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Debugging - golang/go

Debugging is an essential part of writing effective and efficient code in Go. Understanding how to use the Go debugger will help in identifying and fixing issues in the code. The Go debugger is called Delve and can be installed using the command go install github.com/go-delve/delve/cmd/dlv. Delve provides a simple, full-featured debugging tool for Go.

Delve offers remote debugging capabilities, which allows you to debug the application on a remote server from your local system using the VS Code editor and the Remote - SSH extension. To do this, you need to keep the debugger running on the remote server.

Delve also offers powerful features that let you debug your Go programs as quickly as possible. Some of the features unique to Go are local and remote debugging.

To set breakpoints in Delve, you can use the break command followed by the function name. For example, to set a breakpoint on the main function, you would use the command break main.main. You can then confirm the breakpoint was set correctly using the breakpoints command.

Delve also allows you to trace your Go programs using the dlv trace subcommand. The subcommand accepts a regular expression and will execute your program, setting a tracepoint on each function that matches the regular expression and displaying the results in real-time.

You can also use Delve to trace arbitrary functions in your program in order to see the inputs and outputs of those functions. This can be useful for gaining insight into the control flow of your program without the overhead of an interactive debugging session.

You can find more information about Delve and its features in the following sources:

These sources provide a detailed explanation of how to use Delve to debug Go programs, including information on remote debugging, setting breakpoints, and tracing functions.