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// Copyright 2020 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 (
"strings"
"sync"
"github.com/google/blueprint"
)
var phonyMapOnceKey = NewOnceKey("phony")
type phonyMap map[string]Paths
var phonyMapLock sync.Mutex
type ModulePhonyInfo struct {
Phonies map[string]Paths
}
var ModulePhonyProvider = blueprint.NewProvider[ModulePhonyInfo]()
func getSingletonPhonyMap(config Config) phonyMap {
return config.Once(phonyMapOnceKey, func() interface{} {
return make(phonyMap)
}).(phonyMap)
}
func addSingletonPhony(config Config, name string, deps ...Path) {
phonyMap := getSingletonPhonyMap(config)
phonyMapLock.Lock()
defer phonyMapLock.Unlock()
phonyMap[name] = append(phonyMap[name], deps...)
}
type phonySingleton struct {
phonyMap phonyMap
phonyList []string
}
var _ SingletonMakeVarsProvider = (*phonySingleton)(nil)
func (p *phonySingleton) GenerateBuildActions(ctx SingletonContext) {
p.phonyMap = getSingletonPhonyMap(ctx.Config())
ctx.VisitAllModuleProxies(func(m ModuleProxy) {
if info, ok := OtherModuleProvider(ctx, m, ModulePhonyProvider); ok {
for k, v := range info.Phonies {
p.phonyMap[k] = append(p.phonyMap[k], v...)
}
}
})
p.phonyList = SortedKeys(p.phonyMap)
for _, phony := range p.phonyList {
p.phonyMap[phony] = SortedUniquePaths(p.phonyMap[phony])
}
if !ctx.Config().KatiEnabled() {
// In soong-only builds, the phonies can conflict with dist targets that will
// be generated in the packaging step. Instead of emitting a blueprint/ninja phony directly,
// create a makefile that defines the phonies that will be included in the packaging step.
// Make will dedup the phonies there.
var buildPhonyFileContents strings.Builder
for _, phony := range p.phonyList {
buildPhonyFileContents.WriteString(".PHONY: ")
buildPhonyFileContents.WriteString(phony)
buildPhonyFileContents.WriteString("\n")
buildPhonyFileContents.WriteString(phony)
buildPhonyFileContents.WriteString(":")
for _, dep := range p.phonyMap[phony] {
buildPhonyFileContents.WriteString(" ")
buildPhonyFileContents.WriteString(dep.String())
}
buildPhonyFileContents.WriteString("\n")
}
buildPhonyFile := PathForOutput(ctx, "soong_phony_targets.mk")
writeValueIfChanged(ctx, absolutePath(buildPhonyFile.String()), buildPhonyFileContents.String())
}
}
func (p phonySingleton) MakeVars(ctx MakeVarsContext) {
for _, phony := range p.phonyList {
ctx.Phony(phony, p.phonyMap[phony]...)
}
}
func phonySingletonFactory() Singleton {
return &phonySingleton{}
}
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