name: Build Terraform CLI Packages

# If you want to test changes to this file before merging to a main branch,
# push them up to a branch whose name has the prefix "build-workflow-dev/",
# which is a special prefix that triggers this workflow even though it's not
# actually a release branch.

on:
  workflow_dispatch:
  push:
    branches:
      - main
      - 'v[0-9]+.[0-9]+'
      - build-workflow-dev/*
    tags:
      - 'v[0-9]+.[0-9]+.[0-9]+*'

env:
  PKG_NAME: "terraform"

jobs:
  get-product-version:
    name: "Determine intended Terraform version"
    runs-on: ubuntu-latest
    outputs:
      product-version: ${{ steps.get-product-version.outputs.product-version }}
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0 # Need all commits and tags to find a reasonable version number
      - name: Decide version number
        id: get-product-version
        run: |
          git describe --first-parent
          echo "::set-output name=product-version::$(git describe --first-parent)"

  get-go-version:
    name: "Determine Go toolchain version"
    runs-on: ubuntu-latest
    outputs:
      go-version: ${{ steps.get-go-version.outputs.go-version }}
    steps:
      - uses: actions/checkout@v2
      - name: Determine Go version
        id: get-go-version
        # We use .go-version as our source of truth for current Go
        # version, because "goenv" can react to it automatically.
        run: |
          echo "Building with Go $(cat .go-version)"
          echo "::set-output name=go-version::$(cat .go-version)"

  generate-metadata-file:
    name: "Generate release metadata"
    needs: get-product-version
    runs-on: ubuntu-latest
    outputs:
      filepath: ${{ steps.generate-metadata-file.outputs.filepath }}
    steps:
      - uses: actions/checkout@v2
      - name: Generate package metadata
        id: generate-metadata-file
        uses: hashicorp/actions-generate-metadata@main
        with:
          version: ${{ needs.get-product-version.outputs.product-version }}
          product: ${{ env.PKG_NAME }}

      - uses: actions/upload-artifact@v2
        with:
          name: metadata.json
          path: ${{ steps.generate-metadata-file.outputs.filepath }}

  build:
    needs: ["get-product-version", "get-go-version"]
    runs-on: ubuntu-latest
    strategy:
      matrix:
        include:
          - {goos: "freebsd", goarch: "386"}
          - {goos: "freebsd", goarch: "amd64"}
          - {goos: "freebsd", goarch: "arm"}
          - {goos: "linux", goarch: "386"}
          - {goos: "linux", goarch: "amd64"}
          - {goos: "linux", goarch: "arm"}
          - {goos: "linux", goarch: "arm64"}
          - {goos: "openbsd", goarch: "386"}
          - {goos: "openbsd", goarch: "amd64"}
          - {goos: "solaris", goarch: "amd64"}
          - {goos: "windows", goarch: "386"}
          - {goos: "windows", goarch: "amd64"}
      fail-fast: false

    name: Build for ${{ matrix.goos }}_${{ matrix.goarch }}

    steps:
      - uses: actions/checkout@v2

      - name: Install Go toolchain
        uses: actions/setup-go@v2
        with:
          go-version: ${{ needs.get-go-version.outputs.go-version }}

      - name: Build
        env:
          GOOS: ${{ matrix.goos }}
          GOARCH: ${{ matrix.goarch }}
        run: |
          mkdir dist out
          go build -o dist/ .
          zip -r -j out/${{ env.PKG_NAME }}_${{ needs.get-product-version.outputs.product-version }}_${{ matrix.goos }}_${{ matrix.goarch }}.zip dist/

      - uses: actions/upload-artifact@v2
        with:
          name: ${{ env.PKG_NAME }}_${{ needs.get-product-version.outputs.product-version }}_${{ matrix.goos }}_${{ matrix.goarch }}.zip
          path: out/${{ env.PKG_NAME }}_${{ needs.get-product-version.outputs.product-version }}_${{ matrix.goos }}_${{ matrix.goarch }}.zip

      - name: Linux distribution packages
        if: ${{ matrix.goos == 'linux' }}
        uses: hashicorp/package@v1
        with:
          name: "terraform"
          description: "Terraform enables you to safely and predictably create, change, and improve infrastructure. It is an open source tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned."
          arch: ${{ matrix.goarch }}
          version: ${{ needs.get-product-version.outputs.product-version }}
          maintainer: "HashiCorp"
          homepage: "https://terraform.io/"
          license: "MPL-2.0"
          binary: "dist/${{ env.PKG_NAME }}"
          deb_depends: "git"
          rpm_depends: "git"

      - name: Gather Linux distribution package filenames
        if: ${{ matrix.goos == 'linux' }}
        run: |
          echo "RPM_PACKAGE=$(basename out/*.rpm)" >> $GITHUB_ENV
          echo "DEB_PACKAGE=$(basename out/*.deb)" >> $GITHUB_ENV

      - uses: actions/upload-artifact@v2
        if: ${{ matrix.goos == 'linux' }}
        with:
          name: ${{ env.RPM_PACKAGE }}
          path: out/${{ env.RPM_PACKAGE }}

      - uses: actions/upload-artifact@v2
        if: ${{ matrix.goos == 'linux' }}
        with:
          name: ${{ env.DEB_PACKAGE }}
          path: out/${{ env.DEB_PACKAGE }}

  build-darwin:
    needs: ["get-product-version", "get-go-version"]
    runs-on: macos-latest
    strategy:
      matrix:
        include:
          - {goos: "darwin", goarch: "amd64"}
          - {goos: "darwin", goarch: "arm64"}
      fail-fast: false

    name: Build for ${{ matrix.goos }}_${{ matrix.goarch }}

    env:
      GOOS: ${{ matrix.goos }}
      GOARCH: ${{ matrix.goarch }}

    steps:
      - uses: actions/checkout@v2

      - name: Install Go toolchain
        uses: actions/setup-go@v2
        with:
          go-version: ${{ needs.get-go-version.outputs.go-version }}

      - name: Build
        run: |
          mkdir dist out
          go build -o dist/
          zip -r -j out/${{ env.PKG_NAME }}_${{ needs.get-product-version.outputs.product-version }}_${{ matrix.goos }}_${{ matrix.goarch }}.zip dist/

      - uses: actions/upload-artifact@v2
        with:
          name: ${{ env.PKG_NAME }}_${{ needs.get-product-version.outputs.product-version }}_${{ matrix.goos }}_${{ matrix.goarch }}.zip
          path: out/${{ env.PKG_NAME }}_${{ needs.get-product-version.outputs.product-version }}_${{ matrix.goos }}_${{ matrix.goarch }}.zip

  build-docker:
    name: Build Docker image for linux_${{ matrix.arch }}
    needs:
      - get-product-version
      - build
    runs-on: ubuntu-latest
    strategy:
      matrix:
        arch: ["amd64"]
      fail-fast: false
    env:
      repo: ${{github.event.repository.name}}
      version: ${{needs.get-product-version.outputs.product-version}}

    steps:
      - uses: actions/checkout@v2
      - name: Build Docker images
        uses: hashicorp/actions-docker-build@v1
        with:
          version: ${{env.version}}
          target: default
          arch: ${{matrix.arch}}
          dockerfile: .github/workflows/build-Dockerfile
          tags: |
            docker.io/hashicorp/${{env.repo}}:${{env.version}}
            986891699432.dkr.ecr.us-east-1.amazonaws.com/hashicorp/${{env.repo}}:${{env.version}}