hedgedoc/README.md

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<!--
SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
SPDX-License-Identifier: CC-BY-SA-4.0
-->
# HedgeDoc - React Client
![test, build](https://github.com/hedgedoc/react-client/workflows/test,%20build/badge.svg)
![e2e](https://github.com/hedgedoc/react-client/workflows/e2e/badge.svg)
![lint](https://github.com/hedgedoc/react-client/workflows/lint/badge.svg)
[![Language grade: JavaScript](https://img.shields.io/lgtm/grade/javascript/g/hedgedoc/react-client.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/hedgedoc/react-client/context:javascript)
[![Total alerts](https://img.shields.io/lgtm/alerts/g/hedgedoc/react-client.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/hedgedoc/react-client/alerts/)
This is the new, improved and better looking frontend for HedgeDoc 2.0. Our goal is to recreate the current frontend in
react and to improve it.
## Preparation
You need at least Node 14 (we recommend Node 18) and [yarn](https://yarnpkg.com/).
You MUST use yarn! There is no support for npm.
## Development mode
1. Clone this repo (e.g. `git clone https://github.com/hedgedoc/react-client.git hedgedoc-react-client`)
2. Go inside the repo (e.g. `cd hedgedoc-react-client`)
3. Run `yarn install`
4. Either run
- `yarn dev` - Calls only mocked version of the api. Doesn't need a HedgeDoc backend.
- `yarn start:for-real-backend` -
Expects [a HedgeDoc backend server](https://github.com/hedgedoc/hedgedoc/tree/develop) running
under [http://localhost:3000](http://localhost:3000))
This should run the app in the development mode and open [http://localhost:3001](http://localhost:3001) in your browser.
The page will reload if you make edits. You will also see any lint errors in the console.
### Tests
#### Unit
Unit testing is done via jest.
1. Run `yarn test`
#### End2End
We use [cypress](https://cypress.io) for e2e tests.
1. Start the frontend with `yarn dev:test` in dev test mode or build a test build with `yarn build:test` which you can
serve with `yarn serve:build`
Don't use the regular start/build command, or the tests will fail!
2. Run `yarn cy:open` to open the cypress test loader
3. Choose your browser and test
4. Let the tests run
### Bundle analysis
You can inspect the generated production-bundle files to look for optimization issues.
1. Run `yarn analyze`
2. Open the generated `.next/server/analyze/server.html` in your favourite browser
## Production mode
1. Clone this repo (e.g. `git clone https://github.com/hedgedoc/react-client.git hedgedoc-react-client`)
2. Go inside the repo (e.g. `cd hedgedoc-react-client`)
3. Run `yarn install`
4. Run `yarn build`
This will build the app in production mode and save it into the `.next` folder. The production build is optimized for
best performance, minimized and the filenames include a hash value of the content. Don't edit them by hand!
You can run the production build using the built-in server with `yarn start`.
You MUST provide the environment variable `HD_EDITOR_BASE_URL` with protocol, domain and (if needed) path (e.g. `http://127.0.0.1:3001/`) so the app knows under which URL it is available in the browser.
You can also provide `HD_RENDERER_BASE_URL` if the renderer should use another domain than the editor. This is recommended for security reasons but not mandatory.
## UI Test
Curious about the new look and feel? We provide a demo of the new UI on [hedgedoc.dev](https://hedgedoc.dev). This version uses mocked data and has no data persistence.
The UI test is hosted by [netlify](https://netlify.com). Please check their [privacy policy](https://netlify.com/privacy) as well as [ours](https://hedgedoc.org/privacy-policy).