eugene yokota

Closing this in favor of https://github.com/sbt/sbt/pull/8199

I asked ChatGPT about this. - On Windows, it's possible to make symbolic links for files, however you need to run the application with Administrator privileges. - On Windows 10...

I don't think junction would work for us since mapping directories won't give us the flexibility of naming the blob with hash in CAS, and symlinking it with useful names...

I'll try to send a PR for fallback so at least the whole thing would function on Windows.

The shading logic assumes `exportJars := false`.

sbt 1.x uses target directory and task timing as disk cache for example "succeeded_test" or Analysis store. sbt 2.x moves these adhoc storage to a machine-wide location. So while I...

> We should not encourage it. But why should it be impossible? Generally I don't want to increase the variability of the task semantics. So by not supporting, I mean...

In sbt 1.x world, it's not uncommon to pepper CI script with `clean` even when the machine is checking out a fresh copy from `git`. sbt 2.x implements incremental test...

> Fixing the root cause is easier said than done. The compiler is pretty good at incremental compilation. But there are bugs that are incremental-compilation-specific, and that go away with...

Taking 19s for no-op build is pretty bad. I don't know if it's machine-widedness exactly that's causing it or general adoption of using SHA256 content hash as content hash. But...