4 use Fcntl qw/:DEFAULT :seek/;
5 use constant rev_map_fmt => 'NH40';
6 use vars qw/$_no_metadata
7 $_repack $_repack_flags $_use_svm_props $_head
8 $_use_svnsync_props $no_reuse_existing
9 $_use_log_author $_add_author_from $_localtime/;
11 use File::Path qw/mkpath/;
12 use File::Copy qw/copy/;
15 use Memoize; # core since 5.8.0, Jul 2002
16 use Memoize::Storable;
17 use POSIX qw(:signal_h);
26 use Git::SVN::Utils qw(
37 $can_use_yaml = eval { require Git::SVN::Memoize::YAML; 1};
40 our $_follow_parent = 1;
41 our $_minimize_url = 'unset';
42 our $default_repo_id = 'svn';
43 our $default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn';
45 my ($_gc_nr, $_gc_period);
47 # properties that we do not log:
50 %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
51 svn:special svn:executable
52 svn:entry:committed-rev
55 svn:entry:committed-date/;
57 # some options are read globally, but can be overridden locally
58 # per [svn-remote "..."] section. Command-line options will *NOT*
59 # override options set in an [svn-remote "..."] section
61 for my $option (qw/follow_parent no_metadata use_svm_props
65 my $prop = "-$option";
68 return $self->{$prop} if exists $self->{$prop};
69 my $k = "svn-remote.$self->{repo_id}.$key";
70 eval { command_oneline(qw/config --get/, $k) };
72 $self->{$prop} = ${"Git::SVN::_$option"};
74 my $v = command_oneline(qw/config --bool/,$k);
75 $self->{$prop} = $v eq 'false' ? 0 : 1;
77 return $self->{$prop};
83 my (%LOCKFILES, %INDEX_FILES);
85 unlink keys %LOCKFILES if %LOCKFILES;
86 unlink keys %INDEX_FILES if %INDEX_FILES;
89 sub resolve_local_globs {
90 my ($url, $fetch, $glob_spec) = @_;
91 return unless defined $glob_spec;
92 my $ref = $glob_spec->{ref};
93 my $path = $glob_spec->{path};
94 foreach (command(qw#for-each-ref --format=%(refname) refs/#)) {
95 next unless m#^$ref->{regex}$#;
97 my $pathname = desanitize_refname($path->full_path($p));
98 my $refname = desanitize_refname($ref->full_path($p));
99 if (my $existing = $fetch->{$pathname}) {
100 if ($existing ne $refname) {
101 die "Refspec conflict:\n",
102 "existing: $existing\n",
103 " globbed: $refname\n";
105 my $u = (::cmt_metadata("$refname"))[0];
106 $u =~ s!^\Q$url\E(/|$)!! or die
107 "$refname: '$url' not found in '$u'\n";
108 if ($pathname ne $u) {
109 warn "W: Refspec glob conflict ",
110 "(ref: $refname):\n",
111 "expected path: $pathname\n",
113 "Continuing ahead with $u\n";
117 $fetch->{$pathname} = $refname;
122 sub parse_revision_argument {
123 my ($base, $head) = @_;
124 if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
125 return ($base, $head);
127 return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
128 return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
129 return ($head, $head) if ($::_revision eq 'HEAD');
130 return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
131 return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
132 die "revision argument: $::_revision not understood by git-svn\n";
136 my ($repo_id, $remotes) = @_;
140 $repo_id = $gs->{repo_id};
142 $remotes ||= read_all_remotes();
143 my $remote = $remotes->{$repo_id} or
144 die "[svn-remote \"$repo_id\"] unknown\n";
145 my $fetch = $remote->{fetch};
146 my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
148 my $ra = Git::SVN::Ra->new($url);
149 my $uuid = $ra->get_uuid;
150 my $head = $ra->get_latest_revnum;
152 # ignore errors, $head revision may not even exist anymore
153 eval { $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] }) };
154 warn "W: $@\n" if $@;
156 my $base = defined $fetch ? $head : 0;
158 # read the max revs for wildcard expansion (branches/*, tags/*)
159 foreach my $t (qw/branches tags/) {
160 defined $remote->{$t} or next;
161 push @globs, @{$remote->{$t}};
163 my $max_rev = eval { tmp_config(qw/--int --get/,
164 "svn-remote.$repo_id.${t}-maxRev") };
165 if (defined $max_rev && ($max_rev < $base)) {
167 } elsif (!defined $max_rev) {
173 foreach my $p (sort keys %$fetch) {
174 my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
175 my $lr = $gs->rev_map_max;
177 $base = $lr if ($lr < $base);
183 ($base, $head) = parse_revision_argument($base, $head);
184 $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
187 sub read_all_remotes {
189 my $use_svm_props = eval { command_oneline(qw/config --bool
191 $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
192 my $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*};
193 foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
194 if (m!^(.+)\.fetch=$svn_refspec$!) {
195 my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
196 die("svn-remote.$remote: remote ref '$remote_ref' "
197 . "must start with 'refs/'\n")
198 unless $remote_ref =~ m{^refs/};
199 $local_ref = uri_decode($local_ref);
200 $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
201 $r->{$remote}->{svm} = {} if $use_svm_props;
202 } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
203 $r->{$1}->{svm} = {};
204 } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
205 $r->{$1}->{url} = canonicalize_url($2);
206 } elsif (m!^(.+)\.pushurl=\s*(.*)\s*$!) {
207 $r->{$1}->{pushurl} = canonicalize_url($2);
208 } elsif (m!^(.+)\.ignore-refs=\s*(.*)\s*$!) {
209 $r->{$1}->{ignore_refs_regex} = $2;
210 } elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) {
211 my ($remote, $t, $local_ref, $remote_ref) =
213 die("svn-remote.$remote: remote ref '$remote_ref' ($t) "
214 . "must start with 'refs/'\n")
215 unless $remote_ref =~ m{^refs/};
216 $local_ref = uri_decode($local_ref);
218 require Git::SVN::GlobSpec;
222 path => Git::SVN::GlobSpec->new($local_ref, 1),
223 ref => Git::SVN::GlobSpec->new($remote_ref, 0) };
224 if (length($rs->{ref}->{right}) != 0) {
225 die "The '*' glob character must be the last ",
226 "character of '$remote_ref'\n";
228 push @{ $r->{$remote}->{$t} }, $rs;
233 if (defined $r->{$_}->{svm}) {
236 my $section = "svn-remote.$_";
238 source => tmp_config('--get',
239 "$section.svm-source"),
240 replace => tmp_config('--get',
241 "$section.svm-replace"),
244 $r->{$_}->{svm} = $svm;
248 foreach my $remote (keys %$r) {
249 foreach ( grep { defined $_ }
250 map { $r->{$remote}->{$_} } qw(branches tags) ) {
251 foreach my $rs ( @$_ ) {
252 $rs->{ignore_refs_regex} =
253 $r->{$remote}->{ignore_refs_regex};
262 $_gc_nr = $_gc_period = 1000;
263 if (defined $_repack || defined $_repack_flags) {
264 warn "Repack options are obsolete; they have no effect.\n";
268 sub verify_remotes_sanity {
269 return unless -d $ENV{GIT_DIR};
271 foreach (command(qw/config -l/)) {
272 if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
274 die "Remote ref refs/remote/$1 is tracked by",
275 "\n \"$_\"\nand\n \"$seen{$1}\"\n",
276 "Please resolve this ambiguity in ",
277 "your git configuration file before ",
285 sub find_existing_remote {
286 my ($url, $remotes) = @_;
287 return undef if $no_reuse_existing;
289 foreach my $repo_id (keys %$remotes) {
290 my $u = $remotes->{$repo_id}->{url} or next;
292 $existing = $repo_id;
298 sub init_remote_config {
299 my ($self, $url, $no_write) = @_;
300 $url = canonicalize_url($url);
301 my $r = read_all_remotes();
302 my $existing = find_existing_remote($url, $r);
305 print STDERR "Using existing ",
306 "[svn-remote \"$existing\"]\n";
308 $self->{repo_id} = $existing;
309 } elsif ($_minimize_url) {
310 my $min_url = Git::SVN::Ra->new($url)->minimize_url;
311 $existing = find_existing_remote($min_url, $r);
314 print STDERR "Using existing ",
315 "[svn-remote \"$existing\"]\n";
317 $self->{repo_id} = $existing;
319 if ($min_url ne $url) {
321 print STDERR "Using higher level of URL: ",
322 "$url => $min_url\n";
324 my $old_path = $self->path;
325 $url =~ s!^\Q$min_url\E(/|$)!!;
326 $url = join_paths($url, $old_path);
333 # verify that we aren't overwriting anything:
335 command_oneline('config', '--get',
336 "svn-remote.$self->{repo_id}.url")
338 if ($orig_url && ($orig_url ne $url)) {
339 die "svn-remote.$self->{repo_id}.url already set: ",
340 "$orig_url\nwanted to set to: $url\n";
343 my ($xrepo_id, $xpath) = find_ref($self->refname);
344 if (!$no_write && defined $xpath) {
345 die "svn-remote.$xrepo_id.fetch already set to track ",
346 "$xpath:", $self->refname, "\n";
349 command_noisy('config',
350 "svn-remote.$self->{repo_id}.url", $url);
351 my $path = $self->path;
353 $path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
355 command_noisy('config', '--add',
356 "svn-remote.$self->{repo_id}.fetch",
357 $self->path.":".$self->refname);
362 sub find_by_url { # repos_root and, path are optional
363 my ($class, $full_url, $repos_root, $path) = @_;
365 return undef unless defined $full_url;
366 remove_username($full_url);
367 remove_username($repos_root) if defined $repos_root;
368 my $remotes = read_all_remotes();
369 if (defined $full_url && defined $repos_root && !defined $path) {
371 $path =~ s#^\Q$repos_root\E(?:/|$)##;
373 foreach my $repo_id (keys %$remotes) {
374 my $u = $remotes->{$repo_id}->{url} or next;
376 next if defined $repos_root && $repos_root ne $u;
378 my $fetch = $remotes->{$repo_id}->{fetch} || {};
379 foreach my $t (qw/branches tags/) {
380 foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) {
381 resolve_local_globs($u, $fetch, $globspec);
385 my $rwr = rewrite_root({repo_id => $repo_id});
386 my $svm = $remotes->{$repo_id}->{svm}
387 if defined $remotes->{$repo_id}->{svm};
388 unless (defined $p) {
395 } elsif (defined $svm) {
397 $prefix = $svm->{replace};
398 $prefix =~ s#^\Q$u\E(?:/|$)##;
401 $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
403 foreach my $f (keys %$fetch) {
405 return Git::SVN->new($fetch->{$f}, $repo_id, $f);
412 my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
413 my $self = _new($class, $repo_id, $ref_id, $path);
415 $self->init_remote_config($url, $no_write);
422 foreach (command(qw/config -l/)) {
423 next unless m!^svn-remote\.(.+)\.fetch=
424 \s*(.*?)\s*:\s*(.+?)\s*$!x;
425 my ($repo_id, $path, $ref) = ($1, $2, $3);
426 if ($ref eq $ref_id) {
427 $path = '' if ($path =~ m#^\./?#);
428 return ($repo_id, $path);
431 (undef, undef, undef);
435 my ($class, $ref_id, $repo_id, $path) = @_;
436 if (defined $ref_id && !defined $repo_id && !defined $path) {
437 ($repo_id, $path) = find_ref($ref_id);
438 if (!defined $repo_id) {
439 die "Could not find a \"svn-remote.*.fetch\" key ",
440 "in the repository configuration matching: ",
444 my $self = _new($class, $repo_id, $ref_id, $path);
445 if (!defined $self->path || !length $self->path) {
446 my $fetch = command_oneline('config', '--get',
447 "svn-remote.$repo_id.fetch",
449 die "Failed to read \"svn-remote.$repo_id.fetch\" ",
450 "\":$ref_id\$\" in config\n";
451 my($path) = split(/\s*:\s*/, $fetch);
455 my $path = $self->path;
461 my $url = command_oneline('config', '--get',
462 "svn-remote.$repo_id.url") or
463 die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
465 $self->{pushurl} = eval { command_oneline('config', '--get',
466 "svn-remote.$repo_id.pushurl") };
472 my ($refname) = $_[0]->{ref_id} ;
474 # It cannot end with a slash /, we'll throw up on this because
475 # SVN can't have directories with a slash in their name, either:
476 if ($refname =~ m{/$}) {
477 die "ref: '$refname' ends with a trailing slash, this is ",
478 "not permitted by git nor Subversion\n";
481 # It cannot have ASCII control character space, tilde ~, caret ^,
482 # colon :, question-mark ?, asterisk *, space, or open bracket [
485 # Additionally, % must be escaped because it is used for escaping
486 # and we want our escaped refname to be reversible
487 $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
489 # no slash-separated component can begin with a dot .
491 $refname =~ s{/\.}{/%2E}g;
493 # It cannot have two consecutive dots .. anywhere
495 $refname =~ s{\.\.}{%2E%2E}g;
497 # trailing dots and .lock are not allowed
498 # .$ becomes %2E and .lock becomes %2Elock
499 $refname =~ s{\.(?=$|lock$)}{%2E};
501 # the sequence @{ is used to access the reflog
503 $refname =~ s{\@\{}{%40\{}g;
508 sub desanitize_refname {
510 $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
516 return $self->{svm}->{uuid} if $self->svm;
518 unless ($self->{svm}) {
519 die "SVM UUID not cached, and reading remotely failed\n";
521 $self->{svm}->{uuid};
526 return $self->{svm} if $self->{svm};
528 # see if we have it in our config, first:
530 my $section = "svn-remote.$self->{repo_id}";
532 source => tmp_config('--get', "$section.svm-source"),
533 uuid => tmp_config('--get', "$section.svm-uuid"),
534 replace => tmp_config('--get', "$section.svm-replace"),
537 if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
544 my ($self, $ra) = @_;
545 return $ra if $self->svm;
547 my @err = ( "useSvmProps set, but failed to read SVM properties\n",
548 "(svm:source, svm:uuid) ",
549 "from the following URLs:\n" );
551 my ($self, $ra, $path, $r) = @_;
552 my $props = ($ra->get_dir($path, $r))[2];
553 my $src = $props->{'svm:source'};
554 my $uuid = $props->{'svm:uuid'};
555 return undef if (!$src || !$uuid);
559 $uuid =~ m{^[0-9a-f\-]{30,}$}i
560 or die "doesn't look right - svm:uuid is '$uuid'\n";
562 # the '!' is used to mark the repos_root!/relative/path
564 $src =~ s{/+$}{}; # no trailing slashes please
565 # username is of no interest
566 $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
568 my $replace = add_path_to_url($ra->url, $path);
570 my $section = "svn-remote.$self->{repo_id}";
571 tmp_config("$section.svm-source", $src);
572 tmp_config("$section.svm-replace", $replace);
573 tmp_config("$section.svm-uuid", $uuid);
581 my $r = $ra->get_latest_revnum;
582 my $path = $self->path;
584 while (length $path) {
585 my $try = add_path_to_url($self->url, $path);
586 unless ($tried{$try}) {
587 return $ra if $self->read_svm_props($ra, $path, $r);
590 $path =~ s#/?[^/]+$##;
592 die "Path: '$path' should be ''\n" if $path ne '';
593 return $ra if $self->read_svm_props($ra, $path, $r);
594 $tried{ add_path_to_url($self->url, $path) } = 1;
596 if ($ra->{repos_root} eq $self->url) {
597 die @err, (map { " $_\n" } keys %tried), "\n";
600 # nope, make sure we're connected to the repository root:
603 $path = $ra->{svn_path};
604 $ra = Git::SVN::Ra->new($ra->{repos_root});
605 while (length $path) {
606 my $try = add_path_to_url($ra->url, $path);
607 unless ($tried{$try}) {
608 $ok = $self->read_svm_props($ra, $path, $r);
612 $path =~ s#/?[^/]+$##;
614 die "Path: '$path' should be ''\n" if $path ne '';
615 $ok ||= $self->read_svm_props($ra, $path, $r);
616 $tried{ add_path_to_url($ra->url, $path) } = 1;
618 die @err, (map { " $_\n" } keys %tried), "\n";
620 Git::SVN::Ra->new($self->url);
625 return $self->{svnsync} if $self->{svnsync};
627 if ($self->no_metadata) {
628 die "Can't have both 'noMetadata' and ",
629 "'useSvnsyncProps' options set!\n";
631 if ($self->rewrite_root) {
632 die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
635 if ($self->rewrite_uuid) {
636 die "Can't have both 'useSvnsyncProps' and 'rewriteUUID' ",
641 # see if we have it in our config, first:
643 my $section = "svn-remote.$self->{repo_id}";
645 my $url = tmp_config('--get', "$section.svnsync-url");
646 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
647 die "doesn't look right - svn:sync-from-url is '$url'\n";
649 my $uuid = tmp_config('--get', "$section.svnsync-uuid");
650 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
651 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
653 $svnsync = { url => $url, uuid => $uuid }
655 if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
656 return $self->{svnsync} = $svnsync;
659 my $err = "useSvnsyncProps set, but failed to read " .
660 "svnsync property: svn:sync-from-";
661 my $rp = $self->ra->rev_proplist(0);
663 my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
664 ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
665 die "doesn't look right - svn:sync-from-url is '$url'\n";
667 my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
668 ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
669 die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
671 my $section = "svn-remote.$self->{repo_id}";
672 tmp_config('--add', "$section.svnsync-uuid", $uuid);
673 tmp_config('--add', "$section.svnsync-url", $url);
674 return $self->{svnsync} = { url => $url, uuid => $uuid };
677 # this allows us to memoize our SVN::Ra UUID locally and avoid a
678 # remote lookup (useful for 'git svn log').
681 unless ($self->{ra_uuid}) {
682 my $key = "svn-remote.$self->{repo_id}.uuid";
683 my $uuid = eval { tmp_config('--get', $key) };
684 if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
685 $self->{ra_uuid} = $uuid;
687 die "ra_uuid called without URL\n" unless $self->url;
688 $self->{ra_uuid} = $self->ra->get_uuid;
689 tmp_config('--add', $key, $self->{ra_uuid});
695 sub _set_repos_root {
696 my ($self, $repos_root) = @_;
697 my $k = "svn-remote.$self->{repo_id}.reposRoot";
698 $repos_root ||= $self->ra->{repos_root};
699 tmp_config($k, $repos_root);
705 my $k = "svn-remote.$self->{repo_id}.reposRoot";
706 eval { tmp_config('--get', $k) } || $self->_set_repos_root;
711 my $ra = Git::SVN::Ra->new($self->url);
712 $self->_set_repos_root($ra->{repos_root});
713 if ($self->use_svm_props && !$self->{svm}) {
714 if ($self->no_metadata) {
715 die "Can't have both 'noMetadata' and ",
716 "'useSvmProps' options set!\n";
717 } elsif ($self->use_svnsync_props) {
718 die "Can't have both 'useSvnsyncProps' and ",
719 "'useSvmProps' options set!\n";
721 $ra = $self->_set_svm_vars($ra);
722 $self->{-want_revprops} = 1;
727 # prop_walk(PATH, REV, SUB)
728 # -------------------------
729 # Recursively traverse PATH at revision REV and invoke SUB for each
730 # directory that contains a SVN property. SUB will be invoked as
731 # follows: &SUB(gs, path, props); where `gs' is this instance of
732 # Git::SVN, `path' the path to the directory where the properties
733 # `props' were found. The `path' will be relative to point of checkout,
734 # that is, if url://repo/trunk is the current Git branch, and that
735 # directory contains a sub-directory `d', SUB will be invoked with `/d/'
736 # as `path' (note the trailing `/').
738 my ($self, $path, $rev, $sub) = @_;
741 my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
744 # Strip the irrelevant part of the path.
745 $p =~ s#^/+\Q@{[$self->path]}\E(/|$)#/#;
746 # Ensure the path is terminated by a `/'.
749 # The properties contain all the internal SVN stuff nobody
750 # (usually) cares about.
751 my $interesting_props = 0;
752 foreach (keys %{$props}) {
753 # If it doesn't start with `svn:', it must be a
754 # user-defined property.
755 ++$interesting_props and next if $_ !~ /^svn:/;
756 # FIXME: Fragile, if SVN adds new public properties,
757 # this needs to be updated.
758 ++$interesting_props if /^svn:(?:ignore|keywords|executable
760 |externals|needs-lock)$/x;
762 &$sub($self, $p, $props) if $interesting_props;
764 foreach (sort keys %$dirent) {
765 next if $dirent->{$_}->{kind} != $SVN::Node::dir;
766 $self->prop_walk($self->path . $p . $_, $rev, $sub);
770 sub last_rev { ($_[0]->last_rev_commit)[0] }
771 sub last_commit { ($_[0]->last_rev_commit)[1] }
773 # returns the newest SVN revision number and newest commit SHA1
774 sub last_rev_commit {
776 if (defined $self->{last_rev} && defined $self->{last_commit}) {
777 return ($self->{last_rev}, $self->{last_commit});
779 my $c = ::verify_ref($self->refname.'^0');
780 if ($c && !$self->use_svm_props && !$self->no_metadata) {
781 my $rev = (::cmt_metadata($c))[1];
783 ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
787 my $map_path = $self->map_path;
788 unless (-e $map_path) {
789 ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
790 return (undef, undef);
792 my ($rev, $commit) = $self->rev_map_max(1);
793 ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
794 return ($rev, $commit);
797 sub get_fetch_range {
798 my ($self, $min, $max) = @_;
799 $max ||= $self->ra->get_latest_revnum;
800 $min ||= $self->rev_map_max;
806 my $old_def_config = "$ENV{GIT_DIR}/svn/config";
807 my $config = "$ENV{GIT_DIR}/svn/.metadata";
808 if (! -f $config && -f $old_def_config) {
809 rename $old_def_config, $config or
810 die "Failed rename $old_def_config => $config: $!\n";
812 my $old_config = $ENV{GIT_CONFIG};
813 $ENV{GIT_CONFIG} = $config;
816 unless (-f $config) {
818 open my $fh, '>', $config or
819 die "Can't open $config: $!\n";
820 print $fh "; This file is used internally by ",
822 "Couldn't write to $config: $!\n";
823 print $fh "; You should not have to edit it\n" or
824 die "Couldn't write to $config: $!\n";
825 close $fh or die "Couldn't close $config: $!\n";
827 command('config', @args);
830 if (defined $old_config) {
831 $ENV{GIT_CONFIG} = $old_config;
833 delete $ENV{GIT_CONFIG};
836 wantarray ? @ret : $ret[0];
840 my ($self, $sub) = @_;
841 my $old_index = $ENV{GIT_INDEX_FILE};
842 $ENV{GIT_INDEX_FILE} = $self->{index};
845 my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
846 mkpath([$dir]) unless -d $dir;
850 if (defined $old_index) {
851 $ENV{GIT_INDEX_FILE} = $old_index;
853 delete $ENV{GIT_INDEX_FILE};
856 wantarray ? @ret : $ret[0];
859 sub assert_index_clean {
860 my ($self, $treeish) = @_;
862 $self->tmp_index_do(sub {
863 command_noisy('read-tree', $treeish) unless -e $self->{index};
864 my $x = command_oneline('write-tree');
865 my ($y) = (command(qw/cat-file commit/, $treeish) =~
866 /^tree ($::sha1)/mo);
869 warn "Index mismatch: $y != $x\nrereading $treeish\n";
870 unlink $self->{index} or die "unlink $self->{index}: $!\n";
871 command_noisy('read-tree', $treeish);
872 $x = command_oneline('write-tree');
874 fatal "trees ($treeish) $y != $x\n",
875 "Something is seriously wrong...";
880 sub get_commit_parents {
881 my ($self, $log_entry) = @_;
882 my (%seen, @ret, @tmp);
883 # legacy support for 'set-tree'; this is only used by set_tree_cb:
884 if (my $ip = $self->{inject_parents}) {
885 if (my $commit = delete $ip->{$log_entry->{revision}}) {
889 if (my $cur = ::verify_ref($self->refname.'^0')) {
892 if (my $ipd = $self->{inject_parents_dcommit}) {
893 if (my $commit = delete $ipd->{$log_entry->{revision}}) {
897 push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
898 while (my $p = shift @tmp) {
908 return $self->{-rewrite_root} if exists $self->{-rewrite_root};
909 my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
910 my $rwr = eval { command_oneline(qw/config --get/, $k) };
913 if ($rwr !~ m#^[a-z\+]+://#) {
914 die "$rwr is not a valid URL (key: $k)\n";
917 $self->{-rewrite_root} = $rwr;
922 return $self->{-rewrite_uuid} if exists $self->{-rewrite_uuid};
923 my $k = "svn-remote.$self->{repo_id}.rewriteUUID";
924 my $rwid = eval { command_oneline(qw/config --get/, $k) };
927 if ($rwid !~ m#^[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}$#) {
928 die "$rwid is not a valid UUID (key: $k)\n";
931 $self->{-rewrite_uuid} = $rwid;
936 my $url = $self->rewrite_root || $self->url;
937 return add_path_to_url( $url, $self->path );
942 return add_path_to_url( $self->url, $self->path );
947 if ($self->{pushurl}) {
948 return add_path_to_url( $self->{pushurl}, $self->path );
950 return $self->full_url;
954 sub set_commit_header_env {
955 my ($log_entry) = @_;
957 foreach my $ned (qw/NAME EMAIL DATE/) {
958 foreach my $ac (qw/AUTHOR COMMITTER/) {
959 $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
963 $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
964 $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
965 $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
967 $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
968 ? $log_entry->{commit_name}
969 : $log_entry->{name};
970 $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
971 ? $log_entry->{commit_email}
972 : $log_entry->{email};
976 sub restore_commit_header_env {
978 foreach my $ned (qw/NAME EMAIL DATE/) {
979 foreach my $ac (qw/AUTHOR COMMITTER/) {
980 my $k = "GIT_${ac}_${ned}";
981 if (defined $env->{$k}) {
982 $ENV{$k} = $env->{$k};
991 command_noisy('gc', '--auto');
995 my ($self, $log_entry) = @_;
996 my $lr = $self->last_rev;
997 if (defined $lr && $lr >= $log_entry->{revision}) {
998 die "Last fetched revision of ", $self->refname,
999 " was r$lr, but we are about to fetch: ",
1000 "r$log_entry->{revision}!\n";
1002 if (my $c = $self->rev_map_get($log_entry->{revision})) {
1003 croak "$log_entry->{revision} = $c already exists! ",
1004 "Why are we refetching it?\n";
1006 my $old_env = set_commit_header_env($log_entry);
1007 my $tree = $log_entry->{tree};
1008 if (!defined $tree) {
1009 $tree = $self->tmp_index_do(sub {
1010 command_oneline('write-tree') });
1012 die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
1014 my @exec = ('git', 'commit-tree', $tree);
1015 foreach ($self->get_commit_parents($log_entry)) {
1016 push @exec, '-p', $_;
1018 defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
1022 # we always get UTF-8 from SVN, but we may want our commits in
1023 # a different encoding.
1024 if (my $enc = Git::config('i18n.commitencoding')) {
1026 Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
1028 print $msg_fh $log_entry->{log} or croak $!;
1029 restore_commit_header_env($old_env);
1030 unless ($self->no_metadata) {
1031 print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
1034 $msg_fh->flush == 0 or croak $!;
1035 close $msg_fh or croak $!;
1036 chomp(my $commit = do { local $/; <$out_fh> });
1037 close $out_fh or croak $!;
1040 if ($commit !~ /^$::sha1$/o) {
1041 die "Failed to commit, invalid sha1: $commit\n";
1044 $self->rev_map_set($log_entry->{revision}, $commit, 1);
1046 $self->{last_rev} = $log_entry->{revision};
1047 $self->{last_commit} = $commit;
1048 print "r$log_entry->{revision}" unless $::_q > 1;
1049 if (defined $log_entry->{svm_revision}) {
1050 print " (\@$log_entry->{svm_revision})" unless $::_q > 1;
1051 $self->rev_map_set($log_entry->{svm_revision}, $commit,
1052 0, $self->svm_uuid);
1054 print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
1055 if (--$_gc_nr == 0) {
1056 $_gc_nr = $_gc_period;
1063 my ($self, $paths, $r) = @_;
1064 return 1 if $self->path eq '';
1065 if (my $path = $paths->{"/".$self->path}) {
1066 return ($path->{action} eq 'D') ? 0 : 1;
1068 $self->{path_regex} ||= qr{^/\Q@{[$self->path]}\E/};
1069 if (grep /$self->{path_regex}/, keys %$paths) {
1073 foreach (split m#/#, $self->path) {
1075 next unless ($paths->{$c} &&
1076 ($paths->{$c}->{action} =~ /^[AR]$/));
1077 if ($self->ra->check_path($self->path, $r) ==
1085 sub find_parent_branch {
1086 my ($self, $paths, $rev) = @_;
1087 return undef unless $self->follow_parent;
1088 unless (defined $paths) {
1089 my $err_handler = $SVN::Error::handler;
1090 $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
1091 $self->ra->get_log([$self->path], $rev, $rev, 0, 1, 1,
1092 sub { $paths = $_[0] });
1093 $SVN::Error::handler = $err_handler;
1095 return undef unless defined $paths;
1097 # look for a parent from another branch:
1098 my @b_path_components = split m#/#, $self->path;
1099 my @a_path_components;
1101 while (@b_path_components) {
1102 $i = $paths->{'/'.join('/', @b_path_components)};
1103 last if $i && defined $i->{copyfrom_path};
1104 unshift(@a_path_components, pop(@b_path_components));
1106 return undef unless defined $i && defined $i->{copyfrom_path};
1107 my $branch_from = $i->{copyfrom_path};
1108 if (@a_path_components) {
1109 print STDERR "branch_from: $branch_from => ";
1110 $branch_from .= '/'.join('/', @a_path_components);
1111 print STDERR $branch_from, "\n";
1113 my $r = $i->{copyfrom_rev};
1114 my $repos_root = $self->ra->{repos_root};
1115 my $url = $self->ra->url;
1116 my $new_url = add_path_to_url( $url, $branch_from );
1117 print STDERR "Found possible branch point: ",
1118 "$new_url => ", $self->full_url, ", $r\n"
1120 $branch_from =~ s#^/##;
1121 my $gs = $self->other_gs($new_url, $url,
1122 $branch_from, $r, $self->{ref_id});
1123 my ($r0, $parent) = $gs->find_rev_before($r, 1);
1126 if (!defined $r0 || !defined $parent) {
1127 ($base, $head) = parse_revision_argument(0, $r);
1130 $gs->ra->get_log([$gs->path], $r0 + 1, $r, 1,
1131 0, 1, sub { $base = $_[1] - 1 });
1134 if (defined $base && $base <= $r) {
1135 $gs->fetch($base, $r);
1137 ($r0, $parent) = $gs->find_rev_before($r, 1);
1139 if (defined $r0 && defined $parent) {
1140 print STDERR "Found branch parent: ($self->{ref_id}) $parent\n"
1143 if ($self->ra->can_do_switch) {
1144 $self->assert_index_clean($parent);
1145 print STDERR "Following parent with do_switch\n"
1147 # do_switch works with svn/trunk >= r22312, but that
1148 # is not included with SVN 1.4.3 (the latest version
1149 # at the moment), so we can't rely on it
1150 $self->{last_rev} = $r0;
1151 $self->{last_commit} = $parent;
1152 $ed = Git::SVN::Fetcher->new($self, $gs->path);
1153 $gs->ra->gs_do_switch($r0, $rev, $gs,
1154 $self->full_url, $ed)
1155 or die "SVN connection failed somewhere...\n";
1156 } elsif ($self->ra->trees_match($new_url, $r0,
1157 $self->full_url, $rev)) {
1158 print STDERR "Trees match:\n",
1160 " ${\$self->full_url}\@$rev\n",
1161 "Following parent with no changes\n"
1163 $self->tmp_index_do(sub {
1164 command_noisy('read-tree', $parent);
1166 $self->{last_commit} = $parent;
1168 print STDERR "Following parent with do_update\n"
1170 $ed = Git::SVN::Fetcher->new($self);
1171 $self->ra->gs_do_update($rev, $rev, $self, $ed)
1172 or die "SVN connection failed somewhere...\n";
1174 print STDERR "Successfully followed parent\n" unless $::_q > 1;
1175 return $self->make_log_entry($rev, [$parent], $ed);
1181 my ($self, $paths, $rev) = @_;
1183 my ($last_rev, @parents);
1184 if (my $lc = $self->last_commit) {
1185 # we can have a branch that was deleted, then re-added
1186 # under the same name but copied from another path, in
1187 # which case we'll have multiple parents (we don't
1188 # want to break the original ref, nor lose copypath info):
1189 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1190 push @{$log_entry->{parents}}, $lc;
1193 $ed = Git::SVN::Fetcher->new($self);
1194 $last_rev = $self->{last_rev};
1199 if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
1202 $ed = Git::SVN::Fetcher->new($self);
1204 unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
1205 die "SVN connection failed somewhere...\n";
1207 $self->make_log_entry($rev, \@parents, $ed);
1211 my ($self, $r) = @_;
1214 my ($r, $empty_dirs, $line) = @_;
1215 if (defined $r && $line =~ /^r(\d+)$/) {
1216 return 0 if $1 > $r;
1217 } elsif ($line =~ /^ \+empty_dir: (.+)$/) {
1218 $empty_dirs->{$1} = 1;
1219 } elsif ($line =~ /^ \-empty_dir: (.+)$/) {
1220 my @d = grep {m[^\Q$1\E(/|$)]} (keys %$empty_dirs);
1221 delete @$empty_dirs{@d};
1226 my %empty_dirs = ();
1227 my $gz_file = "$self->{dir}/unhandled.log.gz";
1229 if (!can_compress()) {
1230 warn "Compress::Zlib could not be found; ",
1231 "empty directories in $gz_file will not be read\n";
1233 my $gz = Compress::Zlib::gzopen($gz_file, "rb") or
1234 die "Unable to open $gz_file: $!\n";
1236 while ($gz->gzreadline($line) > 0) {
1237 scan($r, \%empty_dirs, $line) or last;
1243 if (open my $fh, '<', "$self->{dir}/unhandled.log") {
1244 binmode $fh or croak "binmode: $!";
1246 scan($r, \%empty_dirs, $_) or last;
1251 my $strip = qr/\A\Q@{[$self->path]}\E(?:\/|$)/;
1252 foreach my $d (sort keys %empty_dirs) {
1253 $d = uri_decode($d);
1255 next unless length($d);
1258 warn "$d exists but is not a directory\n";
1260 print "creating empty directory: $d\n";
1267 my ($self, $ed) = @_;
1269 my $h = $ed->{empty};
1270 foreach (sort keys %$h) {
1271 my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
1272 push @out, " $act: " . uri_encode($_);
1273 warn "W: $act: $_\n";
1275 foreach my $t (qw/dir_prop file_prop/) {
1276 $h = $ed->{$t} or next;
1277 foreach my $path (sort keys %$h) {
1278 my $ppath = $path eq '' ? '.' : $path;
1279 foreach my $prop (sort keys %{$h->{$path}}) {
1280 next if $SKIP_PROP{$prop};
1281 my $v = $h->{$path}->{$prop};
1282 my $t_ppath_prop = "$t: " .
1283 uri_encode($ppath) . ' ' .
1286 push @out, " +$t_ppath_prop " .
1289 push @out, " -$t_ppath_prop";
1294 foreach my $t (qw/absent_file absent_directory/) {
1295 $h = $ed->{$t} or next;
1296 foreach my $parent (sort keys %$h) {
1297 foreach my $path (sort @{$h->{$parent}}) {
1298 push @out, " $t: " .
1299 uri_encode("$parent/$path");
1300 warn "W: $t: $parent/$path ",
1301 "Insufficient permissions?\n";
1309 # some systmes don't handle or mishandle %z, so be creative.
1310 my $t = shift || time;
1311 my $gm = timelocal(gmtime($t));
1312 my $sign = qw( + + - )[ $t <=> $gm ];
1313 return sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
1316 # parse_svn_date(DATE)
1317 # --------------------
1318 # Given a date (in UTC) from Subversion, return a string in the format
1319 # "<TZ Offset> <local date/time>" that Git will use.
1321 # By default the parsed date will be in UTC; if $Git::SVN::_localtime
1322 # is true we'll convert it to the local timezone instead.
1323 sub parse_svn_date {
1324 my $date = shift || return '+0000 1970-01-01 00:00:00';
1325 my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
1326 (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
1327 croak "Unable to parse date: $date\n";
1328 my $parsed_date; # Set next.
1330 if ($Git::SVN::_localtime) {
1331 # Translate the Subversion datetime to an epoch time.
1332 # Begin by switching ourselves to $date's timezone, UTC.
1333 my $old_env_TZ = $ENV{TZ};
1337 POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
1339 # Determine our local timezone (including DST) at the
1340 # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
1341 # value of TZ, if any, at the time we were run.
1342 if (defined $Git::SVN::Log::TZ) {
1343 $ENV{TZ} = $Git::SVN::Log::TZ;
1348 my $our_TZ = get_tz();
1350 # This converts $epoch_in_UTC into our local timezone.
1351 my ($sec, $min, $hour, $mday, $mon, $year,
1352 $wday, $yday, $isdst) = localtime($epoch_in_UTC);
1354 $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
1355 $our_TZ, $year + 1900, $mon + 1,
1356 $mday, $hour, $min, $sec);
1358 # Reset us to the timezone in effect when we entered
1360 if (defined $old_env_TZ) {
1361 $ENV{TZ} = $old_env_TZ;
1366 $parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
1369 return $parsed_date;
1373 my ($self, $new_url, $url,
1374 $branch_from, $r, $old_ref_id) = @_;
1375 my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
1377 my $ref_id = $old_ref_id;
1378 $ref_id =~ s/\@\d+-*$//;
1380 # just grow a tail if we're not unique enough :x
1381 $ref_id .= '-' while find_ref($ref_id);
1382 my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
1383 if ($u =~ s#^\Q$url\E(/|$)##) {
1386 $repo_id = $self->{repo_id};
1389 # It is possible to tag two different subdirectories at
1390 # the same revision. If the url for an existing ref
1391 # does not match, we must either find a ref with a
1392 # matching url or create a new ref by growing a tail.
1393 $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
1394 my (undef, $max_commit) = $gs->rev_map_max(1);
1395 last if (!$max_commit);
1396 my ($url) = ::cmt_metadata($max_commit);
1397 last if ($url eq $gs->metadata_url);
1400 print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
1405 sub call_authors_prog {
1406 my ($orig_author) = @_;
1407 $orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author);
1408 my $author = `$::_authors_prog $orig_author`;
1410 die "$::_authors_prog failed with exit code $?\n"
1412 if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) {
1413 my ($name, $email) = ($1, $2);
1414 $email = undef if length $2 == 0;
1415 return [$name, $email];
1417 die "Author: $orig_author: $::_authors_prog returned "
1418 . "invalid author format: $author\n";
1424 if (!defined $author || length $author == 0) {
1425 $author = '(no author)';
1427 if (!defined $::users{$author}) {
1428 if (defined $::_authors_prog) {
1429 $::users{$author} = call_authors_prog($author);
1430 } elsif (defined $::_authors) {
1431 die "Author: $author not defined in $::_authors file\n";
1437 sub find_extra_svk_parents {
1438 my ($self, $ed, $tickets, $parents) = @_;
1439 # aha! svk:merge property changed...
1440 my @tickets = split "\n", $tickets;
1442 for my $ticket ( @tickets ) {
1443 my ($uuid, $path, $rev) = split /:/, $ticket;
1444 if ( $uuid eq $self->ra_uuid ) {
1445 my $repos_root = $self->url;
1446 my $branch_from = $path;
1447 $branch_from =~ s{^/}{};
1448 my $gs = $self->other_gs(add_path_to_url( $repos_root, $branch_from ),
1453 if ( my $commit = $gs->rev_map_get($rev, $uuid) ) {
1454 # wahey! we found it, but it might be
1456 push @known_parents, [ $rev, $commit ];
1460 # Ordering matters; highest-numbered commit merge tickets
1461 # first, as they may account for later merge ticket additions
1463 @known_parents = map {$_->[1]} sort {$b->[0] <=> $a->[0]} @known_parents;
1464 for my $parent ( @known_parents ) {
1465 my @cmd = ('rev-list', $parent, map { "^$_" } @$parents );
1466 my ($msg_fh, $ctx) = command_output_pipe(@cmd);
1468 while ( <$msg_fh> ) {
1471 command_close_pipe($msg_fh, $ctx);
1474 "Found merge parent (svk:merge ticket): $parent\n";
1475 push @$parents, $parent;
1480 sub lookup_svn_merge {
1485 my ($source, $revs) = split ":", $merge;
1488 my $gs = Git::SVN->find_by_url($url.$source, $url, $path);
1490 warn "Couldn't find revmap for $url$source\n";
1493 my @ranges = split ",", $revs;
1494 my ($tip, $tip_commit);
1495 my @merged_commit_ranges;
1497 for my $range ( @ranges ) {
1498 my ($bottom, $top) = split "-", $range;
1500 my $bottom_commit = $gs->find_rev_after( $bottom, 1, $top );
1501 my $top_commit = $gs->find_rev_before( $top, 1, $bottom );
1503 unless ($top_commit and $bottom_commit) {
1504 warn "W:unknown path/rev in svn:mergeinfo "
1505 ."dirprop: $source:$range\n";
1509 if (scalar(command('rev-parse', "$bottom_commit^@"))) {
1510 push @merged_commit_ranges,
1511 "$bottom_commit^..$top_commit";
1513 push @merged_commit_ranges, "$top_commit";
1516 if ( !defined $tip or $top > $tip ) {
1518 $tip_commit = $top_commit;
1521 return ($tip_commit, @merged_commit_ranges);
1525 my ($msg_fh, $ctx) = command_output_pipe(
1529 while ( <$msg_fh> ) {
1533 command_close_pipe($msg_fh, $ctx);
1537 sub check_cherry_pick {
1540 my $parents = shift;
1542 my %commits = map { $_ => 1 }
1543 _rev_list("--no-merges", $tip, "--not", $base, @$parents, "--");
1544 for my $range ( @ranges ) {
1545 delete @commits{_rev_list($range, "--")};
1547 for my $commit (keys %commits) {
1548 if (has_no_changes($commit)) {
1549 delete $commits{$commit};
1552 return (keys %commits);
1555 sub has_no_changes {
1558 my @revs = split / /, command_oneline(
1559 qw(rev-list --parents -1 -m), $commit);
1561 # Commits with no parents, e.g. the start of a partial branch,
1562 # have changes by definition.
1563 return 1 if (@revs < 2);
1565 # Commits with multiple parents, e.g a merge, have no changes
1567 return 0 if (@revs > 2);
1569 return (command_oneline("rev-parse", "$commit^{tree}") eq
1570 command_oneline("rev-parse", "$commit~1^{tree}"));
1573 sub tie_for_persistent_memoization {
1577 if ($can_use_yaml) {
1578 tie %$hash => 'Git::SVN::Memoize::YAML', "$path.yaml";
1580 tie %$hash => 'Memoize::Storable', "$path.db", 'nstore';
1584 # The GIT_DIR environment variable is not always set until after the command
1585 # line arguments are processed, so we can't memoize in a BEGIN block.
1589 sub memoize_svn_mergeinfo_functions {
1590 return if $memoized;
1593 my $cache_path = "$ENV{GIT_DIR}/svn/.caches/";
1594 mkpath([$cache_path]) unless -d $cache_path;
1596 my %lookup_svn_merge_cache;
1597 my %check_cherry_pick_cache;
1598 my %has_no_changes_cache;
1600 tie_for_persistent_memoization(\%lookup_svn_merge_cache,
1601 "$cache_path/lookup_svn_merge");
1602 memoize 'lookup_svn_merge',
1603 SCALAR_CACHE => 'FAULT',
1604 LIST_CACHE => ['HASH' => \%lookup_svn_merge_cache],
1607 tie_for_persistent_memoization(\%check_cherry_pick_cache,
1608 "$cache_path/check_cherry_pick");
1609 memoize 'check_cherry_pick',
1610 SCALAR_CACHE => 'FAULT',
1611 LIST_CACHE => ['HASH' => \%check_cherry_pick_cache],
1614 tie_for_persistent_memoization(\%has_no_changes_cache,
1615 "$cache_path/has_no_changes");
1616 memoize 'has_no_changes',
1617 SCALAR_CACHE => ['HASH' => \%has_no_changes_cache],
1618 LIST_CACHE => 'FAULT',
1622 sub unmemoize_svn_mergeinfo_functions {
1623 return if not $memoized;
1626 Memoize::unmemoize 'lookup_svn_merge';
1627 Memoize::unmemoize 'check_cherry_pick';
1628 Memoize::unmemoize 'has_no_changes';
1631 Memoize::memoize 'Git::SVN::repos_root';
1635 # Force cache writeout explicitly instead of waiting for
1636 # global destruction to avoid segfault in Storable:
1637 # http://rt.cpan.org/Public/Bug/Display.html?id=36087
1638 unmemoize_svn_mergeinfo_functions();
1641 sub parents_exclude {
1642 my $parents = shift;
1644 return unless @commits;
1649 my @cmd = ('rev-list', "-1", @commits, "--not", @$parents );
1650 $excluded = command_oneline(@cmd);
1654 for my $commit ( @commits ) {
1655 if ( $commit eq $excluded ) {
1656 push @excluded, $commit;
1664 die "saw commit '$excluded' in rev-list output, "
1665 ."but we didn't ask for that commit (wanted: @commits --not @$parents)"
1670 while ($excluded and @commits);
1676 # note: this function should only be called if the various dirprops
1677 # have actually changed
1678 sub find_extra_svn_parents {
1679 my ($self, $ed, $mergeinfo, $parents) = @_;
1680 # aha! svk:merge property changed...
1682 memoize_svn_mergeinfo_functions();
1684 # We first search for merged tips which are not in our
1685 # history. Then, we figure out which git revisions are in
1686 # that tip, but not this revision. If all of those revisions
1687 # are now marked as merge, we can add the tip as a parent.
1688 my @merges = split "\n", $mergeinfo;
1690 my $url = $self->url;
1691 my $uuid = $self->ra_uuid;
1693 for my $merge ( @merges ) {
1694 my ($tip_commit, @ranges) =
1695 lookup_svn_merge( $uuid, $url, $merge );
1696 unless (!$tip_commit or
1697 grep { $_ eq $tip_commit } @$parents ) {
1698 push @merge_tips, $tip_commit;
1699 $ranges{$tip_commit} = \@ranges;
1701 push @merge_tips, undef;
1705 my %excluded = map { $_ => 1 }
1706 parents_exclude($parents, grep { defined } @merge_tips);
1708 # check merge tips for new parents
1710 for my $merge_tip ( @merge_tips ) {
1711 my $spec = shift @merges;
1712 next unless $merge_tip and $excluded{$merge_tip};
1714 my $ranges = $ranges{$merge_tip};
1716 # check out 'new' tips
1719 $merge_base = command_oneline(
1721 @$parents, $merge_tip,
1725 die "An error occurred during merge-base"
1726 unless $@->isa("Git::Error::Command");
1728 warn "W: Cannot find common ancestor between ".
1729 "@$parents and $merge_tip. Ignoring merge info.\n";
1733 # double check that there are no missing non-merge commits
1734 my (@incomplete) = check_cherry_pick(
1735 $merge_base, $merge_tip,
1740 if ( @incomplete ) {
1741 warn "W:svn cherry-pick ignored ($spec) - missing "
1742 .@incomplete." commit(s) (eg $incomplete[0])\n";
1745 "Found merge parent (svn:mergeinfo prop): ",
1747 push @new_parents, $merge_tip;
1751 # cater for merges which merge commits from multiple branches
1752 if ( @new_parents > 1 ) {
1753 for ( my $i = 0; $i <= $#new_parents; $i++ ) {
1754 for ( my $j = 0; $j <= $#new_parents; $j++ ) {
1756 next unless $new_parents[$i];
1757 next unless $new_parents[$j];
1758 my $revs = command_oneline(
1760 "$new_parents[$i]..$new_parents[$j]",
1763 undef($new_parents[$j]);
1768 push @$parents, grep { defined } @new_parents;
1771 sub make_log_entry {
1772 my ($self, $rev, $parents, $ed) = @_;
1773 my $untracked = $self->get_untracked($ed);
1775 my @parents = @$parents;
1776 my $ps = $ed->{path_strip} || "";
1777 for my $path ( grep { m/$ps/ } %{$ed->{dir_prop}} ) {
1778 my $props = $ed->{dir_prop}{$path};
1779 if ( $props->{"svk:merge"} ) {
1780 $self->find_extra_svk_parents
1781 ($ed, $props->{"svk:merge"}, \@parents);
1783 if ( $props->{"svn:mergeinfo"} ) {
1784 $self->find_extra_svn_parents
1786 $props->{"svn:mergeinfo"},
1791 open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
1792 print $un "r$rev\n" or croak $!;
1793 print $un $_, "\n" foreach @$untracked;
1794 my %log_entry = ( parents => \@parents, revision => $rev,
1798 my $logged = delete $self->{logged_rev_props};
1799 if (!$logged || $self->{-want_revprops}) {
1800 my $rp = $self->ra->rev_proplist($rev);
1801 foreach (sort keys %$rp) {
1803 if (/^svn:(author|date|log)$/) {
1804 $log_entry{$1} = $v;
1805 } elsif ($_ eq 'svm:headrev') {
1808 print $un " rev_prop: ", uri_encode($_), ' ',
1809 uri_encode($v), "\n";
1813 map { $log_entry{$_} = $logged->{$_} } keys %$logged;
1815 close $un or croak $!;
1817 $log_entry{date} = parse_svn_date($log_entry{date});
1818 $log_entry{log} .= "\n";
1819 my $author = $log_entry{author} = check_author($log_entry{author});
1820 my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
1823 my ($commit_name, $commit_email) = ($name, $email);
1824 if ($_use_log_author) {
1826 if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
1828 } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
1831 if (!defined $name_field) {
1832 if (!defined $email) {
1835 } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
1836 ($name, $email) = ($1, $2);
1837 } elsif ($name_field =~ /(.*)@/) {
1838 ($name, $email) = ($1, $name_field);
1840 ($name, $email) = ($name_field, $name_field);
1843 if (defined $headrev && $self->use_svm_props) {
1844 if ($self->rewrite_root) {
1845 die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
1848 if ($self->rewrite_uuid) {
1849 die "Can't have both 'useSvmProps' and 'rewriteUUID' ",
1852 my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i;
1853 # we don't want "SVM: initializing mirror for junk" ...
1854 return undef if $r == 0;
1855 my $svm = $self->svm;
1856 if ($uuid ne $svm->{uuid}) {
1857 die "UUID mismatch on SVM path:\n",
1858 "expected: $svm->{uuid}\n",
1861 my $full_url = $self->full_url;
1862 $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
1863 die "Failed to replace '$svm->{replace}' with ",
1864 "'$svm->{source}' in $full_url\n";
1865 # throw away username for storing in records
1866 remove_username($full_url);
1867 $log_entry{metadata} = "$full_url\@$r $uuid";
1868 $log_entry{svm_revision} = $r;
1869 $email ||= "$author\@$uuid";
1870 $commit_email ||= "$author\@$uuid";
1871 } elsif ($self->use_svnsync_props) {
1872 my $full_url = add_path_to_url( $self->svnsync->{url}, $self->path );
1873 remove_username($full_url);
1874 my $uuid = $self->svnsync->{uuid};
1875 $log_entry{metadata} = "$full_url\@$rev $uuid";
1876 $email ||= "$author\@$uuid";
1877 $commit_email ||= "$author\@$uuid";
1879 my $url = $self->metadata_url;
1880 remove_username($url);
1881 my $uuid = $self->rewrite_uuid || $self->ra->get_uuid;
1882 $log_entry{metadata} = "$url\@$rev " . $uuid;
1883 $email ||= "$author\@" . $uuid;
1884 $commit_email ||= "$author\@" . $uuid;
1886 $log_entry{name} = $name;
1887 $log_entry{email} = $email;
1888 $log_entry{commit_name} = $commit_name;
1889 $log_entry{commit_email} = $commit_email;
1894 my ($self, $min_rev, $max_rev, @parents) = @_;
1895 my ($last_rev, $last_commit) = $self->last_rev_commit;
1896 my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
1897 $self->ra->gs_fetch_loop_common($base, $head, [$self]);
1901 my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
1902 $self->{inject_parents} = { $rev => $tree };
1903 $self->fetch(undef, undef);
1907 my ($self, $tree) = (shift, shift);
1908 my $log_entry = ::get_commit_entry($tree);
1909 unless ($self->{last_rev}) {
1910 fatal("Must have an existing revision to commit");
1912 my %ed_opts = ( r => $self->{last_rev},
1913 log => $log_entry->{log},
1915 tree_a => $self->{last_commit},
1918 $self->set_tree_cb($log_entry, $tree, @_) },
1919 svn_path => $self->path );
1920 if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
1921 print "No changes\nr$self->{last_rev} = $tree\n";
1925 sub rebuild_from_rev_db {
1926 my ($self, $path) = @_;
1928 open my $fh, '<', $path or croak "open: $!";
1929 binmode $fh or croak "binmode: $!";
1931 length($_) == 41 or croak "inconsistent size in ($_) != 41";
1934 next if $_ eq ('0' x 40);
1935 $self->rev_map_set($r, $_);
1938 close $fh or croak "close: $!";
1939 unlink $path or croak "unlink: $!";
1944 my $map_path = $self->map_path;
1945 my $partial = (-e $map_path && ! -z $map_path);
1946 return unless ::verify_ref($self->refname.'^0');
1947 if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
1948 my $rev_db = $self->rev_db_path;
1949 $self->rebuild_from_rev_db($rev_db);
1950 if ($self->use_svm_props) {
1951 my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
1952 $self->rebuild_from_rev_db($svm_rev_db);
1954 $self->unlink_rev_db_symlink;
1957 print "Rebuilding $map_path ...\n" if (!$partial);
1958 my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
1961 command_output_pipe(qw/rev-list --pretty=raw --reverse/,
1962 ($head ? "$head.." : "") . $self->refname,
1964 my $metadata_url = $self->metadata_url;
1965 remove_username($metadata_url);
1966 my $svn_uuid = $self->rewrite_uuid || $self->ra_uuid;
1969 if ( m{^commit ($::sha1)$} ) {
1973 next unless s{^\s*(git-svn-id:)}{$1};
1974 my ($url, $rev, $uuid) = ::extract_metadata($_);
1975 remove_username($url);
1977 # ignore merges (from set-tree)
1978 next if (!defined $rev || !$uuid);
1980 # if we merged or otherwise started elsewhere, this is
1981 # how we break out of it
1982 if (($uuid ne $svn_uuid) ||
1983 ($metadata_url && $url && ($url ne $metadata_url))) {
1986 if ($partial && $head) {
1987 print "Partial-rebuilding $map_path ...\n";
1988 print "Currently at $base_rev = $head\n";
1992 $self->rev_map_set($rev, $c);
1993 print "r$rev = $c\n";
1995 command_close_pipe($log, $ctx);
1996 print "Done rebuilding $map_path\n" if (!$partial || !$head);
1997 my $rev_db_path = $self->rev_db_path;
1998 if (-f $self->rev_db_path) {
1999 unlink $self->rev_db_path or croak "unlink: $!";
2001 $self->unlink_rev_db_symlink;
2005 # Tie::File seems to be prone to offset errors if revisions get sparse,
2006 # it's not that fast, either. Tie::File is also not in Perl 5.6. So
2007 # one of my favorite modules is out :< Next up would be one of the DBM
2008 # modules, but I'm not sure which is most portable...
2010 # This is the replacement for the rev_db format, which was too big
2011 # and inefficient for large repositories with a lot of sparse history
2014 # The format is this:
2015 # - 24 bytes for every record,
2016 # * 4 bytes for the integer representing an SVN revision number
2017 # * 20 bytes representing the sha1 of a git commit
2018 # - No empty padding records like the old format
2019 # (except the last record, which can be overwritten)
2020 # - new records are written append-only since SVN revision numbers
2021 # increase monotonically
2022 # - lookups on SVN revision number are done via a binary search
2023 # - Piping the file to xxd -c24 is a good way of dumping it for
2024 # viewing or editing (piped back through xxd -r), should the need
2026 # - The last record can be padding revision with an all-zero sha1
2027 # This is used to optimize fetch performance when using multiple
2028 # "fetch" directives in .git/config
2030 # These files are disposable unless noMetadata or useSvmProps is set
2033 my ($fh, $rev, $commit) = @_;
2035 binmode $fh or croak "binmode: $!";
2036 my $size = (stat($fh))[7];
2037 ($size % 24) == 0 or croak "inconsistent size: $size";
2041 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2042 my $read = sysread($fh, my $buf, 24) or croak "read: $!";
2043 $read == 24 or croak "read only $read bytes (!= 24)";
2044 my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
2045 if ($last_commit eq ('0' x40)) {
2047 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2048 $read = sysread($fh, $buf, 24) or
2051 croak "read only $read bytes (!= 24)";
2052 ($last_rev, $last_commit) =
2053 unpack(rev_map_fmt, $buf);
2054 if ($last_commit eq ('0' x40)) {
2055 croak "inconsistent .rev_map\n";
2058 if ($last_rev >= $rev) {
2059 croak "last_rev is higher!: $last_rev >= $rev";
2064 sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
2065 syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
2069 sub _rev_map_reset {
2070 my ($fh, $rev, $commit) = @_;
2071 my $c = _rev_map_get($fh, $rev);
2072 $c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n";
2073 my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!";
2074 truncate $fh, $offset or croak "truncate: $!";
2080 my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
2081 mkpath([$dir]) unless -d $dir;
2082 open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
2083 close $fh or die "Couldn't close (create) $path: $!\n";
2088 my ($self, $rev, $commit, $update_ref, $uuid) = @_;
2089 defined $commit or die "missing arg3\n";
2090 length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
2091 my $db = $self->map_path($uuid);
2092 my $db_lock = "$db.lock";
2096 $sigmask = POSIX::SigSet->new();
2097 my $signew = POSIX::SigSet->new(SIGINT, SIGHUP, SIGTERM,
2098 SIGALRM, SIGUSR1, SIGUSR2);
2099 sigprocmask(SIG_BLOCK, $signew, $sigmask) or
2100 croak "Can't block signals: $!";
2104 $LOCKFILES{$db_lock} = 1;
2106 # both of these options make our .rev_db file very, very important
2107 # and we can't afford to lose it because rebuild() won't work
2108 if ($self->use_svm_props || $self->no_metadata) {
2110 copy($db, $db_lock) or die "rev_map_set(@_): ",
2112 "$db => $db_lock ($!)\n";
2114 rename $db, $db_lock or die "rev_map_set(@_): ",
2115 "Failed to rename: ",
2116 "$db => $db_lock ($!)\n";
2119 sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
2120 or croak "Couldn't open $db_lock: $!\n";
2121 $update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) :
2122 _rev_map_set($fh, $rev, $commit);
2124 $fh->flush or die "Couldn't flush $db_lock: $!\n";
2125 $fh->sync or die "Couldn't sync $db_lock: $!\n";
2127 close $fh or croak $!;
2131 $note = " ($update_ref)" if ($update_ref !~ /^\d*$/);
2132 command_noisy('update-ref', '-m', "r$rev$note",
2133 $self->refname, $commit);
2135 rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
2136 "$db_lock => $db ($!)\n";
2137 delete $LOCKFILES{$db_lock};
2139 sigprocmask(SIG_SETMASK, $sigmask) or
2140 croak "Can't restore signal mask: $!";
2144 # If want_commit, this will return an array of (rev, commit) where
2145 # commit _must_ be a valid commit in the archive.
2146 # Otherwise, it'll return the max revision (whether or not the
2147 # commit is valid or just a 0x40 placeholder).
2149 my ($self, $want_commit) = @_;
2151 my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
2152 $want_commit ? ($r, $c) : $r;
2155 sub rev_map_max_norebuild {
2156 my ($self, $want_commit) = @_;
2157 my $map_path = $self->map_path;
2158 stat $map_path or return $want_commit ? (0, undef) : 0;
2159 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2160 binmode $fh or croak "binmode: $!";
2161 my $size = (stat($fh))[7];
2162 ($size % 24) == 0 or croak "inconsistent size: $size";
2165 close $fh or croak "close: $!";
2166 return $want_commit ? (0, undef) : 0;
2169 sysseek($fh, -24, SEEK_END) or croak "seek: $!";
2170 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2171 my ($r, $c) = unpack(rev_map_fmt, $buf);
2172 if ($want_commit && $c eq ('0' x40)) {
2174 return $want_commit ? (0, undef) : 0;
2176 sysseek($fh, -48, SEEK_END) or croak "seek: $!";
2177 sysread($fh, $buf, 24) == 24 or croak "read: $!";
2178 ($r, $c) = unpack(rev_map_fmt, $buf);
2179 if ($c eq ('0'x40)) {
2180 croak "Penultimate record is all-zeroes in $map_path";
2183 close $fh or croak "close: $!";
2184 $want_commit ? ($r, $c) : $r;
2188 my ($self, $rev, $uuid) = @_;
2189 my $map_path = $self->map_path($uuid);
2190 return undef unless -e $map_path;
2192 sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
2193 my $c = _rev_map_get($fh, $rev);
2194 close($fh) or croak "close: $!";
2199 my ($fh, $rev) = @_;
2201 binmode $fh or croak "binmode: $!";
2202 my $size = (stat($fh))[7];
2203 ($size % 24) == 0 or croak "inconsistent size: $size";
2209 my ($l, $u) = (0, $size - 24);
2213 my $i = int(($l/24 + $u/24) / 2) * 24;
2214 sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
2215 sysread($fh, my $buf, 24) == 24 or croak "read: $!";
2216 my ($r, $c) = unpack(rev_map_fmt, $buf);
2220 } elsif ($r > $rev) {
2222 } else { # $r == $rev
2223 return $c eq ('0' x 40) ? undef : $c;
2229 # Finds the first svn revision that exists on (if $eq_ok is true) or
2230 # before $rev for the current branch. It will not search any lower
2231 # than $min_rev. Returns the git commit hash and svn revision number
2232 # if found, else (undef, undef).
2233 sub find_rev_before {
2234 my ($self, $rev, $eq_ok, $min_rev) = @_;
2235 --$rev unless $eq_ok;
2237 my $max_rev = $self->rev_map_max;
2238 $rev = $max_rev if ($rev > $max_rev);
2239 while ($rev >= $min_rev) {
2240 if (my $c = $self->rev_map_get($rev)) {
2245 return (undef, undef);
2248 # Finds the first svn revision that exists on (if $eq_ok is true) or
2249 # after $rev for the current branch. It will not search any higher
2250 # than $max_rev. Returns the git commit hash and svn revision number
2251 # if found, else (undef, undef).
2252 sub find_rev_after {
2253 my ($self, $rev, $eq_ok, $max_rev) = @_;
2254 ++$rev unless $eq_ok;
2255 $max_rev ||= $self->rev_map_max;
2256 while ($rev <= $max_rev) {
2257 if (my $c = $self->rev_map_get($rev)) {
2262 return (undef, undef);
2266 my ($class, $repo_id, $ref_id, $path) = @_;
2267 unless (defined $repo_id && length $repo_id) {
2268 $repo_id = $default_repo_id;
2270 unless (defined $ref_id && length $ref_id) {
2271 # Access the prefix option from the git-svn main program if it's loaded.
2272 my $prefix = defined &::opt_prefix ? ::opt_prefix() : "";
2274 "refs/remotes/$prefix$default_ref_id";
2277 my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
2279 # Older repos imported by us used $GIT_DIR/svn/foo instead of
2280 # $GIT_DIR/svn/refs/remotes/foo when tracking refs/remotes/foo
2281 if ($ref_id =~ m{^refs/remotes/(.*)}) {
2282 my $old_dir = "$ENV{GIT_DIR}/svn/$1";
2283 if (-d $old_dir && ! -d $dir) {
2288 $_[3] = $path = '' unless (defined $path);
2291 ref_id => $ref_id, dir => $dir, index => "$dir/index",
2292 config => "$ENV{GIT_DIR}/svn/config",
2293 map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
2295 # Ensure it gets canonicalized
2306 $self->{path} = canonicalize_path($path);
2310 return $self->{path};
2318 $self->{url} = canonicalize_url($url);
2322 return $self->{url};
2325 # for read-only access of old .rev_db formats
2326 sub unlink_rev_db_symlink {
2328 my $link = $self->rev_db_path;
2329 $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
2331 unlink $link or croak "unlink: $link failed!";
2336 my ($self, $uuid) = @_;
2337 my $db_path = $self->map_path($uuid);
2338 $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
2339 or croak "map_path: $db_path does not contain '/.rev_map.' !";
2343 # the new replacement for .rev_db
2345 my ($self, $uuid) = @_;
2346 $uuid ||= $self->ra_uuid;
2347 "$self->{map_root}.$uuid";
2352 $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
2358 $f =~ s#%([0-9a-fA-F]{2})#chr(hex($1))#eg;
2362 sub remove_username {
2363 $_[0] =~ s{^([^:]*://)[^@]+@}{$1};