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# Create a GitHub Action Using TypeScript | ||
# Kotlin Multiplatform SPM publishing to a remote repo | ||
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[![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 | ||
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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. | ||
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This template includes compilation support, tests, a validation workflow, | ||
publishing, and versioning guidance. | ||
## Overview | ||
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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. | ||
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## 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. | ||
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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. | ||
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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 | ||
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> [!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. | ||
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## Initial Setup | ||
To support using GitHub Releases, the tag will overwrite the release tag if it already exists. | ||
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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 | ||
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> [!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. | ||
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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. | ||
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```bash | ||
npm install | ||
``` | ||
## Arguments | ||
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1. :building_construction: Package the TypeScript for distribution | ||
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```bash | ||
npm run bundle | ||
``` | ||
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1. :white_check_mark: Run the tests | ||
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```bash | ||
$ npm test | ||
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PASS ./index.test.js | ||
✓ throws invalid number (3ms) | ||
✓ wait 500 ms (504ms) | ||
✓ test runs (95ms) | ||
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... | ||
``` | ||
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## Update the Action Metadata | ||
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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). | ||
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When you copy this repository, update `action.yml` with the name, description, | ||
inputs, and outputs for your action. | ||
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## Update the Action Code | ||
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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. | ||
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There are a few things to keep in mind when writing your action code: | ||
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- 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. | ||
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```javascript | ||
import * as core from '@actions/core' | ||
//... | ||
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async function run() { | ||
try { | ||
//... | ||
} catch (error) { | ||
core.setFailed(error.message) | ||
} | ||
} | ||
``` | ||
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For more information about the GitHub Actions toolkit, see the | ||
[documentation](https://github.com/actions/toolkit/blob/master/README.md). | ||
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So, what are you waiting for? Go ahead and start customizing your action! | ||
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1. Create a new branch | ||
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```bash | ||
git checkout -b releases/v1 | ||
``` | ||
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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 | ||
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```bash | ||
npm run all | ||
``` | ||
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> 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 | ||
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```bash | ||
git add . | ||
git commit -m "My first action is ready!" | ||
``` | ||
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1. Push them to your repository | ||
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```bash | ||
git push -u origin releases/v1 | ||
``` | ||
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1. Create a pull request and get feedback on your action | ||
1. Merge the pull request into the `main` branch | ||
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Your action is now published! :rocket: | ||
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For information about versioning your action, see | ||
[Versioning](https://github.com/actions/toolkit/blob/master/docs/action-versioning.md) | ||
in the GitHub Actions toolkit. | ||
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## Validate the Action | ||
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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. | ||
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```yaml | ||
steps: | ||
- name: Checkout | ||
id: checkout | ||
uses: actions/checkout@v4 | ||
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- name: Test Local Action | ||
id: test-action | ||
uses: ./ | ||
with: | ||
milliseconds: 1000 | ||
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- name: Print Output | ||
id: output | ||
run: echo "${{ steps.test-action.outputs.time }}" | ||
``` | ||
For example workflow runs, check out the | ||
[Actions tab](https://github.com/actions/typescript-action/actions)! :rocket: | ||
## Usage | ||
After testing, you can create version tag(s) that developers can use to | ||
reference different stable versions of your action. For more information, see | ||
[Versioning](https://github.com/actions/toolkit/blob/master/docs/action-versioning.md) | ||
in the GitHub Actions toolkit. | ||
To include the action in a workflow in another repository, you can use the | ||
`uses` syntax with the `@` symbol to reference a specific branch, tag, or commit | ||
hash. | ||
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```yaml | ||
steps: | ||
- name: Checkout | ||
id: checkout | ||
uses: actions/checkout@v4 | ||
- name: Test Local Action | ||
id: test-action | ||
uses: actions/typescript-action@v1 # Commit with the `v1` tag | ||
with: | ||
milliseconds: 1000 | ||
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- name: Print Output | ||
id: output | ||
run: echo "${{ 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. | ||
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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: | ||
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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. |
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