actions-gh-pages/entrypoint.sh

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#!/bin/bash
set -e
# set -ex
function print_error() {
echo -e "\e[31mERROR: ${1}\e[m"
}
function print_info() {
echo -e "\e[36mINFO: ${1}\e[m"
}
function skip() {
print_info "No changes detected, skipping deployment"
exit 0
}
# check values
if [ -n "${EXTERNAL_REPOSITORY}" ]; then
PUBLISH_REPOSITORY=${EXTERNAL_REPOSITORY}
else
PUBLISH_REPOSITORY=${GITHUB_REPOSITORY}
fi
print_info "Deploy to ${PUBLISH_REPOSITORY}"
if [ -n "${ACTIONS_DEPLOY_KEY}" ]; then
print_info "setup with ACTIONS_DEPLOY_KEY"
if [ -n "${SCRIPT_MODE}" ]; then
print_info "run as SCRIPT_MODE"
SSH_DIR="${HOME}/.ssh"
else
SSH_DIR="/root/.ssh"
fi
mkdir "${SSH_DIR}"
ssh-keyscan -t rsa github.com > "${SSH_DIR}/known_hosts"
echo "${ACTIONS_DEPLOY_KEY}" > "${SSH_DIR}/id_rsa"
chmod 400 "${SSH_DIR}/id_rsa"
remote_repo="git@github.com:${PUBLISH_REPOSITORY}.git"
elif [ -n "${PERSONAL_TOKEN}" ]; then
print_info "setup with PERSONAL_TOKEN"
remote_repo="https://x-access-token:${PERSONAL_TOKEN}@github.com/${PUBLISH_REPOSITORY}.git"
elif [ -n "${GITHUB_TOKEN}" ]; then
print_info "setup with GITHUB_TOKEN"
print_error "GITHUB_TOKEN works only private repo, See #9"
if [ -n "${EXTERNAL_REPOSITORY}" ]; then
print_error "can not use GITHUB_TOKEN to deploy to a external repository"
exit 1
fi
remote_repo="https://x-access-token:${GITHUB_TOKEN}@github.com/${PUBLISH_REPOSITORY}.git"
else
print_error "not found ACTIONS_DEPLOY_KEY, PERSONAL_TOKEN, or GITHUB_TOKEN"
exit 1
fi
if [ -z "${PUBLISH_BRANCH}" ]; then
print_error "not found PUBLISH_BRANCH"
exit 1
fi
if [ -z "${PUBLISH_DIR}" ]; then
print_error "not found PUBLISH_DIR"
exit 1
fi
remote_branch="${PUBLISH_BRANCH}"
local_dir="${HOME}/ghpages_${RANDOM}"
if git clone --depth=1 --single-branch --branch "${remote_branch}" "${remote_repo}" "${local_dir}"; then
cd "${local_dir}"
if [[ ${INPUT_KEEPFILES} == "true" ]]; then
print_info "Keeping existing files: ${INPUT_KEEPFILES}"
else
git rm -r --ignore-unmatch '*'
fi
find "${GITHUB_WORKSPACE}/${PUBLISH_DIR}" -maxdepth 1 | \
tail -n +2 | \
xargs -I % cp -rf % "${local_dir}/"
else
cd "${PUBLISH_DIR}"
git init
git checkout --orphan "${remote_branch}"
fi
# push to publishing branch
git config user.name "${GITHUB_ACTOR}"
git config user.email "${GITHUB_ACTOR}@users.noreply.github.com"
git remote rm origin || true
git remote add origin "${remote_repo}"
git add --all
print_info "Allowing empty commits: ${INPUT_EMPTYCOMMITS}"
COMMIT_MESSAGE="Automated deployment: $(date -u) ${GITHUB_SHA}"
if [[ ${INPUT_EMPTYCOMMITS} == "false" ]]; then
git commit -m "${COMMIT_MESSAGE}" || skip
else
git commit --allow-empty -m "${COMMIT_MESSAGE}"
fi
git push origin "${remote_branch}"
print_info "${GITHUB_SHA} was successfully deployed"