Follow symlinks (#519)

Fixes #518

utils/fsutil/fsutil.go

@@ -15,13 +15,9 @@ import (
 
 // CleanPath resolves common aliases in a path and cleans it as much as possible
 func CleanPath(path string) string {
-	if fi, err := os.Lstat(path); err == nil {
-		if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
-			resolvedPath, err := filepath.EvalSymlinks(path)
-			if err != nil {
-				path = resolvedPath
-			}
-		}
+	resolvedPath, err := filepath.EvalSymlinks(path)
+	if err == nil {
+		path = resolvedPath
 	}
 	// http://stackoverflow.com/questions/17609732/expand-tilde-to-home-directory
 	if len(path) > 1 && path[:2] == "~/" {
@@ -38,7 +34,7 @@ func CleanPath(path string) string {
 // IsDir checks if a certain path exists and is a directory
 // https://stackoverflow.com/questions/10510691/how-to-check-whether-a-file-or-directory-denoted-by-a-path-exists-in-golang
 func IsDir(path string) bool {
-	fi, err := os.Lstat(path)
+	fi, err := os.Stat(path)
 	if err != nil {
 		if os.IsNotExist(err) {
 			// not found
@@ -47,17 +43,13 @@ func IsDir(path string) bool {
 		fmt.Printf("failed to check dir %s: %s\n", path, err)
 		return false
 	}
-	if fi.Mode()&os.ModeSymlink != 0 {
-		fmt.Printf("dir %s is a symlink. ignoring", path)
-		return false
-	}
 
 	return fi.IsDir()
 }
 
 // IsFile checks if a certain path is actually a file
 func IsFile(path string) bool {
-	fi, err := os.Lstat(path)
+	fi, err := os.Stat(path)
 	if err != nil {
 		if os.IsNotExist(err) {
 			// not found
@@ -66,10 +58,6 @@ func IsFile(path string) bool {
 		fmt.Printf("failed to check dir %s: %s\n", path, err)
 		return false
 	}
-	if fi.Mode()&os.ModeSymlink != 0 {
-		fmt.Printf("dir %s is a symlink. ignoring", path)
-		return false
-	}
 
 	return fi.Mode().IsRegular()
 }