From: Adam Mercer <ramercer@gmail.com>
Date: Tue, 04 May 2010 16:11:57 GMT
Subject: Determining if a file exists in a bare repo
Message-ID: <w2q799406d61005040911p8fd7c234s5e6382298129985f@mail.gmail.com>

Hi

I'm trying to write a post-receive hook that generates some HTML files
from reStructured text files stored in a repository. Essentially I'm
doing this with

git show master:INSTALL | rst2html --no-raw --no-file-insertion >
/path/to/INSTALL.html

However I would like this script to fail gracefully if the INSTALL
file is not available in the repository so would like to check if this
file exists. The problem I'm having is that git-show seems to return a
zero return code even if the file you request doesn't exist, e.g.:

$ git show master:NoneExistantFile
fatal: ambiguous argument 'master:NoneExistantFile': unknown revision
or path not in the working tree.
Use '--' to separate paths from revisions
$ echo $?
0
$

is there another, scriptable, way to determine if a given file exists
in a given branch of a bare repository?

Cheers

Adam