Simple deploy script

deploy.sh

#!/bin/bash

DEPLOY_REPO="git@github.com:<user>/<rep>.git"
DEPLOY_BRANCH="<branch>"

DEPLOY_REVISION_FILE="<path>/last_revision"
DEPLOY_LOCAL_REPO="<path>/deploy"
DEPLOY_DATE_PREFIX=`date +%Y-%m-%d`

# Generate revision number
[ -r $DEPLOY_REVISION_FILE ] && REVISION=`cat $DEPLOY_REVISION_FILE` || REVISION=""
[ "${REVISION:0:10}" == "$DEPLOY_DATE_PREFIX" ] && CURRENT_REVISION_NUM=${REVISION:11:3}

CURRENT_REVISION_NUM=`echo $CURRENT_REVISION_NUM | grep -Po '[1-9]\w*$' || echo 0`

NUM=$[ $CURRENT_REVISION_NUM + 1 ]
[ ${#NUM} == "1" ] && NUM="00$NUM"
[ ${#NUM} == "2" ] && NUM="0$NUM"

NEW_REVISION=${DEPLOY_DATE_PREFIX}_${NUM}

# Dump number revision into file
echo ${NEW_REVISION} > ${DEPLOY_REVISION_FILE}

DEPLOY_TARGET_PATH="<path>/deploy/${NEW_REVISION}"

# Current revision folder
DEPLOY_SYMLINK="<path>/deploy/.current"

# Create folder
mkdir ${DEPLOY_TARGET_PATH}

# Clone Git repository
git clone --depth=1 ${DEPLOY_REPO} -b ${DEPLOY_BRANCH} ${DEPLOY_TARGET_PATH} && rm -rf ${DEPLOY_TARGET_PATH}/.git

# Something install
# May be deps
# May be databases