[PATCH 1/2] filter-branch: only print usage information when no arguments supplied

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Testing for whether command line arguments were supplied was being
performed during option parsing. This had the side effect of
printing usage information when a more appropriate error message
would have been printed had the script been allowed to continue.

Now this:

	git filter-branch

will print usage information.

And these:

	git filter-branch -d /tmp/work-dir
	git filter-branch <non-existant-revision>
	git filter-branch --
	git filter-branch -- <non-existant-revision>

will print a message informing the user that filter-branch did
not know which reference to rewrite. Without this patch the
one with '-d' would also print usage information.

Signed-off-by: Brandon Casey <casey@xxxxxxxxxxxxxxx>
---


I prefer my original patch since I think it is consistent
with the git interface.

-brandon


 git-filter-branch.sh |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/git-filter-branch.sh b/git-filter-branch.sh
index ebf05ca..5e3fe70 100755
--- a/git-filter-branch.sh
+++ b/git-filter-branch.sh
@@ -97,6 +97,8 @@ USAGE="[--env-filter <command>] [--tree-filter <command>] \
 OPTIONS_SPEC=
 . git-sh-setup
 
+test $# = 0 && usage
+
 git diff-files --quiet &&
 	git diff-index --cached --quiet HEAD -- ||
 	die "Cannot rewrite branch(es) with a dirty working directory."
@@ -114,7 +116,6 @@ orig_namespace=refs/original/
 force=
 while :
 do
-	test $# = 0 && usage
 	case "$1" in
 	--)
 		shift
-- 
1.5.4.rc5.14.gaa8fc

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