Dependency updates

vendor/github.com/gobuffalo/gogen/files.go

@@ -0,0 +1,36 @@
+package gogen
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/pkg/errors"
+)
+
+func GoFiles(dir string) ([]string, error) {
+	var files []string
+
+	pwd, err := os.Getwd()
+	if err != nil {
+		return files, errors.WithStack(err)
+	}
+	if dir == "" {
+		dir = pwd
+	}
+
+	err = filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+		path = strings.TrimPrefix(path, pwd+"/")
+		if strings.Contains(path, ".git") || strings.Contains(path, "node_modules") || strings.Contains(path, "vendor"+string(os.PathSeparator)) {
+			if info.IsDir() {
+				return filepath.SkipDir
+			}
+			return nil
+		}
+		if filepath.Ext(path) == ".go" {
+			files = append(files, path)
+		}
+		return nil
+	})
+	return files, nil
+}