Function cmd_main

shell.c:161–231

};

int cmd_main(int argc, const char **argv)
{
	char *prog;
	const char **user_argv;
	struct commands *cmd;
	int count;

	/*
	 * Special hack to pretend to be a CVS server
	 */
	if (argc == 2 && !strcmp(argv[1], "cvs server")) {
		argv--;
	} else if (argc == 1) {
		/* Allow the user to run an interactive shell */
		cd_to_homedir();
		if (access(COMMAND_DIR, R_OK | X_OK) == -1) {
			die("Interactive git shell is not enabled.\n"
			    "hint: ~/" COMMAND_DIR " should exist "
			    "and have read and execute access.");
		}
		run_shell();
		exit(0);
	} else if (argc != 3 || strcmp(argv[1], "-c")) {
		/*
		 * We do not accept any other modes except "-c" followed by
		 * "cmd arg", where "cmd" is a very limited subset of git
		 * commands or a command in the COMMAND_DIR
		 */
		die("Run with no arguments or with -c cmd");
	}

	prog = xstrdup(argv[2]);
	if (!strncmp(prog, "git", 3) && isspace(prog[3]))
		/* Accept "git foo" as if the caller said "git-foo". */
		prog[3] = '-';

	for (cmd = cmd_list ; cmd->name ; cmd++) {
		int len = strlen(cmd->name);
		char *arg;
		if (strncmp(cmd->name, prog, len))
			continue;
		arg = NULL;
		switch (prog[len]) {
		case '\0':
			arg = NULL;
			break;
		case ' ':
			arg = prog + len + 1;
			break;
		default:
			continue;
		}
		return cmd->exec(cmd->name, arg);
	}

	cd_to_homedir();
	count = split_cmdline(prog, &user_argv);
	if (count >= 0) {