vendor files

vendor/k8s.io/kubernetes/pkg/util/removeall/BUILD

@@ -0,0 +1,38 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+    "go_test",
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["removeall_test.go"],
+    importpath = "k8s.io/kubernetes/pkg/util/removeall",
+    library = ":go_default_library",
+    deps = [
+        "//pkg/util/mount:go_default_library",
+        "//vendor/k8s.io/client-go/util/testing:go_default_library",
+    ],
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = ["removeall.go"],
+    importpath = "k8s.io/kubernetes/pkg/util/removeall",
+    deps = ["//pkg/util/mount:go_default_library"],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/util/removeall/removeall.go

@@ -0,0 +1,108 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package removeall
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"syscall"
+
+	"k8s.io/kubernetes/pkg/util/mount"
+)
+
+// RemoveAllOneFilesystem removes path and any children it contains.
+// It removes everything it can but returns the first error
+// it encounters. If the path does not exist, RemoveAll
+// returns nil (no error).
+// It makes sure it does not cross mount boundary, i.e. it does *not* remove
+// files from another filesystems. Like 'rm -rf --one-file-system'.
+// It is copied from RemoveAll() sources, with IsLikelyNotMountPoint
+func RemoveAllOneFilesystem(mounter mount.Interface, path string) error {
+	// Simple case: if Remove works, we're done.
+	err := os.Remove(path)
+	if err == nil || os.IsNotExist(err) {
+		return nil
+	}
+
+	// Otherwise, is this a directory we need to recurse into?
+	dir, serr := os.Lstat(path)
+	if serr != nil {
+		if serr, ok := serr.(*os.PathError); ok && (os.IsNotExist(serr.Err) || serr.Err == syscall.ENOTDIR) {
+			return nil
+		}
+		return serr
+	}
+	if !dir.IsDir() {
+		// Not a directory; return the error from Remove.
+		return err
+	}
+
+	// Directory.
+	isNotMount, err := mounter.IsLikelyNotMountPoint(path)
+	if err != nil {
+		return err
+	}
+	if !isNotMount {
+		return fmt.Errorf("cannot delete directory %s: it is a mount point", path)
+	}
+
+	fd, err := os.Open(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			// Race. It was deleted between the Lstat and Open.
+			// Return nil per RemoveAll's docs.
+			return nil
+		}
+		return err
+	}
+
+	// Remove contents & return first error.
+	err = nil
+	for {
+		names, err1 := fd.Readdirnames(100)
+		for _, name := range names {
+			err1 := RemoveAllOneFilesystem(mounter, path+string(os.PathSeparator)+name)
+			if err == nil {
+				err = err1
+			}
+		}
+		if err1 == io.EOF {
+			break
+		}
+		// If Readdirnames returned an error, use it.
+		if err == nil {
+			err = err1
+		}
+		if len(names) == 0 {
+			break
+		}
+	}
+
+	// Close directory, because windows won't remove opened directory.
+	fd.Close()
+
+	// Remove directory.
+	err1 := os.Remove(path)
+	if err1 == nil || os.IsNotExist(err1) {
+		return nil
+	}
+	if err == nil {
+		err = err1
+	}
+	return err
+}

vendor/k8s.io/kubernetes/pkg/util/removeall/removeall_test.go

@@ -0,0 +1,191 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package removeall
+
+import (
+	"errors"
+	"os"
+	"path"
+	"strings"
+	"testing"
+
+	utiltesting "k8s.io/client-go/util/testing"
+	"k8s.io/kubernetes/pkg/util/mount"
+)
+
+type fakeMounter struct{}
+
+var _ mount.Interface = &fakeMounter{}
+
+func (mounter *fakeMounter) Mount(source string, target string, fstype string, options []string) error {
+	return errors.New("not implemented")
+}
+
+func (mounter *fakeMounter) Unmount(target string) error {
+	return errors.New("not implemented")
+}
+
+func (mounter *fakeMounter) List() ([]mount.MountPoint, error) {
+	return nil, errors.New("not implemented")
+}
+
+func (mounter fakeMounter) DeviceOpened(pathname string) (bool, error) {
+	return false, errors.New("not implemented")
+}
+
+func (mounter *fakeMounter) PathIsDevice(pathname string) (bool, error) {
+	return false, errors.New("not implemented")
+}
+
+func (mounter *fakeMounter) GetDeviceNameFromMount(mountPath, pluginDir string) (string, error) {
+	return "", errors.New("not implemented")
+}
+
+func (mounter *fakeMounter) IsMountPointMatch(mp mount.MountPoint, dir string) bool {
+	return mp.Path == dir
+}
+
+func (mounter *fakeMounter) IsNotMountPoint(dir string) (bool, error) {
+	return mount.IsNotMountPoint(mounter, dir)
+}
+
+func (mounter *fakeMounter) GetFileType(pathname string) (mount.FileType, error) {
+	return mount.FileType("fake"), errors.New("not implemented")
+}
+
+func (mounter *fakeMounter) MakeDir(pathname string) error {
+	return nil
+}
+
+func (mounter *fakeMounter) MakeFile(pathname string) error {
+	return nil
+}
+
+func (mounter *fakeMounter) ExistsPath(pathname string) bool {
+	return true
+}
+
+func (mounter *fakeMounter) IsLikelyNotMountPoint(file string) (bool, error) {
+	name := path.Base(file)
+	if strings.HasPrefix(name, "mount") {
+		return false, nil
+	}
+	if strings.HasPrefix(name, "err") {
+		return false, errors.New("mock error")
+	}
+	return true, nil
+}
+
+func (mounter *fakeMounter) MakeRShared(path string) error {
+	return nil
+}
+
+func TestRemoveAllOneFilesystem(t *testing.T) {
+	tests := []struct {
+		name string
+		// Items of the test directory. Directories end with "/".
+		// Directories starting with "mount" are considered to be mount points.
+		// Directories starting with "err" will cause an error in
+		// IsLikelyNotMountPoint.
+		items       []string
+		expectError bool
+	}{
+		{
+			"empty dir",
+			[]string{},
+			false,
+		},
+		{
+			"non-mount",
+			[]string{
+				"dir/",
+				"dir/file",
+				"dir2/",
+				"file2",
+			},
+			false,
+		},
+		{
+			"mount",
+			[]string{
+				"dir/",
+				"dir/file",
+				"dir2/",
+				"file2",
+				"mount/",
+				"mount/file3",
+			},
+			true,
+		},
+		{
+			"innermount",
+			[]string{
+				"dir/",
+				"dir/file",
+				"dir/dir2/",
+				"dir/dir2/file2",
+				"dir/dir2/mount/",
+				"dir/dir2/mount/file3",
+			},
+			true,
+		},
+		{
+			"error",
+			[]string{
+				"dir/",
+				"dir/file",
+				"dir2/",
+				"file2",
+				"err/",
+				"err/file3",
+			},
+			true,
+		},
+	}
+
+	for _, test := range tests {
+		tmpDir, err := utiltesting.MkTmpdir("removeall-" + test.name + "-")
+		if err != nil {
+			t.Fatalf("Can't make a tmp dir: %v", err)
+		}
+		defer os.RemoveAll(tmpDir)
+		// Create the directory structure
+		for _, item := range test.items {
+			if strings.HasSuffix(item, "/") {
+				item = strings.TrimRight(item, "/")
+				if err = os.Mkdir(path.Join(tmpDir, item), 0777); err != nil {
+					t.Fatalf("error creating %s: %v", item, err)
+				}
+			} else {
+				f, err := os.Create(path.Join(tmpDir, item))
+				if err != nil {
+					t.Fatalf("error creating %s: %v", item, err)
+				}
+				f.Close()
+			}
+		}
+
+		mounter := &fakeMounter{}
+		err = RemoveAllOneFilesystem(mounter, tmpDir)
+		if err == nil && test.expectError {
+			t.Errorf("test %q failed: expected error and got none", test.name)
+		}
+		if err != nil && !test.expectError {
+			t.Errorf("test %q failed: unexpected error: %v", test.name, err)
+		}
+	}
+}