Git Deployment

git-deploy.sh

#!/bin/bash
help() {
    echo "`basename $0` [-h] -d <DEPLOY-DIR> -r <REPO-DIR>

    Does the necessary work to use a Git repository for deployment.

    This creates two directories - DEPLOY-DIR and REPO-DIR. REPO-DIR is
    a bare repository that you can push to and pull from like any repository,
    while DEPLOY-DIR contains the contents of the 'master' branch. Git hooks
    are used to keep DEPLOY-DIR up to date with REPO-DIR."
    exit 0
}

usage() {
    echo "`basename $0` [-h] -d <DEPLOY-DIR> -r <REPO-DIR>"
    exit 1
}

REPO_DIR=
DEPLOY_DIR=

while getopts "hd:r:" opt; do
    case $opt in
        r)  REPO_DIR="$OPTARG" ;;
        d)  DEPLOY_DIR="$OPTARG" ;;
        h)  help ;;
        \?) usage ;;
    esac
done

[ -z "$REPO_DIR" ] && usage
[ -z "$DEPLOY_DIR" ] && usage

REPO_DIR="`readlink -f "$REPO_DIR"`"
DEPLOY_DIR="`readlink -f "$DEPLOY_DIR"`"

SCRIPT="#!/bin/sh
git --work-tree='$DEPLOY_DIR' --git-dir='$REPO_DIR' checkout -f
"

mkdir "$REPO_DIR"
mkdir "$DEPLOY_DIR"

cd "$REPO_DIR"
git init --bare
cd hooks
rm *.sample
echo "$SCRIPT" > post-receive
chmod +x post-receive