Re: Is a given file known to git?

["Shawn O. Pearce" <spearce@spearce.org>]

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.