name: Generate build version number
description: "Generate build version number."

outputs:
  version:
    description: "The generated build version number."
    value: ${{ steps.version.outputs.version }}

runs:
  using: composite
  steps:
    # When a tag is pushed, the version is used as-is.
    - name: Generate version for tag event
      if: ${{ github.event_name == 'tag' }}
      shell: bash
      env:
        VERSION: ${{ github.ref_name }}
      run: echo "VERSION=${VERSION}" >> "${GITHUB_ENV}"

    # When a tag is not pushed, then the version (e.g. 1.2.3-b0) is extracted
    # from the BuildInfo.cpp file and the shortened commit hash appended to it.
    # We use a plus sign instead of a hyphen because Conan recipe versions do
    # not support two hyphens.
    - name: Generate version for non-tag event
      if: ${{ github.event_name != 'tag' }}
      shell: bash
      run: |
        echo 'Extracting version from BuildInfo.cpp.'
        VERSION="$(cat src/libxrpl/protocol/BuildInfo.cpp | grep "versionString =" | awk -F '"' '{print $2}')"
        if [[ -z "${VERSION}" ]]; then
          echo 'Unable to extract version from BuildInfo.cpp.'
          exit 1
        fi

        echo 'Appending shortened commit hash to version.'
        SHA='${{ github.sha }}'
        VERSION="${VERSION}+${SHA:0:7}"

        echo "VERSION=${VERSION}" >> "${GITHUB_ENV}"

    - name: Output version
      id: version
      shell: bash
      run: echo "version=${VERSION}" >> "${GITHUB_OUTPUT}"