dx serve does not build if the process is backgrounded

[miguelpduarte]

Problem

If the call to dx serve is backgrounded, it freezes the build process. It resumes as soon as the process is brought back to the foreground.

Steps To Reproduce

Steps to reproduce the behavior:

• Launch the dev server in a Dioxus project and background it: dx serve &
• Visit the browser in the expected http://localhost:8080/
• See that the webpage is frozen and permanently loading
• Issue fg in the same terminal as in the first step
• Notice that immediately the build process resumes and website is loaded correctly (we do not get the prompt back, though)

Expected behavior

dx serve should be able to be backgrounded without interrupting the build process.

The CLI command should detect

Screenshots

N/A

Environment:

• Dioxus version: CLI: dioxus 0.6.1 (c2952a7), 0.6.1 in cargo project.
• Rust version: 1.82.0
• OS info: MacOS
• App platform: web

Additional information

• This is especially relevant when using Dioxus as a Tauri front-end, as the beforeDevCommand foregrounds the dx serve command, which then makes the whole website not load.
• Even though dx serve has a -i option (interactive), the issue persists even with -i false. This option should ideally remove the need for having a tty session attached, hiding output and building with hot-reloading silently in the background.

Questionnaire

I don't have time to fix this right now, but maybe later