Merge "Generalize deapexer module to export any files"

// This is intentionally not registered by name as it is not intended to be used from within an

// `Android.bp` file.

// Properties that are specific to `deapexer` but which need to be provided on the `prebuilt_apex`

// module.`

// DeapexerExportedFile defines the properties needed to expose a file from the deapexer module.

type DeapexerExportedFile struct {

	// The tag parameter which must be passed to android.OutputFileProducer OutputFiles(tag) method

	// to retrieve the path to the unpacked file.

	Tag string

	// The path within the APEX that needs to be exported.

	Path string `android:"path"`

}

// DeapexerProperties specifies the properties supported by the deapexer module.

//

// As these are never intended to be supplied in a .bp file they use a different naming convention

// to make it clear that they are different.

type DeapexerProperties struct {

	// List of java libraries that are embedded inside this prebuilt APEX bundle and for which this

	// APEX bundle will create an APEX variant and provide dex implementation jars for use by

	// dexpreopt and boot jars package check.

	Exported_java_libs []string

	// List of bootclasspath fragments inside this prebuiltd APEX bundle and for which this APEX

	// bundle will create an APEX variant.

	Exported_bootclasspath_fragments []string

	// List of common modules that may need access to files exported by this module.

	//

	// A common module in this sense is one that is not arch specific but uses a common variant for

	// all architectures, e.g. java.

	CommonModules []string

	// List of files exported from the .apex file by this module

	ExportedFiles []DeapexerExportedFile

}

type SelectedApexProperties struct {

func (p *Deapexer) DepsMutator(ctx android.BottomUpMutatorContext) {

	// Add dependencies from the java modules to which this exports files from the `.apex` file onto

	// this module so that they can access the `DeapexerInfo` object that this provides.

	for _, lib := range p.properties.Exported_java_libs {

	for _, lib := range p.properties.CommonModules {

		dep := prebuiltApexExportedModuleName(ctx, lib)

		ctx.AddReverseDependency(ctx.Module(), android.DeapexerTag, dep)

	}

	exports := make(map[string]android.Path)

	// Create mappings from name+tag to all the required exported paths.

	for _, l := range p.properties.Exported_java_libs {

		// Populate the exports that this makes available. The path here must match the path of the

		// file in the APEX created by apexFileForJavaModule(...).

		exports[l+"{.dexjar}"] = deapexerOutput.Join(ctx, "javalib", l+".jar")

	for _, e := range p.properties.ExportedFiles {

		tag := e.Tag

		path := e.Path

		// Populate the exports that this makes available.

		exports[tag] = deapexerOutput.Join(ctx, path)

	}

	// If the prebuilt_apex exports any files then create a build rule that unpacks the apex using

import (

	"fmt"

	"path/filepath"

	"strconv"

	"strings"

}

type prebuiltCommonProperties struct {

	DeapexerProperties

	SelectedApexProperties

	ForceDisable bool `blueprint:"mutated"`

	// List of java libraries that are embedded inside this prebuilt APEX bundle and for which this

	// APEX bundle will create an APEX variant and provide dex implementation jars for use by

	// dexpreopt and boot jars package check.

	Exported_java_libs []string

	// List of bootclasspath fragments inside this prebuilt APEX bundle and for which this APEX

	// bundle will create an APEX variant.

	Exported_bootclasspath_fragments []string

}

func (p *prebuiltCommon) Prebuilt() *android.Prebuilt {

	}

	// Compute the deapexer properties from the transitive dependencies of this module.

	deapexerProperties := &DeapexerProperties{}

	javaModules := []string{}

	exportedFiles := map[string]string{}

	ctx.WalkDeps(func(child, parent android.Module) bool {

		tag := ctx.OtherModuleDependencyTag(child)

		name := android.RemoveOptionalPrebuiltPrefix(ctx.OtherModuleName(child))

		if java.IsBootclasspathFragmentContentDepTag(tag) || tag == exportedJavaLibTag {

			deapexerProperties.Exported_java_libs = append(deapexerProperties.Exported_java_libs, name)

			javaModules = append(javaModules, name)

			// Add the dex implementation jar to the set of exported files. The path here must match the

			// path of the file in the APEX created by apexFileForJavaModule(...).

			exportedFiles[name+"{.dexjar}"] = filepath.Join("javalib", name+".jar")

		} else if tag == exportedBootclasspathFragmentTag {

			deapexerProperties.Exported_bootclasspath_fragments = append(deapexerProperties.Exported_bootclasspath_fragments, name)

			// Only visit the children of the bootclasspath_fragment for now.

			return true

		}

		return false

	})

	// Remove any duplicates from the deapexer lists.

	deapexerProperties.Exported_bootclasspath_fragments = android.FirstUniqueStrings(deapexerProperties.Exported_bootclasspath_fragments)

	deapexerProperties.Exported_java_libs = android.FirstUniqueStrings(deapexerProperties.Exported_java_libs)

	// Create properties for deapexer module.

	deapexerProperties := &DeapexerProperties{

		// Remove any duplicates from the java modules lists as a module may be included via a direct

		// dependency as well as transitive ones.

		CommonModules: android.SortedUniqueStrings(javaModules),

	}

	// Populate the exported files property in a fixed order.

	for _, tag := range android.SortedStringKeys(exportedFiles) {

		deapexerProperties.ExportedFiles = append(deapexerProperties.ExportedFiles, DeapexerExportedFile{

			Tag:  tag,

			Path: exportedFiles[tag],

		})

	}

	props := struct {

		Name          *string