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Stirling-PDF/frontend/README.md
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James Brunton 37a48aa7a7 Replace ESLint and dpdm with Oxlint (#7330)
# Description of Changes
Smaller scope than #6689 to try and get this finished.

Replace ESLint and dpdm with Oxlint, a TS linter written in Rust so its
performance is dramatically better than the existing tools we use.

## Speed improvement
- Current ESLint run: 13.76s
- Current dpdm run: 3.59s
- Total time: 17.35s
- New Oxlint run: 0.90s

So Oxlint is about a 20x speed improvement.

## Differences
When I last tried to do this, we could recreate our rules identically
with Oxlint, but that's not true any more. Oxlint has no current
equivalent for ESLint's `no-restricted-syntax` rule, which we were using
to ban usages of `<button>` and stuff in specific components to try and
encourage them to use our shared UI. This is a very recent addition to
our linting config, and personally I'm willing to drop it for now at
least. We can still ban specific imports in files, so the files which we
were trying to enforce shared UI will still ban directly importing
Mantine, so that'll probably be most of the cases still caught, but I
think there are other ways we can encourage using the shared UI beyond
just using the linter for it.

I did try building a custom TS rule for it and it only slowed it down a
tiny bit (it took 1.1s) but it had to be built on an unreleased alpha
API which just sounds like a maintenance headache we don't need to deal
with for a rule that we don't really need.
2026-08-07 16:02:11 +00:00

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# Frontend
All frontend commands are run from the repository root using [Task](https://taskfile.dev/):
- `task frontend:dev` — start Vite dev server (localhost:5173)
- `task frontend:build` — production build
- `task frontend:test` — run tests
- `task frontend:test:watch` — run tests in watch mode
- `task frontend:lint` — run linting
- `task frontend:typecheck` — run TypeScript type checking
- `task frontend:check` — run typecheck + lint + test
- `task frontend:install` — install npm dependencies
For desktop app development, see the [Tauri](#tauri) section below.
## Layout
`frontend/` is a workspace containing one or more apps. Today it holds the
PDF editor under `frontend/editor/`; new apps (the developer portal, etc.)
will sit alongside it as siblings. Shared tooling — `package.json`, `node_modules`,
`.storybook/`, oxlint, Prettier — lives at `frontend/` so every app installs
once and lints with the same config.
## Environment Variables
The editor's environment variables live in committed `.env` files at
`frontend/editor/`:
- `.env` — used by all builds (core, proprietary, and as the base for desktop/SaaS)
- `.env.desktop` — additional vars loaded in desktop (Tauri) mode
- `.env.saas` — additional vars loaded in SaaS mode
These files contain non-secret defaults and are checked into Git, so most dev work needs no further setup.
To override values locally (API keys, machine-specific settings), create an uncommitted sibling `editor/.env.local` / `editor/.env.desktop.local` / `editor/.env.saas.local`. Vite automatically layers these on top of the committed files.
## Docker Setup
For Docker deployments and configuration, see the [Docker README](../docker/README.md).
## Tauri
All desktop tasks are available via [Task](https://taskfile.dev). From the root of the repo:
### Dev
```bash
task desktop:dev
```
This ensures the JLink runtime and backend JAR exist (skipping if already built), then starts Tauri in dev mode.
### Build
```bash
task desktop:build
```
This does a full clean rebuild of the backend JAR and JLink runtime, then builds the Tauri app for production.
Platform-specific dev builds are also available:
```bash
task desktop:build:dev # No bundling
task desktop:build:dev:mac # macOS .app bundle
task desktop:build:dev:windows # Windows NSIS installer
task desktop:build:dev:linux # Linux AppImage
```
### JLink Tasks
You can also run JLink steps individually:
```bash
task desktop:jlink # Build JAR + create JLink runtime
task desktop:jlink:jar # Build backend JAR only
task desktop:jlink:runtime # Create JLink custom JRE only
task desktop:jlink:clean # Remove JLink artifacts
```
### Clean
```bash
task desktop:clean
```
Removes all desktop build artifacts including JLink runtime, bundled JARs, Cargo build, and dist/build directories.