From: Sitaram Chamarty <sitaramc@gmail.com>
Date: Fri, 20 Jan 2012 22:50:23 GMT
Subject: Re: [Q] Determing if a commit is reachable from the HEAD ?
Message-ID: <CAMK1S_gkZYpK3nrNMsnmFzi=tzjyEjVwOo_j4Z=d0hqjdF7r_w@mail.gmail.com>
In-Reply-To: <201201201433.30267.brian.foster@maxim-ic.com>

On Fri, Jan 20, 2012 at 7:03 PM, Brian Foster <brian.foster@maxim-ic.com> wrote:
>
> Hello,
>
>  Whilst I have found answers to my question on the Web,
>  only one seems to do exactly what I want ....
>
>                         x---Y---y---y---y  HEAD
>                        /
>  ...--o---o---C---o---S
>                        \
>                         n---n---N---*---*  other
>
>  In a script, how can I determine commit Y is reachable
>  from the current HEAD ?   And, much more importantly

I've been using 'git rev-list HEAD..Y'.  If it produces any output, Y
is not reachable from HEAD (there is something in Y that is not in
HEAD).