adding func to get PATH var

paths/paths.go

@@ -6,10 +6,10 @@ import (
 	"os"
 	"os/user"
 	"path/filepath"
+	"strings"
 )
 
-// Strings are, apparently, cast as pointers. A lot of the ptr ref/deref below is redundant.
+var err error
-// Regardless, future-prooofing.
 
 func ExpandHome(path *string) error {
 	// Props to this guy.
@@ -27,6 +27,17 @@ func ExpandHome(path *string) error {
 	return nil
 }
 
+func GetPathEnv() ([]string, error) {
+	paths := []string{}
+	for _, p := range strings.Split(os.Getenv("PATH"), ":") {
+		if err = RealPath(&p); err != nil {
+			return nil, err
+		}
+		paths = append(paths, p)
+	}
+	return paths, nil
+}
+
 func MakeDirIfNotExist(path *string) error {
 	exists, stat, err := RealPathExistsStat(path)
 	if err != nil {