variables:
  &vars
    export REGISTRY=code.balsillie.net && \
    export REGISTRY_USER=michael && \
    export ORGANIZATION=containers && \
    export SOURCE_ORGANIZATION=mirrors && \
    export REPO=matrix-service-synapse && \
    export BUILD_ARGS="PYTHON_VERSION=3.10" && \
    export DOCKERFILE="docker/Dockerfile" && \
    export CONTEXT=.

workspace:
  base: /git
  path: pipeline

clone:
  git:
    image: woodpeckerci/plugin-git      

pipeline:
  check-tag:
    image: debian:11-slim
    pull: false
    environment:
      - SHELL=/bin/bash
    commands:
      - if [[ $TAG =~ ^v1\...\..rc.$ ]]
      - then
      -   echo "Tag ${TAG} appears to be a release candidate, terminating build." && exit 1
      - elif [[ $TAG =~ ^v1\...\..$ ]] 
      - then
      -   echo "Tag ${TAG} appears to be a release tag, proceeding." && exit 0
      - else
      -   echo "Unable to determine nature of tag, terminating build." && exit 1
      - fi
  clone-source:
    image: docker:git
    commands: 
      - *vars
      - git clone "https://${REGISTRY}/${SOURCE_ORGANIZATION}/${REPO}.git" /git/$REPO
      - cd /git/$REPO
      - git checkout $TAG
  docker-build:
    image: docker:latest
    secrets: 
      - source: REGISTRY_PASSWORD
        target: REGISTRY_PASSWORD
    commands:
      - *vars
      - export DOCKER_BUILDKIT=1
      - cd /git/$REPO
      - echo $REGISTRY_PASSWORD | docker login $REGISTRY -u $REGISTRY_USER --password-stdin
      - docker build \
        -t $REGISTRY/$ORGANIZATION/$REPO:$TAG \
        -t $REGISTRY/$ORGANIZATION/$REPO:$(date +%F) \
        -t $REGISTRY/$ORGANIZATION/$REPO:latest \
        --pull \
        --build-arg $BUILD_ARGS \
        -f $DOCKERFILE \
        $CONTEXT
      - docker push $REGISTRY/$ORGANIZATION/$REPO:latest