无法在VSCode中使用断点调试Golang

Question

我在VS Code中使用断点对Golang应用程序进行调试。

调试器抱怨找不到已存在的文件。

你们中是否有人知道如何在VS Code中启用Golang应用程序的断点？

调试器日志：

Debuggee is not running. Setting breakpoints without halting.
All cleared
Creating on: /home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go:63
Creating on: /home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go:84
All cleared
All set:[]
SetBreakPointsResponse
2021-10-21T12:52:17+02:00 debug layer=rpc <- RPCServer.CreateBreakpoint(rpc2.CreateBreakpointIn{"Breakpoint":{"id":0,"name":"","addr":0,"addrs":null,"file":"/home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go","line":63,"Cond":"","HitCond":"","continue":false,"traceReturn":false,"goroutine":false,"stacktrace":0,"LoadArgs":{"FollowPointers":true,"MaxVariableRecurse":1,"MaxStringLen":64,"MaxArrayValues":64,"MaxStructFields":-1},"LoadLocals":{"FollowPointers":true,"MaxVariableRecurse":1,"MaxStringLen":64,"MaxArrayValues":64,"MaxStructFields":-1},"WatchExpr":"","WatchType":0,"hitCount":null,"totalHitCount":0,"disabled":false}})
2021-10-21T12:52:17+02:00 debug layer=rpc -> *rpc2.CreateBreakpointOut{"Breakpoint":{"id":0,"name":"","addr":0,"addrs":null,"file":"","line":0,"Cond":"","HitCond":"","continue":false,"traceReturn":false,"goroutine":false,"stacktrace":0,"LoadArgs":null,"LoadLocals":null,"WatchExpr":"","WatchType":0,"hitCount":null,"totalHitCount":0,"disabled":false}} error: "could not find file /home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go"
2021-10-21T12:52:17+02:00 debug layer=rpc <- RPCServer.CreateBreakpoint(rpc2.CreateBreakpointIn{"Breakpoint":{"id":0,"name":"","addr":0,"addrs":null,"file":"/home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go","line":84,"Cond":"","HitCond":"","continue":false,"traceReturn":false,"goroutine":false,"stacktrace":0,"LoadArgs":{"FollowPointers":true,"MaxVariableRecurse":1,"MaxStringLen":64,"MaxArrayValues":64,"MaxStructFields":-1},"LoadLocals":{"FollowPointers":true,"MaxVariableRecurse":1,"MaxStringLen":64,"MaxArrayValues":64,"MaxStructFields":-1},"WatchExpr":"","WatchType":0,"hitCount":null,"totalHitCount":0,"disabled":false}})
2021-10-21T12:52:17+02:00 debug layer=rpc -> *rpc2.CreateBreakpointOut{"Breakpoint":{"id":0,"name":"","addr":0,"addrs":null,"file":"","line":0,"Cond":"","HitCond":"","continue":false,"traceReturn":false,"goroutine":false,"stacktrace":0,"LoadArgs":null,"LoadLocals":null,"WatchExpr":"","WatchType":0,"hitCount":null,"totalHitCount":0,"disabled":false}} error: "could not find file /home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go"
2
Error on CreateBreakpoint: could not find file /home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go

文件已存在：

gbajson@misio:~$ ls -l /home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go
-rw-r--r-- 1 gbajson gbajson 2961 Oct 21 12:22 /home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go

我已经检查过文件权限不是问题。我还按照dlv的旧版程序的步骤进行了后续处理： https://github.com/golang/vscode-go/blob/master/docs/debugging-legacy.md#selecting-legacy-debug-adapter 调试器配置

• workspace.code-workspace

   "launch": {
   "version": "0.2.0",
   "configurations": [
       {
  
           "name": "Debug Go",
           "type": "go",
           "request": "launch",
           "mode": "auto",
           "program": "${fileDirname}",
           "debugAdapter": "legacy",
           "env": {},
           "args": [],
           "showLog": true,
           "logOutput": "rpc",
           "trace": "log"
       },
  

• settings.json

{
    "go.delveConfig": {
        "debugAdapter": "legacy",
    },

- gbajson

Answer 1

我想在这里分享我的解决方案。 在阅读了一些与vs-code-go相关的github问题后，似乎问题源于remotePath或substitutePath。经过几次尝试，将remotePath设置为""最终解决了这个问题。

    "version": "0.2.0",
    "configurations": [
        {
            "name": "Connect to server",
            "type": "go",
            "request": "attach",
            "mode": "remote",
            "remotePath": "",
            "port": 40000,
            "host": "<host>",
        }
    ]
}

- gtalarico

Answer 2

我找到了问题所在。VS Code无法很好地处理符号链接。当我在真实路径中设置一个项目时，调试器开始正常工作。

gbajson@misio:~$ realpath /home/gbajson/Sync/clickr/clickr-node-api/clickr-node-api.go
/storage/amoje/Sync/clickr/clickr-node-api/clickr-node-api.go

这个问题也在以下链接中有描述：https://github.com/golang/vscode-go/issues/1677

- gbajson

---

问题仍然存在，并且在调试测试时也会出现（这里也有同样的问题，代码位于符号链接下）。只需确保从其实际位置打开项目，一切都能正常工作。 - natenho

Answer 3

这是对gbajson回答的跟进。

对我来说，符号链接是问题所在。使用launch.json中的以下配置解决了该问题，并允许我保留符号链接：

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch",
            "type": "go",
            "request": "launch",
            "mode": "auto",
            "program": "${workspaceFolder}/cmd/server/main.go",
            "envFile": "${workspaceFolder}/.env",
            "substitutePath": [
                {
                    "from": "/home/me/go-workspaces",
                    "to": "/data/projects/workspaces"
                }
            ]
        }
    ]
}

具体来说，它是“substitutePath”部分。

我的工作区目录实际上是从“/ home / me / go-workspaces”符号链接到真实目录“/ data / projects / workspaces”。

参见：https://github.com/golang/vscode-go/blob/master/docs/debugging.md#debugging-symlink-directories

- caprica

Answer 4

你可以使用“sudo ps aux | fgrep {你的进程名称}”来检查你的进程。如果它启动了多个进程，也许你应该改变你的进程启动模式而不是守护进程。

- Baize