This command should block until a selected command finishes.
Required for #3114
贡献者指南
技术栈
go
领域
clibackend
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。
3
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。
half day
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。
stale
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
GoIPFS command line interface
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。
60
研究方向
The issue asks to implement a command that blocks until a selected command finishes. Start by examining existing diagnostic commands in the repository, particularly the `ipfs diag cmds` command (source likely in `commands/diag.go` or similar). Review the referenced issue #3114 for context on why this is needed. Check if there are any existing implementations or discussions in the comments. The implementation should follow the pattern of other IPFS commands, using the command framework provided by go ipfs. Pay attention to how commands are registered and how to wait for command completion.
