Git hook post-receive for automated Hugo deployments

post-receive.sample

#!/bin/bash
## Set to exit immediately on errors
set -eu

## Feedback to user that post-receive script is running.
echo ""
echo "   /==============================="
echo "   |  Push received ... Beginning Build and Deployment script ..."
echo "   |"

TARGET="/path/to/deploy-folder" # Deployment location - Where Hugo should put the /public/ contents after build
BUILD="/path/to/build-folder" # Build location - Where the repo will be copied, and the source folder for Hugo to build
PUBLIC="/var/www/html/website.com" # Public location - Where you serve your http content `/var/www/html/PUBLIC`
GIT_DIR="/path/to/your/repo.git" # Git Repository location - bare git folder - `git init --bare /path/to/GIT_DIR`
BRANCH="main" # Only pushes to this branch will deploy
HUGO_VERSION=$(hugo version) # Get the current version of Hugo
NOW=$(date +"%Y%m%d-%H%M") # Get current date

while read oldrev newrev ref
do
	# only checking out the master (or whatever branch you would like to deploy)
	if [ "$ref" = "refs/heads/$BRANCH" ];
	then
		echo "   |  Ref: $ref received. Deploying ${BRANCH} branch to production..."
		git --work-tree=$BUILD --git-dir=$GIT_DIR checkout -f $BRANCH # check out the master branch into the BUILD folder
        git tag release_$NOW $BRANCH ## set a tag with the $NOW variable
        echo "   |  Building with Hugo from $BUILD to $TARGET..."
        echo "Running $HUGO_VERSION"
        hugo -v --minify --enableGitInfo -s $BUILD -d $TARGET
        echo "   |  Symlinking $TARGET to $PUBLIC"
        ln -s $TARGET $PUBLIC
        # Provide feedback
        echo "   |"
        echo "   |  *DEPLOYMENT COMPLETED*"
        echo "   |  Deployed branch  : $BRANCH"
        echo "   |  Built from       : $BUILD"
        echo "   |  Built to         : $TARGET"
        echo "   |  Symlinked to     : $PUBLIC"
        echo "   |  Tag name         : release_$NOW"
        echo "   \==============================="
	else
		echo "    |  Ref $ref received. Doing nothing: only the ${BRANCH} branch may be deployed on this server."
	fi
done