1// Copyright 2020 Google Inc. All rights reserved. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package android 16 17import ( 18 "github.com/google/blueprint" 19) 20 21type licenseKindDependencyTag struct { 22 blueprint.BaseDependencyTag 23} 24 25var ( 26 licenseKindTag = licenseKindDependencyTag{} 27) 28 29func init() { 30 RegisterLicenseBuildComponents(InitRegistrationContext) 31} 32 33// Register the license module type. 34func RegisterLicenseBuildComponents(ctx RegistrationContext) { 35 ctx.RegisterModuleType("license", LicenseFactory) 36} 37 38type licenseProperties struct { 39 // Specifies the kinds of license that apply. 40 License_kinds []string 41 // Specifies a short copyright notice to use for the license. 42 Copyright_notice *string 43 // Specifies the path or label for the text of the license. 44 License_text []string `android:"path"` 45 // Specifies the package name to which the license applies. 46 Package_name *string 47 // Specifies where this license can be used 48 Visibility []string 49} 50 51type licenseModule struct { 52 ModuleBase 53 DefaultableModuleBase 54 55 properties licenseProperties 56} 57 58func (m *licenseModule) DepsMutator(ctx BottomUpMutatorContext) { 59 for i, license := range m.properties.License_kinds { 60 for j := i + 1; j < len(m.properties.License_kinds); j++ { 61 if license == m.properties.License_kinds[j] { 62 ctx.ModuleErrorf("Duplicated license kind: %q", license) 63 break 64 } 65 } 66 } 67 ctx.AddVariationDependencies(nil, licenseKindTag, m.properties.License_kinds...) 68} 69 70func (m *licenseModule) GenerateAndroidBuildActions(ctx ModuleContext) { 71 // license modules have no licenses, but license_kinds must refer to license_kind modules 72 mergeStringProps(&m.base().commonProperties.Effective_licenses, ctx.ModuleName()) 73 namePathProps(&m.base().commonProperties.Effective_license_text, m.properties.Package_name, PathsForModuleSrc(ctx, m.properties.License_text)...) 74 for _, module := range ctx.GetDirectDepsWithTag(licenseKindTag) { 75 if lk, ok := module.(*licenseKindModule); ok { 76 mergeStringProps(&m.base().commonProperties.Effective_license_conditions, lk.properties.Conditions...) 77 mergeStringProps(&m.base().commonProperties.Effective_license_kinds, ctx.OtherModuleName(module)) 78 } else { 79 ctx.ModuleErrorf("license_kinds property %q is not a license_kind module", ctx.OtherModuleName(module)) 80 } 81 } 82} 83 84func LicenseFactory() Module { 85 module := &licenseModule{} 86 87 base := module.base() 88 module.AddProperties(&base.nameProperties, &module.properties) 89 90 // The visibility property needs to be checked and parsed by the visibility module. 91 setPrimaryVisibilityProperty(module, "visibility", &module.properties.Visibility) 92 93 initAndroidModuleBase(module) 94 InitDefaultableModule(module) 95 96 return module 97} 98