A GitHub Action for publishing JavaScript Actions! It's designed to act on new releases, and updates the tag with a compiled JS file, using @vercel/ncc. The process looks like this:

• Reads the main property in your package.json
• Force pushes action.yml and the above file to the release's tag
• Force pushes to the major version tag (ex: v1.0.0 -> v1)

This repository even uses it! @vercel/ncc supports TypeScript out of the box 😍

name: Publish

on:
  release:
    types: [published, edited]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          ref: ${{ github.event.release.tag_name }}
      - name: Install deps and build
        run: npm ci && npm run build
      - uses: JasonEtco/build-and-tag-action@v2
        env:
          GITHUB_TOKEN: ${{ github.token }}

You can also use this action with other events - you'll just need to specify a tag_name (see below).

The two important thing you'll need to set in your action are the main field and the build script. Here's an example of a minimal package.json that will use @vercel/ncc to compile your action to dist/index.js, update your action.yml file to use the node16 runtime and point build-and-tag-action at the compiled file:

{
  "name": "your-action-name",
  "main": "dist/index.js",
  "scripts": {
    "build": "npx @vercel/ncc build && npx convert-action"
  }
}

Your package.json will probably contain a dependencies section, in addition to other fields such as license.

tag_name

The tag to update. If the workflow event is release, it will use the tag_name from the event payload. This option can be useful when using this action in a workflow with other actions that generate a release:

- uses: fictional/releaser@v1 # Not a real action!
  id: releaser
- uses: JasonEtco/build-and-tag-action@v2
  with:
    tag_name: ${{ steps.releaser.outputs.tag_name }}

The guide to JavaScript Actions recommends including node_modules in your repository, and manual steps to following the versioning recommendations. There are anti-patterns there that just don't sit right with me; so we can enable the same workflow, automatically!

This Action is heavily inspired by mheap/github-action-auto-compile-node & Actions-R-Us/actions-tagger. This is more or less a combination of those two Actions, meant to work together.