vendor buildozer

vendor/github.com/bazelbuild/buildtools/wspace/BUILD

@@ -0,0 +1,24 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["workspace.go"],
+    importmap = "k8s.io/kubernetes/vendor/github.com/bazelbuild/buildtools/wspace",
+    importpath = "github.com/bazelbuild/buildtools/wspace",
+    visibility = ["//visibility:public"],
+    deps = ["//vendor/github.com/bazelbuild/buildtools/build:go_default_library"],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

vendor/github.com/bazelbuild/buildtools/wspace/workspace.go

@@ -0,0 +1,114 @@
+/*
+Copyright 2016 Google Inc. All Rights Reserved.
+
+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 wspace provides a method to find the root of the bazel tree.
+package wspace
+
+import (
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/bazelbuild/buildtools/build"
+)
+
+const workspaceFile = "WORKSPACE"
+
+func alwaysTrue(fi os.FileInfo) bool {
+	return true
+}
+
+var repoRootFiles = map[string]func(os.FileInfo) bool{
+	workspaceFile: alwaysTrue,
+	".buckconfig": alwaysTrue,
+	"pants": func(fi os.FileInfo) bool {
+		return fi.Mode()&os.ModeType == 0 && fi.Mode()&0100 == 0100
+	},
+}
+
+// findContextPath finds the context path inside of a WORKSPACE-rooted source tree.
+func findContextPath(rootDir string) (string, error) {
+	if rootDir == "" {
+		return os.Getwd()
+	}
+	return rootDir, nil
+}
+
+// FindWorkspaceRoot splits the current code context (the rootDir if present,
+// the working directory if not.) It returns the path of the directory
+// containing the WORKSPACE file, and the rest.
+func FindWorkspaceRoot(rootDir string) (root string, rest string) {
+	wd, err := findContextPath(rootDir)
+	if err != nil {
+		return "", ""
+	}
+	if root, err = Find(wd); err != nil {
+		return "", ""
+	}
+	if len(wd) == len(root) {
+		return root, ""
+	}
+	return root, wd[len(root)+1:]
+}
+
+// Find searches from the given dir and up for the WORKSPACE file
+// returning the directory containing it, or an error if none found in the tree.
+func Find(dir string) (string, error) {
+	if dir == "" || dir == "/" || dir == "." {
+		return "", os.ErrNotExist
+	}
+	for repoRootFile, fiFunc := range repoRootFiles {
+		if fi, err := os.Stat(filepath.Join(dir, repoRootFile)); err == nil && fiFunc(fi) {
+			return dir, nil
+		} else if !os.IsNotExist(err) {
+			return "", err
+		}
+	}
+	return Find(filepath.Dir(dir))
+}
+
+// FindRepoBuildFiles parses the WORKSPACE to find BUILD files for non-Bazel
+// external repositories, specifically those defined by one of these rules:
+//   new_local_repository(), new_git_repository(), new_http_archive()
+func FindRepoBuildFiles(root string) (map[string]string, error) {
+	ws := filepath.Join(root, workspaceFile)
+	kinds := []string{
+		"new_local_repository",
+		"new_git_repository",
+		"new_http_archive",
+	}
+	data, err := ioutil.ReadFile(ws)
+	if err != nil {
+		return nil, err
+	}
+	ast, err := build.Parse(ws, data)
+	if err != nil {
+		return nil, err
+	}
+	files := make(map[string]string)
+	for _, kind := range kinds {
+		for _, r := range ast.Rules(kind) {
+			buildFile := r.AttrString("build_file")
+			if buildFile == "" {
+				continue
+			}
+			buildFile = strings.Replace(buildFile, ":", "/", -1)
+			files[r.Name()] = filepath.Join(root, buildFile)
+		}
+	}
+	return files, nil
+}