277 lines
15 KiB
Markdown
277 lines
15 KiB
Markdown
<!-- START doctoc generated TOC please keep comment here to allow auto update -->
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<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
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# Contributing
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- [Requirements](#requirements)
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- [Creating pull requests](#creating-pull-requests)
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- [Commits and commit history](#commits-and-commit-history)
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- [Development workflow](#development-workflow)
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- [Updates to VS Code](#updates-to-vs-code)
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- [Build](#build)
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- [Test](#test)
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- [Unit tests](#unit-tests)
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- [Integration tests](#integration-tests)
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- [End-to-end tests](#end-to-end-tests)
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- [Structure](#structure)
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- [Modifications to VS Code](#modifications-to-vs-code)
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- [Currently Known Issues](#currently-known-issues)
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<!-- END doctoc generated TOC please keep comment here to allow auto update -->
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- [Detailed CI and build process docs](../ci)
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## Requirements
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The prerequisites for contributing to code-server are almost the same as those
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for [VS
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Code](https://github.com/Microsoft/vscode/wiki/How-to-Contribute#prerequisites).
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Here is what is needed:
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- `node` v14.x
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- `git` v2.x or greater
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- [`git-lfs`](https://git-lfs.github.com)
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- [`yarn`](https://classic.yarnpkg.com/en/)
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- Used to install JS packages and run scripts
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- [`nfpm`](https://classic.yarnpkg.com/en/)
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- Used to build `.deb` and `.rpm` packages
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- [`jq`](https://stedolan.github.io/jq/)
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- Used to build code-server releases
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- [`gnupg`](https://gnupg.org/index.html)
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- All commits must be signed and verified; see GitHub's [Managing commit
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signature
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verification](https://docs.github.com/en/github/authenticating-to-github/managing-commit-signature-verification)
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or follow [this tutorial](https://joeprevite.com/verify-commits-on-github)
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- `build-essential` (Linux only - used by VS Code)
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- Get this by running `apt-get install -y build-essential`
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- `rsync` and `unzip`
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- Used for code-server releases
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- `bats`
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- Used to run script unit tests
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## Creating pull requests
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Please create a [GitHub Issue](https://github.com/cdr/code-server/issues) that
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includes context for issues that you see. You can skip this if the proposed fix
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is minor.
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In your pull requests (PR), link to the issue that the PR solves.
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Please ensure that the base of your PR is the **main** branch.
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### Commits and commit history
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We prefer a clean commit history. This means you should squash all fixups and
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fixup-type commits before asking for a review (e.g., clean up, squash, then force
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push). If you need help with this, feel free to leave a comment in your PR, and
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we'll guide you.
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## Development workflow
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```shell
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yarn
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yarn watch
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# Visit http://localhost:8080 once the build is completed.
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```
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`yarn watch` will live reload changes to the source.
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### Updates to VS Code
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1. Update the package tag listed in `vendor/package.json`:
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```json
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{
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"devDependencies": {
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"vscode": "cdr/vscode#X.XX.X-code-server"
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}
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}
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```
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2. From the code-server **project root**, run `yarn install`.
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Then, test code-server locally to make sure everything works.
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1. Check the Node.js version that's used by Electron (which is shipped with VS
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Code. If necessary, update your version of Node.js to match.
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1. Open a PR
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> Watch for updates to
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> `vendor/modules/code-oss-dev/src/vs/code/browser/workbench/workbench.html`. You may need to
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> make changes to `src/browser/pages/vscode.html`.
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### Build
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You can build as follows:
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```shell
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yarn build
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yarn build:vscode
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yarn release
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```
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Run your build:
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```shell
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cd release
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yarn --production
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# Runs the built JavaScript with Node.
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node .
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```
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Build the release packages (make sure that you run `yarn release` first):
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```shell
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yarn release:standalone
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yarn test:standalone-release
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yarn package
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```
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> On Linux, the currently running distro will become the minimum supported
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> version. In our GitHub Actions CI, we use CentOS 7 for maximum compatibility.
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> If you need your builds to support older distros, run the build commands
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> inside a Docker container with all the build requirements installed.
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### Test
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There are three kinds of tests in code-server:
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1. Unit tests
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2. Integration tests
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3. End-to-end tests
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### Unit tests
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Our unit tests are written in TypeScript and run using
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[Jest](https://jestjs.io/), the testing framework].
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These live under [test/unit](../test/unit).
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We use unit tests for functions and things that can be tested in isolation. The file structure is modeled closely after `/src` so it's easy for people to know where test files should live.
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### Integration tests
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These are a work in progress. We build code-server and run a script called
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[test-standalone-release.sh](../ci/build/test-standalone-release.sh), which
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ensures that code-server's CLI is working.
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Our integration tests look at components that rely on one another. For example,
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testing the CLI requires us to build and package code-server.
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### End-to-end tests
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The end-to-end (e2e) tests are written in TypeScript and run using
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[Playwright](https://playwright.dev/).
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These live under [test/e2e](../test/e2e).
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Before the e2e tests run, we run `globalSetup`, which eliminates the need to log
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in before each test by preserving the authentication state.
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Take a look at `codeServer.test.ts` to see how you would use it (see
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`test.use`).
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We also have a model where you can create helpers to use within tests. See
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[models/CodeServer.ts](../test/e2e/models/CodeServer.ts) for an example.
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Generally speaking, e2e means testing code-server while running in the browser
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and interacting with it in a way that's similar to how a user would interact
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with it. When running these tests with `yarn test:e2e`, you must have
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code-server running locally. In CI, this is taken care of for you.
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## Structure
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The `code-server` script serves as an HTTP API for login and starting a remote VS
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Code process.
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The CLI code is in [src/node](../src/node) and the HTTP routes are implemented
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in [src/node/routes](../src/node/routes).
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Most of the meaty parts are in the VS Code portion of the codebase under
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[vendor/modules/code-oss-dev](../vendor/modules/code-oss-dev), which we describe next.
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### Modifications to VS Code
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In v1 of code-server, we had a patch of VS Code that split the codebase into a
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front-end and a server. The front-end consisted of the UI code, while the server
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ran the extensions and exposed an API to the front-end for file access and all
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UI needs.
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Over time, Microsoft added support to VS Code to run it on the web. They have
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made the front-end open source, but not the server. As such, code-server v2 (and
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later) uses the VS Code front-end and implements the server. We do this by using
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a Git subtree to fork and modify VS Code. This code lives under
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[vendor/modules/code-oss-dev](../vendor/modules/code-oss-dev).
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Some noteworthy changes in our version of VS Code include:
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- Adding our build file, [`vendor/modules/code-oss-dev/coder.js`](../vendor/modules/code-oss-dev/coder.js), which includes build steps specific to code-server
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- Node.js version detection changes in [`build/lib/node.ts`](../vendor/modules/code-oss-dev/build/lib/node.ts) and [`build/lib/util.ts`](../vendor/modules/code-oss-dev/build/lib/util.ts)
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- Allowing extra extension directories
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- Added extra arguments to [`src/vs/platform/environment/common/argv.ts`](../vendor/modules/code-oss-dev/src/vs/platform/environment/common/argv.ts) and to [`src/vs/platform/environment/node/argv.ts`](../vendor/modules/code-oss-dev/src/vs/platform/environment/node/argv.ts)
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- Added extra environment state to [`src/vs/platform/environment/common/environment.ts`](../vendor/modules/code-oss-dev/src/vs/platform/environment/common/environment.ts);
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- Added extra getters to [`src/vs/platform/environment/common/environmentService.ts`](../vendor/modules/code-oss-dev/src/vs/platform/environment/common/environmentService.ts)
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- Added extra scanning paths to [`src/vs/platform/extensionManagement/node/extensionsScanner.ts`](../vendor/modules/code-oss-dev/src/vs/platform/extensionManagement/node/extensionsScanner.ts)
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- Additions/removals from [`package.json`](../vendor/modules/code-oss-dev/package.json):
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- Removing `electron`, `keytar` and `native-keymap` to avoid pulling in desktop dependencies during build on Linux
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- Removing `gulp-azure-storage` and `gulp-tar` (unsued in our build process, may pull in outdated dependencies)
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- Adding `proxy-agent`, `proxy-from-env` (for proxying) and `rimraf` (used during build/install steps)
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- Adding our branding/custom URLs/version:
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- [`product.json`](../vendor/modules/code-oss-dev/product.json)
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- [`src/vs/base/common/product.ts`](../vendor/modules/code-oss-dev/src/vs/base/common/product.ts)
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- [`src/vs/workbench/browser/parts/dialogs/dialogHandler.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/browser/parts/dialogs/dialogHandler.ts)
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- [`src/vs/workbench/contrib/welcome/page/browser/vs_code_welcome_page.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/contrib/welcome/page/browser/vs_code_welcome_page.ts)
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- [`src/vs/workbench/contrib/welcome/page/browser/welcomePage.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/contrib/welcome/page/browser/welcomePage.ts)
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- Removing azure/macOS signing related dependencies from [`build/package.json`](../vendor/modules/code-oss-dev/build/package.json)
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- Modifying `.gitignore` to allow us to add files to `src/vs/server` and modifying `.eslintignore` to ignore lint on the shared files below (we use different formatter settings than VS Code).
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- Sharing some files with our codebase via symlinks:
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- [`src/vs/base/common/ipc.d.ts`](../vendor/modules/code-oss-dev/src/vs/base/common/ipc.d.ts) points to [`typings/ipc.d.ts`](../typings/ipc.d.ts)
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- [`src/vs/base/common/util.ts`](../vendor/modules/code-oss-dev/src/vs/base/common/util.ts) points to [`src/common/util.ts`](../src/common/util.ts)
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- [`src/vs/base/node/proxy_agent.ts`](../vendor/modules/code-oss-dev/src/vs/base/node/proxy_agent.ts) points to [`src/node/proxy_agent.ts`](../src/node/proxy_agent.ts)
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- Allowing socket changes by adding `setSocket` in [`src/vs/base/parts/ipc/common/ipc.net.ts`](../vendor/modules/code-oss-dev/src/vs/base/parts/ipc/common/ipc.net.ts)
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- We use this for connection persistence in our server-side code.
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- Added our server-side Node.JS code to `src/vs/server`.
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- This code includes the logic to spawn the various services (extension host, terminal, etc.) and some glue
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- Added [`src/vs/workbench/browser/client.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/browser/client.ts) to hold some server customizations.
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- Includes the functionality for the Log Out command and menu item
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- Also, imported and called `initialize` from the main web file, [`src/vs/workbench/browser/web.main.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/browser/web.main.ts)
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- Added a (hopefully temporary) hotfix to [`src/vs/workbench/common/resources.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/common/resources.ts) to get context menu actions working for the Git integration.
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- Added connection type to WebSocket query parameters in [`src/vs/platform/remote/common/remoteAgentConnection.ts`](../vendor/modules/code-oss-dev/src/vs/platform/remote/common/remoteAgentConnection.ts)
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- Added `CODE_SERVER*` variables to the sanitization list in [`src/vs/base/common/processes.ts`](../vendor/modules/code-oss-dev/src/vs/base/common/processes.ts)
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- Fix localization support:
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- Added file [`src/vs/workbench/services/localizations/browser/localizationsService.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/services/localizations/browser/localizationsService.ts).
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- Modified file [`src/vs/base/common/platform.ts`](../vendor/modules/code-oss-dev/src/vs/base/common/platform.ts)
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- Modified file [`src/vs/base/node/languagePacks.js`](../vendor/modules/code-oss-dev/src/vs/base/node/languagePacks.js)
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- Added code to allow server to inject settings to [`src/vs/platform/product/common/product.ts`](../vendor/modules/code-oss-dev/src/vs/platform/product/common/product.ts)
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- Extension fixes:
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- Avoid disabling extensions by extensionKind in [`src/vs/workbench/services/extensionManagement/browser/extensionEnablementService.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/services/extensionManagement/browser/extensionEnablementService.ts) (Needed for vscode-icons)
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- Remove broken symlinks in [`extensions/postinstall.js`](../vendor/modules/code-oss-dev/extensions/postinstall.js)
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- Add tip about extension gallery in [`src/vs/workbench/contrib/extensions/browser/extensionsViewlet.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/contrib/extensions/browser/extensionsViewlet.ts)
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- Use our own server for GitHub authentication in [`extensions/github-authentication/src/githubServer.ts`](../vendor/modules/code-oss-dev/extensions/github-authentication/src/githubServer.ts)
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- Settings persistence on the server in [`src/vs/workbench/services/environment/browser/environmentService.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/services/environment/browser/environmentService.ts)
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- Add extension install fallback in [`src/vs/workbench/services/extensionManagement/common/extensionManagementService.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/services/extensionManagement/common/extensionManagementService.ts)
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- Add proxy-agent monkeypatch and keep extension host indefinitely running in [`src/vs/workbench/services/extensions/node/extensionHostProcessSetup.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/services/extensions/node/extensionHostProcessSetup.ts)
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- Patch build system to avoid removing extension dependencies for `yarn global add` users in [`build/lib/extensions.ts`](../vendor/modules/code-oss-dev/build/lib/extensions.ts)
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- Allow all extensions to use proposed APIs in [`src/vs/workbench/services/environment/browser/environmentService.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/services/environment/browser/environmentService.ts)
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- Make storage writes async to allow extensions to wait for them to complete in [`src/vs/platform/storage/common/storage.ts`](../vendor/modules/code-oss-dev/src/vs/platform/storage/common/storage.ts)
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- Specify webview path in [`src/vs/code/browser/workbench/workbench.ts`](../vendor/modules/code-oss-dev/src/vs/code/browser/workbench/workbench.ts)
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- URL readability improvements for folder/workspace in [`src/vs/code/browser/workbench/workbench.ts`](../vendor/modules/code-oss-dev/src/vs/code/browser/workbench/workbench.ts)
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- Socket/Authority-related fixes (for remote proxying etc.):
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- [`src/vs/code/browser/workbench/workbench.ts`](../vendor/modules/code-oss-dev/src/vs/code/browser/workbench/workbench.ts)
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- [`src/vs/platform/remote/browser/browserSocketFactory.ts`](../vendor/modules/code-oss-dev/src/vs/platform/remote/browser/browserSocketFactory.ts)
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- [`src/vs/base/common/network.ts`](../vendor/modules/code-oss-dev/src/vs/base/common/network.ts)
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- Added code to write out IPC path in [`src/vs/workbench/api/node/extHostCLIServer.ts`](../vendor/modules/code-oss-dev/src/vs/workbench/api/node/extHostCLIServer.ts)
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As the web portion of VS Code matures, we'll be able to shrink and possibly
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eliminate our modifications. In the meantime, upgrading the VS Code version requires
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us to ensure that our changes are still applied and work as intended. In the future,
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we'd like to run VS Code unit tests against our builds to ensure that features
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work as expected.
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> We have [extension docs](../ci/README.md) on the CI and build system.
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If the functionality you're working on does NOT depend on code from VS Code, please
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move it out and into code-server.
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### Currently Known Issues
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- Creating custom VS Code extensions and debugging them doesn't work
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- Extension profiling and tips are currently disabled
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