From: Nguyen Thai Ngoc Duy <pclouds@gmail.com>
Date: Mon, 17 Sep 2012 12:06:06 GMT
Subject: Re: [PATCHv4] clone --single: limit the fetch refspec to fetched branch
Message-ID: <CACsJy8Bsps_-RaXdBd9ipWPvJukjK7mRN_wG2ezEL5d4JLyx+g@mail.gmail.com>
In-Reply-To: <1347783184-20045-1-git-send-email-ralf.thielow@gmail.com>

On Sun, Sep 16, 2012 at 3:13 PM, Ralf Thielow <ralf.thielow@gmail.com> wrote:
> +       if (option_mirror || !option_bare) {
> +               strbuf_reset(&value);

I think we should use a new strbuf local variable here to avoid
resetting this. At least reviewers don't have to check if this
statememt causes any effect later on because "value"'s value is gone.

> +               if (option_single_branch) {
> +                       if (option_branch)
> +                               strbuf_addf(&value, "+%s%s:%s%s",
> +                                               src_ref_prefix, option_branch,
> +                                               branch_top.buf, option_branch);
> +                       else if (remote_head_points_at)
> +                               strbuf_addf(&value, "+%s:%s%s",
> +                                               remote_head_points_at->name, branch_top.buf,
> +                                               skip_prefix(remote_head_points_at->name, "refs/heads/"));
> +                       /*
> +                        * otherwise, the next "git fetch" will
> +                        * simply fetch from HEAD without updating
> +                        * any remote tracking branch, which is what
> +                        * we want.
> +                        */

Maybe document updates too? Though if it's obvious that
--single-branch should prepare refspec so that only one branch is
fetched later on, then maybe not.

> +               } else {
> +                       strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf);
> +               }

--mirror --single-branch combination does not look right. The "heads/"
part is missing..

$ git branch
  master * wildmatch
$ LANG=C ./git clone --mirror --single-branch .git abc
Cloning into bare repository 'abc'...
done.
$ grep fetch abc/config
        fetch = +refs/heads/wildmatch:refs/wildmatch
$ rm -rf abc
$ LANG=C ./git clone --mirror --single-branch --branch=master .git abc
Cloning into bare repository 'abc'...
done.
$ grep fetch abc/config
        fetch = +refs/master:refs/master
-- 
Duy