[PATCH] cg-clone fails to clone tags

[Miguel Bazdresch <git-01@thewizardstower.org>]

Hi,

I noticed that cg-clone fails to clone tags when the source and
destination directories are on different filesystems (this is on a local
clone). The command produces warnings of the type:

cp: cannot create link `.git/refs/tags/git-pasky-0.6.2': Invalid cross-device link
`/home/miguel/bin/cogito/.git/refs/tags/git-pasky-0.6.3' -> `.git/refs/tags/git-pasky-0.6.3'

I think the culprit is the "l" flag passed to cp in fetch-local() in
script cg-pull. After thinking a bit on how to solve this, I decided on
a "blunt force" approach, where the cp is done twice, once with "l" and
once without it. Only when both fail is a warning issued about the
failure to get the tag list.

This has the unfortunate side effect of also removing the "u" flag to
cp, but I don't think it's a big deal (cg-pull adds the "l" and "u"
flags at the same time).

Following is the output of cg-mkpatch:

---

Currently, cg-clone fails to clone the tag list if the destination
and source directory are in different filesystem. This caused by the
"l" flag used by fetch_local.

This patch tries the copy without the "l" flag if it fails with it.

Signed-off-by: Miguel Bazdresch <miguelb@ieee.org>

---
commit 5823514635ca67be41914d9294081353b70272a4
tree 19092122a45366f46b7f140d411f875000ff2ba7
parent 20e473c9afd8b5d2d549b0e7881473600beb9c37
author Miguel Bazdresch <miguelb@ieee.org> Tue, 31 May 2005 20:23:44
-0500
committer Miguel Bazdresch <miguelb@ieee.org> Tue, 31 May 2005 20:23:44
-0500

 cg-pull |   10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/cg-pull b/cg-pull
--- a/cg-pull
+++ b/cg-pull
@@ -259,8 +259,16 @@ rsyncerr=
 $fetch -i -s -u -d "$uri/refs/tags" "$_git/refs/tags" || rsyncerr=1
 if [ "$rsyncerr" ]; then
 rsyncerr=
-	$fetch -i -s -u -d "$uri/tags" "$_git/refs/tags" || rsyncerr=1
+	$fetch -i -s -d "$uri/refs/tags" "$_git/refs/tags" || rsyncerr=1
 fi
+if [ "$rsyncerr" ]; then
+rsyncerr=
+	$fetch -i -s -u -d "$uri/tags" "$_git/refs/tags" || rsyncerr=1
+fi
+if [ "$rsyncerr" ]; then
+rsyncerr=
+	$fetch -i -s -d "$uri/tags" "$_git/refs/tags" || rsyncerr=1
+fi
 [ "$rsyncerr" ] && echo "unable to get tags list (non-fatal)" >&2