The --root option is lost on configuration updates and restarts

[tschaub]

What version of astro are you using?

[email protected]

Are you using an SSR adapter? If so, which one?

None

What package manager are you using?

npm

What operating system are you using?

Mac

Describe the Bug

If you use the --root option to work with source files in an alternate location, the dev server doesn't remember this option on configuration changes and restarts.

To reproduce the issue, see the example below or do this:

• start with a new "Empty" Astro project
• create a site directory
• move src and astro.config.mjs into site
• add the --root ./site option to the astro scripts in package.json
• restart the dev server to see everything working
• make a change to one of the configuration files (e.g. tsconfig.json), see the dev server restart and forget the --root option

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-ewfvvj?file=package.json,astro.config.mjs,tsconfig.json,README.md&on=stackblitz

Participation

• I am willing to submit a pull request for this issue.