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// Copyright 2021 Google Inc. All rights reserved.
//
// 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 android
import (
"path/filepath"
"github.com/google/blueprint"
)
// Contains support for adding license modules to an sdk.
func init() {
RegisterSdkMemberType(LicenseModuleSdkMemberType)
}
// licenseSdkMemberType determines how a license module is added to the sdk.
type licenseSdkMemberType struct {
SdkMemberTypeBase
}
func (l *licenseSdkMemberType) AddDependencies(mctx BottomUpMutatorContext, dependencyTag blueprint.DependencyTag, names []string) {
// Add dependencies onto the license module from the sdk module.
mctx.AddDependency(mctx.Module(), dependencyTag, names...)
}
func (l *licenseSdkMemberType) IsInstance(module Module) bool {
// Verify that the module being added is compatible with this module type.
_, ok := module.(*licenseModule)
return ok
}
func (l *licenseSdkMemberType) AddPrebuiltModule(ctx SdkMemberContext, member SdkMember) BpModule {
// Add the basics of a prebuilt module.
return ctx.SnapshotBuilder().AddPrebuiltModule(member, "license")
}
func (l *licenseSdkMemberType) CreateVariantPropertiesStruct() SdkMemberProperties {
// Create the structure into which the properties of the license module that need to be output to
// the snapshot will be placed. The structure may be populated with information from a variant or
// may be used as the destination for properties that are common to a set of variants.
return &licenseSdkMemberProperties{}
}
// LicenseModuleSdkMemberType is the instance of licenseSdkMemberType
var LicenseModuleSdkMemberType = &licenseSdkMemberType{
SdkMemberTypeBase{
PropertyName: "licenses",
// This should never be added directly to an sdk/module_exports, all license modules should be
// added indirectly as transitive dependencies of other sdk members.
BpPropertyNotRequired: true,
SupportsSdk: true,
// The snapshot of the license module is just another license module (not a prebuilt). They are
// internal modules only so will have an sdk specific name that will not clash with the
// originating source module.
UseSourceModuleTypeInSnapshot: true,
},
}
var _ SdkMemberType = (*licenseSdkMemberType)(nil)
// licenseSdkMemberProperties is the set of properties that need to be added to the license module
// in the snapshot.
type licenseSdkMemberProperties struct {
SdkMemberPropertiesBase
// The kinds of licenses provided by the module.
License_kinds []string
// The source paths to the files containing license text.
License_text Paths
}
func (p *licenseSdkMemberProperties) PopulateFromVariant(_ SdkMemberContext, variant Module) {
// Populate the properties from the variant.
l := variant.(*licenseModule)
p.License_kinds = l.properties.License_kinds
p.License_text = l.base().commonProperties.Effective_license_text
}
func (p *licenseSdkMemberProperties) AddToPropertySet(ctx SdkMemberContext, propertySet BpPropertySet) {
// Just pass any specified license_kinds straight through.
if len(p.License_kinds) > 0 {
propertySet.AddProperty("license_kinds", p.License_kinds)
}
// Copy any license test files to the snapshot into a module specific location.
if len(p.License_text) > 0 {
dests := []string{}
for _, path := range p.License_text {
// The destination path only uses the path of the license file in the source not the license
// module name. That ensures that if the same license file is used by multiple license modules
// that it only gets copied once as the snapshot builder will dedup copies where the source
// and destination match.
dest := filepath.Join("licenses", path.String())
dests = append(dests, dest)
ctx.SnapshotBuilder().CopyToSnapshot(path, dest)
}
propertySet.AddProperty("license_text", dests)
}
}
var _ SdkMemberProperties = (*licenseSdkMemberProperties)(nil)