action.yml

name: Version
author: TrueCommerce
description: A composite GitHub action used to calculate the next (or current in the case of releases) SemVer version number during a build.
inputs:
  release-branch:
    description: "The branch where release tags are added. Usually main or master. Default is master."
    required: false
    default: master
outputs:
  semver:
    description: "Format: {major}.{minor}.{patch}-{branch}.{commits}.{hash}"
    value: ${{ steps.version.outputs.value }}
  semverWithBuildMetadata:
    description: "Format: {major}.{minor}.{patch}-{branch}.{commits}.{hash}+{metadata}"
    value: "${{ steps.version.outputs.value }}+${{ steps.metadata.outputs.value }}"
  semverMajor:
    description: "Format: {major}"
    value: ${{ steps.semver-utils.outputs.major }}
  semverMajorMinor:
    description: "Format: {major}.{minor}"
    value: "${{ steps.semver-utils.outputs.major }}.${{ steps.semver-utils.outputs.minor }}"
  semverMajorMinorPatch:
    description: "Format: {major}.{minor}.{patch}"
    value: "${{ steps.semver-utils.outputs.major }}.${{ steps.semver-utils.outputs.minor }}.${{ steps.semver-utils.outputs.patch }}"
runs:
  using: "composite"
  steps:
    - if: github.event_name != 'release'
      uses: actions/checkout@v2
      with:
        ref: ${{ github.head_ref }}
        fetch-depth: 0
      
    - if: github.event_name != 'release'
      id: git-version
      uses: codacy/git-version@2.5.4
      with:
        release-branch: ${{ inputs.release-branch }}
        major-identifier: '/semver:\s*(major|breaking)/'
        minor-identifier: '/semver:\s*(minor|feature)/'

    - id: version
      uses: haya14busa/action-cond@v1.1.0
      with:
        cond: ${{ github.event_name == 'release' }}
        if_true: ${{ github.ref_name }}
        if_false: ${{ steps.git-version.outputs.version }}

    - id: semver-utils
      uses: madhead/semver-utils@latest
      with:
        version: ${{ steps.version.outputs.value }}
        
    - id: metadata
      uses: actions/github-script@v5.0.0
      with:
        script: |
          core.setOutput("value", context.runNumber.toString().padStart(4, 0));