.github/actions/stringify/action.yml

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---
name: "Stringify"
description: "Stringifies the given input value."
inputs:
  value:
    description: "Input value to stringify."
    required: true
outputs:
  stringified_value:
    description: "Stringified output value."
    value: ${{ steps.stringify-step.outputs.stringified_value }}
runs:
  using: "composite"
  steps:
    - name: "Stringify '${{ inputs.value }}'"
      id: stringify-step
      shell: bash
      run: |
        # adds a stringified version of the workflow name that can be used for generating unique build artifact names within a composite workflow
        # - replaces any special characters (except for underscores and dots) with dashes
        # - makes the entire string lowercase
        # - condenses multiple dashes into a single one
        # - removes leading and following dashes
        stringified_value=$(echo "${{ inputs.value }}" | tr -C '[:alnum:]._' '-' |  tr '[:upper:]' '[:lower:]' | sed -e 's/--*/-/g' -e 's/^-*//g' -e 's/-*$//g')
        echo "stringified_value=${stringified_value}" >> $GITHUB_OUTPUT