create-release.yml

name: Create Release

on:
  push:
    branches: [ main ]
  workflow_dispatch:

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repo files
        uses: actions/checkout@v2

      - name: Create zip with repo files
        run: git archive --format zip --output ${{ github.event.repository.name }}.zip HEAD

      - name: Read checked out manifest.json
        id: read-manifest
        run: echo "::set-output name=manifest::$(< ./manifest.json sed ':a;N;$!ba;s/\n/ /g')"

      - name: Check if version in manifest.json is already released
        uses: mukunku/tag-exists-action@v1.0.0
        id: checkTag
        with:
          tag: "v${{fromJson(steps.read-manifest.outputs.manifest).version}}"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    
      - name: Publish repo zip with version from manifest
        if: ${{ (fromJson(steps.read-manifest.outputs.manifest).version != '0.0.0') && (steps.checkTag.outputs.exists == 'false') }}
        uses: softprops/action-gh-release@v1
        with:
          files: "${{ github.event.repository.name }}.zip"
          body: "${{ github.event.head_commit.message }}"
          tag_name: "v${{fromJson(steps.read-manifest.outputs.manifest).version}}"