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237 changes: 22 additions & 215 deletions README.md
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# Create a GitHub Action Using TypeScript
# Kotlin Multiplatform SPM publishing to a remote repo

[![GitHub Super-Linter](https://github.com/actions/typescript-action/actions/workflows/linter.yml/badge.svg)](https://github.com/super-linter/super-linter)
![CI](https://github.com/actions/typescript-action/actions/workflows/ci.yml/badge.svg)
[![Check dist/](https://github.com/actions/typescript-action/actions/workflows/check-dist.yml/badge.svg)](https://github.com/actions/typescript-action/actions/workflows/check-dist.yml)
[![CodeQL](https://github.com/actions/typescript-action/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/actions/typescript-action/actions/workflows/codeql-analysis.yml)
[![Coverage](./badges/coverage.svg)](./badges/coverage.svg)
## Main Docs

Use this template to bootstrap the creation of a TypeScript action. :rocket:
This plugin helps support [KMMBridge](https://touchlab.co/kmmbridge/) features. To understand how to use it, please follow those docs and tutorials.

This template includes compilation support, tests, a validation workflow,
publishing, and versioning guidance.
## Overview

If you are new, there's also a simpler introduction in the
[Hello world JavaScript action repository](https://github.com/actions/hello-world-javascript-action).
When publishing SPM binaries for KMP, publishing to the same repo as the code is simpler. However, you can publish to any repo.

## Create Your Own Action
There are cases where publishing to a separate repo makes sense. The most obvious use case is publishing KMP code from a module inside your Android repo. SPM uses git tags to manage versions, and if your Android repo also uses tags, they can be get confused.

To create your own action, you can use this repository as a template! Just
follow the below instructions:
In any case, publishing to a different repo requires more configuration.

1. Click the **Use this template** button at the top of the repository
1. Select **Create a new repository**
1. Select an owner and name for your new repository
1. Click **Create repository**
1. Clone your new repository
## What this action does

> [!IMPORTANT]
>
> Make sure to remove or update the [`CODEOWNERS`](./CODEOWNERS) file! For
> details on how to use this file, see
> [About code owners](https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners).
This action takes the `Package.swift` from your local repo and pushes it to a remote repo. It will also add a tag for versioning purposes.

## Initial Setup
To support using GitHub Releases, the tag will overwrite the release tag if it already exists.

After you've cloned the repository to your local machine or codespace, you'll
need to perform some initial setup steps before you can develop your action.
## How it works

> [!NOTE]
>
> You'll need to have a reasonably modern version of
> [Node.js](https://nodejs.org) handy (20.x or later should work!). If you are
> using a version manager like [`nodenv`](https://github.com/nodenv/nodenv) or
> [`nvm`](https://github.com/nvm-sh/nvm), this template has a `.node-version`
> file at the root of the repository that will be used to automatically switch
> to the correct version when you `cd` into the repository. Additionally, this
> `.node-version` file is used by GitHub Actions in any `actions/setup-node`
> actions.
GitHub Actions give the action runner significant permissions, but only to the repo on which it is running. To access any other repo, and to be able to update those repos, requires extra steps and configuration.

1. :hammer_and_wrench: Install the dependencies
This action assumes you have already configured access to the "other" repo you plan to communicate with. The git commands in the action use the git CLI tool. If auth fails for the CLI tool, this action will fail.

```bash
npm install
```
## Arguments

1. :building_construction: Package the TypeScript for distribution

```bash
npm run bundle
```

1. :white_check_mark: Run the tests

```bash
$ npm test

PASS ./index.test.js
✓ throws invalid number (3ms)
wait 500 ms (504ms)
test runs (95ms)

...
```

## Update the Action Metadata

The [`action.yml`](action.yml) file defines metadata about your action, such as
input(s) and output(s). For details about this file, see
[Metadata syntax for GitHub Actions](https://docs.github.com/en/actions/creating-actions/metadata-syntax-for-github-actions).

When you copy this repository, update `action.yml` with the name, description,
inputs, and outputs for your action.

## Update the Action Code

The [`src/`](./src/) directory is the heart of your action! This contains the
source code that will be run when your action is invoked. You can replace the
contents of this directory with your own code.

There are a few things to keep in mind when writing your action code:

- Most GitHub Actions toolkit and CI/CD operations are processed asynchronously.
In `main.ts`, you will see that the action is run in an `async` function.

```javascript
import * as core from '@actions/core'
//...

async function run() {
try {
//...
} catch (error) {
core.setFailed(error.message)
}
}
```

For more information about the GitHub Actions toolkit, see the
[documentation](https://github.com/actions/toolkit/blob/master/README.md).

So, what are you waiting for? Go ahead and start customizing your action!

1. Create a new branch

```bash
git checkout -b releases/v1
```

1. Replace the contents of `src/` with your action code
1. Add tests to `__tests__/` for your source code
1. Format, test, and build the action

```bash
npm run all
```

> This step is important! It will run [`ncc`](https://github.com/vercel/ncc)
> to build the final JavaScript action code with all dependencies included.
> If you do not run this step, your action will not work correctly when it is
> used in a workflow. This step also includes the `--license` option for
> `ncc`, which will create a license file for all of the production node
> modules used in your project.
1. Commit your changes

```bash
git add .
git commit -m "My first action is ready!"
```

1. Push them to your repository

```bash
git push -u origin releases/v1
```

1. Create a pull request and get feedback on your action
1. Merge the pull request into the `main` branch

Your action is now published! :rocket:

For information about versioning your action, see
[Versioning](https://github.com/actions/toolkit/blob/master/docs/action-versioning.md)
in the GitHub Actions toolkit.

## Validate the Action

You can now validate the action by referencing it in a workflow file. For
example, [`ci.yml`](./.github/workflows/ci.yml) demonstrates how to reference an
action in the same repository.

```yaml
steps:
- name: Checkout
id: checkout
uses: actions/checkout@v4

- name: Test Local Action
id: test-action
uses: ./
with:
milliseconds: 1000

- name: Print Output
id: output
run: echo "${{ steps.test-action.outputs.time }}"
```
For example workflow runs, check out the
[Actions tab](https://github.com/actions/typescript-action/actions)! :rocket:
## Usage
After testing, you can create version tag(s) that developers can use to
reference different stable versions of your action. For more information, see
[Versioning](https://github.com/actions/toolkit/blob/master/docs/action-versioning.md)
in the GitHub Actions toolkit.
To include the action in a workflow in another repository, you can use the
`uses` syntax with the `@` symbol to reference a specific branch, tag, or commit
hash.

```yaml
steps:
- name: Checkout
id: checkout
uses: actions/checkout@v4
- name: Test Local Action
id: test-action
uses: actions/typescript-action@v1 # Commit with the `v1` tag
with:
milliseconds: 1000

- name: Print Output
id: output
run: echo "${{ steps.test-action.outputs.time }}"
```
## Publishing a New Release
This project includes a helper script, [`script/release`](./script/release)
designed to streamline the process of tagging and pushing new releases for
GitHub Actions.

GitHub Actions allows users to select a specific version of the action to use,
based on release tags. This script simplifies this process by performing the
following steps:

1. **Retrieving the latest release tag:** The script starts by fetching the most
recent release tag by looking at the local data available in your repository.
1. **Prompting for a new release tag:** The user is then prompted to enter a new
release tag. To assist with this, the script displays the latest release tag
and provides a regular expression to validate the format of the new tag.
1. **Tagging the new release:** Once a valid new tag is entered, the script tags
the new release.
1. **Pushing the new tag to the remote:** Finally, the script pushes the new tag
to the remote repository. From here, you will need to create a new release in
GitHub and users can easily reference the new tag in their workflows.
* `commitMessage` - Required - Message for the commit which updates the `Package.swift` file
* `tagMessage` - Optional - Message for the version tag commit. Defaults to "Version ${tagVersion}"
* `tagVersion` - Required - Version string to use in the tag. Should follow [semver rules](https://semver.org/).
* `remoteRepo` - Required - Repo we are publishing to in [org]/[repo] format.
* `remoteBranch` - Required - Branch we are pushing to.
* `remoteRepoUrl` - Optional - Full url for the repo we are publishing to. Defaults to "https://github.com/${remoteRepo}.git".
* `localPackagePath` - Optional - Local path to the `Package.swift` file. This is usually the repo root. The default for this argument is an empty string. Internally, we expand the argument with the following: ".${localPackagePath}/Package.swift". If you provide a value for this argument, leave out the `.` prefix and the `/Package.swift` suffix. For example, if your `Package.swift` is for some reason at `[repo root]/mylibrary/Package.swift`, the argument would be `/mylibrary`.
* `remotePackagePath` - Optional - Similar to `localPackagePath`, we assume repo root. If not, follow the same convention.
27 changes: 13 additions & 14 deletions action.yml
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name: 'KXCBridge: Tag Release'
description: 'Tag version for SPM'
name: 'KMMBridge: Remote SPM Publishing Support'
description: 'Publish KMP SPM builds to a remote repo'
author: 'Kevin Galligan'

# Add your action's branding here. This will appear on the GitHub Marketplace.
branding:
icon: 'heart'
color: 'red'
icon: 'external-link'
color: 'orange'

inputs:
commitMessage:
description: 'Message for Package.swift commit'
description: 'Message for the commit which updates the `Package.swift` file.'
required: true
tagMessage:
description: 'Message for release tag'
required: true
description: 'Message for the version tag commit. Defaults to "Version ${tagVersion}".'
required: false
tagVersion:
description: 'The release version'
description: 'Version string to use in the tag. Should follow semver rules: https://semver.org/.'
required: true
remoteRepo:
description: 'Remote repo [org]/[repo]'
description: 'Repo we are publishing to in [org]/[repo] format.'
required: true
remoteBranch:
description: 'Branch we are pushing to.'
required: true
remoteRepoUrl:
description: 'URL to remote repo'
description: 'Full url for the repo we are publishing to. Defaults to "https://github.com/${remoteRepo}.git".'
required: false
localPackagePath:
description: 'Local path to Package.swift'
required: false
remotePackagePath:
description: 'Remote path to Package.swift'
required: false
remoteBranch:
description: 'Remote repo branch'
required: true

runs:
using: node20
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3 changes: 0 additions & 3 deletions src/index.ts
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/**
* The entrypoint for the action.
*/
import { run } from './main'

// eslint-disable-next-line @typescript-eslint/no-floating-promises
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58 changes: 39 additions & 19 deletions src/main.ts
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Expand Up @@ -2,28 +2,48 @@ import * as core from '@actions/core'
import simpleGit from 'simple-git'
import * as fs from 'fs'

function notEmpty(p: string | undefined) {
return p && p.trim().length > 0
}

function assertNotEmpty(p: string | undefined, message: string) {
if (!notEmpty(p)) {
core.setFailed(message)
throw new Error(message)
}
}

export async function run(): Promise<void> {
try {
const commitMessage: string = core.getInput('commitMessage')
const tagMessage: string = core.getInput('tagMessage')
const tagVersion: string = core.getInput('tagVersion')
const remoteRepo: string = core.getInput('remoteRepo')
let remoteRepoUrl: string = core.getInput('remoteRepoUrl')
const localPackagePath: string = core.getInput('localPackagePath')
const remotePackagePath: string = core.getInput('remotePackagePath')
const remoteBranch: string = core.getInput('remoteBranch')

core.debug(`commitMessage: ${commitMessage}`)
core.debug(`remoteRepo: ${remoteRepo}`)
core.debug(`remoteRepoUrl: ${remoteRepoUrl}`)
core.debug(`localPackagePath: ${localPackagePath}`)
core.debug(`remotePackagePath: ${remotePackagePath}`)
core.debug(`remoteBranch: ${remoteBranch}`)

remoteRepoUrl = remoteRepoUrl ? remoteRepoUrl : `https://github.com/${remoteRepo}.git`
const commitMessage: string = core.getInput('commitMessage')
let tagMessage: string = core.getInput('tagMessage')
const tagVersion: string = core.getInput('tagVersion')
const remoteRepo: string = core.getInput('remoteRepo')
let remoteRepoUrl: string = core.getInput('remoteRepoUrl')
let localPackagePath: string = core.getInput('localPackagePath')
let remotePackagePath: string = core.getInput('remotePackagePath')
const remoteBranch: string = core.getInput('remoteBranch')

const git = simpleGit()
core.debug(`commitMessage: ${commitMessage}`)
core.debug(`tagMessage: ${tagMessage}`)
core.debug(`tagVersion: ${tagVersion}`)
core.debug(`remoteRepo: ${remoteRepo}`)
core.debug(`remoteRepoUrl: ${remoteRepoUrl}`)
core.debug(`localPackagePath: ${localPackagePath}`)
core.debug(`remotePackagePath: ${remotePackagePath}`)
core.debug(`remoteBranch: ${remoteBranch}`)

tagMessage = notEmpty(tagMessage) ? tagMessage : `Version ${tagVersion}`
remoteRepoUrl = notEmpty(remoteRepoUrl) ? remoteRepoUrl : `https://github.com/${remoteRepo}.git`
localPackagePath = notEmpty(localPackagePath) ? localPackagePath : ''
remotePackagePath = notEmpty(remotePackagePath) ? remotePackagePath : ''

assertNotEmpty(commitMessage, "'commitMessage' cannot be empty")
assertNotEmpty(tagVersion, "'tagVersion' cannot be empty")
assertNotEmpty(remoteRepo, "'remoteRepo' cannot be empty")
assertNotEmpty(remoteBranch, "'remoteBranch' cannot be empty")

try {
const git = simpleGit()
await git.raw('fetch', remoteRepoUrl, remoteBranch)

await git.raw('branch', 'remote_swift_package', 'FETCH_HEAD')
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