davidzollo opened a new pull request, #10973:
URL: https://github.com/apache/seatunnel/pull/10973
## Purpose
The `seatunnel-engine-ui` module's `node_modules` directory has grown to
**388 MB**, with several packages either unused, miscategorised, or replaceable
with lighter alternatives. This PR addresses the root causes.
## Changes
### 1. Remove unused direct dependencies
- **`date-fns-tz`** (572 KB) — declared in `dependencies` but never imported
anywhere in the source code.
- **`date-fns`** (36 MB) — only used for a single `parse()` call in
`detail.tsx`. Replaced with native `new Date(str.replace(' ', 'T'))`, which
handles the `yyyy-MM-dd HH:mm:ss` format produced by the SeaTunnel backend.
### 2. Replace `@vicons/ionicons5` (33 MB) with inline SVG components
- The package ships 2,672 files but only **4 icons** were used:
`DesktopOutline`, `ListOutline`, `PeopleOutline`, `PersonOutline`.
- Added `src/components/icons/index.ts` containing the four icons as
lightweight Vue components (SVG paths copied verbatim from the original package
source).
- Updated `sidebar/index.tsx` to import from the local file.
### 3. Replace `sass-embedded` with `sass` in devDependencies
- `sass-embedded` pulled in **`colorjs.io` (8 MB)** and **`rxjs` (11 MB)**
as transitive dependencies.
- The plain `sass` package (JavaScript implementation, same API) has no such
transitive overhead and is fully compatible with the project's SCSS files.
### 4. Move build-time tools to `devDependencies`
- `tailwindcss`, `postcss`, `autoprefixer` were incorrectly placed in
`dependencies` (runtime). Moved to `devDependencies` (build-time only). This
also enables future CI optimisation with `npm install --omit=dev`.
## Estimated savings
| Change | Saved |
|--------|-------|
| Remove `date-fns` + `date-fns-tz` | ~36 MB |
| Remove `@vicons/ionicons5` | ~33 MB |
| `sass` vs `sass-embedded` chain | ~20 MB |
| **Total** | **~90 MB** |
## Verification
- `npm install` — clean install succeeds ✓
- `npm run build-only` — Vite production build succeeds with 3,151 modules
transformed ✓
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