# Build packages for all supported OS / ARCH combinations

stages:
  - build-one
  - build-all

.build-setup: &build-setup
  image: docker:19.03.8

  services:
    - name: docker:19.03.8-dind
      command: ["--experimental"]

  before_script:
  - apk update
  - apk upgrade
  - apk add coreutils build-base sed git bash make
  - docker run --rm --privileged multiarch/qemu-user-static --reset -p yes -c yes

# build-one jobs build packages for a single OS / ARCH combination.
#
# They are run during the first stage of the pipeline as a smoke test to ensure
# that we can successfully build packages on all of our architectures for a
# single OS. They are triggered on any change to an MR. No artifacts are
# produced as part of build-one jobs.
.build-one-setup: &build-one-setup
  <<: *build-setup
  stage: build-one
  only:
    - merge_requests

# build-all jobs build packages for every OS / ARCH combination we support.
#
# They are run under two conditions:
# 1) Automatically whenever a new tag is pushed to the repo (e.g. v1.1.0)
# 2) Manually by a reviewer just before merging a MR.
#
# Unlike build-one jobs, it takes a long time to build the full suite
# OS / ARCH combinations, so this is optimized to only run once per MR
# (assuming it all passes). A full set of artifacts including the packages
# built for each OS / ARCH are produced as a result of these jobs.
.build-all-setup: &build-all-setup
  <<: *build-setup
  stage: build-all
  timeout: 2h 30m
  rules:
    - if: $CI_COMMIT_TAG
      when: always
    - if: $CI_MERGE_REQUEST_ID
      when: manual

  variables:
    ARTIFACTS_NAME: "${CI_PROJECT_NAME}-${CI_COMMIT_REF_SLUG}-${CI_JOB_NAME}-artifacts-${CI_PIPELINE_ID}"
    ARTIFACTS_DIR: "${CI_PROJECT_NAME}-${CI_COMMIT_REF_SLUG}-artifacts-${CI_PIPELINE_ID}"
    DIST_DIR: "${CI_PROJECT_DIR}/${ARTIFACTS_DIR}"

  artifacts:
    name: ${ARTIFACTS_NAME}
    paths:
      - ${ARTIFACTS_DIR}

# The full set of build-one jobs organizes to build
# ubuntu18.04 in parallel on each of our supported ARCHs.
build-one-amd64:
  <<: *build-one-setup
  script:
    - make ubuntu18.04-amd64

build-one-ppc64le:
  <<: *build-one-setup
  script:
    - make ubuntu18.04-ppc64le

build-one-arm64:
  <<: *build-one-setup
  script:
    - make ubuntu18.04-arm64

# The full set of build-all jobs organized to
# have builds for each ARCH run in parallel.
build-all-amd64:
  <<: *build-all-setup
  script:
    - make docker-amd64

build-all-x86_64:
  <<: *build-all-setup
  script:
    - make docker-x86_64

build-all-ppc64le:
  <<: *build-all-setup
  script:
    - make docker-ppc64le

build-all-arm64:
  <<: *build-all-setup
  script:
    - make docker-arm64

build-all-aarch64:
  <<: *build-all-setup
  script:
    - make docker-aarch64