Function cmd_main

git.c:918–1012

}

int cmd_main(int argc, const char **argv)
{
	struct strvec args = STRVEC_INIT;
	const char *cmd;
	int done_help = 0;

	cmd = argv[0];
	if (!cmd)
		cmd = "git-help";
	else {
		const char *slash = find_last_dir_sep(cmd);
		if (slash)
			cmd = slash + 1;
	}

	trace_command_performance(argv);

	/*
	 * "git-xxxx" is the same as "git xxxx", but we obviously:
	 *
	 *  - cannot take flags in between the "git" and the "xxxx".
	 *  - cannot execute it externally (since it would just do
	 *    the same thing over again)
	 *
	 * So we just directly call the builtin handler, and die if
	 * that one cannot handle it.
	 */
	if (skip_prefix(cmd, "git-", &cmd)) {
		strvec_push(&args, cmd);
		strvec_pushv(&args, argv + 1);
		handle_builtin(&args);
		strvec_clear(&args);
		die(_("cannot handle %s as a builtin"), cmd);
	}

	/* Look for flags.. */
	argv++;
	argc--;
	handle_options(&argv, &argc, NULL);

	if (!argc) {
		/* The user didn't specify a command; give them help */
		commit_pager_choice();
		printf(_("usage: %s\n\n"), git_usage_string);
		list_common_cmds_help();
		printf("\n%s\n", _(git_more_info_string));
		exit(1);
	}

	if (!strcmp("--version", argv[0]) || !strcmp("-v", argv[0]))
		argv[0] = "version";
	else if (!strcmp("--help", argv[0]) || !strcmp("-h", argv[0]))
		argv[0] = "help";

	cmd = argv[0];

	/*
	 * We use PATH to find git commands, but we prepend some higher