deploy-to-gh-pages.sh

#!/bin/bash
# script from https://nolanbconaway.github.io/pelican-deploy-gh-actions/pages/deployment-on-github-pages.html

if [ -z "$ACCESS_TOKEN" ]
then
echo "No access token!"
exit 1
fi

FOLDER='output'
BASE_BRANCH='master'
BRANCH='gh-pages'
COMMIT_EMAIL="${GITHUB_ACTOR}@users.noreply.github.com"
REPOSITORY_PATH="https://${ACCESS_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"


echo '----- Deploy Settings -----'

echo "* REPO: $GITHUB_REPOSITORY"
echo "* ACTOR: $GITHUB_ACTOR"
echo "* BRANCH: $BRANCH"
echo "* BASE_BRANCH: $BASE_BRANCH"
echo "* COMMIT_EMAIL: $COMMIT_EMAIL"
echo "* GITHUB_REPOSITORY: $GITHUB_REPOSITORY"
echo "* FOLDER: $FOLDER"


echo '----- Configuring git -----'
git init && \
git config --global user.email "${COMMIT_EMAIL}" && \
git config --global user.name "${GITHUB_ACTOR}"


echo "----- Checking on $BRANCH branch -----"
if [ "$(git ls-remote --heads "$REPOSITORY_PATH" "$BRANCH" | wc -l)" -eq 0 ];
then
    echo "Creating remote branch ${BRANCH} as it doesn't exist..."
    git checkout "$BASE_BRANCH" && \
    git checkout --orphan $BRANCH && \
    git rm -rf . && \
    echo 'just creating the branch...' > README.md && \
    git add README.md && \
    git commit -m "Initial ${BRANCH} commit" && \
    git push $REPOSITORY_PATH $BRANCH
fi

git checkout "$BASE_BRANCH"


echo '----- Making HTML -----'
make publish


echo '----- Deploying -----'
git add -f $FOLDER && \
git commit -m "Deploy to ${BRANCH} - $(date +"%T")" && \
git push $REPOSITORY_PATH `git subtree split --prefix $FOLDER $BASE_BRANCH`:$BRANCH --force


echo "Deployment succesful!"