ci.yml

name: CI

on:
  push:
    branches: [main]
  schedule:
    - cron: '0 16 * * *'

jobs:
  setup-env:
    # Prepare common variables: date, timestamp, repo, and short SHA
    runs-on: ubuntu-24.04
    if: github.event_name == 'schedule' || github.event_name == 'push'
    outputs:
      date: ${{ steps.vars.outputs.date }}
      date_time: ${{ steps.vars.outputs.date_time }}
      source_date_epoch: ${{ steps.vars.outputs.source_date_epoch }}
      repo: ${{ steps.vars.outputs.repo }}
      short_sha: ${{ steps.vars.outputs.short_sha }}
    steps:
      - name: Generate common variables
        id: vars
        run: |
          now=$(date +%s)
          date=$(date -u -d "@$now" '+%Y-%m-%d')
          date_time=$(date -u -d "@$now" '+%Y-%m-%d.%H-%M-%S')
          year_month=$(date -u -d "@$now" '+%Y-%m')
          source_date_epoch=$(date -u -d "${year_month}-01 00:00:00" '+%s')
          echo "date=$date" >> $GITHUB_OUTPUT
          echo "date_time=$date_time" >> $GITHUB_OUTPUT
          echo "source_date_epoch=$source_date_epoch" >> $GITHUB_OUTPUT
          echo "repo=${GITHUB_REPOSITORY,,}" >> $GITHUB_OUTPUT
          echo "short_sha=${GITHUB_SHA:0:8}" >> $GITHUB_OUTPUT

  build-matrix:
    needs: setup-env
    runs-on: ${{ matrix.runner }}
    strategy:
      matrix:
        include:
          - platform: amd64
            runner: ubuntu-24.04
          - platform: arm64
            runner: ubuntu-24.04-arm
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Cache Go modules
        uses: actions/cache@v4
        with:
          path: ~/.cache/go-build
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version: '1.24'
          check-latest: true

      - name: Install dependencies
        run: go mod download

      - name: Run tests
        run: go test ./...

      - name: Build static binary
        env:
          CGO_ENABLED: 0
          GOOS: linux
          GOARCH: ${{ matrix.platform }}
          SOURCE_DATE_EPOCH: ${{ needs.setup-env.outputs.source_date_epoch }}
        run: |
          mkdir -p build
          go build -ldflags="-s -w -buildid= " -o build/promptpipe-${{ matrix.platform }} ./cmd/PromptPipe

      - name: Upload built binary
        uses: actions/upload-artifact@v4
        with:
          name: binaries-${{ matrix.platform }}
          path: build/promptpipe-${{ matrix.platform }}
      
  docker-build:
    needs: [setup-env, build-matrix]
    runs-on: ubuntu-24.04
    if: github.event_name == 'schedule' || (github.event_name == 'push' && contains(github.event.head_commit.message, 'run-ci'))
    permissions:
      packages: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Download amd64 binary
        uses: actions/download-artifact@v4
        with:
          name: binaries-amd64
          path: docker/artifacts
      - name: Download arm64 binary
        uses: actions/download-artifact@v4
        with:
          name: binaries-arm64
          path: docker/artifacts

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push multi-arch image
        uses: docker/build-push-action@v6
        env:
          SOURCE_DATE_EPOCH: ${{ needs.setup-env.outputs.source_date_epoch }}
        with:
          context: docker
          file: docker/Dockerfile
          platforms: linux/amd64,linux/arm64
          tags: |
            ghcr.io/${{ needs.setup-env.outputs.repo }}:latest
            ghcr.io/${{ needs.setup-env.outputs.repo }}:${{ needs.setup-env.outputs.date }}
            ghcr.io/${{ needs.setup-env.outputs.repo }}:${{ needs.setup-env.outputs.date }}.${{ needs.setup-env.outputs.short_sha }}
            ghcr.io/${{ needs.setup-env.outputs.repo }}:${{ needs.setup-env.outputs.date_time }}
            ghcr.io/${{ needs.setup-env.outputs.repo }}:${{ needs.setup-env.outputs.date_time }}.${{ needs.setup-env.outputs.short_sha }}
          outputs: "type=registry,compression=zstd,force-compression=true,compression-level=3,rewrite-timestamp=true,oci-mediatypes=true"

  release:
    needs: [setup-env, build-matrix]
    runs-on: ubuntu-24.04
    if: github.event_name == 'schedule' || (github.event_name == 'push' && contains(github.event.head_commit.message, 'run-ci'))
    permissions:
      contents: write
    steps:
      - name: Download amd64 binary
        uses: actions/download-artifact@v4
        with:
          name: binaries-amd64
          path: release/artifacts
      - name: Download arm64 binary
        uses: actions/download-artifact@v4
        with:
          name: binaries-arm64
          path: release/artifacts
      - name: Set release version
        id: version
        run: |
          ver="${{ needs.setup-env.outputs.date_time }}.${{ needs.setup-env.outputs.short_sha }}"
          echo "version=$ver" >> $GITHUB_OUTPUT
      - name: Create or update GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.version.outputs.version }}
          target_commitish: ${{ github.sha }}
          files: |
            release/artifacts/*