Add build_prop soong module (2da72af5) · Commits · e / os / android_build_soong

Android.bp

+2 −1

Original line number	Diff line number	Diff line
		@@ -122,6 +122,7 @@ dexpreopt_systemserver_check {
		}

		// buildinfo.prop contains common properties for system/build.prop, like ro.build.version.*
		// TODO(b/322090587): merge this to gen_build_prop.py script.
		buildinfo_prop {
		name: "buildinfo.prop",

		@@ -141,5 +142,5 @@ all_apex_contributions {

		product_config {
		name: "product_config",
		visibility: ["//visibility:private"],
		visibility: ["//device/google/cuttlefish/system_image"],
		}

android/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,7 @@ bootstrap_go_package {
		"arch_list.go",
		"arch_module_context.go",
		"base_module_context.go",
		"build_prop.go",
		"buildinfo_prop.go",
		"config.go",
		"test_config.go",

android/build_prop.go

0 → 100644

+125 −0

Original line number	Diff line number	Diff line
		// Copyright 2024 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("build_prop", buildPropFactory)
		}

		type buildPropProperties struct {
		// Output file name. Defaults to "build.prop"
		Stem *string

		// List of prop names to exclude. This affects not only common build properties but also
		// properties in prop_files.
		Block_list []string

		// Path to the input prop files. The contents of the files are directly
		// emitted to the output
		Prop_files []string `android:"path"`

		// Files to be appended at the end of build.prop. These files are appended after
		// post_process_props without any further checking.
		Footer_files []string `android:"path"`

		// Path to a JSON file containing product configs.
		Product_config *string `android:"path"`
		}

		type buildPropModule struct {
		ModuleBase

		properties buildPropProperties

		outputFilePath OutputPath
		installPath InstallPath
		}

		func (p *buildPropModule) stem() string {
		return proptools.StringDefault(p.properties.Stem, "build.prop")
		}

		func (p *buildPropModule) GenerateAndroidBuildActions(ctx ModuleContext) {
		p.outputFilePath = PathForModuleOut(ctx, "build.prop").OutputPath
		if !ctx.Config().KatiEnabled() {
		WriteFileRule(ctx, p.outputFilePath, "# no build.prop if kati is disabled")
		return
		}

		partition := p.PartitionTag(ctx.DeviceConfig())
		if partition != "system" {
		ctx.PropertyErrorf("partition", "unsupported partition %q: only \"system\" is supported", partition)
		return
		}

		rule := NewRuleBuilder(pctx, ctx)

		config := ctx.Config()

		cmd := rule.Command().BuiltTool("gen_build_prop")

		cmd.FlagWithInput("--build-hostname-file=", config.BuildHostnameFile(ctx))
		cmd.FlagWithInput("--build-number-file=", config.BuildNumberFile(ctx))
		// shouldn't depend on BuildFingerprintFile and BuildThumbprintFile to prevent from rebuilding
		// on every incremental build.
		cmd.FlagWithArg("--build-fingerprint-file=", config.BuildFingerprintFile(ctx).String())
		// 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"))
		// shouldn't depend on BUILD_DATETIME_FILE to prevent from rebuilding on every incremental
		// build.
		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.FlagWithArg("--partition=", partition)
		cmd.FlagWithOutput("--out=", p.outputFilePath)

		postProcessCmd := rule.Command().BuiltTool("post_process_props")
		if ctx.DeviceConfig().BuildBrokenDupSysprop() {
		postProcessCmd.Flag("--allow-dup")
		}
		postProcessCmd.FlagWithArg("--sdk-version ", config.PlatformSdkVersion().String())
		postProcessCmd.FlagWithInput("--kernel-version-file-for-uffd-gc ", PathForOutput(ctx, "dexpreopt/kernel_version_for_uffd_gc.txt"))
		postProcessCmd.Text(p.outputFilePath.String())
		postProcessCmd.Flags(p.properties.Block_list)

		rule.Command().Text("echo").Text(proptools.NinjaAndShellEscape("# end of file")).FlagWithArg(">> ", p.outputFilePath.String())

		rule.Build(ctx.ModuleName(), "generating build.prop")

		p.installPath = PathForModuleInstall(ctx)
		ctx.InstallFile(p.installPath, p.stem(), p.outputFilePath)

		ctx.SetOutputFiles(Paths{p.outputFilePath}, "")
		}

		// build_prop module generates {partition}/build.prop file. At first common build properties are
		// printed based on Soong config variables. And then prop_files are printed as-is. Finally,
		// post_process_props tool is run to check if the result build.prop is valid or not.
		func buildPropFactory() Module {
		module := &buildPropModule{}
		module.AddProperties(&module.properties)
		InitAndroidArchModule(module, DeviceSupported, MultilibCommon)
		return module
		}

android/buildinfo_prop.go

+2 −0

Original line number	Diff line number	Diff line
		@@ -91,6 +91,8 @@ func (p *buildinfoPropModule) GenerateAndroidBuildActions(ctx ModuleContext) {
		// 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())

android/config.go

+15 −0

Original line number	Diff line number	Diff line
		@@ -779,6 +779,17 @@ func (c *config) DisplayBuildNumber() bool {
		return Bool(c.productVariables.DisplayBuildNumber)
		}

		// BuildFingerprintFile returns the path to a text file containing metadata
		// representing the current build's fingerprint.
		//
		// Rules that want to reference the build fingerprint should read from this file
		// without depending on it. They will run whenever their other dependencies
		// require them to run and get the current build fingerprint. This ensures they
		// don't rebuild on every incremental build when the build number changes.
		func (c *config) BuildFingerprintFile(ctx PathContext) Path {
		return PathForArbitraryOutput(ctx, "target", "product", c.DeviceName(), String(c.productVariables.BuildFingerprintFile))
		}

		// BuildNumberFile returns the path to a text file containing metadata
		// representing the current build's number.
		//
		@@ -1882,6 +1893,10 @@ func (c *deviceConfig) BuildBrokenDontCheckSystemSdk() bool {
		return c.config.productVariables.BuildBrokenDontCheckSystemSdk
		}

		func (c *deviceConfig) BuildBrokenDupSysprop() bool {
		return c.config.productVariables.BuildBrokenDupSysprop
		}

		func (c *config) BuildWarningBadOptionalUsesLibsAllowlist() []string {
		return c.productVariables.BuildWarningBadOptionalUsesLibsAllowlist
		}