Documentation/describe: improve one-line summary
[git.git] / git-svn.perl
blobb6e2186cef0fcddc7c7b82378b07941d9f671a92
1 #!/usr/bin/perl
2 # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
3 # License: GPL v2 or later
4 use 5.008;
5 use warnings;
6 use strict;
7 use 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@@';
13 use Carp qw/croak/;
14 use Digest::MD5;
15 use IO::File qw//;
16 use File::Basename qw/dirname basename/;
17 use File::Path qw/mkpath/;
18 use File::Spec;
19 use File::Find;
20 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
21 use IPC::Open3;
22 use Memoize;
24 use Git::SVN;
25 use Git::SVN::Editor;
26 use Git::SVN::Fetcher;
27 use Git::SVN::Ra;
28 use Git::SVN::Prompt;
29 use Git::SVN::Log;
30 use Git::SVN::Migration;
32 use Git::SVN::Utils qw(
33 fatal
34 can_compress
35 canonicalize_path
36 canonicalize_url
37 join_paths
38 add_path_to_url
39 join_paths
42 use Git qw(
43 git_cmd_try
44 command
45 command_oneline
46 command_noisy
47 command_output_pipe
48 command_close_pipe
49 command_bidi_pipe
50 command_close_bidi_pipe
53 BEGIN {
54 Memoize::memoize 'Git::config';
55 Memoize::memoize 'Git::config_bool';
59 # From which subdir have we been invoked?
60 my $cmd_dir_prefix = eval {
61 command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
62 } || '';
64 $Git::SVN::Ra::_log_window_size = 100;
66 if (! exists $ENV{SVN_SSH} && exists $ENV{GIT_SSH}) {
67 $ENV{SVN_SSH} = $ENV{GIT_SSH};
70 if (exists $ENV{SVN_SSH} && $^O eq 'msys') {
71 $ENV{SVN_SSH} =~ s/\\/\\\\/g;
72 $ENV{SVN_SSH} =~ s/(.*)/"$1"/;
75 $Git::SVN::Log::TZ = $ENV{TZ};
76 $ENV{TZ} = 'UTC';
77 $| = 1; # unbuffer STDOUT
79 # All SVN commands do it. Otherwise we may die on SIGPIPE when the remote
80 # repository decides to close the connection which we expect to be kept alive.
81 $SIG{PIPE} = 'IGNORE';
83 # Given a dot separated version number, "subtract" it from
84 # the SVN::Core::VERSION; non-negaitive return means the SVN::Core
85 # is at least at the version the caller asked for.
86 sub compare_svn_version {
87 my (@ours) = split(/\./, $SVN::Core::VERSION);
88 my (@theirs) = split(/\./, $_[0]);
89 my ($i, $diff);
91 for ($i = 0; $i < @ours && $i < @theirs; $i++) {
92 $diff = $ours[$i] - $theirs[$i];
93 return $diff if ($diff);
95 return 1 if ($i < @ours);
96 return -1 if ($i < @theirs);
97 return 0;
100 sub _req_svn {
101 require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
102 require SVN::Ra;
103 require SVN::Delta;
104 if (::compare_svn_version('1.1.0') < 0) {
105 fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
109 $sha1 = qr/[a-f\d]{40}/;
110 $sha1_short = qr/[a-f\d]{4,40}/;
111 my ($_stdin, $_help, $_edit,
112 $_message, $_file, $_branch_dest,
113 $_template, $_shared,
114 $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
115 $_before, $_after,
116 $_merge, $_strategy, $_preserve_merges, $_dry_run, $_parents, $_local,
117 $_prefix, $_no_checkout, $_url, $_verbose,
118 $_commit_url, $_tag, $_merge_info, $_interactive);
120 # This is a refactoring artifact so Git::SVN can get at this git-svn switch.
121 sub opt_prefix { return $_prefix || '' }
123 $Git::SVN::Fetcher::_placeholder_filename = ".gitignore";
124 $_q ||= 0;
125 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
126 'config-dir=s' => \$Git::SVN::Ra::config_dir,
127 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
128 'ignore-paths=s' => \$Git::SVN::Fetcher::_ignore_regex,
129 'include-paths=s' => \$Git::SVN::Fetcher::_include_regex,
130 'ignore-refs=s' => \$Git::SVN::Ra::_ignore_refs_regex );
131 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
132 'authors-file|A=s' => \$_authors,
133 'authors-prog=s' => \$_authors_prog,
134 'repack:i' => \$Git::SVN::_repack,
135 'noMetadata' => \$Git::SVN::_no_metadata,
136 'useSvmProps' => \$Git::SVN::_use_svm_props,
137 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
138 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
139 'no-checkout' => \$_no_checkout,
140 'quiet|q+' => \$_q,
141 'repack-flags|repack-args|repack-opts=s' =>
142 \$Git::SVN::_repack_flags,
143 'use-log-author' => \$Git::SVN::_use_log_author,
144 'add-author-from' => \$Git::SVN::_add_author_from,
145 'localtime' => \$Git::SVN::_localtime,
146 %remote_opts );
148 my ($_trunk, @_tags, @_branches, $_stdlayout);
149 my %icv;
150 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
151 'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags,
152 'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix,
153 'stdlayout|s' => \$_stdlayout,
154 'minimize-url|m!' => \$Git::SVN::_minimize_url,
155 'no-metadata' => sub { $icv{noMetadata} = 1 },
156 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
157 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
158 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
159 'rewrite-uuid=s' => sub { $icv{rewriteUUID} = $_[1] },
160 %remote_opts );
161 my %cmt_opts = ( 'edit|e' => \$_edit,
162 'rmdir' => \$Git::SVN::Editor::_rmdir,
163 'find-copies-harder' => \$Git::SVN::Editor::_find_copies_harder,
164 'l=i' => \$Git::SVN::Editor::_rename_limit,
165 'copy-similarity|C=i'=> \$Git::SVN::Editor::_cp_similarity
168 my %cmd = (
169 fetch => [ \&cmd_fetch, "Download new revisions from SVN",
170 { 'revision|r=s' => \$_revision,
171 'fetch-all|all' => \$_fetch_all,
172 'parent|p' => \$_fetch_parent,
173 %fc_opts } ],
174 clone => [ \&cmd_clone, "Initialize and fetch revisions",
175 { 'revision|r=s' => \$_revision,
176 'preserve-empty-dirs' =>
177 \$Git::SVN::Fetcher::_preserve_empty_dirs,
178 'placeholder-filename=s' =>
179 \$Git::SVN::Fetcher::_placeholder_filename,
180 %fc_opts, %init_opts } ],
181 init => [ \&cmd_init, "Initialize a repo for tracking" .
182 " (requires URL argument)",
183 \%init_opts ],
184 'multi-init' => [ \&cmd_multi_init,
185 "Deprecated alias for ".
186 "'$0 init -T<trunk> -b<branches> -t<tags>'",
187 \%init_opts ],
188 dcommit => [ \&cmd_dcommit,
189 'Commit several diffs to merge with upstream',
190 { 'merge|m|M' => \$_merge,
191 'strategy|s=s' => \$_strategy,
192 'verbose|v' => \$_verbose,
193 'dry-run|n' => \$_dry_run,
194 'fetch-all|all' => \$_fetch_all,
195 'commit-url=s' => \$_commit_url,
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 svn:ignore',
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 'proplist' => [ \&cmd_proplist,
232 'List all properties of a file or directory',
233 { 'revision|r=i' => \$_revision } ],
234 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
235 { 'revision|r=i' => \$_revision
236 } ],
237 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
238 { 'revision|r=i' => \$_revision
239 } ],
240 'multi-fetch' => [ \&cmd_multi_fetch,
241 "Deprecated alias for $0 fetch --all",
242 { 'revision|r=s' => \$_revision, %fc_opts } ],
243 'migrate' => [ sub { },
244 # no-op, we automatically run this anyways,
245 'Migrate configuration/metadata/layout from
246 previous versions of git-svn',
247 { 'minimize' => \$Git::SVN::Migration::_minimize,
248 %remote_opts } ],
249 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
250 { 'limit=i' => \$Git::SVN::Log::limit,
251 'revision|r=s' => \$_revision,
252 'verbose|v' => \$Git::SVN::Log::verbose,
253 'incremental' => \$Git::SVN::Log::incremental,
254 'oneline' => \$Git::SVN::Log::oneline,
255 'show-commit' => \$Git::SVN::Log::show_commit,
256 'non-recursive' => \$Git::SVN::Log::non_recursive,
257 'authors-file|A=s' => \$_authors,
258 'color' => \$Git::SVN::Log::color,
259 'pager=s' => \$Git::SVN::Log::pager
260 } ],
261 'find-rev' => [ \&cmd_find_rev,
262 "Translate between SVN revision numbers and tree-ish",
263 { 'B|before' => \$_before,
264 'A|after' => \$_after } ],
265 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
266 { 'merge|m|M' => \$_merge,
267 'verbose|v' => \$_verbose,
268 'strategy|s=s' => \$_strategy,
269 'local|l' => \$_local,
270 'fetch-all|all' => \$_fetch_all,
271 'dry-run|n' => \$_dry_run,
272 'preserve-merges|p' => \$_preserve_merges,
273 %fc_opts } ],
274 'commit-diff' => [ \&cmd_commit_diff,
275 'Commit a diff between two trees',
276 { 'message|m=s' => \$_message,
277 'file|F=s' => \$_file,
278 'revision|r=s' => \$_revision,
279 %cmt_opts } ],
280 'info' => [ \&cmd_info,
281 "Show info about the latest SVN revision
282 on the current branch",
283 { 'url' => \$_url, } ],
284 'blame' => [ \&Git::SVN::Log::cmd_blame,
285 "Show what revision and author last modified each line of a file",
286 { 'git-format' => \$Git::SVN::Log::_git_format } ],
287 'reset' => [ \&cmd_reset,
288 "Undo fetches back to the specified SVN revision",
289 { 'revision|r=s' => \$_revision,
290 'parent|p' => \$_fetch_parent } ],
291 'gc' => [ \&cmd_gc,
292 "Compress unhandled.log files in .git/svn and remove " .
293 "index files in .git/svn",
294 {} ],
297 use Term::ReadLine;
298 package FakeTerm;
299 sub new {
300 my ($class, $reason) = @_;
301 return bless \$reason, shift;
303 sub readline {
304 my $self = shift;
305 die "Cannot use readline on FakeTerm: $$self";
307 package main;
309 my $term;
310 sub term_init {
311 $term = eval {
312 $ENV{"GIT_SVN_NOTTY"}
313 ? new Term::ReadLine 'git-svn', \*STDIN, \*STDOUT
314 : new Term::ReadLine 'git-svn';
316 if ($@) {
317 $term = new FakeTerm "$@: going non-interactive";
321 my $cmd;
322 for (my $i = 0; $i < @ARGV; $i++) {
323 if (defined $cmd{$ARGV[$i]}) {
324 $cmd = $ARGV[$i];
325 splice @ARGV, $i, 1;
326 last;
327 } elsif ($ARGV[$i] eq 'help') {
328 $cmd = $ARGV[$i+1];
329 usage(0);
333 # make sure we're always running at the top-level working directory
334 if ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
335 $ENV{GIT_DIR} ||= ".git";
336 } else {
337 my ($git_dir, $cdup);
338 git_cmd_try {
339 $git_dir = command_oneline([qw/rev-parse --git-dir/]);
340 } "Unable to find .git directory\n";
341 git_cmd_try {
342 $cdup = command_oneline(qw/rev-parse --show-cdup/);
343 chomp $cdup if ($cdup);
344 $cdup = "." unless ($cdup && length $cdup);
345 } "Already at toplevel, but $git_dir not found\n";
346 $ENV{GIT_DIR} = $git_dir;
347 chdir $cdup or die "Unable to chdir up to '$cdup'\n";
348 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
351 my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
353 read_git_config(\%opts);
354 if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
355 Getopt::Long::Configure('pass_through');
357 my $rv = GetOptions(%opts, 'h|H' => \$_help, 'version|V' => \$_version,
358 'minimize-connections' => \$Git::SVN::Migration::_minimize,
359 'id|i=s' => \$Git::SVN::default_ref_id,
360 'svn-remote|remote|R=s' => sub {
361 $Git::SVN::no_reuse_existing = 1;
362 $Git::SVN::default_repo_id = $_[1] });
363 exit 1 if (!$rv && $cmd && $cmd ne 'log');
365 usage(0) if $_help;
366 version() if $_version;
367 usage(1) unless defined $cmd;
368 load_authors() if $_authors;
369 if (defined $_authors_prog) {
370 $_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'";
373 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
374 Git::SVN::Migration::migration_check();
376 Git::SVN::init_vars();
377 eval {
378 Git::SVN::verify_remotes_sanity();
379 $cmd{$cmd}->[0]->(@ARGV);
380 post_fetch_checkout();
382 fatal $@ if $@;
383 exit 0;
385 ####################### primary functions ######################
386 sub usage {
387 my $exit = shift || 0;
388 my $fd = $exit ? \*STDERR : \*STDOUT;
389 print $fd <<"";
390 git-svn - bidirectional operations between a single Subversion tree and git
391 usage: git svn <command> [options] [arguments]\n
393 print $fd "Available commands:\n" unless $cmd;
395 foreach (sort keys %cmd) {
396 next if $cmd && $cmd ne $_;
397 next if /^multi-/; # don't show deprecated commands
398 print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
399 foreach (sort keys %{$cmd{$_}->[2]}) {
400 # mixed-case options are for .git/config only
401 next if /[A-Z]/ && /^[a-z]+$/i;
402 # prints out arguments as they should be passed:
403 my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
404 print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
405 "--$_" : "-$_" }
406 split /\|/,$_)," $x\n";
409 print $fd <<"";
410 \nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
411 arbitrary identifier if you're tracking multiple SVN branches/repositories in
412 one git repository and want to keep them separate. See git-svn(1) for more
413 information.
415 exit $exit;
418 sub version {
419 ::_req_svn();
420 print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
421 exit 0;
424 sub ask {
425 my ($prompt, %arg) = @_;
426 my $valid_re = $arg{valid_re};
427 my $default = $arg{default};
428 my $resp;
429 my $i = 0;
430 term_init() unless $term;
432 if ( !( defined($term->IN)
433 && defined( fileno($term->IN) )
434 && defined( $term->OUT )
435 && defined( fileno($term->OUT) ) ) ){
436 return defined($default) ? $default : undef;
439 while ($i++ < 10) {
440 $resp = $term->readline($prompt);
441 if (!defined $resp) { # EOF
442 print "\n";
443 return defined $default ? $default : undef;
445 if ($resp eq '' and defined $default) {
446 return $default;
448 if (!defined $valid_re or $resp =~ /$valid_re/) {
449 return $resp;
452 return undef;
455 sub do_git_init_db {
456 unless (-d $ENV{GIT_DIR}) {
457 my @init_db = ('init');
458 push @init_db, "--template=$_template" if defined $_template;
459 if (defined $_shared) {
460 if ($_shared =~ /[a-z]/) {
461 push @init_db, "--shared=$_shared";
462 } else {
463 push @init_db, "--shared";
466 command_noisy(@init_db);
467 $_repository = Git->repository(Repository => ".git");
469 my $set;
470 my $pfx = "svn-remote.$Git::SVN::default_repo_id";
471 foreach my $i (keys %icv) {
472 die "'$set' and '$i' cannot both be set\n" if $set;
473 next unless defined $icv{$i};
474 command_noisy('config', "$pfx.$i", $icv{$i});
475 $set = $i;
477 my $ignore_paths_regex = \$Git::SVN::Fetcher::_ignore_regex;
478 command_noisy('config', "$pfx.ignore-paths", $$ignore_paths_regex)
479 if defined $$ignore_paths_regex;
480 my $include_paths_regex = \$Git::SVN::Fetcher::_include_regex;
481 command_noisy('config', "$pfx.include-paths", $$include_paths_regex)
482 if defined $$include_paths_regex;
483 my $ignore_refs_regex = \$Git::SVN::Ra::_ignore_refs_regex;
484 command_noisy('config', "$pfx.ignore-refs", $$ignore_refs_regex)
485 if defined $$ignore_refs_regex;
487 if (defined $Git::SVN::Fetcher::_preserve_empty_dirs) {
488 my $fname = \$Git::SVN::Fetcher::_placeholder_filename;
489 command_noisy('config', "$pfx.preserve-empty-dirs", 'true');
490 command_noisy('config', "$pfx.placeholder-filename", $$fname);
494 sub init_subdir {
495 my $repo_path = shift or return;
496 mkpath([$repo_path]) unless -d $repo_path;
497 chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
498 $ENV{GIT_DIR} = '.git';
499 $_repository = Git->repository(Repository => $ENV{GIT_DIR});
502 sub cmd_clone {
503 my ($url, $path) = @_;
504 if (!defined $path &&
505 (defined $_trunk || @_branches || @_tags ||
506 defined $_stdlayout) &&
507 $url !~ m#^[a-z\+]+://#) {
508 $path = $url;
510 $path = basename($url) if !defined $path || !length $path;
511 my $authors_absolute = $_authors ? File::Spec->rel2abs($_authors) : "";
512 cmd_init($url, $path);
513 command_oneline('config', 'svn.authorsfile', $authors_absolute)
514 if $_authors;
515 Git::SVN::fetch_all($Git::SVN::default_repo_id);
518 sub cmd_init {
519 if (defined $_stdlayout) {
520 $_trunk = 'trunk' if (!defined $_trunk);
521 @_tags = 'tags' if (! @_tags);
522 @_branches = 'branches' if (! @_branches);
524 if (defined $_trunk || @_branches || @_tags) {
525 return cmd_multi_init(@_);
527 my $url = shift or die "SVN repository location required ",
528 "as a command-line argument\n";
529 $url = canonicalize_url($url);
530 init_subdir(@_);
531 do_git_init_db();
533 if ($Git::SVN::_minimize_url eq 'unset') {
534 $Git::SVN::_minimize_url = 0;
537 Git::SVN->init($url);
540 sub cmd_fetch {
541 if (grep /^\d+=./, @_) {
542 die "'<rev>=<commit>' fetch arguments are ",
543 "no longer supported.\n";
545 my ($remote) = @_;
546 if (@_ > 1) {
547 die "usage: $0 fetch [--all] [--parent] [svn-remote]\n";
549 $Git::SVN::no_reuse_existing = undef;
550 if ($_fetch_parent) {
551 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
552 unless ($gs) {
553 die "Unable to determine upstream SVN information from ",
554 "working tree history\n";
556 # just fetch, don't checkout.
557 $_no_checkout = 'true';
558 $_fetch_all ? $gs->fetch_all : $gs->fetch;
559 } elsif ($_fetch_all) {
560 cmd_multi_fetch();
561 } else {
562 $remote ||= $Git::SVN::default_repo_id;
563 Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
567 sub cmd_set_tree {
568 my (@commits) = @_;
569 if ($_stdin || !@commits) {
570 print "Reading from stdin...\n";
571 @commits = ();
572 while (<STDIN>) {
573 if (/\b($sha1_short)\b/o) {
574 unshift @commits, $1;
578 my @revs;
579 foreach my $c (@commits) {
580 my @tmp = command('rev-parse',$c);
581 if (scalar @tmp == 1) {
582 push @revs, $tmp[0];
583 } elsif (scalar @tmp > 1) {
584 push @revs, reverse(command('rev-list',@tmp));
585 } else {
586 fatal "Failed to rev-parse $c";
589 my $gs = Git::SVN->new;
590 my ($r_last, $cmt_last) = $gs->last_rev_commit;
591 $gs->fetch;
592 if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
593 fatal "There are new revisions that were fetched ",
594 "and need to be merged (or acknowledged) ",
595 "before committing.\nlast rev: $r_last\n",
596 " current: $gs->{last_rev}";
598 $gs->set_tree($_) foreach @revs;
599 print "Done committing ",scalar @revs," revisions to SVN\n";
600 unlink $gs->{index};
603 sub split_merge_info_range {
604 my ($range) = @_;
605 if ($range =~ /(\d+)-(\d+)/) {
606 return (int($1), int($2));
607 } else {
608 return (int($range), int($range));
612 sub combine_ranges {
613 my ($in) = @_;
615 my @fnums = ();
616 my @arr = split(/,/, $in);
617 for my $element (@arr) {
618 my ($start, $end) = split_merge_info_range($element);
619 push @fnums, $start;
622 my @sorted = @arr [ sort {
623 $fnums[$a] <=> $fnums[$b]
624 } 0..$#arr ];
626 my @return = ();
627 my $last = -1;
628 my $first = -1;
629 for my $element (@sorted) {
630 my ($start, $end) = split_merge_info_range($element);
632 if ($last == -1) {
633 $first = $start;
634 $last = $end;
635 next;
637 if ($start <= $last+1) {
638 if ($end > $last) {
639 $last = $end;
641 next;
643 if ($first == $last) {
644 push @return, "$first";
645 } else {
646 push @return, "$first-$last";
648 $first = $start;
649 $last = $end;
652 if ($first != -1) {
653 if ($first == $last) {
654 push @return, "$first";
655 } else {
656 push @return, "$first-$last";
660 return join(',', @return);
663 sub merge_revs_into_hash {
664 my ($hash, $minfo) = @_;
665 my @lines = split(' ', $minfo);
667 for my $line (@lines) {
668 my ($branchpath, $revs) = split(/:/, $line);
670 if (exists($hash->{$branchpath})) {
671 # Merge the two revision sets
672 my $combined = "$hash->{$branchpath},$revs";
673 $hash->{$branchpath} = combine_ranges($combined);
674 } else {
675 # Just do range combining for consolidation
676 $hash->{$branchpath} = combine_ranges($revs);
681 sub merge_merge_info {
682 my ($mergeinfo_one, $mergeinfo_two, $ignore_branch) = @_;
683 my %result_hash = ();
685 merge_revs_into_hash(\%result_hash, $mergeinfo_one);
686 merge_revs_into_hash(\%result_hash, $mergeinfo_two);
688 delete $result_hash{$ignore_branch} if $ignore_branch;
690 my $result = '';
691 # Sort below is for consistency's sake
692 for my $branchname (sort keys(%result_hash)) {
693 my $revlist = $result_hash{$branchname};
694 $result .= "$branchname:$revlist\n"
696 return $result;
699 sub populate_merge_info {
700 my ($d, $gs, $uuid, $linear_refs, $rewritten_parent) = @_;
702 my %parentshash;
703 read_commit_parents(\%parentshash, $d);
704 my @parents = @{$parentshash{$d}};
705 if ($#parents > 0) {
706 # Merge commit
707 my $all_parents_ok = 1;
708 my $aggregate_mergeinfo = '';
709 my $rooturl = $gs->repos_root;
710 my ($target_branch) = $gs->full_pushurl =~ /^\Q$rooturl\E(.*)/;
712 if (defined($rewritten_parent)) {
713 # Replace first parent with newly-rewritten version
714 shift @parents;
715 unshift @parents, $rewritten_parent;
718 foreach my $parent (@parents) {
719 my ($branchurl, $svnrev, $paruuid) =
720 cmt_metadata($parent);
722 unless (defined($svnrev)) {
723 # Should have been caught be preflight check
724 fatal "merge commit $d has ancestor $parent, but that change "
725 ."does not have git-svn metadata!";
727 unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
728 fatal "commit $parent git-svn metadata changed mid-run!";
730 my $branchpath = $1;
732 my $ra = Git::SVN::Ra->new($branchurl);
733 my (undef, undef, $props) =
734 $ra->get_dir(canonicalize_path("."), $svnrev);
735 my $par_mergeinfo = $props->{'svn:mergeinfo'};
736 unless (defined $par_mergeinfo) {
737 $par_mergeinfo = '';
739 # Merge previous mergeinfo values
740 $aggregate_mergeinfo =
741 merge_merge_info($aggregate_mergeinfo,
742 $par_mergeinfo,
743 $target_branch);
745 next if $parent eq $parents[0]; # Skip first parent
746 # Add new changes being placed in tree by merge
747 my @cmd = (qw/rev-list --reverse/,
748 $parent, qw/--not/);
749 foreach my $par (@parents) {
750 unless ($par eq $parent) {
751 push @cmd, $par;
754 my @revsin = ();
755 my ($revlist, $ctx) = command_output_pipe(@cmd);
756 while (<$revlist>) {
757 my $irev = $_;
758 chomp $irev;
759 my (undef, $csvnrev, undef) =
760 cmt_metadata($irev);
761 unless (defined $csvnrev) {
762 # A child is missing SVN annotations...
763 # this might be OK, or might not be.
764 warn "W:child $irev is merged into revision "
765 ."$d but does not have git-svn metadata. "
766 ."This means git-svn cannot determine the "
767 ."svn revision numbers to place into the "
768 ."svn:mergeinfo property. You must ensure "
769 ."a branch is entirely committed to "
770 ."SVN before merging it in order for "
771 ."svn:mergeinfo population to function "
772 ."properly";
774 push @revsin, $csvnrev;
776 command_close_pipe($revlist, $ctx);
778 last unless $all_parents_ok;
780 # We now have a list of all SVN revnos which are
781 # merged by this particular parent. Integrate them.
782 next if $#revsin == -1;
783 my $newmergeinfo = "$branchpath:" . join(',', @revsin);
784 $aggregate_mergeinfo =
785 merge_merge_info($aggregate_mergeinfo,
786 $newmergeinfo,
787 $target_branch);
789 if ($all_parents_ok and $aggregate_mergeinfo) {
790 return $aggregate_mergeinfo;
794 return undef;
797 sub dcommit_rebase {
798 my ($is_last, $current, $fetched_ref, $svn_error) = @_;
799 my @diff;
801 if ($svn_error) {
802 print STDERR "\nERROR from SVN:\n",
803 $svn_error->expanded_message, "\n";
805 unless ($_no_rebase) {
806 # we always want to rebase against the current HEAD,
807 # not any head that was passed to us
808 @diff = command('diff-tree', $current,
809 $fetched_ref, '--');
810 my @finish;
811 if (@diff) {
812 @finish = rebase_cmd();
813 print STDERR "W: $current and ", $fetched_ref,
814 " differ, using @finish:\n",
815 join("\n", @diff), "\n";
816 } elsif ($is_last) {
817 print "No changes between ", $current, " and ",
818 $fetched_ref,
819 "\nResetting to the latest ",
820 $fetched_ref, "\n";
821 @finish = qw/reset --mixed/;
823 command_noisy(@finish, $fetched_ref) if @finish;
825 if ($svn_error) {
826 die "ERROR: Not all changes have been committed into SVN"
827 .($_no_rebase ? ".\n" : ", however the committed\n"
828 ."ones (if any) seem to be successfully integrated "
829 ."into the working tree.\n")
830 ."Please see the above messages for details.\n";
832 return @diff;
835 sub cmd_dcommit {
836 my $head = shift;
837 command_noisy(qw/update-index --refresh/);
838 git_cmd_try { command_oneline(qw/diff-index --quiet HEAD --/) }
839 'Cannot dcommit with a dirty index. Commit your changes first, '
840 . "or stash them with `git stash'.\n";
841 $head ||= 'HEAD';
843 my $old_head;
844 if ($head ne 'HEAD') {
845 $old_head = eval {
846 command_oneline([qw/symbolic-ref -q HEAD/])
848 if ($old_head) {
849 $old_head =~ s{^refs/heads/}{};
850 } else {
851 $old_head = eval { command_oneline(qw/rev-parse HEAD/) };
853 command(['checkout', $head], STDERR => 0);
856 my @refs;
857 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
858 unless ($gs) {
859 die "Unable to determine upstream SVN information from ",
860 "$head history.\nPerhaps the repository is empty.";
863 if (defined $_commit_url) {
864 $url = $_commit_url;
865 } else {
866 $url = eval { command_oneline('config', '--get',
867 "svn-remote.$gs->{repo_id}.commiturl") };
868 if (!$url) {
869 $url = $gs->full_pushurl
873 my $last_rev = $_revision if defined $_revision;
874 if ($url) {
875 print "Committing to $url ...\n";
877 my ($linear_refs, $parents) = linearize_history($gs, \@refs);
878 if ($_no_rebase && scalar(@$linear_refs) > 1) {
879 warn "Attempting to commit more than one change while ",
880 "--no-rebase is enabled.\n",
881 "If these changes depend on each other, re-running ",
882 "without --no-rebase may be required."
885 if (defined $_interactive){
886 my $ask_default = "y";
887 foreach my $d (@$linear_refs){
888 my ($fh, $ctx) = command_output_pipe(qw(show --summary), "$d");
889 while (<$fh>){
890 print $_;
892 command_close_pipe($fh, $ctx);
893 $_ = ask("Commit this patch to SVN? ([y]es (default)|[n]o|[q]uit|[a]ll): ",
894 valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
895 default => $ask_default);
896 die "Commit this patch reply required" unless defined $_;
897 if (/^[nq]/i) {
898 exit(0);
899 } elsif (/^a/i) {
900 last;
905 my $expect_url = $url;
907 my $push_merge_info = eval {
908 command_oneline(qw/config --get svn.pushmergeinfo/)
910 if (not defined($push_merge_info)
911 or $push_merge_info eq "false"
912 or $push_merge_info eq "no"
913 or $push_merge_info eq "never") {
914 $push_merge_info = 0;
917 unless (defined($_merge_info) || ! $push_merge_info) {
918 # Preflight check of changes to ensure no issues with mergeinfo
919 # This includes check for uncommitted-to-SVN parents
920 # (other than the first parent, which we will handle),
921 # information from different SVN repos, and paths
922 # which are not underneath this repository root.
923 my $rooturl = $gs->repos_root;
924 foreach my $d (@$linear_refs) {
925 my %parentshash;
926 read_commit_parents(\%parentshash, $d);
927 my @realparents = @{$parentshash{$d}};
928 if ($#realparents > 0) {
929 # Merge commit
930 shift @realparents; # Remove/ignore first parent
931 foreach my $parent (@realparents) {
932 my ($branchurl, $svnrev, $paruuid) = cmt_metadata($parent);
933 unless (defined $paruuid) {
934 # A parent is missing SVN annotations...
935 # abort the whole operation.
936 fatal "$parent is merged into revision $d, "
937 ."but does not have git-svn metadata. "
938 ."Either dcommit the branch or use a "
939 ."local cherry-pick, FF merge, or rebase "
940 ."instead of an explicit merge commit.";
943 unless ($paruuid eq $uuid) {
944 # Parent has SVN metadata from different repository
945 fatal "merge parent $parent for change $d has "
946 ."git-svn uuid $paruuid, while current change "
947 ."has uuid $uuid!";
950 unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
951 # This branch is very strange indeed.
952 fatal "merge parent $parent for $d is on branch "
953 ."$branchurl, which is not under the "
954 ."git-svn root $rooturl!";
961 my $rewritten_parent;
962 my $current_head = command_oneline(qw/rev-parse HEAD/);
963 Git::SVN::remove_username($expect_url);
964 if (defined($_merge_info)) {
965 $_merge_info =~ tr{ }{\n};
967 while (1) {
968 my $d = shift @$linear_refs or last;
969 unless (defined $last_rev) {
970 (undef, $last_rev, undef) = cmt_metadata("$d~1");
971 unless (defined $last_rev) {
972 fatal "Unable to extract revision information ",
973 "from commit $d~1";
976 if ($_dry_run) {
977 print "diff-tree $d~1 $d\n";
978 } else {
979 my $cmt_rev;
981 unless (defined($_merge_info) || ! $push_merge_info) {
982 $_merge_info = populate_merge_info($d, $gs,
983 $uuid,
984 $linear_refs,
985 $rewritten_parent);
988 my %ed_opts = ( r => $last_rev,
989 log => get_commit_entry($d)->{log},
990 ra => Git::SVN::Ra->new($url),
991 config => SVN::Core::config_get_config(
992 $Git::SVN::Ra::config_dir
994 tree_a => "$d~1",
995 tree_b => $d,
996 editor_cb => sub {
997 print "Committed r$_[0]\n";
998 $cmt_rev = $_[0];
1000 mergeinfo => $_merge_info,
1001 svn_path => '');
1003 my $err_handler = $SVN::Error::handler;
1004 $SVN::Error::handler = sub {
1005 my $err = shift;
1006 dcommit_rebase(1, $current_head, $gs->refname,
1007 $err);
1010 if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
1011 print "No changes\n$d~1 == $d\n";
1012 } elsif ($parents->{$d} && @{$parents->{$d}}) {
1013 $gs->{inject_parents_dcommit}->{$cmt_rev} =
1014 $parents->{$d};
1016 $_fetch_all ? $gs->fetch_all : $gs->fetch;
1017 $SVN::Error::handler = $err_handler;
1018 $last_rev = $cmt_rev;
1019 next if $_no_rebase;
1021 my @diff = dcommit_rebase(@$linear_refs == 0, $d,
1022 $gs->refname, undef);
1024 $rewritten_parent = command_oneline(qw/rev-parse/,
1025 $gs->refname);
1027 if (@diff) {
1028 $current_head = command_oneline(qw/rev-parse
1029 HEAD/);
1030 @refs = ();
1031 my ($url_, $rev_, $uuid_, $gs_) =
1032 working_head_info('HEAD', \@refs);
1033 my ($linear_refs_, $parents_) =
1034 linearize_history($gs_, \@refs);
1035 if (scalar(@$linear_refs) !=
1036 scalar(@$linear_refs_)) {
1037 fatal "# of revisions changed ",
1038 "\nbefore:\n",
1039 join("\n", @$linear_refs),
1040 "\n\nafter:\n",
1041 join("\n", @$linear_refs_), "\n",
1042 'If you are attempting to commit ',
1043 "merges, try running:\n\t",
1044 'git rebase --interactive',
1045 '--preserve-merges ',
1046 $gs->refname,
1047 "\nBefore dcommitting";
1049 if ($url_ ne $expect_url) {
1050 if ($url_ eq $gs->metadata_url) {
1051 print
1052 "Accepting rewritten URL:",
1053 " $url_\n";
1054 } else {
1055 fatal
1056 "URL mismatch after rebase:",
1057 " $url_ != $expect_url";
1060 if ($uuid_ ne $uuid) {
1061 fatal "uuid mismatch after rebase: ",
1062 "$uuid_ != $uuid";
1064 # remap parents
1065 my (%p, @l, $i);
1066 for ($i = 0; $i < scalar @$linear_refs; $i++) {
1067 my $new = $linear_refs_->[$i] or next;
1068 $p{$new} =
1069 $parents->{$linear_refs->[$i]};
1070 push @l, $new;
1072 $parents = \%p;
1073 $linear_refs = \@l;
1074 undef $last_rev;
1079 if ($old_head) {
1080 my $new_head = command_oneline(qw/rev-parse HEAD/);
1081 my $new_is_symbolic = eval {
1082 command_oneline(qw/symbolic-ref -q HEAD/);
1084 if ($new_is_symbolic) {
1085 print "dcommitted the branch ", $head, "\n";
1086 } else {
1087 print "dcommitted on a detached HEAD because you gave ",
1088 "a revision argument.\n",
1089 "The rewritten commit is: ", $new_head, "\n";
1091 command(['checkout', $old_head], STDERR => 0);
1094 unlink $gs->{index};
1097 sub cmd_branch {
1098 my ($branch_name, $head) = @_;
1100 unless (defined $branch_name && length $branch_name) {
1101 die(($_tag ? "tag" : "branch") . " name required\n");
1103 $head ||= 'HEAD';
1105 my (undef, $rev, undef, $gs) = working_head_info($head);
1106 my $src = $gs->full_pushurl;
1108 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
1109 my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
1110 my $glob;
1111 if ($#{$allglobs} == 0) {
1112 $glob = $allglobs->[0];
1113 } else {
1114 unless(defined $_branch_dest) {
1115 die "Multiple ",
1116 $_tag ? "tag" : "branch",
1117 " paths defined for Subversion repository.\n",
1118 "You must specify where you want to create the ",
1119 $_tag ? "tag" : "branch",
1120 " with the --destination argument.\n";
1122 foreach my $g (@{$allglobs}) {
1123 my $re = Git::SVN::Editor::glob2pat($g->{path}->{left});
1124 if ($_branch_dest =~ /$re/) {
1125 $glob = $g;
1126 last;
1129 unless (defined $glob) {
1130 my $dest_re = qr/\b\Q$_branch_dest\E\b/;
1131 foreach my $g (@{$allglobs}) {
1132 $g->{path}->{left} =~ /$dest_re/ or next;
1133 if (defined $glob) {
1134 die "Ambiguous destination: ",
1135 $_branch_dest, "\nmatches both '",
1136 $glob->{path}->{left}, "' and '",
1137 $g->{path}->{left}, "'\n";
1139 $glob = $g;
1141 unless (defined $glob) {
1142 die "Unknown ",
1143 $_tag ? "tag" : "branch",
1144 " destination $_branch_dest\n";
1148 my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
1149 my $url;
1150 if (defined $_commit_url) {
1151 $url = $_commit_url;
1152 } else {
1153 $url = eval { command_oneline('config', '--get',
1154 "svn-remote.$gs->{repo_id}.commiturl") };
1155 if (!$url) {
1156 $url = $remote->{pushurl} || $remote->{url};
1159 my $dst = join '/', $url, $lft, $branch_name, ($rgt || ());
1161 if ($dst =~ /^https:/ && $src =~ /^http:/) {
1162 $src=~s/^http:/https:/;
1165 ::_req_svn();
1167 my $ctx = SVN::Client->new(
1168 config => SVN::Core::config_get_config(
1169 $Git::SVN::Ra::config_dir
1171 log_msg => sub {
1172 ${ $_[0] } = defined $_message
1173 ? $_message
1174 : 'Create ' . ($_tag ? 'tag ' : 'branch ' )
1175 . $branch_name;
1179 eval {
1180 $ctx->ls($dst, 'HEAD', 0);
1181 } and die "branch ${branch_name} already exists\n";
1183 if ($_parents) {
1184 mk_parent_dirs($ctx, $dst);
1187 print "Copying ${src} at r${rev} to ${dst}...\n";
1188 $ctx->copy($src, $rev, $dst)
1189 unless $_dry_run;
1191 $gs->fetch_all;
1194 sub mk_parent_dirs {
1195 my ($ctx, $parent) = @_;
1196 $parent =~ s{/[^/]*$}{};
1198 if (!eval{$ctx->ls($parent, 'HEAD', 0)}) {
1199 mk_parent_dirs($ctx, $parent);
1200 print "Creating parent folder ${parent} ...\n";
1201 $ctx->mkdir($parent) unless $_dry_run;
1205 sub cmd_find_rev {
1206 my $revision_or_hash = shift or die "SVN or git revision required ",
1207 "as a command-line argument\n";
1208 my $result;
1209 if ($revision_or_hash =~ /^r\d+$/) {
1210 my $head = shift;
1211 $head ||= 'HEAD';
1212 my @refs;
1213 my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
1214 unless ($gs) {
1215 die "Unable to determine upstream SVN information from ",
1216 "$head history\n";
1218 my $desired_revision = substr($revision_or_hash, 1);
1219 if ($_before) {
1220 $result = $gs->find_rev_before($desired_revision, 1);
1221 } elsif ($_after) {
1222 $result = $gs->find_rev_after($desired_revision, 1);
1223 } else {
1224 $result = $gs->rev_map_get($desired_revision, $uuid);
1226 } else {
1227 my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
1228 $result = $rev;
1230 print "$result\n" if $result;
1233 sub auto_create_empty_directories {
1234 my ($gs) = @_;
1235 my $var = eval { command_oneline('config', '--get', '--bool',
1236 "svn-remote.$gs->{repo_id}.automkdirs") };
1237 # By default, create empty directories by consulting the unhandled log,
1238 # but allow setting it to 'false' to skip it.
1239 return !($var && $var eq 'false');
1242 sub cmd_rebase {
1243 command_noisy(qw/update-index --refresh/);
1244 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1245 unless ($gs) {
1246 die "Unable to determine upstream SVN information from ",
1247 "working tree history\n";
1249 if ($_dry_run) {
1250 print "Remote Branch: " . $gs->refname . "\n";
1251 print "SVN URL: " . $url . "\n";
1252 return;
1254 if (command(qw/diff-index HEAD --/)) {
1255 print STDERR "Cannot rebase with uncommitted changes:\n";
1256 command_noisy('status');
1257 exit 1;
1259 unless ($_local) {
1260 # rebase will checkout for us, so no need to do it explicitly
1261 $_no_checkout = 'true';
1262 $_fetch_all ? $gs->fetch_all : $gs->fetch;
1264 command_noisy(rebase_cmd(), $gs->refname);
1265 if (auto_create_empty_directories($gs)) {
1266 $gs->mkemptydirs;
1270 sub cmd_show_ignore {
1271 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1272 $gs ||= Git::SVN->new;
1273 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1274 $gs->prop_walk($gs->path, $r, sub {
1275 my ($gs, $path, $props) = @_;
1276 print STDOUT "\n# $path\n";
1277 my $s = $props->{'svn:ignore'} or return;
1278 $s =~ s/[\r\n]+/\n/g;
1279 $s =~ s/^\n+//;
1280 chomp $s;
1281 $s =~ s#^#$path#gm;
1282 print STDOUT "$s\n";
1286 sub cmd_show_externals {
1287 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1288 $gs ||= Git::SVN->new;
1289 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1290 $gs->prop_walk($gs->path, $r, sub {
1291 my ($gs, $path, $props) = @_;
1292 print STDOUT "\n# $path\n";
1293 my $s = $props->{'svn:externals'} or return;
1294 $s =~ s/[\r\n]+/\n/g;
1295 chomp $s;
1296 $s =~ s#^#$path#gm;
1297 print STDOUT "$s\n";
1301 sub cmd_create_ignore {
1302 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1303 $gs ||= Git::SVN->new;
1304 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1305 $gs->prop_walk($gs->path, $r, sub {
1306 my ($gs, $path, $props) = @_;
1307 # $path is of the form /path/to/dir/
1308 $path = '.' . $path;
1309 # SVN can have attributes on empty directories,
1310 # which git won't track
1311 mkpath([$path]) unless -d $path;
1312 my $ignore = $path . '.gitignore';
1313 my $s = $props->{'svn:ignore'} or return;
1314 open(GITIGNORE, '>', $ignore)
1315 or fatal("Failed to open `$ignore' for writing: $!");
1316 $s =~ s/[\r\n]+/\n/g;
1317 $s =~ s/^\n+//;
1318 chomp $s;
1319 # Prefix all patterns so that the ignore doesn't apply
1320 # to sub-directories.
1321 $s =~ s#^#/#gm;
1322 print GITIGNORE "$s\n";
1323 close(GITIGNORE)
1324 or fatal("Failed to close `$ignore': $!");
1325 command_noisy('add', '-f', $ignore);
1329 sub cmd_mkdirs {
1330 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1331 $gs ||= Git::SVN->new;
1332 $gs->mkemptydirs($_revision);
1335 # get_svnprops(PATH)
1336 # ------------------
1337 # Helper for cmd_propget and cmd_proplist below.
1338 sub get_svnprops {
1339 my $path = shift;
1340 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1341 $gs ||= Git::SVN->new;
1343 # prefix THE PATH by the sub-directory from which the user
1344 # invoked us.
1345 $path = $cmd_dir_prefix . $path;
1346 fatal("No such file or directory: $path") unless -e $path;
1347 my $is_dir = -d $path ? 1 : 0;
1348 $path = join_paths($gs->path, $path);
1350 # canonicalize the path (otherwise libsvn will abort or fail to
1351 # find the file)
1352 $path = canonicalize_path($path);
1354 my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
1355 my $props;
1356 if ($is_dir) {
1357 (undef, undef, $props) = $gs->ra->get_dir($path, $r);
1359 else {
1360 (undef, $props) = $gs->ra->get_file($path, $r, undef);
1362 return $props;
1365 # cmd_propget (PROP, PATH)
1366 # ------------------------
1367 # Print the SVN property PROP for PATH.
1368 sub cmd_propget {
1369 my ($prop, $path) = @_;
1370 $path = '.' if not defined $path;
1371 usage(1) if not defined $prop;
1372 my $props = get_svnprops($path);
1373 if (not defined $props->{$prop}) {
1374 fatal("`$path' does not have a `$prop' SVN property.");
1376 print $props->{$prop} . "\n";
1379 # cmd_proplist (PATH)
1380 # -------------------
1381 # Print the list of SVN properties for PATH.
1382 sub cmd_proplist {
1383 my $path = shift;
1384 $path = '.' if not defined $path;
1385 my $props = get_svnprops($path);
1386 print "Properties on '$path':\n";
1387 foreach (sort keys %{$props}) {
1388 print " $_\n";
1392 sub cmd_multi_init {
1393 my $url = shift;
1394 unless (defined $_trunk || @_branches || @_tags) {
1395 usage(1);
1398 $_prefix = 'origin/' unless defined $_prefix;
1399 if (defined $url) {
1400 $url = canonicalize_url($url);
1401 init_subdir(@_);
1403 do_git_init_db();
1404 if (defined $_trunk) {
1405 $_trunk =~ s#^/+##;
1406 my $trunk_ref = 'refs/remotes/' . $_prefix . 'trunk';
1407 # try both old-style and new-style lookups:
1408 my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
1409 unless ($gs_trunk) {
1410 my ($trunk_url, $trunk_path) =
1411 complete_svn_url($url, $_trunk);
1412 $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
1413 undef, $trunk_ref);
1416 return unless @_branches || @_tags;
1417 my $ra = $url ? Git::SVN::Ra->new($url) : undef;
1418 foreach my $path (@_branches) {
1419 complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
1421 foreach my $path (@_tags) {
1422 complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
1426 sub cmd_multi_fetch {
1427 $Git::SVN::no_reuse_existing = undef;
1428 my $remotes = Git::SVN::read_all_remotes();
1429 foreach my $repo_id (sort keys %$remotes) {
1430 if ($remotes->{$repo_id}->{url}) {
1431 Git::SVN::fetch_all($repo_id, $remotes);
1436 # this command is special because it requires no metadata
1437 sub cmd_commit_diff {
1438 my ($ta, $tb, $url) = @_;
1439 my $usage = "usage: $0 commit-diff -r<revision> ".
1440 "<tree-ish> <tree-ish> [<URL>]";
1441 fatal($usage) if (!defined $ta || !defined $tb);
1442 my $svn_path = '';
1443 if (!defined $url) {
1444 my $gs = eval { Git::SVN->new };
1445 if (!$gs) {
1446 fatal("Needed URL or usable git-svn --id in ",
1447 "the command-line\n", $usage);
1449 $url = $gs->url;
1450 $svn_path = $gs->path;
1452 unless (defined $_revision) {
1453 fatal("-r|--revision is a required argument\n", $usage);
1455 if (defined $_message && defined $_file) {
1456 fatal("Both --message/-m and --file/-F specified ",
1457 "for the commit message.\n",
1458 "I have no idea what you mean");
1460 if (defined $_file) {
1461 $_message = file_to_s($_file);
1462 } else {
1463 $_message ||= get_commit_entry($tb)->{log};
1465 my $ra ||= Git::SVN::Ra->new($url);
1466 my $r = $_revision;
1467 if ($r eq 'HEAD') {
1468 $r = $ra->get_latest_revnum;
1469 } elsif ($r !~ /^\d+$/) {
1470 die "revision argument: $r not understood by git-svn\n";
1472 my %ed_opts = ( r => $r,
1473 log => $_message,
1474 ra => $ra,
1475 tree_a => $ta,
1476 tree_b => $tb,
1477 editor_cb => sub { print "Committed r$_[0]\n" },
1478 svn_path => $svn_path );
1479 if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
1480 print "No changes\n$ta == $tb\n";
1484 sub cmd_info {
1485 my $path_arg = defined($_[0]) ? $_[0] : '.';
1486 my $path = $path_arg;
1487 if (File::Spec->file_name_is_absolute($path)) {
1488 $path = canonicalize_path($path);
1490 my $toplevel = eval {
1491 my @cmd = qw/rev-parse --show-toplevel/;
1492 command_oneline(\@cmd, STDERR => 0);
1495 # remove $toplevel from the absolute path:
1496 my ($vol, $dirs, $file) = File::Spec->splitpath($path);
1497 my (undef, $tdirs, $tfile) = File::Spec->splitpath($toplevel);
1498 my @dirs = File::Spec->splitdir($dirs);
1499 my @tdirs = File::Spec->splitdir($tdirs);
1500 pop @dirs if $dirs[-1] eq '';
1501 pop @tdirs if $tdirs[-1] eq '';
1502 push @dirs, $file;
1503 push @tdirs, $tfile;
1504 while (@tdirs && @dirs && $tdirs[0] eq $dirs[0]) {
1505 shift @dirs;
1506 shift @tdirs;
1508 $dirs = File::Spec->catdir(@dirs);
1509 $path = File::Spec->catpath($vol, $dirs);
1511 $path = canonicalize_path($path);
1512 } else {
1513 $path = canonicalize_path($cmd_dir_prefix . $path);
1515 if (exists $_[1]) {
1516 die "Too many arguments specified\n";
1519 my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
1521 if (!$file_type && !$diff_status) {
1522 print STDERR "svn: '$path' is not under version control\n";
1523 exit 1;
1526 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1527 unless ($gs) {
1528 die "Unable to determine upstream SVN information from ",
1529 "working tree history\n";
1532 # canonicalize_path() will return "" to make libsvn 1.5.x happy,
1533 $path = "." if $path eq "";
1535 my $full_url = canonicalize_url( add_path_to_url( $url, $path ) );
1537 if ($_url) {
1538 print "$full_url\n";
1539 return;
1542 my $result = "Path: $path_arg\n";
1543 $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
1544 $result .= "URL: $full_url\n";
1546 eval {
1547 my $repos_root = $gs->repos_root;
1548 Git::SVN::remove_username($repos_root);
1549 $result .= "Repository Root: " . canonicalize_url($repos_root) . "\n";
1551 if ($@) {
1552 $result .= "Repository Root: (offline)\n";
1554 ::_req_svn();
1555 $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
1556 (::compare_svn_version('1.5.4') <= 0 || $file_type ne "dir");
1557 $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
1559 $result .= "Node Kind: " .
1560 ($file_type eq "dir" ? "directory" : "file") . "\n";
1562 my $schedule = $diff_status eq "A"
1563 ? "add"
1564 : ($diff_status eq "D" ? "delete" : "normal");
1565 $result .= "Schedule: $schedule\n";
1567 if ($diff_status eq "A") {
1568 print $result, "\n";
1569 return;
1572 my ($lc_author, $lc_rev, $lc_date_utc);
1573 my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $path);
1574 my $log = command_output_pipe(@args);
1575 my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
1576 while (<$log>) {
1577 if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
1578 $lc_author = $1;
1579 $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
1580 } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
1581 (undef, $lc_rev, undef) = ::extract_metadata($1);
1584 close $log;
1586 Git::SVN::Log::set_local_timezone();
1588 $result .= "Last Changed Author: $lc_author\n";
1589 $result .= "Last Changed Rev: $lc_rev\n";
1590 $result .= "Last Changed Date: " .
1591 Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
1593 if ($file_type ne "dir") {
1594 my $text_last_updated_date =
1595 ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
1596 $result .=
1597 "Text Last Updated: " .
1598 Git::SVN::Log::format_svn_date($text_last_updated_date) .
1599 "\n";
1600 my $checksum;
1601 if ($diff_status eq "D") {
1602 my ($fh, $ctx) =
1603 command_output_pipe(qw(cat-file blob), "HEAD:$path");
1604 if ($file_type eq "link") {
1605 my $file_name = <$fh>;
1606 $checksum = md5sum("link $file_name");
1607 } else {
1608 $checksum = md5sum($fh);
1610 command_close_pipe($fh, $ctx);
1611 } elsif ($file_type eq "link") {
1612 my $file_name =
1613 command(qw(cat-file blob), "HEAD:$path");
1614 $checksum =
1615 md5sum("link " . $file_name);
1616 } else {
1617 open FILE, "<", $path or die $!;
1618 $checksum = md5sum(\*FILE);
1619 close FILE or die $!;
1621 $result .= "Checksum: " . $checksum . "\n";
1624 print $result, "\n";
1627 sub cmd_reset {
1628 my $target = shift || $_revision or die "SVN revision required\n";
1629 $target = $1 if $target =~ /^r(\d+)$/;
1630 $target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
1631 my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
1632 unless ($gs) {
1633 die "Unable to determine upstream SVN information from ".
1634 "history\n";
1636 my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
1637 die "Cannot find SVN revision $target\n" unless defined($c);
1638 $gs->rev_map_set($r, $c, 'reset', $uuid);
1639 print "r$r = $c ($gs->{ref_id})\n";
1642 sub cmd_gc {
1643 if (!can_compress()) {
1644 warn "Compress::Zlib could not be found; unhandled.log " .
1645 "files will not be compressed.\n";
1647 find({ wanted => \&gc_directory, no_chdir => 1}, "$ENV{GIT_DIR}/svn");
1650 ########################### utility functions #########################
1652 sub rebase_cmd {
1653 my @cmd = qw/rebase/;
1654 push @cmd, '-v' if $_verbose;
1655 push @cmd, qw/--merge/ if $_merge;
1656 push @cmd, "--strategy=$_strategy" if $_strategy;
1657 push @cmd, "--preserve-merges" if $_preserve_merges;
1658 @cmd;
1661 sub post_fetch_checkout {
1662 return if $_no_checkout;
1663 return if verify_ref('HEAD^0');
1664 my $gs = $Git::SVN::_head or return;
1666 # look for "trunk" ref if it exists
1667 my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
1668 my $fetch = $remote->{fetch};
1669 if ($fetch) {
1670 foreach my $p (keys %$fetch) {
1671 basename($fetch->{$p}) eq 'trunk' or next;
1672 $gs = Git::SVN->new($fetch->{$p}, $gs->{repo_id}, $p);
1673 last;
1677 command_noisy(qw(update-ref HEAD), $gs->refname);
1678 return unless verify_ref('HEAD^0');
1680 return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
1681 my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
1682 return if -f $index;
1684 return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
1685 return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
1686 command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
1687 print STDERR "Checked out HEAD:\n ",
1688 $gs->full_url, " r", $gs->last_rev, "\n";
1689 if (auto_create_empty_directories($gs)) {
1690 $gs->mkemptydirs($gs->last_rev);
1694 sub complete_svn_url {
1695 my ($url, $path) = @_;
1696 $path = canonicalize_path($path);
1698 # If the path is not a URL...
1699 if ($path !~ m#^[a-z\+]+://#) {
1700 if (!defined $url || $url !~ m#^[a-z\+]+://#) {
1701 fatal("E: '$path' is not a complete URL ",
1702 "and a separate URL is not specified");
1704 return ($url, $path);
1706 return ($path, '');
1709 sub complete_url_ls_init {
1710 my ($ra, $repo_path, $switch, $pfx) = @_;
1711 unless ($repo_path) {
1712 print STDERR "W: $switch not specified\n";
1713 return;
1715 $repo_path = canonicalize_path($repo_path);
1716 if ($repo_path =~ m#^[a-z\+]+://#) {
1717 $ra = Git::SVN::Ra->new($repo_path);
1718 $repo_path = '';
1719 } else {
1720 $repo_path =~ s#^/+##;
1721 unless ($ra) {
1722 fatal("E: '$repo_path' is not a complete URL ",
1723 "and a separate URL is not specified");
1726 my $url = $ra->url;
1727 my $gs = Git::SVN->init($url, undef, undef, undef, 1);
1728 my $k = "svn-remote.$gs->{repo_id}.url";
1729 my $orig_url = eval { command_oneline(qw/config --get/, $k) };
1730 if ($orig_url && ($orig_url ne $gs->url)) {
1731 die "$k already set: $orig_url\n",
1732 "wanted to set to: $gs->url\n";
1734 command_oneline('config', $k, $gs->url) unless $orig_url;
1736 my $remote_path = join_paths( $gs->path, $repo_path );
1737 $remote_path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
1738 $remote_path =~ s#^/##g;
1739 $remote_path .= "/*" if $remote_path !~ /\*/;
1740 my ($n) = ($switch =~ /^--(\w+)/);
1741 if (length $pfx && $pfx !~ m#/$#) {
1742 die "--prefix='$pfx' must have a trailing slash '/'\n";
1744 command_noisy('config',
1745 '--add',
1746 "svn-remote.$gs->{repo_id}.$n",
1747 "$remote_path:refs/remotes/$pfx*" .
1748 ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
1751 sub verify_ref {
1752 my ($ref) = @_;
1753 eval { command_oneline([ 'rev-parse', '--verify', $ref ],
1754 { STDERR => 0 }); };
1757 sub get_tree_from_treeish {
1758 my ($treeish) = @_;
1759 # $treeish can be a symbolic ref, too:
1760 my $type = command_oneline(qw/cat-file -t/, $treeish);
1761 my $expected;
1762 while ($type eq 'tag') {
1763 ($treeish, $type) = command(qw/cat-file tag/, $treeish);
1765 if ($type eq 'commit') {
1766 $expected = (grep /^tree /, command(qw/cat-file commit/,
1767 $treeish))[0];
1768 ($expected) = ($expected =~ /^tree ($sha1)$/o);
1769 die "Unable to get tree from $treeish\n" unless $expected;
1770 } elsif ($type eq 'tree') {
1771 $expected = $treeish;
1772 } else {
1773 die "$treeish is a $type, expected tree, tag or commit\n";
1775 return $expected;
1778 sub get_commit_entry {
1779 my ($treeish) = shift;
1780 my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
1781 my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
1782 my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
1783 open my $log_fh, '>', $commit_editmsg or croak $!;
1785 my $type = command_oneline(qw/cat-file -t/, $treeish);
1786 if ($type eq 'commit' || $type eq 'tag') {
1787 my ($msg_fh, $ctx) = command_output_pipe('cat-file',
1788 $type, $treeish);
1789 my $in_msg = 0;
1790 my $author;
1791 my $saw_from = 0;
1792 my $msgbuf = "";
1793 while (<$msg_fh>) {
1794 if (!$in_msg) {
1795 $in_msg = 1 if (/^$/);
1796 $author = $1 if (/^author (.*>)/);
1797 } elsif (/^git-svn-id: /) {
1798 # skip this for now, we regenerate the
1799 # correct one on re-fetch anyways
1800 # TODO: set *:merge properties or like...
1801 } else {
1802 if (/^From:/ || /^Signed-off-by:/) {
1803 $saw_from = 1;
1805 $msgbuf .= $_;
1808 $msgbuf =~ s/\s+$//s;
1809 if ($Git::SVN::_add_author_from && defined($author)
1810 && !$saw_from) {
1811 $msgbuf .= "\n\nFrom: $author";
1813 print $log_fh $msgbuf or croak $!;
1814 command_close_pipe($msg_fh, $ctx);
1816 close $log_fh or croak $!;
1818 if ($_edit || ($type eq 'tree')) {
1819 chomp(my $editor = command_oneline(qw(var GIT_EDITOR)));
1820 system('sh', '-c', $editor.' "$@"', $editor, $commit_editmsg);
1822 rename $commit_editmsg, $commit_msg or croak $!;
1824 require Encode;
1825 # SVN requires messages to be UTF-8 when entering the repo
1826 local $/;
1827 open $log_fh, '<', $commit_msg or croak $!;
1828 binmode $log_fh;
1829 chomp($log_entry{log} = <$log_fh>);
1831 my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
1832 my $msg = $log_entry{log};
1834 eval { $msg = Encode::decode($enc, $msg, 1) };
1835 if ($@) {
1836 die "Could not decode as $enc:\n", $msg,
1837 "\nPerhaps you need to set i18n.commitencoding\n";
1840 eval { $msg = Encode::encode('UTF-8', $msg, 1) };
1841 die "Could not encode as UTF-8:\n$msg\n" if $@;
1843 $log_entry{log} = $msg;
1845 close $log_fh or croak $!;
1847 unlink $commit_msg;
1848 \%log_entry;
1851 sub s_to_file {
1852 my ($str, $file, $mode) = @_;
1853 open my $fd,'>',$file or croak $!;
1854 print $fd $str,"\n" or croak $!;
1855 close $fd or croak $!;
1856 chmod ($mode &~ umask, $file) if (defined $mode);
1859 sub file_to_s {
1860 my $file = shift;
1861 open my $fd,'<',$file or croak "$!: file: $file\n";
1862 local $/;
1863 my $ret = <$fd>;
1864 close $fd or croak $!;
1865 $ret =~ s/\s*$//s;
1866 return $ret;
1869 # '<svn username> = real-name <email address>' mapping based on git-svnimport:
1870 sub load_authors {
1871 open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
1872 my $log = $cmd eq 'log';
1873 while (<$authors>) {
1874 chomp;
1875 next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
1876 my ($user, $name, $email) = ($1, $2, $3);
1877 if ($log) {
1878 $Git::SVN::Log::rusers{"$name <$email>"} = $user;
1879 } else {
1880 $users{$user} = [$name, $email];
1883 close $authors or croak $!;
1886 # convert GetOpt::Long specs for use by git-config
1887 sub read_git_config {
1888 my $opts = shift;
1889 my @config_only;
1890 foreach my $o (keys %$opts) {
1891 # if we have mixedCase and a long option-only, then
1892 # it's a config-only variable that we don't need for
1893 # the command-line.
1894 push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
1895 my $v = $opts->{$o};
1896 my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
1897 $key =~ s/-//g;
1898 my $arg = 'git config';
1899 $arg .= ' --int' if ($o =~ /[:=]i$/);
1900 $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
1901 if (ref $v eq 'ARRAY') {
1902 chomp(my @tmp = `$arg --get-all svn.$key`);
1903 @$v = @tmp if @tmp;
1904 } else {
1905 chomp(my $tmp = `$arg --get svn.$key`);
1906 if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
1907 $$v = $tmp;
1911 delete @$opts{@config_only} if @config_only;
1914 sub extract_metadata {
1915 my $id = shift or return (undef, undef, undef);
1916 my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
1917 \s([a-f\d\-]+)$/ix);
1918 if (!defined $rev || !$uuid || !$url) {
1919 # some of the original repositories I made had
1920 # identifiers like this:
1921 ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
1923 return ($url, $rev, $uuid);
1926 sub cmt_metadata {
1927 return extract_metadata((grep(/^git-svn-id: /,
1928 command(qw/cat-file commit/, shift)))[-1]);
1931 sub cmt_sha2rev_batch {
1932 my %s2r;
1933 my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
1934 my $list = shift;
1936 foreach my $sha (@{$list}) {
1937 my $first = 1;
1938 my $size = 0;
1939 print $out $sha, "\n";
1941 while (my $line = <$in>) {
1942 if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) {
1943 last;
1944 } elsif ($first &&
1945 $line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) {
1946 $first = 0;
1947 $size = $1;
1948 next;
1949 } elsif ($line =~ /^(git-svn-id: )/) {
1950 my (undef, $rev, undef) =
1951 extract_metadata($line);
1952 $s2r{$sha} = $rev;
1955 $size -= length($line);
1956 last if ($size == 0);
1960 command_close_bidi_pipe($pid, $in, $out, $ctx);
1962 return \%s2r;
1965 sub working_head_info {
1966 my ($head, $refs) = @_;
1967 my @args = qw/rev-list --first-parent --pretty=medium/;
1968 my ($fh, $ctx) = command_output_pipe(@args, $head, "--");
1969 my $hash;
1970 my %max;
1971 while (<$fh>) {
1972 if ( m{^commit ($::sha1)$} ) {
1973 unshift @$refs, $hash if $hash and $refs;
1974 $hash = $1;
1975 next;
1977 next unless s{^\s*(git-svn-id:)}{$1};
1978 my ($url, $rev, $uuid) = extract_metadata($_);
1979 if (defined $url && defined $rev) {
1980 next if $max{$url} and $max{$url} < $rev;
1981 if (my $gs = Git::SVN->find_by_url($url)) {
1982 my $c = $gs->rev_map_get($rev, $uuid);
1983 if ($c && $c eq $hash) {
1984 close $fh; # break the pipe
1985 return ($url, $rev, $uuid, $gs);
1986 } else {
1987 $max{$url} ||= $gs->rev_map_max;
1992 command_close_pipe($fh, $ctx);
1993 (undef, undef, undef, undef);
1996 sub read_commit_parents {
1997 my ($parents, $c) = @_;
1998 chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
1999 $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
2000 @{$parents->{$c}} = split(/ /, $p);
2003 sub linearize_history {
2004 my ($gs, $refs) = @_;
2005 my %parents;
2006 foreach my $c (@$refs) {
2007 read_commit_parents(\%parents, $c);
2010 my @linear_refs;
2011 my %skip = ();
2012 my $last_svn_commit = $gs->last_commit;
2013 foreach my $c (reverse @$refs) {
2014 next if $c eq $last_svn_commit;
2015 last if $skip{$c};
2017 unshift @linear_refs, $c;
2018 $skip{$c} = 1;
2020 # we only want the first parent to diff against for linear
2021 # history, we save the rest to inject when we finalize the
2022 # svn commit
2023 my $fp_a = verify_ref("$c~1");
2024 my $fp_b = shift @{$parents{$c}} if $parents{$c};
2025 if (!$fp_a || !$fp_b) {
2026 die "Commit $c\n",
2027 "has no parent commit, and therefore ",
2028 "nothing to diff against.\n",
2029 "You should be working from a repository ",
2030 "originally created by git-svn\n";
2032 if ($fp_a ne $fp_b) {
2033 die "$c~1 = $fp_a, however parsing commit $c ",
2034 "revealed that:\n$c~1 = $fp_b\nBUG!\n";
2037 foreach my $p (@{$parents{$c}}) {
2038 $skip{$p} = 1;
2041 (\@linear_refs, \%parents);
2044 sub find_file_type_and_diff_status {
2045 my ($path) = @_;
2046 return ('dir', '') if $path eq '';
2048 my $diff_output =
2049 command_oneline(qw(diff --cached --name-status --), $path) || "";
2050 my $diff_status = (split(' ', $diff_output))[0] || "";
2052 my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
2054 return (undef, undef) if !$diff_status && !$ls_tree;
2056 if ($diff_status eq "A") {
2057 return ("link", $diff_status) if -l $path;
2058 return ("dir", $diff_status) if -d $path;
2059 return ("file", $diff_status);
2062 my $mode = (split(' ', $ls_tree))[0] || "";
2064 return ("link", $diff_status) if $mode eq "120000";
2065 return ("dir", $diff_status) if $mode eq "040000";
2066 return ("file", $diff_status);
2069 sub md5sum {
2070 my $arg = shift;
2071 my $ref = ref $arg;
2072 my $md5 = Digest::MD5->new();
2073 if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
2074 $md5->addfile($arg) or croak $!;
2075 } elsif ($ref eq 'SCALAR') {
2076 $md5->add($$arg) or croak $!;
2077 } elsif (!$ref) {
2078 $md5->add($arg) or croak $!;
2079 } else {
2080 fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
2082 return $md5->hexdigest();
2085 sub gc_directory {
2086 if (can_compress() && -f $_ && basename($_) eq "unhandled.log") {
2087 my $out_filename = $_ . ".gz";
2088 open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
2089 binmode $in_fh;
2090 my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
2091 die "Unable to open $out_filename: $!\n";
2093 my $res;
2094 while ($res = sysread($in_fh, my $str, 1024)) {
2095 $gz->gzwrite($str) or
2096 die "Unable to write: ".$gz->gzerror()."!\n";
2098 unlink $_ or die "unlink $File::Find::name: $!\n";
2099 } elsif (-f $_ && basename($_) eq "index") {
2100 unlink $_ or die "unlink $_: $!\n";
2104 __END__
2106 Data structures:
2109 $remotes = { # returned by read_all_remotes()
2110 'svn' => {
2111 # svn-remote.svn.url=https://svn.musicpd.org
2112 url => 'https://svn.musicpd.org',
2113 # svn-remote.svn.fetch=mpd/trunk:trunk
2114 fetch => {
2115 'mpd/trunk' => 'trunk',
2117 # svn-remote.svn.tags=mpd/tags/*:tags/*
2118 tags => {
2119 path => {
2120 left => 'mpd/tags',
2121 right => '',
2122 regex => qr!mpd/tags/([^/]+)$!,
2123 glob => 'tags/*',
2125 ref => {
2126 left => 'tags',
2127 right => '',
2128 regex => qr!tags/([^/]+)$!,
2129 glob => 'tags/*',
2135 $log_entry hashref as returned by libsvn_log_entry()
2137 log => 'whitespace-formatted log entry
2138 ', # trailing newline is preserved
2139 revision => '8', # integer
2140 date => '2004-02-24T17:01:44.108345Z', # commit date
2141 author => 'committer name'
2145 # this is generated by generate_diff();
2146 @mods = array of diff-index line hashes, each element represents one line
2147 of diff-index output
2149 diff-index line ($m hash)
2151 mode_a => first column of diff-index output, no leading ':',
2152 mode_b => second column of diff-index output,
2153 sha1_b => sha1sum of the final blob,
2154 chg => change type [MCRADT],
2155 file_a => original file name of a file (iff chg is 'C' or 'R')
2156 file_b => new/current file name of a file (any chg)
2160 # retval of read_url_paths{,_all}();
2161 $l_map = {
2162 # repository root url
2163 'https://svn.musicpd.org' => {
2164 # repository path # GIT_SVN_ID
2165 'mpd/trunk' => 'trunk',
2166 'mpd/tags/0.11.5' => 'tags/0.11.5',
2170 Notes:
2171 I don't trust the each() function on unless I created %hash myself
2172 because the internal iterator may not have started at base.