1#!/usr/bin/env perl
2# Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3# License: GPL v2 or later
4use warnings;
5use strict;
6use vars qw/ $AUTHOR $VERSION
7 $sha1 $sha1_short $_revision
8 $_q $_authors %users/;
9$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
10$VERSION = '@@GIT_VERSION@@';
11$ENV{GIT_DIR} ||= '.git';
13$Git::SVN::default_repo_id = 'svn';
14$Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
15$Git::SVN::Ra::_log_window_size = 100;
16$Git::SVN::Log::TZ = $ENV{TZ};
18$ENV{TZ} = 'UTC';
19$| = 1; # unbuffer STDOUT
20sub fatal (@) { print STDERR @_; exit 1 }
22require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
23require SVN::Ra;
24require SVN::Delta;
25if ($SVN::Core::VERSION lt '1.1.0') {
26 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)\n";
27}
28push @Git::SVN::Ra::ISA, 'SVN::Ra';
29push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
30push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
31use Carp qw/croak/;
32use IO::File qw//;
33use File::Basename qw/dirname basename/;
34use File::Path qw/mkpath/;
35use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
36use IPC::Open3;
37use Git;
38BEGIN {
40 my $s;
41 foreach (qw/command command_oneline command_noisy command_output_pipe
42 command_input_pipe command_close_pipe/) {
43 $s .= "*SVN::Git::Editor::$_ = *SVN::Git::Fetcher::$_ = ".
44 "*Git::SVN::Migration::$_ = ".
45 "*Git::SVN::Log::$_ = *Git::SVN::$_ = *$_ = *Git::$_; ";
46 }
47 eval $s;
48}
49my ($SVN);
51$sha1 = qr/[a-f\d]{40}/;
53$sha1_short = qr/[a-f\d]{4,40}/;
54my ($_stdin, $_help, $_edit,
55 $_message, $_file,
56 $_template, $_shared,
57 $_version, $_fetch_all,
58 $_merge, $_strategy, $_dry_run,
59 $_prefix, $_no_checkout, $_verbose);
60$Git::SVN::_follow_parent = 1;
61my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
62 'config-dir=s' => \$Git::SVN::Ra::config_dir,
63 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache );
64my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
65 'authors-file|A=s' => \$_authors,
66 'repack:i' => \$Git::SVN::_repack,
67 'noMetadata' => \$Git::SVN::_no_metadata,
68 'useSvmProps' => \$Git::SVN::_use_svm_props,
69 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
70 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
71 'no-checkout' => \$_no_checkout,
72 'quiet|q' => \$_q,
73 'repack-flags|repack-args|repack-opts=s' =>
74 \$Git::SVN::_repack_flags,
75 %remote_opts );
76my ($_trunk, $_tags, $_branches);
78my %icv;
79my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
80 'trunk|T=s' => \$_trunk, 'tags|t=s' => \$_tags,
81 'branches|b=s' => \$_branches, 'prefix=s' => \$_prefix,
82 'no-metadata' => sub { $icv{noMetadata} = 1 },
83 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
84 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
85 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
86 %remote_opts );
87my %cmt_opts = ( 'edit|e' => \$_edit,
88 'rmdir' => \$SVN::Git::Editor::_rmdir,
89 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder,
90 'l=i' => \$SVN::Git::Editor::_rename_limit,
91 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity
92);
93my %cmd = (
95 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
96 { 'revision|r=s' => \$_revision,
97 'fetch-all|all' => \$_fetch_all,
98 %fc_opts } ],
99 clone => [ \&cmd_clone, "Initialize and fetch revisions",
100 { 'revision|r=s' => \$_revision,
101 %fc_opts, %init_opts } ],
102 init => [ \&cmd_init, "Initialize a repo for tracking" .
103 " (requires URL argument)",
104 \%init_opts ],
105 'multi-init' => [ \&cmd_multi_init,
106 "Deprecated alias for ".
107 "'$0 init -T<trunk> -b<branches> -t<tags>'",
108 \%init_opts ],
109 dcommit => [ \&cmd_dcommit,
110 'Commit several diffs to merge with upstream',
111 { 'merge|m|M' => \$_merge,
112 'strategy|s=s' => \$_strategy,
113 'verbose|v' => \$_verbose,
114 'dry-run|n' => \$_dry_run,
115 'fetch-all|all' => \$_fetch_all,
116 %cmt_opts, %fc_opts } ],
117 'set-tree' => [ \&cmd_set_tree,
118 "Set an SVN repository to a git tree-ish",
119 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
120 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
121 { 'revision|r=i' => \$_revision } ],
122 'multi-fetch' => [ \&cmd_multi_fetch,
123 "Deprecated alias for $0 fetch --all",
124 { 'revision|r=s' => \$_revision, %fc_opts } ],
125 'migrate' => [ sub { },
126 # no-op, we automatically run this anyways,
127 'Migrate configuration/metadata/layout from
128 previous versions of git-svn',
129 { 'minimize' => \$Git::SVN::Migration::_minimize,
130 %remote_opts } ],
131 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
132 { 'limit=i' => \$Git::SVN::Log::limit,
133 'revision|r=s' => \$_revision,
134 'verbose|v' => \$Git::SVN::Log::verbose,
135 'incremental' => \$Git::SVN::Log::incremental,
136 'oneline' => \$Git::SVN::Log::oneline,
137 'show-commit' => \$Git::SVN::Log::show_commit,
138 'non-recursive' => \$Git::SVN::Log::non_recursive,
139 'authors-file|A=s' => \$_authors,
140 'color' => \$Git::SVN::Log::color,
141 'pager=s' => \$Git::SVN::Log::pager,
142 } ],
143 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
144 { 'merge|m|M' => \$_merge,
145 'verbose|v' => \$_verbose,
146 'strategy|s=s' => \$_strategy,
147 'fetch-all|all' => \$_fetch_all,
148 %fc_opts } ],
149 'commit-diff' => [ \&cmd_commit_diff,
150 'Commit a diff between two trees',
151 { 'message|m=s' => \$_message,
152 'file|F=s' => \$_file,
153 'revision|r=s' => \$_revision,
154 %cmt_opts } ],
155);
156my $cmd;
158for (my $i = 0; $i < @ARGV; $i++) {
159 if (defined $cmd{$ARGV[$i]}) {
160 $cmd = $ARGV[$i];
161 splice @ARGV, $i, 1;
162 last;
163 }
164};
165my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
167read_repo_config(\%opts);
169my $rv = GetOptions(%opts, 'help|H|h' => \$_help, 'version|V' => \$_version,
170 'minimize-connections' => \$Git::SVN::Migration::_minimize,
171 'id|i=s' => \$Git::SVN::default_ref_id,
172 'svn-remote|remote|R=s' => sub {
173 $Git::SVN::no_reuse_existing = 1;
174 $Git::SVN::default_repo_id = $_[1] });
175exit 1 if (!$rv && $cmd ne 'log');
176usage(0) if $_help;
178version() if $_version;
179usage(1) unless defined $cmd;
180load_authors() if $_authors;
181unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
182 Git::SVN::Migration::migration_check();
183}
184Git::SVN::init_vars();
185eval {
186 Git::SVN::verify_remotes_sanity();
187 $cmd{$cmd}->[0]->(@ARGV);
188};
189fatal $@ if $@;
190post_fetch_checkout();
191exit 0;
192####################### primary functions ######################
194sub usage {
195 my $exit = shift || 0;
196 my $fd = $exit ? \*STDERR : \*STDOUT;
197 print $fd <<"";
198git-svn - bidirectional operations between a single Subversion tree and git
199Usage: $0 <command> [options] [arguments]\n
200 print $fd "Available commands:\n" unless $cmd;
202 foreach (sort keys %cmd) {
204 next if $cmd && $cmd ne $_;
205 next if /^multi-/; # don't show deprecated commands
206 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
207 foreach (keys %{$cmd{$_}->[2]}) {
208 # prints out arguments as they should be passed:
209 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
210 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
211 "--$_" : "-$_" }
212 split /\|/,$_)," $x\n";
213 }
214 }
215 print $fd <<"";
216\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
217arbitrary identifier if you're tracking multiple SVN branches/repositories in
218one git repository and want to keep them separate. See git-svn(1) for more
219information.
220 exit $exit;
222}
223sub version {
225 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
226 exit 0;
227}
228sub do_git_init_db {
230 unless (-d $ENV{GIT_DIR}) {
231 my @init_db = ('init');
232 push @init_db, "--template=$_template" if defined $_template;
233 if (defined $_shared) {
234 if ($_shared =~ /[a-z]/) {
235 push @init_db, "--shared=$_shared";
236 } else {
237 push @init_db, "--shared";
238 }
239 }
240 command_noisy(@init_db);
241 }
242 my $set;
243 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
244 foreach my $i (keys %icv) {
245 die "'$set' and '$i' cannot both be set\n" if $set;
246 next unless defined $icv{$i};
247 command_noisy('config', "$pfx.$i", $icv{$i});
248 $set = $i;
249 }
250}
251sub init_subdir {
253 my $repo_path = shift or return;
254 mkpath([$repo_path]) unless -d $repo_path;
255 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
256 $ENV{GIT_DIR} = $repo_path . "/.git";
257}
258sub cmd_clone {
260 my ($url, $path) = @_;
261 if (!defined $path &&
262 (defined $_trunk || defined $_branches || defined $_tags) &&
263 $url !~ m#^[a-z\+]+://#) {
264 $path = $url;
265 }
266 warn "--path: $path\n" if defined $path;
267 $path = basename($url) if !defined $path || !length $path;
268 warn "++path: $path\n" if defined $path;
269 mkpath([$path]);
270 chdir $path or die "Couldn't chdir to $path\n";
271 cmd_init(@_);
272 Git::SVN::fetch_all($Git::SVN::default_repo_id);
273}
274sub cmd_init {
276 if (defined $_trunk || defined $_branches || defined $_tags) {
277 return cmd_multi_init(@_);
278 }
279 my $url = shift or die "SVN repository location required ",
280 "as a command-line argument\n";
281 init_subdir(@_);
282 do_git_init_db();
283 Git::SVN->init($url);
285}
286sub cmd_fetch {
288 if (grep /^\d+=./, @_) {
289 die "'<rev>=<commit>' fetch arguments are ",
290 "no longer supported.\n";
291 }
292 my ($remote) = @_;
293 if (@_ > 1) {
294 die "Usage: $0 fetch [--all] [svn-remote]\n";
295 }
296 $remote ||= $Git::SVN::default_repo_id;
297 if ($_fetch_all) {
298 cmd_multi_fetch();
299 } else {
300 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
301 }
302}
303sub cmd_set_tree {
305 my (@commits) = @_;
306 if ($_stdin || !@commits) {
307 print "Reading from stdin...\n";
308 @commits = ();
309 while (<STDIN>) {
310 if (/\b($sha1_short)\b/o) {
311 unshift @commits, $1;
312 }
313 }
314 }
315 my @revs;
316 foreach my $c (@commits) {
317 my @tmp = command('rev-parse',$c);
318 if (scalar @tmp == 1) {
319 push @revs, $tmp[0];
320 } elsif (scalar @tmp > 1) {
321 push @revs, reverse(command('rev-list',@tmp));
322 } else {
323 fatal "Failed to rev-parse $c\n";
324 }
325 }
326 my $gs = Git::SVN->new;
327 my ($r_last, $cmt_last) = $gs->last_rev_commit;
328 $gs->fetch;
329 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
330 fatal "There are new revisions that were fetched ",
331 "and need to be merged (or acknowledged) ",
332 "before committing.\nlast rev: $r_last\n",
333 " current: $gs->{last_rev}\n";
334 }
335 $gs->set_tree($_) foreach @revs;
336 print "Done committing ",scalar @revs," revisions to SVN\n";
337}
338sub cmd_dcommit {
340 my $head = shift;
341 $head ||= 'HEAD';
342 my @refs;
343 my ($url, $rev, $uuid) = working_head_info($head, \@refs);
344 my $c = $refs[-1];
345 unless (defined $url && defined $rev && defined $uuid) {
346 die "Unable to determine upstream SVN information from ",
347 "$head history\n";
348 }
349 my $gs = Git::SVN->find_by_url($url);
350 my $last_rev;
351 foreach my $d (@refs) {
352 if (!verify_ref("$d~1")) {
353 fatal "Commit $d\n",
354 "has no parent commit, and therefore ",
355 "nothing to diff against.\n",
356 "You should be working from a repository ",
357 "originally created by git-svn\n";
358 }
359 unless (defined $last_rev) {
360 (undef, $last_rev, undef) = cmt_metadata("$d~1");
361 unless (defined $last_rev) {
362 fatal "Unable to extract revision information ",
363 "from commit $d~1\n";
364 }
365 }
366 if ($_dry_run) {
367 print "diff-tree $d~1 $d\n";
368 } else {
369 my %ed_opts = ( r => $last_rev,
370 log => get_commit_entry($d)->{log},
371 ra => Git::SVN::Ra->new($url),
372 tree_a => "$d~1",
373 tree_b => $d,
374 editor_cb => sub {
375 print "Committed r$_[0]\n";
376 $last_rev = $_[0]; },
377 svn_path => '');
378 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
379 print "No changes\n$d~1 == $d\n";
380 }
381 }
382 }
383 return if $_dry_run;
384 unless ($gs) {
385 warn "Could not determine fetch information for $url\n",
386 "Will not attempt to fetch and rebase commits.\n",
387 "This probably means you have useSvmProps and should\n",
388 "now resync your SVN::Mirror repository.\n";
389 return;
390 }
391 $_fetch_all ? $gs->fetch_all : $gs->fetch;
392 # we always want to rebase against the current HEAD, not any
393 # head that was passed to us
394 my @diff = command('diff-tree', 'HEAD', $gs->refname, '--');
395 my @finish;
396 if (@diff) {
397 @finish = rebase_cmd();
398 print STDERR "W: HEAD and ", $gs->refname, " differ, ",
399 "using @finish:\n", "@diff";
400 } else {
401 print "No changes between current HEAD and ",
402 $gs->refname, "\nResetting to the latest ",
403 $gs->refname, "\n";
404 @finish = qw/reset --mixed/;
405 }
406 command_noisy(@finish, $gs->refname);
407}
408sub cmd_rebase {
410 command_noisy(qw/update-index --refresh/);
411 my $url = (working_head_info('HEAD'))[0];
412 if (!defined $url) {
413 die "Unable to determine upstream SVN information from ",
414 "working tree history\n";
415 }
416 my $gs = Git::SVN->find_by_url($url);
418 if (command(qw/diff-index HEAD --/)) {
419 print STDERR "Cannot rebase with uncommited changes:\n";
420 command_noisy('status');
421 exit 1;
422 }
423 $_fetch_all ? $gs->fetch_all : $gs->fetch;
424 command_noisy(rebase_cmd(), $gs->refname);
425}
426sub cmd_show_ignore {
428 my $url = (::working_head_info('HEAD'))[0];
429 my $gs = Git::SVN->find_by_url($url) || Git::SVN->new;
430 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
431 $gs->traverse_ignore(\*STDOUT, '', $r);
432}
433sub cmd_multi_init {
435 my $url = shift;
436 unless (defined $_trunk || defined $_branches || defined $_tags) {
437 usage(1);
438 }
439 do_git_init_db();
440 $_prefix = '' unless defined $_prefix;
441 if (defined $url) {
442 $url =~ s#/+$##;
443 init_subdir(@_);
444 }
445 if (defined $_trunk) {
446 my $trunk_ref = $_prefix . 'trunk';
447 # try both old-style and new-style lookups:
448 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
449 unless ($gs_trunk) {
450 my ($trunk_url, $trunk_path) =
451 complete_svn_url($url, $_trunk);
452 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
453 undef, $trunk_ref);
454 }
455 }
456 return unless defined $_branches || defined $_tags;
457 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
458 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
459 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
460}
461sub cmd_multi_fetch {
463 my $remotes = Git::SVN::read_all_remotes();
464 foreach my $repo_id (sort keys %$remotes) {
465 if ($remotes->{$repo_id}->{url}) {
466 Git::SVN::fetch_all($repo_id, $remotes);
467 }
468 }
469}
470# this command is special because it requires no metadata
472sub cmd_commit_diff {
473 my ($ta, $tb, $url) = @_;
474 my $usage = "Usage: $0 commit-diff -r<revision> ".
475 "<tree-ish> <tree-ish> [<URL>]\n";
476 fatal($usage) if (!defined $ta || !defined $tb);
477 my $svn_path;
478 if (!defined $url) {
479 my $gs = eval { Git::SVN->new };
480 if (!$gs) {
481 fatal("Needed URL or usable git-svn --id in ",
482 "the command-line\n", $usage);
483 }
484 $url = $gs->{url};
485 $svn_path = $gs->{path};
486 }
487 unless (defined $_revision) {
488 fatal("-r|--revision is a required argument\n", $usage);
489 }
490 if (defined $_message && defined $_file) {
491 fatal("Both --message/-m and --file/-F specified ",
492 "for the commit message.\n",
493 "I have no idea what you mean\n");
494 }
495 if (defined $_file) {
496 $_message = file_to_s($_file);
497 } else {
498 $_message ||= get_commit_entry($tb)->{log};
499 }
500 my $ra ||= Git::SVN::Ra->new($url);
501 $svn_path ||= $ra->{svn_path};
502 my $r = $_revision;
503 if ($r eq 'HEAD') {
504 $r = $ra->get_latest_revnum;
505 } elsif ($r !~ /^\d+$/) {
506 die "revision argument: $r not understood by git-svn\n";
507 }
508 my %ed_opts = ( r => $r,
509 log => $_message,
510 ra => $ra,
511 tree_a => $ta,
512 tree_b => $tb,
513 editor_cb => sub { print "Committed r$_[0]\n" },
514 svn_path => $svn_path );
515 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
516 print "No changes\n$ta == $tb\n";
517 }
518}
519########################### utility functions #########################
521sub rebase_cmd {
523 my @cmd = qw/rebase/;
524 push @cmd, '-v' if $_verbose;
525 push @cmd, qw/--merge/ if $_merge;
526 push @cmd, "--strategy=$_strategy" if $_strategy;
527 @cmd;
528}
529sub post_fetch_checkout {
531 return if $_no_checkout;
532 my $gs = $Git::SVN::_head or return;
533 return if verify_ref('refs/heads/master^0');
534 my $valid_head = verify_ref('HEAD^0');
536 command_noisy(qw(update-ref refs/heads/master), $gs->refname);
537 return if ($valid_head || !verify_ref('HEAD^0'));
538 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
540 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
541 return if -f $index;
542 chomp(my $bare = `git config --bool --get core.bare`);
544 return if $bare eq 'true';
545 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
546 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
547 print STDERR "Checked out HEAD:\n ",
548 $gs->full_url, " r", $gs->last_rev, "\n";
549}
550sub complete_svn_url {
552 my ($url, $path) = @_;
553 $path =~ s#/+$##;
554 if ($path !~ m#^[a-z\+]+://#) {
555 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
556 fatal("E: '$path' is not a complete URL ",
557 "and a separate URL is not specified\n");
558 }
559 return ($url, $path);
560 }
561 return ($path, '');
562}
563sub complete_url_ls_init {
565 my ($ra, $repo_path, $switch, $pfx) = @_;
566 unless ($repo_path) {
567 print STDERR "W: $switch not specified\n";
568 return;
569 }
570 $repo_path =~ s#/+$##;
571 if ($repo_path =~ m#^[a-z\+]+://#) {
572 $ra = Git::SVN::Ra->new($repo_path);
573 $repo_path = '';
574 } else {
575 $repo_path =~ s#^/+##;
576 unless ($ra) {
577 fatal("E: '$repo_path' is not a complete URL ",
578 "and a separate URL is not specified\n");
579 }
580 }
581 my $url = $ra->{url};
582 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
583 my $k = "svn-remote.$gs->{repo_id}.url";
584 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
585 if ($orig_url && ($orig_url ne $gs->{url})) {
586 die "$k already set: $orig_url\n",
587 "wanted to set to: $gs->{url}\n";
588 }
589 command_oneline('config', $k, $gs->{url}) unless $orig_url;
590 my $remote_path = "$ra->{svn_path}/$repo_path/*";
591 $remote_path =~ s#/+#/#g;
592 $remote_path =~ s#^/##g;
593 my ($n) = ($switch =~ /^--(\w+)/);
594 if (length $pfx && $pfx !~ m#/$#) {
595 die "--prefix='$pfx' must have a trailing slash '/'\n";
596 }
597 command_noisy('config', "svn-remote.$gs->{repo_id}.$n",
598 "$remote_path:refs/remotes/$pfx*");
599}
600sub verify_ref {
602 my ($ref) = @_;
603 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
604 { STDERR => 0 }); };
605}
606sub get_tree_from_treeish {
608 my ($treeish) = @_;
609 # $treeish can be a symbolic ref, too:
610 my $type = command_oneline(qw/cat-file -t/, $treeish);
611 my $expected;
612 while ($type eq 'tag') {
613 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
614 }
615 if ($type eq 'commit') {
616 $expected = (grep /^tree /, command(qw/cat-file commit/,
617 $treeish))[0];
618 ($expected) = ($expected =~ /^tree ($sha1)$/o);
619 die "Unable to get tree from $treeish\n" unless $expected;
620 } elsif ($type eq 'tree') {
621 $expected = $treeish;
622 } else {
623 die "$treeish is a $type, expected tree, tag or commit\n";
624 }
625 return $expected;
626}
627sub get_commit_entry {
629 my ($treeish) = shift;
630 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
631 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
632 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
633 open my $log_fh, '>', $commit_editmsg or croak $!;
634 my $type = command_oneline(qw/cat-file -t/, $treeish);
636 if ($type eq 'commit' || $type eq 'tag') {
637 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
638 $type, $treeish);
639 my $in_msg = 0;
640 while (<$msg_fh>) {
641 if (!$in_msg) {
642 $in_msg = 1 if (/^\s*$/);
643 } elsif (/^git-svn-id: /) {
644 # skip this for now, we regenerate the
645 # correct one on re-fetch anyways
646 # TODO: set *:merge properties or like...
647 } else {
648 print $log_fh $_ or croak $!;
649 }
650 }
651 command_close_pipe($msg_fh, $ctx);
652 }
653 close $log_fh or croak $!;
654 if ($_edit || ($type eq 'tree')) {
656 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
657 # TODO: strip out spaces, comments, like git-commit.sh
658 system($editor, $commit_editmsg);
659 }
660 rename $commit_editmsg, $commit_msg or croak $!;
661 open $log_fh, '<', $commit_msg or croak $!;
662 { local $/; chomp($log_entry{log} = <$log_fh>); }
663 close $log_fh or croak $!;
664 unlink $commit_msg;
665 \%log_entry;
666}
667sub s_to_file {
669 my ($str, $file, $mode) = @_;
670 open my $fd,'>',$file or croak $!;
671 print $fd $str,"\n" or croak $!;
672 close $fd or croak $!;
673 chmod ($mode &~ umask, $file) if (defined $mode);
674}
675sub file_to_s {
677 my $file = shift;
678 open my $fd,'<',$file or croak "$!: file: $file\n";
679 local $/;
680 my $ret = <$fd>;
681 close $fd or croak $!;
682 $ret =~ s/\s*$//s;
683 return $ret;
684}
685# '<svn username> = real-name <email address>' mapping based on git-svnimport:
687sub load_authors {
688 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
689 my $log = $cmd eq 'log';
690 while (<$authors>) {
691 chomp;
692 next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
693 my ($user, $name, $email) = ($1, $2, $3);
694 if ($log) {
695 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
696 } else {
697 $users{$user} = [$name, $email];
698 }
699 }
700 close $authors or croak $!;
701}
702# convert GetOpt::Long specs for use by git-config
704sub read_repo_config {
705 return unless -d $ENV{GIT_DIR};
706 my $opts = shift;
707 my @config_only;
708 foreach my $o (keys %$opts) {
709 # if we have mixedCase and a long option-only, then
710 # it's a config-only variable that we don't need for
711 # the command-line.
712 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
713 my $v = $opts->{$o};
714 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
715 $key =~ s/-//g;
716 my $arg = 'git-config';
717 $arg .= ' --int' if ($o =~ /[:=]i$/);
718 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
719 if (ref $v eq 'ARRAY') {
720 chomp(my @tmp = `$arg --get-all svn.$key`);
721 @$v = @tmp if @tmp;
722 } else {
723 chomp(my $tmp = `$arg --get svn.$key`);
724 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
725 $$v = $tmp;
726 }
727 }
728 }
729 delete @$opts{@config_only} if @config_only;
730}
731sub extract_metadata {
733 my $id = shift or return (undef, undef, undef);
734 my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
735 \s([a-f\d\-]+)$/x);
736 if (!defined $rev || !$uuid || !$url) {
737 # some of the original repositories I made had
738 # identifiers like this:
739 ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
740 }
741 return ($url, $rev, $uuid);
742}
743sub cmt_metadata {
745 return extract_metadata((grep(/^git-svn-id: /,
746 command(qw/cat-file commit/, shift)))[-1]);
747}
748sub working_head_info {
750 my ($head, $refs) = @_;
751 my ($url, $rev, $uuid);
752 my ($fh, $ctx) = command_output_pipe('rev-list', $head);
753 while (<$fh>) {
754 chomp;
755 ($url, $rev, $uuid) = cmt_metadata($_);
756 last if (defined $url && defined $rev && defined $uuid);
757 unshift @$refs, $_ if $refs;
758 }
759 close $fh; # break the pipe
760 ($url, $rev, $uuid);
761}
762package Git::SVN;
764use strict;
765use warnings;
766use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
767 $_repack $_repack_flags $_use_svm_props $_head
768 $_use_svnsync_props $no_reuse_existing/;
769use Carp qw/croak/;
770use File::Path qw/mkpath/;
771use File::Copy qw/copy/;
772use IPC::Open3;
773my $_repack_nr;
775# properties that we do not log:
776my %SKIP_PROP;
777BEGIN {
778 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
779 svn:special svn:executable
780 svn:entry:committed-rev
781 svn:entry:last-author
782 svn:entry:uuid
783 svn:entry:committed-date/;
784 # some options are read globally, but can be overridden locally
786 # per [svn-remote "..."] section. Command-line options will *NOT*
787 # override options set in an [svn-remote "..."] section
788 my $e;
789 foreach (qw/follow_parent no_metadata use_svm_props
790 use_svnsync_props/) {
791 my $key = $_;
792 $key =~ tr/_//d;
793 $e .= "sub $_ {
794 my (\$self) = \@_;
795 return \$self->{-$_} if exists \$self->{-$_};
796 my \$k = \"svn-remote.\$self->{repo_id}\.$key\";
797 eval { command_oneline(qw/config --get/, \$k) };
798 if (\$@) {
799 \$self->{-$_} = \$Git::SVN::_$_;
800 } else {
801 my \$v = command_oneline(qw/config --bool/,\$k);
802 \$self->{-$_} = \$v eq 'false' ? 0 : 1;
803 }
804 return \$self->{-$_} }\n";
805 }
806 $e .= "1;\n";
807 eval $e or die $@;
808}
809my %LOCKFILES;
811END { unlink keys %LOCKFILES if %LOCKFILES }
812sub resolve_local_globs {
814 my ($url, $fetch, $glob_spec) = @_;
815 return unless defined $glob_spec;
816 my $ref = $glob_spec->{ref};
817 my $path = $glob_spec->{path};
818 foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
819 next unless m#^refs/remotes/$ref->{regex}$#;
820 my $p = $1;
821 my $pathname = $path->full_path($p);
822 my $refname = $ref->full_path($p);
823 if (my $existing = $fetch->{$pathname}) {
824 if ($existing ne $refname) {
825 die "Refspec conflict:\n",
826 "existing: refs/remotes/$existing\n",
827 " globbed: refs/remotes/$refname\n";
828 }
829 my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
830 $u =~ s!^\Q$url\E(/|$)!! or die
831 "refs/remotes/$refname: '$url' not found in '$u'\n";
832 if ($pathname ne $u) {
833 warn "W: Refspec glob conflict ",
834 "(ref: refs/remotes/$refname):\n",
835 "expected path: $pathname\n",
836 " real path: $u\n",
837 "Continuing ahead with $u\n";
838 next;
839 }
840 } else {
841 $fetch->{$pathname} = $refname;
842 }
843 }
844}
845sub parse_revision_argument {
847 my ($base, $head) = @_;
848 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
849 return ($base, $head);
850 }
851 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
852 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
853 return ($head, $head) if ($::_revision eq 'HEAD');
854 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
855 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
856 die "revision argument: $::_revision not understood by git-svn\n";
857}
858sub fetch_all {
860 my ($repo_id, $remotes) = @_;
861 if (ref $repo_id) {
862 my $gs = $repo_id;
863 $repo_id = undef;
864 $repo_id = $gs->{repo_id};
865 }
866 $remotes ||= read_all_remotes();
867 my $remote = $remotes->{$repo_id} or
868 die "[svn-remote \"$repo_id\"] unknown\n";
869 my $fetch = $remote->{fetch};
870 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
871 my (@gs, @globs);
872 my $ra = Git::SVN::Ra->new($url);
873 my $uuid = $ra->get_uuid;
874 my $head = $ra->get_latest_revnum;
875 my $base = defined $fetch ? $head : 0;
876 # read the max revs for wildcard expansion (branches/*, tags/*)
878 foreach my $t (qw/branches tags/) {
879 defined $remote->{$t} or next;
880 push @globs, $remote->{$t};
881 my $max_rev = eval { tmp_config(qw/--int --get/,
882 "svn-remote.$repo_id.${t}-maxRev") };
883 if (defined $max_rev && ($max_rev < $base)) {
884 $base = $max_rev;
885 } elsif (!defined $max_rev) {
886 $base = 0;
887 }
888 }
889 if ($fetch) {
891 foreach my $p (sort keys %$fetch) {
892 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
893 my $lr = $gs->rev_db_max;
894 if (defined $lr) {
895 $base = $lr if ($lr < $base);
896 }
897 push @gs, $gs;
898 }
899 }
900 ($base, $head) = parse_revision_argument($base, $head);
902 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
903}
904sub read_all_remotes {
906 my $r = {};
907 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
908 if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
909 $r->{$1}->{fetch}->{$2} = $3;
910 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
911 $r->{$1}->{url} = $2;
912 } elsif (m!^(.+)\.(branches|tags)=
913 (.*):refs/remotes/(.+)\s*$/!x) {
914 my ($p, $g) = ($3, $4);
915 my $rs = $r->{$1}->{$2} = {
916 t => $2,
917 remote => $1,
918 path => Git::SVN::GlobSpec->new($p),
919 ref => Git::SVN::GlobSpec->new($g) };
920 if (length($rs->{ref}->{right}) != 0) {
921 die "The '*' glob character must be the last ",
922 "character of '$g'\n";
923 }
924 }
925 }
926 $r;
927}
928sub init_vars {
930 if (defined $_repack) {
931 $_repack = 1000 if ($_repack <= 0);
932 $_repack_nr = $_repack;
933 $_repack_flags ||= '-d';
934 }
935}
936sub verify_remotes_sanity {
938 return unless -d $ENV{GIT_DIR};
939 my %seen;
940 foreach (command(qw/config -l/)) {
941 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
942 if ($seen{$1}) {
943 die "Remote ref refs/remote/$1 is tracked by",
944 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
945 "Please resolve this ambiguity in ",
946 "your git configuration file before ",
947 "continuing\n";
948 }
949 $seen{$1} = $_;
950 }
951 }
952}
953# we allow more chars than remotes2config.sh...
955sub sanitize_remote_name {
956 my ($name) = @_;
957 $name =~ tr{A-Za-z0-9:,/+-}{.}c;
958 $name;
959}
960sub find_existing_remote {
962 my ($url, $remotes) = @_;
963 return undef if $no_reuse_existing;
964 my $existing;
965 foreach my $repo_id (keys %$remotes) {
966 my $u = $remotes->{$repo_id}->{url} or next;
967 next if $u ne $url;
968 $existing = $repo_id;
969 last;
970 }
971 $existing;
972}
973sub init_remote_config {
975 my ($self, $url, $no_write) = @_;
976 $url =~ s!/+$!!; # strip trailing slash
977 my $r = read_all_remotes();
978 my $existing = find_existing_remote($url, $r);
979 if ($existing) {
980 unless ($no_write) {
981 print STDERR "Using existing ",
982 "[svn-remote \"$existing\"]\n";
983 }
984 $self->{repo_id} = $existing;
985 } else {
986 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
987 $existing = find_existing_remote($min_url, $r);
988 if ($existing) {
989 unless ($no_write) {
990 print STDERR "Using existing ",
991 "[svn-remote \"$existing\"]\n";
992 }
993 $self->{repo_id} = $existing;
994 }
995 if ($min_url ne $url) {
996 unless ($no_write) {
997 print STDERR "Using higher level of URL: ",
998 "$url => $min_url\n";
999 }
1000 my $old_path = $self->{path};
1001 $self->{path} = $url;
1002 $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
1003 if (length $old_path) {
1004 $self->{path} .= "/$old_path";
1005 }
1006 $url = $min_url;
1007 }
1008 }
1009 my $orig_url;
1010 if (!$existing) {
1011 # verify that we aren't overwriting anything:
1012 $orig_url = eval {
1013 command_oneline('config', '--get',
1014 "svn-remote.$self->{repo_id}.url")
1015 };
1016 if ($orig_url && ($orig_url ne $url)) {
1017 die "svn-remote.$self->{repo_id}.url already set: ",
1018 "$orig_url\nwanted to set to: $url\n";
1019 }
1020 }
1021 my ($xrepo_id, $xpath) = find_ref($self->refname);
1022 if (defined $xpath) {
1023 die "svn-remote.$xrepo_id.fetch already set to track ",
1024 "$xpath:refs/remotes/", $self->refname, "\n";
1025 }
1026 unless ($no_write) {
1027 command_noisy('config',
1028 "svn-remote.$self->{repo_id}.url", $url);
1029 command_noisy('config', '--add',
1030 "svn-remote.$self->{repo_id}.fetch",
1031 "$self->{path}:".$self->refname);
1032 }
1033 $self->{url} = $url;
1034}
1035sub find_by_url { # repos_root and, path are optional
1037 my ($class, $full_url, $repos_root, $path) = @_;
1038 return undef unless defined $full_url;
1039 my $remotes = read_all_remotes();
1040 if (defined $full_url && defined $repos_root && !defined $path) {
1041 $path = $full_url;
1042 $path =~ s#^\Q$repos_root\E(?:/|$)##;
1043 }
1044 foreach my $repo_id (keys %$remotes) {
1045 my $u = $remotes->{$repo_id}->{url} or next;
1046 next if defined $repos_root && $repos_root ne $u;
1047 my $fetch = $remotes->{$repo_id}->{fetch} || {};
1049 foreach (qw/branches tags/) {
1050 resolve_local_globs($u, $fetch,
1051 $remotes->{$repo_id}->{$_});
1052 }
1053 my $p = $path;
1054 unless (defined $p) {
1055 $p = $full_url;
1056 $p =~ s#^\Q$u\E(?:/|$)## or next;
1057 }
1058 foreach my $f (keys %$fetch) {
1059 next if $f ne $p;
1060 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
1061 }
1062 }
1063 undef;
1064}
1065sub init {
1067 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
1068 my $self = _new($class, $repo_id, $ref_id, $path);
1069 if (defined $url) {
1070 $self->init_remote_config($url, $no_write);
1071 }
1072 $self;
1073}
1074sub find_ref {
1076 my ($ref_id) = @_;
1077 foreach (command(qw/config -l/)) {
1078 next unless m!^svn-remote\.(.+)\.fetch=
1079 \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
1080 my ($repo_id, $path, $ref) = ($1, $2, $3);
1081 if ($ref eq $ref_id) {
1082 $path = '' if ($path =~ m#^\./?#);
1083 return ($repo_id, $path);
1084 }
1085 }
1086 (undef, undef, undef);
1087}
1088sub new {
1090 my ($class, $ref_id, $repo_id, $path) = @_;
1091 if (defined $ref_id && !defined $repo_id && !defined $path) {
1092 ($repo_id, $path) = find_ref($ref_id);
1093 if (!defined $repo_id) {
1094 die "Could not find a \"svn-remote.*.fetch\" key ",
1095 "in the repository configuration matching: ",
1096 "refs/remotes/$ref_id\n";
1097 }
1098 }
1099 my $self = _new($class, $repo_id, $ref_id, $path);
1100 if (!defined $self->{path} || !length $self->{path}) {
1101 my $fetch = command_oneline('config', '--get',
1102 "svn-remote.$repo_id.fetch",
1103 ":refs/remotes/$ref_id\$") or
1104 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
1105 "\":refs/remotes/$ref_id\$\" in config\n";
1106 ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
1107 }
1108 $self->{url} = command_oneline('config', '--get',
1109 "svn-remote.$repo_id.url") or
1110 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
1111 $self->rebuild;
1112 $self;
1113}
1114sub refname { "refs/remotes/$_[0]->{ref_id}" }
1116sub svm_uuid {
1118 my ($self) = @_;
1119 return $self->{svm}->{uuid} if $self->svm;
1120 $self->ra;
1121 unless ($self->{svm}) {
1122 die "SVM UUID not cached, and reading remotely failed\n";
1123 }
1124 $self->{svm}->{uuid};
1125}
1126sub svm {
1128 my ($self) = @_;
1129 return $self->{svm} if $self->{svm};
1130 my $svm;
1131 # see if we have it in our config, first:
1132 eval {
1133 my $section = "svn-remote.$self->{repo_id}";
1134 $svm = {
1135 source => tmp_config('--get', "$section.svm-source"),
1136 uuid => tmp_config('--get', "$section.svm-uuid"),
1137 replace => tmp_config('--get', "$section.svm-replace"),
1138 }
1139 };
1140 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
1141 $self->{svm} = $svm;
1142 }
1143 $self->{svm};
1144}
1145sub _set_svm_vars {
1147 my ($self, $ra) = @_;
1148 return $ra if $self->svm;
1149 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
1151 "(svm:source, svm:uuid) ",
1152 "from the following URLs:\n" );
1153 sub read_svm_props {
1154 my ($self, $ra, $path, $r) = @_;
1155 my $props = ($ra->get_dir($path, $r))[2];
1156 my $src = $props->{'svm:source'};
1157 my $uuid = $props->{'svm:uuid'};
1158 return undef if (!$src || !$uuid);
1159 chomp($src, $uuid);
1161 $uuid =~ m{^[0-9a-f\-]{30,}$}
1163 or die "doesn't look right - svm:uuid is '$uuid'\n";
1164 # the '!' is used to mark the repos_root!/relative/path
1166 $src =~ s{/?!/?}{/};
1167 $src =~ s{/+$}{}; # no trailing slashes please
1168 # username is of no interest
1169 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
1170 my $replace = $ra->{url};
1172 $replace .= "/$path" if length $path;
1173 my $section = "svn-remote.$self->{repo_id}";
1175 tmp_config("$section.svm-source", $src);
1176 tmp_config("$section.svm-replace", $replace);
1177 tmp_config("$section.svm-uuid", $uuid);
1178 $self->{svm} = {
1179 source => $src,
1180 uuid => $uuid,
1181 replace => $replace
1182 };
1183 }
1184 my $r = $ra->get_latest_revnum;
1186 my $path = $self->{path};
1187 my %tried;
1188 while (length $path) {
1189 unless ($tried{"$self->{url}/$path"}) {
1190 return $ra if $self->read_svm_props($ra, $path, $r);
1191 $tried{"$self->{url}/$path"} = 1;
1192 }
1193 $path =~ s#/?[^/]+$##;
1194 }
1195 die "Path: '$path' should be ''\n" if $path ne '';
1196 return $ra if $self->read_svm_props($ra, $path, $r);
1197 $tried{"$self->{url}/$path"} = 1;
1198 if ($ra->{repos_root} eq $self->{url}) {
1200 die @err, (map { " $_\n" } keys %tried), "\n";
1201 }
1202 # nope, make sure we're connected to the repository root:
1204 my $ok;
1205 my @tried_b;
1206 $path = $ra->{svn_path};
1207 $ra = Git::SVN::Ra->new($ra->{repos_root});
1208 while (length $path) {
1209 unless ($tried{"$ra->{url}/$path"}) {
1210 $ok = $self->read_svm_props($ra, $path, $r);
1211 last if $ok;
1212 $tried{"$ra->{url}/$path"} = 1;
1213 }
1214 $path =~ s#/?[^/]+$##;
1215 }
1216 die "Path: '$path' should be ''\n" if $path ne '';
1217 $ok ||= $self->read_svm_props($ra, $path, $r);
1218 $tried{"$ra->{url}/$path"} = 1;
1219 if (!$ok) {
1220 die @err, (map { " $_\n" } keys %tried), "\n";
1221 }
1222 Git::SVN::Ra->new($self->{url});
1223}
1224sub svnsync {
1226 my ($self) = @_;
1227 return $self->{svnsync} if $self->{svnsync};
1228 if ($self->no_metadata) {
1230 die "Can't have both 'noMetadata' and ",
1231 "'useSvnsyncProps' options set!\n";
1232 }
1233 if ($self->rewrite_root) {
1234 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
1235 "options set!\n";
1236 }
1237 my $svnsync;
1239 # see if we have it in our config, first:
1240 eval {
1241 my $section = "svn-remote.$self->{repo_id}";
1242 $svnsync = {
1243 url => tmp_config('--get', "$section.svnsync-url"),
1244 uuid => tmp_config('--get', "$section.svnsync-uuid"),
1245 }
1246 };
1247 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
1248 return $self->{svnsync} = $svnsync;
1249 }
1250 my $err = "useSvnsyncProps set, but failed to read " .
1252 "svnsync property: svn:sync-from-";
1253 my $rp = $self->ra->rev_proplist(0);
1254 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
1256 $url =~ m{^[a-z\+]+://} or
1257 die "doesn't look right - svn:sync-from-url is '$url'\n";
1258 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
1260 $uuid =~ m{^[0-9a-f\-]{30,}$} or
1261 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
1262 my $section = "svn-remote.$self->{repo_id}";
1264 tmp_config('--add', "$section.svnsync-uuid", $uuid);
1265 tmp_config('--add', "$section.svnsync-url", $url);
1266 return $self->{svnsync} = { url => $url, uuid => $uuid };
1267}
1268# this allows us to memoize our SVN::Ra UUID locally and avoid a
1270# remote lookup (useful for 'git svn log').
1271sub ra_uuid {
1272 my ($self) = @_;
1273 unless ($self->{ra_uuid}) {
1274 my $key = "svn-remote.$self->{repo_id}.uuid";
1275 my $uuid = eval { tmp_config('--get', $key) };
1276 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
1277 $self->{ra_uuid} = $uuid;
1278 } else {
1279 die "ra_uuid called without URL\n" unless $self->{url};
1280 $self->{ra_uuid} = $self->ra->get_uuid;
1281 tmp_config('--add', $key, $self->{ra_uuid});
1282 }
1283 }
1284 $self->{ra_uuid};
1285}
1286sub ra {
1288 my ($self) = shift;
1289 my $ra = Git::SVN::Ra->new($self->{url});
1290 if ($self->use_svm_props && !$self->{svm}) {
1291 if ($self->no_metadata) {
1292 die "Can't have both 'noMetadata' and ",
1293 "'useSvmProps' options set!\n";
1294 } elsif ($self->use_svnsync_props) {
1295 die "Can't have both 'useSvnsyncProps' and ",
1296 "'useSvmProps' options set!\n";
1297 }
1298 $ra = $self->_set_svm_vars($ra);
1299 $self->{-want_revprops} = 1;
1300 }
1301 $ra;
1302}
1303sub rel_path {
1305 my ($self) = @_;
1306 my $repos_root = $self->ra->{repos_root};
1307 return $self->{path} if ($self->{url} eq $repos_root);
1308 die "BUG: rel_path failed! repos_root: $repos_root, Ra URL: ",
1309 $self->ra->{url}, " path: $self->{path}, URL: $self->{url}\n";
1310}
1311sub traverse_ignore {
1313 my ($self, $fh, $path, $r) = @_;
1314 $path =~ s#^/+##g;
1315 my $ra = $self->ra;
1316 my ($dirent, undef, $props) = $ra->get_dir($path, $r);
1317 my $p = $path;
1318 $p =~ s#^\Q$ra->{svn_path}\E/##;
1319 print $fh length $p ? "\n# $p\n" : "\n# /\n";
1320 if (my $s = $props->{'svn:ignore'}) {
1321 $s =~ s/[\r\n]+/\n/g;
1322 chomp $s;
1323 if (length $p == 0) {
1324 $s =~ s#\n#\n/$p#g;
1325 print $fh "/$s\n";
1326 } else {
1327 $s =~ s#\n#\n/$p/#g;
1328 print $fh "/$p/$s\n";
1329 }
1330 }
1331 foreach (sort keys %$dirent) {
1332 next if $dirent->{$_}->kind != $SVN::Node::dir;
1333 $self->traverse_ignore($fh, "$path/$_", $r);
1334 }
1335}
1336sub last_rev { ($_[0]->last_rev_commit)[0] }
1338sub last_commit { ($_[0]->last_rev_commit)[1] }
1339# returns the newest SVN revision number and newest commit SHA1
1341sub last_rev_commit {
1342 my ($self) = @_;
1343 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1344 return ($self->{last_rev}, $self->{last_commit});
1345 }
1346 my $c = ::verify_ref($self->refname.'^0');
1347 if ($c && !$self->use_svm_props && !$self->no_metadata) {
1348 my $rev = (::cmt_metadata($c))[1];
1349 if (defined $rev) {
1350 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1351 return ($rev, $c);
1352 }
1353 }
1354 my $db_path = $self->db_path;
1355 unless (-e $db_path) {
1356 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
1357 return (undef, undef);
1358 }
1359 my $offset = -41; # from tail
1360 my $rl;
1361 open my $fh, '<', $db_path or croak "$db_path not readable: $!\n";
1362 sysseek($fh, $offset, 2); # don't care for errors
1363 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1364 chomp $rl;
1365 while (('0' x40) eq $rl && sysseek($fh, 0, 1) != 0) {
1366 $offset -= 41;
1367 sysseek($fh, $offset, 2); # don't care for errors
1368 sysread($fh, $rl, 41) == 41 or return (undef, undef);
1369 chomp $rl;
1370 }
1371 if ($c && $c ne $rl) {
1372 die "$db_path and ", $self->refname,
1373 " inconsistent!:\n$c != $rl\n";
1374 }
1375 my $rev = sysseek($fh, 0, 1) or croak $!;
1376 $rev = ($rev - 41) / 41;
1377 close $fh or croak $!;
1378 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1379 return ($rev, $c);
1380}
1381sub get_fetch_range {
1383 my ($self, $min, $max) = @_;
1384 $max ||= $self->ra->get_latest_revnum;
1385 $min ||= $self->rev_db_max;
1386 (++$min, $max);
1387}
1388sub tmp_config {
1390 my (@args) = @_;
1391 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
1392 my $config = "$ENV{GIT_DIR}/svn/.metadata";
1393 if (-e $old_def_config && ! -e $config) {
1394 rename $old_def_config, $config or
1395 die "Failed rename $old_def_config => $config: $!\n";
1396 }
1397 my $old_config = $ENV{GIT_CONFIG};
1398 $ENV{GIT_CONFIG} = $config;
1399 $@ = undef;
1400 my @ret = eval {
1401 unless (-f $config) {
1402 mkfile($config);
1403 open my $fh, '>', $config or
1404 die "Can't open $config: $!\n";
1405 print $fh "; This file is used internally by ",
1406 "git-svn\n" or die
1407 "Couldn't write to $config: $!\n";
1408 print $fh "; You should not have to edit it\n" or
1409 die "Couldn't write to $config: $!\n";
1410 close $fh or die "Couldn't close $config: $!\n";
1411 }
1412 command('config', @args);
1413 };
1414 my $err = $@;
1415 if (defined $old_config) {
1416 $ENV{GIT_CONFIG} = $old_config;
1417 } else {
1418 delete $ENV{GIT_CONFIG};
1419 }
1420 die $err if $err;
1421 wantarray ? @ret : $ret[0];
1422}
1423sub tmp_index_do {
1425 my ($self, $sub) = @_;
1426 my $old_index = $ENV{GIT_INDEX_FILE};
1427 $ENV{GIT_INDEX_FILE} = $self->{index};
1428 $@ = undef;
1429 my @ret = eval {
1430 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
1431 mkpath([$dir]) unless -d $dir;
1432 &$sub;
1433 };
1434 my $err = $@;
1435 if (defined $old_index) {
1436 $ENV{GIT_INDEX_FILE} = $old_index;
1437 } else {
1438 delete $ENV{GIT_INDEX_FILE};
1439 }
1440 die $err if $err;
1441 wantarray ? @ret : $ret[0];
1442}
1443sub assert_index_clean {
1445 my ($self, $treeish) = @_;
1446 $self->tmp_index_do(sub {
1448 command_noisy('read-tree', $treeish) unless -e $self->{index};
1449 my $x = command_oneline('write-tree');
1450 my ($y) = (command(qw/cat-file commit/, $treeish) =~
1451 /^tree ($::sha1)/mo);
1452 return if $y eq $x;
1453 warn "Index mismatch: $y != $x\nrereading $treeish\n";
1455 unlink $self->{index} or die "unlink $self->{index}: $!\n";
1456 command_noisy('read-tree', $treeish);
1457 $x = command_oneline('write-tree');
1458 if ($y ne $x) {
1459 ::fatal "trees ($treeish) $y != $x\n",
1460 "Something is seriously wrong...\n";
1461 }
1462 });
1463}
1464sub get_commit_parents {
1466 my ($self, $log_entry) = @_;
1467 my (%seen, @ret, @tmp);
1468 # legacy support for 'set-tree'; this is only used by set_tree_cb:
1469 if (my $ip = $self->{inject_parents}) {
1470 if (my $commit = delete $ip->{$log_entry->{revision}}) {
1471 push @tmp, $commit;
1472 }
1473 }
1474 if (my $cur = ::verify_ref($self->refname.'^0')) {
1475 push @tmp, $cur;
1476 }
1477 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
1478 while (my $p = shift @tmp) {
1479 next if $seen{$p};
1480 $seen{$p} = 1;
1481 push @ret, $p;
1482 # MAXPARENT is defined to 16 in commit-tree.c:
1483 last if @ret >= 16;
1484 }
1485 if (@tmp) {
1486 die "r$log_entry->{revision}: No room for parents:\n\t",
1487 join("\n\t", @tmp), "\n";
1488 }
1489 @ret;
1490}
1491sub rewrite_root {
1493 my ($self) = @_;
1494 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
1495 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
1496 my $rwr = eval { command_oneline(qw/config --get/, $k) };
1497 if ($rwr) {
1498 $rwr =~ s#/+$##;
1499 if ($rwr !~ m#^[a-z\+]+://#) {
1500 die "$rwr is not a valid URL (key: $k)\n";
1501 }
1502 }
1503 $self->{-rewrite_root} = $rwr;
1504}
1505sub metadata_url {
1507 my ($self) = @_;
1508 ($self->rewrite_root || $self->{url}) .
1509 (length $self->{path} ? '/' . $self->{path} : '');
1510}
1511sub full_url {
1513 my ($self) = @_;
1514 $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
1515}
1516sub do_git_commit {
1518 my ($self, $log_entry) = @_;
1519 my $lr = $self->last_rev;
1520 if (defined $lr && $lr >= $log_entry->{revision}) {
1521 die "Last fetched revision of ", $self->refname,
1522 " was r$lr, but we are about to fetch: ",
1523 "r$log_entry->{revision}!\n";
1524 }
1525 if (my $c = $self->rev_db_get($log_entry->{revision})) {
1526 croak "$log_entry->{revision} = $c already exists! ",
1527 "Why are we refetching it?\n";
1528 }
1529 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $log_entry->{name};
1530 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} =
1531 $log_entry->{email};
1532 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
1533 my $tree = $log_entry->{tree};
1535 if (!defined $tree) {
1536 $tree = $self->tmp_index_do(sub {
1537 command_oneline('write-tree') });
1538 }
1539 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
1540 my @exec = ('git-commit-tree', $tree);
1542 foreach ($self->get_commit_parents($log_entry)) {
1543 push @exec, '-p', $_;
1544 }
1545 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1546 or croak $!;
1547 print $msg_fh $log_entry->{log} or croak $!;
1548 unless ($self->no_metadata) {
1549 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
1550 or croak $!;
1551 }
1552 $msg_fh->flush == 0 or croak $!;
1553 close $msg_fh or croak $!;
1554 chomp(my $commit = do { local $/; <$out_fh> });
1555 close $out_fh or croak $!;
1556 waitpid $pid, 0;
1557 croak $? if $?;
1558 if ($commit !~ /^$::sha1$/o) {
1559 die "Failed to commit, invalid sha1: $commit\n";
1560 }
1561 $self->rev_db_set($log_entry->{revision}, $commit, 1);
1563 $self->{last_rev} = $log_entry->{revision};
1565 $self->{last_commit} = $commit;
1566 print "r$log_entry->{revision}";
1567 if (defined $log_entry->{svm_revision}) {
1568 print " (\@$log_entry->{svm_revision})";
1569 $self->rev_db_set($log_entry->{svm_revision}, $commit,
1570 0, $self->svm_uuid);
1571 }
1572 print " = $commit ($self->{ref_id})\n";
1573 if (defined $_repack && (--$_repack_nr == 0)) {
1574 $_repack_nr = $_repack;
1575 # repack doesn't use any arguments with spaces in them, does it?
1576 print "Running git repack $_repack_flags ...\n";
1577 command_noisy('repack', split(/\s+/, $_repack_flags));
1578 print "Done repacking\n";
1579 }
1580 return $commit;
1581}
1582sub match_paths {
1584 my ($self, $paths, $r) = @_;
1585 return 1 if $self->{path} eq '';
1586 if (my $path = $paths->{"/$self->{path}"}) {
1587 return ($path->{action} eq 'D') ? 0 : 1;
1588 }
1589 $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
1590 if (grep /$self->{path_regex}/, keys %$paths) {
1591 return 1;
1592 }
1593 my $c = '';
1594 foreach (split m#/#, $self->{path}) {
1595 $c .= "/$_";
1596 next unless ($paths->{$c} &&
1597 ($paths->{$c}->{action} =~ /^[AR]$/));
1598 if ($self->ra->check_path($self->{path}, $r) ==
1599 $SVN::Node::dir) {
1600 return 1;
1601 }
1602 }
1603 return 0;
1604}
1605sub find_parent_branch {
1607 my ($self, $paths, $rev) = @_;
1608 return undef unless $self->follow_parent;
1609 unless (defined $paths) {
1610 my $err_handler = $SVN::Error::handler;
1611 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
1612 $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, sub {
1613 $paths =
1614 Git::SVN::Ra::dup_changed_paths($_[0]) });
1615 $SVN::Error::handler = $err_handler;
1616 }
1617 return undef unless defined $paths;
1618 # look for a parent from another branch:
1620 my @b_path_components = split m#/#, $self->rel_path;
1621 my @a_path_components;
1622 my $i;
1623 while (@b_path_components) {
1624 $i = $paths->{'/'.join('/', @b_path_components)};
1625 last if $i && defined $i->{copyfrom_path};
1626 unshift(@a_path_components, pop(@b_path_components));
1627 }
1628 return undef unless defined $i && defined $i->{copyfrom_path};
1629 my $branch_from = $i->{copyfrom_path};
1630 if (@a_path_components) {
1631 print STDERR "branch_from: $branch_from => ";
1632 $branch_from .= '/'.join('/', @a_path_components);
1633 print STDERR $branch_from, "\n";
1634 }
1635 my $r = $i->{copyfrom_rev};
1636 my $repos_root = $self->ra->{repos_root};
1637 my $url = $self->ra->{url};
1638 my $new_url = $repos_root . $branch_from;
1639 print STDERR "Found possible branch point: ",
1640 "$new_url => ", $self->full_url, ", $r\n";
1641 $branch_from =~ s#^/##;
1642 my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
1643 unless ($gs) {
1644 my $ref_id = $self->{ref_id};
1645 $ref_id =~ s/\@\d+$//;
1646 $ref_id .= "\@$r";
1647 # just grow a tail if we're not unique enough :x
1648 $ref_id .= '-' while find_ref($ref_id);
1649 print STDERR "Initializing parent: $ref_id\n";
1650 $gs = Git::SVN->init($new_url, '', $ref_id, $ref_id, 1);
1651 }
1652 my ($r0, $parent) = $gs->find_rev_before($r, 1);
1653 if (!defined $r0 || !defined $parent) {
1654 $gs->fetch(0, $r);
1655 ($r0, $parent) = $gs->last_rev_commit;
1656 }
1657 if (defined $r0 && defined $parent) {
1658 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
1659 $self->assert_index_clean($parent);
1660 my $ed;
1661 if ($self->ra->can_do_switch) {
1662 print STDERR "Following parent with do_switch\n";
1663 # do_switch works with svn/trunk >= r22312, but that
1664 # is not included with SVN 1.4.3 (the latest version
1665 # at the moment), so we can't rely on it
1666 $self->{last_commit} = $parent;
1667 $ed = SVN::Git::Fetcher->new($self);
1668 $gs->ra->gs_do_switch($r0, $rev, $gs,
1669 $self->full_url, $ed)
1670 or die "SVN connection failed somewhere...\n";
1671 } else {
1672 print STDERR "Following parent with do_update\n";
1673 $ed = SVN::Git::Fetcher->new($self);
1674 $self->ra->gs_do_update($rev, $rev, $self, $ed)
1675 or die "SVN connection failed somewhere...\n";
1676 }
1677 print STDERR "Successfully followed parent\n";
1678 return $self->make_log_entry($rev, [$parent], $ed);
1679 }
1680 return undef;
1681}
1682sub do_fetch {
1684 my ($self, $paths, $rev) = @_;
1685 my $ed;
1686 my ($last_rev, @parents);
1687 if (my $lc = $self->last_commit) {
1688 # we can have a branch that was deleted, then re-added
1689 # under the same name but copied from another path, in
1690 # which case we'll have multiple parents (we don't
1691 # want to break the original ref, nor lose copypath info):
1692 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1693 push @{$log_entry->{parents}}, $lc;
1694 return $log_entry;
1695 }
1696 $ed = SVN::Git::Fetcher->new($self);
1697 $last_rev = $self->{last_rev};
1698 $ed->{c} = $lc;
1699 @parents = ($lc);
1700 } else {
1701 $last_rev = $rev;
1702 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1703 return $log_entry;
1704 }
1705 $ed = SVN::Git::Fetcher->new($self);
1706 }
1707 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
1708 die "SVN connection failed somewhere...\n";
1709 }
1710 $self->make_log_entry($rev, \@parents, $ed);
1711}
1712sub get_untracked {
1714 my ($self, $ed) = @_;
1715 my @out;
1716 my $h = $ed->{empty};
1717 foreach (sort keys %$h) {
1718 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
1719 push @out, " $act: " . uri_encode($_);
1720 warn "W: $act: $_\n";
1721 }
1722 foreach my $t (qw/dir_prop file_prop/) {
1723 $h = $ed->{$t} or next;
1724 foreach my $path (sort keys %$h) {
1725 my $ppath = $path eq '' ? '.' : $path;
1726 foreach my $prop (sort keys %{$h->{$path}}) {
1727 next if $SKIP_PROP{$prop};
1728 my $v = $h->{$path}->{$prop};
1729 my $t_ppath_prop = "$t: " .
1730 uri_encode($ppath) . ' ' .
1731 uri_encode($prop);
1732 if (defined $v) {
1733 push @out, " +$t_ppath_prop " .
1734 uri_encode($v);
1735 } else {
1736 push @out, " -$t_ppath_prop";
1737 }
1738 }
1739 }
1740 }
1741 foreach my $t (qw/absent_file absent_directory/) {
1742 $h = $ed->{$t} or next;
1743 foreach my $parent (sort keys %$h) {
1744 foreach my $path (sort @{$h->{$parent}}) {
1745 push @out, " $t: " .
1746 uri_encode("$parent/$path");
1747 warn "W: $t: $parent/$path ",
1748 "Insufficient permissions?\n";
1749 }
1750 }
1751 }
1752 \@out;
1753}
1754sub parse_svn_date {
1756 my $date = shift || return '+0000 1970-01-01 00:00:00';
1757 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
1758 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) or
1759 croak "Unable to parse date: $date\n";
1760 "+0000 $Y-$m-$d $H:$M:$S";
1761}
1762sub check_author {
1764 my ($author) = @_;
1765 if (!defined $author || length $author == 0) {
1766 $author = '(no author)';
1767 }
1768 if (defined $::_authors && ! defined $::users{$author}) {
1769 die "Author: $author not defined in $::_authors file\n";
1770 }
1771 $author;
1772}
1773sub make_log_entry {
1775 my ($self, $rev, $parents, $ed) = @_;
1776 my $untracked = $self->get_untracked($ed);
1777 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
1779 print $un "r$rev\n" or croak $!;
1780 print $un $_, "\n" foreach @$untracked;
1781 my %log_entry = ( parents => $parents || [], revision => $rev,
1782 log => '');
1783 my $headrev;
1785 my $logged = delete $self->{logged_rev_props};
1786 if (!$logged || $self->{-want_revprops}) {
1787 my $rp = $self->ra->rev_proplist($rev);
1788 foreach (sort keys %$rp) {
1789 my $v = $rp->{$_};
1790 if (/^svn:(author|date|log)$/) {
1791 $log_entry{$1} = $v;
1792 } elsif ($_ eq 'svm:headrev') {
1793 $headrev = $v;
1794 } else {
1795 print $un " rev_prop: ", uri_encode($_), ' ',
1796 uri_encode($v), "\n";
1797 }
1798 }
1799 } else {
1800 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
1801 }
1802 close $un or croak $!;
1803 $log_entry{date} = parse_svn_date($log_entry{date});
1805 $log_entry{log} .= "\n";
1806 my $author = $log_entry{author} = check_author($log_entry{author});
1807 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
1808 : ($author, undef);
1809 if (defined $headrev && $self->use_svm_props) {
1810 if ($self->rewrite_root) {
1811 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
1812 "options set!\n";
1813 }
1814 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
1815 # we don't want "SVM: initializing mirror for junk" ...
1816 return undef if $r == 0;
1817 my $svm = $self->svm;
1818 if ($uuid ne $svm->{uuid}) {
1819 die "UUID mismatch on SVM path:\n",
1820 "expected: $svm->{uuid}\n",
1821 " got: $uuid\n";
1822 }
1823 my $full_url = $self->full_url;
1824 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
1825 die "Failed to replace '$svm->{replace}' with ",
1826 "'$svm->{source}' in $full_url\n";
1827 $log_entry{metadata} = "$full_url\@$r $uuid";
1828 $log_entry{svm_revision} = $r;
1829 $email ||= "$author\@$uuid"
1830 } elsif ($self->use_svnsync_props) {
1831 my $full_url = $self->svnsync->{url};
1832 $full_url .= "/$self->{path}" if length $self->{path};
1833 my $uuid = $self->svnsync->{uuid};
1834 $log_entry{metadata} = "$full_url\@$rev $uuid";
1835 $email ||= "$author\@$uuid"
1836 } else {
1837 $log_entry{metadata} = $self->metadata_url. "\@$rev " .
1838 $self->ra->get_uuid;
1839 $email ||= "$author\@" . $self->ra->get_uuid;
1840 }
1841 $log_entry{name} = $name;
1842 $log_entry{email} = $email;
1843 \%log_entry;
1844}
1845sub fetch {
1847 my ($self, $min_rev, $max_rev, @parents) = @_;
1848 my ($last_rev, $last_commit) = $self->last_rev_commit;
1849 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
1850 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
1851}
1852sub set_tree_cb {
1854 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
1855 $self->{inject_parents} = { $rev => $tree };
1856 $self->fetch(undef, undef);
1857}
1858sub set_tree {
1860 my ($self, $tree) = (shift, shift);
1861 my $log_entry = ::get_commit_entry($tree);
1862 unless ($self->{last_rev}) {
1863 fatal("Must have an existing revision to commit\n");
1864 }
1865 my %ed_opts = ( r => $self->{last_rev},
1866 log => $log_entry->{log},
1867 ra => $self->ra,
1868 tree_a => $self->{last_commit},
1869 tree_b => $tree,
1870 editor_cb => sub {
1871 $self->set_tree_cb($log_entry, $tree, @_) },
1872 svn_path => $self->{path} );
1873 if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
1874 print "No changes\nr$self->{last_rev} = $tree\n";
1875 }
1876}
1877sub rebuild {
1879 my ($self) = @_;
1880 my $db_path = $self->db_path;
1881 return if (-e $db_path && ! -z $db_path);
1882 return unless ::verify_ref($self->refname.'^0');
1883 if (-f $self->{db_root}) {
1884 rename $self->{db_root}, $db_path or die
1885 "rename $self->{db_root} => $db_path failed: $!\n";
1886 my ($dir, $base) = ($db_path =~ m#^(.*?)/?([^/]+)$#);
1887 symlink $base, $self->{db_root} or die
1888 "symlink $base => $self->{db_root} failed: $!\n";
1889 return;
1890 }
1891 print "Rebuilding $db_path ...\n";
1892 my ($rev_list, $ctx) = command_output_pipe("rev-list", $self->refname);
1893 my $latest;
1894 my $full_url = $self->full_url;
1895 my $svn_uuid;
1896 while (<$rev_list>) {
1897 chomp;
1898 my $c = $_;
1899 die "Non-SHA1: $c\n" unless $c =~ /^$::sha1$/o;
1900 my ($url, $rev, $uuid) = ::cmt_metadata($c);
1901 # ignore merges (from set-tree)
1903 next if (!defined $rev || !$uuid);
1904 # if we merged or otherwise started elsewhere, this is
1906 # how we break out of it
1907 if ((defined $svn_uuid && ($uuid ne $svn_uuid)) ||
1908 ($full_url && $url && ($url ne $full_url))) {
1909 next;
1910 }
1911 $latest ||= $rev;
1912 $svn_uuid ||= $uuid;
1913 $self->rev_db_set($rev, $c);
1915 print "r$rev = $c\n";
1916 }
1917 command_close_pipe($rev_list, $ctx);
1918 print "Done rebuilding $db_path\n";
1919}
1920# rev_db:
1922# Tie::File seems to be prone to offset errors if revisions get sparse,
1923# it's not that fast, either. Tie::File is also not in Perl 5.6. So
1924# one of my favorite modules is out :< Next up would be one of the DBM
1925# modules, but I'm not sure which is most portable... So I'll just
1926# go with something that's plain-text, but still capable of
1927# being randomly accessed. So here's my ultra-simple fixed-width
1928# database. All records are 40 characters + "\n", so it's easy to seek
1929# to a revision: (41 * rev) is the byte offset.
1930# A record of 40 0s denotes an empty revision.
1931# And yes, it's still pretty fast (faster than Tie::File).
1932# These files are disposable unless noMetadata or useSvmProps is set
1933sub _rev_db_set {
1935 my ($fh, $rev, $commit) = @_;
1936 my $offset = $rev * 41;
1937 # assume that append is the common case:
1938 seek $fh, 0, 2 or croak $!;
1939 my $pos = tell $fh;
1940 if ($pos < $offset) {
1941 for (1 .. (($offset - $pos) / 41)) {
1942 print $fh (('0' x 40),"\n") or croak $!;
1943 }
1944 }
1945 seek $fh, $offset, 0 or croak $!;
1946 print $fh $commit,"\n" or croak $!;
1947}
1948sub mkfile {
1950 my ($path) = @_;
1951 unless (-e $path) {
1952 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
1953 mkpath([$dir]) unless -d $dir;
1954 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
1955 close $fh or die "Couldn't close (create) $path: $!\n";
1956 }
1957}
1958sub rev_db_set {
1960 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
1961 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
1962 my $db = $self->db_path($uuid);
1963 my $db_lock = "$db.lock";
1964 my $sig;
1965 if ($update_ref) {
1966 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
1967 $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] };
1968 }
1969 mkfile($db);
1970 $LOCKFILES{$db_lock} = 1;
1972 my $sync;
1973 # both of these options make our .rev_db file very, very important
1974 # and we can't afford to lose it because rebuild() won't work
1975 if ($self->use_svm_props || $self->no_metadata) {
1976 $sync = 1;
1977 copy($db, $db_lock) or die "rev_db_set(@_): ",
1978 "Failed to copy: ",
1979 "$db => $db_lock ($!)\n";
1980 } else {
1981 rename $db, $db_lock or die "rev_db_set(@_): ",
1982 "Failed to rename: ",
1983 "$db => $db_lock ($!)\n";
1984 }
1985 open my $fh, '+<', $db_lock or die "Couldn't open $db_lock: $!\n";
1986 _rev_db_set($fh, $rev, $commit);
1987 if ($sync) {
1988 $fh->flush or die "Couldn't flush $db_lock: $!\n";
1989 $fh->sync or die "Couldn't sync $db_lock: $!\n";
1990 }
1991 close $fh or croak $!;
1992 if ($update_ref) {
1993 $_head = $self;
1994 command_noisy('update-ref', '-m', "r$rev",
1995 $self->refname, $commit);
1996 }
1997 rename $db_lock, $db or die "rev_db_set(@_): ", "Failed to rename: ",
1998 "$db_lock => $db ($!)\n";
1999 delete $LOCKFILES{$db_lock};
2000 if ($update_ref) {
2001 $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} =
2002 $SIG{USR1} = $SIG{USR2} = 'DEFAULT';
2003 kill $sig, $$ if defined $sig;
2004 }
2005}
2006sub rev_db_max {
2008 my ($self) = @_;
2009 $self->rebuild;
2010 my $db_path = $self->db_path;
2011 my @stat = stat $db_path or return 0;
2012 ($stat[7] % 41) == 0 or die "$db_path inconsistent size: $stat[7]\n";
2013 my $max = $stat[7] / 41;
2014 (($max > 0) ? $max - 1 : 0);
2015}
2016sub rev_db_get {
2018 my ($self, $rev, $uuid) = @_;
2019 my $ret;
2020 my $offset = $rev * 41;
2021 my $db_path = $self->db_path($uuid);
2022 return undef unless -e $db_path;
2023 open my $fh, '<', $db_path or croak $!;
2024 if (sysseek($fh, $offset, 0) == $offset) {
2025 my $read = sysread($fh, $ret, 40);
2026 $ret = undef if ($read != 40 || $ret eq ('0'x40));
2027 }
2028 close $fh or croak $!;
2029 $ret;
2030}
2031sub find_rev_before {
2033 my ($self, $rev, $eq_ok) = @_;
2034 --$rev unless $eq_ok;
2035 while ($rev > 0) {
2036 if (my $c = $self->rev_db_get($rev)) {
2037 return ($rev, $c);
2038 }
2039 --$rev;
2040 }
2041 return (undef, undef);
2042}
2043sub _new {
2045 my ($class, $repo_id, $ref_id, $path) = @_;
2046 unless (defined $repo_id && length $repo_id) {
2047 $repo_id = $Git::SVN::default_repo_id;
2048 }
2049 unless (defined $ref_id && length $ref_id) {
2050 $_[2] = $ref_id = $Git::SVN::default_ref_id;
2051 }
2052 $_[1] = $repo_id = sanitize_remote_name($repo_id);
2053 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2054 $_[3] = $path = '' unless (defined $path);
2055 mkpath(["$ENV{GIT_DIR}/svn"]);
2056 bless {
2057 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2058 path => $path, config => "$ENV{GIT_DIR}/svn/config",
2059 db_root => "$dir/.rev_db", repo_id => $repo_id }, $class;
2060}
2061sub db_path {
2063 my ($self, $uuid) = @_;
2064 $uuid ||= $self->ra_uuid;
2065 "$self->{db_root}.$uuid";
2066}
2067sub uri_encode {
2069 my ($f) = @_;
2070 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2071 $f
2072}
2073package Git::SVN::Prompt;
2075use strict;
2076use warnings;
2077require SVN::Core;
2078use vars qw/$_no_auth_cache $_username/;
2079sub simple {
2081 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2082 $may_save = undef if $_no_auth_cache;
2083 $default_username = $_username if defined $_username;
2084 if (defined $default_username && length $default_username) {
2085 if (defined $realm && length $realm) {
2086 print STDERR "Authentication realm: $realm\n";
2087 STDERR->flush;
2088 }
2089 $cred->username($default_username);
2090 } else {
2091 username($cred, $realm, $may_save, $pool);
2092 }
2093 $cred->password(_read_password("Password for '" .
2094 $cred->username . "': ", $realm));
2095 $cred->may_save($may_save);
2096 $SVN::_Core::SVN_NO_ERROR;
2097}
2098sub ssl_server_trust {
2100 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2101 $may_save = undef if $_no_auth_cache;
2102 print STDERR "Error validating server certificate for '$realm':\n";
2103 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2104 print STDERR " - The certificate is not issued by a trusted ",
2105 "authority. Use the\n",
2106 " fingerprint to validate the certificate manually!\n";
2107 }
2108 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2109 print STDERR " - The certificate hostname does not match.\n";
2110 }
2111 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2112 print STDERR " - The certificate is not yet valid.\n";
2113 }
2114 if ($failures & $SVN::Auth::SSL::EXPIRED) {
2115 print STDERR " - The certificate has expired.\n";
2116 }
2117 if ($failures & $SVN::Auth::SSL::OTHER) {
2118 print STDERR " - The certificate has an unknown error.\n";
2119 }
2120 printf STDERR
2121 "Certificate information:\n".
2122 " - Hostname: %s\n".
2123 " - Valid: from %s until %s\n".
2124 " - Issuer: %s\n".
2125 " - Fingerprint: %s\n",
2126 map $cert_info->$_, qw(hostname valid_from valid_until
2127 issuer_dname fingerprint);
2128 my $choice;
2129prompt:
2130 print STDERR $may_save ?
2131 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
2132 "(R)eject or accept (t)emporarily? ";
2133 STDERR->flush;
2134 $choice = lc(substr(<STDIN> || 'R', 0, 1));
2135 if ($choice =~ /^t$/i) {
2136 $cred->may_save(undef);
2137 } elsif ($choice =~ /^r$/i) {
2138 return -1;
2139 } elsif ($may_save && $choice =~ /^p$/i) {
2140 $cred->may_save($may_save);
2141 } else {
2142 goto prompt;
2143 }
2144 $cred->accepted_failures($failures);
2145 $SVN::_Core::SVN_NO_ERROR;
2146}
2147sub ssl_client_cert {
2149 my ($cred, $realm, $may_save, $pool) = @_;
2150 $may_save = undef if $_no_auth_cache;
2151 print STDERR "Client certificate filename: ";
2152 STDERR->flush;
2153 chomp(my $filename = <STDIN>);
2154 $cred->cert_file($filename);
2155 $cred->may_save($may_save);
2156 $SVN::_Core::SVN_NO_ERROR;
2157}
2158sub ssl_client_cert_pw {
2160 my ($cred, $realm, $may_save, $pool) = @_;
2161 $may_save = undef if $_no_auth_cache;
2162 $cred->password(_read_password("Password: ", $realm));
2163 $cred->may_save($may_save);
2164 $SVN::_Core::SVN_NO_ERROR;
2165}
2166sub username {
2168 my ($cred, $realm, $may_save, $pool) = @_;
2169 $may_save = undef if $_no_auth_cache;
2170 if (defined $realm && length $realm) {
2171 print STDERR "Authentication realm: $realm\n";
2172 }
2173 my $username;
2174 if (defined $_username) {
2175 $username = $_username;
2176 } else {
2177 print STDERR "Username: ";
2178 STDERR->flush;
2179 chomp($username = <STDIN>);
2180 }
2181 $cred->username($username);
2182 $cred->may_save($may_save);
2183 $SVN::_Core::SVN_NO_ERROR;
2184}
2185sub _read_password {
2187 my ($prompt, $realm) = @_;
2188 print STDERR $prompt;
2189 STDERR->flush;
2190 require Term::ReadKey;
2191 Term::ReadKey::ReadMode('noecho');
2192 my $password = '';
2193 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
2194 last if $key =~ /[\012\015]/; # \n\r
2195 $password .= $key;
2196 }
2197 Term::ReadKey::ReadMode('restore');
2198 print STDERR "\n";
2199 STDERR->flush;
2200 $password;
2201}
2202package main;
2204{
2206 my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
2207 $SVN::Node::dir.$SVN::Node::unknown.
2208 $SVN::Node::none.$SVN::Node::file.
2209 $SVN::Node::dir.$SVN::Node::unknown.
2210 $SVN::Auth::SSL::CNMISMATCH.
2211 $SVN::Auth::SSL::NOTYETVALID.
2212 $SVN::Auth::SSL::EXPIRED.
2213 $SVN::Auth::SSL::UNKNOWNCA.
2214 $SVN::Auth::SSL::OTHER;
2215}
2216package SVN::Git::Fetcher;
2218use vars qw/@ISA/;
2219use strict;
2220use warnings;
2221use Carp qw/croak/;
2222use IO::File qw//;
2223use Digest::MD5;
2224# file baton members: path, mode_a, mode_b, pool, fh, blob, base
2226sub new {
2227 my ($class, $git_svn) = @_;
2228 my $self = SVN::Delta::Editor->new;
2229 bless $self, $class;
2230 $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
2231 $self->{empty} = {};
2232 $self->{dir_prop} = {};
2233 $self->{file_prop} = {};
2234 $self->{absent_dir} = {};
2235 $self->{absent_file} = {};
2236 $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
2237 $self;
2238}
2239sub set_path_strip {
2241 my ($self, $path) = @_;
2242 $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
2243}
2244sub open_root {
2246 { path => '' };
2247}
2248sub open_directory {
2250 my ($self, $path, $pb, $rev) = @_;
2251 { path => $path };
2252}
2253sub git_path {
2255 my ($self, $path) = @_;
2256 if ($self->{path_strip}) {
2257 $path =~ s!$self->{path_strip}!! or
2258 die "Failed to strip path '$path' ($self->{path_strip})\n";
2259 }
2260 $path;
2261}
2262sub delete_entry {
2264 my ($self, $path, $rev, $pb) = @_;
2265 my $gpath = $self->git_path($path);
2267 return undef if ($gpath eq '');
2268 # remove entire directories.
2270 if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
2271 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
2272 -r --name-only -z/,
2273 $self->{c}, '--', $gpath);
2274 local $/ = "\0";
2275 while (<$ls>) {
2276 chomp;
2277 $self->{gii}->remove($_);
2278 print "\tD\t$_\n" unless $::_q;
2279 }
2280 print "\tD\t$gpath/\n" unless $::_q;
2281 command_close_pipe($ls, $ctx);
2282 $self->{empty}->{$path} = 0
2283 } else {
2284 $self->{gii}->remove($gpath);
2285 print "\tD\t$gpath\n" unless $::_q;
2286 }
2287 undef;
2288}
2289sub open_file {
2291 my ($self, $path, $pb, $rev) = @_;
2292 my $gpath = $self->git_path($path);
2293 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
2294 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
2295 unless (defined $mode && defined $blob) {
2296 die "$path was not found in commit $self->{c} (r$rev)\n";
2297 }
2298 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
2299 pool => SVN::Pool->new, action => 'M' };
2300}
2301sub add_file {
2303 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
2304 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2305 delete $self->{empty}->{$dir};
2306 { path => $path, mode_a => 100644, mode_b => 100644,
2307 pool => SVN::Pool->new, action => 'A' };
2308}
2309sub add_directory {
2311 my ($self, $path, $cp_path, $cp_rev) = @_;
2312 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2313 delete $self->{empty}->{$dir};
2314 $self->{empty}->{$path} = 1;
2315 { path => $path };
2316}
2317sub change_dir_prop {
2319 my ($self, $db, $prop, $value) = @_;
2320 $self->{dir_prop}->{$db->{path}} ||= {};
2321 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
2322 undef;
2323}
2324sub absent_directory {
2326 my ($self, $path, $pb) = @_;
2327 $self->{absent_dir}->{$pb->{path}} ||= [];
2328 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
2329 undef;
2330}
2331sub absent_file {
2333 my ($self, $path, $pb) = @_;
2334 $self->{absent_file}->{$pb->{path}} ||= [];
2335 push @{$self->{absent_file}->{$pb->{path}}}, $path;
2336 undef;
2337}
2338sub change_file_prop {
2340 my ($self, $fb, $prop, $value) = @_;
2341 if ($prop eq 'svn:executable') {
2342 if ($fb->{mode_b} != 120000) {
2343 $fb->{mode_b} = defined $value ? 100755 : 100644;
2344 }
2345 } elsif ($prop eq 'svn:special') {
2346 $fb->{mode_b} = defined $value ? 120000 : 100644;
2347 } else {
2348 $self->{file_prop}->{$fb->{path}} ||= {};
2349 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
2350 }
2351 undef;
2352}
2353sub apply_textdelta {
2355 my ($self, $fb, $exp) = @_;
2356 my $fh = IO::File->new_tmpfile;
2357 $fh->autoflush(1);
2358 # $fh gets auto-closed() by SVN::TxDelta::apply(),
2359 # (but $base does not,) so dup() it for reading in close_file
2360 open my $dup, '<&', $fh or croak $!;
2361 my $base = IO::File->new_tmpfile;
2362 $base->autoflush(1);
2363 if ($fb->{blob}) {
2364 defined (my $pid = fork) or croak $!;
2365 if (!$pid) {
2366 open STDOUT, '>&', $base or croak $!;
2367 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
2368 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
2369 }
2370 waitpid $pid, 0;
2371 croak $? if $?;
2372 if (defined $exp) {
2374 seek $base, 0, 0 or croak $!;
2375 my $md5 = Digest::MD5->new;
2376 $md5->addfile($base);
2377 my $got = $md5->hexdigest;
2378 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
2379 "expected: $exp\n",
2380 " got: $got\n" if ($got ne $exp);
2381 }
2382 }
2383 seek $base, 0, 0 or croak $!;
2384 $fb->{fh} = $dup;
2385 $fb->{base} = $base;
2386 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
2387}
2388sub close_file {
2390 my ($self, $fb, $exp) = @_;
2391 my $hash;
2392 my $path = $self->git_path($fb->{path});
2393 if (my $fh = $fb->{fh}) {
2394 seek($fh, 0, 0) or croak $!;
2395 my $md5 = Digest::MD5->new;
2396 $md5->addfile($fh);
2397 my $got = $md5->hexdigest;
2398 die "Checksum mismatch: $path\n",
2399 "expected: $exp\n got: $got\n" if ($got ne $exp);
2400 seek($fh, 0, 0) or croak $!;
2401 if ($fb->{mode_b} == 120000) {
2402 read($fh, my $buf, 5) == 5 or croak $!;
2403 $buf eq 'link ' or die "$path has mode 120000",
2404 "but is not a link\n";
2405 }
2406 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
2407 if (!$pid) {
2408 open STDIN, '<&', $fh or croak $!;
2409 exec qw/git-hash-object -w --stdin/ or croak $!;
2410 }
2411 chomp($hash = do { local $/; <$out> });
2412 close $out or croak $!;
2413 close $fh or croak $!;
2414 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
2415 close $fb->{base} or croak $!;
2416 } else {
2417 $hash = $fb->{blob} or die "no blob information\n";
2418 }
2419 $fb->{pool}->clear;
2420 $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
2421 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
2422 undef;
2423}
2424sub abort_edit {
2426 my $self = shift;
2427 $self->{nr} = $self->{gii}->{nr};
2428 delete $self->{gii};
2429 $self->SUPER::abort_edit(@_);
2430}
2431sub close_edit {
2433 my $self = shift;
2434 $self->{git_commit_ok} = 1;
2435 $self->{nr} = $self->{gii}->{nr};
2436 delete $self->{gii};
2437 $self->SUPER::close_edit(@_);
2438}
2439package SVN::Git::Editor;
2441use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
2442use strict;
2443use warnings;
2444use Carp qw/croak/;
2445use IO::File;
2446use Digest::MD5;
2447sub new {
2449 my ($class, $opts) = @_;
2450 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
2451 die "$_ required!\n" unless (defined $opts->{$_});
2452 }
2453 my $pool = SVN::Pool->new;
2455 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
2456 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
2457 $opts->{r}, $mods);
2458 # $opts->{ra} functions should not be used after this:
2460 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
2461 $opts->{editor_cb}, $pool);
2462 my $self = SVN::Delta::Editor->new(@ce, $pool);
2463 bless $self, $class;
2464 foreach (qw/svn_path r tree_a tree_b/) {
2465 $self->{$_} = $opts->{$_};
2466 }
2467 $self->{url} = $opts->{ra}->{url};
2468 $self->{mods} = $mods;
2469 $self->{types} = $types;
2470 $self->{pool} = $pool;
2471 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
2472 $self->{rm} = { };
2473 $self->{path_prefix} = length $self->{svn_path} ?
2474 "$self->{svn_path}/" : '';
2475 return $self;
2476}
2477sub generate_diff {
2479 my ($tree_a, $tree_b) = @_;
2480 my @diff_tree = qw(diff-tree -z -r);
2481 if ($_cp_similarity) {
2482 push @diff_tree, "-C$_cp_similarity";
2483 } else {
2484 push @diff_tree, '-C';
2485 }
2486 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
2487 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
2488 push @diff_tree, $tree_a, $tree_b;
2489 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
2490 local $/ = "\0";
2491 my $state = 'meta';
2492 my @mods;
2493 while (<$diff_fh>) {
2494 chomp $_; # this gets rid of the trailing "\0"
2495 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
2496 $::sha1\s($::sha1)\s
2497 ([MTCRAD])\d*$/xo) {
2498 push @mods, { mode_a => $1, mode_b => $2,
2499 sha1_b => $3, chg => $4 };
2500 if ($4 =~ /^(?:C|R)$/) {
2501 $state = 'file_a';
2502 } else {
2503 $state = 'file_b';
2504 }
2505 } elsif ($state eq 'file_a') {
2506 my $x = $mods[$#mods] or croak "Empty array\n";
2507 if ($x->{chg} !~ /^(?:C|R)$/) {
2508 croak "Error parsing $_, $x->{chg}\n";
2509 }
2510 $x->{file_a} = $_;
2511 $state = 'file_b';
2512 } elsif ($state eq 'file_b') {
2513 my $x = $mods[$#mods] or croak "Empty array\n";
2514 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
2515 croak "Error parsing $_, $x->{chg}\n";
2516 }
2517 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
2518 croak "Error parsing $_, $x->{chg}\n";
2519 }
2520 $x->{file_b} = $_;
2521 $state = 'meta';
2522 } else {
2523 croak "Error parsing $_\n";
2524 }
2525 }
2526 command_close_pipe($diff_fh, $ctx);
2527 \@mods;
2528}
2529sub check_diff_paths {
2531 my ($ra, $pfx, $rev, $mods) = @_;
2532 my %types;
2533 $pfx .= '/' if length $pfx;
2534 sub type_diff_paths {
2536 my ($ra, $types, $path, $rev) = @_;
2537 my @p = split m#/+#, $path;
2538 my $c = shift @p;
2539 unless (defined $types->{$c}) {
2540 $types->{$c} = $ra->check_path($c, $rev);
2541 }
2542 while (@p) {
2543 $c .= '/' . shift @p;
2544 next if defined $types->{$c};
2545 $types->{$c} = $ra->check_path($c, $rev);
2546 }
2547 }
2548 foreach my $m (@$mods) {
2550 foreach my $f (qw/file_a file_b/) {
2551 next unless defined $m->{$f};
2552 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
2553 if (length $pfx.$dir && ! defined $types{$dir}) {
2554 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
2555 }
2556 }
2557 }
2558 \%types;
2559}
2560sub split_path {
2562 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
2563}
2564sub repo_path {
2566 my ($self, $path) = @_;
2567 $self->{path_prefix}.(defined $path ? $path : '');
2568}
2569sub url_path {
2571 my ($self, $path) = @_;
2572 $self->{url} . '/' . $self->repo_path($path);
2573}
2574sub rmdirs {
2576 my ($self) = @_;
2577 my $rm = $self->{rm};
2578 delete $rm->{''}; # we never delete the url we're tracking
2579 return unless %$rm;
2580 foreach (keys %$rm) {
2582 my @d = split m#/#, $_;
2583 my $c = shift @d;
2584 $rm->{$c} = 1;
2585 while (@d) {
2586 $c .= '/' . shift @d;
2587 $rm->{$c} = 1;
2588 }
2589 }
2590 delete $rm->{$self->{svn_path}};
2591 delete $rm->{''}; # we never delete the url we're tracking
2592 return unless %$rm;
2593 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
2595 $self->{tree_b});
2596 local $/ = "\0";
2597 while (<$fh>) {
2598 chomp;
2599 my @dn = split m#/#, $_;
2600 while (pop @dn) {
2601 delete $rm->{join '/', @dn};
2602 }
2603 unless (%$rm) {
2604 close $fh;
2605 return;
2606 }
2607 }
2608 command_close_pipe($fh, $ctx);
2609 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
2611 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
2612 $self->close_directory($bat->{$d}, $p);
2613 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
2614 print "\tD+\t$d/\n" unless $::_q;
2615 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
2616 delete $bat->{$d};
2617 }
2618}
2619sub open_or_add_dir {
2621 my ($self, $full_path, $baton) = @_;
2622 my $t = $self->{types}->{$full_path};
2623 if (!defined $t) {
2624 die "$full_path not known in r$self->{r} or we have a bug!\n";
2625 }
2626 if ($t == $SVN::Node::none) {
2627 return $self->add_directory($full_path, $baton,
2628 undef, -1, $self->{pool});
2629 } elsif ($t == $SVN::Node::dir) {
2630 return $self->open_directory($full_path, $baton,
2631 $self->{r}, $self->{pool});
2632 }
2633 print STDERR "$full_path already exists in repository at ",
2634 "r$self->{r} and it is not a directory (",
2635 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
2636 exit 1;
2637}
2638sub ensure_path {
2640 my ($self, $path) = @_;
2641 my $bat = $self->{bat};
2642 my $repo_path = $self->repo_path($path);
2643 return $bat->{''} unless (length $repo_path);
2644 my @p = split m#/+#, $repo_path;
2645 my $c = shift @p;
2646 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
2647 while (@p) {
2648 my $c0 = $c;
2649 $c .= '/' . shift @p;
2650 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
2651 }
2652 return $bat->{$c};
2653}
2654sub A {
2656 my ($self, $m) = @_;
2657 my ($dir, $file) = split_path($m->{file_b});
2658 my $pbat = $self->ensure_path($dir);
2659 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2660 undef, -1);
2661 print "\tA\t$m->{file_b}\n" unless $::_q;
2662 $self->chg_file($fbat, $m);
2663 $self->close_file($fbat,undef,$self->{pool});
2664}
2665sub C {
2667 my ($self, $m) = @_;
2668 my ($dir, $file) = split_path($m->{file_b});
2669 my $pbat = $self->ensure_path($dir);
2670 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2671 $self->url_path($m->{file_a}), $self->{r});
2672 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2673 $self->chg_file($fbat, $m);
2674 $self->close_file($fbat,undef,$self->{pool});
2675}
2676sub delete_entry {
2678 my ($self, $path, $pbat) = @_;
2679 my $rpath = $self->repo_path($path);
2680 my ($dir, $file) = split_path($rpath);
2681 $self->{rm}->{$dir} = 1;
2682 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
2683}
2684sub R {
2686 my ($self, $m) = @_;
2687 my ($dir, $file) = split_path($m->{file_b});
2688 my $pbat = $self->ensure_path($dir);
2689 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2690 $self->url_path($m->{file_a}), $self->{r});
2691 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2692 $self->chg_file($fbat, $m);
2693 $self->close_file($fbat,undef,$self->{pool});
2694 ($dir, $file) = split_path($m->{file_a});
2696 $pbat = $self->ensure_path($dir);
2697 $self->delete_entry($m->{file_a}, $pbat);
2698}
2699sub M {
2701 my ($self, $m) = @_;
2702 my ($dir, $file) = split_path($m->{file_b});
2703 my $pbat = $self->ensure_path($dir);
2704 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
2705 $pbat,$self->{r},$self->{pool});
2706 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
2707 $self->chg_file($fbat, $m);
2708 $self->close_file($fbat,undef,$self->{pool});
2709}
2710sub T { shift->M(@_) }
2712sub change_file_prop {
2714 my ($self, $fbat, $pname, $pval) = @_;
2715 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
2716}
2717sub chg_file {
2719 my ($self, $fbat, $m) = @_;
2720 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
2721 $self->change_file_prop($fbat,'svn:executable','*');
2722 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
2723 $self->change_file_prop($fbat,'svn:executable',undef);
2724 }
2725 my $fh = IO::File->new_tmpfile or croak $!;
2726 if ($m->{mode_b} =~ /^120/) {
2727 print $fh 'link ' or croak $!;
2728 $self->change_file_prop($fbat,'svn:special','*');
2729 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
2730 $self->change_file_prop($fbat,'svn:special',undef);
2731 }
2732 defined(my $pid = fork) or croak $!;
2733 if (!$pid) {
2734 open STDOUT, '>&', $fh or croak $!;
2735 exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!;
2736 }
2737 waitpid $pid, 0;
2738 croak $? if $?;
2739 $fh->flush == 0 or croak $!;
2740 seek $fh, 0, 0 or croak $!;
2741 my $md5 = Digest::MD5->new;
2743 $md5->addfile($fh) or croak $!;
2744 seek $fh, 0, 0 or croak $!;
2745 my $exp = $md5->hexdigest;
2747 my $pool = SVN::Pool->new;
2748 my $atd = $self->apply_textdelta($fbat, undef, $pool);
2749 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
2750 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
2751 $pool->clear;
2752 close $fh or croak $!;
2754}
2755sub D {
2757 my ($self, $m) = @_;
2758 my ($dir, $file) = split_path($m->{file_b});
2759 my $pbat = $self->ensure_path($dir);
2760 print "\tD\t$m->{file_b}\n" unless $::_q;
2761 $self->delete_entry($m->{file_b}, $pbat);
2762}
2763sub close_edit {
2765 my ($self) = @_;
2766 my ($p,$bat) = ($self->{pool}, $self->{bat});
2767 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
2768 $self->close_directory($bat->{$_}, $p);
2769 }
2770 $self->SUPER::close_edit($p);
2771 $p->clear;
2772}
2773sub abort_edit {
2775 my ($self) = @_;
2776 $self->SUPER::abort_edit($self->{pool});
2777}
2778sub DESTROY {
2780 my $self = shift;
2781 $self->SUPER::DESTROY(@_);
2782 $self->{pool}->clear;
2783}
2784# this drives the editor
2786sub apply_diff {
2787 my ($self) = @_;
2788 my $mods = $self->{mods};
2789 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
2790 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
2791 my $f = $m->{chg};
2792 if (defined $o{$f}) {
2793 $self->$f($m);
2794 } else {
2795 fatal("Invalid change type: $f\n");
2796 }
2797 }
2798 $self->rmdirs if $_rmdir;
2799 if (@$mods == 0) {
2800 $self->abort_edit;
2801 } else {
2802 $self->close_edit;
2803 }
2804 return scalar @$mods;
2805}
2806package Git::SVN::Ra;
2808use vars qw/@ISA $config_dir $_log_window_size/;
2809use strict;
2810use warnings;
2811my ($can_do_switch);
2812my $RA;
2813BEGIN {
2815 # enforce temporary pool usage for some simple functions
2816 my $e;
2817 foreach (qw/get_latest_revnum get_uuid get_repos_root/) {
2818 $e .= "sub $_ {
2819 my \$self = shift;
2820 my \$pool = SVN::Pool->new;
2821 my \@ret = \$self->SUPER::$_(\@_,\$pool);
2822 \$pool->clear;
2823 wantarray ? \@ret : \$ret[0]; }\n";
2824 }
2825 # get_dir needs $pool held in cache for dirents to work,
2827 # check_path is cacheable and rev_proplist is close enough
2828 # for our purposes.
2829 foreach (qw/check_path get_dir rev_proplist/) {
2830 $e .= "my \%${_}_cache; my \$${_}_rev = 0; sub $_ {
2831 my \$self = shift;
2832 my \$r = pop;
2833 my \$k = join(\"\\0\", \@_);
2834 if (my \$x = \$${_}_cache{\$r}->{\$k}) {
2835 return wantarray ? \@\$x : \$x->[0];
2836 }
2837 my \$pool = SVN::Pool->new;
2838 my \@ret = \$self->SUPER::$_(\@_, \$r, \$pool);
2839 if (\$r != \$${_}_rev) {
2840 \%${_}_cache = ( pool => [] );
2841 \$${_}_rev = \$r;
2842 }
2843 \$${_}_cache{\$r}->{\$k} = \\\@ret;
2844 push \@{\$${_}_cache{pool}}, \$pool;
2845 wantarray ? \@ret : \$ret[0]; }\n";
2846 }
2847 $e .= "\n1;";
2848 eval $e or die $@;
2849}
2850sub new {
2852 my ($class, $url) = @_;
2853 $url =~ s!/+$!!;
2854 return $RA if ($RA && $RA->{url} eq $url);
2855 SVN::_Core::svn_config_ensure($config_dir, undef);
2857 my ($baton, $callbacks) = SVN::Core::auth_open_helper([
2858 SVN::Client::get_simple_provider(),
2859 SVN::Client::get_ssl_server_trust_file_provider(),
2860 SVN::Client::get_simple_prompt_provider(
2861 \&Git::SVN::Prompt::simple, 2),
2862 SVN::Client::get_ssl_client_cert_prompt_provider(
2863 \&Git::SVN::Prompt::ssl_client_cert, 2),
2864 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
2865 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
2866 SVN::Client::get_username_provider(),
2867 SVN::Client::get_ssl_server_trust_prompt_provider(
2868 \&Git::SVN::Prompt::ssl_server_trust),
2869 SVN::Client::get_username_prompt_provider(
2870 \&Git::SVN::Prompt::username, 2),
2871 ]);
2872 my $config = SVN::Core::config_get_config($config_dir);
2873 my $self = SVN::Ra->new(url => $url, auth => $baton,
2874 config => $config,
2875 pool => SVN::Pool->new,
2876 auth_provider_callbacks => $callbacks);
2877 $self->{svn_path} = $url;
2878 $self->{repos_root} = $self->get_repos_root;
2879 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
2880 $RA = bless $self, $class;
2881}
2882sub DESTROY {
2884 # do not call the real DESTROY since we store ourselves in $RA
2885}
2886sub get_log {
2888 my ($self, @args) = @_;
2889 my $pool = SVN::Pool->new;
2890 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
2891 my $ret = $self->SUPER::get_log(@args, $pool);
2892 $pool->clear;
2893 $ret;
2894}
2895sub get_commit_editor {
2897 my ($self, $log, $cb, $pool) = @_;
2898 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
2899 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
2900}
2901sub gs_do_update {
2903 my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
2904 my $new = ($rev_a == $rev_b);
2905 my $path = $gs->{path};
2906 my $pool = SVN::Pool->new;
2908 $editor->set_path_strip($path);
2909 my (@pc) = split m#/#, $path;
2910 my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
2911 1, $editor, $pool);
2912 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2913 # Since we can't rely on svn_ra_reparent being available, we'll
2915 # just have to do some magic with set_path to make it so
2916 # we only want a partial path.
2917 my $sp = '';
2918 my $final = join('/', @pc);
2919 while (@pc) {
2920 $reporter->set_path($sp, $rev_b, 0, @lock, $pool);
2921 $sp .= '/' if length $sp;
2922 $sp .= shift @pc;
2923 }
2924 die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
2925 $reporter->set_path($sp, $rev_a, $new, @lock, $pool);
2927 $reporter->finish_report($pool);
2929 $pool->clear;
2930 $editor->{git_commit_ok};
2931}
2932# this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
2934# svn_ra_reparent didn't work before 1.4)
2935sub gs_do_switch {
2936 my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
2937 my $path = $gs->{path};
2938 my $pool = SVN::Pool->new;
2939 my $full_url = $self->{url};
2941 my $old_url = $full_url;
2942 $full_url .= "/$path" if length $path;
2943 my ($ra, $reparented);
2944 if ($old_url ne $full_url) {
2945 if ($old_url !~ m#^svn(\+ssh)?://#) {
2946 SVN::_Ra::svn_ra_reparent($self->{session}, $full_url,
2947 $pool);
2948 $self->{url} = $full_url;
2949 $reparented = 1;
2950 } else {
2951 $ra = Git::SVN::Ra->new($full_url);
2952 }
2953 }
2954 $ra ||= $self;
2955 my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
2956 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2957 $reporter->set_path('', $rev_a, 0, @lock, $pool);
2958 $reporter->finish_report($pool);
2959 if ($reparented) {
2961 SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
2962 $self->{url} = $old_url;
2963 }
2964 $pool->clear;
2966 $editor->{git_commit_ok};
2967}
2968sub gs_fetch_loop_common {
2970 my ($self, $base, $head, $gsv, $globs) = @_;
2971 return if ($base > $head);
2972 my $inc = $_log_window_size;
2973 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
2974 my %common;
2975 my $common_max = scalar @$gsv;
2976 foreach my $gs (@$gsv) {
2978 my @tmp = split m#/#, $gs->{path};
2979 my $p = '';
2980 foreach (@tmp) {
2981 $p .= length($p) ? "/$_" : $_;
2982 $common{$p} ||= 0;
2983 $common{$p}++;
2984 }
2985 }
2986 $globs ||= [];
2987 $common_max += scalar @$globs;
2988 foreach my $glob (@$globs) {
2989 my @tmp = split m#/#, $glob->{path}->{left};
2990 my $p = '';
2991 foreach (@tmp) {
2992 $p .= length($p) ? "/$_" : $_;
2993 $common{$p} ||= 0;
2994 $common{$p}++;
2995 }
2996 }
2997 my $longest_path = '';
2999 foreach (sort {length $b <=> length $a} keys %common) {
3000 if ($common{$_} == $common_max) {
3001 $longest_path = $_;
3002 last;
3003 }
3004 }
3005 while (1) {
3006 my %revs;
3007 my $err;
3008 my $err_handler = $SVN::Error::handler;
3009 $SVN::Error::handler = sub {
3010 ($err) = @_;
3011 skip_unknown_revs($err);
3012 };
3013 sub _cb {
3014 my ($paths, $r, $author, $date, $log) = @_;
3015 [ dup_changed_paths($paths),
3016 { author => $author, date => $date, log => $log } ];
3017 }
3018 $self->get_log([$longest_path], $min, $max, 0, 1, 1,
3019 sub { $revs{$_[1]} = _cb(@_) });
3020 if ($err && $max >= $head) {
3021 print STDERR "Path '$longest_path' ",
3022 "was probably deleted:\n",
3023 $err->expanded_message,
3024 "\nWill attempt to follow ",
3025 "revisions r$min .. r$max ",
3026 "committed before the deletion\n";
3027 my $hi = $max;
3028 while (--$hi >= $min) {
3029 my $ok;
3030 $self->get_log([$longest_path], $min, $hi,
3031 0, 1, 1, sub {
3032 $ok ||= $_[1];
3033 $revs{$_[1]} = _cb(@_) });
3034 if ($ok) {
3035 print STDERR "r$min .. r$ok OK\n";
3036 last;
3037 }
3038 }
3039 }
3040 $SVN::Error::handler = $err_handler;
3041 my %exists = map { $_->{path} => $_ } @$gsv;
3043 foreach my $r (sort {$a <=> $b} keys %revs) {
3044 my ($paths, $logged) = @{$revs{$r}};
3045 foreach my $gs ($self->match_globs(\%exists, $paths,
3047 $globs, $r)) {
3048 if ($gs->rev_db_max >= $r) {
3049 next;
3050 }
3051 next unless $gs->match_paths($paths, $r);
3052 $gs->{logged_rev_props} = $logged;
3053 if (my $last_commit = $gs->last_commit) {
3054 $gs->assert_index_clean($last_commit);
3055 }
3056 my $log_entry = $gs->do_fetch($paths, $r);
3057 if ($log_entry) {
3058 $gs->do_git_commit($log_entry);
3059 }
3060 }
3061 foreach my $g (@$globs) {
3062 my $k = "svn-remote.$g->{remote}." .
3063 "$g->{t}-maxRev";
3064 Git::SVN::tmp_config($k, $r);
3065 }
3066 }
3067 # pre-fill the .rev_db since it'll eventually get filled in
3068 # with '0' x40 if something new gets committed
3069 foreach my $gs (@$gsv) {
3070 next if defined $gs->rev_db_get($max);
3071 $gs->rev_db_set($max, 0 x40);
3072 }
3073 foreach my $g (@$globs) {
3074 my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
3075 Git::SVN::tmp_config($k, $max);
3076 }
3077 last if $max >= $head;
3078 $min = $max + 1;
3079 $max += $inc;
3080 $max = $head if ($max > $head);
3081 }
3082}
3083sub match_globs {
3085 my ($self, $exists, $paths, $globs, $r) = @_;
3086 sub get_dir_check {
3088 my ($self, $exists, $g, $r) = @_;
3089 my @x = eval { $self->get_dir($g->{path}->{left}, $r) };
3090 return unless scalar @x == 3;
3091 my $dirents = $x[0];
3092 foreach my $de (keys %$dirents) {
3093 next if $dirents->{$de}->kind != $SVN::Node::dir;
3094 my $p = $g->{path}->full_path($de);
3095 next if $exists->{$p};
3096 next if (length $g->{path}->{right} &&
3097 ($self->check_path($p, $r) !=
3098 $SVN::Node::dir));
3099 $exists->{$p} = Git::SVN->init($self->{url}, $p, undef,
3100 $g->{ref}->full_path($de), 1);
3101 }
3102 }
3103 foreach my $g (@$globs) {
3104 if (my $path = $paths->{"/$g->{path}->{left}"}) {
3105 if ($path->{action} =~ /^[AR]$/) {
3106 get_dir_check($self, $exists, $g, $r);
3107 }
3108 }
3109 foreach (keys %$paths) {
3110 if (/$g->{path}->{left_regex}/ &&
3111 !/$g->{path}->{regex}/) {
3112 next if $paths->{$_}->{action} !~ /^[AR]$/;
3113 get_dir_check($self, $exists, $g, $r);
3114 }
3115 next unless /$g->{path}->{regex}/;
3116 my $p = $1;
3117 my $pathname = $g->{path}->full_path($p);
3118 next if $exists->{$pathname};
3119 $exists->{$pathname} = Git::SVN->init(
3120 $self->{url}, $pathname, undef,
3121 $g->{ref}->full_path($p), 1);
3122 }
3123 my $c = '';
3124 foreach (split m#/#, $g->{path}->{left}) {
3125 $c .= "/$_";
3126 next unless ($paths->{$c} &&
3127 ($paths->{$c}->{action} =~ /^[AR]$/));
3128 get_dir_check($self, $exists, $g, $r);
3129 }
3130 }
3131 values %$exists;
3132}
3133sub minimize_url {
3135 my ($self) = @_;
3136 return $self->{url} if ($self->{url} eq $self->{repos_root});
3137 my $url = $self->{repos_root};
3138 my @components = split(m!/!, $self->{svn_path});
3139 my $c = '';
3140 do {
3141 $url .= "/$c" if length $c;
3142 eval { (ref $self)->new($url)->get_latest_revnum };
3143 } while ($@ && ($c = shift @components));
3144 $url;
3145}
3146sub can_do_switch {
3148 my $self = shift;
3149 unless (defined $can_do_switch) {
3150 my $pool = SVN::Pool->new;
3151 my $rep = eval {
3152 $self->do_switch(1, '', 0, $self->{url},
3153 SVN::Delta::Editor->new, $pool);
3154 };
3155 if ($@) {
3156 $can_do_switch = 0;
3157 } else {
3158 $rep->abort_report($pool);
3159 $can_do_switch = 1;
3160 }
3161 $pool->clear;
3162 }
3163 $can_do_switch;
3164}
3165sub skip_unknown_revs {
3167 my ($err) = @_;
3168 my $errno = $err->apr_err();
3169 # Maybe the branch we're tracking didn't
3170 # exist when the repo started, so it's
3171 # not an error if it doesn't, just continue
3172 #
3173 # Wonderfully consistent library, eh?
3174 # 160013 - svn:// and file://
3175 # 175002 - http(s)://
3176 # 175007 - http(s):// (this repo required authorization, too...)
3177 # More codes may be discovered later...
3178 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
3179 warn "W: Ignoring error from SVN, path probably ",
3180 "does not exist: ($errno): ",
3181 $err->expanded_message,"\n";
3182 return;
3183 }
3184 die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
3185}
3186# svn_log_changed_path_t objects passed to get_log are likely to be
3188# overwritten even if only the refs are copied to an external variable,
3189# so we should dup the structures in their entirety. Using an externally
3190# passed pool (instead of our temporary and quickly cleared pool in
3191# Git::SVN::Ra) does not help matters at all...
3192sub dup_changed_paths {
3193 my ($paths) = @_;
3194 return undef unless $paths;
3195 my %ret;
3196 foreach my $p (keys %$paths) {
3197 my $i = $paths->{$p};
3198 my %s = map { $_ => $i->$_ }
3199 qw/copyfrom_path copyfrom_rev action/;
3200 $ret{$p} = \%s;
3201 }
3202 \%ret;
3203}
3204package Git::SVN::Log;
3206use strict;
3207use warnings;
3208use POSIX qw/strftime/;
3209use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
3210 %rusers $show_commit $incremental/;
3211my $l_fmt;
3212sub cmt_showable {
3214 my ($c) = @_;
3215 return 1 if defined $c->{r};
3216 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
3217 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
3218 my @log = command(qw/cat-file commit/, $c->{c});
3219 shift @log while ($log[0] ne "\n");
3220 shift @log;
3221 @{$c->{l}} = grep !/^git-svn-id: /, @log;
3222 (undef, $c->{r}, undef) = ::extract_metadata(
3224 (grep(/^git-svn-id: /, @log))[-1]);
3225 }
3226 return defined $c->{r};
3227}
3228sub log_use_color {
3230 return 1 if $color;
3231 my ($dc, $dcvar);
3232 $dcvar = 'color.diff';
3233 $dc = `git-config --get $dcvar`;
3234 if ($dc eq '') {
3235 # nothing at all; fallback to "diff.color"
3236 $dcvar = 'diff.color';
3237 $dc = `git-config --get $dcvar`;
3238 }
3239 chomp($dc);
3240 if ($dc eq 'auto') {
3241 my $pc;
3242 $pc = `git-config --get color.pager`;
3243 if ($pc eq '') {
3244 # does not have it -- fallback to pager.color
3245 $pc = `git-config --bool --get pager.color`;
3246 }
3247 else {
3248 $pc = `git-config --bool --get color.pager`;
3249 if ($?) {
3250 $pc = 'false';
3251 }
3252 }
3253 chomp($pc);
3254 if (-t *STDOUT || (defined $pager && $pc eq 'true')) {
3255 return ($ENV{TERM} && $ENV{TERM} ne 'dumb');
3256 }
3257 return 0;
3258 }
3259 return 0 if $dc eq 'never';
3260 return 1 if $dc eq 'always';
3261 chomp($dc = `git-config --bool --get $dcvar`);
3262 return ($dc eq 'true');
3263}
3264sub git_svn_log_cmd {
3266 my ($r_min, $r_max, @args) = @_;
3267 my $head = 'HEAD';
3268 foreach my $x (@args) {
3269 last if $x eq '--';
3270 next unless ::verify_ref("$x^0");
3271 $head = $x;
3272 last;
3273 }
3274 my $url = (::working_head_info($head))[0];
3276 my $gs = Git::SVN->find_by_url($url) || Git::SVN->_new;
3277 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
3278 $gs->refname);
3279 push @cmd, '-r' unless $non_recursive;
3280 push @cmd, qw/--raw --name-status/ if $verbose;
3281 push @cmd, '--color' if log_use_color();
3282 return @cmd unless defined $r_max;
3283 if ($r_max == $r_min) {
3284 push @cmd, '--max-count=1';
3285 if (my $c = $gs->rev_db_get($r_max)) {
3286 push @cmd, $c;
3287 }
3288 } else {
3289 my ($c_min, $c_max);
3290 $c_max = $gs->rev_db_get($r_max);
3291 $c_min = $gs->rev_db_get($r_min);
3292 if (defined $c_min && defined $c_max) {
3293 if ($r_max > $r_max) {
3294 push @cmd, "$c_min..$c_max";
3295 } else {
3296 push @cmd, "$c_max..$c_min";
3297 }
3298 } elsif ($r_max > $r_min) {
3299 push @cmd, $c_max;
3300 } else {
3301 push @cmd, $c_min;
3302 }
3303 }
3304 return @cmd;
3305}
3306# adapted from pager.c
3308sub config_pager {
3309 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
3310 if (!defined $pager) {
3311 $pager = 'less';
3312 } elsif (length $pager == 0 || $pager eq 'cat') {
3313 $pager = undef;
3314 }
3315}
3316sub run_pager {
3318 return unless -t *STDOUT;
3319 pipe my $rfd, my $wfd or return;
3320 defined(my $pid = fork) or ::fatal "Can't fork: $!\n";
3321 if (!$pid) {
3322 open STDOUT, '>&', $wfd or
3323 ::fatal "Can't redirect to stdout: $!\n";
3324 return;
3325 }
3326 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!\n";
3327 $ENV{LESS} ||= 'FRSX';
3328 exec $pager or ::fatal "Can't run pager: $! ($pager)\n";
3329}
3330sub tz_to_s_offset {
3332 my ($tz) = @_;
3333 $tz =~ s/(\d\d)$//;
3334 return ($1 * 60) + ($tz * 3600);
3335}
3336sub get_author_info {
3338 my ($dest, $author, $t, $tz) = @_;
3339 $author =~ s/(?:^\s*|\s*$)//g;
3340 $dest->{a_raw} = $author;
3341 my $au;
3342 if ($::_authors) {
3343 $au = $rusers{$author} || undef;
3344 }
3345 if (!$au) {
3346 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
3347 }
3348 $dest->{t} = $t;
3349 $dest->{tz} = $tz;
3350 $dest->{a} = $au;
3351 # Date::Parse isn't in the standard Perl distro :(
3352 if ($tz =~ s/^\+//) {
3353 $t += tz_to_s_offset($tz);
3354 } elsif ($tz =~ s/^\-//) {
3355 $t -= tz_to_s_offset($tz);
3356 }
3357 $dest->{t_utc} = $t;
3358}
3359sub process_commit {
3361 my ($c, $r_min, $r_max, $defer) = @_;
3362 if (defined $r_min && defined $r_max) {
3363 if ($r_min == $c->{r} && $r_min == $r_max) {
3364 show_commit($c);
3365 return 0;
3366 }
3367 return 1 if $r_min == $r_max;
3368 if ($r_min < $r_max) {
3369 # we need to reverse the print order
3370 return 0 if (defined $limit && --$limit < 0);
3371 push @$defer, $c;
3372 return 1;
3373 }
3374 if ($r_min != $r_max) {
3375 return 1 if ($r_min < $c->{r});
3376 return 1 if ($r_max > $c->{r});
3377 }
3378 }
3379 return 0 if (defined $limit && --$limit < 0);
3380 show_commit($c);
3381 return 1;
3382}
3383sub show_commit {
3385 my $c = shift;
3386 if ($oneline) {
3387 my $x = "\n";
3388 if (my $l = $c->{l}) {
3389 while ($l->[0] =~ /^\s*$/) { shift @$l }
3390 $x = $l->[0];
3391 }
3392 $l_fmt ||= 'A' . length($c->{r});
3393 print 'r',pack($l_fmt, $c->{r}),' | ';
3394 print "$c->{c} | " if $show_commit;
3395 print $x;
3396 } else {
3397 show_commit_normal($c);
3398 }
3399}
3400sub show_commit_changed_paths {
3402 my ($c) = @_;
3403 return unless $c->{changed};
3404 print "Changed paths:\n", @{$c->{changed}};
3405}
3406sub show_commit_normal {
3408 my ($c) = @_;
3409 print '-' x72, "\nr$c->{r} | ";
3410 print "$c->{c} | " if $show_commit;
3411 print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
3412 localtime($c->{t_utc})), ' | ';
3413 my $nr_line = 0;
3414 if (my $l = $c->{l}) {
3416 while ($l->[$#$l] eq "\n" && $#$l > 0
3417 && $l->[($#$l - 1)] eq "\n") {
3418 pop @$l;
3419 }
3420 $nr_line = scalar @$l;
3421 if (!$nr_line) {
3422 print "1 line\n\n\n";
3423 } else {
3424 if ($nr_line == 1) {
3425 $nr_line = '1 line';
3426 } else {
3427 $nr_line .= ' lines';
3428 }
3429 print $nr_line, "\n";
3430 show_commit_changed_paths($c);
3431 print "\n";
3432 print $_ foreach @$l;
3433 }
3434 } else {
3435 print "1 line\n";
3436 show_commit_changed_paths($c);
3437 print "\n";
3438 }
3440 foreach my $x (qw/raw stat diff/) {
3441 if ($c->{$x}) {
3442 print "\n";
3443 print $_ foreach @{$c->{$x}}
3444 }
3445 }
3446}
3447sub cmd_show_log {
3449 my (@args) = @_;
3450 my ($r_min, $r_max);
3451 my $r_last = -1; # prevent dupes
3452 if (defined $TZ) {
3453 $ENV{TZ} = $TZ;
3454 } else {
3455 delete $ENV{TZ};
3456 }
3457 if (defined $::_revision) {
3458 if ($::_revision =~ /^(\d+):(\d+)$/) {
3459 ($r_min, $r_max) = ($1, $2);
3460 } elsif ($::_revision =~ /^\d+$/) {
3461 $r_min = $r_max = $::_revision;
3462 } else {
3463 ::fatal "-r$::_revision is not supported, use ",
3464 "standard \'git log\' arguments instead\n";
3465 }
3466 }
3467 config_pager();
3469 @args = (git_svn_log_cmd($r_min, $r_max, @args), @args);
3470 my $log = command_output_pipe(@args);
3471 run_pager();
3472 my (@k, $c, $d, $stat);
3473 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
3474 while (<$log>) {
3475 if (/^${esc_color}commit ($::sha1_short)/o) {
3476 my $cmt = $1;
3477 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
3478 $r_last = $c->{r};
3479 process_commit($c, $r_min, $r_max, \@k) or
3480 goto out;
3481 }
3482 $d = undef;
3483 $c = { c => $cmt };
3484 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
3485 get_author_info($c, $1, $2, $3);
3486 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
3487 # ignore
3488 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
3489 push @{$c->{raw}}, $_;
3490 } elsif (/^${esc_color}[ACRMDT]\t/) {
3491 # we could add $SVN->{svn_path} here, but that requires
3492 # remote access at the moment (repo_path_split)...
3493 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
3494 push @{$c->{changed}}, $_;
3495 } elsif (/^${esc_color}diff /o) {
3496 $d = 1;
3497 push @{$c->{diff}}, $_;
3498 } elsif ($d) {
3499 push @{$c->{diff}}, $_;
3500 } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
3501 $esc_color*[\+\-]*$esc_color$/x) {
3502 $stat = 1;
3503 push @{$c->{stat}}, $_;
3504 } elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
3505 push @{$c->{stat}}, $_;
3506 $stat = undef;
3507 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
3508 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
3509 } elsif (s/^${esc_color} //o) {
3510 push @{$c->{l}}, $_;
3511 }
3512 }
3513 if ($c && defined $c->{r} && $c->{r} != $r_last) {
3514 $r_last = $c->{r};
3515 process_commit($c, $r_min, $r_max, \@k);
3516 }
3517 if (@k) {
3518 my $swap = $r_max;
3519 $r_max = $r_min;
3520 $r_min = $swap;
3521 process_commit($_, $r_min, $r_max) foreach reverse @k;
3522 }
3523out:
3524 close $log;
3525 print '-' x72,"\n" unless $incremental || $oneline;
3526}
3527package Git::SVN::Migration;
3529# these version numbers do NOT correspond to actual version numbers
3530# of git nor git-svn. They are just relative.
3531#
3532# v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
3533#
3534# v1 layout: .git/$id/info/url, refs/remotes/$id
3535#
3536# v2 layout: .git/svn/$id/info/url, refs/remotes/$id
3537#
3538# v3 layout: .git/svn/$id, refs/remotes/$id
3539# - info/url may remain for backwards compatibility
3540# - this is what we migrate up to this layout automatically,
3541# - this will be used by git svn init on single branches
3542# v3.1 layout (auto migrated):
3543# - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
3544# for backwards compatibility
3545#
3546# v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
3547# - this is only created for newly multi-init-ed
3548# repositories. Similar in spirit to the
3549# --use-separate-remotes option in git-clone (now default)
3550# - we do not automatically migrate to this (following
3551# the example set by core git)
3552use strict;
3553use warnings;
3554use Carp qw/croak/;
3555use File::Path qw/mkpath/;
3556use File::Basename qw/dirname basename/;
3557use vars qw/$_minimize/;
3558sub migrate_from_v0 {
3560 my $git_dir = $ENV{GIT_DIR};
3561 return undef unless -d $git_dir;
3562 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3563 my $migrated = 0;
3564 while (<$fh>) {
3565 chomp;
3566 my ($id, $orig_ref) = ($_, $_);
3567 next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
3568 next unless -f "$git_dir/$id/info/url";
3569 my $new_ref = "refs/remotes/$id";
3570 if (::verify_ref("$new_ref^0")) {
3571 print STDERR "W: $orig_ref is probably an old ",
3572 "branch used by an ancient version of ",
3573 "git-svn.\n",
3574 "However, $new_ref also exists.\n",
3575 "We will not be able ",
3576 "to use this branch until this ",
3577 "ambiguity is resolved.\n";
3578 next;
3579 }
3580 print STDERR "Migrating from v0 layout...\n" if !$migrated;
3581 print STDERR "Renaming ref: $orig_ref => $new_ref\n";
3582 command_noisy('update-ref', $new_ref, $orig_ref);
3583 command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
3584 $migrated++;
3585 }
3586 command_close_pipe($fh, $ctx);
3587 print STDERR "Done migrating from v0 layout...\n" if $migrated;
3588 $migrated;
3589}
3590sub migrate_from_v1 {
3592 my $git_dir = $ENV{GIT_DIR};
3593 my $migrated = 0;
3594 return $migrated unless -d $git_dir;
3595 my $svn_dir = "$git_dir/svn";
3596 # just in case somebody used 'svn' as their $id at some point...
3598 return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
3599 print STDERR "Migrating from a git-svn v1 layout...\n";
3601 mkpath([$svn_dir]);
3602 print STDERR "Data from a previous version of git-svn exists, but\n\t",
3603 "$svn_dir\n\t(required for this version ",
3604 "($::VERSION) of git-svn) does not. exist\n";
3605 my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
3606 while (<$fh>) {
3607 my $x = $_;
3608 next unless $x =~ s#^refs/remotes/##;
3609 chomp $x;
3610 next unless -f "$git_dir/$x/info/url";
3611 my $u = eval { ::file_to_s("$git_dir/$x/info/url") };
3612 next unless $u;
3613 my $dn = dirname("$git_dir/svn/$x");
3614 mkpath([$dn]) unless -d $dn;
3615 if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
3616 mkpath(["$git_dir/svn/svn"]);
3617 print STDERR " - $git_dir/$x/info => ",
3618 "$git_dir/svn/$x/info\n";
3619 rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or
3620 croak "$!: $x";
3621 # don't worry too much about these, they probably
3622 # don't exist with repos this old (save for index,
3623 # and we can easily regenerate that)
3624 foreach my $f (qw/unhandled.log index .rev_db/) {
3625 rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f";
3626 }
3627 } else {
3628 print STDERR " - $git_dir/$x => $git_dir/svn/$x\n";
3629 rename "$git_dir/$x", "$git_dir/svn/$x" or
3630 croak "$!: $x";
3631 }
3632 $migrated++;
3633 }
3634 command_close_pipe($fh, $ctx);
3635 print STDERR "Done migrating from a git-svn v1 layout\n";
3636 $migrated;
3637}
3638sub read_old_urls {
3640 my ($l_map, $pfx, $path) = @_;
3641 my @dir;
3642 foreach (<$path/*>) {
3643 if (-r "$_/info/url") {
3644 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
3645 my $ref_id = $pfx . basename $_;
3646 my $url = ::file_to_s("$_/info/url");
3647 $l_map->{$ref_id} = $url;
3648 } elsif (-d $_) {
3649 push @dir, $_;
3650 }
3651 }
3652 foreach (@dir) {
3653 my $x = $_;
3654 $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o;
3655 read_old_urls($l_map, $x, $_);
3656 }
3657}
3658sub migrate_from_v2 {
3660 my @cfg = command(qw/config -l/);
3661 return if grep /^svn-remote\..+\.url=/, @cfg;
3662 my %l_map;
3663 read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn");
3664 my $migrated = 0;
3665 foreach my $ref_id (sort keys %l_map) {
3667 eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
3668 if ($@) {
3669 Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
3670 }
3671 $migrated++;
3672 }
3673 $migrated;
3674}
3675sub minimize_connections {
3677 my $r = Git::SVN::read_all_remotes();
3678 my $new_urls = {};
3679 my $root_repos = {};
3680 foreach my $repo_id (keys %$r) {
3681 my $url = $r->{$repo_id}->{url} or next;
3682 my $fetch = $r->{$repo_id}->{fetch} or next;
3683 my $ra = Git::SVN::Ra->new($url);
3684 # skip existing cases where we already connect to the root
3686 if (($ra->{url} eq $ra->{repos_root}) ||
3687 (Git::SVN::sanitize_remote_name($ra->{repos_root}) eq
3688 $repo_id)) {
3689 $root_repos->{$ra->{url}} = $repo_id;
3690 next;
3691 }
3692 my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
3694 my $root_path = $ra->{url};
3695 $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
3696 foreach my $path (keys %$fetch) {
3697 my $ref_id = $fetch->{$path};
3698 my $gs = Git::SVN->new($ref_id, $repo_id, $path);
3699 # make sure we can read when connecting to
3701 # a higher level of a repository
3702 my ($last_rev, undef) = $gs->last_rev_commit;
3703 if (!defined $last_rev) {
3704 $last_rev = eval {
3705 $root_ra->get_latest_revnum;
3706 };
3707 next if $@;
3708 }
3709 my $new = $root_path;
3710 $new .= length $path ? "/$path" : '';
3711 eval {
3712 $root_ra->get_log([$new], $last_rev, $last_rev,
3713 0, 0, 1, sub { });
3714 };
3715 next if $@;
3716 $new_urls->{$ra->{repos_root}}->{$new} =
3717 { ref_id => $ref_id,
3718 old_repo_id => $repo_id,
3719 old_path => $path };
3720 }
3721 }
3722 my @emptied;
3724 foreach my $url (keys %$new_urls) {
3725 # see if we can re-use an existing [svn-remote "repo_id"]
3726 # instead of creating a(n ugly) new section:
3727 my $repo_id = $root_repos->{$url} ||
3728 Git::SVN::sanitize_remote_name($url);
3729 my $fetch = $new_urls->{$url};
3731 foreach my $path (keys %$fetch) {
3732 my $x = $fetch->{$path};
3733 Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
3734 my $pfx = "svn-remote.$x->{old_repo_id}";
3735 my $old_fetch = quotemeta("$x->{old_path}:".
3737 "refs/remotes/$x->{ref_id}");
3738 command_noisy(qw/config --unset/,
3739 "$pfx.fetch", '^'. $old_fetch . '$');
3740 delete $r->{$x->{old_repo_id}}->
3741 {fetch}->{$x->{old_path}};
3742 if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
3743 command_noisy(qw/config --unset/,
3744 "$pfx.url");
3745 push @emptied, $x->{old_repo_id}
3746 }
3747 }
3748 }
3749 if (@emptied) {
3750 my $file = $ENV{GIT_CONFIG} || $ENV{GIT_CONFIG_LOCAL} ||
3751 "$ENV{GIT_DIR}/config";
3752 print STDERR <<EOF;
3753The following [svn-remote] sections in your config file ($file) are empty
3754and can be safely removed:
3755EOF
3756 print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
3757 }
3758}
3759sub migration_check {
3761 migrate_from_v0();
3762 migrate_from_v1();
3763 migrate_from_v2();
3764 minimize_connections() if $_minimize;
3765}
3766package Git::IndexInfo;
3768use strict;
3769use warnings;
3770use Git qw/command_input_pipe command_close_pipe/;
3771sub new {
3773 my ($class) = @_;
3774 my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
3775 bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
3776}
3777sub remove {
3779 my ($self, $path) = @_;
3780 if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
3781 return ++$self->{nr};
3782 }
3783 undef;
3784}
3785sub update {
3787 my ($self, $mode, $hash, $path) = @_;
3788 if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
3789 return ++$self->{nr};
3790 }
3791 undef;
3792}
3793sub DESTROY {
3795 my ($self) = @_;
3796 command_close_pipe($self->{gui}, $self->{ctx});
3797}
3798package Git::SVN::GlobSpec;
3800use strict;
3801use warnings;
3802sub new {
3804 my ($class, $glob) = @_;
3805 my $re = $glob;
3806 $re =~ s!/+$!!g; # no need for trailing slashes
3807 my $nr = ($re =~ s!^(.*)\*(.*)$!\(\[^/\]+\)!g);
3808 my ($left, $right) = ($1, $2);
3809 if ($nr > 1) {
3810 die "Only one '*' wildcard expansion ",
3811 "is supported (got $nr): '$glob'\n";
3812 } elsif ($nr == 0) {
3813 die "One '*' is needed for glob: '$glob'\n";
3814 }
3815 $re = quotemeta($left) . $re . quotemeta($right);
3816 if (length $left && !($left =~ s!/+$!!g)) {
3817 die "Missing trailing '/' on left side of: '$glob' ($left)\n";
3818 }
3819 if (length $right && !($right =~ s!^/+!!g)) {
3820 die "Missing leading '/' on right side of: '$glob' ($right)\n";
3821 }
3822 my $left_re = qr/^\/\Q$left\E(\/|$)/;
3823 bless { left => $left, right => $right, left_regex => $left_re,
3824 regex => qr/$re/, glob => $glob }, $class;
3825}
3826sub full_path {
3828 my ($self, $path) = @_;
3829 return (length $self->{left} ? "$self->{left}/" : '') .
3830 $path . (length $self->{right} ? "/$self->{right}" : '');
3831}
3832__END__
3834Data structures:
3836$remotes = { # returned by read_all_remotes()
3839 'svn' => {
3840 # svn-remote.svn.url=https://svn.musicpd.org
3841 url => 'https://svn.musicpd.org',
3842 # svn-remote.svn.fetch=mpd/trunk:trunk
3843 fetch => {
3844 'mpd/trunk' => 'trunk',
3845 },
3846 # svn-remote.svn.tags=mpd/tags/*:tags/*
3847 tags => {
3848 path => {
3849 left => 'mpd/tags',
3850 right => '',
3851 regex => qr!mpd/tags/([^/]+)$!,
3852 glob => 'tags/*',
3853 },
3854 ref => {
3855 left => 'tags',
3856 right => '',
3857 regex => qr!tags/([^/]+)$!,
3858 glob => 'tags/*',
3859 },
3860 }
3861 }
3862};
3863$log_entry hashref as returned by libsvn_log_entry()
3865{
3866 log => 'whitespace-formatted log entry
3867', # trailing newline is preserved
3868 revision => '8', # integer
3869 date => '2004-02-24T17:01:44.108345Z', # commit date
3870 author => 'committer name'
3871};
3872# this is generated by generate_diff();
3875@mods = array of diff-index line hashes, each element represents one line
3876 of diff-index output
3877diff-index line ($m hash)
3879{
3880 mode_a => first column of diff-index output, no leading ':',
3881 mode_b => second column of diff-index output,
3882 sha1_b => sha1sum of the final blob,
3883 chg => change type [MCRADT],
3884 file_a => original file name of a file (iff chg is 'C' or 'R')
3885 file_b => new/current file name of a file (any chg)
3886}
3887;
3888# retval of read_url_paths{,_all}();
3890$l_map = {
3891 # repository root url
3892 'https://svn.musicpd.org' => {
3893 # repository path # GIT_SVN_ID
3894 'mpd/trunk' => 'trunk',
3895 'mpd/tags/0.11.5' => 'tags/0.11.5',
3896 },
3897}
3898Notes:
3900 I don't trust the each() function on unless I created %hash myself
3901 because the internal iterator may not have started at base.