GitHub Actions Toolkit

The GitHub Actions ToolKit provides a set of packages to make creating actions easier.

Get started with the javascript-action template!

Packages

✔️ @actions/core

Provides functions for inputs, outputs, results, logging, secrets and variables. Read more here

npm install @actions/core

🏃 @actions/exec

Provides functions to exec cli tools and process output. Read more here

npm install @actions/exec

🍨 @actions/glob

Provides functions to search for files matching glob patterns. Read more here

npm install @actions/glob

☎️ @actions/http-client

A lightweight HTTP client optimized for building actions. Read more here

npm install @actions/http-client

✏️ @actions/io

Provides disk i/o functions like cp, mv, rmRF, which etc. Read more here

npm install @actions/io

🔨 @actions/tool-cache

Provides functions for downloading and caching tools. e.g. setup-* actions. Read more here

See @actions/cache for caching workflow dependencies.

npm install @actions/tool-cache

@actions/github

Provides an Octokit client hydrated with the context that the current action is being run in. Read more here

npm install @actions/github

💾 @actions/artifact

Provides functions to interact with actions artifacts. Read more here

npm install @actions/artifact

🎯 @actions/cache

Provides functions to cache dependencies and build outputs to improve workflow execution time. Read more here

npm install @actions/cache

🔏 @actions/attest

Provides functions to write attestations for workflow artifacts. Read more here

npm install @actions/attest

Creating an Action with the Toolkit

❓ Choosing an action type

Outlines the differences and why you would want to create a JavaScript or a container based action.

➰ Versioning

Actions are downloaded and run from the GitHub graph of repos. This contains guidance for versioning actions and safe releases.

⚠️ Problem Matchers

Problem Matchers are a way to scan the output of actions for a specified regex pattern and surface that information prominently in the UI.

⚠️ Proxy Server Support

Self-hosted runners can be configured to run behind proxy servers.

Hello World JavaScript Action

Illustrates how to create a simple hello world javascript action.

...
  const nameToGreet = core.getInput('who-to-greet');
  console.log(`Hello ${nameToGreet}!`);
...

JavaScript Action Walkthrough

Walkthrough and template for creating a JavaScript Action with tests, linting, workflow, publishing, and versioning.

async function run() {
  try {
    const ms = core.getInput('milliseconds');
    console.log(`Waiting ${ms} milliseconds ...`)
    ...

PASS ./index.test.js
  ✓ throws invalid number
  ✓ wait 500 ms
  ✓ test runs

Test Suites: 1 passed, 1 total
Tests:       3 passed, 3 total

TypeScript Action Walkthrough

Walkthrough creating a TypeScript Action with compilation, tests, linting, workflow, publishing, and versioning.

import * as core from '@actions/core';

async function run() {
  try {
    const ms = core.getInput('milliseconds');
    console.log(`Waiting ${ms} milliseconds ...`)
    ...

PASS ./index.test.js
  ✓ throws invalid number
  ✓ wait 500 ms
  ✓ test runs

Test Suites: 1 passed, 1 total
Tests:       3 passed, 3 total

Docker Action Walkthrough

Create an action that is delivered as a container and run with docker.

FROM alpine:3.10
COPY LICENSE README.md /
COPY entrypoint.sh /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]

Docker Action Walkthrough with Octokit

Create an action that is delivered as a container which uses the toolkit. This example uses the GitHub context to construct an Octokit client.

FROM node:slim
COPY . .
RUN npm install --production
ENTRYPOINT ["node", "/lib/main.js"]

const myInput = core.getInput('myInput');
core.debug(`Hello ${myInput} from inside a container`);

const context = github.context;
console.log(`We can even get context data, like the repo: ${context.repo.repo}`)

Note

Thank you for your interest in this GitHub repo, however, right now we are not taking contributions.

We continue to focus our resources on strategic areas that help our customers be successful while making developers' lives easier. While GitHub Actions remains a key part of this vision, we are allocating resources towards other areas of Actions and are not taking contributions to this repository at this time. The GitHub public roadmap is the best place to follow along for any updates on features we’re working on and what stage they’re in.

We are taking the following steps to better direct requests related to GitHub Actions, including:

1. We will be directing questions and support requests to our Community Discussions area

2. High Priority bugs can be reported through Community Discussions or you can report these to our support team https://support.github.com/contact/bug-report.

3. Security Issues should be handled as per our security.md.

We will still provide security updates for this project and fix major breaking changes during this time.

You are welcome to still raise bugs in this repo.

Code of Conduct

See our code of conduct.