action.yml

name: "Compress Images"
description: "Compress all images from the provided directory"
author: "Clyde D'Souza"
branding:
  icon: "image"
  color: "red"

inputs:  
  input-directory:  
    description: "Directory that contains uncompressed images"
    default: "images"
  
  output-directory:  
    description: "Directory that will contain the compressed images"
    default: "dist"

  jpg-compression-quality:  
    description: "Set the level of compression for JPG image files"
    default: 40
  
  png-compression-quality:  
    description: "Set the level of compression for PNG image files"
    default: 0.4
  
  gif-compression-quality:  
    description: "Set the level of compression for GIF image files"
    default: 2
    
runs:
  using: "composite"
  steps:
    - name: Print npm and node version
      shell: bash
      run: |
        npm --version
        node --version

    - name: Install required npm packages
      shell: bash
      run: |
        npm install imagemin-cli imagemin-gifsicle imagemin-mozjpeg imagemin-pngquant --global --loglevel error    

    - name: Run image compression
      shell: bash
      run: |
        imagemin ${{ inputs.input-directory }} \
          --out-dir=${{ inputs.output-directory }} \
          --plugin.mozjpeg.quality=${{ inputs.jpg-compression-quality }} \
          --plugin.gifsicle.optimizationLevel=${{ inputs.gif-compression-quality }} \
          --plugin.pngquant.quality=${{ inputs.png-compression-quality }} \
          --plugin.pngquant.quality=${{ inputs.png-compression-quality }}