build.yml

name: Build NotoSansPro Font

on:
  workflow_dispatch: {}
  push:
    branches:
      - main
    paths:
      - 'tools/fontslist/urls.txt'

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Download Fonts From URLs
        run: |
          set -e
          mkdir -p tools/fontslist build
          count=0
          while read -r path; do
            [[ "$path" =~ ^\s*(#|$) ]] && continue
            if [[ "$path" =~ :// ]]; then
              url="$path"
            else
              url="https://${path#//}"
            fi
            file="${url##*/}"
            echo "Downloading $url"
            wget --timeout=30 --tries=3 -O "tools/fontslist/$file" "$url"
            count=$((count+1))
          done < tools/fontslist/urls.txt
          echo "Download complete: $count font files"

      - name: Build and Merge All Fonts
        run: |
          set -euo pipefail

          chmod +x tools/{otfccdump,merge-otd,otfccbuild}
          workdir=$(mktemp -d)
          trap 'rm -rf "$workdir"' EXIT

          echo "Converting fonts to .otd..."
          for font in tools/fontslist/*.{ttf,otf}; do
            [[ -e "$font" ]] || continue
            base=$(basename "$font" | sed 's/\.\(ttf\|otf\)$//')
            out="$workdir/${base}.otd"
            echo "  ➡️ $font → $out"
            if ! ./tools/otfccdump --ignore-hints "$font" -o "$out"; then
              echo "⚠️ Warning: failed to process $font, skipping." >&2
              continue
            fi
          done

          echo "Collecting .otd files and sorting by size..."
          mapfile -t otd_files < <(ls -1S "$workdir"/*.otd)
          if [[ ${#otd_files[@]} -eq 0 ]]; then
            echo "❌ No .otd files found, exiting."
            exit 1
          fi
          echo "Merging .otd files into notosanspro.otd..."
          ./tools/merge-otd -o notosanspro.otd -n "Noto Sans Pro;400;5;Normal" "${otd_files[@]}"
          echo "Building final OpenType font NotoSansPro.otf..."
          ./tools/otfccbuild notosanspro.otd -O1 -o build/NotoSansPro.otf
          cp notosanspro.otd build/
          cp -r tools/fontslist build/

          echo "✅ Build complete: build/NotoSansPro.otf, build/notosanspro.otd"

      - name: Remove Emoji Overlap
        run: |
          python3 -m pip install --upgrade pip
          pip install fonttools
          git clone --depth=1 https://github.com/googlefonts/noto-emoji.git
          python script/remove_emoji_overlap.py noto-emoji/colrv1/all.toml build/NotoSansPro.otf

      - name: Upload Artifact
        uses: actions/upload-artifact@v4
        with:
          name: NotoSansPro-Build-OUTPUT
          path: build