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| package main | |
| import ( | |
| "path/filepath" | |
| "runtime" | |
| "strings" | |
| ) | |
| // driveLetterToUpper converts Windows path's drive letters to uppercase. This | |
| // is needed when comparing 2 paths with different drive letter case. | |
| func driveLetterToUpper(path string) string { | |
| if runtime.GOOS != "windows" || path == "" { | |
| return path | |
| } | |
| p := path | |
| // If path's drive letter is lowercase, change it to uppercase. | |
| if len(p) >= 2 && p[1] == ':' && 'a' <= p[0] && p[0] <= 'z' { | |
| p = string(p[0]+'A'-'a') + p[1:] | |
| } | |
| return p | |
| } | |
| // clean the path and ensure that a drive letter is upper case (if it exists). | |
| func cleanPath(path string) string { | |
| return driveLetterToUpper(filepath.Clean(path)) | |
| } | |
| // deal with case insensitive filesystems and other weirdness | |
| func pathEqual(a, b string) bool { | |
| a = cleanPath(a) | |
| b = cleanPath(b) | |
| return strings.EqualFold(a, b) | |
| } |