From: Andreas Schwab <schwab@linux-m68k.org>
Date: Fri, 20 Jan 2012 14:13:58 GMT
Subject: Re: [Q] Determing if a commit is reachable from the HEAD ?
Message-ID: <m2ehuu8nrt.fsf@igel.home>
In-Reply-To: <201201201433.30267.brian.foster@maxim-ic.com>

Brian Foster <brian.foster@maxim-ic.com> writes:

>  In a script, how can I determine commit Y is reachable
>  from the current HEAD ?

test $(git merge-base HEAD Y) = $(git rev-parse Y)

>  And, much more importantly
>  for my purposes, that commit N is _not_-reachable from
>  the current HEAD ?

test $(git merge-base HEAD N) != $(git rev-parse N)

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
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