feat: Support for Generic FS for Node Compatibility

[theswerd]

Added Trait Generics to allow Deno Node Compatibility to support other Fs environments.

[theswerd]

No longer sure this is possible with current setup — cc @denoteam any thoughts?

[dsherret]

Added Trait Generics to allow Deno Node Compatibility to support other Fs environments.

I'm currently doing a big refactor to get the CLI and all the resolver code to not use ext::fs's FileSystem trait: #27480 (after this PR, I'm going to follow-up with another one so that an ext::fs FileSystem is only used in ext::fs)

That said, you can currently support whatever file system you want by implementing a custom ext::fs::FileSystem. For example, this is what deno compile does:

deno/cli/standalone/file_system.rs

Line 60 in c45d0da

impl FileSystem for DenoCompileFileSystem {

(though, I'm not sure if it's worth it to implement this for your situation atm given I'm about to do this big refactor)