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// Copyright 2017 Google Inc.
//
// 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 licenseclassifier
import (
"io/ioutil"
"os"
"path/filepath"
)
const (
// LicenseDirectory is the directory where the prototype licenses are kept.
LicenseDirectory = "src/github.com/google/licenseclassifier/licenses"
// LicenseArchive is the name of the archive containing preprocessed
// license texts.
LicenseArchive = "licenses.db"
// ForbiddenLicenseArchive is the name of the archive containing preprocessed
// forbidden license texts only.
ForbiddenLicenseArchive = "forbidden_licenses.db"
)
// ReadLicenseFile locates and reads the license file.
func ReadLicenseFile(filename string) ([]byte, error) {
for _, path := range filepath.SplitList(os.Getenv("GOPATH")) {
archive := filepath.Join(path, LicenseDirectory, filename)
if _, err := os.Stat(archive); err != nil {
if os.IsNotExist(err) {
continue
}
return nil, err
}
return ioutil.ReadFile(archive)
}
return nil, nil
}
// ReadLicenseDir reads directory containing the license files.
func ReadLicenseDir() ([]os.FileInfo, error) {
for _, path := range filepath.SplitList(os.Getenv("GOPATH")) {
dir := filepath.Join(path, LicenseDirectory)
filename := filepath.Join(dir, LicenseArchive)
if _, err := os.Stat(filename); err != nil {
if os.IsNotExist(err) {
continue
}
return nil, err
}
return ioutil.ReadDir(dir)
}
return nil, nil
}
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