nerd-fonts/.github/workflows/font-patcher.yml

name: "Font-Patcher"

on:
  pull_request:
    branches: [ master ]
    paths:
      - 'font-patcher'
      - 'src/glyphs/**'

jobs:
  tests:
    name: font patcher tests
    runs-on: ubuntu-latest

    strategy:
      matrix:
        FontForgeRelease: [
          { name: "FontForge January 2023 Release", version: "20230101", archiveType: "tar.xz" },
          { name: "FontForge March 2022 Release", version: "20220308", archiveType: "tar.xz" },
          { name: "FontForge 20th Anniversary Edition", version: "20201107", archiveType: "tar.xz" },
          { name: "FontForge 2020 March Release", version: "20200314", archiveType: "tar.xz" },
          # @TODO we need to build this FontForge version differently or just skip for now:
          # { name: "Februrary 2015 (version after mimimum supported version)", version: "20150228", archiveType: "tar.gz" }
        ]

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup core dependencies
        run: |
          sudo apt update -y -q
          sudo apt install software-properties-common -y -q
          sudo apt install python3-fontforge -y -q          

      - name: Install FontForge
        run: |
          sudo apt install libjpeg-dev libtiff5-dev libpng-dev libfreetype6-dev libgif-dev libgtk-3-dev libxml2-dev libpango1.0-dev libcairo2-dev libspiro-dev python3-dev ninja-build cmake build-essential gettext libuninameslist-dev -y -q
          curl -Lv "https://github.com/fontforge/fontforge/releases/download/${{matrix.FontForgeRelease.version}}/fontforge-${{matrix.FontForgeRelease.version}}.${{matrix.FontForgeRelease.archiveType}}" \
            --output "FontForge.${{matrix.FontForgeRelease.archiveType}}"
          echo "what files we got::"
          ls -al
          tar -xf "FontForge.${{matrix.FontForgeRelease.archiveType}}"
          cd "$GITHUB_WORKSPACE/fontforge-${{matrix.FontForgeRelease.version}}/"
          sudo mkdir build
          cd build
          sudo cmake -GNinja ..
          sudo ninja
          sudo ninja install          

      - name: Compile showttf
        run: |
          cd "$GITHUB_WORKSPACE/fontforge-${{matrix.FontForgeRelease.version}}/contrib/fonttools"
          mkdir build
          cd build
          cmake -Wno-dev -GNinja ..
          ninja showttf
          echo "SHOWTTF=$(realpath showttf)" >> $GITHUB_ENV
          cd ../../..          

      - name: Setup additional dependencies
        run: |
          pip install fonttools --quiet          

      - name: Set the value for FontForge version check
        run: |
          echo "FONTFORGE_VERSION=$(fontforge --version 2>&1 | grep Version | awk '{print $NF}')" >> $GITHUB_ENV          

      - name: Verify FontForge version
        run: |
          [[ "${{ env.FONTFORGE_VERSION }}" == "${{matrix.FontForgeRelease.version}}" ]] && echo "FontForge version matches expected" || exit 1          

      - name: Patcher typical test run
        run: |
          mkdir -p $GITHUB_WORKSPACE/temp/
          fontforge --script ./font-patcher src/unpatched-fonts/Hack/Regular/Hack-Regular.ttf \
          --complete --quiet --no-progressbars --outputdir $GITHUB_WORKSPACE/temp/          

      - name: Check if patched font generated
        run: |
          [ -e "$GITHUB_WORKSPACE/temp/HackNerdFont-Regular.ttf" ] && echo "File exists" || exit 1          

      - name: Setup Spot check font information 1
        run: |
          echo FONT_INFO=$(fc-scan --format "%{family}:%{fullname}:%{style}\n" "$GITHUB_WORKSPACE/temp/HackNerdFont-Regular.ttf") >> $GITHUB_ENV          

      # TODO fix issues setting and getting fullname and style with GITHUB_ENV :(
      - name: Setup Spot check font information 2
        run: |
          echo FONT_FAMILY=${{ env.FONT_INFO }} | awk -F':' '{print $1}' >> $GITHUB_ENV          

      - name: Spot check font information
        run: |
          echo "FONT_FAMILY was ${{ env.FONT_FAMILY }}"
          [[ "${{ env.FONT_FAMILY }}" == "Hack Nerd Font" ]] && echo "Font Family matches expected" || exit 1          

      - name: Spot check font properties
        run: |
          ${{ env.SHOWTTF }} -c "$GITHUB_WORKSPACE/temp/HackNerdFont-Regular.ttf" | grep -q 'File Checksum.*diff=0\s*$' && echo "TTF checksum ok" || exit 1
          ORIG_MINPPEM=$(${{ env.SHOWTTF }} -c "src/unpatched-fonts/Hack/Regular/Hack-Regular.ttf" | grep 'lowestppem=' )
          PATCH_MINPPEM=$(${{ env.SHOWTTF }} -c "$GITHUB_WORKSPACE/temp/HackNerdFont-Regular.ttf" | grep 'lowestppem=' )
          echo "${ORIG_MINPPEM} == ${PATCH_MINPPEM}"
          [[ ${ORIG_MINPPEM} == ${PATCH_MINPPEM} ]] && echo "lowestRecPPEM matches" || exit 1          

      - name: Patcher monospaced
        run: |
          mkdir -p $GITHUB_WORKSPACE/temp/
          fontforge --script ./font-patcher src/unpatched-fonts/Hack/Regular/Hack-Regular.ttf \
          --complete --mono --quiet --no-progressbars --outputdir $GITHUB_WORKSPACE/temp/          

      - name: Check if patched font generated
        run: |
          [ -e "$GITHUB_WORKSPACE/temp/HackNerdFontMono-Regular.ttf" ] && echo "File exists" || exit 1          

      - name: Patcher OTF, Bold variant, and RFN compliance
        run: |
          mkdir -p $GITHUB_WORKSPACE/temp/
          fontforge --script ./font-patcher src/unpatched-fonts/CascadiaCode/Bold/CascadiaCode-Bold-vtt.ttf \
          --complete --quiet --no-progressbars --outputdir $GITHUB_WORKSPACE/temp/          

      - name: Check if patched font generated
        run: |
          [ -e "$GITHUB_WORKSPACE/temp/CaskaydiaCoveNerdFont-Bold.ttf" ] && echo "File exists" || exit 1          

      - name: Check if font with references is patched
        # (patch result not checked)
        run: |
          fontforge --script ./font-patcher src/unpatched-fonts/UbuntuMono/Regular/UbuntuMono-R.ttf \
          --quiet --no-progressbars --outputdir $GITHUB_WORKSPACE/temp/
          [ -e "$GITHUB_WORKSPACE/temp/UbuntuMonoNerdFont-Regular.ttf" ] && echo "File exists" || exit 1