appDir config option creates both _app and custom dir

[frederikhors]

Describe the bug
If I change the appDir config to app instead of the default _app (Golang doesn't serve directories starting with _) the build dir contains both app and _app!

Before you ask: I deleted the build dir before build.

Expected behavior
To only have my app dir.

Information about your SvelteKit Installation:

Diagnostics

System:
OS: Windows 10 10.0.19042
Binaries:
Node: 14.16.0 - C:\Program Files\nodejs\node.EXE
npm: 7.8.0 - C:\Program Files\nodejs\npm.CMD
npmPackages:
@sveltejs/kit: 1.0.0-next.70 => 1.0.0-next.70
svelte: 3.37.0 => 3.37.0
vite: 2.1.5 => 2.1.5

• Your adapter: static 1.0.0-next.4

[lval]

I also had this problem. I solved this by removing everything inside the build and .svelte directories.

[kayakyakr]

Thanks @lval I was starting to struggle with this one too

[ecstrema]

Deleting the svelte directory worked for me too.
Should svelte kit detect changes in the basepath and remove the old directory? This is the kind of thing that can go unnoticed for a while.

[ignatiusmb]

This can be configured and are now documented by #2135

[ecstrema]

My PR #2135 doesn't change anything about this issue. I believe it should be reopened.

This can be configured and are now documented by #2135

Unless there's something I don't get, it was already configurable, but that's exactly the point of this issue.

[ignatiusmb]

Yes it doesn't, but your PR now documents the problem and what users are supposed to do, which is what this issue was about, isn't it?

There's also #2260 that would clear out the build directory for adapter-static before building, which I guess would also solve this issue, seeing how it works from the comments above by removing the build directory.

[ecstrema]

Most people that renamed their appDir folder will not read the docs from my PR, since they are specifically for GitHub Pages.

#2260 would indeed probably fix it, but ideally, a complete rebuild should not be needed.