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Merge branch 'ew/svn'

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* ew/svn:
  git-svn: allow dcommit to retain local merge information
This commit is contained in:
Junio C Hamano
2007-07-02 01:46:22 -07:00
parent 7425dcc95e 733a65aa5d
commit 1fd81efad0
2 changed files with 152 additions and 9 deletions
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72
git-svn.perl
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@ -374,16 +374,9 @@ sub cmd_dcommit {
die "Unable to determine upstream SVN information from ",
"$head history\n";
}
my $c = $refs[-1];
my $last_rev;
foreach my $d (@refs) {
if (!verify_ref("$d~1")) {
fatal "Commit $d\n",
"has no parent commit, and therefore ",
"nothing to diff against.\n",
"You should be working from a repository ",
"originally created by git-svn\n";
}
my ($linear_refs, $parents) = linearize_history($gs, \@refs);
foreach my $d (@$linear_refs) {
unless (defined $last_rev) {
(undef, $last_rev, undef) = cmt_metadata("$d~1");
unless (defined $last_rev) {
@ -405,6 +398,9 @@ sub cmd_dcommit {
svn_path => '');
if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
print "No changes\n$d~1 == $d\n";
} elsif ($parents->{$d} && @{$parents->{$d}}) {
$gs->{inject_parents_dcommit}->{$last_rev} =
$parents->{$d};
}
}
}
@ -831,6 +827,59 @@ sub working_head_info {
(undef, undef, undef, undef);
}
sub read_commit_parents {
my ($parents, $c) = @_;
my ($fh, $ctx) = command_output_pipe(qw/cat-file commit/, $c);
while (<$fh>) {
chomp;
last if '';
/^parent ($sha1)/ or next;
push @{$parents->{$c}}, $1;
}
close $fh; # break the pipe
}
sub linearize_history {
my ($gs, $refs) = @_;
my %parents;
foreach my $c (@$refs) {
read_commit_parents(\%parents, $c);
}
my @linear_refs;
my %skip = ();
my $last_svn_commit = $gs->last_commit;
foreach my $c (reverse @$refs) {
next if $c eq $last_svn_commit;
last if $skip{$c};
unshift @linear_refs, $c;
$skip{$c} = 1;
# we only want the first parent to diff against for linear
# history, we save the rest to inject when we finalize the
# svn commit
my $fp_a = verify_ref("$c~1");
my $fp_b = shift @{$parents{$c}} if $parents{$c};
if (!$fp_a || !$fp_b) {
die "Commit $c\n",
"has no parent commit, and therefore ",
"nothing to diff against.\n",
"You should be working from a repository ",
"originally created by git-svn\n";
}
if ($fp_a ne $fp_b) {
die "$c~1 = $fp_a, however parsing commit $c ",
"revealed that:\n$c~1 = $fp_b\nBUG!\n";
}
foreach my $p (@{$parents{$c}}) {
$skip{$p} = 1;
}
}
(\@linear_refs, \%parents);
}
package Git::SVN;
use strict;
use warnings;
@ -1551,6 +1600,11 @@ sub get_commit_parents {
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};