freshlybakedca.ke
Git fork
1#!/usr/bin/perl
2# Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3# License: GPL v2 or later
4require v5.26;
5use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : ();
6use strict;
7use vars qw/ $AUTHOR $VERSION
8 $oid $oid_short $oid_length
9 $_revision $_repository
10 $_q $_authors $_authors_prog %users/;
11$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
12$VERSION = '@GIT_VERSION@';
13
14use Carp qw/croak/;
15use File::Basename qw/dirname basename/;
16use File::Path qw/mkpath/;
17use File::Spec;
18use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
19use Memoize;
20
21use Git::SVN;
22use Git::SVN::Editor;
23use Git::SVN::Fetcher;
24use Git::SVN::Ra;
25use Git::SVN::Prompt;
26use Git::SVN::Log;
27use Git::SVN::Migration;
28
29use Git::SVN::Utils qw(
30 fatal
31 can_compress
32 canonicalize_path
33 canonicalize_url
34 join_paths
35 add_path_to_url
36 join_paths
37);
38
39use Git qw(
40 git_cmd_try
41 command
42 command_oneline
43 command_noisy
44 command_output_pipe
45 command_close_pipe
46 command_bidi_pipe
47 command_close_bidi_pipe
48 get_record
49);
50
51BEGIN {
52 Memoize::memoize 'Git::config';
53 Memoize::memoize 'Git::config_bool';
54}
55
56
57# From which subdir have we been invoked?
58my $cmd_dir_prefix = eval {
59 command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
60} || '';
61
62$Git::SVN::Ra::_log_window_size = 100;
63
64if (! exists $ENV{SVN_SSH} && exists $ENV{GIT_SSH}) {
65 $ENV{SVN_SSH} = $ENV{GIT_SSH};
66}
67
68if (exists $ENV{SVN_SSH} && $^O eq 'msys') {
69 $ENV{SVN_SSH} =~ s/\\/\\\\/g;
70 $ENV{SVN_SSH} =~ s/(.*)/"$1"/;
71}
72
73$Git::SVN::Log::TZ = $ENV{TZ};
74$ENV{TZ} = 'UTC';
75$| = 1; # unbuffer STDOUT
76
77# All SVN commands do it. Otherwise we may die on SIGPIPE when the remote
78# repository decides to close the connection which we expect to be kept alive.
79$SIG{PIPE} = 'IGNORE';
80
81# Given a dot separated version number, "subtract" it from
82# the SVN::Core::VERSION; non-negaitive return means the SVN::Core
83# is at least at the version the caller asked for.
84sub compare_svn_version {
85 my (@ours) = split(/\./, $SVN::Core::VERSION);
86 my (@theirs) = split(/\./, $_[0]);
87 my ($i, $diff);
88
89 for ($i = 0; $i < @ours && $i < @theirs; $i++) {
90 $diff = $ours[$i] - $theirs[$i];
91 return $diff if ($diff);
92 }
93 return 1 if ($i < @ours);
94 return -1 if ($i < @theirs);
95 return 0;
96}
97
98sub _req_svn {
99 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
100 require SVN::Ra;
101 require SVN::Delta;
102 if (::compare_svn_version('1.1.0') < 0) {
103 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
104 }
105}
106
107$oid = qr/(?:[a-f\d]{40}(?:[a-f\d]{24})?)/;
108$oid_short = qr/[a-f\d]{4,64}/;
109$oid_length = 40;
110my ($_stdin, $_help, $_edit,
111 $_message, $_file, $_branch_dest,
112 $_template, $_shared,
113 $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
114 $_before, $_after,
115 $_merge, $_strategy, $_rebase_merges, $_dry_run, $_parents, $_local,
116 $_prefix, $_no_checkout, $_url, $_verbose,
117 $_commit_url, $_tag, $_merge_info, $_interactive, $_set_svn_props);
118
119# This is a refactoring artifact so Git::SVN can get at this git-svn switch.
120sub opt_prefix { return $_prefix || '' }
121
122$Git::SVN::Fetcher::_placeholder_filename = ".gitignore";
123$_q ||= 0;
124my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
125 'config-dir=s' => \$Git::SVN::Ra::config_dir,
126 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
127 'ignore-paths=s' => \$Git::SVN::Fetcher::_ignore_regex,
128 'include-paths=s' => \$Git::SVN::Fetcher::_include_regex,
129 'ignore-refs=s' => \$Git::SVN::Ra::_ignore_refs_regex );
130my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
131 'authors-file|A=s' => \$_authors,
132 'authors-prog=s' => \$_authors_prog,
133 'repack:i' => \$Git::SVN::_repack,
134 'noMetadata' => \$Git::SVN::_no_metadata,
135 'useSvmProps' => \$Git::SVN::_use_svm_props,
136 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
137 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
138 'no-checkout' => \$_no_checkout,
139 'quiet|q+' => \$_q,
140 'repack-flags|repack-args|repack-opts=s' =>
141 \$Git::SVN::_repack_flags,
142 'use-log-author' => \$Git::SVN::_use_log_author,
143 'add-author-from' => \$Git::SVN::_add_author_from,
144 'localtime' => \$Git::SVN::_localtime,
145 %remote_opts );
146
147my ($_trunk, @_tags, @_branches, $_stdlayout);
148my %icv;
149my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
150 'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags,
151 'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix,
152 'stdlayout|s' => \$_stdlayout,
153 'minimize-url|m!' => \$Git::SVN::_minimize_url,
154 'no-metadata' => sub { $icv{noMetadata} = 1 },
155 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
156 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
157 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
158 'rewrite-uuid=s' => sub { $icv{rewriteUUID} = $_[1] },
159 %remote_opts );
160my %cmt_opts = ( 'edit|e' => \$_edit,
161 'rmdir' => \$Git::SVN::Editor::_rmdir,
162 'find-copies-harder' => \$Git::SVN::Editor::_find_copies_harder,
163 'l=i' => \$Git::SVN::Editor::_rename_limit,
164 'copy-similarity|C=i'=> \$Git::SVN::Editor::_cp_similarity
165);
166
167my %cmd = (
168 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
169 { 'revision|r=s' => \$_revision,
170 'fetch-all|all' => \$_fetch_all,
171 'parent|p' => \$_fetch_parent,
172 %fc_opts } ],
173 clone => [ \&cmd_clone, "Initialize and fetch revisions",
174 { 'revision|r=s' => \$_revision,
175 'preserve-empty-dirs' =>
176 \$Git::SVN::Fetcher::_preserve_empty_dirs,
177 'placeholder-filename=s' =>
178 \$Git::SVN::Fetcher::_placeholder_filename,
179 %fc_opts, %init_opts } ],
180 init => [ \&cmd_init, "Initialize a repo for tracking" .
181 " (requires URL argument)",
182 \%init_opts ],
183 'multi-init' => [ \&cmd_multi_init,
184 "Deprecated alias for ".
185 "'$0 init -T<trunk> -b<branches> -t<tags>'",
186 \%init_opts ],
187 dcommit => [ \&cmd_dcommit,
188 'Commit several diffs to merge with upstream',
189 { 'merge|m|M' => \$_merge,
190 'strategy|s=s' => \$_strategy,
191 'verbose|v' => \$_verbose,
192 'dry-run|n' => \$_dry_run,
193 'fetch-all|all' => \$_fetch_all,
194 'commit-url=s' => \$_commit_url,
195 'set-svn-props=s' => \$_set_svn_props,
196 'revision|r=i' => \$_revision,
197 'no-rebase' => \$_no_rebase,
198 'mergeinfo=s' => \$_merge_info,
199 'interactive|i' => \$_interactive,
200 %cmt_opts, %fc_opts } ],
201 branch => [ \&cmd_branch,
202 'Create a branch in the SVN repository',
203 { 'message|m=s' => \$_message,
204 'destination|d=s' => \$_branch_dest,
205 'dry-run|n' => \$_dry_run,
206 'parents' => \$_parents,
207 'tag|t' => \$_tag,
208 'username=s' => \$Git::SVN::Prompt::_username,
209 'commit-url=s' => \$_commit_url } ],
210 tag => [ sub { $_tag = 1; cmd_branch(@_) },
211 'Create a tag in the SVN repository',
212 { 'message|m=s' => \$_message,
213 'destination|d=s' => \$_branch_dest,
214 'dry-run|n' => \$_dry_run,
215 'parents' => \$_parents,
216 'username=s' => \$Git::SVN::Prompt::_username,
217 'commit-url=s' => \$_commit_url } ],
218 'set-tree' => [ \&cmd_set_tree,
219 "Set an SVN repository to a git tree-ish",
220 { 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ],
221 'create-ignore' => [ \&cmd_create_ignore,
222 "Create a .gitignore per directory with SVN ignore properties",
223 { 'revision|r=i' => \$_revision
224 } ],
225 'mkdirs' => [ \&cmd_mkdirs ,
226 "Recreate empty directories after a checkout",
227 { 'revision|r=i' => \$_revision } ],
228 'propget' => [ \&cmd_propget,
229 'Print the value of a property on a file or directory',
230 { 'revision|r=i' => \$_revision } ],
231 'propset' => [ \&cmd_propset,
232 'Set the value of a property on a file or directory - will be set on commit',
233 {} ],
234 'proplist' => [ \&cmd_proplist,
235 'List all properties of a file or directory',
236 { 'revision|r=i' => \$_revision } ],
237 'show-ignore' => [ \&cmd_show_ignore, "Show .gitignore patterns from SVN ignore properties",
238 { 'revision|r=i' => \$_revision
239 } ],
240 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
241 { 'revision|r=i' => \$_revision
242 } ],
243 'multi-fetch' => [ \&cmd_multi_fetch,
244 "Deprecated alias for $0 fetch --all",
245 { 'revision|r=s' => \$_revision, %fc_opts } ],
246 'migrate' => [ sub { },
247 # no-op, we automatically run this anyways,
248 'Migrate configuration/metadata/layout from
249 previous versions of git-svn',
250 { 'minimize' => \$Git::SVN::Migration::_minimize,
251 %remote_opts } ],
252 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
253 { 'limit=i' => \$Git::SVN::Log::limit,
254 'revision|r=s' => \$_revision,
255 'verbose|v' => \$Git::SVN::Log::verbose,
256 'incremental' => \$Git::SVN::Log::incremental,
257 'oneline' => \$Git::SVN::Log::oneline,
258 'show-commit' => \$Git::SVN::Log::show_commit,
259 'non-recursive' => \$Git::SVN::Log::non_recursive,
260 'authors-file|A=s' => \$_authors,
261 'color' => \$Git::SVN::Log::color,
262 'pager=s' => \$Git::SVN::Log::pager
263 } ],
264 'find-rev' => [ \&cmd_find_rev,
265 "Translate between SVN revision numbers and tree-ish",
266 { 'B|before' => \$_before,
267 'A|after' => \$_after } ],
268 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
269 { 'merge|m|M' => \$_merge,
270 'verbose|v' => \$_verbose,
271 'strategy|s=s' => \$_strategy,
272 'local|l' => \$_local,
273 'fetch-all|all' => \$_fetch_all,
274 'dry-run|n' => \$_dry_run,
275 'rebase-merges|p' => \$_rebase_merges,
276 %fc_opts } ],
277 'commit-diff' => [ \&cmd_commit_diff,
278 'Commit a diff between two trees',
279 { 'message|m=s' => \$_message,
280 'file|F=s' => \$_file,
281 'revision|r=s' => \$_revision,
282 %cmt_opts } ],
283 'info' => [ \&cmd_info,
284 "Show info about the latest SVN revision
285 on the current branch",
286 { 'url' => \$_url, } ],
287 'blame' => [ \&Git::SVN::Log::cmd_blame,
288 "Show what revision and author last modified each line of a file",
289 { 'git-format' => \$Git::SVN::Log::_git_format } ],
290 'reset' => [ \&cmd_reset,
291 "Undo fetches back to the specified SVN revision",
292 { 'revision|r=s' => \$_revision,
293 'parent|p' => \$_fetch_parent } ],
294 'gc' => [ \&cmd_gc,
295 "Compress unhandled.log files in .git/svn and remove " .
296 "index files in .git/svn",
297 {} ],
298);
299
300my $term;
301sub term_init {
302 require Term::ReadLine;
303 $term = $ENV{"GIT_SVN_NOTTY"}
304 ? new Term::ReadLine 'git-svn', \*STDIN, \*STDOUT
305 : new Term::ReadLine 'git-svn';
306}
307
308my $cmd;
309for (my $i = 0; $i < @ARGV; $i++) {
310 if (defined $cmd{$ARGV[$i]}) {
311 $cmd = $ARGV[$i];
312 splice @ARGV, $i, 1;
313 last;
314 } elsif ($ARGV[$i] eq 'help') {
315 $cmd = $ARGV[$i+1];
316 usage(0);
317 }
318};
319
320# make sure we're always running at the top-level working directory
321if ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
322 $ENV{GIT_DIR} ||= ".git";
323 # catch the submodule case
324 if (-f $ENV{GIT_DIR}) {
325 open(my $fh, '<', $ENV{GIT_DIR}) or
326 die "failed to open $ENV{GIT_DIR}: $!\n";
327 $ENV{GIT_DIR} = $1 if <$fh> =~ /^gitdir: (.+)$/;
328 }
329} elsif ($cmd) {
330 my ($git_dir, $cdup);
331 git_cmd_try {
332 $git_dir = command_oneline([qw/rev-parse --git-dir/]);
333 } "Unable to find .git directory\n";
334 git_cmd_try {
335 $cdup = command_oneline(qw/rev-parse --show-cdup/);
336 chomp $cdup if ($cdup);
337 $cdup = "." unless ($cdup && length $cdup);
338 } "Already at toplevel, but $git_dir not found\n";
339 $ENV{GIT_DIR} = $git_dir;
340 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
341 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
342}
343
344my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
345
346read_git_config(\%opts) if $ENV{GIT_DIR};
347if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
348 Getopt::Long::Configure('pass_through');
349}
350my $rv = GetOptions(%opts, 'h|H' => \$_help, 'version|V' => \$_version,
351 'minimize-connections' => \$Git::SVN::Migration::_minimize,
352 'id|i=s' => \$Git::SVN::default_ref_id,
353 'svn-remote|remote|R=s' => sub {
354 $Git::SVN::no_reuse_existing = 1;
355 $Git::SVN::default_repo_id = $_[1] });
356exit 1 if (!$rv && $cmd && $cmd ne 'log');
357
358usage(0) if $_help;
359version() if $_version;
360usage(1) unless defined $cmd;
361load_authors() if $_authors;
362if (defined $_authors_prog) {
363 my $abs_file = File::Spec->rel2abs($_authors_prog);
364 $_authors_prog = "'" . $abs_file . "'" if -x $abs_file;
365}
366
367unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
368 Git::SVN::Migration::migration_check();
369}
370Git::SVN::init_vars();
371eval {
372 Git::SVN::verify_remotes_sanity();
373 $cmd{$cmd}->[0]->(@ARGV);
374 post_fetch_checkout();
375};
376fatal $@ if $@;
377exit 0;
378
379####################### primary functions ######################
380sub usage {
381 my $exit = shift || 0;
382 my $fd = $exit ? \*STDERR : \*STDOUT;
383 print $fd <<"";
384git-svn - bidirectional operations between a single Subversion tree and git
385usage: git svn <command> [options] [arguments]\n
386
387 print $fd "Available commands:\n" unless $cmd;
388
389 foreach (sort keys %cmd) {
390 next if $cmd && $cmd ne $_;
391 next if /^multi-/; # don't show deprecated commands
392 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
393 foreach (sort keys %{$cmd{$_}->[2]}) {
394 # mixed-case options are for .git/config only
395 next if /[A-Z]/ && /^[a-z]+$/i;
396 # prints out arguments as they should be passed:
397 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
398 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
399 "--$_" : "-$_" }
400 split /\|/,$_)," $x\n";
401 }
402 }
403 print $fd <<"";
404\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
405arbitrary identifier if you're tracking multiple SVN branches/repositories in
406one git repository and want to keep them separate. See git-svn(1) for more
407information.
408
409 exit $exit;
410}
411
412sub version {
413 ::_req_svn();
414 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
415 exit 0;
416}
417
418sub ask {
419 my ($prompt, %arg) = @_;
420 my $valid_re = $arg{valid_re};
421 my $default = $arg{default};
422 my $resp;
423 my $i = 0;
424 term_init() unless $term;
425
426 if ( !( defined($term->IN)
427 && defined( fileno($term->IN) )
428 && defined( $term->OUT )
429 && defined( fileno($term->OUT) ) ) ){
430 return defined($default) ? $default : undef;
431 }
432
433 while ($i++ < 10) {
434 $resp = $term->readline($prompt);
435 if (!defined $resp) { # EOF
436 print "\n";
437 return defined $default ? $default : undef;
438 }
439 if ($resp eq '' and defined $default) {
440 return $default;
441 }
442 if (!defined $valid_re or $resp =~ /$valid_re/) {
443 return $resp;
444 }
445 }
446 return undef;
447}
448
449sub do_git_init_db {
450 unless (-d $ENV{GIT_DIR}) {
451 my @init_db = ('init');
452 push @init_db, "--template=$_template" if defined $_template;
453 if (defined $_shared) {
454 if ($_shared =~ /[a-z]/) {
455 push @init_db, "--shared=$_shared";
456 } else {
457 push @init_db, "--shared";
458 }
459 }
460 command_noisy(@init_db);
461 $_repository = Git->repository(Repository => ".git");
462 }
463 my $set;
464 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
465 foreach my $i (keys %icv) {
466 die "'$set' and '$i' cannot both be set\n" if $set;
467 next unless defined $icv{$i};
468 command_noisy('config', "$pfx.$i", $icv{$i});
469 $set = $i;
470 }
471 my $ignore_paths_regex = \$Git::SVN::Fetcher::_ignore_regex;
472 command_noisy('config', "$pfx.ignore-paths", $$ignore_paths_regex)
473 if defined $$ignore_paths_regex;
474 my $include_paths_regex = \$Git::SVN::Fetcher::_include_regex;
475 command_noisy('config', "$pfx.include-paths", $$include_paths_regex)
476 if defined $$include_paths_regex;
477 my $ignore_refs_regex = \$Git::SVN::Ra::_ignore_refs_regex;
478 command_noisy('config', "$pfx.ignore-refs", $$ignore_refs_regex)
479 if defined $$ignore_refs_regex;
480
481 if (defined $Git::SVN::Fetcher::_preserve_empty_dirs) {
482 my $fname = \$Git::SVN::Fetcher::_placeholder_filename;
483 command_noisy('config', "$pfx.preserve-empty-dirs", 'true');
484 command_noisy('config', "$pfx.placeholder-filename", $$fname);
485 }
486 load_object_format();
487}
488
489sub init_subdir {
490 my $repo_path = shift or return;
491 mkpath([$repo_path]) unless -d $repo_path;
492 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
493 $ENV{GIT_DIR} = '.git';
494 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
495}
496
497sub cmd_clone {
498 my ($url, $path) = @_;
499 if (!$url) {
500 die "SVN repository location required ",
501 "as a command-line argument\n";
502 } elsif (!defined $path &&
503 (defined $_trunk || @_branches || @_tags ||
504 defined $_stdlayout) &&
505 $url !~ m#^[a-z\+]+://#) {
506 $path = $url;
507 }
508 $path = basename($url) if !defined $path || !length $path;
509 my $authors_absolute = $_authors ? File::Spec->rel2abs($_authors) : "";
510 cmd_init($url, $path);
511 command_oneline('config', 'svn.authorsfile', $authors_absolute)
512 if $_authors;
513 Git::SVN::fetch_all($Git::SVN::default_repo_id);
514}
515
516sub cmd_init {
517 if (defined $_stdlayout) {
518 $_trunk = 'trunk' if (!defined $_trunk);
519 @_tags = 'tags' if (! @_tags);
520 @_branches = 'branches' if (! @_branches);
521 }
522 if (defined $_trunk || @_branches || @_tags) {
523 return cmd_multi_init(@_);
524 }
525 my $url = shift or die "SVN repository location required ",
526 "as a command-line argument\n";
527 $url = canonicalize_url($url);
528 init_subdir(@_);
529 do_git_init_db();
530
531 if ($Git::SVN::_minimize_url eq 'unset') {
532 $Git::SVN::_minimize_url = 0;
533 }
534
535 Git::SVN->init($url);
536}
537
538sub cmd_fetch {
539 if (grep /^\d+=./, @_) {
540 die "'<rev>=<commit>' fetch arguments are ",
541 "no longer supported.\n";
542 }
543 my ($remote) = @_;
544 if (@_ > 1) {
545 die "usage: $0 fetch [--all] [--parent] [svn-remote]\n";
546 }
547 $Git::SVN::no_reuse_existing = undef;
548 if ($_fetch_parent) {
549 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
550 unless ($gs) {
551 die "Unable to determine upstream SVN information from ",
552 "working tree history\n";
553 }
554 # just fetch, don't checkout.
555 $_no_checkout = 'true';
556 $_fetch_all ? $gs->fetch_all : $gs->fetch;
557 } elsif ($_fetch_all) {
558 cmd_multi_fetch();
559 } else {
560 $remote ||= $Git::SVN::default_repo_id;
561 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
562 }
563}
564
565sub cmd_set_tree {
566 my (@commits) = @_;
567 if ($_stdin || !@commits) {
568 print "Reading from stdin...\n";
569 @commits = ();
570 while (<STDIN>) {
571 if (/\b($oid_short)\b/o) {
572 unshift @commits, $1;
573 }
574 }
575 }
576 my @revs;
577 foreach my $c (@commits) {
578 my @tmp = command('rev-parse',$c);
579 if (scalar @tmp == 1) {
580 push @revs, $tmp[0];
581 } elsif (scalar @tmp > 1) {
582 push @revs, reverse(command('rev-list',@tmp));
583 } else {
584 fatal "Failed to rev-parse $c";
585 }
586 }
587 my $gs = Git::SVN->new;
588 my ($r_last, $cmt_last) = $gs->last_rev_commit;
589 $gs->fetch;
590 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
591 fatal "There are new revisions that were fetched ",
592 "and need to be merged (or acknowledged) ",
593 "before committing.\nlast rev: $r_last\n",
594 " current: $gs->{last_rev}";
595 }
596 $gs->set_tree($_) foreach @revs;
597 print "Done committing ",scalar @revs," revisions to SVN\n";
598 unlink $gs->{index};
599}
600
601sub split_merge_info_range {
602 my ($range) = @_;
603 if ($range =~ /(\d+)-(\d+)/) {
604 return (int($1), int($2));
605 } else {
606 return (int($range), int($range));
607 }
608}
609
610sub combine_ranges {
611 my ($in) = @_;
612
613 my @fnums = ();
614 my @arr = split(/,/, $in);
615 for my $element (@arr) {
616 my ($start, $end) = split_merge_info_range($element);
617 push @fnums, $start;
618 }
619
620 my @sorted = @arr [ sort {
621 $fnums[$a] <=> $fnums[$b]
622 } 0..$#arr ];
623
624 my @return = ();
625 my $last = -1;
626 my $first = -1;
627 for my $element (@sorted) {
628 my ($start, $end) = split_merge_info_range($element);
629
630 if ($last == -1) {
631 $first = $start;
632 $last = $end;
633 next;
634 }
635 if ($start <= $last+1) {
636 if ($end > $last) {
637 $last = $end;
638 }
639 next;
640 }
641 if ($first == $last) {
642 push @return, "$first";
643 } else {
644 push @return, "$first-$last";
645 }
646 $first = $start;
647 $last = $end;
648 }
649
650 if ($first != -1) {
651 if ($first == $last) {
652 push @return, "$first";
653 } else {
654 push @return, "$first-$last";
655 }
656 }
657
658 return join(',', @return);
659}
660
661sub merge_revs_into_hash {
662 my ($hash, $minfo) = @_;
663 my @lines = split(' ', $minfo);
664
665 for my $line (@lines) {
666 my ($branchpath, $revs) = split(/:/, $line);
667
668 if (exists($hash->{$branchpath})) {
669 # Merge the two revision sets
670 my $combined = "$hash->{$branchpath},$revs";
671 $hash->{$branchpath} = combine_ranges($combined);
672 } else {
673 # Just do range combining for consolidation
674 $hash->{$branchpath} = combine_ranges($revs);
675 }
676 }
677}
678
679sub merge_merge_info {
680 my ($mergeinfo_one, $mergeinfo_two, $ignore_branch) = @_;
681 my %result_hash = ();
682
683 merge_revs_into_hash(\%result_hash, $mergeinfo_one);
684 merge_revs_into_hash(\%result_hash, $mergeinfo_two);
685
686 delete $result_hash{$ignore_branch} if $ignore_branch;
687
688 my $result = '';
689 # Sort below is for consistency's sake
690 for my $branchname (sort keys(%result_hash)) {
691 my $revlist = $result_hash{$branchname};
692 $result .= "$branchname:$revlist\n"
693 }
694 return $result;
695}
696
697sub populate_merge_info {
698 my ($d, $gs, $uuid, $linear_refs, $rewritten_parent) = @_;
699
700 my %parentshash;
701 read_commit_parents(\%parentshash, $d);
702 my @parents = @{$parentshash{$d}};
703 if ($#parents > 0) {
704 # Merge commit
705 my $all_parents_ok = 1;
706 my $aggregate_mergeinfo = '';
707 my $rooturl = $gs->repos_root;
708 my ($target_branch) = $gs->full_pushurl =~ /^\Q$rooturl\E(.*)/;
709
710 if (defined($rewritten_parent)) {
711 # Replace first parent with newly-rewritten version
712 shift @parents;
713 unshift @parents, $rewritten_parent;
714 }
715
716 foreach my $parent (@parents) {
717 my ($branchurl, $svnrev, $paruuid) =
718 cmt_metadata($parent);
719
720 unless (defined($svnrev)) {
721 # Should have been caught be preflight check
722 fatal "merge commit $d has ancestor $parent, but that change "
723 ."does not have git-svn metadata!";
724 }
725 unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
726 fatal "commit $parent git-svn metadata changed mid-run!";
727 }
728 my $branchpath = $1;
729
730 my $ra = Git::SVN::Ra->new($branchurl);
731 my (undef, undef, $props) =
732 $ra->get_dir(canonicalize_path("."), $svnrev);
733 my $par_mergeinfo = $props->{'svn:mergeinfo'};
734 unless (defined $par_mergeinfo) {
735 $par_mergeinfo = '';
736 }
737 # Merge previous mergeinfo values
738 $aggregate_mergeinfo =
739 merge_merge_info($aggregate_mergeinfo,
740 $par_mergeinfo,
741 $target_branch);
742
743 next if $parent eq $parents[0]; # Skip first parent
744 # Add new changes being placed in tree by merge
745 my @cmd = (qw/rev-list --reverse/,
746 $parent, qw/--not/);
747 foreach my $par (@parents) {
748 unless ($par eq $parent) {
749 push @cmd, $par;
750 }
751 }
752 my @revsin = ();
753 my ($revlist, $ctx) = command_output_pipe(@cmd);
754 while (<$revlist>) {
755 my $irev = $_;
756 chomp $irev;
757 my (undef, $csvnrev, undef) =
758 cmt_metadata($irev);
759 unless (defined $csvnrev) {
760 # A child is missing SVN annotations...
761 # this might be OK, or might not be.
762 warn "W:child $irev is merged into revision "
763 ."$d but does not have git-svn metadata. "
764 ."This means git-svn cannot determine the "
765 ."svn revision numbers to place into the "
766 ."svn:mergeinfo property. You must ensure "
767 ."a branch is entirely committed to "
768 ."SVN before merging it in order for "
769 ."svn:mergeinfo population to function "
770 ."properly";
771 }
772 push @revsin, $csvnrev;
773 }
774 command_close_pipe($revlist, $ctx);
775
776 last unless $all_parents_ok;
777
778 # We now have a list of all SVN revnos which are
779 # merged by this particular parent. Integrate them.
780 next if $#revsin == -1;
781 my $newmergeinfo = "$branchpath:" . join(',', @revsin);
782 $aggregate_mergeinfo =
783 merge_merge_info($aggregate_mergeinfo,
784 $newmergeinfo,
785 $target_branch);
786 }
787 if ($all_parents_ok and $aggregate_mergeinfo) {
788 return $aggregate_mergeinfo;
789 }
790 }
791
792 return undef;
793}
794
795sub dcommit_rebase {
796 my ($is_last, $current, $fetched_ref, $svn_error) = @_;
797 my @diff;
798
799 if ($svn_error) {
800 print STDERR "\nERROR from SVN:\n",
801 $svn_error->expanded_message, "\n";
802 }
803 unless ($_no_rebase) {
804 # we always want to rebase against the current HEAD,
805 # not any head that was passed to us
806 @diff = command('diff-tree', $current,
807 $fetched_ref, '--');
808 my @finish;
809 if (@diff) {
810 @finish = rebase_cmd();
811 print STDERR "W: $current and ", $fetched_ref,
812 " differ, using @finish:\n",
813 join("\n", @diff), "\n";
814 } elsif ($is_last) {
815 print "No changes between ", $current, " and ",
816 $fetched_ref,
817 "\nResetting to the latest ",
818 $fetched_ref, "\n";
819 @finish = qw/reset --mixed/;
820 }
821 command_noisy(@finish, $fetched_ref) if @finish;
822 }
823 if ($svn_error) {
824 die "ERROR: Not all changes have been committed into SVN"
825 .($_no_rebase ? ".\n" : ", however the committed\n"
826 ."ones (if any) seem to be successfully integrated "
827 ."into the working tree.\n")
828 ."Please see the above messages for details.\n";
829 }
830 return @diff;
831}
832
833sub cmd_dcommit {
834 my $head = shift;
835 command_noisy(qw/update-index --refresh/);
836 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD --/) }
837 'Cannot dcommit with a dirty index. Commit your changes first, '
838 . "or stash them with `git stash'.\n";
839 $head ||= 'HEAD';
840
841 my $old_head;
842 if ($head ne 'HEAD') {
843 $old_head = eval {
844 command_oneline([qw/symbolic-ref -q HEAD/])
845 };
846 if ($old_head) {
847 $old_head =~ s{^refs/heads/}{};
848 } else {
849 $old_head = eval { command_oneline(qw/rev-parse HEAD/) };
850 }
851 command(['checkout', $head], STDERR => 0);
852 }
853
854 my @refs;
855 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
856 unless ($gs) {
857 die "Unable to determine upstream SVN information from ",
858 "$head history.\nPerhaps the repository is empty.";
859 }
860
861 if (defined $_commit_url) {
862 $url = $_commit_url;
863 } else {
864 $url = eval { command_oneline('config', '--get',
865 "svn-remote.$gs->{repo_id}.commiturl") };
866 if (!$url) {
867 $url = $gs->full_pushurl
868 }
869 }
870
871 my $last_rev = $_revision if defined $_revision;
872 if ($url) {
873 print "Committing to $url ...\n";
874 }
875 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
876 if ($_no_rebase && scalar(@$linear_refs) > 1) {
877 warn "Attempting to commit more than one change while ",
878 "--no-rebase is enabled.\n",
879 "If these changes depend on each other, re-running ",
880 "without --no-rebase may be required."
881 }
882
883 if (defined $_interactive){
884 my $ask_default = "y";
885 foreach my $d (@$linear_refs){
886 my ($fh, $ctx) = command_output_pipe(qw(show --summary), "$d");
887 while (<$fh>){
888 print $_;
889 }
890 command_close_pipe($fh, $ctx);
891 $_ = ask("Commit this patch to SVN? ([y]es (default)|[n]o|[q]uit|[a]ll): ",
892 valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
893 default => $ask_default);
894 die "Commit this patch reply required" unless defined $_;
895 if (/^[nq]/i) {
896 exit(0);
897 } elsif (/^a/i) {
898 last;
899 }
900 }
901 }
902
903 my $expect_url = $url;
904
905 my $push_merge_info = eval {
906 command_oneline(qw/config --get svn.pushmergeinfo/)
907 };
908 if (not defined($push_merge_info)
909 or $push_merge_info eq "false"
910 or $push_merge_info eq "no"
911 or $push_merge_info eq "never") {
912 $push_merge_info = 0;
913 }
914
915 unless (defined($_merge_info) || ! $push_merge_info) {
916 # Preflight check of changes to ensure no issues with mergeinfo
917 # This includes check for uncommitted-to-SVN parents
918 # (other than the first parent, which we will handle),
919 # information from different SVN repos, and paths
920 # which are not underneath this repository root.
921 my $rooturl = $gs->repos_root;
922 Git::SVN::remove_username($rooturl);
923 foreach my $d (@$linear_refs) {
924 my %parentshash;
925 read_commit_parents(\%parentshash, $d);
926 my @realparents = @{$parentshash{$d}};
927 if ($#realparents > 0) {
928 # Merge commit
929 shift @realparents; # Remove/ignore first parent
930 foreach my $parent (@realparents) {
931 my ($branchurl, $svnrev, $paruuid) = cmt_metadata($parent);
932 unless (defined $paruuid) {
933 # A parent is missing SVN annotations...
934 # abort the whole operation.
935 fatal "$parent is merged into revision $d, "
936 ."but does not have git-svn metadata. "
937 ."Either dcommit the branch or use a "
938 ."local cherry-pick, FF merge, or rebase "
939 ."instead of an explicit merge commit.";
940 }
941
942 unless ($paruuid eq $uuid) {
943 # Parent has SVN metadata from different repository
944 fatal "merge parent $parent for change $d has "
945 ."git-svn uuid $paruuid, while current change "
946 ."has uuid $uuid!";
947 }
948
949 unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
950 # This branch is very strange indeed.
951 fatal "merge parent $parent for $d is on branch "
952 ."$branchurl, which is not under the "
953 ."git-svn root $rooturl!";
954 }
955 }
956 }
957 }
958 }
959
960 my $rewritten_parent;
961 my $current_head = command_oneline(qw/rev-parse HEAD/);
962 Git::SVN::remove_username($expect_url);
963 if (defined($_merge_info)) {
964 $_merge_info =~ tr{ }{\n};
965 }
966 while (1) {
967 my $d = shift @$linear_refs or last;
968 unless (defined $last_rev) {
969 (undef, $last_rev, undef) = cmt_metadata("$d~1");
970 unless (defined $last_rev) {
971 fatal "Unable to extract revision information ",
972 "from commit $d~1";
973 }
974 }
975 if ($_dry_run) {
976 print "diff-tree $d~1 $d\n";
977 } else {
978 my $cmt_rev;
979
980 unless (defined($_merge_info) || ! $push_merge_info) {
981 $_merge_info = populate_merge_info($d, $gs,
982 $uuid,
983 $linear_refs,
984 $rewritten_parent);
985 }
986
987 my %ed_opts = ( r => $last_rev,
988 log => get_commit_entry($d)->{log},
989 ra => Git::SVN::Ra->new($url),
990 config => SVN::Core::config_get_config(
991 $Git::SVN::Ra::config_dir
992 ),
993 tree_a => "$d~1",
994 tree_b => $d,
995 editor_cb => sub {
996 print "Committed r$_[0]\n";
997 $cmt_rev = $_[0];
998 },
999 mergeinfo => $_merge_info,
1000 svn_path => '');
1001
1002 my $err_handler = $SVN::Error::handler;
1003 $SVN::Error::handler = sub {
1004 my $err = shift;
1005 dcommit_rebase(1, $current_head, $gs->refname,
1006 $err);
1007 };
1008
1009 if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
1010 print "No changes\n$d~1 == $d\n";
1011 } elsif ($parents->{$d} && @{$parents->{$d}}) {
1012 $gs->{inject_parents_dcommit}->{$cmt_rev} =
1013 $parents->{$d};
1014 }
1015 $_fetch_all ? $gs->fetch_all : $gs->fetch;
1016 $SVN::Error::handler = $err_handler;
1017 $last_rev = $cmt_rev;
1018 next if $_no_rebase;
1019
1020 my @diff = dcommit_rebase(@$linear_refs == 0, $d,
1021 $gs->refname, undef);
1022
1023 $rewritten_parent = command_oneline(qw/rev-parse/,
1024 $gs->refname);
1025
1026 if (@diff) {
1027 $current_head = command_oneline(qw/rev-parse
1028 HEAD/);
1029 @refs = ();
1030 my ($url_, $rev_, $uuid_, $gs_) =
1031 working_head_info('HEAD', \@refs);
1032 my ($linear_refs_, $parents_) =
1033 linearize_history($gs_, \@refs);
1034 if (scalar(@$linear_refs) !=
1035 scalar(@$linear_refs_)) {
1036 fatal "# of revisions changed ",
1037 "\nbefore:\n",
1038 join("\n", @$linear_refs),
1039 "\n\nafter:\n",
1040 join("\n", @$linear_refs_), "\n",
1041 'If you are attempting to commit ',
1042 "merges, try running:\n\t",
1043 'git rebase --interactive',
1044 '--rebase-merges ',
1045 $gs->refname,
1046 "\nBefore dcommitting";
1047 }
1048 if ($url_ ne $expect_url) {
1049 if ($url_ eq $gs->metadata_url) {
1050 print
1051 "Accepting rewritten URL:",
1052 " $url_\n";
1053 } else {
1054 fatal
1055 "URL mismatch after rebase:",
1056 " $url_ != $expect_url";
1057 }
1058 }
1059 if ($uuid_ ne $uuid) {
1060 fatal "uuid mismatch after rebase: ",
1061 "$uuid_ != $uuid";
1062 }
1063 # remap parents
1064 my (%p, @l, $i);
1065 for ($i = 0; $i < scalar @$linear_refs; $i++) {
1066 my $new = $linear_refs_->[$i] or next;
1067 $p{$new} =
1068 $parents->{$linear_refs->[$i]};
1069 push @l, $new;
1070 }
1071 $parents = \%p;
1072 $linear_refs = \@l;
1073 undef $last_rev;
1074 }
1075 }
1076 }
1077
1078 if ($old_head) {
1079 my $new_head = command_oneline(qw/rev-parse HEAD/);
1080 my $new_is_symbolic = eval {
1081 command_oneline(qw/symbolic-ref -q HEAD/);
1082 };
1083 if ($new_is_symbolic) {
1084 print "dcommitted the branch ", $head, "\n";
1085 } else {
1086 print "dcommitted on a detached HEAD because you gave ",
1087 "a revision argument.\n",
1088 "The rewritten commit is: ", $new_head, "\n";
1089 }
1090 command(['checkout', $old_head], STDERR => 0);
1091 }
1092
1093 unlink $gs->{index};
1094}
1095
1096sub cmd_branch {
1097 my ($branch_name, $head) = @_;
1098
1099 unless (defined $branch_name && length $branch_name) {
1100 die(($_tag ? "tag" : "branch") . " name required\n");
1101 }
1102 $head ||= 'HEAD';
1103
1104 my (undef, $rev, undef, $gs) = working_head_info($head);
1105 my $src = $gs->full_pushurl;
1106
1107 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
1108 my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
1109 my $glob;
1110 if ($#{$allglobs} == 0) {
1111 $glob = $allglobs->[0];
1112 } else {
1113 unless(defined $_branch_dest) {
1114 die "Multiple ",
1115 $_tag ? "tag" : "branch",
1116 " paths defined for Subversion repository.\n",
1117 "You must specify where you want to create the ",
1118 $_tag ? "tag" : "branch",
1119 " with the --destination argument.\n";
1120 }
1121 foreach my $g (@{$allglobs}) {
1122 my $re = Git::SVN::Editor::glob2pat($g->{path}->{left});
1123 if ($_branch_dest =~ /$re/) {
1124 $glob = $g;
1125 last;
1126 }
1127 }
1128 unless (defined $glob) {
1129 my $dest_re = qr/\b\Q$_branch_dest\E\b/;
1130 foreach my $g (@{$allglobs}) {
1131 $g->{path}->{left} =~ /$dest_re/ or next;
1132 if (defined $glob) {
1133 die "Ambiguous destination: ",
1134 $_branch_dest, "\nmatches both '",
1135 $glob->{path}->{left}, "' and '",
1136 $g->{path}->{left}, "'\n";
1137 }
1138 $glob = $g;
1139 }
1140 unless (defined $glob) {
1141 die "Unknown ",
1142 $_tag ? "tag" : "branch",
1143 " destination $_branch_dest\n";
1144 }
1145 }
1146 }
1147 my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
1148 my $url;
1149 if (defined $_commit_url) {
1150 $url = $_commit_url;
1151 } else {
1152 $url = eval { command_oneline('config', '--get',
1153 "svn-remote.$gs->{repo_id}.commiturl") };
1154 if (!$url) {
1155 $url = $remote->{pushurl} || $remote->{url};
1156 }
1157 }
1158 my $dst = join '/', $url, $lft, $branch_name, ($rgt || ());
1159
1160 if ($dst =~ /^https:/ && $src =~ /^http:/) {
1161 $src=~s/^http:/https:/;
1162 }
1163
1164 ::_req_svn();
1165 require SVN::Client;
1166
1167 my ($config, $baton, undef) = Git::SVN::Ra::prepare_config_once();
1168 my $ctx = SVN::Client->new(
1169 auth => $baton,
1170 config => $config,
1171 log_msg => sub {
1172 ${ $_[0] } = defined $_message
1173 ? $_message
1174 : 'Create ' . ($_tag ? 'tag ' : 'branch ' )
1175 . $branch_name;
1176 },
1177 );
1178
1179 eval {
1180 $ctx->ls($dst, 'HEAD', 0);
1181 } and die "branch ${branch_name} already exists\n";
1182
1183 if ($_parents) {
1184 mk_parent_dirs($ctx, $dst);
1185 }
1186
1187 print "Copying ${src} at r${rev} to ${dst}...\n";
1188 $ctx->copy($src, $rev, $dst)
1189 unless $_dry_run;
1190
1191 # Release resources held by ctx before creating another SVN::Ra
1192 # so destruction is orderly. This seems necessary with SVN 1.9.5
1193 # to avoid segfaults.
1194 $ctx = undef;
1195
1196 $gs->fetch_all;
1197}
1198
1199sub mk_parent_dirs {
1200 my ($ctx, $parent) = @_;
1201 $parent =~ s{/[^/]*$}{};
1202
1203 if (!eval{$ctx->ls($parent, 'HEAD', 0)}) {
1204 mk_parent_dirs($ctx, $parent);
1205 print "Creating parent folder ${parent} ...\n";
1206 $ctx->mkdir($parent) unless $_dry_run;
1207 }
1208}
1209
1210sub cmd_find_rev {
1211 my $revision_or_hash = shift or die "SVN or git revision required ",
1212 "as a command-line argument\n";
1213 my $result;
1214 if ($revision_or_hash =~ /^r\d+$/) {
1215 my $head = shift;
1216 $head ||= 'HEAD';
1217 my @refs;
1218 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
1219 unless ($gs) {
1220 die "Unable to determine upstream SVN information from ",
1221 "$head history\n";
1222 }
1223 my $desired_revision = substr($revision_or_hash, 1);
1224 if ($_before) {
1225 $result = $gs->find_rev_before($desired_revision, 1);
1226 } elsif ($_after) {
1227 $result = $gs->find_rev_after($desired_revision, 1);
1228 } else {
1229 $result = $gs->rev_map_get($desired_revision, $uuid);
1230 }
1231 } else {
1232 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
1233 $result = $rev;
1234 }
1235 print "$result\n" if $result;
1236}
1237
1238sub auto_create_empty_directories {
1239 my ($gs) = @_;
1240 my $var = eval { command_oneline('config', '--get', '--bool',
1241 "svn-remote.$gs->{repo_id}.automkdirs") };
1242 # By default, create empty directories by consulting the unhandled log,
1243 # but allow setting it to 'false' to skip it.
1244 return !($var && $var eq 'false');
1245}
1246
1247sub cmd_rebase {
1248 command_noisy(qw/update-index --refresh/);
1249 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1250 unless ($gs) {
1251 die "Unable to determine upstream SVN information from ",
1252 "working tree history\n";
1253 }
1254 if ($_dry_run) {
1255 print "Remote Branch: " . $gs->refname . "\n";
1256 print "SVN URL: " . $url . "\n";
1257 return;
1258 }
1259 if (command(qw/diff-index HEAD --/)) {
1260 print STDERR "Cannot rebase with uncommitted changes:\n";
1261 command_noisy('status');
1262 exit 1;
1263 }
1264 unless ($_local) {
1265 # rebase will checkout for us, so no need to do it explicitly
1266 $_no_checkout = 'true';
1267 $_fetch_all ? $gs->fetch_all : $gs->fetch;
1268 }
1269 command_noisy(rebase_cmd(), $gs->refname);
1270 if (auto_create_empty_directories($gs)) {
1271 $gs->mkemptydirs;
1272 }
1273}
1274
1275sub cmd_show_ignore {
1276 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1277 $gs ||= Git::SVN->new;
1278 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1279 $gs->prop_walk($gs->path, $r, sub {
1280 my ($gs, $path, $props) = @_;
1281 print STDOUT "\n# $path\n";
1282 if (my $s = $props->{'svn:ignore'}) {
1283 $s =~ s/[\r\n]+/\n/g;
1284 $s =~ s/^\n+//;
1285 chomp $s;
1286 $s =~ s#^#$path#gm;
1287 print STDOUT "$s\n";
1288 }
1289 if (my $s = $props->{'svn:global-ignores'}) {
1290 $s =~ s/[\r\n]+/\n/g;
1291 $s =~ s/^\n+//;
1292 chomp $s;
1293 $s =~ s#^#$path**/#gm;
1294 print STDOUT "$s\n";
1295 }
1296 });
1297}
1298
1299sub cmd_show_externals {
1300 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1301 $gs ||= Git::SVN->new;
1302 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1303 $gs->prop_walk($gs->path, $r, sub {
1304 my ($gs, $path, $props) = @_;
1305 print STDOUT "\n# $path\n";
1306 my $s = $props->{'svn:externals'} or return;
1307 $s =~ s/[\r\n]+/\n/g;
1308 chomp $s;
1309 $s =~ s#^#$path#gm;
1310 print STDOUT "$s\n";
1311 });
1312}
1313
1314sub cmd_create_ignore {
1315 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1316 $gs ||= Git::SVN->new;
1317 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1318 $gs->prop_walk($gs->path, $r, sub {
1319 my ($gs, $path, $props) = @_;
1320 # $path is of the form /path/to/dir/
1321 $path = '.' . $path;
1322 # SVN can have attributes on empty directories,
1323 # which git won't track
1324 mkpath([$path]) unless -d $path;
1325 my $ignore = $path . '.gitignore';
1326 open(GITIGNORE, '>', $ignore)
1327 or fatal("Failed to open `$ignore' for writing: $!");
1328 if (my $s = $props->{'svn:ignore'}) {
1329 $s =~ s/[\r\n]+/\n/g;
1330 $s =~ s/^\n+//;
1331 chomp $s;
1332 # Prefix all patterns so that the ignore doesn't apply
1333 # to sub-directories.
1334 $s =~ s#^#/#gm;
1335 print GITIGNORE "$s\n";
1336 }
1337 if (my $s = $props->{'svn:global-ignores'}) {
1338 $s =~ s/[\r\n]+/\n/g;
1339 $s =~ s/^\n+//;
1340 chomp $s;
1341 # Global ignores apply to sub-directories, so they are
1342 # not prefixed.
1343 print GITIGNORE "$s\n";
1344 }
1345 close(GITIGNORE)
1346 or fatal("Failed to close `$ignore': $!");
1347 command_noisy('add', '-f', $ignore);
1348 });
1349}
1350
1351sub cmd_mkdirs {
1352 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1353 $gs ||= Git::SVN->new;
1354 $gs->mkemptydirs($_revision);
1355}
1356
1357# get_svnprops(PATH)
1358# ------------------
1359# Helper for cmd_propget and cmd_proplist below.
1360sub get_svnprops {
1361 my $path = shift;
1362 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1363 $gs ||= Git::SVN->new;
1364
1365 # prefix THE PATH by the sub-directory from which the user
1366 # invoked us.
1367 $path = $cmd_dir_prefix . $path;
1368 fatal("No such file or directory: $path") unless -e $path;
1369 my $is_dir = -d $path ? 1 : 0;
1370 $path = join_paths($gs->path, $path);
1371
1372 # canonicalize the path (otherwise libsvn will abort or fail to
1373 # find the file)
1374 $path = canonicalize_path($path);
1375
1376 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1377 my $props;
1378 if ($is_dir) {
1379 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
1380 }
1381 else {
1382 (undef, $props) = $gs->ra->get_file($path, $r, undef);
1383 }
1384 return $props;
1385}
1386
1387# cmd_propget (PROP, PATH)
1388# ------------------------
1389# Print the SVN property PROP for PATH.
1390sub cmd_propget {
1391 my ($prop, $path) = @_;
1392 $path = '.' if not defined $path;
1393 usage(1) if not defined $prop;
1394 my $props = get_svnprops($path);
1395 if (not defined $props->{$prop}) {
1396 fatal("`$path' does not have a `$prop' SVN property.");
1397 }
1398 print $props->{$prop} . "\n";
1399}
1400
1401# cmd_propset (PROPNAME, PROPVAL, PATH)
1402# ------------------------
1403# Adjust the SVN property PROPNAME to PROPVAL for PATH.
1404sub cmd_propset {
1405 my ($propname, $propval, $path) = @_;
1406 $path = '.' if not defined $path;
1407 $path = $cmd_dir_prefix . $path;
1408 usage(1) if not defined $propname;
1409 usage(1) if not defined $propval;
1410 my $file = basename($path);
1411 my $dn = dirname($path);
1412 my $cur_props = Git::SVN::Editor::check_attr( "svn-properties", $path );
1413 my @new_props;
1414 if (!$cur_props || $cur_props eq "unset" || $cur_props eq "" || $cur_props eq "set") {
1415 push @new_props, "$propname=$propval";
1416 } else {
1417 # TODO: handle combining properties better
1418 my @props = split(/;/, $cur_props);
1419 my $replaced_prop;
1420 foreach my $prop (@props) {
1421 # Parse 'name=value' syntax and set the property.
1422 if ($prop =~ /([^=]+)=(.*)/) {
1423 my ($n,$v) = ($1,$2);
1424 if ($n eq $propname) {
1425 $v = $propval;
1426 $replaced_prop = 1;
1427 }
1428 push @new_props, "$n=$v";
1429 }
1430 }
1431 if (!$replaced_prop) {
1432 push @new_props, "$propname=$propval";
1433 }
1434 }
1435 my $attrfile = "$dn/.gitattributes";
1436 open my $attrfh, '>>', $attrfile or die "Can't open $attrfile: $!\n";
1437 # TODO: don't simply append here if $file already has svn-properties
1438 my $new_props = join(';', @new_props);
1439 print $attrfh "$file svn-properties=$new_props\n" or
1440 die "write to $attrfile: $!\n";
1441 close $attrfh or die "close $attrfile: $!\n";
1442}
1443
1444# cmd_proplist (PATH)
1445# -------------------
1446# Print the list of SVN properties for PATH.
1447sub cmd_proplist {
1448 my $path = shift;
1449 $path = '.' if not defined $path;
1450 my $props = get_svnprops($path);
1451 print "Properties on '$path':\n";
1452 foreach (sort keys %{$props}) {
1453 print " $_\n";
1454 }
1455}
1456
1457sub cmd_multi_init {
1458 my $url = shift;
1459 unless (defined $_trunk || @_branches || @_tags) {
1460 usage(1);
1461 }
1462
1463 $_prefix = 'origin/' unless defined $_prefix;
1464 if (defined $url) {
1465 $url = canonicalize_url($url);
1466 init_subdir(@_);
1467 }
1468 do_git_init_db();
1469 if (defined $_trunk) {
1470 $_trunk =~ s#^/+##;
1471 my $trunk_ref = 'refs/remotes/' . $_prefix . 'trunk';
1472 # try both old-style and new-style lookups:
1473 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
1474 unless ($gs_trunk) {
1475 my ($trunk_url, $trunk_path) =
1476 complete_svn_url($url, $_trunk);
1477 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
1478 undef, $trunk_ref);
1479 }
1480 }
1481 return unless @_branches || @_tags;
1482 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
1483 foreach my $path (@_branches) {
1484 complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
1485 }
1486 foreach my $path (@_tags) {
1487 complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
1488 }
1489}
1490
1491sub cmd_multi_fetch {
1492 $Git::SVN::no_reuse_existing = undef;
1493 my $remotes = Git::SVN::read_all_remotes();
1494 foreach my $repo_id (sort keys %$remotes) {
1495 if ($remotes->{$repo_id}->{url}) {
1496 Git::SVN::fetch_all($repo_id, $remotes);
1497 }
1498 }
1499}
1500
1501# this command is special because it requires no metadata
1502sub cmd_commit_diff {
1503 my ($ta, $tb, $url) = @_;
1504 my $usage = "usage: $0 commit-diff -r<revision> ".
1505 "<tree-ish> <tree-ish> [<URL>]";
1506 fatal($usage) if (!defined $ta || !defined $tb);
1507 my $svn_path = '';
1508 if (!defined $url) {
1509 my $gs = eval { Git::SVN->new };
1510 if (!$gs) {
1511 fatal("Needed URL or usable git-svn --id in ",
1512 "the command-line\n", $usage);
1513 }
1514 $url = $gs->url;
1515 $svn_path = $gs->path;
1516 }
1517 unless (defined $_revision) {
1518 fatal("-r|--revision is a required argument\n", $usage);
1519 }
1520 if (defined $_message && defined $_file) {
1521 fatal("Both --message/-m and --file/-F specified ",
1522 "for the commit message.\n",
1523 "I have no idea what you mean");
1524 }
1525 if (defined $_file) {
1526 $_message = file_to_s($_file);
1527 } else {
1528 $_message ||= get_commit_entry($tb)->{log};
1529 }
1530 my $ra ||= Git::SVN::Ra->new($url);
1531 my $r = $_revision;
1532 if ($r eq 'HEAD') {
1533 $r = $ra->get_latest_revnum;
1534 } elsif ($r !~ /^\d+$/) {
1535 die "revision argument: $r not understood by git-svn\n";
1536 }
1537 my %ed_opts = ( r => $r,
1538 log => $_message,
1539 ra => $ra,
1540 tree_a => $ta,
1541 tree_b => $tb,
1542 editor_cb => sub { print "Committed r$_[0]\n" },
1543 svn_path => $svn_path );
1544 if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
1545 print "No changes\n$ta == $tb\n";
1546 }
1547}
1548
1549sub cmd_info {
1550 my $path_arg = defined($_[0]) ? $_[0] : '.';
1551 my $path = $path_arg;
1552 if (File::Spec->file_name_is_absolute($path)) {
1553 $path = canonicalize_path($path);
1554
1555 my $toplevel = eval {
1556 my @cmd = qw/rev-parse --show-toplevel/;
1557 command_oneline(\@cmd, STDERR => 0);
1558 };
1559
1560 # remove $toplevel from the absolute path:
1561 my ($vol, $dirs, $file) = File::Spec->splitpath($path);
1562 my (undef, $tdirs, $tfile) = File::Spec->splitpath($toplevel);
1563 my @dirs = File::Spec->splitdir($dirs);
1564 my @tdirs = File::Spec->splitdir($tdirs);
1565 pop @dirs if $dirs[-1] eq '';
1566 pop @tdirs if $tdirs[-1] eq '';
1567 push @dirs, $file;
1568 push @tdirs, $tfile;
1569 while (@tdirs && @dirs && $tdirs[0] eq $dirs[0]) {
1570 shift @dirs;
1571 shift @tdirs;
1572 }
1573 $dirs = File::Spec->catdir(@dirs);
1574 $path = File::Spec->catpath($vol, $dirs);
1575
1576 $path = canonicalize_path($path);
1577 } else {
1578 $path = canonicalize_path($cmd_dir_prefix . $path);
1579 }
1580 if (exists $_[1]) {
1581 die "Too many arguments specified\n";
1582 }
1583
1584 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
1585
1586 if (!$file_type && !$diff_status) {
1587 print STDERR "svn: '$path' is not under version control\n";
1588 exit 1;
1589 }
1590
1591 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1592 unless ($gs) {
1593 die "Unable to determine upstream SVN information from ",
1594 "working tree history\n";
1595 }
1596
1597 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
1598 $path = "." if $path eq "";
1599
1600 my $full_url = canonicalize_url( add_path_to_url( $url, $path ) );
1601
1602 if ($_url) {
1603 print "$full_url\n";
1604 return;
1605 }
1606
1607 my $result = "Path: $path_arg\n";
1608 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
1609 $result .= "URL: $full_url\n";
1610
1611 eval {
1612 my $repos_root = $gs->repos_root;
1613 Git::SVN::remove_username($repos_root);
1614 $result .= "Repository Root: " . canonicalize_url($repos_root) . "\n";
1615 };
1616 if ($@) {
1617 $result .= "Repository Root: (offline)\n";
1618 }
1619 ::_req_svn();
1620 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
1621 (::compare_svn_version('1.5.4') <= 0 || $file_type ne "dir");
1622 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
1623
1624 $result .= "Node Kind: " .
1625 ($file_type eq "dir" ? "directory" : "file") . "\n";
1626
1627 my $schedule = $diff_status eq "A"
1628 ? "add"
1629 : ($diff_status eq "D" ? "delete" : "normal");
1630 $result .= "Schedule: $schedule\n";
1631
1632 if ($diff_status eq "A") {
1633 print $result, "\n";
1634 return;
1635 }
1636
1637 my ($lc_author, $lc_rev, $lc_date_utc);
1638 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $path);
1639 my $log = command_output_pipe(@args);
1640 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
1641 while (<$log>) {
1642 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
1643 $lc_author = $1;
1644 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
1645 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
1646 (undef, $lc_rev, undef) = ::extract_metadata($1);
1647 }
1648 }
1649 close $log;
1650
1651 Git::SVN::Log::set_local_timezone();
1652
1653 $result .= "Last Changed Author: $lc_author\n";
1654 $result .= "Last Changed Rev: $lc_rev\n";
1655 $result .= "Last Changed Date: " .
1656 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
1657
1658 if ($file_type ne "dir") {
1659 my $text_last_updated_date =
1660 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
1661 $result .=
1662 "Text Last Updated: " .
1663 Git::SVN::Log::format_svn_date($text_last_updated_date) .
1664 "\n";
1665 my $checksum;
1666 if ($diff_status eq "D") {
1667 my ($fh, $ctx) =
1668 command_output_pipe(qw(cat-file blob), "HEAD:$path");
1669 if ($file_type eq "link") {
1670 my $file_name = <$fh>;
1671 $checksum = md5sum("link $file_name");
1672 } else {
1673 $checksum = md5sum($fh);
1674 }
1675 command_close_pipe($fh, $ctx);
1676 } elsif ($file_type eq "link") {
1677 my $file_name =
1678 command(qw(cat-file blob), "HEAD:$path");
1679 $checksum =
1680 md5sum("link " . $file_name);
1681 } else {
1682 open FILE, "<", $path or die $!;
1683 $checksum = md5sum(\*FILE);
1684 close FILE or die $!;
1685 }
1686 $result .= "Checksum: " . $checksum . "\n";
1687 }
1688
1689 print $result, "\n";
1690}
1691
1692sub cmd_reset {
1693 my $target = shift || $_revision or die "SVN revision required\n";
1694 $target = $1 if $target =~ /^r(\d+)$/;
1695 $target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
1696 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1697 unless ($gs) {
1698 die "Unable to determine upstream SVN information from ".
1699 "history\n";
1700 }
1701 my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
1702 die "Cannot find SVN revision $target\n" unless defined($c);
1703 $gs->rev_map_set($r, $c, 'reset', $uuid);
1704 print "r$r = $c ($gs->{ref_id})\n";
1705}
1706
1707sub cmd_gc {
1708 require File::Find;
1709 if (!can_compress()) {
1710 warn "Compress::Zlib could not be found; unhandled.log " .
1711 "files will not be compressed.\n";
1712 }
1713 File::Find::find({ wanted => \&gc_directory, no_chdir => 1},
1714 Git::SVN::svn_dir());
1715}
1716
1717########################### utility functions #########################
1718
1719sub rebase_cmd {
1720 my @cmd = qw/rebase/;
1721 push @cmd, '-v' if $_verbose;
1722 push @cmd, qw/--merge/ if $_merge;
1723 push @cmd, "--strategy=$_strategy" if $_strategy;
1724 push @cmd, "--rebase-merges" if $_rebase_merges;
1725 @cmd;
1726}
1727
1728sub post_fetch_checkout {
1729 return if $_no_checkout;
1730 return if verify_ref('HEAD^0');
1731 my $gs = $Git::SVN::_head or return;
1732
1733 # look for "trunk" ref if it exists
1734 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
1735 my $fetch = $remote->{fetch};
1736 if ($fetch) {
1737 foreach my $p (keys %$fetch) {
1738 basename($fetch->{$p}) eq 'trunk' or next;
1739 $gs = Git::SVN->new($fetch->{$p}, $gs->{repo_id}, $p);
1740 last;
1741 }
1742 }
1743
1744 command_noisy(qw(update-ref HEAD), $gs->refname);
1745 return unless verify_ref('HEAD^0');
1746
1747 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
1748 my $index = command_oneline(qw(rev-parse --git-path index));
1749 return if -f $index;
1750
1751 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
1752 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
1753 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
1754 print STDERR "Checked out HEAD:\n ",
1755 $gs->full_url, " r", $gs->last_rev, "\n";
1756 if (auto_create_empty_directories($gs)) {
1757 $gs->mkemptydirs($gs->last_rev);
1758 }
1759}
1760
1761sub complete_svn_url {
1762 my ($url, $path) = @_;
1763
1764 if ($path =~ m#^[a-z\+]+://#i) { # path is a URL
1765 $path = canonicalize_url($path);
1766 } else {
1767 $path = canonicalize_path($path);
1768 if (!defined $url || $url !~ m#^[a-z\+]+://#i) {
1769 fatal("E: '$path' is not a complete URL ",
1770 "and a separate URL is not specified");
1771 }
1772 return ($url, $path);
1773 }
1774 return ($path, '');
1775}
1776
1777sub complete_url_ls_init {
1778 my ($ra, $repo_path, $switch, $pfx) = @_;
1779 unless ($repo_path) {
1780 print STDERR "W: $switch not specified\n";
1781 return;
1782 }
1783 if ($repo_path =~ m#^[a-z\+]+://#i) {
1784 $repo_path = canonicalize_url($repo_path);
1785 $ra = Git::SVN::Ra->new($repo_path);
1786 $repo_path = '';
1787 } else {
1788 $repo_path = canonicalize_path($repo_path);
1789 $repo_path =~ s#^/+##;
1790 unless ($ra) {
1791 fatal("E: '$repo_path' is not a complete URL ",
1792 "and a separate URL is not specified");
1793 }
1794 }
1795 my $url = $ra->url;
1796 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
1797 my $k = "svn-remote.$gs->{repo_id}.url";
1798 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
1799 if ($orig_url && ($orig_url ne $gs->url)) {
1800 die "$k already set: $orig_url\n",
1801 "wanted to set to: $gs->url\n";
1802 }
1803 command_oneline('config', $k, $gs->url) unless $orig_url;
1804
1805 my $remote_path = join_paths( $gs->path, $repo_path );
1806 $remote_path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
1807 $remote_path =~ s#^/##g;
1808 $remote_path .= "/*" if $remote_path !~ /\*/;
1809 my ($n) = ($switch =~ /^--(\w+)/);
1810 if (length $pfx && $pfx !~ m#/$#) {
1811 die "--prefix='$pfx' must have a trailing slash '/'\n";
1812 }
1813 command_noisy('config',
1814 '--add',
1815 "svn-remote.$gs->{repo_id}.$n",
1816 "$remote_path:refs/remotes/$pfx*" .
1817 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
1818}
1819
1820sub verify_ref {
1821 my ($ref) = @_;
1822 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1823 { STDERR => 0 }); };
1824}
1825
1826sub get_tree_from_treeish {
1827 my ($treeish) = @_;
1828 # $treeish can be a symbolic ref, too:
1829 my $type = command_oneline(qw/cat-file -t/, $treeish);
1830 my $expected;
1831 while ($type eq 'tag') {
1832 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1833 }
1834 if ($type eq 'commit') {
1835 $expected = (grep /^tree /, command(qw/cat-file commit/,
1836 $treeish))[0];
1837 ($expected) = ($expected =~ /^tree ($oid)$/o);
1838 die "Unable to get tree from $treeish\n" unless $expected;
1839 } elsif ($type eq 'tree') {
1840 $expected = $treeish;
1841 } else {
1842 die "$treeish is a $type, expected tree, tag or commit\n";
1843 }
1844 return $expected;
1845}
1846
1847sub get_commit_entry {
1848 my ($treeish) = shift;
1849 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1850 my @git_path = qw(rev-parse --git-path);
1851 my $commit_editmsg = command_oneline(@git_path, 'COMMIT_EDITMSG');
1852 my $commit_msg = command_oneline(@git_path, 'COMMIT_MSG');
1853 open my $log_fh, '>', $commit_editmsg or croak $!;
1854
1855 my $type = command_oneline(qw/cat-file -t/, $treeish);
1856 if ($type eq 'commit' || $type eq 'tag') {
1857 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1858 $type, $treeish);
1859 my $in_msg = 0;
1860 my $author;
1861 my $saw_from = 0;
1862 my $msgbuf = "";
1863 while (<$msg_fh>) {
1864 if (!$in_msg) {
1865 $in_msg = 1 if (/^$/);
1866 $author = $1 if (/^author (.*>)/);
1867 } elsif (/^git-svn-id: /) {
1868 # skip this for now, we regenerate the
1869 # correct one on re-fetch anyways
1870 # TODO: set *:merge properties or like...
1871 } else {
1872 if (/^From:/ || /^Signed-off-by:/) {
1873 $saw_from = 1;
1874 }
1875 $msgbuf .= $_;
1876 }
1877 }
1878 $msgbuf =~ s/\s+$//s;
1879 $msgbuf =~ s/\r\n/\n/sg; # SVN 1.6+ disallows CRLF
1880 if ($Git::SVN::_add_author_from && defined($author)
1881 && !$saw_from) {
1882 $msgbuf .= "\n\nFrom: $author";
1883 }
1884 print $log_fh $msgbuf or croak $!;
1885 command_close_pipe($msg_fh, $ctx);
1886 }
1887 close $log_fh or croak $!;
1888
1889 if ($_edit || ($type eq 'tree')) {
1890 chomp(my $editor = command_oneline(qw(var GIT_EDITOR)));
1891 system('sh', '-c', $editor.' "$@"', $editor, $commit_editmsg);
1892 }
1893 rename $commit_editmsg, $commit_msg or croak $!;
1894 {
1895 require Encode;
1896 # SVN requires messages to be UTF-8 when entering the repo
1897 open $log_fh, '<', $commit_msg or croak $!;
1898 binmode $log_fh;
1899 chomp($log_entry{log} = get_record($log_fh, undef));
1900
1901 my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
1902 my $msg = $log_entry{log};
1903
1904 eval { $msg = Encode::decode($enc, $msg, 1) };
1905 if ($@) {
1906 die "Could not decode as $enc:\n", $msg,
1907 "\nPerhaps you need to set i18n.commitencoding\n";
1908 }
1909
1910 eval { $msg = Encode::encode('UTF-8', $msg, 1) };
1911 die "Could not encode as UTF-8:\n$msg\n" if $@;
1912
1913 $log_entry{log} = $msg;
1914
1915 close $log_fh or croak $!;
1916 }
1917 unlink $commit_msg;
1918 \%log_entry;
1919}
1920
1921sub s_to_file {
1922 my ($str, $file, $mode) = @_;
1923 open my $fd,'>',$file or croak $!;
1924 print $fd $str,"\n" or croak $!;
1925 close $fd or croak $!;
1926 chmod ($mode &~ umask, $file) if (defined $mode);
1927}
1928
1929sub file_to_s {
1930 my $file = shift;
1931 open my $fd,'<',$file or croak "$!: file: $file\n";
1932 local $/;
1933 my $ret = <$fd>;
1934 close $fd or croak $!;
1935 $ret =~ s/\s*$//s;
1936 return $ret;
1937}
1938
1939# '<svn username> = real-name <email address>' mapping based on git-svnimport:
1940sub load_authors {
1941 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1942 my $log = $cmd eq 'log';
1943 while (<$authors>) {
1944 chomp;
1945 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.*)>\s*$/;
1946 my ($user, $name, $email) = ($1, $2, $3);
1947 if ($log) {
1948 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1949 } else {
1950 $users{$user} = [$name, $email];
1951 }
1952 }
1953 close $authors or croak $!;
1954}
1955
1956# convert GetOpt::Long specs for use by git-config
1957sub read_git_config {
1958 my $opts = shift;
1959 my @config_only;
1960 foreach my $o (keys %$opts) {
1961 # if we have mixedCase and a long option-only, then
1962 # it's a config-only variable that we don't need for
1963 # the command-line.
1964 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1965 my $v = $opts->{$o};
1966 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1967 $key =~ s/-//g;
1968 my $arg = 'git config';
1969 $arg .= ' --int' if ($o =~ /[:=]i$/);
1970 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1971 if (ref $v eq 'ARRAY') {
1972 chomp(my @tmp = `$arg --get-all svn.$key`);
1973 @$v = @tmp if @tmp;
1974 } else {
1975 chomp(my $tmp = `$arg --get svn.$key`);
1976 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1977 $$v = $tmp;
1978 }
1979 }
1980 }
1981 load_object_format();
1982 delete @$opts{@config_only} if @config_only;
1983}
1984
1985sub load_object_format {
1986 chomp(my $hash = `git config --get extensions.objectformat`);
1987 $::oid_length = 64 if $hash eq 'sha256';
1988}
1989
1990sub extract_metadata {
1991 my $id = shift or return (undef, undef, undef);
1992 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1993 \s([a-f\d\-]+)$/ix);
1994 if (!defined $rev || !$uuid || !$url) {
1995 # some of the original repositories I made had
1996 # identifiers like this:
1997 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
1998 }
1999 return ($url, $rev, $uuid);
2000}
2001
2002sub cmt_metadata {
2003 return extract_metadata((grep(/^git-svn-id: /,
2004 command(qw/cat-file commit/, shift)))[-1]);
2005}
2006
2007sub cmt_sha2rev_batch {
2008 my %s2r;
2009 my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
2010 my $list = shift;
2011
2012 foreach my $sha (@{$list}) {
2013 my $first = 1;
2014 my $size = 0;
2015 print $out $sha, "\n";
2016
2017 while (my $line = <$in>) {
2018 if ($first && $line =~ /^$::oid\smissing$/) {
2019 last;
2020 } elsif ($first &&
2021 $line =~ /^$::oid\scommit\s(\d+)$/) {
2022 $first = 0;
2023 $size = $1;
2024 next;
2025 } elsif ($line =~ /^(git-svn-id: )/) {
2026 my (undef, $rev, undef) =
2027 extract_metadata($line);
2028 $s2r{$sha} = $rev;
2029 }
2030
2031 $size -= length($line);
2032 last if ($size == 0);
2033 }
2034 }
2035
2036 command_close_bidi_pipe($pid, $in, $out, $ctx);
2037
2038 return \%s2r;
2039}
2040
2041sub working_head_info {
2042 my ($head, $refs) = @_;
2043 my @args = qw/rev-list --first-parent --pretty=medium/;
2044 my ($fh, $ctx) = command_output_pipe(@args, $head, "--");
2045 my $hash;
2046 my %max;
2047 while (<$fh>) {
2048 if ( m{^commit ($::oid)$} ) {
2049 unshift @$refs, $hash if $hash and $refs;
2050 $hash = $1;
2051 next;
2052 }
2053 next unless s{^\s*(git-svn-id:)}{$1};
2054 my ($url, $rev, $uuid) = extract_metadata($_);
2055 if (defined $url && defined $rev) {
2056 next if $max{$url} and $max{$url} < $rev;
2057 if (my $gs = Git::SVN->find_by_url($url)) {
2058 my $c = $gs->rev_map_get($rev, $uuid);
2059 if ($c && $c eq $hash) {
2060 close $fh; # break the pipe
2061 return ($url, $rev, $uuid, $gs);
2062 } else {
2063 $max{$url} ||= $gs->rev_map_max;
2064 }
2065 }
2066 }
2067 }
2068 command_close_pipe($fh, $ctx);
2069 (undef, undef, undef, undef);
2070}
2071
2072sub read_commit_parents {
2073 my ($parents, $c) = @_;
2074 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
2075 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
2076 @{$parents->{$c}} = split(/ /, $p);
2077}
2078
2079sub linearize_history {
2080 my ($gs, $refs) = @_;
2081 my %parents;
2082 foreach my $c (@$refs) {
2083 read_commit_parents(\%parents, $c);
2084 }
2085
2086 my @linear_refs;
2087 my %skip = ();
2088 my $last_svn_commit = $gs->last_commit;
2089 foreach my $c (reverse @$refs) {
2090 next if $c eq $last_svn_commit;
2091 last if $skip{$c};
2092
2093 unshift @linear_refs, $c;
2094 $skip{$c} = 1;
2095
2096 # we only want the first parent to diff against for linear
2097 # history, we save the rest to inject when we finalize the
2098 # svn commit
2099 my $fp_a = verify_ref("$c~1");
2100 my $fp_b = shift @{$parents{$c}} if $parents{$c};
2101 if (!$fp_a || !$fp_b) {
2102 die "Commit $c\n",
2103 "has no parent commit, and therefore ",
2104 "nothing to diff against.\n",
2105 "You should be working from a repository ",
2106 "originally created by git-svn\n";
2107 }
2108 if ($fp_a ne $fp_b) {
2109 die "$c~1 = $fp_a, however parsing commit $c ",
2110 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
2111 }
2112
2113 foreach my $p (@{$parents{$c}}) {
2114 $skip{$p} = 1;
2115 }
2116 }
2117 (\@linear_refs, \%parents);
2118}
2119
2120sub find_file_type_and_diff_status {
2121 my ($path) = @_;
2122 return ('dir', '') if $path eq '';
2123
2124 my $diff_output =
2125 command_oneline(qw(diff --cached --name-status --), $path) || "";
2126 my $diff_status = (split(' ', $diff_output))[0] || "";
2127
2128 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
2129
2130 return (undef, undef) if !$diff_status && !$ls_tree;
2131
2132 if ($diff_status eq "A") {
2133 return ("link", $diff_status) if -l $path;
2134 return ("dir", $diff_status) if -d $path;
2135 return ("file", $diff_status);
2136 }
2137
2138 my $mode = (split(' ', $ls_tree))[0] || "";
2139
2140 return ("link", $diff_status) if $mode eq "120000";
2141 return ("dir", $diff_status) if $mode eq "040000";
2142 return ("file", $diff_status);
2143}
2144
2145sub md5sum {
2146 my $arg = shift;
2147 my $ref = ref $arg;
2148 require Digest::MD5;
2149 my $md5 = Digest::MD5->new();
2150 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
2151 $md5->addfile($arg) or croak $!;
2152 } elsif ($ref eq 'SCALAR') {
2153 $md5->add($$arg) or croak $!;
2154 } elsif (!$ref) {
2155 $md5->add($arg) or croak $!;
2156 } else {
2157 fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
2158 }
2159 return $md5->hexdigest();
2160}
2161
2162sub gc_directory {
2163 if (can_compress() && -f $_ && basename($_) eq "unhandled.log") {
2164 my $out_filename = $_ . ".gz";
2165 open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
2166 binmode $in_fh;
2167 my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
2168 die "Unable to open $out_filename: $!\n";
2169
2170 my $res;
2171 while ($res = sysread($in_fh, my $str, 1024)) {
2172 $gz->gzwrite($str) or
2173 die "Unable to write: ".$gz->gzerror()."!\n";
2174 }
2175 no warnings 'once'; # $File::Find::name would warn
2176 unlink $_ or die "unlink $File::Find::name: $!\n";
2177 } elsif (-f $_ && basename($_) eq "index") {
2178 unlink $_ or die "unlink $_: $!\n";
2179 }
2180}
2181
2182__END__
2183
2184Data structures:
2185
2186
2187$remotes = { # returned by read_all_remotes()
2188 'svn' => {
2189 # svn-remote.svn.url=https://svn.musicpd.org
2190 url => 'https://svn.musicpd.org',
2191 # svn-remote.svn.fetch=mpd/trunk:trunk
2192 fetch => {
2193 'mpd/trunk' => 'trunk',
2194 },
2195 # svn-remote.svn.tags=mpd/tags/*:tags/*
2196 tags => {
2197 path => {
2198 left => 'mpd/tags',
2199 right => '',
2200 regex => qr!mpd/tags/([^/]+)$!,
2201 glob => 'tags/*',
2202 },
2203 ref => {
2204 left => 'tags',
2205 right => '',
2206 regex => qr!tags/([^/]+)$!,
2207 glob => 'tags/*',
2208 },
2209 }
2210 }
2211};
2212
2213$log_entry hashref as returned by libsvn_log_entry()
2214{
2215 log => 'whitespace-formatted log entry
2216', # trailing newline is preserved
2217 revision => '8', # integer
2218 date => '2004-02-24T17:01:44.108345Z', # commit date
2219 author => 'committer name'
2220};
2221
2222
2223# this is generated by generate_diff();
2224@mods = array of diff-index line hashes, each element represents one line
2225 of diff-index output
2226
2227diff-index line ($m hash)
2228{
2229 mode_a => first column of diff-index output, no leading ':',
2230 mode_b => second column of diff-index output,
2231 sha1_b => sha1sum of the final blob,
2232 chg => change type [MCRADT],
2233 file_a => original file name of a file (iff chg is 'C' or 'R')
2234 file_b => new/current file name of a file (any chg)
2235}
2236;
2237
2238# retval of read_url_paths{,_all}();
2239$l_map = {
2240 # repository root url
2241 'https://svn.musicpd.org' => {
2242 # repository path # GIT_SVN_ID
2243 'mpd/trunk' => 'trunk',
2244 'mpd/tags/0.11.5' => 'tags/0.11.5',
2245 },
2246}
2247
2248Notes:
2249 I don't trust the each() function on unless I created %hash myself
2250 because the internal iterator may not have started at base.