From 5a2df368c26e4a993db9d09f221af1063d0fe9a8 Mon Sep 17 00:00:00 2001
From: Michael J Gruber <git@drmicha.warpmail.net>
Date: Tue, 17 May 2011 17:38:53 +0200
Subject: [PATCH] config: Give error message when not changing a multivar
When trying to set a multivar with "git config var value", "git config"
issues
warning: remote.repoor.push has multiple values
leaving the user under the impression that the operation succeeded,
unless one checks the return value.
Instead, make it
warning: remote.repoor.push has multiple values
error: cannot overwrite multiple values with a single value
Use a regexp, --add or --set-all to change remote.repoor.push.
to be clear and helpful.
Note: The "warning" is raised through other code paths also so that it
needs to remain a warning for these (which do not raise the error). Only
the caller can determine how to go on from that.
Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
builtin/config.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/builtin/config.c b/builtin/config.c
index 3e3c5284977..211e118d575 100644
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -436,9 +436,14 @@ int cmd_config(int argc, const char **argv, const char *prefix)
NULL, NULL);
}
else if (actions == ACTION_SET) {
+ int ret;
check_argc(argc, 2, 2);
value = normalize_value(argv[0], argv[1]);
- return git_config_set(argv[0], value);
+ ret = git_config_set(argv[0], value);
+ if (ret == CONFIG_NOTHING_SET)
+ error("cannot overwrite multiple values with a single value\n"
+ " Use a regexp, --add or --set-all to change %s.", argv[0]);
+ return ret;
}
else if (actions == ACTION_SET_ALL) {
check_argc(argc, 2, 3);