action.yml

inputs:
  folder:
    description: folder where the HTMLs (recursively throughout the folder) will be minified. use rel. path (relative to root)
    required: false
    default: "./_site"  # for Jekyll project

runs:
  using: composite
  steps:
    - run: |
        import os, re, random, subprocess

        ## needed
        needs = {
          'act_repo': os.environ['ENV__action_repository'],
          'ver': os.environ['ENV__action_ref'],  # the Action version.
        }
        ACTION_BIO = f"{needs['act_repo']}({needs['ver']})"

        ## inputs
        ipts = {
          'folder': os.environ['IPT__folder'],
        }

        print('─'*99)
        print(f"INFO: Running {ACTION_BIO}.")
        print(f"DEBUG: (inputs) folder: {ipts['folder']}")

        ## get the abs.path
        ABS_PTH = os.path.normpath(os.path.abspath(os.path.join(os.getcwd(), ipts['folder'])))
        print(f"DEBUG: repr(ABS_PTH): {repr(ABS_PTH)}")

        ## checks
        if not os.path.isdir(ABS_PTH): raise AssertionError(f"Not a dir: {repr(ABS_PTH)}")

        ## minify HTMLs
        def main():
          def recursing(dir_pth):
            for i in os.listdir(dir_pth):
              ipth = os.path.join(dir_pth, i)
              if os.path.isfile(ipth):
                if i.lower().endswith('.html'):  # just HTML files
                  size0 = os.path.getsize(ipth)
                  subprocess.run([
                    'html-minifier', ipth,
                    '--remove-comments',
                    '--minify-css', 'true', '--minify-js', 'true',
                    '--remove-attribute-quotes',
                    '--remove-optional-tags',
                    '--remove-redundant-attributes',
                    '--collapse-whitespace',
                    '--collapse-boolean-attributes',
                    # '--collapse-inline-tag-whitespace',  # not using this, it will remove spaces that shouldnt be removed.
                    '-o', ipth
                  ])
                  print(f"INFO: minified: {os.path.relpath(ipth, ABS_PTH)} ({round(  100*(size0-os.path.getsize(ipth))/size0  )}%)")
              else: recursing(ipth)
          recursing(ABS_PTH)
        main()
        
        print(f"─── {ACTION_BIO} finished... {random.choice(['Take care!', 'You are awesome, goodbye.'])}")
      shell: python
      env:
        ENV__action_repository: ${{ github.action_repository }}
        ENV__action_ref: ${{ github.action_ref }}
        IPT__folder: ${{ inputs.folder }}