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authorMichael G. Schwern <schwern@pobox.com>2012-07-26 23:22:24 (GMT)
committerEric Wong <normalperson@yhbt.net>2012-07-27 22:14:53 (GMT)
commit29499c0b2741cc2ea13b78a342048bad928dfe2a (patch)
tree0224e87fdefbc2a48392e994e5e7d430d5f97b6b
parent0f80aa03cf17973cb15eb34d5efedbd5eba70596 (diff)
downloadgit-29499c0b2741cc2ea13b78a342048bad928dfe2a.zip
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Extract Git::SVN from git-svn into its own .pm file.
Except for adding the 1; at the end, this is a straight copy & paste. Tests still pass, but its doubtful Git::SVN will compile on its own without git-svn being loaded. Next commit will fix that. Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Eric Wong <normalperson@yhbt.net>
-rwxr-xr-xgit-svn.perl2320
-rw-r--r--perl/Git/SVN.pm2319
-rw-r--r--perl/Makefile1
3 files changed, 2321 insertions, 2319 deletions
diff --git a/git-svn.perl b/git-svn.perl
index 2e1eb84..81d034a 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -10,6 +10,7 @@ use vars qw/ $AUTHOR $VERSION
$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
$VERSION = '@@GIT_VERSION@@';
+use Git::SVN;
use Git::SVN::Utils qw(fatal can_compress);
# From which subdir have we been invoked?
@@ -2041,2325 +2042,6 @@ sub gc_directory {
}
}
-{
-package Git::SVN;
-use strict;
-use warnings;
-use Fcntl qw/:DEFAULT :seek/;
-use constant rev_map_fmt => 'NH40';
-use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
- $_repack $_repack_flags $_use_svm_props $_head
- $_use_svnsync_props $no_reuse_existing $_minimize_url
- $_use_log_author $_add_author_from $_localtime/;
-use Carp qw/croak/;
-use File::Path qw/mkpath/;
-use File::Copy qw/copy/;
-use IPC::Open3;
-use Time::Local;
-use Memoize; # core since 5.8.0, Jul 2002
-use Memoize::Storable;
-use POSIX qw(:signal_h);
-
-use Git qw(
- command
- command_oneline
- command_noisy
- command_output_pipe
- command_close_pipe
-);
-use Git::SVN::Utils qw(fatal can_compress);
-
-my $can_use_yaml;
-BEGIN {
- $can_use_yaml = eval { require Git::SVN::Memoize::YAML; 1};
-}
-
-my ($_gc_nr, $_gc_period);
-
-# properties that we do not log:
-my %SKIP_PROP;
-BEGIN {
- %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
- svn:special svn:executable
- svn:entry:committed-rev
- svn:entry:last-author
- svn:entry:uuid
- svn:entry:committed-date/;
-
- # some options are read globally, but can be overridden locally
- # per [svn-remote "..."] section. Command-line options will *NOT*
- # override options set in an [svn-remote "..."] section
- no strict 'refs';
- for my $option (qw/follow_parent no_metadata use_svm_props
- use_svnsync_props/) {
- my $key = $option;
- $key =~ tr/_//d;
- my $prop = "-$option";
- *$option = sub {
- my ($self) = @_;
- return $self->{$prop} if exists $self->{$prop};
- my $k = "svn-remote.$self->{repo_id}.$key";
- eval { command_oneline(qw/config --get/, $k) };
- if ($@) {
- $self->{$prop} = ${"Git::SVN::_$option"};
- } else {
- my $v = command_oneline(qw/config --bool/,$k);
- $self->{$prop} = $v eq 'false' ? 0 : 1;
- }
- return $self->{$prop};
- }
- }
-}
-
-
-my (%LOCKFILES, %INDEX_FILES);
-END {
- unlink keys %LOCKFILES if %LOCKFILES;
- unlink keys %INDEX_FILES if %INDEX_FILES;
-}
-
-sub resolve_local_globs {
- my ($url, $fetch, $glob_spec) = @_;
- return unless defined $glob_spec;
- my $ref = $glob_spec->{ref};
- my $path = $glob_spec->{path};
- foreach (command(qw#for-each-ref --format=%(refname) refs/#)) {
- next unless m#^$ref->{regex}$#;
- my $p = $1;
- my $pathname = desanitize_refname($path->full_path($p));
- my $refname = desanitize_refname($ref->full_path($p));
- if (my $existing = $fetch->{$pathname}) {
- if ($existing ne $refname) {
- die "Refspec conflict:\n",
- "existing: $existing\n",
- " globbed: $refname\n";
- }
- my $u = (::cmt_metadata("$refname"))[0];
- $u =~ s!^\Q$url\E(/|$)!! or die
- "$refname: '$url' not found in '$u'\n";
- if ($pathname ne $u) {
- warn "W: Refspec glob conflict ",
- "(ref: $refname):\n",
- "expected path: $pathname\n",
- " real path: $u\n",
- "Continuing ahead with $u\n";
- next;
- }
- } else {
- $fetch->{$pathname} = $refname;
- }
- }
-}
-
-sub parse_revision_argument {
- my ($base, $head) = @_;
- if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
- return ($base, $head);
- }
- return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
- return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
- return ($head, $head) if ($::_revision eq 'HEAD');
- return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
- return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
- die "revision argument: $::_revision not understood by git-svn\n";
-}
-
-sub fetch_all {
- my ($repo_id, $remotes) = @_;
- if (ref $repo_id) {
- my $gs = $repo_id;
- $repo_id = undef;
- $repo_id = $gs->{repo_id};
- }
- $remotes ||= read_all_remotes();
- my $remote = $remotes->{$repo_id} or
- die "[svn-remote \"$repo_id\"] unknown\n";
- my $fetch = $remote->{fetch};
- my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
- my (@gs, @globs);
- my $ra = Git::SVN::Ra->new($url);
- my $uuid = $ra->get_uuid;
- my $head = $ra->get_latest_revnum;
-
- # ignore errors, $head revision may not even exist anymore
- eval { $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] }) };
- warn "W: $@\n" if $@;
-
- my $base = defined $fetch ? $head : 0;
-
- # read the max revs for wildcard expansion (branches/*, tags/*)
- foreach my $t (qw/branches tags/) {
- defined $remote->{$t} or next;
- push @globs, @{$remote->{$t}};
-
- my $max_rev = eval { tmp_config(qw/--int --get/,
- "svn-remote.$repo_id.${t}-maxRev") };
- if (defined $max_rev && ($max_rev < $base)) {
- $base = $max_rev;
- } elsif (!defined $max_rev) {
- $base = 0;
- }
- }
-
- if ($fetch) {
- foreach my $p (sort keys %$fetch) {
- my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
- my $lr = $gs->rev_map_max;
- if (defined $lr) {
- $base = $lr if ($lr < $base);
- }
- push @gs, $gs;
- }
- }
-
- ($base, $head) = parse_revision_argument($base, $head);
- $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
-}
-
-sub read_all_remotes {
- my $r = {};
- my $use_svm_props = eval { command_oneline(qw/config --bool
- svn.useSvmProps/) };
- $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
- my $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*};
- foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
- if (m!^(.+)\.fetch=$svn_refspec$!) {
- my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
- die("svn-remote.$remote: remote ref '$remote_ref' "
- . "must start with 'refs/'\n")
- unless $remote_ref =~ m{^refs/};
- $local_ref = uri_decode($local_ref);
- $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
- $r->{$remote}->{svm} = {} if $use_svm_props;
- } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
- $r->{$1}->{svm} = {};
- } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
- $r->{$1}->{url} = $2;
- } elsif (m!^(.+)\.pushurl=\s*(.*)\s*$!) {
- $r->{$1}->{pushurl} = $2;
- } elsif (m!^(.+)\.ignore-refs=\s*(.*)\s*$!) {
- $r->{$1}->{ignore_refs_regex} = $2;
- } elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) {
- my ($remote, $t, $local_ref, $remote_ref) =
- ($1, $2, $3, $4);
- die("svn-remote.$remote: remote ref '$remote_ref' ($t) "
- . "must start with 'refs/'\n")
- unless $remote_ref =~ m{^refs/};
- $local_ref = uri_decode($local_ref);
- my $rs = {
- t => $t,
- remote => $remote,
- path => Git::SVN::GlobSpec->new($local_ref, 1),
- ref => Git::SVN::GlobSpec->new($remote_ref, 0) };
- if (length($rs->{ref}->{right}) != 0) {
- die "The '*' glob character must be the last ",
- "character of '$remote_ref'\n";
- }
- push @{ $r->{$remote}->{$t} }, $rs;
- }
- }
-
- map {
- if (defined $r->{$_}->{svm}) {
- my $svm;
- eval {
- my $section = "svn-remote.$_";
- $svm = {
- source => tmp_config('--get',
- "$section.svm-source"),
- replace => tmp_config('--get',
- "$section.svm-replace"),
- }
- };
- $r->{$_}->{svm} = $svm;
- }
- } keys %$r;
-
- foreach my $remote (keys %$r) {
- foreach ( grep { defined $_ }
- map { $r->{$remote}->{$_} } qw(branches tags) ) {
- foreach my $rs ( @$_ ) {
- $rs->{ignore_refs_regex} =
- $r->{$remote}->{ignore_refs_regex};
- }
- }
- }
-
- $r;
-}
-
-sub init_vars {
- $_gc_nr = $_gc_period = 1000;
- if (defined $_repack || defined $_repack_flags) {
- warn "Repack options are obsolete; they have no effect.\n";
- }
-}
-
-sub verify_remotes_sanity {
- return unless -d $ENV{GIT_DIR};
- my %seen;
- foreach (command(qw/config -l/)) {
- if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
- if ($seen{$1}) {
- die "Remote ref refs/remote/$1 is tracked by",
- "\n \"$_\"\nand\n \"$seen{$1}\"\n",
- "Please resolve this ambiguity in ",
- "your git configuration file before ",
- "continuing\n";
- }
- $seen{$1} = $_;
- }
- }
-}
-
-sub find_existing_remote {
- my ($url, $remotes) = @_;
- return undef if $no_reuse_existing;
- my $existing;
- foreach my $repo_id (keys %$remotes) {
- my $u = $remotes->{$repo_id}->{url} or next;
- next if $u ne $url;
- $existing = $repo_id;
- last;
- }
- $existing;
-}
-
-sub init_remote_config {
- my ($self, $url, $no_write) = @_;
- $url =~ s!/+$!!; # strip trailing slash
- my $r = read_all_remotes();
- my $existing = find_existing_remote($url, $r);
- if ($existing) {
- unless ($no_write) {
- print STDERR "Using existing ",
- "[svn-remote \"$existing\"]\n";
- }
- $self->{repo_id} = $existing;
- } elsif ($_minimize_url) {
- my $min_url = Git::SVN::Ra->new($url)->minimize_url;
- $existing = find_existing_remote($min_url, $r);
- if ($existing) {
- unless ($no_write) {
- print STDERR "Using existing ",
- "[svn-remote \"$existing\"]\n";
- }
- $self->{repo_id} = $existing;
- }
- if ($min_url ne $url) {
- unless ($no_write) {
- print STDERR "Using higher level of URL: ",
- "$url => $min_url\n";
- }
- my $old_path = $self->{path};
- $self->{path} = $url;
- $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
- if (length $old_path) {
- $self->{path} .= "/$old_path";
- }
- $url = $min_url;
- }
- }
- my $orig_url;
- if (!$existing) {
- # verify that we aren't overwriting anything:
- $orig_url = eval {
- command_oneline('config', '--get',
- "svn-remote.$self->{repo_id}.url")
- };
- if ($orig_url && ($orig_url ne $url)) {
- die "svn-remote.$self->{repo_id}.url already set: ",
- "$orig_url\nwanted to set to: $url\n";
- }
- }
- my ($xrepo_id, $xpath) = find_ref($self->refname);
- if (!$no_write && defined $xpath) {
- die "svn-remote.$xrepo_id.fetch already set to track ",
- "$xpath:", $self->refname, "\n";
- }
- unless ($no_write) {
- command_noisy('config',
- "svn-remote.$self->{repo_id}.url", $url);
- $self->{path} =~ s{^/}{};
- $self->{path} =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
- command_noisy('config', '--add',
- "svn-remote.$self->{repo_id}.fetch",
- "$self->{path}:".$self->refname);
- }
- $self->{url} = $url;
-}
-
-sub find_by_url { # repos_root and, path are optional
- my ($class, $full_url, $repos_root, $path) = @_;
-
- return undef unless defined $full_url;
- remove_username($full_url);
- remove_username($repos_root) if defined $repos_root;
- my $remotes = read_all_remotes();
- if (defined $full_url && defined $repos_root && !defined $path) {
- $path = $full_url;
- $path =~ s#^\Q$repos_root\E(?:/|$)##;
- }
- foreach my $repo_id (keys %$remotes) {
- my $u = $remotes->{$repo_id}->{url} or next;
- remove_username($u);
- next if defined $repos_root && $repos_root ne $u;
-
- my $fetch = $remotes->{$repo_id}->{fetch} || {};
- foreach my $t (qw/branches tags/) {
- foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) {
- resolve_local_globs($u, $fetch, $globspec);
- }
- }
- my $p = $path;
- my $rwr = rewrite_root({repo_id => $repo_id});
- my $svm = $remotes->{$repo_id}->{svm}
- if defined $remotes->{$repo_id}->{svm};
- unless (defined $p) {
- $p = $full_url;
- my $z = $u;
- my $prefix = '';
- if ($rwr) {
- $z = $rwr;
- remove_username($z);
- } elsif (defined $svm) {
- $z = $svm->{source};
- $prefix = $svm->{replace};
- $prefix =~ s#^\Q$u\E(?:/|$)##;
- $prefix =~ s#/$##;
- }
- $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
- }
- foreach my $f (keys %$fetch) {
- next if $f ne $p;
- return Git::SVN->new($fetch->{$f}, $repo_id, $f);
- }
- }
- undef;
-}
-
-sub init {
- my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
- my $self = _new($class, $repo_id, $ref_id, $path);
- if (defined $url) {
- $self->init_remote_config($url, $no_write);
- }
- $self;
-}
-
-sub find_ref {
- my ($ref_id) = @_;
- foreach (command(qw/config -l/)) {
- next unless m!^svn-remote\.(.+)\.fetch=
- \s*(.*?)\s*:\s*(.+?)\s*$!x;
- my ($repo_id, $path, $ref) = ($1, $2, $3);
- if ($ref eq $ref_id) {
- $path = '' if ($path =~ m#^\./?#);
- return ($repo_id, $path);
- }
- }
- (undef, undef, undef);
-}
-
-sub new {
- my ($class, $ref_id, $repo_id, $path) = @_;
- if (defined $ref_id && !defined $repo_id && !defined $path) {
- ($repo_id, $path) = find_ref($ref_id);
- if (!defined $repo_id) {
- die "Could not find a \"svn-remote.*.fetch\" key ",
- "in the repository configuration matching: ",
- "$ref_id\n";
- }
- }
- my $self = _new($class, $repo_id, $ref_id, $path);
- if (!defined $self->{path} || !length $self->{path}) {
- my $fetch = command_oneline('config', '--get',
- "svn-remote.$repo_id.fetch",
- ":$ref_id\$") or
- die "Failed to read \"svn-remote.$repo_id.fetch\" ",
- "\":$ref_id\$\" in config\n";
- ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
- }
- $self->{path} =~ s{/+}{/}g;
- $self->{path} =~ s{\A/}{};
- $self->{path} =~ s{/\z}{};
- $self->{url} = command_oneline('config', '--get',
- "svn-remote.$repo_id.url") or
- die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
- $self->{pushurl} = eval { command_oneline('config', '--get',
- "svn-remote.$repo_id.pushurl") };
- $self->rebuild;
- $self;
-}
-
-sub refname {
- my ($refname) = $_[0]->{ref_id} ;
-
- # It cannot end with a slash /, we'll throw up on this because
- # SVN can't have directories with a slash in their name, either:
- if ($refname =~ m{/$}) {
- die "ref: '$refname' ends with a trailing slash, this is ",
- "not permitted by git nor Subversion\n";
- }
-
- # It cannot have ASCII control character space, tilde ~, caret ^,
- # colon :, question-mark ?, asterisk *, space, or open bracket [
- # anywhere.
- #
- # Additionally, % must be escaped because it is used for escaping
- # and we want our escaped refname to be reversible
- $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
-
- # no slash-separated component can begin with a dot .
- # /.* becomes /%2E*
- $refname =~ s{/\.}{/%2E}g;
-
- # It cannot have two consecutive dots .. anywhere
- # .. becomes %2E%2E
- $refname =~ s{\.\.}{%2E%2E}g;
-
- # trailing dots and .lock are not allowed
- # .$ becomes %2E and .lock becomes %2Elock
- $refname =~ s{\.(?=$|lock$)}{%2E};
-
- # the sequence @{ is used to access the reflog
- # @{ becomes %40{
- $refname =~ s{\@\{}{%40\{}g;
-
- return $refname;
-}
-
-sub desanitize_refname {
- my ($refname) = @_;
- $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
- return $refname;
-}
-
-sub svm_uuid {
- my ($self) = @_;
- return $self->{svm}->{uuid} if $self->svm;
- $self->ra;
- unless ($self->{svm}) {
- die "SVM UUID not cached, and reading remotely failed\n";
- }
- $self->{svm}->{uuid};
-}
-
-sub svm {
- my ($self) = @_;
- return $self->{svm} if $self->{svm};
- my $svm;
- # see if we have it in our config, first:
- eval {
- my $section = "svn-remote.$self->{repo_id}";
- $svm = {
- source => tmp_config('--get', "$section.svm-source"),
- uuid => tmp_config('--get', "$section.svm-uuid"),
- replace => tmp_config('--get', "$section.svm-replace"),
- }
- };
- if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
- $self->{svm} = $svm;
- }
- $self->{svm};
-}
-
-sub _set_svm_vars {
- my ($self, $ra) = @_;
- return $ra if $self->svm;
-
- my @err = ( "useSvmProps set, but failed to read SVM properties\n",
- "(svm:source, svm:uuid) ",
- "from the following URLs:\n" );
- sub read_svm_props {
- my ($self, $ra, $path, $r) = @_;
- my $props = ($ra->get_dir($path, $r))[2];
- my $src = $props->{'svm:source'};
- my $uuid = $props->{'svm:uuid'};
- return undef if (!$src || !$uuid);
-
- chomp($src, $uuid);
-
- $uuid =~ m{^[0-9a-f\-]{30,}$}i
- or die "doesn't look right - svm:uuid is '$uuid'\n";
-
- # the '!' is used to mark the repos_root!/relative/path
- $src =~ s{/?!/?}{/};
- $src =~ s{/+$}{}; # no trailing slashes please
- # username is of no interest
- $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
-
- my $replace = $ra->{url};
- $replace .= "/$path" if length $path;
-
- my $section = "svn-remote.$self->{repo_id}";
- tmp_config("$section.svm-source", $src);
- tmp_config("$section.svm-replace", $replace);
- tmp_config("$section.svm-uuid", $uuid);
- $self->{svm} = {
- source => $src,
- uuid => $uuid,
- replace => $replace
- };
- }
-
- my $r = $ra->get_latest_revnum;
- my $path = $self->{path};
- my %tried;
- while (length $path) {
- unless ($tried{"$self->{url}/$path"}) {
- return $ra if $self->read_svm_props($ra, $path, $r);
- $tried{"$self->{url}/$path"} = 1;
- }
- $path =~ s#/?[^/]+$##;
- }
- die "Path: '$path' should be ''\n" if $path ne '';
- return $ra if $self->read_svm_props($ra, $path, $r);
- $tried{"$self->{url}/$path"} = 1;
-
- if ($ra->{repos_root} eq $self->{url}) {
- die @err, (map { " $_\n" } keys %tried), "\n";
- }
-
- # nope, make sure we're connected to the repository root:
- my $ok;
- my @tried_b;
- $path = $ra->{svn_path};
- $ra = Git::SVN::Ra->new($ra->{repos_root});
- while (length $path) {
- unless ($tried{"$ra->{url}/$path"}) {
- $ok = $self->read_svm_props($ra, $path, $r);
- last if $ok;
- $tried{"$ra->{url}/$path"} = 1;
- }
- $path =~ s#/?[^/]+$##;
- }
- die "Path: '$path' should be ''\n" if $path ne '';
- $ok ||= $self->read_svm_props($ra, $path, $r);
- $tried{"$ra->{url}/$path"} = 1;
- if (!$ok) {
- die @err, (map { " $_\n" } keys %tried), "\n";
- }
- Git::SVN::Ra->new($self->{url});
-}
-
-sub svnsync {
- my ($self) = @_;
- return $self->{svnsync} if $self->{svnsync};
-
- if ($self->no_metadata) {
- die "Can't have both 'noMetadata' and ",
- "'useSvnsyncProps' options set!\n";
- }
- if ($self->rewrite_root) {
- die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
- "options set!\n";
- }
- if ($self->rewrite_uuid) {
- die "Can't have both 'useSvnsyncProps' and 'rewriteUUID' ",
- "options set!\n";
- }
-
- my $svnsync;
- # see if we have it in our config, first:
- eval {
- my $section = "svn-remote.$self->{repo_id}";
-
- my $url = tmp_config('--get', "$section.svnsync-url");
- ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
- die "doesn't look right - svn:sync-from-url is '$url'\n";
-
- my $uuid = tmp_config('--get', "$section.svnsync-uuid");
- ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
- die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
-
- $svnsync = { url => $url, uuid => $uuid }
- };
- if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
- return $self->{svnsync} = $svnsync;
- }
-
- my $err = "useSvnsyncProps set, but failed to read " .
- "svnsync property: svn:sync-from-";
- my $rp = $self->ra->rev_proplist(0);
-
- my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
- ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
- die "doesn't look right - svn:sync-from-url is '$url'\n";
-
- my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
- ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
- die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
-
- my $section = "svn-remote.$self->{repo_id}";
- tmp_config('--add', "$section.svnsync-uuid", $uuid);
- tmp_config('--add', "$section.svnsync-url", $url);
- return $self->{svnsync} = { url => $url, uuid => $uuid };
-}
-
-# this allows us to memoize our SVN::Ra UUID locally and avoid a
-# remote lookup (useful for 'git svn log').
-sub ra_uuid {
- my ($self) = @_;
- unless ($self->{ra_uuid}) {
- my $key = "svn-remote.$self->{repo_id}.uuid";
- my $uuid = eval { tmp_config('--get', $key) };
- if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
- $self->{ra_uuid} = $uuid;
- } else {
- die "ra_uuid called without URL\n" unless $self->{url};
- $self->{ra_uuid} = $self->ra->get_uuid;
- tmp_config('--add', $key, $self->{ra_uuid});
- }
- }
- $self->{ra_uuid};
-}
-
-sub _set_repos_root {
- my ($self, $repos_root) = @_;
- my $k = "svn-remote.$self->{repo_id}.reposRoot";
- $repos_root ||= $self->ra->{repos_root};
- tmp_config($k, $repos_root);
- $repos_root;
-}
-
-sub repos_root {
- my ($self) = @_;
- my $k = "svn-remote.$self->{repo_id}.reposRoot";
- eval { tmp_config('--get', $k) } || $self->_set_repos_root;
-}
-
-sub ra {
- my ($self) = shift;
- my $ra = Git::SVN::Ra->new($self->{url});
- $self->_set_repos_root($ra->{repos_root});
- if ($self->use_svm_props && !$self->{svm}) {
- if ($self->no_metadata) {
- die "Can't have both 'noMetadata' and ",
- "'useSvmProps' options set!\n";
- } elsif ($self->use_svnsync_props) {
- die "Can't have both 'useSvnsyncProps' and ",
- "'useSvmProps' options set!\n";
- }
- $ra = $self->_set_svm_vars($ra);
- $self->{-want_revprops} = 1;
- }
- $ra;
-}
-
-# prop_walk(PATH, REV, SUB)
-# -------------------------
-# Recursively traverse PATH at revision REV and invoke SUB for each
-# directory that contains a SVN property. SUB will be invoked as
-# follows: &SUB(gs, path, props); where `gs' is this instance of
-# Git::SVN, `path' the path to the directory where the properties
-# `props' were found. The `path' will be relative to point of checkout,
-# that is, if url://repo/trunk is the current Git branch, and that
-# directory contains a sub-directory `d', SUB will be invoked with `/d/'
-# as `path' (note the trailing `/').
-sub prop_walk {
- my ($self, $path, $rev, $sub) = @_;
-
- $path =~ s#^/##;
- my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
- $path =~ s#^/*#/#g;
- my $p = $path;
- # Strip the irrelevant part of the path.
- $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
- # Ensure the path is terminated by a `/'.
- $p =~ s#/*$#/#;
-
- # The properties contain all the internal SVN stuff nobody
- # (usually) cares about.
- my $interesting_props = 0;
- foreach (keys %{$props}) {
- # If it doesn't start with `svn:', it must be a
- # user-defined property.
- ++$interesting_props and next if $_ !~ /^svn:/;
- # FIXME: Fragile, if SVN adds new public properties,
- # this needs to be updated.
- ++$interesting_props if /^svn:(?:ignore|keywords|executable
- |eol-style|mime-type
- |externals|needs-lock)$/x;
- }
- &$sub($self, $p, $props) if $interesting_props;
-
- foreach (sort keys %$dirent) {
- next if $dirent->{$_}->{kind} != $SVN::Node::dir;
- $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
- }
-}
-
-sub last_rev { ($_[0]->last_rev_commit)[0] }
-sub last_commit { ($_[0]->last_rev_commit)[1] }
-
-# returns the newest SVN revision number and newest commit SHA1
-sub last_rev_commit {
- my ($self) = @_;
- if (defined $self->{last_rev} && defined $self->{last_commit}) {
- return ($self->{last_rev}, $self->{last_commit});
- }
- my $c = ::verify_ref($self->refname.'^0');
- if ($c && !$self->use_svm_props && !$self->no_metadata) {
- my $rev = (::cmt_metadata($c))[1];
- if (defined $rev) {
- ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
- return ($rev, $c);
- }
- }
- my $map_path = $self->map_path;
- unless (-e $map_path) {
- ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
- return (undef, undef);
- }
- my ($rev, $commit) = $self->rev_map_max(1);
- ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
- return ($rev, $commit);
-}
-
-sub get_fetch_range {
- my ($self, $min, $max) = @_;
- $max ||= $self->ra->get_latest_revnum;
- $min ||= $self->rev_map_max;
- (++$min, $max);
-}
-
-sub tmp_config {
- my (@args) = @_;
- my $old_def_config = "$ENV{GIT_DIR}/svn/config";
- my $config = "$ENV{GIT_DIR}/svn/.metadata";
- if (! -f $config && -f $old_def_config) {
- rename $old_def_config, $config or
- die "Failed rename $old_def_config => $config: $!\n";
- }
- my $old_config = $ENV{GIT_CONFIG};
- $ENV{GIT_CONFIG} = $config;
- $@ = undef;
- my @ret = eval {
- unless (-f $config) {
- mkfile($config);
- open my $fh, '>', $config or
- die "Can't open $config: $!\n";
- print $fh "; This file is used internally by ",
- "git-svn\n" or die
- "Couldn't write to $config: $!\n";
- print $fh "; You should not have to edit it\n" or
- die "Couldn't write to $config: $!\n";
- close $fh or die "Couldn't close $config: $!\n";
- }
- command('config', @args);
- };
- my $err = $@;
- if (defined $old_config) {
- $ENV{GIT_CONFIG} = $old_config;
- } else {
- delete $ENV{GIT_CONFIG};
- }
- die $err if $err;
- wantarray ? @ret : $ret[0];
-}
-
-sub tmp_index_do {
- my ($self, $sub) = @_;
- my $old_index = $ENV{GIT_INDEX_FILE};
- $ENV{GIT_INDEX_FILE} = $self->{index};
- $@ = undef;
- my @ret = eval {
- my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
- mkpath([$dir]) unless -d $dir;
- &$sub;
- };
- my $err = $@;
- if (defined $old_index) {
- $ENV{GIT_INDEX_FILE} = $old_index;
- } else {
- delete $ENV{GIT_INDEX_FILE};
- }
- die $err if $err;
- wantarray ? @ret : $ret[0];
-}
-
-sub assert_index_clean {
- my ($self, $treeish) = @_;
-
- $self->tmp_index_do(sub {
- command_noisy('read-tree', $treeish) unless -e $self->{index};
- my $x = command_oneline('write-tree');
- my ($y) = (command(qw/cat-file commit/, $treeish) =~
- /^tree ($::sha1)/mo);
- return if $y eq $x;
-
- warn "Index mismatch: $y != $x\nrereading $treeish\n";
- unlink $self->{index} or die "unlink $self->{index}: $!\n";
- command_noisy('read-tree', $treeish);
- $x = command_oneline('write-tree');
- if ($y ne $x) {
- fatal "trees ($treeish) $y != $x\n",
- "Something is seriously wrong...";
- }
- });
-}
-
-sub get_commit_parents {
- my ($self, $log_entry) = @_;
- my (%seen, @ret, @tmp);
- # legacy support for 'set-tree'; this is only used by set_tree_cb:
- if (my $ip = $self->{inject_parents}) {
- if (my $commit = delete $ip->{$log_entry->{revision}}) {
- push @tmp, $commit;
- }
- }
- if (my $cur = ::verify_ref($self->refname.'^0')) {
- push @tmp, $cur;
- }
- if (my $ipd = $self->{inject_parents_dcommit}) {
- if (my $commit = delete $ipd->{$log_entry->{revision}}) {
- push @tmp, @$commit;
- }
- }
- push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
- while (my $p = shift @tmp) {
- next if $seen{$p};
- $seen{$p} = 1;
- push @ret, $p;
- }
- @ret;
-}
-
-sub rewrite_root {
- my ($self) = @_;
- return $self->{-rewrite_root} if exists $self->{-rewrite_root};
- my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
- my $rwr = eval { command_oneline(qw/config --get/, $k) };
- if ($rwr) {
- $rwr =~ s#/+$##;
- if ($rwr !~ m#^[a-z\+]+://#) {
- die "$rwr is not a valid URL (key: $k)\n";
- }
- }
- $self->{-rewrite_root} = $rwr;
-}
-
-sub rewrite_uuid {
- my ($self) = @_;
- return $self->{-rewrite_uuid} if exists $self->{-rewrite_uuid};
- my $k = "svn-remote.$self->{repo_id}.rewriteUUID";
- my $rwid = eval { command_oneline(qw/config --get/, $k) };
- if ($rwid) {
- $rwid =~ s#/+$##;
- if ($rwid !~ m#^[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}$#) {
- die "$rwid is not a valid UUID (key: $k)\n";
- }
- }
- $self->{-rewrite_uuid} = $rwid;
-}
-
-sub metadata_url {
- my ($self) = @_;
- ($self->rewrite_root || $self->{url}) .
- (length $self->{path} ? '/' . $self->{path} : '');
-}
-
-sub full_url {
- my ($self) = @_;
- $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
-}
-
-sub full_pushurl {
- my ($self) = @_;
- if ($self->{pushurl}) {
- return $self->{pushurl} . (length $self->{path} ? '/' .
- $self->{path} : '');
- } else {
- return $self->full_url;
- }
-}
-
-sub set_commit_header_env {
- my ($log_entry) = @_;
- my %env;
- foreach my $ned (qw/NAME EMAIL DATE/) {
- foreach my $ac (qw/AUTHOR COMMITTER/) {
- $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
- }
- }
-
- $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
- $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
- $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
-
- $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
- ? $log_entry->{commit_name}
- : $log_entry->{name};
- $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
- ? $log_entry->{commit_email}
- : $log_entry->{email};
- \%env;
-}
-
-sub restore_commit_header_env {
- my ($env) = @_;
- foreach my $ned (qw/NAME EMAIL DATE/) {
- foreach my $ac (qw/AUTHOR COMMITTER/) {
- my $k = "GIT_${ac}_${ned}";
- if (defined $env->{$k}) {
- $ENV{$k} = $env->{$k};
- } else {
- delete $ENV{$k};
- }
- }
- }
-}
-
-sub gc {
- command_noisy('gc', '--auto');
-};
-
-sub do_git_commit {
- my ($self, $log_entry) = @_;
- my $lr = $self->last_rev;
- if (defined $lr && $lr >= $log_entry->{revision}) {
- die "Last fetched revision of ", $self->refname,
- " was r$lr, but we are about to fetch: ",
- "r$log_entry->{revision}!\n";
- }
- if (my $c = $self->rev_map_get($log_entry->{revision})) {
- croak "$log_entry->{revision} = $c already exists! ",
- "Why are we refetching it?\n";
- }
- my $old_env = set_commit_header_env($log_entry);
- my $tree = $log_entry->{tree};
- if (!defined $tree) {
- $tree = $self->tmp_index_do(sub {
- command_oneline('write-tree') });
- }
- die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
-
- my @exec = ('git', 'commit-tree', $tree);
- foreach ($self->get_commit_parents($log_entry)) {
- push @exec, '-p', $_;
- }
- defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
- or croak $!;
- binmode $msg_fh;
-
- # we always get UTF-8 from SVN, but we may want our commits in
- # a different encoding.
- if (my $enc = Git::config('i18n.commitencoding')) {
- require Encode;
- Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
- }
- print $msg_fh $log_entry->{log} or croak $!;
- restore_commit_header_env($old_env);
- unless ($self->no_metadata) {
- print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
- or croak $!;
- }
- $msg_fh->flush == 0 or croak $!;
- close $msg_fh or croak $!;
- chomp(my $commit = do { local $/; <$out_fh> });
- close $out_fh or croak $!;
- waitpid $pid, 0;
- croak $? if $?;
- if ($commit !~ /^$::sha1$/o) {
- die "Failed to commit, invalid sha1: $commit\n";
- }
-
- $self->rev_map_set($log_entry->{revision}, $commit, 1);
-
- $self->{last_rev} = $log_entry->{revision};
- $self->{last_commit} = $commit;
- print "r$log_entry->{revision}" unless $::_q > 1;
- if (defined $log_entry->{svm_revision}) {
- print " (\@$log_entry->{svm_revision})" unless $::_q > 1;
- $self->rev_map_set($log_entry->{svm_revision}, $commit,
- 0, $self->svm_uuid);
- }
- print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
- if (--$_gc_nr == 0) {
- $_gc_nr = $_gc_period;
- gc();
- }
- return $commit;
-}
-
-sub match_paths {
- my ($self, $paths, $r) = @_;
- return 1 if $self->{path} eq '';
- if (my $path = $paths->{"/$self->{path}"}) {
- return ($path->{action} eq 'D') ? 0 : 1;
- }
- $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
- if (grep /$self->{path_regex}/, keys %$paths) {
- return 1;
- }
- my $c = '';
- foreach (split m#/#, $self->{path}) {
- $c .= "/$_";
- next unless ($paths->{$c} &&
- ($paths->{$c}->{action} =~ /^[AR]$/));
- if ($self->ra->check_path($self->{path}, $r) ==
- $SVN::Node::dir) {
- return 1;
- }
- }
- return 0;
-}
-
-sub find_parent_branch {
- my ($self, $paths, $rev) = @_;
- return undef unless $self->follow_parent;
- unless (defined $paths) {
- my $err_handler = $SVN::Error::handler;
- $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
- $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1,
- sub { $paths = $_[0] });
- $SVN::Error::handler = $err_handler;
- }
- return undef unless defined $paths;
-
- # look for a parent from another branch:
- my @b_path_components = split m#/#, $self->{path};
- my @a_path_components;
- my $i;
- while (@b_path_components) {
- $i = $paths->{'/'.join('/', @b_path_components)};
- last if $i && defined $i->{copyfrom_path};
- unshift(@a_path_components, pop(@b_path_components));
- }
- return undef unless defined $i && defined $i->{copyfrom_path};
- my $branch_from = $i->{copyfrom_path};
- if (@a_path_components) {
- print STDERR "branch_from: $branch_from => ";
- $branch_from .= '/'.join('/', @a_path_components);
- print STDERR $branch_from, "\n";
- }
- my $r = $i->{copyfrom_rev};
- my $repos_root = $self->ra->{repos_root};
- my $url = $self->ra->{url};
- my $new_url = $url . $branch_from;
- print STDERR "Found possible branch point: ",
- "$new_url => ", $self->full_url, ", $r\n"
- unless $::_q > 1;
- $branch_from =~ s#^/##;
- my $gs = $self->other_gs($new_url, $url,
- $branch_from, $r, $self->{ref_id});
- my ($r0, $parent) = $gs->find_rev_before($r, 1);
- {
- my ($base, $head);
- if (!defined $r0 || !defined $parent) {
- ($base, $head) = parse_revision_argument(0, $r);
- } else {
- if ($r0 < $r) {
- $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
- 0, 1, sub { $base = $_[1] - 1 });
- }
- }
- if (defined $base && $base <= $r) {
- $gs->fetch($base, $r);
- }
- ($r0, $parent) = $gs->find_rev_before($r, 1);
- }
- if (defined $r0 && defined $parent) {
- print STDERR "Found branch parent: ($self->{ref_id}) $parent\n"
- unless $::_q > 1;
- my $ed;
- if ($self->ra->can_do_switch) {
- $self->assert_index_clean($parent);
- print STDERR "Following parent with do_switch\n"
- unless $::_q > 1;
- # do_switch works with svn/trunk >= r22312, but that
- # is not included with SVN 1.4.3 (the latest version
- # at the moment), so we can't rely on it
- $self->{last_rev} = $r0;
- $self->{last_commit} = $parent;
- $ed = Git::SVN::Fetcher->new($self, $gs->{path});
- $gs->ra->gs_do_switch($r0, $rev, $gs,
- $self->full_url, $ed)
- or die "SVN connection failed somewhere...\n";
- } elsif ($self->ra->trees_match($new_url, $r0,
- $self->full_url, $rev)) {
- print STDERR "Trees match:\n",
- " $new_url\@$r0\n",
- " ${\$self->full_url}\@$rev\n",
- "Following parent with no changes\n"
- unless $::_q > 1;
- $self->tmp_index_do(sub {
- command_noisy('read-tree', $parent);
- });
- $self->{last_commit} = $parent;
- } else {
- print STDERR "Following parent with do_update\n"
- unless $::_q > 1;
- $ed = Git::SVN::Fetcher->new($self);
- $self->ra->gs_do_update($rev, $rev, $self, $ed)
- or die "SVN connection failed somewhere...\n";
- }
- print STDERR "Successfully followed parent\n" unless $::_q > 1;
- return $self->make_log_entry($rev, [$parent], $ed);
- }
- return undef;
-}
-
-sub do_fetch {
- my ($self, $paths, $rev) = @_;
- my $ed;
- my ($last_rev, @parents);
- if (my $lc = $self->last_commit) {
- # we can have a branch that was deleted, then re-added
- # under the same name but copied from another path, in
- # which case we'll have multiple parents (we don't
- # want to break the original ref, nor lose copypath info):
- if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
- push @{$log_entry->{parents}}, $lc;
- return $log_entry;
- }
- $ed = Git::SVN::Fetcher->new($self);
- $last_rev = $self->{last_rev};
- $ed->{c} = $lc;
- @parents = ($lc);
- } else {
- $last_rev = $rev;
- if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
- return $log_entry;
- }
- $ed = Git::SVN::Fetcher->new($self);
- }
- unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
- die "SVN connection failed somewhere...\n";
- }
- $self->make_log_entry($rev, \@parents, $ed);
-}
-
-sub mkemptydirs {
- my ($self, $r) = @_;
-
- sub scan {
- my ($r, $empty_dirs, $line) = @_;
- if (defined $r && $line =~ /^r(\d+)$/) {
- return 0 if $1 > $r;
- } elsif ($line =~ /^ \+empty_dir: (.+)$/) {
- $empty_dirs->{$1} = 1;
- } elsif ($line =~ /^ \-empty_dir: (.+)$/) {
- my @d = grep {m[^\Q$1\E(/|$)]} (keys %$empty_dirs);
- delete @$empty_dirs{@d};
- }
- 1; # continue
- };
-
- my %empty_dirs = ();
- my $gz_file = "$self->{dir}/unhandled.log.gz";
- if (-f $gz_file) {
- if (!can_compress()) {
- warn "Compress::Zlib could not be found; ",
- "empty directories in $gz_file will not be read\n";
- } else {
- my $gz = Compress::Zlib::gzopen($gz_file, "rb") or
- die "Unable to open $gz_file: $!\n";
- my $line;
- while ($gz->gzreadline($line) > 0) {
- scan($r, \%empty_dirs, $line) or last;
- }
- $gz->gzclose;
- }
- }
-
- if (open my $fh, '<', "$self->{dir}/unhandled.log") {
- binmode $fh or croak "binmode: $!";
- while (<$fh>) {
- scan($r, \%empty_dirs, $_) or last;
- }
- close $fh;
- }
-
- my $strip = qr/\A\Q$self->{path}\E(?:\/|$)/;
- foreach my $d (sort keys %empty_dirs) {
- $d = uri_decode($d);
- $d =~ s/$strip//;
- next unless length($d);
- next if -d $d;
- if (-e $d) {
- warn "$d exists but is not a directory\n";
- } else {
- print "creating empty directory: $d\n";
- mkpath([$d]);
- }
- }
-}
-
-sub get_untracked {
- my ($self, $ed) = @_;
- my @out;
- my $h = $ed->{empty};
- foreach (sort keys %$h) {
- my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
- push @out, " $act: " . uri_encode($_);
- warn "W: $act: $_\n";
- }
- foreach my $t (qw/dir_prop file_prop/) {
- $h = $ed->{$t} or next;
- foreach my $path (sort keys %$h) {
- my $ppath = $path eq '' ? '.' : $path;
- foreach my $prop (sort keys %{$h->{$path}}) {
- next if $SKIP_PROP{$prop};
- my $v = $h->{$path}->{$prop};
- my $t_ppath_prop = "$t: " .
- uri_encode($ppath) . ' ' .
- uri_encode($prop);
- if (defined $v) {
- push @out, " +$t_ppath_prop " .
- uri_encode($v);
- } else {
- push @out, " -$t_ppath_prop";
- }
- }
- }
- }
- foreach my $t (qw/absent_file absent_directory/) {
- $h = $ed->{$t} or next;
- foreach my $parent (sort keys %$h) {
- foreach my $path (sort @{$h->{$parent}}) {
- push @out, " $t: " .
- uri_encode("$parent/$path");
- warn "W: $t: $parent/$path ",
- "Insufficient permissions?\n";
- }
- }
- }
- \@out;
-}
-
-sub get_tz {
- # some systmes don't handle or mishandle %z, so be creative.
- my $t = shift || time;
- my $gm = timelocal(gmtime($t));
- my $sign = qw( + + - )[ $t <=> $gm ];
- return sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
-}
-
-# parse_svn_date(DATE)
-# --------------------
-# Given a date (in UTC) from Subversion, return a string in the format
-# "<TZ Offset> <local date/time>" that Git will use.
-#
-# By default the parsed date will be in UTC; if $Git::SVN::_localtime
-# is true we'll convert it to the local timezone instead.
-sub parse_svn_date {
- my $date = shift || return '+0000 1970-01-01 00:00:00';
- my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
- (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
- croak "Unable to parse date: $date\n";
- my $parsed_date; # Set next.
-
- if ($Git::SVN::_localtime) {
- # Translate the Subversion datetime to an epoch time.
- # Begin by switching ourselves to $date's timezone, UTC.
- my $old_env_TZ = $ENV{TZ};
- $ENV{TZ} = 'UTC';
-
- my $epoch_in_UTC =
- POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
-
- # Determine our local timezone (including DST) at the
- # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
- # value of TZ, if any, at the time we were run.
- if (defined $Git::SVN::Log::TZ) {
- $ENV{TZ} = $Git::SVN::Log::TZ;
- } else {
- delete $ENV{TZ};
- }
-
- my $our_TZ = get_tz();
-
- # This converts $epoch_in_UTC into our local timezone.
- my ($sec, $min, $hour, $mday, $mon, $year,
- $wday, $yday, $isdst) = localtime($epoch_in_UTC);
-
- $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
- $our_TZ, $year + 1900, $mon + 1,
- $mday, $hour, $min, $sec);
-
- # Reset us to the timezone in effect when we entered
- # this routine.
- if (defined $old_env_TZ) {
- $ENV{TZ} = $old_env_TZ;
- } else {
- delete $ENV{TZ};
- }
- } else {
- $parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
- }
-
- return $parsed_date;
-}
-
-sub other_gs {
- my ($self, $new_url, $url,
- $branch_from, $r, $old_ref_id) = @_;
- my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
- unless ($gs) {
- my $ref_id = $old_ref_id;
- $ref_id =~ s/\@\d+-*$//;
- $ref_id .= "\@$r";
- # just grow a tail if we're not unique enough :x
- $ref_id .= '-' while find_ref($ref_id);
- my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
- if ($u =~ s#^\Q$url\E(/|$)##) {
- $p = $u;
- $u = $url;
- $repo_id = $self->{repo_id};
- }
- while (1) {
- # It is possible to tag two different subdirectories at
- # the same revision. If the url for an existing ref
- # does not match, we must either find a ref with a
- # matching url or create a new ref by growing a tail.
- $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
- my (undef, $max_commit) = $gs->rev_map_max(1);
- last if (!$max_commit);
- my ($url) = ::cmt_metadata($max_commit);
- last if ($url eq $gs->metadata_url);
- $ref_id .= '-';
- }
- print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
- }
- $gs
-}
-
-sub call_authors_prog {
- my ($orig_author) = @_;
- $orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author);
- my $author = `$::_authors_prog $orig_author`;
- if ($? != 0) {
- die "$::_authors_prog failed with exit code $?\n"
- }
- if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) {
- my ($name, $email) = ($1, $2);
- $email = undef if length $2 == 0;
- return [$name, $email];
- } else {
- die "Author: $orig_author: $::_authors_prog returned "
- . "invalid author format: $author\n";
- }
-}
-
-sub check_author {
- my ($author) = @_;
- if (!defined $author || length $author == 0) {
- $author = '(no author)';
- }
- if (!defined $::users{$author}) {
- if (defined $::_authors_prog) {
- $::users{$author} = call_authors_prog($author);
- } elsif (defined $::_authors) {
- die "Author: $author not defined in $::_authors file\n";
- }
- }
- $author;
-}
-
-sub find_extra_svk_parents {
- my ($self, $ed, $tickets, $parents) = @_;
- # aha! svk:merge property changed...
- my @tickets = split "\n", $tickets;
- my @known_parents;
- for my $ticket ( @tickets ) {
- my ($uuid, $path, $rev) = split /:/, $ticket;
- if ( $uuid eq $self->ra_uuid ) {
- my $url = $self->{url};
- my $repos_root = $url;
- my $branch_from = $path;
- $branch_from =~ s{^/}{};
- my $gs = $self->other_gs($repos_root."/".$branch_from,
- $url,
- $branch_from,
- $rev,
- $self->{ref_id});
- if ( my $commit = $gs->rev_map_get($rev, $uuid) ) {
- # wahey! we found it, but it might be
- # an old one (!)
- push @known_parents, [ $rev, $commit ];
- }
- }
- }
- # Ordering matters; highest-numbered commit merge tickets
- # first, as they may account for later merge ticket additions
- # or changes.
- @known_parents = map {$_->[1]} sort {$b->[0] <=> $a->[0]} @known_parents;
- for my $parent ( @known_parents ) {
- my @cmd = ('rev-list', $parent, map { "^$_" } @$parents );
- my ($msg_fh, $ctx) = command_output_pipe(@cmd);
- my $new;
- while ( <$msg_fh> ) {
- $new=1;last;
- }
- command_close_pipe($msg_fh, $ctx);
- if ( $new ) {
- print STDERR
- "Found merge parent (svk:merge ticket): $parent\n";
- push @$parents, $parent;
- }
- }
-}
-
-sub lookup_svn_merge {
- my $uuid = shift;
- my $url = shift;
- my $merge = shift;
-
- my ($source, $revs) = split ":", $merge;
- my $path = $source;
- $path =~ s{^/}{};
- my $gs = Git::SVN->find_by_url($url.$source, $url, $path);
- if ( !$gs ) {
- warn "Couldn't find revmap for $url$source\n";
- return;
- }
- my @ranges = split ",", $revs;
- my ($tip, $tip_commit);
- my @merged_commit_ranges;
- # find the tip
- for my $range ( @ranges ) {
- my ($bottom, $top) = split "-", $range;
- $top ||= $bottom;
- my $bottom_commit = $gs->find_rev_after( $bottom, 1, $top );
- my $top_commit = $gs->find_rev_before( $top, 1, $bottom );
-
- unless ($top_commit and $bottom_commit) {
- warn "W:unknown path/rev in svn:mergeinfo "
- ."dirprop: $source:$range\n";
- next;
- }
-
- if (scalar(command('rev-parse', "$bottom_commit^@"))) {
- push @merged_commit_ranges,
- "$bottom_commit^..$top_commit";
- } else {
- push @merged_commit_ranges, "$top_commit";
- }
-
- if ( !defined $tip or $top > $tip ) {
- $tip = $top;
- $tip_commit = $top_commit;
- }
- }
- return ($tip_commit, @merged_commit_ranges);
-}
-
-sub _rev_list {
- my ($msg_fh, $ctx) = command_output_pipe(
- "rev-list", @_,
- );
- my @rv;
- while ( <$msg_fh> ) {
- chomp;
- push @rv, $_;
- }
- command_close_pipe($msg_fh, $ctx);
- @rv;
-}
-
-sub check_cherry_pick {
- my $base = shift;
- my $tip = shift;
- my $parents = shift;
- my @ranges = @_;
- my %commits = map { $_ => 1 }
- _rev_list("--no-merges", $tip, "--not", $base, @$parents, "--");
- for my $range ( @ranges ) {
- delete @commits{_rev_list($range, "--")};
- }
- for my $commit (keys %commits) {
- if (has_no_changes($commit)) {
- delete $commits{$commit};
- }
- }
- return (keys %commits);
-}
-
-sub has_no_changes {
- my $commit = shift;
-
- my @revs = split / /, command_oneline(
- qw(rev-list --parents -1 -m), $commit);
-
- # Commits with no parents, e.g. the start of a partial branch,
- # have changes by definition.
- return 1 if (@revs < 2);
-
- # Commits with multiple parents, e.g a merge, have no changes
- # by definition.
- return 0 if (@revs > 2);
-
- return (command_oneline("rev-parse", "$commit^{tree}") eq
- command_oneline("rev-parse", "$commit~1^{tree}"));
-}
-
-sub tie_for_persistent_memoization {
- my $hash = shift;
- my $path = shift;
-
- if ($can_use_yaml) {
- tie %$hash => 'Git::SVN::Memoize::YAML', "$path.yaml";
- } else {
- tie %$hash => 'Memoize::Storable', "$path.db", 'nstore';
- }
-}
-
-# The GIT_DIR environment variable is not always set until after the command
-# line arguments are processed, so we can't memoize in a BEGIN block.
-{
- my $memoized = 0;
-
- sub memoize_svn_mergeinfo_functions {
- return if $memoized;
- $memoized = 1;
-
- my $cache_path = "$ENV{GIT_DIR}/svn/.caches/";
- mkpath([$cache_path]) unless -d $cache_path;
-
- my %lookup_svn_merge_cache;
- my %check_cherry_pick_cache;
- my %has_no_changes_cache;
-
- tie_for_persistent_memoization(\%lookup_svn_merge_cache,
- "$cache_path/lookup_svn_merge");
- memoize 'lookup_svn_merge',
- SCALAR_CACHE => 'FAULT',
- LIST_CACHE => ['HASH' => \%lookup_svn_merge_cache],
- ;
-
- tie_for_persistent_memoization(\%check_cherry_pick_cache,
- "$cache_path/check_cherry_pick");
- memoize 'check_cherry_pick',
- SCALAR_CACHE => 'FAULT',
- LIST_CACHE => ['HASH' => \%check_cherry_pick_cache],
- ;
-
- tie_for_persistent_memoization(\%has_no_changes_cache,
- "$cache_path/has_no_changes");
- memoize 'has_no_changes',
- SCALAR_CACHE => ['HASH' => \%has_no_changes_cache],
- LIST_CACHE => 'FAULT',
- ;
- }
-
- sub unmemoize_svn_mergeinfo_functions {
- return if not $memoized;
- $memoized = 0;
-
- Memoize::unmemoize 'lookup_svn_merge';
- Memoize::unmemoize 'check_cherry_pick';
- Memoize::unmemoize 'has_no_changes';
- }
-
- Memoize::memoize 'Git::SVN::repos_root';
-}
-
-END {
- # Force cache writeout explicitly instead of waiting for
- # global destruction to avoid segfault in Storable:
- # http://rt.cpan.org/Public/Bug/Display.html?id=36087
- unmemoize_svn_mergeinfo_functions();
-}
-
-sub parents_exclude {
- my $parents = shift;
- my @commits = @_;
- return unless @commits;
-
- my @excluded;
- my $excluded;
- do {
- my @cmd = ('rev-list', "-1", @commits, "--not", @$parents );
- $excluded = command_oneline(@cmd);
- if ( $excluded ) {
- my @new;
- my $found;
- for my $commit ( @commits ) {
- if ( $commit eq $excluded ) {
- push @excluded, $commit;
- $found++;
- last;
- }
- else {
- push @new, $commit;
- }
- }
- die "saw commit '$excluded' in rev-list output, "
- ."but we didn't ask for that commit (wanted: @commits --not @$parents)"
- unless $found;
- @commits = @new;
- }
- }
- while ($excluded and @commits);
-
- return @excluded;
-}
-
-
-# note: this function should only be called if the various dirprops
-# have actually changed
-sub find_extra_svn_parents {
- my ($self, $ed, $mergeinfo, $parents) = @_;
- # aha! svk:merge property changed...
-
- memoize_svn_mergeinfo_functions();
-
- # We first search for merged tips which are not in our
- # history. Then, we figure out which git revisions are in
- # that tip, but not this revision. If all of those revisions
- # are now marked as merge, we can add the tip as a parent.
- my @merges = split "\n", $mergeinfo;
- my @merge_tips;
- my $url = $self->{url};
- my $uuid = $self->ra_uuid;
- my %ranges;
- for my $merge ( @merges ) {
- my ($tip_commit, @ranges) =
- lookup_svn_merge( $uuid, $url, $merge );
- unless (!$tip_commit or
- grep { $_ eq $tip_commit } @$parents ) {
- push @merge_tips, $tip_commit;
- $ranges{$tip_commit} = \@ranges;
- } else {
- push @merge_tips, undef;
- }
- }
-
- my %excluded = map { $_ => 1 }
- parents_exclude($parents, grep { defined } @merge_tips);
-
- # check merge tips for new parents
- my @new_parents;
- for my $merge_tip ( @merge_tips ) {
- my $spec = shift @merges;
- next unless $merge_tip and $excluded{$merge_tip};
-
- my $ranges = $ranges{$merge_tip};
-
- # check out 'new' tips
- my $merge_base;
- eval {
- $merge_base = command_oneline(
- "merge-base",
- @$parents, $merge_tip,
- );
- };
- if ($@) {
- die "An error occurred during merge-base"
- unless $@->isa("Git::Error::Command");
-
- warn "W: Cannot find common ancestor between ".
- "@$parents and $merge_tip. Ignoring merge info.\n";
- next;
- }
-
- # double check that there are no missing non-merge commits
- my (@incomplete) = check_cherry_pick(
- $merge_base, $merge_tip,
- $parents,
- @$ranges,
- );
-
- if ( @incomplete ) {
- warn "W:svn cherry-pick ignored ($spec) - missing "
- .@incomplete." commit(s) (eg $incomplete[0])\n";
- } else {
- warn
- "Found merge parent (svn:mergeinfo prop): ",
- $merge_tip, "\n";
- push @new_parents, $merge_tip;
- }
- }
-
- # cater for merges which merge commits from multiple branches
- if ( @new_parents > 1 ) {
- for ( my $i = 0; $i <= $#new_parents; $i++ ) {
- for ( my $j = 0; $j <= $#new_parents; $j++ ) {
- next if $i == $j;
- next unless $new_parents[$i];
- next unless $new_parents[$j];
- my $revs = command_oneline(
- "rev-list", "-1",
- "$new_parents[$i]..$new_parents[$j]",
- );
- if ( !$revs ) {
- undef($new_parents[$j]);
- }
- }
- }
- }
- push @$parents, grep { defined } @new_parents;
-}
-
-sub make_log_entry {
- my ($self, $rev, $parents, $ed) = @_;
- my $untracked = $self->get_untracked($ed);
-
- my @parents = @$parents;
- my $ps = $ed->{path_strip} || "";
- for my $path ( grep { m/$ps/ } %{$ed->{dir_prop}} ) {
- my $props = $ed->{dir_prop}{$path};
- if ( $props->{"svk:merge"} ) {
- $self->find_extra_svk_parents
- ($ed, $props->{"svk:merge"}, \@parents);
- }
- if ( $props->{"svn:mergeinfo"} ) {
- $self->find_extra_svn_parents
- ($ed,
- $props->{"svn:mergeinfo"},
- \@parents);
- }
- }
-
- open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
- print $un "r$rev\n" or croak $!;
- print $un $_, "\n" foreach @$untracked;
- my %log_entry = ( parents => \@parents, revision => $rev,
- log => '');
-
- my $headrev;
- my $logged = delete $self->{logged_rev_props};
- if (!$logged || $self->{-want_revprops}) {
- my $rp = $self->ra->rev_proplist($rev);
- foreach (sort keys %$rp) {
- my $v = $rp->{$_};
- if (/^svn:(author|date|log)$/) {
- $log_entry{$1} = $v;
- } elsif ($_ eq 'svm:headrev') {
- $headrev = $v;
- } else {
- print $un " rev_prop: ", uri_encode($_), ' ',
- uri_encode($v), "\n";
- }
- }
- } else {
- map { $log_entry{$_} = $logged->{$_} } keys %$logged;
- }
- close $un or croak $!;
-
- $log_entry{date} = parse_svn_date($log_entry{date});
- $log_entry{log} .= "\n";
- my $author = $log_entry{author} = check_author($log_entry{author});
- my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
- : ($author, undef);
-
- my ($commit_name, $commit_email) = ($name, $email);
- if ($_use_log_author) {
- my $name_field;
- if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
- $name_field = $1;
- } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
- $name_field = $1;
- }
- if (!defined $name_field) {
- if (!defined $email) {
- $email = $name;
- }
- } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
- ($name, $email) = ($1, $2);
- } elsif ($name_field =~ /(.*)@/) {
- ($name, $email) = ($1, $name_field);
- } else {
- ($name, $email) = ($name_field, $name_field);
- }
- }
- if (defined $headrev && $self->use_svm_props) {
- if ($self->rewrite_root) {
- die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
- "options set!\n";
- }
- if ($self->rewrite_uuid) {
- die "Can't have both 'useSvmProps' and 'rewriteUUID' ",
- "options set!\n";
- }
- my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i;
- # we don't want "SVM: initializing mirror for junk" ...
- return undef if $r == 0;
- my $svm = $self->svm;
- if ($uuid ne $svm->{uuid}) {
- die "UUID mismatch on SVM path:\n",
- "expected: $svm->{uuid}\n",
- " got: $uuid\n";
- }
- my $full_url = $self->full_url;
- $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
- die "Failed to replace '$svm->{replace}' with ",
- "'$svm->{source}' in $full_url\n";
- # throw away username for storing in records
- remove_username($full_url);
- $log_entry{metadata} = "$full_url\@$r $uuid";
- $log_entry{svm_revision} = $r;
- $email ||= "$author\@$uuid";
- $commit_email ||= "$author\@$uuid";
- } elsif ($self->use_svnsync_props) {
- my $full_url = $self->svnsync->{url};
- $full_url .= "/$self->{path}" if length $self->{path};
- remove_username($full_url);
- my $uuid = $self->svnsync->{uuid};
- $log_entry{metadata} = "$full_url\@$rev $uuid";
- $email ||= "$author\@$uuid";
- $commit_email ||= "$author\@$uuid";
- } else {
- my $url = $self->metadata_url;
- remove_username($url);
- my $uuid = $self->rewrite_uuid || $self->ra->get_uuid;
- $log_entry{metadata} = "$url\@$rev " . $uuid;
- $email ||= "$author\@" . $uuid;
- $commit_email ||= "$author\@" . $uuid;
- }
- $log_entry{name} = $name;
- $log_entry{email} = $email;
- $log_entry{commit_name} = $commit_name;
- $log_entry{commit_email} = $commit_email;
- \%log_entry;
-}
-
-sub fetch {
- my ($self, $min_rev, $max_rev, @parents) = @_;
- my ($last_rev, $last_commit) = $self->last_rev_commit;
- my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
- $self->ra->gs_fetch_loop_common($base, $head, [$self]);
-}
-
-sub set_tree_cb {
- my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
- $self->{inject_parents} = { $rev => $tree };
- $self->fetch(undef, undef);
-}
-
-sub set_tree {
- my ($self, $tree) = (shift, shift);
- my $log_entry = ::get_commit_entry($tree);
- unless ($self->{last_rev}) {
- fatal("Must have an existing revision to commit");
- }
- my %ed_opts = ( r => $self->{last_rev},
- log => $log_entry->{log},
- ra => $self->ra,
- tree_a => $self->{last_commit},
- tree_b => $tree,
- editor_cb => sub {
- $self->set_tree_cb($log_entry, $tree, @_) },
- svn_path => $self->{path} );
- if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
- print "No changes\nr$self->{last_rev} = $tree\n";
- }
-}
-
-sub rebuild_from_rev_db {
- my ($self, $path) = @_;
- my $r = -1;
- open my $fh, '<', $path or croak "open: $!";
- binmode $fh or croak "binmode: $!";
- while (<$fh>) {
- length($_) == 41 or croak "inconsistent size in ($_) != 41";
- chomp($_);
- ++$r;
- next if $_ eq ('0' x 40);
- $self->rev_map_set($r, $_);
- print "r$r = $_\n";
- }
- close $fh or croak "close: $!";
- unlink $path or croak "unlink: $!";
-}
-
-sub rebuild {
- my ($self) = @_;
- my $map_path = $self->map_path;
- my $partial = (-e $map_path && ! -z $map_path);
- return unless ::verify_ref($self->refname.'^0');
- if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
- my $rev_db = $self->rev_db_path;
- $self->rebuild_from_rev_db($rev_db);
- if ($self->use_svm_props) {
- my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
- $self->rebuild_from_rev_db($svm_rev_db);
- }
- $self->unlink_rev_db_symlink;
- return;
- }
- print "Rebuilding $map_path ...\n" if (!$partial);
- my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
- (undef, undef));
- my ($log, $ctx) =
- command_output_pipe(qw/rev-list --pretty=raw --reverse/,
- ($head ? "$head.." : "") . $self->refname,
- '--');
- my $metadata_url = $self->metadata_url;
- remove_username($metadata_url);
- my $svn_uuid = $self->rewrite_uuid || $self->ra_uuid;
- my $c;
- while (<$log>) {
- if ( m{^commit ($::sha1)$} ) {
- $c = $1;
- next;
- }
- next unless s{^\s*(git-svn-id:)}{$1};
- my ($url, $rev, $uuid) = ::extract_metadata($_);
- remove_username($url);
-
- # ignore merges (from set-tree)
- next if (!defined $rev || !$uuid);
-
- # if we merged or otherwise started elsewhere, this is
- # how we break out of it
- if (($uuid ne $svn_uuid) ||
- ($metadata_url && $url && ($url ne $metadata_url))) {
- next;
- }
- if ($partial && $head) {
- print "Partial-rebuilding $map_path ...\n";
- print "Currently at $base_rev = $head\n";
- $head = undef;
- }
-
- $self->rev_map_set($rev, $c);
- print "r$rev = $c\n";
- }
- command_close_pipe($log, $ctx);
- print "Done rebuilding $map_path\n" if (!$partial || !$head);
- my $rev_db_path = $self->rev_db_path;
- if (-f $self->rev_db_path) {
- unlink $self->rev_db_path or croak "unlink: $!";
- }
- $self->unlink_rev_db_symlink;
-}
-
-# rev_map:
-# Tie::File seems to be prone to offset errors if revisions get sparse,
-# it's not that fast, either. Tie::File is also not in Perl 5.6. So
-# one of my favorite modules is out :< Next up would be one of the DBM
-# modules, but I'm not sure which is most portable...
-#
-# This is the replacement for the rev_db format, which was too big
-# and inefficient for large repositories with a lot of sparse history
-# (mainly tags)
-#
-# The format is this:
-# - 24 bytes for every record,
-# * 4 bytes for the integer representing an SVN revision number
-# * 20 bytes representing the sha1 of a git commit
-# - No empty padding records like the old format
-# (except the last record, which can be overwritten)
-# - new records are written append-only since SVN revision numbers
-# increase monotonically
-# - lookups on SVN revision number are done via a binary search
-# - Piping the file to xxd -c24 is a good way of dumping it for
-# viewing or editing (piped back through xxd -r), should the need
-# ever arise.
-# - The last record can be padding revision with an all-zero sha1
-# This is used to optimize fetch performance when using multiple
-# "fetch" directives in .git/config
-#
-# These files are disposable unless noMetadata or useSvmProps is set
-
-sub _rev_map_set {
- my ($fh, $rev, $commit) = @_;
-
- binmode $fh or croak "binmode: $!";
- my $size = (stat($fh))[7];
- ($size % 24) == 0 or croak "inconsistent size: $size";
-
- my $wr_offset = 0;
- if ($size > 0) {
- sysseek($fh, -24, SEEK_END) or croak "seek: $!";
- my $read = sysread($fh, my $buf, 24) or croak "read: $!";
- $read == 24 or croak "read only $read bytes (!= 24)";
- my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
- if ($last_commit eq ('0' x40)) {
- if ($size >= 48) {
- sysseek($fh, -48, SEEK_END) or croak "seek: $!";
- $read = sysread($fh, $buf, 24) or
- croak "read: $!";
- $read == 24 or
- croak "read only $read bytes (!= 24)";
- ($last_rev, $last_commit) =
- unpack(rev_map_fmt, $buf);
- if ($last_commit eq ('0' x40)) {
- croak "inconsistent .rev_map\n";
- }
- }
- if ($last_rev >= $rev) {
- croak "last_rev is higher!: $last_rev >= $rev";
- }
- $wr_offset = -24;
- }
- }
- sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
- syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
- croak "write: $!";
-}
-
-sub _rev_map_reset {
- my ($fh, $rev, $commit) = @_;
- my $c = _rev_map_get($fh, $rev);
- $c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n";
- my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!";
- truncate $fh, $offset or croak "truncate: $!";
-}
-
-sub mkfile {
- my ($path) = @_;
- unless (-e $path) {
- my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
- mkpath([$dir]) unless -d $dir;
- open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
- close $fh or die "Couldn't close (create) $path: $!\n";
- }
-}
-
-sub rev_map_set {
- my ($self, $rev, $commit, $update_ref, $uuid) = @_;
- defined $commit or die "missing arg3\n";
- length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
- my $db = $self->map_path($uuid);
- my $db_lock = "$db.lock";
- my $sigmask;
- $update_ref ||= 0;
- if ($update_ref) {
- $sigmask = POSIX::SigSet->new();
- my $signew = POSIX::SigSet->new(SIGINT, SIGHUP, SIGTERM,
- SIGALRM, SIGUSR1, SIGUSR2);
- sigprocmask(SIG_BLOCK, $signew, $sigmask) or
- croak "Can't block signals: $!";
- }
- mkfile($db);
-
- $LOCKFILES{$db_lock} = 1;
- my $sync;
- # both of these options make our .rev_db file very, very important
- # and we can't afford to lose it because rebuild() won't work
- if ($self->use_svm_props || $self->no_metadata) {
- $sync = 1;
- copy($db, $db_lock) or die "rev_map_set(@_): ",
- "Failed to copy: ",
- "$db => $db_lock ($!)\n";
- } else {
- rename $db, $db_lock or die "rev_map_set(@_): ",
- "Failed to rename: ",
- "$db => $db_lock ($!)\n";
- }
-
- sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
- or croak "Couldn't open $db_lock: $!\n";
- $update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) :
- _rev_map_set($fh, $rev, $commit);
- if ($sync) {
- $fh->flush or die "Couldn't flush $db_lock: $!\n";
- $fh->sync or die "Couldn't sync $db_lock: $!\n";
- }
- close $fh or croak $!;
- if ($update_ref) {
- $_head = $self;
- my $note = "";
- $note = " ($update_ref)" if ($update_ref !~ /^\d*$/);
- command_noisy('update-ref', '-m', "r$rev$note",
- $self->refname, $commit);
- }
- rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
- "$db_lock => $db ($!)\n";
- delete $LOCKFILES{$db_lock};
- if ($update_ref) {
- sigprocmask(SIG_SETMASK, $sigmask) or
- croak "Can't restore signal mask: $!";
- }
-}
-
-# If want_commit, this will return an array of (rev, commit) where
-# commit _must_ be a valid commit in the archive.
-# Otherwise, it'll return the max revision (whether or not the
-# commit is valid or just a 0x40 placeholder).
-sub rev_map_max {
- my ($self, $want_commit) = @_;
- $self->rebuild;
- my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
- $want_commit ? ($r, $c) : $r;
-}
-
-sub rev_map_max_norebuild {
- my ($self, $want_commit) = @_;
- my $map_path = $self->map_path;
- stat $map_path or return $want_commit ? (0, undef) : 0;
- sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
- binmode $fh or croak "binmode: $!";
- my $size = (stat($fh))[7];
- ($size % 24) == 0 or croak "inconsistent size: $size";
-
- if ($size == 0) {
- close $fh or croak "close: $!";
- return $want_commit ? (0, undef) : 0;
- }
-
- sysseek($fh, -24, SEEK_END) or croak "seek: $!";
- sysread($fh, my $buf, 24) == 24 or croak "read: $!";
- my ($r, $c) = unpack(rev_map_fmt, $buf);
- if ($want_commit && $c eq ('0' x40)) {
- if ($size < 48) {
- return $want_commit ? (0, undef) : 0;
- }
- sysseek($fh, -48, SEEK_END) or croak "seek: $!";
- sysread($fh, $buf, 24) == 24 or croak "read: $!";
- ($r, $c) = unpack(rev_map_fmt, $buf);
- if ($c eq ('0'x40)) {
- croak "Penultimate record is all-zeroes in $map_path";
- }
- }
- close $fh or croak "close: $!";
- $want_commit ? ($r, $c) : $r;
-}
-
-sub rev_map_get {
- my ($self, $rev, $uuid) = @_;
- my $map_path = $self->map_path($uuid);
- return undef unless -e $map_path;
-
- sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
- my $c = _rev_map_get($fh, $rev);
- close($fh) or croak "close: $!";
- $c
-}
-
-sub _rev_map_get {
- my ($fh, $rev) = @_;
-
- binmode $fh or croak "binmode: $!";
- my $size = (stat($fh))[7];
- ($size % 24) == 0 or croak "inconsistent size: $size";
-
- if ($size == 0) {
- return undef;
- }
-
- my ($l, $u) = (0, $size - 24);
- my ($r, $c, $buf);
-
- while ($l <= $u) {
- my $i = int(($l/24 + $u/24) / 2) * 24;
- sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
- sysread($fh, my $buf, 24) == 24 or croak "read: $!";
- my ($r, $c) = unpack(rev_map_fmt, $buf);
-
- if ($r < $rev) {
- $l = $i + 24;
- } elsif ($r > $rev) {
- $u = $i - 24;
- } else { # $r == $rev
- return $c eq ('0' x 40) ? undef : $c;
- }
- }
- undef;
-}
-
-# Finds the first svn revision that exists on (if $eq_ok is true) or
-# before $rev for the current branch. It will not search any lower
-# than $min_rev. Returns the git commit hash and svn revision number
-# if found, else (undef, undef).
-sub find_rev_before {
- my ($self, $rev, $eq_ok, $min_rev) = @_;
- --$rev unless $eq_ok;
- $min_rev ||= 1;
- my $max_rev = $self->rev_map_max;
- $rev = $max_rev if ($rev > $max_rev);
- while ($rev >= $min_rev) {
- if (my $c = $self->rev_map_get($rev)) {
- return ($rev, $c);
- }
- --$rev;
- }
- return (undef, undef);
-}
-
-# Finds the first svn revision that exists on (if $eq_ok is true) or
-# after $rev for the current branch. It will not search any higher
-# than $max_rev. Returns the git commit hash and svn revision number
-# if found, else (undef, undef).
-sub find_rev_after {
- my ($self, $rev, $eq_ok, $max_rev) = @_;
- ++$rev unless $eq_ok;
- $max_rev ||= $self->rev_map_max;
- while ($rev <= $max_rev) {
- if (my $c = $self->rev_map_get($rev)) {
- return ($rev, $c);
- }
- ++$rev;
- }
- return (undef, undef);
-}
-
-sub _new {
- my ($class, $repo_id, $ref_id, $path) = @_;
- unless (defined $repo_id && length $repo_id) {
- $repo_id = $default_repo_id;
- }
- unless (defined $ref_id && length $ref_id) {
- # Access the prefix option from the git-svn main program if it's loaded.
- my $prefix = defined &::opt_prefix ? ::opt_prefix() : "";
- $_[2] = $ref_id =
- "refs/remotes/$prefix$default_ref_id";
- }
- $_[1] = $repo_id;
- my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
-
- # Older repos imported by us used $GIT_DIR/svn/foo instead of
- # $GIT_DIR/svn/refs/remotes/foo when tracking refs/remotes/foo
- if ($ref_id =~ m{^refs/remotes/(.*)}) {
- my $old_dir = "$ENV{GIT_DIR}/svn/$1";
- if (-d $old_dir && ! -d $dir) {
- $dir = $old_dir;
- }
- }
-
- $_[3] = $path = '' unless (defined $path);
- mkpath([$dir]);
- bless {
- ref_id => $ref_id, dir => $dir, index => "$dir/index",
- path => $path, config => "$ENV{GIT_DIR}/svn/config",
- map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
-}
-
-# for read-only access of old .rev_db formats
-sub unlink_rev_db_symlink {
- my ($self) = @_;
- my $link = $self->rev_db_path;
- $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
- if (-l $link) {
- unlink $link or croak "unlink: $link failed!";
- }
-}
-
-sub rev_db_path {
- my ($self, $uuid) = @_;
- my $db_path = $self->map_path($uuid);
- $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
- or croak "map_path: $db_path does not contain '/.rev_map.' !";
- $db_path;
-}
-
-# the new replacement for .rev_db
-sub map_path {
- my ($self, $uuid) = @_;
- $uuid ||= $self->ra_uuid;
- "$self->{map_root}.$uuid";
-}
-
-sub uri_encode {
- my ($f) = @_;
- $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
- $f
-}
-
-sub uri_decode {
- my ($f) = @_;
- $f =~ s#%([0-9a-fA-F]{2})#chr(hex($1))#eg;
- $f
-}
-
-sub remove_username {
- $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
-}
-}
package Git::SVN::Log;
use strict;
diff --git a/perl/Git/SVN.pm b/perl/Git/SVN.pm
new file mode 100644
index 0000000..c71c041
--- /dev/null
+++ b/perl/Git/SVN.pm
@@ -0,0 +1,2319 @@
+package Git::SVN;
+use strict;
+use warnings;
+use Fcntl qw/:DEFAULT :seek/;
+use constant rev_map_fmt => 'NH40';
+use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent
+ $_repack $_repack_flags $_use_svm_props $_head
+ $_use_svnsync_props $no_reuse_existing $_minimize_url
+ $_use_log_author $_add_author_from $_localtime/;
+use Carp qw/croak/;
+use File::Path qw/mkpath/;
+use File::Copy qw/copy/;
+use IPC::Open3;
+use Time::Local;
+use Memoize; # core since 5.8.0, Jul 2002
+use Memoize::Storable;
+use POSIX qw(:signal_h);
+
+use Git qw(
+ command
+ command_oneline
+ command_noisy
+ command_output_pipe
+ command_close_pipe
+);
+use Git::SVN::Utils qw(fatal can_compress);
+
+my $can_use_yaml;
+BEGIN {
+ $can_use_yaml = eval { require Git::SVN::Memoize::YAML; 1};
+}
+
+my ($_gc_nr, $_gc_period);
+
+# properties that we do not log:
+my %SKIP_PROP;
+BEGIN {
+ %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
+ svn:special svn:executable
+ svn:entry:committed-rev
+ svn:entry:last-author
+ svn:entry:uuid
+ svn:entry:committed-date/;
+
+ # some options are read globally, but can be overridden locally
+ # per [svn-remote "..."] section. Command-line options will *NOT*
+ # override options set in an [svn-remote "..."] section
+ no strict 'refs';
+ for my $option (qw/follow_parent no_metadata use_svm_props
+ use_svnsync_props/) {
+ my $key = $option;
+ $key =~ tr/_//d;
+ my $prop = "-$option";
+ *$option = sub {
+ my ($self) = @_;
+ return $self->{$prop} if exists $self->{$prop};
+ my $k = "svn-remote.$self->{repo_id}.$key";
+ eval { command_oneline(qw/config --get/, $k) };
+ if ($@) {
+ $self->{$prop} = ${"Git::SVN::_$option"};
+ } else {
+ my $v = command_oneline(qw/config --bool/,$k);
+ $self->{$prop} = $v eq 'false' ? 0 : 1;
+ }
+ return $self->{$prop};
+ }
+ }
+}
+
+
+my (%LOCKFILES, %INDEX_FILES);
+END {
+ unlink keys %LOCKFILES if %LOCKFILES;
+ unlink keys %INDEX_FILES if %INDEX_FILES;
+}
+
+sub resolve_local_globs {
+ my ($url, $fetch, $glob_spec) = @_;
+ return unless defined $glob_spec;
+ my $ref = $glob_spec->{ref};
+ my $path = $glob_spec->{path};
+ foreach (command(qw#for-each-ref --format=%(refname) refs/#)) {
+ next unless m#^$ref->{regex}$#;
+ my $p = $1;
+ my $pathname = desanitize_refname($path->full_path($p));
+ my $refname = desanitize_refname($ref->full_path($p));
+ if (my $existing = $fetch->{$pathname}) {
+ if ($existing ne $refname) {
+ die "Refspec conflict:\n",
+ "existing: $existing\n",
+ " globbed: $refname\n";
+ }
+ my $u = (::cmt_metadata("$refname"))[0];
+ $u =~ s!^\Q$url\E(/|$)!! or die
+ "$refname: '$url' not found in '$u'\n";
+ if ($pathname ne $u) {
+ warn "W: Refspec glob conflict ",
+ "(ref: $refname):\n",
+ "expected path: $pathname\n",
+ " real path: $u\n",
+ "Continuing ahead with $u\n";
+ next;
+ }
+ } else {
+ $fetch->{$pathname} = $refname;
+ }
+ }
+}
+
+sub parse_revision_argument {
+ my ($base, $head) = @_;
+ if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
+ return ($base, $head);
+ }
+ return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
+ return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
+ return ($head, $head) if ($::_revision eq 'HEAD');
+ return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
+ return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
+ die "revision argument: $::_revision not understood by git-svn\n";
+}
+
+sub fetch_all {
+ my ($repo_id, $remotes) = @_;
+ if (ref $repo_id) {
+ my $gs = $repo_id;
+ $repo_id = undef;
+ $repo_id = $gs->{repo_id};
+ }
+ $remotes ||= read_all_remotes();
+ my $remote = $remotes->{$repo_id} or
+ die "[svn-remote \"$repo_id\"] unknown\n";
+ my $fetch = $remote->{fetch};
+ my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
+ my (@gs, @globs);
+ my $ra = Git::SVN::Ra->new($url);
+ my $uuid = $ra->get_uuid;
+ my $head = $ra->get_latest_revnum;
+
+ # ignore errors, $head revision may not even exist anymore
+ eval { $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] }) };
+ warn "W: $@\n" if $@;
+
+ my $base = defined $fetch ? $head : 0;
+
+ # read the max revs for wildcard expansion (branches/*, tags/*)
+ foreach my $t (qw/branches tags/) {
+ defined $remote->{$t} or next;
+ push @globs, @{$remote->{$t}};
+
+ my $max_rev = eval { tmp_config(qw/--int --get/,
+ "svn-remote.$repo_id.${t}-maxRev") };
+ if (defined $max_rev && ($max_rev < $base)) {
+ $base = $max_rev;
+ } elsif (!defined $max_rev) {
+ $base = 0;
+ }
+ }
+
+ if ($fetch) {
+ foreach my $p (sort keys %$fetch) {
+ my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
+ my $lr = $gs->rev_map_max;
+ if (defined $lr) {
+ $base = $lr if ($lr < $base);
+ }
+ push @gs, $gs;
+ }
+ }
+
+ ($base, $head) = parse_revision_argument($base, $head);
+ $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
+}
+
+sub read_all_remotes {
+ my $r = {};
+ my $use_svm_props = eval { command_oneline(qw/config --bool
+ svn.useSvmProps/) };
+ $use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
+ my $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*};
+ foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
+ if (m!^(.+)\.fetch=$svn_refspec$!) {
+ my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
+ die("svn-remote.$remote: remote ref '$remote_ref' "
+ . "must start with 'refs/'\n")
+ unless $remote_ref =~ m{^refs/};
+ $local_ref = uri_decode($local_ref);
+ $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
+ $r->{$remote}->{svm} = {} if $use_svm_props;
+ } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
+ $r->{$1}->{svm} = {};
+ } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
+ $r->{$1}->{url} = $2;
+ } elsif (m!^(.+)\.pushurl=\s*(.*)\s*$!) {
+ $r->{$1}->{pushurl} = $2;
+ } elsif (m!^(.+)\.ignore-refs=\s*(.*)\s*$!) {
+ $r->{$1}->{ignore_refs_regex} = $2;
+ } elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) {
+ my ($remote, $t, $local_ref, $remote_ref) =
+ ($1, $2, $3, $4);
+ die("svn-remote.$remote: remote ref '$remote_ref' ($t) "
+ . "must start with 'refs/'\n")
+ unless $remote_ref =~ m{^refs/};
+ $local_ref = uri_decode($local_ref);
+ my $rs = {
+ t => $t,
+ remote => $remote,
+ path => Git::SVN::GlobSpec->new($local_ref, 1),
+ ref => Git::SVN::GlobSpec->new($remote_ref, 0) };
+ if (length($rs->{ref}->{right}) != 0) {
+ die "The '*' glob character must be the last ",
+ "character of '$remote_ref'\n";
+ }
+ push @{ $r->{$remote}->{$t} }, $rs;
+ }
+ }
+
+ map {
+ if (defined $r->{$_}->{svm}) {
+ my $svm;
+ eval {
+ my $section = "svn-remote.$_";
+ $svm = {
+ source => tmp_config('--get',
+ "$section.svm-source"),
+ replace => tmp_config('--get',
+ "$section.svm-replace"),
+ }
+ };
+ $r->{$_}->{svm} = $svm;
+ }
+ } keys %$r;
+
+ foreach my $remote (keys %$r) {
+ foreach ( grep { defined $_ }
+ map { $r->{$remote}->{$_} } qw(branches tags) ) {
+ foreach my $rs ( @$_ ) {
+ $rs->{ignore_refs_regex} =
+ $r->{$remote}->{ignore_refs_regex};
+ }
+ }
+ }
+
+ $r;
+}
+
+sub init_vars {
+ $_gc_nr = $_gc_period = 1000;
+ if (defined $_repack || defined $_repack_flags) {
+ warn "Repack options are obsolete; they have no effect.\n";
+ }
+}
+
+sub verify_remotes_sanity {
+ return unless -d $ENV{GIT_DIR};
+ my %seen;
+ foreach (command(qw/config -l/)) {
+ if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
+ if ($seen{$1}) {
+ die "Remote ref refs/remote/$1 is tracked by",
+ "\n \"$_\"\nand\n \"$seen{$1}\"\n",
+ "Please resolve this ambiguity in ",
+ "your git configuration file before ",
+ "continuing\n";
+ }
+ $seen{$1} = $_;
+ }
+ }
+}
+
+sub find_existing_remote {
+ my ($url, $remotes) = @_;
+ return undef if $no_reuse_existing;
+ my $existing;
+ foreach my $repo_id (keys %$remotes) {
+ my $u = $remotes->{$repo_id}->{url} or next;
+ next if $u ne $url;
+ $existing = $repo_id;
+ last;
+ }
+ $existing;
+}
+
+sub init_remote_config {
+ my ($self, $url, $no_write) = @_;
+ $url =~ s!/+$!!; # strip trailing slash
+ my $r = read_all_remotes();
+ my $existing = find_existing_remote($url, $r);
+ if ($existing) {
+ unless ($no_write) {
+ print STDERR "Using existing ",
+ "[svn-remote \"$existing\"]\n";
+ }
+ $self->{repo_id} = $existing;
+ } elsif ($_minimize_url) {
+ my $min_url = Git::SVN::Ra->new($url)->minimize_url;
+ $existing = find_existing_remote($min_url, $r);
+ if ($existing) {
+ unless ($no_write) {
+ print STDERR "Using existing ",
+ "[svn-remote \"$existing\"]\n";
+ }
+ $self->{repo_id} = $existing;
+ }
+ if ($min_url ne $url) {
+ unless ($no_write) {
+ print STDERR "Using higher level of URL: ",
+ "$url => $min_url\n";
+ }
+ my $old_path = $self->{path};
+ $self->{path} = $url;
+ $self->{path} =~ s!^\Q$min_url\E(/|$)!!;
+ if (length $old_path) {
+ $self->{path} .= "/$old_path";
+ }
+ $url = $min_url;
+ }
+ }
+ my $orig_url;
+ if (!$existing) {
+ # verify that we aren't overwriting anything:
+ $orig_url = eval {
+ command_oneline('config', '--get',
+ "svn-remote.$self->{repo_id}.url")
+ };
+ if ($orig_url && ($orig_url ne $url)) {
+ die "svn-remote.$self->{repo_id}.url already set: ",
+ "$orig_url\nwanted to set to: $url\n";
+ }
+ }
+ my ($xrepo_id, $xpath) = find_ref($self->refname);
+ if (!$no_write && defined $xpath) {
+ die "svn-remote.$xrepo_id.fetch already set to track ",
+ "$xpath:", $self->refname, "\n";
+ }
+ unless ($no_write) {
+ command_noisy('config',
+ "svn-remote.$self->{repo_id}.url", $url);
+ $self->{path} =~ s{^/}{};
+ $self->{path} =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
+ command_noisy('config', '--add',
+ "svn-remote.$self->{repo_id}.fetch",
+ "$self->{path}:".$self->refname);
+ }
+ $self->{url} = $url;
+}
+
+sub find_by_url { # repos_root and, path are optional
+ my ($class, $full_url, $repos_root, $path) = @_;
+
+ return undef unless defined $full_url;
+ remove_username($full_url);
+ remove_username($repos_root) if defined $repos_root;
+ my $remotes = read_all_remotes();
+ if (defined $full_url && defined $repos_root && !defined $path) {
+ $path = $full_url;
+ $path =~ s#^\Q$repos_root\E(?:/|$)##;
+ }
+ foreach my $repo_id (keys %$remotes) {
+ my $u = $remotes->{$repo_id}->{url} or next;
+ remove_username($u);
+ next if defined $repos_root && $repos_root ne $u;
+
+ my $fetch = $remotes->{$repo_id}->{fetch} || {};
+ foreach my $t (qw/branches tags/) {
+ foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) {
+ resolve_local_globs($u, $fetch, $globspec);
+ }
+ }
+ my $p = $path;
+ my $rwr = rewrite_root({repo_id => $repo_id});
+ my $svm = $remotes->{$repo_id}->{svm}
+ if defined $remotes->{$repo_id}->{svm};
+ unless (defined $p) {
+ $p = $full_url;
+ my $z = $u;
+ my $prefix = '';
+ if ($rwr) {
+ $z = $rwr;
+ remove_username($z);
+ } elsif (defined $svm) {
+ $z = $svm->{source};
+ $prefix = $svm->{replace};
+ $prefix =~ s#^\Q$u\E(?:/|$)##;
+ $prefix =~ s#/$##;
+ }
+ $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
+ }
+ foreach my $f (keys %$fetch) {
+ next if $f ne $p;
+ return Git::SVN->new($fetch->{$f}, $repo_id, $f);
+ }
+ }
+ undef;
+}
+
+sub init {
+ my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
+ my $self = _new($class, $repo_id, $ref_id, $path);
+ if (defined $url) {
+ $self->init_remote_config($url, $no_write);
+ }
+ $self;
+}
+
+sub find_ref {
+ my ($ref_id) = @_;
+ foreach (command(qw/config -l/)) {
+ next unless m!^svn-remote\.(.+)\.fetch=
+ \s*(.*?)\s*:\s*(.+?)\s*$!x;
+ my ($repo_id, $path, $ref) = ($1, $2, $3);
+ if ($ref eq $ref_id) {
+ $path = '' if ($path =~ m#^\./?#);
+ return ($repo_id, $path);
+ }
+ }
+ (undef, undef, undef);
+}
+
+sub new {
+ my ($class, $ref_id, $repo_id, $path) = @_;
+ if (defined $ref_id && !defined $repo_id && !defined $path) {
+ ($repo_id, $path) = find_ref($ref_id);
+ if (!defined $repo_id) {
+ die "Could not find a \"svn-remote.*.fetch\" key ",
+ "in the repository configuration matching: ",
+ "$ref_id\n";
+ }
+ }
+ my $self = _new($class, $repo_id, $ref_id, $path);
+ if (!defined $self->{path} || !length $self->{path}) {
+ my $fetch = command_oneline('config', '--get',
+ "svn-remote.$repo_id.fetch",
+ ":$ref_id\$") or
+ die "Failed to read \"svn-remote.$repo_id.fetch\" ",
+ "\":$ref_id\$\" in config\n";
+ ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
+ }
+ $self->{path} =~ s{/+}{/}g;
+ $self->{path} =~ s{\A/}{};
+ $self->{path} =~ s{/\z}{};
+ $self->{url} = command_oneline('config', '--get',
+ "svn-remote.$repo_id.url") or
+ die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
+ $self->{pushurl} = eval { command_oneline('config', '--get',
+ "svn-remote.$repo_id.pushurl") };
+ $self->rebuild;
+ $self;
+}
+
+sub refname {
+ my ($refname) = $_[0]->{ref_id} ;
+
+ # It cannot end with a slash /, we'll throw up on this because
+ # SVN can't have directories with a slash in their name, either:
+ if ($refname =~ m{/$}) {
+ die "ref: '$refname' ends with a trailing slash, this is ",
+ "not permitted by git nor Subversion\n";
+ }
+
+ # It cannot have ASCII control character space, tilde ~, caret ^,
+ # colon :, question-mark ?, asterisk *, space, or open bracket [
+ # anywhere.
+ #
+ # Additionally, % must be escaped because it is used for escaping
+ # and we want our escaped refname to be reversible
+ $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
+
+ # no slash-separated component can begin with a dot .
+ # /.* becomes /%2E*
+ $refname =~ s{/\.}{/%2E}g;
+
+ # It cannot have two consecutive dots .. anywhere
+ # .. becomes %2E%2E
+ $refname =~ s{\.\.}{%2E%2E}g;
+
+ # trailing dots and .lock are not allowed
+ # .$ becomes %2E and .lock becomes %2Elock
+ $refname =~ s{\.(?=$|lock$)}{%2E};
+
+ # the sequence @{ is used to access the reflog
+ # @{ becomes %40{
+ $refname =~ s{\@\{}{%40\{}g;
+
+ return $refname;
+}
+
+sub desanitize_refname {
+ my ($refname) = @_;
+ $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
+ return $refname;
+}
+
+sub svm_uuid {
+ my ($self) = @_;
+ return $self->{svm}->{uuid} if $self->svm;
+ $self->ra;
+ unless ($self->{svm}) {
+ die "SVM UUID not cached, and reading remotely failed\n";
+ }
+ $self->{svm}->{uuid};
+}
+
+sub svm {
+ my ($self) = @_;
+ return $self->{svm} if $self->{svm};
+ my $svm;
+ # see if we have it in our config, first:
+ eval {
+ my $section = "svn-remote.$self->{repo_id}";
+ $svm = {
+ source => tmp_config('--get', "$section.svm-source"),
+ uuid => tmp_config('--get', "$section.svm-uuid"),
+ replace => tmp_config('--get', "$section.svm-replace"),
+ }
+ };
+ if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
+ $self->{svm} = $svm;
+ }
+ $self->{svm};
+}
+
+sub _set_svm_vars {
+ my ($self, $ra) = @_;
+ return $ra if $self->svm;
+
+ my @err = ( "useSvmProps set, but failed to read SVM properties\n",
+ "(svm:source, svm:uuid) ",
+ "from the following URLs:\n" );
+ sub read_svm_props {
+ my ($self, $ra, $path, $r) = @_;
+ my $props = ($ra->get_dir($path, $r))[2];
+ my $src = $props->{'svm:source'};
+ my $uuid = $props->{'svm:uuid'};
+ return undef if (!$src || !$uuid);
+
+ chomp($src, $uuid);
+
+ $uuid =~ m{^[0-9a-f\-]{30,}$}i
+ or die "doesn't look right - svm:uuid is '$uuid'\n";
+
+ # the '!' is used to mark the repos_root!/relative/path
+ $src =~ s{/?!/?}{/};
+ $src =~ s{/+$}{}; # no trailing slashes please
+ # username is of no interest
+ $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
+
+ my $replace = $ra->{url};
+ $replace .= "/$path" if length $path;
+
+ my $section = "svn-remote.$self->{repo_id}";
+ tmp_config("$section.svm-source", $src);
+ tmp_config("$section.svm-replace", $replace);
+ tmp_config("$section.svm-uuid", $uuid);
+ $self->{svm} = {
+ source => $src,
+ uuid => $uuid,
+ replace => $replace
+ };
+ }
+
+ my $r = $ra->get_latest_revnum;
+ my $path = $self->{path};
+ my %tried;
+ while (length $path) {
+ unless ($tried{"$self->{url}/$path"}) {
+ return $ra if $self->read_svm_props($ra, $path, $r);
+ $tried{"$self->{url}/$path"} = 1;
+ }
+ $path =~ s#/?[^/]+$##;
+ }
+ die "Path: '$path' should be ''\n" if $path ne '';
+ return $ra if $self->read_svm_props($ra, $path, $r);
+ $tried{"$self->{url}/$path"} = 1;
+
+ if ($ra->{repos_root} eq $self->{url}) {
+ die @err, (map { " $_\n" } keys %tried), "\n";
+ }
+
+ # nope, make sure we're connected to the repository root:
+ my $ok;
+ my @tried_b;
+ $path = $ra->{svn_path};
+ $ra = Git::SVN::Ra->new($ra->{repos_root});
+ while (length $path) {
+ unless ($tried{"$ra->{url}/$path"}) {
+ $ok = $self->read_svm_props($ra, $path, $r);
+ last if $ok;
+ $tried{"$ra->{url}/$path"} = 1;
+ }
+ $path =~ s#/?[^/]+$##;
+ }
+ die "Path: '$path' should be ''\n" if $path ne '';
+ $ok ||= $self->read_svm_props($ra, $path, $r);
+ $tried{"$ra->{url}/$path"} = 1;
+ if (!$ok) {
+ die @err, (map { " $_\n" } keys %tried), "\n";
+ }
+ Git::SVN::Ra->new($self->{url});
+}
+
+sub svnsync {
+ my ($self) = @_;
+ return $self->{svnsync} if $self->{svnsync};
+
+ if ($self->no_metadata) {
+ die "Can't have both 'noMetadata' and ",
+ "'useSvnsyncProps' options set!\n";
+ }
+ if ($self->rewrite_root) {
+ die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
+ "options set!\n";
+ }
+ if ($self->rewrite_uuid) {
+ die "Can't have both 'useSvnsyncProps' and 'rewriteUUID' ",
+ "options set!\n";
+ }
+
+ my $svnsync;
+ # see if we have it in our config, first:
+ eval {
+ my $section = "svn-remote.$self->{repo_id}";
+
+ my $url = tmp_config('--get', "$section.svnsync-url");
+ ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
+ die "doesn't look right - svn:sync-from-url is '$url'\n";
+
+ my $uuid = tmp_config('--get', "$section.svnsync-uuid");
+ ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
+ die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
+
+ $svnsync = { url => $url, uuid => $uuid }
+ };
+ if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
+ return $self->{svnsync} = $svnsync;
+ }
+
+ my $err = "useSvnsyncProps set, but failed to read " .
+ "svnsync property: svn:sync-from-";
+ my $rp = $self->ra->rev_proplist(0);
+
+ my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
+ ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
+ die "doesn't look right - svn:sync-from-url is '$url'\n";
+
+ my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
+ ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
+ die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
+
+ my $section = "svn-remote.$self->{repo_id}";
+ tmp_config('--add', "$section.svnsync-uuid", $uuid);
+ tmp_config('--add', "$section.svnsync-url", $url);
+ return $self->{svnsync} = { url => $url, uuid => $uuid };
+}
+
+# this allows us to memoize our SVN::Ra UUID locally and avoid a
+# remote lookup (useful for 'git svn log').
+sub ra_uuid {
+ my ($self) = @_;
+ unless ($self->{ra_uuid}) {
+ my $key = "svn-remote.$self->{repo_id}.uuid";
+ my $uuid = eval { tmp_config('--get', $key) };
+ if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
+ $self->{ra_uuid} = $uuid;
+ } else {
+ die "ra_uuid called without URL\n" unless $self->{url};
+ $self->{ra_uuid} = $self->ra->get_uuid;
+ tmp_config('--add', $key, $self->{ra_uuid});
+ }
+ }
+ $self->{ra_uuid};
+}
+
+sub _set_repos_root {
+ my ($self, $repos_root) = @_;
+ my $k = "svn-remote.$self->{repo_id}.reposRoot";
+ $repos_root ||= $self->ra->{repos_root};
+ tmp_config($k, $repos_root);
+ $repos_root;
+}
+
+sub repos_root {
+ my ($self) = @_;
+ my $k = "svn-remote.$self->{repo_id}.reposRoot";
+ eval { tmp_config('--get', $k) } || $self->_set_repos_root;
+}
+
+sub ra {
+ my ($self) = shift;
+ my $ra = Git::SVN::Ra->new($self->{url});
+ $self->_set_repos_root($ra->{repos_root});
+ if ($self->use_svm_props && !$self->{svm}) {
+ if ($self->no_metadata) {
+ die "Can't have both 'noMetadata' and ",
+ "'useSvmProps' options set!\n";
+ } elsif ($self->use_svnsync_props) {
+ die "Can't have both 'useSvnsyncProps' and ",
+ "'useSvmProps' options set!\n";
+ }
+ $ra = $self->_set_svm_vars($ra);
+ $self->{-want_revprops} = 1;
+ }
+ $ra;
+}
+
+# prop_walk(PATH, REV, SUB)
+# -------------------------
+# Recursively traverse PATH at revision REV and invoke SUB for each
+# directory that contains a SVN property. SUB will be invoked as
+# follows: &SUB(gs, path, props); where `gs' is this instance of
+# Git::SVN, `path' the path to the directory where the properties
+# `props' were found. The `path' will be relative to point of checkout,
+# that is, if url://repo/trunk is the current Git branch, and that
+# directory contains a sub-directory `d', SUB will be invoked with `/d/'
+# as `path' (note the trailing `/').
+sub prop_walk {
+ my ($self, $path, $rev, $sub) = @_;
+
+ $path =~ s#^/##;
+ my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
+ $path =~ s#^/*#/#g;
+ my $p = $path;
+ # Strip the irrelevant part of the path.
+ $p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
+ # Ensure the path is terminated by a `/'.
+ $p =~ s#/*$#/#;
+
+ # The properties contain all the internal SVN stuff nobody
+ # (usually) cares about.
+ my $interesting_props = 0;
+ foreach (keys %{$props}) {
+ # If it doesn't start with `svn:', it must be a
+ # user-defined property.
+ ++$interesting_props and next if $_ !~ /^svn:/;
+ # FIXME: Fragile, if SVN adds new public properties,
+ # this needs to be updated.
+ ++$interesting_props if /^svn:(?:ignore|keywords|executable
+ |eol-style|mime-type
+ |externals|needs-lock)$/x;
+ }
+ &$sub($self, $p, $props) if $interesting_props;
+
+ foreach (sort keys %$dirent) {
+ next if $dirent->{$_}->{kind} != $SVN::Node::dir;
+ $self->prop_walk($self->{path} . $p . $_, $rev, $sub);
+ }
+}
+
+sub last_rev { ($_[0]->last_rev_commit)[0] }
+sub last_commit { ($_[0]->last_rev_commit)[1] }
+
+# returns the newest SVN revision number and newest commit SHA1
+sub last_rev_commit {
+ my ($self) = @_;
+ if (defined $self->{last_rev} && defined $self->{last_commit}) {
+ return ($self->{last_rev}, $self->{last_commit});
+ }
+ my $c = ::verify_ref($self->refname.'^0');
+ if ($c && !$self->use_svm_props && !$self->no_metadata) {
+ my $rev = (::cmt_metadata($c))[1];
+ if (defined $rev) {
+ ($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
+ return ($rev, $c);
+ }
+ }
+ my $map_path = $self->map_path;
+ unless (-e $map_path) {
+ ($self->{last_rev}, $self->{last_commit}) = (undef, undef);
+ return (undef, undef);
+ }
+ my ($rev, $commit) = $self->rev_map_max(1);
+ ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
+ return ($rev, $commit);
+}
+
+sub get_fetch_range {
+ my ($self, $min, $max) = @_;
+ $max ||= $self->ra->get_latest_revnum;
+ $min ||= $self->rev_map_max;
+ (++$min, $max);
+}
+
+sub tmp_config {
+ my (@args) = @_;
+ my $old_def_config = "$ENV{GIT_DIR}/svn/config";
+ my $config = "$ENV{GIT_DIR}/svn/.metadata";
+ if (! -f $config && -f $old_def_config) {
+ rename $old_def_config, $config or
+ die "Failed rename $old_def_config => $config: $!\n";
+ }
+ my $old_config = $ENV{GIT_CONFIG};
+ $ENV{GIT_CONFIG} = $config;
+ $@ = undef;
+ my @ret = eval {
+ unless (-f $config) {
+ mkfile($config);
+ open my $fh, '>', $config or
+ die "Can't open $config: $!\n";
+ print $fh "; This file is used internally by ",
+ "git-svn\n" or die
+ "Couldn't write to $config: $!\n";
+ print $fh "; You should not have to edit it\n" or
+ die "Couldn't write to $config: $!\n";
+ close $fh or die "Couldn't close $config: $!\n";
+ }
+ command('config', @args);
+ };
+ my $err = $@;
+ if (defined $old_config) {
+ $ENV{GIT_CONFIG} = $old_config;
+ } else {
+ delete $ENV{GIT_CONFIG};
+ }
+ die $err if $err;
+ wantarray ? @ret : $ret[0];
+}
+
+sub tmp_index_do {
+ my ($self, $sub) = @_;
+ my $old_index = $ENV{GIT_INDEX_FILE};
+ $ENV{GIT_INDEX_FILE} = $self->{index};
+ $@ = undef;
+ my @ret = eval {
+ my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
+ mkpath([$dir]) unless -d $dir;
+ &$sub;
+ };
+ my $err = $@;
+ if (defined $old_index) {
+ $ENV{GIT_INDEX_FILE} = $old_index;
+ } else {
+ delete $ENV{GIT_INDEX_FILE};
+ }
+ die $err if $err;
+ wantarray ? @ret : $ret[0];
+}
+
+sub assert_index_clean {
+ my ($self, $treeish) = @_;
+
+ $self->tmp_index_do(sub {
+ command_noisy('read-tree', $treeish) unless -e $self->{index};
+ my $x = command_oneline('write-tree');
+ my ($y) = (command(qw/cat-file commit/, $treeish) =~
+ /^tree ($::sha1)/mo);
+ return if $y eq $x;
+
+ warn "Index mismatch: $y != $x\nrereading $treeish\n";
+ unlink $self->{index} or die "unlink $self->{index}: $!\n";
+ command_noisy('read-tree', $treeish);
+ $x = command_oneline('write-tree');
+ if ($y ne $x) {
+ fatal "trees ($treeish) $y != $x\n",
+ "Something is seriously wrong...";
+ }
+ });
+}
+
+sub get_commit_parents {
+ my ($self, $log_entry) = @_;
+ my (%seen, @ret, @tmp);
+ # legacy support for 'set-tree'; this is only used by set_tree_cb:
+ if (my $ip = $self->{inject_parents}) {
+ if (my $commit = delete $ip->{$log_entry->{revision}}) {
+ push @tmp, $commit;
+ }
+ }
+ if (my $cur = ::verify_ref($self->refname.'^0')) {
+ push @tmp, $cur;
+ }
+ if (my $ipd = $self->{inject_parents_dcommit}) {
+ if (my $commit = delete $ipd->{$log_entry->{revision}}) {
+ push @tmp, @$commit;
+ }
+ }
+ push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
+ while (my $p = shift @tmp) {
+ next if $seen{$p};
+ $seen{$p} = 1;
+ push @ret, $p;
+ }
+ @ret;
+}
+
+sub rewrite_root {
+ my ($self) = @_;
+ return $self->{-rewrite_root} if exists $self->{-rewrite_root};
+ my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
+ my $rwr = eval { command_oneline(qw/config --get/, $k) };
+ if ($rwr) {
+ $rwr =~ s#/+$##;
+ if ($rwr !~ m#^[a-z\+]+://#) {
+ die "$rwr is not a valid URL (key: $k)\n";
+ }
+ }
+ $self->{-rewrite_root} = $rwr;
+}
+
+sub rewrite_uuid {
+ my ($self) = @_;
+ return $self->{-rewrite_uuid} if exists $self->{-rewrite_uuid};
+ my $k = "svn-remote.$self->{repo_id}.rewriteUUID";
+ my $rwid = eval { command_oneline(qw/config --get/, $k) };
+ if ($rwid) {
+ $rwid =~ s#/+$##;
+ if ($rwid !~ m#^[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}$#) {
+ die "$rwid is not a valid UUID (key: $k)\n";
+ }
+ }
+ $self->{-rewrite_uuid} = $rwid;
+}
+
+sub metadata_url {
+ my ($self) = @_;
+ ($self->rewrite_root || $self->{url}) .
+ (length $self->{path} ? '/' . $self->{path} : '');
+}
+
+sub full_url {
+ my ($self) = @_;
+ $self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
+}
+
+sub full_pushurl {
+ my ($self) = @_;
+ if ($self->{pushurl}) {
+ return $self->{pushurl} . (length $self->{path} ? '/' .
+ $self->{path} : '');
+ } else {
+ return $self->full_url;
+ }
+}
+
+sub set_commit_header_env {
+ my ($log_entry) = @_;
+ my %env;
+ foreach my $ned (qw/NAME EMAIL DATE/) {
+ foreach my $ac (qw/AUTHOR COMMITTER/) {
+ $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
+ }
+ }
+
+ $ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
+ $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
+ $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
+
+ $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
+ ? $log_entry->{commit_name}
+ : $log_entry->{name};
+ $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
+ ? $log_entry->{commit_email}
+ : $log_entry->{email};
+ \%env;
+}
+
+sub restore_commit_header_env {
+ my ($env) = @_;
+ foreach my $ned (qw/NAME EMAIL DATE/) {
+ foreach my $ac (qw/AUTHOR COMMITTER/) {
+ my $k = "GIT_${ac}_${ned}";
+ if (defined $env->{$k}) {
+ $ENV{$k} = $env->{$k};
+ } else {
+ delete $ENV{$k};
+ }
+ }
+ }
+}
+
+sub gc {
+ command_noisy('gc', '--auto');
+};
+
+sub do_git_commit {
+ my ($self, $log_entry) = @_;
+ my $lr = $self->last_rev;
+ if (defined $lr && $lr >= $log_entry->{revision}) {
+ die "Last fetched revision of ", $self->refname,
+ " was r$lr, but we are about to fetch: ",
+ "r$log_entry->{revision}!\n";
+ }
+ if (my $c = $self->rev_map_get($log_entry->{revision})) {
+ croak "$log_entry->{revision} = $c already exists! ",
+ "Why are we refetching it?\n";
+ }
+ my $old_env = set_commit_header_env($log_entry);
+ my $tree = $log_entry->{tree};
+ if (!defined $tree) {
+ $tree = $self->tmp_index_do(sub {
+ command_oneline('write-tree') });
+ }
+ die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o;
+
+ my @exec = ('git', 'commit-tree', $tree);
+ foreach ($self->get_commit_parents($log_entry)) {
+ push @exec, '-p', $_;
+ }
+ defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
+ or croak $!;
+ binmode $msg_fh;
+
+ # we always get UTF-8 from SVN, but we may want our commits in
+ # a different encoding.
+ if (my $enc = Git::config('i18n.commitencoding')) {
+ require Encode;
+ Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
+ }
+ print $msg_fh $log_entry->{log} or croak $!;
+ restore_commit_header_env($old_env);
+ unless ($self->no_metadata) {
+ print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
+ or croak $!;
+ }
+ $msg_fh->flush == 0 or croak $!;
+ close $msg_fh or croak $!;
+ chomp(my $commit = do { local $/; <$out_fh> });
+ close $out_fh or croak $!;
+ waitpid $pid, 0;
+ croak $? if $?;
+ if ($commit !~ /^$::sha1$/o) {
+ die "Failed to commit, invalid sha1: $commit\n";
+ }
+
+ $self->rev_map_set($log_entry->{revision}, $commit, 1);
+
+ $self->{last_rev} = $log_entry->{revision};
+ $self->{last_commit} = $commit;
+ print "r$log_entry->{revision}" unless $::_q > 1;
+ if (defined $log_entry->{svm_revision}) {
+ print " (\@$log_entry->{svm_revision})" unless $::_q > 1;
+ $self->rev_map_set($log_entry->{svm_revision}, $commit,
+ 0, $self->svm_uuid);
+ }
+ print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
+ if (--$_gc_nr == 0) {
+ $_gc_nr = $_gc_period;
+ gc();
+ }
+ return $commit;
+}
+
+sub match_paths {
+ my ($self, $paths, $r) = @_;
+ return 1 if $self->{path} eq '';
+ if (my $path = $paths->{"/$self->{path}"}) {
+ return ($path->{action} eq 'D') ? 0 : 1;
+ }
+ $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//;
+ if (grep /$self->{path_regex}/, keys %$paths) {
+ return 1;
+ }
+ my $c = '';
+ foreach (split m#/#, $self->{path}) {
+ $c .= "/$_";
+ next unless ($paths->{$c} &&
+ ($paths->{$c}->{action} =~ /^[AR]$/));
+ if ($self->ra->check_path($self->{path}, $r) ==
+ $SVN::Node::dir) {
+ return 1;
+ }
+ }
+ return 0;
+}
+
+sub find_parent_branch {
+ my ($self, $paths, $rev) = @_;
+ return undef unless $self->follow_parent;
+ unless (defined $paths) {
+ my $err_handler = $SVN::Error::handler;
+ $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
+ $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1,
+ sub { $paths = $_[0] });
+ $SVN::Error::handler = $err_handler;
+ }
+ return undef unless defined $paths;
+
+ # look for a parent from another branch:
+ my @b_path_components = split m#/#, $self->{path};
+ my @a_path_components;
+ my $i;
+ while (@b_path_components) {
+ $i = $paths->{'/'.join('/', @b_path_components)};
+ last if $i && defined $i->{copyfrom_path};
+ unshift(@a_path_components, pop(@b_path_components));
+ }
+ return undef unless defined $i && defined $i->{copyfrom_path};
+ my $branch_from = $i->{copyfrom_path};
+ if (@a_path_components) {
+ print STDERR "branch_from: $branch_from => ";
+ $branch_from .= '/'.join('/', @a_path_components);
+ print STDERR $branch_from, "\n";
+ }
+ my $r = $i->{copyfrom_rev};
+ my $repos_root = $self->ra->{repos_root};
+ my $url = $self->ra->{url};
+ my $new_url = $url . $branch_from;
+ print STDERR "Found possible branch point: ",
+ "$new_url => ", $self->full_url, ", $r\n"
+ unless $::_q > 1;
+ $branch_from =~ s#^/##;
+ my $gs = $self->other_gs($new_url, $url,
+ $branch_from, $r, $self->{ref_id});
+ my ($r0, $parent) = $gs->find_rev_before($r, 1);
+ {
+ my ($base, $head);
+ if (!defined $r0 || !defined $parent) {
+ ($base, $head) = parse_revision_argument(0, $r);
+ } else {
+ if ($r0 < $r) {
+ $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1,
+ 0, 1, sub { $base = $_[1] - 1 });
+ }
+ }
+ if (defined $base && $base <= $r) {
+ $gs->fetch($base, $r);
+ }
+ ($r0, $parent) = $gs->find_rev_before($r, 1);
+ }
+ if (defined $r0 && defined $parent) {
+ print STDERR "Found branch parent: ($self->{ref_id}) $parent\n"
+ unless $::_q > 1;
+ my $ed;
+ if ($self->ra->can_do_switch) {
+ $self->assert_index_clean($parent);
+ print STDERR "Following parent with do_switch\n"
+ unless $::_q > 1;
+ # do_switch works with svn/trunk >= r22312, but that
+ # is not included with SVN 1.4.3 (the latest version
+ # at the moment), so we can't rely on it
+ $self->{last_rev} = $r0;
+ $self->{last_commit} = $parent;
+ $ed = Git::SVN::Fetcher->new($self, $gs->{path});
+ $gs->ra->gs_do_switch($r0, $rev, $gs,
+ $self->full_url, $ed)
+ or die "SVN connection failed somewhere...\n";
+ } elsif ($self->ra->trees_match($new_url, $r0,
+ $self->full_url, $rev)) {
+ print STDERR "Trees match:\n",
+ " $new_url\@$r0\n",
+ " ${\$self->full_url}\@$rev\n",
+ "Following parent with no changes\n"
+ unless $::_q > 1;
+ $self->tmp_index_do(sub {
+ command_noisy('read-tree', $parent);
+ });
+ $self->{last_commit} = $parent;
+ } else {
+ print STDERR "Following parent with do_update\n"
+ unless $::_q > 1;
+ $ed = Git::SVN::Fetcher->new($self);
+ $self->ra->gs_do_update($rev, $rev, $self, $ed)
+ or die "SVN connection failed somewhere...\n";
+ }
+ print STDERR "Successfully followed parent\n" unless $::_q > 1;
+ return $self->make_log_entry($rev, [$parent], $ed);
+ }
+ return undef;
+}
+
+sub do_fetch {
+ my ($self, $paths, $rev) = @_;
+ my $ed;
+ my ($last_rev, @parents);
+ if (my $lc = $self->last_commit) {
+ # we can have a branch that was deleted, then re-added
+ # under the same name but copied from another path, in
+ # which case we'll have multiple parents (we don't
+ # want to break the original ref, nor lose copypath info):
+ if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
+ push @{$log_entry->{parents}}, $lc;
+ return $log_entry;
+ }
+ $ed = Git::SVN::Fetcher->new($self);
+ $last_rev = $self->{last_rev};
+ $ed->{c} = $lc;
+ @parents = ($lc);
+ } else {
+ $last_rev = $rev;
+ if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
+ return $log_entry;
+ }
+ $ed = Git::SVN::Fetcher->new($self);
+ }
+ unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
+ die "SVN connection failed somewhere...\n";
+ }
+ $self->make_log_entry($rev, \@parents, $ed);
+}
+
+sub mkemptydirs {
+ my ($self, $r) = @_;
+
+ sub scan {
+ my ($r, $empty_dirs, $line) = @_;
+ if (defined $r && $line =~ /^r(\d+)$/) {
+ return 0 if $1 > $r;
+ } elsif ($line =~ /^ \+empty_dir: (.+)$/) {
+ $empty_dirs->{$1} = 1;
+ } elsif ($line =~ /^ \-empty_dir: (.+)$/) {
+ my @d = grep {m[^\Q$1\E(/|$)]} (keys %$empty_dirs);
+ delete @$empty_dirs{@d};
+ }
+ 1; # continue
+ };
+
+ my %empty_dirs = ();
+ my $gz_file = "$self->{dir}/unhandled.log.gz";
+ if (-f $gz_file) {
+ if (!can_compress()) {
+ warn "Compress::Zlib could not be found; ",
+ "empty directories in $gz_file will not be read\n";
+ } else {
+ my $gz = Compress::Zlib::gzopen($gz_file, "rb") or
+ die "Unable to open $gz_file: $!\n";
+ my $line;
+ while ($gz->gzreadline($line) > 0) {
+ scan($r, \%empty_dirs, $line) or last;
+ }
+ $gz->gzclose;
+ }
+ }
+
+ if (open my $fh, '<', "$self->{dir}/unhandled.log") {
+ binmode $fh or croak "binmode: $!";
+ while (<$fh>) {
+ scan($r, \%empty_dirs, $_) or last;
+ }
+ close $fh;
+ }
+
+ my $strip = qr/\A\Q$self->{path}\E(?:\/|$)/;
+ foreach my $d (sort keys %empty_dirs) {
+ $d = uri_decode($d);
+ $d =~ s/$strip//;
+ next unless length($d);
+ next if -d $d;
+ if (-e $d) {
+ warn "$d exists but is not a directory\n";
+ } else {
+ print "creating empty directory: $d\n";
+ mkpath([$d]);
+ }
+ }
+}
+
+sub get_untracked {
+ my ($self, $ed) = @_;
+ my @out;
+ my $h = $ed->{empty};
+ foreach (sort keys %$h) {
+ my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
+ push @out, " $act: " . uri_encode($_);
+ warn "W: $act: $_\n";
+ }
+ foreach my $t (qw/dir_prop file_prop/) {
+ $h = $ed->{$t} or next;
+ foreach my $path (sort keys %$h) {
+ my $ppath = $path eq '' ? '.' : $path;
+ foreach my $prop (sort keys %{$h->{$path}}) {
+ next if $SKIP_PROP{$prop};
+ my $v = $h->{$path}->{$prop};
+ my $t_ppath_prop = "$t: " .
+ uri_encode($ppath) . ' ' .
+ uri_encode($prop);
+ if (defined $v) {
+ push @out, " +$t_ppath_prop " .
+ uri_encode($v);
+ } else {
+ push @out, " -$t_ppath_prop";
+ }
+ }
+ }
+ }
+ foreach my $t (qw/absent_file absent_directory/) {
+ $h = $ed->{$t} or next;
+ foreach my $parent (sort keys %$h) {
+ foreach my $path (sort @{$h->{$parent}}) {
+ push @out, " $t: " .
+ uri_encode("$parent/$path");
+ warn "W: $t: $parent/$path ",
+ "Insufficient permissions?\n";
+ }
+ }
+ }
+ \@out;
+}
+
+sub get_tz {
+ # some systmes don't handle or mishandle %z, so be creative.
+ my $t = shift || time;
+ my $gm = timelocal(gmtime($t));
+ my $sign = qw( + + - )[ $t <=> $gm ];
+ return sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
+}
+
+# parse_svn_date(DATE)
+# --------------------
+# Given a date (in UTC) from Subversion, return a string in the format
+# "<TZ Offset> <local date/time>" that Git will use.
+#
+# By default the parsed date will be in UTC; if $Git::SVN::_localtime
+# is true we'll convert it to the local timezone instead.
+sub parse_svn_date {
+ my $date = shift || return '+0000 1970-01-01 00:00:00';
+ my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
+ (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
+ croak "Unable to parse date: $date\n";
+ my $parsed_date; # Set next.
+
+ if ($Git::SVN::_localtime) {
+ # Translate the Subversion datetime to an epoch time.
+ # Begin by switching ourselves to $date's timezone, UTC.
+ my $old_env_TZ = $ENV{TZ};
+ $ENV{TZ} = 'UTC';
+
+ my $epoch_in_UTC =
+ POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900);
+
+ # Determine our local timezone (including DST) at the
+ # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the
+ # value of TZ, if any, at the time we were run.
+ if (defined $Git::SVN::Log::TZ) {
+ $ENV{TZ} = $Git::SVN::Log::TZ;
+ } else {
+ delete $ENV{TZ};
+ }
+
+ my $our_TZ = get_tz();
+
+ # This converts $epoch_in_UTC into our local timezone.
+ my ($sec, $min, $hour, $mday, $mon, $year,
+ $wday, $yday, $isdst) = localtime($epoch_in_UTC);
+
+ $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
+ $our_TZ, $year + 1900, $mon + 1,
+ $mday, $hour, $min, $sec);
+
+ # Reset us to the timezone in effect when we entered
+ # this routine.
+ if (defined $old_env_TZ) {
+ $ENV{TZ} = $old_env_TZ;
+ } else {
+ delete $ENV{TZ};
+ }
+ } else {
+ $parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
+ }
+
+ return $parsed_date;
+}
+
+sub other_gs {
+ my ($self, $new_url, $url,
+ $branch_from, $r, $old_ref_id) = @_;
+ my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
+ unless ($gs) {
+ my $ref_id = $old_ref_id;
+ $ref_id =~ s/\@\d+-*$//;
+ $ref_id .= "\@$r";
+ # just grow a tail if we're not unique enough :x
+ $ref_id .= '-' while find_ref($ref_id);
+ my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
+ if ($u =~ s#^\Q$url\E(/|$)##) {
+ $p = $u;
+ $u = $url;
+ $repo_id = $self->{repo_id};
+ }
+ while (1) {
+ # It is possible to tag two different subdirectories at
+ # the same revision. If the url for an existing ref
+ # does not match, we must either find a ref with a
+ # matching url or create a new ref by growing a tail.
+ $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
+ my (undef, $max_commit) = $gs->rev_map_max(1);
+ last if (!$max_commit);
+ my ($url) = ::cmt_metadata($max_commit);
+ last if ($url eq $gs->metadata_url);
+ $ref_id .= '-';
+ }
+ print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
+ }
+ $gs
+}
+
+sub call_authors_prog {
+ my ($orig_author) = @_;
+ $orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author);
+ my $author = `$::_authors_prog $orig_author`;
+ if ($? != 0) {
+ die "$::_authors_prog failed with exit code $?\n"
+ }
+ if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) {
+ my ($name, $email) = ($1, $2);
+ $email = undef if length $2 == 0;
+ return [$name, $email];
+ } else {
+ die "Author: $orig_author: $::_authors_prog returned "
+ . "invalid author format: $author\n";
+ }
+}
+
+sub check_author {
+ my ($author) = @_;
+ if (!defined $author || length $author == 0) {
+ $author = '(no author)';
+ }
+ if (!defined $::users{$author}) {
+ if (defined $::_authors_prog) {
+ $::users{$author} = call_authors_prog($author);
+ } elsif (defined $::_authors) {
+ die "Author: $author not defined in $::_authors file\n";
+ }
+ }
+ $author;
+}
+
+sub find_extra_svk_parents {
+ my ($self, $ed, $tickets, $parents) = @_;
+ # aha! svk:merge property changed...
+ my @tickets = split "\n", $tickets;
+ my @known_parents;
+ for my $ticket ( @tickets ) {
+ my ($uuid, $path, $rev) = split /:/, $ticket;
+ if ( $uuid eq $self->ra_uuid ) {
+ my $url = $self->{url};
+ my $repos_root = $url;
+ my $branch_from = $path;
+ $branch_from =~ s{^/}{};
+ my $gs = $self->other_gs($repos_root."/".$branch_from,
+ $url,
+ $branch_from,
+ $rev,
+ $self->{ref_id});
+ if ( my $commit = $gs->rev_map_get($rev, $uuid) ) {
+ # wahey! we found it, but it might be
+ # an old one (!)
+ push @known_parents, [ $rev, $commit ];
+ }
+ }
+ }
+ # Ordering matters; highest-numbered commit merge tickets
+ # first, as they may account for later merge ticket additions
+ # or changes.
+ @known_parents = map {$_->[1]} sort {$b->[0] <=> $a->[0]} @known_parents;
+ for my $parent ( @known_parents ) {
+ my @cmd = ('rev-list', $parent, map { "^$_" } @$parents );
+ my ($msg_fh, $ctx) = command_output_pipe(@cmd);
+ my $new;
+ while ( <$msg_fh> ) {
+ $new=1;last;
+ }
+ command_close_pipe($msg_fh, $ctx);
+ if ( $new ) {
+ print STDERR
+ "Found merge parent (svk:merge ticket): $parent\n";
+ push @$parents, $parent;
+ }
+ }
+}
+
+sub lookup_svn_merge {
+ my $uuid = shift;
+ my $url = shift;
+ my $merge = shift;
+
+ my ($source, $revs) = split ":", $merge;
+ my $path = $source;
+ $path =~ s{^/}{};
+ my $gs = Git::SVN->find_by_url($url.$source, $url, $path);
+ if ( !$gs ) {
+ warn "Couldn't find revmap for $url$source\n";
+ return;
+ }
+ my @ranges = split ",", $revs;
+ my ($tip, $tip_commit);
+ my @merged_commit_ranges;
+ # find the tip
+ for my $range ( @ranges ) {
+ my ($bottom, $top) = split "-", $range;
+ $top ||= $bottom;
+ my $bottom_commit = $gs->find_rev_after( $bottom, 1, $top );
+ my $top_commit = $gs->find_rev_before( $top, 1, $bottom );
+
+ unless ($top_commit and $bottom_commit) {
+ warn "W:unknown path/rev in svn:mergeinfo "
+ ."dirprop: $source:$range\n";
+ next;
+ }
+
+ if (scalar(command('rev-parse', "$bottom_commit^@"))) {
+ push @merged_commit_ranges,
+ "$bottom_commit^..$top_commit";
+ } else {
+ push @merged_commit_ranges, "$top_commit";
+ }
+
+ if ( !defined $tip or $top > $tip ) {
+ $tip = $top;
+ $tip_commit = $top_commit;
+ }
+ }
+ return ($tip_commit, @merged_commit_ranges);
+}
+
+sub _rev_list {
+ my ($msg_fh, $ctx) = command_output_pipe(
+ "rev-list", @_,
+ );
+ my @rv;
+ while ( <$msg_fh> ) {
+ chomp;
+ push @rv, $_;
+ }
+ command_close_pipe($msg_fh, $ctx);
+ @rv;
+}
+
+sub check_cherry_pick {
+ my $base = shift;
+ my $tip = shift;
+ my $parents = shift;
+ my @ranges = @_;
+ my %commits = map { $_ => 1 }
+ _rev_list("--no-merges", $tip, "--not", $base, @$parents, "--");
+ for my $range ( @ranges ) {
+ delete @commits{_rev_list($range, "--")};
+ }
+ for my $commit (keys %commits) {
+ if (has_no_changes($commit)) {
+ delete $commits{$commit};
+ }
+ }
+ return (keys %commits);
+}
+
+sub has_no_changes {
+ my $commit = shift;
+
+ my @revs = split / /, command_oneline(
+ qw(rev-list --parents -1 -m), $commit);
+
+ # Commits with no parents, e.g. the start of a partial branch,
+ # have changes by definition.
+ return 1 if (@revs < 2);
+
+ # Commits with multiple parents, e.g a merge, have no changes
+ # by definition.
+ return 0 if (@revs > 2);
+
+ return (command_oneline("rev-parse", "$commit^{tree}") eq
+ command_oneline("rev-parse", "$commit~1^{tree}"));
+}
+
+sub tie_for_persistent_memoization {
+ my $hash = shift;
+ my $path = shift;
+
+ if ($can_use_yaml) {
+ tie %$hash => 'Git::SVN::Memoize::YAML', "$path.yaml";
+ } else {
+ tie %$hash => 'Memoize::Storable', "$path.db", 'nstore';
+ }
+}
+
+# The GIT_DIR environment variable is not always set until after the command
+# line arguments are processed, so we can't memoize in a BEGIN block.
+{
+ my $memoized = 0;
+
+ sub memoize_svn_mergeinfo_functions {
+ return if $memoized;
+ $memoized = 1;
+
+ my $cache_path = "$ENV{GIT_DIR}/svn/.caches/";
+ mkpath([$cache_path]) unless -d $cache_path;
+
+ my %lookup_svn_merge_cache;
+ my %check_cherry_pick_cache;
+ my %has_no_changes_cache;
+
+ tie_for_persistent_memoization(\%lookup_svn_merge_cache,
+ "$cache_path/lookup_svn_merge");
+ memoize 'lookup_svn_merge',
+ SCALAR_CACHE => 'FAULT',
+ LIST_CACHE => ['HASH' => \%lookup_svn_merge_cache],
+ ;
+
+ tie_for_persistent_memoization(\%check_cherry_pick_cache,
+ "$cache_path/check_cherry_pick");
+ memoize 'check_cherry_pick',
+ SCALAR_CACHE => 'FAULT',
+ LIST_CACHE => ['HASH' => \%check_cherry_pick_cache],
+ ;
+
+ tie_for_persistent_memoization(\%has_no_changes_cache,
+ "$cache_path/has_no_changes");
+ memoize 'has_no_changes',
+ SCALAR_CACHE => ['HASH' => \%has_no_changes_cache],
+ LIST_CACHE => 'FAULT',
+ ;
+ }
+
+ sub unmemoize_svn_mergeinfo_functions {
+ return if not $memoized;
+ $memoized = 0;
+
+ Memoize::unmemoize 'lookup_svn_merge';
+ Memoize::unmemoize 'check_cherry_pick';
+ Memoize::unmemoize 'has_no_changes';
+ }
+
+ Memoize::memoize 'Git::SVN::repos_root';
+}
+
+END {
+ # Force cache writeout explicitly instead of waiting for
+ # global destruction to avoid segfault in Storable:
+ # http://rt.cpan.org/Public/Bug/Display.html?id=36087
+ unmemoize_svn_mergeinfo_functions();
+}
+
+sub parents_exclude {
+ my $parents = shift;
+ my @commits = @_;
+ return unless @commits;
+
+ my @excluded;
+ my $excluded;
+ do {
+ my @cmd = ('rev-list', "-1", @commits, "--not", @$parents );
+ $excluded = command_oneline(@cmd);
+ if ( $excluded ) {
+ my @new;
+ my $found;
+ for my $commit ( @commits ) {
+ if ( $commit eq $excluded ) {
+ push @excluded, $commit;
+ $found++;
+ last;
+ }
+ else {
+ push @new, $commit;
+ }
+ }
+ die "saw commit '$excluded' in rev-list output, "
+ ."but we didn't ask for that commit (wanted: @commits --not @$parents)"
+ unless $found;
+ @commits = @new;
+ }
+ }
+ while ($excluded and @commits);
+
+ return @excluded;
+}
+
+
+# note: this function should only be called if the various dirprops
+# have actually changed
+sub find_extra_svn_parents {
+ my ($self, $ed, $mergeinfo, $parents) = @_;
+ # aha! svk:merge property changed...
+
+ memoize_svn_mergeinfo_functions();
+
+ # We first search for merged tips which are not in our
+ # history. Then, we figure out which git revisions are in
+ # that tip, but not this revision. If all of those revisions
+ # are now marked as merge, we can add the tip as a parent.
+ my @merges = split "\n", $mergeinfo;
+ my @merge_tips;
+ my $url = $self->{url};
+ my $uuid = $self->ra_uuid;
+ my %ranges;
+ for my $merge ( @merges ) {
+ my ($tip_commit, @ranges) =
+ lookup_svn_merge( $uuid, $url, $merge );
+ unless (!$tip_commit or
+ grep { $_ eq $tip_commit } @$parents ) {
+ push @merge_tips, $tip_commit;
+ $ranges{$tip_commit} = \@ranges;
+ } else {
+ push @merge_tips, undef;
+ }
+ }
+
+ my %excluded = map { $_ => 1 }
+ parents_exclude($parents, grep { defined } @merge_tips);
+
+ # check merge tips for new parents
+ my @new_parents;
+ for my $merge_tip ( @merge_tips ) {
+ my $spec = shift @merges;
+ next unless $merge_tip and $excluded{$merge_tip};
+
+ my $ranges = $ranges{$merge_tip};
+
+ # check out 'new' tips
+ my $merge_base;
+ eval {
+ $merge_base = command_oneline(
+ "merge-base",
+ @$parents, $merge_tip,
+ );
+ };
+ if ($@) {
+ die "An error occurred during merge-base"
+ unless $@->isa("Git::Error::Command");
+
+ warn "W: Cannot find common ancestor between ".
+ "@$parents and $merge_tip. Ignoring merge info.\n";
+ next;
+ }
+
+ # double check that there are no missing non-merge commits
+ my (@incomplete) = check_cherry_pick(
+ $merge_base, $merge_tip,
+ $parents,
+ @$ranges,
+ );
+
+ if ( @incomplete ) {
+ warn "W:svn cherry-pick ignored ($spec) - missing "
+ .@incomplete." commit(s) (eg $incomplete[0])\n";
+ } else {
+ warn
+ "Found merge parent (svn:mergeinfo prop): ",
+ $merge_tip, "\n";
+ push @new_parents, $merge_tip;
+ }
+ }
+
+ # cater for merges which merge commits from multiple branches
+ if ( @new_parents > 1 ) {
+ for ( my $i = 0; $i <= $#new_parents; $i++ ) {
+ for ( my $j = 0; $j <= $#new_parents; $j++ ) {
+ next if $i == $j;
+ next unless $new_parents[$i];
+ next unless $new_parents[$j];
+ my $revs = command_oneline(
+ "rev-list", "-1",
+ "$new_parents[$i]..$new_parents[$j]",
+ );
+ if ( !$revs ) {
+ undef($new_parents[$j]);
+ }
+ }
+ }
+ }
+ push @$parents, grep { defined } @new_parents;
+}
+
+sub make_log_entry {
+ my ($self, $rev, $parents, $ed) = @_;
+ my $untracked = $self->get_untracked($ed);
+
+ my @parents = @$parents;
+ my $ps = $ed->{path_strip} || "";
+ for my $path ( grep { m/$ps/ } %{$ed->{dir_prop}} ) {
+ my $props = $ed->{dir_prop}{$path};
+ if ( $props->{"svk:merge"} ) {
+ $self->find_extra_svk_parents
+ ($ed, $props->{"svk:merge"}, \@parents);
+ }
+ if ( $props->{"svn:mergeinfo"} ) {
+ $self->find_extra_svn_parents
+ ($ed,
+ $props->{"svn:mergeinfo"},
+ \@parents);
+ }
+ }
+
+ open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
+ print $un "r$rev\n" or croak $!;
+ print $un $_, "\n" foreach @$untracked;
+ my %log_entry = ( parents => \@parents, revision => $rev,
+ log => '');
+
+ my $headrev;
+ my $logged = delete $self->{logged_rev_props};
+ if (!$logged || $self->{-want_revprops}) {
+ my $rp = $self->ra->rev_proplist($rev);
+ foreach (sort keys %$rp) {
+ my $v = $rp->{$_};
+ if (/^svn:(author|date|log)$/) {
+ $log_entry{$1} = $v;
+ } elsif ($_ eq 'svm:headrev') {
+ $headrev = $v;
+ } else {
+ print $un " rev_prop: ", uri_encode($_), ' ',
+ uri_encode($v), "\n";
+ }
+ }
+ } else {
+ map { $log_entry{$_} = $logged->{$_} } keys %$logged;
+ }
+ close $un or croak $!;
+
+ $log_entry{date} = parse_svn_date($log_entry{date});
+ $log_entry{log} .= "\n";
+ my $author = $log_entry{author} = check_author($log_entry{author});
+ my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
+ : ($author, undef);
+
+ my ($commit_name, $commit_email) = ($name, $email);
+ if ($_use_log_author) {
+ my $name_field;
+ if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
+ $name_field = $1;
+ } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
+ $name_field = $1;
+ }
+ if (!defined $name_field) {
+ if (!defined $email) {
+ $email = $name;
+ }
+ } elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
+ ($name, $email) = ($1, $2);
+ } elsif ($name_field =~ /(.*)@/) {
+ ($name, $email) = ($1, $name_field);
+ } else {
+ ($name, $email) = ($name_field, $name_field);
+ }
+ }
+ if (defined $headrev && $self->use_svm_props) {
+ if ($self->rewrite_root) {
+ die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
+ "options set!\n";
+ }
+ if ($self->rewrite_uuid) {
+ die "Can't have both 'useSvmProps' and 'rewriteUUID' ",
+ "options set!\n";
+ }
+ my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i;
+ # we don't want "SVM: initializing mirror for junk" ...
+ return undef if $r == 0;
+ my $svm = $self->svm;
+ if ($uuid ne $svm->{uuid}) {
+ die "UUID mismatch on SVM path:\n",
+ "expected: $svm->{uuid}\n",
+ " got: $uuid\n";
+ }
+ my $full_url = $self->full_url;
+ $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
+ die "Failed to replace '$svm->{replace}' with ",
+ "'$svm->{source}' in $full_url\n";
+ # throw away username for storing in records
+ remove_username($full_url);
+ $log_entry{metadata} = "$full_url\@$r $uuid";
+ $log_entry{svm_revision} = $r;
+ $email ||= "$author\@$uuid";
+ $commit_email ||= "$author\@$uuid";
+ } elsif ($self->use_svnsync_props) {
+ my $full_url = $self->svnsync->{url};
+ $full_url .= "/$self->{path}" if length $self->{path};
+ remove_username($full_url);
+ my $uuid = $self->svnsync->{uuid};
+ $log_entry{metadata} = "$full_url\@$rev $uuid";
+ $email ||= "$author\@$uuid";
+ $commit_email ||= "$author\@$uuid";
+ } else {
+ my $url = $self->metadata_url;
+ remove_username($url);
+ my $uuid = $self->rewrite_uuid || $self->ra->get_uuid;
+ $log_entry{metadata} = "$url\@$rev " . $uuid;
+ $email ||= "$author\@" . $uuid;
+ $commit_email ||= "$author\@" . $uuid;
+ }
+ $log_entry{name} = $name;
+ $log_entry{email} = $email;
+ $log_entry{commit_name} = $commit_name;
+ $log_entry{commit_email} = $commit_email;
+ \%log_entry;
+}
+
+sub fetch {
+ my ($self, $min_rev, $max_rev, @parents) = @_;
+ my ($last_rev, $last_commit) = $self->last_rev_commit;
+ my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
+ $self->ra->gs_fetch_loop_common($base, $head, [$self]);
+}
+
+sub set_tree_cb {
+ my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
+ $self->{inject_parents} = { $rev => $tree };
+ $self->fetch(undef, undef);
+}
+
+sub set_tree {
+ my ($self, $tree) = (shift, shift);
+ my $log_entry = ::get_commit_entry($tree);
+ unless ($self->{last_rev}) {
+ fatal("Must have an existing revision to commit");
+ }
+ my %ed_opts = ( r => $self->{last_rev},
+ log => $log_entry->{log},
+ ra => $self->ra,
+ tree_a => $self->{last_commit},
+ tree_b => $tree,
+ editor_cb => sub {
+ $self->set_tree_cb($log_entry, $tree, @_) },
+ svn_path => $self->{path} );
+ if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
+ print "No changes\nr$self->{last_rev} = $tree\n";
+ }
+}
+
+sub rebuild_from_rev_db {
+ my ($self, $path) = @_;
+ my $r = -1;
+ open my $fh, '<', $path or croak "open: $!";
+ binmode $fh or croak "binmode: $!";
+ while (<$fh>) {
+ length($_) == 41 or croak "inconsistent size in ($_) != 41";
+ chomp($_);
+ ++$r;
+ next if $_ eq ('0' x 40);
+ $self->rev_map_set($r, $_);
+ print "r$r = $_\n";
+ }
+ close $fh or croak "close: $!";
+ unlink $path or croak "unlink: $!";
+}
+
+sub rebuild {
+ my ($self) = @_;
+ my $map_path = $self->map_path;
+ my $partial = (-e $map_path && ! -z $map_path);
+ return unless ::verify_ref($self->refname.'^0');
+ if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
+ my $rev_db = $self->rev_db_path;
+ $self->rebuild_from_rev_db($rev_db);
+ if ($self->use_svm_props) {
+ my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
+ $self->rebuild_from_rev_db($svm_rev_db);
+ }
+ $self->unlink_rev_db_symlink;
+ return;
+ }
+ print "Rebuilding $map_path ...\n" if (!$partial);
+ my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
+ (undef, undef));
+ my ($log, $ctx) =
+ command_output_pipe(qw/rev-list --pretty=raw --reverse/,
+ ($head ? "$head.." : "") . $self->refname,
+ '--');
+ my $metadata_url = $self->metadata_url;
+ remove_username($metadata_url);
+ my $svn_uuid = $self->rewrite_uuid || $self->ra_uuid;
+ my $c;
+ while (<$log>) {
+ if ( m{^commit ($::sha1)$} ) {
+ $c = $1;
+ next;
+ }
+ next unless s{^\s*(git-svn-id:)}{$1};
+ my ($url, $rev, $uuid) = ::extract_metadata($_);
+ remove_username($url);
+
+ # ignore merges (from set-tree)
+ next if (!defined $rev || !$uuid);
+
+ # if we merged or otherwise started elsewhere, this is
+ # how we break out of it
+ if (($uuid ne $svn_uuid) ||
+ ($metadata_url && $url && ($url ne $metadata_url))) {
+ next;
+ }
+ if ($partial && $head) {
+ print "Partial-rebuilding $map_path ...\n";
+ print "Currently at $base_rev = $head\n";
+ $head = undef;
+ }
+
+ $self->rev_map_set($rev, $c);
+ print "r$rev = $c\n";
+ }
+ command_close_pipe($log, $ctx);
+ print "Done rebuilding $map_path\n" if (!$partial || !$head);
+ my $rev_db_path = $self->rev_db_path;
+ if (-f $self->rev_db_path) {
+ unlink $self->rev_db_path or croak "unlink: $!";
+ }
+ $self->unlink_rev_db_symlink;
+}
+
+# rev_map:
+# Tie::File seems to be prone to offset errors if revisions get sparse,
+# it's not that fast, either. Tie::File is also not in Perl 5.6. So
+# one of my favorite modules is out :< Next up would be one of the DBM
+# modules, but I'm not sure which is most portable...
+#
+# This is the replacement for the rev_db format, which was too big
+# and inefficient for large repositories with a lot of sparse history
+# (mainly tags)
+#
+# The format is this:
+# - 24 bytes for every record,
+# * 4 bytes for the integer representing an SVN revision number
+# * 20 bytes representing the sha1 of a git commit
+# - No empty padding records like the old format
+# (except the last record, which can be overwritten)
+# - new records are written append-only since SVN revision numbers
+# increase monotonically
+# - lookups on SVN revision number are done via a binary search
+# - Piping the file to xxd -c24 is a good way of dumping it for
+# viewing or editing (piped back through xxd -r), should the need
+# ever arise.
+# - The last record can be padding revision with an all-zero sha1
+# This is used to optimize fetch performance when using multiple
+# "fetch" directives in .git/config
+#
+# These files are disposable unless noMetadata or useSvmProps is set
+
+sub _rev_map_set {
+ my ($fh, $rev, $commit) = @_;
+
+ binmode $fh or croak "binmode: $!";
+ my $size = (stat($fh))[7];
+ ($size % 24) == 0 or croak "inconsistent size: $size";
+
+ my $wr_offset = 0;
+ if ($size > 0) {
+ sysseek($fh, -24, SEEK_END) or croak "seek: $!";
+ my $read = sysread($fh, my $buf, 24) or croak "read: $!";
+ $read == 24 or croak "read only $read bytes (!= 24)";
+ my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
+ if ($last_commit eq ('0' x40)) {
+ if ($size >= 48) {
+ sysseek($fh, -48, SEEK_END) or croak "seek: $!";
+ $read = sysread($fh, $buf, 24) or
+ croak "read: $!";
+ $read == 24 or
+ croak "read only $read bytes (!= 24)";
+ ($last_rev, $last_commit) =
+ unpack(rev_map_fmt, $buf);
+ if ($last_commit eq ('0' x40)) {
+ croak "inconsistent .rev_map\n";
+ }
+ }
+ if ($last_rev >= $rev) {
+ croak "last_rev is higher!: $last_rev >= $rev";
+ }
+ $wr_offset = -24;
+ }
+ }
+ sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
+ syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or
+ croak "write: $!";
+}
+
+sub _rev_map_reset {
+ my ($fh, $rev, $commit) = @_;
+ my $c = _rev_map_get($fh, $rev);
+ $c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n";
+ my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!";
+ truncate $fh, $offset or croak "truncate: $!";
+}
+
+sub mkfile {
+ my ($path) = @_;
+ unless (-e $path) {
+ my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
+ mkpath([$dir]) unless -d $dir;
+ open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
+ close $fh or die "Couldn't close (create) $path: $!\n";
+ }
+}
+
+sub rev_map_set {
+ my ($self, $rev, $commit, $update_ref, $uuid) = @_;
+ defined $commit or die "missing arg3\n";
+ length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n";
+ my $db = $self->map_path($uuid);
+ my $db_lock = "$db.lock";
+ my $sigmask;
+ $update_ref ||= 0;
+ if ($update_ref) {
+ $sigmask = POSIX::SigSet->new();
+ my $signew = POSIX::SigSet->new(SIGINT, SIGHUP, SIGTERM,
+ SIGALRM, SIGUSR1, SIGUSR2);
+ sigprocmask(SIG_BLOCK, $signew, $sigmask) or
+ croak "Can't block signals: $!";
+ }
+ mkfile($db);
+
+ $LOCKFILES{$db_lock} = 1;
+ my $sync;
+ # both of these options make our .rev_db file very, very important
+ # and we can't afford to lose it because rebuild() won't work
+ if ($self->use_svm_props || $self->no_metadata) {
+ $sync = 1;
+ copy($db, $db_lock) or die "rev_map_set(@_): ",
+ "Failed to copy: ",
+ "$db => $db_lock ($!)\n";
+ } else {
+ rename $db, $db_lock or die "rev_map_set(@_): ",
+ "Failed to rename: ",
+ "$db => $db_lock ($!)\n";
+ }
+
+ sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
+ or croak "Couldn't open $db_lock: $!\n";
+ $update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) :
+ _rev_map_set($fh, $rev, $commit);
+ if ($sync) {
+ $fh->flush or die "Couldn't flush $db_lock: $!\n";
+ $fh->sync or die "Couldn't sync $db_lock: $!\n";
+ }
+ close $fh or croak $!;
+ if ($update_ref) {
+ $_head = $self;
+ my $note = "";
+ $note = " ($update_ref)" if ($update_ref !~ /^\d*$/);
+ command_noisy('update-ref', '-m', "r$rev$note",
+ $self->refname, $commit);
+ }
+ rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
+ "$db_lock => $db ($!)\n";
+ delete $LOCKFILES{$db_lock};
+ if ($update_ref) {
+ sigprocmask(SIG_SETMASK, $sigmask) or
+ croak "Can't restore signal mask: $!";
+ }
+}
+
+# If want_commit, this will return an array of (rev, commit) where
+# commit _must_ be a valid commit in the archive.
+# Otherwise, it'll return the max revision (whether or not the
+# commit is valid or just a 0x40 placeholder).
+sub rev_map_max {
+ my ($self, $want_commit) = @_;
+ $self->rebuild;
+ my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
+ $want_commit ? ($r, $c) : $r;
+}
+
+sub rev_map_max_norebuild {
+ my ($self, $want_commit) = @_;
+ my $map_path = $self->map_path;
+ stat $map_path or return $want_commit ? (0, undef) : 0;
+ sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
+ binmode $fh or croak "binmode: $!";
+ my $size = (stat($fh))[7];
+ ($size % 24) == 0 or croak "inconsistent size: $size";
+
+ if ($size == 0) {
+ close $fh or croak "close: $!";
+ return $want_commit ? (0, undef) : 0;
+ }
+
+ sysseek($fh, -24, SEEK_END) or croak "seek: $!";
+ sysread($fh, my $buf, 24) == 24 or croak "read: $!";
+ my ($r, $c) = unpack(rev_map_fmt, $buf);
+ if ($want_commit && $c eq ('0' x40)) {
+ if ($size < 48) {
+ return $want_commit ? (0, undef) : 0;
+ }
+ sysseek($fh, -48, SEEK_END) or croak "seek: $!";
+ sysread($fh, $buf, 24) == 24 or croak "read: $!";
+ ($r, $c) = unpack(rev_map_fmt, $buf);
+ if ($c eq ('0'x40)) {
+ croak "Penultimate record is all-zeroes in $map_path";
+ }
+ }
+ close $fh or croak "close: $!";
+ $want_commit ? ($r, $c) : $r;
+}
+
+sub rev_map_get {
+ my ($self, $rev, $uuid) = @_;
+ my $map_path = $self->map_path($uuid);
+ return undef unless -e $map_path;
+
+ sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
+ my $c = _rev_map_get($fh, $rev);
+ close($fh) or croak "close: $!";
+ $c
+}
+
+sub _rev_map_get {
+ my ($fh, $rev) = @_;
+
+ binmode $fh or croak "binmode: $!";
+ my $size = (stat($fh))[7];
+ ($size % 24) == 0 or croak "inconsistent size: $size";
+
+ if ($size == 0) {
+ return undef;
+ }
+
+ my ($l, $u) = (0, $size - 24);
+ my ($r, $c, $buf);
+
+ while ($l <= $u) {
+ my $i = int(($l/24 + $u/24) / 2) * 24;
+ sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
+ sysread($fh, my $buf, 24) == 24 or croak "read: $!";
+ my ($r, $c) = unpack(rev_map_fmt, $buf);
+
+ if ($r < $rev) {
+ $l = $i + 24;
+ } elsif ($r > $rev) {
+ $u = $i - 24;
+ } else { # $r == $rev
+ return $c eq ('0' x 40) ? undef : $c;
+ }
+ }
+ undef;
+}
+
+# Finds the first svn revision that exists on (if $eq_ok is true) or
+# before $rev for the current branch. It will not search any lower
+# than $min_rev. Returns the git commit hash and svn revision number
+# if found, else (undef, undef).
+sub find_rev_before {
+ my ($self, $rev, $eq_ok, $min_rev) = @_;
+ --$rev unless $eq_ok;
+ $min_rev ||= 1;
+ my $max_rev = $self->rev_map_max;
+ $rev = $max_rev if ($rev > $max_rev);
+ while ($rev >= $min_rev) {
+ if (my $c = $self->rev_map_get($rev)) {
+ return ($rev, $c);
+ }
+ --$rev;
+ }
+ return (undef, undef);
+}
+
+# Finds the first svn revision that exists on (if $eq_ok is true) or
+# after $rev for the current branch. It will not search any higher
+# than $max_rev. Returns the git commit hash and svn revision number
+# if found, else (undef, undef).
+sub find_rev_after {
+ my ($self, $rev, $eq_ok, $max_rev) = @_;
+ ++$rev unless $eq_ok;
+ $max_rev ||= $self->rev_map_max;
+ while ($rev <= $max_rev) {
+ if (my $c = $self->rev_map_get($rev)) {
+ return ($rev, $c);
+ }
+ ++$rev;
+ }
+ return (undef, undef);
+}
+
+sub _new {
+ my ($class, $repo_id, $ref_id, $path) = @_;
+ unless (defined $repo_id && length $repo_id) {
+ $repo_id = $default_repo_id;
+ }
+ unless (defined $ref_id && length $ref_id) {
+ # Access the prefix option from the git-svn main program if it's loaded.
+ my $prefix = defined &::opt_prefix ? ::opt_prefix() : "";
+ $_[2] = $ref_id =
+ "refs/remotes/$prefix$default_ref_id";
+ }
+ $_[1] = $repo_id;
+ my $dir = "$ENV{GIT_DIR}/svn/$ref_id";
+
+ # Older repos imported by us used $GIT_DIR/svn/foo instead of
+ # $GIT_DIR/svn/refs/remotes/foo when tracking refs/remotes/foo
+ if ($ref_id =~ m{^refs/remotes/(.*)}) {
+ my $old_dir = "$ENV{GIT_DIR}/svn/$1";
+ if (-d $old_dir && ! -d $dir) {
+ $dir = $old_dir;
+ }
+ }
+
+ $_[3] = $path = '' unless (defined $path);
+ mkpath([$dir]);
+ bless {
+ ref_id => $ref_id, dir => $dir, index => "$dir/index",
+ path => $path, config => "$ENV{GIT_DIR}/svn/config",
+ map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
+}
+
+# for read-only access of old .rev_db formats
+sub unlink_rev_db_symlink {
+ my ($self) = @_;
+ my $link = $self->rev_db_path;
+ $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
+ if (-l $link) {
+ unlink $link or croak "unlink: $link failed!";
+ }
+}
+
+sub rev_db_path {
+ my ($self, $uuid) = @_;
+ my $db_path = $self->map_path($uuid);
+ $db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
+ or croak "map_path: $db_path does not contain '/.rev_map.' !";
+ $db_path;
+}
+
+# the new replacement for .rev_db
+sub map_path {
+ my ($self, $uuid) = @_;
+ $uuid ||= $self->ra_uuid;
+ "$self->{map_root}.$uuid";
+}
+
+sub uri_encode {
+ my ($f) = @_;
+ $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg;
+ $f
+}
+
+sub uri_decode {
+ my ($f) = @_;
+ $f =~ s#%([0-9a-fA-F]{2})#chr(hex($1))#eg;
+ $f
+}
+
+sub remove_username {
+ $_[0] =~ s{^([^:]*://)[^@]+@}{$1};
+}
+
+1;
diff --git a/perl/Makefile b/perl/Makefile
index 3478103..a628582 100644
--- a/perl/Makefile
+++ b/perl/Makefile
@@ -29,6 +29,7 @@ instdir_SQ = $(subst ','\'',$(prefix)/lib)
modules += Git
modules += Git/I18N
+modules += Git/SVN
modules += Git/SVN/Memoize/YAML
modules += Git/SVN/Fetcher
modules += Git/SVN/Editor