Atomic symlinked deployments

deploy.sh

BASE="/var/www/project"
RELEASES="$BASE/releases"
RELEASE="$RELEASES/`date +%s`"
SHARED="$BASE/shared"
CACHE="$BASE/deploy-cache"

cp -a $CACHE $RELEASE
cd $RELEASE

####### [Pre-launch commands] #######
composer install -va
####### [/Pre-launch commands] #######

if [ $? -ne 0 ]; then echo "Pre-launch commands failed."; exit 1; fi

rm -f $RELEASES/current; ln -s $RELEASE $RELEASES/current; mv -f $RELEASES/current $BASE/
cd $RELEASE

####### [Post-launch commands] #######

####### [/Post-launch commands] #######

if [ $? -ne 0 ]; then echo "Post-launch commands failed, but the current application symlink was updated."; exit 1; fi

echo "Cleaning up old releases"
\ls -1d $RELEASES/* | \sort -rg | \tail -n +11 | \xargs /bin/rm -rf