blob: 0d636713ff25576aa8e8650c27f43bc0c1b828c9 [file] [log] [blame]
// Copyright 2021 The LUCI 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 main
import (
"encoding/json"
"os"
"os/exec"
"path/filepath"
"go.chromium.org/luci/common/errors"
)
// goList calls "go list -json <args>" and parses the result.
func goList(args []string, out any) error {
cmd := exec.Command("go", append([]string{"list", "-json"}, args...)...)
buf, err := cmd.Output()
if err != nil {
if er, ok := err.(*exec.ExitError); ok && len(er.Stderr) > 0 {
return errors.Reason("%s", er.Stderr).Err()
}
return err
}
return json.Unmarshal(buf, out)
}
// isInPackage returns true if the filename is a part of the package.
func isInPackage(fileName string, pkg string) (bool, error) {
var pkgInfo struct {
Dir string
}
if err := goList([]string{"-find", pkg}, &pkgInfo); err != nil {
return false, err
}
expectedDir, err := os.Stat(pkgInfo.Dir)
if err != nil {
return false, err
}
actualDir, err := os.Stat(filepath.Dir(fileName))
if err != nil {
return false, err
}
return os.SameFile(expectedDir, actualDir), nil
}