# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: 2021 The Elixir Team

name: Release

on:
  push:
    branches:
      - main
      - v*.*
    tags:
      - v*

env:
  ELIXIR_OPTS: "--warnings-as-errors"
  LANG: C.UTF-8

permissions:
  contents: read

jobs:
  create_draft_release:
    runs-on: ubuntu-22.04
    permissions:
      contents: write
    env:
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: Create draft release
        if: github.ref_type != 'branch'
        run: |
          gh release create \
            --repo ${{ github.repository }} \
            --title ${{ github.ref_name }} \
            --notes '' \
            --draft \
            ${{ github.ref_name }}

      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        if: github.ref_type == 'branch'
        with:
          fetch-depth: 50

      - name: Update ${{ github.ref_name }}-latest
        if: github.ref_type == 'branch'
        run: |
          ref_name=${{ github.ref_name }}-latest

          if ! gh release view $ref_name; then
            gh release create \
              --latest=false \
              --title $ref_name \
              --notes "Automated release for latest ${{ github.ref_name }}." \
              $ref_name
          fi

          git tag $ref_name --force
          git push origin $ref_name --force

  build:
    name: "Build Elixir"

    strategy:
      fail-fast: true
      matrix:
        include:
          - otp: 26
            otp_version: "26.0"
          - otp: 27
            otp_version: "27.0"
          - otp: 28
            otp_version: "28.0"
            build_docs: build_docs

    runs-on: ubuntu-22.04

    steps:
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          fetch-depth: 50

      - name: "Build Release"
        uses: ./.github/workflows/release_pre_built
        with:
          otp_version: ${{ matrix.otp_version }}
          otp: ${{ matrix.otp }}
          build_docs: ${{ matrix.build_docs }}

      - name: Create Docs Hashes
        if: matrix.build_docs
        run: |
          shasum -a 1   Docs.zip > Docs.zip.sha1sum
          shasum -a 256 Docs.zip > Docs.zip.sha256sum

      - name: "Upload linux release artifacts"
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: build-linux-elixir-otp-${{ matrix.otp }}
          path: elixir-otp-${{ matrix.otp }}.zip

      - name: "Upload windows release artifacts"
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: build-windows-elixir-otp-${{ matrix.otp }}
          path: elixir-otp-${{ matrix.otp }}.exe

      - name: "Upload doc artifacts"
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        if: matrix.build_docs
        with:
          name: Docs
          path: Docs.zip*

  sign:
    needs: [build]
    environment: release
    strategy:
      fail-fast: true
      matrix:
        otp: [26, 27, 28]
        flavor: [windows, linux]

    env:
      RELEASE_FILE: elixir-otp-${{ matrix.otp }}.${{ matrix.flavor == 'linux' && 'zip' || 'exe' }}

    runs-on: ${{ matrix.flavor == 'linux' && 'ubuntu-22.04' || 'windows-2022' }}

    permissions:
      contents: write
      id-token: write

    steps:
      - name: "Download build"
        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
        with:
          name: build-${{ matrix.flavor }}-elixir-otp-${{ matrix.otp }}

      - name: Log in to Azure
        if: ${{ matrix.flavor == 'windows' && vars.AZURE_TRUSTED_SIGNING_ACCOUNT_NAME }}
        uses: azure/login@a457da9ea143d694b1b9c7c869ebb04ebe844ef5 # v2.3.0
        with:
          client-id: ${{ secrets.AZURE_CLIENT_ID }}
          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
          subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
      - name: "Sign files with Trusted Signing"
        uses: azure/trusted-signing-action@0d74250c661747df006298d0fb49944c10f16e03 # v0.5.1
        if: ${{ matrix.flavor == 'windows' && vars.AZURE_TRUSTED_SIGNING_ACCOUNT_NAME }}
        with:
          endpoint: https://eus.codesigning.azure.net/
          trusted-signing-account-name: ${{ vars.AZURE_TRUSTED_SIGNING_ACCOUNT_NAME }}
          certificate-profile-name: ${{ vars.AZURE_CERTIFICATE_PROFILE_NAME }}
          files-folder: ${{ github.workspace }}
          files-folder-filter: exe
          file-digest: SHA256
          timestamp-rfc3161: http://timestamp.acs.microsoft.com
          timestamp-digest: SHA256

      - name: Create Release Hashes
        if: matrix.flavor == 'windows'
        shell: pwsh
        run: |
          $sha1 = Get-FileHash "$env:RELEASE_FILE" -Algorithm SHA1
          $sha1.Hash.ToLower() + "  " + $env:RELEASE_FILE | Out-File "$env:RELEASE_FILE.sha1sum"

          $sha256 = Get-FileHash "$env:RELEASE_FILE" -Algorithm SHA256
          $sha256.Hash.ToLower() + "  " + $env:RELEASE_FILE | Out-File "$env:RELEASE_FILE.sha256sum"

      - name: Create Release Hashes
        if: matrix.flavor == 'linux'
        shell: bash
        run: |
          shasum -a 1   "$RELEASE_FILE" > "${RELEASE_FILE}.sha1sum"
          shasum -a 256 "$RELEASE_FILE" > "${RELEASE_FILE}.sha256sum"

      - name: "Upload linux release artifacts"
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: sign-${{ matrix.flavor }}-elixir-otp-${{ matrix.otp }}
          path: ${{ env.RELEASE_FILE }}*

  sbom:
    name: Generate SBoM

    needs: [build, sign]

    runs-on: ubuntu-24.04

    permissions:
      contents: write
      id-token: write
      attestations: write

    steps:
      - name: Use HTTPS instead of SSH for Git cloning
        id: git-config
        shell: bash
        run: git config --global url.https://github.com/.insteadOf ssh://git@github.com/

      - name: Checkout project
        id: checkout
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

      - name: "Download Build Artifacts"
        id: download-build-artifacts
        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
        with:
          pattern: "{sign-*-elixir-otp-*,Docs}"
          merge-multiple: true
          path: /tmp/build-artifacts/

      - name: "Run OSS Review Toolkit"
        id: ort
        uses: ./.github/workflows/ort
        with:
          report-formats: "CycloneDx,SpdxDocument"
          version: "${{ github.ref_type	== 'tag' && github.ref_name || github.sha }}"

      - name: Attest Distribution Assets with SBoM
        id: attest-sbom
        uses: actions/attest-sbom@115c3be05ff3974bcbd596578934b3f9ce39bf68 # v2.2.0
        with:
          subject-path: |
            /tmp/build-artifacts/{elixir-otp-*.*,Docs.zip}
            ${{ steps.ort.outputs.results-sbom-cyclonedx-xml-path }}
            ${{ steps.ort.outputs.results-sbom-cyclonedx-json-path }}
            ${{ steps.ort.outputs.results-sbom-spdx-yml-path }}
            ${{ steps.ort.outputs.results-sbom-spdx-json-path }}
          sbom-path: "${{ steps.ort.outputs.results-sbom-spdx-json-path }}"

      - name: "Copy SBoM provenance"
        id: sbom-provenance
        shell: bash
        run: |
          mkdir attestations

          for FILE in /tmp/build-artifacts/{elixir-otp-*.*,Docs.zip}; do
            cp "$ATTESTATION" "attestations/$(basename "$FILE").sigstore"
          done

          cp "$ATTESTATION" "attestations/$(basename "${{ steps.ort.outputs.results-sbom-cyclonedx-xml-path }}").sigstore"
          cp "$ATTESTATION" "attestations/$(basename "${{ steps.ort.outputs.results-sbom-cyclonedx-json-path }}").sigstore"
          cp "$ATTESTATION" "attestations/$(basename "${{ steps.ort.outputs.results-sbom-spdx-yml-path }}").sigstore"
          cp "$ATTESTATION" "attestations/$(basename "${{ steps.ort.outputs.results-sbom-spdx-json-path }}").sigstore"
        env:
          ATTESTATION: "${{ steps.attest-sbom.outputs.bundle-path }}"

      - name: "Assemble Release SBoM Artifacts"
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: "SBoM"
          path: |
            ${{ steps.ort.outputs.results-sbom-cyclonedx-xml-path }}
            ${{ steps.ort.outputs.results-sbom-cyclonedx-json-path }}
            ${{ steps.ort.outputs.results-sbom-spdx-yml-path }}
            ${{ steps.ort.outputs.results-sbom-spdx-json-path }}

      - name: "Assemble Distribution Attestations"
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: "Attestations"
          path: "attestations/*.sigstore"

  upload-release:
    needs: [create_draft_release, build, sign, sbom]
    runs-on: ubuntu-22.04

    permissions:
      contents: write

    steps:
      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
        with:
          pattern: "{sign-*-elixir-otp-*,Docs,SBoM,Attestations}"
          merge-multiple: true

      - name: Upload Pre-built
        shell: bash
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          if [ "${{ github.ref_type }}" == "branch" ]; then
            tag=${{ github.ref_name }}-latest
          else
            tag="${{ github.ref_name }}"
          fi

          gh release upload \
            --repo ${{ github.repository }} \
            --clobber \
            "$tag" \
            elixir-otp-*.zip \
            elixir-otp-*.zip.sha{1,256}sum \
            elixir-otp-*.zip.sigstore \
            elixir-otp-*.exe \
            elixir-otp-*.exe.sha{1,256}sum \
            elixir-otp-*.exe.sigstore \
            Docs.zip \
            Docs.zip.sha{1,256}sum \
            Docs.zip.sigstore \
            bom.*

  upload-builds-hex-pm:
    needs: [build, sign]
    runs-on: ubuntu-22.04
    concurrency: builds-hex-pm
    environment: release
    env:
      AWS_ACCESS_KEY_ID: ${{ secrets.HEX_AWS_ACCESS_KEY_ID }}
      AWS_SECRET_ACCESS_KEY: ${{ secrets.HEX_AWS_SECRET_ACCESS_KEY }}
      AWS_REGION: ${{ vars.HEX_AWS_REGION }}
      AWS_S3_BUCKET: ${{ vars.HEX_AWS_S3_BUCKET }}
    steps:
      - name: "Check if variables are set up"
        if: "${{ ! vars.HEX_AWS_REGION }}"
        run: |
          echo "Required variables for uploading to hex.pm are not set up, skipping..."
          exit 1

      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
        with:
          pattern: "{sign-*-elixir-otp-*,Docs}"
          merge-multiple: true

      - name: Init purge keys file
        run: |
          touch purge_keys.txt

      - name: Upload Precompiled to S3
        run: |
          ref_name=${{ github.ref_name }}

          oldest_otp=$(find . -type f -name 'elixir-otp-*.zip' | sed -r 's/^.*elixir-otp-([[:digit:]]+)\.zip$/\1/' | sort -n | head -n 1)

          for zip in $(find . -type f -name 'elixir-otp-*.zip' | sed 's/^\.\///'); do
            dest=${zip/elixir/${ref_name}}
            surrogate_key=${dest/.zip$/}

            aws s3 cp "${zip}" "s3://${AWS_S3_BUCKET}/builds/elixir/${dest}" \
              --cache-control "public,max-age=3600" \
              --metadata "{\"surrogate-key\":\"builds builds/elixir builds/elixir/${surrogate_key}\",\"surrogate-control\":\"public,max-age=604800\"}"
            echo "builds/elixir/${surrogate_key}" >> purge_keys.txt

            if [ "$zip" == "elixir-otp-${oldest_otp}.zip" ]; then
              aws s3 cp "${zip}" "s3://${AWS_S3_BUCKET}/builds/elixir/${ref_name}.zip" \
                --cache-control "public,max-age=3600" \
                --metadata "{\"surrogate-key\":\"builds builds/elixir builds/elixir/${ref_name}\",\"surrogate-control\":\"public,max-age=604800\"}"
              echo builds/elixir/${ref_name} >> purge_keys.txt
            fi
          done

      - name: Upload Docs to S3
        run: |
          version=$(echo ${{ github.ref_name }} | sed -e 's/^v//g')

          unzip Docs.zip

          for f in doc/*; do
            if [ -d "$f" ]; then
              app=$(echo "$f" | sed s/"doc\/"//)
              tarball="${app}-${version}.tar.gz"
              surrogate_key="docs/${app}-${version}"

              tar -czf "${tarball}" -C "doc/${app}" .
              aws s3 cp "${tarball}" "s3://${AWS_S3_BUCKET}/docs/${tarball}" \
                --cache-control "public,max-age=3600" \
                --metadata "{\"surrogate-key\":\"${surrogate_key}\",\"surrogate-control\":\"public,max-age=604800\"}"
              echo "${surrogate_key}" >> ../purge_keys.txt
            fi
          done

      - name: Update builds txt
        run: |
          date="$(date -u '+%Y-%m-%dT%H:%M:%SZ')"
          ref_name=${{ github.ref_name }}

          oldest_otp=$(find . -name 'elixir-otp-*.zip.sha256sum' | sed -r 's/^.*elixir-otp-([[:digit:]]+)\.zip\.sha256sum$/\1/' | sort -n | head -n 1)

          aws s3 cp "s3://${AWS_S3_BUCKET}/builds/elixir/builds.txt" builds.txt || true
          touch builds.txt

          for sha256_file in $(find . -name 'elixir-otp-*.zip.sha256sum' | sed 's/^\.\///'); do
            otp_version=$(echo "${sha256_file}" | sed -r 's/^elixir-otp-([[:digit:]]+)\.zip\.sha256sum/otp-\1/')
            build_sha256=$(cut -d ' ' -f 1 "${sha256_file}")

            sed -i "/^${ref_name}-${otp_version} /d" builds.txt
            echo -e "${ref_name}-${otp_version} ${{ github.sha }} ${date} ${build_sha256} \n$(cat builds.txt)" > builds.txt

            if [ "${otp_version}" == "otp-${oldest_otp}" ]; then
              sed -i "/^${ref_name} /d" builds.txt
              echo -e "${ref_name} ${{ github.sha }} ${date} ${build_sha256} \n$(cat builds.txt)" > builds.txt
            fi
          done

          sort -u -k1,1 -o builds.txt builds.txt
          aws s3 cp builds.txt "s3://${AWS_S3_BUCKET}/builds/elixir/builds.txt" \
            --cache-control "public,max-age=3600" \
            --metadata '{"surrogate-key":"builds builds/elixir builds/elixir/txt","surrogate-control":"public,max-age=604800"}'

          echo 'builds/elixir/txt' >> purge_keys.txt

      - name: Flush cache
        if: github.repository == 'elixir-lang/elixir'
        run: |
          function purge_key() {
            curl \
               -X POST \
               -H "Fastly-Key: ${FASTLY_KEY}" \
               -H "Accept: application/json" \
               -H "Content-Length: 0" \
               "https://api.fastly.com/service/$1/purge/$2"
          }

          function purge() {
            purge_key ${FASTLY_REPO_SERVICE_ID} $1
            purge_key ${FASTLY_BUILDS_SERVICE_ID} $1
            sleep 2
            purge_key ${FASTLY_REPO_SERVICE_ID} $1
            purge_key ${FASTLY_BUILDS_SERVICE_ID} $1
            sleep 2
            purge_key ${FASTLY_REPO_SERVICE_ID} $1
            purge_key ${FASTLY_BUILDS_SERVICE_ID} $1
          }

          for key in $(cat purge_keys.txt); do
            purge "${key}"
          done
        env:
          FASTLY_REPO_SERVICE_ID: ${{ secrets.HEX_FASTLY_REPO_SERVICE_ID }}
          FASTLY_BUILDS_SERVICE_ID: ${{ secrets.HEX_FASTLY_BUILDS_SERVICE_ID }}
          FASTLY_KEY: ${{ secrets.HEX_FASTLY_KEY }}