Make sess dependencies optional with an arf-backed transport
维护者通常 1 天内回复
还没有人认领这个 Issue。
评估
- 难度
- 5/5
- 预计耗时
- 一周以上
- 新手友好度
- 12/100
- Issue 类型
- 重构
- 描述清晰度
- 需要澄清
- 活跃度
- 活跃
- 技术栈
- r, rust, typescript
调研方向
This is an architecture proposal with no comments and no agreed scope, so it is not a starting point for a first contribution. Before any code, read the linked eitsupi/arf#112, #1739, #1829 and #1856 to see which transport boundaries are already decided. Done would be a maintainer-agreed design that separates the sess transport layer from its runtime functionality, with the dependency list for the arf-backed path settled.
由索引模型根据 Issue 内容生成。
描述
Motivation
vscode-R relies on the bundled sess package for session integration, including workspace inspection, viewers, and editor communication.
Although sess is now a pure R package, it still requires third-party dependencies such as processx, later, jsonlite, and rstudioapi.
These complicate installation, particularly in isolated environments managed by renv, pixi, etc.
PR #1856 improves installation isolation but does not eliminate these dependencies.
Meanwhile, arf already provides an IPC server implemented in Rust, potentially making much of sess's R-based communication infrastructure unnecessary.
Goal
Enable vscode-R session integration through arf without requiring third-party R packages.
This does not necessarily mean eliminating sess itself. Its pure-R runtime functionality could remain available while delegating communication to arf.
Ordinary R consoles and other frontends should continue using the existing sess transport.
Proposed direction
- Separate transport from runtime functionality. Reuse sess's existing workspace, viewer, and runtime integration logic across different transports.
- Use arf's IPC server. Extend its generic capabilities where necessary, particularly for structured R queries and event notifications, without introducing vscode-R-specific APIs.
- Make dependencies optional. Remove
processx,later, andjsonliterequirements from the arf-backed path, and makerstudioapiintegration optional. Existing uses outside the transport layer will also need attention. - Integrate incrementally. Start with ordinary arf terminals and subsequently consider R Interactive, reusing existing abstractions where appropriate.
Scope
This is a long-term architectural direction, not a proposal to replace sess entirely or remove support for other R frontends.
The goal is to reduce installation requirements without duplicating session functionality or compromising compatibility.
Related
- eitsupi/arf#112: Generic IPC server and earlier integration discussions
- #1739: Runtime and transport lifecycle separation
- #1829: Keeping sess a pure R package
- #1856: Managed sess installation
- 主要语言
- TypeScript
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bug
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维护者通常 1 天内回复
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