git-export

#!/bin/bash
#
# Called as git export <commit-reference> [<filename>]
#
# Performs a git-archive, gzips it and names it <commit-reference>.tar.gz
# or names it <filename> if included.

if [ -z $1 ]
then
    echo "You need to specify a commit-reference to export."
    echo "Usage: git export commit-reference [filename]"
    exit 1
else
    COMMIT=$1
fi

if [ -z $2 ]
then
    FILENAME="$COMMIT.tar.gz"
else
    FILENAME=$2
fi

git archive $COMMIT | gzip > $FILENAME