From b134922992e3051e7095b1e76a89361fea86206d Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@osdl.org>
Date: Tue, 26 Jul 2005 20:04:22 -0700
Subject: [PATCH] git-log: make sure we have some commit to start from.

When no usable head/tag is specified, git log barfed with
underlying error message from rev-list, which was not helpful.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
 git-log-script | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/git-log-script b/git-log-script
index 049d02ea1..24d1e8394 100755
--- a/git-log-script
+++ b/git-log-script
@@ -1,3 +1,5 @@
 #!/bin/sh
 . git-sh-setup-script || die "Not a git archive"
+revs=$(git-rev-parse --revs-only --default HEAD "$@")
+[ "$revs" ] || die "No HEAD ref"
 git-rev-list --pretty $(git-rev-parse --default HEAD "$@") | LESS=-S ${PAGER:-less}
-- 
2.26.2