Colin's git trees - cmccabe-bin/blob - path-fixer.go

   1 package main
   2
   3 import (
   4         "fmt"
   5         "os"
   6         "strings"
   7 )
   8
   9 func main() {
  10         path := os.Getenv("PATH")
  11         entries := make(map[string]bool)
  12         var bld strings.Builder
  13         prefix := ""
  14         for {
  15                 index := strings.Index(path, ":")
  16                 var entry string
  17                 if index >= 0 {
  18                         entry = path[:index]
  19                 } else {
  20                         entry = path
  21                 }
  22                 if !entries[entry] {
  23                         entries[entry] = true
  24                         bld.WriteString(prefix)
  25                         prefix = ":"
  26                         bld.WriteString(entry)
  27                 }
  28                 if index < 0 {
  29                         break
  30                 } else {
  31                         path = path[index+1:]
  32                 }
  33         }
  34         fmt.Printf("%s", bld.String())
  35 }