go-windows-subst

go-windows-subst is a Go wrapper for the Windows API used to implement functionality similar to subst.exe.

Example:

package main

import (
    "fmt"
    "os"

    "github.com/nyaosorg/go-windows-subst"
)

func mains(args []string) error {
    switch len(args) {
    case 1:
        target, err := subst.Query(args[0])
        if err != nil {
            return err
        }
        fmt.Printf("%s => %s\n", args[0], target)
        return nil
    case 2:
        if args[1] == "/D" {
            return subst.Remove(args[0])
        } else {
            return subst.Define(args[0], args[1])
        }
    default:
        return fmt.Errorf("Usage: %s DRIVE TARGET", os.Args[0])
    }
}

func main() {
    if err := mains(os.Args[1:]); err != nil {
        fmt.Fprintln(os.Stderr, err.Error())
        os.Exit(1)
    }
}