/
git-svn.perl
executable file
·2232 lines (2026 loc) · 62.6 KB
/
git-svn.perl
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#!/usr/bin/perl
# Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
# License: GPL v2 or later
use 5.008;
use warnings;
use strict;
use vars qw/ $AUTHOR $VERSION
$sha1 $sha1_short $_revision $_repository
$_q $_authors $_authors_prog %users/;
$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
$VERSION = '@@GIT_VERSION@@';
use Carp qw/croak/;
use File::Basename qw/dirname basename/;
use File::Path qw/mkpath/;
use File::Spec;
use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
use Memoize;
use Git::SVN;
use Git::SVN::Editor;
use Git::SVN::Fetcher;
use Git::SVN::Ra;
use Git::SVN::Prompt;
use Git::SVN::Log;
use Git::SVN::Migration;
use Git::SVN::Utils qw(
fatal
can_compress
canonicalize_path
canonicalize_url
join_paths
add_path_to_url
join_paths
);
use Git qw(
git_cmd_try
command
command_oneline
command_noisy
command_output_pipe
command_close_pipe
command_bidi_pipe
command_close_bidi_pipe
get_record
);
BEGIN {
Memoize::memoize 'Git::config';
Memoize::memoize 'Git::config_bool';
}
# From which subdir have we been invoked?
my $cmd_dir_prefix = eval {
command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
} || '';
$Git::SVN::Ra::_log_window_size = 100;
if (! exists $ENV{SVN_SSH} && exists $ENV{GIT_SSH}) {
$ENV{SVN_SSH} = $ENV{GIT_SSH};
}
if (exists $ENV{SVN_SSH} && $^O eq 'msys') {
$ENV{SVN_SSH} =~ s/\\/\\\\/g;
$ENV{SVN_SSH} =~ s/(.*)/"$1"/;
}
$Git::SVN::Log::TZ = $ENV{TZ};
$ENV{TZ} = 'UTC';
$| = 1; # unbuffer STDOUT
# All SVN commands do it. Otherwise we may die on SIGPIPE when the remote
# repository decides to close the connection which we expect to be kept alive.
$SIG{PIPE} = 'IGNORE';
# Given a dot separated version number, "subtract" it from
# the SVN::Core::VERSION; non-negaitive return means the SVN::Core
# is at least at the version the caller asked for.
sub compare_svn_version {
my (@ours) = split(/\./, $SVN::Core::VERSION);
my (@theirs) = split(/\./, $_[0]);
my ($i, $diff);
for ($i = 0; $i < @ours && $i < @theirs; $i++) {
$diff = $ours[$i] - $theirs[$i];
return $diff if ($diff);
}
return 1 if ($i < @ours);
return -1 if ($i < @theirs);
return 0;
}
sub _req_svn {
require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
require SVN::Ra;
require SVN::Delta;
if (::compare_svn_version('1.1.0') < 0) {
fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
}
}
$sha1 = qr/[a-f\d]{40}/;
$sha1_short = qr/[a-f\d]{4,40}/;
my ($_stdin, $_help, $_edit,
$_message, $_file, $_branch_dest,
$_template, $_shared,
$_version, $_fetch_all, $_no_rebase, $_fetch_parent,
$_before, $_after,
$_merge, $_strategy, $_preserve_merges, $_dry_run, $_parents, $_local,
$_prefix, $_no_checkout, $_url, $_verbose,
$_commit_url, $_tag, $_merge_info, $_interactive, $_set_svn_props);
# This is a refactoring artifact so Git::SVN can get at this git-svn switch.
sub opt_prefix { return $_prefix || '' }
$Git::SVN::Fetcher::_placeholder_filename = ".gitignore";
$_q ||= 0;
my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
'config-dir=s' => \$Git::SVN::Ra::config_dir,
'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
'ignore-paths=s' => \$Git::SVN::Fetcher::_ignore_regex,
'include-paths=s' => \$Git::SVN::Fetcher::_include_regex,
'ignore-refs=s' => \$Git::SVN::Ra::_ignore_refs_regex );
my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
'authors-file|A=s' => \$_authors,
'authors-prog=s' => \$_authors_prog,
'repack:i' => \$Git::SVN::_repack,
'noMetadata' => \$Git::SVN::_no_metadata,
'useSvmProps' => \$Git::SVN::_use_svm_props,
'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
'no-checkout' => \$_no_checkout,
'quiet|q+' => \$_q,
'repack-flags|repack-args|repack-opts=s' =>
\$Git::SVN::_repack_flags,
'use-log-author' => \$Git::SVN::_use_log_author,
'add-author-from' => \$Git::SVN::_add_author_from,
'localtime' => \$Git::SVN::_localtime,
%remote_opts );
my ($_trunk, @_tags, @_branches, $_stdlayout);
my %icv;
my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags,
'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix,
'stdlayout|s' => \$_stdlayout,
'minimize-url|m!' => \$Git::SVN::_minimize_url,
'no-metadata' => sub { $icv{noMetadata} = 1 },
'use-svm-props' => sub { $icv{useSvmProps} = 1 },
'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
'rewrite-uuid=s' => sub { $icv{rewriteUUID} = $_[1] },
%remote_opts );
my %cmt_opts = ( 'edit|e' => \$_edit,
'rmdir' => \$Git::SVN::Editor::_rmdir,
'find-copies-harder' => \$Git::SVN::Editor::_find_copies_harder,
'l=i' => \$Git::SVN::Editor::_rename_limit,
'copy-similarity|C=i'=> \$Git::SVN::Editor::_cp_similarity
);
my %cmd = (
fetch => [ \&cmd_fetch, "Download new revisions from SVN",
{ 'revision|r=s' => \$_revision,
'fetch-all|all' => \$_fetch_all,
'parent|p' => \$_fetch_parent,
%fc_opts } ],
clone => [ \&cmd_clone, "Initialize and fetch revisions",
{ 'revision|r=s' => \$_revision,
'preserve-empty-dirs' =>
\$Git::SVN::Fetcher::_preserve_empty_dirs,
'placeholder-filename=s' =>
\$Git::SVN::Fetcher::_placeholder_filename,
%fc_opts, %init_opts } ],
init => [ \&cmd_init, "Initialize a repo for tracking" .
" (requires URL argument)",
\%init_opts ],
'multi-init' => [ \&cmd_multi_init,
"Deprecated alias for ".
"'$0 init -T<trunk> -b<branches> -t<tags>'",
\%init_opts ],
dcommit => [ \&cmd_dcommit,
'Commit several diffs to merge with upstream',
{ 'merge|m|M' => \$_merge,
'strategy|s=s' => \$_strategy,
'verbose|v' => \$_verbose,
'dry-run|n' => \$_dry_run,
'fetch-all|all' => \$_fetch_all,
'commit-url=s' => \$_commit_url,
'set-svn-props=s' => \$_set_svn_props,
'revision|r=i' => \$_revision,
'no-rebase' => \$_no_rebase,
'mergeinfo=s' => \$_merge_info,
'interactive|i' => \$_interactive,
%cmt_opts, %fc_opts } ],
branch => [ \&cmd_branch,
'Create a branch in the SVN repository',
{ 'message|m=s' => \$_message,
'destination|d=s' => \$_branch_dest,
'dry-run|n' => \$_dry_run,
'parents' => \$_parents,
'tag|t' => \$_tag,
'username=s' => \$Git::SVN::Prompt::_username,
'commit-url=s' => \$_commit_url } ],
tag => [ sub { $_tag = 1; cmd_branch(@_) },
'Create a tag in the SVN repository',
{ 'message|m=s' => \$_message,
'destination|d=s' => \$_branch_dest,
'dry-run|n' => \$_dry_run,
'parents' => \$_parents,
'username=s' => \$Git::SVN::Prompt::_username,
'commit-url=s' => \$_commit_url } ],
'set-tree' => [ \&cmd_set_tree,
"Set an SVN repository to a git tree-ish",
{ 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ],
'create-ignore' => [ \&cmd_create_ignore,
'Create a .gitignore per svn:ignore',
{ 'revision|r=i' => \$_revision
} ],
'mkdirs' => [ \&cmd_mkdirs ,
"recreate empty directories after a checkout",
{ 'revision|r=i' => \$_revision } ],
'propget' => [ \&cmd_propget,
'Print the value of a property on a file or directory',
{ 'revision|r=i' => \$_revision } ],
'propset' => [ \&cmd_propset,
'Set the value of a property on a file or directory - will be set on commit',
{} ],
'proplist' => [ \&cmd_proplist,
'List all properties of a file or directory',
{ 'revision|r=i' => \$_revision } ],
'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
{ 'revision|r=i' => \$_revision
} ],
'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
{ 'revision|r=i' => \$_revision
} ],
'multi-fetch' => [ \&cmd_multi_fetch,
"Deprecated alias for $0 fetch --all",
{ 'revision|r=s' => \$_revision, %fc_opts } ],
'migrate' => [ sub { },
# no-op, we automatically run this anyways,
'Migrate configuration/metadata/layout from
previous versions of git-svn',
{ 'minimize' => \$Git::SVN::Migration::_minimize,
%remote_opts } ],
'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
{ 'limit=i' => \$Git::SVN::Log::limit,
'revision|r=s' => \$_revision,
'verbose|v' => \$Git::SVN::Log::verbose,
'incremental' => \$Git::SVN::Log::incremental,
'oneline' => \$Git::SVN::Log::oneline,
'show-commit' => \$Git::SVN::Log::show_commit,
'non-recursive' => \$Git::SVN::Log::non_recursive,
'authors-file|A=s' => \$_authors,
'color' => \$Git::SVN::Log::color,
'pager=s' => \$Git::SVN::Log::pager
} ],
'find-rev' => [ \&cmd_find_rev,
"Translate between SVN revision numbers and tree-ish",
{ 'B|before' => \$_before,
'A|after' => \$_after } ],
'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
{ 'merge|m|M' => \$_merge,
'verbose|v' => \$_verbose,
'strategy|s=s' => \$_strategy,
'local|l' => \$_local,
'fetch-all|all' => \$_fetch_all,
'dry-run|n' => \$_dry_run,
'preserve-merges|p' => \$_preserve_merges,
%fc_opts } ],
'commit-diff' => [ \&cmd_commit_diff,
'Commit a diff between two trees',
{ 'message|m=s' => \$_message,
'file|F=s' => \$_file,
'revision|r=s' => \$_revision,
%cmt_opts } ],
'info' => [ \&cmd_info,
"Show info about the latest SVN revision
on the current branch",
{ 'url' => \$_url, } ],
'blame' => [ \&Git::SVN::Log::cmd_blame,
"Show what revision and author last modified each line of a file",
{ 'git-format' => \$Git::SVN::Log::_git_format } ],
'reset' => [ \&cmd_reset,
"Undo fetches back to the specified SVN revision",
{ 'revision|r=s' => \$_revision,
'parent|p' => \$_fetch_parent } ],
'gc' => [ \&cmd_gc,
"Compress unhandled.log files in .git/svn and remove " .
"index files in .git/svn",
{} ],
);
package FakeTerm;
sub new {
my ($class, $reason) = @_;
return bless \$reason, shift;
}
sub readline {
my $self = shift;
die "Cannot use readline on FakeTerm: $$self";
}
package main;
my $term;
sub term_init {
$term = eval {
require Term::ReadLine;
$ENV{"GIT_SVN_NOTTY"}
? new Term::ReadLine 'git-svn', \*STDIN, \*STDOUT
: new Term::ReadLine 'git-svn';
};
if ($@) {
$term = new FakeTerm "$@: going non-interactive";
}
}
my $cmd;
for (my $i = 0; $i < @ARGV; $i++) {
if (defined $cmd{$ARGV[$i]}) {
$cmd = $ARGV[$i];
splice @ARGV, $i, 1;
last;
} elsif ($ARGV[$i] eq 'help') {
$cmd = $ARGV[$i+1];
usage(0);
}
};
# make sure we're always running at the top-level working directory
if ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
$ENV{GIT_DIR} ||= ".git";
# catch the submodule case
if (-f $ENV{GIT_DIR}) {
open(my $fh, '<', $ENV{GIT_DIR}) or
die "failed to open $ENV{GIT_DIR}: $!\n";
$ENV{GIT_DIR} = $1 if <$fh> =~ /^gitdir: (.+)$/;
}
} elsif ($cmd) {
my ($git_dir, $cdup);
git_cmd_try {
$git_dir = command_oneline([qw/rev-parse --git-dir/]);
} "Unable to find .git directory\n";
git_cmd_try {
$cdup = command_oneline(qw/rev-parse --show-cdup/);
chomp $cdup if ($cdup);
$cdup = "." unless ($cdup && length $cdup);
} "Already at toplevel, but $git_dir not found\n";
$ENV{GIT_DIR} = $git_dir;
chdir $cdup or die "Unable to chdir up to '$cdup'\n";
$_repository = Git->repository(Repository => $ENV{GIT_DIR});
}
my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
read_git_config(\%opts) if $ENV{GIT_DIR};
if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
Getopt::Long::Configure('pass_through');
}
my $rv = GetOptions(%opts, 'h|H' => \$_help, 'version|V' => \$_version,
'minimize-connections' => \$Git::SVN::Migration::_minimize,
'id|i=s' => \$Git::SVN::default_ref_id,
'svn-remote|remote|R=s' => sub {
$Git::SVN::no_reuse_existing = 1;
$Git::SVN::default_repo_id = $_[1] });
exit 1 if (!$rv && $cmd && $cmd ne 'log');
usage(0) if $_help;
version() if $_version;
usage(1) unless defined $cmd;
load_authors() if $_authors;
if (defined $_authors_prog) {
$_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'";
}
unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
Git::SVN::Migration::migration_check();
}
Git::SVN::init_vars();
eval {
Git::SVN::verify_remotes_sanity();
$cmd{$cmd}->[0]->(@ARGV);
post_fetch_checkout();
};
fatal $@ if $@;
exit 0;
####################### primary functions ######################
sub usage {
my $exit = shift || 0;
my $fd = $exit ? \*STDERR : \*STDOUT;
print $fd <<"";
git-svn - bidirectional operations between a single Subversion tree and git
usage: git svn <command> [options] [arguments]\n
print $fd "Available commands:\n" unless $cmd;
foreach (sort keys %cmd) {
next if $cmd && $cmd ne $_;
next if /^multi-/; # don't show deprecated commands
print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
foreach (sort keys %{$cmd{$_}->[2]}) {
# mixed-case options are for .git/config only
next if /[A-Z]/ && /^[a-z]+$/i;
# prints out arguments as they should be passed:
my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
"--$_" : "-$_" }
split /\|/,$_)," $x\n";
}
}
print $fd <<"";
\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
arbitrary identifier if you're tracking multiple SVN branches/repositories in
one git repository and want to keep them separate. See git-svn(1) for more
information.
exit $exit;
}
sub version {
::_req_svn();
print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
exit 0;
}
sub ask {
my ($prompt, %arg) = @_;
my $valid_re = $arg{valid_re};
my $default = $arg{default};
my $resp;
my $i = 0;
term_init() unless $term;
if ( !( defined($term->IN)
&& defined( fileno($term->IN) )
&& defined( $term->OUT )
&& defined( fileno($term->OUT) ) ) ){
return defined($default) ? $default : undef;
}
while ($i++ < 10) {
$resp = $term->readline($prompt);
if (!defined $resp) { # EOF
print "\n";
return defined $default ? $default : undef;
}
if ($resp eq '' and defined $default) {
return $default;
}
if (!defined $valid_re or $resp =~ /$valid_re/) {
return $resp;
}
}
return undef;
}
sub do_git_init_db {
unless (-d $ENV{GIT_DIR}) {
my @init_db = ('init');
push @init_db, "--template=$_template" if defined $_template;
if (defined $_shared) {
if ($_shared =~ /[a-z]/) {
push @init_db, "--shared=$_shared";
} else {
push @init_db, "--shared";
}
}
command_noisy(@init_db);
$_repository = Git->repository(Repository => ".git");
}
my $set;
my $pfx = "svn-remote.$Git::SVN::default_repo_id";
foreach my $i (keys %icv) {
die "'$set' and '$i' cannot both be set\n" if $set;
next unless defined $icv{$i};
command_noisy('config', "$pfx.$i", $icv{$i});
$set = $i;
}
my $ignore_paths_regex = \$Git::SVN::Fetcher::_ignore_regex;
command_noisy('config', "$pfx.ignore-paths", $$ignore_paths_regex)
if defined $$ignore_paths_regex;
my $include_paths_regex = \$Git::SVN::Fetcher::_include_regex;
command_noisy('config', "$pfx.include-paths", $$include_paths_regex)
if defined $$include_paths_regex;
my $ignore_refs_regex = \$Git::SVN::Ra::_ignore_refs_regex;
command_noisy('config', "$pfx.ignore-refs", $$ignore_refs_regex)
if defined $$ignore_refs_regex;
if (defined $Git::SVN::Fetcher::_preserve_empty_dirs) {
my $fname = \$Git::SVN::Fetcher::_placeholder_filename;
command_noisy('config', "$pfx.preserve-empty-dirs", 'true');
command_noisy('config', "$pfx.placeholder-filename", $$fname);
}
}
sub init_subdir {
my $repo_path = shift or return;
mkpath([$repo_path]) unless -d $repo_path;
chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
$ENV{GIT_DIR} = '.git';
$_repository = Git->repository(Repository => $ENV{GIT_DIR});
}
sub cmd_clone {
my ($url, $path) = @_;
if (!$url) {
die "SVN repository location required ",
"as a command-line argument\n";
} elsif (!defined $path &&
(defined $_trunk || @_branches || @_tags ||
defined $_stdlayout) &&
$url !~ m#^[a-z\+]+://#) {
$path = $url;
}
$path = basename($url) if !defined $path || !length $path;
my $authors_absolute = $_authors ? File::Spec->rel2abs($_authors) : "";
cmd_init($url, $path);
command_oneline('config', 'svn.authorsfile', $authors_absolute)
if $_authors;
Git::SVN::fetch_all($Git::SVN::default_repo_id);
}
sub cmd_init {
if (defined $_stdlayout) {
$_trunk = 'trunk' if (!defined $_trunk);
@_tags = 'tags' if (! @_tags);
@_branches = 'branches' if (! @_branches);
}
if (defined $_trunk || @_branches || @_tags) {
return cmd_multi_init(@_);
}
my $url = shift or die "SVN repository location required ",
"as a command-line argument\n";
$url = canonicalize_url($url);
init_subdir(@_);
do_git_init_db();
if ($Git::SVN::_minimize_url eq 'unset') {
$Git::SVN::_minimize_url = 0;
}
Git::SVN->init($url);
}
sub cmd_fetch {
if (grep /^\d+=./, @_) {
die "'<rev>=<commit>' fetch arguments are ",
"no longer supported.\n";
}
my ($remote) = @_;
if (@_ > 1) {
die "usage: $0 fetch [--all] [--parent] [svn-remote]\n";
}
$Git::SVN::no_reuse_existing = undef;
if ($_fetch_parent) {
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
unless ($gs) {
die "Unable to determine upstream SVN information from ",
"working tree history\n";
}
# just fetch, don't checkout.
$_no_checkout = 'true';
$_fetch_all ? $gs->fetch_all : $gs->fetch;
} elsif ($_fetch_all) {
cmd_multi_fetch();
} else {
$remote ||= $Git::SVN::default_repo_id;
Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
}
}
sub cmd_set_tree {
my (@commits) = @_;
if ($_stdin || !@commits) {
print "Reading from stdin...\n";
@commits = ();
while (<STDIN>) {
if (/\b($sha1_short)\b/o) {
unshift @commits, $1;
}
}
}
my @revs;
foreach my $c (@commits) {
my @tmp = command('rev-parse',$c);
if (scalar @tmp == 1) {
push @revs, $tmp[0];
} elsif (scalar @tmp > 1) {
push @revs, reverse(command('rev-list',@tmp));
} else {
fatal "Failed to rev-parse $c";
}
}
my $gs = Git::SVN->new;
my ($r_last, $cmt_last) = $gs->last_rev_commit;
$gs->fetch;
if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
fatal "There are new revisions that were fetched ",
"and need to be merged (or acknowledged) ",
"before committing.\nlast rev: $r_last\n",
" current: $gs->{last_rev}";
}
$gs->set_tree($_) foreach @revs;
print "Done committing ",scalar @revs," revisions to SVN\n";
unlink $gs->{index};
}
sub split_merge_info_range {
my ($range) = @_;
if ($range =~ /(\d+)-(\d+)/) {
return (int($1), int($2));
} else {
return (int($range), int($range));
}
}
sub combine_ranges {
my ($in) = @_;
my @fnums = ();
my @arr = split(/,/, $in);
for my $element (@arr) {
my ($start, $end) = split_merge_info_range($element);
push @fnums, $start;
}
my @sorted = @arr [ sort {
$fnums[$a] <=> $fnums[$b]
} 0..$#arr ];
my @return = ();
my $last = -1;
my $first = -1;
for my $element (@sorted) {
my ($start, $end) = split_merge_info_range($element);
if ($last == -1) {
$first = $start;
$last = $end;
next;
}
if ($start <= $last+1) {
if ($end > $last) {
$last = $end;
}
next;
}
if ($first == $last) {
push @return, "$first";
} else {
push @return, "$first-$last";
}
$first = $start;
$last = $end;
}
if ($first != -1) {
if ($first == $last) {
push @return, "$first";
} else {
push @return, "$first-$last";
}
}
return join(',', @return);
}
sub merge_revs_into_hash {
my ($hash, $minfo) = @_;
my @lines = split(' ', $minfo);
for my $line (@lines) {
my ($branchpath, $revs) = split(/:/, $line);
if (exists($hash->{$branchpath})) {
# Merge the two revision sets
my $combined = "$hash->{$branchpath},$revs";
$hash->{$branchpath} = combine_ranges($combined);
} else {
# Just do range combining for consolidation
$hash->{$branchpath} = combine_ranges($revs);
}
}
}
sub merge_merge_info {
my ($mergeinfo_one, $mergeinfo_two, $ignore_branch) = @_;
my %result_hash = ();
merge_revs_into_hash(\%result_hash, $mergeinfo_one);
merge_revs_into_hash(\%result_hash, $mergeinfo_two);
delete $result_hash{$ignore_branch} if $ignore_branch;
my $result = '';
# Sort below is for consistency's sake
for my $branchname (sort keys(%result_hash)) {
my $revlist = $result_hash{$branchname};
$result .= "$branchname:$revlist\n"
}
return $result;
}
sub populate_merge_info {
my ($d, $gs, $uuid, $linear_refs, $rewritten_parent) = @_;
my %parentshash;
read_commit_parents(\%parentshash, $d);
my @parents = @{$parentshash{$d}};
if ($#parents > 0) {
# Merge commit
my $all_parents_ok = 1;
my $aggregate_mergeinfo = '';
my $rooturl = $gs->repos_root;
my ($target_branch) = $gs->full_pushurl =~ /^\Q$rooturl\E(.*)/;
if (defined($rewritten_parent)) {
# Replace first parent with newly-rewritten version
shift @parents;
unshift @parents, $rewritten_parent;
}
foreach my $parent (@parents) {
my ($branchurl, $svnrev, $paruuid) =
cmt_metadata($parent);
unless (defined($svnrev)) {
# Should have been caught be preflight check
fatal "merge commit $d has ancestor $parent, but that change "
."does not have git-svn metadata!";
}
unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
fatal "commit $parent git-svn metadata changed mid-run!";
}
my $branchpath = $1;
my $ra = Git::SVN::Ra->new($branchurl);
my (undef, undef, $props) =
$ra->get_dir(canonicalize_path("."), $svnrev);
my $par_mergeinfo = $props->{'svn:mergeinfo'};
unless (defined $par_mergeinfo) {
$par_mergeinfo = '';
}
# Merge previous mergeinfo values
$aggregate_mergeinfo =
merge_merge_info($aggregate_mergeinfo,
$par_mergeinfo,
$target_branch);
next if $parent eq $parents[0]; # Skip first parent
# Add new changes being placed in tree by merge
my @cmd = (qw/rev-list --reverse/,
$parent, qw/--not/);
foreach my $par (@parents) {
unless ($par eq $parent) {
push @cmd, $par;
}
}
my @revsin = ();
my ($revlist, $ctx) = command_output_pipe(@cmd);
while (<$revlist>) {
my $irev = $_;
chomp $irev;
my (undef, $csvnrev, undef) =
cmt_metadata($irev);
unless (defined $csvnrev) {
# A child is missing SVN annotations...
# this might be OK, or might not be.
warn "W:child $irev is merged into revision "
."$d but does not have git-svn metadata. "
."This means git-svn cannot determine the "
."svn revision numbers to place into the "
."svn:mergeinfo property. You must ensure "
."a branch is entirely committed to "
."SVN before merging it in order for "
."svn:mergeinfo population to function "
."properly";
}
push @revsin, $csvnrev;
}
command_close_pipe($revlist, $ctx);
last unless $all_parents_ok;
# We now have a list of all SVN revnos which are
# merged by this particular parent. Integrate them.
next if $#revsin == -1;
my $newmergeinfo = "$branchpath:" . join(',', @revsin);
$aggregate_mergeinfo =
merge_merge_info($aggregate_mergeinfo,
$newmergeinfo,
$target_branch);
}
if ($all_parents_ok and $aggregate_mergeinfo) {
return $aggregate_mergeinfo;
}
}
return undef;
}
sub dcommit_rebase {
my ($is_last, $current, $fetched_ref, $svn_error) = @_;
my @diff;
if ($svn_error) {
print STDERR "\nERROR from SVN:\n",
$svn_error->expanded_message, "\n";
}
unless ($_no_rebase) {
# we always want to rebase against the current HEAD,
# not any head that was passed to us
@diff = command('diff-tree', $current,
$fetched_ref, '--');
my @finish;
if (@diff) {
@finish = rebase_cmd();
print STDERR "W: $current and ", $fetched_ref,
" differ, using @finish:\n",
join("\n", @diff), "\n";
} elsif ($is_last) {
print "No changes between ", $current, " and ",
$fetched_ref,
"\nResetting to the latest ",
$fetched_ref, "\n";
@finish = qw/reset --mixed/;
}
command_noisy(@finish, $fetched_ref) if @finish;
}
if ($svn_error) {
die "ERROR: Not all changes have been committed into SVN"
.($_no_rebase ? ".\n" : ", however the committed\n"
."ones (if any) seem to be successfully integrated "
."into the working tree.\n")
."Please see the above messages for details.\n";
}
return @diff;
}
sub cmd_dcommit {
my $head = shift;
command_noisy(qw/update-index --refresh/);
git_cmd_try { command_oneline(qw/diff-index --quiet HEAD --/) }
'Cannot dcommit with a dirty index. Commit your changes first, '
. "or stash them with `git stash'.\n";
$head ||= 'HEAD';
my $old_head;
if ($head ne 'HEAD') {
$old_head = eval {
command_oneline([qw/symbolic-ref -q HEAD/])
};
if ($old_head) {
$old_head =~ s{^refs/heads/}{};
} else {
$old_head = eval { command_oneline(qw/rev-parse HEAD/) };
}
command(['checkout', $head], STDERR => 0);
}
my @refs;
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
unless ($gs) {
die "Unable to determine upstream SVN information from ",
"$head history.\nPerhaps the repository is empty.";
}
if (defined $_commit_url) {
$url = $_commit_url;
} else {
$url = eval { command_oneline('config', '--get',
"svn-remote.$gs->{repo_id}.commiturl") };
if (!$url) {
$url = $gs->full_pushurl
}
}
my $last_rev = $_revision if defined $_revision;
if ($url) {
print "Committing to $url ...\n";
}
my ($linear_refs, $parents) = linearize_history($gs, \@refs);
if ($_no_rebase && scalar(@$linear_refs) > 1) {
warn "Attempting to commit more than one change while ",
"--no-rebase is enabled.\n",
"If these changes depend on each other, re-running ",
"without --no-rebase may be required."
}
if (defined $_interactive){
my $ask_default = "y";
foreach my $d (@$linear_refs){
my ($fh, $ctx) = command_output_pipe(qw(show --summary), "$d");
while (<$fh>){
print $_;
}
command_close_pipe($fh, $ctx);
$_ = ask("Commit this patch to SVN? ([y]es (default)|[n]o|[q]uit|[a]ll): ",
valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
default => $ask_default);
die "Commit this patch reply required" unless defined $_;
if (/^[nq]/i) {
exit(0);
} elsif (/^a/i) {
last;
}
}
}
my $expect_url = $url;
my $push_merge_info = eval {
command_oneline(qw/config --get svn.pushmergeinfo/)
};
if (not defined($push_merge_info)
or $push_merge_info eq "false"
or $push_merge_info eq "no"
or $push_merge_info eq "never") {
$push_merge_info = 0;
}
unless (defined($_merge_info) || ! $push_merge_info) {
# Preflight check of changes to ensure no issues with mergeinfo
# This includes check for uncommitted-to-SVN parents
# (other than the first parent, which we will handle),
# information from different SVN repos, and paths
# which are not underneath this repository root.
my $rooturl = $gs->repos_root;
foreach my $d (@$linear_refs) {
my %parentshash;
read_commit_parents(\%parentshash, $d);
my @realparents = @{$parentshash{$d}};
if ($#realparents > 0) {
# Merge commit
shift @realparents; # Remove/ignore first parent
foreach my $parent (@realparents) {
my ($branchurl, $svnrev, $paruuid) = cmt_metadata($parent);
unless (defined $paruuid) {
# A parent is missing SVN annotations...
# abort the whole operation.
fatal "$parent is merged into revision $d, "
."but does not have git-svn metadata. "
."Either dcommit the branch or use a "
."local cherry-pick, FF merge, or rebase "
."instead of an explicit merge commit.";
}
unless ($paruuid eq $uuid) {
# Parent has SVN metadata from different repository
fatal "merge parent $parent for change $d has "
."git-svn uuid $paruuid, while current change "
."has uuid $uuid!";
}
unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
# This branch is very strange indeed.
fatal "merge parent $parent for $d is on branch "
."$branchurl, which is not under the "
."git-svn root $rooturl!";
}
}
}
}
}
my $rewritten_parent;
my $current_head = command_oneline(qw/rev-parse HEAD/);
Git::SVN::remove_username($expect_url);
if (defined($_merge_info)) {
$_merge_info =~ tr{ }{\n};
}
while (1) {
my $d = shift @$linear_refs or last;
unless (defined $last_rev) {
(undef, $last_rev, undef) = cmt_metadata("$d~1");
unless (defined $last_rev) {
fatal "Unable to extract revision information ",
"from commit $d~1";
}
}
if ($_dry_run) {
print "diff-tree $d~1 $d\n";
} else {
my $cmt_rev;
unless (defined($_merge_info) || ! $push_merge_info) {
$_merge_info = populate_merge_info($d, $gs,
$uuid,
$linear_refs,
$rewritten_parent);
}
my %ed_opts = ( r => $last_rev,
log => get_commit_entry($d)->{log},
ra => Git::SVN::Ra->new($url),