update vendor

Signed-off-by: Roland.Ma <rolandma@yunify.com>

vendor/sigs.k8s.io/kustomize/kyaml/kio/ignorefilesmatcher.go

@@ -0,0 +1,100 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package kio
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/monochromegane/go-gitignore"
+	"sigs.k8s.io/kustomize/kyaml/ext"
+)
+
+// ignoreFilesMatcher handles `.krmignore` files, which allows for ignoring
+// files or folders in a package. The format of this file is a subset of the
+// gitignore format, with recursive patterns (like a/**/c) not supported. If a
+// file or folder matches any of the patterns in the .krmignore file for the
+// package, it will be excluded.
+//
+// It works as follows:
+//
+// * It will look for .krmignore file in the top folder and on the top level
+//   of any subpackages. Subpackages are defined by the presence of a Krmfile
+//   in the folder.
+// * `.krmignore` files only cover files and folders for the package in which
+//   it is defined. So ignore patterns defined in a parent package does not
+//   affect which files are ignored from a subpackage.
+// * An ignore pattern can not ignore a subpackage. So even if the parent
+//   package contains a pattern that ignores the directory foo, if foo is a
+//   subpackage, it will still be included if the IncludeSubpackages property
+//   is set to true
+type ignoreFilesMatcher struct {
+	matchers []matcher
+}
+
+// readIgnoreFile checks whether there is a .krmignore file in the path, and
+// if it is, reads it in and turns it into a matcher. If we can't find a file,
+// we just add a matcher that match nothing.
+func (i *ignoreFilesMatcher) readIgnoreFile(path string) error {
+	i.verifyPath(path)
+	m, err := gitignore.NewGitIgnore(filepath.Join(path, ext.IgnoreFileName()))
+	if err != nil {
+		if os.IsNotExist(err) {
+			i.matchers = append(i.matchers, matcher{
+				matcher:  gitignore.DummyIgnoreMatcher(false),
+				basePath: path,
+			})
+			return nil
+		}
+		return err
+	}
+	i.matchers = append(i.matchers, matcher{
+		matcher:  m,
+		basePath: path,
+	})
+	return nil
+}
+
+// verifyPath checks whether the top matcher on the stack
+// is correct for the provided filepath. Matchers are removed once
+// we encounter a filepath that is not a subpath of the basepath for
+// the matcher.
+func (i *ignoreFilesMatcher) verifyPath(path string) {
+	for j := len(i.matchers) - 1; j >= 0; j-- {
+		matcher := i.matchers[j]
+		if strings.HasPrefix(path, matcher.basePath) || path == matcher.basePath {
+			i.matchers = i.matchers[:j+1]
+			return
+		}
+	}
+}
+
+// matchFile checks whether the file given by the provided path matches
+// any of the patterns in the .krmignore file for the package.
+func (i *ignoreFilesMatcher) matchFile(path string) bool {
+	if len(i.matchers) == 0 {
+		return false
+	}
+	i.verifyPath(filepath.Dir(path))
+	return i.matchers[len(i.matchers)-1].matcher.Match(path, false)
+}
+
+// matchFile checks whether the directory given by the provided path matches
+// any of the patterns in the .krmignore file for the package.
+func (i *ignoreFilesMatcher) matchDir(path string) bool {
+	if len(i.matchers) == 0 {
+		return false
+	}
+	i.verifyPath(path)
+	return i.matchers[len(i.matchers)-1].matcher.Match(path, true)
+}
+
+// matcher wraps the gitignore matcher and the path to the folder
+// where the file was found.
+type matcher struct {
+	matcher gitignore.IgnoreMatcher
+
+	basePath string
+}