Module session_fs 

Custom session filesystem provider (virtualizable filesystem layer). Session filesystem provider — virtualizable filesystem layer over JSON-RPC.

When ClientOptions::session_fs is set, the SDK tells the CLI to delegate all per-session filesystem operations (readFile, writeFile, stat, …) to a SessionFsProvider registered on each session. This lets host applications sandbox sessions, project files into in-memory or remote storage, and apply permission policies before bytes move.

Concurrency

Each inbound sessionFs.* request is dispatched on its own spawned task, matching Node’s behavior. Provider implementations MUST be safe for concurrent invocation across distinct paths. Use internal synchronization (e.g. tokio::sync::Mutex keyed by path) if your backing store needs ordering.

Errors

Provider methods return Result<T, FsError>. The SDK adapts these into the schema’s { ..., error: Option<SessionFsError> } payload, mapping FsError::NotFound to the wire’s ENOENT and everything else to UNKNOWN. A From<std::io::Error> conversion is provided so handlers backed by tokio::fs can propagate io::Error with ?.

Example

use std::sync::Arc;
use async_trait::async_trait;
use github_copilot_sdk::types::{SessionFsProvider, FsError, FileInfo, DirEntry};

struct MyProvider;

#[async_trait]
impl SessionFsProvider for MyProvider {
    async fn read_file(&self, path: &str) -> Result<String, FsError> {
        std::fs::read_to_string(path)
            .map_err(FsError::from)
    }
}

Structs

DirEntry

Single entry in a directory listing returned by SessionFsProvider::readdir_with_types.

FileInfo

File or directory metadata returned by SessionFsProvider::stat.

SessionFsConfig

Configuration for a custom session filesystem provider.

Enums

DirEntryKind

Kind of entry returned by SessionFsProvider::readdir_with_types.

FsError

Error returned by a SessionFsProvider method.

SessionFsConventions

Path conventions used by a session filesystem provider.

Traits

SessionFsProvider

Implementor-supplied filesystem backing for a session.