main.yaml

##
## This workflow handles testing of pull requests and pushes.
## It also publishes some packages to any new Erlang/OTP release
##
## To speed this up it would be nice if one could share docker
## images inbetween different jobs, but at the moment this is
## not possible so we need to rebuild all of Erlang/OTP multiple
## times.
##
## Now that we have migrated to ghcr.io we use the
## built-in caching mechanisms of docker/build-push-action@v2.
## However as things are now we use docker directly to make things
## work due to historical reasons.
##

name: Build and check Erlang/OTP

on:
  push:
  pull_request:
  schedule:
      - cron: 0 1 * * *

## We cancel any multiple runs from PRs, while runs from tags/branches are allowed
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event.pull_request.number || github.sha }}
  cancel-in-progress: true

env:
    ## Equivalent to github.event_name == 'pull_request' ? github.base_ref : github.ref_name
    BASE_BRANCH: ${{ github.event_name == 'pull_request' && github.base_ref || github.ref_name }}

jobs:

  pack:
    name: Build Erlang/OTP (64-bit)
    runs-on: ubuntu-latest
    outputs:
        BASE_BUILD: ${{ steps.base-build.outputs.BASE_BUILD }}
        changes: ${{ steps.changes.outputs.changes }}
        c-code-changes: ${{ steps.c-code-changes.outputs.changes }}
        all: ${{ steps.apps.outputs.all }}
    steps:
      - uses: actions/checkout@v4.1.7
      - uses: ./.github/actions/build-base-image
        with:
            BASE_BRANCH: ${{ env.BASE_BRANCH }}
            BUILD_IMAGE: false
      - name: Get applications
        id: apps
        run: |
          .github/scripts/path-filters.sh > .github/scripts/path-filters.yaml
          .github/scripts/c-code-path-filters.sh > .github/scripts/c-code-path-filters.yaml
          ## Print path-filters for debug purposes
          cat .github/scripts/path-filters.yaml
          cat .github/scripts/c-code-path-filters.yaml
          ALL_APPS=$(grep '^[a-z_]*:' .github/scripts/path-filters.yaml | sed 's/:.*$//')
          ALL_APPS=$(jq -n --arg inarr "${ALL_APPS}" '$inarr | split("\n")' | tr '\n' ' ')
          echo "all=${ALL_APPS}" >> $GITHUB_OUTPUT
      - name: Check which applications have changed
        uses: dorny/paths-filter@v3.0.2
        id: app-changes
        with:
          filters: .github/scripts/path-filters.yaml
      - name: Override which applications have changed
        id: changes
        env:
            ALL_APPS: ${{ steps.apps.outputs.all }}
            CHANGED_APPS: ${{ steps.app-changes.outputs.changes }}
        run: |
          if ${{ github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'full-build-and-check') }} || ${{ github.event_name == 'schedule' }}; then
              echo "changes=${ALL_APPS}" >> "$GITHUB_OUTPUT"
          else
              echo "changes=${CHANGED_APPS}" >> "$GITHUB_OUTPUT"
          fi
      - name: Check if there are any C-code changes, if not then limit CI run
        uses: dorny/paths-filter@v3.0.2
        id: c-code-changes
        with:
          filters: .github/scripts/c-code-path-filters.yaml
      - name: Cache pre-built src
        uses: actions/cache@v4.0.2
        with:
            path: otp_src.tar.gz
            key: prebuilt-src-${{ github.ref_name }}-${{ github.sha }}
            restore-keys: |
                prebuilt-src-${{ github.base_ref }}-${{ github.event.pull_request.base.sha }}
      - name: Cache pre-built binaries
        uses: actions/cache@v4.0.2
        with:
            path: otp_cache.tar.gz
            key: prebuilt-cache-64-bit-${{ github.ref_name }}-${{ github.sha }}
            restore-keys: |
                prebuilt-cache-64-bit-${{ github.base_ref }}-${{ github.event.pull_request.base.sha }}
      - name: Create initial pre-release tar
        run: .github/scripts/init-pre-release.sh otp_archive.tar.gz otp_src.tar.gz
      - name: Upload source tar archive
        uses: actions/upload-artifact@v4.4.0
        with:
          name: otp_git_archive
          path: otp_archive.tar.gz
      - name: Check how we can use the pre-built cache
        uses: dorny/paths-filter@v3.0.2
        id: cache
        with:
          filters: |
              no-cache:
                  - '.github/**'
                  - deleted: '**/*.h'
              deleted:
                  - deleted: '**'
              bootstrap:
                  - 'bootstrap/**'
              configure:
                  - '**.ac'
                  - '**.in'
          list-files: shell
      - name: "Check '@github-action disable-cache' in PR Comment"
        id: issue_comment
        env:
          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
        shell: /usr/bin/bash {0}
        run: |
            ISSUE_COMMENTS=$(gh api -H "Accept: application/vnd.github+json" /repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/comments | jq ".[] | .body")
            if echo "${ISSUE_COMMENTS}" | grep "@github-actions disable-cache"; then
              echo "DISABLE_CACHE=true" >> $GITHUB_OUTPUT
            else
              echo "DISABLE_CACHE=false" >> $GITHUB_OUTPUT
            fi
      - name: Restore from cache
        env:
            NO_CACHE: ${{ fromJson(steps.cache.outputs.no-cache) || fromJson(steps.issue_comment.outputs.DISABLE_CACHE) || fromJson(steps.cache.outputs.deleted_count) > 20 }}
            BOOTSTRAP: ${{ steps.cache.outputs.bootstrap }}
            CONFIGURE: ${{ steps.cache.outputs.configure }}
            EVENT: ${{ github.event_name }}
            DELETED: ${{ steps.cache.outputs.deleted_files }}
        run: |
            .github/scripts/restore-from-prebuilt.sh "`pwd`" \
              "`pwd`/.github/otp.tar.gz" \
              "`pwd`/otp_archive.tar.gz"
      - name: Upload restored cache
        uses: actions/upload-artifact@v4.4.0
        if: runner.debug == 1
        with:
          name: restored-cache
          path: .github/otp.tar.gz
      - name: Build image
        run: |
          docker build --tag otp \
            --build-arg MAKEFLAGS=-j$(($(nproc) + 2)) \
            --file ".github/dockerfiles/Dockerfile.64-bit" \
            .github/
      - name: Build pre-built tar archives
        run: |
          docker run -v $PWD:/github --entrypoint "" otp \
            scripts/build-otp-tar -o /github/otp_clean_src.tar.gz /github/otp_src.tar.gz -b /buildroot/otp/ /github/otp_archive.tar.gz
      - name: Build cache
        run: |
          if [ -f otp_cache.tar.gz ]; then
            gunzip otp_cache.tar.gz
          else
            docker run -v $PWD:/github --entrypoint "" otp \
              bash -c 'cp ../otp_cache.tar /github/'
          fi
          docker run -v $PWD:/github --entrypoint "" otp \
            bash -c 'set -x; C_APPS=$(ls -d ./lib/*/c_src); find Makefile ./make ./erts ./bin/`erts/autoconf/config.guess` ./lib/erl_interface ./lib/jinterface ${C_APPS} `echo "${C_APPS}" | sed -e 's:c_src$:priv:'` -type f -newer README.md \! -name "*.beam" \! -path "*/doc/*" | xargs tar --transform "s:^./:otp/:" -uvf /github/otp_cache.tar'
          gzip otp_cache.tar
      - name: Upload pre-built tar archives
        uses: actions/upload-artifact@v4.4.0
        with:
          name: otp_prebuilt
          path: |
              otp_src.tar.gz
              otp_cache.tar.gz

  build-macos:
    name: Build Erlang/OTP (macOS)
    runs-on: macos-12
    needs: pack
    if: needs.pack.outputs.c-code-changes
    env:
      WXWIDGETS_VERSION: 3.1.5
    steps:
      - uses: actions/checkout@v4.1.7

      - name: Download source archive
        uses: actions/download-artifact@v4.1.8
        with:
          name: otp_prebuilt

      - name: Cache wxWidgets
        id: wxwidgets-cache
        uses: actions/cache@v4.0.2
        with:
          path: wxWidgets
          key: wxWidgets-${{ env.WXWIDGETS_VERSION }}-${{ runner.os }}-${{ hashFiles('.github/scripts/build-macos-wxwidgets.sh')}}-12

      - name: Compile wxWidgets
        if: steps.wxwidgets-cache.outputs.cache-hit != 'true'
        run: .github/scripts/build-macos-wxwidgets.sh

      - name: Compile Erlang
        run: |
          tar -xzf ./otp_src.tar.gz
          export PATH=$PWD/wxWidgets/release/bin:$PATH
          cd otp
          $GITHUB_WORKSPACE/.github/scripts/build-macos.sh build_docs --disable-dynamic-ssl-lib
          tar -czf otp_macos_$(cat OTP_VERSION)_x86-64.tar.gz -C release .

      - name: Test Erlang
        run: |
          cd otp/release
          ./Install -sasl $PWD
          ./bin/erl -noshell -eval 'io:format("~s", [erlang:system_info(system_version)]), halt().'
          ./bin/erl -noshell -eval 'ok = application:start(crypto), io:format("crypto ok~n"), halt().'
          ./bin/erl -noshell -eval '{wx_ref,_,_,_} = wx:new(), io:format("wx ok~n"), halt().'

      - name: Upload tarball
        uses: actions/upload-artifact@v4.4.0
        with:
          name: otp_prebuilt_macos_x86-64
          path: otp/otp_macos_*_x86-64.tar.gz

  build-ios:
    env:
      RELEASE_LIBBEAM: yes
      TARGET_ARCH: aarch64-apple-ios
    name: Build Erlang/OTP (iOS)
    runs-on: macos-12
    needs: pack
    steps:
      - uses: actions/checkout@v4.1.7
      - name: Download source archive
        uses: actions/download-artifact@v4.1.8
        with:
          name: otp_prebuilt

      - name: Compile Erlang
        run: |
          tar -xzf ./otp_src.tar.gz
          cd otp
          $GITHUB_WORKSPACE/.github/scripts/build-macos.sh --xcomp-conf=./xcomp/erl-xcomp-arm64-ios.conf --without-ssl

      - name: Package .xcframework
        run: |
          cd otp
          export BUILD_ARCH=`./erts/autoconf/config.guess`
          export LIBS=`find . -not -path "*${BUILD_ARCH}*" -path "*${TARGET_ARCH}*" -not -name "*_st.a" -not -name "*_r.a" -name "*.a" | awk '{ "basename " $1 | getline name; names[name] = $1 } END { for (n in names) { print names[n] }}'`
          libtool -static -o liberlang.a $LIBS
          xcodebuild -create-xcframework -output ./liberlang.xcframework -library liberlang.a

      - name: Upload framework
        uses: actions/upload-artifact@v4.4.0
        with:
          name: ios_framework_${{ env.TARGET_ARCH }}
          path: otp/liberlang.xcframework

  build-windows:
    defaults:
      run:
        shell: wsl-bash {0}
    env:
      WXWIDGETS_VERSION: 3.1.4
    name: Build Erlang/OTP (Windows)
    runs-on: windows-2022
    needs: pack
    if: needs.pack.outputs.c-code-changes
    steps:
      - uses: Vampire/setup-wsl@v3.1.1
        with:
          distribution: Ubuntu-18.04

      - name: Install WSL dependencies
        run: apt update && apt install -y g++-mingw-w64 gcc-mingw-w64 make autoconf unzip

      - name: Install openssl
        shell: cmd
        run: |
          choco install openssl --version=3.1.1
          IF EXIST "c:\\Program Files\\OpenSSL-Win64" (move "c:\\Program Files\\OpenSSL-Win64" "c:\\OpenSSL-Win64") ELSE (move "c:\\Program Files\\OpenSSL" "c:\\OpenSSL-Win64")

      - name: Cache wxWidgets
        uses: actions/cache@v4.0.2
        with:
          path: wxWidgets
          key: wxWidgets-${{ env.WXWIDGETS_VERSION }}-${{ runner.os }}

      # actions/cache on Windows sometimes does not set cache-hit even though there was one. Setting it manually.
      - name: Set wxWidgets cache
        id: wxwidgets-cache
        env:
          WSLENV: GITHUB_OUTPUT/p
        run: |
          if [ -d wxWidgets ]; then
            echo "cache-hit=true" >> $GITHUB_OUTPUT
          else
            echo "cache-hit=false" >> $GITHUB_OUTPUT
          fi

      - name: Download wxWidgets
        if: steps.wxwidgets-cache.outputs.cache-hit != 'true'
        run: |
          wget https://github.com/wxWidgets/wxWidgets/releases/download/v${{ env.WXWIDGETS_VERSION }}/wxWidgets-${{ env.WXWIDGETS_VERSION }}.zip
          unzip wxWidgets-${{ env.WXWIDGETS_VERSION }}.zip -d wxWidgets
          sed -i -r -e 's/wxUSE_POSTSCRIPT +0/wxUSE_POSTSCRIPT 1/' wxWidgets/include/wx/msw/setup.h
          sed -i -r -e 's/wxUSE_WEBVIEW_EDGE +0/wxUSE_WEBVIEW_EDGE 1/' wxWidgets/include/wx/msw/setup.h

      - name: Install WebView2
        if: steps.wxwidgets-cache.outputs.cache-hit != 'true'
        shell: cmd
        run: |
          cd wxWidgets\\3rdparty
          nuget install Microsoft.Web.WebView2 -Version 1.0.705.50 -Source https://api.nuget.org/v3/index.json
          rename Microsoft.Web.WebView2.1.0.705.50 webview2

      - name: Build wxWidgets
        if: steps.wxwidgets-cache.outputs.cache-hit != 'true'
        shell: cmd
        run: |
          cd wxWidgets\\build\\msw
          call "C:\\Program Files\\Microsoft Visual Studio\\2022\\Enterprise\\VC\Auxiliary\\Build\\vcvars64.bat"
          nmake TARGET_CPU=amd64 BUILD=release SHARED=0 DIR_SUFFIX_CPU= -f makefile.vc

      - name: Download source archive
        uses: actions/download-artifact@v4.1.8
        with:
          name: otp_prebuilt

      - name: Compile Erlang
        run: |
          mkdir -p /mnt/c/opt/local64/pgm/
          cp -R wxWidgets /mnt/c/opt/local64/pgm/wxWidgets-${{ env.WXWIDGETS_VERSION }}
          tar -xzf ./otp_src.tar.gz
          cd otp
          export ERL_TOP=`pwd`
          export MAKEFLAGS=-j$(($(nproc) + 2))
          export ERLC_USE_SERVER=true
          export ERTS_SKIP_DEPEND=true
          eval `./otp_build env_win32 x64`
          ./otp_build configure
          if cat erts/CONF_INFO ||
             grep -v "Static linking with OpenSSL 3.0" lib/*/CONF_INFO ||
             cat lib/*/SKIP ||
             cat lib/SKIP-APPLICATIONS; then
             exit 1
          fi
          ./otp_build boot -a
          ./otp_build release -a
          cp /mnt/c/opt/local64/pgm/wxWidgets-${{ env.WXWIDGETS_VERSION }}/3rdparty/webview2/runtimes/win-x64/native/WebView2Loader.dll $ERL_TOP/release/win32/erts-*/bin/
          ./otp_build installer_win32

      - name: Upload installer
        uses: actions/upload-artifact@v4.4.0
        with:
          name: otp_win32_installer
          path: otp/release/win32/otp*.exe

  build-flavors:
    name: Build Erlang/OTP (Types and Flavors)
    runs-on: ubuntu-latest
    needs: pack
    if: needs.pack.outputs.c-code-changes

    steps:
      - uses: actions/checkout@v4.1.7
      - uses: ./.github/actions/build-base-image
        with:
            BASE_BRANCH: ${{ env.BASE_BRANCH }}
      - name: Build Erlang/OTP flavors and types
        run: |
            TYPES="opt debug lcnt"
            FLAVORS="emu jit"
            for TYPE in ${TYPES}; do
              for FLAVOR in ${FLAVORS}; do
                echo "::group::{TYPE=$TYPE FLAVOR=$FLAVOR}"
                docker run otp "make TYPE=$TYPE FLAVOR=$FLAVOR"
                echo "::endgroup::"
              done
            done

  build:
    name: Build Erlang/OTP
    runs-on: ubuntu-latest
    needs: pack
    if: needs.pack.outputs.c-code-changes

    strategy:
      matrix:
        type: [32-bit,cross-compile,clang]
      fail-fast: false

    steps:
      - uses: actions/checkout@v4.1.7
      - uses: ./.github/actions/build-base-image
        with:
            BASE_BRANCH: ${{ env.BASE_BRANCH }}
            TYPE: ${{ matrix.type }}

  documentation:
    name: Build and check documentation
    runs-on: ubuntu-latest
    needs: pack
    steps:
      - uses: actions/checkout@v4.1.7
      - uses: ./.github/actions/build-base-image
        with:
            BASE_BRANCH: ${{ env.BASE_BRANCH }}

      ## Build all the documentation
      - name: Build documentation
        run: |
          if [ "${{ github.event_name }}" = "pull_request" ]; then
            BASE_URL="${{ github.event.pull_request.head.repo.full_name }}/blob/${{ github.event.pull_request.head.ref }}/"
          else
            BASE_URL="${{ github.repository }}/blob/${{ github.ref_name }}/"
          fi
          docker build --build-arg BASE_URL="$BASE_URL" -t otp - <<EOF
          FROM otp
          ENV BASE_URL=$BASE_URL
          RUN ./otp_build download_ex_doc
          ## Need later jdk to create correct anchors in html docs
          RUN sudo update-java-alternatives -s java-1.11.0-openjdk-amd64
          RUN make release docs release_docs && sudo make install-docs
          EOF
      - name: Release docs to publish
        run: |
            docker run -v $PWD/:/github otp \
              "make release_docs DOC_TARGETS='html man' RELEASE_ROOT=/github/docs"
            sudo chown -R `whoami` docs
            cd docs
            tar czf ../otp_doc_man.tar.gz man
            rm -rf man
            tar czf ../otp_doc_html.tar.gz *
      - name: Upload html documentation archive
        uses: actions/upload-artifact@v4.4.0
        with:
          name: otp_doc_html
          path: otp_doc_html.tar.gz
      - name: Upload man documentation archive
        uses: actions/upload-artifact@v4.4.0
        with:
          name: otp_doc_man
          path: otp_doc_man.tar.gz
      - name: Trigger rebuild of erlang.org/docs/
        if: github.ref_name == 'master' && github.repository == 'erlang/otp'
        env:
          GITHUB_TOKEN: ${{ secrets.TRIGGER_ERLANG_ORG_BUILD }}
        run: |
          curl -H "Authorization: token ${GITHUB_TOKEN}" -X POST -H "Accept: application/vnd.github.v3+json" "https://api.github.com/repos/erlang/erlang-org/actions/workflows/update-gh-cache.yaml/dispatches" -d '{"ref":"master"}'
      - name: Run html link check
        run: docker run -v $PWD/:/github otp "cd /github/docs && /github/scripts/otp_check_html_links.exs"

  static:
    name: Run static analysis
    runs-on: ubuntu-latest
    needs: pack
    steps:
      - uses: actions/checkout@v4.1.7
      - uses: ./.github/actions/build-base-image
        with:
            BASE_BRANCH: ${{ env.BASE_BRANCH }}
        ## Check formatting of cpp code
      - name: Check format
        run: docker run otp "make format-check"
        ## Run dialyzer
      - name: Run dialyzer
        run: docker run -v $PWD/:/github otp '/github/scripts/run-dialyzer'

  test:
    name: Test Erlang/OTP
    runs-on: ubuntu-latest
    needs: pack
    if: needs.pack.outputs.changes != '[]'
    strategy:
      matrix:
        # type: ${{ fromJson(needs.pack.outputs.all) }}
        type: ${{ fromJson(needs.pack.outputs.changes) }}
        # type: ["os_mon","sasl"]
      fail-fast: false
    steps:
      - uses: actions/checkout@v4.1.7
      - uses: ./.github/actions/build-base-image
        with:
            BASE_BRANCH: ${{ env.BASE_BRANCH }}
      - name: Run tests
        id: run-tests
        run: |
          set -x
          mkdir $PWD/make_test_dir
          APP="${{ matrix.type }}"
          ## Need to specialize for epmd, emulator and debug
          case "${APP}" in
            emulator) DIR=erts/emulator/ ;;
            epmd) DIR=erts/epmd ;;
            debug) DIR=lib/os_mon; APP=os_mon; TYPE=debug ;;
            *) DIR=lib/${{ matrix.type }} ;;
          esac
          sudo service apport stop
          sudo bash -c "echo 'core.%p' > /proc/sys/kernel/core_pattern"
          docker run --ulimit core=-1 --ulimit nofile=5000:5000 --pids-limit 1024 \
            -e CTRUN_TIMEOUT=90 -e SPEC_POSTFIX=gh \
            -e TEST_NEEDS_RELEASE=true -e "RELEASE_ROOT=/buildroot/otp/Erlang ∅⊤℞" \
            -e EXTRA_ARGS="-ct_hooks cth_surefire [{path,\"/buildroot/otp/$DIR/make_test_dir/${{ matrix.type }}_junit.xml\"}]" \
            -v "$PWD/make_test_dir:/buildroot/otp/$DIR/make_test_dir" \
            -v "$PWD/scripts:/buildroot/otp/scripts" \
            otp "make TYPE=${TYPE} && make ${APP}_test TYPE=${TYPE}"
          ## Rename os_mon to debug for debug build
          if [ "$APP" != "${{ matrix.type }}" ]; then
            mv make_test_dir/${APP}_test "make_test_dir/${{ matrix.type }}_test"
          fi
      - name: Cleanup tests
        if: ${{ !cancelled() }}
        run: |
          rm -rf make_test_dir/otp || true
          sudo bash -c "chown -R `whoami` make_test_dir && chmod -R +r make_test_dir"
          tar czf ${{ matrix.type }}_test_results.tar.gz make_test_dir
      - name: Upload test results
        uses: actions/upload-artifact@v4.4.0
        if: ${{ !cancelled() }}
        with:
          name: ${{ matrix.type }}_test_results
          path: ${{ matrix.type }}_test_results.tar.gz

  system-test:
    name: Test Erlang/OTP (system)
    runs-on: ubuntu-latest
    if: ${{ !cancelled() }} # Run even if the need has failed
    needs: test
    steps:
      - uses: actions/checkout@v4.1.7
      - uses: ./.github/actions/build-base-image
        with:
            BASE_BRANCH: ${{ env.BASE_BRANCH }}
      - name: Download test results
        uses: actions/download-artifact@v4.1.8
      - name: Merge test results
        run: |
          shopt -s nullglob
          mkdir -p make_test_dir
          for file in *_test_results/*.tar.gz; do
            tar xzf $file
          done
          docker run -v $PWD/make_test_dir:/buildroot/otp/erts/make_test_dir otp \
            "ct_run -refresh_logs /buildroot/otp/erts/make_test_dir"
      - name: Run system tests
        run: |
          docker run --ulimit core=-1 --ulimit nofile=5000:5000 --pids-limit 512 \
            -e CTRUN_TIMEOUT=90 -e SPEC_POSTFIX=gh \
            -e EXTRA_ARGS="-ct_hooks cth_surefire [{path,\"/buildroot/otp/erts/make_test_dir/system_junit.xml\"}]" \
            -e OTP_DAILY_BUILD_TOP_DIR=/buildroot/otp/erts/make_test_dir \
            -v $PWD/make_test_dir:/buildroot/otp/erts/make_test_dir otp \
            "make system_test"
      - name: Cleanup tests
        if: ${{ !cancelled() }}
        run: |
          rm -rf make_test_dir/otp || true
          tar czf test_results.tar.gz make_test_dir
          # Translate file="/buildroot/otp/lib/os_mon/make_test_dir/os_mon_test/cpu_sup_SUITE.erl"
          # to file="lib/os_mon/test/cpu_sup_SUITE.erl"
          sed -i -e 's:file="/buildroot/otp/:file=":g' \
              -e 's:\(file="[^/]*/[^/]*/\)make_test_dir/[^/]*:\1test:g' \
              -e 's:\(file="erts/\)make_test_dir/[^/]*:\1test:g' \
              make_test_dir/*_junit.xml
      - name: Upload test results
        uses: actions/upload-artifact@v4.4.0
        if: ${{ !cancelled() }}
        with:
          name: test_results
          path: test_results.tar.gz
      - name: Upload Test Results
        if: ${{ !cancelled() }}
        uses: actions/upload-artifact@v4.4.0
        with:
          name: Unit Test Results
          path: |
            make_test_dir/*_junit.xml

  ## If this is an "OTP-*" tag that has been pushed we do some release work
  release:
    name: Release Erlang/OTP
    runs-on: ubuntu-latest
    needs: documentation
    if: startsWith(github.ref, 'refs/tags/OTP-') && github.repository == 'erlang/otp'
    ## Needed to create releases
    permissions:
      contents: write
    steps:
      ## This step outputs the tag name and whether the tag is a release or patch
      ## (all releases have only two version identifiers, while patches have three
      ##  or more)
      - name: Get Tag Name
        id: tag
        run: |
          TAG=${GITHUB_REF#refs/tags/}
          VSN=${TAG#OTP-}
          echo "tag=${TAG}" >> $GITHUB_OUTPUT
          echo "vsn=${VSN}" >> $GITHUB_OUTPUT

      - uses: actions/checkout@v4.1.7

      ## Publish the pre-built archive and docs
      - name: Download source archive
        uses: actions/download-artifact@v4.1.8
        with:
          name: otp_prebuilt
      - name: Download html docs
        uses: actions/download-artifact@v4.1.8
        with:
          name: otp_doc_html
      - name: Download man docs
        uses: actions/download-artifact@v4.1.8
        with:
          name: otp_doc_man

      ## We add the correct version name into the file names
      ## and create the hash files for all assets
      - name: Create pre-build and doc archives
        run: .github/scripts/create-artifacts.sh artifacts ${{ steps.tag.outputs.tag }}

      ## Create hash files
      - name: Create pre-build and doc archives
        run: |
          shopt -s nullglob
          cd artifacts
          FILES=$(ls {*.tar.gz,*.txt})
          md5sum $FILES > MD5.txt
          sha256sum $FILES > SHA256.txt

      - name: Upload pre-built and doc tar archives
        uses: softprops/action-gh-release@v2.0.8
        with:
          name: OTP ${{ steps.tag.outputs.vsn }}
          files: |
            artifacts/*.tar.gz
            artifacts/*.txt
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Deploy on erlang.org
        env:
          GITHUB_TOKEN: ${{ secrets.TRIGGER_ERLANG_ORG_BUILD }}
        run: |
          curl -H "Authorization: token ${GITHUB_TOKEN}" -X POST -H "Accept: application/vnd.github.v3+json" "https://api.github.com/repos/erlang/erlang-org/actions/workflows/update-gh-cache.yaml/dispatches" -d '{"ref":"master"}'

  event_file:
    name: "Event File"
    runs-on: ubuntu-latest
    steps:
      - name: Upload
        uses: actions/upload-artifact@v4.4.0
        with:
          name: Event File
          path: ${{ github.event_path }}