action.yml

name: "Release Info Action"
author: "Aaron Batilo"
description: "An action to read release information of a given GitHub repository"
branding:
  icon: "package"
  color: "gray-dark"
inputs:
  owner:
    description: "The user or org for this repo"
    required: true
  repo:
    description: "The name of the repo itself"
    required: true
outputs:
  latest_tag:
    description: "The latest release version tag"
    value: ${{ steps.fetch-info.outputs.latest_tag }}
  latest_tag_published_at:
    description: "The ISO8601 timestamp of when this version was released"
    value: ${{ steps.fetch-info.outputs.latest_tag_published_at }}
  target_commitish:
    description: "Specifies the commitish value that determines where the git tag is created from. Can be any branch or commit SHA."
    value: ${{ steps.fetch-info.outputs.target_commitish }}
runs:
  using: "composite"
  steps:
    - id: fetch-info
      shell: bash
      run: |
        set -o errexit
        set -o pipefail
        
        owner="${{ inputs.owner }}"
        repo="${{ inputs.repo }}"

        release_json=$(curl https://api.github.com/repos/$owner/$repo/releases/latest)
        latest_tag=$(echo "$release_json" | jq -r '.tag_name')
        latest_tag_published_at=$(echo "$release_json" | jq -r '.published_at')
        target_commitish=$(echo "$release_json" | jq -r '.target_commitish')

        echo "latest_tag: $latest_tag"
        echo "latest_tag_published_at: $latest_tag_published_at"
        echo "target_commitish: $target_commitish"

        echo "latest_tag=$latest_tag" >> $GITHUB_OUTPUT
        echo "latest_tag_published_at=$latest_tag_published_at" >> $GITHUB_OUTPUT
        echo "target_commitish=$target_commitish" >> $GITHUB_OUTPUT