[PATCH] [TopGit] Check for pre-commit hook existence.

[Russell Steicke <russellsteicke@gmail.com>]

Running tg in a repo without an active pre-commit hook fails
saying

  grep: .git/hooks/pre-commit: No such file or directory
  cat: .git/hooks/pre-commit: No such file or directory

Even "tg help" does this!  So add extra checks for existence
of the pre-commit hook.

---
 tg.sh |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/tg.sh b/tg.sh
index 56c5709..15005db 100644
--- a/tg.sh
+++ b/tg.sh
@@ -21,9 +21,11 @@ die()
 setup_hook()
 {
 	hook_call="\"\$(tg --hooks-path)\"/$1 \"\$@\""
-	if fgrep -q "$hook_call" "$git_dir/hooks/$1"; then
-		# Another job well done!
-		return
+	if [ -x "$git_dir/hooks/$1" ]; then
+		if fgrep -q "$hook_call" "$git_dir/hooks/$1"; then
+			# Another job well done!
+			return
+		fi
 	fi
 	# Prepare incanation
 	if [ -x "$git_dir/hooks/$1" ]; then
@@ -35,7 +37,7 @@ setup_hook()
 	{
 		echo "#!/bin/sh"
 		echo "$hook_call"
-		cat "$git_dir/hooks/$1"
+		[ -x "$git_dir/hooks/$1" ] && cat "$git_dir/hooks/$1"
 	} >"$git_dir/hooks/$1+"
 	chmod a+x "$git_dir/hooks/$1+"
 	mv "$git_dir/hooks/$1+" "$git_dir/hooks/$1"
-- 
1.6.0.rc1


-- 
Russell Steicke

-- Fortune says:
I got the bill for my surgery.  Now I know what those doctors were
wearing masks for.
		-- James Boren