tusd/vendor/google.golang.org/grpc/testdata/testdata.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
}