From: Philip Oakley <philipoakley@iee.org>
Date: Fri, 24 May 2013 20:28:46 GMT
Subject: Re: [PATCH 2/3] for-each-ref: introduce %(HEAD) marker
Message-ID: <2314A6D4A97C4D44AFEF62B9D089BDC3@PhilipOakley>
In-Reply-To: <1369405177-7855-3-git-send-email-artagnon@gmail.com>

From: "Ramkumar Ramachandra" <artagnon@gmail.com>
Sent: Friday, May 24, 2013 3:19 PM
> 'git branch' shows which branch you are currently on with an '*', but
> 'git for-each-ref' misses this feature.  So, extend the format with
> %(HEAD) to do exactly the same thing.

Maybe 'isHEAD'  as a better name, or 'ifHEAD', or something to indicate 
its boolean nature.

>
> Now you can use the following format in for-each-ref:
>
>  %C(red)%(HEAD)%C(reset) %C(green)%(refname:short)%C(reset)
>
> to display a red asterisk next to the current ref.
>
> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
> ---
> builtin/for-each-ref.c | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
> index 1563b25..63d3a85 100644
> --- a/builtin/for-each-ref.c
> +++ b/builtin/for-each-ref.c
> @@ -76,6 +76,7 @@ static struct {
>  { "upstream" },
>  { "symref" },
>  { "flag" },
> + { "HEAD" },
> };
>
> /*
> @@ -683,8 +684,16 @@ static void populate_value(struct refinfo *ref)
>  v->s = xstrdup(buf + 1);
>  }
>  continue;
> - }
> - else
> + } else if (!strcmp(name, "HEAD")) {
> + const char *head;
> + unsigned char sha1[20];
> + head = resolve_ref_unsafe("HEAD", sha1, 1, NULL);
> + if (!strcmp(ref->refname, head))
> + v->s = "*";
> + else
> + v->s = " ";
> + continue;
> + } else
>  continue;
>
>  formatp = strchr(name, ':');
> -- 
> 1.8.3.rc3.2.g99b8f3f.dirty