From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Shawn O. Pearce" <spearce@spearce.org>
Subject: Re: Is a given file known to git?
Date: Tue, 11 Mar 2008 03:24:12 -0400
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To: Christoph Duelli <duelli@melosgmbh.de>
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Christoph Duelli <duelli@melosgmbh.de> wrote:
> Given a repository and a path p to a file in it:
> Is it possible (how?) to detect (in a bash script) if the file pointed 
> to by p is "known" to git?
> Something along the line:
> if `git knows p?
> then
> ...
> fi

Depends on your definition of "known to git".  You can look at
the current index, which may have files newly added but not yet
committed:

	if test $(git ls-files "$p" | wc -l) -gt 0
	then
	...
	fi

you can look at a specific committed state too:

	if git cat-file -e "$commit:$p" 2>/dev/null
	then
	...
	fi

where $commit can be any tree-ish, so a tag, a branch, a commit,
the symbolic-ref HEAD... etc.

-- 
Shawn.