optimizeImage.yml

name: OptimizeImage

# Input: chain, address, CID
# Steps:
# - resolve image/download it
# - optimize image: 256x256, remove metadata
# - upload new image to ipfs: name file <address>.png, upload it
# - return CID

on:
  workflow_call:
    inputs:
      address:
        required: true
        type: string
      url:
        required: true
        type: string

jobs:
  execute:
    runs-on: ubuntu-latest
    steps:
      - name: Download image
        run: curl -o image.png "${{ inputs.url }}"

      - name: Install dependencies
        run: sudo apt install imagemagick librsvg2-bin

      - name: Optimze image
        run: |
          image_type=$(identify -format "%m" image.png)

          if [[ "$image_type" == "SVG" ]]; then
            # Convert the SVG to PNG
            rsvg-convert --width=256 --height=256 --keep-aspect-ratio -o output.png image.png
          elif [[ "$image_type" == "PNG" ]]; then
            should_optimize=$(identify -format "%[fx:w>256 && h>256]" image.png)

            if [ "$should_optimize" = "1" ]; then
              echo "Optimizing PNG image"
              convert image.png -depth 7 -resize 256x -posterize 24 output.png
            else
              echo "Image is already small enough, moving to output.png"
              mv image.png output.png
            fi
          else
            echo "Error: Unsupported image type: $image_type" >&2
            exit 1
          fi

      - name: Upload img
        uses: actions/upload-artifact@v4
        with:
          name: ${{ inputs.address }}
          path: output.png
          retention-days: 1

      - name: Report error
        if: ${{ failure() }}
        uses: peter-evans/close-issue@v2
        with:
          comment: |
            Failed to optimize image

            Check you provided a proper image file and try again in a new issue

            If the issue persists, create a bug report

            cc @cowprotocol/frontend