golang/go

x/tools/gopls: when editing Go files in GOMODCACHE, offer to clone module and add replace directive

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#77,212 创建于 2026年1月16日

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 (8 评论) (2 反应) (0 负责人)Go (133,883 star) (19,008 fork)batch import
FeatureRequestToolsgoplshelp wanted

描述

Being able to quickly edit the standard library (e.g. by inserting a print statement) is extremely useful during debugging. However, editing source files from dependencies within the module cache is not as convenient. Gopls could detect an attempt to modify such a file and offer to clone the module, add a replace directive to the main module, and move the cursor to the corresponding position in the cloned file, which can then be freely edited. The replace directive could be flagged with a // FIXME: debugging comment, with a code action to revert it.

(Credit to @prattmic for the idea.)

贡献者指南

技术栈
go
领域
developer experiencetooling
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
4
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
3-5 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
active
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Go programming languageGo modulesgopls internals
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
20
研究方向
Start by understanding how gopls handles file saves and detects modifications. Look at the gopls module cache handling in internal/lsp/cache/ and the go.mod parser for replace directives. The issue suggests offering a code action when editing a file in GOMODCACHE; investigate existing code actions in internal/lsp/command/ and how they modify go.mod. Also review how gopls currently handles the workspace folder and module graph to clone the module and add the replace directive.
x/tools/gopls: when editing Go files in GOMODCACHE, offer to clone module and add replace directive · golang/go#77212 | Good First Issue