[PATCH] Print a sane error message if an alias expands to an invalid git command

From: Theodore Ts'o <tytso@mit.edu>
To: Junio C Hamano <junkio@cox.net>
Cc: git@vger.kernel.org, Theodore Ts'o <tytso@mit.edu>
Subject: [PATCH] Print a sane error message if an alias expands to an invalid git command
Date: Sat, 10 Feb 2007 11:05:03 -0500	[thread overview]
Message-ID: <11711235041527-git-send-email-tytso@mit.edu> (raw)
In-Reply-To: <1171123504783-git-send-email-tytso@mit.edu>

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 git.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/git.c b/git.c
index 82a8357..c43d4ff 100644
--- a/git.c
+++ b/git.c
@@ -387,8 +387,15 @@ int main(int argc, const char **argv, char **envp)
 		done_alias = 1;
 	}
 
-	if (errno == ENOENT)
+	if (errno == ENOENT) {
+		if (done_alias) {
+			fprintf(stderr, "Expansion of alias '%s' failed; "
+				"'%s' is not a git-command\n",
+				cmd, argv[0]);
+			exit(1);
+		}
 		help_unknown_cmd(cmd);
+	}
 
 	fprintf(stderr, "Failed to run command '%s': %s\n",
 		cmd, strerror(errno));
-- 
1.5.0.rc4
