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1 #!/usr/bin/env perl
2 # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3 # License: GPL v2 or later
4 use warnings;
5 use strict;
6 use vars qw/ $AUTHOR $VERSION
7 $SVN_URL
8 $GIT_SVN_INDEX $GIT_SVN
9 $GIT_DIR $GIT_SVN_DIR $REVDB/;
10 $AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
11 $VERSION = '@@GIT_VERSION@@';
13 use Cwd qw/abs_path/;
14 $GIT_DIR = abs_path($ENV{GIT_DIR} || '.git');
15 $ENV{GIT_DIR} = $GIT_DIR;
17 my $LC_ALL = $ENV{LC_ALL};
18 my $TZ = $ENV{TZ};
19 # make sure the svn binary gives consistent output between locales and TZs:
20 $ENV{TZ} = 'UTC';
21 $ENV{LC_ALL} = 'C';
22 $| = 1; # unbuffer STDOUT
24 # properties that we do not log:
25 my %SKIP = ( 'svn:wc:ra_dav:version-url' => 1,
26 'svn:special' => 1,
27 'svn:executable' => 1,
28 'svn:entry:committed-rev' => 1,
29 'svn:entry:last-author' => 1,
30 'svn:entry:uuid' => 1,
31 'svn:entry:committed-date' => 1,
32 );
34 sub fatal (@) { print STDERR @_; exit 1 }
35 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
36 require SVN::Ra;
37 require SVN::Delta;
38 if ($SVN::Core::VERSION lt '1.1.0') {
39 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)\n";
40 }
41 push @Git::SVN::Ra::ISA, 'SVN::Ra';
42 push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
43 push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
44 use Carp qw/croak/;
45 use IO::File qw//;
46 use File::Basename qw/dirname basename/;
47 use File::Path qw/mkpath/;
48 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
49 use POSIX qw/strftime/;
50 use IPC::Open3;
51 use Memoize;
52 use Git qw/command command_oneline command_noisy
53 command_output_pipe command_input_pipe command_close_pipe/;
54 memoize('revisions_eq');
55 memoize('cmt_metadata');
56 memoize('get_commit_time');
58 my ($SVN);
60 my $_optimize_commits = 1 unless $ENV{GIT_SVN_NO_OPTIMIZE_COMMITS};
61 my $sha1 = qr/[a-f\d]{40}/;
62 my $sha1_short = qr/[a-f\d]{4,40}/;
63 my $_esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
64 my ($_revision,$_stdin,$_no_ignore_ext,$_no_stop_copy,$_help,$_rmdir,$_edit,
65 $_find_copies_harder, $_l, $_cp_similarity, $_cp_remote,
66 $_repack, $_repack_nr, $_repack_flags, $_q,
67 $_message, $_file, $_no_metadata,
68 $_template, $_shared, $_no_default_regex, $_no_graft_copy,
69 $_limit, $_verbose, $_incremental, $_oneline, $_l_fmt, $_show_commit,
70 $_version, $_upgrade, $_authors, $_branch_all_refs, @_opt_m,
71 $_merge, $_strategy, $_dry_run, $_ignore_nodate, $_non_recursive,
72 $_pager, $_color, $_prefix);
73 my (@_branch_from, %tree_map, %users, %rusers, %equiv);
74 my ($_svn_can_do_switch);
75 my @repo_path_split_cache;
76 use vars qw/$_follow_parent/;
78 my %fc_opts = ( 'no-ignore-externals' => \$_no_ignore_ext,
79 'branch|b=s' => \@_branch_from,
80 'follow-parent|follow' => \$_follow_parent,
81 'branch-all-refs|B' => \$_branch_all_refs,
82 'authors-file|A=s' => \$_authors,
83 'repack:i' => \$_repack,
84 'no-metadata' => \$_no_metadata,
85 'quiet|q' => \$_q,
86 'username=s' => \$Git::SVN::Prompt::_username,
87 'config-dir=s' => \$Git::SVN::Ra::config_dir,
88 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
89 'ignore-nodate' => \$_ignore_nodate,
90 'repack-flags|repack-args|repack-opts=s' => \$_repack_flags);
92 my ($_trunk, $_tags, $_branches);
93 my %multi_opts = ( 'trunk|T=s' => \$_trunk,
94 'tags|t=s' => \$_tags,
95 'branches|b=s' => \$_branches );
96 my %init_opts = ( 'template=s' => \$_template, 'shared' => \$_shared );
97 my %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 );
104 my %cmd = (
105 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
106 { 'revision|r=s' => \$_revision, %fc_opts } ],
107 init => [ \&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' => [ \&show_ignore, "Show svn:ignore listings",
118 { 'revision|r=i' => \$_revision } ],
119 rebuild => [ \&rebuild, "Rebuild git-svn metadata (after git clone)",
120 { 'no-ignore-externals' => \$_no_ignore_ext,
121 'copy-remote|remote=s' => \$_cp_remote,
122 'upgrade' => \$_upgrade } ],
123 'graft-branches' => [ \&graft_branches,
124 'Detect merges/branches from already imported history',
125 { 'merge-rx|m' => \@_opt_m,
126 'branch|b=s' => \@_branch_from,
127 'branch-all-refs|B' => \$_branch_all_refs,
128 'no-default-regex' => \$_no_default_regex,
129 'no-graft-copy' => \$_no_graft_copy } ],
130 'multi-init' => [ \&multi_init,
131 'Initialize multiple trees (like git-svnimport)',
132 { %multi_opts, %init_opts,
133 'revision|r=i' => \$_revision,
134 'username=s' => \$Git::SVN::Prompt::_username,
135 'config-dir=s' => \$Git::SVN::Ra::config_dir,
136 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
137 'prefix=s' => \$_prefix,
138 } ],
139 'multi-fetch' => [ \&multi_fetch,
140 'Fetch multiple trees (like git-svnimport)',
141 \%fc_opts ],
142 'log' => [ \&show_log, 'Show commit logs',
143 { 'limit=i' => \$_limit,
144 'revision|r=s' => \$_revision,
145 'verbose|v' => \$_verbose,
146 'incremental' => \$_incremental,
147 'oneline' => \$_oneline,
148 'show-commit' => \$_show_commit,
149 'non-recursive' => \$_non_recursive,
150 'authors-file|A=s' => \$_authors,
151 'color' => \$_color,
152 'pager=s' => \$_pager,
153 } ],
154 'commit-diff' => [ \&commit_diff, '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 );
161 my $cmd;
162 for (my $i = 0; $i < @ARGV; $i++) {
163 if (defined $cmd{$ARGV[$i]}) {
164 $cmd = $ARGV[$i];
165 splice @ARGV, $i, 1;
166 last;
167 }
168 };
170 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
172 read_repo_config(\%opts);
173 my $rv = GetOptions(%opts, 'help|H|h' => \$_help,
174 'version|V' => \$_version,
175 'id|i=s' => \$GIT_SVN);
176 exit 1 if (!$rv && $cmd ne 'log');
178 set_default_vals();
179 usage(0) if $_help;
180 version() if $_version;
181 usage(1) unless defined $cmd;
182 init_vars();
183 load_authors() if $_authors;
184 load_all_refs() if $_branch_all_refs;
185 migration_check() unless $cmd =~ /^(?:init|rebuild|multi-init|commit-diff)$/;
186 $cmd{$cmd}->[0]->(@ARGV);
187 exit 0;
189 ####################### primary functions ######################
190 sub usage {
191 my $exit = shift || 0;
192 my $fd = $exit ? \*STDERR : \*STDOUT;
193 print $fd <<"";
194 git-svn - bidirectional operations between a single Subversion tree and git
195 Usage: $0 <command> [options] [arguments]\n
197 print $fd "Available commands:\n" unless $cmd;
199 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
212 arbitrary identifier if you're tracking multiple SVN branches/repositories in
213 one git repository and want to keep them separate. See git-svn(1) for more
214 information.
216 exit $exit;
217 }
219 sub version {
220 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
221 exit 0;
222 }
224 sub rebuild {
225 if (!verify_ref("refs/remotes/$GIT_SVN^0")) {
226 copy_remote_ref();
227 }
228 $SVN_URL = shift or undef;
229 my $newest_rev = 0;
230 if ($_upgrade) {
231 command_noisy('update-ref',"refs/remotes/$GIT_SVN","
232 $GIT_SVN-HEAD");
233 } else {
234 check_upgrade_needed();
235 }
237 my ($rev_list, $ctx) = command_output_pipe("rev-list",
238 "refs/remotes/$GIT_SVN");
239 my $latest;
240 my $svn_uuid;
241 while (<$rev_list>) {
242 chomp;
243 my $c = $_;
244 croak "Non-SHA1: $c\n" unless $c =~ /^$sha1$/o;
245 my @commit = grep(/^git-svn-id: /,
246 command(qw/cat-file commit/, $c));
247 next if (!@commit); # skip merges
248 my ($url, $rev, $uuid) = extract_metadata($commit[$#commit]);
249 if (!defined $rev || !$uuid) {
250 croak "Unable to extract revision or UUID from ",
251 "$c, $commit[$#commit]\n";
252 }
254 # if we merged or otherwise started elsewhere, this is
255 # how we break out of it
256 next if (defined $svn_uuid && ($uuid ne $svn_uuid));
257 next if (defined $SVN_URL && defined $url && ($url ne $SVN_URL));
259 unless (defined $latest) {
260 if (!$SVN_URL && !$url) {
261 croak "SVN repository location required: $url\n";
262 }
263 $SVN_URL ||= $url;
264 $svn_uuid ||= $uuid;
265 setup_git_svn();
266 $latest = $rev;
267 }
268 revdb_set($REVDB, $rev, $c);
269 print "r$rev = $c\n";
270 $newest_rev = $rev if ($rev > $newest_rev);
271 }
272 command_close_pipe($rev_list, $ctx);
273 }
275 sub init {
276 my $url = shift or die "SVN repository location required " .
277 "as a command-line argument\n";
278 $url =~ s!/+$!!; # strip trailing slash
280 if (my $repo_path = shift) {
281 unless (-d $repo_path) {
282 mkpath([$repo_path]);
283 }
284 $GIT_DIR = $ENV{GIT_DIR} = $repo_path . "/.git";
285 init_vars();
286 }
288 $SVN_URL = $url;
289 unless (-d $GIT_DIR) {
290 my @init_db = ('init');
291 push @init_db, "--template=$_template" if defined $_template;
292 push @init_db, "--shared" if defined $_shared;
293 command_noisy(@init_db);
294 }
295 setup_git_svn();
296 }
298 sub cmd_fetch {
299 fetch_child_id($GIT_SVN, @_);
300 }
302 sub fetch {
303 check_upgrade_needed();
304 $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
305 my $ret = fetch_lib(@_);
306 if ($ret->{commit} && !verify_ref('refs/heads/master^0')) {
307 command_noisy(qw(update-ref refs/heads/master),$ret->{commit});
308 }
309 return $ret;
310 }
312 sub fetch_lib {
313 my (@parents) = @_;
314 $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
315 $SVN ||= Git::SVN::Ra->new($SVN_URL);
316 my ($last_rev, $last_commit) = svn_grab_base_rev();
317 my ($base, $head) = libsvn_parse_revision($last_rev);
318 if ($base > $head) {
319 return { revision => $last_rev, commit => $last_commit }
320 }
321 my $index = set_index($GIT_SVN_INDEX);
323 # limit ourselves and also fork() since get_log won't release memory
324 # after processing a revision and SVN stuff seems to leak
325 my $inc = 1000;
326 my ($min, $max) = ($base, $head < $base+$inc ? $head : $base+$inc);
327 if (defined $last_commit) {
328 unless (-e $GIT_SVN_INDEX) {
329 command_noisy('read-tree', $last_commit);
330 }
331 my $x = command_oneline('write-tree');
332 my ($y) = (command(qw/cat-file commit/, $last_commit)
333 =~ /^tree ($sha1)/m);
334 if ($y ne $x) {
335 unlink $GIT_SVN_INDEX or croak $!;
336 command_noisy('read-tree', $last_commit);
337 }
338 $x = command_oneline('write-tree');
339 if ($y ne $x) {
340 print STDERR "trees ($last_commit) $y != $x\n",
341 "Something is seriously wrong...\n";
342 }
343 }
344 while (1) {
345 # fork, because using SVN::Pool with get_log() still doesn't
346 # seem to help enough to keep memory usage down.
347 defined(my $pid = fork) or croak $!;
348 if (!$pid) {
349 $SVN::Error::handler = \&libsvn_skip_unknown_revs;
351 # Yes I'm perfectly aware that the fourth argument
352 # below is the limit revisions number. Unfortunately
353 # performance sucks with it enabled, so it's much
354 # faster to fetch revision ranges instead of relying
355 # on the limiter.
356 $SVN->dup->get_log([''], $min, $max, 0, 1, 1,
357 sub {
358 my $log_msg;
359 if ($last_commit) {
360 $log_msg = libsvn_fetch(
361 $last_commit, @_);
362 $last_commit = git_commit(
363 $log_msg,
364 $last_commit,
365 @parents);
366 } else {
367 $log_msg = libsvn_new_tree(@_);
368 $last_commit = git_commit(
369 $log_msg, @parents);
370 }
371 });
372 exit 0;
373 }
374 waitpid $pid, 0;
375 croak $? if $?;
376 ($last_rev, $last_commit) = svn_grab_base_rev();
377 last if ($max >= $head);
378 $min = $max + 1;
379 $max += $inc;
380 $max = $head if ($max > $head);
381 $SVN = Git::SVN::Ra->new($SVN_URL);
382 }
383 restore_index($index);
384 return { revision => $last_rev, commit => $last_commit };
385 }
387 sub commit {
388 my (@commits) = @_;
389 check_upgrade_needed();
390 if ($_stdin || !@commits) {
391 print "Reading from stdin...\n";
392 @commits = ();
393 while (<STDIN>) {
394 if (/\b($sha1_short)\b/o) {
395 unshift @commits, $1;
396 }
397 }
398 }
399 my @revs;
400 foreach my $c (@commits) {
401 my @tmp = command('rev-parse',$c);
402 if (scalar @tmp == 1) {
403 push @revs, $tmp[0];
404 } elsif (scalar @tmp > 1) {
405 push @revs, reverse(command('rev-list',@tmp));
406 } else {
407 die "Failed to rev-parse $c\n";
408 }
409 }
410 commit_lib(@revs);
411 print "Done committing ",scalar @revs," revisions to SVN\n";
412 }
414 sub commit_lib {
415 my (@revs) = @_;
416 my ($r_last, $cmt_last) = svn_grab_base_rev();
417 defined $r_last or die "Must have an existing revision to commit\n";
418 my $fetched = fetch();
419 if ($r_last != $fetched->{revision}) {
420 print STDERR "There are new revisions that were fetched ",
421 "and need to be merged (or acknowledged) ",
422 "before committing.\n",
423 "last rev: $r_last\n",
424 " current: $fetched->{revision}\n";
425 exit 1;
426 }
427 my $commit_msg = "$GIT_SVN_DIR/.svn-commit.tmp.$$";
429 my $repo;
430 set_svn_commit_env();
431 foreach my $c (@revs) {
432 my $log_msg = get_commit_message($c, $commit_msg);
434 # fork for each commit because there's a memory leak I
435 # can't track down... (it's probably in the SVN code)
436 defined(my $pid = open my $fh, '-|') or croak $!;
437 if (!$pid) {
438 my $pool = SVN::Pool->new;
439 my $ed = SVN::Git::Editor->new(
440 { r => $r_last,
441 ra => $SVN->dup,
442 c => $c,
443 svn_path => $SVN->{svn_path},
444 },
445 $SVN->get_commit_editor(
446 $log_msg->{msg},
447 sub {
448 libsvn_commit_cb(
449 @_, $c,
450 $log_msg->{msg},
451 $r_last,
452 $cmt_last)
453 }, $pool)
454 );
455 my $mods = libsvn_checkout_tree($cmt_last, $c, $ed);
456 if (@$mods == 0) {
457 print "No changes\nr$r_last = $cmt_last\n";
458 $ed->abort_edit;
459 } else {
460 $ed->close_edit;
461 }
462 $pool->clear;
463 exit 0;
464 }
465 my ($r_new, $cmt_new, $no);
466 while (<$fh>) {
467 print $_;
468 chomp;
469 if (/^r(\d+) = ($sha1)$/o) {
470 ($r_new, $cmt_new) = ($1, $2);
471 } elsif ($_ eq 'No changes') {
472 $no = 1;
473 }
474 }
475 close $fh or exit 1;
476 if (! defined $r_new && ! defined $cmt_new) {
477 unless ($no) {
478 die "Failed to parse revision information\n";
479 }
480 } else {
481 ($r_last, $cmt_last) = ($r_new, $cmt_new);
482 }
483 }
484 $ENV{LC_ALL} = 'C';
485 unlink $commit_msg;
486 }
488 sub dcommit {
489 my $head = shift || 'HEAD';
490 my $gs = "refs/remotes/$GIT_SVN";
491 my @refs = command(qw/rev-list --no-merges/, "$gs..$head");
492 my $last_rev;
493 foreach my $d (reverse @refs) {
494 if (!verify_ref("$d~1")) {
495 die "Commit $d\n",
496 "has no parent commit, and therefore ",
497 "nothing to diff against.\n",
498 "You should be working from a repository ",
499 "originally created by git-svn\n";
500 }
501 unless (defined $last_rev) {
502 (undef, $last_rev, undef) = cmt_metadata("$d~1");
503 unless (defined $last_rev) {
504 die "Unable to extract revision information ",
505 "from commit $d~1\n";
506 }
507 }
508 if ($_dry_run) {
509 print "diff-tree $d~1 $d\n";
510 } else {
511 if (my $r = commit_diff("$d~1", $d, undef, $last_rev)) {
512 $last_rev = $r;
513 } # else: no changes, same $last_rev
514 }
515 }
516 return if $_dry_run;
517 fetch();
518 my @diff = command('diff-tree', 'HEAD', $gs, '--');
519 my @finish;
520 if (@diff) {
521 @finish = qw/rebase/;
522 push @finish, qw/--merge/ if $_merge;
523 push @finish, "--strategy=$_strategy" if $_strategy;
524 print STDERR "W: HEAD and $gs differ, using @finish:\n", @diff;
525 } else {
526 print "No changes between current HEAD and $gs\n",
527 "Resetting to the latest $gs\n";
528 @finish = qw/reset --mixed/;
529 }
530 command_noisy(@finish, $gs);
531 }
533 sub show_ignore {
534 $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
535 my $repo;
536 $SVN ||= Git::SVN::Ra->new($SVN_URL);
537 my $r = defined $_revision ? $_revision : $SVN->get_latest_revnum;
538 libsvn_traverse_ignore(\*STDOUT, '', $r);
539 }
541 sub graft_branches {
542 my $gr_file = "$GIT_DIR/info/grafts";
543 my ($grafts, $comments) = read_grafts($gr_file);
544 my $gr_sha1;
546 if (%$grafts) {
547 # temporarily disable our grafts file to make this idempotent
548 chomp($gr_sha1 = command(qw/hash-object -w/,$gr_file));
549 rename $gr_file, "$gr_file~$gr_sha1" or croak $!;
550 }
552 my $l_map = read_url_paths();
553 my @re = map { qr/$_/is } @_opt_m if @_opt_m;
554 unless ($_no_default_regex) {
555 push @re, (qr/\b(?:merge|merging|merged)\s+with\s+([\w\.\-]+)/i,
556 qr/\b(?:merge|merging|merged)\s+([\w\.\-]+)/i,
557 qr/\b(?:from|of)\s+([\w\.\-]+)/i );
558 }
559 foreach my $u (keys %$l_map) {
560 if (@re) {
561 foreach my $p (keys %{$l_map->{$u}}) {
562 graft_merge_msg($grafts,$l_map,$u,$p,@re);
563 }
564 }
565 unless ($_no_graft_copy) {
566 graft_file_copy_lib($grafts,$l_map,$u);
567 }
568 }
569 graft_tree_joins($grafts);
571 write_grafts($grafts, $comments, $gr_file);
572 unlink "$gr_file~$gr_sha1" if $gr_sha1;
573 }
575 sub multi_init {
576 my $url = shift;
577 unless (defined $_trunk || defined $_branches || defined $_tags) {
578 usage(1);
579 }
580 if (defined $_trunk) {
581 my $trunk_url = complete_svn_url($url, $_trunk);
582 my $ch_id;
583 if ($GIT_SVN eq 'git-svn') {
584 $ch_id = 1;
585 $GIT_SVN = $ENV{GIT_SVN_ID} = 'trunk';
586 }
587 init_vars();
588 unless (-d $GIT_SVN_DIR) {
589 if ($ch_id) {
590 print "GIT_SVN_ID set to 'trunk' for ",
591 "$trunk_url ($_trunk)\n";
592 }
593 init($trunk_url);
594 command_noisy('config', 'svn.trunk', $trunk_url);
595 }
596 }
597 $_prefix = '' unless defined $_prefix;
598 complete_url_ls_init($url, $_branches, '--branches/-b', $_prefix);
599 complete_url_ls_init($url, $_tags, '--tags/-t', $_prefix . 'tags/');
600 }
602 sub multi_fetch {
603 # try to do trunk first, since branches/tags
604 # may be descended from it.
605 if (-e "$GIT_DIR/svn/trunk/info/url") {
606 fetch_child_id('trunk', @_);
607 }
608 rec_fetch('', "$GIT_DIR/svn", @_);
609 }
611 sub show_log {
612 my (@args) = @_;
613 my ($r_min, $r_max);
614 my $r_last = -1; # prevent dupes
615 rload_authors() if $_authors;
616 if (defined $TZ) {
617 $ENV{TZ} = $TZ;
618 } else {
619 delete $ENV{TZ};
620 }
621 if (defined $_revision) {
622 if ($_revision =~ /^(\d+):(\d+)$/) {
623 ($r_min, $r_max) = ($1, $2);
624 } elsif ($_revision =~ /^\d+$/) {
625 $r_min = $r_max = $_revision;
626 } else {
627 print STDERR "-r$_revision is not supported, use ",
628 "standard \'git log\' arguments instead\n";
629 exit 1;
630 }
631 }
633 config_pager();
634 @args = (git_svn_log_cmd($r_min, $r_max), @args);
635 my $log = command_output_pipe(@args);
636 run_pager();
637 my (@k, $c, $d);
639 while (<$log>) {
640 if (/^${_esc_color}commit ($sha1_short)/o) {
641 my $cmt = $1;
642 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
643 $r_last = $c->{r};
644 process_commit($c, $r_min, $r_max, \@k) or
645 goto out;
646 }
647 $d = undef;
648 $c = { c => $cmt };
649 } elsif (/^${_esc_color}author (.+) (\d+) ([\-\+]?\d+)$/) {
650 get_author_info($c, $1, $2, $3);
651 } elsif (/^${_esc_color}(?:tree|parent|committer) /) {
652 # ignore
653 } elsif (/^${_esc_color}:\d{6} \d{6} $sha1_short/o) {
654 push @{$c->{raw}}, $_;
655 } elsif (/^${_esc_color}[ACRMDT]\t/) {
656 # we could add $SVN->{svn_path} here, but that requires
657 # remote access at the moment (repo_path_split)...
658 s#^(${_esc_color})([ACRMDT])\t#$1 $2 #;
659 push @{$c->{changed}}, $_;
660 } elsif (/^${_esc_color}diff /) {
661 $d = 1;
662 push @{$c->{diff}}, $_;
663 } elsif ($d) {
664 push @{$c->{diff}}, $_;
665 } elsif (/^${_esc_color} (git-svn-id:.+)$/) {
666 ($c->{url}, $c->{r}, undef) = extract_metadata($1);
667 } elsif (s/^${_esc_color} //) {
668 push @{$c->{l}}, $_;
669 }
670 }
671 if ($c && defined $c->{r} && $c->{r} != $r_last) {
672 $r_last = $c->{r};
673 process_commit($c, $r_min, $r_max, \@k);
674 }
675 if (@k) {
676 my $swap = $r_max;
677 $r_max = $r_min;
678 $r_min = $swap;
679 process_commit($_, $r_min, $r_max) foreach reverse @k;
680 }
681 out:
682 close $log;
683 print '-' x72,"\n" unless $_incremental || $_oneline;
684 }
686 sub commit_diff_usage {
687 print STDERR "Usage: $0 commit-diff <tree-ish> <tree-ish> [<URL>]\n";
688 exit 1
689 }
691 sub commit_diff {
692 my $ta = shift or commit_diff_usage();
693 my $tb = shift or commit_diff_usage();
694 if (!eval { $SVN_URL = shift || file_to_s("$GIT_SVN_DIR/info/url") }) {
695 print STDERR "Needed URL or usable git-svn id command-line\n";
696 commit_diff_usage();
697 }
698 my $r = shift;
699 unless (defined $r) {
700 if (defined $_revision) {
701 $r = $_revision
702 } else {
703 die "-r|--revision is a required argument\n";
704 }
705 }
706 if (defined $_message && defined $_file) {
707 print STDERR "Both --message/-m and --file/-F specified ",
708 "for the commit message.\n",
709 "I have no idea what you mean\n";
710 exit 1;
711 }
712 if (defined $_file) {
713 $_message = file_to_s($_file);
714 } else {
715 $_message ||= get_commit_message($tb,
716 "$GIT_DIR/.svn-commit.tmp.$$")->{msg};
717 }
718 $SVN ||= Git::SVN::Ra->new($SVN_URL);
719 if ($r eq 'HEAD') {
720 $r = $SVN->get_latest_revnum;
721 } elsif ($r !~ /^\d+$/) {
722 die "revision argument: $r not understood by git-svn\n";
723 }
724 my $rev_committed;
725 my $pool = SVN::Pool->new;
726 my $ed = SVN::Git::Editor->new({ r => $r,
727 ra => $SVN->dup,
728 c => $tb,
729 svn_path => $SVN->{svn_path}
730 },
731 $SVN->get_commit_editor($_message,
732 sub {
733 $rev_committed = $_[0];
734 print "Committed $_[0]\n";
735 },
736 $pool)
737 );
738 eval {
739 my $mods = libsvn_checkout_tree($ta, $tb, $ed);
740 if (@$mods == 0) {
741 print "No changes\n$ta == $tb\n";
742 $ed->abort_edit;
743 } else {
744 $ed->close_edit;
745 }
746 };
747 $pool->clear;
748 fatal "$@\n" if $@;
749 $_message = $_file = undef;
750 return $rev_committed;
751 }
753 ########################### utility functions #########################
755 sub cmt_showable {
756 my ($c) = @_;
757 return 1 if defined $c->{r};
758 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
759 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
760 my @msg = command(qw/cat-file commit/, $c->{c});
761 shift @msg while ($msg[0] ne "\n");
762 shift @msg;
763 @{$c->{l}} = grep !/^git-svn-id: /, @msg;
765 (undef, $c->{r}, undef) = extract_metadata(
766 (grep(/^git-svn-id: /, @msg))[-1]);
767 }
768 return defined $c->{r};
769 }
771 sub log_use_color {
772 return 1 if $_color;
773 my ($dc, $dcvar);
774 $dcvar = 'color.diff';
775 $dc = `git-config --get $dcvar`;
776 if ($dc eq '') {
777 # nothing at all; fallback to "diff.color"
778 $dcvar = 'diff.color';
779 $dc = `git-config --get $dcvar`;
780 }
781 chomp($dc);
782 if ($dc eq 'auto') {
783 my $pc;
784 $pc = `git-config --get color.pager`;
785 if ($pc eq '') {
786 # does not have it -- fallback to pager.color
787 $pc = `git-config --bool --get pager.color`;
788 }
789 else {
790 $pc = `git-config --bool --get color.pager`;
791 if ($?) {
792 $pc = 'false';
793 }
794 }
795 chomp($pc);
796 if (-t *STDOUT || (defined $_pager && $pc eq 'true')) {
797 return ($ENV{TERM} && $ENV{TERM} ne 'dumb');
798 }
799 return 0;
800 }
801 return 0 if $dc eq 'never';
802 return 1 if $dc eq 'always';
803 chomp($dc = `git-config --bool --get $dcvar`);
804 return ($dc eq 'true');
805 }
807 sub git_svn_log_cmd {
808 my ($r_min, $r_max) = @_;
809 my @cmd = (qw/log --abbrev-commit --pretty=raw
810 --default/, "refs/remotes/$GIT_SVN");
811 push @cmd, '-r' unless $_non_recursive;
812 push @cmd, qw/--raw --name-status/ if $_verbose;
813 push @cmd, '--color' if log_use_color();
814 return @cmd unless defined $r_max;
815 if ($r_max == $r_min) {
816 push @cmd, '--max-count=1';
817 if (my $c = revdb_get($REVDB, $r_max)) {
818 push @cmd, $c;
819 }
820 } else {
821 my ($c_min, $c_max);
822 $c_max = revdb_get($REVDB, $r_max);
823 $c_min = revdb_get($REVDB, $r_min);
824 if (defined $c_min && defined $c_max) {
825 if ($r_max > $r_max) {
826 push @cmd, "$c_min..$c_max";
827 } else {
828 push @cmd, "$c_max..$c_min";
829 }
830 } elsif ($r_max > $r_min) {
831 push @cmd, $c_max;
832 } else {
833 push @cmd, $c_min;
834 }
835 }
836 return @cmd;
837 }
839 sub fetch_child_id {
840 my $id = shift;
841 print "Fetching $id\n";
842 my $ref = "$GIT_DIR/refs/remotes/$id";
843 defined(my $pid = open my $fh, '-|') or croak $!;
844 if (!$pid) {
845 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
846 init_vars();
847 fetch(@_);
848 exit 0;
849 }
850 while (<$fh>) {
851 print $_;
852 check_repack() if (/^r\d+ = $sha1/o);
853 }
854 close $fh or croak $?;
855 }
857 sub rec_fetch {
858 my ($pfx, $p, @args) = @_;
859 my @dir;
860 foreach (sort <$p/*>) {
861 if (-r "$_/info/url") {
862 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
863 my $id = $pfx . basename $_;
864 next if $id eq 'trunk';
865 fetch_child_id($id, @args);
866 } elsif (-d $_) {
867 push @dir, $_;
868 }
869 }
870 foreach (@dir) {
871 my $x = $_;
872 $x =~ s!^\Q$GIT_DIR\E/svn/!!;
873 rec_fetch($x, $_);
874 }
875 }
877 sub complete_svn_url {
878 my ($url, $path) = @_;
879 $path =~ s#/+$##;
880 $url =~ s#/+$## if $url;
881 if ($path !~ m#^[a-z\+]+://#) {
882 $path = '/' . $path if ($path !~ m#^/#);
883 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
884 fatal("E: '$path' is not a complete URL ",
885 "and a separate URL is not specified\n");
886 }
887 $path = $url . $path;
888 }
889 return $path;
890 }
892 sub complete_url_ls_init {
893 my ($url, $path, $switch, $pfx) = @_;
894 unless ($path) {
895 print STDERR "W: $switch not specified\n";
896 return;
897 }
898 my $full_url = complete_svn_url($url, $path);
899 my @ls = libsvn_ls_fullurl($full_url);
900 defined(my $pid = fork) or croak $!;
901 if (!$pid) {
902 foreach my $u (map { "$full_url/$_" } (grep m!/$!, @ls)) {
903 $u =~ s#/+$##;
904 if ($u !~ m!\Q$full_url\E/(.+)$!) {
905 print STDERR "W: Unrecognized URL: $u\n";
906 die "This should never happen\n";
907 }
908 # don't try to init already existing refs
909 my $id = $pfx.$1;
910 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
911 init_vars();
912 unless (-d $GIT_SVN_DIR) {
913 print "init $u => $id\n";
914 init($u);
915 }
916 }
917 exit 0;
918 }
919 waitpid $pid, 0;
920 croak $? if $?;
921 my ($n) = ($switch =~ /^--(\w+)/);
922 command_noisy('config', "svn.$n", $full_url);
923 }
925 sub common_prefix {
926 my $paths = shift;
927 my %common;
928 foreach (@$paths) {
929 my @tmp = split m#/#, $_;
930 my $p = '';
931 while (my $x = shift @tmp) {
932 $p .= "/$x";
933 $common{$p} ||= 0;
934 $common{$p}++;
935 }
936 }
937 foreach (sort {length $b <=> length $a} keys %common) {
938 if ($common{$_} == @$paths) {
939 return $_;
940 }
941 }
942 return '';
943 }
945 # grafts set here are 'stronger' in that they're based on actual tree
946 # matches, and won't be deleted from merge-base checking in write_grafts()
947 sub graft_tree_joins {
948 my $grafts = shift;
949 map_tree_joins() if (@_branch_from && !%tree_map);
950 return unless %tree_map;
952 git_svn_each(sub {
953 my $i = shift;
954 my @args = (qw/rev-list --pretty=raw/, "refs/remotes/$i");
955 my ($fh, $ctx) = command_output_pipe(@args);
956 while (<$fh>) {
957 next unless /^commit ($sha1)$/o;
958 my $c = $1;
959 my ($t) = (<$fh> =~ /^tree ($sha1)$/o);
960 next unless $tree_map{$t};
962 my $l;
963 do {
964 $l = readline $fh;
965 } until ($l =~ /^committer (?:.+) (\d+) ([\-\+]?\d+)$/);
967 my ($s, $tz) = ($1, $2);
968 if ($tz =~ s/^\+//) {
969 $s += tz_to_s_offset($tz);
970 } elsif ($tz =~ s/^\-//) {
971 $s -= tz_to_s_offset($tz);
972 }
974 my ($url_a, $r_a, $uuid_a) = cmt_metadata($c);
976 foreach my $p (@{$tree_map{$t}}) {
977 next if $p eq $c;
978 my $mb = eval { command('merge-base', $c, $p) };
979 next unless ($@ || $?);
980 if (defined $r_a) {
981 # see if SVN says it's a relative
982 my ($url_b, $r_b, $uuid_b) =
983 cmt_metadata($p);
984 next if (defined $url_b &&
985 defined $url_a &&
986 ($url_a eq $url_b) &&
987 ($uuid_a eq $uuid_b));
988 if ($uuid_a eq $uuid_b) {
989 if ($r_b < $r_a) {
990 $grafts->{$c}->{$p} = 2;
991 next;
992 } elsif ($r_b > $r_a) {
993 $grafts->{$p}->{$c} = 2;
994 next;
995 }
996 }
997 }
998 my $ct = get_commit_time($p);
999 if ($ct < $s) {
1000 $grafts->{$c}->{$p} = 2;
1001 } elsif ($ct > $s) {
1002 $grafts->{$p}->{$c} = 2;
1003 }
1004 # what should we do when $ct == $s ?
1005 }
1006 }
1007 command_close_pipe($fh, $ctx);
1008 });
1009 }
1011 sub graft_file_copy_lib {
1012 my ($grafts, $l_map, $u) = @_;
1013 my $tree_paths = $l_map->{$u};
1014 my $pfx = common_prefix([keys %$tree_paths]);
1015 my ($repo, $path) = repo_path_split($u.$pfx);
1016 $SVN = Git::SVN::Ra->new($repo);
1018 my ($base, $head) = libsvn_parse_revision();
1019 my $inc = 1000;
1020 my ($min, $max) = ($base, $head < $base+$inc ? $head : $base+$inc);
1021 my $eh = $SVN::Error::handler;
1022 $SVN::Error::handler = \&libsvn_skip_unknown_revs;
1023 while (1) {
1024 $SVN->dup->get_log([$path], $min, $max, 0, 2, 1,
1025 sub {
1026 libsvn_graft_file_copies($grafts, $tree_paths,
1027 $path, @_);
1028 });
1029 last if ($max >= $head);
1030 $min = $max + 1;
1031 $max += $inc;
1032 $max = $head if ($max > $head);
1033 }
1034 $SVN::Error::handler = $eh;
1035 }
1037 sub process_merge_msg_matches {
1038 my ($grafts, $l_map, $u, $p, $c, @matches) = @_;
1039 my (@strong, @weak);
1040 foreach (@matches) {
1041 # merging with ourselves is not interesting
1042 next if $_ eq $p;
1043 if ($l_map->{$u}->{$_}) {
1044 push @strong, $_;
1045 } else {
1046 push @weak, $_;
1047 }
1048 }
1049 foreach my $w (@weak) {
1050 last if @strong;
1051 # no exact match, use branch name as regexp.
1052 my $re = qr/\Q$w\E/i;
1053 foreach (keys %{$l_map->{$u}}) {
1054 if (/$re/) {
1055 push @strong, $l_map->{$u}->{$_};
1056 last;
1057 }
1058 }
1059 last if @strong;
1060 $w = basename($w);
1061 $re = qr/\Q$w\E/i;
1062 foreach (keys %{$l_map->{$u}}) {
1063 if (/$re/) {
1064 push @strong, $l_map->{$u}->{$_};
1065 last;
1066 }
1067 }
1068 }
1069 my ($rev) = ($c->{m} =~ /^git-svn-id:\s(?:\S+?)\@(\d+)
1070 \s(?:[a-f\d\-]+)$/xsm);
1071 unless (defined $rev) {
1072 ($rev) = ($c->{m} =~/^git-svn-id:\s(\d+)
1073 \@(?:[a-f\d\-]+)/xsm);
1074 return unless defined $rev;
1075 }
1076 foreach my $m (@strong) {
1077 my ($r0, $s0) = find_rev_before($rev, $m, 1);
1078 $grafts->{$c->{c}}->{$s0} = 1 if defined $s0;
1079 }
1080 }
1082 sub graft_merge_msg {
1083 my ($grafts, $l_map, $u, $p, @re) = @_;
1085 my $x = $l_map->{$u}->{$p};
1086 my $rl = rev_list_raw("refs/remotes/$x");
1087 while (my $c = next_rev_list_entry($rl)) {
1088 foreach my $re (@re) {
1089 my (@br) = ($c->{m} =~ /$re/g);
1090 next unless @br;
1091 process_merge_msg_matches($grafts,$l_map,$u,$p,$c,@br);
1092 }
1093 }
1094 }
1096 sub verify_ref {
1097 my ($ref) = @_;
1098 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1099 { STDERR => 0 }); };
1100 }
1102 sub repo_path_split {
1103 my $full_url = shift;
1104 $full_url =~ s#/+$##;
1106 foreach (@repo_path_split_cache) {
1107 if ($full_url =~ s#$_##) {
1108 my $u = $1;
1109 $full_url =~ s#^/+##;
1110 return ($u, $full_url);
1111 }
1112 }
1113 my $tmp = Git::SVN::Ra->new($full_url);
1114 return ($tmp->{repos_root}, $tmp->{svn_path});
1115 }
1117 sub setup_git_svn {
1118 defined $SVN_URL or croak "SVN repository location required\n";
1119 unless (-d $GIT_DIR) {
1120 croak "GIT_DIR=$GIT_DIR does not exist!\n";
1121 }
1122 mkpath([$GIT_SVN_DIR]);
1123 mkpath(["$GIT_SVN_DIR/info"]);
1124 open my $fh, '>>',$REVDB or croak $!;
1125 close $fh;
1126 s_to_file($SVN_URL,"$GIT_SVN_DIR/info/url");
1128 }
1130 sub get_tree_from_treeish {
1131 my ($treeish) = @_;
1132 croak "Not a sha1: $treeish\n" unless $treeish =~ /^$sha1$/o;
1133 my $type = command_oneline(qw/cat-file -t/, $treeish);
1134 my $expected;
1135 while ($type eq 'tag') {
1136 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1137 }
1138 if ($type eq 'commit') {
1139 $expected = (grep /^tree /, command(qw/cat-file commit/,
1140 $treeish))[0];
1141 ($expected) = ($expected =~ /^tree ($sha1)$/);
1142 die "Unable to get tree from $treeish\n" unless $expected;
1143 } elsif ($type eq 'tree') {
1144 $expected = $treeish;
1145 } else {
1146 die "$treeish is a $type, expected tree, tag or commit\n";
1147 }
1148 return $expected;
1149 }
1151 sub get_diff {
1152 my ($from, $treeish) = @_;
1153 print "diff-tree $from $treeish\n";
1154 my @diff_tree = qw(diff-tree -z -r);
1155 if ($_cp_similarity) {
1156 push @diff_tree, "-C$_cp_similarity";
1157 } else {
1158 push @diff_tree, '-C';
1159 }
1160 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
1161 push @diff_tree, "-l$_l" if defined $_l;
1162 push @diff_tree, $from, $treeish;
1163 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
1164 local $/ = "\0";
1165 my $state = 'meta';
1166 my @mods;
1167 while (<$diff_fh>) {
1168 chomp $_; # this gets rid of the trailing "\0"
1169 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
1170 $sha1\s($sha1)\s([MTCRAD])\d*$/xo) {
1171 push @mods, { mode_a => $1, mode_b => $2,
1172 sha1_b => $3, chg => $4 };
1173 if ($4 =~ /^(?:C|R)$/) {
1174 $state = 'file_a';
1175 } else {
1176 $state = 'file_b';
1177 }
1178 } elsif ($state eq 'file_a') {
1179 my $x = $mods[$#mods] or croak "Empty array\n";
1180 if ($x->{chg} !~ /^(?:C|R)$/) {
1181 croak "Error parsing $_, $x->{chg}\n";
1182 }
1183 $x->{file_a} = $_;
1184 $state = 'file_b';
1185 } elsif ($state eq 'file_b') {
1186 my $x = $mods[$#mods] or croak "Empty array\n";
1187 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
1188 croak "Error parsing $_, $x->{chg}\n";
1189 }
1190 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
1191 croak "Error parsing $_, $x->{chg}\n";
1192 }
1193 $x->{file_b} = $_;
1194 $state = 'meta';
1195 } else {
1196 croak "Error parsing $_\n";
1197 }
1198 }
1199 command_close_pipe($diff_fh, $ctx);
1200 return \@mods;
1201 }
1203 sub libsvn_checkout_tree {
1204 my ($from, $treeish, $ed) = @_;
1205 my $mods = get_diff($from, $treeish);
1206 return $mods unless (scalar @$mods);
1207 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
1208 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
1209 my $f = $m->{chg};
1210 if (defined $o{$f}) {
1211 $ed->$f($m, $_q);
1212 } else {
1213 croak "Invalid change type: $f\n";
1214 }
1215 }
1216 $ed->rmdirs($_q) if $_rmdir;
1217 return $mods;
1218 }
1220 sub get_commit_message {
1221 my ($commit, $commit_msg) = (@_);
1222 my %log_msg = ( msg => '' );
1223 open my $msg, '>', $commit_msg or croak $!;
1225 my $type = command_oneline(qw/cat-file -t/, $commit);
1226 if ($type eq 'commit' || $type eq 'tag') {
1227 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1228 $type, $commit);
1229 my $in_msg = 0;
1230 while (<$msg_fh>) {
1231 if (!$in_msg) {
1232 $in_msg = 1 if (/^\s*$/);
1233 } elsif (/^git-svn-id: /) {
1234 # skip this, we regenerate the correct one
1235 # on re-fetch anyways
1236 } else {
1237 print $msg $_ or croak $!;
1238 }
1239 }
1240 command_close_pipe($msg_fh, $ctx);
1241 }
1242 close $msg or croak $!;
1244 if ($_edit || ($type eq 'tree')) {
1245 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1246 system($editor, $commit_msg);
1247 }
1249 # file_to_s removes all trailing newlines, so just use chomp() here:
1250 open $msg, '<', $commit_msg or croak $!;
1251 { local $/; chomp($log_msg{msg} = <$msg>); }
1252 close $msg or croak $!;
1254 return \%log_msg;
1255 }
1257 sub set_svn_commit_env {
1258 if (defined $LC_ALL) {
1259 $ENV{LC_ALL} = $LC_ALL;
1260 } else {
1261 delete $ENV{LC_ALL};
1262 }
1263 }
1265 sub rev_list_raw {
1266 my ($fh, $c) = command_output_pipe(qw/rev-list --pretty=raw/, @_);
1267 return { fh => $fh, ctx => $c, t => { } };
1268 }
1270 sub next_rev_list_entry {
1271 my $rl = shift;
1272 my $fh = $rl->{fh};
1273 my $x = $rl->{t};
1274 while (<$fh>) {
1275 if (/^commit ($sha1)$/o) {
1276 if ($x->{c}) {
1277 $rl->{t} = { c => $1 };
1278 return $x;
1279 } else {
1280 $x->{c} = $1;
1281 }
1282 } elsif (/^parent ($sha1)$/o) {
1283 $x->{p}->{$1} = 1;
1284 } elsif (s/^ //) {
1285 $x->{m} ||= '';
1286 $x->{m} .= $_;
1287 }
1288 }
1289 command_close_pipe($fh, $rl->{ctx});
1290 return ($x != $rl->{t}) ? $x : undef;
1291 }
1293 sub s_to_file {
1294 my ($str, $file, $mode) = @_;
1295 open my $fd,'>',$file or croak $!;
1296 print $fd $str,"\n" or croak $!;
1297 close $fd or croak $!;
1298 chmod ($mode &~ umask, $file) if (defined $mode);
1299 }
1301 sub file_to_s {
1302 my $file = shift;
1303 open my $fd,'<',$file or croak "$!: file: $file\n";
1304 local $/;
1305 my $ret = <$fd>;
1306 close $fd or croak $!;
1307 $ret =~ s/\s*$//s;
1308 return $ret;
1309 }
1311 sub assert_revision_unknown {
1312 my $r = shift;
1313 if (my $c = revdb_get($REVDB, $r)) {
1314 croak "$r = $c already exists! Why are we refetching it?";
1315 }
1316 }
1318 sub git_commit {
1319 my ($log_msg, @parents) = @_;
1320 assert_revision_unknown($log_msg->{revision});
1321 map_tree_joins() if (@_branch_from && !%tree_map);
1323 my (@tmp_parents, @exec_parents, %seen_parent);
1324 if (my $lparents = $log_msg->{parents}) {
1325 @tmp_parents = @$lparents
1326 }
1327 # commit parents can be conditionally bound to a particular
1328 # svn revision via: "svn_revno=commit_sha1", filter them out here:
1329 foreach my $p (@parents) {
1330 next unless defined $p;
1331 if ($p =~ /^(\d+)=($sha1_short)$/o) {
1332 if ($1 == $log_msg->{revision}) {
1333 push @tmp_parents, $2;
1334 }
1335 } else {
1336 push @tmp_parents, $p if $p =~ /$sha1_short/o;
1337 }
1338 }
1339 my $tree = $log_msg->{tree};
1340 if (!defined $tree) {
1341 my $index = set_index($GIT_SVN_INDEX);
1342 $tree = command_oneline('write-tree');
1343 croak $? if $?;
1344 restore_index($index);
1345 }
1346 # just in case we clobber the existing ref, we still want that ref
1347 # as our parent:
1348 if (my $cur = verify_ref("refs/remotes/$GIT_SVN^0")) {
1349 chomp $cur;
1350 push @tmp_parents, $cur;
1351 }
1353 if (exists $tree_map{$tree}) {
1354 foreach my $p (@{$tree_map{$tree}}) {
1355 my $skip;
1356 foreach (@tmp_parents) {
1357 # see if a common parent is found
1358 my $mb = eval { command('merge-base', $_, $p) };
1359 next if ($@ || $?);
1360 $skip = 1;
1361 last;
1362 }
1363 next if $skip;
1364 my ($url_p, $r_p, $uuid_p) = cmt_metadata($p);
1365 next if (($SVN->uuid eq $uuid_p) &&
1366 ($log_msg->{revision} > $r_p));
1367 next if (defined $url_p && defined $SVN_URL &&
1368 ($SVN->uuid eq $uuid_p) &&
1369 ($url_p eq $SVN_URL));
1370 push @tmp_parents, $p;
1371 }
1372 }
1373 foreach (@tmp_parents) {
1374 next if $seen_parent{$_};
1375 $seen_parent{$_} = 1;
1376 push @exec_parents, $_;
1377 # MAXPARENT is defined to 16 in commit-tree.c:
1378 last if @exec_parents > 16;
1379 }
1381 set_commit_env($log_msg);
1382 my @exec = ('git-commit-tree', $tree);
1383 push @exec, '-p', $_ foreach @exec_parents;
1384 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1385 or croak $!;
1386 print $msg_fh $log_msg->{msg} or croak $!;
1387 unless ($_no_metadata) {
1388 print $msg_fh "\ngit-svn-id: $SVN_URL\@$log_msg->{revision} ",
1389 $SVN->uuid,"\n" or croak $!;
1390 }
1391 $msg_fh->flush == 0 or croak $!;
1392 close $msg_fh or croak $!;
1393 chomp(my $commit = do { local $/; <$out_fh> });
1394 close $out_fh or croak $!;
1395 waitpid $pid, 0;
1396 croak $? if $?;
1397 if ($commit !~ /^$sha1$/o) {
1398 die "Failed to commit, invalid sha1: $commit\n";
1399 }
1400 command_noisy('update-ref',"refs/remotes/$GIT_SVN",$commit);
1401 revdb_set($REVDB, $log_msg->{revision}, $commit);
1403 # this output is read via pipe, do not change:
1404 print "r$log_msg->{revision} = $commit\n";
1405 return $commit;
1406 }
1408 sub check_repack {
1409 if ($_repack && (--$_repack_nr == 0)) {
1410 $_repack_nr = $_repack;
1411 # repack doesn't use any arguments with spaces in them, does it?
1412 command_noisy('repack', split(/\s+/, $_repack_flags));
1413 }
1414 }
1416 sub set_commit_env {
1417 my ($log_msg) = @_;
1418 my $author = $log_msg->{author};
1419 if (!defined $author || length $author == 0) {
1420 $author = '(no author)';
1421 }
1422 my ($name,$email) = defined $users{$author} ? @{$users{$author}}
1423 : ($author,$author . '@' . $SVN->uuid);
1424 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $name;
1425 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} = $email;
1426 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_msg->{date};
1427 }
1429 sub check_upgrade_needed {
1430 if (!-r $REVDB) {
1431 -d $GIT_SVN_DIR or mkpath([$GIT_SVN_DIR]);
1432 open my $fh, '>>',$REVDB or croak $!;
1433 close $fh;
1434 }
1435 return unless eval {
1436 command([qw/rev-parse --verify/,"$GIT_SVN-HEAD^0"],
1437 {STDERR => 0});
1438 };
1439 my $head = eval { command('rev-parse',"refs/remotes/$GIT_SVN") };
1440 if ($@ || !$head) {
1441 print STDERR "Please run: $0 rebuild --upgrade\n";
1442 exit 1;
1443 }
1444 }
1446 # fills %tree_map with a reverse mapping of trees to commits. Useful
1447 # for finding parents to commit on.
1448 sub map_tree_joins {
1449 my %seen;
1450 foreach my $br (@_branch_from) {
1451 my $pipe = command_output_pipe(qw/rev-list
1452 --topo-order --pretty=raw/, $br);
1453 while (<$pipe>) {
1454 if (/^commit ($sha1)$/o) {
1455 my $commit = $1;
1457 # if we've seen a commit,
1458 # we've seen its parents
1459 last if $seen{$commit};
1460 my ($tree) = (<$pipe> =~ /^tree ($sha1)$/o);
1461 unless (defined $tree) {
1462 die "Failed to parse commit $commit\n";
1463 }
1464 push @{$tree_map{$tree}}, $commit;
1465 $seen{$commit} = 1;
1466 }
1467 }
1468 close $pipe;
1469 }
1470 }
1472 sub load_all_refs {
1473 if (@_branch_from) {
1474 print STDERR '--branch|-b parameters are ignored when ',
1475 "--branch-all-refs|-B is passed\n";
1476 }
1478 # don't worry about rev-list on non-commit objects/tags,
1479 # it shouldn't blow up if a ref is a blob or tree...
1480 @_branch_from = command(qw/rev-parse --symbolic --all/);
1481 }
1483 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1484 sub load_authors {
1485 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1486 while (<$authors>) {
1487 chomp;
1488 next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1489 my ($user, $name, $email) = ($1, $2, $3);
1490 $users{$user} = [$name, $email];
1491 }
1492 close $authors or croak $!;
1493 }
1495 sub rload_authors {
1496 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1497 while (<$authors>) {
1498 chomp;
1499 next unless /^(\S+?)\s*=\s*(.+?)\s*<(.+)>\s*$/;
1500 my ($user, $name, $email) = ($1, $2, $3);
1501 $rusers{"$name <$email>"} = $user;
1502 }
1503 close $authors or croak $!;
1504 }
1506 sub git_svn_each {
1507 my $sub = shift;
1508 foreach (command(qw/rev-parse --symbolic --all/)) {
1509 next unless s#^refs/remotes/##;
1510 chomp $_;
1511 next unless -f "$GIT_DIR/svn/$_/info/url";
1512 &$sub($_);
1513 }
1514 }
1516 sub migrate_revdb {
1517 git_svn_each(sub {
1518 my $id = shift;
1519 defined(my $pid = fork) or croak $!;
1520 if (!$pid) {
1521 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
1522 init_vars();
1523 exit 0 if -r $REVDB;
1524 print "Upgrading svn => git mapping...\n";
1525 -d $GIT_SVN_DIR or mkpath([$GIT_SVN_DIR]);
1526 open my $fh, '>>',$REVDB or croak $!;
1527 close $fh;
1528 rebuild();
1529 print "Done upgrading. You may now delete the ",
1530 "deprecated $GIT_SVN_DIR/revs directory\n";
1531 exit 0;
1532 }
1533 waitpid $pid, 0;
1534 croak $? if $?;
1535 });
1536 }
1538 sub migration_check {
1539 migrate_revdb() unless (-e $REVDB);
1540 return if (-d "$GIT_DIR/svn" || !-d $GIT_DIR);
1541 print "Upgrading repository...\n";
1542 unless (-d "$GIT_DIR/svn") {
1543 mkdir "$GIT_DIR/svn" or croak $!;
1544 }
1545 print "Data from a previous version of git-svn exists, but\n\t",
1546 "$GIT_SVN_DIR\n\t(required for this version ",
1547 "($VERSION) of git-svn) does not.\n";
1549 foreach my $x (command(qw/rev-parse --symbolic --all/)) {
1550 next unless $x =~ s#^refs/remotes/##;
1551 chomp $x;
1552 next unless -f "$GIT_DIR/$x/info/url";
1553 my $u = eval { file_to_s("$GIT_DIR/$x/info/url") };
1554 next unless $u;
1555 my $dn = dirname("$GIT_DIR/svn/$x");
1556 mkpath([$dn]) unless -d $dn;
1557 rename "$GIT_DIR/$x", "$GIT_DIR/svn/$x" or croak "$!: $x";
1558 }
1559 migrate_revdb() if (-d $GIT_SVN_DIR && !-w $REVDB);
1560 print "Done upgrading.\n";
1561 }
1563 sub find_rev_before {
1564 my ($r, $id, $eq_ok) = @_;
1565 my $f = "$GIT_DIR/svn/$id/.rev_db";
1566 return (undef,undef) unless -r $f;
1567 --$r unless $eq_ok;
1568 while ($r > 0) {
1569 if (my $c = revdb_get($f, $r)) {
1570 return ($r, $c);
1571 }
1572 --$r;
1573 }
1574 return (undef, undef);
1575 }
1577 sub init_vars {
1578 $GIT_SVN ||= $ENV{GIT_SVN_ID} || 'git-svn';
1579 $GIT_SVN_DIR = "$GIT_DIR/svn/$GIT_SVN";
1580 $REVDB = "$GIT_SVN_DIR/.rev_db";
1581 $GIT_SVN_INDEX = "$GIT_SVN_DIR/index";
1582 $SVN_URL = undef;
1583 %tree_map = ();
1584 }
1586 # convert GetOpt::Long specs for use by git-config
1587 sub read_repo_config {
1588 return unless -d $GIT_DIR;
1589 my $opts = shift;
1590 foreach my $o (keys %$opts) {
1591 my $v = $opts->{$o};
1592 my ($key) = ($o =~ /^([a-z\-]+)/);
1593 $key =~ s/-//g;
1594 my $arg = 'git-config';
1595 $arg .= ' --int' if ($o =~ /[:=]i$/);
1596 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1597 if (ref $v eq 'ARRAY') {
1598 chomp(my @tmp = `$arg --get-all svn.$key`);
1599 @$v = @tmp if @tmp;
1600 } else {
1601 chomp(my $tmp = `$arg --get svn.$key`);
1602 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1603 $$v = $tmp;
1604 }
1605 }
1606 }
1607 }
1609 sub set_default_vals {
1610 if (defined $_repack) {
1611 $_repack = 1000 if ($_repack <= 0);
1612 $_repack_nr = $_repack;
1613 $_repack_flags ||= '-d';
1614 }
1615 }
1617 sub read_grafts {
1618 my $gr_file = shift;
1619 my ($grafts, $comments) = ({}, {});
1620 if (open my $fh, '<', $gr_file) {
1621 my @tmp;
1622 while (<$fh>) {
1623 if (/^($sha1)\s+/) {
1624 my $c = $1;
1625 if (@tmp) {
1626 @{$comments->{$c}} = @tmp;
1627 @tmp = ();
1628 }
1629 foreach my $p (split /\s+/, $_) {
1630 $grafts->{$c}->{$p} = 1;
1631 }
1632 } else {
1633 push @tmp, $_;
1634 }
1635 }
1636 close $fh or croak $!;
1637 @{$comments->{'END'}} = @tmp if @tmp;
1638 }
1639 return ($grafts, $comments);
1640 }
1642 sub write_grafts {
1643 my ($grafts, $comments, $gr_file) = @_;
1645 open my $fh, '>', $gr_file or croak $!;
1646 foreach my $c (sort keys %$grafts) {
1647 if ($comments->{$c}) {
1648 print $fh $_ foreach @{$comments->{$c}};
1649 }
1650 my $p = $grafts->{$c};
1651 my %x; # real parents
1652 delete $p->{$c}; # commits are not self-reproducing...
1653 my $ch = command_output_pipe(qw/cat-file commit/, $c);
1654 while (<$ch>) {
1655 if (/^parent ($sha1)/) {
1656 $x{$1} = $p->{$1} = 1;
1657 } else {
1658 last unless /^\S/;
1659 }
1660 }
1661 close $ch; # breaking the pipe
1663 # if real parents are the only ones in the grafts, drop it
1664 next if join(' ',sort keys %$p) eq join(' ',sort keys %x);
1666 my (@ip, @jp, $mb);
1667 my %del = %x;
1668 @ip = @jp = keys %$p;
1669 foreach my $i (@ip) {
1670 next if $del{$i} || $p->{$i} == 2;
1671 foreach my $j (@jp) {
1672 next if $i eq $j || $del{$j} || $p->{$j} == 2;
1673 $mb = eval { command('merge-base', $i, $j) };
1674 next unless $mb;
1675 chomp $mb;
1676 next if $x{$mb};
1677 if ($mb eq $j) {
1678 delete $p->{$i};
1679 $del{$i} = 1;
1680 } elsif ($mb eq $i) {
1681 delete $p->{$j};
1682 $del{$j} = 1;
1683 }
1684 }
1685 }
1687 # if real parents are the only ones in the grafts, drop it
1688 next if join(' ',sort keys %$p) eq join(' ',sort keys %x);
1690 print $fh $c, ' ', join(' ', sort keys %$p),"\n";
1691 }
1692 if ($comments->{'END'}) {
1693 print $fh $_ foreach @{$comments->{'END'}};
1694 }
1695 close $fh or croak $!;
1696 }
1698 sub read_url_paths_all {
1699 my ($l_map, $pfx, $p) = @_;
1700 my @dir;
1701 foreach (<$p/*>) {
1702 if (-r "$_/info/url") {
1703 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
1704 my $id = $pfx . basename $_;
1705 my $url = file_to_s("$_/info/url");
1706 my ($u, $p) = repo_path_split($url);
1707 $l_map->{$u}->{$p} = $id;
1708 } elsif (-d $_) {
1709 push @dir, $_;
1710 }
1711 }
1712 foreach (@dir) {
1713 my $x = $_;
1714 $x =~ s!^\Q$GIT_DIR\E/svn/!!o;
1715 read_url_paths_all($l_map, $x, $_);
1716 }
1717 }
1719 # this one only gets ids that have been imported, not new ones
1720 sub read_url_paths {
1721 my $l_map = {};
1722 git_svn_each(sub { my $x = shift;
1723 my $url = file_to_s("$GIT_DIR/svn/$x/info/url");
1724 my ($u, $p) = repo_path_split($url);
1725 $l_map->{$u}->{$p} = $x;
1726 });
1727 return $l_map;
1728 }
1730 sub extract_metadata {
1731 my $id = shift or return (undef, undef, undef);
1732 my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
1733 \s([a-f\d\-]+)$/x);
1734 if (!defined $rev || !$uuid || !$url) {
1735 # some of the original repositories I made had
1736 # identifiers like this:
1737 ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1738 }
1739 return ($url, $rev, $uuid);
1740 }
1742 sub cmt_metadata {
1743 return extract_metadata((grep(/^git-svn-id: /,
1744 command(qw/cat-file commit/, shift)))[-1]);
1745 }
1747 sub get_commit_time {
1748 my $cmt = shift;
1749 my $fh = command_output_pipe(qw/rev-list --pretty=raw -n1/, $cmt);
1750 while (<$fh>) {
1751 /^committer\s(?:.+) (\d+) ([\-\+]?\d+)$/ or next;
1752 my ($s, $tz) = ($1, $2);
1753 if ($tz =~ s/^\+//) {
1754 $s += tz_to_s_offset($tz);
1755 } elsif ($tz =~ s/^\-//) {
1756 $s -= tz_to_s_offset($tz);
1757 }
1758 close $fh;
1759 return $s;
1760 }
1761 die "Can't get commit time for commit: $cmt\n";
1762 }
1764 sub tz_to_s_offset {
1765 my ($tz) = @_;
1766 $tz =~ s/(\d\d)$//;
1767 return ($1 * 60) + ($tz * 3600);
1768 }
1770 # adapted from pager.c
1771 sub config_pager {
1772 $_pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
1773 if (!defined $_pager) {
1774 $_pager = 'less';
1775 } elsif (length $_pager == 0 || $_pager eq 'cat') {
1776 $_pager = undef;
1777 }
1778 }
1780 sub run_pager {
1781 return unless -t *STDOUT;
1782 pipe my $rfd, my $wfd or return;
1783 defined(my $pid = fork) or croak $!;
1784 if (!$pid) {
1785 open STDOUT, '>&', $wfd or croak $!;
1786 return;
1787 }
1788 open STDIN, '<&', $rfd or croak $!;
1789 $ENV{LESS} ||= 'FRSX';
1790 exec $_pager or croak "Can't run pager: $! ($_pager)\n";
1791 }
1793 sub get_author_info {
1794 my ($dest, $author, $t, $tz) = @_;
1795 $author =~ s/(?:^\s*|\s*$)//g;
1796 $dest->{a_raw} = $author;
1797 my $_a;
1798 if ($_authors) {
1799 $_a = $rusers{$author} || undef;
1800 }
1801 if (!$_a) {
1802 ($_a) = ($author =~ /<([^>]+)\@[^>]+>$/);
1803 }
1804 $dest->{t} = $t;
1805 $dest->{tz} = $tz;
1806 $dest->{a} = $_a;
1807 # Date::Parse isn't in the standard Perl distro :(
1808 if ($tz =~ s/^\+//) {
1809 $t += tz_to_s_offset($tz);
1810 } elsif ($tz =~ s/^\-//) {
1811 $t -= tz_to_s_offset($tz);
1812 }
1813 $dest->{t_utc} = $t;
1814 }
1816 sub process_commit {
1817 my ($c, $r_min, $r_max, $defer) = @_;
1818 if (defined $r_min && defined $r_max) {
1819 if ($r_min == $c->{r} && $r_min == $r_max) {
1820 show_commit($c);
1821 return 0;
1822 }
1823 return 1 if $r_min == $r_max;
1824 if ($r_min < $r_max) {
1825 # we need to reverse the print order
1826 return 0 if (defined $_limit && --$_limit < 0);
1827 push @$defer, $c;
1828 return 1;
1829 }
1830 if ($r_min != $r_max) {
1831 return 1 if ($r_min < $c->{r});
1832 return 1 if ($r_max > $c->{r});
1833 }
1834 }
1835 return 0 if (defined $_limit && --$_limit < 0);
1836 show_commit($c);
1837 return 1;
1838 }
1840 sub show_commit {
1841 my $c = shift;
1842 if ($_oneline) {
1843 my $x = "\n";
1844 if (my $l = $c->{l}) {
1845 while ($l->[0] =~ /^\s*$/) { shift @$l }
1846 $x = $l->[0];
1847 }
1848 $_l_fmt ||= 'A' . length($c->{r});
1849 print 'r',pack($_l_fmt, $c->{r}),' | ';
1850 print "$c->{c} | " if $_show_commit;
1851 print $x;
1852 } else {
1853 show_commit_normal($c);
1854 }
1855 }
1857 sub show_commit_changed_paths {
1858 my ($c) = @_;
1859 return unless $c->{changed};
1860 print "Changed paths:\n", @{$c->{changed}};
1861 }
1863 sub show_commit_normal {
1864 my ($c) = @_;
1865 print '-' x72, "\nr$c->{r} | ";
1866 print "$c->{c} | " if $_show_commit;
1867 print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
1868 localtime($c->{t_utc})), ' | ';
1869 my $nr_line = 0;
1871 if (my $l = $c->{l}) {
1872 while ($l->[$#$l] eq "\n" && $#$l > 0
1873 && $l->[($#$l - 1)] eq "\n") {
1874 pop @$l;
1875 }
1876 $nr_line = scalar @$l;
1877 if (!$nr_line) {
1878 print "1 line\n\n\n";
1879 } else {
1880 if ($nr_line == 1) {
1881 $nr_line = '1 line';
1882 } else {
1883 $nr_line .= ' lines';
1884 }
1885 print $nr_line, "\n";
1886 show_commit_changed_paths($c);
1887 print "\n";
1888 print $_ foreach @$l;
1889 }
1890 } else {
1891 print "1 line\n";
1892 show_commit_changed_paths($c);
1893 print "\n";
1895 }
1896 foreach my $x (qw/raw diff/) {
1897 if ($c->{$x}) {
1898 print "\n";
1899 print $_ foreach @{$c->{$x}}
1900 }
1901 }
1902 }
1904 package Git::SVN::Prompt;
1905 use strict;
1906 use warnings;
1907 require SVN::Core;
1908 use vars qw/$_no_auth_cache $_username/;
1910 sub simple {
1911 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
1912 $may_save = undef if $_no_auth_cache;
1913 $default_username = $_username if defined $_username;
1914 if (defined $default_username && length $default_username) {
1915 if (defined $realm && length $realm) {
1916 print STDERR "Authentication realm: $realm\n";
1917 STDERR->flush;
1918 }
1919 $cred->username($default_username);
1920 } else {
1921 username($cred, $realm, $may_save, $pool);
1922 }
1923 $cred->password(_read_password("Password for '" .
1924 $cred->username . "': ", $realm));
1925 $cred->may_save($may_save);
1926 $SVN::_Core::SVN_NO_ERROR;
1927 }
1929 sub ssl_server_trust {
1930 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
1931 $may_save = undef if $_no_auth_cache;
1932 print STDERR "Error validating server certificate for '$realm':\n";
1933 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
1934 print STDERR " - The certificate is not issued by a trusted ",
1935 "authority. Use the\n",
1936 " fingerprint to validate the certificate manually!\n";
1937 }
1938 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
1939 print STDERR " - The certificate hostname does not match.\n";
1940 }
1941 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
1942 print STDERR " - The certificate is not yet valid.\n";
1943 }
1944 if ($failures & $SVN::Auth::SSL::EXPIRED) {
1945 print STDERR " - The certificate has expired.\n";
1946 }
1947 if ($failures & $SVN::Auth::SSL::OTHER) {
1948 print STDERR " - The certificate has an unknown error.\n";
1949 }
1950 printf STDERR
1951 "Certificate information:\n".
1952 " - Hostname: %s\n".
1953 " - Valid: from %s until %s\n".
1954 " - Issuer: %s\n".
1955 " - Fingerprint: %s\n",
1956 map $cert_info->$_, qw(hostname valid_from valid_until
1957 issuer_dname fingerprint);
1958 my $choice;
1959 prompt:
1960 print STDERR $may_save ?
1961 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
1962 "(R)eject or accept (t)emporarily? ";
1963 STDERR->flush;
1964 $choice = lc(substr(<STDIN> || 'R', 0, 1));
1965 if ($choice =~ /^t$/i) {
1966 $cred->may_save(undef);
1967 } elsif ($choice =~ /^r$/i) {
1968 return -1;
1969 } elsif ($may_save && $choice =~ /^p$/i) {
1970 $cred->may_save($may_save);
1971 } else {
1972 goto prompt;
1973 }
1974 $cred->accepted_failures($failures);
1975 $SVN::_Core::SVN_NO_ERROR;
1976 }
1978 sub ssl_client_cert {
1979 my ($cred, $realm, $may_save, $pool) = @_;
1980 $may_save = undef if $_no_auth_cache;
1981 print STDERR "Client certificate filename: ";
1982 STDERR->flush;
1983 chomp(my $filename = <STDIN>);
1984 $cred->cert_file($filename);
1985 $cred->may_save($may_save);
1986 $SVN::_Core::SVN_NO_ERROR;
1987 }
1989 sub ssl_client_cert_pw {
1990 my ($cred, $realm, $may_save, $pool) = @_;
1991 $may_save = undef if $_no_auth_cache;
1992 $cred->password(_read_password("Password: ", $realm));
1993 $cred->may_save($may_save);
1994 $SVN::_Core::SVN_NO_ERROR;
1995 }
1997 sub username {
1998 my ($cred, $realm, $may_save, $pool) = @_;
1999 $may_save = undef if $_no_auth_cache;
2000 if (defined $realm && length $realm) {
2001 print STDERR "Authentication realm: $realm\n";
2002 }
2003 my $username;
2004 if (defined $_username) {
2005 $username = $_username;
2006 } else {
2007 print STDERR "Username: ";
2008 STDERR->flush;
2009 chomp($username = <STDIN>);
2010 }
2011 $cred->username($username);
2012 $cred->may_save($may_save);
2013 $SVN::_Core::SVN_NO_ERROR;
2014 }
2016 sub _read_password {
2017 my ($prompt, $realm) = @_;
2018 print STDERR $prompt;
2019 STDERR->flush;
2020 require Term::ReadKey;
2021 Term::ReadKey::ReadMode('noecho');
2022 my $password = '';
2023 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
2024 last if $key =~ /[\012\015]/; # \n\r
2025 $password .= $key;
2026 }
2027 Term::ReadKey::ReadMode('restore');
2028 print STDERR "\n";
2029 STDERR->flush;
2030 $password;
2031 }
2033 package main;
2035 sub uri_encode {
2036 my ($f) = @_;
2037 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2038 $f
2039 }
2041 sub uri_decode {
2042 my ($f) = @_;
2043 $f =~ tr/+/ /;
2044 $f =~ s/%([A-F0-9]{2})/chr hex($1)/ge;
2045 $f
2046 }
2048 sub libsvn_log_entry {
2049 my ($rev, $author, $date, $msg, $parents, $untracked) = @_;
2050 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2051 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x)
2052 or die "Unable to parse date: $date\n";
2053 if (defined $author && length $author > 0 &&
2054 defined $_authors && ! defined $users{$author}) {
2055 die "Author: $author not defined in $_authors file\n";
2056 }
2057 $msg = '' if ($rev == 0 && !defined $msg);
2059 open my $un, '>>', "$GIT_SVN_DIR/unhandled.log" or croak $!;
2060 my $h;
2061 print $un "r$rev\n" or croak $!;
2062 $h = $untracked->{empty};
2063 foreach (sort keys %$h) {
2064 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2065 print $un " $act: ", uri_encode($_), "\n" or croak $!;
2066 warn "W: $act: $_\n";
2067 }
2068 foreach my $t (qw/dir_prop file_prop/) {
2069 $h = $untracked->{$t} or next;
2070 foreach my $path (sort keys %$h) {
2071 my $ppath = $path eq '' ? '.' : $path;
2072 foreach my $prop (sort keys %{$h->{$path}}) {
2073 next if $SKIP{$prop};
2074 my $v = $h->{$path}->{$prop};
2075 if (defined $v) {
2076 print $un " +$t: ",
2077 uri_encode($ppath), ' ',
2078 uri_encode($prop), ' ',
2079 uri_encode($v), "\n"
2080 or croak $!;
2081 } else {
2082 print $un " -$t: ",
2083 uri_encode($ppath), ' ',
2084 uri_encode($prop), "\n"
2085 or croak $!;
2086 }
2087 }
2088 }
2089 }
2090 foreach my $t (qw/absent_file absent_directory/) {
2091 $h = $untracked->{$t} or next;
2092 foreach my $parent (sort keys %$h) {
2093 foreach my $path (sort @{$h->{$parent}}) {
2094 print $un " $t: ",
2095 uri_encode("$parent/$path"), "\n"
2096 or croak $!;
2097 warn "W: $t: $parent/$path ",
2098 "Insufficient permissions?\n";
2099 }
2100 }
2101 }
2103 # revprops (make this optional? it's an extra network trip...)
2104 my $rp = $SVN->rev_proplist($rev);
2105 foreach (sort keys %$rp) {
2106 next if /^svn:(?:author|date|log)$/;
2107 print $un " rev_prop: ", uri_encode($_), ' ',
2108 uri_encode($rp->{$_}), "\n";
2109 }
2110 close $un or croak $!;
2112 { revision => $rev, date => "+0000 $Y-$m-$d $H:$M:$S",
2113 author => $author, msg => $msg."\n", parents => $parents || [],
2114 revprops => $rp }
2115 }
2117 sub libsvn_fetch {
2118 my ($last_commit, $paths, $rev, $author, $date, $msg) = @_;
2119 my $ed = SVN::Git::Fetcher->new({ c => $last_commit, q => $_q });
2120 my (undef, $last_rev, undef) = cmt_metadata($last_commit);
2121 unless ($SVN->gs_do_update($last_rev, $rev, '', 1, $ed)) {
2122 die "SVN connection failed somewhere...\n";
2123 }
2124 libsvn_log_entry($rev, $author, $date, $msg, [$last_commit], $ed);
2125 }
2127 sub svn_grab_base_rev {
2128 my $c = eval { command_oneline([qw/rev-parse --verify/,
2129 "refs/remotes/$GIT_SVN^0"],
2130 { STDERR => 0 }) };
2131 if (defined $c && length $c) {
2132 my ($url, $rev, $uuid) = cmt_metadata($c);
2133 return ($rev, $c) if defined $rev;
2134 }
2135 if ($_no_metadata) {
2136 my $offset = -41; # from tail
2137 my $rl;
2138 open my $fh, '<', $REVDB or
2139 die "--no-metadata specified and $REVDB not readable\n";
2140 seek $fh, $offset, 2;
2141 $rl = readline $fh;
2142 defined $rl or return (undef, undef);
2143 chomp $rl;
2144 while ($c ne $rl && tell $fh != 0) {
2145 $offset -= 41;
2146 seek $fh, $offset, 2;
2147 $rl = readline $fh;
2148 defined $rl or return (undef, undef);
2149 chomp $rl;
2150 }
2151 my $rev = tell $fh;
2152 croak $! if ($rev < -1);
2153 $rev = ($rev - 41) / 41;
2154 close $fh or croak $!;
2155 return ($rev, $c);
2156 }
2157 return (undef, undef);
2158 }
2160 sub libsvn_parse_revision {
2161 my $base = shift;
2162 my $head = $SVN->get_latest_revnum();
2163 if (!defined $_revision || $_revision eq 'BASE:HEAD') {
2164 return ($base + 1, $head) if (defined $base);
2165 return (0, $head);
2166 }
2167 return ($1, $2) if ($_revision =~ /^(\d+):(\d+)$/);
2168 return ($_revision, $_revision) if ($_revision =~ /^\d+$/);
2169 if ($_revision =~ /^BASE:(\d+)$/) {
2170 return ($base + 1, $1) if (defined $base);
2171 return (0, $head);
2172 }
2173 return ($1, $head) if ($_revision =~ /^(\d+):HEAD$/);
2174 die "revision argument: $_revision not understood by git-svn\n",
2175 "Try using the command-line svn client instead\n";
2176 }
2178 sub libsvn_traverse_ignore {
2179 my ($fh, $path, $r) = @_;
2180 $path =~ s#^/+##g;
2181 my ($dirent, undef, $props) = $SVN->get_dir($path, $r);
2182 my $p = $path;
2183 $p =~ s#^\Q$SVN->{svn_path}\E/##;
2184 print $fh length $p ? "\n# $p\n" : "\n# /\n";
2185 if (my $s = $props->{'svn:ignore'}) {
2186 $s =~ s/[\r\n]+/\n/g;
2187 chomp $s;
2188 if (length $p == 0) {
2189 $s =~ s#\n#\n/$p#g;
2190 print $fh "/$s\n";
2191 } else {
2192 $s =~ s#\n#\n/$p/#g;
2193 print $fh "/$p/$s\n";
2194 }
2195 }
2196 foreach (sort keys %$dirent) {
2197 next if $dirent->{$_}->kind != $SVN::Node::dir;
2198 libsvn_traverse_ignore($fh, "$path/$_", $r);
2199 }
2200 }
2202 sub revisions_eq {
2203 my ($path, $r0, $r1) = @_;
2204 return 1 if $r0 == $r1;
2205 my $nr = 0;
2206 # should be OK to use Pool here (r1 - r0) should be small
2207 $SVN->get_log([$path], $r0, $r1, 0, 0, 1, sub {$nr++});
2208 return 0 if ($nr > 1);
2209 return 1;
2210 }
2212 sub libsvn_find_parent_branch {
2213 my ($paths, $rev, $author, $date, $msg) = @_;
2214 my $svn_path = '/'.$SVN->{svn_path};
2216 # look for a parent from another branch:
2217 my $i = $paths->{$svn_path} or return;
2218 my $branch_from = $i->copyfrom_path or return;
2219 my $r = $i->copyfrom_rev;
2220 print STDERR "Found possible branch point: ",
2221 "$branch_from => $svn_path, $r\n";
2222 $branch_from =~ s#^/##;
2223 my $l_map = {};
2224 read_url_paths_all($l_map, '', "$GIT_DIR/svn");
2225 my $url = $SVN->{repos_root};
2226 defined $l_map->{$url} or return;
2227 my $id = $l_map->{$url}->{$branch_from};
2228 if (!defined $id && $_follow_parent) {
2229 print STDERR "Following parent: $branch_from\@$r\n";
2230 # auto create a new branch and follow it
2231 $id = basename($branch_from);
2232 $id .= '@'.$r if -r "$GIT_DIR/svn/$id";
2233 while (-r "$GIT_DIR/svn/$id") {
2234 # just grow a tail if we're not unique enough :x
2235 $id .= '-';
2236 }
2237 }
2238 return unless defined $id;
2240 my ($r0, $parent) = find_rev_before($r,$id,1);
2241 if ($_follow_parent && (!defined $r0 || !defined $parent)) {
2242 defined(my $pid = fork) or croak $!;
2243 if (!$pid) {
2244 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
2245 init_vars();
2246 $SVN_URL = "$url/$branch_from";
2247 $SVN = undef;
2248 setup_git_svn();
2249 # we can't assume SVN_URL exists at r+1:
2250 $_revision = "0:$r";
2251 fetch_lib();
2252 exit 0;
2253 }
2254 waitpid $pid, 0;
2255 croak $? if $?;
2256 ($r0, $parent) = find_rev_before($r,$id,1);
2257 }
2258 return unless (defined $r0 && defined $parent);
2259 if (revisions_eq($branch_from, $r0, $r)) {
2260 unlink $GIT_SVN_INDEX;
2261 print STDERR "Found branch parent: ($GIT_SVN) $parent\n";
2262 command_noisy('read-tree', $parent);
2263 unless ($SVN->can_do_switch) {
2264 return _libsvn_new_tree($paths, $rev, $author, $date,
2265 $msg, [$parent]);
2266 }
2267 # do_switch works with svn/trunk >= r22312, but that is not
2268 # included with SVN 1.4.2 (the latest version at the moment),
2269 # so we can't rely on it.
2270 my $ra = Git::SVN::Ra->new("$url/$branch_from");
2271 my $ed = SVN::Git::Fetcher->new({c => $parent, q => $_q });
2272 $ra->gs_do_switch($r0, $rev, '', 1, $SVN->{url}, $ed) or
2273 die "SVN connection failed somewhere...\n";
2274 return libsvn_log_entry($rev, $author, $date, $msg, [$parent]);
2275 }
2276 print STDERR "Nope, branch point not imported or unknown\n";
2277 return undef;
2278 }
2280 sub libsvn_new_tree {
2281 if (my $log_entry = libsvn_find_parent_branch(@_)) {
2282 return $log_entry;
2283 }
2284 my ($paths, $rev, $author, $date, $msg) = @_; # $pool is last
2285 _libsvn_new_tree($paths, $rev, $author, $date, $msg, []);
2286 }
2288 sub _libsvn_new_tree {
2289 my ($paths, $rev, $author, $date, $msg, $parents) = @_;
2290 my $ed = SVN::Git::Fetcher->new({q => $_q});
2291 unless ($SVN->gs_do_update($rev, $rev, '', 1, $ed)) {
2292 die "SVN connection failed somewhere...\n";
2293 }
2294 libsvn_log_entry($rev, $author, $date, $msg, $parents, $ed);
2295 }
2297 sub find_graft_path_commit {
2298 my ($tree_paths, $p1, $r1) = @_;
2299 foreach my $x (keys %$tree_paths) {
2300 next unless ($p1 =~ /^\Q$x\E/);
2301 my $i = $tree_paths->{$x};
2302 my ($r0, $parent) = find_rev_before($r1,$i,1);
2303 return $parent if (defined $r0 && $r0 == $r1);
2304 print STDERR "r$r1 of $i not imported\n";
2305 next;
2306 }
2307 return undef;
2308 }
2310 sub find_graft_path_parents {
2311 my ($grafts, $tree_paths, $c, $p0, $r0) = @_;
2312 foreach my $x (keys %$tree_paths) {
2313 next unless ($p0 =~ /^\Q$x\E/);
2314 my $i = $tree_paths->{$x};
2315 my ($r, $parent) = find_rev_before($r0, $i, 1);
2316 if (defined $r && defined $parent && revisions_eq($x,$r,$r0)) {
2317 my ($url_b, undef, $uuid_b) = cmt_metadata($c);
2318 my ($url_a, undef, $uuid_a) = cmt_metadata($parent);
2319 next if ($url_a && $url_b && $url_a eq $url_b &&
2320 $uuid_b eq $uuid_a);
2321 $grafts->{$c}->{$parent} = 1;
2322 }
2323 }
2324 }
2326 sub libsvn_graft_file_copies {
2327 my ($grafts, $tree_paths, $path, $paths, $rev) = @_;
2328 foreach (keys %$paths) {
2329 my $i = $paths->{$_};
2330 my ($m, $p0, $r0) = ($i->action, $i->copyfrom_path,
2331 $i->copyfrom_rev);
2332 next unless (defined $p0 && defined $r0);
2334 my $p1 = $_;
2335 $p1 =~ s#^/##;
2336 $p0 =~ s#^/##;
2337 my $c = find_graft_path_commit($tree_paths, $p1, $rev);
2338 next unless $c;
2339 find_graft_path_parents($grafts, $tree_paths, $c, $p0, $r0);
2340 }
2341 }
2343 sub set_index {
2344 my $old = $ENV{GIT_INDEX_FILE};
2345 $ENV{GIT_INDEX_FILE} = shift;
2346 return $old;
2347 }
2349 sub restore_index {
2350 my ($old) = @_;
2351 if (defined $old) {
2352 $ENV{GIT_INDEX_FILE} = $old;
2353 } else {
2354 delete $ENV{GIT_INDEX_FILE};
2355 }
2356 }
2358 sub libsvn_commit_cb {
2359 my ($rev, $date, $committer, $c, $msg, $r_last, $cmt_last) = @_;
2360 if ($_optimize_commits && $rev == ($r_last + 1)) {
2361 my $log = libsvn_log_entry($rev,$committer,$date,$msg);
2362 $log->{tree} = get_tree_from_treeish($c);
2363 my $cmt = git_commit($log, $cmt_last, $c);
2364 my @diff = command('diff-tree', $cmt, $c);
2365 if (@diff) {
2366 print STDERR "Trees differ: $cmt $c\n",
2367 join('',@diff),"\n";
2368 exit 1;
2369 }
2370 } else {
2371 fetch("$rev=$c");
2372 }
2373 }
2375 sub libsvn_ls_fullurl {
2376 my $fullurl = shift;
2377 my $ra = Git::SVN::Ra->new($fullurl);
2378 my @ret;
2379 my $r = defined $_revision ? $_revision : $ra->get_latest_revnum;
2380 my ($dirent, undef, undef) = $ra->get_dir('', $r);
2381 foreach my $d (sort keys %$dirent) {
2382 if ($dirent->{$d}->kind == $SVN::Node::dir) {
2383 push @ret, "$d/"; # add '/' for compat with cli svn
2384 }
2385 }
2386 return @ret;
2387 }
2389 sub libsvn_skip_unknown_revs {
2390 my $err = shift;
2391 my $errno = $err->apr_err();
2392 # Maybe the branch we're tracking didn't
2393 # exist when the repo started, so it's
2394 # not an error if it doesn't, just continue
2395 #
2396 # Wonderfully consistent library, eh?
2397 # 160013 - svn:// and file://
2398 # 175002 - http(s)://
2399 # 175007 - http(s):// (this repo required authorization, too...)
2400 # More codes may be discovered later...
2401 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
2402 return;
2403 }
2404 croak "Error from SVN, ($errno): ", $err->expanded_message,"\n";
2405 };
2407 # Tie::File seems to be prone to offset errors if revisions get sparse,
2408 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
2409 # one of my favorite modules is out :< Next up would be one of the DBM
2410 # modules, but I'm not sure which is most portable... So I'll just
2411 # go with something that's plain-text, but still capable of
2412 # being randomly accessed. So here's my ultra-simple fixed-width
2413 # database. All records are 40 characters + "\n", so it's easy to seek
2414 # to a revision: (41 * rev) is the byte offset.
2415 # A record of 40 0s denotes an empty revision.
2416 # And yes, it's still pretty fast (faster than Tie::File).
2417 sub revdb_set {
2418 my ($file, $rev, $commit) = @_;
2419 length $commit == 40 or croak "arg3 must be a full SHA1 hexsum\n";
2420 open my $fh, '+<', $file or croak $!;
2421 my $offset = $rev * 41;
2422 # assume that append is the common case:
2423 seek $fh, 0, 2 or croak $!;
2424 my $pos = tell $fh;
2425 if ($pos < $offset) {
2426 print $fh (('0' x 40),"\n") x (($offset - $pos) / 41);
2427 }
2428 seek $fh, $offset, 0 or croak $!;
2429 print $fh $commit,"\n";
2430 close $fh or croak $!;
2431 }
2433 sub revdb_get {
2434 my ($file, $rev) = @_;
2435 my $ret;
2436 my $offset = $rev * 41;
2437 open my $fh, '<', $file or croak $!;
2438 seek $fh, $offset, 0;
2439 if (tell $fh == $offset) {
2440 $ret = readline $fh;
2441 if (defined $ret) {
2442 chomp $ret;
2443 $ret = undef if ($ret =~ /^0{40}$/);
2444 }
2445 }
2446 close $fh or croak $!;
2447 return $ret;
2448 }
2450 sub copy_remote_ref {
2451 my $origin = $_cp_remote ? $_cp_remote : 'origin';
2452 my $ref = "refs/remotes/$GIT_SVN";
2453 if (command('ls-remote', $origin, $ref)) {
2454 command_noisy('fetch', $origin, "$ref:$ref");
2455 } elsif ($_cp_remote && !$_upgrade) {
2456 die "Unable to find remote reference: ",
2457 "refs/remotes/$GIT_SVN on $origin\n";
2458 }
2459 }
2461 {
2462 my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
2463 $SVN::Node::dir.$SVN::Node::unknown.
2464 $SVN::Node::none.$SVN::Node::file.
2465 $SVN::Node::dir.$SVN::Node::unknown.
2466 $SVN::Auth::SSL::CNMISMATCH.
2467 $SVN::Auth::SSL::NOTYETVALID.
2468 $SVN::Auth::SSL::EXPIRED.
2469 $SVN::Auth::SSL::UNKNOWNCA.
2470 $SVN::Auth::SSL::OTHER;
2471 }
2473 package SVN::Git::Fetcher;
2474 use vars qw/@ISA/;
2475 use strict;
2476 use warnings;
2477 use Carp qw/croak/;
2478 use IO::File qw//;
2479 use Git qw/command command_oneline command_noisy
2480 command_output_pipe command_input_pipe command_close_pipe/;
2482 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
2483 sub new {
2484 my ($class, $git_svn) = @_;
2485 my $self = SVN::Delta::Editor->new;
2486 bless $self, $class;
2487 $self->{c} = $git_svn->{c} if exists $git_svn->{c};
2488 $self->{q} = $git_svn->{q};
2489 $self->{empty} = {};
2490 $self->{dir_prop} = {};
2491 $self->{file_prop} = {};
2492 $self->{absent_dir} = {};
2493 $self->{absent_file} = {};
2494 ($self->{gui}, $self->{ctx}) = command_input_pipe(
2495 qw/update-index -z --index-info/);
2496 require Digest::MD5;
2497 $self;
2498 }
2500 sub open_root {
2501 { path => '' };
2502 }
2504 sub open_directory {
2505 my ($self, $path, $pb, $rev) = @_;
2506 { path => $path };
2507 }
2509 sub delete_entry {
2510 my ($self, $path, $rev, $pb) = @_;
2511 my $gui = $self->{gui};
2513 # remove entire directories.
2514 if (command('ls-tree', $self->{c}, '--', $path) =~ /^040000 tree/) {
2515 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
2516 -r --name-only -z/,
2517 $self->{c}, '--', $path);
2518 local $/ = "\0";
2519 while (<$ls>) {
2520 print $gui '0 ',0 x 40,"\t",$_ or croak $!;
2521 print "\tD\t$_\n" unless $self->{q};
2522 }
2523 print "\tD\t$path/\n" unless $self->{q};
2524 command_close_pipe($ls, $ctx);
2525 $self->{empty}->{$path} = 0
2526 } else {
2527 print $gui '0 ',0 x 40,"\t",$path,"\0" or croak $!;
2528 print "\tD\t$path\n" unless $self->{q};
2529 }
2530 undef;
2531 }
2533 sub open_file {
2534 my ($self, $path, $pb, $rev) = @_;
2535 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--',$path)
2536 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
2537 unless (defined $mode && defined $blob) {
2538 die "$path was not found in commit $self->{c} (r$rev)\n";
2539 }
2540 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
2541 pool => SVN::Pool->new, action => 'M' };
2542 }
2544 sub add_file {
2545 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
2546 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2547 delete $self->{empty}->{$dir};
2548 { path => $path, mode_a => 100644, mode_b => 100644,
2549 pool => SVN::Pool->new, action => 'A' };
2550 }
2552 sub add_directory {
2553 my ($self, $path, $cp_path, $cp_rev) = @_;
2554 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2555 delete $self->{empty}->{$dir};
2556 $self->{empty}->{$path} = 1;
2557 { path => $path };
2558 }
2560 sub change_dir_prop {
2561 my ($self, $db, $prop, $value) = @_;
2562 $self->{dir_prop}->{$db->{path}} ||= {};
2563 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
2564 undef;
2565 }
2567 sub absent_directory {
2568 my ($self, $path, $pb) = @_;
2569 $self->{absent_dir}->{$pb->{path}} ||= [];
2570 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
2571 undef;
2572 }
2574 sub absent_file {
2575 my ($self, $path, $pb) = @_;
2576 $self->{absent_file}->{$pb->{path}} ||= [];
2577 push @{$self->{absent_file}->{$pb->{path}}}, $path;
2578 undef;
2579 }
2581 sub change_file_prop {
2582 my ($self, $fb, $prop, $value) = @_;
2583 if ($prop eq 'svn:executable') {
2584 if ($fb->{mode_b} != 120000) {
2585 $fb->{mode_b} = defined $value ? 100755 : 100644;
2586 }
2587 } elsif ($prop eq 'svn:special') {
2588 $fb->{mode_b} = defined $value ? 120000 : 100644;
2589 } else {
2590 $self->{file_prop}->{$fb->{path}} ||= {};
2591 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
2592 }
2593 undef;
2594 }
2596 sub apply_textdelta {
2597 my ($self, $fb, $exp) = @_;
2598 my $fh = IO::File->new_tmpfile;
2599 $fh->autoflush(1);
2600 # $fh gets auto-closed() by SVN::TxDelta::apply(),
2601 # (but $base does not,) so dup() it for reading in close_file
2602 open my $dup, '<&', $fh or croak $!;
2603 my $base = IO::File->new_tmpfile;
2604 $base->autoflush(1);
2605 if ($fb->{blob}) {
2606 defined (my $pid = fork) or croak $!;
2607 if (!$pid) {
2608 open STDOUT, '>&', $base or croak $!;
2609 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
2610 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
2611 }
2612 waitpid $pid, 0;
2613 croak $? if $?;
2615 if (defined $exp) {
2616 seek $base, 0, 0 or croak $!;
2617 my $md5 = Digest::MD5->new;
2618 $md5->addfile($base);
2619 my $got = $md5->hexdigest;
2620 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
2621 "expected: $exp\n",
2622 " got: $got\n" if ($got ne $exp);
2623 }
2624 }
2625 seek $base, 0, 0 or croak $!;
2626 $fb->{fh} = $dup;
2627 $fb->{base} = $base;
2628 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
2629 }
2631 sub close_file {
2632 my ($self, $fb, $exp) = @_;
2633 my $hash;
2634 my $path = $fb->{path};
2635 if (my $fh = $fb->{fh}) {
2636 seek($fh, 0, 0) or croak $!;
2637 my $md5 = Digest::MD5->new;
2638 $md5->addfile($fh);
2639 my $got = $md5->hexdigest;
2640 die "Checksum mismatch: $path\n",
2641 "expected: $exp\n got: $got\n" if ($got ne $exp);
2642 seek($fh, 0, 0) or croak $!;
2643 if ($fb->{mode_b} == 120000) {
2644 read($fh, my $buf, 5) == 5 or croak $!;
2645 $buf eq 'link ' or die "$path has mode 120000",
2646 "but is not a link\n";
2647 }
2648 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
2649 if (!$pid) {
2650 open STDIN, '<&', $fh or croak $!;
2651 exec qw/git-hash-object -w --stdin/ or croak $!;
2652 }
2653 chomp($hash = do { local $/; <$out> });
2654 close $out or croak $!;
2655 close $fh or croak $!;
2656 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
2657 close $fb->{base} or croak $!;
2658 } else {
2659 $hash = $fb->{blob} or die "no blob information\n";
2660 }
2661 $fb->{pool}->clear;
2662 my $gui = $self->{gui};
2663 print $gui "$fb->{mode_b} $hash\t$path\0" or croak $!;
2664 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $self->{q};
2665 undef;
2666 }
2668 sub abort_edit {
2669 my $self = shift;
2670 eval { command_close_pipe($self->{gui}, $self->{ctx}) };
2671 $self->SUPER::abort_edit(@_);
2672 }
2674 sub close_edit {
2675 my $self = shift;
2676 command_close_pipe($self->{gui}, $self->{ctx});
2677 $self->{git_commit_ok} = 1;
2678 $self->SUPER::close_edit(@_);
2679 }
2681 package SVN::Git::Editor;
2682 use vars qw/@ISA/;
2683 use strict;
2684 use warnings;
2685 use Carp qw/croak/;
2686 use IO::File;
2687 use Git qw/command command_oneline command_noisy
2688 command_output_pipe command_input_pipe command_close_pipe/;
2690 sub new {
2691 my $class = shift;
2692 my $git_svn = shift;
2693 my $self = SVN::Delta::Editor->new(@_);
2694 bless $self, $class;
2695 foreach (qw/svn_path c r ra /) {
2696 die "$_ required!\n" unless (defined $git_svn->{$_});
2697 $self->{$_} = $git_svn->{$_};
2698 }
2699 $self->{pool} = SVN::Pool->new;
2700 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
2701 $self->{rm} = { };
2702 require Digest::MD5;
2703 return $self;
2704 }
2706 sub split_path {
2707 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
2708 }
2710 sub repo_path {
2711 (defined $_[1] && length $_[1]) ? $_[1] : ''
2712 }
2714 sub url_path {
2715 my ($self, $path) = @_;
2716 $self->{ra}->{url} . '/' . $self->repo_path($path);
2717 }
2719 sub rmdirs {
2720 my ($self, $q) = @_;
2721 my $rm = $self->{rm};
2722 delete $rm->{''}; # we never delete the url we're tracking
2723 return unless %$rm;
2725 foreach (keys %$rm) {
2726 my @d = split m#/#, $_;
2727 my $c = shift @d;
2728 $rm->{$c} = 1;
2729 while (@d) {
2730 $c .= '/' . shift @d;
2731 $rm->{$c} = 1;
2732 }
2733 }
2734 delete $rm->{$self->{svn_path}};
2735 delete $rm->{''}; # we never delete the url we're tracking
2736 return unless %$rm;
2738 my ($fh, $ctx) = command_output_pipe(
2739 qw/ls-tree --name-only -r -z/, $self->{c});
2740 local $/ = "\0";
2741 while (<$fh>) {
2742 chomp;
2743 my @dn = split m#/#, $_;
2744 while (pop @dn) {
2745 delete $rm->{join '/', @dn};
2746 }
2747 unless (%$rm) {
2748 close $fh;
2749 return;
2750 }
2751 }
2752 command_close_pipe($fh, $ctx);
2754 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
2755 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
2756 $self->close_directory($bat->{$d}, $p);
2757 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
2758 print "\tD+\t$d/\n" unless $q;
2759 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
2760 delete $bat->{$d};
2761 }
2762 }
2764 sub open_or_add_dir {
2765 my ($self, $full_path, $baton) = @_;
2766 my $t = $self->{ra}->check_path($full_path, $self->{r});
2767 if ($t == $SVN::Node::none) {
2768 return $self->add_directory($full_path, $baton,
2769 undef, -1, $self->{pool});
2770 } elsif ($t == $SVN::Node::dir) {
2771 return $self->open_directory($full_path, $baton,
2772 $self->{r}, $self->{pool});
2773 }
2774 print STDERR "$full_path already exists in repository at ",
2775 "r$self->{r} and it is not a directory (",
2776 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
2777 exit 1;
2778 }
2780 sub ensure_path {
2781 my ($self, $path) = @_;
2782 my $bat = $self->{bat};
2783 $path = $self->repo_path($path);
2784 return $bat->{''} unless (length $path);
2785 my @p = split m#/+#, $path;
2786 my $c = shift @p;
2787 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
2788 while (@p) {
2789 my $c0 = $c;
2790 $c .= '/' . shift @p;
2791 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
2792 }
2793 return $bat->{$c};
2794 }
2796 sub A {
2797 my ($self, $m, $q) = @_;
2798 my ($dir, $file) = split_path($m->{file_b});
2799 my $pbat = $self->ensure_path($dir);
2800 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2801 undef, -1);
2802 print "\tA\t$m->{file_b}\n" unless $q;
2803 $self->chg_file($fbat, $m);
2804 $self->close_file($fbat,undef,$self->{pool});
2805 }
2807 sub C {
2808 my ($self, $m, $q) = @_;
2809 my ($dir, $file) = split_path($m->{file_b});
2810 my $pbat = $self->ensure_path($dir);
2811 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2812 $self->url_path($m->{file_a}), $self->{r});
2813 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $q;
2814 $self->chg_file($fbat, $m);
2815 $self->close_file($fbat,undef,$self->{pool});
2816 }
2818 sub delete_entry {
2819 my ($self, $path, $pbat) = @_;
2820 my $rpath = $self->repo_path($path);
2821 my ($dir, $file) = split_path($rpath);
2822 $self->{rm}->{$dir} = 1;
2823 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
2824 }
2826 sub R {
2827 my ($self, $m, $q) = @_;
2828 my ($dir, $file) = split_path($m->{file_b});
2829 my $pbat = $self->ensure_path($dir);
2830 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2831 $self->url_path($m->{file_a}), $self->{r});
2832 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $q;
2833 $self->chg_file($fbat, $m);
2834 $self->close_file($fbat,undef,$self->{pool});
2836 ($dir, $file) = split_path($m->{file_a});
2837 $pbat = $self->ensure_path($dir);
2838 $self->delete_entry($m->{file_a}, $pbat);
2839 }
2841 sub M {
2842 my ($self, $m, $q) = @_;
2843 my ($dir, $file) = split_path($m->{file_b});
2844 my $pbat = $self->ensure_path($dir);
2845 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
2846 $pbat,$self->{r},$self->{pool});
2847 print "\t$m->{chg}\t$m->{file_b}\n" unless $q;
2848 $self->chg_file($fbat, $m);
2849 $self->close_file($fbat,undef,$self->{pool});
2850 }
2852 sub T { shift->M(@_) }
2854 sub change_file_prop {
2855 my ($self, $fbat, $pname, $pval) = @_;
2856 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
2857 }
2859 sub chg_file {
2860 my ($self, $fbat, $m) = @_;
2861 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
2862 $self->change_file_prop($fbat,'svn:executable','*');
2863 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
2864 $self->change_file_prop($fbat,'svn:executable',undef);
2865 }
2866 my $fh = IO::File->new_tmpfile or croak $!;
2867 if ($m->{mode_b} =~ /^120/) {
2868 print $fh 'link ' or croak $!;
2869 $self->change_file_prop($fbat,'svn:special','*');
2870 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
2871 $self->change_file_prop($fbat,'svn:special',undef);
2872 }
2873 defined(my $pid = fork) or croak $!;
2874 if (!$pid) {
2875 open STDOUT, '>&', $fh or croak $!;
2876 exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!;
2877 }
2878 waitpid $pid, 0;
2879 croak $? if $?;
2880 $fh->flush == 0 or croak $!;
2881 seek $fh, 0, 0 or croak $!;
2883 my $md5 = Digest::MD5->new;
2884 $md5->addfile($fh) or croak $!;
2885 seek $fh, 0, 0 or croak $!;
2887 my $exp = $md5->hexdigest;
2888 my $pool = SVN::Pool->new;
2889 my $atd = $self->apply_textdelta($fbat, undef, $pool);
2890 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
2891 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
2892 $pool->clear;
2894 close $fh or croak $!;
2895 }
2897 sub D {
2898 my ($self, $m, $q) = @_;
2899 my ($dir, $file) = split_path($m->{file_b});
2900 my $pbat = $self->ensure_path($dir);
2901 print "\tD\t$m->{file_b}\n" unless $q;
2902 $self->delete_entry($m->{file_b}, $pbat);
2903 }
2905 sub close_edit {
2906 my ($self) = @_;
2907 my ($p,$bat) = ($self->{pool}, $self->{bat});
2908 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
2909 $self->close_directory($bat->{$_}, $p);
2910 }
2911 $self->SUPER::close_edit($p);
2912 $p->clear;
2913 }
2915 sub abort_edit {
2916 my ($self) = @_;
2917 $self->SUPER::abort_edit($self->{pool});
2918 $self->{pool}->clear;
2919 }
2921 package Git::SVN::Ra;
2922 use vars qw/@ISA $config_dir/;
2923 use strict;
2924 use warnings;
2925 my ($can_do_switch);
2927 BEGIN {
2928 # enforce temporary pool usage for some simple functions
2929 my $e;
2930 foreach (qw/get_latest_revnum rev_proplist get_file
2931 check_path get_dir get_uuid get_repos_root/) {
2932 $e .= "sub $_ {
2933 my \$self = shift;
2934 my \$pool = SVN::Pool->new;
2935 my \@ret = \$self->SUPER::$_(\@_,\$pool);
2936 \$pool->clear;
2937 wantarray ? \@ret : \$ret[0]; }\n";
2938 }
2939 eval $e;
2940 }
2942 sub new {
2943 my ($class, $url) = @_;
2944 SVN::_Core::svn_config_ensure($config_dir, undef);
2945 my ($baton, $callbacks) = SVN::Core::auth_open_helper([
2946 SVN::Client::get_simple_provider(),
2947 SVN::Client::get_ssl_server_trust_file_provider(),
2948 SVN::Client::get_simple_prompt_provider(
2949 \&Git::SVN::Prompt::simple, 2),
2950 SVN::Client::get_ssl_client_cert_prompt_provider(
2951 \&Git::SVN::Prompt::ssl_client_cert, 2),
2952 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
2953 \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
2954 SVN::Client::get_username_provider(),
2955 SVN::Client::get_ssl_server_trust_prompt_provider(
2956 \&Git::SVN::Prompt::ssl_server_trust),
2957 SVN::Client::get_username_prompt_provider(
2958 \&Git::SVN::Prompt::username, 2),
2959 ]);
2960 my $config = SVN::Core::config_get_config($config_dir);
2961 my $self = SVN::Ra->new(url => $url, auth => $baton,
2962 config => $config,
2963 pool => SVN::Pool->new,
2964 auth_provider_callbacks => $callbacks);
2965 $self->{svn_path} = $url;
2966 $self->{repos_root} = $self->get_repos_root;
2967 $self->{svn_path} =~ s#^\Q$self->{repos_root}\E/*##;
2968 bless $self, $class;
2969 }
2971 sub DESTROY {
2972 my $self = shift;
2973 $self->{pool}->clear if $self->{pool};
2974 $self->SUPER::DESTROY(@_);
2975 }
2977 sub dup {
2978 my ($self) = @_;
2979 my $dup = SVN::Ra->new(pool => SVN::Pool->new,
2980 map { $_ => $self->{$_} } qw/config url
2981 auth auth_provider_callbacks repos_root svn_path/);
2982 bless $dup, ref $self;
2983 }
2985 sub get_log {
2986 my ($self, @args) = @_;
2987 my $pool = SVN::Pool->new;
2988 $args[4]-- if $args[4] && ! $::_follow_parent;
2989 splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
2990 my $ret = $self->SUPER::get_log(@args, $pool);
2991 $pool->clear;
2992 $ret;
2993 }
2995 sub get_commit_editor {
2996 my ($self, $msg, $cb, $pool) = @_;
2997 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
2998 $self->SUPER::get_commit_editor($msg, $cb, @lock, $pool);
2999 }
3001 sub uuid {
3002 my ($self) = @_;
3003 $self->{uuid} ||= $self->get_uuid;
3004 }
3006 sub gs_do_update {
3007 my ($self, $rev_a, $rev_b, $path, $recurse, $editor) = @_;
3008 my $pool = SVN::Pool->new;
3009 my $reporter = $self->do_update($rev_b, $path, $recurse,
3010 $editor, $pool);
3011 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3012 my $new = ($rev_a == $rev_b);
3013 $reporter->set_path($path, $rev_a, $new, @lock, $pool);
3014 $reporter->finish_report($pool);
3015 $pool->clear;
3016 $editor->{git_commit_ok};
3017 }
3019 sub gs_do_switch {
3020 my ($self, $rev_a, $rev_b, $path, $recurse, $url_b, $editor) = @_;
3021 my $pool = SVN::Pool->new;
3022 my $reporter = $self->do_switch($rev_b, $path, $recurse,
3023 $url_b, $editor, $pool);
3024 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
3025 $reporter->set_path($path, $rev_a, 0, @lock, $pool);
3026 $reporter->finish_report($pool);
3027 $pool->clear;
3028 $editor->{git_commit_ok};
3029 }
3031 sub can_do_switch {
3032 my $self = shift;
3033 unless (defined $can_do_switch) {
3034 my $pool = SVN::Pool->new;
3035 my $rep = eval {
3036 $self->do_switch(1, '', 0, $self->{url},
3037 SVN::Delta::Editor->new, $pool);
3038 };
3039 if ($@) {
3040 $can_do_switch = 0;
3041 } else {
3042 $rep->abort_report($pool);
3043 $can_do_switch = 1;
3044 }
3045 $pool->clear;
3046 }
3047 $can_do_switch;
3048 }
3050 __END__
3052 Data structures:
3054 $log_msg hashref as returned by libsvn_log_entry()
3055 {
3056 msg => 'whitespace-formatted log entry
3057 ', # trailing newline is preserved
3058 revision => '8', # integer
3059 date => '2004-02-24T17:01:44.108345Z', # commit date
3060 author => 'committer name'
3061 };
3063 @mods = array of diff-index line hashes, each element represents one line
3064 of diff-index output
3066 diff-index line ($m hash)
3067 {
3068 mode_a => first column of diff-index output, no leading ':',
3069 mode_b => second column of diff-index output,
3070 sha1_b => sha1sum of the final blob,
3071 chg => change type [MCRADT],
3072 file_a => original file name of a file (iff chg is 'C' or 'R')
3073 file_b => new/current file name of a file (any chg)
3074 }
3075 ;
3077 # retval of read_url_paths{,_all}();
3078 $l_map = {
3079 # repository root url
3080 'https://svn.musicpd.org' => {
3081 # repository path # GIT_SVN_ID
3082 'mpd/trunk' => 'trunk',
3083 'mpd/tags/0.11.5' => 'tags/0.11.5',
3084 },
3085 }
3087 Notes:
3088 I don't trust the each() function on unless I created %hash myself
3089 because the internal iterator may not have started at base.