[PATCH] Improve git bisect error message

From: Andi Kleen <andi@firstfloor.org>
Date: Apr 26, 2008, 13:39 UTC
Message-ID: <20080426133937.GA27677@basil.nowhere.org>

It took me some time to figure out what this error message meant and how to fix the problem. So let's improve it a little.

-Andi

--- git-1.5.4/git-bisect~ 2008-02-09 13:37:16.000000000 +0100 +++ git-1.5.4/git-bisect 2008-04-26 01:26:19.000000000 +0200

@@ -71,7 +71,10 @@
 		git checkout $branch || exit
 		;;
 	refs/heads/*)
-		[ -s "$GIT_DIR/head-name" ] && die "won't bisect on seeked tree"
+		if [ -s "$GIT_DIR/head-name" ] ; then
+			echo >&2 "Please run git bisect reset"
+			die "won't bisect on seeked tree"
+		fi
 		echo "${head#refs/heads/}" >"$GIT_DIR/head-name"
 		;;
 	*)