| // |
| // Licensed to Apache Software Foundation (ASF) under one or more contributor |
| // license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright |
| // ownership. Apache Software Foundation (ASF) licenses this file to you 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 license |
| |
| import ( |
| "fmt" |
| "path/filepath" |
| "regexp" |
| "strings" |
| |
| "github.com/apache/skywalking-eyes/license-eye/assets" |
| "github.com/apache/skywalking-eyes/license-eye/internal/logger" |
| ) |
| |
| var templatesDirs = []string{ |
| "lcs-templates", |
| // Some projects simply use the header text as their LICENSE content... |
| "header-templates", |
| } |
| |
| var dualLicensePatterns = []*regexp.Regexp{ |
| regexp.MustCompile(`(?i)This project is covered by two different licenses: (?P<license>[^.]+)`), |
| } |
| |
| var normalizedTemplates = make(map[string]string) |
| |
| func init() { |
| for _, dir := range templatesDirs { |
| files, err := assets.AssetDir(dir) |
| if err != nil { |
| logger.Log.Fatalln("Failed to read license template directory:", dir, err) |
| } |
| for _, template := range files { |
| name := template.Name() |
| t, err := assets.Asset(filepath.Join(dir, name)) |
| if err != nil { |
| logger.Log.Fatalln("Failed to read license template:", dir, err) |
| } |
| normalizedTemplates[dir+"/"+name] = Normalize(string(t)) |
| } |
| } |
| } |
| |
| // Identify identifies the Spdx ID of the given license content |
| func Identify(pkgPath, content string) (string, error) { |
| for _, pattern := range dualLicensePatterns { |
| matches := pattern.FindStringSubmatch(content) |
| for i, name := range pattern.SubexpNames() { |
| if name == "license" && len(matches) >= i { |
| return matches[i], nil |
| } |
| } |
| } |
| |
| content = Normalize(content) |
| |
| for name, license := range normalizedTemplates { |
| if strings.Contains(content, license) { |
| name = filepath.Base(name) |
| return strings.TrimSuffix(name, filepath.Ext(name)), nil |
| } |
| } |
| |
| logger.Log.Debugf("Normalized content for %+v:\n%+v\n", pkgPath, content) |
| |
| return "", fmt.Errorf("cannot identify license content") |
| } |