How to get the directory of the currently running file

Question

In nodejs I use __dirname . What is the equivalent of this in Golang?

_, filename, _, _ := runtime.Caller(1)
f, err := os.Open(path.Join(path.Dir(filename), "data.csv"))

But is it the right way or idiomatic way to do in Golang?

Answer 1

Hello @kartik,

This should do it:

import (
    "fmt"
    "log"
    "os"
    "path/filepath"
)

func main() {
    dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
    if err != nil {
            log.Fatal(err)
    }
    fmt.Println(dir)
}