twitch-bot/ci/docker-publish.sh

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#!/usr/bin/env bash
set -euo pipefail
function log() {
echo "[$(date +%H:%M:%S)] $@" >&2
}
[[ -n $GITHUB_REF_NAME ]] || {
log "ERR: This script is intended to run on a Github Action only."
exit 1
}
repo="ghcr.io/${GITHUB_REPOSITORY,,}"
tags=()
case "${GITHUB_REF_TYPE}" in
branch)
# Generic build to develop: Workflow has to limit branches to master
tags+=(develop)
;;
tag)
# Build to latest & stable: Older tags are not intended to rebuild
tags+=(latest stable ${GITHUB_REF_NAME})
;;
*)
log "ERR: The ref type ${GITHUB_REF_TYPE} is not handled."
exit 1
;;
esac
log "Building Docker image..."
docker build -t "${repo}:local" .
for ref in "${tags[@]}"; do
log "Pushing Docker image to '${repo}:${ref}'..."
docker tag "${repo}:local" "${repo}:${ref}"
docker push "${repo}:${ref}"
done
log "Publish finished."