build.yml

name: Build Debian Package

on:
  repository_dispatch:
    types: [release-tagged]
  workflow_dispatch:
    inputs:
        tag:
            description: 'Version to build'
            required: true
            default: 'v1.0.0'
        project: 
            description: 'Project to build'
            required: true
            default: 'renterd'

jobs:
  build:
      runs-on: ubuntu-latest
      steps:
        - name: Store input in env
          run: |
            if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
              echo "RELEASE_TAG=${{ github.event.inputs.tag }}" >> $GITHUB_ENV
              echo "PROJECT=${{ github.event.inputs.project }}" >> $GITHUB_ENV
            elif [ "${{ github.event_name }}" = "repository_dispatch" ]; then
              echo "RELEASE_TAG=${{ github.event.client_payload.tag }}" >> $GITHUB_ENV
              echo "PROJECT=${{ github.event.client_payload.project }}" >> $GITHUB_ENV
            fi
            echo "Building ${{ env.PROJECT}} .deb packages for tag ${{ env.RELEASE_TAG }}"

        - name: Checkout packages
          uses: actions/checkout@v3

        - name: Checkout src code into tmp folder
          uses: actions/checkout@v3
          with:
            repository: SiaFoundation/${{ env.PROJECT }}
            ref: ${{ env.RELEASE_TAG }}
            path: "tmp"

        - name: Build .deb Package
          run: |
            TAG=${{ env.RELEASE_TAG }}
            VERSION=${TAG:1}

            # Move into the tmp directory
            cd tmp

            go generate ./...
            for arch in amd64 arm64; do
                BUILD_NAME=${{ env.PROJECT }}_${VERSION}_${arch}

                # Create the directory structure for the .deb package
                mkdir -p ${BUILD_NAME}/DEBIAN
                mkdir -p ${BUILD_NAME}/usr/bin

                # Build the ${{ env.PROJECT }} binary
                GOOS=linux GOARCH=${arch} go build -tags='netgo' -o ${BUILD_NAME}/usr/bin/${{ env.PROJECT }} -a -ldflags='-s -w' ./cmd/${{ env.PROJECT }}

                # Create the control file
                echo "Package: ${{ env.PROJECT }}" > ${BUILD_NAME}/DEBIAN/control
                echo "Version: $VERSION" >> ${BUILD_NAME}/DEBIAN/control
                echo "Architecture: ${arch}" >> ${BUILD_NAME}/DEBIAN/control
                echo "Maintainer: The Sia Foundation <hello@sia.tech>" >> ${BUILD_NAME}/DEBIAN/control
                echo "Description: Renterd: The Next-Gen Sia Renter" >> ${BUILD_NAME}/DEBIAN/control
                echo "Homepage: https://github.com/SiaFoundation/${{ env.PROJECT }}" >> ${BUILD_NAME}/DEBIAN/control
            
                # Build the .deb file
                echo "Building ${BUILD_NAME}.deb"
                dpkg-deb --build ${BUILD_NAME}

                # Move the .deb file, deleting the old one in the process
                rm ../debian/pool/main/${{ env.PROJECT }}/*
                mv ${BUILD_NAME}.deb ../debian/pool/main/${{ env.PROJECT }}/

                # Remove the temporary folders
                rm -rf ${BUILD_NAME}

                # Update the Packages file
                mkdir -p debian/dists/stable/main/binary-${arch}
                dpkg-scanpackages ../debian/pool/main/ | gzip -c > debian/dists/stable/main/binary-${arch}/Packages.gz
            done

            # Move out of tmp and delete it
            cd ../
            rm -rf src

            find ../

        - name: Create Pull Request
          uses: peter-evans/create-pull-request@v5.0.2
          with:
            token: ${{ secrets.GITHUB_TOKEN }}
            commit-message: '${{ env.PROJECT }}: ${{ env.RELEASE_TAG }}'
            title: '${{ env.PROJECT }}: ${{ env.RELEASE_TAG }}'
            body: 'This is an automated PR to update ${{ env.PROJECT }} to ${{ env.RELEASE_TAG }}'
            branch: ${{ env.PROJECT }}/update
            base: master