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VSCode: Debugging Attached Process does not work (self.golang)

submitted 4 months ago by trymeout to c/[email protected]

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I made some Go scripts that require user input fmt.Scanln(&fileName) during the execution. When I use the Go debugger built into VSCode which is the launch type, it works but there is no way to enter any prompts when your exeuctable asks for a input. With other programming languages like NodeJS and PHP, there is way to run the scripts in "debugging mode" where it will run the code but before it executes the code, it will wait to attach to a debugger on your system and then execute the code. This has always allowed me to use the terminal for inputs in the executable.

For example to do this in NodeJS, you will use node --inspect-brk=0.0.0.0 main.js instead of node main.js and then run the debugger in VSCode to attach it to the executing script. Is there a way to do this with Go? Do I need to set something up to achieve this?

I am on Linux Mint and cannot find any commands to run go run . but to wait for a debugger to attach to the executable before executing.

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[–] [email protected] 2 points 4 months ago (3 children)

Attaching to and debugging a process most certainly does work. I did it yesterday. Your issue is that Go doesn’t have any way of telling the process to pause until a debugger attaches. Which is frustrating but not the same issue.

Specifically for debugging stdin, by far the easiest way to do that (in VSCode) is "console": "integratedTerminal". Another comment links a stack overflow answer that includes other options.

[–] trymeout 1 points 4 months ago (2 children)

This solution does with when using a launch request in the config. Thank you

Do you have a simple guide by chance on how to get debugging to work inside a docker container using VSCode?

[–] [email protected] 2 points 4 months ago (1 children)

The TL;DR is that you have to exec —privileged and execute dlv attach within the container then tell VSCode to connect. I’ll look up my notes tomorrow and post more details.

[–] trymeout 1 points 4 months ago

I’ll look up my notes tomorrow and post more details.

Thank you. Been struggling to get my IDE setup for go development.