acc93b9c109d86f98341adfd4e1c3d17943c4041
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 $SVN_URL
8 $GIT_SVN_INDEX $GIT_SVN
9 $GIT_DIR $GIT_SVN_DIR $REVDB
10 $_follow_parent $sha1 $sha1_short $_revision
11 $_cp_remote $_upgrade $_rmdir $_q $_cp_similarity
12 $_find_copies_harder $_l/;
13$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
14$VERSION = '@@GIT_VERSION@@';
15use Cwd qw/abs_path/;
17$GIT_DIR = abs_path($ENV{GIT_DIR} || '.git');
18$ENV{GIT_DIR} = $GIT_DIR;
19my $LC_ALL = $ENV{LC_ALL};
21$Git::SVN::Log::TZ = $ENV{TZ};
22# make sure the svn binary gives consistent output between locales and TZs:
23$ENV{TZ} = 'UTC';
24$ENV{LC_ALL} = 'C';
25$| = 1; # unbuffer STDOUT
26# properties that we do not log:
28my %SKIP = ( 'svn:wc:ra_dav:version-url' => 1,
29 'svn:special' => 1,
30 'svn:executable' => 1,
31 'svn:entry:committed-rev' => 1,
32 'svn:entry:last-author' => 1,
33 'svn:entry:uuid' => 1,
34 'svn:entry:committed-date' => 1,
35);
36sub fatal (@) { print STDERR @_; exit 1 }
38require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
39require SVN::Ra;
40require SVN::Delta;
41if ($SVN::Core::VERSION lt '1.1.0') {
42 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)\n";
43}
44push @Git::SVN::Ra::ISA, 'SVN::Ra';
45push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
46push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
47use Carp qw/croak/;
48use IO::File qw//;
49use File::Basename qw/dirname basename/;
50use File::Path qw/mkpath/;
51use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
52use IPC::Open3;
53use Git;
54BEGIN {
56 my $s;
57 foreach (qw/command command_oneline command_noisy command_output_pipe
58 command_input_pipe command_close_pipe/) {
59 $s .= "*SVN::Git::Editor::$_ = *SVN::Git::Fetcher::$_ = ".
60 "*Git::SVN::Log::$_ = *Git::SVN::$_ = *$_ = *Git::$_; ";
61 }
62 eval $s;
63}
64my ($SVN);
66my $_optimize_commits = 1 unless $ENV{GIT_SVN_NO_OPTIMIZE_COMMITS};
68$sha1 = qr/[a-f\d]{40}/;
69$sha1_short = qr/[a-f\d]{4,40}/;
70my ($_stdin, $_help, $_edit,
71 $_repack, $_repack_nr, $_repack_flags,
72 $_message, $_file, $_no_metadata,
73 $_template, $_shared, $_no_default_regex, $_no_graft_copy,
74 $_version, $_upgrade, $_authors, $_branch_all_refs, @_opt_m,
75 $_merge, $_strategy, $_dry_run,
76 $_prefix);
77my (@_branch_from, %tree_map, %users);
78my @repo_path_split_cache;
79my %fc_opts = ( 'branch|b=s' => \@_branch_from,
81 'follow-parent|follow' => \$_follow_parent,
82 'branch-all-refs|B' => \$_branch_all_refs,
83 'authors-file|A=s' => \$_authors,
84 'repack:i' => \$_repack,
85 'no-metadata' => \$_no_metadata,
86 'quiet|q' => \$_q,
87 'username=s' => \$Git::SVN::Prompt::_username,
88 'config-dir=s' => \$Git::SVN::Ra::config_dir,
89 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
90 'repack-flags|repack-args|repack-opts=s' => \$_repack_flags);
91my ($_trunk, $_tags, $_branches);
93my %multi_opts = ( 'trunk|T=s' => \$_trunk,
94 'tags|t=s' => \$_tags,
95 'branches|b=s' => \$_branches );
96my %init_opts = ( 'template=s' => \$_template, 'shared' => \$_shared );
97my %cmt_opts = ( 'edit|e' => \$_edit,
98 'rmdir' => \$_rmdir,
99 'find-copies-harder' => \$_find_copies_harder,
100 'l=i' => \$_l,
101 'copy-similarity|C=i'=> \$_cp_similarity
102);
103my %cmd = (
105 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
106 { 'revision|r=s' => \$_revision, %fc_opts } ],
107 init => [ \&cmd_init, "Initialize a repo for tracking" .
108 " (requires URL argument)",
109 \%init_opts ],
110 dcommit => [ \&dcommit, 'Commit several diffs to merge with upstream',
111 { 'merge|m|M' => \$_merge,
112 'strategy|s=s' => \$_strategy,
113 'dry-run|n' => \$_dry_run,
114 %cmt_opts, %fc_opts } ],
115 'set-tree' => [ \&commit, "Set an SVN repository to a git tree-ish",
116 { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
117 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
118 { 'revision|r=i' => \$_revision } ],
119 rebuild => [ \&cmd_rebuild, "Rebuild git-svn metadata (after git clone)",
120 { 'copy-remote|remote=s' => \$_cp_remote,
121 'upgrade' => \$_upgrade } ],
122 'graft-branches' => [ \&graft_branches,
123 'Detect merges/branches from already imported history',
124 { 'merge-rx|m' => \@_opt_m,
125 'branch|b=s' => \@_branch_from,
126 'branch-all-refs|B' => \$_branch_all_refs,
127 'no-default-regex' => \$_no_default_regex,
128 'no-graft-copy' => \$_no_graft_copy } ],
129 'multi-init' => [ \&cmd_multi_init,
130 'Initialize multiple trees (like git-svnimport)',
131 { %multi_opts, %init_opts,
132 'revision|r=i' => \$_revision,
133 'username=s' => \$Git::SVN::Prompt::_username,
134 'config-dir=s' => \$Git::SVN::Ra::config_dir,
135 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
136 'prefix=s' => \$_prefix,
137 } ],
138 'multi-fetch' => [ \&multi_fetch,
139 'Fetch multiple trees (like git-svnimport)',
140 \%fc_opts ],
141 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
142 { 'limit=i' => \$Git::SVN::Log::limit,
143 'revision|r=s' => \$_revision,
144 'verbose|v' => \$Git::SVN::Log::verbose,
145 'incremental' => \$Git::SVN::Log::incremental,
146 'oneline' => \$Git::SVN::Log::oneline,
147 'show-commit' => \$Git::SVN::Log::show_commit,
148 'non-recursive' => \$Git::SVN::Log::non_recursive,
149 'authors-file|A=s' => \$_authors,
150 'color' => \$Git::SVN::Log::color,
151 'pager=s' => \$Git::SVN::Log::pager,
152 } ],
153 'commit-diff' => [ \&cmd_commit_diff,
154 'Commit a diff between two trees',
155 { 'message|m=s' => \$_message,
156 'file|F=s' => \$_file,
157 'revision|r=s' => \$_revision,
158 %cmt_opts } ],
159);
160my $cmd;
162for (my $i = 0; $i < @ARGV; $i++) {
163 if (defined $cmd{$ARGV[$i]}) {
164 $cmd = $ARGV[$i];
165 splice @ARGV, $i, 1;
166 last;
167 }
168};
169my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
171read_repo_config(\%opts);
173my $rv = GetOptions(%opts, 'help|H|h' => \$_help,
174 'version|V' => \$_version,
175 'id|i=s' => \$GIT_SVN);
176exit 1 if (!$rv && $cmd ne 'log');
177set_default_vals();
179usage(0) if $_help;
180version() if $_version;
181usage(1) unless defined $cmd;
182init_vars();
183load_authors() if $_authors;
184load_all_refs() if $_branch_all_refs;
185migration_check() unless $cmd =~ /^(?:init|rebuild|multi-init|commit-diff)$/;
186$cmd{$cmd}->[0]->(@ARGV);
187exit 0;
188####################### primary functions ######################
190sub usage {
191 my $exit = shift || 0;
192 my $fd = $exit ? \*STDERR : \*STDOUT;
193 print $fd <<"";
194git-svn - bidirectional operations between a single Subversion tree and git
195Usage: $0 <command> [options] [arguments]\n
196 print $fd "Available commands:\n" unless $cmd;
198 foreach (sort keys %cmd) {
200 next if $cmd && $cmd ne $_;
201 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
202 foreach (keys %{$cmd{$_}->[2]}) {
203 # prints out arguments as they should be passed:
204 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
205 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
206 "--$_" : "-$_" }
207 split /\|/,$_)," $x\n";
208 }
209 }
210 print $fd <<"";
211\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
212arbitrary identifier if you're tracking multiple SVN branches/repositories in
213one git repository and want to keep them separate. See git-svn(1) for more
214information.
215 exit $exit;
217}
218sub version {
220 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
221 exit 0;
222}
223sub cmd_rebuild {
225 my $url = shift;
226 my $gs = $url ? Git::SVN->init(undef, $url)
227 : eval { Git::SVN->new };
228 $gs ||= Git::SVN->_new;
229 if (!verify_ref($gs->refname.'^0')) {
230 $gs->copy_remote_ref;
231 }
232 if ($_upgrade) {
233 command_noisy('update-ref',$gs->refname, $gs->{id}.'-HEAD');
234 } else {
235 $gs->check_upgrade_needed;
236 }
237 my ($rev_list, $ctx) = command_output_pipe("rev-list", $gs->refname);
239 my $latest;
240 my $svn_uuid;
241 while (<$rev_list>) {
242 chomp;
243 my $c = $_;
244 fatal "Non-SHA1: $c\n" unless $c =~ /^$sha1$/o;
245 my ($url, $rev, $uuid) = cmt_metadata($c);
246 # ignore merges (from set-tree)
248 next if (!defined $rev || !$uuid);
249 # if we merged or otherwise started elsewhere, this is
251 # how we break out of it
252 if ((defined $svn_uuid && ($uuid ne $svn_uuid)) ||
253 ($gs->{url} && $url && ($url ne $gs->{url}))) {
254 next;
255 }
256 unless (defined $latest) {
258 if (!$gs->{url} && !$url) {
259 fatal "SVN repository location required\n";
260 }
261 $gs = Git::SVN->init(undef, $url);
262 $latest = $rev;
263 }
264 $gs->rev_db_set($rev, $c);
265 print "r$rev = $c\n";
266 }
267 command_close_pipe($rev_list, $ctx);
268}
269sub do_git_init_db {
271 unless (-d $ENV{GIT_DIR}) {
272 my @init_db = ('init');
273 push @init_db, "--template=$_template" if defined $_template;
274 push @init_db, "--shared" if defined $_shared;
275 command_noisy(@init_db);
276 }
277}
278sub cmd_init {
280 my $url = shift or die "SVN repository location required " .
281 "as a command-line argument\n";
282 if (my $repo_path = shift) {
283 unless (-d $repo_path) {
284 mkpath([$repo_path]);
285 }
286 chdir $repo_path or croak $!;
287 $ENV{GIT_DIR} = $repo_path . "/.git";
288 }
289 do_git_init_db();
290 Git::SVN->init(undef, $url);
292}
293sub cmd_fetch {
295 fetch_child_id($GIT_SVN, @_);
296}
297sub fetch {
299 check_upgrade_needed();
300 $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
301 my $ret = fetch_lib(@_);
302 if ($ret->{commit} && !verify_ref('refs/heads/master^0')) {
303 command_noisy(qw(update-ref refs/heads/master),$ret->{commit});
304 }
305 return $ret;
306}
307sub fetch_lib {
309 my (@parents) = @_;
310 $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
311 $SVN ||= Git::SVN::Ra->new($SVN_URL);
312 my ($last_rev, $last_commit) = svn_grab_base_rev();
313 my ($base, $head) = libsvn_parse_revision($last_rev);
314 if ($base > $head) {
315 return { revision => $last_rev, commit => $last_commit }
316 }
317 my $index = set_index($GIT_SVN_INDEX);
318 # limit ourselves and also fork() since get_log won't release memory
320 # after processing a revision and SVN stuff seems to leak
321 my $inc = 1000;
322 my ($min, $max) = ($base, $head < $base+$inc ? $head : $base+$inc);
323 if (defined $last_commit) {
324 unless (-e $GIT_SVN_INDEX) {
325 command_noisy('read-tree', $last_commit);
326 }
327 my $x = command_oneline('write-tree');
328 my ($y) = (command(qw/cat-file commit/, $last_commit)
329 =~ /^tree ($sha1)/m);
330 if ($y ne $x) {
331 unlink $GIT_SVN_INDEX or croak $!;
332 command_noisy('read-tree', $last_commit);
333 }
334 $x = command_oneline('write-tree');
335 if ($y ne $x) {
336 print STDERR "trees ($last_commit) $y != $x\n",
337 "Something is seriously wrong...\n";
338 }
339 }
340 while (1) {
341 # fork, because using SVN::Pool with get_log() still doesn't
342 # seem to help enough to keep memory usage down.
343 defined(my $pid = fork) or croak $!;
344 if (!$pid) {
345 $SVN::Error::handler = \&libsvn_skip_unknown_revs;
346 # Yes I'm perfectly aware that the fourth argument
348 # below is the limit revisions number. Unfortunately
349 # performance sucks with it enabled, so it's much
350 # faster to fetch revision ranges instead of relying
351 # on the limiter.
352 $SVN->dup->get_log([''], $min, $max, 0, 1, 1,
353 sub {
354 my $log_entry;
355 if ($last_commit) {
356 $log_entry = libsvn_fetch(
357 $last_commit, @_);
358 $last_commit = git_commit(
359 $log_entry,
360 $last_commit,
361 @parents);
362 } else {
363 $log_entry = libsvn_new_tree(@_);
364 $last_commit = git_commit(
365 $log_entry, @parents);
366 }
367 });
368 exit 0;
369 }
370 waitpid $pid, 0;
371 croak $? if $?;
372 ($last_rev, $last_commit) = svn_grab_base_rev();
373 last if ($max >= $head);
374 $min = $max + 1;
375 $max += $inc;
376 $max = $head if ($max > $head);
377 $SVN = Git::SVN::Ra->new($SVN_URL);
378 }
379 restore_index($index);
380 return { revision => $last_rev, commit => $last_commit };
381}
382sub commit {
384 my (@commits) = @_;
385 check_upgrade_needed();
386 if ($_stdin || !@commits) {
387 print "Reading from stdin...\n";
388 @commits = ();
389 while (<STDIN>) {
390 if (/\b($sha1_short)\b/o) {
391 unshift @commits, $1;
392 }
393 }
394 }
395 my @revs;
396 foreach my $c (@commits) {
397 my @tmp = command('rev-parse',$c);
398 if (scalar @tmp == 1) {
399 push @revs, $tmp[0];
400 } elsif (scalar @tmp > 1) {
401 push @revs, reverse(command('rev-list',@tmp));
402 } else {
403 die "Failed to rev-parse $c\n";
404 }
405 }
406 commit_lib(@revs);
407 print "Done committing ",scalar @revs," revisions to SVN\n";
408}
409sub commit_lib {
411 my (@revs) = @_;
412 my ($r_last, $cmt_last) = svn_grab_base_rev();
413 defined $r_last or die "Must have an existing revision to commit\n";
414 my $fetched = fetch();
415 if ($r_last != $fetched->{revision}) {
416 print STDERR "There are new revisions that were fetched ",
417 "and need to be merged (or acknowledged) ",
418 "before committing.\n",
419 "last rev: $r_last\n",
420 " current: $fetched->{revision}\n";
421 exit 1;
422 }
423 my $commit_msg = "$GIT_SVN_DIR/.svn-commit.tmp.$$";
424 my $repo;
426 set_svn_commit_env();
427 foreach my $c (@revs) {
428 my $log_entry = get_commit_entry($c, $commit_msg);
429 # fork for each commit because there's a memory leak I
431 # can't track down... (it's probably in the SVN code)
432 defined(my $pid = open my $fh, '-|') or croak $!;
433 if (!$pid) {
434 my $pool = SVN::Pool->new;
435 my $ed = SVN::Git::Editor->new(
436 { r => $r_last,
437 ra => $SVN->dup,
438 svn_path => $SVN->{svn_path},
439 },
440 $SVN->get_commit_editor(
441 $log_entry->{log},
442 sub {
443 libsvn_commit_cb(
444 @_, $c,
445 $log_entry->{log},
446 $r_last,
447 $cmt_last)
448 }, $pool)
449 );
450 my $mods = $ed->apply_diff($cmt_last, $c);
451 if (@$mods == 0) {
452 print "No changes\nr$r_last = $cmt_last\n";
453 }
454 $pool->clear;
455 exit 0;
456 }
457 my ($r_new, $cmt_new, $no);
458 while (<$fh>) {
459 print $_;
460 chomp;
461 if (/^r(\d+) = ($sha1)$/o) {
462 ($r_new, $cmt_new) = ($1, $2);
463 } elsif ($_ eq 'No changes') {
464 $no = 1;
465 }
466 }
467 close $fh or exit 1;
468 if (! defined $r_new && ! defined $cmt_new) {
469 unless ($no) {
470 die "Failed to parse revision information\n";
471 }
472 } else {
473 ($r_last, $cmt_last) = ($r_new, $cmt_new);
474 }
475 }
476 $ENV{LC_ALL} = 'C';
477 unlink $commit_msg;
478}
479sub dcommit {
481 my $head = shift || 'HEAD';
482 my $gs = "refs/remotes/$GIT_SVN";
483 my @refs = command(qw/rev-list --no-merges/, "$gs..$head");
484 my $last_rev;
485 foreach my $d (reverse @refs) {
486 if (!verify_ref("$d~1")) {
487 die "Commit $d\n",
488 "has no parent commit, and therefore ",
489 "nothing to diff against.\n",
490 "You should be working from a repository ",
491 "originally created by git-svn\n";
492 }
493 unless (defined $last_rev) {
494 (undef, $last_rev, undef) = cmt_metadata("$d~1");
495 unless (defined $last_rev) {
496 die "Unable to extract revision information ",
497 "from commit $d~1\n";
498 }
499 }
500 if ($_dry_run) {
501 print "diff-tree $d~1 $d\n";
502 } else {
503 if (my $r = commit_diff("$d~1", $d, undef, $last_rev)) {
504 $last_rev = $r;
505 } # else: no changes, same $last_rev
506 }
507 }
508 return if $_dry_run;
509 fetch();
510 my @diff = command('diff-tree', 'HEAD', $gs, '--');
511 my @finish;
512 if (@diff) {
513 @finish = qw/rebase/;
514 push @finish, qw/--merge/ if $_merge;
515 push @finish, "--strategy=$_strategy" if $_strategy;
516 print STDERR "W: HEAD and $gs differ, using @finish:\n", @diff;
517 } else {
518 print "No changes between current HEAD and $gs\n",
519 "Resetting to the latest $gs\n";
520 @finish = qw/reset --mixed/;
521 }
522 command_noisy(@finish, $gs);
523}
524sub cmd_show_ignore {
526 my $gs = Git::SVN->new;
527 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
528 $gs->traverse_ignore(\*STDOUT, '', $r);
529}
530sub graft_branches {
532 my $gr_file = "$GIT_DIR/info/grafts";
533 my ($grafts, $comments) = read_grafts($gr_file);
534 my $gr_sha1;
535 if (%$grafts) {
537 # temporarily disable our grafts file to make this idempotent
538 chomp($gr_sha1 = command(qw/hash-object -w/,$gr_file));
539 rename $gr_file, "$gr_file~$gr_sha1" or croak $!;
540 }
541 my $l_map = read_url_paths();
543 my @re = map { qr/$_/is } @_opt_m if @_opt_m;
544 unless ($_no_default_regex) {
545 push @re, (qr/\b(?:merge|merging|merged)\s+with\s+([\w\.\-]+)/i,
546 qr/\b(?:merge|merging|merged)\s+([\w\.\-]+)/i,
547 qr/\b(?:from|of)\s+([\w\.\-]+)/i );
548 }
549 foreach my $u (keys %$l_map) {
550 if (@re) {
551 foreach my $p (keys %{$l_map->{$u}}) {
552 graft_merge_msg($grafts,$l_map,$u,$p,@re);
553 }
554 }
555 unless ($_no_graft_copy) {
556 graft_file_copy_lib($grafts,$l_map,$u);
557 }
558 }
559 graft_tree_joins($grafts);
560 write_grafts($grafts, $comments, $gr_file);
562 unlink "$gr_file~$gr_sha1" if $gr_sha1;
563}
564sub cmd_multi_init {
566 my $url = shift;
567 unless (defined $_trunk || defined $_branches || defined $_tags) {
568 usage(1);
569 }
570 do_git_init_db();
571 $_prefix = '' unless defined $_prefix;
572 if (defined $_trunk) {
573 my $gs_trunk = eval { Git::SVN->new($_prefix . 'trunk') };
574 unless ($gs_trunk) {
575 my $trunk_url = complete_svn_url($url, $_trunk);
576 $gs_trunk = Git::SVN->init($_prefix . 'trunk',
577 $trunk_url);
578 command_noisy('config', 'svn.trunk', $trunk_url);
579 }
580 }
581 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
582 complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
583 complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
584}
585sub multi_fetch {
587 # try to do trunk first, since branches/tags
588 # may be descended from it.
589 if (-e "$GIT_DIR/svn/trunk/info/url") {
590 fetch_child_id('trunk', @_);
591 }
592 rec_fetch('', "$GIT_DIR/svn", @_);
593}
594# this command is special because it requires no metadata
596sub cmd_commit_diff {
597 my ($ta, $tb, $url) = @_;
598 my $usage = "Usage: $0 commit-diff -r<revision> ".
599 "<tree-ish> <tree-ish> [<URL>]\n";
600 fatal($usage) if (!defined $ta || !defined $tb);
601 if (!defined $url) {
602 my $gs = eval { Git::SVN->new };
603 if (!$gs) {
604 fatal("Needed URL or usable git-svn --id in ",
605 "the command-line\n", $usage);
606 }
607 $url = $gs->{url};
608 }
609 unless (defined $_revision) {
610 fatal("-r|--revision is a required argument\n", $usage);
611 }
612 if (defined $_message && defined $_file) {
613 fatal("Both --message/-m and --file/-F specified ",
614 "for the commit message.\n",
615 "I have no idea what you mean\n");
616 }
617 if (defined $_file) {
618 $_message = file_to_s($_file);
619 } else {
620 $_message ||= get_commit_entry($tb)->{log};
621 }
622 my $ra ||= Git::SVN::Ra->new($url);
623 my $r = $_revision;
624 if ($r eq 'HEAD') {
625 $r = $ra->get_latest_revnum;
626 } elsif ($r !~ /^\d+$/) {
627 die "revision argument: $r not understood by git-svn\n";
628 }
629 my $pool = SVN::Pool->new;
630 my %ed_opts = ( r => $r,
631 ra => $ra->dup,
632 svn_path => $ra->{svn_path} );
633 my $ed = SVN::Git::Editor->new(\%ed_opts,
634 $ra->get_commit_editor($_message,
635 sub { print "Committed r$_[0]\n" }),
636 $pool);
637 my $mods = $ed->apply_diff($ta, $tb);
638 if (@$mods == 0) {
639 print "No changes\n$ta == $tb\n";
640 }
641 $pool->clear;
642}
643sub commit_diff_usage {
645 print STDERR "Usage: $0 commit-diff <tree-ish> <tree-ish> [<URL>]\n";
646 exit 1
647}
648sub commit_diff {
650 my $ta = shift or commit_diff_usage();
651 my $tb = shift or commit_diff_usage();
652 if (!eval { $SVN_URL = shift || file_to_s("$GIT_SVN_DIR/info/url") }) {
653 print STDERR "Needed URL or usable git-svn id command-line\n";
654 commit_diff_usage();
655 }
656 my $r = shift;
657 unless (defined $r) {
658 if (defined $_revision) {
659 $r = $_revision
660 } else {
661 die "-r|--revision is a required argument\n";
662 }
663 }
664 if (defined $_message && defined $_file) {
665 print STDERR "Both --message/-m and --file/-F specified ",
666 "for the commit message.\n",
667 "I have no idea what you mean\n";
668 exit 1;
669 }
670 if (defined $_file) {
671 $_message = file_to_s($_file);
672 } else {
673 $_message ||= get_commit_entry($tb,
674 "$GIT_DIR/.svn-commit.tmp.$$")->{log};
675 }
676 $SVN ||= Git::SVN::Ra->new($SVN_URL);
677 if ($r eq 'HEAD') {
678 $r = $SVN->get_latest_revnum;
679 } elsif ($r !~ /^\d+$/) {
680 die "revision argument: $r not understood by git-svn\n";
681 }
682 my $rev_committed;
683 my $pool = SVN::Pool->new;
684 my $ed = SVN::Git::Editor->new({ r => $r,
685 ra => $SVN->dup,
686 svn_path => $SVN->{svn_path}
687 },
688 $SVN->get_commit_editor($_message,
689 sub {
690 $rev_committed = $_[0];
691 print "Committed $_[0]\n";
692 },
693 $pool)
694 );
695 eval {
696 my $mods = $ed->apply_diff($ta, $tb);
697 if (@$mods == 0) {
698 print "No changes\n$ta == $tb\n";
699 }
700 };
701 $pool->clear;
702 fatal "$@\n" if $@;
703 $_message = $_file = undef;
704 return $rev_committed;
705}
706########################### utility functions #########################
708sub fetch_child_id {
710 my $id = shift;
711 print "Fetching $id\n";
712 my $ref = "$GIT_DIR/refs/remotes/$id";
713 defined(my $pid = open my $fh, '-|') or croak $!;
714 if (!$pid) {
715 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
716 init_vars();
717 fetch(@_);
718 exit 0;
719 }
720 while (<$fh>) {
721 print $_;
722 check_repack() if (/^r\d+ = $sha1/o);
723 }
724 close $fh or croak $?;
725}
726sub rec_fetch {
728 my ($pfx, $p, @args) = @_;
729 my @dir;
730 foreach (sort <$p/*>) {
731 if (-r "$_/info/url") {
732 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
733 my $id = $pfx . basename $_;
734 next if $id eq 'trunk';
735 fetch_child_id($id, @args);
736 } elsif (-d $_) {
737 push @dir, $_;
738 }
739 }
740 foreach (@dir) {
741 my $x = $_;
742 $x =~ s!^\Q$GIT_DIR\E/svn/!!;
743 rec_fetch($x, $_);
744 }
745}
746sub complete_svn_url {
748 my ($url, $path) = @_;
749 $path =~ s#/+$##;
750 $url =~ s#/+$## if $url;
751 if ($path !~ m#^[a-z\+]+://#) {
752 $path = '/' . $path if ($path !~ m#^/#);
753 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
754 fatal("E: '$path' is not a complete URL ",
755 "and a separate URL is not specified\n");
756 }
757 $path = $url . $path;
758 }
759 return $path;
760}
761sub complete_url_ls_init {
763 my ($ra, $path, $switch, $pfx) = @_;
764 unless ($path) {
765 print STDERR "W: $switch not specified\n";
766 return;
767 }
768 $path =~ s#/+$##;
769 if ($path =~ m#^[a-z\+]+://#) {
770 $ra = Git::SVN::Ra->new($path);
771 $path = '';
772 } else {
773 $path =~ s#^/+##;
774 unless ($ra) {
775 fatal("E: '$path' is not a complete URL ",
776 "and a separate URL is not specified\n");
777 }
778 }
779 my $r = defined $_revision ? $_revision : $ra->get_latest_revnum;
780 my ($dirent, undef, undef) = $ra->get_dir($path, $r);
781 my $url = $ra->{url} . (length $path ? "/$path" : '');
782 foreach my $d (sort keys %$dirent) {
783 next if ($dirent->{$d}->kind != $SVN::Node::dir);
784 my $u = "$url/$d";
785 my $id = "$pfx$d";
786 my $gs = eval { Git::SVN->new($id) };
787 # don't try to init already existing refs
788 unless ($gs) {
789 print "init $u => $id\n";
790 Git::SVN->init($id, $u);
791 }
792 }
793 my ($n) = ($switch =~ /^--(\w+)/);
794 command_noisy('config', "svn.$n", $url);
795}
796sub common_prefix {
798 my $paths = shift;
799 my %common;
800 foreach (@$paths) {
801 my @tmp = split m#/#, $_;
802 my $p = '';
803 while (my $x = shift @tmp) {
804 $p .= "/$x";
805 $common{$p} ||= 0;
806 $common{$p}++;
807 }
808 }
809 foreach (sort {length $b <=> length $a} keys %common) {
810 if ($common{$_} == @$paths) {
811 return $_;
812 }
813 }
814 return '';
815}
816# grafts set here are 'stronger' in that they're based on actual tree
818# matches, and won't be deleted from merge-base checking in write_grafts()
819sub graft_tree_joins {
820 my $grafts = shift;
821 map_tree_joins() if (@_branch_from && !%tree_map);
822 return unless %tree_map;
823 git_svn_each(sub {
825 my $i = shift;
826 my @args = (qw/rev-list --pretty=raw/, "refs/remotes/$i");
827 my ($fh, $ctx) = command_output_pipe(@args);
828 while (<$fh>) {
829 next unless /^commit ($sha1)$/o;
830 my $c = $1;
831 my ($t) = (<$fh> =~ /^tree ($sha1)$/o);
832 next unless $tree_map{$t};
833 my $l;
835 do {
836 $l = readline $fh;
837 } until ($l =~ /^committer (?:.+) (\d+) ([\-\+]?\d+)$/);
838 my ($s, $tz) = ($1, $2);
840 if ($tz =~ s/^\+//) {
841 $s += tz_to_s_offset($tz);
842 } elsif ($tz =~ s/^\-//) {
843 $s -= tz_to_s_offset($tz);
844 }
845 my ($url_a, $r_a, $uuid_a) = cmt_metadata($c);
847 foreach my $p (@{$tree_map{$t}}) {
849 next if $p eq $c;
850 my $mb = eval { command('merge-base', $c, $p) };
851 next unless ($@ || $?);
852 if (defined $r_a) {
853 # see if SVN says it's a relative
854 my ($url_b, $r_b, $uuid_b) =
855 cmt_metadata($p);
856 next if (defined $url_b &&
857 defined $url_a &&
858 ($url_a eq $url_b) &&
859 ($uuid_a eq $uuid_b));
860 if ($uuid_a eq $uuid_b) {
861 if ($r_b < $r_a) {
862 $grafts->{$c}->{$p} = 2;
863 next;
864 } elsif ($r_b > $r_a) {
865 $grafts->{$p}->{$c} = 2;
866 next;
867 }
868 }
869 }
870 my $ct = get_commit_time($p);
871 if ($ct < $s) {
872 $grafts->{$c}->{$p} = 2;
873 } elsif ($ct > $s) {
874 $grafts->{$p}->{$c} = 2;
875 }
876 # what should we do when $ct == $s ?
877 }
878 }
879 command_close_pipe($fh, $ctx);
880 });
881}
882sub graft_file_copy_lib {
884 my ($grafts, $l_map, $u) = @_;
885 my $tree_paths = $l_map->{$u};
886 my $pfx = common_prefix([keys %$tree_paths]);
887 my ($repo, $path) = repo_path_split($u.$pfx);
888 $SVN = Git::SVN::Ra->new($repo);
889 my ($base, $head) = libsvn_parse_revision();
891 my $inc = 1000;
892 my ($min, $max) = ($base, $head < $base+$inc ? $head : $base+$inc);
893 my $eh = $SVN::Error::handler;
894 $SVN::Error::handler = \&libsvn_skip_unknown_revs;
895 while (1) {
896 $SVN->dup->get_log([$path], $min, $max, 0, 2, 1,
897 sub {
898 libsvn_graft_file_copies($grafts, $tree_paths,
899 $path, @_);
900 });
901 last if ($max >= $head);
902 $min = $max + 1;
903 $max += $inc;
904 $max = $head if ($max > $head);
905 }
906 $SVN::Error::handler = $eh;
907}
908sub process_merge_msg_matches {
910 my ($grafts, $l_map, $u, $p, $c, @matches) = @_;
911 my (@strong, @weak);
912 foreach (@matches) {
913 # merging with ourselves is not interesting
914 next if $_ eq $p;
915 if ($l_map->{$u}->{$_}) {
916 push @strong, $_;
917 } else {
918 push @weak, $_;
919 }
920 }
921 foreach my $w (@weak) {
922 last if @strong;
923 # no exact match, use branch name as regexp.
924 my $re = qr/\Q$w\E/i;
925 foreach (keys %{$l_map->{$u}}) {
926 if (/$re/) {
927 push @strong, $l_map->{$u}->{$_};
928 last;
929 }
930 }
931 last if @strong;
932 $w = basename($w);
933 $re = qr/\Q$w\E/i;
934 foreach (keys %{$l_map->{$u}}) {
935 if (/$re/) {
936 push @strong, $l_map->{$u}->{$_};
937 last;
938 }
939 }
940 }
941 my ($rev) = ($c->{m} =~ /^git-svn-id:\s(?:\S+?)\@(\d+)
942 \s(?:[a-f\d\-]+)$/xsm);
943 unless (defined $rev) {
944 ($rev) = ($c->{m} =~/^git-svn-id:\s(\d+)
945 \@(?:[a-f\d\-]+)/xsm);
946 return unless defined $rev;
947 }
948 foreach my $m (@strong) {
949 my ($r0, $s0) = find_rev_before($rev, $m, 1);
950 $grafts->{$c->{c}}->{$s0} = 1 if defined $s0;
951 }
952}
953sub graft_merge_msg {
955 my ($grafts, $l_map, $u, $p, @re) = @_;
956 my $x = $l_map->{$u}->{$p};
958 my $rl = rev_list_raw("refs/remotes/$x");
959 while (my $c = next_rev_list_entry($rl)) {
960 foreach my $re (@re) {
961 my (@br) = ($c->{m} =~ /$re/g);
962 next unless @br;
963 process_merge_msg_matches($grafts,$l_map,$u,$p,$c,@br);
964 }
965 }
966}
967sub verify_ref {
969 my ($ref) = @_;
970 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
971 { STDERR => 0 }); };
972}
973sub repo_path_split {
975 my $full_url = shift;
976 $full_url =~ s#/+$##;
977 foreach (@repo_path_split_cache) {
979 if ($full_url =~ s#$_##) {
980 my $u = $1;
981 $full_url =~ s#^/+##;
982 return ($u, $full_url);
983 }
984 }
985 my $tmp = Git::SVN::Ra->new($full_url);
986 return ($tmp->{repos_root}, $tmp->{svn_path});
987}
988sub setup_git_svn {
990 defined $SVN_URL or croak "SVN repository location required\n";
991 unless (-d $GIT_DIR) {
992 croak "GIT_DIR=$GIT_DIR does not exist!\n";
993 }
994 mkpath([$GIT_SVN_DIR]);
995 mkpath(["$GIT_SVN_DIR/info"]);
996 open my $fh, '>>',$REVDB or croak $!;
997 close $fh;
998 s_to_file($SVN_URL,"$GIT_SVN_DIR/info/url");
999}
1001sub get_tree_from_treeish {
1003 my ($treeish) = @_;
1004 # $treeish can be a symbolic ref, too:
1005 my $type = command_oneline(qw/cat-file -t/, $treeish);
1006 my $expected;
1007 while ($type eq 'tag') {
1008 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1009 }
1010 if ($type eq 'commit') {
1011 $expected = (grep /^tree /, command(qw/cat-file commit/,
1012 $treeish))[0];
1013 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1014 die "Unable to get tree from $treeish\n" unless $expected;
1015 } elsif ($type eq 'tree') {
1016 $expected = $treeish;
1017 } else {
1018 die "$treeish is a $type, expected tree, tag or commit\n";
1019 }
1020 return $expected;
1021}
1022sub get_diff {
1024 my ($from, $treeish) = @_;
1025 print "diff-tree $from $treeish\n";
1026 my @diff_tree = qw(diff-tree -z -r);
1027 if ($_cp_similarity) {
1028 push @diff_tree, "-C$_cp_similarity";
1029 } else {
1030 push @diff_tree, '-C';
1031 }
1032 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
1033 push @diff_tree, "-l$_l" if defined $_l;
1034 push @diff_tree, $from, $treeish;
1035 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
1036 local $/ = "\0";
1037 my $state = 'meta';
1038 my @mods;
1039 while (<$diff_fh>) {
1040 chomp $_; # this gets rid of the trailing "\0"
1041 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
1042 $sha1\s($sha1)\s([MTCRAD])\d*$/xo) {
1043 push @mods, { mode_a => $1, mode_b => $2,
1044 sha1_b => $3, chg => $4 };
1045 if ($4 =~ /^(?:C|R)$/) {
1046 $state = 'file_a';
1047 } else {
1048 $state = 'file_b';
1049 }
1050 } elsif ($state eq 'file_a') {
1051 my $x = $mods[$#mods] or croak "Empty array\n";
1052 if ($x->{chg} !~ /^(?:C|R)$/) {
1053 croak "Error parsing $_, $x->{chg}\n";
1054 }
1055 $x->{file_a} = $_;
1056 $state = 'file_b';
1057 } elsif ($state eq 'file_b') {
1058 my $x = $mods[$#mods] or croak "Empty array\n";
1059 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
1060 croak "Error parsing $_, $x->{chg}\n";
1061 }
1062 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
1063 croak "Error parsing $_, $x->{chg}\n";
1064 }
1065 $x->{file_b} = $_;
1066 $state = 'meta';
1067 } else {
1068 croak "Error parsing $_\n";
1069 }
1070 }
1071 command_close_pipe($diff_fh, $ctx);
1072 return \@mods;
1073}
1074sub get_commit_entry {
1076 my ($treeish) = shift;
1077 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1078 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1079 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1080 open my $log_fh, '>', $commit_editmsg or croak $!;
1081 my $type = command_oneline(qw/cat-file -t/, $treeish);
1083 if ($type eq 'commit' || $type eq 'tag') {
1084 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1085 $type, $treeish);
1086 my $in_msg = 0;
1087 while (<$msg_fh>) {
1088 if (!$in_msg) {
1089 $in_msg = 1 if (/^\s*$/);
1090 } elsif (/^git-svn-id: /) {
1091 # skip this for now, we regenerate the
1092 # correct one on re-fetch anyways
1093 # TODO: set *:merge properties or like...
1094 } else {
1095 print $log_fh $_ or croak $!;
1096 }
1097 }
1098 command_close_pipe($msg_fh, $ctx);
1099 }
1100 close $log_fh or croak $!;
1101 if ($_edit || ($type eq 'tree')) {
1103 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1104 # TODO: strip out spaces, comments, like git-commit.sh
1105 system($editor, $commit_editmsg);
1106 }
1107 rename $commit_editmsg, $commit_msg or croak $!;
1108 open $log_fh, '<', $commit_msg or croak $!;
1109 { local $/; chomp($log_entry{log} = <$log_fh>); }
1110 close $log_fh or croak $!;
1111 unlink $commit_msg;
1112 \%log_entry;
1113}
1114sub set_svn_commit_env {
1116 if (defined $LC_ALL) {
1117 $ENV{LC_ALL} = $LC_ALL;
1118 } else {
1119 delete $ENV{LC_ALL};
1120 }
1121}
1122sub rev_list_raw {
1124 my ($fh, $c) = command_output_pipe(qw/rev-list --pretty=raw/, @_);
1125 return { fh => $fh, ctx => $c, t => { } };
1126}
1127sub next_rev_list_entry {
1129 my $rl = shift;
1130 my $fh = $rl->{fh};
1131 my $x = $rl->{t};
1132 while (<$fh>) {
1133 if (/^commit ($sha1)$/o) {
1134 if ($x->{c}) {
1135 $rl->{t} = { c => $1 };
1136 return $x;
1137 } else {
1138 $x->{c} = $1;
1139 }
1140 } elsif (/^parent ($sha1)$/o) {
1141 $x->{p}->{$1} = 1;
1142 } elsif (s/^ //) {
1143 $x->{m} ||= '';
1144 $x->{m} .= $_;
1145 }
1146 }
1147 command_close_pipe($fh, $rl->{ctx});
1148 return ($x != $rl->{t}) ? $x : undef;
1149}
1150sub s_to_file {
1152 my ($str, $file, $mode) = @_;
1153 open my $fd,'>',$file or croak $!;
1154 print $fd $str,"\n" or croak $!;
1155 close $fd or croak $!;
1156 chmod ($mode &~ umask, $file) if (defined $mode);
1157}
1158sub file_to_s {
1160 my $file = shift;
1161 open my $fd,'<',$file or croak "$!: file: $file\n";
1162 local $/;
1163 my $ret = <$fd>;
1164 close $fd or croak $!;
1165 $ret =~ s/\s*$//s;
1166 return $ret;
1167}
1168sub assert_revision_unknown {
1170 my $r = shift;
1171 if (my $c = revdb_get($REVDB, $r)) {
1172 croak "$r = $c already exists! Why are we refetching it?";
1173 }
1174}
1175sub git_commit {
1177 my ($log_entry, @parents) = @_;
1178 assert_revision_unknown($log_entry->{revision});
1179 map_tree_joins() if (@_branch_from && !%tree_map);
1180 my (@tmp_parents, @exec_parents, %seen_parent);
1182 if (my $lparents = $log_entry->{parents}) {
1183 @tmp_parents = @$lparents
1184 }
1185 # commit parents can be conditionally bound to a particular
1186 # svn revision via: "svn_revno=commit_sha1", filter them out here:
1187 foreach my $p (@parents) {
1188 next unless defined $p;
1189 if ($p =~ /^(\d+)=($sha1_short)$/o) {
1190 if ($1 == $log_entry->{revision}) {
1191 push @tmp_parents, $2;
1192 }
1193 } else {
1194 push @tmp_parents, $p if $p =~ /$sha1_short/o;
1195 }
1196 }
1197 my $tree = $log_entry->{tree};
1198 if (!defined $tree) {
1199 my $index = set_index($GIT_SVN_INDEX);
1200 $tree = command_oneline('write-tree');
1201 croak $? if $?;
1202 restore_index($index);
1203 }
1204 # just in case we clobber the existing ref, we still want that ref
1205 # as our parent:
1206 if (my $cur = verify_ref("refs/remotes/$GIT_SVN^0")) {
1207 chomp $cur;
1208 push @tmp_parents, $cur;
1209 }
1210 if (exists $tree_map{$tree}) {
1212 foreach my $p (@{$tree_map{$tree}}) {
1213 my $skip;
1214 foreach (@tmp_parents) {
1215 # see if a common parent is found
1216 my $mb = eval { command('merge-base', $_, $p) };
1217 next if ($@ || $?);
1218 $skip = 1;
1219 last;
1220 }
1221 next if $skip;
1222 my ($url_p, $r_p, $uuid_p) = cmt_metadata($p);
1223 next if (($SVN->uuid eq $uuid_p) &&
1224 ($log_entry->{revision} > $r_p));
1225 next if (defined $url_p && defined $SVN_URL &&
1226 ($SVN->uuid eq $uuid_p) &&
1227 ($url_p eq $SVN_URL));
1228 push @tmp_parents, $p;
1229 }
1230 }
1231 foreach (@tmp_parents) {
1232 next if $seen_parent{$_};
1233 $seen_parent{$_} = 1;
1234 push @exec_parents, $_;
1235 # MAXPARENT is defined to 16 in commit-tree.c:
1236 last if @exec_parents > 16;
1237 }
1238 set_commit_env($log_entry);
1240 my @exec = ('git-commit-tree', $tree);
1241 push @exec, '-p', $_ foreach @exec_parents;
1242 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1243 or croak $!;
1244 print $msg_fh $log_entry->{log} or croak $!;
1245 unless ($_no_metadata) {
1246 print $msg_fh "\ngit-svn-id: $SVN_URL\@$log_entry->{revision} ",
1247 $SVN->uuid,"\n" or croak $!;
1248 }
1249 $msg_fh->flush == 0 or croak $!;
1250 close $msg_fh or croak $!;
1251 chomp(my $commit = do { local $/; <$out_fh> });
1252 close $out_fh or croak $!;
1253 waitpid $pid, 0;
1254 croak $? if $?;
1255 if ($commit !~ /^$sha1$/o) {
1256 die "Failed to commit, invalid sha1: $commit\n";
1257 }
1258 command_noisy('update-ref',"refs/remotes/$GIT_SVN",$commit);
1259 revdb_set($REVDB, $log_entry->{revision}, $commit);
1260 # this output is read via pipe, do not change:
1262 print "r$log_entry->{revision} = $commit\n";
1263 return $commit;
1264}
1265sub check_repack {
1267 if ($_repack && (--$_repack_nr == 0)) {
1268 $_repack_nr = $_repack;
1269 # repack doesn't use any arguments with spaces in them, does it?
1270 command_noisy('repack', split(/\s+/, $_repack_flags));
1271 }
1272}
1273sub set_commit_env {
1275 my ($log_entry) = @_;
1276 my $author = $log_entry->{author};
1277 if (!defined $author || length $author == 0) {
1278 $author = '(no author)';
1279 }
1280 my ($name,$email) = defined $users{$author} ? @{$users{$author}}
1281 : ($author,$author . '@' . $SVN->uuid);
1282 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $name;
1283 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} = $email;
1284 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
1285}
1286sub check_upgrade_needed {
1288 if (!-r $REVDB) {
1289 -d $GIT_SVN_DIR or mkpath([$GIT_SVN_DIR]);
1290 open my $fh, '>>',$REVDB or croak $!;
1291 close $fh;
1292 }
1293 return unless eval {
1294 command([qw/rev-parse --verify/,"$GIT_SVN-HEAD^0"],
1295 {STDERR => 0});
1296 };
1297 my $head = eval { command('rev-parse',"refs/remotes/$GIT_SVN") };
1298 if ($@ || !$head) {
1299 print STDERR "Please run: $0 rebuild --upgrade\n";
1300 exit 1;
1301 }
1302}
1303# fills %tree_map with a reverse mapping of trees to commits. Useful
1305# for finding parents to commit on.
1306sub map_tree_joins {
1307 my %seen;
1308 foreach my $br (@_branch_from) {
1309 my $pipe = command_output_pipe(qw/rev-list
1310 --topo-order --pretty=raw/, $br);
1311 while (<$pipe>) {
1312 if (/^commit ($sha1)$/o) {
1313 my $commit = $1;
1314 # if we've seen a commit,
1316 # we've seen its parents
1317 last if $seen{$commit};
1318 my ($tree) = (<$pipe> =~ /^tree ($sha1)$/o);
1319 unless (defined $tree) {
1320 die "Failed to parse commit $commit\n";
1321 }
1322 push @{$tree_map{$tree}}, $commit;
1323 $seen{$commit} = 1;
1324 }
1325 }
1326 close $pipe;
1327 }
1328}
1329sub load_all_refs {
1331 if (@_branch_from) {
1332 print STDERR '--branch|-b parameters are ignored when ',
1333 "--branch-all-refs|-B is passed\n";
1334 }
1335 # don't worry about rev-list on non-commit objects/tags,
1337 # it shouldn't blow up if a ref is a blob or tree...
1338 @_branch_from = command(qw/rev-parse --symbolic --all/);
1339}
1340# '<svn username> = real-name <email address>' mapping based on git-svnimport:
1342sub load_authors {
1343 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1344 my $log = $cmd eq 'log';
1345 while (<$authors>) {
1346 chomp;
1347 next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1348 my ($user, $name, $email) = ($1, $2, $3);
1349 if ($log) {
1350 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1351 } else {
1352 $users{$user} = [$name, $email];
1353 }
1354 }
1355 close $authors or croak $!;
1356}
1357sub git_svn_each {
1359 my $sub = shift;
1360 foreach (command(qw/rev-parse --symbolic --all/)) {
1361 next unless s#^refs/remotes/##;
1362 chomp $_;
1363 next unless -f "$GIT_DIR/svn/$_/info/url";
1364 &$sub($_);
1365 }
1366}
1367sub migrate_revdb {
1369 git_svn_each(sub {
1370 my $id = shift;
1371 defined(my $pid = fork) or croak $!;
1372 if (!$pid) {
1373 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
1374 init_vars();
1375 exit 0 if -r $REVDB;
1376 print "Upgrading svn => git mapping...\n";
1377 -d $GIT_SVN_DIR or mkpath([$GIT_SVN_DIR]);
1378 open my $fh, '>>',$REVDB or croak $!;
1379 close $fh;
1380 rebuild();
1381 print "Done upgrading. You may now delete the ",
1382 "deprecated $GIT_SVN_DIR/revs directory\n";
1383 exit 0;
1384 }
1385 waitpid $pid, 0;
1386 croak $? if $?;
1387 });
1388}
1389sub migration_check {
1391 migrate_revdb() unless (-e $REVDB);
1392 return if (-d "$GIT_DIR/svn" || !-d $GIT_DIR);
1393 print "Upgrading repository...\n";
1394 unless (-d "$GIT_DIR/svn") {
1395 mkdir "$GIT_DIR/svn" or croak $!;
1396 }
1397 print "Data from a previous version of git-svn exists, but\n\t",
1398 "$GIT_SVN_DIR\n\t(required for this version ",
1399 "($VERSION) of git-svn) does not.\n";
1400 foreach my $x (command(qw/rev-parse --symbolic --all/)) {
1402 next unless $x =~ s#^refs/remotes/##;
1403 chomp $x;
1404 next unless -f "$GIT_DIR/$x/info/url";
1405 my $u = eval { file_to_s("$GIT_DIR/$x/info/url") };
1406 next unless $u;
1407 my $dn = dirname("$GIT_DIR/svn/$x");
1408 mkpath([$dn]) unless -d $dn;
1409 rename "$GIT_DIR/$x", "$GIT_DIR/svn/$x" or croak "$!: $x";
1410 }
1411 migrate_revdb() if (-d $GIT_SVN_DIR && !-w $REVDB);
1412 print "Done upgrading.\n";
1413}
1414sub find_rev_before {
1416 my ($r, $id, $eq_ok) = @_;
1417 my $f = "$GIT_DIR/svn/$id/.rev_db";
1418 return (undef,undef) unless -r $f;
1419 --$r unless $eq_ok;
1420 while ($r > 0) {
1421 if (my $c = revdb_get($f, $r)) {
1422 return ($r, $c);
1423 }
1424 --$r;
1425 }
1426 return (undef, undef);
1427}
1428sub init_vars {
1430 $GIT_SVN ||= $ENV{GIT_SVN_ID} || 'git-svn';
1431 $Git::SVN::default = $GIT_SVN;
1432 $GIT_SVN_DIR = "$GIT_DIR/svn/$GIT_SVN";
1433 $REVDB = "$GIT_SVN_DIR/.rev_db";
1434 $GIT_SVN_INDEX = "$GIT_SVN_DIR/index";
1435 $SVN_URL = undef;
1436 %tree_map = ();
1437}
1438# convert GetOpt::Long specs for use by git-config
1440sub read_repo_config {
1441 return unless -d $GIT_DIR;
1442 my $opts = shift;
1443 foreach my $o (keys %$opts) {
1444 my $v = $opts->{$o};
1445 my ($key) = ($o =~ /^([a-z\-]+)/);
1446 $key =~ s/-//g;
1447 my $arg = 'git-config';
1448 $arg .= ' --int' if ($o =~ /[:=]i$/);
1449 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1450 if (ref $v eq 'ARRAY') {
1451 chomp(my @tmp = `$arg --get-all svn.$key`);
1452 @$v = @tmp if @tmp;
1453 } else {
1454 chomp(my $tmp = `$arg --get svn.$key`);
1455 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1456 $$v = $tmp;
1457 }
1458 }
1459 }
1460}
1461sub set_default_vals {
1463 if (defined $_repack) {
1464 $_repack = 1000 if ($_repack <= 0);
1465 $_repack_nr = $_repack;
1466 $_repack_flags ||= '-d';
1467 }
1468}
1469sub read_grafts {
1471 my $gr_file = shift;
1472 my ($grafts, $comments) = ({}, {});
1473 if (open my $fh, '<', $gr_file) {
1474 my @tmp;
1475 while (<$fh>) {
1476 if (/^($sha1)\s+/) {
1477 my $c = $1;
1478 if (@tmp) {
1479 @{$comments->{$c}} = @tmp;
1480 @tmp = ();
1481 }
1482 foreach my $p (split /\s+/, $_) {
1483 $grafts->{$c}->{$p} = 1;
1484 }
1485 } else {
1486 push @tmp, $_;
1487 }
1488 }
1489 close $fh or croak $!;
1490 @{$comments->{'END'}} = @tmp if @tmp;
1491 }
1492 return ($grafts, $comments);
1493}
1494sub write_grafts {
1496 my ($grafts, $comments, $gr_file) = @_;
1497 open my $fh, '>', $gr_file or croak $!;
1499 foreach my $c (sort keys %$grafts) {
1500 if ($comments->{$c}) {
1501 print $fh $_ foreach @{$comments->{$c}};
1502 }
1503 my $p = $grafts->{$c};
1504 my %x; # real parents
1505 delete $p->{$c}; # commits are not self-reproducing...
1506 my $ch = command_output_pipe(qw/cat-file commit/, $c);
1507 while (<$ch>) {
1508 if (/^parent ($sha1)/) {
1509 $x{$1} = $p->{$1} = 1;
1510 } else {
1511 last unless /^\S/;
1512 }
1513 }
1514 close $ch; # breaking the pipe
1515 # if real parents are the only ones in the grafts, drop it
1517 next if join(' ',sort keys %$p) eq join(' ',sort keys %x);
1518 my (@ip, @jp, $mb);
1520 my %del = %x;
1521 @ip = @jp = keys %$p;
1522 foreach my $i (@ip) {
1523 next if $del{$i} || $p->{$i} == 2;
1524 foreach my $j (@jp) {
1525 next if $i eq $j || $del{$j} || $p->{$j} == 2;
1526 $mb = eval { command('merge-base', $i, $j) };
1527 next unless $mb;
1528 chomp $mb;
1529 next if $x{$mb};
1530 if ($mb eq $j) {
1531 delete $p->{$i};
1532 $del{$i} = 1;
1533 } elsif ($mb eq $i) {
1534 delete $p->{$j};
1535 $del{$j} = 1;
1536 }
1537 }
1538 }
1539 # if real parents are the only ones in the grafts, drop it
1541 next if join(' ',sort keys %$p) eq join(' ',sort keys %x);
1542 print $fh $c, ' ', join(' ', sort keys %$p),"\n";
1544 }
1545 if ($comments->{'END'}) {
1546 print $fh $_ foreach @{$comments->{'END'}};
1547 }
1548 close $fh or croak $!;
1549}
1550sub read_url_paths_all {
1552 my ($l_map, $pfx, $p) = @_;
1553 my @dir;
1554 foreach (<$p/*>) {
1555 if (-r "$_/info/url") {
1556 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
1557 my $id = $pfx . basename $_;
1558 my $url = file_to_s("$_/info/url");
1559 my ($u, $p) = repo_path_split($url);
1560 $l_map->{$u}->{$p} = $id;
1561 } elsif (-d $_) {
1562 push @dir, $_;
1563 }
1564 }
1565 foreach (@dir) {
1566 my $x = $_;
1567 $x =~ s!^\Q$GIT_DIR\E/svn/!!o;
1568 read_url_paths_all($l_map, $x, $_);
1569 }
1570}
1571# this one only gets ids that have been imported, not new ones
1573sub read_url_paths {
1574 my $l_map = {};
1575 git_svn_each(sub { my $x = shift;
1576 my $url = file_to_s("$GIT_DIR/svn/$x/info/url");
1577 my ($u, $p) = repo_path_split($url);
1578 $l_map->{$u}->{$p} = $x;
1579 });
1580 return $l_map;
1581}
1582sub extract_metadata {
1584 my $id = shift or return (undef, undef, undef);
1585 my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
1586 \s([a-f\d\-]+)$/x);
1587 if (!defined $rev || !$uuid || !$url) {
1588 # some of the original repositories I made had
1589 # identifiers like this:
1590 ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1591 }
1592 return ($url, $rev, $uuid);
1593}
1594sub cmt_metadata {
1596 return extract_metadata((grep(/^git-svn-id: /,
1597 command(qw/cat-file commit/, shift)))[-1]);
1598}
1599sub get_commit_time {
1601 my $cmt = shift;
1602 my $fh = command_output_pipe(qw/rev-list --pretty=raw -n1/, $cmt);
1603 while (<$fh>) {
1604 /^committer\s(?:.+) (\d+) ([\-\+]?\d+)$/ or next;
1605 my ($s, $tz) = ($1, $2);
1606 if ($tz =~ s/^\+//) {
1607 $s += tz_to_s_offset($tz);
1608 } elsif ($tz =~ s/^\-//) {
1609 $s -= tz_to_s_offset($tz);
1610 }
1611 close $fh;
1612 return $s;
1613 }
1614 die "Can't get commit time for commit: $cmt\n";
1615}
1616sub tz_to_s_offset {
1618 my ($tz) = @_;
1619 $tz =~ s/(\d\d)$//;
1620 return ($1 * 60) + ($tz * 3600);
1621}
1622package Git::SVN;
1624use strict;
1625use warnings;
1626use vars qw/$default/;
1627use Carp qw/croak/;
1628use File::Path qw/mkpath/;
1629use IPC::Open3;
1630# properties that we do not log:
1632my %SKIP_PROP;
1633BEGIN {
1634 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
1635 svn:special svn:executable
1636 svn:entry:committed-rev
1637 svn:entry:last-author
1638 svn:entry:uuid
1639 svn:entry:committed-date/;
1640}
1641sub init {
1643 my ($class, $id, $url) = @_;
1644 my $self = _new($class, $id);
1645 mkpath(["$self->{dir}/info"]);
1646 if (defined $url) {
1647 $url =~ s!/+$!!; # strip trailing slash
1648 ::s_to_file($url, "$self->{dir}/info/url");
1649 }
1650 $self->{url} = $url;
1651 open my $fh, '>>', $self->{db_path} or croak $!;
1652 close $fh or croak $!;
1653 $self;
1654}
1655sub new {
1657 my ($class, $id) = @_;
1658 my $self = _new($class, $id);
1659 $self->{url} = ::file_to_s("$self->{dir}/info/url");
1660 $self;
1661}
1662sub refname { "refs/remotes/$_[0]->{id}" }
1664sub ra {
1666 my ($self) = shift;
1667 $self->{ra} ||= Git::SVN::Ra->new($self->{url});
1668}
1669sub copy_remote_ref {
1671 my ($self) = @_;
1672 my $origin = $::_cp_remote ? $::_cp_remote : 'origin';
1673 my $ref = $self->refname;
1674 if (command('ls-remote', $origin, $ref)) {
1675 command_noisy('fetch', $origin, "$ref:$ref");
1676 } elsif ($::_cp_remote && !$::_upgrade) {
1677 die "Unable to find remote reference: $ref on $origin\n";
1678 }
1679}
1680sub traverse_ignore {
1682 my ($self, $fh, $path, $r) = @_;
1683 $path =~ s#^/+##g;
1684 my ($dirent, undef, $props) = $self->ra->get_dir($path, $r);
1685 my $p = $path;
1686 $p =~ s#^\Q$self->{ra}->{svn_path}\E/##;
1687 print $fh length $p ? "\n# $p\n" : "\n# /\n";
1688 if (my $s = $props->{'svn:ignore'}) {
1689 $s =~ s/[\r\n]+/\n/g;
1690 chomp $s;
1691 if (length $p == 0) {
1692 $s =~ s#\n#\n/$p#g;
1693 print $fh "/$s\n";
1694 } else {
1695 $s =~ s#\n#\n/$p/#g;
1696 print $fh "/$p/$s\n";
1697 }
1698 }
1699 foreach (sort keys %$dirent) {
1700 next if $dirent->{$_}->kind != $SVN::Node::dir;
1701 $self->traverse_ignore($fh, "$path/$_", $r);
1702 }
1703}
1704# returns the newest SVN revision number and newest commit SHA1
1706sub last_rev_commit {
1707 my ($self) = @_;
1708 if (defined $self->{last_rev} && defined $self->{last_commit}) {
1709 return ($self->{last_rev}, $self->{last_commit});
1710 }
1711 my $c = ::verify_ref($self->refname.'^0');
1712 if (defined $c && length $c) {
1713 my $rev = (::cmt_metadata($c))[1];
1714 if (defined $rev) {
1715 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1716 return ($rev, $c);
1717 }
1718 }
1719 my $offset = -41; # from tail
1720 my $rl;
1721 open my $fh, '<', $self->{db_path} or
1722 croak "$self->{db_path} not readable: $!\n";
1723 seek $fh, $offset, 2;
1724 $rl = readline $fh;
1725 defined $rl or return (undef, undef);
1726 chomp $rl;
1727 while ($c ne $rl && tell $fh != 0) {
1728 $offset -= 41;
1729 seek $fh, $offset, 2;
1730 $rl = readline $fh;
1731 defined $rl or return (undef, undef);
1732 chomp $rl;
1733 }
1734 my $rev = tell $fh;
1735 croak $! if ($rev < 0);
1736 $rev = ($rev - 41) / 41;
1737 close $fh or croak $!;
1738 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
1739 return ($rev, $c);
1740}
1741sub parse_revision {
1743 my ($self, $base) = @_;
1744 my $head = $self->ra->get_latest_revnum;
1745 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
1746 return ($base + 1, $head) if (defined $base);
1747 return (0, $head);
1748 }
1749 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
1750 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
1751 if ($::_revision =~ /^BASE:(\d+)$/) {
1752 return ($base + 1, $1) if (defined $base);
1753 return (0, $head);
1754 }
1755 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
1756 die "revision argument: $::_revision not understood by git-svn\n",
1757 "Try using the command-line svn client instead\n";
1758}
1759sub tmp_index_do {
1761 my ($self, $sub) = @_;
1762 my $old_index = $ENV{GIT_INDEX_FILE};
1763 $ENV{GIT_INDEX_FILE} = $self->{index};
1764 my @ret = &$sub;
1765 if ($old_index) {
1766 $ENV{GIT_INDEX_FILE} = $old_index;
1767 } else {
1768 delete $ENV{GIT_INDEX_FILE};
1769 }
1770 wantarray ? @ret : $ret[0];
1771}
1772sub assert_index_clean {
1774 my ($self, $treeish) = @_;
1775 $self->tmp_index_do(sub {
1777 command_noisy('read-tree', $treeish) unless -e $self->{index};
1778 my $x = command_oneline('write-tree');
1779 my ($y) = (command(qw/cat-file commit/, $treeish) =~
1780 /^tree ($::sha1)/mo);
1781 if ($y ne $x) {
1782 unlink $self->{index} or croak $!;
1783 command_noisy('read-tree', $treeish);
1784 }
1785 $x = command_oneline('write-tree');
1786 if ($y ne $x) {
1787 ::fatal "trees ($treeish) $y != $x\n",
1788 "Something is seriously wrong...\n";
1789 }
1790 });
1791}
1792sub get_commit_parents {
1794 my ($self, $log_entry, @parents) = @_;
1795 my (%seen, @ret, @tmp);
1796 # commit parents can be conditionally bound to a particular
1797 # svn revision via: "svn_revno=commit_sha1", filter them out here:
1798 foreach my $p (@parents) {
1799 next unless defined $p;
1800 if ($p =~ /^(\d+)=($::sha1_short)$/o) {
1801 push @tmp, $2 if $1 == $log_entry->{revision};
1802 } else {
1803 push @tmp, $p if $p =~ /^$::sha1_short$/o;
1804 }
1805 }
1806 if (my $cur = ::verify_ref($self->refname.'^0')) {
1807 push @tmp, $cur;
1808 }
1809 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
1810 while (my $p = shift @tmp) {
1811 next if $seen{$p};
1812 $seen{$p} = 1;
1813 push @ret, $p;
1814 # MAXPARENT is defined to 16 in commit-tree.c:
1815 last if @ret >= 16;
1816 }
1817 if (@tmp) {
1818 die "r$log_entry->{revision}: No room for parents:\n\t",
1819 join("\n\t", @tmp), "\n";
1820 }
1821 @ret;
1822}
1823sub check_upgrade_needed {
1825 my ($self) = @_;
1826 if (!-r $self->{db_path}) {
1827 -d $self->{dir} or mkpath([$self->{dir}]);
1828 open my $fh, '>>', $self->{db_path} or croak $!;
1829 close $fh;
1830 }
1831 return unless ::verify_ref($self->{id}.'-HEAD^0');
1832 my $head = ::verify_ref($self->refname.'^0');
1833 if ($@ || !$head) {
1834 ::fatal("Please run: $0 rebuild --upgrade\n");
1835 }
1836}
1837sub do_git_commit {
1839 my ($self, $log_entry, @parents) = @_;
1840 if (my $c = $self->rev_db_get($log_entry->{revision})) {
1841 croak "$log_entry->{revision} = $c already exists! ",
1842 "Why are we refetching it?\n";
1843 }
1844 my ($name, $email) = ::author_name_email($log_entry->{author},
1845 $self->ra);
1846 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $name;
1847 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} = $email;
1848 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
1849 my $tree = $log_entry->{tree};
1851 if (!defined $tree) {
1852 $tree = $self->tmp_index_do(sub {
1853 command_oneline('write-tree') });
1854 }
1855 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
1856 my @exec = ('git-commit-tree', $tree);
1858 foreach ($self->get_commit_parents($log_entry, @parents)) {
1859 push @exec, '-p', $_;
1860 }
1861 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1862 or croak $!;
1863 print $msg_fh $log_entry->{log} or croak $!;
1864 print $msg_fh "\ngit-svn-id: ", $self->ra->{url}, '@',
1865 $log_entry->{revision}, ' ',
1866 $self->ra->uuid, "\n" or croak $!;
1867 $msg_fh->flush == 0 or croak $!;
1868 close $msg_fh or croak $!;
1869 chomp(my $commit = do { local $/; <$out_fh> });
1870 close $out_fh or croak $!;
1871 waitpid $pid, 0;
1872 croak $? if $?;
1873 if ($commit !~ /^$::sha1$/o) {
1874 die "Failed to commit, invalid sha1: $commit\n";
1875 }
1876 command_noisy('update-ref',$self->refname, $commit);
1878 $self->rev_db_set($log_entry->{revision}, $commit);
1879 $self->{last_rev} = $log_entry->{revision};
1881 $self->{last_commit} = $commit;
1882 print "r$log_entry->{revision} = $commit\n";
1883 return $commit;
1884}
1885sub do_fetch {
1887 my ($self, $paths, $rev) = @_; #, $author, $date, $log) = @_;
1888 my $ed = SVN::Git::Fetcher->new($self);
1889 my ($last_rev, @parents);
1890 if ($self->{last_commit}) {
1891 $last_rev = $self->{last_rev};
1892 $ed->{c} = $self->{last_commit};
1893 @parents = ($self->{last_commit});
1894 } else {
1895 $last_rev = $rev;
1896 }
1897 unless ($self->ra->do_update($last_rev, $rev, '', 1, $ed)) {
1898 die "SVN connection failed somewhere...\n";
1899 }
1900 $self->make_log_entry($rev, \@parents, $ed);
1901}
1902sub write_untracked {
1904 my ($self, $rev, $fh, $untracked) = @_;
1905 my $h;
1906 print $fh "r$rev\n" or croak $!;
1907 $h = $untracked->{empty};
1908 foreach (sort keys %$h) {
1909 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
1910 print $fh " $act: ", uri_encode($_), "\n" or croak $!;
1911 warn "W: $act: $_\n";
1912 }
1913 foreach my $t (qw/dir_prop file_prop/) {
1914 $h = $untracked->{$t} or next;
1915 foreach my $path (sort keys %$h) {
1916 my $ppath = $path eq '' ? '.' : $path;
1917 foreach my $prop (sort keys %{$h->{$path}}) {
1918 next if $SKIP{$prop};
1919 my $v = $h->{$path}->{$prop};
1920 if (defined $v) {
1921 print $fh " +$t: ",
1922 uri_encode($ppath), ' ',
1923 uri_encode($prop), ' ',
1924 uri_encode($v), "\n"
1925 or croak $!;
1926 } else {
1927 print $fh " -$t: ",
1928 uri_encode($ppath), ' ',
1929 uri_encode($prop), "\n"
1930 or croak $!;
1931 }
1932 }
1933 }
1934 }
1935 foreach my $t (qw/absent_file absent_directory/) {
1936 $h = $untracked->{$t} or next;
1937 foreach my $parent (sort keys %$h) {
1938 foreach my $path (sort @{$h->{$parent}}) {
1939 print $fh " $t: ",
1940 uri_encode("$parent/$path"), "\n"
1941 or croak $!;
1942 warn "W: $t: $parent/$path ",
1943 "Insufficient permissions?\n";
1944 }
1945 }
1946 }
1947}
1948sub make_log_entry {
1950 my ($self, $rev, $parents, $untracked) = @_;
1951 my $rp = $self->ra->rev_proplist($rev);
1952 my %log_entry = ( parents => $parents || [], revision => $rev,
1953 revprops => $rp, log => '');
1954 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
1955 $self->write_untracked($rev, $un, $untracked);
1956 foreach (sort keys %$rp) {
1957 my $v = $rp->{$_};
1958 if (/^svn:(author|date|log)$/) {
1959 $log_entry{$1} = $v;
1960 } else {
1961 print $un " rev_prop: ", uri_encode($_), ' ',
1962 uri_encode($v), "\n";
1963 }
1964 }
1965 close $un or croak $!;
1966 $log_entry{date} = parse_svn_date($log_entry{date});
1967 $log_entry{author} = check_author($log_entry{author});
1968 $log_entry{log} .= "\n";
1969 \%log_entry;
1970}
1971sub fetch {
1973 my ($self, @parents) = @_;
1974 my ($last_rev, $last_commit) = $self->last_rev_commit;
1975 my ($base, $head) = $self->parse_revision($last_rev);
1976 return if ($base > $head);
1977 if (defined $last_commit) {
1978 $self->assert_index_clean($last_commit);
1979 }
1980 my $inc = 1000;
1981 my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
1982 my $err_handler = $SVN::Error::handler;
1983 $SVN::Error::handler = \&skip_unknown_revs;
1984 while (1) {
1985 my @revs;
1986 $self->ra->get_log([''], $min, $max, 0, 1, 1, sub {
1987 my ($paths, $rev, $author, $date, $log) = @_;
1988 push @revs, $rev });
1989 foreach (@revs) {
1990 my $log_entry = $self->do_fetch(undef, $_);
1991 $self->do_git_commit($log_entry, @parents);
1992 }
1993 last if $max >= $head;
1994 $min = $max + 1;
1995 $max += $inc;
1996 $max = $head if ($max > $head);
1997 }
1998 $SVN::Error::handler = $err_handler;
1999}
2000sub set_tree_cb {
2002 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
2003 # TODO: enable and test optimized commits:
2004 if (0 && $rev == ($self->{last_rev} + 1)) {
2005 $log_entry->{revision} = $rev;
2006 $log_entry->{author} = $author;
2007 $self->do_git_commit($log_entry, "$rev=$tree");
2008 } else {
2009 $self->fetch("$rev=$tree");
2010 }
2011}
2012sub set_tree {
2014 my ($self, $tree) = (shift, shift);
2015 my $log_entry = get_commit_entry($tree);
2016 unless ($self->{last_rev}) {
2017 fatal("Must have an existing revision to commit\n");
2018 }
2019 my $pool = SVN::Pool->new;
2020 my $ed = SVN::Git::Editor->new({ r => $self->{last_rev},
2021 ra => $self->ra->dup,
2022 svn_path => $self->ra->{svn_path}
2023 },
2024 $self->ra->get_commit_editor(
2025 $log_entry->{log}, sub {
2026 $self->set_tree_cb($log_entry,
2027 $tree, @_);
2028 }),
2029 $pool);
2030 my $mods = $ed->apply_diff($self->{last_commit}, $tree);
2031 if (@$mods == 0) {
2032 print "No changes\nr$self->{last_rev} = $tree\n";
2033 }
2034 $pool->clear;
2035}
2036sub skip_unknown_revs {
2038 my ($err) = @_;
2039 my $errno = $err->apr_err();
2040 # Maybe the branch we're tracking didn't
2041 # exist when the repo started, so it's
2042 # not an error if it doesn't, just continue
2043 #
2044 # Wonderfully consistent library, eh?
2045 # 160013 - svn:// and file://
2046 # 175002 - http(s)://
2047 # 175007 - http(s):// (this repo required authorization, too...)
2048 # More codes may be discovered later...
2049 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
2050 return;
2051 }
2052 croak "Error from SVN, ($errno): ", $err->expanded_message,"\n";
2053}
2054# rev_db:
2056# Tie::File seems to be prone to offset errors if revisions get sparse,
2057# it's not that fast, either. Tie::File is also not in Perl 5.6. So
2058# one of my favorite modules is out :< Next up would be one of the DBM
2059# modules, but I'm not sure which is most portable... So I'll just
2060# go with something that's plain-text, but still capable of
2061# being randomly accessed. So here's my ultra-simple fixed-width
2062# database. All records are 40 characters + "\n", so it's easy to seek
2063# to a revision: (41 * rev) is the byte offset.
2064# A record of 40 0s denotes an empty revision.
2065# And yes, it's still pretty fast (faster than Tie::File).
2066sub rev_db_set {
2068 my ($self, $rev, $commit) = @_;
2069 length $commit == 40 or croak "arg3 must be a full SHA1 hexsum\n";
2070 open my $fh, '+<', $self->{db_path} or croak $!;
2071 my $offset = $rev * 41;
2072 # assume that append is the common case:
2073 seek $fh, 0, 2 or croak $!;
2074 my $pos = tell $fh;
2075 if ($pos < $offset) {
2076 print $fh (('0' x 40),"\n") x (($offset - $pos) / 41)
2077 or croak $!;
2078 }
2079 seek $fh, $offset, 0 or croak $!;
2080 print $fh $commit,"\n" or croak $!;
2081 close $fh or croak $!;
2082}
2083sub rev_db_get {
2085 my ($self, $rev) = @_;
2086 my $ret;
2087 my $offset = $rev * 41;
2088 open my $fh, '<', $self->{db_path} or croak $!;
2089 if (seek $fh, $offset, 0) {
2090 $ret = readline $fh;
2091 if (defined $ret) {
2092 chomp $ret;
2093 $ret = undef if ($ret =~ /^0{40}$/);
2094 }
2095 }
2096 close $fh or croak $!;
2097 $ret;
2098}
2099sub _new {
2101 my ($class, $id) = @_;
2102 $id ||= $Git::SVN::default;
2103 my $dir = "$ENV{GIT_DIR}/svn/$id";
2104 bless { id => $id, dir => $dir, index => "$dir/index",
2105 db_path => "$dir/.rev_db" }, $class;
2106}
2107package Git::SVN::Prompt;
2110use strict;
2111use warnings;
2112require SVN::Core;
2113use vars qw/$_no_auth_cache $_username/;
2114sub simple {
2116 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
2117 $may_save = undef if $_no_auth_cache;
2118 $default_username = $_username if defined $_username;
2119 if (defined $default_username && length $default_username) {
2120 if (defined $realm && length $realm) {
2121 print STDERR "Authentication realm: $realm\n";
2122 STDERR->flush;
2123 }
2124 $cred->username($default_username);
2125 } else {
2126 username($cred, $realm, $may_save, $pool);
2127 }
2128 $cred->password(_read_password("Password for '" .
2129 $cred->username . "': ", $realm));
2130 $cred->may_save($may_save);
2131 $SVN::_Core::SVN_NO_ERROR;
2132}
2133sub ssl_server_trust {
2135 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
2136 $may_save = undef if $_no_auth_cache;
2137 print STDERR "Error validating server certificate for '$realm':\n";
2138 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
2139 print STDERR " - The certificate is not issued by a trusted ",
2140 "authority. Use the\n",
2141 " fingerprint to validate the certificate manually!\n";
2142 }
2143 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
2144 print STDERR " - The certificate hostname does not match.\n";
2145 }
2146 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
2147 print STDERR " - The certificate is not yet valid.\n";
2148 }
2149 if ($failures & $SVN::Auth::SSL::EXPIRED) {
2150 print STDERR " - The certificate has expired.\n";
2151 }
2152 if ($failures & $SVN::Auth::SSL::OTHER) {
2153 print STDERR " - The certificate has an unknown error.\n";
2154 }
2155 printf STDERR
2156 "Certificate information:\n".
2157 " - Hostname: %s\n".
2158 " - Valid: from %s until %s\n".
2159 " - Issuer: %s\n".
2160 " - Fingerprint: %s\n",
2161 map $cert_info->$_, qw(hostname valid_from valid_until
2162 issuer_dname fingerprint);
2163 my $choice;
2164prompt:
2165 print STDERR $may_save ?
2166 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
2167 "(R)eject or accept (t)emporarily? ";
2168 STDERR->flush;
2169 $choice = lc(substr(<STDIN> || 'R', 0, 1));
2170 if ($choice =~ /^t$/i) {
2171 $cred->may_save(undef);
2172 } elsif ($choice =~ /^r$/i) {
2173 return -1;
2174 } elsif ($may_save && $choice =~ /^p$/i) {
2175 $cred->may_save($may_save);
2176 } else {
2177 goto prompt;
2178 }
2179 $cred->accepted_failures($failures);
2180 $SVN::_Core::SVN_NO_ERROR;
2181}
2182sub ssl_client_cert {
2184 my ($cred, $realm, $may_save, $pool) = @_;
2185 $may_save = undef if $_no_auth_cache;
2186 print STDERR "Client certificate filename: ";
2187 STDERR->flush;
2188 chomp(my $filename = <STDIN>);
2189 $cred->cert_file($filename);
2190 $cred->may_save($may_save);
2191 $SVN::_Core::SVN_NO_ERROR;
2192}
2193sub ssl_client_cert_pw {
2195 my ($cred, $realm, $may_save, $pool) = @_;
2196 $may_save = undef if $_no_auth_cache;
2197 $cred->password(_read_password("Password: ", $realm));
2198 $cred->may_save($may_save);
2199 $SVN::_Core::SVN_NO_ERROR;
2200}
2201sub username {
2203 my ($cred, $realm, $may_save, $pool) = @_;
2204 $may_save = undef if $_no_auth_cache;
2205 if (defined $realm && length $realm) {
2206 print STDERR "Authentication realm: $realm\n";
2207 }
2208 my $username;
2209 if (defined $_username) {
2210 $username = $_username;
2211 } else {
2212 print STDERR "Username: ";
2213 STDERR->flush;
2214 chomp($username = <STDIN>);
2215 }
2216 $cred->username($username);
2217 $cred->may_save($may_save);
2218 $SVN::_Core::SVN_NO_ERROR;
2219}
2220sub _read_password {
2222 my ($prompt, $realm) = @_;
2223 print STDERR $prompt;
2224 STDERR->flush;
2225 require Term::ReadKey;
2226 Term::ReadKey::ReadMode('noecho');
2227 my $password = '';
2228 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
2229 last if $key =~ /[\012\015]/; # \n\r
2230 $password .= $key;
2231 }
2232 Term::ReadKey::ReadMode('restore');
2233 print STDERR "\n";
2234 STDERR->flush;
2235 $password;
2236}
2237package main;
2239sub uri_encode {
2241 my ($f) = @_;
2242 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2243 $f
2244}
2245sub uri_decode {
2247 my ($f) = @_;
2248 $f =~ tr/+/ /;
2249 $f =~ s/%([A-F0-9]{2})/chr hex($1)/ge;
2250 $f
2251}
2252sub libsvn_log_entry {
2254 my ($rev, $author, $date, $log, $parents, $untracked) = @_;
2255 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2256 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x)
2257 or die "Unable to parse date: $date\n";
2258 if (defined $author && length $author > 0 &&
2259 defined $_authors && ! defined $users{$author}) {
2260 die "Author: $author not defined in $_authors file\n";
2261 }
2262 $log = '' if ($rev == 0 && !defined $log);
2263 open my $un, '>>', "$GIT_SVN_DIR/unhandled.log" or croak $!;
2265 my $h;
2266 print $un "r$rev\n" or croak $!;
2267 $h = $untracked->{empty};
2268 foreach (sort keys %$h) {
2269 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2270 print $un " $act: ", uri_encode($_), "\n" or croak $!;
2271 warn "W: $act: $_\n";
2272 }
2273 foreach my $t (qw/dir_prop file_prop/) {
2274 $h = $untracked->{$t} or next;
2275 foreach my $path (sort keys %$h) {
2276 my $ppath = $path eq '' ? '.' : $path;
2277 foreach my $prop (sort keys %{$h->{$path}}) {
2278 next if $SKIP{$prop};
2279 my $v = $h->{$path}->{$prop};
2280 if (defined $v) {
2281 print $un " +$t: ",
2282 uri_encode($ppath), ' ',
2283 uri_encode($prop), ' ',
2284 uri_encode($v), "\n"
2285 or croak $!;
2286 } else {
2287 print $un " -$t: ",
2288 uri_encode($ppath), ' ',
2289 uri_encode($prop), "\n"
2290 or croak $!;
2291 }
2292 }
2293 }
2294 }
2295 foreach my $t (qw/absent_file absent_directory/) {
2296 $h = $untracked->{$t} or next;
2297 foreach my $parent (sort keys %$h) {
2298 foreach my $path (sort @{$h->{$parent}}) {
2299 print $un " $t: ",
2300 uri_encode("$parent/$path"), "\n"
2301 or croak $!;
2302 warn "W: $t: $parent/$path ",
2303 "Insufficient permissions?\n";
2304 }
2305 }
2306 }
2307 # revprops (make this optional? it's an extra network trip...)
2309 my $rp = $SVN->rev_proplist($rev);
2310 foreach (sort keys %$rp) {
2311 next if /^svn:(?:author|date|log)$/;
2312 print $un " rev_prop: ", uri_encode($_), ' ',
2313 uri_encode($rp->{$_}), "\n";
2314 }
2315 close $un or croak $!;
2316 { revision => $rev, date => "+0000 $Y-$m-$d $H:$M:$S",
2318 author => $author, log => $log."\n", parents => $parents || [],
2319 revprops => $rp }
2320}
2321sub libsvn_fetch {
2323 my ($last_commit, $paths, $rev, $author, $date, $log) = @_;
2324 my $ed = SVN::Git::Fetcher->new({ c => $last_commit, q => $_q });
2325 my (undef, $last_rev, undef) = cmt_metadata($last_commit);
2326 unless ($SVN->gs_do_update($last_rev, $rev, '', 1, $ed)) {
2327 die "SVN connection failed somewhere...\n";
2328 }
2329 libsvn_log_entry($rev, $author, $date, $log, [$last_commit], $ed);
2330}
2331sub svn_grab_base_rev {
2333 my $c = eval { command_oneline([qw/rev-parse --verify/,
2334 "refs/remotes/$GIT_SVN^0"],
2335 { STDERR => 0 }) };
2336 if (defined $c && length $c) {
2337 my ($url, $rev, $uuid) = cmt_metadata($c);
2338 return ($rev, $c) if defined $rev;
2339 }
2340 if ($_no_metadata) {
2341 my $offset = -41; # from tail
2342 my $rl;
2343 open my $fh, '<', $REVDB or
2344 die "--no-metadata specified and $REVDB not readable\n";
2345 seek $fh, $offset, 2;
2346 $rl = readline $fh;
2347 defined $rl or return (undef, undef);
2348 chomp $rl;
2349 while ($c ne $rl && tell $fh != 0) {
2350 $offset -= 41;
2351 seek $fh, $offset, 2;
2352 $rl = readline $fh;
2353 defined $rl or return (undef, undef);
2354 chomp $rl;
2355 }
2356 my $rev = tell $fh;
2357 croak $! if ($rev < -1);
2358 $rev = ($rev - 41) / 41;
2359 close $fh or croak $!;
2360 return ($rev, $c);
2361 }
2362 return (undef, undef);
2363}
2364sub libsvn_parse_revision {
2366 my $base = shift;
2367 my $head = $SVN->get_latest_revnum();
2368 if (!defined $_revision || $_revision eq 'BASE:HEAD') {
2369 return ($base + 1, $head) if (defined $base);
2370 return (0, $head);
2371 }
2372 return ($1, $2) if ($_revision =~ /^(\d+):(\d+)$/);
2373 return ($_revision, $_revision) if ($_revision =~ /^\d+$/);
2374 if ($_revision =~ /^BASE:(\d+)$/) {
2375 return ($base + 1, $1) if (defined $base);
2376 return (0, $head);
2377 }
2378 return ($1, $head) if ($_revision =~ /^(\d+):HEAD$/);
2379 die "revision argument: $_revision not understood by git-svn\n",
2380 "Try using the command-line svn client instead\n";
2381}
2382sub libsvn_traverse_ignore {
2384 my ($fh, $path, $r) = @_;
2385 $path =~ s#^/+##g;
2386 my ($dirent, undef, $props) = $SVN->get_dir($path, $r);
2387 my $p = $path;
2388 $p =~ s#^\Q$SVN->{svn_path}\E/##;
2389 print $fh length $p ? "\n# $p\n" : "\n# /\n";
2390 if (my $s = $props->{'svn:ignore'}) {
2391 $s =~ s/[\r\n]+/\n/g;
2392 chomp $s;
2393 if (length $p == 0) {
2394 $s =~ s#\n#\n/$p#g;
2395 print $fh "/$s\n";
2396 } else {
2397 $s =~ s#\n#\n/$p/#g;
2398 print $fh "/$p/$s\n";
2399 }
2400 }
2401 foreach (sort keys %$dirent) {
2402 next if $dirent->{$_}->kind != $SVN::Node::dir;
2403 libsvn_traverse_ignore($fh, "$path/$_", $r);
2404 }
2405}
2406sub revisions_eq {
2408 my ($path, $r0, $r1) = @_;
2409 return 1 if $r0 == $r1;
2410 my $nr = 0;
2411 # should be OK to use Pool here (r1 - r0) should be small
2412 $SVN->get_log([$path], $r0, $r1, 0, 0, 1, sub {$nr++});
2413 return 0 if ($nr > 1);
2414 return 1;
2415}
2416sub libsvn_find_parent_branch {
2418 my ($paths, $rev, $author, $date, $log) = @_;
2419 my $svn_path = '/'.$SVN->{svn_path};
2420 # look for a parent from another branch:
2422 my $i = $paths->{$svn_path} or return;
2423 my $branch_from = $i->copyfrom_path or return;
2424 my $r = $i->copyfrom_rev;
2425 print STDERR "Found possible branch point: ",
2426 "$branch_from => $svn_path, $r\n";
2427 $branch_from =~ s#^/##;
2428 my $l_map = {};
2429 read_url_paths_all($l_map, '', "$GIT_DIR/svn");
2430 my $url = $SVN->{repos_root};
2431 defined $l_map->{$url} or return;
2432 my $id = $l_map->{$url}->{$branch_from};
2433 if (!defined $id && $_follow_parent) {
2434 print STDERR "Following parent: $branch_from\@$r\n";
2435 # auto create a new branch and follow it
2436 $id = basename($branch_from);
2437 $id .= '@'.$r if -r "$GIT_DIR/svn/$id";
2438 while (-r "$GIT_DIR/svn/$id") {
2439 # just grow a tail if we're not unique enough :x
2440 $id .= '-';
2441 }
2442 }
2443 return unless defined $id;
2444 my ($r0, $parent) = find_rev_before($r,$id,1);
2446 if ($_follow_parent && (!defined $r0 || !defined $parent)) {
2447 defined(my $pid = fork) or croak $!;
2448 if (!$pid) {
2449 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
2450 init_vars();
2451 $SVN_URL = "$url/$branch_from";
2452 $SVN = undef;
2453 setup_git_svn();
2454 # we can't assume SVN_URL exists at r+1:
2455 $_revision = "0:$r";
2456 fetch_lib();
2457 exit 0;
2458 }
2459 waitpid $pid, 0;
2460 croak $? if $?;
2461 ($r0, $parent) = find_rev_before($r,$id,1);
2462 }
2463 return unless (defined $r0 && defined $parent);
2464 if (revisions_eq($branch_from, $r0, $r)) {
2465 unlink $GIT_SVN_INDEX;
2466 print STDERR "Found branch parent: ($GIT_SVN) $parent\n";
2467 command_noisy('read-tree', $parent);
2468 unless ($SVN->can_do_switch) {
2469 return _libsvn_new_tree($paths, $rev, $author, $date,
2470 $log, [$parent]);
2471 }
2472 # do_switch works with svn/trunk >= r22312, but that is not
2473 # included with SVN 1.4.2 (the latest version at the moment),
2474 # so we can't rely on it.
2475 my $ra = Git::SVN::Ra->new("$url/$branch_from");
2476 my $ed = SVN::Git::Fetcher->new({c => $parent, q => $_q });
2477 $ra->gs_do_switch($r0, $rev, '', 1, $SVN->{url}, $ed) or
2478 die "SVN connection failed somewhere...\n";
2479 return libsvn_log_entry($rev, $author, $date, $log, [$parent]);
2480 }
2481 print STDERR "Nope, branch point not imported or unknown\n";
2482 return undef;
2483}
2484sub libsvn_new_tree {
2486 if (my $log_entry = libsvn_find_parent_branch(@_)) {
2487 return $log_entry;
2488 }
2489 my ($paths, $rev, $author, $date, $log) = @_; # $pool is last
2490 _libsvn_new_tree($paths, $rev, $author, $date, $log, []);
2491}
2492sub _libsvn_new_tree {
2494 my ($paths, $rev, $author, $date, $log, $parents) = @_;
2495 my $ed = SVN::Git::Fetcher->new({q => $_q});
2496 unless ($SVN->gs_do_update($rev, $rev, '', 1, $ed)) {
2497 die "SVN connection failed somewhere...\n";
2498 }
2499 libsvn_log_entry($rev, $author, $date, $log, $parents, $ed);
2500}
2501sub find_graft_path_commit {
2503 my ($tree_paths, $p1, $r1) = @_;
2504 foreach my $x (keys %$tree_paths) {
2505 next unless ($p1 =~ /^\Q$x\E/);
2506 my $i = $tree_paths->{$x};
2507 my ($r0, $parent) = find_rev_before($r1,$i,1);
2508 return $parent if (defined $r0 && $r0 == $r1);
2509 print STDERR "r$r1 of $i not imported\n";
2510 next;
2511 }
2512 return undef;
2513}
2514sub find_graft_path_parents {
2516 my ($grafts, $tree_paths, $c, $p0, $r0) = @_;
2517 foreach my $x (keys %$tree_paths) {
2518 next unless ($p0 =~ /^\Q$x\E/);
2519 my $i = $tree_paths->{$x};
2520 my ($r, $parent) = find_rev_before($r0, $i, 1);
2521 if (defined $r && defined $parent && revisions_eq($x,$r,$r0)) {
2522 my ($url_b, undef, $uuid_b) = cmt_metadata($c);
2523 my ($url_a, undef, $uuid_a) = cmt_metadata($parent);
2524 next if ($url_a && $url_b && $url_a eq $url_b &&
2525 $uuid_b eq $uuid_a);
2526 $grafts->{$c}->{$parent} = 1;
2527 }
2528 }
2529}
2530sub libsvn_graft_file_copies {
2532 my ($grafts, $tree_paths, $path, $paths, $rev) = @_;
2533 foreach (keys %$paths) {
2534 my $i = $paths->{$_};
2535 my ($m, $p0, $r0) = ($i->action, $i->copyfrom_path,
2536 $i->copyfrom_rev);
2537 next unless (defined $p0 && defined $r0);
2538 my $p1 = $_;
2540 $p1 =~ s#^/##;
2541 $p0 =~ s#^/##;
2542 my $c = find_graft_path_commit($tree_paths, $p1, $rev);
2543 next unless $c;
2544 find_graft_path_parents($grafts, $tree_paths, $c, $p0, $r0);
2545 }
2546}
2547sub set_index {
2549 my $old = $ENV{GIT_INDEX_FILE};
2550 $ENV{GIT_INDEX_FILE} = shift;
2551 return $old;
2552}
2553sub restore_index {
2555 my ($old) = @_;
2556 if (defined $old) {
2557 $ENV{GIT_INDEX_FILE} = $old;
2558 } else {
2559 delete $ENV{GIT_INDEX_FILE};
2560 }
2561}
2562sub libsvn_commit_cb {
2564 my ($rev, $date, $committer, $c, $log, $r_last, $cmt_last) = @_;
2565 if ($_optimize_commits && $rev == ($r_last + 1)) {
2566 my $log = libsvn_log_entry($rev,$committer,$date,$log);
2567 $log->{tree} = get_tree_from_treeish($c);
2568 my $cmt = git_commit($log, $cmt_last, $c);
2569 my @diff = command('diff-tree', $cmt, $c);
2570 if (@diff) {
2571 print STDERR "Trees differ: $cmt $c\n",
2572 join('',@diff),"\n";
2573 exit 1;
2574 }
2575 } else {
2576 fetch("$rev=$c");
2577 }
2578}
2579sub libsvn_skip_unknown_revs {
2581 my $err = shift;
2582 my $errno = $err->apr_err();
2583 # Maybe the branch we're tracking didn't
2584 # exist when the repo started, so it's
2585 # not an error if it doesn't, just continue
2586 #
2587 # Wonderfully consistent library, eh?
2588 # 160013 - svn:// and file://
2589 # 175002 - http(s)://
2590 # 175007 - http(s):// (this repo required authorization, too...)
2591 # More codes may be discovered later...
2592 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
2593 return;
2594 }
2595 croak "Error from SVN, ($errno): ", $err->expanded_message,"\n";
2596};
2597# Tie::File seems to be prone to offset errors if revisions get sparse,
2599# it's not that fast, either. Tie::File is also not in Perl 5.6. So
2600# one of my favorite modules is out :< Next up would be one of the DBM
2601# modules, but I'm not sure which is most portable... So I'll just
2602# go with something that's plain-text, but still capable of
2603# being randomly accessed. So here's my ultra-simple fixed-width
2604# database. All records are 40 characters + "\n", so it's easy to seek
2605# to a revision: (41 * rev) is the byte offset.
2606# A record of 40 0s denotes an empty revision.
2607# And yes, it's still pretty fast (faster than Tie::File).
2608sub revdb_set {
2609 my ($file, $rev, $commit) = @_;
2610 length $commit == 40 or croak "arg3 must be a full SHA1 hexsum\n";
2611 open my $fh, '+<', $file or croak $!;
2612 my $offset = $rev * 41;
2613 # assume that append is the common case:
2614 seek $fh, 0, 2 or croak $!;
2615 my $pos = tell $fh;
2616 if ($pos < $offset) {
2617 print $fh (('0' x 40),"\n") x (($offset - $pos) / 41);
2618 }
2619 seek $fh, $offset, 0 or croak $!;
2620 print $fh $commit,"\n";
2621 close $fh or croak $!;
2622}
2623sub revdb_get {
2625 my ($file, $rev) = @_;
2626 my $ret;
2627 my $offset = $rev * 41;
2628 open my $fh, '<', $file or croak $!;
2629 seek $fh, $offset, 0;
2630 if (tell $fh == $offset) {
2631 $ret = readline $fh;
2632 if (defined $ret) {
2633 chomp $ret;
2634 $ret = undef if ($ret =~ /^0{40}$/);
2635 }
2636 }
2637 close $fh or croak $!;
2638 return $ret;
2639}
2640{
2642 my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
2643 $SVN::Node::dir.$SVN::Node::unknown.
2644 $SVN::Node::none.$SVN::Node::file.
2645 $SVN::Node::dir.$SVN::Node::unknown.
2646 $SVN::Auth::SSL::CNMISMATCH.
2647 $SVN::Auth::SSL::NOTYETVALID.
2648 $SVN::Auth::SSL::EXPIRED.
2649 $SVN::Auth::SSL::UNKNOWNCA.
2650 $SVN::Auth::SSL::OTHER;
2651}
2652package SVN::Git::Fetcher;
2654use vars qw/@ISA/;
2655use strict;
2656use warnings;
2657use Carp qw/croak/;
2658use IO::File qw//;
2659# file baton members: path, mode_a, mode_b, pool, fh, blob, base
2661sub new {
2662 my ($class, $git_svn) = @_;
2663 my $self = SVN::Delta::Editor->new;
2664 bless $self, $class;
2665 $self->{c} = $git_svn->{c} if exists $git_svn->{c};
2666 $self->{q} = $git_svn->{q};
2667 $self->{empty} = {};
2668 $self->{dir_prop} = {};
2669 $self->{file_prop} = {};
2670 $self->{absent_dir} = {};
2671 $self->{absent_file} = {};
2672 ($self->{gui}, $self->{ctx}) = command_input_pipe(
2673 qw/update-index -z --index-info/);
2674 require Digest::MD5;
2675 $self;
2676}
2677sub open_root {
2679 { path => '' };
2680}
2681sub open_directory {
2683 my ($self, $path, $pb, $rev) = @_;
2684 { path => $path };
2685}
2686sub delete_entry {
2688 my ($self, $path, $rev, $pb) = @_;
2689 my $gui = $self->{gui};
2690 # remove entire directories.
2692 if (command('ls-tree', $self->{c}, '--', $path) =~ /^040000 tree/) {
2693 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
2694 -r --name-only -z/,
2695 $self->{c}, '--', $path);
2696 local $/ = "\0";
2697 while (<$ls>) {
2698 print $gui '0 ',0 x 40,"\t",$_ or croak $!;
2699 print "\tD\t$_\n" unless $self->{q};
2700 }
2701 print "\tD\t$path/\n" unless $self->{q};
2702 command_close_pipe($ls, $ctx);
2703 $self->{empty}->{$path} = 0
2704 } else {
2705 print $gui '0 ',0 x 40,"\t",$path,"\0" or croak $!;
2706 print "\tD\t$path\n" unless $self->{q};
2707 }
2708 undef;
2709}
2710sub open_file {
2712 my ($self, $path, $pb, $rev) = @_;
2713 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--',$path)
2714 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
2715 unless (defined $mode && defined $blob) {
2716 die "$path was not found in commit $self->{c} (r$rev)\n";
2717 }
2718 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
2719 pool => SVN::Pool->new, action => 'M' };
2720}
2721sub add_file {
2723 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
2724 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2725 delete $self->{empty}->{$dir};
2726 { path => $path, mode_a => 100644, mode_b => 100644,
2727 pool => SVN::Pool->new, action => 'A' };
2728}
2729sub add_directory {
2731 my ($self, $path, $cp_path, $cp_rev) = @_;
2732 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2733 delete $self->{empty}->{$dir};
2734 $self->{empty}->{$path} = 1;
2735 { path => $path };
2736}
2737sub change_dir_prop {
2739 my ($self, $db, $prop, $value) = @_;
2740 $self->{dir_prop}->{$db->{path}} ||= {};
2741 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
2742 undef;
2743}
2744sub absent_directory {
2746 my ($self, $path, $pb) = @_;
2747 $self->{absent_dir}->{$pb->{path}} ||= [];
2748 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
2749 undef;
2750}
2751sub absent_file {
2753 my ($self, $path, $pb) = @_;
2754 $self->{absent_file}->{$pb->{path}} ||= [];
2755 push @{$self->{absent_file}->{$pb->{path}}}, $path;
2756 undef;
2757}
2758sub change_file_prop {
2760 my ($self, $fb, $prop, $value) = @_;
2761 if ($prop eq 'svn:executable') {
2762 if ($fb->{mode_b} != 120000) {
2763 $fb->{mode_b} = defined $value ? 100755 : 100644;
2764 }
2765 } elsif ($prop eq 'svn:special') {
2766 $fb->{mode_b} = defined $value ? 120000 : 100644;
2767 } else {
2768 $self->{file_prop}->{$fb->{path}} ||= {};
2769 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
2770 }
2771 undef;
2772}
2773sub apply_textdelta {
2775 my ($self, $fb, $exp) = @_;
2776 my $fh = IO::File->new_tmpfile;
2777 $fh->autoflush(1);
2778 # $fh gets auto-closed() by SVN::TxDelta::apply(),
2779 # (but $base does not,) so dup() it for reading in close_file
2780 open my $dup, '<&', $fh or croak $!;
2781 my $base = IO::File->new_tmpfile;
2782 $base->autoflush(1);
2783 if ($fb->{blob}) {
2784 defined (my $pid = fork) or croak $!;
2785 if (!$pid) {
2786 open STDOUT, '>&', $base or croak $!;
2787 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
2788 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
2789 }
2790 waitpid $pid, 0;
2791 croak $? if $?;
2792 if (defined $exp) {
2794 seek $base, 0, 0 or croak $!;
2795 my $md5 = Digest::MD5->new;
2796 $md5->addfile($base);
2797 my $got = $md5->hexdigest;
2798 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
2799 "expected: $exp\n",
2800 " got: $got\n" if ($got ne $exp);
2801 }
2802 }
2803 seek $base, 0, 0 or croak $!;
2804 $fb->{fh} = $dup;
2805 $fb->{base} = $base;
2806 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
2807}
2808sub close_file {
2810 my ($self, $fb, $exp) = @_;
2811 my $hash;
2812 my $path = $fb->{path};
2813 if (my $fh = $fb->{fh}) {
2814 seek($fh, 0, 0) or croak $!;
2815 my $md5 = Digest::MD5->new;
2816 $md5->addfile($fh);
2817 my $got = $md5->hexdigest;
2818 die "Checksum mismatch: $path\n",
2819 "expected: $exp\n got: $got\n" if ($got ne $exp);
2820 seek($fh, 0, 0) or croak $!;
2821 if ($fb->{mode_b} == 120000) {
2822 read($fh, my $buf, 5) == 5 or croak $!;
2823 $buf eq 'link ' or die "$path has mode 120000",
2824 "but is not a link\n";
2825 }
2826 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
2827 if (!$pid) {
2828 open STDIN, '<&', $fh or croak $!;
2829 exec qw/git-hash-object -w --stdin/ or croak $!;
2830 }
2831 chomp($hash = do { local $/; <$out> });
2832 close $out or croak $!;
2833 close $fh or croak $!;
2834 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
2835 close $fb->{base} or croak $!;
2836 } else {
2837 $hash = $fb->{blob} or die "no blob information\n";
2838 }
2839 $fb->{pool}->clear;
2840 my $gui = $self->{gui};
2841 print $gui "$fb->{mode_b} $hash\t$path\0" or croak $!;
2842 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $self->{q};
2843 undef;
2844}
2845sub abort_edit {
2847 my $self = shift;
2848 eval { command_close_pipe($self->{gui}, $self->{ctx}) };
2849 $self->SUPER::abort_edit(@_);
2850}
2851sub close_edit {
2853 my $self = shift;
2854 command_close_pipe($self->{gui}, $self->{ctx});
2855 $self->{git_commit_ok} = 1;
2856 $self->SUPER::close_edit(@_);
2857}
2858package SVN::Git::Editor;
2860use vars qw/@ISA/;
2861use strict;
2862use warnings;
2863use Carp qw/croak/;
2864use IO::File;
2865sub new {
2867 my $class = shift;
2868 my $git_svn = shift;
2869 my $self = SVN::Delta::Editor->new(@_);
2870 bless $self, $class;
2871 foreach (qw/svn_path r ra/) {
2872 die "$_ required!\n" unless (defined $git_svn->{$_});
2873 $self->{$_} = $git_svn->{$_};
2874 }
2875 $self->{pool} = SVN::Pool->new;
2876 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
2877 $self->{rm} = { };
2878 require Digest::MD5;
2879 return $self;
2880}
2881sub split_path {
2883 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
2884}
2885sub repo_path {
2887 (defined $_[1] && length $_[1]) ? $_[1] : ''
2888}
2889sub url_path {
2891 my ($self, $path) = @_;
2892 $self->{ra}->{url} . '/' . $self->repo_path($path);
2893}
2894sub rmdirs {
2896 my ($self, $tree_b) = @_;
2897 my $rm = $self->{rm};
2898 delete $rm->{''}; # we never delete the url we're tracking
2899 return unless %$rm;
2900 foreach (keys %$rm) {
2902 my @d = split m#/#, $_;
2903 my $c = shift @d;
2904 $rm->{$c} = 1;
2905 while (@d) {
2906 $c .= '/' . shift @d;
2907 $rm->{$c} = 1;
2908 }
2909 }
2910 delete $rm->{$self->{svn_path}};
2911 delete $rm->{''}; # we never delete the url we're tracking
2912 return unless %$rm;
2913 my ($fh, $ctx) = command_output_pipe(
2915 qw/ls-tree --name-only -r -z/, $tree_b);
2916 local $/ = "\0";
2917 while (<$fh>) {
2918 chomp;
2919 my @dn = split m#/#, $_;
2920 while (pop @dn) {
2921 delete $rm->{join '/', @dn};
2922 }
2923 unless (%$rm) {
2924 close $fh;
2925 return;
2926 }
2927 }
2928 command_close_pipe($fh, $ctx);
2929 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
2931 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
2932 $self->close_directory($bat->{$d}, $p);
2933 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
2934 print "\tD+\t$d/\n" unless $::_q;
2935 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
2936 delete $bat->{$d};
2937 }
2938}
2939sub open_or_add_dir {
2941 my ($self, $full_path, $baton) = @_;
2942 my $t = $self->{ra}->check_path($full_path, $self->{r});
2943 if ($t == $SVN::Node::none) {
2944 return $self->add_directory($full_path, $baton,
2945 undef, -1, $self->{pool});
2946 } elsif ($t == $SVN::Node::dir) {
2947 return $self->open_directory($full_path, $baton,
2948 $self->{r}, $self->{pool});
2949 }
2950 print STDERR "$full_path already exists in repository at ",
2951 "r$self->{r} and it is not a directory (",
2952 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
2953 exit 1;
2954}
2955sub ensure_path {
2957 my ($self, $path) = @_;
2958 my $bat = $self->{bat};
2959 $path = $self->repo_path($path);
2960 return $bat->{''} unless (length $path);
2961 my @p = split m#/+#, $path;
2962 my $c = shift @p;
2963 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
2964 while (@p) {
2965 my $c0 = $c;
2966 $c .= '/' . shift @p;
2967 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
2968 }
2969 return $bat->{$c};
2970}
2971sub A {
2973 my ($self, $m) = @_;
2974 my ($dir, $file) = split_path($m->{file_b});
2975 my $pbat = $self->ensure_path($dir);
2976 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2977 undef, -1);
2978 print "\tA\t$m->{file_b}\n" unless $::_q;
2979 $self->chg_file($fbat, $m);
2980 $self->close_file($fbat,undef,$self->{pool});
2981}
2982sub C {
2984 my ($self, $m) = @_;
2985 my ($dir, $file) = split_path($m->{file_b});
2986 my $pbat = $self->ensure_path($dir);
2987 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2988 $self->url_path($m->{file_a}), $self->{r});
2989 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
2990 $self->chg_file($fbat, $m);
2991 $self->close_file($fbat,undef,$self->{pool});
2992}
2993sub delete_entry {
2995 my ($self, $path, $pbat) = @_;
2996 my $rpath = $self->repo_path($path);
2997 my ($dir, $file) = split_path($rpath);
2998 $self->{rm}->{$dir} = 1;
2999 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
3000}
3001sub R {
3003 my ($self, $m) = @_;
3004 my ($dir, $file) = split_path($m->{file_b});
3005 my $pbat = $self->ensure_path($dir);
3006 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
3007 $self->url_path($m->{file_a}), $self->{r});
3008 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
3009 $self->chg_file($fbat, $m);
3010 $self->close_file($fbat,undef,$self->{pool});
3011 ($dir, $file) = split_path($m->{file_a});
3013 $pbat = $self->ensure_path($dir);
3014 $self->delete_entry($m->{file_a}, $pbat);
3015}
3016sub M {
3018 my ($self, $m) = @_;
3019 my ($dir, $file) = split_path($m->{file_b});
3020 my $pbat = $self->ensure_path($dir);
3021 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
3022 $pbat,$self->{r},$self->{pool});
3023 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
3024 $self->chg_file($fbat, $m);
3025 $self->close_file($fbat,undef,$self->{pool});
3026}
3027sub T { shift->M(@_) }
3029sub change_file_prop {
3031 my ($self, $fbat, $pname, $pval) = @_;
3032 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
3033}
3034sub chg_file {
3036 my ($self, $fbat, $m) = @_;
3037 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
3038 $self->change_file_prop($fbat,'svn:executable','*');
3039 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
3040 $self->change_file_prop($fbat,'svn:executable',undef);
3041 }
3042 my $fh = IO::File->new_tmpfile or croak $!;
3043 if ($m->{mode_b} =~ /^120/) {
3044 print $fh 'link ' or croak $!;
3045 $self->change_file_prop($fbat,'svn:special','*');
3046 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
3047 $self->change_file_prop($fbat,'svn:special',undef);
3048 }
3049 defined(my $pid = fork) or croak $!;
3050 if (!$pid) {
3051 open STDOUT, '>&', $fh or croak $!;
3052 exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!;
3053 }
3054 waitpid $pid, 0;
3055 croak $? if $?;
3056 $fh->flush == 0 or croak $!;
3057 seek $fh, 0, 0 or croak $!;
3058 my $md5 = Digest::MD5->new;
3060 $md5->addfile($fh) or croak $!;
3061 seek $fh, 0, 0 or croak $!;
3062 my $exp = $md5->hexdigest;
3064 my $pool = SVN::Pool->new;
3065 my $atd = $self->apply_textdelta($fbat, undef, $pool);
3066 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
3067 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
3068 $pool->clear;
3069 close $fh or croak $!;
3071}
3072sub D {
3074 my ($self, $m) = @_;
3075 my ($dir, $file) = split_path($m->{file_b});
3076 my $pbat = $self->ensure_path($dir);
3077 print "\tD\t$m->{file_b}\n" unless $::_q;
3078 $self->delete_entry($m->{file_b}, $pbat);
3079}
3080sub close_edit {
3082 my ($self) = @_;
3083 my ($p,$bat) = ($self->{pool}, $self->{bat});
3084 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
3085 $self->close_directory($bat->{$_}, $p);
3086 }
3087 $self->SUPER::close_edit($p);
3088 $p->clear;
3089}
3090sub abort_edit {
3092 my ($self) = @_;
3093 $self->SUPER::abort_edit($self->{pool});
3094 $self->{pool}->clear;
3095}
3096# this drives the editor
3098sub apply_diff {
3099 my ($self, $tree_a, $tree_b) = @_;
3100 my @diff_tree = qw(diff-tree -z -r);
3101 if ($::_cp_similarity) {
3102 push @diff_tree, "-C$::_cp_similarity";
3103 } else {
3104 push @diff_tree, '-C';
3105 }
3106 push @diff_tree, '--find-copies-harder' if $::_find_copies_harder;
3107 push @diff_tree, "-l$::_l" if defined $::_l;
3108 push @diff_tree, $tree_a, $tree_b;
3109 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
3110 my $nl = $/;
3111 local $/ = "\0";
3112 my $state = 'meta';
3113 my @mods;
3114 while (<$diff_fh>) {
3115 chomp $_; # this gets rid of the trailing "\0"
3116 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
3117 $::sha1\s($::sha1)\s
3118 ([MTCRAD])\d*$/xo) {
3119 push @mods, { mode_a => $1, mode_b => $2,
3120 sha1_b => $3, chg => $4 };
3121 if ($4 =~ /^(?:C|R)$/) {
3122 $state = 'file_a';
3123 } else {
3124 $state = 'file_b';
3125 }
3126 } elsif ($state eq 'file_a') {
3127 my $x = $mods[$#mods] or croak "Empty array\n";
3128 if ($x->{chg} !~ /^(?:C|R)$/) {
3129 croak "Error parsing $_, $x->{chg}\n";
3130 }
3131 $x->{file_a} = $_;
3132 $state = 'file_b';
3133 } elsif ($state eq 'file_b') {
3134 my $x = $mods[$#mods] or croak "Empty array\n";
3135 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
3136 croak "Error parsing $_, $x->{chg}\n";
3137 }
3138 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
3139 croak "Error parsing $_, $x->{chg}\n";
3140 }
3141 $x->{file_b} = $_;
3142 $state = 'meta';
3143 } else {
3144 croak "Error parsing $_\n";
3145 }
3146 }
3147 command_close_pipe($diff_fh, $ctx);
3148 $/ = $nl;
3149 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
3151 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @mods) {
3152 my $f = $m->{chg};
3153 if (defined $o{$f}) {
3154 $self->$f($m);
3155 } else {
3156 fatal("Invalid change type: $f\n");
3157 }
3158 }
3159 $self->rmdirs($tree_b) if $::_rmdir;
3160 if (@mods == 0) {
3161 $self->abort_edit;
3162 } else {
3163 $self->close_edit;
3164 }
3165 \@mods;
3166}
3167package Git::SVN::Ra;
3169use vars qw/@ISA $config_dir/;
3170use strict;
3171use warnings;
3172my ($can_do_switch);
3173BEGIN {
3175 # enforce temporary pool usage for some simple functions
3176 my $e;
3177 foreach (qw/get_latest_revnum rev_proplist get_file
3178 check_path get_dir get_uuid get_repos_root/) {
3179 $e .= "sub $_ {
3180 my \$self = shift;
3181 my \$pool = SVN::Pool->new;
3182 my \@ret = \$self->SUPER::$_(\@_,\$pool);
3183 \$pool->clear;
3184 wantarray ? \@ret : \$ret[0]; }\n";
3185 }
3186 eval $e;
3187}
3188sub new {
3190 my ($class, $url) = @_;
3191 SVN::_Core::svn_config_ensure($config_dir, undef);
3192 my ($baton, $callbacks) = SVN::Core::auth_open_helper([
3193 SVN::Client::get_simple_provider(),
3194 SVN::Client::get_ssl_server_trust_file_provider(),
3195 SVN::Client::get_simple_prompt_provider(
3196 \&Git::SVN::Prompt::simple, 2),
3197 SVN::Client::get_ssl_client_cert_prompt_provider(
3198 \&Git::SVN::Prompt::ssl_client_cert, 2),
3199 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
3200 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
3201 SVN::Client::get_username_provider(),
3202 SVN::Client::get_ssl_server_trust_prompt_provider(
3203 \&Git::SVN::Prompt::ssl_server_trust),
3204 SVN::Client::get_username_prompt_provider(
3205 \&Git::SVN::Prompt::username, 2),
3206 ]);
3207 my $config = SVN::Core::config_get_config($config_dir);
3208 my $self = SVN::Ra->new(url => $url, auth => $baton,
3209 config => $config,
3210 pool => SVN::Pool->new,
3211 auth_provider_callbacks => $callbacks);
3212 $self->{svn_path} = $url;
3213 $self->{repos_root} = $self->get_repos_root;
3214 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E/*##;
3215 bless $self, $class;
3216}
3217sub DESTROY {
3219 my $self = shift;
3220 $self->{pool}->clear if $self->{pool};
3221 $self->SUPER::DESTROY(@_);
3222}
3223sub dup {
3225 my ($self) = @_;
3226 my $dup = SVN::Ra->new(pool => SVN::Pool->new,
3227 map { $_ => $self->{$_} } qw/config url
3228 auth auth_provider_callbacks repos_root svn_path/);
3229 bless $dup, ref $self;
3230}
3231sub get_log {
3233 my ($self, @args) = @_;
3234 my $pool = SVN::Pool->new;
3235 $args[4]-- if $args[4] && ! $::_follow_parent;
3236 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
3237 my $ret = $self->SUPER::get_log(@args, $pool);
3238 $pool->clear;
3239 $ret;
3240}
3241sub get_commit_editor {
3243 my ($self, $log, $cb, $pool) = @_;
3244 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
3245 $self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
3246}
3247sub uuid {
3249 my ($self) = @_;
3250 $self->{uuid} ||= $self->get_uuid;
3251}
3252sub gs_do_update {
3254 my ($self, $rev_a, $rev_b, $path, $recurse, $editor) = @_;
3255 my $pool = SVN::Pool->new;
3256 my $reporter = $self->do_update($rev_b, $path, $recurse,
3257 $editor, $pool);
3258 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3259 my $new = ($rev_a == $rev_b);
3260 $reporter->set_path($path, $rev_a, $new, @lock, $pool);
3261 $reporter->finish_report($pool);
3262 $pool->clear;
3263 $editor->{git_commit_ok};
3264}
3265sub gs_do_switch {
3267 my ($self, $rev_a, $rev_b, $path, $recurse, $url_b, $editor) = @_;
3268 my $pool = SVN::Pool->new;
3269 my $reporter = $self->do_switch($rev_b, $path, $recurse,
3270 $url_b, $editor, $pool);
3271 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3272 $reporter->set_path($path, $rev_a, 0, @lock, $pool);
3273 $reporter->finish_report($pool);
3274 $pool->clear;
3275 $editor->{git_commit_ok};
3276}
3277sub can_do_switch {
3279 my $self = shift;
3280 unless (defined $can_do_switch) {
3281 my $pool = SVN::Pool->new;
3282 my $rep = eval {
3283 $self->do_switch(1, '', 0, $self->{url},
3284 SVN::Delta::Editor->new, $pool);
3285 };
3286 if ($@) {
3287 $can_do_switch = 0;
3288 } else {
3289 $rep->abort_report($pool);
3290 $can_do_switch = 1;
3291 }
3292 $pool->clear;
3293 }
3294 $can_do_switch;
3295}
3296package Git::SVN::Log;
3298use strict;
3299use warnings;
3300use POSIX qw/strftime/;
3301use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
3302 %rusers $show_commit $incremental/;
3303my $l_fmt;
3304sub cmt_showable {
3306 my ($c) = @_;
3307 return 1 if defined $c->{r};
3308 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
3309 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
3310 my @log = command(qw/cat-file commit/, $c->{c});
3311 shift @log while ($log[0] ne "\n");
3312 shift @log;
3313 @{$c->{l}} = grep !/^git-svn-id: /, @log;
3314 (undef, $c->{r}, undef) = ::extract_metadata(
3316 (grep(/^git-svn-id: /, @log))[-1]);
3317 }
3318 return defined $c->{r};
3319}
3320sub log_use_color {
3322 return 1 if $color;
3323 my ($dc, $dcvar);
3324 $dcvar = 'color.diff';
3325 $dc = `git-config --get $dcvar`;
3326 if ($dc eq '') {
3327 # nothing at all; fallback to "diff.color"
3328 $dcvar = 'diff.color';
3329 $dc = `git-config --get $dcvar`;
3330 }
3331 chomp($dc);
3332 if ($dc eq 'auto') {
3333 my $pc;
3334 $pc = `git-config --get color.pager`;
3335 if ($pc eq '') {
3336 # does not have it -- fallback to pager.color
3337 $pc = `git-config --bool --get pager.color`;
3338 }
3339 else {
3340 $pc = `git-config --bool --get color.pager`;
3341 if ($?) {
3342 $pc = 'false';
3343 }
3344 }
3345 chomp($pc);
3346 if (-t *STDOUT || (defined $pager && $pc eq 'true')) {
3347 return ($ENV{TERM} && $ENV{TERM} ne 'dumb');
3348 }
3349 return 0;
3350 }
3351 return 0 if $dc eq 'never';
3352 return 1 if $dc eq 'always';
3353 chomp($dc = `git-config --bool --get $dcvar`);
3354 return ($dc eq 'true');
3355}
3356sub git_svn_log_cmd {
3358 my ($r_min, $r_max) = @_;
3359 my $gs = Git::SVN->_new;
3360 my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
3361 $gs->refname);
3362 push @cmd, '-r' unless $non_recursive;
3363 push @cmd, qw/--raw --name-status/ if $verbose;
3364 push @cmd, '--color' if log_use_color();
3365 return @cmd unless defined $r_max;
3366 if ($r_max == $r_min) {
3367 push @cmd, '--max-count=1';
3368 if (my $c = $gs->rev_db_get($r_max)) {
3369 push @cmd, $c;
3370 }
3371 } else {
3372 my ($c_min, $c_max);
3373 $c_max = $gs->rev_db_get($r_max);
3374 $c_min = $gs->rev_db_get($r_min);
3375 if (defined $c_min && defined $c_max) {
3376 if ($r_max > $r_max) {
3377 push @cmd, "$c_min..$c_max";
3378 } else {
3379 push @cmd, "$c_max..$c_min";
3380 }
3381 } elsif ($r_max > $r_min) {
3382 push @cmd, $c_max;
3383 } else {
3384 push @cmd, $c_min;
3385 }
3386 }
3387 return @cmd;
3388}
3389# adapted from pager.c
3391sub config_pager {
3392 $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
3393 if (!defined $pager) {
3394 $pager = 'less';
3395 } elsif (length $pager == 0 || $pager eq 'cat') {
3396 $pager = undef;
3397 }
3398}
3399sub run_pager {
3401 return unless -t *STDOUT;
3402 pipe my $rfd, my $wfd or return;
3403 defined(my $pid = fork) or ::fatal "Can't fork: $!\n";
3404 if (!$pid) {
3405 open STDOUT, '>&', $wfd or
3406 ::fatal "Can't redirect to stdout: $!\n";
3407 return;
3408 }
3409 open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!\n";
3410 $ENV{LESS} ||= 'FRSX';
3411 exec $pager or ::fatal "Can't run pager: $! ($pager)\n";
3412}
3413sub get_author_info {
3415 my ($dest, $author, $t, $tz) = @_;
3416 $author =~ s/(?:^\s*|\s*$)//g;
3417 $dest->{a_raw} = $author;
3418 my $au;
3419 if ($_authors) {
3420 $au = $rusers{$author} || undef;
3421 }
3422 if (!$au) {
3423 ($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
3424 }
3425 $dest->{t} = $t;
3426 $dest->{tz} = $tz;
3427 $dest->{a} = $au;
3428 # Date::Parse isn't in the standard Perl distro :(
3429 if ($tz =~ s/^\+//) {
3430 $t += ::tz_to_s_offset($tz);
3431 } elsif ($tz =~ s/^\-//) {
3432 $t -= ::tz_to_s_offset($tz);
3433 }
3434 $dest->{t_utc} = $t;
3435}
3436sub process_commit {
3438 my ($c, $r_min, $r_max, $defer) = @_;
3439 if (defined $r_min && defined $r_max) {
3440 if ($r_min == $c->{r} && $r_min == $r_max) {
3441 show_commit($c);
3442 return 0;
3443 }
3444 return 1 if $r_min == $r_max;
3445 if ($r_min < $r_max) {
3446 # we need to reverse the print order
3447 return 0 if (defined $limit && --$limit < 0);
3448 push @$defer, $c;
3449 return 1;
3450 }
3451 if ($r_min != $r_max) {
3452 return 1 if ($r_min < $c->{r});
3453 return 1 if ($r_max > $c->{r});
3454 }
3455 }
3456 return 0 if (defined $limit && --$limit < 0);
3457 show_commit($c);
3458 return 1;
3459}
3460sub show_commit {
3462 my $c = shift;
3463 if ($oneline) {
3464 my $x = "\n";
3465 if (my $l = $c->{l}) {
3466 while ($l->[0] =~ /^\s*$/) { shift @$l }
3467 $x = $l->[0];
3468 }
3469 $l_fmt ||= 'A' . length($c->{r});
3470 print 'r',pack($l_fmt, $c->{r}),' | ';
3471 print "$c->{c} | " if $show_commit;
3472 print $x;
3473 } else {
3474 show_commit_normal($c);
3475 }
3476}
3477sub show_commit_changed_paths {
3479 my ($c) = @_;
3480 return unless $c->{changed};
3481 print "Changed paths:\n", @{$c->{changed}};
3482}
3483sub show_commit_normal {
3485 my ($c) = @_;
3486 print '-' x72, "\nr$c->{r} | ";
3487 print "$c->{c} | " if $show_commit;
3488 print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
3489 localtime($c->{t_utc})), ' | ';
3490 my $nr_line = 0;
3491 if (my $l = $c->{l}) {
3493 while ($l->[$#$l] eq "\n" && $#$l > 0
3494 && $l->[($#$l - 1)] eq "\n") {
3495 pop @$l;
3496 }
3497 $nr_line = scalar @$l;
3498 if (!$nr_line) {
3499 print "1 line\n\n\n";
3500 } else {
3501 if ($nr_line == 1) {
3502 $nr_line = '1 line';
3503 } else {
3504 $nr_line .= ' lines';
3505 }
3506 print $nr_line, "\n";
3507 show_commit_changed_paths($c);
3508 print "\n";
3509 print $_ foreach @$l;
3510 }
3511 } else {
3512 print "1 line\n";
3513 show_commit_changed_paths($c);
3514 print "\n";
3515 }
3517 foreach my $x (qw/raw diff/) {
3518 if ($c->{$x}) {
3519 print "\n";
3520 print $_ foreach @{$c->{$x}}
3521 }
3522 }
3523}
3524sub cmd_show_log {
3526 my (@args) = @_;
3527 my ($r_min, $r_max);
3528 my $r_last = -1; # prevent dupes
3529 if (defined $TZ) {
3530 $ENV{TZ} = $TZ;
3531 } else {
3532 delete $ENV{TZ};
3533 }
3534 if (defined $::_revision) {
3535 if ($::_revision =~ /^(\d+):(\d+)$/) {
3536 ($r_min, $r_max) = ($1, $2);
3537 } elsif ($::_revision =~ /^\d+$/) {
3538 $r_min = $r_max = $::_revision;
3539 } else {
3540 ::fatal "-r$::_revision is not supported, use ",
3541 "standard \'git log\' arguments instead\n";
3542 }
3543 }
3544 config_pager();
3546 @args = (git_svn_log_cmd($r_min, $r_max), @args);
3547 my $log = command_output_pipe(@args);
3548 run_pager();
3549 my (@k, $c, $d);
3550 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
3551 while (<$log>) {
3552 if (/^${esc_color}commit ($::sha1_short)/o) {
3553 my $cmt = $1;
3554 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
3555 $r_last = $c->{r};
3556 process_commit($c, $r_min, $r_max, \@k) or
3557 goto out;
3558 }
3559 $d = undef;
3560 $c = { c => $cmt };
3561 } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
3562 get_author_info($c, $1, $2, $3);
3563 } elsif (/^${esc_color}(?:tree|parent|committer) /o) {
3564 # ignore
3565 } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
3566 push @{$c->{raw}}, $_;
3567 } elsif (/^${esc_color}[ACRMDT]\t/) {
3568 # we could add $SVN->{svn_path} here, but that requires
3569 # remote access at the moment (repo_path_split)...
3570 s#^(${esc_color})([ACRMDT])\t#$1 $2 #o;
3571 push @{$c->{changed}}, $_;
3572 } elsif (/^${esc_color}diff /o) {
3573 $d = 1;
3574 push @{$c->{diff}}, $_;
3575 } elsif ($d) {
3576 push @{$c->{diff}}, $_;
3577 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
3578 ($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
3579 } elsif (s/^${esc_color} //o) {
3580 push @{$c->{l}}, $_;
3581 }
3582 }
3583 if ($c && defined $c->{r} && $c->{r} != $r_last) {
3584 $r_last = $c->{r};
3585 process_commit($c, $r_min, $r_max, \@k);
3586 }
3587 if (@k) {
3588 my $swap = $r_max;
3589 $r_max = $r_min;
3590 $r_min = $swap;
3591 process_commit($_, $r_min, $r_max) foreach reverse @k;
3592 }
3593out:
3594 close $log;
3595 print '-' x72,"\n" unless $incremental || $oneline;
3596}
3597__END__
3599Data structures:
3601$log_entry hashref as returned by libsvn_log_entry()
3603{
3604 log => 'whitespace-formatted log entry
3605', # trailing newline is preserved
3606 revision => '8', # integer
3607 date => '2004-02-24T17:01:44.108345Z', # commit date
3608 author => 'committer name'
3609};
3610@mods = array of diff-index line hashes, each element represents one line
3612 of diff-index output
3613diff-index line ($m hash)
3615{
3616 mode_a => first column of diff-index output, no leading ':',
3617 mode_b => second column of diff-index output,
3618 sha1_b => sha1sum of the final blob,
3619 chg => change type [MCRADT],
3620 file_a => original file name of a file (iff chg is 'C' or 'R')
3621 file_b => new/current file name of a file (any chg)
3622}
3623;
3624# retval of read_url_paths{,_all}();
3626$l_map = {
3627 # repository root url
3628 'https://svn.musicpd.org' => {
3629 # repository path # GIT_SVN_ID
3630 'mpd/trunk' => 'trunk',
3631 'mpd/tags/0.11.5' => 'tags/0.11.5',
3632 },
3633}
3634Notes:
3636 I don't trust the each() function on unless I created %hash myself
3637 because the internal iterator may not have started at base.