Revert^3 "Use Soong-built system/build.prop"
625f66136dda856ec03642bf5699b9aa4f614953
Change-Id: I69b09646fb3286dcc5df638f87625f4eb8dcfcb2
diff --git a/android/buildinfo_prop.go b/android/buildinfo_prop.go
new file mode 100644
index 0000000..bba4c0d
--- /dev/null
+++ b/android/buildinfo_prop.go
@@ -0,0 +1,132 @@
+// Copyright 2022 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 (
+ "github.com/google/blueprint/proptools"
+)
+
+func init() {
+ ctx := InitRegistrationContext
+ ctx.RegisterModuleType("buildinfo_prop", buildinfoPropFactory)
+}
+
+type buildinfoPropProperties struct {
+ // Whether this module is directly installable to one of the partitions. Default: true.
+ Installable *bool
+
+ Product_config *string `android:"path"`
+}
+
+type buildinfoPropModule struct {
+ ModuleBase
+
+ properties buildinfoPropProperties
+
+ outputFilePath OutputPath
+ installPath InstallPath
+}
+
+func (p *buildinfoPropModule) installable() bool {
+ return proptools.BoolDefault(p.properties.Installable, true)
+}
+
+func shouldAddBuildThumbprint(config Config) bool {
+ knownOemProperties := []string{
+ "ro.product.brand",
+ "ro.product.name",
+ "ro.product.device",
+ }
+
+ for _, knownProp := range knownOemProperties {
+ if InList(knownProp, config.OemProperties()) {
+ return true
+ }
+ }
+ return false
+}
+
+func (p *buildinfoPropModule) GenerateAndroidBuildActions(ctx ModuleContext) {
+ if ctx.ModuleName() != "buildinfo.prop" || ctx.ModuleDir() != "build/soong" {
+ ctx.ModuleErrorf("There can only be one buildinfo_prop module in build/soong")
+ return
+ }
+ p.outputFilePath = PathForModuleOut(ctx, p.Name()).OutputPath
+ ctx.SetOutputFiles(Paths{p.outputFilePath}, "")
+
+ if !ctx.Config().KatiEnabled() {
+ WriteFileRule(ctx, p.outputFilePath, "# no buildinfo.prop if kati is disabled")
+ return
+ }
+
+ rule := NewRuleBuilder(pctx, ctx)
+
+ config := ctx.Config()
+
+ cmd := rule.Command().BuiltTool("buildinfo")
+
+ cmd.FlagWithInput("--build-hostname-file=", config.BuildHostnameFile(ctx))
+ // Note: depending on BuildNumberFile will cause the build.prop file to be rebuilt
+ // every build, but that's intentional.
+ cmd.FlagWithInput("--build-number-file=", config.BuildNumberFile(ctx))
+ // Export build thumbprint only if the product has specified at least one oem fingerprint property
+ // b/17888863
+ if shouldAddBuildThumbprint(config) {
+ // In the previous make implementation, a dependency was not added on the thumbprint file
+ cmd.FlagWithArg("--build-thumbprint-file=", config.BuildThumbprintFile(ctx).String())
+ }
+ cmd.FlagWithArg("--build-username=", config.Getenv("BUILD_USERNAME"))
+ // Technically we should also have a dependency on BUILD_DATETIME_FILE,
+ // but it can be either an absolute or relative path, which is hard to turn into
+ // a Path object. So just rely on the BuildNumberFile always changing to cause
+ // us to rebuild.
+ cmd.FlagWithArg("--date-file=", ctx.Config().Getenv("BUILD_DATETIME_FILE"))
+ cmd.FlagWithInput("--platform-preview-sdk-fingerprint-file=", ApiFingerprintPath(ctx))
+ cmd.FlagWithInput("--product-config=", PathForModuleSrc(ctx, proptools.String(p.properties.Product_config)))
+ cmd.FlagWithOutput("--out=", p.outputFilePath)
+
+ rule.Build(ctx.ModuleName(), "generating buildinfo props")
+
+ if !p.installable() {
+ p.SkipInstall()
+ }
+
+ p.installPath = PathForModuleInstall(ctx)
+ ctx.InstallFile(p.installPath, p.Name(), p.outputFilePath)
+}
+
+func (p *buildinfoPropModule) AndroidMkEntries() []AndroidMkEntries {
+ return []AndroidMkEntries{{
+ Class: "ETC",
+ OutputFile: OptionalPathForPath(p.outputFilePath),
+ ExtraEntries: []AndroidMkExtraEntriesFunc{
+ func(ctx AndroidMkExtraEntriesContext, entries *AndroidMkEntries) {
+ entries.SetString("LOCAL_MODULE_PATH", p.installPath.String())
+ entries.SetString("LOCAL_INSTALLED_MODULE_STEM", p.outputFilePath.Base())
+ entries.SetBoolIfTrue("LOCAL_UNINSTALLABLE_MODULE", !p.installable())
+ },
+ },
+ }}
+}
+
+// buildinfo_prop module generates a build.prop file, which contains a set of common
+// system/build.prop properties, such as ro.build.version.*. Not all properties are implemented;
+// currently this module is only for microdroid.
+func buildinfoPropFactory() Module {
+ module := &buildinfoPropModule{}
+ module.AddProperties(&module.properties)
+ InitAndroidModule(module)
+ return module
+}