg) or croak $!;
1272 } elsif ($ref eq 'SCALAR') {
1273 $md5->add($$arg) or croak $!;
1274 } elsif (!$ref) {
1275 $md5->add($arg) or croak $!;
1276 } else {
1277 ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
1278 }
1279 return $md5->hexdigest();
1280 }
1281
1282 package Git::SVN;
1283 use strict;
1284 use warnings;
1285 use Fcntl qw/:DEFAULT :seek/;
1286 use constant rev_map_fmt => 'NH40';
1287 use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
1288 $_repack $_repack_flags $_use_svm_props $_head
1289 $_use_svnsync_props $no_reuse_existing $_minimize_url
1290 $_use_log_author $_add_author_from/;
1291 use Carp qw/croak/;
1292 use File::Path qw/mkpath/;
1293 use File::Copy qw/copy/;
1294 use IPC::Open3;
1295
1296 my ($_gc_nr, $_gc_period);
1297
1298 # properties that we do not log:
1299 my %SKIP_PROP;
1300 BEGIN {
1301 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1302 svn:special svn:executable
1303 svn:entry:committed-rev
1304 svn:entry:last-author
1305 svn:entry:uuid
1306 svn:entry:committed-date/;
1307
1308 # some options are read globally, but can be overridden locally
1309 # per [svn-remote "..."] section. Command-line options will *NOT*
1310 # override options set in an [svn-remote "..."] section
1311 no strict 'refs';
1312 for my $option (qw/follow_parent no_metadata use_svm_props
1313 use_svnsync_props/) {
1314 my $key = $option;
1315 $key =~ tr/_//d;
1316 my $prop = "-$option";
1317 *$option = sub {
1318 my ($self) = @_;
1319 return $self->{$prop} if exists $self->{$prop};
1320 my $k = "svn-remote.$self->{repo_id}.$key";
1321 eval { command_oneline(qw/config --get/, $k) };
1322 if ($@) {
1323 $self->{$prop} = ${"Git::SVN::_$option"};
1324 } else {
1325 my $v = command_oneline(qw/config --bool/,$k);
1326 $self->{$prop} = $v eq 'false' ? 0 : 1;
1327 }
1328 return $self->{$prop};
1329 }
1330 }
1331 }
1332
1333
1334 my (%LOCKFILES, %INDEX_FILES);
1335 END {
1336 unlink keys %LOCKFILES if %LOCKFILES;
1337 unlink keys %INDEX_FILES if %INDEX_FILES;
1338 }
1339
1340 sub resolve_local_globs {
1341 my ($url, $fetch, $glob_spec) = @_;
1342 return unless defined $glob_spec;
1343 my $ref = $glob_spec->{ref};
1344 my $path = $glob_spec->{path};
1345 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
1346 next unless m#^refs/remotes/$ref->{regex}$#;
1347 my $p = $1;
1348 my $pathname = desanitize_refname($path->full_path($p));
1349 my $refname = desanitize_refname($ref->full_path($p));
1350 if (my $existing = $fetch->{$pathname}) {
1351 if ($existing ne $refname) {
1352 die "Refspec conflict:\n",
1353 "existing: refs/remotes/$existing\n",
1354 " globbed: refs/remotes/$refname\n";
1355 }
1356 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
1357 $u =~ s!^\Q$url\E(/|$)!! or die
1358 "refs/remotes/$refname: '$url' not found in '$u'\n";
1359 if ($pathname ne $u) {
1360 warn "W: Refspec glob conflict ",
1361 "(ref: refs/remotes/$refname):\n",
1362 "expected path: $pathname\n",
1363 " real path: $u\n",
1364 "Continuing ahead with $u\n";
1365 next;
1366 }
1367 } else {
1368 $fetch->{$pathname} = $refname;
1369 }
1370 }
1371 }
1372
1373 sub parse_revision_argument {
1374 my ($base, $head) = @_;
1375 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1376 return ($base, $head);
1377 }
1378 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1379 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1380 return ($head, $head) if ($::_revision eq 'HEAD');
1381 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
1382 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1383 die "revision argument: $::_revision not understood by git-svn\n";
1384 }
1385
1386 sub fetch_all {
1387 my ($repo_id, $remotes) = @_;
1388 if (ref $repo_id) {
1389 my $gs = $repo_id;
1390 $repo_id = undef;
1391 $repo_id = $gs->{repo_id};
1392 }
1393 $remotes ||= read_all_remotes();
1394 my $remote = $remotes->{$repo_id} or
1395 die "[svn-remote \"$repo_id\"] unknown\n";
1396 my $fetch = $remote->{fetch};
1397 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
1398 my (@gs, @globs);
1399 my $ra = Git::SVN::Ra->new($url);
1400 my $uuid = $ra->get_uuid;
1401 my $head = $ra->get_latest_revnum;
1402 my $base = defined $fetch ? $head : 0;
1403
1404 # read the max revs for wildcard expansion (branches/*, tags/*)
1405 foreach my $t (qw/branches tags/) {
1406 defined $remote->{$t} or next;
1407 push @globs, $remote->{$t};
1408 my $max_rev = eval { tmp_config(qw/--int --get/,
1409 "svn-remote.$repo_id.${t}-maxRev") };
1410 if (defined $max_rev && ($max_rev < $base)) {
1411 $base = $max_rev;
1412 } elsif (!defined $max_rev) {
1413 $base = 0;
1414 }
1415 }
1416
1417 if ($fetch) {
1418 foreach my $p (sort keys %$fetch) {
1419 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
1420 my $lr = $gs->rev_map_max;
1421 if (defined $lr) {
1422 $base = $lr if ($lr < $base);
1423 }
1424 push @gs, $gs;
1425 }
1426 }
1427
1428 ($base, $head) = parse_revision_argument($base, $head);
1429 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
1430 }
1431
1432 sub read_all_remotes {
1433 my $r = {};
1434 my $use_svm_props = eval { command_oneline(qw/config --bool
1435 svn.useSvmProps/) };
1436 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
1437 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
1438 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*(.+)\s*$!) {
1439 my ($remote, $local_ref, $_remote_ref) = ($1, $2, $3);
1440 die("svn-remote.$remote: remote ref '$_remote_ref' "
1441 . "must start with 'refs/remotes/'\n")
1442 unless $_remote_ref =~ m{^refs/remotes/(.+)};
1443 my $remote_ref = $1;
1444 $local_ref =~ s{^/}{};
1445 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
1446 $r->{$remote}->{svm} = {} if $use_svm_props;
1447 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
1448 $r->{$1}->{svm} = {};
1449 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
1450 $r->{$1}->{url} = $2;
1451 } elsif (m!^(.+)\.(branches|tags)=
1452 (.*):refs/remotes/(.+)\s*$/!x) {
1453 my ($p, $g) = ($3, $4);
1454 my $rs = $r->{$1}->{$2} = {
1455 t => $2,
1456 remote => $1,
1457 path => Git::SVN::GlobSpec->new($p),
1458 ref => Git::SVN::GlobSpec->new($g) };
1459 if (length($rs->{ref}->{right}) != 0) {
1460 die "The '*' glob character must be the last ",
1461 "character of '$g'\n";
1462 }
1463 }
1464 }
1465
1466 map {
1467 if (defined $r->{$_}->{svm}) {
1468 my $svm;
1469 eval {
1470 my $section = "svn-remote.$_";
1471 $svm = {
1472 source => tmp_config('--get',
1473 "$section.svm-source"),
1474 replace => tmp_config('--get',
1475 "$section.svm-replace"),
1476 }
1477 };
1478 $r->{$_}->{svm} = $svm;
1479 }
1480 } keys %$r;
1481
1482 $r;
1483 }
1484
1485 sub init_vars {
1486 $_gc_nr = $_gc_period = 1000;
1487 if (defined $_repack || defined $_repack_flags) {
1488 warn "Repack options are obsolete; they have no effect.\n";
1489 }
1490 }
1491
1492 sub verify_remotes_sanity {
1493 return unless -d $ENV{GIT_DIR};
1494 my %seen;
1495 foreach (command(qw/config -l/)) {
1496 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
1497 if ($seen{$1}) {
1498 die "Remote ref refs/remote/$1 is tracked by",
1499 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
1500 "Please resolve this ambiguity in ",
1501 "your git configuration file before ",
1502 "continuing\n";
1503 }
1504 $seen{$1} = $_;
1505 }
1506 }
1507 }
1508
1509 sub find_existing_remote {
1510 my ($url, $remotes) = @_;
1511 return undef if $no_reuse_existing;
1512 my $existing;
1513 foreach my $repo_id (keys %$remotes) {
1514 my $u = $remotes->{$repo_id}->{url} or next;
1515 next if $u ne $url;
1516 $existing = $repo_id;
1517 last;
1518 }
1519 $existing;
1520 }
1521
1522 sub init_remote_config {
1523 my ($self, $url, $no_write) = @_;
1524 $url =~ s!/+$!!; # strip trailing slash
1525 my $r = read_all_remotes();
1526 my $existing = find_existing_remote($url, $r);
1527 if ($existing) {
1528 unless ($no_write) {
1529 print STDERR "Using existing ",
1530 "[svn-remote \"$existing\"]\n";
1531 }
1532 $self->{repo_id} = $existing;
1533 } elsif ($_minimize_url) {
1534 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
1535 $existing = find_existing_remote($min_url, $r);
1536 if ($existing) {
1537 unless ($no_write) {
1538 print STDERR "Using existing ",
1539 "[svn-remote \"$existing\"]\n";
1540 }
1541 $self->{repo_id} = $existing;
1542 }
1543 if ($min_url ne $url) {
1544 unless ($no_write) {
1545 print STDERR "Using higher level of URL: ",
1546 "$url => $min_url\n";
1547 }
1548 my $old_path = $self->{path};
1549 $self->{path} = $url;
1550 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1551 if (length $old_path) {
1552 $self->{path} .= "/$old_path";
1553 }
1554 $url = $min_url;
1555 }
1556 }
1557 my $orig_url;
1558 if (!$existing) {
1559 # verify that we aren't overwriting anything:
1560 $orig_url = eval {
1561 command_oneline('config', '--get',
1562 "svn-remote.$self->{repo_id}.url")
1563 };
1564 if ($orig_url && ($orig_url ne $url)) {
1565 die "svn-remote.$self->{repo_id}.url already set: ",
1566 "$orig_url\nwanted to set to: $url\n";
1567 }
1568 }
1569 my ($xrepo_id, $xpath) = find_ref($self->refname);
1570 if (defined $xpath) {
1571 die "svn-remote.$xrepo_id.fetch already set to track ",
1572 "$xpath:refs/remotes/", $self->refname, "\n";
1573 }
1574 unless ($no_write) {
1575 command_noisy('config',
1576 "svn-remote.$self->{repo_id}.url", $url);
1577 $self->{path} =~ s{^/}{};
1578 command_noisy('config', '--add',
1579 "svn-remote.$self->{repo_id}.fetch",
1580 "$self->{path}:".$self->refname);
1581 }
1582 $self->{url} = $url;
1583 }
1584
1585 sub find_by_url { # repos_root and, path are optional
1586 my ($class, $full_url, $repos_root, $path) = @_;
1587
1588 return undef unless defined $full_url;
1589 remove_username($full_url);
1590 remove_username($repos_root) if defined $repos_root;
1591 my $remotes = read_all_remotes();
1592 if (defined $full_url && defined $repos_root && !defined $path) {
1593 $path = $full_url;
1594 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1595 }
1596 foreach my $repo_id (keys %$remotes) {
1597 my $u = $remotes->{$repo_id}->{url} or next;
1598 remove_username($u);
1599 next if defined $repos_root && $repos_root ne $u;
1600
1601 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1602 foreach (qw/branches tags/) {
1603 resolve_local_globs($u, $fetch,
1604 $remotes->{$repo_id}->{$_});
1605 }
1606 my $p = $path;
1607 my $rwr = rewrite_root({repo_id => $repo_id});
1608 my $svm = $remotes->{$repo_id}->{svm}
1609 if defined $remotes->{$repo_id}->{svm};
1610 unless (defined $p) {
1611 $p = $full_url;
1612 my $z = $u;
1613 my $prefix = '';
1614 if ($rwr) {
1615 $z = $rwr;
1616 } elsif (defined $svm) {
1617 $z = $svm->{source};
1618 $prefix = $svm->{replace};
1619 $prefix =~ s#^\Q$u\E(?:/|$)##;
1620 $prefix =~ s#/$##;
1621 }
1622 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
1623 }
1624 foreach my $f (keys %$fetch) {
1625 next if $f ne $p;
1626 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1627 }
1628 }
1629 undef;
1630 }
1631
1632 sub init {
1633 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1634 my $self = _new($class, $repo_id, $ref_id, $path);
1635 if (defined $url) {
1636 $self->init_remote_config($url, $no_write);
1637 }
1638 $self;
1639 }
1640
1641 sub find_ref {
1642 my ($ref_id) = @_;
1643 foreach (command(qw/config -l/)) {
1644 next unless m!^svn-remote\.(.+)\.fetch=
1645 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1646 my ($repo_id, $path, $ref) = ($1, $2, $3);
1647 if ($ref eq $ref_id) {
1648 $path = '' if ($path =~ m#^\./?#);
1649 return ($repo_id, $path);
1650 }
1651 }
1652 (undef, undef, undef);
1653 }
1654
1655 sub new {
1656 my ($class, $ref_id, $repo_id, $path) = @_;
1657 if (defined $ref_id && !defined $repo_id && !defined $path) {
1658 ($repo_id, $path) = find_ref($ref_id);
1659 if (!defined $repo_id) {
1660 die "Could not find a \"svn-remote.*.fetch\" key ",
1661 "in the repository configuration matching: ",
1662 "refs/remotes/$ref_id\n";
1663 }
1664 }
1665 my $self = _new($class, $repo_id, $ref_id, $path);
1666 if (!defined $self->{path} || !length $self->{path}) {
1667 my $fetch = command_oneline('config', '--get',
1668 "svn-remote.$repo_id.fetch",
1669 ":refs/remotes/$ref_id\$") or
1670 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1671 "\":refs/remotes/$ref_id\$\" in config\n";
1672 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1673 }
1674 $self->{url} = command_oneline('config', '--get',
1675 "svn-remote.$repo_id.url") or
1676 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1677 $self->rebuild;
1678 $self;
1679 }
1680
1681 sub refname {
1682 my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
1683
1684 # It cannot end with a slash /, we'll throw up on this because
1685 # SVN can't have directories with a slash in their name, either:
1686 if ($refname =~ m{/$}) {
1687 die "ref: '$refname' ends with a trailing slash, this is ",
1688 "not permitted by git nor Subversion\n";
1689 }
1690
1691 # It cannot have ASCII control character space, tilde ~, caret ^,
1692 # colon :, question-mark ?, asterisk *, space, or open bracket [
1693 # anywhere.
1694 #
1695 # Additionally, % must be escaped because it is used for escaping
1696 # and we want our escaped refname to be reversible
1697 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
1698
1699 # no slash-separated component can begin with a dot .
1700 # /.* becomes /%2E*
1701 $refname =~ s{/\.}{/%2E}g;
1702
1703 # It cannot have two consecutive dots .. anywhere
1704 # .. becomes %2E%2E
1705 $refname =~ s{\.\.}{%2E%2E}g;
1706
1707 return $refname;
1708 }
1709
1710 sub desanitize_refname {
1711 my ($refname) = @_;
1712 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
1713 return $refname;
1714 }
1715
1716 sub svm_uuid {
1717 my ($self) = @_;
1718 return $self->{svm}->{uuid} if $self->svm;
1719 $self->ra;
1720 unless ($self->{svm}) {
1721 die "SVM UUID not cached, and reading remotely failed\n";
1722 }
1723 $self->{svm}->{uuid};
1724 }
1725
1726 sub svm {
1727 my ($self) = @_;
1728 return $self->{svm} if $self->{svm};
1729 my $svm;
1730 # see if we have it in our config, first:
1731 eval {
1732 my $section = "svn-remote.$self->{repo_id}";
1733 $svm = {
1734 source => tmp_config('--get', "$section.svm-source"),
1735 uuid => tmp_config('--get', "$section.svm-uuid"),
1736 replace => tmp_config('--get', "$section.svm-replace"),
1737 }
1738 };
1739 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1740 $self->{svm} = $svm;
1741 }
1742 $self->{svm};
1743 }
1744
1745 sub _set_svm_vars {
1746 my ($self, $ra) = @_;
1747 return $ra if $self->svm;
1748
1749 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1750 "(svm:source, svm:uuid) ",
1751 "from the following URLs:\n" );
1752 sub read_svm_props {
1753 my ($self, $ra, $path, $r) = @_;
1754 my $props = ($ra->get_dir($path, $r))[2];
1755 my $src = $props->{'svm:source'};
1756 my $uuid = $props->{'svm:uuid'};
1757 return undef if (!$src || !$uuid);
1758
1759 chomp($src, $uuid);
1760
1761 $uuid =~ m{^[0-9a-f\-]{30,}$}
1762 or die "doesn't look right - svm:uuid is '$uuid'\n";
1763
1764 # the '!' is used to mark the repos_root!/relative/path
1765 $src =~ s{/?!/?}{/};
1766 $src =~ s{/+$}{}; # no trailing slashes please
1767 # username is of no interest
1768 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1769
1770 my $replace = $ra->{url};
1771 $replace .= "/$path" if length $path;
1772
1773 my $section = "svn-remote.$self->{repo_id}";
1774 tmp_config("$section.svm-source", $src);
1775 tmp_config("$section.svm-replace", $replace);
1776 tmp_config("$section.svm-uuid", $uuid);
1777 $self->{svm} = {
1778 source => $src,
1779 uuid => $uuid,
1780 replace => $replace
1781 };
1782 }
1783
1784 my $r = $ra->get_latest_revnum;
1785 my $path = $self->{path};
1786 my %tried;
1787 while (length $path) {
1788 unless ($tried{"$self->{url}/$path"}) {
1789 return $ra if $self->read_svm_props($ra, $path, $r);
1790 $tried{"$self->{url}/$path"} = 1;
1791 }
1792 $path =~ s#/?[^/]+$##;
1793 }
1794 die "Path: '$path' should be ''\n" if $path ne '';
1795 return $ra if $self->read_svm_props($ra, $path, $r);
1796 $tried{"$self->{url}/$path"} = 1;
1797
1798 if ($ra->{repos_root} eq $self->{url}) {
1799 die @err, (map { " $_\n" } keys %tried), "\n";
1800 }
1801
1802 # nope, make sure we're connected to the repository root:
1803 my $ok;
1804 my @tried_b;
1805 $path = $ra->{svn_path};
1806 $ra = Git::SVN::Ra->new($ra->{repos_root});
1807 while (length $path) {
1808 unless ($tried{"$ra->{url}/$path"}) {
1809 $ok = $self->read_svm_props($ra, $path, $r);
1810 last if $ok;
1811 $tried{"$ra->{url}/$path"} = 1;
1812 }
1813 $path =~ s#/?[^/]+$##;
1814 }
1815 die "Path: '$path' should be ''\n" if $path ne '';
1816 $ok ||= $self->read_svm_props($ra, $path, $r);
1817 $tried{"$ra->{url}/$path"} = 1;
1818 if (!$ok) {
1819 die @err, (map { " $_\n" } keys %tried), "\n";
1820 }
1821 Git::SVN::Ra->new($self->{url});
1822 }
1823
1824 sub svnsync {
1825 my ($self) = @_;
1826 return $self->{svnsync} if $self->{svnsync};
1827
1828 if ($self->no_metadata) {
1829 die "Can't have both 'noMetadata' and ",
1830 "'useSvnsyncProps' options set!\n";
1831 }
1832 if ($self->rewrite_root) {
1833 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1834 "options set!\n";
1835 }
1836
1837 my $svnsync;
1838 # see if we have it in our config, first:
1839 eval {
1840 my $section = "svn-remote.$self->{repo_id}";
1841
1842 my $url = tmp_config('--get', "$section.svnsync-url");
1843 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1844 die "doesn't look right - svn:sync-from-url is '$url'\n";
1845
1846 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
1847 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1848 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1849
1850 $svnsync = { url => $url, uuid => $uuid }
1851 };
1852 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1853 return $self->{svnsync} = $svnsync;
1854 }
1855
1856 my $err = "useSvnsyncProps set, but failed to read " .
1857 "svnsync property: svn:sync-from-";
1858 my $rp = $self->ra->rev_proplist(0);
1859
1860 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1861 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
1862 die "doesn't look right - svn:sync-from-url is '$url'\n";
1863
1864 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1865 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
1866 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1867
1868 my $section = "svn-remote.$self->{repo_id}";
1869 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1870 tmp_config('--add', "$section.svnsync-url", $url);
1871 return $self->{svnsync} = { url => $url, uuid => $uuid };
1872 }
1873
1874 # this allows us to memoize our SVN::Ra UUID locally and avoid a
1875 # remote lookup (useful for 'git svn log').
1876 sub ra_uuid {
1877 my ($self) = @_;
1878 unless ($self->{ra_uuid}) {
1879 my $key = "svn-remote.$self->{repo_id}.uuid";
1880 my $uuid = eval { tmp_config('--get', $key) };
1881 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1882 $self->{ra_uuid} = $uuid;
1883 } else {
1884 die "ra_uuid called without URL\n" unless $self->{url};
1885 $self->{ra_uuid} = $self->ra->get_uuid;
1886 tmp_config('--add', $key, $self->{ra_uuid});
1887 }
1888 }
1889 $self->{ra_uuid};
1890 }
1891
1892 sub _set_repos_root {
1893 my ($self, $repos_root) = @_;
1894 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1895 $repos_root ||= $self->ra->{repos_root};
1896 tmp_config($k, $repos_root);
1897 $repos_root;
1898 }
1899
1900 sub repos_root {
1901 my ($self) = @_;
1902 my $k = "svn-remote.$self->{repo_id}.reposRoot";
1903 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
1904 }
1905
1906 sub ra {
1907 my ($self) = shift;
1908 my $ra = Git::SVN::Ra->new($self->{url});
1909 $self->_set_repos_root($ra->{repos_root});
1910 if ($self->use_svm_props && !$self->{svm}) {
1911 if ($self->no_metadata) {
1912 die "Can't have both 'noMetadata' and ",
1913 "'useSvmProps' options set!\n";
1914 } elsif ($self->use_svnsync_props) {
1915 die "Can't have both 'useSvnsyncProps' and ",
1916 "'useSvmProps' options set!\n";
1917 }
1918 $ra = $self->_set_svm_vars($ra);
1919 $self->{-want_revprops} = 1;
1920 }
1921 $ra;
1922 }
1923
1924 sub rel_path {
1925 my ($self) = @_;
1926 my $repos_root = $self->ra->{repos_root};
1927 return $self->{path} if ($self->{url} eq $repos_root);
1928 my $url = $self->{url} .
1929 (length $self->{path} ? "/$self->{path}" : $self->{path});
1930 $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
1931 $url;
1932 }
1933
1934 # prop_walk(PATH, REV, SUB)
1935 # -------------------------
1936 # Recursively traverse PATH at revision REV and invoke SUB for each
1937 # directory that contains a SVN property. SUB will be invoked as
1938 # follows: &SUB(gs, path, props); where `gs' is this instance of
1939 # Git::SVN, `path' the path to the directory where the properties
1940 # `props' were found. The `path' will be relative to point of checkout,
1941 # that is, if url://repo/trunk is the current Git branch, and that
1942 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
1943 # as `path' (note the trailing `/').
1944 sub prop_walk {
1945 my ($self, $path, $rev, $sub) = @_;
1946
1947 $path =~ s#^/##;
1948 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
1949 $path =~ s#^/*#/#g;
1950 my $p = $path;
1951 # Strip the irrelevant part of the path.
1952 $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
1953 # Ensure the path is terminated by a `/'.
1954 $p =~ s#/*$#/#;
1955
1956 # The properties contain all the internal SVN stuff nobody
1957 # (usually) cares about.
1958 my $interesting_props = 0;
1959 foreach (keys %{$props}) {
1960 # If it doesn't start with `svn:', it must be a
1961 # user-defined property.
1962 ++$interesting_props and next if $_ !~ /^svn:/;
1963 # FIXME: Fragile, if SVN adds new public properties,
1964 # this needs to be updated.
1965 ++$interesting_props if /^svn:(?:ignore|keywords|executable
1966 |eol-style|mime-type
1967 |externals|needs-lock)$/x;
1968 }
1969 &$sub($self, $p, $props) if $interesting_props;
1970
1971 foreach (sort keys %$dirent) {
1972 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
1973 $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
1974 }
1975 }
1976
1977 sub last_rev { ($_[0]->last_rev_commit)[0] }
1978 sub last_commit { ($_[0]->last_rev_commit)[1] }
1979
1980 # returns the newest SVN revision number and newest commit SHA1
1981 sub last_rev_commit {
1982 my ($self) = @_;
1983 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1984 return ($self->{last_rev}, $self->{last_commit});
1985 }
1986 my $c = ::verify_ref($self->refname.'^0');
1987 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1988 my $rev = (::cmt_metadata($c))[1];
1989 if (defined $rev) {
1990 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1991 return ($rev, $c);
1992 }
1993 }
1994 my $map_path = $self->map_path;
1995 unless (-e $map_path) {
1996 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
1997 return (undef, undef);
1998 }
1999 my ($rev, $commit) = $self->rev_map_max(1);
2000 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
2001 return ($rev, $commit);
2002 }
2003
2004 sub get_fetch_range {
2005 my ($self, $min, $max) = @_;
2006 $max ||= $self->ra->get_latest_revnum;
2007 $min ||= $self->rev_map_max;
2008 (++$min, $max);
2009 }
2010
2011 sub tmp_config {
2012 my (@args) = @_;
2013 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
2014 my $config = "$ENV{GIT_DIR}/svn/.metadata";
2015 if (! -f $config && -f $old_def_config) {
2016 rename $old_def_config, $config or
2017 die "Failed rename $old_def_config => $config: $!\n";
2018 }
2019 my $old_config = $ENV{GIT_CONFIG};
2020 $ENV{GIT_CONFIG} = $config;
2021 $@ = undef;
2022 my @ret = eval {
2023 unless (-f $config) {
2024 mkfile($config);
2025 open my $fh, '>', $config or
2026 die "Can't open $config: $!\n";
2027 print $fh "; This file is used internally by ",
2028 "git-svn\n" or die
2029 "Couldn't write to $config: $!\n";
2030 print $fh "; You should not have to edit it\n" or
2031 die "Couldn't write to $config: $!\n";
2032 close $fh or die "Couldn't close $config: $!\n";
2033 }
2034 command('config', @args);
2035 };
2036 my $err = $@;
2037 if (defined $old_config) {
2038 $ENV{GIT_CONFIG} = $old_config;
2039 } else {
2040 delete $ENV{GIT_CONFIG};
2041 }
2042 die $err if $err;
2043 wantarray ? @ret : $ret[0];
2044 }
2045
2046 sub tmp_index_do {
2047 my ($self, $sub) = @_;
2048 my $old_index = $ENV{GIT_INDEX_FILE};
2049 $ENV{GIT_INDEX_FILE} = $self->{index};
2050 $@ = undef;
2051 my @ret = eval {
2052 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
2053 mkpath([$dir]) unless -d $dir;
2054 &$sub;
2055 };
2056 my $err = $@;
2057 if (defined $old_index) {
2058 $ENV{GIT_INDEX_FILE} = $old_index;
2059 } else {
2060 delete $ENV{GIT_INDEX_FILE};
2061 }
2062 die $err if $err;
2063 wantarray ? @ret : $ret[0];
2064 }
2065
2066 sub assert_index_clean {
2067 my ($self, $treeish) = @_;
2068
2069 $self->tmp_index_do(sub {
2070 command_noisy('read-tree', $treeish) unless -e $self->{index};
2071 my $x = command_oneline('write-tree');
2072 my ($y) = (command(qw/cat-file commit/, $treeish) =~
2073 /^tree ($::sha1)/mo);
2074 return if $y eq $x;
2075
2076 warn "Index mismatch: $y != $x\nrereading $treeish\n";
2077 unlink $self->{index} or die "unlink $self->{index}: $!\n";
2078 command_noisy('read-tree', $treeish);
2079 $x = command_oneline('write-tree');
2080 if ($y ne $x) {
2081 ::fatal "trees ($treeish) $y != $x\n",
2082 "Something is seriously wrong...";
2083 }
2084 });
2085 }
2086
2087 sub get_commit_parents {
2088 my ($self, $log_entry) = @_;
2089 my (%seen, @ret, @tmp);
2090 # legacy support for 'set-tree'; this is only used by set_tree_cb:
2091 if (my $ip = $self->{inject_parents}) {
2092 if (my $commit = delete $ip->{$log_entry->{revision}}) {
2093 push @tmp, $commit;
2094 }
2095 }
2096 if (my $cur = ::verify_ref($self->refname.'^0')) {
2097 push @tmp, $cur;
2098 }
2099 if (my $ipd = $self->{inject_parents_dcommit}) {
2100 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
2101 push @tmp, @$commit;
2102 }
2103 }
2104 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
2105 while (my $p = shift @tmp) {
2106 next if $seen{$p};
2107 $seen{$p} = 1;
2108 push @ret, $p;
2109 # MAXPARENT is defined to 16 in commit-tree.c:
2110 last if @ret >= 16;
2111 }
2112 if (@tmp) {
2113 die "r$log_entry->{revision}: No room for parents:\n\t",
2114 join("\n\t", @tmp), "\n";
2115 }
2116 @ret;
2117 }
2118
2119 sub rewrite_root {
2120 my ($self) = @_;
2121 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
2122 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
2123 my $rwr = eval { command_oneline(qw/config --get/, $k) };
2124 if ($rwr) {
2125 $rwr =~ s#/+$##;
2126 if ($rwr !~ m#^[a-z\+]+://#) {
2127 die "$rwr is not a valid URL (key: $k)\n";
2128 }
2129 }
2130 $self->{-rewrite_root} = $rwr;
2131 }
2132
2133 sub metadata_url {
2134 my ($self) = @_;
2135 ($self->rewrite_root || $self->{url}) .
2136 (length $self->{path} ? '/' . $self->{path} : '');
2137 }
2138
2139 sub full_url {
2140 my ($self) = @_;
2141 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
2142 }
2143
2144
2145 sub set_commit_header_env {
2146 my ($log_entry) = @_;
2147 my %env;
2148 foreach my $ned (qw/NAME EMAIL DATE/) {
2149 foreach my $ac (qw/AUTHOR COMMITTER/) {
2150 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
2151 }
2152 }
2153
2154 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
2155 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
2156 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
2157
2158 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
2159 ? $log_entry->{commit_name}
2160 : $log_entry->{name};
2161 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
2162 ? $log_entry->{commit_email}
2163 : $log_entry->{email};
2164 \%env;
2165 }
2166
2167 sub restore_commit_header_env {
2168 my ($env) = @_;
2169 foreach my $ned (qw/NAME EMAIL DATE/) {
2170 foreach my $ac (qw/AUTHOR COMMITTER/) {
2171 my $k = "GIT_${ac}_${ned}";
2172 if (defined $env->{$k}) {
2173 $ENV{$k} = $env->{$k};
2174 } else {
2175 delete $ENV{$k};
2176 }
2177 }
2178 }
2179 }
2180
2181 sub gc {
2182 command_noisy('gc', '--auto');
2183 };
2184
2185 sub do_git_commit {
2186 my ($self, $log_entry) = @_;
2187 my $lr = $self->last_rev;
2188 if (defined $lr && $lr >= $log_entry->{revision}) {
2189 die "Last fetched revision of ", $self->refname,
2190 " was r$lr, but we are about to fetch: ",
2191 "r$log_entry->{revision}!\n";
2192 }
2193 if (my $c = $self->rev_map_get($log_entry->{revision})) {
2194 croak "$log_entry->{revision} = $c already exists! ",
2195 "Why are we refetching it?\n";
2196 }
2197 my $old_env = set_commit_header_env($log_entry);
2198 my $tree = $log_entry->{tree};
2199 if (!defined $tree) {
2200 $tree = $self->tmp_index_do(sub {
2201 command_oneline('write-tree') });
2202 }
2203 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
2204
2205 my @exec = ('git', 'commit-tree', $tree);
2206 foreach ($self->get_commit_parents($log_entry)) {
2207 push @exec, '-p', $_;
2208 }
2209 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
2210 or croak $!;
2211 print $msg_fh $log_entry->{log} or croak $!;
2212 restore_commit_header_env($old_env);
2213 unless ($self->no_metadata) {
2214 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
2215 or croak $!;
2216 }
2217 $msg_fh->flush == 0 or croak $!;
2218 close $msg_fh or croak $!;
2219 chomp(my $commit = do { local $/; <$out_fh> });
2220 close $out_fh or croak $!;
2221 waitpid $pid, 0;
2222 croak $? if $?;
2223 if ($commit !~ /^$::sha1$/o) {
2224 die "Failed to commit, invalid sha1: $commit\n";
2225 }
2226
2227 $self->rev_map_set($log_entry->{revision}, $commit, 1);
2228
2229 $self->{last_rev} = $log_entry->{revision};
2230 $self->{last_commit} = $commit;
2231 print "r$log_entry->{revision}";
2232 if (defined $log_entry->{svm_revision}) {
2233 print " (\@$log_entry->{svm_revision})";
2234 $self->rev_map_set($log_entry->{svm_revision}, $commit,
2235 0, $self->svm_uuid);
2236 }
2237 print " = $commit ($self->{ref_id})\n";
2238 if (--$_gc_nr == 0) {
2239 $_gc_nr = $_gc_period;
2240 gc();
2241 }
2242 return $commit;
2243 }
2244
2245 sub match_paths {
2246 my ($self, $paths, $r) = @_;
2247 return 1 if $self->{path} eq '';
2248 if (my $path = $paths->{"/$self->{path}"}) {
2249 return ($path->{action} eq 'D') ? 0 : 1;
2250 }
2251 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
2252 if (grep /$self->{path_regex}/, keys %$paths) {
2253 return 1;
2254 }
2255 my $c = '';
2256 foreach (split m#/#, $self->{path}) {
2257 $c .= "/$_";
2258 next unless ($paths->{$c} &&
2259 ($paths->{$c}->{action} =~ /^[AR]$/));
2260 if ($self->ra->check_path($self->{path}, $r) ==
2261 $SVN::Node::dir) {
2262 return 1;
2263 }
2264 }
2265 return 0;
2266 }
2267
2268 sub find_parent_branch {
2269 my ($self, $paths, $rev) = @_;
2270 return undef unless $self->follow_parent;
2271 unless (defined $paths) {
2272 my $err_handler = $SVN::Error::handler;
2273 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
2274 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
2275 $paths =
2276 Git::SVN::Ra::dup_changed_paths($_[0]) });
2277 $SVN::Error::handler = $err_handler;
2278 }
2279 return undef unless defined $paths;
2280
2281 # look for a parent from another branch:
2282 my @b_path_components = split m#/#, $self->rel_path;
2283 my @a_path_components;
2284 my $i;
2285 while (@b_path_components) {
2286 $i = $paths->{'/'.join('/', @b_path_components)};
2287 last if $i && defined $i->{copyfrom_path};
2288 unshift(@a_path_components, pop(@b_path_components));
2289 }
2290 return undef unless defined $i && defined $i->{copyfrom_path};
2291 my $branch_from = $i->{copyfrom_path};
2292 if (@a_path_components) {
2293 print STDERR "branch_from: $branch_from => ";
2294 $branch_from .= '/'.join('/', @a_path_components);
2295 print STDERR $branch_from, "\n";
2296 }
2297 my $r = $i->{copyfrom_rev};
2298 my $repos_root = $self->ra->{repos_root};
2299 my $url = $self->ra->{url};
2300 my $new_url = $repos_root . $branch_from;
2301 print STDERR "Found possible branch point: ",
2302 "$new_url => ", $self->full_url, ", $r\n";
2303 $branch_from =~ s#^/##;
2304 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
2305 unless ($gs) {
2306 my $ref_id = $self->{ref_id};
2307 $ref_id =~ s/\@\d+$//;
2308 $ref_id .= "\@$r";
2309 # just grow a tail if we're not unique enough :x
2310 $ref_id .= '-' while find_ref($ref_id);
2311 print STDERR "Initializing parent: $ref_id\n";
2312 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
2313 if ($u =~ s#^\Q$url\E(/|$)##) {
2314 $p = $u;
2315 $u = $url;
2316 $repo_id = $self->{repo_id};
2317 }
2318 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
2319 }
2320 my ($r0, $parent) = $gs->find_rev_before($r, 1);
2321 {
2322 my ($base, $head);
2323 if (!defined $r0 || !defined $parent) {
2324 ($base, $head) = parse_revision_argument(0, $r);
2325 } else {
2326 if ($r0 < $r) {
2327 $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
2328 0, 1, sub { $base = $_[1] - 1 });
2329 }
2330 }
2331 if (defined $base && $base <= $r) {
2332 $gs->fetch($base, $r);
2333 }
2334 ($r0, $parent) = $gs->find_rev_before($r, 1);
2335 }
2336 if (defined $r0 && defined $parent) {
2337 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
2338 my $ed;
2339 if ($self->ra->can_do_switch) {
2340 $self->assert_index_clean($parent);
2341 print STDERR "Following parent with do_switch\n";
2342 # do_switch works with svn/trunk >= r22312, but that
2343 # is not included with SVN 1.4.3 (the latest version
2344 # at the moment), so we can't rely on it
2345 $self->{last_commit} = $parent;
2346 $ed = SVN::Git::Fetcher->new($self);
2347 $gs->ra->gs_do_switch($r0, $rev, $gs,
2348 $self->full_url, $ed)
2349 or die "SVN connection failed somewhere...\n";
2350 } elsif ($self->ra->trees_match($new_url, $r0,
2351 $self->full_url, $rev)) {
2352 print STDERR "Trees match:\n",
2353 " $new_url\@$r0\n",
2354 " ${\$self->full_url}\@$rev\n",
2355 "Following parent with no changes\n";
2356 $self->tmp_index_do(sub {
2357 command_noisy('read-tree', $parent);
2358 });
2359 $self->{last_commit} = $parent;
2360 } else {
2361 print STDERR "Following parent with do_update\n";
2362 $ed = SVN::Git::Fetcher->new($self);
2363 $self->ra->gs_do_update($rev, $rev, $self, $ed)
2364 or die "SVN connection failed somewhere...\n";
2365 }
2366 print STDERR "Successfully followed parent\n";
2367 return $self->make_log_entry($rev, [$parent], $ed);
2368 }
2369 return undef;
2370 }
2371
2372 sub do_fetch {
2373 my ($self, $paths, $rev) = @_;
2374 my $ed;
2375 my ($last_rev, @parents);
2376 if (my $lc = $self->last_commit) {
2377 # we can have a branch that was deleted, then re-added
2378 # under the same name but copied from another path, in
2379 # which case we'll have multiple parents (we don't
2380 # want to break the original ref, nor lose copypath info):
2381 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2382 push @{$log_entry->{parents}}, $lc;
2383 return $log_entry;
2384 }
2385 $ed = SVN::Git::Fetcher->new($self);
2386 $last_rev = $self->{last_rev};
2387 $ed->{c} = $lc;
2388 @parents = ($lc);
2389 } else {
2390 $last_rev = $rev;
2391 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
2392 return $log_entry;
2393 }
2394 $ed = SVN::Git::Fetcher->new($self);
2395 }
2396 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
2397 die "SVN connection failed somewhere...\n";
2398 }
2399 $self->make_log_entry($rev, \@parents, $ed);
2400 }
2401
2402 sub get_untracked {
2403 my ($self, $ed) = @_;
2404 my @out;
2405 my $h = $ed->{empty};
2406 foreach (sort keys %$h) {
2407 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2408 push @out, " $act: " . uri_encode($_);
2409 warn "W: $act: $_\n";
2410 }
2411 foreach my $t (qw/dir_prop file_prop/) {
2412 $h = $ed->{$t} or next;
2413 foreach my $path (sort keys %$h) {
2414 my $ppath = $path eq '' ? '.' : $path;
2415 foreach my $prop (sort keys %{$h->{$path}}) {
2416 next if $SKIP_PROP{$prop};
2417 my $v = $h->{$path}->{$prop};
2418 my $t_ppath_prop = "$t: " .
2419 uri_encode($ppath) . ' ' .
2420 uri_encode($prop);
2421 if (defined $v) {
2422 push @out, " +$t_ppath_prop " .
2423 uri_encode($v);
2424 } else {
2425 push @out, " -$t_ppath_prop";
2426 }
2427 }
2428 }
2429 }
2430 foreach my $t (qw/absent_file absent_directory/) {
2431 $h = $ed->{$t} or next;
2432 foreach my $parent (sort keys %$h) {
2433 foreach my $path (sort @{$h->{$parent}}) {
2434 push @out, " $t: " .
2435 uri_encode("$parent/$path");
2436 warn "W: $t: $parent/$path ",
2437 "Insufficient permissions?\n";
2438 }
2439 }
2440 }
2441 \@out;
2442 }
2443
2444 sub parse_svn_date {
2445 my $date = shift || return '+0000 1970-01-01 00:00:00';
2446 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2447 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
2448 croak "Unable to parse date: $date\n";
2449 "+0000 $Y-$m-$d $H:$M:$S";
2450 }
2451
2452 sub check_author {
2453 my ($author) = @_;
2454 if (!defined $author || length $author == 0) {
2455 $author = '(no author)';
2456 } elsif (defined $::_authors && ! defined $::users{$author}) {
2457 die "Author: $author not defined in $::_authors file\n";
2458 }
2459 $author;
2460 }
2461
2462 sub make_log_entry {
2463 my ($self, $rev, $parents, $ed) = @_;
2464 my $untracked = $self->get_untracked($ed);
2465
2466 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
2467 print $un "r$rev\n" or croak $!;
2468 print $un $_, "\n" foreach @$untracked;
2469 my %log_entry = ( parents => $parents || [], revision => $rev,
2470 log => '');
2471
2472 my $headrev;
2473 my $logged = delete $self->{logged_rev_props};
2474 if (!$logged || $self->{-want_revprops}) {
2475 my $rp = $self->ra->rev_proplist($rev);
2476 foreach (sort keys %$rp) {
2477 my $v = $rp->{$_};
2478 if (/^svn:(author|date|log)$/) {
2479 $log_entry{$1} = $v;
2480 } elsif ($_ eq 'svm:headrev') {
2481 $headrev = $v;
2482 } else {
2483 print $un " rev_prop: ", uri_encode($_), ' ',
2484 uri_encode($v), "\n";
2485 }
2486 }
2487 } else {
2488 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
2489 }
2490 close $un or croak $!;
2491
2492 $log_entry{date} = parse_svn_date($log_entry{date});
2493 $log_entry{log} .= "\n";
2494 my $author = $log_entry{author} = check_author($log_entry{author});
2495 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
2496 : ($author, undef);
2497
2498 my ($commit_name, $commit_email) = ($name, $email);
2499 if ($_use_log_author) {
2500 my $name_field;
2501 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
2502 $name_field = $1;
2503 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
2504 $name_field = $1;
2505 }
2506 if (!defined $name_field) {
2507 if (!defined $email) {
2508 $email = $name;
2509 }
2510 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
2511 ($name, $email) = ($1, $2);
2512 } elsif ($name_field =~ /(.*)@/) {
2513 ($name, $email) = ($1, $name_field);
2514 } else {
2515 ($name, $email) = ($name_field, $name_field);
2516 }
2517 }
2518 if (defined $headrev && $self->use_svm_props) {
2519 if ($self->rewrite_root) {
2520 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
2521 "options set!\n";
2522 }
2523 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
2524 # we don't want "SVM: initializing mirror for junk" ...
2525 return undef if $r == 0;
2526 my $svm = $self->svm;
2527 if ($uuid ne $svm->{uuid}) {
2528 die "UUID mismatch on SVM path:\n",
2529 "expected: $svm->{uuid}\n",
2530 " got: $uuid\n";
2531 }
2532 my $full_url = $self->full_url;
2533 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
2534 die "Failed to replace '$svm->{replace}' with ",
2535 "'$svm->{source}' in $full_url\n";
2536 # throw away username for storing in records
2537 remove_username($full_url);
2538 $log_entry{metadata} = "$full_url\@$r $uuid";
2539 $log_entry{svm_revision} = $r;
2540 $email ||= "$author\@$uuid";
2541 $commit_email ||= "$author\@$uuid";
2542 } elsif ($self->use_svnsync_props) {
2543 my $full_url = $self->svnsync->{url};
2544 $full_url .= "/$self->{path}" if length $self->{path};
2545 remove_username($full_url);
2546 my $uuid = $self->svnsync->{uuid};
2547 $log_entry{metadata} = "$full_url\@$rev $uuid";
2548 $email ||= "$author\@$uuid";
2549 $commit_email ||= "$author\@$uuid";
2550 } else {
2551 my $url = $self->metadata_url;
2552 remove_username($url);
2553 $log_entry{metadata} = "$url\@$rev " .
2554 $self->ra->get_uuid;
2555 $email ||= "$author\@" . $self->ra->get_uuid;
2556 $commit_email ||= "$author\@" . $self->ra->get_uuid;
2557 }
2558 $log_entry{name} = $name;
2559 $log_entry{email} = $email;
2560 $log_entry{commit_name} = $commit_name;
2561 $log_entry{commit_email} = $commit_email;
2562 \%log_entry;
2563 }
2564
2565 sub fetch {
2566 my ($self, $min_rev, $max_rev, @parents) = @_;
2567 my ($last_rev, $last_commit) = $self->last_rev_commit;
2568 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
2569 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
2570 }
2571
2572 sub set_tree_cb {
2573 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2574 $self->{inject_parents} = { $rev => $tree };
2575 $self->fetch(undef, undef);
2576 }
2577
2578 sub set_tree {
2579 my ($self, $tree) = (shift, shift);
2580 my $log_entry = ::get_commit_entry($tree);
2581 unless ($self->{last_rev}) {
2582 ::fatal("Must have an existing revision to commit");
2583 }
2584 my %ed_opts = ( r => $self->{last_rev},
2585 log => $log_entry->{log},
2586 ra => $self->ra,
2587 tree_a => $self->{last_commit},
2588 tree_b => $tree,
2589 editor_cb => sub {
2590 $self->set_tree_cb($log_entry, $tree, @_) },
2591 svn_path => $self->{path} );
2592 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
2593 print "No changes\nr$self->{last_rev} = $tree\n";
2594 }
2595 }
2596
2597 sub rebuild_from_rev_db {
2598 my ($self, $path) = @_;
2599 my $r = -1;
2600 open my $fh, '<', $path or croak "open: $!";
2601 binmode $fh or croak "binmode: $!";
2602 while (<$fh>) {
2603 length($_) == 41 or croak "inconsistent size in ($_) != 41";
2604 chomp($_);
2605 ++$r;
2606 next if $_ eq ('0' x 40);
2607 $self->rev_map_set($r, $_);
2608 print "r$r = $_\n";
2609 }
2610 close $fh or croak "close: $!";
2611 unlink $path or croak "unlink: $!";
2612 }
2613
2614 sub rebuild {
2615 my ($self) = @_;
2616 my $map_path = $self->map_path;
2617 return if (-e $map_path && ! -z $map_path);
2618 return unless ::verify_ref($self->refname.'^0');
2619 if ($self->use_svm_props || $self->no_metadata) {
2620 my $rev_db = $self->rev_db_path;
2621 $self->rebuild_from_rev_db($rev_db);
2622 if ($self->use_svm_props) {
2623 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
2624 $self->rebuild_from_rev_db($svm_rev_db);
2625 }
2626 $self->unlink_rev_db_symlink;
2627 return;
2628 }
2629 print "Rebuilding $map_path ...\n";
2630 my ($log, $ctx) =
2631 command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
2632 $self->refname, '--');
2633 my $metadata_url = $self->metadata_url;
2634 remove_username($metadata_url);
2635 my $svn_uuid = $self->ra_uuid;
2636 my $c;
2637 while (<$log>) {
2638 if ( m{^commit ($::sha1)$} ) {
2639 $c = $1;
2640 next;
2641 }
2642 next unless s{^\s*(git-svn-id:)}{$1};
2643 my ($url, $rev, $uuid) = ::extract_metadata($_);
2644 remove_username($url);
2645
2646 # ignore merges (from set-tree)
2647 next if (!defined $rev || !$uuid);
2648
2649 # if we merged or otherwise started elsewhere, this is
2650 # how we break out of it
2651 if (($uuid ne $svn_uuid) ||
2652 ($metadata_url && $url && ($url ne $metadata_url))) {
2653 next;
2654 }
2655
2656 $self->rev_map_set($rev, $c);
2657 print "r$rev = $c\n";
2658 }
2659 command_close_pipe($log, $ctx);
2660 print "Done rebuilding $map_path\n";
2661 my $rev_db_path = $self->rev_db_path;
2662 if (-f $self->rev_db_path) {
2663 unlink $self->rev_db_path or croak "unlink: $!";
2664 }
2665 $self->unlink_rev_db_symlink;
2666 }
2667
2668 # rev_map:
2669 # Tie::File seems to be prone to offset errors if revisions get sparse,
2670 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
2671 # one of my favorite modules is out :< Next up would be one of the DBM
2672 # modules, but I'm not sure which is most portable...
2673 #
2674 # This is the replacement for the rev_db format, which was too big
2675 # and inefficient for large repositories with a lot of sparse history
2676 # (mainly tags)
2677 #
2678 # The format is this:
2679 # - 24 bytes for every record,
2680 # * 4 bytes for the integer representing an SVN revision number
2681 # * 20 bytes representing the sha1 of a git commit
2682 # - No empty padding records like the old format
2683 # (except the last record, which can be overwritten)
2684 # - new records are written append-only since SVN revision numbers
2685 # increase monotonically
2686 # - lookups on SVN revision number are done via a binary search
2687 # - Piping the file to xxd -c24 is a good way of dumping it for
2688 # viewing or editing (piped back through xxd -r), should the need
2689 # ever arise.
2690 # - The last record can be padding revision with an all-zero sha1
2691 # This is used to optimize fetch performance when using multiple
2692 # "fetch" directives in .git/config
2693 #
2694 # These files are disposable unless noMetadata or useSvmProps is set
2695
2696 sub _rev_map_set {
2697 my ($fh, $rev, $commit) = @_;
2698
2699 binmode $fh or croak "binmode: $!";
2700 my $size = (stat($fh))[7];
2701 ($size % 24) == 0 or croak "inconsistent size: $size";
2702
2703 my $wr_offset = 0;
2704 if ($size > 0) {
2705 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2706 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
2707 $read == 24 or croak "read only $read bytes (!= 24)";
2708 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
2709 if ($last_commit eq ('0' x40)) {
2710 if ($size >= 48) {
2711 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2712 $read = sysread($fh, $buf, 24) or
2713 croak "read: $!";
2714 $read == 24 or
2715 croak "read only $read bytes (!= 24)";
2716 ($last_rev, $last_commit) =
2717 unpack(rev_map_fmt, $buf);
2718 if ($last_commit eq ('0' x40)) {
2719 croak "inconsistent .rev_map\n";
2720 }
2721 }
2722 if ($last_rev >= $rev) {
2723 croak "last_rev is higher!: $last_rev >= $rev";
2724 }
2725 $wr_offset = -24;
2726 }
2727 }
2728 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
2729 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
2730 croak "write: $!";
2731 }
2732
2733 sub mkfile {
2734 my ($path) = @_;
2735 unless (-e $path) {
2736 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2737 mkpath([$dir]) unless -d $dir;
2738 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2739 close $fh or die "Couldn't close (create) $path: $!\n";
2740 }
2741 }
2742
2743 sub rev_map_set {
2744 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2745 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2746 my $db = $self->map_path($uuid);
2747 my $db_lock = "$db.lock";
2748 my $sig;
2749 if ($update_ref) {
2750 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2751 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
2752 }
2753 mkfile($db);
2754
2755 $LOCKFILES{$db_lock} = 1;
2756 my $sync;
2757 # both of these options make our .rev_db file very, very important
2758 # and we can't afford to lose it because rebuild() won't work
2759 if ($self->use_svm_props || $self->no_metadata) {
2760 $sync = 1;
2761 copy($db, $db_lock) or die "rev_map_set(@_): ",
2762 "Failed to copy: ",
2763 "$db => $db_lock ($!)\n";
2764 } else {
2765 rename $db, $db_lock or die "rev_map_set(@_): ",
2766 "Failed to rename: ",
2767 "$db => $db_lock ($!)\n";
2768 }
2769
2770 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
2771 or croak "Couldn't open $db_lock: $!\n";
2772 _rev_map_set($fh, $rev, $commit);
2773 if ($sync) {
2774 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2775 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2776 }
2777 close $fh or croak $!;
2778 if ($update_ref) {
2779 $_head = $self;
2780 command_noisy('update-ref', '-m', "r$rev",
2781 $self->refname, $commit);
2782 }
2783 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
2784 "$db_lock => $db ($!)\n";
2785 delete $LOCKFILES{$db_lock};
2786 if ($update_ref) {
2787 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2788 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2789 kill $sig, $$ if defined $sig;
2790 }
2791 }
2792
2793 # If want_commit, this will return an array of (rev, commit) where
2794 # commit _must_ be a valid commit in the archive.
2795 # Otherwise, it'll return the max revision (whether or not the
2796 # commit is valid or just a 0x40 placeholder).
2797 sub rev_map_max {
2798 my ($self, $want_commit) = @_;
2799 $self->rebuild;
2800 my $map_path = $self->map_path;
2801 stat $map_path or return $want_commit ? (0, undef) : 0;
2802 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2803 binmode $fh or croak "binmode: $!";
2804 my $size = (stat($fh))[7];
2805 ($size % 24) == 0 or croak "inconsistent size: $size";
2806
2807 if ($size == 0) {
2808 close $fh or croak "close: $!";
2809 return $want_commit ? (0, undef) : 0;
2810 }
2811
2812 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2813 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2814 my ($r, $c) = unpack(rev_map_fmt, $buf);
2815 if ($want_commit && $c eq ('0' x40)) {
2816 if ($size < 48) {
2817 return $want_commit ? (0, undef) : 0;
2818 }
2819 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2820 sysread($fh, $buf, 24) == 24 or croak "read: $!";
2821 ($r, $c) = unpack(rev_map_fmt, $buf);
2822 if ($c eq ('0'x40)) {
2823 croak "Penultimate record is all-zeroes in $map_path";
2824 }
2825 }
2826 close $fh or croak "close: $!";
2827 $want_commit ? ($r, $c) : $r;
2828 }
2829
2830 sub rev_map_get {
2831 my ($self, $rev, $uuid) = @_;
2832 my $map_path = $self->map_path($uuid);
2833 return undef unless -e $map_path;
2834
2835 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2836 binmode $fh or croak "binmode: $!";
2837 my $size = (stat($fh))[7];
2838 ($size % 24) == 0 or croak "inconsistent size: $size";
2839
2840 if ($size == 0) {
2841 close $fh or croak "close: $fh";
2842 return undef;
2843 }
2844
2845 my ($l, $u) = (0, $size - 24);
2846 my ($r, $c, $buf);
2847
2848 while ($l <= $u) {
2849 my $i = int(($l/24 + $u/24) / 2) * 24;
2850 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
2851 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2852 my ($r, $c) = unpack('NH40', $buf);
2853
2854 if ($r < $rev) {
2855 $l = $i + 24;
2856 } elsif ($r > $rev) {
2857 $u = $i - 24;
2858 } else { # $r == $rev
2859 close($fh) or croak "close: $!";
2860 return $c eq ('0' x 40) ? undef : $c;
2861 }
2862 }
2863 close($fh) or croak "close: $!";
2864 undef;
2865 }
2866
2867 # Finds the first svn revision that exists on (if $eq_ok is true) or
2868 # before $rev for the current branch. It will not search any lower
2869 # than $min_rev. Returns the git commit hash and svn revision number
2870 # if found, else (undef, undef).
2871 sub find_rev_before {
2872 my ($self, $rev, $eq_ok, $min_rev) = @_;
2873 --$rev unless $eq_ok;
2874 $min_rev ||= 1;
2875 while ($rev >= $min_rev) {
2876 if (my $c = $self->rev_map_get($rev)) {
2877 return ($rev, $c);
2878 }
2879 --$rev;
2880 }
2881 return (undef, undef);
2882 }
2883
2884 # Finds the first svn revision that exists on (if $eq_ok is true) or
2885 # after $rev for the current branch. It will not search any higher
2886 # than $max_rev. Returns the git commit hash and svn revision number
2887 # if found, else (undef, undef).
2888 sub find_rev_after {
2889 my ($self, $rev, $eq_ok, $max_rev) = @_;
2890 ++$rev unless $eq_ok;
2891 $max_rev ||= $self->rev_map_max;
2892 while ($rev <= $max_rev) {
2893 if (my $c = $self->rev_map_get($rev)) {
2894 return ($rev, $c);
2895 }
2896 ++$rev;
2897 }
2898 return (undef, undef);
2899 }
2900
2901 sub _new {
2902 my ($class, $repo_id, $ref_id, $path) = @_;
2903 unless (defined $repo_id && length $repo_id) {
2904 $repo_id = $Git::SVN::default_repo_id;
2905 }
2906 unless (defined $ref_id && length $ref_id) {
2907 $_[2] = $ref_id = $Git::SVN::default_ref_id;
2908 }
2909 $_[1] = $repo_id;
2910 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2911 $_[3] = $path = '' unless (defined $path);
2912 mkpath(["$ENV{GIT_DIR}/svn"]);
2913 bless {
2914 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2915 path => $path, config => "$ENV{GIT_DIR}/svn/config",
2916 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
2917 }
2918
2919 # for read-only access of old .rev_db formats
2920 sub unlink_rev_db_symlink {
2921 my ($self) = @_;
2922 my $link = $self->rev_db_path;
2923 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
2924 if (-l $link) {
2925 unlink $link or croak "unlink: $link failed!";
2926 }
2927 }
2928
2929 sub rev_db_path {
2930 my ($self, $uuid) = @_;
2931 my $db_path = $self->map_path($uuid);
2932 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
2933 or croak "map_path: $db_path does not contain '/.rev_map.' !";
2934 $db_path;
2935 }
2936
2937 # the new replacement for .rev_db
2938 sub map_path {
2939 my ($self, $uuid) = @_;
2940 $uuid ||= $self->ra_uuid;
2941 "$self->{map_root}.$uuid";
2942 }
2943
2944 sub uri_encode {
2945 my ($f) = @_;
2946 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2947 $f
2948 }
2949
2950 sub remove_username {
2951 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
2952 }
2953
2954 package Git::SVN::Prompt;
2955 use strict;
2956 use warnings;
2957 require SVN::Core;
2958 use vars qw/$_no_auth_cache $_username/;
2959
2960 sub simple {
2961 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2962 $may_save = undef if $_no_auth_cache;
2963 $default_username = $_username if defined $_username;
2964 if (defined $default_username && length $default_username) {
2965 if (defined $realm && length $realm) {
2966 print STDERR "Authentication realm: $realm\n";
2967 STDERR->flush;
2968 }
2969 $cred->username($default_username);
2970 } else {
2971 username($cred, $realm, $may_save, $pool);
2972 }
2973 $cred->password(_read_password("Password for '" .
2974 $cred->username . "': ", $realm));
2975 $cred->may_save($may_save);
2976 $SVN::_Core::SVN_NO_ERROR;
2977 }
2978
2979 sub ssl_server_trust {
2980 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2981 $may_save = undef if $_no_auth_cache;
2982 print STDERR "Error validating server certificate for '$realm':\n";
2983 {
2984 no warnings 'once';
2985 # All variables SVN::Auth::SSL::* are used only once,
2986 # so we're shutting up Perl warnings about this.
2987 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2988 print STDERR " - The certificate is not issued ",
2989 "by a trusted authority. Use the\n",
2990 " fingerprint to validate ",
2991 "the certificate manually!\n";
2992 }
2993 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2994 print STDERR " - The certificate hostname ",
2995 "does not match.\n";
2996 }
2997 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2998 print STDERR " - The certificate is not yet valid.\n";
2999 }
3000 if ($failures & $SVN::Auth::SSL::EXPIRED) {
3001 print STDERR " - The certificate has expired.\n";
3002 }
3003 if ($failures & $SVN::Auth::SSL::OTHER) {
3004 print STDERR " - The certificate has ",
3005 "an unknown error.\n";
3006 }
3007 } # no warnings 'once'
3008 printf STDERR
3009 "Certificate information:\n".
3010 " - Hostname: %s\n".
3011 " - Valid: from %s until %s\n".
3012 " - Issuer: %s\n".
3013 " - Fingerprint: %s\n",
3014 map $cert_info->$_, qw(hostname valid_from valid_until
3015 issuer_dname fingerprint);
3016 my $choice;
3017 prompt:
3018 print STDERR $may_save ?
3019 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
3020 "(R)eject or accept (t)emporarily? ";
3021 STDERR->flush;
3022 $choice = lc(substr(<STDIN> || 'R', 0, 1));
3023 if ($choice =~ /^t$/i) {
3024 $cred->may_save(undef);
3025 } elsif ($choice =~ /^r$/i) {
3026 return -1;
3027 } elsif ($may_save && $choice =~ /^p$/i) {
3028 $cred->may_save($may_save);
3029 } else {
3030 goto prompt;
3031 }
3032 $cred->accepted_failures($failures);
3033 $SVN::_Core::SVN_NO_ERROR;
3034 }
3035
3036 sub ssl_client_cert {
3037 my ($cred, $realm, $may_save, $pool) = @_;
3038 $may_save = undef if $_no_auth_cache;
3039 print STDERR "Client certificate filename: ";
3040 STDERR->flush;
3041 chomp(my $filename = <STDIN>);
3042 $cred->cert_file($filename);
3043 $cred->may_save($may_save);
3044 $SVN::_Core::SVN_NO_ERROR;
3045 }
3046
3047 sub ssl_client_cert_pw {
3048 my ($cred, $realm, $may_save, $pool) = @_;
3049 $may_save = undef if $_no_auth_cache;
3050 $cred->password(_read_password("Password: ", $realm));
3051 $cred->may_save($may_save);
3052 $SVN::_Core::SVN_NO_ERROR;
3053 }
3054
3055 sub username {
3056 my ($cred, $realm, $may_save, $pool) = @_;
3057 $may_save = undef if $_no_auth_cache;
3058 if (defined $realm && length $realm) {
3059 print STDERR "Authentication realm: $realm\n";
3060 }
3061 my $username;
3062 if (defined $_username) {
3063 $username = $_username;
3064 } else {
3065 print STDERR "Username: ";
3066 STDERR->flush;
3067 chomp($username = <STDIN>);
3068 }
3069 $cred->username($username);
3070 $cred->may_save($may_save);
3071 $SVN::_Core::SVN_NO_ERROR;
3072 }
3073
3074 sub _read_password {
3075 my ($prompt, $realm) = @_;
3076 print STDERR $prompt;
3077 STDERR->flush;
3078 require Term::ReadKey;
3079 Term::ReadKey::ReadMode('noecho');
3080 my $password = '';
3081 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
3082 last if $key =~ /[\012\015]/; # \n\r
3083 $password .= $key;
3084 }
3085 Term::ReadKey::ReadMode('restore');
3086 print STDERR "\n";
3087 STDERR->flush;
3088 $password;
3089 }
3090
3091 package SVN::Git::Fetcher;
3092 use vars qw/@ISA/;
3093 use strict;
3094 use warnings;
3095 use Carp qw/croak/;
3096 use File::Temp qw/tempfile/;
3097 use IO::File qw//;
3098
3099 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
3100 sub new {
3101 my ($class, $git_svn) = @_;
3102 my $self = SVN::Delta::Editor->new;
3103 bless $self, $class;
3104 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
3105 $self->{empty} = {};
3106 $self->{dir_prop} = {};
3107 $self->{file_prop} = {};
3108 $self->{absent_dir} = {};
3109 $self->{absent_file} = {};
3110 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
3111 $self;
3112 }
3113
3114 sub set_path_strip {
3115 my ($self, $path) = @_;
3116 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
3117 }
3118
3119 sub open_root {
3120 { path => '' };
3121 }
3122
3123 sub open_directory {
3124 my ($self, $path, $pb, $rev) = @_;
3125 { path => $path };
3126 }
3127
3128 sub git_path {
3129 my ($self, $path) = @_;
3130 if ($self->{path_strip}) {
3131 $path =~ s!$self->{path_strip}!! or
3132 die "Failed to strip path '$path' ($self->{path_strip})\n";
3133 }
3134 $path;
3135 }
3136
3137 sub delete_entry {
3138 my ($self, $path, $rev, $pb) = @_;
3139
3140 my $gpath = $self->git_path($path);
3141 return undef if ($gpath eq '');
3142
3143 # remove entire directories.
3144 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
3145 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3146 -r --name-only -z/,
3147 $self->{c}, '--', $gpath);
3148 local $/ = "\0";
3149 while (<$ls>) {
3150 chomp;
3151 $self->{gii}->remove($_);
3152 print "\tD\t$_\n" unless $::_q;
3153 }
3154 print "\tD\t$gpath/\n" unless $::_q;
3155 command_close_pipe($ls, $ctx);
3156 $self->{empty}->{$path} = 0
3157 } else {
3158 $self->{gii}->remove($gpath);
3159 print "\tD\t$gpath\n" unless $::_q;
3160 }
3161 undef;
3162 }
3163
3164 sub open_file {
3165 my ($self, $path, $pb, $rev) = @_;
3166 my $gpath = $self->git_path($path);
3167 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
3168 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
3169 unless (defined $mode && defined $blob) {
3170 die "$path was not found in commit $self->{c} (r$rev)\n";
3171 }
3172 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
3173 pool => SVN::Pool->new, action => 'M' };
3174 }
3175
3176 sub add_file {
3177 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
3178 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3179 delete $self->{empty}->{$dir};
3180 { path => $path, mode_a => 100644, mode_b => 100644,
3181 pool => SVN::Pool->new, action => 'A' };
3182 }
3183
3184 sub add_directory {
3185 my ($self, $path, $cp_path, $cp_rev) = @_;
3186 my $gpath = $self->git_path($path);
3187 if ($gpath eq '') {
3188 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
3189 -r --name-only -z/,
3190 $self->{c});
3191 local $/ = "\0";
3192 while (<$ls>) {
3193 chomp;
3194 $self->{gii}->remove($_);
3195 print "\tD\t$_\n" unless $::_q;
3196 }
3197 command_close_pipe($ls, $ctx);
3198 $self->{empty}->{$path} = 0;
3199 }
3200 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
3201 delete $self->{empty}->{$dir};
3202 $self->{empty}->{$path} = 1;
3203 { path => $path };
3204 }
3205
3206 sub change_dir_prop {
3207 my ($self, $db, $prop, $value) = @_;
3208 $self->{dir_prop}->{$db->{path}} ||= {};
3209 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
3210 undef;
3211 }
3212
3213 sub absent_directory {
3214 my ($self, $path, $pb) = @_;
3215 $self->{absent_dir}->{$pb->{path}} ||= [];
3216 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
3217 undef;
3218 }
3219
3220 sub absent_file {
3221 my ($self, $path, $pb) = @_;
3222 $self->{absent_file}->{$pb->{path}} ||= [];
3223 push @{$self->{absent_file}->{$pb->{path}}}, $path;
3224 undef;
3225 }
3226
3227 sub change_file_prop {
3228 my ($self, $fb, $prop, $value) = @_;
3229 if ($prop eq 'svn:executable') {
3230 if ($fb->{mode_b} != 120000) {
3231 $fb->{mode_b} = defined $value ? 100755 : 100644;
3232 }
3233 } elsif ($prop eq 'svn:special') {
3234 $fb->{mode_b} = defined $value ? 120000 : 100644;
3235 } else {
3236 $self->{file_prop}->{$fb->{path}} ||= {};
3237 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
3238 }
3239 undef;
3240 }
3241
3242 sub apply_textdelta {
3243 my ($self, $fb, $exp) = @_;
3244 my $fh = Git::temp_acquire('svn_delta');
3245 # $fh gets auto-closed() by SVN::TxDelta::apply(),
3246 # (but $base does not,) so dup() it for reading in close_file
3247 open my $dup, '<&', $fh or croak $!;
3248 my $base = Git::temp_acquire('git_blob');
3249 if ($fb->{blob}) {
3250 print $base 'link ' if ($fb->{mode_a} == 120000);
3251 my $size = $::_repository->cat_blob($fb->{blob}, $base);
3252 die "Failed to read object $fb->{blob}" if ($size < 0);
3253
3254 if (defined $exp) {
3255 seek $base, 0, 0 or croak $!;
3256 my $got = ::md5sum($base);
3257 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
3258 "expected: $exp\n",
3259 " got: $got\n" if ($got ne $exp);
3260 }
3261 }
3262 seek $base, 0, 0 or croak $!;
3263 $fb->{fh} = $fh;
3264 $fb->{base} = $base;
3265 [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
3266 }
3267
3268 sub close_file {
3269 my ($self, $fb, $exp) = @_;
3270 my $hash;
3271 my $path = $self->git_path($fb->{path});
3272 if (my $fh = $fb->{fh}) {
3273 if (defined $exp) {
3274 seek($fh, 0, 0) or croak $!;
3275 my $got = ::md5sum($fh);
3276 if ($got ne $exp) {
3277 die "Checksum mismatch: $path\n",
3278 "expected: $exp\n got: $got\n";
3279 }
3280 }
3281 if ($fb->{mode_b} == 120000) {
3282 sysseek($fh, 0, 0) or croak $!;
3283 sysread($fh, my $buf, 5) == 5 or croak $!;
3284
3285 unless ($buf eq 'link ') {
3286 warn "$path has mode 120000",
3287 " but is not a link\n";
3288 } else {
3289 my $tmp_fh = Git::temp_acquire('svn_hash');