GoHugo publish on gh-pages/docs branch for Github Pages

publish_to_ghpages.sh

#!/usr/bin/env sh

REMOTE="origin"
BRANCH="gh-pages"
HUGO_FOLDER="public"

if ! git diff-files --quiet --ignore-submodules --
then
    echo "The working directory is dirty. Please commit any pending changes."
    exit 1;
fi

echo "Switching to master branch"
echo "If you're using git flow, please make sure master branch is up to date."
git checkout master

echo "Deleting old publication"
rm -rf ${HUGO_FOLDER}
mkdir ${HUGO_FOLDER}
git worktree prune

echo "Checking out ${BRANCH} branch into {HUGO_FOLDER}"
git worktree add -B ${BRANCH} {HUGO_FOLDER} --no-checkout

echo "Generating site"
hugo

echo "Writing CNAME file"
if [ ! -f ./CNAME ]; then
    read -p "Enter the production URL (e.g. myblog.idontknow.com): " PRODUCTION_URL
    echo "${PRODUCTION_URL}" > {HUGO_FOLDER}/CNAME
else
    cat CNAME > {HUGO_FOLDER}/CNAME
fi

echo "Updating ${BRANCH} branch"
cd {HUGO_FOLDER} && git add --all && git commit -m "Publishing (publish.sh)" && cd ..

echo "Pushing to github"
git push ${REMOTE} +${BRANCH}

echo "Finished, cleaning up"
rm -rf {HUGO_FOLDER}