[PATCH] git-cvsimport-script: handling of tags

This patch changes git-cvsimport-script so that it creates tag objects
instead of refs to commits, and adds an option, -u, to convert
underscores in branch and tag names to dots (since CVS doesn't allow
dots in branches and tags.)

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/Documentation/git-cvsimport-script.txt b/Documentation/git-cvsimport-script.txt
index d01a15d..9d8acfc 100644 (file)
--- a/Documentation/git-cvsimport-script.txt
+++ b/Documentation/git-cvsimport-script.txt
@@ -44,6 +44,9 @@ OPTIONS
        to avoid noisy changesets. Highly recommended, but off by default
        to preserve compatibility with early imported trees. 
 
+-u::
+       Convert underscores in tag and branch names to dots.
+
 -o <branch-for-HEAD>::
        The 'HEAD' branch from CVS is imported to the 'origin' branch within
        the git repository, as 'HEAD' already has a special meaning for git.

diff --git a/git-cvsimport-script b/git-cvsimport-script
index e3a8e58..5079c79 100755 (executable)
--- a/git-cvsimport-script
+++ b/git-cvsimport-script
@@ -24,23 +24,24 @@ use Time::Local;
 use IO::Socket;
 use IO::Pipe;
 use POSIX qw(strftime dup2);
+use IPC::Open2;
 
 $SIG{'PIPE'}="IGNORE";
 $ENV{'TZ'}="UTC";
 
-our($opt_h,$opt_o,$opt_v,$opt_k,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i,$opt_s,$opt_m,$opt_M);
+our($opt_h,$opt_o,$opt_v,$opt_k,$opt_u,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i,$opt_s,$opt_m,$opt_M);
 
 sub usage() {
        print STDERR <<END;
 Usage: ${\basename $0}     # fetch/update GIT from CVS
-       [ -o branch-for-HEAD ] [ -h ] [ -v ] [ -d CVSROOT ]
-       [ -p opts-for-cvsps ] [ -C GIT_repository ] [ -z fuzz ]
-       [ -i ] [ -k ] [-s subst] [ -m ] [ -M regex] [ CVS_module ]
+       [-o branch-for-HEAD] [-h] [-v] [-d CVSROOT]
+       [-p opts-for-cvsps] [-C GIT_repository] [-z fuzz]
+       [-i] [-k] [-u] [-s subst] [-m] [-M regex] [CVS_module]
 END
        exit(1);
 }
 
-getopts("hivmko:d:p:C:z:s:M:") or usage();
+getopts("hivmkuo:d:p:C:z:s:M:") or usage();
 usage if $opt_h;
 
 @ARGV <= 1 or usage();
@@ -628,13 +629,37 @@ my $commit = sub {
                or die "Cannot write branch $branch for update: $!\n";
 
        if($tag) {
-               open(C,">$git_dir/refs/tags/$tag")
-                       or die "Cannot create tag $tag: $!\n";
-               print C "$cid\n"
-                       or die "Cannot write tag $branch: $!\n";
+               my($in, $out) = ('','');
+               my($xtag) = $tag;
+               $xtag =~ s/\s+\*\*.*$//; # Remove stuff like ** INVALID ** and ** FUNKY **
+               $xtag =~ tr/_/\./ if ( $opt_u );
+               
+               my $pid = open2($in, $out, 'git-mktag');
+               print $out "object $cid\n".
+                   "type commit\n".
+                   "tag $xtag\n".
+                   "tagger $author <$author>\n"
+                   or die "Cannot create tag object $xtag: $!\n";
+               close($out)
+                   or die "Cannot create tag object $xtag: $!\n";
+
+               my $tagobj = <$in>;
+               chomp $tagobj;
+
+               if ( !close($in) or waitpid($pid, 0) != $pid or
+                    $? != 0 or $tagobj !~ /^[0123456789abcdef]{40}$/ ) {
+                   die "Cannot create tag object $xtag: $!\n";
+               }
+               
+
+               open(C,">$git_dir/refs/tags/$xtag")
+                       or die "Cannot create tag $xtag: $!\n";
+               print C "$tagobj\n"
+                       or die "Cannot write tag $xtag: $!\n";
                close(C)
-                       or die "Cannot write tag $branch: $!\n";
-               print "Created tag '$tag' on '$branch'\n" if $opt_v;
+                       or die "Cannot write tag $xtag: $!\n";
+
+               print "Created tag '$xtag' on '$branch'\n" if $opt_v;
        }
 };