forked from mystiq/dex
75 lines
2.5 KiB
Go
75 lines
2.5 KiB
Go
/*
|
|
* 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
|
|
}
|