code review 126440043: path/filepath: make Abs handle paths like c:a.txt properly

src/pkg/path/filepath/path.go

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 // Package filepath implements utility routines for manipulating filename paths
 // in a way compatible with the target operating system-defined file paths.
 package filepath
 
 import (
         "errors"
@@ skipping 213 matching lines @@
 // unless one of the components is an absolute symbolic link.
 func EvalSymlinks(path string) (string, error) {
         return evalSymlinks(path)
 }
 
 // Abs returns an absolute representation of path.
 // If the path is not absolute it will be joined with the current
 // working directory to turn it into an absolute path.  The absolute
 // path name for a given file is not guaranteed to be unique.
 func Abs(path string) (string, error) {
+        return abs(path)
+}
+
+func unixAbs(path string) (string, error) {
         if IsAbs(path) {
                 return Clean(path), nil
         }
         wd, err := os.Getwd()
         if err != nil {
                 return "", err
         }
         return Join(wd, path), nil
 }
 
@@ skipping 214 matching lines @@
         return vol + dir
 }
 
 // VolumeName returns leading volume name.
 // Given "C:\foo\bar" it returns "C:" under windows.
 // Given "\\host\share\foo" it returns "\\host\share".
 // On other platforms it returns "".
 func VolumeName(path string) (v string) {
         return path[:volumeNameLen(path)]
 }