Module FileSystem 

FileSystem Effect (CreateEffectForRequest)

Effect constructors for the FileSystem.* RPC family. Each handler delegates to the FileSystemReader or FileSystemWriter provider trait on MountainEnvironment. All methods accept file:// URIs from Cocoon and strip the scheme before passing a native PathBuf to the provider.

Methods handled

Method	Provider	Description
FileSystem.ReadFile	FileSystemReader	Read raw bytes from a file
FileSystem.WriteFile	FileSystemWriter	Write bytes to a file
FileSystem.ReadDirectory	FileSystemReader	List directory entries
FileSystem.Stat	FileSystemReader	Get file metadata
FileSystem.CreateDirectory	FileSystemWriter	Create a directory (optionally recursive)
FileSystem.Delete	FileSystemWriter	Delete a file or directory
FileSystem.Rename	FileSystemWriter	Rename/move a file or directory
FileSystem.Copy	FileSystemWriter	Copy a file or directory tree

VS Code reference

vs/platform/files/common/fileService.ts, vs/base/parts/ipc/common/ipc.net.ts

Functions

CreateEffect

StripFileUriScheme 🔒

Strip a leading file:// (or file:///) scheme from the incoming path. Cocoon sends full URIs like file:///<home>/.land/extensions/... through FileSystem.ReadFile/WriteFile/ReadDirectory; PathBuf from such a string treats the scheme literally and every read 404s. Without this the redhat.java activation (and any other extension that uses the gRPC fs.readFile path for its own package.json) fails with “Resource not found: file:///…”.