0fc386a7158c14e93f9f3c4fa19e01603aa9b05a
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 $SVN_INFO $SVN_WC $SVN_UUID
8 $GIT_SVN_INDEX $GIT_SVN
9 $GIT_DIR $GIT_SVN_DIR $REVDB/;
10$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
11$VERSION = '@@GIT_VERSION@@';
12use Cwd qw/abs_path/;
14$GIT_DIR = abs_path($ENV{GIT_DIR} || '.git');
15$ENV{GIT_DIR} = $GIT_DIR;
16my $LC_ALL = $ENV{LC_ALL};
18my $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
23# properties that we do not log:
25my %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);
33sub fatal (@) { print STDERR @_; exit 1 }
35require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
36require SVN::Ra;
37require SVN::Delta;
38if ($SVN::Core::VERSION lt '1.1.0') {
39 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)\n";
40}
41push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
42push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
43*SVN::Git::Fetcher::process_rm = *process_rm;
44use Carp qw/croak/;
45use IO::File qw//;
46use File::Basename qw/dirname basename/;
47use File::Path qw/mkpath/;
48use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
49use POSIX qw/strftime/;
50use IPC::Open3;
51use Memoize;
52use Git qw/command command_oneline command_noisy
53 command_output_pipe command_input_pipe command_close_pipe/;
54memoize('revisions_eq');
55memoize('cmt_metadata');
56memoize('get_commit_time');
57my ($SVN);
59my $_optimize_commits = 1 unless $ENV{GIT_SVN_NO_OPTIMIZE_COMMITS};
61my $sha1 = qr/[a-f\d]{40}/;
62my $sha1_short = qr/[a-f\d]{4,40}/;
63my $_esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
64my ($_revision,$_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, $_follow_parent, $_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 $_username, $_config_dir, $_no_auth_cache,
73 $_pager, $_color);
74my (@_branch_from, %tree_map, %users, %rusers, %equiv);
75my ($_svn_can_do_switch);
76my @repo_path_split_cache;
77my %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' => \$_username,
87 'config-dir=s' => \$_config_dir,
88 'no-auth-cache' => \$_no_auth_cache,
89 'ignore-nodate' => \$_ignore_nodate,
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 => [ \&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' => \$_username,
135 'config-dir=s' => \$_config_dir,
136 'no-auth-cache' => \$_no_auth_cache,
137 } ],
138 'multi-fetch' => [ \&multi_fetch,
139 'Fetch multiple trees (like git-svnimport)',
140 \%fc_opts ],
141 'log' => [ \&show_log, 'Show commit logs',
142 { 'limit=i' => \$_limit,
143 'revision|r=s' => \$_revision,
144 'verbose|v' => \$_verbose,
145 'incremental' => \$_incremental,
146 'oneline' => \$_oneline,
147 'show-commit' => \$_show_commit,
148 'non-recursive' => \$_non_recursive,
149 'authors-file|A=s' => \$_authors,
150 'color' => \$_color,
151 'pager=s' => \$_pager,
152 } ],
153 'commit-diff' => [ \&commit_diff, 'Commit a diff between two trees',
154 { 'message|m=s' => \$_message,
155 'file|F=s' => \$_file,
156 'revision|r=s' => \$_revision,
157 %cmt_opts } ],
158);
159my $cmd;
161for (my $i = 0; $i < @ARGV; $i++) {
162 if (defined $cmd{$ARGV[$i]}) {
163 $cmd = $ARGV[$i];
164 splice @ARGV, $i, 1;
165 last;
166 }
167};
168my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
170read_repo_config(\%opts);
172my $rv = GetOptions(%opts, 'help|H|h' => \$_help,
173 'version|V' => \$_version,
174 'id|i=s' => \$GIT_SVN);
175exit 1 if (!$rv && $cmd ne 'log');
176set_default_vals();
178usage(0) if $_help;
179version() if $_version;
180usage(1) unless defined $cmd;
181init_vars();
182load_authors() if $_authors;
183load_all_refs() if $_branch_all_refs;
184migration_check() unless $cmd =~ /^(?:init|rebuild|multi-init|commit-diff)$/;
185$cmd{$cmd}->[0]->(@ARGV);
186exit 0;
187####################### primary functions ######################
189sub usage {
190 my $exit = shift || 0;
191 my $fd = $exit ? \*STDERR : \*STDOUT;
192 print $fd <<"";
193git-svn - bidirectional operations between a single Subversion tree and git
194Usage: $0 <command> [options] [arguments]\n
195 print $fd "Available commands:\n" unless $cmd;
197 foreach (sort keys %cmd) {
199 next if $cmd && $cmd ne $_;
200 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
201 foreach (keys %{$cmd{$_}->[2]}) {
202 # prints out arguments as they should be passed:
203 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
204 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
205 "--$_" : "-$_" }
206 split /\|/,$_)," $x\n";
207 }
208 }
209 print $fd <<"";
210\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
211arbitrary identifier if you're tracking multiple SVN branches/repositories in
212one git repository and want to keep them separate. See git-svn(1) for more
213information.
214 exit $exit;
216}
217sub version {
219 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
220 exit 0;
221}
222sub rebuild {
224 if (!verify_ref("refs/remotes/$GIT_SVN^0")) {
225 copy_remote_ref();
226 }
227 $SVN_URL = shift or undef;
228 my $newest_rev = 0;
229 if ($_upgrade) {
230 command_noisy('update-ref',"refs/remotes/$GIT_SVN","
231 $GIT_SVN-HEAD");
232 } else {
233 check_upgrade_needed();
234 }
235 my ($rev_list, $ctx) = command_output_pipe("rev-list",
237 "refs/remotes/$GIT_SVN");
238 my $latest;
239 while (<$rev_list>) {
240 chomp;
241 my $c = $_;
242 croak "Non-SHA1: $c\n" unless $c =~ /^$sha1$/o;
243 my @commit = grep(/^git-svn-id: /,
244 command(qw/cat-file commit/, $c));
245 next if (!@commit); # skip merges
246 my ($url, $rev, $uuid) = extract_metadata($commit[$#commit]);
247 if (!defined $rev || !$uuid) {
248 croak "Unable to extract revision or UUID from ",
249 "$c, $commit[$#commit]\n";
250 }
251 # if we merged or otherwise started elsewhere, this is
253 # how we break out of it
254 next if (defined $SVN_UUID && ($uuid ne $SVN_UUID));
255 next if (defined $SVN_URL && defined $url && ($url ne $SVN_URL));
256 unless (defined $latest) {
258 if (!$SVN_URL && !$url) {
259 croak "SVN repository location required: $url\n";
260 }
261 $SVN_URL ||= $url;
262 $SVN_UUID ||= $uuid;
263 setup_git_svn();
264 $latest = $rev;
265 }
266 revdb_set($REVDB, $rev, $c);
267 print "r$rev = $c\n";
268 $newest_rev = $rev if ($rev > $newest_rev);
269 }
270 command_close_pipe($rev_list, $ctx);
271}
272sub init {
274 my $url = shift or die "SVN repository location required " .
275 "as a command-line argument\n";
276 $url =~ s!/+$!!; # strip trailing slash
277 if (my $repo_path = shift) {
279 unless (-d $repo_path) {
280 mkpath([$repo_path]);
281 }
282 $GIT_DIR = $ENV{GIT_DIR} = $repo_path . "/.git";
283 init_vars();
284 }
285 $SVN_URL = $url;
287 unless (-d $GIT_DIR) {
288 my @init_db = ('init-db');
289 push @init_db, "--template=$_template" if defined $_template;
290 push @init_db, "--shared" if defined $_shared;
291 command_noisy(@init_db);
292 }
293 setup_git_svn();
294}
295sub fetch {
297 check_upgrade_needed();
298 $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
299 my $ret = fetch_lib(@_);
300 if ($ret->{commit} && !verify_ref('refs/heads/master^0')) {
301 command_noisy(qw(update-ref refs/heads/master),$ret->{commit});
302 }
303 return $ret;
304}
305sub fetch_lib {
307 my (@parents) = @_;
308 $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
309 $SVN ||= libsvn_connect($SVN_URL);
310 my ($last_rev, $last_commit) = svn_grab_base_rev();
311 my ($base, $head) = libsvn_parse_revision($last_rev);
312 if ($base > $head) {
313 return { revision => $last_rev, commit => $last_commit }
314 }
315 my $index = set_index($GIT_SVN_INDEX);
316 # limit ourselves and also fork() since get_log won't release memory
318 # after processing a revision and SVN stuff seems to leak
319 my $inc = 1000;
320 my ($min, $max) = ($base, $head < $base+$inc ? $head : $base+$inc);
321 read_uuid();
322 if (defined $last_commit) {
323 unless (-e $GIT_SVN_INDEX) {
324 command_noisy('read-tree', $last_commit);
325 }
326 my $x = command_oneline('write-tree');
327 my ($y) = (command(qw/cat-file commit/, $last_commit)
328 =~ /^tree ($sha1)/m);
329 if ($y ne $x) {
330 unlink $GIT_SVN_INDEX or croak $!;
331 command_noisy('read-tree', $last_commit);
332 }
333 $x = command_oneline('write-tree');
334 if ($y ne $x) {
335 print STDERR "trees ($last_commit) $y != $x\n",
336 "Something is seriously wrong...\n";
337 }
338 }
339 while (1) {
340 # fork, because using SVN::Pool with get_log() still doesn't
341 # seem to help enough to keep memory usage down.
342 defined(my $pid = fork) or croak $!;
343 if (!$pid) {
344 $SVN::Error::handler = \&libsvn_skip_unknown_revs;
345 # Yes I'm perfectly aware that the fourth argument
347 # below is the limit revisions number. Unfortunately
348 # performance sucks with it enabled, so it's much
349 # faster to fetch revision ranges instead of relying
350 # on the limiter.
351 libsvn_get_log(libsvn_dup_ra($SVN), [''],
352 $min, $max, 0, 1, 1,
353 sub {
354 my $log_msg;
355 if ($last_commit) {
356 $log_msg = libsvn_fetch(
357 $last_commit, @_);
358 $last_commit = git_commit(
359 $log_msg,
360 $last_commit,
361 @parents);
362 } else {
363 $log_msg = libsvn_new_tree(@_);
364 $last_commit = git_commit(
365 $log_msg, @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 $SVN = libsvn_connect($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 read_uuid();
424 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
425 my $commit_msg = "$GIT_SVN_DIR/.svn-commit.tmp.$$";
426 my $repo;
428 set_svn_commit_env();
429 foreach my $c (@revs) {
430 my $log_msg = get_commit_message($c, $commit_msg);
431 # fork for each commit because there's a memory leak I
433 # can't track down... (it's probably in the SVN code)
434 defined(my $pid = open my $fh, '-|') or croak $!;
435 if (!$pid) {
436 my $ed = SVN::Git::Editor->new(
437 { r => $r_last,
438 ra => libsvn_dup_ra($SVN),
439 c => $c,
440 svn_path => $SVN->{svn_path},
441 },
442 $SVN->get_commit_editor(
443 $log_msg->{msg},
444 sub {
445 libsvn_commit_cb(
446 @_, $c,
447 $log_msg->{msg},
448 $r_last,
449 $cmt_last)
450 },
451 @lock)
452 );
453 my $mods = libsvn_checkout_tree($cmt_last, $c, $ed);
454 if (@$mods == 0) {
455 print "No changes\nr$r_last = $cmt_last\n";
456 $ed->abort_edit;
457 } else {
458 $ed->close_edit;
459 }
460 exit 0;
461 }
462 my ($r_new, $cmt_new, $no);
463 while (<$fh>) {
464 print $_;
465 chomp;
466 if (/^r(\d+) = ($sha1)$/o) {
467 ($r_new, $cmt_new) = ($1, $2);
468 } elsif ($_ eq 'No changes') {
469 $no = 1;
470 }
471 }
472 close $fh or exit 1;
473 if (! defined $r_new && ! defined $cmt_new) {
474 unless ($no) {
475 die "Failed to parse revision information\n";
476 }
477 } else {
478 ($r_last, $cmt_last) = ($r_new, $cmt_new);
479 }
480 }
481 $ENV{LC_ALL} = 'C';
482 unlink $commit_msg;
483}
484sub dcommit {
486 my $head = shift || 'HEAD';
487 my $gs = "refs/remotes/$GIT_SVN";
488 my @refs = command(qw/rev-list --no-merges/, "$gs..$head");
489 my $last_rev;
490 foreach my $d (reverse @refs) {
491 if (!verify_ref("$d~1")) {
492 die "Commit $d\n",
493 "has no parent commit, and therefore ",
494 "nothing to diff against.\n",
495 "You should be working from a repository ",
496 "originally created by git-svn\n";
497 }
498 unless (defined $last_rev) {
499 (undef, $last_rev, undef) = cmt_metadata("$d~1");
500 unless (defined $last_rev) {
501 die "Unable to extract revision information ",
502 "from commit $d~1\n";
503 }
504 }
505 if ($_dry_run) {
506 print "diff-tree $d~1 $d\n";
507 } else {
508 if (my $r = commit_diff("$d~1", $d, undef, $last_rev)) {
509 $last_rev = $r;
510 } # else: no changes, same $last_rev
511 }
512 }
513 return if $_dry_run;
514 fetch();
515 my @diff = command('diff-tree', 'HEAD', $gs, '--');
516 my @finish;
517 if (@diff) {
518 @finish = qw/rebase/;
519 push @finish, qw/--merge/ if $_merge;
520 push @finish, "--strategy=$_strategy" if $_strategy;
521 print STDERR "W: HEAD and $gs differ, using @finish:\n", @diff;
522 } else {
523 print "No changes between current HEAD and $gs\n",
524 "Resetting to the latest $gs\n";
525 @finish = qw/reset --mixed/;
526 }
527 command_noisy(@finish, $gs);
528}
529sub show_ignore {
531 $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
532 my $repo;
533 $SVN ||= libsvn_connect($SVN_URL);
534 my $r = defined $_revision ? $_revision : $SVN->get_latest_revnum;
535 libsvn_traverse_ignore(\*STDOUT, $SVN->{svn_path}, $r);
536}
537sub graft_branches {
539 my $gr_file = "$GIT_DIR/info/grafts";
540 my ($grafts, $comments) = read_grafts($gr_file);
541 my $gr_sha1;
542 if (%$grafts) {
544 # temporarily disable our grafts file to make this idempotent
545 chomp($gr_sha1 = command(qw/hash-object -w/,$gr_file));
546 rename $gr_file, "$gr_file~$gr_sha1" or croak $!;
547 }
548 my $l_map = read_url_paths();
550 my @re = map { qr/$_/is } @_opt_m if @_opt_m;
551 unless ($_no_default_regex) {
552 push @re, (qr/\b(?:merge|merging|merged)\s+with\s+([\w\.\-]+)/i,
553 qr/\b(?:merge|merging|merged)\s+([\w\.\-]+)/i,
554 qr/\b(?:from|of)\s+([\w\.\-]+)/i );
555 }
556 foreach my $u (keys %$l_map) {
557 if (@re) {
558 foreach my $p (keys %{$l_map->{$u}}) {
559 graft_merge_msg($grafts,$l_map,$u,$p,@re);
560 }
561 }
562 unless ($_no_graft_copy) {
563 graft_file_copy_lib($grafts,$l_map,$u);
564 }
565 }
566 graft_tree_joins($grafts);
567 write_grafts($grafts, $comments, $gr_file);
569 unlink "$gr_file~$gr_sha1" if $gr_sha1;
570}
571sub multi_init {
573 my $url = shift;
574 unless (defined $_trunk || defined $_branches || defined $_tags) {
575 usage(1);
576 }
577 if (defined $_trunk) {
578 my $trunk_url = complete_svn_url($url, $_trunk);
579 my $ch_id;
580 if ($GIT_SVN eq 'git-svn') {
581 $ch_id = 1;
582 $GIT_SVN = $ENV{GIT_SVN_ID} = 'trunk';
583 }
584 init_vars();
585 unless (-d $GIT_SVN_DIR) {
586 if ($ch_id) {
587 print "GIT_SVN_ID set to 'trunk' for ",
588 "$trunk_url ($_trunk)\n";
589 }
590 init($trunk_url);
591 command_noisy('repo-config', 'svn.trunk', $trunk_url);
592 }
593 }
594 complete_url_ls_init($url, $_branches, '--branches/-b', '');
595 complete_url_ls_init($url, $_tags, '--tags/-t', 'tags/');
596}
597sub multi_fetch {
599 # try to do trunk first, since branches/tags
600 # may be descended from it.
601 if (-e "$GIT_DIR/svn/trunk/info/url") {
602 fetch_child_id('trunk', @_);
603 }
604 rec_fetch('', "$GIT_DIR/svn", @_);
605}
606sub show_log {
608 my (@args) = @_;
609 my ($r_min, $r_max);
610 my $r_last = -1; # prevent dupes
611 rload_authors() if $_authors;
612 if (defined $TZ) {
613 $ENV{TZ} = $TZ;
614 } else {
615 delete $ENV{TZ};
616 }
617 if (defined $_revision) {
618 if ($_revision =~ /^(\d+):(\d+)$/) {
619 ($r_min, $r_max) = ($1, $2);
620 } elsif ($_revision =~ /^\d+$/) {
621 $r_min = $r_max = $_revision;
622 } else {
623 print STDERR "-r$_revision is not supported, use ",
624 "standard \'git log\' arguments instead\n";
625 exit 1;
626 }
627 }
628 config_pager();
630 @args = (git_svn_log_cmd($r_min, $r_max), @args);
631 my $log = command_output_pipe(@args);
632 run_pager();
633 my (@k, $c, $d);
634 while (<$log>) {
636 if (/^${_esc_color}commit ($sha1_short)/o) {
637 my $cmt = $1;
638 if ($c && cmt_showable($c) && $c->{r} != $r_last) {
639 $r_last = $c->{r};
640 process_commit($c, $r_min, $r_max, \@k) or
641 goto out;
642 }
643 $d = undef;
644 $c = { c => $cmt };
645 } elsif (/^${_esc_color}author (.+) (\d+) ([\-\+]?\d+)$/) {
646 get_author_info($c, $1, $2, $3);
647 } elsif (/^${_esc_color}(?:tree|parent|committer) /) {
648 # ignore
649 } elsif (/^${_esc_color}:\d{6} \d{6} $sha1_short/o) {
650 push @{$c->{raw}}, $_;
651 } elsif (/^${_esc_color}[ACRMDT]\t/) {
652 # we could add $SVN->{svn_path} here, but that requires
653 # remote access at the moment (repo_path_split)...
654 s#^(${_esc_color})([ACRMDT])\t#$1 $2 #;
655 push @{$c->{changed}}, $_;
656 } elsif (/^${_esc_color}diff /) {
657 $d = 1;
658 push @{$c->{diff}}, $_;
659 } elsif ($d) {
660 push @{$c->{diff}}, $_;
661 } elsif (/^${_esc_color} (git-svn-id:.+)$/) {
662 ($c->{url}, $c->{r}, undef) = extract_metadata($1);
663 } elsif (s/^${_esc_color} //) {
664 push @{$c->{l}}, $_;
665 }
666 }
667 if ($c && defined $c->{r} && $c->{r} != $r_last) {
668 $r_last = $c->{r};
669 process_commit($c, $r_min, $r_max, \@k);
670 }
671 if (@k) {
672 my $swap = $r_max;
673 $r_max = $r_min;
674 $r_min = $swap;
675 process_commit($_, $r_min, $r_max) foreach reverse @k;
676 }
677out:
678 eval { command_close_pipe($log) };
679 print '-' x72,"\n" unless $_incremental || $_oneline;
680}
681sub commit_diff_usage {
683 print STDERR "Usage: $0 commit-diff <tree-ish> <tree-ish> [<URL>]\n";
684 exit 1
685}
686sub commit_diff {
688 my $ta = shift or commit_diff_usage();
689 my $tb = shift or commit_diff_usage();
690 if (!eval { $SVN_URL = shift || file_to_s("$GIT_SVN_DIR/info/url") }) {
691 print STDERR "Needed URL or usable git-svn id command-line\n";
692 commit_diff_usage();
693 }
694 my $r = shift;
695 unless (defined $r) {
696 if (defined $_revision) {
697 $r = $_revision
698 } else {
699 die "-r|--revision is a required argument\n";
700 }
701 }
702 if (defined $_message && defined $_file) {
703 print STDERR "Both --message/-m and --file/-F specified ",
704 "for the commit message.\n",
705 "I have no idea what you mean\n";
706 exit 1;
707 }
708 if (defined $_file) {
709 $_message = file_to_s($_file);
710 } else {
711 $_message ||= get_commit_message($tb,
712 "$GIT_DIR/.svn-commit.tmp.$$")->{msg};
713 }
714 $SVN ||= libsvn_connect($SVN_URL);
715 if ($r eq 'HEAD') {
716 $r = $SVN->get_latest_revnum;
717 } elsif ($r !~ /^\d+$/) {
718 die "revision argument: $r not understood by git-svn\n";
719 }
720 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : ();
721 my $rev_committed;
722 my $ed = SVN::Git::Editor->new({ r => $r,
723 ra => libsvn_dup_ra($SVN),
724 c => $tb,
725 svn_path => $SVN->{svn_path}
726 },
727 $SVN->get_commit_editor($_message,
728 sub {
729 $rev_committed = $_[0];
730 print "Committed $_[0]\n";
731 }, @lock)
732 );
733 eval {
734 my $mods = libsvn_checkout_tree($ta, $tb, $ed);
735 if (@$mods == 0) {
736 print "No changes\n$ta == $tb\n";
737 $ed->abort_edit;
738 } else {
739 $ed->close_edit;
740 }
741 };
742 fatal "$@\n" if $@;
743 $_message = $_file = undef;
744 return $rev_committed;
745}
746########################### utility functions #########################
748sub cmt_showable {
750 my ($c) = @_;
751 return 1 if defined $c->{r};
752 if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
753 $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
754 my @msg = command(qw/cat-file commit/, $c->{c});
755 shift @msg while ($msg[0] ne "\n");
756 shift @msg;
757 @{$c->{l}} = grep !/^git-svn-id: /, @msg;
758 (undef, $c->{r}, undef) = extract_metadata(
760 (grep(/^git-svn-id: /, @msg))[-1]);
761 }
762 return defined $c->{r};
763}
764sub log_use_color {
766 return 1 if $_color;
767 my ($dc, $dcvar);
768 $dcvar = 'color.diff';
769 $dc = `git-repo-config --get $dcvar`;
770 if ($dc eq '') {
771 # nothing at all; fallback to "diff.color"
772 $dcvar = 'diff.color';
773 $dc = `git-repo-config --get $dcvar`;
774 }
775 chomp($dc);
776 if ($dc eq 'auto') {
777 my $pc;
778 $pc = `git-repo-config --get color.pager`;
779 if ($pc eq '') {
780 # does not have it -- fallback to pager.color
781 $pc = `git-repo-config --bool --get pager.color`;
782 }
783 else {
784 $pc = `git-repo-config --bool --get color.pager`;
785 if ($?) {
786 $pc = 'false';
787 }
788 }
789 chomp($pc);
790 if (-t *STDOUT || (defined $_pager && $pc eq 'true')) {
791 return ($ENV{TERM} && $ENV{TERM} ne 'dumb');
792 }
793 return 0;
794 }
795 return 0 if $dc eq 'never';
796 return 1 if $dc eq 'always';
797 chomp($dc = `git-repo-config --bool --get $dcvar`);
798 return ($dc eq 'true');
799}
800sub git_svn_log_cmd {
802 my ($r_min, $r_max) = @_;
803 my @cmd = (qw/log --abbrev-commit --pretty=raw
804 --default/, "refs/remotes/$GIT_SVN");
805 push @cmd, '-r' unless $_non_recursive;
806 push @cmd, qw/--raw --name-status/ if $_verbose;
807 push @cmd, '--color' if log_use_color();
808 return @cmd unless defined $r_max;
809 if ($r_max == $r_min) {
810 push @cmd, '--max-count=1';
811 if (my $c = revdb_get($REVDB, $r_max)) {
812 push @cmd, $c;
813 }
814 } else {
815 my ($c_min, $c_max);
816 $c_max = revdb_get($REVDB, $r_max);
817 $c_min = revdb_get($REVDB, $r_min);
818 if (defined $c_min && defined $c_max) {
819 if ($r_max > $r_max) {
820 push @cmd, "$c_min..$c_max";
821 } else {
822 push @cmd, "$c_max..$c_min";
823 }
824 } elsif ($r_max > $r_min) {
825 push @cmd, $c_max;
826 } else {
827 push @cmd, $c_min;
828 }
829 }
830 return @cmd;
831}
832sub fetch_child_id {
834 my $id = shift;
835 print "Fetching $id\n";
836 my $ref = "$GIT_DIR/refs/remotes/$id";
837 defined(my $pid = open my $fh, '-|') or croak $!;
838 if (!$pid) {
839 $_repack = undef;
840 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
841 init_vars();
842 fetch(@_);
843 exit 0;
844 }
845 while (<$fh>) {
846 print $_;
847 check_repack() if (/^r\d+ = $sha1/);
848 }
849 close $fh or croak $?;
850}
851sub rec_fetch {
853 my ($pfx, $p, @args) = @_;
854 my @dir;
855 foreach (sort <$p/*>) {
856 if (-r "$_/info/url") {
857 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
858 my $id = $pfx . basename $_;
859 next if $id eq 'trunk';
860 fetch_child_id($id, @args);
861 } elsif (-d $_) {
862 push @dir, $_;
863 }
864 }
865 foreach (@dir) {
866 my $x = $_;
867 $x =~ s!^\Q$GIT_DIR\E/svn/!!;
868 rec_fetch($x, $_);
869 }
870}
871sub complete_svn_url {
873 my ($url, $path) = @_;
874 $path =~ s#/+$##;
875 $url =~ s#/+$## if $url;
876 if ($path !~ m#^[a-z\+]+://#) {
877 $path = '/' . $path if ($path !~ m#^/#);
878 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
879 fatal("E: '$path' is not a complete URL ",
880 "and a separate URL is not specified\n");
881 }
882 $path = $url . $path;
883 }
884 return $path;
885}
886sub complete_url_ls_init {
888 my ($url, $path, $switch, $pfx) = @_;
889 unless ($path) {
890 print STDERR "W: $switch not specified\n";
891 return;
892 }
893 my $full_url = complete_svn_url($url, $path);
894 my @ls = libsvn_ls_fullurl($full_url);
895 defined(my $pid = fork) or croak $!;
896 if (!$pid) {
897 foreach my $u (map { "$full_url/$_" } (grep m!/$!, @ls)) {
898 $u =~ s#/+$##;
899 if ($u !~ m!\Q$full_url\E/(.+)$!) {
900 print STDERR "W: Unrecognized URL: $u\n";
901 die "This should never happen\n";
902 }
903 # don't try to init already existing refs
904 my $id = $pfx.$1;
905 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
906 init_vars();
907 unless (-d $GIT_SVN_DIR) {
908 print "init $u => $id\n";
909 init($u);
910 }
911 }
912 exit 0;
913 }
914 waitpid $pid, 0;
915 croak $? if $?;
916 my ($n) = ($switch =~ /^--(\w+)/);
917 command_noisy('repo-config', "svn.$n", $full_url);
918}
919sub common_prefix {
921 my $paths = shift;
922 my %common;
923 foreach (@$paths) {
924 my @tmp = split m#/#, $_;
925 my $p = '';
926 while (my $x = shift @tmp) {
927 $p .= "/$x";
928 $common{$p} ||= 0;
929 $common{$p}++;
930 }
931 }
932 foreach (sort {length $b <=> length $a} keys %common) {
933 if ($common{$_} == @$paths) {
934 return $_;
935 }
936 }
937 return '';
938}
939# grafts set here are 'stronger' in that they're based on actual tree
941# matches, and won't be deleted from merge-base checking in write_grafts()
942sub graft_tree_joins {
943 my $grafts = shift;
944 map_tree_joins() if (@_branch_from && !%tree_map);
945 return unless %tree_map;
946 git_svn_each(sub {
948 my $i = shift;
949 my @args = (qw/rev-list --pretty=raw/, "refs/remotes/$i");
950 my ($fh, $ctx) = command_output_pipe(@args);
951 while (<$fh>) {
952 next unless /^commit ($sha1)$/o;
953 my $c = $1;
954 my ($t) = (<$fh> =~ /^tree ($sha1)$/o);
955 next unless $tree_map{$t};
956 my $l;
958 do {
959 $l = readline $fh;
960 } until ($l =~ /^committer (?:.+) (\d+) ([\-\+]?\d+)$/);
961 my ($s, $tz) = ($1, $2);
963 if ($tz =~ s/^\+//) {
964 $s += tz_to_s_offset($tz);
965 } elsif ($tz =~ s/^\-//) {
966 $s -= tz_to_s_offset($tz);
967 }
968 my ($url_a, $r_a, $uuid_a) = cmt_metadata($c);
970 foreach my $p (@{$tree_map{$t}}) {
972 next if $p eq $c;
973 my $mb = eval { command('merge-base', $c, $p) };
974 next unless ($@ || $?);
975 if (defined $r_a) {
976 # see if SVN says it's a relative
977 my ($url_b, $r_b, $uuid_b) =
978 cmt_metadata($p);
979 next if (defined $url_b &&
980 defined $url_a &&
981 ($url_a eq $url_b) &&
982 ($uuid_a eq $uuid_b));
983 if ($uuid_a eq $uuid_b) {
984 if ($r_b < $r_a) {
985 $grafts->{$c}->{$p} = 2;
986 next;
987 } elsif ($r_b > $r_a) {
988 $grafts->{$p}->{$c} = 2;
989 next;
990 }
991 }
992 }
993 my $ct = get_commit_time($p);
994 if ($ct < $s) {
995 $grafts->{$c}->{$p} = 2;
996 } elsif ($ct > $s) {
997 $grafts->{$p}->{$c} = 2;
998 }
999 # what should we do when $ct == $s ?
1000 }
1001 }
1002 command_close_pipe($fh, $ctx);
1003 });
1004}
1005sub graft_file_copy_lib {
1007 my ($grafts, $l_map, $u) = @_;
1008 my $tree_paths = $l_map->{$u};
1009 my $pfx = common_prefix([keys %$tree_paths]);
1010 my ($repo, $path) = repo_path_split($u.$pfx);
1011 $SVN = libsvn_connect($repo);
1012 my ($base, $head) = libsvn_parse_revision();
1014 my $inc = 1000;
1015 my ($min, $max) = ($base, $head < $base+$inc ? $head : $base+$inc);
1016 my $eh = $SVN::Error::handler;
1017 $SVN::Error::handler = \&libsvn_skip_unknown_revs;
1018 while (1) {
1019 my $pool = SVN::Pool->new;
1020 libsvn_get_log(libsvn_dup_ra($SVN), [$path],
1021 $min, $max, 0, 2, 1,
1022 sub {
1023 libsvn_graft_file_copies($grafts, $tree_paths,
1024 $path, @_);
1025 }, $pool);
1026 $pool->clear;
1027 last if ($max >= $head);
1028 $min = $max + 1;
1029 $max += $inc;
1030 $max = $head if ($max > $head);
1031 }
1032 $SVN::Error::handler = $eh;
1033}
1034sub process_merge_msg_matches {
1036 my ($grafts, $l_map, $u, $p, $c, @matches) = @_;
1037 my (@strong, @weak);
1038 foreach (@matches) {
1039 # merging with ourselves is not interesting
1040 next if $_ eq $p;
1041 if ($l_map->{$u}->{$_}) {
1042 push @strong, $_;
1043 } else {
1044 push @weak, $_;
1045 }
1046 }
1047 foreach my $w (@weak) {
1048 last if @strong;
1049 # no exact match, use branch name as regexp.
1050 my $re = qr/\Q$w\E/i;
1051 foreach (keys %{$l_map->{$u}}) {
1052 if (/$re/) {
1053 push @strong, $l_map->{$u}->{$_};
1054 last;
1055 }
1056 }
1057 last if @strong;
1058 $w = basename($w);
1059 $re = qr/\Q$w\E/i;
1060 foreach (keys %{$l_map->{$u}}) {
1061 if (/$re/) {
1062 push @strong, $l_map->{$u}->{$_};
1063 last;
1064 }
1065 }
1066 }
1067 my ($rev) = ($c->{m} =~ /^git-svn-id:\s(?:\S+?)\@(\d+)
1068 \s(?:[a-f\d\-]+)$/xsm);
1069 unless (defined $rev) {
1070 ($rev) = ($c->{m} =~/^git-svn-id:\s(\d+)
1071 \@(?:[a-f\d\-]+)/xsm);
1072 return unless defined $rev;
1073 }
1074 foreach my $m (@strong) {
1075 my ($r0, $s0) = find_rev_before($rev, $m, 1);
1076 $grafts->{$c->{c}}->{$s0} = 1 if defined $s0;
1077 }
1078}
1079sub graft_merge_msg {
1081 my ($grafts, $l_map, $u, $p, @re) = @_;
1082 my $x = $l_map->{$u}->{$p};
1084 my $rl = rev_list_raw($x);
1085 while (my $c = next_rev_list_entry($rl)) {
1086 foreach my $re (@re) {
1087 my (@br) = ($c->{m} =~ /$re/g);
1088 next unless @br;
1089 process_merge_msg_matches($grafts,$l_map,$u,$p,$c,@br);
1090 }
1091 }
1092}
1093sub read_uuid {
1095 return if $SVN_UUID;
1096 my $pool = SVN::Pool->new;
1097 $SVN_UUID = $SVN->get_uuid($pool);
1098 $pool->clear;
1099}
1100sub verify_ref {
1102 my ($ref) = @_;
1103 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1104 { STDERR => 0 }); };
1105}
1106sub repo_path_split {
1108 my $full_url = shift;
1109 $full_url =~ s#/+$##;
1110 foreach (@repo_path_split_cache) {
1112 if ($full_url =~ s#$_##) {
1113 my $u = $1;
1114 $full_url =~ s#^/+##;
1115 return ($u, $full_url);
1116 }
1117 }
1118 my $tmp = libsvn_connect($full_url);
1119 return ($tmp->{repos_root}, $tmp->{svn_path});
1120}
1121sub setup_git_svn {
1123 defined $SVN_URL or croak "SVN repository location required\n";
1124 unless (-d $GIT_DIR) {
1125 croak "GIT_DIR=$GIT_DIR does not exist!\n";
1126 }
1127 mkpath([$GIT_SVN_DIR]);
1128 mkpath(["$GIT_SVN_DIR/info"]);
1129 open my $fh, '>>',$REVDB or croak $!;
1130 close $fh;
1131 s_to_file($SVN_URL,"$GIT_SVN_DIR/info/url");
1132}
1134sub get_tree_from_treeish {
1136 my ($treeish) = @_;
1137 croak "Not a sha1: $treeish\n" unless $treeish =~ /^$sha1$/o;
1138 my $type = command_oneline(qw/cat-file -t/, $treeish);
1139 my $expected;
1140 while ($type eq 'tag') {
1141 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1142 }
1143 if ($type eq 'commit') {
1144 $expected = (grep /^tree /, command(qw/cat-file commit/,
1145 $treeish))[0];
1146 ($expected) = ($expected =~ /^tree ($sha1)$/);
1147 die "Unable to get tree from $treeish\n" unless $expected;
1148 } elsif ($type eq 'tree') {
1149 $expected = $treeish;
1150 } else {
1151 die "$treeish is a $type, expected tree, tag or commit\n";
1152 }
1153 return $expected;
1154}
1155sub get_diff {
1157 my ($from, $treeish) = @_;
1158 print "diff-tree $from $treeish\n";
1159 my @diff_tree = qw(diff-tree -z -r);
1160 if ($_cp_similarity) {
1161 push @diff_tree, "-C$_cp_similarity";
1162 } else {
1163 push @diff_tree, '-C';
1164 }
1165 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
1166 push @diff_tree, "-l$_l" if defined $_l;
1167 push @diff_tree, $from, $treeish;
1168 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
1169 local $/ = "\0";
1170 my $state = 'meta';
1171 my @mods;
1172 while (<$diff_fh>) {
1173 chomp $_; # this gets rid of the trailing "\0"
1174 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
1175 $sha1\s($sha1)\s([MTCRAD])\d*$/xo) {
1176 push @mods, { mode_a => $1, mode_b => $2,
1177 sha1_b => $3, chg => $4 };
1178 if ($4 =~ /^(?:C|R)$/) {
1179 $state = 'file_a';
1180 } else {
1181 $state = 'file_b';
1182 }
1183 } elsif ($state eq 'file_a') {
1184 my $x = $mods[$#mods] or croak "Empty array\n";
1185 if ($x->{chg} !~ /^(?:C|R)$/) {
1186 croak "Error parsing $_, $x->{chg}\n";
1187 }
1188 $x->{file_a} = $_;
1189 $state = 'file_b';
1190 } elsif ($state eq 'file_b') {
1191 my $x = $mods[$#mods] or croak "Empty array\n";
1192 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
1193 croak "Error parsing $_, $x->{chg}\n";
1194 }
1195 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
1196 croak "Error parsing $_, $x->{chg}\n";
1197 }
1198 $x->{file_b} = $_;
1199 $state = 'meta';
1200 } else {
1201 croak "Error parsing $_\n";
1202 }
1203 }
1204 command_close_pipe($diff_fh, $ctx);
1205 return \@mods;
1206}
1207sub libsvn_checkout_tree {
1209 my ($from, $treeish, $ed) = @_;
1210 my $mods = get_diff($from, $treeish);
1211 return $mods unless (scalar @$mods);
1212 my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
1213 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
1214 my $f = $m->{chg};
1215 if (defined $o{$f}) {
1216 $ed->$f($m, $_q);
1217 } else {
1218 croak "Invalid change type: $f\n";
1219 }
1220 }
1221 $ed->rmdirs($_q) if $_rmdir;
1222 return $mods;
1223}
1224sub get_commit_message {
1226 my ($commit, $commit_msg) = (@_);
1227 my %log_msg = ( msg => '' );
1228 open my $msg, '>', $commit_msg or croak $!;
1229 my $type = command_oneline(qw/cat-file -t/, $commit);
1231 if ($type eq 'commit' || $type eq 'tag') {
1232 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1233 $type, $commit);
1234 my $in_msg = 0;
1235 while (<$msg_fh>) {
1236 if (!$in_msg) {
1237 $in_msg = 1 if (/^\s*$/);
1238 } elsif (/^git-svn-id: /) {
1239 # skip this, we regenerate the correct one
1240 # on re-fetch anyways
1241 } else {
1242 print $msg $_ or croak $!;
1243 }
1244 }
1245 command_close_pipe($msg_fh, $ctx);
1246 }
1247 close $msg or croak $!;
1248 if ($_edit || ($type eq 'tree')) {
1250 my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi';
1251 system($editor, $commit_msg);
1252 }
1253 # file_to_s removes all trailing newlines, so just use chomp() here:
1255 open $msg, '<', $commit_msg or croak $!;
1256 { local $/; chomp($log_msg{msg} = <$msg>); }
1257 close $msg or croak $!;
1258 return \%log_msg;
1260}
1261sub set_svn_commit_env {
1263 if (defined $LC_ALL) {
1264 $ENV{LC_ALL} = $LC_ALL;
1265 } else {
1266 delete $ENV{LC_ALL};
1267 }
1268}
1269sub rev_list_raw {
1271 my ($fh, $c) = command_output_pipe(qw/rev-list --pretty=raw/, @_);
1272 return { fh => $fh, ctx => $c, t => { } };
1273}
1274sub next_rev_list_entry {
1276 my $rl = shift;
1277 my $fh = $rl->{fh};
1278 my $x = $rl->{t};
1279 while (<$fh>) {
1280 if (/^commit ($sha1)$/o) {
1281 if ($x->{c}) {
1282 $rl->{t} = { c => $1 };
1283 return $x;
1284 } else {
1285 $x->{c} = $1;
1286 }
1287 } elsif (/^parent ($sha1)$/o) {
1288 $x->{p}->{$1} = 1;
1289 } elsif (s/^ //) {
1290 $x->{m} ||= '';
1291 $x->{m} .= $_;
1292 }
1293 }
1294 command_close_pipe($fh, $rl->{ctx});
1295 return ($x != $rl->{t}) ? $x : undef;
1296}
1297sub s_to_file {
1299 my ($str, $file, $mode) = @_;
1300 open my $fd,'>',$file or croak $!;
1301 print $fd $str,"\n" or croak $!;
1302 close $fd or croak $!;
1303 chmod ($mode &~ umask, $file) if (defined $mode);
1304}
1305sub file_to_s {
1307 my $file = shift;
1308 open my $fd,'<',$file or croak "$!: file: $file\n";
1309 local $/;
1310 my $ret = <$fd>;
1311 close $fd or croak $!;
1312 $ret =~ s/\s*$//s;
1313 return $ret;
1314}
1315sub assert_revision_unknown {
1317 my $r = shift;
1318 if (my $c = revdb_get($REVDB, $r)) {
1319 croak "$r = $c already exists! Why are we refetching it?";
1320 }
1321}
1322sub git_commit {
1324 my ($log_msg, @parents) = @_;
1325 assert_revision_unknown($log_msg->{revision});
1326 map_tree_joins() if (@_branch_from && !%tree_map);
1327 my (@tmp_parents, @exec_parents, %seen_parent);
1329 if (my $lparents = $log_msg->{parents}) {
1330 @tmp_parents = @$lparents
1331 }
1332 # commit parents can be conditionally bound to a particular
1333 # svn revision via: "svn_revno=commit_sha1", filter them out here:
1334 foreach my $p (@parents) {
1335 next unless defined $p;
1336 if ($p =~ /^(\d+)=($sha1_short)$/o) {
1337 if ($1 == $log_msg->{revision}) {
1338 push @tmp_parents, $2;
1339 }
1340 } else {
1341 push @tmp_parents, $p if $p =~ /$sha1_short/o;
1342 }
1343 }
1344 my $tree = $log_msg->{tree};
1345 if (!defined $tree) {
1346 my $index = set_index($GIT_SVN_INDEX);
1347 $tree = command_oneline('write-tree');
1348 croak $? if $?;
1349 restore_index($index);
1350 }
1351 # just in case we clobber the existing ref, we still want that ref
1352 # as our parent:
1353 if (my $cur = verify_ref("refs/remotes/$GIT_SVN^0")) {
1354 chomp $cur;
1355 push @tmp_parents, $cur;
1356 }
1357 if (exists $tree_map{$tree}) {
1359 foreach my $p (@{$tree_map{$tree}}) {
1360 my $skip;
1361 foreach (@tmp_parents) {
1362 # see if a common parent is found
1363 my $mb = eval { command('merge-base', $_, $p) };
1364 next if ($@ || $?);
1365 $skip = 1;
1366 last;
1367 }
1368 next if $skip;
1369 my ($url_p, $r_p, $uuid_p) = cmt_metadata($p);
1370 next if (($SVN_UUID eq $uuid_p) &&
1371 ($log_msg->{revision} > $r_p));
1372 next if (defined $url_p && defined $SVN_URL &&
1373 ($SVN_UUID eq $uuid_p) &&
1374 ($url_p eq $SVN_URL));
1375 push @tmp_parents, $p;
1376 }
1377 }
1378 foreach (@tmp_parents) {
1379 next if $seen_parent{$_};
1380 $seen_parent{$_} = 1;
1381 push @exec_parents, $_;
1382 # MAXPARENT is defined to 16 in commit-tree.c:
1383 last if @exec_parents > 16;
1384 }
1385 set_commit_env($log_msg);
1387 my @exec = ('git-commit-tree', $tree);
1388 push @exec, '-p', $_ foreach @exec_parents;
1389 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1390 or croak $!;
1391 print $msg_fh $log_msg->{msg} or croak $!;
1392 unless ($_no_metadata) {
1393 print $msg_fh "\ngit-svn-id: $SVN_URL\@$log_msg->{revision}",
1394 " $SVN_UUID\n" or croak $!;
1395 }
1396 $msg_fh->flush == 0 or croak $!;
1397 close $msg_fh or croak $!;
1398 chomp(my $commit = do { local $/; <$out_fh> });
1399 close $out_fh or croak $!;
1400 waitpid $pid, 0;
1401 croak $? if $?;
1402 if ($commit !~ /^$sha1$/o) {
1403 die "Failed to commit, invalid sha1: $commit\n";
1404 }
1405 command_noisy('update-ref',"refs/remotes/$GIT_SVN",$commit);
1406 revdb_set($REVDB, $log_msg->{revision}, $commit);
1407 # this output is read via pipe, do not change:
1409 print "r$log_msg->{revision} = $commit\n";
1410 check_repack();
1411 return $commit;
1412}
1413sub check_repack {
1415 if ($_repack && (--$_repack_nr == 0)) {
1416 $_repack_nr = $_repack;
1417 # repack doesn't use any arguments with spaces in them, does it?
1418 command_noisy('repack', split(/\s+/, $_repack_flags));
1419 }
1420}
1421sub set_commit_env {
1423 my ($log_msg) = @_;
1424 my $author = $log_msg->{author};
1425 if (!defined $author || length $author == 0) {
1426 $author = '(no author)';
1427 }
1428 my ($name,$email) = defined $users{$author} ? @{$users{$author}}
1429 : ($author,"$author\@$SVN_UUID");
1430 $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $name;
1431 $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} = $email;
1432 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_msg->{date};
1433}
1434sub check_upgrade_needed {
1436 if (!-r $REVDB) {
1437 -d $GIT_SVN_DIR or mkpath([$GIT_SVN_DIR]);
1438 open my $fh, '>>',$REVDB or croak $!;
1439 close $fh;
1440 }
1441 return unless eval {
1442 command([qw/rev-parse --verify/,"$GIT_SVN-HEAD^0"],
1443 {STDERR => 0});
1444 };
1445 my $head = eval { command('rev-parse',"refs/remotes/$GIT_SVN") };
1446 if ($@ || !$head) {
1447 print STDERR "Please run: $0 rebuild --upgrade\n";
1448 exit 1;
1449 }
1450}
1451# fills %tree_map with a reverse mapping of trees to commits. Useful
1453# for finding parents to commit on.
1454sub map_tree_joins {
1455 my %seen;
1456 foreach my $br (@_branch_from) {
1457 my $pipe = command_output_pipe(qw/rev-list
1458 --topo-order --pretty=raw/, $br);
1459 while (<$pipe>) {
1460 if (/^commit ($sha1)$/o) {
1461 my $commit = $1;
1462 # if we've seen a commit,
1464 # we've seen its parents
1465 last if $seen{$commit};
1466 my ($tree) = (<$pipe> =~ /^tree ($sha1)$/o);
1467 unless (defined $tree) {
1468 die "Failed to parse commit $commit\n";
1469 }
1470 push @{$tree_map{$tree}}, $commit;
1471 $seen{$commit} = 1;
1472 }
1473 }
1474 eval { command_close_pipe($pipe) };
1475 }
1476}
1477sub load_all_refs {
1479 if (@_branch_from) {
1480 print STDERR '--branch|-b parameters are ignored when ',
1481 "--branch-all-refs|-B is passed\n";
1482 }
1483 # don't worry about rev-list on non-commit objects/tags,
1485 # it shouldn't blow up if a ref is a blob or tree...
1486 @_branch_from = command(qw/rev-parse --symbolic --all/);
1487}
1488# '<svn username> = real-name <email address>' mapping based on git-svnimport:
1490sub load_authors {
1491 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1492 while (<$authors>) {
1493 chomp;
1494 next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1495 my ($user, $name, $email) = ($1, $2, $3);
1496 $users{$user} = [$name, $email];
1497 }
1498 close $authors or croak $!;
1499}
1500sub rload_authors {
1502 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1503 while (<$authors>) {
1504 chomp;
1505 next unless /^(\S+?)\s*=\s*(.+?)\s*<(.+)>\s*$/;
1506 my ($user, $name, $email) = ($1, $2, $3);
1507 $rusers{"$name <$email>"} = $user;
1508 }
1509 close $authors or croak $!;
1510}
1511sub git_svn_each {
1513 my $sub = shift;
1514 foreach (command(qw/rev-parse --symbolic --all/)) {
1515 next unless s#^refs/remotes/##;
1516 chomp $_;
1517 next unless -f "$GIT_DIR/svn/$_/info/url";
1518 &$sub($_);
1519 }
1520}
1521sub migrate_revdb {
1523 git_svn_each(sub {
1524 my $id = shift;
1525 defined(my $pid = fork) or croak $!;
1526 if (!$pid) {
1527 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
1528 init_vars();
1529 exit 0 if -r $REVDB;
1530 print "Upgrading svn => git mapping...\n";
1531 -d $GIT_SVN_DIR or mkpath([$GIT_SVN_DIR]);
1532 open my $fh, '>>',$REVDB or croak $!;
1533 close $fh;
1534 rebuild();
1535 print "Done upgrading. You may now delete the ",
1536 "deprecated $GIT_SVN_DIR/revs directory\n";
1537 exit 0;
1538 }
1539 waitpid $pid, 0;
1540 croak $? if $?;
1541 });
1542}
1543sub migration_check {
1545 migrate_revdb() unless (-e $REVDB);
1546 return if (-d "$GIT_DIR/svn" || !-d $GIT_DIR);
1547 print "Upgrading repository...\n";
1548 unless (-d "$GIT_DIR/svn") {
1549 mkdir "$GIT_DIR/svn" or croak $!;
1550 }
1551 print "Data from a previous version of git-svn exists, but\n\t",
1552 "$GIT_SVN_DIR\n\t(required for this version ",
1553 "($VERSION) of git-svn) does not.\n";
1554 foreach my $x (command(qw/rev-parse --symbolic --all/)) {
1556 next unless $x =~ s#^refs/remotes/##;
1557 chomp $x;
1558 next unless -f "$GIT_DIR/$x/info/url";
1559 my $u = eval { file_to_s("$GIT_DIR/$x/info/url") };
1560 next unless $u;
1561 my $dn = dirname("$GIT_DIR/svn/$x");
1562 mkpath([$dn]) unless -d $dn;
1563 rename "$GIT_DIR/$x", "$GIT_DIR/svn/$x" or croak "$!: $x";
1564 }
1565 migrate_revdb() if (-d $GIT_SVN_DIR && !-w $REVDB);
1566 print "Done upgrading.\n";
1567}
1568sub find_rev_before {
1570 my ($r, $id, $eq_ok) = @_;
1571 my $f = "$GIT_DIR/svn/$id/.rev_db";
1572 return (undef,undef) unless -r $f;
1573 --$r unless $eq_ok;
1574 while ($r > 0) {
1575 if (my $c = revdb_get($f, $r)) {
1576 return ($r, $c);
1577 }
1578 --$r;
1579 }
1580 return (undef, undef);
1581}
1582sub init_vars {
1584 $GIT_SVN ||= $ENV{GIT_SVN_ID} || 'git-svn';
1585 $GIT_SVN_DIR = "$GIT_DIR/svn/$GIT_SVN";
1586 $REVDB = "$GIT_SVN_DIR/.rev_db";
1587 $GIT_SVN_INDEX = "$GIT_SVN_DIR/index";
1588 $SVN_URL = undef;
1589 $SVN_WC = "$GIT_SVN_DIR/tree";
1590 %tree_map = ();
1591}
1592# convert GetOpt::Long specs for use by git-repo-config
1594sub read_repo_config {
1595 return unless -d $GIT_DIR;
1596 my $opts = shift;
1597 foreach my $o (keys %$opts) {
1598 my $v = $opts->{$o};
1599 my ($key) = ($o =~ /^([a-z\-]+)/);
1600 $key =~ s/-//g;
1601 my $arg = 'git-repo-config';
1602 $arg .= ' --int' if ($o =~ /[:=]i$/);
1603 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1604 if (ref $v eq 'ARRAY') {
1605 chomp(my @tmp = `$arg --get-all svn.$key`);
1606 @$v = @tmp if @tmp;
1607 } else {
1608 chomp(my $tmp = `$arg --get svn.$key`);
1609 if ($tmp && !($arg =~ / --bool / && $tmp eq 'false')) {
1610 $$v = $tmp;
1611 }
1612 }
1613 }
1614}
1615sub set_default_vals {
1617 if (defined $_repack) {
1618 $_repack = 1000 if ($_repack <= 0);
1619 $_repack_nr = $_repack;
1620 $_repack_flags ||= '-d';
1621 }
1622}
1623sub read_grafts {
1625 my $gr_file = shift;
1626 my ($grafts, $comments) = ({}, {});
1627 if (open my $fh, '<', $gr_file) {
1628 my @tmp;
1629 while (<$fh>) {
1630 if (/^($sha1)\s+/) {
1631 my $c = $1;
1632 if (@tmp) {
1633 @{$comments->{$c}} = @tmp;
1634 @tmp = ();
1635 }
1636 foreach my $p (split /\s+/, $_) {
1637 $grafts->{$c}->{$p} = 1;
1638 }
1639 } else {
1640 push @tmp, $_;
1641 }
1642 }
1643 close $fh or croak $!;
1644 @{$comments->{'END'}} = @tmp if @tmp;
1645 }
1646 return ($grafts, $comments);
1647}
1648sub write_grafts {
1650 my ($grafts, $comments, $gr_file) = @_;
1651 open my $fh, '>', $gr_file or croak $!;
1653 foreach my $c (sort keys %$grafts) {
1654 if ($comments->{$c}) {
1655 print $fh $_ foreach @{$comments->{$c}};
1656 }
1657 my $p = $grafts->{$c};
1658 my %x; # real parents
1659 delete $p->{$c}; # commits are not self-reproducing...
1660 my $ch = command_output_pipe(qw/cat-file commit/, $c);
1661 while (<$ch>) {
1662 if (/^parent ($sha1)/) {
1663 $x{$1} = $p->{$1} = 1;
1664 } else {
1665 last unless /^\S/;
1666 }
1667 }
1668 eval { command_close_pipe($ch) }; # breaking the pipe
1669 # if real parents are the only ones in the grafts, drop it
1671 next if join(' ',sort keys %$p) eq join(' ',sort keys %x);
1672 my (@ip, @jp, $mb);
1674 my %del = %x;
1675 @ip = @jp = keys %$p;
1676 foreach my $i (@ip) {
1677 next if $del{$i} || $p->{$i} == 2;
1678 foreach my $j (@jp) {
1679 next if $i eq $j || $del{$j} || $p->{$j} == 2;
1680 $mb = eval { command('merge-base', $i, $j) };
1681 next unless $mb;
1682 chomp $mb;
1683 next if $x{$mb};
1684 if ($mb eq $j) {
1685 delete $p->{$i};
1686 $del{$i} = 1;
1687 } elsif ($mb eq $i) {
1688 delete $p->{$j};
1689 $del{$j} = 1;
1690 }
1691 }
1692 }
1693 # if real parents are the only ones in the grafts, drop it
1695 next if join(' ',sort keys %$p) eq join(' ',sort keys %x);
1696 print $fh $c, ' ', join(' ', sort keys %$p),"\n";
1698 }
1699 if ($comments->{'END'}) {
1700 print $fh $_ foreach @{$comments->{'END'}};
1701 }
1702 close $fh or croak $!;
1703}
1704sub read_url_paths_all {
1706 my ($l_map, $pfx, $p) = @_;
1707 my @dir;
1708 foreach (<$p/*>) {
1709 if (-r "$_/info/url") {
1710 $pfx .= '/' if $pfx && $pfx !~ m!/$!;
1711 my $id = $pfx . basename $_;
1712 my $url = file_to_s("$_/info/url");
1713 my ($u, $p) = repo_path_split($url);
1714 $l_map->{$u}->{$p} = $id;
1715 } elsif (-d $_) {
1716 push @dir, $_;
1717 }
1718 }
1719 foreach (@dir) {
1720 my $x = $_;
1721 $x =~ s!^\Q$GIT_DIR\E/svn/!!o;
1722 read_url_paths_all($l_map, $x, $_);
1723 }
1724}
1725# this one only gets ids that have been imported, not new ones
1727sub read_url_paths {
1728 my $l_map = {};
1729 git_svn_each(sub { my $x = shift;
1730 my $url = file_to_s("$GIT_DIR/svn/$x/info/url");
1731 my ($u, $p) = repo_path_split($url);
1732 $l_map->{$u}->{$p} = $x;
1733 });
1734 return $l_map;
1735}
1736sub extract_metadata {
1738 my $id = shift or return (undef, undef, undef);
1739 my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\S+?)\@(\d+)
1740 \s([a-f\d\-]+)$/x);
1741 if (!defined $rev || !$uuid || !$url) {
1742 # some of the original repositories I made had
1743 # identifiers like this:
1744 ($rev, $uuid) = ($id =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
1745 }
1746 return ($url, $rev, $uuid);
1747}
1748sub cmt_metadata {
1750 return extract_metadata((grep(/^git-svn-id: /,
1751 command(qw/cat-file commit/, shift)))[-1]);
1752}
1753sub get_commit_time {
1755 my $cmt = shift;
1756 my $fh = command_output_pipe(qw/rev-list --pretty=raw -n1/, $cmt);
1757 while (<$fh>) {
1758 /^committer\s(?:.+) (\d+) ([\-\+]?\d+)$/ or next;
1759 my ($s, $tz) = ($1, $2);
1760 if ($tz =~ s/^\+//) {
1761 $s += tz_to_s_offset($tz);
1762 } elsif ($tz =~ s/^\-//) {
1763 $s -= tz_to_s_offset($tz);
1764 }
1765 eval { command_close_pipe($fh) };
1766 return $s;
1767 }
1768 die "Can't get commit time for commit: $cmt\n";
1769}
1770sub tz_to_s_offset {
1772 my ($tz) = @_;
1773 $tz =~ s/(\d\d)$//;
1774 return ($1 * 60) + ($tz * 3600);
1775}
1776# adapted from pager.c
1778sub config_pager {
1779 $_pager ||= $ENV{GIT_PAGER} || $ENV{PAGER};
1780 if (!defined $_pager) {
1781 $_pager = 'less';
1782 } elsif (length $_pager == 0 || $_pager eq 'cat') {
1783 $_pager = undef;
1784 }
1785}
1786sub run_pager {
1788 return unless -t *STDOUT;
1789 pipe my $rfd, my $wfd or return;
1790 defined(my $pid = fork) or croak $!;
1791 if (!$pid) {
1792 open STDOUT, '>&', $wfd or croak $!;
1793 return;
1794 }
1795 open STDIN, '<&', $rfd or croak $!;
1796 $ENV{LESS} ||= 'FRSX';
1797 exec $_pager or croak "Can't run pager: $! ($_pager)\n";
1798}
1799sub get_author_info {
1801 my ($dest, $author, $t, $tz) = @_;
1802 $author =~ s/(?:^\s*|\s*$)//g;
1803 $dest->{a_raw} = $author;
1804 my $_a;
1805 if ($_authors) {
1806 $_a = $rusers{$author} || undef;
1807 }
1808 if (!$_a) {
1809 ($_a) = ($author =~ /<([^>]+)\@[^>]+>$/);
1810 }
1811 $dest->{t} = $t;
1812 $dest->{tz} = $tz;
1813 $dest->{a} = $_a;
1814 # Date::Parse isn't in the standard Perl distro :(
1815 if ($tz =~ s/^\+//) {
1816 $t += tz_to_s_offset($tz);
1817 } elsif ($tz =~ s/^\-//) {
1818 $t -= tz_to_s_offset($tz);
1819 }
1820 $dest->{t_utc} = $t;
1821}
1822sub process_commit {
1824 my ($c, $r_min, $r_max, $defer) = @_;
1825 if (defined $r_min && defined $r_max) {
1826 if ($r_min == $c->{r} && $r_min == $r_max) {
1827 show_commit($c);
1828 return 0;
1829 }
1830 return 1 if $r_min == $r_max;
1831 if ($r_min < $r_max) {
1832 # we need to reverse the print order
1833 return 0 if (defined $_limit && --$_limit < 0);
1834 push @$defer, $c;
1835 return 1;
1836 }
1837 if ($r_min != $r_max) {
1838 return 1 if ($r_min < $c->{r});
1839 return 1 if ($r_max > $c->{r});
1840 }
1841 }
1842 return 0 if (defined $_limit && --$_limit < 0);
1843 show_commit($c);
1844 return 1;
1845}
1846sub show_commit {
1848 my $c = shift;
1849 if ($_oneline) {
1850 my $x = "\n";
1851 if (my $l = $c->{l}) {
1852 while ($l->[0] =~ /^\s*$/) { shift @$l }
1853 $x = $l->[0];
1854 }
1855 $_l_fmt ||= 'A' . length($c->{r});
1856 print 'r',pack($_l_fmt, $c->{r}),' | ';
1857 print "$c->{c} | " if $_show_commit;
1858 print $x;
1859 } else {
1860 show_commit_normal($c);
1861 }
1862}
1863sub show_commit_changed_paths {
1865 my ($c) = @_;
1866 return unless $c->{changed};
1867 print "Changed paths:\n", @{$c->{changed}};
1868}
1869sub show_commit_normal {
1871 my ($c) = @_;
1872 print '-' x72, "\nr$c->{r} | ";
1873 print "$c->{c} | " if $_show_commit;
1874 print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)",
1875 localtime($c->{t_utc})), ' | ';
1876 my $nr_line = 0;
1877 if (my $l = $c->{l}) {
1879 while ($l->[$#$l] eq "\n" && $#$l > 0
1880 && $l->[($#$l - 1)] eq "\n") {
1881 pop @$l;
1882 }
1883 $nr_line = scalar @$l;
1884 if (!$nr_line) {
1885 print "1 line\n\n\n";
1886 } else {
1887 if ($nr_line == 1) {
1888 $nr_line = '1 line';
1889 } else {
1890 $nr_line .= ' lines';
1891 }
1892 print $nr_line, "\n";
1893 show_commit_changed_paths($c);
1894 print "\n";
1895 print $_ foreach @$l;
1896 }
1897 } else {
1898 print "1 line\n";
1899 show_commit_changed_paths($c);
1900 print "\n";
1901 }
1903 foreach my $x (qw/raw diff/) {
1904 if ($c->{$x}) {
1905 print "\n";
1906 print $_ foreach @{$c->{$x}}
1907 }
1908 }
1909}
1910sub _simple_prompt {
1912 my ($cred, $realm, $default_username, $may_save, $pool) = @_;
1913 $may_save = undef if $_no_auth_cache;
1914 $default_username = $_username if defined $_username;
1915 if (defined $default_username && length $default_username) {
1916 if (defined $realm && length $realm) {
1917 print "Authentication realm: $realm\n";
1918 }
1919 $cred->username($default_username);
1920 } else {
1921 _username_prompt($cred, $realm, $may_save, $pool);
1922 }
1923 $cred->password(_read_password("Password for '" .
1924 $cred->username . "': ", $realm));
1925 $cred->may_save($may_save);
1926 $SVN::_Core::SVN_NO_ERROR;
1927}
1928sub _ssl_server_trust_prompt {
1930 my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
1931 $may_save = undef if $_no_auth_cache;
1932 print "Error validating server certificate for '$realm':\n";
1933 if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
1934 print " - The certificate is not issued by a trusted ",
1935 "authority. Use the\n",
1936 " fingerprint to validate the certificate manually!\n";
1937 }
1938 if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
1939 print " - The certificate hostname does not match.\n";
1940 }
1941 if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
1942 print " - The certificate is not yet valid.\n";
1943 }
1944 if ($failures & $SVN::Auth::SSL::EXPIRED) {
1945 print " - The certificate has expired.\n";
1946 }
1947 if ($failures & $SVN::Auth::SSL::OTHER) {
1948 print " - The certificate has an unknown error.\n";
1949 }
1950 printf( "Certificate information:\n".
1951 " - Hostname: %s\n".
1952 " - Valid: from %s until %s\n".
1953 " - Issuer: %s\n".
1954 " - Fingerprint: %s\n",
1955 map $cert_info->$_, qw(hostname valid_from valid_until
1956 issuer_dname fingerprint) );
1957 my $choice;
1958prompt:
1959 print $may_save ?
1960 "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
1961 "(R)eject or accept (t)emporarily? ";
1962 $choice = lc(substr(<STDIN> || 'R', 0, 1));
1963 if ($choice =~ /^t$/i) {
1964 $cred->may_save(undef);
1965 } elsif ($choice =~ /^r$/i) {
1966 return -1;
1967 } elsif ($may_save && $choice =~ /^p$/i) {
1968 $cred->may_save($may_save);
1969 } else {
1970 goto prompt;
1971 }
1972 $cred->accepted_failures($failures);
1973 $SVN::_Core::SVN_NO_ERROR;
1974}
1975sub _ssl_client_cert_prompt {
1977 my ($cred, $realm, $may_save, $pool) = @_;
1978 $may_save = undef if $_no_auth_cache;
1979 print "Client certificate filename: ";
1980 chomp(my $filename = <STDIN>);
1981 $cred->cert_file($filename);
1982 $cred->may_save($may_save);
1983 $SVN::_Core::SVN_NO_ERROR;
1984}
1985sub _ssl_client_cert_pw_prompt {
1987 my ($cred, $realm, $may_save, $pool) = @_;
1988 $may_save = undef if $_no_auth_cache;
1989 $cred->password(_read_password("Password: ", $realm));
1990 $cred->may_save($may_save);
1991 $SVN::_Core::SVN_NO_ERROR;
1992}
1993sub _username_prompt {
1995 my ($cred, $realm, $may_save, $pool) = @_;
1996 $may_save = undef if $_no_auth_cache;
1997 if (defined $realm && length $realm) {
1998 print "Authentication realm: $realm\n";
1999 }
2000 my $username;
2001 if (defined $_username) {
2002 $username = $_username;
2003 } else {
2004 print "Username: ";
2005 chomp($username = <STDIN>);
2006 }
2007 $cred->username($username);
2008 $cred->may_save($may_save);
2009 $SVN::_Core::SVN_NO_ERROR;
2010}
2011sub _read_password {
2013 my ($prompt, $realm) = @_;
2014 print $prompt;
2015 require Term::ReadKey;
2016 Term::ReadKey::ReadMode('noecho');
2017 my $password = '';
2018 while (defined(my $key = Term::ReadKey::ReadKey(0))) {
2019 last if $key =~ /[\012\015]/; # \n\r
2020 $password .= $key;
2021 }
2022 Term::ReadKey::ReadMode('restore');
2023 print "\n";
2024 $password;
2025}
2026sub libsvn_connect {
2028 my ($url) = @_;
2029 SVN::_Core::svn_config_ensure($_config_dir, undef);
2030 my ($baton, $callbacks) = SVN::Core::auth_open_helper([
2031 SVN::Client::get_simple_provider(),
2032 SVN::Client::get_ssl_server_trust_file_provider(),
2033 SVN::Client::get_simple_prompt_provider(
2034 \&_simple_prompt, 2),
2035 SVN::Client::get_ssl_client_cert_prompt_provider(
2036 \&_ssl_client_cert_prompt, 2),
2037 SVN::Client::get_ssl_client_cert_pw_prompt_provider(
2038 \&_ssl_client_cert_pw_prompt, 2),
2039 SVN::Client::get_username_provider(),
2040 SVN::Client::get_ssl_server_trust_prompt_provider(
2041 \&_ssl_server_trust_prompt),
2042 SVN::Client::get_username_prompt_provider(
2043 \&_username_prompt, 2),
2044 ]);
2045 my $config = SVN::Core::config_get_config($_config_dir);
2046 my $ra = SVN::Ra->new(url => $url, auth => $baton,
2047 config => $config,
2048 pool => SVN::Pool->new,
2049 auth_provider_callbacks => $callbacks);
2050 $ra->{svn_path} = $url;
2051 $ra->{repos_root} = $ra->get_repos_root;
2052 $ra->{svn_path} =~ s#^\Q$ra->{repos_root}\E/*##;
2053 push @repo_path_split_cache, qr/^(\Q$ra->{repos_root}\E)/;
2054 return $ra;
2055}
2056sub libsvn_can_do_switch {
2058 unless (defined $_svn_can_do_switch) {
2059 my $pool = SVN::Pool->new;
2060 my $rep = eval {
2061 $SVN->do_switch(1, '', 0, $SVN->{url},
2062 SVN::Delta::Editor->new, $pool);
2063 };
2064 if ($@) {
2065 $_svn_can_do_switch = 0;
2066 } else {
2067 $rep->abort_report($pool);
2068 $_svn_can_do_switch = 1;
2069 }
2070 $pool->clear;
2071 }
2072 $_svn_can_do_switch;
2073}
2074sub libsvn_dup_ra {
2076 my ($ra) = @_;
2077 SVN::Ra->new(map { $_ => $ra->{$_} } qw/config url
2078 auth auth_provider_callbacks repos_root svn_path/);
2079}
2080sub uri_encode {
2082 my ($f) = @_;
2083 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2084 $f
2085}
2086sub uri_decode {
2088 my ($f) = @_;
2089 $f =~ tr/+/ /;
2090 $f =~ s/%([A-F0-9]{2})/chr hex($1)/ge;
2091 $f
2092}
2093sub libsvn_log_entry {
2095 my ($rev, $author, $date, $msg, $parents, $untracked) = @_;
2096 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
2097 (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x)
2098 or die "Unable to parse date: $date\n";
2099 if (defined $author && length $author > 0 &&
2100 defined $_authors && ! defined $users{$author}) {
2101 die "Author: $author not defined in $_authors file\n";
2102 }
2103 $msg = '' if ($rev == 0 && !defined $msg);
2104 open my $un, '>>', "$GIT_SVN_DIR/unhandled.log" or croak $!;
2106 my $h;
2107 print $un "r$rev\n" or croak $!;
2108 $h = $untracked->{empty};
2109 foreach (sort keys %$h) {
2110 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
2111 print $un " $act: ", uri_encode($_), "\n" or croak $!;
2112 warn "W: $act: $_\n";
2113 }
2114 foreach my $t (qw/dir_prop file_prop/) {
2115 $h = $untracked->{$t} or next;
2116 foreach my $path (sort keys %$h) {
2117 my $ppath = $path eq '' ? '.' : $path;
2118 foreach my $prop (sort keys %{$h->{$path}}) {
2119 next if $SKIP{$prop};
2120 my $v = $h->{$path}->{$prop};
2121 if (defined $v) {
2122 print $un " +$t: ",
2123 uri_encode($ppath), ' ',
2124 uri_encode($prop), ' ',
2125 uri_encode($v), "\n"
2126 or croak $!;
2127 } else {
2128 print $un " -$t: ",
2129 uri_encode($ppath), ' ',
2130 uri_encode($prop), "\n"
2131 or croak $!;
2132 }
2133 }
2134 }
2135 }
2136 foreach my $t (qw/absent_file absent_directory/) {
2137 $h = $untracked->{$t} or next;
2138 foreach my $parent (sort keys %$h) {
2139 foreach my $path (sort @{$h->{$parent}}) {
2140 print $un " $t: ",
2141 uri_encode("$parent/$path"), "\n"
2142 or croak $!;
2143 warn "W: $t: $parent/$path ",
2144 "Insufficient permissions?\n";
2145 }
2146 }
2147 }
2148 # revprops (make this optional? it's an extra network trip...)
2150 my $pool = SVN::Pool->new;
2151 my $rp = $SVN->rev_proplist($rev, $pool);
2152 foreach (sort keys %$rp) {
2153 next if /^svn:(?:author|date|log)$/;
2154 print $un " rev_prop: ", uri_encode($_), ' ',
2155 uri_encode($rp->{$_}), "\n";
2156 }
2157 $pool->clear;
2158 close $un or croak $!;
2159 { revision => $rev, date => "+0000 $Y-$m-$d $H:$M:$S",
2161 author => $author, msg => $msg."\n", parents => $parents || [],
2162 revprops => $rp }
2163}
2164sub process_rm {
2166 my ($gui, $last_commit, $f, $q) = @_;
2167 # remove entire directories.
2168 if (command('ls-tree',$last_commit,'--',$f) =~ /^040000 tree/) {
2169 my ($ls, $ctx) = command_output_pipe(qw/ls-tree
2170 -r --name-only -z/,
2171 $last_commit,'--',$f);
2172 local $/ = "\0";
2173 while (<$ls>) {
2174 print $gui '0 ',0 x 40,"\t",$_ or croak $!;
2175 print "\tD\t$_\n" unless $q;
2176 }
2177 print "\tD\t$f/\n" unless $q;
2178 command_close_pipe($ls, $ctx);
2179 return $SVN::Node::dir;
2180 } else {
2181 print $gui '0 ',0 x 40,"\t",$f,"\0" or croak $!;
2182 print "\tD\t$f\n" unless $q;
2183 return $SVN::Node::file;
2184 }
2185}
2186sub libsvn_fetch {
2188 my ($last_commit, $paths, $rev, $author, $date, $msg) = @_;
2189 my $pool = SVN::Pool->new;
2190 my $ed = SVN::Git::Fetcher->new({ c => $last_commit, q => $_q });
2191 my $reporter = $SVN->do_update($rev, '', 1, $ed, $pool);
2192 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2193 my (undef, $last_rev, undef) = cmt_metadata($last_commit);
2194 $reporter->set_path('', $last_rev, 0, @lock, $pool);
2195 $reporter->finish_report($pool);
2196 $pool->clear;
2197 unless ($ed->{git_commit_ok}) {
2198 die "SVN connection failed somewhere...\n";
2199 }
2200 libsvn_log_entry($rev, $author, $date, $msg, [$last_commit], $ed);
2201}
2202sub svn_grab_base_rev {
2204 my $c = eval { command_oneline([qw/rev-parse --verify/,
2205 "refs/remotes/$GIT_SVN^0"],
2206 { STDERR => 0 }) };
2207 if (defined $c && length $c) {
2208 my ($url, $rev, $uuid) = cmt_metadata($c);
2209 return ($rev, $c) if defined $rev;
2210 }
2211 if ($_no_metadata) {
2212 my $offset = -41; # from tail
2213 my $rl;
2214 open my $fh, '<', $REVDB or
2215 die "--no-metadata specified and $REVDB not readable\n";
2216 seek $fh, $offset, 2;
2217 $rl = readline $fh;
2218 defined $rl or return (undef, undef);
2219 chomp $rl;
2220 while ($c ne $rl && tell $fh != 0) {
2221 $offset -= 41;
2222 seek $fh, $offset, 2;
2223 $rl = readline $fh;
2224 defined $rl or return (undef, undef);
2225 chomp $rl;
2226 }
2227 my $rev = tell $fh;
2228 croak $! if ($rev < -1);
2229 $rev = ($rev - 41) / 41;
2230 close $fh or croak $!;
2231 return ($rev, $c);
2232 }
2233 return (undef, undef);
2234}
2235sub libsvn_parse_revision {
2237 my $base = shift;
2238 my $head = $SVN->get_latest_revnum();
2239 if (!defined $_revision || $_revision eq 'BASE:HEAD') {
2240 return ($base + 1, $head) if (defined $base);
2241 return (0, $head);
2242 }
2243 return ($1, $2) if ($_revision =~ /^(\d+):(\d+)$/);
2244 return ($_revision, $_revision) if ($_revision =~ /^\d+$/);
2245 if ($_revision =~ /^BASE:(\d+)$/) {
2246 return ($base + 1, $1) if (defined $base);
2247 return (0, $head);
2248 }
2249 return ($1, $head) if ($_revision =~ /^(\d+):HEAD$/);
2250 die "revision argument: $_revision not understood by git-svn\n",
2251 "Try using the command-line svn client instead\n";
2252}
2253sub libsvn_traverse_ignore {
2255 my ($fh, $path, $r) = @_;
2256 $path =~ s#^/+##g;
2257 my $pool = SVN::Pool->new;
2258 my ($dirent, undef, $props) = $SVN->get_dir($path, $r, $pool);
2259 my $p = $path;
2260 $p =~ s#^\Q$SVN->{svn_path}\E/##;
2261 print $fh length $p ? "\n# $p\n" : "\n# /\n";
2262 if (my $s = $props->{'svn:ignore'}) {
2263 $s =~ s/[\r\n]+/\n/g;
2264 chomp $s;
2265 if (length $p == 0) {
2266 $s =~ s#\n#\n/$p#g;
2267 print $fh "/$s\n";
2268 } else {
2269 $s =~ s#\n#\n/$p/#g;
2270 print $fh "/$p/$s\n";
2271 }
2272 }
2273 foreach (sort keys %$dirent) {
2274 next if $dirent->{$_}->kind != $SVN::Node::dir;
2275 libsvn_traverse_ignore($fh, "$path/$_", $r);
2276 }
2277 $pool->clear;
2278}
2279sub revisions_eq {
2281 my ($path, $r0, $r1) = @_;
2282 return 1 if $r0 == $r1;
2283 my $nr = 0;
2284 # should be OK to use Pool here (r1 - r0) should be small
2285 my $pool = SVN::Pool->new;
2286 libsvn_get_log($SVN, [$path], $r0, $r1,
2287 0, 0, 1, sub {$nr++}, $pool);
2288 $pool->clear;
2289 return 0 if ($nr > 1);
2290 return 1;
2291}
2292sub libsvn_find_parent_branch {
2294 my ($paths, $rev, $author, $date, $msg) = @_;
2295 my $svn_path = '/'.$SVN->{svn_path};
2296 # look for a parent from another branch:
2298 my $i = $paths->{$svn_path} or return;
2299 my $branch_from = $i->copyfrom_path or return;
2300 my $r = $i->copyfrom_rev;
2301 print STDERR "Found possible branch point: ",
2302 "$branch_from => $svn_path, $r\n";
2303 $branch_from =~ s#^/##;
2304 my $l_map = {};
2305 read_url_paths_all($l_map, '', "$GIT_DIR/svn");
2306 my $url = $SVN->{repos_root};
2307 defined $l_map->{$url} or return;
2308 my $id = $l_map->{$url}->{$branch_from};
2309 if (!defined $id && $_follow_parent) {
2310 print STDERR "Following parent: $branch_from\@$r\n";
2311 # auto create a new branch and follow it
2312 $id = basename($branch_from);
2313 $id .= '@'.$r if -r "$GIT_DIR/svn/$id";
2314 while (-r "$GIT_DIR/svn/$id") {
2315 # just grow a tail if we're not unique enough :x
2316 $id .= '-';
2317 }
2318 }
2319 return unless defined $id;
2320 my ($r0, $parent) = find_rev_before($r,$id,1);
2322 if ($_follow_parent && (!defined $r0 || !defined $parent)) {
2323 defined(my $pid = fork) or croak $!;
2324 if (!$pid) {
2325 $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
2326 init_vars();
2327 $SVN_URL = "$url/$branch_from";
2328 $SVN = undef;
2329 setup_git_svn();
2330 # we can't assume SVN_URL exists at r+1:
2331 $_revision = "0:$r";
2332 fetch_lib();
2333 exit 0;
2334 }
2335 waitpid $pid, 0;
2336 croak $? if $?;
2337 ($r0, $parent) = find_rev_before($r,$id,1);
2338 }
2339 return unless (defined $r0 && defined $parent);
2340 if (revisions_eq($branch_from, $r0, $r)) {
2341 unlink $GIT_SVN_INDEX;
2342 print STDERR "Found branch parent: ($GIT_SVN) $parent\n";
2343 command_noisy('read-tree', $parent);
2344 unless (libsvn_can_do_switch()) {
2345 return _libsvn_new_tree($paths, $rev, $author, $date,
2346 $msg, [$parent]);
2347 }
2348 # do_switch works with svn/trunk >= r22312, but that is not
2349 # included with SVN 1.4.2 (the latest version at the moment),
2350 # so we can't rely on it.
2351 my $ra = libsvn_connect("$url/$branch_from");
2352 my $ed = SVN::Git::Fetcher->new({c => $parent, q => $_q });
2353 my $pool = SVN::Pool->new;
2354 my $reporter = $ra->do_switch($rev, '', 1, $SVN->{url},
2355 $ed, $pool);
2356 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2357 $reporter->set_path('', $r0, 0, @lock, $pool);
2358 $reporter->finish_report($pool);
2359 $pool->clear;
2360 unless ($ed->{git_commit_ok}) {
2361 die "SVN connection failed somewhere...\n";
2362 }
2363 return libsvn_log_entry($rev, $author, $date, $msg, [$parent]);
2364 }
2365 print STDERR "Nope, branch point not imported or unknown\n";
2366 return undef;
2367}
2368sub libsvn_get_log {
2370 my ($ra, @args) = @_;
2371 $args[4]-- if $args[4] && ! $_follow_parent;
2372 if ($SVN::Core::VERSION le '1.2.0') {
2373 splice(@args, 3, 1);
2374 }
2375 $ra->get_log(@args);
2376}
2377sub libsvn_new_tree {
2379 if (my $log_entry = libsvn_find_parent_branch(@_)) {
2380 return $log_entry;
2381 }
2382 my ($paths, $rev, $author, $date, $msg) = @_; # $pool is last
2383 _libsvn_new_tree($paths, $rev, $author, $date, $msg, []);
2384}
2385sub _libsvn_new_tree {
2387 my ($paths, $rev, $author, $date, $msg, $parents) = @_;
2388 my $pool = SVN::Pool->new;
2389 my $ed = SVN::Git::Fetcher->new({q => $_q});
2390 my $reporter = $SVN->do_update($rev, '', 1, $ed, $pool);
2391 my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : ();
2392 $reporter->set_path('', $rev, 1, @lock, $pool);
2393 $reporter->finish_report($pool);
2394 $pool->clear;
2395 unless ($ed->{git_commit_ok}) {
2396 die "SVN connection failed somewhere...\n";
2397 }
2398 libsvn_log_entry($rev, $author, $date, $msg, $parents, $ed);
2399}
2400sub find_graft_path_commit {
2402 my ($tree_paths, $p1, $r1) = @_;
2403 foreach my $x (keys %$tree_paths) {
2404 next unless ($p1 =~ /^\Q$x\E/);
2405 my $i = $tree_paths->{$x};
2406 my ($r0, $parent) = find_rev_before($r1,$i,1);
2407 return $parent if (defined $r0 && $r0 == $r1);
2408 print STDERR "r$r1 of $i not imported\n";
2409 next;
2410 }
2411 return undef;
2412}
2413sub find_graft_path_parents {
2415 my ($grafts, $tree_paths, $c, $p0, $r0) = @_;
2416 foreach my $x (keys %$tree_paths) {
2417 next unless ($p0 =~ /^\Q$x\E/);
2418 my $i = $tree_paths->{$x};
2419 my ($r, $parent) = find_rev_before($r0, $i, 1);
2420 if (defined $r && defined $parent && revisions_eq($x,$r,$r0)) {
2421 my ($url_b, undef, $uuid_b) = cmt_metadata($c);
2422 my ($url_a, undef, $uuid_a) = cmt_metadata($parent);
2423 next if ($url_a && $url_b && $url_a eq $url_b &&
2424 $uuid_b eq $uuid_a);
2425 $grafts->{$c}->{$parent} = 1;
2426 }
2427 }
2428}
2429sub libsvn_graft_file_copies {
2431 my ($grafts, $tree_paths, $path, $paths, $rev) = @_;
2432 foreach (keys %$paths) {
2433 my $i = $paths->{$_};
2434 my ($m, $p0, $r0) = ($i->action, $i->copyfrom_path,
2435 $i->copyfrom_rev);
2436 next unless (defined $p0 && defined $r0);
2437 my $p1 = $_;
2439 $p1 =~ s#^/##;
2440 $p0 =~ s#^/##;
2441 my $c = find_graft_path_commit($tree_paths, $p1, $rev);
2442 next unless $c;
2443 find_graft_path_parents($grafts, $tree_paths, $c, $p0, $r0);
2444 }
2445}
2446sub set_index {
2448 my $old = $ENV{GIT_INDEX_FILE};
2449 $ENV{GIT_INDEX_FILE} = shift;
2450 return $old;
2451}
2452sub restore_index {
2454 my ($old) = @_;
2455 if (defined $old) {
2456 $ENV{GIT_INDEX_FILE} = $old;
2457 } else {
2458 delete $ENV{GIT_INDEX_FILE};
2459 }
2460}
2461sub libsvn_commit_cb {
2463 my ($rev, $date, $committer, $c, $msg, $r_last, $cmt_last) = @_;
2464 if ($_optimize_commits && $rev == ($r_last + 1)) {
2465 my $log = libsvn_log_entry($rev,$committer,$date,$msg);
2466 $log->{tree} = get_tree_from_treeish($c);
2467 my $cmt = git_commit($log, $cmt_last, $c);
2468 my @diff = command('diff-tree', $cmt, $c);
2469 if (@diff) {
2470 print STDERR "Trees differ: $cmt $c\n",
2471 join('',@diff),"\n";
2472 exit 1;
2473 }
2474 } else {
2475 fetch("$rev=$c");
2476 }
2477}
2478sub libsvn_ls_fullurl {
2480 my $fullurl = shift;
2481 my $ra = libsvn_connect($fullurl);
2482 my @ret;
2483 my $pool = SVN::Pool->new;
2484 my $r = defined $_revision ? $_revision : $ra->get_latest_revnum;
2485 my ($dirent, undef, undef) = $ra->get_dir('', $r, $pool);
2486 foreach my $d (sort keys %$dirent) {
2487 if ($dirent->{$d}->kind == $SVN::Node::dir) {
2488 push @ret, "$d/"; # add '/' for compat with cli svn
2489 }
2490 }
2491 $pool->clear;
2492 return @ret;
2493}
2494sub libsvn_skip_unknown_revs {
2497 my $err = shift;
2498 my $errno = $err->apr_err();
2499 # Maybe the branch we're tracking didn't
2500 # exist when the repo started, so it's
2501 # not an error if it doesn't, just continue
2502 #
2503 # Wonderfully consistent library, eh?
2504 # 160013 - svn:// and file://
2505 # 175002 - http(s)://
2506 # 175007 - http(s):// (this repo required authorization, too...)
2507 # More codes may be discovered later...
2508 if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
2509 return;
2510 }
2511 croak "Error from SVN, ($errno): ", $err->expanded_message,"\n";
2512};
2513# Tie::File seems to be prone to offset errors if revisions get sparse,
2515# it's not that fast, either. Tie::File is also not in Perl 5.6. So
2516# one of my favorite modules is out :< Next up would be one of the DBM
2517# modules, but I'm not sure which is most portable... So I'll just
2518# go with something that's plain-text, but still capable of
2519# being randomly accessed. So here's my ultra-simple fixed-width
2520# database. All records are 40 characters + "\n", so it's easy to seek
2521# to a revision: (41 * rev) is the byte offset.
2522# A record of 40 0s denotes an empty revision.
2523# And yes, it's still pretty fast (faster than Tie::File).
2524sub revdb_set {
2525 my ($file, $rev, $commit) = @_;
2526 length $commit == 40 or croak "arg3 must be a full SHA1 hexsum\n";
2527 open my $fh, '+<', $file or croak $!;
2528 my $offset = $rev * 41;
2529 # assume that append is the common case:
2530 seek $fh, 0, 2 or croak $!;
2531 my $pos = tell $fh;
2532 if ($pos < $offset) {
2533 print $fh (('0' x 40),"\n") x (($offset - $pos) / 41);
2534 }
2535 seek $fh, $offset, 0 or croak $!;
2536 print $fh $commit,"\n";
2537 close $fh or croak $!;
2538}
2539sub revdb_get {
2541 my ($file, $rev) = @_;
2542 my $ret;
2543 my $offset = $rev * 41;
2544 open my $fh, '<', $file or croak $!;
2545 seek $fh, $offset, 0;
2546 if (tell $fh == $offset) {
2547 $ret = readline $fh;
2548 if (defined $ret) {
2549 chomp $ret;
2550 $ret = undef if ($ret =~ /^0{40}$/);
2551 }
2552 }
2553 close $fh or croak $!;
2554 return $ret;
2555}
2556sub copy_remote_ref {
2558 my $origin = $_cp_remote ? $_cp_remote : 'origin';
2559 my $ref = "refs/remotes/$GIT_SVN";
2560 if (command('ls-remote', $origin, $ref)) {
2561 command_noisy('fetch', $origin, "$ref:$ref");
2562 } elsif ($_cp_remote && !$_upgrade) {
2563 die "Unable to find remote reference: ",
2564 "refs/remotes/$GIT_SVN on $origin\n";
2565 }
2566}
2567{
2569 my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
2570 $SVN::Node::dir.$SVN::Node::unknown.
2571 $SVN::Node::none.$SVN::Node::file.
2572 $SVN::Node::dir.$SVN::Node::unknown.
2573 $SVN::Auth::SSL::CNMISMATCH.
2574 $SVN::Auth::SSL::NOTYETVALID.
2575 $SVN::Auth::SSL::EXPIRED.
2576 $SVN::Auth::SSL::UNKNOWNCA.
2577 $SVN::Auth::SSL::OTHER;
2578}
2579package SVN::Git::Fetcher;
2581use vars qw/@ISA/;
2582use strict;
2583use warnings;
2584use Carp qw/croak/;
2585use IO::File qw//;
2586use Git qw/command command_oneline command_noisy
2587 command_output_pipe command_input_pipe command_close_pipe/;
2588# file baton members: path, mode_a, mode_b, pool, fh, blob, base
2590sub new {
2591 my ($class, $git_svn) = @_;
2592 my $self = SVN::Delta::Editor->new;
2593 bless $self, $class;
2594 $self->{c} = $git_svn->{c} if exists $git_svn->{c};
2595 $self->{q} = $git_svn->{q};
2596 $self->{empty} = {};
2597 $self->{dir_prop} = {};
2598 $self->{file_prop} = {};
2599 $self->{absent_dir} = {};
2600 $self->{absent_file} = {};
2601 ($self->{gui}, $self->{ctx}) = command_input_pipe(
2602 qw/update-index -z --index-info/);
2603 require Digest::MD5;
2604 $self;
2605}
2606sub open_root {
2608 { path => '' };
2609}
2610sub open_directory {
2612 my ($self, $path, $pb, $rev) = @_;
2613 { path => $path };
2614}
2615sub delete_entry {
2617 my ($self, $path, $rev, $pb) = @_;
2618 my $t = process_rm($self->{gui}, $self->{c}, $path, $self->{q});
2619 $self->{empty}->{$path} = 0 if $t == $SVN::Node::dir;
2620 undef;
2621}
2622sub open_file {
2624 my ($self, $path, $pb, $rev) = @_;
2625 my ($mode, $blob) = (command('ls-tree', $self->{c}, '--',$path)
2626 =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
2627 unless (defined $mode && defined $blob) {
2628 die "$path was not found in commit $self->{c} (r$rev)\n";
2629 }
2630 { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
2631 pool => SVN::Pool->new, action => 'M' };
2632}
2633sub add_file {
2635 my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
2636 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2637 delete $self->{empty}->{$dir};
2638 { path => $path, mode_a => 100644, mode_b => 100644,
2639 pool => SVN::Pool->new, action => 'A' };
2640}
2641sub add_directory {
2643 my ($self, $path, $cp_path, $cp_rev) = @_;
2644 my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
2645 delete $self->{empty}->{$dir};
2646 $self->{empty}->{$path} = 1;
2647 { path => $path };
2648}
2649sub change_dir_prop {
2651 my ($self, $db, $prop, $value) = @_;
2652 $self->{dir_prop}->{$db->{path}} ||= {};
2653 $self->{dir_prop}->{$db->{path}}->{$prop} = $value;
2654 undef;
2655}
2656sub absent_directory {
2658 my ($self, $path, $pb) = @_;
2659 $self->{absent_dir}->{$pb->{path}} ||= [];
2660 push @{$self->{absent_dir}->{$pb->{path}}}, $path;
2661 undef;
2662}
2663sub absent_file {
2665 my ($self, $path, $pb) = @_;
2666 $self->{absent_file}->{$pb->{path}} ||= [];
2667 push @{$self->{absent_file}->{$pb->{path}}}, $path;
2668 undef;
2669}
2670sub change_file_prop {
2672 my ($self, $fb, $prop, $value) = @_;
2673 if ($prop eq 'svn:executable') {
2674 if ($fb->{mode_b} != 120000) {
2675 $fb->{mode_b} = defined $value ? 100755 : 100644;
2676 }
2677 } elsif ($prop eq 'svn:special') {
2678 $fb->{mode_b} = defined $value ? 120000 : 100644;
2679 } else {
2680 $self->{file_prop}->{$fb->{path}} ||= {};
2681 $self->{file_prop}->{$fb->{path}}->{$prop} = $value;
2682 }
2683 undef;
2684}
2685sub apply_textdelta {
2687 my ($self, $fb, $exp) = @_;
2688 my $fh = IO::File->new_tmpfile;
2689 $fh->autoflush(1);
2690 # $fh gets auto-closed() by SVN::TxDelta::apply(),
2691 # (but $base does not,) so dup() it for reading in close_file
2692 open my $dup, '<&', $fh or croak $!;
2693 my $base = IO::File->new_tmpfile;
2694 $base->autoflush(1);
2695 if ($fb->{blob}) {
2696 defined (my $pid = fork) or croak $!;
2697 if (!$pid) {
2698 open STDOUT, '>&', $base or croak $!;
2699 print STDOUT 'link ' if ($fb->{mode_a} == 120000);
2700 exec qw/git-cat-file blob/, $fb->{blob} or croak $!;
2701 }
2702 waitpid $pid, 0;
2703 croak $? if $?;
2704 if (defined $exp) {
2706 seek $base, 0, 0 or croak $!;
2707 my $md5 = Digest::MD5->new;
2708 $md5->addfile($base);
2709 my $got = $md5->hexdigest;
2710 die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
2711 "expected: $exp\n",
2712 " got: $got\n" if ($got ne $exp);
2713 }
2714 }
2715 seek $base, 0, 0 or croak $!;
2716 $fb->{fh} = $dup;
2717 $fb->{base} = $base;
2718 [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ];
2719}
2720sub close_file {
2722 my ($self, $fb, $exp) = @_;
2723 my $hash;
2724 my $path = $fb->{path};
2725 if (my $fh = $fb->{fh}) {
2726 seek($fh, 0, 0) or croak $!;
2727 my $md5 = Digest::MD5->new;
2728 $md5->addfile($fh);
2729 my $got = $md5->hexdigest;
2730 die "Checksum mismatch: $path\n",
2731 "expected: $exp\n got: $got\n" if ($got ne $exp);
2732 seek($fh, 0, 0) or croak $!;
2733 if ($fb->{mode_b} == 120000) {
2734 read($fh, my $buf, 5) == 5 or croak $!;
2735 $buf eq 'link ' or die "$path has mode 120000",
2736 "but is not a link\n";
2737 }
2738 defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n";
2739 if (!$pid) {
2740 open STDIN, '<&', $fh or croak $!;
2741 exec qw/git-hash-object -w --stdin/ or croak $!;
2742 }
2743 chomp($hash = do { local $/; <$out> });
2744 close $out or croak $!;
2745 close $fh or croak $!;
2746 $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n";
2747 close $fb->{base} or croak $!;
2748 } else {
2749 $hash = $fb->{blob} or die "no blob information\n";
2750 }
2751 $fb->{pool}->clear;
2752 my $gui = $self->{gui};
2753 print $gui "$fb->{mode_b} $hash\t$path\0" or croak $!;
2754 print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $self->{q};
2755 undef;
2756}
2757sub abort_edit {
2759 my $self = shift;
2760 eval { command_close_pipe($self->{gui}, $self->{ctx}) };
2761 $self->SUPER::abort_edit(@_);
2762}
2763sub close_edit {
2765 my $self = shift;
2766 command_close_pipe($self->{gui}, $self->{ctx});
2767 $self->{git_commit_ok} = 1;
2768 $self->SUPER::close_edit(@_);
2769}
2770package SVN::Git::Editor;
2772use vars qw/@ISA/;
2773use strict;
2774use warnings;
2775use Carp qw/croak/;
2776use IO::File;
2777use Git qw/command command_oneline command_noisy
2778 command_output_pipe command_input_pipe command_close_pipe/;
2779sub new {
2781 my $class = shift;
2782 my $git_svn = shift;
2783 my $self = SVN::Delta::Editor->new(@_);
2784 bless $self, $class;
2785 foreach (qw/svn_path c r ra /) {
2786 die "$_ required!\n" unless (defined $git_svn->{$_});
2787 $self->{$_} = $git_svn->{$_};
2788 }
2789 $self->{pool} = SVN::Pool->new;
2790 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
2791 $self->{rm} = { };
2792 require Digest::MD5;
2793 return $self;
2794}
2795sub split_path {
2797 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
2798}
2799sub repo_path {
2801 (defined $_[1] && length $_[1]) ? $_[1] : ''
2802}
2803sub url_path {
2805 my ($self, $path) = @_;
2806 $self->{ra}->{url} . '/' . $self->repo_path($path);
2807}
2808sub rmdirs {
2810 my ($self, $q) = @_;
2811 my $rm = $self->{rm};
2812 delete $rm->{''}; # we never delete the url we're tracking
2813 return unless %$rm;
2814 foreach (keys %$rm) {
2816 my @d = split m#/#, $_;
2817 my $c = shift @d;
2818 $rm->{$c} = 1;
2819 while (@d) {
2820 $c .= '/' . shift @d;
2821 $rm->{$c} = 1;
2822 }
2823 }
2824 delete $rm->{$self->{svn_path}};
2825 delete $rm->{''}; # we never delete the url we're tracking
2826 return unless %$rm;
2827 my ($fh, $ctx) = command_output_pipe(
2829 qw/ls-tree --name-only -r -z/, $self->{c});
2830 local $/ = "\0";
2831 while (<$fh>) {
2832 chomp;
2833 my @dn = split m#/#, $_;
2834 while (pop @dn) {
2835 delete $rm->{join '/', @dn};
2836 }
2837 unless (%$rm) {
2838 eval { command_close_pipe($fh) };
2839 return;
2840 }
2841 }
2842 command_close_pipe($fh, $ctx);
2843 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
2845 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
2846 $self->close_directory($bat->{$d}, $p);
2847 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
2848 print "\tD+\t/$d/\n" unless $q;
2849 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
2850 delete $bat->{$d};
2851 }
2852}
2853sub open_or_add_dir {
2855 my ($self, $full_path, $baton) = @_;
2856 my $p = SVN::Pool->new;
2857 my $t = $self->{ra}->check_path($full_path, $self->{r}, $p);
2858 $p->clear;
2859 if ($t == $SVN::Node::none) {
2860 return $self->add_directory($full_path, $baton,
2861 undef, -1, $self->{pool});
2862 } elsif ($t == $SVN::Node::dir) {
2863 return $self->open_directory($full_path, $baton,
2864 $self->{r}, $self->{pool});
2865 }
2866 print STDERR "$full_path already exists in repository at ",
2867 "r$self->{r} and it is not a directory (",
2868 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
2869 exit 1;
2870}
2871sub ensure_path {
2873 my ($self, $path) = @_;
2874 my $bat = $self->{bat};
2875 $path = $self->repo_path($path);
2876 return $bat->{''} unless (length $path);
2877 my @p = split m#/+#, $path;
2878 my $c = shift @p;
2879 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''});
2880 while (@p) {
2881 my $c0 = $c;
2882 $c .= '/' . shift @p;
2883 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0});
2884 }
2885 return $bat->{$c};
2886}
2887sub A {
2889 my ($self, $m, $q) = @_;
2890 my ($dir, $file) = split_path($m->{file_b});
2891 my $pbat = $self->ensure_path($dir);
2892 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2893 undef, -1);
2894 print "\tA\t$m->{file_b}\n" unless $q;
2895 $self->chg_file($fbat, $m);
2896 $self->close_file($fbat,undef,$self->{pool});
2897}
2898sub C {
2900 my ($self, $m, $q) = @_;
2901 my ($dir, $file) = split_path($m->{file_b});
2902 my $pbat = $self->ensure_path($dir);
2903 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2904 $self->url_path($m->{file_a}), $self->{r});
2905 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $q;
2906 $self->chg_file($fbat, $m);
2907 $self->close_file($fbat,undef,$self->{pool});
2908}
2909sub delete_entry {
2911 my ($self, $path, $pbat) = @_;
2912 my $rpath = $self->repo_path($path);
2913 my ($dir, $file) = split_path($rpath);
2914 $self->{rm}->{$dir} = 1;
2915 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
2916}
2917sub R {
2919 my ($self, $m, $q) = @_;
2920 my ($dir, $file) = split_path($m->{file_b});
2921 my $pbat = $self->ensure_path($dir);
2922 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
2923 $self->url_path($m->{file_a}), $self->{r});
2924 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $q;
2925 $self->chg_file($fbat, $m);
2926 $self->close_file($fbat,undef,$self->{pool});
2927 ($dir, $file) = split_path($m->{file_a});
2929 $pbat = $self->ensure_path($dir);
2930 $self->delete_entry($m->{file_a}, $pbat);
2931}
2932sub M {
2934 my ($self, $m, $q) = @_;
2935 my ($dir, $file) = split_path($m->{file_b});
2936 my $pbat = $self->ensure_path($dir);
2937 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
2938 $pbat,$self->{r},$self->{pool});
2939 print "\t$m->{chg}\t$m->{file_b}\n" unless $q;
2940 $self->chg_file($fbat, $m);
2941 $self->close_file($fbat,undef,$self->{pool});
2942}
2943sub T { shift->M(@_) }
2945sub change_file_prop {
2947 my ($self, $fbat, $pname, $pval) = @_;
2948 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
2949}
2950sub chg_file {
2952 my ($self, $fbat, $m) = @_;
2953 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
2954 $self->change_file_prop($fbat,'svn:executable','*');
2955 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
2956 $self->change_file_prop($fbat,'svn:executable',undef);
2957 }
2958 my $fh = IO::File->new_tmpfile or croak $!;
2959 if ($m->{mode_b} =~ /^120/) {
2960 print $fh 'link ' or croak $!;
2961 $self->change_file_prop($fbat,'svn:special','*');
2962 } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
2963 $self->change_file_prop($fbat,'svn:special',undef);
2964 }
2965 defined(my $pid = fork) or croak $!;
2966 if (!$pid) {
2967 open STDOUT, '>&', $fh or croak $!;
2968 exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!;
2969 }
2970 waitpid $pid, 0;
2971 croak $? if $?;
2972 $fh->flush == 0 or croak $!;
2973 seek $fh, 0, 0 or croak $!;
2974 my $md5 = Digest::MD5->new;
2976 $md5->addfile($fh) or croak $!;
2977 seek $fh, 0, 0 or croak $!;
2978 my $exp = $md5->hexdigest;
2980 my $pool = SVN::Pool->new;
2981 my $atd = $self->apply_textdelta($fbat, undef, $pool);
2982 my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool);
2983 die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp);
2984 $pool->clear;
2985 close $fh or croak $!;
2987}
2988sub D {
2990 my ($self, $m, $q) = @_;
2991 my ($dir, $file) = split_path($m->{file_b});
2992 my $pbat = $self->ensure_path($dir);
2993 print "\tD\t$m->{file_b}\n" unless $q;
2994 $self->delete_entry($m->{file_b}, $pbat);
2995}
2996sub close_edit {
2998 my ($self) = @_;
2999 my ($p,$bat) = ($self->{pool}, $self->{bat});
3000 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
3001 $self->close_directory($bat->{$_}, $p);
3002 }
3003 $self->SUPER::close_edit($p);
3004 $p->clear;
3005}
3006sub abort_edit {
3008 my ($self) = @_;
3009 $self->SUPER::abort_edit($self->{pool});
3010 $self->{pool}->clear;
3011}
3012__END__
3014Data structures:
3016$log_msg hashref as returned by libsvn_log_entry()
3018{
3019 msg => 'whitespace-formatted log entry
3020', # trailing newline is preserved
3021 revision => '8', # integer
3022 date => '2004-02-24T17:01:44.108345Z', # commit date
3023 author => 'committer name'
3024};
3025@mods = array of diff-index line hashes, each element represents one line
3027 of diff-index output
3028diff-index line ($m hash)
3030{
3031 mode_a => first column of diff-index output, no leading ':',
3032 mode_b => second column of diff-index output,
3033 sha1_b => sha1sum of the final blob,
3034 chg => change type [MCRADT],
3035 file_a => original file name of a file (iff chg is 'C' or 'R')
3036 file_b => new/current file name of a file (any chg)
3037}
3038;
3039# retval of read_url_paths{,_all}();
3041$l_map = {
3042 # repository root url
3043 'https://svn.musicpd.org' => {
3044 # repository path # GIT_SVN_ID
3045 'mpd/trunk' => 'trunk',
3046 'mpd/tags/0.11.5' => 'tags/0.11.5',
3047 },
3048}
3049Notes:
3051 I don't trust the each() function on unless I created %hash myself
3052 because the internal iterator may not have started at base.