[PATCH 3/4] clone: bsd shell portability fix

[Jeff King <peff@peff.net>]

When using /bin/sh from FreeBSD 6.1, the value of $? is lost
when calling a function inside the 'trap' action. This
resulted in clone erroneously indicating success when it
should have reported failure.

As a workaround, we save the value of $? before calling any
functions.

Signed-off-by: Jeff King <peff@peff.net>
---
 git-clone.sh |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/git-clone.sh b/git-clone.sh
index 9d88d1c..547228e 100755
--- a/git-clone.sh
+++ b/git-clone.sh
@@ -240,7 +240,6 @@ die "working tree '$GIT_WORK_TREE' already exists."
 D=
 W=
 cleanup() {
-	err=$?
 	test -z "$D" && rm -rf "$dir"
 	test -z "$W" && test -n "$GIT_WORK_TREE" && rm -rf "$GIT_WORK_TREE"
 	cd ..
@@ -248,7 +247,7 @@ cleanup() {
 	test -n "$W" && rm -rf "$W"
 	exit $err
 }
-trap cleanup 0
+trap 'err=$?; cleanup' 0
 mkdir -p "$dir" && D=$(cd "$dir" && pwd) || usage
 test -n "$GIT_WORK_TREE" && mkdir -p "$GIT_WORK_TREE" &&
 W=$(cd "$GIT_WORK_TREE" && pwd) && GIT_WORK_TREE="$W" && export GIT_WORK_TREE
-- 
1.5.5.1.296.gf618c