Repository Attributes Action

A GitHub Action to make various attributes of a repository available as output variables. It is intended to be used with other actions such as Create a Release to suppliment them with information like contributors, files changed, pull requests, and commits.

Inputs

Many attributes are extracted from the range of Git history $tail..$head.

head

Most recent repo reference (empty default infers HEAD or a tag pointing to the head).

tail

A prior repo reference to check for changes from (empty default infers the previous tag or the initial commit).

Outputs

The action sets up various output variables to be utilized in any succeeding steps.

head

Evaluated most recent repo reference.

tail

Evaluated previous reference.

commits

List of commits (hash and message).

prs

List of pull requests (number and title).

files

Summary of changed files.

contributors

List of contributors (name and number of commits).

Example Usage

on:
  push:
    tags:
      - '*'

name: Create Release

jobs:
  build:
    name: Create Release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v2
        with:
          fetch-depth: 0 # This is important for the Git history
      - name: Extract Repo Attributes
        id: attrs # This is important for future referencing
        uses: ibnesayeed/repo-attrs@master
      - name: Create Release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.ref }}
          release_name: Release ${{ github.ref }}
          # Utilize extracted attributes from the previous step
          body: |
            ## Changes in this Release

            History from `${{ steps.attrs.outputs.tail }}` to `${{ steps.attrs.outputs.head }}`

            ### Commits

            ${{ steps.attrs.outputs.commits }}

            ### Pull Requests

            ${{ steps.attrs.outputs.prs }}

            ### Contributors

            ${{ steps.attrs.outputs.contributors }}

            ### Files

            ```
            ${{ steps.attrs.outputs.files }}
            ```