1#!/usr/bin/perl
2# Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3# License: GPL v2 or later
4use 5.008;
5use warnings;
6use strict;
7use vars qw/ $AUTHOR $VERSION
8 $sha1 $sha1_short $_revision $_repository
9 $_q $_authors $_authors_prog %users/;
10$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
11$VERSION = '@@GIT_VERSION@@';
12use Carp qw/croak/;
14use File::Basename qw/dirname basename/;
15use File::Path qw/mkpath/;
16use File::Spec;
17use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
18use Memoize;
19use Git::SVN;
21use Git::SVN::Editor;
22use Git::SVN::Fetcher;
23use Git::SVN::Ra;
24use Git::SVN::Prompt;
25use Git::SVN::Log;
26use Git::SVN::Migration;
27use Git::SVN::Utils qw(
29 fatal
30 can_compress
31 canonicalize_path
32 canonicalize_url
33 join_paths
34 add_path_to_url
35 join_paths
36);
37use Git qw(
39 git_cmd_try
40 command
41 command_oneline
42 command_noisy
43 command_output_pipe
44 command_close_pipe
45 command_bidi_pipe
46 command_close_bidi_pipe
47 get_record
48);
49BEGIN {
51 Memoize::memoize 'Git::config';
52 Memoize::memoize 'Git::config_bool';
53}
54# From which subdir have we been invoked?
57my $cmd_dir_prefix = eval {
58 command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
59} || '';
60$Git::SVN::Ra::_log_window_size = 100;
62if (! exists $ENV{SVN_SSH} && exists $ENV{GIT_SSH}) {
64 $ENV{SVN_SSH} = $ENV{GIT_SSH};
65}
66if (exists $ENV{SVN_SSH} && $^O eq 'msys') {
68 $ENV{SVN_SSH} =~ s/\\/\\\\/g;
69 $ENV{SVN_SSH} =~ s/(.*)/"$1"/;
70}
71$Git::SVN::Log::TZ = $ENV{TZ};
73$ENV{TZ} = 'UTC';
74$| = 1; # unbuffer STDOUT
75# All SVN commands do it. Otherwise we may die on SIGPIPE when the remote
77# repository decides to close the connection which we expect to be kept alive.
78$SIG{PIPE} = 'IGNORE';
79# Given a dot separated version number, "subtract" it from
81# the SVN::Core::VERSION; non-negaitive return means the SVN::Core
82# is at least at the version the caller asked for.
83sub compare_svn_version {
84 my (@ours) = split(/\./, $SVN::Core::VERSION);
85 my (@theirs) = split(/\./, $_[0]);
86 my ($i, $diff);
87 for ($i = 0; $i < @ours && $i < @theirs; $i++) {
89 $diff = $ours[$i] - $theirs[$i];
90 return $diff if ($diff);
91 }
92 return 1 if ($i < @ours);
93 return -1 if ($i < @theirs);
94 return 0;
95}
96sub _req_svn {
98 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
99 require SVN::Ra;
100 require SVN::Delta;
101 if (::compare_svn_version('1.1.0') < 0) {
102 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
103 }
104}
105$sha1 = qr/[a-f\d]{40}/;
107$sha1_short = qr/[a-f\d]{4,40}/;
108my ($_stdin, $_help, $_edit,
109 $_message, $_file, $_branch_dest,
110 $_template, $_shared,
111 $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
112 $_before, $_after,
113 $_merge, $_strategy, $_preserve_merges, $_dry_run, $_parents, $_local,
114 $_prefix, $_no_checkout, $_url, $_verbose,
115 $_commit_url, $_tag, $_merge_info, $_interactive, $_set_svn_props);
116# This is a refactoring artifact so Git::SVN can get at this git-svn switch.
118sub opt_prefix { return $_prefix || '' }
119$Git::SVN::Fetcher::_placeholder_filename = ".gitignore";
121$_q ||= 0;
122my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
123 'config-dir=s' => \$Git::SVN::Ra::config_dir,
124 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
125 'ignore-paths=s' => \$Git::SVN::Fetcher::_ignore_regex,
126 'include-paths=s' => \$Git::SVN::Fetcher::_include_regex,
127 'ignore-refs=s' => \$Git::SVN::Ra::_ignore_refs_regex );
128my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
129 'authors-file|A=s' => \$_authors,
130 'authors-prog=s' => \$_authors_prog,
131 'repack:i' => \$Git::SVN::_repack,
132 'noMetadata' => \$Git::SVN::_no_metadata,
133 'useSvmProps' => \$Git::SVN::_use_svm_props,
134 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
135 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
136 'no-checkout' => \$_no_checkout,
137 'quiet|q+' => \$_q,
138 'repack-flags|repack-args|repack-opts=s' =>
139 \$Git::SVN::_repack_flags,
140 'use-log-author' => \$Git::SVN::_use_log_author,
141 'add-author-from' => \$Git::SVN::_add_author_from,
142 'localtime' => \$Git::SVN::_localtime,
143 %remote_opts );
144my ($_trunk, @_tags, @_branches, $_stdlayout);
146my %icv;
147my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
148 'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags,
149 'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix,
150 'stdlayout|s' => \$_stdlayout,
151 'minimize-url|m!' => \$Git::SVN::_minimize_url,
152 'no-metadata' => sub { $icv{noMetadata} = 1 },
153 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
154 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
155 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
156 'rewrite-uuid=s' => sub { $icv{rewriteUUID} = $_[1] },
157 %remote_opts );
158my %cmt_opts = ( 'edit|e' => \$_edit,
159 'rmdir' => \$Git::SVN::Editor::_rmdir,
160 'find-copies-harder' => \$Git::SVN::Editor::_find_copies_harder,
161 'l=i' => \$Git::SVN::Editor::_rename_limit,
162 'copy-similarity|C=i'=> \$Git::SVN::Editor::_cp_similarity
163);
164my %cmd = (
166 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
167 { 'revision|r=s' => \$_revision,
168 'fetch-all|all' => \$_fetch_all,
169 'parent|p' => \$_fetch_parent,
170 %fc_opts } ],
171 clone => [ \&cmd_clone, "Initialize and fetch revisions",
172 { 'revision|r=s' => \$_revision,
173 'preserve-empty-dirs' =>
174 \$Git::SVN::Fetcher::_preserve_empty_dirs,
175 'placeholder-filename=s' =>
176 \$Git::SVN::Fetcher::_placeholder_filename,
177 %fc_opts, %init_opts } ],
178 init => [ \&cmd_init, "Initialize a repo for tracking" .
179 " (requires URL argument)",
180 \%init_opts ],
181 'multi-init' => [ \&cmd_multi_init,
182 "Deprecated alias for ".
183 "'$0 init -T<trunk> -b<branches> -t<tags>'",
184 \%init_opts ],
185 dcommit => [ \&cmd_dcommit,
186 'Commit several diffs to merge with upstream',
187 { 'merge|m|M' => \$_merge,
188 'strategy|s=s' => \$_strategy,
189 'verbose|v' => \$_verbose,
190 'dry-run|n' => \$_dry_run,
191 'fetch-all|all' => \$_fetch_all,
192 'commit-url=s' => \$_commit_url,
193 'set-svn-props=s' => \$_set_svn_props,
194 'revision|r=i' => \$_revision,
195 'no-rebase' => \$_no_rebase,
196 'mergeinfo=s' => \$_merge_info,
197 'interactive|i' => \$_interactive,
198 %cmt_opts, %fc_opts } ],
199 branch => [ \&cmd_branch,
200 'Create a branch in the SVN repository',
201 { 'message|m=s' => \$_message,
202 'destination|d=s' => \$_branch_dest,
203 'dry-run|n' => \$_dry_run,
204 'parents' => \$_parents,
205 'tag|t' => \$_tag,
206 'username=s' => \$Git::SVN::Prompt::_username,
207 'commit-url=s' => \$_commit_url } ],
208 tag => [ sub { $_tag = 1; cmd_branch(@_) },
209 'Create a tag in the SVN repository',
210 { 'message|m=s' => \$_message,
211 'destination|d=s' => \$_branch_dest,
212 'dry-run|n' => \$_dry_run,
213 'parents' => \$_parents,
214 'username=s' => \$Git::SVN::Prompt::_username,
215 'commit-url=s' => \$_commit_url } ],
216 'set-tree' => [ \&cmd_set_tree,
217 "Set an SVN repository to a git tree-ish",
218 { 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ],
219 'create-ignore' => [ \&cmd_create_ignore,
220 'Create a .gitignore per svn:ignore',
221 { 'revision|r=i' => \$_revision
222 } ],
223 'mkdirs' => [ \&cmd_mkdirs ,
224 "recreate empty directories after a checkout",
225 { 'revision|r=i' => \$_revision } ],
226 'propget' => [ \&cmd_propget,
227 'Print the value of a property on a file or directory',
228 { 'revision|r=i' => \$_revision } ],
229 'propset' => [ \&cmd_propset,
230 'Set the value of a property on a file or directory - will be set on commit',
231 {} ],
232 'proplist' => [ \&cmd_proplist,
233 'List all properties of a file or directory',
234 { 'revision|r=i' => \$_revision } ],
235 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
236 { 'revision|r=i' => \$_revision
237 } ],
238 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
239 { 'revision|r=i' => \$_revision
240 } ],
241 'multi-fetch' => [ \&cmd_multi_fetch,
242 "Deprecated alias for $0 fetch --all",
243 { 'revision|r=s' => \$_revision, %fc_opts } ],
244 'migrate' => [ sub { },
245 # no-op, we automatically run this anyways,
246 'Migrate configuration/metadata/layout from
247 previous versions of git-svn',
248 { 'minimize' => \$Git::SVN::Migration::_minimize,
249 %remote_opts } ],
250 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
251 { 'limit=i' => \$Git::SVN::Log::limit,
252 'revision|r=s' => \$_revision,
253 'verbose|v' => \$Git::SVN::Log::verbose,
254 'incremental' => \$Git::SVN::Log::incremental,
255 'oneline' => \$Git::SVN::Log::oneline,
256 'show-commit' => \$Git::SVN::Log::show_commit,
257 'non-recursive' => \$Git::SVN::Log::non_recursive,
258 'authors-file|A=s' => \$_authors,
259 'color' => \$Git::SVN::Log::color,
260 'pager=s' => \$Git::SVN::Log::pager
261 } ],
262 'find-rev' => [ \&cmd_find_rev,
263 "Translate between SVN revision numbers and tree-ish",
264 { 'B|before' => \$_before,
265 'A|after' => \$_after } ],
266 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
267 { 'merge|m|M' => \$_merge,
268 'verbose|v' => \$_verbose,
269 'strategy|s=s' => \$_strategy,
270 'local|l' => \$_local,
271 'fetch-all|all' => \$_fetch_all,
272 'dry-run|n' => \$_dry_run,
273 'preserve-merges|p' => \$_preserve_merges,
274 %fc_opts } ],
275 'commit-diff' => [ \&cmd_commit_diff,
276 'Commit a diff between two trees',
277 { 'message|m=s' => \$_message,
278 'file|F=s' => \$_file,
279 'revision|r=s' => \$_revision,
280 %cmt_opts } ],
281 'info' => [ \&cmd_info,
282 "Show info about the latest SVN revision
283 on the current branch",
284 { 'url' => \$_url, } ],
285 'blame' => [ \&Git::SVN::Log::cmd_blame,
286 "Show what revision and author last modified each line of a file",
287 { 'git-format' => \$Git::SVN::Log::_git_format } ],
288 'reset' => [ \&cmd_reset,
289 "Undo fetches back to the specified SVN revision",
290 { 'revision|r=s' => \$_revision,
291 'parent|p' => \$_fetch_parent } ],
292 'gc' => [ \&cmd_gc,
293 "Compress unhandled.log files in .git/svn and remove " .
294 "index files in .git/svn",
295 {} ],
296);
297package FakeTerm;
299sub new {
300 my ($class, $reason) = @_;
301 return bless \$reason, shift;
302}
303sub readline {
304 my $self = shift;
305 die "Cannot use readline on FakeTerm: $$self";
306}
307package main;
308my $term;
310sub term_init {
311 $term = eval {
312 require Term::ReadLine;
313 $ENV{"GIT_SVN_NOTTY"}
314 ? new Term::ReadLine 'git-svn', \*STDIN, \*STDOUT
315 : new Term::ReadLine 'git-svn';
316 };
317 if ($@) {
318 $term = new FakeTerm "$@: going non-interactive";
319 }
320}
321my $cmd;
323for (my $i = 0; $i < @ARGV; $i++) {
324 if (defined $cmd{$ARGV[$i]}) {
325 $cmd = $ARGV[$i];
326 splice @ARGV, $i, 1;
327 last;
328 } elsif ($ARGV[$i] eq 'help') {
329 $cmd = $ARGV[$i+1];
330 usage(0);
331 }
332};
333# make sure we're always running at the top-level working directory
335if ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
336 $ENV{GIT_DIR} ||= ".git";
337 # catch the submodule case
338 if (-f $ENV{GIT_DIR}) {
339 open(my $fh, '<', $ENV{GIT_DIR}) or
340 die "failed to open $ENV{GIT_DIR}: $!\n";
341 $ENV{GIT_DIR} = $1 if <$fh> =~ /^gitdir: (.+)$/;
342 }
343} elsif ($cmd) {
344 my ($git_dir, $cdup);
345 git_cmd_try {
346 $git_dir = command_oneline([qw/rev-parse --git-dir/]);
347 } "Unable to find .git directory\n";
348 git_cmd_try {
349 $cdup = command_oneline(qw/rev-parse --show-cdup/);
350 chomp $cdup if ($cdup);
351 $cdup = "." unless ($cdup && length $cdup);
352 } "Already at toplevel, but $git_dir not found\n";
353 $ENV{GIT_DIR} = $git_dir;
354 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
355 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
356}
357my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
359read_git_config(\%opts) if $ENV{GIT_DIR};
361if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
362 Getopt::Long::Configure('pass_through');
363}
364my $rv = GetOptions(%opts, 'h|H' => \$_help, 'version|V' => \$_version,
365 'minimize-connections' => \$Git::SVN::Migration::_minimize,
366 'id|i=s' => \$Git::SVN::default_ref_id,
367 'svn-remote|remote|R=s' => sub {
368 $Git::SVN::no_reuse_existing = 1;
369 $Git::SVN::default_repo_id = $_[1] });
370exit 1 if (!$rv && $cmd && $cmd ne 'log');
371usage(0) if $_help;
373version() if $_version;
374usage(1) unless defined $cmd;
375load_authors() if $_authors;
376if (defined $_authors_prog) {
377 $_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'";
378}
379unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
381 Git::SVN::Migration::migration_check();
382}
383Git::SVN::init_vars();
384eval {
385 Git::SVN::verify_remotes_sanity();
386 $cmd{$cmd}->[0]->(@ARGV);
387 post_fetch_checkout();
388};
389fatal $@ if $@;
390exit 0;
391####################### primary functions ######################
393sub usage {
394 my $exit = shift || 0;
395 my $fd = $exit ? \*STDERR : \*STDOUT;
396 print $fd <<"";
397git-svn - bidirectional operations between a single Subversion tree and git
398usage: git svn <command> [options] [arguments]\n
399 print $fd "Available commands:\n" unless $cmd;
401 foreach (sort keys %cmd) {
403 next if $cmd && $cmd ne $_;
404 next if /^multi-/; # don't show deprecated commands
405 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
406 foreach (sort keys %{$cmd{$_}->[2]}) {
407 # mixed-case options are for .git/config only
408 next if /[A-Z]/ && /^[a-z]+$/i;
409 # prints out arguments as they should be passed:
410 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
411 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
412 "--$_" : "-$_" }
413 split /\|/,$_)," $x\n";
414 }
415 }
416 print $fd <<"";
417\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
418arbitrary identifier if you're tracking multiple SVN branches/repositories in
419one git repository and want to keep them separate. See git-svn(1) for more
420information.
421 exit $exit;
423}
424sub version {
426 ::_req_svn();
427 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
428 exit 0;
429}
430sub ask {
432 my ($prompt, %arg) = @_;
433 my $valid_re = $arg{valid_re};
434 my $default = $arg{default};
435 my $resp;
436 my $i = 0;
437 term_init() unless $term;
438 if ( !( defined($term->IN)
440 && defined( fileno($term->IN) )
441 && defined( $term->OUT )
442 && defined( fileno($term->OUT) ) ) ){
443 return defined($default) ? $default : undef;
444 }
445 while ($i++ < 10) {
447 $resp = $term->readline($prompt);
448 if (!defined $resp) { # EOF
449 print "\n";
450 return defined $default ? $default : undef;
451 }
452 if ($resp eq '' and defined $default) {
453 return $default;
454 }
455 if (!defined $valid_re or $resp =~ /$valid_re/) {
456 return $resp;
457 }
458 }
459 return undef;
460}
461sub do_git_init_db {
463 unless (-d $ENV{GIT_DIR}) {
464 my @init_db = ('init');
465 push @init_db, "--template=$_template" if defined $_template;
466 if (defined $_shared) {
467 if ($_shared =~ /[a-z]/) {
468 push @init_db, "--shared=$_shared";
469 } else {
470 push @init_db, "--shared";
471 }
472 }
473 command_noisy(@init_db);
474 $_repository = Git->repository(Repository => ".git");
475 }
476 my $set;
477 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
478 foreach my $i (keys %icv) {
479 die "'$set' and '$i' cannot both be set\n" if $set;
480 next unless defined $icv{$i};
481 command_noisy('config', "$pfx.$i", $icv{$i});
482 $set = $i;
483 }
484 my $ignore_paths_regex = \$Git::SVN::Fetcher::_ignore_regex;
485 command_noisy('config', "$pfx.ignore-paths", $$ignore_paths_regex)
486 if defined $$ignore_paths_regex;
487 my $include_paths_regex = \$Git::SVN::Fetcher::_include_regex;
488 command_noisy('config', "$pfx.include-paths", $$include_paths_regex)
489 if defined $$include_paths_regex;
490 my $ignore_refs_regex = \$Git::SVN::Ra::_ignore_refs_regex;
491 command_noisy('config', "$pfx.ignore-refs", $$ignore_refs_regex)
492 if defined $$ignore_refs_regex;
493 if (defined $Git::SVN::Fetcher::_preserve_empty_dirs) {
495 my $fname = \$Git::SVN::Fetcher::_placeholder_filename;
496 command_noisy('config', "$pfx.preserve-empty-dirs", 'true');
497 command_noisy('config', "$pfx.placeholder-filename", $$fname);
498 }
499}
500sub init_subdir {
502 my $repo_path = shift or return;
503 mkpath([$repo_path]) unless -d $repo_path;
504 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
505 $ENV{GIT_DIR} = '.git';
506 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
507}
508sub cmd_clone {
510 my ($url, $path) = @_;
511 if (!$url) {
512 die "SVN repository location required ",
513 "as a command-line argument\n";
514 } elsif (!defined $path &&
515 (defined $_trunk || @_branches || @_tags ||
516 defined $_stdlayout) &&
517 $url !~ m#^[a-z\+]+://#) {
518 $path = $url;
519 }
520 $path = basename($url) if !defined $path || !length $path;
521 my $authors_absolute = $_authors ? File::Spec->rel2abs($_authors) : "";
522 cmd_init($url, $path);
523 command_oneline('config', 'svn.authorsfile', $authors_absolute)
524 if $_authors;
525 Git::SVN::fetch_all($Git::SVN::default_repo_id);
526}
527sub cmd_init {
529 if (defined $_stdlayout) {
530 $_trunk = 'trunk' if (!defined $_trunk);
531 @_tags = 'tags' if (! @_tags);
532 @_branches = 'branches' if (! @_branches);
533 }
534 if (defined $_trunk || @_branches || @_tags) {
535 return cmd_multi_init(@_);
536 }
537 my $url = shift or die "SVN repository location required ",
538 "as a command-line argument\n";
539 $url = canonicalize_url($url);
540 init_subdir(@_);
541 do_git_init_db();
542 if ($Git::SVN::_minimize_url eq 'unset') {
544 $Git::SVN::_minimize_url = 0;
545 }
546 Git::SVN->init($url);
548}
549sub cmd_fetch {
551 if (grep /^\d+=./, @_) {
552 die "'<rev>=<commit>' fetch arguments are ",
553 "no longer supported.\n";
554 }
555 my ($remote) = @_;
556 if (@_ > 1) {
557 die "usage: $0 fetch [--all] [--parent] [svn-remote]\n";
558 }
559 $Git::SVN::no_reuse_existing = undef;
560 if ($_fetch_parent) {
561 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
562 unless ($gs) {
563 die "Unable to determine upstream SVN information from ",
564 "working tree history\n";
565 }
566 # just fetch, don't checkout.
567 $_no_checkout = 'true';
568 $_fetch_all ? $gs->fetch_all : $gs->fetch;
569 } elsif ($_fetch_all) {
570 cmd_multi_fetch();
571 } else {
572 $remote ||= $Git::SVN::default_repo_id;
573 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
574 }
575}
576sub cmd_set_tree {
578 my (@commits) = @_;
579 if ($_stdin || !@commits) {
580 print "Reading from stdin...\n";
581 @commits = ();
582 while (<STDIN>) {
583 if (/\b($sha1_short)\b/o) {
584 unshift @commits, $1;
585 }
586 }
587 }
588 my @revs;
589 foreach my $c (@commits) {
590 my @tmp = command('rev-parse',$c);
591 if (scalar @tmp == 1) {
592 push @revs, $tmp[0];
593 } elsif (scalar @tmp > 1) {
594 push @revs, reverse(command('rev-list',@tmp));
595 } else {
596 fatal "Failed to rev-parse $c";
597 }
598 }
599 my $gs = Git::SVN->new;
600 my ($r_last, $cmt_last) = $gs->last_rev_commit;
601 $gs->fetch;
602 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
603 fatal "There are new revisions that were fetched ",
604 "and need to be merged (or acknowledged) ",
605 "before committing.\nlast rev: $r_last\n",
606 " current: $gs->{last_rev}";
607 }
608 $gs->set_tree($_) foreach @revs;
609 print "Done committing ",scalar @revs," revisions to SVN\n";
610 unlink $gs->{index};
611}
612sub split_merge_info_range {
614 my ($range) = @_;
615 if ($range =~ /(\d+)-(\d+)/) {
616 return (int($1), int($2));
617 } else {
618 return (int($range), int($range));
619 }
620}
621sub combine_ranges {
623 my ($in) = @_;
624 my @fnums = ();
626 my @arr = split(/,/, $in);
627 for my $element (@arr) {
628 my ($start, $end) = split_merge_info_range($element);
629 push @fnums, $start;
630 }
631 my @sorted = @arr [ sort {
633 $fnums[$a] <=> $fnums[$b]
634 } 0..$#arr ];
635 my @return = ();
637 my $last = -1;
638 my $first = -1;
639 for my $element (@sorted) {
640 my ($start, $end) = split_merge_info_range($element);
641 if ($last == -1) {
643 $first = $start;
644 $last = $end;
645 next;
646 }
647 if ($start <= $last+1) {
648 if ($end > $last) {
649 $last = $end;
650 }
651 next;
652 }
653 if ($first == $last) {
654 push @return, "$first";
655 } else {
656 push @return, "$first-$last";
657 }
658 $first = $start;
659 $last = $end;
660 }
661 if ($first != -1) {
663 if ($first == $last) {
664 push @return, "$first";
665 } else {
666 push @return, "$first-$last";
667 }
668 }
669 return join(',', @return);
671}
672sub merge_revs_into_hash {
674 my ($hash, $minfo) = @_;
675 my @lines = split(' ', $minfo);
676 for my $line (@lines) {
678 my ($branchpath, $revs) = split(/:/, $line);
679 if (exists($hash->{$branchpath})) {
681 # Merge the two revision sets
682 my $combined = "$hash->{$branchpath},$revs";
683 $hash->{$branchpath} = combine_ranges($combined);
684 } else {
685 # Just do range combining for consolidation
686 $hash->{$branchpath} = combine_ranges($revs);
687 }
688 }
689}
690sub merge_merge_info {
692 my ($mergeinfo_one, $mergeinfo_two, $ignore_branch) = @_;
693 my %result_hash = ();
694 merge_revs_into_hash(\%result_hash, $mergeinfo_one);
696 merge_revs_into_hash(\%result_hash, $mergeinfo_two);
697 delete $result_hash{$ignore_branch} if $ignore_branch;
699 my $result = '';
701 # Sort below is for consistency's sake
702 for my $branchname (sort keys(%result_hash)) {
703 my $revlist = $result_hash{$branchname};
704 $result .= "$branchname:$revlist\n"
705 }
706 return $result;
707}
708sub populate_merge_info {
710 my ($d, $gs, $uuid, $linear_refs, $rewritten_parent) = @_;
711 my %parentshash;
713 read_commit_parents(\%parentshash, $d);
714 my @parents = @{$parentshash{$d}};
715 if ($#parents > 0) {
716 # Merge commit
717 my $all_parents_ok = 1;
718 my $aggregate_mergeinfo = '';
719 my $rooturl = $gs->repos_root;
720 my ($target_branch) = $gs->full_pushurl =~ /^\Q$rooturl\E(.*)/;
721 if (defined($rewritten_parent)) {
723 # Replace first parent with newly-rewritten version
724 shift @parents;
725 unshift @parents, $rewritten_parent;
726 }
727 foreach my $parent (@parents) {
729 my ($branchurl, $svnrev, $paruuid) =
730 cmt_metadata($parent);
731 unless (defined($svnrev)) {
733 # Should have been caught be preflight check
734 fatal "merge commit $d has ancestor $parent, but that change "
735 ."does not have git-svn metadata!";
736 }
737 unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
738 fatal "commit $parent git-svn metadata changed mid-run!";
739 }
740 my $branchpath = $1;
741 my $ra = Git::SVN::Ra->new($branchurl);
743 my (undef, undef, $props) =
744 $ra->get_dir(canonicalize_path("."), $svnrev);
745 my $par_mergeinfo = $props->{'svn:mergeinfo'};
746 unless (defined $par_mergeinfo) {
747 $par_mergeinfo = '';
748 }
749 # Merge previous mergeinfo values
750 $aggregate_mergeinfo =
751 merge_merge_info($aggregate_mergeinfo,
752 $par_mergeinfo,
753 $target_branch);
754 next if $parent eq $parents[0]; # Skip first parent
756 # Add new changes being placed in tree by merge
757 my @cmd = (qw/rev-list --reverse/,
758 $parent, qw/--not/);
759 foreach my $par (@parents) {
760 unless ($par eq $parent) {
761 push @cmd, $par;
762 }
763 }
764 my @revsin = ();
765 my ($revlist, $ctx) = command_output_pipe(@cmd);
766 while (<$revlist>) {
767 my $irev = $_;
768 chomp $irev;
769 my (undef, $csvnrev, undef) =
770 cmt_metadata($irev);
771 unless (defined $csvnrev) {
772 # A child is missing SVN annotations...
773 # this might be OK, or might not be.
774 warn "W:child $irev is merged into revision "
775 ."$d but does not have git-svn metadata. "
776 ."This means git-svn cannot determine the "
777 ."svn revision numbers to place into the "
778 ."svn:mergeinfo property. You must ensure "
779 ."a branch is entirely committed to "
780 ."SVN before merging it in order for "
781 ."svn:mergeinfo population to function "
782 ."properly";
783 }
784 push @revsin, $csvnrev;
785 }
786 command_close_pipe($revlist, $ctx);
787 last unless $all_parents_ok;
789 # We now have a list of all SVN revnos which are
791 # merged by this particular parent. Integrate them.
792 next if $#revsin == -1;
793 my $newmergeinfo = "$branchpath:" . join(',', @revsin);
794 $aggregate_mergeinfo =
795 merge_merge_info($aggregate_mergeinfo,
796 $newmergeinfo,
797 $target_branch);
798 }
799 if ($all_parents_ok and $aggregate_mergeinfo) {
800 return $aggregate_mergeinfo;
801 }
802 }
803 return undef;
805}
806sub dcommit_rebase {
808 my ($is_last, $current, $fetched_ref, $svn_error) = @_;
809 my @diff;
810 if ($svn_error) {
812 print STDERR "\nERROR from SVN:\n",
813 $svn_error->expanded_message, "\n";
814 }
815 unless ($_no_rebase) {
816 # we always want to rebase against the current HEAD,
817 # not any head that was passed to us
818 @diff = command('diff-tree', $current,
819 $fetched_ref, '--');
820 my @finish;
821 if (@diff) {
822 @finish = rebase_cmd();
823 print STDERR "W: $current and ", $fetched_ref,
824 " differ, using @finish:\n",
825 join("\n", @diff), "\n";
826 } elsif ($is_last) {
827 print "No changes between ", $current, " and ",
828 $fetched_ref,
829 "\nResetting to the latest ",
830 $fetched_ref, "\n";
831 @finish = qw/reset --mixed/;
832 }
833 command_noisy(@finish, $fetched_ref) if @finish;
834 }
835 if ($svn_error) {
836 die "ERROR: Not all changes have been committed into SVN"
837 .($_no_rebase ? ".\n" : ", however the committed\n"
838 ."ones (if any) seem to be successfully integrated "
839 ."into the working tree.\n")
840 ."Please see the above messages for details.\n";
841 }
842 return @diff;
843}
844sub cmd_dcommit {
846 my $head = shift;
847 command_noisy(qw/update-index --refresh/);
848 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD --/) }
849 'Cannot dcommit with a dirty index. Commit your changes first, '
850 . "or stash them with `git stash'.\n";
851 $head ||= 'HEAD';
852 my $old_head;
854 if ($head ne 'HEAD') {
855 $old_head = eval {
856 command_oneline([qw/symbolic-ref -q HEAD/])
857 };
858 if ($old_head) {
859 $old_head =~ s{^refs/heads/}{};
860 } else {
861 $old_head = eval { command_oneline(qw/rev-parse HEAD/) };
862 }
863 command(['checkout', $head], STDERR => 0);
864 }
865 my @refs;
867 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
868 unless ($gs) {
869 die "Unable to determine upstream SVN information from ",
870 "$head history.\nPerhaps the repository is empty.";
871 }
872 if (defined $_commit_url) {
874 $url = $_commit_url;
875 } else {
876 $url = eval { command_oneline('config', '--get',
877 "svn-remote.$gs->{repo_id}.commiturl") };
878 if (!$url) {
879 $url = $gs->full_pushurl
880 }
881 }
882 my $last_rev = $_revision if defined $_revision;
884 if ($url) {
885 print "Committing to $url ...\n";
886 }
887 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
888 if ($_no_rebase && scalar(@$linear_refs) > 1) {
889 warn "Attempting to commit more than one change while ",
890 "--no-rebase is enabled.\n",
891 "If these changes depend on each other, re-running ",
892 "without --no-rebase may be required."
893 }
894 if (defined $_interactive){
896 my $ask_default = "y";
897 foreach my $d (@$linear_refs){
898 my ($fh, $ctx) = command_output_pipe(qw(show --summary), "$d");
899 while (<$fh>){
900 print $_;
901 }
902 command_close_pipe($fh, $ctx);
903 $_ = ask("Commit this patch to SVN? ([y]es (default)|[n]o|[q]uit|[a]ll): ",
904 valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
905 default => $ask_default);
906 die "Commit this patch reply required" unless defined $_;
907 if (/^[nq]/i) {
908 exit(0);
909 } elsif (/^a/i) {
910 last;
911 }
912 }
913 }
914 my $expect_url = $url;
916 my $push_merge_info = eval {
918 command_oneline(qw/config --get svn.pushmergeinfo/)
919 };
920 if (not defined($push_merge_info)
921 or $push_merge_info eq "false"
922 or $push_merge_info eq "no"
923 or $push_merge_info eq "never") {
924 $push_merge_info = 0;
925 }
926 unless (defined($_merge_info) || ! $push_merge_info) {
928 # Preflight check of changes to ensure no issues with mergeinfo
929 # This includes check for uncommitted-to-SVN parents
930 # (other than the first parent, which we will handle),
931 # information from different SVN repos, and paths
932 # which are not underneath this repository root.
933 my $rooturl = $gs->repos_root;
934 Git::SVN::remove_username($rooturl);
935 foreach my $d (@$linear_refs) {
936 my %parentshash;
937 read_commit_parents(\%parentshash, $d);
938 my @realparents = @{$parentshash{$d}};
939 if ($#realparents > 0) {
940 # Merge commit
941 shift @realparents; # Remove/ignore first parent
942 foreach my $parent (@realparents) {
943 my ($branchurl, $svnrev, $paruuid) = cmt_metadata($parent);
944 unless (defined $paruuid) {
945 # A parent is missing SVN annotations...
946 # abort the whole operation.
947 fatal "$parent is merged into revision $d, "
948 ."but does not have git-svn metadata. "
949 ."Either dcommit the branch or use a "
950 ."local cherry-pick, FF merge, or rebase "
951 ."instead of an explicit merge commit.";
952 }
953 unless ($paruuid eq $uuid) {
955 # Parent has SVN metadata from different repository
956 fatal "merge parent $parent for change $d has "
957 ."git-svn uuid $paruuid, while current change "
958 ."has uuid $uuid!";
959 }
960 unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
962 # This branch is very strange indeed.
963 fatal "merge parent $parent for $d is on branch "
964 ."$branchurl, which is not under the "
965 ."git-svn root $rooturl!";
966 }
967 }
968 }
969 }
970 }
971 my $rewritten_parent;
973 my $current_head = command_oneline(qw/rev-parse HEAD/);
974 Git::SVN::remove_username($expect_url);
975 if (defined($_merge_info)) {
976 $_merge_info =~ tr{ }{\n};
977 }
978 while (1) {
979 my $d = shift @$linear_refs or last;
980 unless (defined $last_rev) {
981 (undef, $last_rev, undef) = cmt_metadata("$d~1");
982 unless (defined $last_rev) {
983 fatal "Unable to extract revision information ",
984 "from commit $d~1";
985 }
986 }
987 if ($_dry_run) {
988 print "diff-tree $d~1 $d\n";
989 } else {
990 my $cmt_rev;
991 unless (defined($_merge_info) || ! $push_merge_info) {
993 $_merge_info = populate_merge_info($d, $gs,
994 $uuid,
995 $linear_refs,
996 $rewritten_parent);
997 }
998 my %ed_opts = ( r => $last_rev,
1000 log => get_commit_entry($d)->{log},
1001 ra => Git::SVN::Ra->new($url),
1002 config => SVN::Core::config_get_config(
1003 $Git::SVN::Ra::config_dir
1004 ),
1005 tree_a => "$d~1",
1006 tree_b => $d,
1007 editor_cb => sub {
1008 print "Committed r$_[0]\n";
1009 $cmt_rev = $_[0];
1010 },
1011 mergeinfo => $_merge_info,
1012 svn_path => '');
1013 my $err_handler = $SVN::Error::handler;
1015 $SVN::Error::handler = sub {
1016 my $err = shift;
1017 dcommit_rebase(1, $current_head, $gs->refname,
1018 $err);
1019 };
1020 if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
1022 print "No changes\n$d~1 == $d\n";
1023 } elsif ($parents->{$d} && @{$parents->{$d}}) {
1024 $gs->{inject_parents_dcommit}->{$cmt_rev} =
1025 $parents->{$d};
1026 }
1027 $_fetch_all ? $gs->fetch_all : $gs->fetch;
1028 $SVN::Error::handler = $err_handler;
1029 $last_rev = $cmt_rev;
1030 next if $_no_rebase;
1031 my @diff = dcommit_rebase(@$linear_refs == 0, $d,
1033 $gs->refname, undef);
1034 $rewritten_parent = command_oneline(qw/rev-parse/,
1036 $gs->refname);
1037 if (@diff) {
1039 $current_head = command_oneline(qw/rev-parse
1040 HEAD/);
1041 @refs = ();
1042 my ($url_, $rev_, $uuid_, $gs_) =
1043 working_head_info('HEAD', \@refs);
1044 my ($linear_refs_, $parents_) =
1045 linearize_history($gs_, \@refs);
1046 if (scalar(@$linear_refs) !=
1047 scalar(@$linear_refs_)) {
1048 fatal "# of revisions changed ",
1049 "\nbefore:\n",
1050 join("\n", @$linear_refs),
1051 "\n\nafter:\n",
1052 join("\n", @$linear_refs_), "\n",
1053 'If you are attempting to commit ',
1054 "merges, try running:\n\t",
1055 'git rebase --interactive',
1056 '--preserve-merges ',
1057 $gs->refname,
1058 "\nBefore dcommitting";
1059 }
1060 if ($url_ ne $expect_url) {
1061 if ($url_ eq $gs->metadata_url) {
1062 print
1063 "Accepting rewritten URL:",
1064 " $url_\n";
1065 } else {
1066 fatal
1067 "URL mismatch after rebase:",
1068 " $url_ != $expect_url";
1069 }
1070 }
1071 if ($uuid_ ne $uuid) {
1072 fatal "uuid mismatch after rebase: ",
1073 "$uuid_ != $uuid";
1074 }
1075 # remap parents
1076 my (%p, @l, $i);
1077 for ($i = 0; $i < scalar @$linear_refs; $i++) {
1078 my $new = $linear_refs_->[$i] or next;
1079 $p{$new} =
1080 $parents->{$linear_refs->[$i]};
1081 push @l, $new;
1082 }
1083 $parents = \%p;
1084 $linear_refs = \@l;
1085 undef $last_rev;
1086 }
1087 }
1088 }
1089 if ($old_head) {
1091 my $new_head = command_oneline(qw/rev-parse HEAD/);
1092 my $new_is_symbolic = eval {
1093 command_oneline(qw/symbolic-ref -q HEAD/);
1094 };
1095 if ($new_is_symbolic) {
1096 print "dcommitted the branch ", $head, "\n";
1097 } else {
1098 print "dcommitted on a detached HEAD because you gave ",
1099 "a revision argument.\n",
1100 "The rewritten commit is: ", $new_head, "\n";
1101 }
1102 command(['checkout', $old_head], STDERR => 0);
1103 }
1104 unlink $gs->{index};
1106}
1107sub cmd_branch {
1109 my ($branch_name, $head) = @_;
1110 unless (defined $branch_name && length $branch_name) {
1112 die(($_tag ? "tag" : "branch") . " name required\n");
1113 }
1114 $head ||= 'HEAD';
1115 my (undef, $rev, undef, $gs) = working_head_info($head);
1117 my $src = $gs->full_pushurl;
1118 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
1120 my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
1121 my $glob;
1122 if ($#{$allglobs} == 0) {
1123 $glob = $allglobs->[0];
1124 } else {
1125 unless(defined $_branch_dest) {
1126 die "Multiple ",
1127 $_tag ? "tag" : "branch",
1128 " paths defined for Subversion repository.\n",
1129 "You must specify where you want to create the ",
1130 $_tag ? "tag" : "branch",
1131 " with the --destination argument.\n";
1132 }
1133 foreach my $g (@{$allglobs}) {
1134 my $re = Git::SVN::Editor::glob2pat($g->{path}->{left});
1135 if ($_branch_dest =~ /$re/) {
1136 $glob = $g;
1137 last;
1138 }
1139 }
1140 unless (defined $glob) {
1141 my $dest_re = qr/\b\Q$_branch_dest\E\b/;
1142 foreach my $g (@{$allglobs}) {
1143 $g->{path}->{left} =~ /$dest_re/ or next;
1144 if (defined $glob) {
1145 die "Ambiguous destination: ",
1146 $_branch_dest, "\nmatches both '",
1147 $glob->{path}->{left}, "' and '",
1148 $g->{path}->{left}, "'\n";
1149 }
1150 $glob = $g;
1151 }
1152 unless (defined $glob) {
1153 die "Unknown ",
1154 $_tag ? "tag" : "branch",
1155 " destination $_branch_dest\n";
1156 }
1157 }
1158 }
1159 my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
1160 my $url;
1161 if (defined $_commit_url) {
1162 $url = $_commit_url;
1163 } else {
1164 $url = eval { command_oneline('config', '--get',
1165 "svn-remote.$gs->{repo_id}.commiturl") };
1166 if (!$url) {
1167 $url = $remote->{pushurl} || $remote->{url};
1168 }
1169 }
1170 my $dst = join '/', $url, $lft, $branch_name, ($rgt || ());
1171 if ($dst =~ /^https:/ && $src =~ /^http:/) {
1173 $src=~s/^http:/https:/;
1174 }
1175 ::_req_svn();
1177 require SVN::Client;
1178 my ($config, $baton, undef) = Git::SVN::Ra::prepare_config_once();
1180 my $ctx = SVN::Client->new(
1181 auth => $baton,
1182 config => $config,
1183 log_msg => sub {
1184 ${ $_[0] } = defined $_message
1185 ? $_message
1186 : 'Create ' . ($_tag ? 'tag ' : 'branch ' )
1187 . $branch_name;
1188 },
1189 );
1190 eval {
1192 $ctx->ls($dst, 'HEAD', 0);
1193 } and die "branch ${branch_name} already exists\n";
1194 if ($_parents) {
1196 mk_parent_dirs($ctx, $dst);
1197 }
1198 print "Copying ${src} at r${rev} to ${dst}...\n";
1200 $ctx->copy($src, $rev, $dst)
1201 unless $_dry_run;
1202 # Release resources held by ctx before creating another SVN::Ra
1204 # so destruction is orderly. This seems necessary with SVN 1.9.5
1205 # to avoid segfaults.
1206 $ctx = undef;
1207 $gs->fetch_all;
1209}
1210sub mk_parent_dirs {
1212 my ($ctx, $parent) = @_;
1213 $parent =~ s{/[^/]*$}{};
1214 if (!eval{$ctx->ls($parent, 'HEAD', 0)}) {
1216 mk_parent_dirs($ctx, $parent);
1217 print "Creating parent folder ${parent} ...\n";
1218 $ctx->mkdir($parent) unless $_dry_run;
1219 }
1220}
1221sub cmd_find_rev {
1223 my $revision_or_hash = shift or die "SVN or git revision required ",
1224 "as a command-line argument\n";
1225 my $result;
1226 if ($revision_or_hash =~ /^r\d+$/) {
1227 my $head = shift;
1228 $head ||= 'HEAD';
1229 my @refs;
1230 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
1231 unless ($gs) {
1232 die "Unable to determine upstream SVN information from ",
1233 "$head history\n";
1234 }
1235 my $desired_revision = substr($revision_or_hash, 1);
1236 if ($_before) {
1237 $result = $gs->find_rev_before($desired_revision, 1);
1238 } elsif ($_after) {
1239 $result = $gs->find_rev_after($desired_revision, 1);
1240 } else {
1241 $result = $gs->rev_map_get($desired_revision, $uuid);
1242 }
1243 } else {
1244 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
1245 $result = $rev;
1246 }
1247 print "$result\n" if $result;
1248}
1249sub auto_create_empty_directories {
1251 my ($gs) = @_;
1252 my $var = eval { command_oneline('config', '--get', '--bool',
1253 "svn-remote.$gs->{repo_id}.automkdirs") };
1254 # By default, create empty directories by consulting the unhandled log,
1255 # but allow setting it to 'false' to skip it.
1256 return !($var && $var eq 'false');
1257}
1258sub cmd_rebase {
1260 command_noisy(qw/update-index --refresh/);
1261 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1262 unless ($gs) {
1263 die "Unable to determine upstream SVN information from ",
1264 "working tree history\n";
1265 }
1266 if ($_dry_run) {
1267 print "Remote Branch: " . $gs->refname . "\n";
1268 print "SVN URL: " . $url . "\n";
1269 return;
1270 }
1271 if (command(qw/diff-index HEAD --/)) {
1272 print STDERR "Cannot rebase with uncommitted changes:\n";
1273 command_noisy('status');
1274 exit 1;
1275 }
1276 unless ($_local) {
1277 # rebase will checkout for us, so no need to do it explicitly
1278 $_no_checkout = 'true';
1279 $_fetch_all ? $gs->fetch_all : $gs->fetch;
1280 }
1281 command_noisy(rebase_cmd(), $gs->refname);
1282 if (auto_create_empty_directories($gs)) {
1283 $gs->mkemptydirs;
1284 }
1285}
1286sub cmd_show_ignore {
1288 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1289 $gs ||= Git::SVN->new;
1290 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1291 $gs->prop_walk($gs->path, $r, sub {
1292 my ($gs, $path, $props) = @_;
1293 print STDOUT "\n# $path\n";
1294 my $s = $props->{'svn:ignore'} or return;
1295 $s =~ s/[\r\n]+/\n/g;
1296 $s =~ s/^\n+//;
1297 chomp $s;
1298 $s =~ s#^#$path#gm;
1299 print STDOUT "$s\n";
1300 });
1301}
1302sub cmd_show_externals {
1304 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1305 $gs ||= Git::SVN->new;
1306 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1307 $gs->prop_walk($gs->path, $r, sub {
1308 my ($gs, $path, $props) = @_;
1309 print STDOUT "\n# $path\n";
1310 my $s = $props->{'svn:externals'} or return;
1311 $s =~ s/[\r\n]+/\n/g;
1312 chomp $s;
1313 $s =~ s#^#$path#gm;
1314 print STDOUT "$s\n";
1315 });
1316}
1317sub cmd_create_ignore {
1319 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1320 $gs ||= Git::SVN->new;
1321 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1322 $gs->prop_walk($gs->path, $r, sub {
1323 my ($gs, $path, $props) = @_;
1324 # $path is of the form /path/to/dir/
1325 $path = '.' . $path;
1326 # SVN can have attributes on empty directories,
1327 # which git won't track
1328 mkpath([$path]) unless -d $path;
1329 my $ignore = $path . '.gitignore';
1330 my $s = $props->{'svn:ignore'} or return;
1331 open(GITIGNORE, '>', $ignore)
1332 or fatal("Failed to open `$ignore' for writing: $!");
1333 $s =~ s/[\r\n]+/\n/g;
1334 $s =~ s/^\n+//;
1335 chomp $s;
1336 # Prefix all patterns so that the ignore doesn't apply
1337 # to sub-directories.
1338 $s =~ s#^#/#gm;
1339 print GITIGNORE "$s\n";
1340 close(GITIGNORE)
1341 or fatal("Failed to close `$ignore': $!");
1342 command_noisy('add', '-f', $ignore);
1343 });
1344}
1345sub cmd_mkdirs {
1347 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1348 $gs ||= Git::SVN->new;
1349 $gs->mkemptydirs($_revision);
1350}
1351# get_svnprops(PATH)
1353# ------------------
1354# Helper for cmd_propget and cmd_proplist below.
1355sub get_svnprops {
1356 my $path = shift;
1357 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1358 $gs ||= Git::SVN->new;
1359 # prefix THE PATH by the sub-directory from which the user
1361 # invoked us.
1362 $path = $cmd_dir_prefix . $path;
1363 fatal("No such file or directory: $path") unless -e $path;
1364 my $is_dir = -d $path ? 1 : 0;
1365 $path = join_paths($gs->path, $path);
1366 # canonicalize the path (otherwise libsvn will abort or fail to
1368 # find the file)
1369 $path = canonicalize_path($path);
1370 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1372 my $props;
1373 if ($is_dir) {
1374 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
1375 }
1376 else {
1377 (undef, $props) = $gs->ra->get_file($path, $r, undef);
1378 }
1379 return $props;
1380}
1381# cmd_propget (PROP, PATH)
1383# ------------------------
1384# Print the SVN property PROP for PATH.
1385sub cmd_propget {
1386 my ($prop, $path) = @_;
1387 $path = '.' if not defined $path;
1388 usage(1) if not defined $prop;
1389 my $props = get_svnprops($path);
1390 if (not defined $props->{$prop}) {
1391 fatal("`$path' does not have a `$prop' SVN property.");
1392 }
1393 print $props->{$prop} . "\n";
1394}
1395# cmd_propset (PROPNAME, PROPVAL, PATH)
1397# ------------------------
1398# Adjust the SVN property PROPNAME to PROPVAL for PATH.
1399sub cmd_propset {
1400 my ($propname, $propval, $path) = @_;
1401 $path = '.' if not defined $path;
1402 $path = $cmd_dir_prefix . $path;
1403 usage(1) if not defined $propname;
1404 usage(1) if not defined $propval;
1405 my $file = basename($path);
1406 my $dn = dirname($path);
1407 my $cur_props = Git::SVN::Editor::check_attr( "svn-properties", $path );
1408 my @new_props;
1409 if (!$cur_props || $cur_props eq "unset" || $cur_props eq "" || $cur_props eq "set") {
1410 push @new_props, "$propname=$propval";
1411 } else {
1412 # TODO: handle combining properties better
1413 my @props = split(/;/, $cur_props);
1414 my $replaced_prop;
1415 foreach my $prop (@props) {
1416 # Parse 'name=value' syntax and set the property.
1417 if ($prop =~ /([^=]+)=(.*)/) {
1418 my ($n,$v) = ($1,$2);
1419 if ($n eq $propname) {
1420 $v = $propval;
1421 $replaced_prop = 1;
1422 }
1423 push @new_props, "$n=$v";
1424 }
1425 }
1426 if (!$replaced_prop) {
1427 push @new_props, "$propname=$propval";
1428 }
1429 }
1430 my $attrfile = "$dn/.gitattributes";
1431 open my $attrfh, '>>', $attrfile or die "Can't open $attrfile: $!\n";
1432 # TODO: don't simply append here if $file already has svn-properties
1433 my $new_props = join(';', @new_props);
1434 print $attrfh "$file svn-properties=$new_props\n" or
1435 die "write to $attrfile: $!\n";
1436 close $attrfh or die "close $attrfile: $!\n";
1437}
1438# cmd_proplist (PATH)
1440# -------------------
1441# Print the list of SVN properties for PATH.
1442sub cmd_proplist {
1443 my $path = shift;
1444 $path = '.' if not defined $path;
1445 my $props = get_svnprops($path);
1446 print "Properties on '$path':\n";
1447 foreach (sort keys %{$props}) {
1448 print " $_\n";
1449 }
1450}
1451sub cmd_multi_init {
1453 my $url = shift;
1454 unless (defined $_trunk || @_branches || @_tags) {
1455 usage(1);
1456 }
1457 $_prefix = 'origin/' unless defined $_prefix;
1459 if (defined $url) {
1460 $url = canonicalize_url($url);
1461 init_subdir(@_);
1462 }
1463 do_git_init_db();
1464 if (defined $_trunk) {
1465 $_trunk =~ s#^/+##;
1466 my $trunk_ref = 'refs/remotes/' . $_prefix . 'trunk';
1467 # try both old-style and new-style lookups:
1468 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
1469 unless ($gs_trunk) {
1470 my ($trunk_url, $trunk_path) =
1471 complete_svn_url($url, $_trunk);
1472 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
1473 undef, $trunk_ref);
1474 }
1475 }
1476 return unless @_branches || @_tags;
1477 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
1478 foreach my $path (@_branches) {
1479 complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
1480 }
1481 foreach my $path (@_tags) {
1482 complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
1483 }
1484}
1485sub cmd_multi_fetch {
1487 $Git::SVN::no_reuse_existing = undef;
1488 my $remotes = Git::SVN::read_all_remotes();
1489 foreach my $repo_id (sort keys %$remotes) {
1490 if ($remotes->{$repo_id}->{url}) {
1491 Git::SVN::fetch_all($repo_id, $remotes);
1492 }
1493 }
1494}
1495# this command is special because it requires no metadata
1497sub cmd_commit_diff {
1498 my ($ta, $tb, $url) = @_;
1499 my $usage = "usage: $0 commit-diff -r<revision> ".
1500 "<tree-ish> <tree-ish> [<URL>]";
1501 fatal($usage) if (!defined $ta || !defined $tb);
1502 my $svn_path = '';
1503 if (!defined $url) {
1504 my $gs = eval { Git::SVN->new };
1505 if (!$gs) {
1506 fatal("Needed URL or usable git-svn --id in ",
1507 "the command-line\n", $usage);
1508 }
1509 $url = $gs->url;
1510 $svn_path = $gs->path;
1511 }
1512 unless (defined $_revision) {
1513 fatal("-r|--revision is a required argument\n", $usage);
1514 }
1515 if (defined $_message && defined $_file) {
1516 fatal("Both --message/-m and --file/-F specified ",
1517 "for the commit message.\n",
1518 "I have no idea what you mean");
1519 }
1520 if (defined $_file) {
1521 $_message = file_to_s($_file);
1522 } else {
1523 $_message ||= get_commit_entry($tb)->{log};
1524 }
1525 my $ra ||= Git::SVN::Ra->new($url);
1526 my $r = $_revision;
1527 if ($r eq 'HEAD') {
1528 $r = $ra->get_latest_revnum;
1529 } elsif ($r !~ /^\d+$/) {
1530 die "revision argument: $r not understood by git-svn\n";
1531 }
1532 my %ed_opts = ( r => $r,
1533 log => $_message,
1534 ra => $ra,
1535 tree_a => $ta,
1536 tree_b => $tb,
1537 editor_cb => sub { print "Committed r$_[0]\n" },
1538 svn_path => $svn_path );
1539 if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
1540 print "No changes\n$ta == $tb\n";
1541 }
1542}
1543sub cmd_info {
1545 my $path_arg = defined($_[0]) ? $_[0] : '.';
1546 my $path = $path_arg;
1547 if (File::Spec->file_name_is_absolute($path)) {
1548 $path = canonicalize_path($path);
1549 my $toplevel = eval {
1551 my @cmd = qw/rev-parse --show-toplevel/;
1552 command_oneline(\@cmd, STDERR => 0);
1553 };
1554 # remove $toplevel from the absolute path:
1556 my ($vol, $dirs, $file) = File::Spec->splitpath($path);
1557 my (undef, $tdirs, $tfile) = File::Spec->splitpath($toplevel);
1558 my @dirs = File::Spec->splitdir($dirs);
1559 my @tdirs = File::Spec->splitdir($tdirs);
1560 pop @dirs if $dirs[-1] eq '';
1561 pop @tdirs if $tdirs[-1] eq '';
1562 push @dirs, $file;
1563 push @tdirs, $tfile;
1564 while (@tdirs && @dirs && $tdirs[0] eq $dirs[0]) {
1565 shift @dirs;
1566 shift @tdirs;
1567 }
1568 $dirs = File::Spec->catdir(@dirs);
1569 $path = File::Spec->catpath($vol, $dirs);
1570 $path = canonicalize_path($path);
1572 } else {
1573 $path = canonicalize_path($cmd_dir_prefix . $path);
1574 }
1575 if (exists $_[1]) {
1576 die "Too many arguments specified\n";
1577 }
1578 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
1580 if (!$file_type && !$diff_status) {
1582 print STDERR "svn: '$path' is not under version control\n";
1583 exit 1;
1584 }
1585 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1587 unless ($gs) {
1588 die "Unable to determine upstream SVN information from ",
1589 "working tree history\n";
1590 }
1591 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
1593 $path = "." if $path eq "";
1594 my $full_url = canonicalize_url( add_path_to_url( $url, $path ) );
1596 if ($_url) {
1598 print "$full_url\n";
1599 return;
1600 }
1601 my $result = "Path: $path_arg\n";
1603 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
1604 $result .= "URL: $full_url\n";
1605 eval {
1607 my $repos_root = $gs->repos_root;
1608 Git::SVN::remove_username($repos_root);
1609 $result .= "Repository Root: " . canonicalize_url($repos_root) . "\n";
1610 };
1611 if ($@) {
1612 $result .= "Repository Root: (offline)\n";
1613 }
1614 ::_req_svn();
1615 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
1616 (::compare_svn_version('1.5.4') <= 0 || $file_type ne "dir");
1617 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
1618 $result .= "Node Kind: " .
1620 ($file_type eq "dir" ? "directory" : "file") . "\n";
1621 my $schedule = $diff_status eq "A"
1623 ? "add"
1624 : ($diff_status eq "D" ? "delete" : "normal");
1625 $result .= "Schedule: $schedule\n";
1626 if ($diff_status eq "A") {
1628 print $result, "\n";
1629 return;
1630 }
1631 my ($lc_author, $lc_rev, $lc_date_utc);
1633 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $path);
1634 my $log = command_output_pipe(@args);
1635 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
1636 while (<$log>) {
1637 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
1638 $lc_author = $1;
1639 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
1640 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
1641 (undef, $lc_rev, undef) = ::extract_metadata($1);
1642 }
1643 }
1644 close $log;
1645 Git::SVN::Log::set_local_timezone();
1647 $result .= "Last Changed Author: $lc_author\n";
1649 $result .= "Last Changed Rev: $lc_rev\n";
1650 $result .= "Last Changed Date: " .
1651 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
1652 if ($file_type ne "dir") {
1654 my $text_last_updated_date =
1655 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
1656 $result .=
1657 "Text Last Updated: " .
1658 Git::SVN::Log::format_svn_date($text_last_updated_date) .
1659 "\n";
1660 my $checksum;
1661 if ($diff_status eq "D") {
1662 my ($fh, $ctx) =
1663 command_output_pipe(qw(cat-file blob), "HEAD:$path");
1664 if ($file_type eq "link") {
1665 my $file_name = <$fh>;
1666 $checksum = md5sum("link $file_name");
1667 } else {
1668 $checksum = md5sum($fh);
1669 }
1670 command_close_pipe($fh, $ctx);
1671 } elsif ($file_type eq "link") {
1672 my $file_name =
1673 command(qw(cat-file blob), "HEAD:$path");
1674 $checksum =
1675 md5sum("link " . $file_name);
1676 } else {
1677 open FILE, "<", $path or die $!;
1678 $checksum = md5sum(\*FILE);
1679 close FILE or die $!;
1680 }
1681 $result .= "Checksum: " . $checksum . "\n";
1682 }
1683 print $result, "\n";
1685}
1686sub cmd_reset {
1688 my $target = shift || $_revision or die "SVN revision required\n";
1689 $target = $1 if $target =~ /^r(\d+)$/;
1690 $target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
1691 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1692 unless ($gs) {
1693 die "Unable to determine upstream SVN information from ".
1694 "history\n";
1695 }
1696 my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
1697 die "Cannot find SVN revision $target\n" unless defined($c);
1698 $gs->rev_map_set($r, $c, 'reset', $uuid);
1699 print "r$r = $c ($gs->{ref_id})\n";
1700}
1701sub cmd_gc {
1703 require File::Find;
1704 if (!can_compress()) {
1705 warn "Compress::Zlib could not be found; unhandled.log " .
1706 "files will not be compressed.\n";
1707 }
1708 File::Find::find({ wanted => \&gc_directory, no_chdir => 1},
1709 Git::SVN::svn_dir());
1710}
1711########################### utility functions #########################
1713sub rebase_cmd {
1715 my @cmd = qw/rebase/;
1716 push @cmd, '-v' if $_verbose;
1717 push @cmd, qw/--merge/ if $_merge;
1718 push @cmd, "--strategy=$_strategy" if $_strategy;
1719 push @cmd, "--preserve-merges" if $_preserve_merges;
1720 @cmd;
1721}
1722sub post_fetch_checkout {
1724 return if $_no_checkout;
1725 return if verify_ref('HEAD^0');
1726 my $gs = $Git::SVN::_head or return;
1727 # look for "trunk" ref if it exists
1729 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
1730 my $fetch = $remote->{fetch};
1731 if ($fetch) {
1732 foreach my $p (keys %$fetch) {
1733 basename($fetch->{$p}) eq 'trunk' or next;
1734 $gs = Git::SVN->new($fetch->{$p}, $gs->{repo_id}, $p);
1735 last;
1736 }
1737 }
1738 command_noisy(qw(update-ref HEAD), $gs->refname);
1740 return unless verify_ref('HEAD^0');
1741 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
1743 my $index = command_oneline(qw(rev-parse --git-path index));
1744 return if -f $index;
1745 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
1747 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
1748 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
1749 print STDERR "Checked out HEAD:\n ",
1750 $gs->full_url, " r", $gs->last_rev, "\n";
1751 if (auto_create_empty_directories($gs)) {
1752 $gs->mkemptydirs($gs->last_rev);
1753 }
1754}
1755sub complete_svn_url {
1757 my ($url, $path) = @_;
1758 if ($path =~ m#^[a-z\+]+://#i) { # path is a URL
1760 $path = canonicalize_url($path);
1761 } else {
1762 $path = canonicalize_path($path);
1763 if (!defined $url || $url !~ m#^[a-z\+]+://#i) {
1764 fatal("E: '$path' is not a complete URL ",
1765 "and a separate URL is not specified");
1766 }
1767 return ($url, $path);
1768 }
1769 return ($path, '');
1770}
1771sub complete_url_ls_init {
1773 my ($ra, $repo_path, $switch, $pfx) = @_;
1774 unless ($repo_path) {
1775 print STDERR "W: $switch not specified\n";
1776 return;
1777 }
1778 if ($repo_path =~ m#^[a-z\+]+://#i) {
1779 $repo_path = canonicalize_url($repo_path);
1780 $ra = Git::SVN::Ra->new($repo_path);
1781 $repo_path = '';
1782 } else {
1783 $repo_path = canonicalize_path($repo_path);
1784 $repo_path =~ s#^/+##;
1785 unless ($ra) {
1786 fatal("E: '$repo_path' is not a complete URL ",
1787 "and a separate URL is not specified");
1788 }
1789 }
1790 my $url = $ra->url;
1791 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
1792 my $k = "svn-remote.$gs->{repo_id}.url";
1793 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
1794 if ($orig_url && ($orig_url ne $gs->url)) {
1795 die "$k already set: $orig_url\n",
1796 "wanted to set to: $gs->url\n";
1797 }
1798 command_oneline('config', $k, $gs->url) unless $orig_url;
1799 my $remote_path = join_paths( $gs->path, $repo_path );
1801 $remote_path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
1802 $remote_path =~ s#^/##g;
1803 $remote_path .= "/*" if $remote_path !~ /\*/;
1804 my ($n) = ($switch =~ /^--(\w+)/);
1805 if (length $pfx && $pfx !~ m#/$#) {
1806 die "--prefix='$pfx' must have a trailing slash '/'\n";
1807 }
1808 command_noisy('config',
1809 '--add',
1810 "svn-remote.$gs->{repo_id}.$n",
1811 "$remote_path:refs/remotes/$pfx*" .
1812 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
1813}
1814sub verify_ref {
1816 my ($ref) = @_;
1817 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1818 { STDERR => 0 }); };
1819}
1820sub get_tree_from_treeish {
1822 my ($treeish) = @_;
1823 # $treeish can be a symbolic ref, too:
1824 my $type = command_oneline(qw/cat-file -t/, $treeish);
1825 my $expected;
1826 while ($type eq 'tag') {
1827 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1828 }
1829 if ($type eq 'commit') {
1830 $expected = (grep /^tree /, command(qw/cat-file commit/,
1831 $treeish))[0];
1832 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1833 die "Unable to get tree from $treeish\n" unless $expected;
1834 } elsif ($type eq 'tree') {
1835 $expected = $treeish;
1836 } else {
1837 die "$treeish is a $type, expected tree, tag or commit\n";
1838 }
1839 return $expected;
1840}
1841sub get_commit_entry {
1843 my ($treeish) = shift;
1844 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1845 my @git_path = qw(rev-parse --git-path);
1846 my $commit_editmsg = command_oneline(@git_path, 'COMMIT_EDITMSG');
1847 my $commit_msg = command_oneline(@git_path, 'COMMIT_MSG');
1848 open my $log_fh, '>', $commit_editmsg or croak $!;
1849 my $type = command_oneline(qw/cat-file -t/, $treeish);
1851 if ($type eq 'commit' || $type eq 'tag') {
1852 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1853 $type, $treeish);
1854 my $in_msg = 0;
1855 my $author;
1856 my $saw_from = 0;
1857 my $msgbuf = "";
1858 while (<$msg_fh>) {
1859 if (!$in_msg) {
1860 $in_msg = 1 if (/^$/);
1861 $author = $1 if (/^author (.*>)/);
1862 } elsif (/^git-svn-id: /) {
1863 # skip this for now, we regenerate the
1864 # correct one on re-fetch anyways
1865 # TODO: set *:merge properties or like...
1866 } else {
1867 if (/^From:/ || /^Signed-off-by:/) {
1868 $saw_from = 1;
1869 }
1870 $msgbuf .= $_;
1871 }
1872 }
1873 $msgbuf =~ s/\s+$//s;
1874 $msgbuf =~ s/\r\n/\n/sg; # SVN 1.6+ disallows CRLF
1875 if ($Git::SVN::_add_author_from && defined($author)
1876 && !$saw_from) {
1877 $msgbuf .= "\n\nFrom: $author";
1878 }
1879 print $log_fh $msgbuf or croak $!;
1880 command_close_pipe($msg_fh, $ctx);
1881 }
1882 close $log_fh or croak $!;
1883 if ($_edit || ($type eq 'tree')) {
1885 chomp(my $editor = command_oneline(qw(var GIT_EDITOR)));
1886 system('sh', '-c', $editor.' "$@"', $editor, $commit_editmsg);
1887 }
1888 rename $commit_editmsg, $commit_msg or croak $!;
1889 {
1890 require Encode;
1891 # SVN requires messages to be UTF-8 when entering the repo
1892 open $log_fh, '<', $commit_msg or croak $!;
1893 binmode $log_fh;
1894 chomp($log_entry{log} = get_record($log_fh, undef));
1895 my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
1897 my $msg = $log_entry{log};
1898 eval { $msg = Encode::decode($enc, $msg, 1) };
1900 if ($@) {
1901 die "Could not decode as $enc:\n", $msg,
1902 "\nPerhaps you need to set i18n.commitencoding\n";
1903 }
1904 eval { $msg = Encode::encode('UTF-8', $msg, 1) };
1906 die "Could not encode as UTF-8:\n$msg\n" if $@;
1907 $log_entry{log} = $msg;
1909 close $log_fh or croak $!;
1911 }
1912 unlink $commit_msg;
1913 \%log_entry;
1914}
1915sub s_to_file {
1917 my ($str, $file, $mode) = @_;
1918 open my $fd,'>',$file or croak $!;
1919 print $fd $str,"\n" or croak $!;
1920 close $fd or croak $!;
1921 chmod ($mode &~ umask, $file) if (defined $mode);
1922}
1923sub file_to_s {
1925 my $file = shift;
1926 open my $fd,'<',$file or croak "$!: file: $file\n";
1927 local $/;
1928 my $ret = <$fd>;
1929 close $fd or croak $!;
1930 $ret =~ s/\s*$//s;
1931 return $ret;
1932}
1933# '<svn username> = real-name <email address>' mapping based on git-svnimport:
1935sub load_authors {
1936 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1937 my $log = $cmd eq 'log';
1938 while (<$authors>) {
1939 chomp;
1940 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.*)>\s*$/;
1941 my ($user, $name, $email) = ($1, $2, $3);
1942 if ($log) {
1943 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1944 } else {
1945 $users{$user} = [$name, $email];
1946 }
1947 }
1948 close $authors or croak $!;
1949}
1950# convert GetOpt::Long specs for use by git-config
1952sub read_git_config {
1953 my $opts = shift;
1954 my @config_only;
1955 foreach my $o (keys %$opts) {
1956 # if we have mixedCase and a long option-only, then
1957 # it's a config-only variable that we don't need for
1958 # the command-line.
1959 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1960 my $v = $opts->{$o};
1961 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1962 $key =~ s/-//g;
1963 my $arg = 'git config';
1964 $arg .= ' --int' if ($o =~ /[:=]i$/);
1965 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1966 if (ref $v eq 'ARRAY') {
1967 chomp(my @tmp = `$arg --get-all svn.$key`);
1968 @$v = @tmp if @tmp;
1969 } else {
1970 chomp(my $tmp = `$arg --get svn.$key`);
1971 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1972 $$v = $tmp;
1973 }
1974 }
1975 }
1976 delete @$opts{@config_only} if @config_only;
1977}
1978sub extract_metadata {
1980 my $id = shift or return (undef, undef, undef);
1981 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1982 \s([a-f\d\-]+)$/ix);
1983 if (!defined $rev || !$uuid || !$url) {
1984 # some of the original repositories I made had
1985 # identifiers like this:
1986 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
1987 }
1988 return ($url, $rev, $uuid);
1989}
1990sub cmt_metadata {
1992 return extract_metadata((grep(/^git-svn-id: /,
1993 command(qw/cat-file commit/, shift)))[-1]);
1994}
1995sub cmt_sha2rev_batch {
1997 my %s2r;
1998 my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
1999 my $list = shift;
2000 foreach my $sha (@{$list}) {
2002 my $first = 1;
2003 my $size = 0;
2004 print $out $sha, "\n";
2005 while (my $line = <$in>) {
2007 if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) {
2008 last;
2009 } elsif ($first &&
2010 $line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) {
2011 $first = 0;
2012 $size = $1;
2013 next;
2014 } elsif ($line =~ /^(git-svn-id: )/) {
2015 my (undef, $rev, undef) =
2016 extract_metadata($line);
2017 $s2r{$sha} = $rev;
2018 }
2019 $size -= length($line);
2021 last if ($size == 0);
2022 }
2023 }
2024 command_close_bidi_pipe($pid, $in, $out, $ctx);
2026 return \%s2r;
2028}
2029sub working_head_info {
2031 my ($head, $refs) = @_;
2032 my @args = qw/rev-list --first-parent --pretty=medium/;
2033 my ($fh, $ctx) = command_output_pipe(@args, $head, "--");
2034 my $hash;
2035 my %max;
2036 while (<$fh>) {
2037 if ( m{^commit ($::sha1)$} ) {
2038 unshift @$refs, $hash if $hash and $refs;
2039 $hash = $1;
2040 next;
2041 }
2042 next unless s{^\s*(git-svn-id:)}{$1};
2043 my ($url, $rev, $uuid) = extract_metadata($_);
2044 if (defined $url && defined $rev) {
2045 next if $max{$url} and $max{$url} < $rev;
2046 if (my $gs = Git::SVN->find_by_url($url)) {
2047 my $c = $gs->rev_map_get($rev, $uuid);
2048 if ($c && $c eq $hash) {
2049 close $fh; # break the pipe
2050 return ($url, $rev, $uuid, $gs);
2051 } else {
2052 $max{$url} ||= $gs->rev_map_max;
2053 }
2054 }
2055 }
2056 }
2057 command_close_pipe($fh, $ctx);
2058 (undef, undef, undef, undef);
2059}
2060sub read_commit_parents {
2062 my ($parents, $c) = @_;
2063 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
2064 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
2065 @{$parents->{$c}} = split(/ /, $p);
2066}
2067sub linearize_history {
2069 my ($gs, $refs) = @_;
2070 my %parents;
2071 foreach my $c (@$refs) {
2072 read_commit_parents(\%parents, $c);
2073 }
2074 my @linear_refs;
2076 my %skip = ();
2077 my $last_svn_commit = $gs->last_commit;
2078 foreach my $c (reverse @$refs) {
2079 next if $c eq $last_svn_commit;
2080 last if $skip{$c};
2081 unshift @linear_refs, $c;
2083 $skip{$c} = 1;
2084 # we only want the first parent to diff against for linear
2086 # history, we save the rest to inject when we finalize the
2087 # svn commit
2088 my $fp_a = verify_ref("$c~1");
2089 my $fp_b = shift @{$parents{$c}} if $parents{$c};
2090 if (!$fp_a || !$fp_b) {
2091 die "Commit $c\n",
2092 "has no parent commit, and therefore ",
2093 "nothing to diff against.\n",
2094 "You should be working from a repository ",
2095 "originally created by git-svn\n";
2096 }
2097 if ($fp_a ne $fp_b) {
2098 die "$c~1 = $fp_a, however parsing commit $c ",
2099 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
2100 }
2101 foreach my $p (@{$parents{$c}}) {
2103 $skip{$p} = 1;
2104 }
2105 }
2106 (\@linear_refs, \%parents);
2107}
2108sub find_file_type_and_diff_status {
2110 my ($path) = @_;
2111 return ('dir', '') if $path eq '';
2112 my $diff_output =
2114 command_oneline(qw(diff --cached --name-status --), $path) || "";
2115 my $diff_status = (split(' ', $diff_output))[0] || "";
2116 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
2118 return (undef, undef) if !$diff_status && !$ls_tree;
2120 if ($diff_status eq "A") {
2122 return ("link", $diff_status) if -l $path;
2123 return ("dir", $diff_status) if -d $path;
2124 return ("file", $diff_status);
2125 }
2126 my $mode = (split(' ', $ls_tree))[0] || "";
2128 return ("link", $diff_status) if $mode eq "120000";
2130 return ("dir", $diff_status) if $mode eq "040000";
2131 return ("file", $diff_status);
2132}
2133sub md5sum {
2135 my $arg = shift;
2136 my $ref = ref $arg;
2137 require Digest::MD5;
2138 my $md5 = Digest::MD5->new();
2139 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
2140 $md5->addfile($arg) or croak $!;
2141 } elsif ($ref eq 'SCALAR') {
2142 $md5->add($$arg) or croak $!;
2143 } elsif (!$ref) {
2144 $md5->add($arg) or croak $!;
2145 } else {
2146 fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
2147 }
2148 return $md5->hexdigest();
2149}
2150sub gc_directory {
2152 if (can_compress() && -f $_ && basename($_) eq "unhandled.log") {
2153 my $out_filename = $_ . ".gz";
2154 open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
2155 binmode $in_fh;
2156 my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
2157 die "Unable to open $out_filename: $!\n";
2158 my $res;
2160 while ($res = sysread($in_fh, my $str, 1024)) {
2161 $gz->gzwrite($str) or
2162 die "Unable to write: ".$gz->gzerror()."!\n";
2163 }
2164 no warnings 'once'; # $File::Find::name would warn
2165 unlink $_ or die "unlink $File::Find::name: $!\n";
2166 } elsif (-f $_ && basename($_) eq "index") {
2167 unlink $_ or die "unlink $_: $!\n";
2168 }
2169}
2170__END__
2172Data structures:
2174$remotes = { # returned by read_all_remotes()
2177 'svn' => {
2178 # svn-remote.svn.url=https://svn.musicpd.org
2179 url => 'https://svn.musicpd.org',
2180 # svn-remote.svn.fetch=mpd/trunk:trunk
2181 fetch => {
2182 'mpd/trunk' => 'trunk',
2183 },
2184 # svn-remote.svn.tags=mpd/tags/*:tags/*
2185 tags => {
2186 path => {
2187 left => 'mpd/tags',
2188 right => '',
2189 regex => qr!mpd/tags/([^/]+)$!,
2190 glob => 'tags/*',
2191 },
2192 ref => {
2193 left => 'tags',
2194 right => '',
2195 regex => qr!tags/([^/]+)$!,
2196 glob => 'tags/*',
2197 },
2198 }
2199 }
2200};
2201$log_entry hashref as returned by libsvn_log_entry()
2203{
2204 log => 'whitespace-formatted log entry
2205', # trailing newline is preserved
2206 revision => '8', # integer
2207 date => '2004-02-24T17:01:44.108345Z', # commit date
2208 author => 'committer name'
2209};
2210# this is generated by generate_diff();
2213@mods = array of diff-index line hashes, each element represents one line
2214 of diff-index output
2215diff-index line ($m hash)
2217{
2218 mode_a => first column of diff-index output, no leading ':',
2219 mode_b => second column of diff-index output,
2220 sha1_b => sha1sum of the final blob,
2221 chg => change type [MCRADT],
2222 file_a => original file name of a file (iff chg is 'C' or 'R')
2223 file_b => new/current file name of a file (any chg)
2224}
2225;
2226# retval of read_url_paths{,_all}();
2228$l_map = {
2229 # repository root url
2230 'https://svn.musicpd.org' => {
2231 # repository path # GIT_SVN_ID
2232 'mpd/trunk' => 'trunk',
2233 'mpd/tags/0.11.5' => 'tags/0.11.5',
2234 },
2235}
2236Notes:
2238 I don't trust the each() function on unless I created %hash myself
2239 because the internal iterator may not have started at base.