build-ff.yml

name: "Build Firefox"

on:
    push:
        branches:
            - "release"
    pull_request:
        branches:
            - "release"

env:
    SCCACHE_VERSION: "0.5.4"
    DEPS_CACHE: |
      ~/.mozbuild
      /usr/local/bin/sccache

concurrency:
    group: ${{ github.ref }}
    cancel-in-progress: ${{ github.ref != 'refs/heads/release' }}
      
jobs:
    build:
        strategy:
            matrix:
                os: [ubuntu-latest]
        runs-on: ${{ matrix.os }}
        steps:
            - name: Checkout source tree
              uses: actions/checkout@v3

            - name: Restore dependency cache
              id: deps-cache
              uses: actions/cache/restore@v3
              with:
                path: ${{ env.DEPS_CACHE }}
                key: deps-${{ matrix.os }}

            - name: Install dependencies
              run: |
                sudo apt-get install -y curl \
                                   python3 \
                                   python3-pip

                if [ ! -f "/usr/local/bin/sccache" ]; then
                  curl -L https://github.com/mozilla/sccache/releases/download/v${{ env.SCCACHE_VERSION }}/sccache-v${{ env.SCCACHE_VERSION }}-$(uname -m)-unknown-linux-musl.tar.gz | tar -xzf -
                  sudo mv sccache-v${{ env.SCCACHE_VERSION }}-$(uname -m)-unknown-linux-musl/sccache /usr/local/bin/
                fi

                ./mach --no-interactive bootstrap --application-choice browser

            - name: Cache dependencies
              uses: actions/cache/save@v3
              with:
                path: ${{ env.DEPS_CACHE }}
                key: ${{ steps.deps-cache.outputs.cache-primary-key }}
  

            - name: Configure the build
              run: |
                touch mozconfig
                # todo: work out why we can't build without this
                echo "ac_add_options --without-wasm-sandboxed-libraries" >> mozconfig
                echo "ac_add_options --with-ccache=sccache" >> mozconfig

            - name: Build the source tree
              run: |
                echo "Compilation started at $(date '+%a %d %b %Y %H:%M:%S %Z')."
                ./mach build

            - name: Configure build cache
              if: ${{ github.ref == 'refs/heads/release' }}
              run: |
                echo "FF_VERSION=$(cat browser/config/version.txt)" >> "$GITHUB_ENV"
                echo "ARCHIVE_NAME=$(echo firefox-$(cat browser/config/version.txt)-linux-$(uname -m).source.tar.xz)" >> "$GITHUB_ENV"
                echo "SHORT_SHA=$(git rev-parse --short HEAD)" >> "$GITHUB_ENV"
                XZ_OPT='-9' tar --exclude=.git -cJf $ARCHIVE_NAME .

            - name: Release built tree
              if: ${{ github.ref == 'refs/heads/release' }}
              uses: marvinpinto/action-automatic-releases@d68defdd11f9dcc7f52f35c1b7c236ee7513bcc1
              with:
                repo_token: ${{ secrets.ROBOT_TOKEN }}
                automatic_release_tag: "${{ env.FF_VERSION }}-${{ env.SHORT_SHA }}"
                prerelease: true
                title: "v${{ env.FF_VERSION }} (${{ env.SHORT_SHA }})"
                files: ${{ env.ARCHIVE_NAME }}