在 vscode 中远程调试 go 程序

有两种方法，不管是哪种方法，都需要远程服务器上的源码或编译出的程序和本地保持一致

1、Headless 方式

在服务端执行：

dlv debug ./cmd/app/main.go --headless --listen=:2345 --api-version=2 --accept-multiclient --continue

或

go build -gcflags "all=-N -l" -o app ./cmd/app
dlv exec ./app --headless --listen=:2345 --api-version=2 --accept-multiclient --continue

在 .vscode/launch.json 中配置：

{
    "name": "Connect to server",
    "type": "go",
    "debugAdapter": "legacy",
    "request": "attach",
    "mode": "remote",
    "port": 2345,
    "host": "192.168.1.233"
}

2、DAP 方式

在服务端执行：

go build -gcflags "all=-N -l" -o app ./cmd/app
dlv dap --listen=:12345

在客户端配置：

{
  "name": "Connect and launch",
  "type": "go",
  "debugAdapter": "legacy",
  "request": "launch",
  "port": 12345,
  "host": "127.0.0.1", // can skip for localhost
  "mode": "exec",
  "program": "/absolute/path/to/remote/workspace/program/app",
  "substitutePath": [
      { "from": "${workspaceFolder}", "to": "/path/to/remote/workspace" },
  ]
}

或：

{
  "name": "Connect and launch",
  "type": "go",
  "debugAdapter": "legacy",
  "request": "launch",
  "port": 2345,
  "host": "127.0.0.1", // can skip for localhost
  "mode": "debug",
  "program": "/absolute/path/to/remote/workspace/cmd/app",
  "substitutePath": [
      { "from": "${workspaceFolder}", "to": "/path/to/remote/workspace" },
  ]
}

更多：https://github.com/golang/vscode-go/blob/master/docs/debugging.md