1 package Git::SVN::Editor;
2 use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
9 use Git qw/command command_oneline command_noisy command_output_pipe
10 command_input_pipe command_close_pipe
11 command_bidi_pipe command_close_bidi_pipe/;
13 @ISA = qw(SVN::Delta::Editor);
17 my ($class, $opts) = @_;
18 foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
19 die "$_ required!\n" unless (defined $opts->{$_});
22 my $pool = SVN::Pool->new;
23 my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
24 my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
27 # $opts->{ra} functions should not be used after this:
28 my @ce = $opts->{ra}->get_commit_editor($opts->{log},
29 $opts->{editor_cb}, $pool);
30 my $self = SVN::Delta::Editor->new(@ce, $pool);
32 foreach (qw/svn_path r tree_a tree_b/) {
33 $self->{$_} = $opts->{$_};
35 $self->{url} = $opts->{ra}->{url};
36 $self->{mods} = $mods;
37 $self->{types} = $types;
38 $self->{pool} = $pool;
39 $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
41 $self->{path_prefix} = length $self->{svn_path} ?
42 "$self->{svn_path}/" : '';
43 $self->{config} = $opts->{config};
44 $self->{mergeinfo} = $opts->{mergeinfo};
49 my ($tree_a, $tree_b) = @_;
50 my @diff_tree = qw(diff-tree -z -r);
51 if ($_cp_similarity) {
52 push @diff_tree, "-C$_cp_similarity";
54 push @diff_tree, '-C';
56 push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
57 push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
58 push @diff_tree, $tree_a, $tree_b;
59 my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
64 chomp $_; # this gets rid of the trailing "\0"
65 if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
66 ($::sha1)\s($::sha1)\s
68 push @mods, { mode_a => $1, mode_b => $2,
69 sha1_a => $3, sha1_b => $4,
71 if ($5 =~ /^(?:C|R)$/) {
76 } elsif ($state eq 'file_a') {
77 my $x = $mods[$#mods] or croak "Empty array\n";
78 if ($x->{chg} !~ /^(?:C|R)$/) {
79 croak "Error parsing $_, $x->{chg}\n";
83 } elsif ($state eq 'file_b') {
84 my $x = $mods[$#mods] or croak "Empty array\n";
85 if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
86 croak "Error parsing $_, $x->{chg}\n";
88 if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
89 croak "Error parsing $_, $x->{chg}\n";
94 croak "Error parsing $_\n";
97 command_close_pipe($diff_fh, $ctx);
101 sub check_diff_paths {
102 my ($ra, $pfx, $rev, $mods) = @_;
104 $pfx .= '/' if length $pfx;
106 sub type_diff_paths {
107 my ($ra, $types, $path, $rev) = @_;
108 my @p = split m#/+#, $path;
110 unless (defined $types->{$c}) {
111 $types->{$c} = $ra->check_path($c, $rev);
114 $c .= '/' . shift @p;
115 next if defined $types->{$c};
116 $types->{$c} = $ra->check_path($c, $rev);
120 foreach my $m (@$mods) {
121 foreach my $f (qw/file_a file_b/) {
122 next unless defined $m->{$f};
123 my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
124 if (length $pfx.$dir && ! defined $types{$dir}) {
125 type_diff_paths($ra, \%types, $pfx.$dir, $rev);
133 return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
137 my ($self, $path) = @_;
138 if (my $enc = $self->{pathnameencoding}) {
140 Encode::from_to($path, $enc, 'UTF-8');
142 $self->{path_prefix}.(defined $path ? $path : '');
146 my ($self, $path) = @_;
147 if ($self->{url} =~ m#^https?://#) {
148 # characters are taken from subversion/libsvn_subr/path.c
149 $path =~ s#([^~a-zA-Z0-9_./!$&'()*+,-])#sprintf("%%%02X",ord($1))#eg;
151 $self->{url} . '/' . $self->repo_path($path);
156 my $rm = $self->{rm};
157 delete $rm->{''}; # we never delete the url we're tracking
160 foreach (keys %$rm) {
161 my @d = split m#/#, $_;
165 $c .= '/' . shift @d;
169 delete $rm->{$self->{svn_path}};
170 delete $rm->{''}; # we never delete the url we're tracking
173 my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
178 my @dn = split m#/#, $_;
180 delete $rm->{join '/', @dn};
187 command_close_pipe($fh, $ctx);
189 my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
190 foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
191 $self->close_directory($bat->{$d}, $p);
192 my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
193 print "\tD+\t$d/\n" unless $::_q;
194 $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
199 sub open_or_add_dir {
200 my ($self, $full_path, $baton, $deletions) = @_;
201 my $t = $self->{types}->{$full_path};
203 die "$full_path not known in r$self->{r} or we have a bug!\n";
207 # SVN::Node::none and SVN::Node::file are used only once,
208 # so we're shutting up Perl's warnings about them.
209 if ($t == $SVN::Node::none || defined($deletions->{$full_path})) {
210 return $self->add_directory($full_path, $baton,
211 undef, -1, $self->{pool});
212 } elsif ($t == $SVN::Node::dir) {
213 return $self->open_directory($full_path, $baton,
214 $self->{r}, $self->{pool});
215 } # no warnings 'once'
216 print STDERR "$full_path already exists in repository at ",
217 "r$self->{r} and it is not a directory (",
218 ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
219 } # no warnings 'once'
224 my ($self, $path, $deletions) = @_;
225 my $bat = $self->{bat};
226 my $repo_path = $self->repo_path($path);
227 return $bat->{''} unless (length $repo_path);
229 my @p = split m#/+#, $repo_path;
231 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''}, $deletions);
234 $c .= '/' . shift @p;
235 $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0}, $deletions);
240 # Subroutine to convert a globbing pattern to a regular expression.
241 # From perl cookbook.
244 my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
245 $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
246 return '^' . $globstr . '$';
250 my ($self, $pattern, $properties, $file, $fbat) = @_;
251 # Convert the globbing pattern to a regular expression.
252 my $regex = glob2pat($pattern);
253 # Check if the pattern matches the file name.
254 if($file =~ m/($regex)/) {
255 # Parse the list of properties to set.
256 my @props = split(/;/, $properties);
257 foreach my $prop (@props) {
258 # Parse 'name=value' syntax and set the property.
259 if ($prop =~ /([^=]+)=(.*)/) {
260 my ($n,$v) = ($1,$2);
264 $self->change_file_prop($fbat, $n, $v);
270 sub apply_autoprops {
271 my ($self, $file, $fbat) = @_;
272 my $conf_t = ${$self->{config}}{'config'};
274 # Check [miscellany]/enable-auto-props in svn configuration.
275 if (SVN::_Core::svn_config_get_bool(
277 $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
278 $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
280 # Auto-props are enabled. Enumerate them to look for matches.
282 $self->check_autoprop($_[0], $_[1], $file, $fbat);
284 SVN::_Core::svn_config_enumerate(
286 $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
292 my ($self, $m, $deletions) = @_;
293 my ($dir, $file) = split_path($m->{file_b});
294 my $pbat = $self->ensure_path($dir, $deletions);
295 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
297 print "\tA\t$m->{file_b}\n" unless $::_q;
298 $self->apply_autoprops($file, $fbat);
299 $self->chg_file($fbat, $m);
300 $self->close_file($fbat,undef,$self->{pool});
304 my ($self, $m, $deletions) = @_;
305 my ($dir, $file) = split_path($m->{file_b});
306 my $pbat = $self->ensure_path($dir, $deletions);
307 # workaround for a bug in svn serf backend (v1.8.5 and below):
308 # store third argument to ->add_file() in a local variable, to make it
309 # have the same lifetime as $fbat
310 my $upa = $self->url_path($m->{file_a});
311 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
313 print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
314 $self->chg_file($fbat, $m);
315 $self->close_file($fbat,undef,$self->{pool});
319 my ($self, $path, $pbat) = @_;
320 my $rpath = $self->repo_path($path);
321 my ($dir, $file) = split_path($rpath);
322 $self->{rm}->{$dir} = 1;
323 $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
327 my ($self, $m, $deletions) = @_;
328 my ($dir, $file) = split_path($m->{file_b});
329 my $pbat = $self->ensure_path($dir, $deletions);
330 # workaround for a bug in svn serf backend, see comment in C() above
331 my $upa = $self->url_path($m->{file_a});
332 my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
334 print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
335 $self->apply_autoprops($file, $fbat);
336 $self->chg_file($fbat, $m);
337 $self->close_file($fbat,undef,$self->{pool});
339 ($dir, $file) = split_path($m->{file_a});
340 $pbat = $self->ensure_path($dir, $deletions);
341 $self->delete_entry($m->{file_a}, $pbat);
345 my ($self, $m, $deletions) = @_;
346 my ($dir, $file) = split_path($m->{file_b});
347 my $pbat = $self->ensure_path($dir, $deletions);
348 my $fbat = $self->open_file($self->repo_path($m->{file_b}),
349 $pbat,$self->{r},$self->{pool});
350 print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
351 $self->chg_file($fbat, $m);
352 $self->close_file($fbat,undef,$self->{pool});
356 my ($self, $m, $deletions) = @_;
358 # Work around subversion issue 4091: toggling the "is a
359 # symlink" property requires removing and re-adding a
360 # file or else "svn up" on affected clients trips an
361 # assertion and aborts.
362 if (($m->{mode_b} =~ /^120/ && $m->{mode_a} !~ /^120/) ||
363 ($m->{mode_b} !~ /^120/ && $m->{mode_a} =~ /^120/)) {
365 mode_a => $m->{mode_a}, mode_b => '000000',
366 sha1_a => $m->{sha1_a}, sha1_b => '0' x 40,
367 chg => 'D', file_b => $m->{file_b}
370 mode_a => '000000', mode_b => $m->{mode_b},
371 sha1_a => '0' x 40, sha1_b => $m->{sha1_b},
372 chg => 'A', file_b => $m->{file_b}
377 $self->M($m, $deletions);
380 sub change_file_prop {
381 my ($self, $fbat, $pname, $pval) = @_;
382 $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
385 sub change_dir_prop {
386 my ($self, $pbat, $pname, $pval) = @_;
387 $self->SUPER::change_dir_prop($pbat, $pname, $pval, $self->{pool});
390 sub _chg_file_get_blob ($$$$) {
391 my ($self, $fbat, $m, $which) = @_;
392 my $fh = $::_repository->temp_acquire("git_blob_$which");
393 if ($m->{"mode_$which"} =~ /^120/) {
394 print $fh 'link ' or croak $!;
395 $self->change_file_prop($fbat,'svn:special','*');
396 } elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) {
397 $self->change_file_prop($fbat,'svn:special',undef);
399 my $blob = $m->{"sha1_$which"};
400 return ($fh,) if ($blob =~ /^0{40}$/);
401 my $size = $::_repository->cat_blob($blob, $fh);
402 croak "Failed to read object $blob" if ($size < 0);
403 $fh->flush == 0 or croak $!;
404 seek $fh, 0, 0 or croak $!;
406 my $exp = ::md5sum($fh);
407 seek $fh, 0, 0 or croak $!;
412 my ($self, $fbat, $m) = @_;
413 if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
414 $self->change_file_prop($fbat,'svn:executable','*');
415 } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
416 $self->change_file_prop($fbat,'svn:executable',undef);
418 my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a';
419 my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b';
420 my $pool = SVN::Pool->new;
421 my $atd = $self->apply_textdelta($fbat, $exp_a, $pool);
423 my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool);
424 my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool);
426 die "Unexpected result from send_txstream: $res\n",
427 "(SVN::Core::VERSION: $SVN::Core::VERSION)\n";
430 my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool);
431 die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n"
434 Git::temp_release($fh_b, 1);
435 Git::temp_release($fh_a, 1);
440 my ($self, $m, $deletions) = @_;
441 my ($dir, $file) = split_path($m->{file_b});
442 my $pbat = $self->ensure_path($dir, $deletions);
443 print "\tD\t$m->{file_b}\n" unless $::_q;
444 $self->delete_entry($m->{file_b}, $pbat);
449 my ($p,$bat) = ($self->{pool}, $self->{bat});
450 foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
452 $self->close_directory($bat->{$_}, $p);
454 $self->close_directory($bat->{''}, $p);
455 $self->SUPER::close_edit($p);
461 $self->SUPER::abort_edit($self->{pool});
466 $self->SUPER::DESTROY(@_);
467 $self->{pool}->clear;
470 # this drives the editor
473 my $mods = $self->{mods};
474 my %o = ( D => 0, C => 1, R => 2, A => 3, M => 4, T => 5 );
477 foreach my $m (@$mods) {
478 if ($m->{chg} eq "D") {
479 $deletions{$m->{file_b}} = 1;
483 foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
485 if (defined $o{$f}) {
486 $self->$f($m, \%deletions);
488 fatal("Invalid change type: $f");
492 if (defined($self->{mergeinfo})) {
493 $self->change_dir_prop($self->{bat}{''}, "svn:mergeinfo",
496 $self->rmdirs if $_rmdir;
497 if (@$mods == 0 && !defined($self->{mergeinfo})) {
502 return scalar @$mods;
510 Git::SVN::Editor - commit driver for "git svn set-tree" and dcommit
514 use Git::SVN::Editor;
517 my $ra = Git::SVN::Ra->new($url);
520 log => "log message",
522 config => SVN::Core::config_get_config($svn_config_dir),
523 tree_a => "$commit^",
525 editor_cb => sub { print "Committed r$_[0]\n"; },
526 mergeinfo => "/branches/foo:1-10",
529 Git::SVN::Editor->new(\%opts)->apply_diff or print "No changes\n";
531 my $re = Git::SVN::Editor::glob2pat("trunk/*");
532 if ($branchname =~ /$re/) {
538 This module is an implementation detail of the "git svn" command.
539 Do not use it unless you are developing git-svn.
541 This module adapts the C<SVN::Delta::Editor> object returned by
542 C<SVN::Delta::get_commit_editor> and drives it to convey the
543 difference between two git tree objects to a remote Subversion
546 The interface will change as git-svn evolves.
550 Subversion perl bindings,
551 the core L<Carp> and L<IO::File> modules,
552 and git's L<Git> helper module.
554 C<Git::SVN::Editor> has not been tested using callers other than
560 L<Git::SVN::Fetcher>.
562 =head1 INCOMPATIBILITIES