Split *ModuleContext out of module.go

Move EarlyModuleContext, BaseModuleContext and ModuleContext out of
module.go and into early_module_context, base_module_context and
module_context.go respectively.

Test: builds
Change-Id: I52e6eb1589d1478233c1c55d770b395a16eaa1a3
diff --git a/android/module_context.go b/android/module_context.go
new file mode 100644
index 0000000..0b4d28c
--- /dev/null
+++ b/android/module_context.go
@@ -0,0 +1,698 @@
+// Copyright 2015 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 (
+	"fmt"
+	"github.com/google/blueprint"
+	"github.com/google/blueprint/proptools"
+	"path"
+	"path/filepath"
+	"strings"
+)
+
+// BuildParameters describes the set of potential parameters to build a Ninja rule.
+// In general, these correspond to a Ninja concept.
+type BuildParams struct {
+	// A Ninja Rule that will be written to the Ninja file. This allows factoring out common code
+	// among multiple modules to reduce repetition in the Ninja file of action requirements. A rule
+	// can contain variables that should be provided in Args.
+	Rule blueprint.Rule
+	// Deps represents the depfile format. When using RuleBuilder, this defaults to GCC when depfiles
+	// are used.
+	Deps blueprint.Deps
+	// Depfile is a writeable path that allows correct incremental builds when the inputs have not
+	// been fully specified by the Ninja rule. Ninja supports a subset of the Makefile depfile syntax.
+	Depfile WritablePath
+	// A description of the build action.
+	Description string
+	// Output is an output file of the action. When using this field, references to $out in the Ninja
+	// command will refer to this file.
+	Output WritablePath
+	// Outputs is a slice of output file of the action. When using this field, references to $out in
+	// the Ninja command will refer to these files.
+	Outputs WritablePaths
+	// SymlinkOutput is an output file specifically that is a symlink.
+	SymlinkOutput WritablePath
+	// SymlinkOutputs is a slice of output files specifically that is a symlink.
+	SymlinkOutputs WritablePaths
+	// ImplicitOutput is an output file generated by the action. Note: references to `$out` in the
+	// Ninja command will NOT include references to this file.
+	ImplicitOutput WritablePath
+	// ImplicitOutputs is a slice of output files generated by the action. Note: references to `$out`
+	// in the Ninja command will NOT include references to these files.
+	ImplicitOutputs WritablePaths
+	// Input is an input file to the Ninja action. When using this field, references to $in in the
+	// Ninja command will refer to this file.
+	Input Path
+	// Inputs is a slice of input files to the Ninja action. When using this field, references to $in
+	// in the Ninja command will refer to these files.
+	Inputs Paths
+	// Implicit is an input file to the Ninja action. Note: references to `$in` in the Ninja command
+	// will NOT include references to this file.
+	Implicit Path
+	// Implicits is a slice of input files to the Ninja action. Note: references to `$in` in the Ninja
+	// command will NOT include references to these files.
+	Implicits Paths
+	// OrderOnly are Ninja order-only inputs to the action. When these are out of date, the output is
+	// not rebuilt until they are built, but changes in order-only dependencies alone do not cause the
+	// output to be rebuilt.
+	OrderOnly Paths
+	// Validation is an output path for a validation action. Validation outputs imply lower
+	// non-blocking priority to building non-validation outputs.
+	Validation Path
+	// Validations is a slice of output path for a validation action. Validation outputs imply lower
+	// non-blocking priority to building non-validation outputs.
+	Validations Paths
+	// Whether to skip outputting a default target statement which will be built by Ninja when no
+	// targets are specified on Ninja's command line.
+	Default bool
+	// Args is a key value mapping for replacements of variables within the Rule
+	Args map[string]string
+}
+
+type ModuleBuildParams BuildParams
+
+type ModuleContext interface {
+	BaseModuleContext
+
+	blueprintModuleContext() blueprint.ModuleContext
+
+	// Deprecated: use ModuleContext.Build instead.
+	ModuleBuild(pctx PackageContext, params ModuleBuildParams)
+
+	// Returns a list of paths expanded from globs and modules referenced using ":module" syntax.  The property must
+	// be tagged with `android:"path" to support automatic source module dependency resolution.
+	//
+	// Deprecated: use PathsForModuleSrc or PathsForModuleSrcExcludes instead.
+	ExpandSources(srcFiles, excludes []string) Paths
+
+	// Returns a single path expanded from globs and modules referenced using ":module" syntax.  The property must
+	// be tagged with `android:"path" to support automatic source module dependency resolution.
+	//
+	// Deprecated: use PathForModuleSrc instead.
+	ExpandSource(srcFile, prop string) Path
+
+	ExpandOptionalSource(srcFile *string, prop string) OptionalPath
+
+	// InstallExecutable creates a rule to copy srcPath to name in the installPath directory,
+	// with the given additional dependencies.  The file is marked executable after copying.
+	//
+	// The installed file will be returned by FilesToInstall(), and the PackagingSpec for the
+	// installed file will be returned by PackagingSpecs() on this module or by
+	// TransitivePackagingSpecs() on modules that depend on this module through dependency tags
+	// for which IsInstallDepNeeded returns true.
+	InstallExecutable(installPath InstallPath, name string, srcPath Path, deps ...Path) InstallPath
+
+	// InstallFile creates a rule to copy srcPath to name in the installPath directory,
+	// with the given additional dependencies.
+	//
+	// The installed file will be returned by FilesToInstall(), and the PackagingSpec for the
+	// installed file will be returned by PackagingSpecs() on this module or by
+	// TransitivePackagingSpecs() on modules that depend on this module through dependency tags
+	// for which IsInstallDepNeeded returns true.
+	InstallFile(installPath InstallPath, name string, srcPath Path, deps ...Path) InstallPath
+
+	// InstallFileWithExtraFilesZip creates a rule to copy srcPath to name in the installPath
+	// directory, and also unzip a zip file containing extra files to install into the same
+	// directory.
+	//
+	// The installed file will be returned by FilesToInstall(), and the PackagingSpec for the
+	// installed file will be returned by PackagingSpecs() on this module or by
+	// TransitivePackagingSpecs() on modules that depend on this module through dependency tags
+	// for which IsInstallDepNeeded returns true.
+	InstallFileWithExtraFilesZip(installPath InstallPath, name string, srcPath Path, extraZip Path, deps ...Path) InstallPath
+
+	// InstallSymlink creates a rule to create a symlink from src srcPath to name in the installPath
+	// directory.
+	//
+	// The installed symlink will be returned by FilesToInstall(), and the PackagingSpec for the
+	// installed file will be returned by PackagingSpecs() on this module or by
+	// TransitivePackagingSpecs() on modules that depend on this module through dependency tags
+	// for which IsInstallDepNeeded returns true.
+	InstallSymlink(installPath InstallPath, name string, srcPath InstallPath) InstallPath
+
+	// InstallAbsoluteSymlink creates a rule to create an absolute symlink from src srcPath to name
+	// in the installPath directory.
+	//
+	// The installed symlink will be returned by FilesToInstall(), and the PackagingSpec for the
+	// installed file will be returned by PackagingSpecs() on this module or by
+	// TransitivePackagingSpecs() on modules that depend on this module through dependency tags
+	// for which IsInstallDepNeeded returns true.
+	InstallAbsoluteSymlink(installPath InstallPath, name string, absPath string) InstallPath
+
+	// PackageFile creates a PackagingSpec as if InstallFile was called, but without creating
+	// the rule to copy the file.  This is useful to define how a module would be packaged
+	// without installing it into the global installation directories.
+	//
+	// The created PackagingSpec for the will be returned by PackagingSpecs() on this module or by
+	// TransitivePackagingSpecs() on modules that depend on this module through dependency tags
+	// for which IsInstallDepNeeded returns true.
+	PackageFile(installPath InstallPath, name string, srcPath Path) PackagingSpec
+
+	CheckbuildFile(srcPath Path)
+
+	InstallInData() bool
+	InstallInTestcases() bool
+	InstallInSanitizerDir() bool
+	InstallInRamdisk() bool
+	InstallInVendorRamdisk() bool
+	InstallInDebugRamdisk() bool
+	InstallInRecovery() bool
+	InstallInRoot() bool
+	InstallInVendor() bool
+	InstallForceOS() (*OsType, *ArchType)
+
+	RequiredModuleNames() []string
+	HostRequiredModuleNames() []string
+	TargetRequiredModuleNames() []string
+
+	ModuleSubDir() string
+	SoongConfigTraceHash() string
+
+	Variable(pctx PackageContext, name, value string)
+	Rule(pctx PackageContext, name string, params blueprint.RuleParams, argNames ...string) blueprint.Rule
+	// Similar to blueprint.ModuleContext.Build, but takes Paths instead of []string,
+	// and performs more verification.
+	Build(pctx PackageContext, params BuildParams)
+	// Phony creates a Make-style phony rule, a rule with no commands that can depend on other
+	// phony rules or real files.  Phony can be called on the same name multiple times to add
+	// additional dependencies.
+	Phony(phony string, deps ...Path)
+
+	// GetMissingDependencies returns the list of dependencies that were passed to AddDependencies or related methods,
+	// but do not exist.
+	GetMissingDependencies() []string
+
+	// LicenseMetadataFile returns the path where the license metadata for this module will be
+	// generated.
+	LicenseMetadataFile() Path
+}
+
+type moduleContext struct {
+	bp blueprint.ModuleContext
+	baseModuleContext
+	packagingSpecs  []PackagingSpec
+	installFiles    InstallPaths
+	checkbuildFiles Paths
+	module          Module
+	phonies         map[string]Paths
+
+	katiInstalls []katiInstall
+	katiSymlinks []katiInstall
+
+	// For tests
+	buildParams []BuildParams
+	ruleParams  map[blueprint.Rule]blueprint.RuleParams
+	variables   map[string]string
+}
+
+func (m *moduleContext) ninjaError(params BuildParams, err error) (PackageContext, BuildParams) {
+	return pctx, BuildParams{
+		Rule:            ErrorRule,
+		Description:     params.Description,
+		Output:          params.Output,
+		Outputs:         params.Outputs,
+		ImplicitOutput:  params.ImplicitOutput,
+		ImplicitOutputs: params.ImplicitOutputs,
+		Args: map[string]string{
+			"error": err.Error(),
+		},
+	}
+}
+
+func (m *moduleContext) ModuleBuild(pctx PackageContext, params ModuleBuildParams) {
+	m.Build(pctx, BuildParams(params))
+}
+
+func validateBuildParams(params blueprint.BuildParams) error {
+	// Validate that the symlink outputs are declared outputs or implicit outputs
+	allOutputs := map[string]bool{}
+	for _, output := range params.Outputs {
+		allOutputs[output] = true
+	}
+	for _, output := range params.ImplicitOutputs {
+		allOutputs[output] = true
+	}
+	for _, symlinkOutput := range params.SymlinkOutputs {
+		if !allOutputs[symlinkOutput] {
+			return fmt.Errorf(
+				"Symlink output %s is not a declared output or implicit output",
+				symlinkOutput)
+		}
+	}
+	return nil
+}
+
+// Convert build parameters from their concrete Android types into their string representations,
+// and combine the singular and plural fields of the same type (e.g. Output and Outputs).
+func convertBuildParams(params BuildParams) blueprint.BuildParams {
+	bparams := blueprint.BuildParams{
+		Rule:            params.Rule,
+		Description:     params.Description,
+		Deps:            params.Deps,
+		Outputs:         params.Outputs.Strings(),
+		ImplicitOutputs: params.ImplicitOutputs.Strings(),
+		SymlinkOutputs:  params.SymlinkOutputs.Strings(),
+		Inputs:          params.Inputs.Strings(),
+		Implicits:       params.Implicits.Strings(),
+		OrderOnly:       params.OrderOnly.Strings(),
+		Validations:     params.Validations.Strings(),
+		Args:            params.Args,
+		Optional:        !params.Default,
+	}
+
+	if params.Depfile != nil {
+		bparams.Depfile = params.Depfile.String()
+	}
+	if params.Output != nil {
+		bparams.Outputs = append(bparams.Outputs, params.Output.String())
+	}
+	if params.SymlinkOutput != nil {
+		bparams.SymlinkOutputs = append(bparams.SymlinkOutputs, params.SymlinkOutput.String())
+	}
+	if params.ImplicitOutput != nil {
+		bparams.ImplicitOutputs = append(bparams.ImplicitOutputs, params.ImplicitOutput.String())
+	}
+	if params.Input != nil {
+		bparams.Inputs = append(bparams.Inputs, params.Input.String())
+	}
+	if params.Implicit != nil {
+		bparams.Implicits = append(bparams.Implicits, params.Implicit.String())
+	}
+	if params.Validation != nil {
+		bparams.Validations = append(bparams.Validations, params.Validation.String())
+	}
+
+	bparams.Outputs = proptools.NinjaEscapeList(bparams.Outputs)
+	bparams.ImplicitOutputs = proptools.NinjaEscapeList(bparams.ImplicitOutputs)
+	bparams.SymlinkOutputs = proptools.NinjaEscapeList(bparams.SymlinkOutputs)
+	bparams.Inputs = proptools.NinjaEscapeList(bparams.Inputs)
+	bparams.Implicits = proptools.NinjaEscapeList(bparams.Implicits)
+	bparams.OrderOnly = proptools.NinjaEscapeList(bparams.OrderOnly)
+	bparams.Validations = proptools.NinjaEscapeList(bparams.Validations)
+	bparams.Depfile = proptools.NinjaEscape(bparams.Depfile)
+
+	return bparams
+}
+
+func (m *moduleContext) Variable(pctx PackageContext, name, value string) {
+	if m.config.captureBuild {
+		m.variables[name] = value
+	}
+
+	m.bp.Variable(pctx.PackageContext, name, value)
+}
+
+func (m *moduleContext) Rule(pctx PackageContext, name string, params blueprint.RuleParams,
+	argNames ...string) blueprint.Rule {
+
+	if m.config.UseRemoteBuild() {
+		if params.Pool == nil {
+			// When USE_GOMA=true or USE_RBE=true are set and the rule is not supported by goma/RBE, restrict
+			// jobs to the local parallelism value
+			params.Pool = localPool
+		} else if params.Pool == remotePool {
+			// remotePool is a fake pool used to identify rule that are supported for remoting. If the rule's
+			// pool is the remotePool, replace with nil so that ninja runs it at NINJA_REMOTE_NUM_JOBS
+			// parallelism.
+			params.Pool = nil
+		}
+	}
+
+	rule := m.bp.Rule(pctx.PackageContext, name, params, argNames...)
+
+	if m.config.captureBuild {
+		m.ruleParams[rule] = params
+	}
+
+	return rule
+}
+
+func (m *moduleContext) Build(pctx PackageContext, params BuildParams) {
+	if params.Description != "" {
+		params.Description = "${moduleDesc}" + params.Description + "${moduleDescSuffix}"
+	}
+
+	if missingDeps := m.GetMissingDependencies(); len(missingDeps) > 0 {
+		pctx, params = m.ninjaError(params, fmt.Errorf("module %s missing dependencies: %s\n",
+			m.ModuleName(), strings.Join(missingDeps, ", ")))
+	}
+
+	if m.config.captureBuild {
+		m.buildParams = append(m.buildParams, params)
+	}
+
+	bparams := convertBuildParams(params)
+	err := validateBuildParams(bparams)
+	if err != nil {
+		m.ModuleErrorf(
+			"%s: build parameter validation failed: %s",
+			m.ModuleName(),
+			err.Error())
+	}
+	m.bp.Build(pctx.PackageContext, bparams)
+}
+
+func (m *moduleContext) Phony(name string, deps ...Path) {
+	addPhony(m.config, name, deps...)
+}
+
+func (m *moduleContext) GetMissingDependencies() []string {
+	var missingDeps []string
+	missingDeps = append(missingDeps, m.Module().base().commonProperties.MissingDeps...)
+	missingDeps = append(missingDeps, m.bp.GetMissingDependencies()...)
+	missingDeps = FirstUniqueStrings(missingDeps)
+	return missingDeps
+}
+
+func (m *moduleContext) GetDirectDepWithTag(name string, tag blueprint.DependencyTag) blueprint.Module {
+	module, _ := m.getDirectDepInternal(name, tag)
+	return module
+}
+
+func (m *moduleContext) ModuleSubDir() string {
+	return m.bp.ModuleSubDir()
+}
+
+func (m *moduleContext) SoongConfigTraceHash() string {
+	return m.module.base().commonProperties.SoongConfigTraceHash
+}
+
+func (m *moduleContext) InstallInData() bool {
+	return m.module.InstallInData()
+}
+
+func (m *moduleContext) InstallInTestcases() bool {
+	return m.module.InstallInTestcases()
+}
+
+func (m *moduleContext) InstallInSanitizerDir() bool {
+	return m.module.InstallInSanitizerDir()
+}
+
+func (m *moduleContext) InstallInRamdisk() bool {
+	return m.module.InstallInRamdisk()
+}
+
+func (m *moduleContext) InstallInVendorRamdisk() bool {
+	return m.module.InstallInVendorRamdisk()
+}
+
+func (m *moduleContext) InstallInDebugRamdisk() bool {
+	return m.module.InstallInDebugRamdisk()
+}
+
+func (m *moduleContext) InstallInRecovery() bool {
+	return m.module.InstallInRecovery()
+}
+
+func (m *moduleContext) InstallInRoot() bool {
+	return m.module.InstallInRoot()
+}
+
+func (m *moduleContext) InstallForceOS() (*OsType, *ArchType) {
+	return m.module.InstallForceOS()
+}
+
+func (m *moduleContext) InstallInVendor() bool {
+	return m.module.InstallInVendor()
+}
+
+func (m *moduleContext) skipInstall() bool {
+	if m.module.base().commonProperties.SkipInstall {
+		return true
+	}
+
+	if m.module.base().commonProperties.HideFromMake {
+		return true
+	}
+
+	// We'll need a solution for choosing which of modules with the same name in different
+	// namespaces to install.  For now, reuse the list of namespaces exported to Make as the
+	// list of namespaces to install in a Soong-only build.
+	if !m.module.base().commonProperties.NamespaceExportedToMake {
+		return true
+	}
+
+	return false
+}
+
+func (m *moduleContext) InstallFile(installPath InstallPath, name string, srcPath Path,
+	deps ...Path) InstallPath {
+	return m.installFile(installPath, name, srcPath, deps, false, nil)
+}
+
+func (m *moduleContext) InstallExecutable(installPath InstallPath, name string, srcPath Path,
+	deps ...Path) InstallPath {
+	return m.installFile(installPath, name, srcPath, deps, true, nil)
+}
+
+func (m *moduleContext) InstallFileWithExtraFilesZip(installPath InstallPath, name string, srcPath Path,
+	extraZip Path, deps ...Path) InstallPath {
+	return m.installFile(installPath, name, srcPath, deps, false, &extraFilesZip{
+		zip: extraZip,
+		dir: installPath,
+	})
+}
+
+func (m *moduleContext) PackageFile(installPath InstallPath, name string, srcPath Path) PackagingSpec {
+	fullInstallPath := installPath.Join(m, name)
+	return m.packageFile(fullInstallPath, srcPath, false)
+}
+
+func (m *moduleContext) packageFile(fullInstallPath InstallPath, srcPath Path, executable bool) PackagingSpec {
+	licenseFiles := m.Module().EffectiveLicenseFiles()
+	spec := PackagingSpec{
+		relPathInPackage:      Rel(m, fullInstallPath.PartitionDir(), fullInstallPath.String()),
+		srcPath:               srcPath,
+		symlinkTarget:         "",
+		executable:            executable,
+		effectiveLicenseFiles: &licenseFiles,
+		partition:             fullInstallPath.partition,
+	}
+	m.packagingSpecs = append(m.packagingSpecs, spec)
+	return spec
+}
+
+func (m *moduleContext) installFile(installPath InstallPath, name string, srcPath Path, deps []Path,
+	executable bool, extraZip *extraFilesZip) InstallPath {
+
+	fullInstallPath := installPath.Join(m, name)
+	m.module.base().hooks.runInstallHooks(m, srcPath, fullInstallPath, false)
+
+	if !m.skipInstall() {
+		deps = append(deps, InstallPaths(m.module.base().installFilesDepSet.ToList()).Paths()...)
+
+		var implicitDeps, orderOnlyDeps Paths
+
+		if m.Host() {
+			// Installed host modules might be used during the build, depend directly on their
+			// dependencies so their timestamp is updated whenever their dependency is updated
+			implicitDeps = deps
+		} else {
+			orderOnlyDeps = deps
+		}
+
+		if m.Config().KatiEnabled() {
+			// When creating the install rule in Soong but embedding in Make, write the rule to a
+			// makefile instead of directly to the ninja file so that main.mk can add the
+			// dependencies from the `required` property that are hard to resolve in Soong.
+			m.katiInstalls = append(m.katiInstalls, katiInstall{
+				from:          srcPath,
+				to:            fullInstallPath,
+				implicitDeps:  implicitDeps,
+				orderOnlyDeps: orderOnlyDeps,
+				executable:    executable,
+				extraFiles:    extraZip,
+			})
+		} else {
+			rule := Cp
+			if executable {
+				rule = CpExecutable
+			}
+
+			extraCmds := ""
+			if extraZip != nil {
+				extraCmds += fmt.Sprintf(" && ( unzip -qDD -d '%s' '%s' 2>&1 | grep -v \"zipfile is empty\"; exit $${PIPESTATUS[0]} )",
+					extraZip.dir.String(), extraZip.zip.String())
+				extraCmds += " || ( code=$$?; if [ $$code -ne 0 -a $$code -ne 1 ]; then exit $$code; fi )"
+				implicitDeps = append(implicitDeps, extraZip.zip)
+			}
+
+			m.Build(pctx, BuildParams{
+				Rule:        rule,
+				Description: "install " + fullInstallPath.Base(),
+				Output:      fullInstallPath,
+				Input:       srcPath,
+				Implicits:   implicitDeps,
+				OrderOnly:   orderOnlyDeps,
+				Default:     !m.Config().KatiEnabled(),
+				Args: map[string]string{
+					"extraCmds": extraCmds,
+				},
+			})
+		}
+
+		m.installFiles = append(m.installFiles, fullInstallPath)
+	}
+
+	m.packageFile(fullInstallPath, srcPath, executable)
+
+	m.checkbuildFiles = append(m.checkbuildFiles, srcPath)
+
+	return fullInstallPath
+}
+
+func (m *moduleContext) InstallSymlink(installPath InstallPath, name string, srcPath InstallPath) InstallPath {
+	fullInstallPath := installPath.Join(m, name)
+	m.module.base().hooks.runInstallHooks(m, srcPath, fullInstallPath, true)
+
+	relPath, err := filepath.Rel(path.Dir(fullInstallPath.String()), srcPath.String())
+	if err != nil {
+		panic(fmt.Sprintf("Unable to generate symlink between %q and %q: %s", fullInstallPath.Base(), srcPath.Base(), err))
+	}
+	if !m.skipInstall() {
+
+		if m.Config().KatiEnabled() {
+			// When creating the symlink rule in Soong but embedding in Make, write the rule to a
+			// makefile instead of directly to the ninja file so that main.mk can add the
+			// dependencies from the `required` property that are hard to resolve in Soong.
+			m.katiSymlinks = append(m.katiSymlinks, katiInstall{
+				from: srcPath,
+				to:   fullInstallPath,
+			})
+		} else {
+			// The symlink doesn't need updating when the target is modified, but we sometimes
+			// have a dependency on a symlink to a binary instead of to the binary directly, and
+			// the mtime of the symlink must be updated when the binary is modified, so use a
+			// normal dependency here instead of an order-only dependency.
+			m.Build(pctx, BuildParams{
+				Rule:        Symlink,
+				Description: "install symlink " + fullInstallPath.Base(),
+				Output:      fullInstallPath,
+				Input:       srcPath,
+				Default:     !m.Config().KatiEnabled(),
+				Args: map[string]string{
+					"fromPath": relPath,
+				},
+			})
+		}
+
+		m.installFiles = append(m.installFiles, fullInstallPath)
+		m.checkbuildFiles = append(m.checkbuildFiles, srcPath)
+	}
+
+	m.packagingSpecs = append(m.packagingSpecs, PackagingSpec{
+		relPathInPackage: Rel(m, fullInstallPath.PartitionDir(), fullInstallPath.String()),
+		srcPath:          nil,
+		symlinkTarget:    relPath,
+		executable:       false,
+		partition:        fullInstallPath.partition,
+	})
+
+	return fullInstallPath
+}
+
+// installPath/name -> absPath where absPath might be a path that is available only at runtime
+// (e.g. /apex/...)
+func (m *moduleContext) InstallAbsoluteSymlink(installPath InstallPath, name string, absPath string) InstallPath {
+	fullInstallPath := installPath.Join(m, name)
+	m.module.base().hooks.runInstallHooks(m, nil, fullInstallPath, true)
+
+	if !m.skipInstall() {
+		if m.Config().KatiEnabled() {
+			// When creating the symlink rule in Soong but embedding in Make, write the rule to a
+			// makefile instead of directly to the ninja file so that main.mk can add the
+			// dependencies from the `required` property that are hard to resolve in Soong.
+			m.katiSymlinks = append(m.katiSymlinks, katiInstall{
+				absFrom: absPath,
+				to:      fullInstallPath,
+			})
+		} else {
+			m.Build(pctx, BuildParams{
+				Rule:        Symlink,
+				Description: "install symlink " + fullInstallPath.Base() + " -> " + absPath,
+				Output:      fullInstallPath,
+				Default:     !m.Config().KatiEnabled(),
+				Args: map[string]string{
+					"fromPath": absPath,
+				},
+			})
+		}
+
+		m.installFiles = append(m.installFiles, fullInstallPath)
+	}
+
+	m.packagingSpecs = append(m.packagingSpecs, PackagingSpec{
+		relPathInPackage: Rel(m, fullInstallPath.PartitionDir(), fullInstallPath.String()),
+		srcPath:          nil,
+		symlinkTarget:    absPath,
+		executable:       false,
+		partition:        fullInstallPath.partition,
+	})
+
+	return fullInstallPath
+}
+
+func (m *moduleContext) CheckbuildFile(srcPath Path) {
+	m.checkbuildFiles = append(m.checkbuildFiles, srcPath)
+}
+
+func (m *moduleContext) blueprintModuleContext() blueprint.ModuleContext {
+	return m.bp
+}
+
+func (m *moduleContext) LicenseMetadataFile() Path {
+	return m.module.base().licenseMetadataFile
+}
+
+// Returns a list of paths expanded from globs and modules referenced using ":module" syntax.  The property must
+// be tagged with `android:"path" to support automatic source module dependency resolution.
+//
+// Deprecated: use PathsForModuleSrc or PathsForModuleSrcExcludes instead.
+func (m *moduleContext) ExpandSources(srcFiles, excludes []string) Paths {
+	return PathsForModuleSrcExcludes(m, srcFiles, excludes)
+}
+
+// Returns a single path expanded from globs and modules referenced using ":module" syntax.  The property must
+// be tagged with `android:"path" to support automatic source module dependency resolution.
+//
+// Deprecated: use PathForModuleSrc instead.
+func (m *moduleContext) ExpandSource(srcFile, _ string) Path {
+	return PathForModuleSrc(m, srcFile)
+}
+
+// Returns an optional single path expanded from globs and modules referenced using ":module" syntax if
+// the srcFile is non-nil.  The property must be tagged with `android:"path" to support automatic source module
+// dependency resolution.
+func (m *moduleContext) ExpandOptionalSource(srcFile *string, _ string) OptionalPath {
+	if srcFile != nil {
+		return OptionalPathForPath(PathForModuleSrc(m, *srcFile))
+	}
+	return OptionalPath{}
+}
+
+func (m *moduleContext) RequiredModuleNames() []string {
+	return m.module.RequiredModuleNames()
+}
+
+func (m *moduleContext) HostRequiredModuleNames() []string {
+	return m.module.HostRequiredModuleNames()
+}
+
+func (m *moduleContext) TargetRequiredModuleNames() []string {
+	return m.module.TargetRequiredModuleNames()
+}