Is There a Way to Detect the GoLand Debugger in Go Programs?

Delve Debugger Detection in Go Programs

In some instances, it can be advantageous to determine whether a Go program is running under the GoLand debugger. In C#, the System.Diagnostics.Debugger.IsAttached property provides this functionality.

Is There an Equivalent in Go?

No, there is currently no built-in method in Go to detect the presence of the debugger like in C#.

Workaround Using Build Tags

However, a workaround is possible using build tags. By setting a build tag when the delve debugger is running, you can check for its presence in your code.

1. Create two files:

   • isdelve/delve.go (defines the tag when delve is running)
   • isdelve/nodelve.go (defines the tag when delve is not running)

2. In a.go, add:

   import (
       "isdelve"
       "fmt"
   )
   
   func main() {
       fmt.Println("delve", isdelve.Enabled)
   }

3. In GoLand, enable the build tag under 'Run/Debug Configurations' by adding -tags=delve in 'Go tool arguments:'.

4. Now, you can check if the delve debugger is running:

   • If go run a.go reports delve false, it's not running.
   • If dlv debug --build-flags='-tags=delve' a.go reports delve true, it is running.

Using delve's set Command

As an alternative, delve offers the set command to manually set a variable after starting the debugger.

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