[bug] tauri build hangs if icons point to invalid file

[MasterOdin]

Describe the bug

In the src-tauri/tauri.conf.json file, I misconfigured the tauri -> bundle -> icon array such that it pointed at invalid file paths. When running tauri build, it would then hang on the first "building" step, providing no further feedback until I killed the process. Passing --verbose and --debug provided no further information.

Reproduction

1. Create an app
2. Edit tauri -> bundle -> icon so that it has an invalid path
3. See tauri build hang

Expected behavior

tauri build would not hang, probably returning an error that the icon could not be found or something.

Platform and versions

Operating System - Mac OS, version 12.1.0 X64

Node.js environment
  Node.js - 16.13.1
  @tauri-apps/cli - 1.0.0-beta.10
  @tauri-apps/api - 1.0.0-beta.8

Global packages
  npm - 8.1.2
  yarn - 1.22.17

Rust environment
  rustc - 1.57.0
  cargo - 1.57.0

App directory structure
/.husky
/node_modules
/public
/.github
/src-tauri
/build
/.git
/builder
/src

App
  tauri.rs - 1.0.0-beta.8
  build-type - bundle
  CSP - default-src blob: data: filesystem: ws: wss: http: https: tauri: 'unsafe-eval' 'unsafe-inline' 'self' img-src: 'self'
  distDir - ../build
  devPath - http://127.0.0.1:3000
  framework - React

[amrbashir]

On my windows machine, I can't reproduce this, specifying an invalid path will make the build process fail and not hang. Please provide a minimal repro.

[MasterOdin]

I'm getting the hang consistently in https://github.com/MasterOdin/toychest.dev/tree/tauri-test. Changing

https://github.com/MasterOdin/toychest.dev/blob/ad17b3577e041be05983df123b19349e4a037739/src-tauri/tauri.conf.json#L18

to be "../builder/resources/32x32.png" will get it to successfully bundle.

[amrbashir]

I tried your branch and it built just fine.
Steps:

git clone https://github.com/MasterOdin/toychest.dev --branch tauri-test
cd tauri-test
yarn
yarn tauri build

It should throw an error instead but anyways it didn't just hang indefinitely.
Also I am on Windows, and I see that you're on macOS, so I will wait until someone else can confirm this behavior.

[MasterOdin]

For posterity, my output on running above:

$ yarn tauri build
yarn run v1.22.17
$ tauri build
 app:spawn Running "/Users/mpeveler/code/github/toychest.dev/node_modules/@tauri-apps/cli/bin/tauri-cli tauri build" +0ms

[tauri:build] Running `yarn build`
$ craco build
(node:40462) [DEP0148] DeprecationWarning: Use of deprecated folder mapping "./" in the "exports" field module resolution of the package at /Users/mpeveler/code/github/toychest.dev/node_modules/postcss-safe-parser/node_modules/postcss/package.json.
Update this package.json to use a subpath pattern like "./*".
(Use `node --trace-deprecation ...` to show where the warning was created)
Creating an optimized production build...
Compiled successfully.

File sizes after gzip:

  176.55 KB  build/static/js/2.2aecd05e.chunk.js
  2.43 KB    build/static/js/main.3d514525.chunk.js
  1.91 KB    build/static/css/main.60ee5991.chunk.css
  1.63 KB    build/static/js/3.2df26873.chunk.js
  1.17 KB    build/static/js/runtime-main.7f15fc73.js

The project was built assuming it is hosted at ./.
You can control this with the homepage field in your package.json.

The build folder is ready to be deployed.

Find out more about deployment here:

  https://cra.link/deployment

   Compiling app v0.1.0 (/Users/mpeveler/code/github/toychest.dev/src-tauri)
    Finished release [optimized] target(s) in 34.15s
    Bundling toychest.dev.app

and it hangs there indefinitely. Fixing the path for the icon, and it finishes as expected.

[probablykasper]

Can confirm it happens on https://github.com/probablykasper/tauri-template (npm i && npm run build). Gets stuck at 100% CPU.