Make git-pull complain and give advice when there is nothing to merge with

diff --git a/builtin-config.c b/builtin-config.c
index 7d2063c1d2e9564306bb2807548f28a067ccdb88..0a605e01aca6e1ab91fcfecd3929b8a853ff9f3d 100644 (file)
--- a/builtin-config.c
+++ b/builtin-config.c
@@ -2,7 +2,7 @@
 #include "cache.h"
 
 static const char git_config_set_usage[] =
-"git-config [ --global | --system ] [ --bool | --int ] [ -z | --null ] [--get | --get-all | --get-regexp | --replace-all | --add | --unset | --unset-all] name [value [value_regex]] | --rename-section old_name new_name | --remove-section name | --list";
+"git-config [ --global | --system | [ -f | --file ] config-file ] [ --bool | --int ] [ -z | --null ] [--get | --get-all | --get-regexp | --replace-all | --add | --unset | --unset-all] name [value [value_regex]] | --rename-section old_name new_name | --remove-section name | --list";
 
 static char *key;
 static regex_t *key_regexp;
@@ -186,6 +186,13 @@ int cmd_config(int argc, const char **argv, const char *prefix)
                }
                else if (!strcmp(argv[1], "--system"))
                        setenv(CONFIG_ENVIRONMENT, ETC_GITCONFIG, 1);
+               else if (!strcmp(argv[1], "--file") || !strcmp(argv[1], "-f")) {
+                       if (argc < 3)
+                               usage(git_config_set_usage);
+                       setenv(CONFIG_ENVIRONMENT, argv[2], 1);
+                       argc--;
+                       argv++;
+               }
                else if (!strcmp(argv[1], "--null") || !strcmp(argv[1], "-z")) {
                        term = '\0';
                        delim = '\n';