browsertrix/frontend/README.md
sua yoo 6fabea3e7a
Frontend build fixes (#191)
* copy specific files
* replace api host env var
* remove unused dotenv
* Update frontend/webpack.dev.js
Co-authored-by: Ilya Kreymer <ikreymer@users.noreply.github.com>
2022-03-10 23:26:21 -08:00

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# Browsertrix Cloud frontend
## Quickstart
Install dependencies:
```sh
yarn
```
Copy environment variables from the sample file:
```sh
cp sample.env.local .env.local
```
Update `API_BASE_URL` in `.env.local` to point to your dev backend API. For example:
```
API_BASE_URL=http://dev.example.com/api
```
Start the dev server:
```sh
yarn start
```
This will open `localhost:9870` in a new tab in your default browser.
To develop against a local instance of the backend API,
follow instructions for deploying to a local Docker instance. Update `API_BASE_URL` and then restart the dev server.
## Scripts
| `yarn <name>` | |
| ------------------ | --------------------------------------------------------------- |
| `start` | runs app in development server, reloading on file changes |
| `test` | runs tests in chromium with playwright |
| `build-dev` | bundles app and outputs it in `dist` directory |
| `build` | bundles app, optimized for production, and outputs it to `dist` |
| `lint` | find and fix auto-fixable javascript errors |
| `format` | formats js, html and css files |
| `localize:extract` | generate XLIFF file to be translated |
| `localize:build` | output a localized version of strings/templates |
## Testing
Tests assertions are written in [Chai](https://www.chaijs.com/api/bdd/).
To watch for file changes while running tests:
```sh
yarn test --watch
```
To run tests in multiple browsers:
```sh
yarn test --browsers chromium firefox webkit
```
## Localization
Wrap text or templates in the `msg` helper to make them localizable:
```js
// import from @lit/localize:
import { msg } from "@lit/localize";
// later, in the render function:
render() {
return html`
<button>
${msg("Click me")}
</button>
`
}
```
Entire templates can be wrapped as well:
```js
render() {
return msg(html`
<p>Click the button</p>
<button>Click me</button>
`)
}
```
See: <https://lit.dev/docs/localization/overview/#message-types>
To add new languages:
1. Add [BCP 47 language tag](https://www.w3.org/International/articles/language-tags/index.en) to `targetLocales` in `lit-localize.json`
2. Run `yarn localize:extract` to generate new .xlf file in `/xliff`
3. Provide .xlf file to translation team
4. Replace .xlf file once translated
5. Run `yarn localize:build` bring translation into `src`
See: <https://lit.dev/docs/localization/overview/#extracting-messages>