[PATCH] Use git-for-each-ref to check whether the origin branch exists.

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From: Stephan Springl <springl-git@xxxxxxxxxxxxx>

This works in repositories that have their refs packed by
"git-pack-refs --all --prune" whereas testing the file
$git_dir/refs/heads/$opt_o does not.

Acked-by: Johannes Schindelin <Johannes.Schindelin@xxxxxx>

---

	On Wed, 23 May 2007, Stephan Springl wrote:
	
	> This helps us to use git-cvsimport on our ref-packed 
	> repositories.

	Default for ref-packed repositories is to pack only the tags, 
	therefore you usually do not need this patch. However, it looks 
	obviously correct to me. A cursory test also showed that it does 
	not break anything.

	> Maybe you want to use this or a similar solution to be 
	> integrated in stock git.
	
	Unfortunately your patch is white-space corrupted (it has an extra 
	space on all lines starting with a space, it seems). Therefore I 
	redid it with this email.

	It would be nice to follow Documentation/SubmittingPatches next 
	time. For example, I guess that you want to sign off on it...

 git-cvsimport.perl |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/git-cvsimport.perl b/git-cvsimport.perl
index ac74bc5..f68afe7 100755
--- a/git-cvsimport.perl
+++ b/git-cvsimport.perl
@@ -559,11 +559,6 @@ unless (-d $git_dir) {
 	$last_branch = $opt_o;
 	$orig_branch = "";
 } else {
-	-f "$git_dir/refs/heads/$opt_o"
-		or die "Branch '$opt_o' does not exist.\n".
-		       "Either use the correct '-o branch' option,\n".
-		       "or import to a new repository.\n";
-
 	open(F, "git-symbolic-ref HEAD |") or
 		die "Cannot run git-symbolic-ref: $!\n";
 	chomp ($last_branch = <F>);
@@ -588,6 +583,11 @@ unless (-d $git_dir) {
 		$branch_date{$head} = $1;
 	}
 	close(H);
+        if (!exists $branch_date{$opt_o}) {
+		die "Branch '$opt_o' does not exist.\n".
+		       "Either use the correct '-o branch' option,\n".
+		       "or import to a new repository.\n";
+        }
 }
 
 -d $git_dir
-- 
1.5.2.2527.ga2df

-
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