Merge "Add timing of bp2build steps"

// an alternate pipeline of mutators and singletons specifically for generating

// Bazel BUILD files instead of Ninja files.

func runBp2Build(configuration android.Config, extraNinjaDeps []string) {

	var codegenMetrics bp2build.CodegenMetrics

	eventHandler := metrics.EventHandler{}

	var metrics bp2build.CodegenMetrics

	eventHandler.Do("bp2build", func() {

		// Register an alternate set of singletons and mutators for bazel

		bp2buildCtx.SetNameInterface(newNameResolver(configuration))

		bp2buildCtx.RegisterForBazelConversion()

		var ninjaDeps []string

		ninjaDeps = append(ninjaDeps, extraNinjaDeps...)

		// The bp2build process is a purely functional process that only depends on

		// Android.bp files. It must not depend on the values of per-build product

		// configurations or variables, since those will generate different BUILD

		// files based on how the user has configured their tree.

		bp2buildCtx.SetModuleListFile(cmdlineArgs.ModuleListFile)

		modulePaths, err := bp2buildCtx.ListModulePaths(".")

		if err != nil {

		if modulePaths, err := bp2buildCtx.ListModulePaths("."); err != nil {

			panic(err)

		} else {

			ninjaDeps = append(ninjaDeps, modulePaths...)

		}

		extraNinjaDeps = append(extraNinjaDeps, modulePaths...)

		// Run the loading and analysis pipeline to prepare the graph of regular

		// Modules parsed from Android.bp files, and the BazelTargetModules mapped

		// from the regular Modules.

		eventHandler.Do("bootstrap", func() {

			blueprintArgs := cmdlineArgs

		ninjaDeps := bootstrap.RunBlueprint(blueprintArgs, bootstrap.StopBeforePrepareBuildActions, bp2buildCtx.Context, configuration)

		ninjaDeps = append(ninjaDeps, extraNinjaDeps...)

			bootstrapDeps := bootstrap.RunBlueprint(blueprintArgs, bootstrap.StopBeforePrepareBuildActions, bp2buildCtx.Context, configuration)

			ninjaDeps = append(ninjaDeps, bootstrapDeps...)

		})

		globListFiles := writeBuildGlobsNinjaFile(bp2buildCtx, configuration.SoongOutDir(), configuration)

		ninjaDeps = append(ninjaDeps, globListFiles...)

		// Run the code-generation phase to convert BazelTargetModules to BUILD files

		// and print conversion metrics to the user.

		// and print conversion codegenMetrics to the user.

		codegenContext := bp2build.NewCodegenContext(configuration, *bp2buildCtx, bp2build.Bp2Build)

		metrics = bp2build.Codegen(codegenContext)

		eventHandler.Do("codegen", func() {

			codegenMetrics = bp2build.Codegen(codegenContext)

		})

		generatedRoot := shared.JoinPath(configuration.SoongOutDir(), "bp2build")

		workspaceRoot := shared.JoinPath(configuration.SoongOutDir(), "workspace")

		excludes = append(excludes, getTemporaryExcludes()...)

		// PlantSymlinkForest() returns all the directories that were readdir()'ed.

		// Such a directory SHOULD be added to `ninjaDeps` so that a child directory

		// or file created/deleted under it would trigger an update of the symlink

		// forest.

		eventHandler.Do("symlink_forest", func() {

			symlinkForestDeps := bp2build.PlantSymlinkForest(

				configuration, topDir, workspaceRoot, generatedRoot, ".", excludes)

			ninjaDeps = append(ninjaDeps, symlinkForestDeps...)

		})

		ninjaDeps = append(ninjaDeps, codegenContext.AdditionalNinjaDeps()...)

		ninjaDeps = append(ninjaDeps, symlinkForestDeps...)

		writeDepFile(bp2buildMarker, eventHandler, ninjaDeps)

	// for queryview, since that's a total repo-wide conversion and there's a

	// 1:1 mapping for each module.

	if configuration.IsEnvTrue("BP2BUILD_VERBOSE") {

		metrics.Print()

		codegenMetrics.Print()

	}

	writeBp2BuildMetrics(&metrics, configuration, eventHandler)

	writeBp2BuildMetrics(&codegenMetrics, configuration, eventHandler)

}

// Write Bp2Build metrics into $LOG_DIR