Go Debugging

01 Dec 2023 - Daniel Ramirez

Description of options for debugging standalone go program (not a web server).

VSCode In-IDE Debugger

def foo
    puts 'foo'
end

1. have launch.json

   {
    "name": "Launch Package",
    "type": "go",
    "request": "launch",
    "mode": "auto",
    "program": "${fileDirname}",
    "console": "integratedTerminal",
    "showGlobalVariables": true
   },
   

2. hit Launch
3. Interact with program inside of xterm.js

Other considerations

bubbletea

1. Insert logToFile somewhere near entry point to program

   if len(os.Getenv("DEBUG")) > 0 {
    f, err := tea.LogToFile("debug.log", "debug")
    if err != nil {
        fmt.Println("fatal:", err)
        os.Exit(1)
    }
   
    defer f.Close()
   }
   

2. Add logging wrapped in DEBUG checks

   if len(os.Getenv("DEBUG")) > 0 {
    log.Println(foo)
   }