contrib: add 'git difftool' for launching common merge tools

diff --git a/git-cvsserver.perl b/git-cvsserver.perl
index e5ba57f3946cc5f38cd25bfd0b52ff6ac2209c5b..fef7faf33947a87ded0e8a2d9fd6f1af6047d951 100755 (executable)
--- a/git-cvsserver.perl
+++ b/git-cvsserver.perl
@@ -801,6 +801,18 @@ sub req_co
 
     argsplit("co");
 
+    # Provide list of modules, if -c was used.
+    if (exists $state->{opt}{c}) {
+        my $showref = `git show-ref --heads`;
+        for my $line (split '\n', $showref) {
+            if ( $line =~ m% refs/heads/(.*)$% ) {
+                print "M $1\t$1\n";
+            }
+        }
+        print "ok\n";
+        return 1;
+    }
+
     my $module = $state->{args}[0];
     $state->{module} = $module;
     my $checkout_path = $module;
@@ -947,21 +959,15 @@ sub req_update
     # projects (heads in this case) to checkout.
     #
     if ($state->{module} eq '') {
-       my $heads_dir = $state->{CVSROOT} . '/refs/heads';
-       if (!opendir HEADS, $heads_dir) {
-           print "E [server aborted]: Failed to open directory, "
-             . "$heads_dir: $!\nerror\n";
-           return 0;
-       }
+        my $showref = `git show-ref --heads`;
         print "E cvs update: Updating .\n";
-       while (my $head = readdir(HEADS)) {
-           if (-f $state->{CVSROOT} . '/refs/heads/' . $head) {
-               print "E cvs update: New directory `$head'\n";
-           }
-       }
-       closedir HEADS;
-       print "ok\n";
-       return 1;
+        for my $line (split '\n', $showref) {
+            if ( $line =~ m% refs/heads/(.*)$% ) {
+                print "E cvs update: New directory `$1'\n";
+            }
+        }
+        print "ok\n";
+        return 1;
     }
 
 
@@ -1352,7 +1358,13 @@ sub req_ci
     # write our commit message out if we have one ...
     my ( $msg_fh, $msg_filename ) = tempfile( DIR => $TEMP_DIR );
     print $msg_fh $state->{opt}{m};# if ( exists ( $state->{opt}{m} ) );
-    print $msg_fh "\n\nvia git-CVS emulator\n";
+    if ( defined ( $cfg->{gitcvs}{commitmsgannotation} ) ) {
+        if ($cfg->{gitcvs}{commitmsgannotation} !~ /^\s*$/ ) {
+            print $msg_fh "\n\n".$cfg->{gitcvs}{commitmsgannotation}."\n"
+        }
+    } else {
+        print $msg_fh "\n\nvia git-CVS emulator\n";
+    }
     close $msg_fh;
 
     my $commithash = `git-commit-tree $treehash -p $parenthash < $msg_filename`;
@@ -2521,12 +2533,18 @@ sub open_blob_or_die
     return $fh;
 }
 
-# Generate a CVS author name from Git author information, by taking
-# the first eight characters of the user part of the email address.
+# Generate a CVS author name from Git author information, by taking the local
+# part of the email address and replacing characters not in the Portable
+# Filename Character Set (see IEEE Std 1003.1-2001, 3.276) by underscores. CVS
+# Login names are Unix login names, which should be restricted to this
+# character set.
 sub cvs_author
 {
     my $author_line = shift;
-    (my $author) = $author_line =~ /<([^>@]{1,8})/;
+    (my $author) = $author_line =~ /<([^@>]*)/;
+
+    $author =~ s/[^-a-zA-Z0-9_.]/_/g;
+    $author =~ s/^-/_/;
 
     $author;
 }