action.yml

name: 'Set Git Branch'
author: Joshua Estrin Skrzypek <https://github.com/jskrzypek>
description: |
  Sets the git branch name as a consistent env var & output. If the event is 
  triggered by a tag, no value will be set.
branding:
  icon: git-branch
  color: orange
outputs:
  branch-name:
    description: "The branch name"
    value: ${{ steps.set-output.outputs.branch-name }}
runs:
  using: "composite"
  steps:
    - name: Set Git Branch Name for PR Events
      id: branch-name-from-pr
      if: |-
        github.event_name == 'pull_request'
        || github.event_name == 'pull_request_target'
      run: |
        echo "GIT_BRANCH=${{ github.head_ref }}" >> $GITHUB_ENV
      shell: bash
    - name: Set Git Branch Name for non-PR Branch Events
      id: branch-name-from-non-pr
      if: |-
        github.event_name != 'pull_request'
        && github.event_name != 'pull_request_target'
        && github.ref_type == 'branch'
      run: |
        echo "GIT_BRANCH=${{ github.ref_name }}" >> $GITHUB_ENV
      shell: bash
    - name: Set output from env var
      id: set-output
      run: |
        echo "::set-output name=branch-name::${{ env.GIT_BRANCH }}"
      shell: bash