action.yml

name: 'Set Variable from Commit Pragma'
description: 'Set Variable from Commit Pragma'
inputs:
  commit-message:
    description: Dequoted commit message
    required: true
  pragma:
    description: Pragma to make a variable from
    required: true
  default:
    description: Default value if pragma is not found
    required: false
outputs:
  value:
    description: The value of the pragma
    value: ${{ steps.value.outputs.value }}

runs:
  using: "composite"
  steps:
    # checkout the common library
    - name: Checkout code
      uses: actions/checkout@v4
      with:
        repository: daos-stack/actions-lib
        ref: v1
        path: actions-lib
    - name: Create Variable
      id: value
      shell: bash
      run: |
           set -eu
           # using user input (the commit message) in an eval can be pretty dangerous
           # but actions-lib/get_commit_pragmas does a good job of sanitizing it
           eval $(echo '${{ inputs.commit-message }}' | actions-lib/get_commit_pragmas)
           echo "value=${${{ inputs.pragma }}:-${{ inputs.default }}}" >> $GITHUB_OUTPUT
           cat "$GITHUB_OUTPUT"