Re: [RFC/PATCH] handle_alias: provide GIT_CWD to !alias

[Michael J Gruber <git@drmicha.warpmail.net>]

Nguyen Thai Ngoc Duy venit, vidit, dixit 13.04.2011 15:12:
> On Wed, Apr 13, 2011 at 8:05 PM, Michael J Gruber
> <git@drmicha.warpmail.net> wrote:
>> -                       ret = run_command_v_opt(alias_argv, RUN_USING_SHELL);
>> +                       strbuf_addstr(&sb, "GIT_CWD=");
>> +                       if (subdir)
>> +                               strbuf_addstr(&sb, subdir);
>> +                       env[0] = sb.buf;
>> +                       env[1] = NULL;
>> +                       ret = run_command_v_opt_cd_env(alias_argv, RUN_USING_SHELL, NULL, env);
>> +                       strbuf_release(&sb);
>>                        if (ret >= 0)   /* normal exit */
>>                                exit(ret);
> 
> subdir can be NULL. I'm not sure if it can be empty string though. May

I'm pretty sure that my "if (subdir)" would catch that...

> need a check and set it to '.' so "cd $GIT_CWD" does not go back to
> $HOME.

Well, with the current implementation you get empty or the subdir so
that you can easily "test -n $GIT_CWD". If you want to cd around you can
do "cd ./$GIT_CWD" unconditionally. I think this is more useful than
having a "." there.

Michael