use vars qw/ $AUTHOR $VERSION
$SVN_URL $SVN_INFO $SVN_WC $SVN_UUID
$GIT_SVN_INDEX $GIT_SVN
- $GIT_DIR $REV_DIR $GIT_SVN_DIR/;
+ $GIT_DIR $GIT_SVN_DIR $REVDB/;
$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
-$VERSION = '1.1.0-pre';
+$VERSION = '1.1.1-broken';
use Cwd qw/abs_path/;
$GIT_DIR = abs_path($ENV{GIT_DIR} || '.git');
use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
use File::Spec qw//;
use POSIX qw/strftime/;
+use IPC::Open3;
+use Memoize;
+memoize('revisions_eq');
my ($SVN_PATH, $SVN, $SVN_LOG, $_use_lib);
$_use_lib = 1 unless $ENV{GIT_SVN_NO_LIB};
libsvn_load();
+my $_optimize_commits = 1 unless $ENV{GIT_SVN_NO_OPTIMIZE_COMMITS};
my $sha1 = qr/[a-f\d]{40}/;
my $sha1_short = qr/[a-f\d]{4,40}/;
my ($_revision,$_stdin,$_no_ignore_ext,$_no_stop_copy,$_help,$_rmdir,$_edit,
$_template, $_shared, $_no_default_regex, $_no_graft_copy,
$_limit, $_verbose, $_incremental, $_oneline, $_l_fmt, $_show_commit,
$_version, $_upgrade, $_authors, $_branch_all_refs, @_opt_m);
-my (@_branch_from, %tree_map, %users, %rusers);
+my (@_branch_from, %tree_map, %users, %rusers, %equiv);
my ($_svn_co_url_revs, $_svn_pg_peg_revs);
my @repo_path_split_cache;
next if (defined $SVN_UUID && ($uuid ne $SVN_UUID));
next if (defined $SVN_URL && defined $url && ($url ne $SVN_URL));
- print "r$rev = $c\n";
unless (defined $latest) {
if (!$SVN_URL && !$url) {
croak "SVN repository location required: $url\n";
setup_git_svn();
$latest = $rev;
}
- assert_revision_eq_or_unknown($rev, $c);
- sys('git-update-ref',"svn/$GIT_SVN/revs/$rev",$c);
+ revdb_set($REVDB, $rev, $c);
+ print "r$rev = $c\n";
$newest_rev = $rev if ($rev > $newest_rev);
}
close $rev_list or croak $?;
my $svn_log = svn_log_raw(@log_args);
my $base = next_log_entry($svn_log) or croak "No base revision!\n";
- my $last_commit = undef;
+ # don't need last_revision from grab_base_rev() because
+ # user could've specified a different revision to skip (they
+ # didn't want to import certain revisions into git for whatever
+ # reason, so trust $base->{revision} instead.
+ my (undef, $last_commit) = svn_grab_base_rev();
unless (-d $SVN_WC) {
svn_cmd_checkout($SVN_URL,$base->{revision},$SVN_WC);
chdir $SVN_WC or croak $!;
} else {
chdir $SVN_WC or croak $!;
read_uuid();
- eval { $last_commit = file_to_s("$REV_DIR/$base->{revision}") };
# looks like a user manually cp'd and svn switch'ed
unless ($last_commit) {
sys(qw/svn revert -R ./);
push @svn_up, '--ignore-externals' unless $_no_ignore_ext;
my $last = $base;
while (my $log_msg = next_log_entry($svn_log)) {
- assert_tree($last_commit);
if ($last->{revision} >= $log_msg->{revision}) {
croak "Out of order: last >= current: ",
"$last->{revision} >= $log_msg->{revision}\n";
defined(my $pid = fork) or croak $!;
if (!$pid) {
$SVN::Error::handler = \&libsvn_skip_unknown_revs;
- print "Fetching revisions $min .. $max\n";
# Yes I'm perfectly aware that the fourth argument
# below is the limit revisions number. Unfortunately
$log_msg, @parents);
}
});
- $SVN::Error::handler = sub { 'quiet warnings' };
exit 0;
}
waitpid $pid, 0;
}
$info = svn_info('.');
read_uuid($info);
- my $svn_current_rev = $info->{'Last Changed Rev'};
+ my $last = $fetched;
foreach my $c (@revs) {
- my $mods = svn_checkout_tree($svn_current_rev, $c);
+ my $mods = svn_checkout_tree($last, $c);
if (scalar @$mods == 0) {
print "Skipping, no changes detected\n";
next;
}
- $svn_current_rev = svn_commit_tree($svn_current_rev, $c);
+ $last = svn_commit_tree($last, $c);
}
}
my (@revs) = @_;
my ($r_last, $cmt_last) = svn_grab_base_rev();
defined $r_last or die "Must have an existing revision to commit\n";
- my $fetched = fetch_lib();
+ my $fetched = fetch();
if ($r_last != $fetched->{revision}) {
print STDERR "There are new revisions that were fetched ",
"and need to be merged (or acknowledged) ",
},
@lock)
);
- my $mods = libsvn_checkout_tree($r_last, $c, $ed);
+ my $mods = libsvn_checkout_tree($cmt_last, $c, $ed);
if (@$mods == 0) {
print "No changes\nr$r_last = $cmt_last\n";
$ed->abort_edit;
$no = 1;
}
}
- close $fh or croak $!;
+ close $fh or croak $?;
if (! defined $r_new && ! defined $cmt_new) {
unless ($no) {
die "Failed to parse revision information\n";
sub multi_fetch {
# try to do trunk first, since branches/tags
# may be descended from it.
- if (-d "$GIT_DIR/svn/trunk") {
- print "Fetching trunk\n";
- defined(my $pid = fork) or croak $!;
- if (!$pid) {
- $GIT_SVN = $ENV{GIT_SVN_ID} = 'trunk';
- init_vars();
- fetch(@_);
- exit 0;
- }
- waitpid $pid, 0;
- croak $? if $?;
+ if (-e "$GIT_DIR/svn/trunk/info/url") {
+ fetch_child_id('trunk', @_);
}
rec_fetch('', "$GIT_DIR/svn", @_);
}
my $pid = open(my $log,'-|');
defined $pid or croak $!;
if (!$pid) {
- my @rl = (qw/git-log --abbrev-commit --pretty=raw
- --default/, "remotes/$GIT_SVN");
- push @rl, '--raw' if $_verbose;
- exec(@rl, @args) or croak $!;
+ exec(git_svn_log_cmd($r_min,$r_max), @args) or croak $!;
}
setup_pager();
my (@k, $c, $d);
+
while (<$log>) {
if (/^commit ($sha1_short)/o) {
my $cmt = $1;
- if ($c && defined $c->{r} && $c->{r} != $r_last) {
+ if ($c && cmt_showable($c) && $c->{r} != $r_last) {
$r_last = $c->{r};
process_commit($c, $r_min, $r_max, \@k) or
goto out;
} elsif ($d) {
push @{$c->{diff}}, $_;
} elsif (/^ (git-svn-id:.+)$/) {
- my ($url, $rev, $uuid) = extract_metadata($1);
- $c->{r} = $rev;
+ (undef, $c->{r}, undef) = extract_metadata($1);
} elsif (s/^ //) {
push @{$c->{l}}, $_;
}
########################### utility functions #########################
+sub cmt_showable {
+ my ($c) = @_;
+ return 1 if defined $c->{r};
+ if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
+ $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
+ my @msg = safe_qx(qw/git-cat-file commit/, $c->{c});
+ shift @msg while ($msg[0] ne "\n");
+ shift @msg;
+ @{$c->{l}} = grep !/^git-svn-id: /, @msg;
+
+ (undef, $c->{r}, undef) = extract_metadata(
+ (grep(/^git-svn-id: /, @msg))[-1]);
+ }
+ return defined $c->{r};
+}
+
+sub git_svn_log_cmd {
+ my ($r_min, $r_max) = @_;
+ my @cmd = (qw/git-log --abbrev-commit --pretty=raw
+ --default/, "refs/remotes/$GIT_SVN");
+ push @cmd, '--summary' if $_verbose;
+ return @cmd unless defined $r_max;
+ if ($r_max == $r_min) {
+ push @cmd, '--max-count=1';
+ if (my $c = revdb_get($REVDB, $r_max)) {
+ push @cmd, $c;
+ }
+ } else {
+ my ($c_min, $c_max);
+ $c_max = revdb_get($REVDB, $r_max);
+ $c_min = revdb_get($REVDB, $r_min);
+ if ($c_min && $c_max) {
+ if ($r_max > $r_max) {
+ push @cmd, "$c_min..$c_max";
+ } else {
+ push @cmd, "$c_max..$c_min";
+ }
+ } elsif ($r_max > $r_min) {
+ push @cmd, $c_max;
+ } else {
+ push @cmd, $c_min;
+ }
+ }
+ return @cmd;
+}
+
+sub fetch_child_id {
+ my $id = shift;
+ print "Fetching $id\n";
+ my $ref = "$GIT_DIR/refs/remotes/$id";
+ my $ca = file_to_s($ref) if (-r $ref);
+ defined(my $pid = fork) or croak $!;
+ if (!$pid) {
+ $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
+ init_vars();
+ fetch(@_);
+ exit 0;
+ }
+ waitpid $pid, 0;
+ croak $? if $?;
+ return unless $_repack || -r $ref;
+
+ my $cb = file_to_s($ref);
+
+ defined($pid = open my $fh, '-|') or croak $!;
+ my $url = file_to_s("$GIT_DIR/svn/$id/info/url");
+ $url = qr/\Q$url\E/;
+ if (!$pid) {
+ exec qw/git-rev-list --pretty=raw/,
+ $ca ? "$ca..$cb" : $cb or croak $!;
+ }
+ while (<$fh>) {
+ if (/^ git-svn-id: $url\@\d+ [a-f0-9\-]+$/) {
+ check_repack();
+ } elsif (/^ git-svn-id: \S+\@\d+ [a-f0-9\-]+$/) {
+ last;
+ }
+ }
+ close $fh;
+}
+
sub rec_fetch {
my ($pfx, $p, @args) = @_;
my @dir;
$pfx .= '/' if $pfx && $pfx !~ m!/$!;
my $id = $pfx . basename $_;
next if $id eq 'trunk';
- print "Fetching $id\n";
- defined(my $pid = fork) or croak $!;
- if (!$pid) {
- $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
- init_vars();
- fetch(@args);
- exit 0;
- }
- waitpid $pid, 0;
- croak $? if $?;
+ fetch_child_id($id, @args);
} elsif (-d $_) {
push @dir, $_;
}
my ($grafts, $l_map, $u) = @_;
my $paths = $l_map->{$u};
my $pfx = common_prefix([keys %$paths]);
-
+ $SVN_URL ||= $u.$pfx;
my $pid = open my $fh, '-|';
defined $pid or croak $!;
unless ($pid) {
my ($base, $head) = libsvn_parse_revision();
my $inc = 1000;
my ($min, $max) = ($base, $head < $base+$inc ? $head : $base+$inc);
+ my $eh = $SVN::Error::handler;
+ $SVN::Error::handler = \&libsvn_skip_unknown_revs;
while (1) {
my $pool = SVN::Pool->new;
$SVN_LOG->get_log( "/$path", $min, $max, 0, 1, 1,
$max += $inc;
$max = $head if ($max > $head);
}
+ $SVN::Error::handler = $eh;
}
sub process_merge_msg_matches {
$SVN_UUID = $info->{'Repository UUID'} or
croak "Repository UUID unreadable\n";
}
- s_to_file($SVN_UUID,"$GIT_SVN_DIR/info/uuid");
}
sub quiet_run {
}
mkpath([$GIT_SVN_DIR]);
mkpath(["$GIT_SVN_DIR/info"]);
- mkpath([$REV_DIR]);
+ open my $fh, '>>',$REVDB or croak $!;
+ close $fh;
s_to_file($SVN_URL,"$GIT_SVN_DIR/info/url");
- open my $fd, '>>', "$GIT_SVN_DIR/info/exclude" or croak $!;
- print $fd '.svn',"\n";
- close $fd or croak $!;
- my ($url, $path) = repo_path_split($SVN_URL);
- s_to_file($url, "$GIT_SVN_DIR/info/repo_url");
- s_to_file($path, "$GIT_SVN_DIR/info/repo_path");
}
sub assert_svn_wc_clean {
croak "Error parsing $_\n";
}
}
- close $diff_fh or croak $!;
+ close $diff_fh or croak $?;
return \@mods;
}
sub get_diff {
- my ($svn_rev, $treeish) = @_;
- my $from = file_to_s("$REV_DIR/$svn_rev");
+ my ($from, $treeish) = @_;
assert_tree($from);
print "diff-tree $from $treeish\n";
my $pid = open my $diff_fh, '-|';
}
sub svn_checkout_tree {
- my ($svn_rev, $treeish) = @_;
- my $mods = get_diff($svn_rev, $treeish);
+ my ($from, $treeish) = @_;
+ my $mods = get_diff($from->{commit}, $treeish);
return $mods unless (scalar @$mods);
my ($rm, $add) = precommit_check($mods);
}
sub libsvn_checkout_tree {
- my ($svn_rev, $treeish, $ed) = @_;
- my $mods = get_diff($svn_rev, $treeish);
+ my ($from, $treeish, $ed) = @_;
+ my $mods = get_diff($from, $treeish);
return $mods unless (scalar @$mods);
my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
print $msg $_ or croak $!;
}
}
- close $msg_fh or croak $!;
+ close $msg_fh or croak $?;
}
close $msg or croak $!;
}
sub svn_commit_tree {
- my ($svn_rev, $commit) = @_;
+ my ($last, $commit) = @_;
my $commit_msg = "$GIT_SVN_DIR/.svn-commit.tmp.$$";
my $log_msg = get_commit_message($commit, $commit_msg);
my ($oneline) = ($log_msg->{msg} =~ /([^\n\r]+)/);
my @svn_up = qw(svn up);
push @svn_up, '--ignore-externals' unless $_no_ignore_ext;
- if ($committed == ($svn_rev + 1)) {
+ if ($_optimize_commits && ($committed == ($last->{revision} + 1))) {
push @svn_up, "-r$committed";
sys(@svn_up);
my $info = svn_info('.');
$log_msg->{author} = $info->{'Last Changed Author'};
$log_msg->{revision} = $committed;
$log_msg->{msg} .= "\n";
- my $parent = file_to_s("$REV_DIR/$svn_rev");
- git_commit($log_msg, $parent, $commit);
- return $committed;
+ $log_msg->{parents} = [ $last->{commit} ];
+ $log_msg->{commit} = git_commit($log_msg, $commit);
+ return $log_msg;
}
# resync immediately
- push @svn_up, "-r$svn_rev";
+ push @svn_up, "-r$last->{revision}";
sys(@svn_up);
- return fetch("$committed=$commit")->{revision};
+ return fetch("$committed=$commit");
}
sub rev_list_raw {
push @{$ret->{-order}}, $1;
}
}
- close $info_fh or croak $!;
+ close $info_fh or croak $?;
return $ret;
}
}
print $ui $x,"\0";
}
- close $ui or croak $!;
+ close $ui or croak $?;
}
sub index_changes {
return if $_use_lib;
+
+ if (!-f "$GIT_SVN_DIR/info/exclude") {
+ open my $fd, '>>', "$GIT_SVN_DIR/info/exclude" or croak $!;
+ print $fd '.svn',"\n";
+ close $fd or croak $!;
+ }
my $no_text_base = shift;
do_update_index([qw/git-diff-files --name-only -z/],
'remove',
}
sub assert_revision_unknown {
- my $revno = shift;
- if (-f "$REV_DIR/$revno") {
- croak "$REV_DIR/$revno already exists! ",
- "Why are we refetching it?";
+ my $r = shift;
+ if (my $c = revdb_get($REVDB, $r)) {
+ croak "$r = $c already exists! Why are we refetching it?";
}
}
return 1;
}
-sub assert_revision_eq_or_unknown {
- my ($revno, $commit) = @_;
- if (-f "$REV_DIR/$revno") {
- my $current = file_to_s("$REV_DIR/$revno");
- if (($commit ne $current) && !trees_eq($commit, $current)) {
- croak "$REV_DIR/$revno already exists!\n",
- "current: $current\nexpected: $commit\n";
- }
- return;
- }
-}
-
sub git_commit {
my ($log_msg, @parents) = @_;
assert_revision_unknown($log_msg->{revision});
}
my @update_ref = ('git-update-ref',"refs/remotes/$GIT_SVN",$commit);
if (my $primary_parent = shift @exec_parents) {
- $pid = fork;
- defined $pid or croak $!;
- if (!$pid) {
- close STDERR;
- close STDOUT;
- exec 'git-rev-parse','--verify',
- "refs/remotes/$GIT_SVN^0" or croak $!;
- }
- waitpid $pid, 0;
+ quiet_run(qw/git-rev-parse --verify/,"refs/remotes/$GIT_SVN^0");
push @update_ref, $primary_parent unless $?;
}
sys(@update_ref);
- sys('git-update-ref',"svn/$GIT_SVN/revs/$log_msg->{revision}",$commit);
+ revdb_set($REVDB, $log_msg->{revision}, $commit);
+
# this output is read via pipe, do not change:
print "r$log_msg->{revision} = $commit\n";
+ check_repack();
+ return $commit;
+}
+
+sub check_repack {
if ($_repack && (--$_repack_nr == 0)) {
$_repack_nr = $_repack;
sys("git repack $_repack_flags");
}
- return $commit;
}
sub set_commit_env {
}
sub check_upgrade_needed {
+ if (!-r $REVDB) {
+ open my $fh, '>>',$REVDB or croak $!;
+ close $fh;
+ }
my $old = eval {
my $pid = open my $child, '-|';
defined $pid or croak $!;
}
}
+sub migrate_revdb {
+ git_svn_each(sub {
+ my $id = shift;
+ defined(my $pid = fork) or croak $!;
+ if (!$pid) {
+ $GIT_SVN = $ENV{GIT_SVN_ID} = $id;
+ init_vars();
+ exit 0 if -r $REVDB;
+ print "Upgrading svn => git mapping...\n";
+ open my $fh, '>>',$REVDB or croak $!;
+ close $fh;
+ rebuild();
+ print "Done upgrading. You may now delete the ",
+ "deprecated $GIT_SVN_DIR/revs directory\n";
+ exit 0;
+ }
+ waitpid $pid, 0;
+ croak $? if $?;
+ });
+}
+
sub migration_check {
+ migrate_revdb() unless (-e $REVDB);
return if (-d "$GIT_DIR/svn" || !-d $GIT_DIR);
print "Upgrading repository...\n";
unless (-d "$GIT_DIR/svn") {
my $dn = dirname("$GIT_DIR/svn/$x");
mkpath([$dn]) unless -d $dn;
rename "$GIT_DIR/$x", "$GIT_DIR/svn/$x" or croak "$!: $x";
- my ($url, $path) = repo_path_split($u);
- s_to_file($url, "$GIT_DIR/svn/$x/info/repo_url");
- s_to_file($path, "$GIT_DIR/svn/$x/info/repo_path");
}
+ migrate_revdb() if (-d $GIT_SVN_DIR && !-w $REVDB);
print "Done upgrading.\n";
}
sub find_rev_before {
- my ($r, $git_svn_id) = @_;
- my @revs = map { basename $_ } <$GIT_DIR/svn/$git_svn_id/revs/*>;
- foreach my $r0 (sort { $b <=> $a } @revs) {
- next if $r0 >= $r;
- return ($r0, file_to_s("$GIT_DIR/svn/$git_svn_id/revs/$r0"));
+ my ($r, $id, $eq_ok) = @_;
+ my $f = "$GIT_DIR/svn/$id/.rev_db";
+ return (undef,undef) unless -r $f;
+ --$r unless $eq_ok;
+ while ($r > 0) {
+ if (my $c = revdb_get($f, $r)) {
+ return ($r, $c);
+ }
+ --$r;
}
return (undef, undef);
}
sub init_vars {
$GIT_SVN ||= $ENV{GIT_SVN_ID} || 'git-svn';
$GIT_SVN_DIR = "$GIT_DIR/svn/$GIT_SVN";
+ $REVDB = "$GIT_SVN_DIR/.rev_db";
$GIT_SVN_INDEX = "$GIT_SVN_DIR/index";
$SVN_URL = undef;
- $REV_DIR = "$GIT_SVN_DIR/revs";
$SVN_WC = "$GIT_SVN_DIR/tree";
}
if (defined $_repack) {
$_repack = 1000 if ($_repack <= 0);
$_repack_nr = $_repack;
- $_repack_flags ||= '';
+ $_repack_flags ||= '-d';
}
}
sub read_url_paths {
my $l_map = {};
git_svn_each(sub { my $x = shift;
- my $u = file_to_s("$GIT_DIR/svn/$x/info/repo_url");
- my $p = file_to_s("$GIT_DIR/svn/$x/info/repo_path");
- # we hate trailing slashes
- if ($u =~ s#(?:^\/+|\/+$)##g) {
- s_to_file($u,"$GIT_DIR/svn/$x/info/repo_url");
- }
- if ($p =~ s#(?:^\/+|\/+$)##g) {
- s_to_file($p,"$GIT_DIR/svn/$x/info/repo_path");
- }
+ my $url = file_to_s("$GIT_DIR/svn/$x/info/url");
+ my ($u, $p) = repo_path_split($url);
$l_map->{$u}->{$p} = $x;
});
return $l_map;
sub get_author_info {
my ($dest, $author, $t, $tz) = @_;
$author =~ s/(?:^\s*|\s*$)//g;
+ $dest->{a_raw} = $author;
my $_a;
if ($_authors) {
$_a = $rusers{$author} || undef;
my $p = $f;
return unless ($p =~ s#^\Q$SVN_PATH\E/?##);
- my $fd = IO::File->new_tmpfile or croak $!;
+ my ($hash, $pid, $in, $out);
my $pool = SVN::Pool->new;
- my ($r, $props) = $SVN->get_file($f, $rev, $fd, $pool);
+ defined($pid = open3($in, $out, '>&STDERR',
+ qw/git-hash-object -w --stdin/)) or croak $!;
+ my ($r, $props) = $SVN->get_file($f, $rev, $in, $pool);
+ $in->flush == 0 or croak $!;
+ close $in or croak $!;
$pool->clear;
- $fd->flush == 0 or croak $!;
- seek $fd, 0, 0 or croak $!;
- if (my $es = $props->{'svn:eol-style'}) {
- my $new_fd = IO::File->new_tmpfile or croak $!;
- eol_cp_fd($fd, $new_fd, $es);
- close $fd or croak $!;
- $fd = $new_fd;
- seek $fd, 0, 0 or croak $!;
- $fd->flush == 0 or croak $!;
- }
- my $mode = '100644';
- if (exists $props->{'svn:executable'}) {
- $mode = '100755';
- }
+ chomp($hash = do { local $/; <$out> });
+ close $out or croak $!;
+ waitpid $pid, 0;
+ $hash =~ /^$sha1$/o or die "not a sha1: $hash\n";
+
+ my $mode = exists $props->{'svn:executable'} ? '100755' : '100644';
if (exists $props->{'svn:special'}) {
$mode = '120000';
- local $/;
- my $link = <$fd>;
+ my $link = `git-cat-file blob $hash`;
$link =~ s/^link // or die "svn:special file with contents: <",
$link, "> is not understood\n";
- seek $fd, 0, 0 or croak $!;
- truncate $fd, 0 or croak $!;
- print $fd $link or croak $!;
- seek $fd, 0, 0 or croak $!;
- $fd->flush == 0 or croak $!;
- }
- my $pid = open my $ho, '-|';
- defined $pid or croak $!;
- if (!$pid) {
- open STDIN, '<&', $fd or croak $!;
- exec qw/git-hash-object -w --stdin/ or croak $!;
+ defined($pid = open3($in, $out, '>&STDERR',
+ qw/git-hash-object -w --stdin/)) or croak $!;
+ print $in $link;
+ $in->flush == 0 or croak $!;
+ close $in or croak $!;
+ chomp($hash = do { local $/; <$out> });
+ close $out or croak $!;
+ waitpid $pid, 0;
+ $hash =~ /^$sha1$/o or die "not a sha1: $hash\n";
}
- chomp(my $hash = do { local $/; <$ho> });
- close $ho or croak $?;
- $hash =~ /^$sha1$/o or die "not a sha1: $hash\n";
print $gui $mode,' ',$hash,"\t",$p,"\0" or croak $!;
- close $fd or croak $!;
}
sub libsvn_log_entry {
while (<$ls>) {
print $gui '0 ',0 x 40,"\t",$_ or croak $!;
}
- close $ls or croak $!;
+ close $ls or croak $?;
} else {
print $gui '0 ',0 x 40,"\t",$f,"\0" or croak $!;
}
$pool->clear;
}
libsvn_get_file($gui, $_, $rev) foreach (@amr);
- close $gui or croak $!;
+ close $gui or croak $?;
return libsvn_log_entry($rev, $author, $date, $msg, [$last_commit]);
}
close $fh;
if (defined $c && length $c) {
my ($url, $rev, $uuid) = extract_metadata((grep(/^git-svn-id: /,
- safe_qx(qw/git-cat-file commit/, $c)))[0]);
+ safe_qx(qw/git-cat-file commit/, $c)))[-1]);
return ($rev, $c);
}
return (undef, undef);
$pool->clear;
}
-sub libsvn_new_tree {
+sub revisions_eq {
+ my ($path, $r0, $r1) = @_;
+ return 1 if $r0 == $r1;
+ my $nr = 0;
+ if ($_use_lib) {
+ # should be OK to use Pool here (r1 - r0) should be small
+ my $pool = SVN::Pool->new;
+ $SVN->get_log("/$path", $r0, $r1, 0, 1, 1, sub {$nr++},$pool);
+ $pool->clear;
+ } else {
+ my ($url, undef) = repo_path_split($SVN_URL);
+ my $svn_log = svn_log_raw("$url/$path","-r$r0:$r1");
+ while (next_log_entry($svn_log)) { $nr++ }
+ close $svn_log->{fh};
+ }
+ return 0 if ($nr > 1);
+ return 1;
+}
+
+sub libsvn_find_parent_branch {
my ($paths, $rev, $author, $date, $msg) = @_;
my $svn_path = '/'.$SVN_PATH;
# look for a parent from another branch:
- foreach (keys %$paths) {
- next if ($_ ne $svn_path);
- my $i = $paths->{$_};
- my $branch_from = $i->copyfrom_path or next;
- my $r = $i->copyfrom_rev;
- print STDERR "Found possible branch point: ",
- "$branch_from => $svn_path, $r\n";
- $branch_from =~ s#^/##;
- my $l_map = read_url_paths();
- my $url = $SVN->{url};
- defined $l_map->{$url} or next;
- my $id = $l_map->{$url}->{$branch_from} or next;
- my $f = "$GIT_DIR/svn/$id/revs/$r";
- while ($r && !-r $f) {
- $r--;
- $f = "$GIT_DIR/svn/$id/revs/$r";
- }
- if (-r $f) {
- my $parent = file_to_s($f);
- unlink $GIT_SVN_INDEX;
- print STDERR "Found branch parent: $parent\n";
- sys(qw/git-read-tree/, $parent);
- return libsvn_fetch($parent, $paths, $rev,
- $author, $date, $msg);
- }
- print STDERR "Nope, branch point not imported or unknown\n";
+ my $i = $paths->{$svn_path} or return;
+ my $branch_from = $i->copyfrom_path or return;
+ my $r = $i->copyfrom_rev;
+ print STDERR "Found possible branch point: ",
+ "$branch_from => $svn_path, $r\n";
+ $branch_from =~ s#^/##;
+ my $l_map = read_url_paths();
+ my $url = $SVN->{url};
+ defined $l_map->{$url} or return;
+ my $id = $l_map->{$url}->{$branch_from} or return;
+ my ($r0, $parent) = find_rev_before($r,$id,1);
+ return unless (defined $r0 && defined $parent);
+ if (revisions_eq($branch_from, $r0, $r)) {
+ unlink $GIT_SVN_INDEX;
+ print STDERR "Found branch parent: $parent\n";
+ sys(qw/git-read-tree/, $parent);
+ return libsvn_fetch($parent, $paths, $rev,
+ $author, $date, $msg);
+ }
+ print STDERR "Nope, branch point not imported or unknown\n";
+ return undef;
+}
+
+sub libsvn_new_tree {
+ if (my $log_entry = libsvn_find_parent_branch(@_)) {
+ return $log_entry;
}
+ my ($paths, $rev, $author, $date, $msg) = @_;
open my $gui, '| git-update-index -z --index-info' or croak $!;
my $pool = SVN::Pool->new;
libsvn_traverse($gui, '', $SVN_PATH, $rev, $pool);
$pool->clear;
- close $gui or croak $!;
+ close $gui or croak $?;
return libsvn_log_entry($rev, $author, $date, $msg);
}
foreach my $x (keys %$tree_paths) {
next unless ($p1 =~ /^\Q$x\E/);
my $i = $tree_paths->{$x};
- my $f = "$GIT_DIR/svn/$i/revs/$r1";
-
- return file_to_s($f) if (-r $f);
-
+ my ($r0, $parent) = find_rev_before($r1,$i,1);
+ return $parent if (defined $r0 && $r0 == $r1);
print STDERR "r$r1 of $i not imported\n";
next;
}
foreach my $x (keys %$tree_paths) {
next unless ($p0 =~ /^\Q$x\E/);
my $i = $tree_paths->{$x};
- my $f = "$GIT_DIR/svn/$i/revs/$r0";
- while ($r0 && !-r $f) {
- # could be an older revision, too...
- $r0--;
- $f = "$GIT_DIR/svn/$i/revs/$r0";
- }
- unless (-r $f) {
- print STDERR "r$r0 of $i not imported\n";
- next;
+ my ($r, $parent) = find_rev_before($r0, $i, 1);
+ if (defined $r && defined $parent && revisions_eq($x,$r,$r0)) {
+ $grafts->{$c}->{$parent} = 1;
}
- my $parent = file_to_s($f);
- $grafts->{$c}->{$parent} = 1;
}
}
sub libsvn_commit_cb {
my ($rev, $date, $committer, $c, $msg, $r_last, $cmt_last) = @_;
- if ($rev == ($r_last + 1)) {
- # optimized (avoid fetch)
+ if ($_optimize_commits && $rev == ($r_last + 1)) {
my $log = libsvn_log_entry($rev,$committer,$date,$msg);
$log->{tree} = get_tree_from_treeish($c);
my $cmt = git_commit($log, $cmt_last, $c);
exit 1;
}
} else {
- fetch_lib("$rev=$c");
+ fetch("$rev=$c");
}
}
# 175002 - http(s)://
# More codes may be discovered later...
if ($errno == 175002 || $errno == 160013) {
- print STDERR "directory non-existent\n";
return;
}
croak "Error from SVN, ($errno): ", $err->expanded_message,"\n";
};
+# Tie::File seems to be prone to offset errors if revisions get sparse,
+# it's not that fast, either. Tie::File is also not in Perl 5.6. So
+# one of my favorite modules is out :< Next up would be one of the DBM
+# modules, but I'm not sure which is most portable... So I'll just
+# go with something that's plain-text, but still capable of
+# being randomly accessed. So here's my ultra-simple fixed-width
+# database. All records are 40 characters + "\n", so it's easy to seek
+# to a revision: (41 * rev) is the byte offset.
+# A record of 40 0s denotes an empty revision.
+# And yes, it's still pretty fast (faster than Tie::File).
+sub revdb_set {
+ my ($file, $rev, $commit) = @_;
+ length $commit == 40 or croak "arg3 must be a full SHA1 hexsum\n";
+ open my $fh, '+<', $file or croak $!;
+ my $offset = $rev * 41;
+ # assume that append is the common case:
+ seek $fh, 0, 2 or croak $!;
+ my $pos = tell $fh;
+ if ($pos < $offset) {
+ print $fh (('0' x 40),"\n") x (($offset - $pos) / 41);
+ }
+ seek $fh, $offset, 0 or croak $!;
+ print $fh $commit,"\n";
+ close $fh or croak $!;
+}
+
+sub revdb_get {
+ my ($file, $rev) = @_;
+ my $ret;
+ my $offset = $rev * 41;
+ open my $fh, '<', $file or croak $!;
+ seek $fh, $offset, 0;
+ if (tell $fh == $offset) {
+ $ret = readline $fh;
+ if (defined $ret) {
+ chomp $ret;
+ $ret = undef if ($ret =~ /^0{40}$/);
+ }
+ }
+ close $fh or croak $!;
+ return $ret;
+}
+
package SVN::Git::Editor;
use vars qw/@ISA/;
use strict;
projects / git.git / blobdiff