vendor: revendor for gRPC

vendor/google.golang.org/grpc/benchmark/worker/util.go

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+package main
+
+import (
+	"log"
+	"os"
+	"path/filepath"
+)
+
+// abs returns the absolute path the given relative file or directory path,
+// relative to the google.golang.org/grpc directory in the user's GOPATH.
+// If rel is already absolute, it is returned unmodified.
+func abs(rel string) string {
+	if filepath.IsAbs(rel) {
+		return rel
+	}
+	v, err := goPackagePath("google.golang.org/grpc")
+	if err != nil {
+		log.Fatalf("Error finding google.golang.org/grpc/testdata directory: %v", err)
+	}
+	return filepath.Join(v, rel)
+}
+
+func goPackagePath(pkg string) (path string, err error) {
+	gp := os.Getenv("GOPATH")
+	if gp == "" {
+		return path, os.ErrNotExist
+	}
+	for _, p := range filepath.SplitList(gp) {
+		dir := filepath.Join(p, "src", filepath.FromSlash(pkg))
+		fi, err := os.Stat(dir)
+		if os.IsNotExist(err) {
+			continue
+		}
+		if err != nil {
+			return "", err
+		}
+		if !fi.IsDir() {
+			continue
+		}
+		return dir, nil
+	}
+	return path, os.ErrNotExist
+}