release.yml

# This workflow takes care of creating release archives for the
# GAP distribution. It is run for all PR and branch pushes as usual,
# but also on tags named `vX.Y.Z` with X, Y, Z numbers.
#
# For builds triggered by a tag, the tag is turned into a GitHub release and
# the produced archives are attached to that.
name: "Wrap releases"

on:
  workflow_dispatch:
  pull_request:
  push:
    tags:
      - v[1-9]+.[0-9]+.[0-9]    # allow v1.2.3
      - v[1-9]+.[0-9]+.[0-9]-*  # allow v1.2.3-beta3 etc.
      - nightly
    branches:
      - master
      - stable-*
  schedule:
    # Every day at 3:33 AM UTC
    - cron: '33 3 * * *'

concurrency:
  # group by workflow and ref; the last slightly strange component ensures that for pull
  # requests, we limit to 1 concurrent job, but for the master branch we don't
  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.run_number }}
  # Cancel intermediate builds, but only if it is a pull request build.
  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}

env:
  NO_COVERAGE: 1

jobs:
  unix:
    name: "Create Unix archives and data"
    # Don't run this twice on PRs for branches pushed to the same repository
    if: ${{ !(github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository) }}
    runs-on: ubuntu-latest
    outputs:
      gap-build-version: ${{ steps.get-build.outputs.name }}

    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      # When an annotated tag is pushed, then for some reason we don't see it
      # in this action; instead an unannotated tag with the same name is
      # present, we resolve this by force-fetching tags.
      # But we first fetch tags from gap-system/gap, so that our scripts should
      # know about all of the 'usual' tags.
      # Only then do we fetch tags from the current fork, which will overwrite
      # any of those from gap-system/gap that conflict.
      - name: "Force fetch tags"
        run: |
          git fetch https://github.com/gap-system/gap --tags --force
          git fetch --tags --force

      - name: "Set up Python"
        uses: actions/setup-python@v4
        with:
          python-version: 3.9
      - name: "Install Python modules"
        run: pip3 install PyGithub python-dateutil
      - name: "Install latex"
        run: |
          packages=(
            texlive-latex-base
            texlive-latex-recommended
            texlive-latex-extra
            texlive-fonts-recommended
          )
          sudo apt-get update
          sudo apt-get install --no-install-recommends "${packages[@]}"
      - name: "Configure GAP"
        run: dev/ci-configure-gap.sh
      - name: "Build GAP"
        run: dev/ci-build-gap.sh
      - name: "Record the GAP build version"
        id: get-build
        run: |
          BUILD=`head -1 cnf/GAP-VERSION-FILE | cut -d ' ' -f3`
          echo "steps.get-build.outputs.name = ${BUILD}"
          echo "name=${BUILD}" >> $GITHUB_OUTPUT
      - name: "Make archives"
        run: python -u ./dev/releases/make_archives.py

      - name: "Test building GAP from the primary release archive"
        run: |
          mkdir -p test-gap-tarball
          pushd test-gap-tarball
          tar xvf ../tmp/gap-${{ steps.get-build.outputs.name }}.tar.gz
          cd gap*
          # test building GAP
          ./configure --prefix=/tmp/gapprefix
          make -j8
          popd

      - name: "Test 'make install' from the primary release archive"
        run: |
          pushd test-gap-tarball/gap*
          GAPPREFIX=/tmp/gapprefix TEST_SUITES="testmakeinstall" ../../dev/ci.sh
          popd

      # Upload the main GAP .tar.gz file (which includes packages).
      #
      # Warning: the result is a single .zip file (so things are compressed twice).
      - name: "Upload GAP tarball"
        uses: actions/upload-artifact@v3
        with:
          if-no-files-found: error
          name: gap
          path: tmp/gap-${{ steps.get-build.outputs.name }}.tar.gz
          retention-days: 1

      # Always upload metadata, and keep longer, since it is much smaller.
      - name: "Upload JSON metadata"
        uses: actions/upload-artifact@v3
        with:
          if-no-files-found: error
          name: "JSON metadata"
          path: tmp/*json.gz
          retention-days: 7

      - name: "Make GitHub release"
        if: ${{ startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/tags/nightly' }}
        run: python -u ./dev/releases/make_github_release.py ${GITHUB_REF#refs/tags/} tmp/
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  cygwin:
    name: "Create Windows x86_64 installer"
    needs: unix
    runs-on: windows-2019
    env:
      CHERE_INVOKING: 1
      GAP_VERSION: ${{ needs.unix.outputs.gap-build-version }}
    defaults:
      run:
        shell: bash

    strategy:
      fail-fast: false

    steps:
      # The GAP to be wrapped is put into gap-$GAP_VERSION/
      # The gap-windows script requires the GAP directory to be named this way.

      - uses: actions/setup-python@v4
        with:
          python-version: 3.9

      # Download the artifact -- for an actual release, this contains the
      # exact same tarball as was uploaded to the release as an asset
      - name: "Download GAP archive from previous job"
        uses: actions/download-artifact@v3
        with:
          name: gap

      - name: "Extract the GAP release tarball"
        run: |
          tar -zxf gap-${GAP_VERSION}.tar.gz
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: "Clone the Windows installer maker scripts"
        uses: actions/checkout@v3
        with:
          repository: gap-system/gap-windows
          ref: main
          path: gap-windows

      - uses: gap-actions/setup-cygwin@v1

      # Currently, the gap-windows/release_gap.sh script wraps the GAP
      # contained in gap-${GAP_VERSION}, and outputs its installer to
      # gap-windows/Output/gap-${GAP_VERSION}-$ARCH.exe
      #
      # TODO:
      # * Investigate how to speed this up. e.g. if we don't need to compile
      #   GAP's manuals then could we perhaps avoid installing TeXLive?
      # * Investigate splitting release_gap.sh into multiple scripts so that
      #   this big step can be split up into multiple steps
      - name: "Compile GAP and its packages, and create the installer"
        shell: C:\cygwin64\bin\bash.exe --login --norc -o igncr '{0}'
        run: |
          cd ${GITHUB_WORKSPACE}/gap-windows
          bash release_gap.sh
          # compute the sha256sum, taking care to avoid a trailing newline
          NAME=Output/gap-${{ env.GAP_VERSION }}-x86_64.exe
          printf "%s" "$(sha256sum $NAME | cut -c1-64)" >$NAME.sha256

        env:
          ARCH: x86_64

      # Artifacts live for 1 day, i.e. until the next cron job runs.
      - name: "Upload the installer as an artifact"
        if: ${{ github.event_name == 'schedule' }}
        uses: actions/upload-artifact@v3
        with:
          if-no-files-found: error
          name: gap-${{ env.GAP_VERSION }}-x86_64.exe
          path: gap-windows/Output/gap-${{ env.GAP_VERSION }}-x86_64.exe
          retention-days: 1

      - name: "Upload the installer to tag"
        uses: softprops/action-gh-release@v1
        if: ${{ startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/tags/nightly' }}
        with:
          files: |
            gap-windows/Output/gap-${{ env.GAP_VERSION }}-x86_64.exe
            gap-windows/Output/gap-${{ env.GAP_VERSION }}-x86_64.exe.sha256

  # The following job is duplicated in CI.yml - keep the two in sync.
  # (except for their different 'needs' components).
  slack-notification:
    name: Send Slack notification on status change
    needs:
      - unix
      - cygwin
    if: ${{ always() && github.event_name != 'pull_request' && github.repository == 'gap-system/gap' }}
    runs-on: ubuntu-latest

    steps:
      - name: Get branch name
        id: get-branch
        run: echo "branch=${GITHUB_REF#refs/*/}" >> $GITHUB_OUTPUT
      - name: Determine whether CI status changed
        uses: gap-actions/should-i-notify-action@v1
        id: should_notify
        with:
          branch: ${{ steps.get-branch.outputs.branch }}
          needs_context: ${{ toJson(needs) }}
          github_token: ${{ secrets.GITHUB_TOKEN }}
          notify_on_changed_status: true
      - name: Send slack notification
        uses: act10ns/slack@v2
        if: ${{ steps.should_notify.outputs.should_send_message == 'yes' }}
        with:
          status: ${{ steps.should_notify.outputs.current_status }}
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}