Add "git show-ref" builtin command

diff --git a/git-cvsexportcommit.perl b/git-cvsexportcommit.perl
index 5d13a54194d23ceaa50bc52a4f192156898d661a..99b3dc392afdd5ffb3e2aa8f6fe6b484c2e2f1fe 100755 (executable)
--- a/git-cvsexportcommit.perl
+++ b/git-cvsexportcommit.perl
@@ -16,9 +16,9 @@
     die "GIT_DIR is not defined or is unreadable";
 }
 
-our ($opt_h, $opt_p, $opt_v, $opt_c, $opt_f, $opt_m );
+our ($opt_h, $opt_p, $opt_v, $opt_c, $opt_f, $opt_a, $opt_m );
 
-getopts('hpvcfm:');
+getopts('hpvcfam:');
 
 $opt_h && usage();
 
@@ -29,7 +29,6 @@
                                     TMPDIR => 1,
                                     CLEANUP => 1);
 
-print Dumper(@ARGV);
 # resolve target commit
 my $commit;
 $commit = pop @ARGV;
@@ -53,12 +52,32 @@
 # find parents from the commit itself
 my @commit  = safe_pipe_capture('git-cat-file', 'commit', $commit);
 my @parents;
-foreach my $p (@commit) {
-    if ($p =~ m/^$/) { # end of commit headers, we're done
-       last;
+my $committer;
+my $author;
+my $stage = 'headers'; # headers, msg
+my $title;
+my $msg = '';
+
+foreach my $line (@commit) {
+    chomp $line;
+    if ($stage eq 'headers' && $line eq '') {
+       $stage = 'msg';
+       next;
     }
-    if ($p =~ m/^parent (\w{40})$/) { # found a parent
-       push @parents, $1;
+
+    if ($stage eq 'headers') {
+       if ($line =~ m/^parent (\w{40})$/) { # found a parent
+           push @parents, $1;
+       } elsif ($line =~ m/^author (.+) \d+ \+\d+$/) {
+           $author = $1;
+       } elsif ($line =~ m/^committer (.+) \d+ \+\d+$/) {
+           $committer = $1;
+       }
+    } else {
+       $msg .= $line . "\n";
+       unless ($title) {
+           $title = $line;
+       }
     }
 }
 
@@ -84,12 +103,18 @@
 
 # grab the commit message
 open(MSG, ">.msg") or die "Cannot open .msg for writing";
-print MSG $opt_m;
+if ($opt_m) {
+    print MSG $opt_m;
+}
+print MSG $msg;
+if ($opt_a) {
+    print MSG "\n\nAuthor: $author\n";
+    if ($author ne $committer) {
+       print MSG "Committer: $committer\n";
+    }
+}
 close MSG;
 
-`git-cat-file commit $commit | sed -e '1,/^\$/d' >> .msg`;
-$? && die "Error extracting the commit message";
-
 my (@afiles, @dfiles, @mfiles, @dirs);
 my @files = safe_pipe_capture('git-diff-tree', '-r', $parent, $commit);
 #print @files;
@@ -233,6 +258,7 @@
 }
 
 print "Commit to CVS\n";
+print "Patch: $title\n";
 my $commitfiles = join(' ', @afiles, @mfiles, @dfiles);
 my $cmd = "cvs commit -F .msg $commitfiles";