Evaluate the root path only once

Signed-off-by: egibs <20933572+egibs@users.noreply.github.com>

Author: egibs

pkg/compile/compile.go

@@ -205,6 +205,18 @@ func Recursive(ctx context.Context, fss []fs.FS) (*yarax.Rules, error) {
 		return nil, fmt.Errorf("yarax compiler: %w", err)
 	}
 
+	// use the current working directory to determine the root path
+	// this only needs to be done once
+	cwd, err := os.Getwd()
+	if err != nil {
+		return nil, nil
+	}
+	abs, err := filepath.Abs(cwd)
+	if err != nil {
+		return nil, err
+	}
+	rootPath := findRoot(abs)
+
 	rulesToRemove := getRulesToRemove()
 
 	for _, root := range fss {
@@ -223,14 +235,9 @@ func Recursive(ctx context.Context, fss []fs.FS) (*yarax.Rules, error) {
 					return fmt.Errorf("readfile: %w", err)
 				}
 
-				abs, err := filepath.Abs(path)
-				if err != nil {
-					return err
-				}
-				root := findRoot(abs)
-				globalAbs := filepath.Join(root, globalPath)
-
 				bs = removeRules(bs, rulesToRemove)
+
+				globalAbs := filepath.Join(rootPath, globalPath)
 				bs = replaceGlobal(bs, globalAbs)
 
 				yxc.NewNamespace(path)