deploy-from-git.sh - Used on Arcustech to deploy a Craft CMS site

deploy-from-git.sh

# This script is used to deploy a Craft CMS site on an Arcustech server
# 
# It will clone the git main branch from a private repo into 
# a 'deployments' directory and them create symlinks for the 
# static assets: .env, and 3 directories of assets.
# It then does a composer install of the Craft site. 
# The scripts in the composer file are like this: https://github.com/nystudio107/devmode/blob/f2b231e772026860f75e255c9e22722dac983de8/cms/composer.json#L55
# These scripts update Craft, clear caches, etc.
# Finally, it will symlink the web directory in the newly downloaded files
# to the public folder which is the one used by Arcustech

# Define the directories we'll use
BASEDIR=$(pwd)
DEPLOYMENTSDIR=$BASEDIR'/deployments'
BUILDDIR=$DEPLOYMENTSDIR'/build-'$(date '+%Y-%m-%d-%H-%M-%S')

# helper function make repeating characters
# Used at the end of the script
# example:
# MESSAGE="* Hello World *"
# printf_new "*" ${#MESSAGE}
# echo "* $MESSAGE *"
# printf_new "*" ${#MESSAGE}

printf_new() {
 str=$1
 num=$2
 v=$(printf "%-${num}s" "$str")
 echo "${v// /*}"
}

# Being the process
echo "creating directory: $BUILDDIR"
mkdir -p $BUILDDIR
echo "moving to the new directory"
cd $BUILDDIR

# NOTE: The server this site is on has a "my_project_name"
# in it's ~/.ssh/config file; for example:
# 
# Host my_project_name
# Hostname github.com
# User git
# IdentityFile ~/.ssh/my_project_name_rsa
#
# this key is in the Deployment key area in the project on Github also
# 
# This allows me to clone a private repo like this
# git clone my_project_name:<user>/<repo>.git

echo "cloning the master git repo"
git clone project_name:johnfmorton/gitreponame
echo "cd gitreponame/cms"
cd gitreponame/cms/

# CUSTOMIZE the specific things you need linked

echo "Symlink the .env file in /static_assets"
ln -s $BASEDIR/static_assets/.env
echo "Symlink projects folder from static_assets"
mkdir $BUILDDIR/gitreponame/cms/web/assets
ln -s $BASEDIR/static_assets/projects $BUILDDIR/gitreponame/cms/web/assets/projects
echo "Symlink general folder from static_assets"
ln -s $BASEDIR/static_assets/general $BUILDDIR/gitreponame/cms/web/assets/general
echo "Symlink userphotos folder from static_assets"
ln -s $BASEDIR/static_assets/userphotos $BUILDDIR/gitreponame/cms/web/assets/userphotos

echo "composer install"
composer install

MESSAGE="* Symlink the public folder to $BUILDDIR/gitreponame/cms/web *"
printf_new "*" ${#MESSAGE};
echo "$MESSAGE";
printf_new "*" ${#MESSAGE};

# First, remove the old symlink
rm /storage/myusernameonserver/www/public_html/public
# Now that it's gone, create the new one
ln -sf $BUILDDIR/gitreponame/cms/web /storage/myusernameonserver/www/public_html/public

echo 'Clean up deployment directory to keep only the last 3 builds'
cd $DEPLOYMENTSDIR
echo $(pwd)
# the -n +4 means "starting at the 4th item in the list", we'll remove what is listed, i.e. removing older directories
ls -tl | grep "^d" | tail -n +4 | xargs rm -rf