# vim: set expandtab shiftwidth=2 tabstop=8 textwidth=0:

.templates_sha: &template_sha 567700e483aabed992d0a4fea84994a0472deff6 # see https://docs.gitlab.com/ee/ci/yaml/#includefile
# This file uses the freedesktop ci-templates to build Weston and run our
# tests in CI.
#
# ci-templates uses a multi-stage build process. First, the base container
# image is built which contains the core distribution, the toolchain, and
# all our build dependencies. This container is aggressively cached; if a
# container image matching $FDO_DISTRIBUTION_TAG is found in either the
# upstream repo (wayland/weston) or the user's downstream repo, it is
# reused for the build. This gives us predictability of build and far
# quicker runtimes, however it means that any changes to the base container
# must also change $FDO_DISTRIBUTION_TAG. When changing this, please use
# the current date as well as a unique build identifier.
#
# After the container is either rebuilt (tag mismatch) or reused (tag
# previously used), the build stage executes within this container.
#
# The final stage is used to expose documentation and coverage information,
# including publishing documentation to the public site when built on the
# main branch.
#
# Apart from the 'variables', 'include', and 'stages' top-level anchors,
# everything not beginning with a dot ('.') is the name of a job which will
# be executed as part of CI, unless the rules specify that it should not be
# run.
#
# Variables prefixed with CI_ are generally provided by GitLab itself;
# variables prefixed with FDO_ and templates prefixed by .fdo are provided
# by the ci-templates.
#
# For more information on GitLab CI, including the YAML syntax, see:
#   https://docs.gitlab.com/ee/ci/yaml/README.html
#
# Note that freedesktop.org uses the 'Community Edition' of GitLab, so features
# marked as 'premium' or 'ultimate' are not available to us.
#
# For more information on ci-templates, see:
#   - documentation at https://freedesktop.pages.freedesktop.org/ci-templates/
#   - repo at https://gitlab.freedesktop.org/freedesktop/ci-templates/

variables:
  FDO_UPSTREAM_REPO: wayland/weston
  FDO_REPO_SUFFIX: "$BUILD_OS/$BUILD_ARCH"
  FDO_DISTRIBUTION_TAG: '2021-11-24.0-kernel-v5.14'


include:
  # Here we use a fixed ref in order to isolate ourselves from ci-templates
  # API changes. If you need new features from ci-templates you must bump
  # this to the current SHA you require from the ci-templates repo, however
  # be aware that you may need to account for API changes when doing so.
  - project: 'freedesktop/ci-templates'
    ref: *template_sha
    file: '/templates/debian.yml'
  - project: 'freedesktop/ci-templates'
    ref: *template_sha
    file: '/templates/ci-fairy.yml'


# Define the build stages. These are used for UI grouping as well as
# dependencies.
stages:
  - "Merge request checks"
  - "Base container"
  - "Full build and test"
  - "No-GL build and test"
  - "Other builds"
  - pages


# Base variables used for anything using a Debian environment
.os-debian:
  variables:
    BUILD_OS: debian
    FDO_DISTRIBUTION_VERSION: buster
    FDO_DISTRIBUTION_EXEC: 'env FDO_CI_CONCURRENT=${FDO_CI_CONCURRENT} BUILD_ARCH=${BUILD_ARCH} KERNEL_IMAGE=${KERNEL_IMAGE} KERNEL_DEFCONFIG=${KERNEL_DEFCONFIG} bash .gitlab-ci/debian-install.sh'

.ci-rules:
  rules:
    - when: on_success

# Does not inherit .ci-rules as we only want it to run in MR context.
check-commit:
  extends:
    - .fdo.ci-fairy
  stage: "Merge request checks"
  rules:
    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
      when: always
    - when: never
  script:
    - ci-fairy check-commits --signed-off-by --junit-xml=results.xml
    - ci-fairy check-merge-request --require-allow-collaboration --junit-xml=results.xml
  variables:
    GIT_DEPTH: 100
  artifacts:
    reports:
      junit: results.xml

.debian-x86_64:
  extends:
    - .os-debian
  variables:
    BUILD_ARCH: "x86-64"
    KERNEL_IMAGE: "bzImage"
    KERNEL_DEFCONFIG: "x86_64_defconfig"

.debian-armv7:
  extends:
    - .os-debian
  variables:
    BUILD_ARCH: "armv7"

.debian-aarch64:
  extends:
    - .os-debian
  variables:
    BUILD_ARCH: "aarch64"
    KERNEL_IMAGE: "Image"
    KERNEL_DEFCONFIG: "defconfig"
    QEMU_SMP: 8 # built-in QEmu limit

# Build our base container image, which contains the core distribution, the
# toolchain, and all our build dependencies. This will be reused in the build
# stage.
x86_64-debian-container_prep:
  extends:
    - .ci-rules
    - .debian-x86_64
    - .fdo.container-build@debian
  timeout: 30m
  stage: "Base container"

armv7-debian-container_prep:
  extends:
    - .ci-rules
    - .debian-armv7
    - .fdo.container-build@debian
  tags:
    - aarch64
  variables:
    FDO_BASE_IMAGE: "arm32v7/debian:$FDO_DISTRIBUTION_VERSION"
  timeout: 30m
  stage: "Base container"

aarch64-debian-container_prep:
  extends:
    - .ci-rules
    - .debian-aarch64
    - .fdo.container-build@debian
  tags:
    - aarch64
  timeout: 30m
  stage: "Base container"

# Core templates for all of our build steps. These are reused by all build jobs
# through the `extends` keyword.
.build-env:
  timeout: 15m
  variables:
    BUILDDIR: $CI_PROJECT_DIR/build-weston-$CI_JOB_NAME
    PREFIX: $CI_PROJECT_DIR/prefix-weston-$CI_JOB_NAME
  before_script:
  - export PATH=~/.local/bin:$PATH
  - export XDG_RUNTIME_DIR="$(mktemp -p $(pwd) -d xdg-runtime-XXXXXX)"
  - export TESTS_RES_PATH="$BUILDDIR/tests-res.txt"
  - mkdir "$BUILDDIR" "$PREFIX"

.build-with-clang:
  variables:
    CC: clang-8
    CC_LD: lld-8
    MESON_TOOLCHAIN_OPTIONS: "$MESON_OPTIONS -Db_lundef=false" # clang+ASan+undef=boom

# Extends the core build templates to also provide for running our testing. We
# run this inside a virtme (qemu wrapper) VM environment so we can test the DRM
# backend using the 'vkms' virtual driver under Linux.
.build-and-test:
  extends:
  - .ci-rules
  script:
  - cd "$BUILDDIR"
  - meson --prefix="$PREFIX" -Db_sanitize=address ${MESON_OPTIONS} ${MESON_TOOLCHAIN_OPTIONS} ..
  - ninja -k0 -j${FDO_CI_CONCURRENT:-4}
  - ninja install
  - test -n "${QEMU_SMP}" || QEMU_SMP=${FDO_CI_CONCURRENT:-4}
  - virtme-run --rw --pwd --kimg /weston-virtme/${KERNEL_IMAGE} --kopt quiet --script-dir ../.gitlab-ci/virtme-scripts --qemu-opts -m 4096 -smp ${QEMU_SMP}
  - TEST_RES=$(cat $TESTS_RES_PATH)
  - rm $TESTS_RES_PATH
  - cp -R /weston-virtme ./
  - rm weston-virtme/${KERNEL_IMAGE}
  - exit $TEST_RES
  artifacts:
    name: weston-$CI_COMMIT_SHA
    when: always
    paths:
    - $BUILDDIR/*.png
    - $BUILDDIR/meson-logs
    - $BUILDDIR/weston-virtme
    - $PREFIX
    reports:
      junit: $BUILDDIR/meson-logs/testlog.junit.xml

# Same as above, but without running any tests.
.build-no-test:
  extends:
  - .ci-rules
  script:
  - cd "$BUILDDIR"
  - meson --prefix="$PREFIX" ${MESON_OPTIONS} ..
  - ninja -k0 -j${FDO_CI_CONCURRENT:-4}
  - ninja install
  - ninja clean
  artifacts:
    name: weston-$CI_COMMIT_SHA
    when: always
    paths:
    - $BUILDDIR/meson-logs
    - $PREFIX

# OS/architecture-specific variants
.build-env-debian-x86_64:
  extends:
    - .debian-x86_64
    - .fdo.suffixed-image@debian
    - .build-env
  needs:
    - job: x86_64-debian-container_prep
      artifacts: false

.build-env-debian-armv7:
  tags:
    - aarch64
  extends:
    - .debian-armv7
    - .fdo.suffixed-image@debian
    - .build-env
  needs:
    - job: armv7-debian-container_prep
      artifacts: false

.build-env-debian-aarch64:
  tags:
    - aarch64
  extends:
    - .debian-aarch64
    - .fdo.suffixed-image@debian
    - .build-env
  needs:
    - job: aarch64-debian-container_prep
      artifacts: false

.test-env-debian-x86_64:
  tags:
    - kvm
  extends:
    - .build-env-debian-x86_64
    - .build-and-test
  needs:
    - job: x86_64-debian-container_prep
      artifacts: false

.test-env-debian-aarch64:
  tags:
    - kvm-aarch64
  extends:
    - .build-env-debian-aarch64
    - .build-and-test
  needs:
    - job: aarch64-debian-container_prep
      artifacts: false

# Full build, used for testing under KVM.
.build-options-full:
  stage: "Full build and test"
  variables:
    MESON_OPTIONS: >
      -Doptimization=0
      -Db_coverage=true
      -Dwerror=true
      -Dtest-skip-is-failure=true
      -Dlauncher-libseat=true
  after_script:
  - ninja -C "$BUILDDIR" coverage-html > "$BUILDDIR/meson-logs/ninja-coverage-html.txt"
  - ninja -C "$BUILDDIR" coverage-xml
  - sed -i -e 's/\/build-weston-build-full//' -e 's/\"..\//\"/' "$BUILDDIR/meson-logs/coverage.xml"
  artifacts:
    reports:
      cobertura: $BUILDDIR/meson-logs/coverage.xml

x86_64-debian-full-build:
  extends:
    - .test-env-debian-x86_64
    - .build-options-full

aarch64-debian-full-build:
  extends:
    - .test-env-debian-aarch64
    - .build-options-full

x86_64-clang-debian-full-build:
  extends:
    - .test-env-debian-x86_64
    - .build-with-clang
    - .build-options-full

aarch64-clang-debian-full-build:
  extends:
    - .test-env-debian-aarch64
    - .build-with-clang
    - .build-options-full

# Docs should be invariant on all architectures, so we only do it on Debian
# x86-64.
docs-build:
  stage: "Other builds"
  variables:
    MESON_OPTIONS: >
      -Dwerror=true
      -Ddoc=true
  extends:
    - .build-env-debian-x86_64
    - .build-no-test

# Building without gl-renderer, to make sure this keeps working.
.build-options-no-gl:
  stage: "No-GL build and test"
  variables:
    MESON_OPTIONS: >
      -Dsimple-clients=damage,im,shm,touch,dmabuf-v4l
      -Drenderer-gl=false
      -Dremoting=false
      -Dpipewire=false
      -Dwerror=true
      -Dlauncher-libseat=true

x86_64-debian-no-gl-build:
  extends:
    - .test-env-debian-x86_64
    - .build-options-no-gl

armv7-debian-no-gl-build:
  extends:
    - .build-env-debian-armv7
    - .build-no-test
    - .build-options-no-gl

armv7-clang-debian-no-gl-build:
  extends:
    - .build-env-debian-armv7
    - .build-with-clang
    - .build-no-test
    - .build-options-no-gl

aarch64-debian-no-gl-build:
  extends:
    - .test-env-debian-aarch64
    - .build-options-no-gl

# Expose docs and coverage reports, so we can show users any changes to these
# inside their merge requests, letting us check them before merge.
#
# This does not build the docs or coverage information itself, but just reuses
# the docs and coverage information from the x86-64 Debian builds as the
# canonical sources of coverage information; the docs themselves should be
# invariant across any architecture or OS.
docs-and-coverage:
  extends:
    - .ci-rules
    - .debian-x86_64
    - .fdo.suffixed-image@debian
  stage: pages
  needs:
    - job: docs-build
      artifacts: true
    - job: x86_64-debian-full-build
      artifacts: true
  timeout: 5m
  script:
  - mv prefix-weston-docs-build/share/doc/weston Documentation
  - mv build-weston-x86_64-debian-full-build/meson-logs/coveragereport Test_Coverage
  - rm Test_Coverage/gcov.css
  - cp doc/style/lcov-style.css Test_Coverage/gcov.css
  - cp doc/style/*.png Test_Coverage/
  - rm -rf build-* prefix-*
  artifacts:
    expose_as: 'Documentation preview and test coverage report'
    paths:
    - Documentation/
    - Test_Coverage/

# Generate the documentation for https://wayland.pages.freedesktop.org/weston/
# Anything under public/ is published to this URL.
#
# Does not inherit .ci-rules as it should only run in our default branch for
# the upstream repo.
pages:
  extends:
    - .debian-x86_64
    - .fdo.suffixed-image@debian
  stage: pages
  timeout: 5m
  needs:
    - job: docs-build
      artifacts: true
  script:
  - export PREFIX=$(pwd)/prefix-weston-docs-build
  - mkdir public
  - cp -R $PREFIX/share/doc/weston/* public/
  artifacts:
    paths:
    - public
  rules:
    - if: '$CI_PIPELINE_SOURCE == "push" && $CI_PROJECT_PATH == "wayland/weston" && $CI_BUILD_REF_NAME == $CI_DEFAULT_BRANCH'
      when: on_success
    - when: never