64 lines
1.5 KiB
Go
64 lines
1.5 KiB
Go
/*
|
|
* Copyright 2017 gRPC 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 testdata
|
|
|
|
import (
|
|
"log"
|
|
"os"
|
|
"path/filepath"
|
|
)
|
|
|
|
// Path returns the absolute path the given relative file or directory path,
|
|
// relative to the google.golang.org/grpc/testdata directory in the user's GOPATH.
|
|
// If rel is already absolute, it is returned unmodified.
|
|
func Path(rel string) string {
|
|
if filepath.IsAbs(rel) {
|
|
return rel
|
|
}
|
|
|
|
v, err := goPackagePath("google.golang.org/grpc/testdata")
|
|
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
|
|
}
|