git-svn: allow the mergeinfo property to be set

As a first step towards preserving merges across dcommit, we need a
mechanism to update the svn:mergeinfo property.

[ew: fixed bashism and style issues in test case]

Signed-off-by: Steven Walter <stevenrwalter@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>

diff --git a/git-svn.perl b/git-svn.perl
index 757de82161e05b9d12c489efeff05c7fec341fe4..177dd259cd53cde017d73db5ccbecc7ed7dfa573 100755 (executable)
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -84,7 +84,7 @@ BEGIN
        $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
        $_merge, $_strategy, $_dry_run, $_local,
        $_prefix, $_no_checkout, $_url, $_verbose,
-       $_git_format, $_commit_url, $_tag);
+       $_git_format, $_commit_url, $_tag, $_merge_info);
 $Git::SVN::_follow_parent = 1;
 $_q ||= 0;
 my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
@@ -154,6 +154,7 @@ BEGIN
                          'commit-url=s' => \$_commit_url,
                          'revision|r=i' => \$_revision,
                          'no-rebase' => \$_no_rebase,
+                         'mergeinfo=s' => \$_merge_info,
                        %cmt_opts, %fc_opts } ],
        branch => [ \&cmd_branch,
                    'Create a branch in the SVN repository',
@@ -569,6 +570,7 @@ sub cmd_dcommit {
                                               print "Committed r$_[0]\n";
                                               $cmt_rev = $_[0];
                                        },
+                                       mergeinfo => $_merge_info,
                                        svn_path => '');
                        if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
                                print "No changes\n$d~1 == $d\n";
@@ -4451,6 +4453,7 @@ sub new {
        $self->{path_prefix} = length $self->{svn_path} ?
                               "$self->{svn_path}/" : '';
        $self->{config} = $opts->{config};
+       $self->{mergeinfo} = $opts->{mergeinfo};
        return $self;
 }
 
@@ -4760,6 +4763,11 @@ sub change_file_prop {
        $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
 }
 
+sub change_dir_prop {
+       my ($self, $pbat, $pname, $pval) = @_;
+       $self->SUPER::change_dir_prop($pbat, $pname, $pval, $self->{pool});
+}
+
 sub _chg_file_get_blob ($$$$) {
        my ($self, $fbat, $m, $which) = @_;
        my $fh = $::_repository->temp_acquire("git_blob_$which");
@@ -4853,6 +4861,11 @@ sub apply_diff {
                        fatal("Invalid change type: $f");
                }
        }
+
+       if (defined($self->{mergeinfo})) {
+               $self->change_dir_prop($self->{bat}{''}, "svn:mergeinfo",
+                                      $self->{mergeinfo});
+       }
        $self->rmdirs if $_rmdir;
        if (@$mods == 0) {
                $self->abort_edit;

diff --git a/t/t9158-git-svn-mergeinfo.sh b/t/t9158-git-svn-mergeinfo.sh
new file mode 100644 (file)
index 0000000..3ab4390
--- /dev/null
+++ b/t/t9158-git-svn-mergeinfo.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+#
+# Copyright (c) 2010 Steven Walter
+#
+
+test_description='git svn mergeinfo propagation'
+
+. ./lib-git-svn.sh
+
+say 'define NO_SVN_TESTS to skip git svn tests'
+
+test_expect_success 'initialize source svn repo' '
+       svn_cmd mkdir -m x "$svnrepo"/trunk &&
+       svn_cmd co "$svnrepo"/trunk "$SVN_TREE" &&
+       (
+               cd "$SVN_TREE" &&
+               touch foo &&
+               svn_cmd add foo &&
+               svn_cmd commit -m "initial commit"
+       ) &&
+       rm -rf "$SVN_TREE"
+'
+
+test_expect_success 'clone svn repo' '
+       git svn init "$svnrepo"/trunk &&
+       git svn fetch
+'
+
+test_expect_success 'change svn:mergeinfo' '
+       touch bar &&
+       git add bar &&
+       git commit -m "bar" &&
+       git svn dcommit --mergeinfo="/branches/foo:1-10"
+'
+
+test_expect_success 'verify svn:mergeinfo' '
+       mergeinfo=$(svn_cmd propget svn:mergeinfo "$svnrepo"/trunk)
+       test "$mergeinfo" = "/branches/foo:1-10"
+'
+
+test_done