Merge branch 'lt/maint-wrap-zlib'

[git.git] / git.c

diff --git a/git.c b/git.c
index a53e24feae183b77986947f9b120a02bc1c18113..ecc8fad09aebd16410f2736458d60e04f9dfb296 100644 (file)
--- a/git.c
+++ b/git.c
@@ -416,12 +416,34 @@ static void execv_dashed_external(const char **argv)
        strbuf_release(&cmd);
 }
 
+static int run_argv(int *argcp, const char ***argv)
+{
+       int done_alias = 0;
+
+       while (1) {
+               /* See if it's an internal command */
+               handle_internal_command(*argcp, *argv);
+
+               /* .. then try the external ones */
+               execv_dashed_external(*argv);
+
+               /* It could be an alias -- this works around the insanity
+                * of overriding "git log" with "git show" by having
+                * alias.log = show
+                */
+               if (done_alias || !handle_alias(argcp, argv))
+                       break;
+               done_alias = 1;
+       }
+
+       return done_alias;
+}
+
 
 int main(int argc, const char **argv)
 {
        const char *cmd = argv[0] && *argv[0] ? argv[0] : "git-help";
        char *slash = (char *)cmd + strlen(cmd);
-       int done_alias = 0;
 
        /*
         * Take the basename of argv[0] as the command
@@ -479,31 +501,22 @@ int main(int argc, const char **argv)
        setup_path();
 
        while (1) {
-               /* See if it's an internal command */
-               handle_internal_command(argc, argv);
-
-               /* .. then try the external ones */
-               execv_dashed_external(argv);
-
-               /* It could be an alias -- this works around the insanity
-                * of overriding "git log" with "git show" by having
-                * alias.log = show
-                */
-               if (done_alias || !handle_alias(&argc, &argv))
+               static int done_help = 0;
+               static int was_alias = 0;
+               was_alias = run_argv(&argc, &argv);
+               if (errno != ENOENT)
                        break;
-               done_alias = 1;
-       }
-
-       if (errno == ENOENT) {
-               if (done_alias) {
+               if (was_alias) {
                        fprintf(stderr, "Expansion of alias '%s' failed; "
                                "'%s' is not a git-command\n",
                                cmd, argv[0]);
                        exit(1);
                }
-               argv[0] = help_unknown_cmd(cmd);
-               handle_internal_command(argc, argv);
-               execv_dashed_external(argv);
+               if (!done_help) {
+                       cmd = argv[0] = help_unknown_cmd(cmd);
+                       done_help = 1;
+               } else
+                       break;
        }
 
        fprintf(stderr, "Failed to run command '%s': %s\n",