`.wxt/tsconfig.json` is cleared and overwritten on rebuild

[hikiko4ern]

Describe the bug

When rebuilding, findEntrypoints is called, which overwrites .wxt/tsconfig.json with the {}:

wxt/packages/wxt/src/core/utils/building/find-entrypoints.ts

Line 39 in 97aa173

await fs.writeJson(resolve(wxt.config.wxtDir, 'tsconfig.json'), {});

which is later overwritten in generateTypesDir with the newly generated content:

wxt/packages/wxt/src/core/utils/building/generate-wxt-dir.ts

Line 51 in d79d7ed

entries.push(await getTsConfigEntry());

For a large enough project, it may take 1-2 seconds between two file writes. The TypeScript Server, which watches for changes to .wxt/tsconfig.json, will see the first change to {} (from findEntrypoints) and rebuild the project, and since .wxt/wxt.d.ts will not be included in the project, the code editor will show errors like

Cannot find name 'defineContentScript'. ts(2304)

until the TS project is rebuilt again after writing the generated .wxt/tsconfig.json from generateTypesDir.

This is what it looks like in the code editor:

save.mp4

---

I have tried changing (hikiko4ern@5e9d43e) the fs.writeJson flag from w to wx so that the file is not overwritten when present, and the problem does not reproduce and the tests pass, but I'm not sure if that breaks something.

Reproduction

https://github.com/hikiko4ern/wxt-tsconfig-truncated

Steps to reproduce

1. pnpm i
2. pnpm dev
3. save any file to trigger rebuild (e.g. entrypoints/dummy1.content.ts)

System Info

System:
  OS: Linux 5.15 Debian GNU/Linux trixie/sid
  CPU: (32) x64 AMD Ryzen 9 7950X3D 16-Core Processor
  Memory: 54.69 GB / 64.76 GB
  Container: Yes
  Shell: 5.9 - /bin/zsh
Binaries:
  Node: 20.15.1 - /mnt/wslg/runtime-dir/fnm_multishells/13782_1722726260960/bin/node
  npm: 10.7.0 - /mnt/wslg/runtime-dir/fnm_multishells/13782_1722726260960/bin/npm
  pnpm: 9.6.0 - /mnt/wslg/runtime-dir/fnm_multishells/13782_1722726260960/bin/pnpm
  bun: 1.1.8 - ~/.bun/bin/bun
Browsers:
  Chrome: 127.0.6533.72
  Chromium: 123.0.6312.105
npmPackages:
  wxt: ^0.19.3 => 0.19.3

Used Package Manager

pnpm

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[aklinker1]

Great find! I forgot about that line, was very confused when you linked to it lol. Yeah, the wx change should be fine!

[aklinker1]

Released in https://github.com/wxt-dev/wxt/releases/tag/wxt-v0.19.4