Deploy git to live or dev server

deploy.sh

#!/usr/bin/env bash
## author: reillo <atilloregner@gmail.com>
## add to .gitignore deployment_log
## description: purpose of this is to update the development or live server with using git and packages.
## > bash ./deploy.sh  					Deploy project to develop without composer update
## > bash ./deploy.sh -l 				Deploy project to live!.
## > bash ./deploy.sh -u package/name	Deploy to develop and update package name
## > bash ./deploy.sh -l -u package/name  	Deploy to live and update package name

## configuration
devDomain=dev.sample.com
devBranch=develop
devTargetPath=/usr/share/nginx/mage_dev
devRemoteUser=dev
devPort=22

liveDomain=sample.com
liveBranch=master
liveTargetPath=/usr/share/nginx/mage
liveRemoteUser=trex
livePort=22

## other
composerUpdate=

## git merging information
repo=origin
merging="merge" ### "merge" or "reset --hard"

## deployer information
vhostname=$(hostname)
vuser=$USER

# flags,
domain=${devDomain}
branch=${devBranch}
targetPath=${devTargetPath}
remoteUser=${devRemoteUser}
port=${devPort}

## -l - deploy to live
## -u [package/name] - execute composer update
while getopts :lu: option; do
    case ${option} in
        l) domain=${liveDomain}; branch=${liveBranch}; targetPath=${liveTargetPath}; remoteUser=${liveRemoteUser}; port=${livePort};;
        u) composerUpdate="composer update "$OPTARG;;
    esac
done

## Debugging
#echo $domain;
#echo $branch;
#echo $targetPath;
#echo $remoteUser;
#exit

## push current git master to repo
git push ${repo} ${branch}

ssh ${remoteUser}@${domain} -p ${port} /bin/bash << EOF
  cd ${targetPath} || exit

  ## fecth repo
  umask 022
  unset GIT_DIR
  git fetch ${repo} ${branch}
  git stash save "stash-backup-\$(date +"%Y-%m-%d")"
  git ${merging} ${repo}/${branch}

  ## clear flush (optional)
  #${composerUpdate}
  #modman deploy app_magentotheme --force
  #modman deploy app_rewrite --force
  #n98-magerun.phar cache:flush

  ## log last deploy
  touch deployment_log
  logContent="${vuser}@${vhostname} : Last Deployed \$(date +"%Y-%m-%d")"
  echo \${logContent} >> "deployment_log"
EOF