267 lines
8.6 KiB
Go
267 lines
8.6 KiB
Go
// Copyright 2017 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package python
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// This file contains the module types for building Python binary.
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import (
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"fmt"
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"path/filepath"
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"strings"
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"android/soong/android"
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)
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func init() {
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registerPythonBinaryComponents(android.InitRegistrationContext)
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}
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func registerPythonBinaryComponents(ctx android.RegistrationContext) {
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ctx.RegisterModuleType("python_binary_host", PythonBinaryHostFactory)
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}
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type BinaryProperties struct {
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// the name of the source file that is the main entry point of the program.
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// this file must also be listed in srcs.
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// If left unspecified, module name is used instead.
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// If name doesn’t match any filename in srcs, main must be specified.
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Main *string
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// set the name of the output binary.
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Stem *string `android:"arch_variant"`
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// append to the name of the output binary.
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Suffix *string `android:"arch_variant"`
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// list of compatibility suites (for example "cts", "vts") that the module should be
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// installed into.
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Test_suites []string `android:"arch_variant"`
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// whether to use `main` when starting the executable. The default is true, when set to
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// false it will act much like the normal `python` executable, but with the sources and
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// libraries automatically included in the PYTHONPATH.
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Autorun *bool `android:"arch_variant"`
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// Flag to indicate whether or not to create test config automatically. If AndroidTest.xml
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// doesn't exist next to the Android.bp, this attribute doesn't need to be set to true
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// explicitly.
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Auto_gen_config *bool
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}
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type PythonBinaryModule struct {
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PythonLibraryModule
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binaryProperties BinaryProperties
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// (.intermediate) module output path as installation source.
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installSource android.Path
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// Final installation path.
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installedDest android.Path
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androidMkSharedLibs []string
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// Aconfig files for all transitive deps. Also exposed via TransitiveDeclarationsInfo
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mergedAconfigFiles map[string]android.Paths
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}
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var _ android.AndroidMkEntriesProvider = (*PythonBinaryModule)(nil)
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var _ android.Module = (*PythonBinaryModule)(nil)
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type IntermPathProvider interface {
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IntermPathForModuleOut() android.OptionalPath
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}
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func NewBinary(hod android.HostOrDeviceSupported) *PythonBinaryModule {
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return &PythonBinaryModule{
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PythonLibraryModule: *newModule(hod, android.MultilibFirst),
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}
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}
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func PythonBinaryHostFactory() android.Module {
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return NewBinary(android.HostSupported).init()
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}
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func (p *PythonBinaryModule) init() android.Module {
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p.AddProperties(&p.properties, &p.protoProperties)
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p.AddProperties(&p.binaryProperties)
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android.InitAndroidArchModule(p, p.hod, p.multilib)
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android.InitDefaultableModule(p)
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return p
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}
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func (p *PythonBinaryModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
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p.PythonLibraryModule.GenerateAndroidBuildActions(ctx)
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p.buildBinary(ctx)
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p.installedDest = ctx.InstallFile(installDir(ctx, "bin", "", ""),
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p.installSource.Base(), p.installSource)
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android.CollectDependencyAconfigFiles(ctx, &p.mergedAconfigFiles)
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}
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func (p *PythonBinaryModule) buildBinary(ctx android.ModuleContext) {
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embeddedLauncher := p.isEmbeddedLauncherEnabled()
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depsSrcsZips := p.collectPathsFromTransitiveDeps(ctx, embeddedLauncher)
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main := ""
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if p.autorun() {
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main = p.getPyMainFile(ctx, p.srcsPathMappings)
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}
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var launcherPath android.OptionalPath
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if embeddedLauncher {
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ctx.VisitDirectDepsWithTag(launcherTag, func(m android.Module) {
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if provider, ok := m.(IntermPathProvider); ok {
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if launcherPath.Valid() {
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panic(fmt.Errorf("launcher path was found before: %q",
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launcherPath))
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}
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launcherPath = provider.IntermPathForModuleOut()
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}
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})
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}
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srcsZips := make(android.Paths, 0, len(depsSrcsZips)+1)
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if embeddedLauncher {
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srcsZips = append(srcsZips, p.precompiledSrcsZip)
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} else {
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srcsZips = append(srcsZips, p.srcsZip)
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}
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srcsZips = append(srcsZips, depsSrcsZips...)
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p.installSource = registerBuildActionForParFile(ctx, embeddedLauncher, launcherPath,
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p.getHostInterpreterName(ctx, p.properties.Actual_version),
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main, p.getStem(ctx), srcsZips)
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var sharedLibs []string
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// if embedded launcher is enabled, we need to collect the shared library dependencies of the
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// launcher
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for _, dep := range ctx.GetDirectDepsWithTag(launcherSharedLibTag) {
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sharedLibs = append(sharedLibs, ctx.OtherModuleName(dep))
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}
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p.androidMkSharedLibs = sharedLibs
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}
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func (p *PythonBinaryModule) AndroidMkEntries() []android.AndroidMkEntries {
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entries := android.AndroidMkEntries{OutputFile: android.OptionalPathForPath(p.installSource)}
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entries.Class = "EXECUTABLES"
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entries.ExtraEntries = append(entries.ExtraEntries,
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func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
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entries.AddCompatibilityTestSuites(p.binaryProperties.Test_suites...)
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})
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entries.Required = append(entries.Required, "libc++")
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entries.ExtraEntries = append(entries.ExtraEntries,
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func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
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path, file := filepath.Split(p.installedDest.String())
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stem := strings.TrimSuffix(file, filepath.Ext(file))
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entries.SetString("LOCAL_MODULE_SUFFIX", filepath.Ext(file))
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entries.SetString("LOCAL_MODULE_PATH", path)
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entries.SetString("LOCAL_MODULE_STEM", stem)
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entries.AddStrings("LOCAL_SHARED_LIBRARIES", p.androidMkSharedLibs...)
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entries.SetBool("LOCAL_CHECK_ELF_FILES", false)
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android.SetAconfigFileMkEntries(&p.ModuleBase, entries, p.mergedAconfigFiles)
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})
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return []android.AndroidMkEntries{entries}
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}
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func (p *PythonBinaryModule) DepsMutator(ctx android.BottomUpMutatorContext) {
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p.PythonLibraryModule.DepsMutator(ctx)
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if p.isEmbeddedLauncherEnabled() {
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p.AddDepsOnPythonLauncherAndStdlib(ctx, pythonLibTag, launcherTag, launcherSharedLibTag, p.autorun(), ctx.Target())
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}
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}
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// HostToolPath returns a path if appropriate such that this module can be used as a host tool,
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// fulfilling the android.HostToolProvider interface.
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func (p *PythonBinaryModule) HostToolPath() android.OptionalPath {
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// TODO: This should only be set when building host binaries -- tests built for device would be
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// setting this incorrectly.
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return android.OptionalPathForPath(p.installedDest)
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}
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// OutputFiles returns output files based on given tag, returns an error if tag is unsupported.
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func (p *PythonBinaryModule) OutputFiles(tag string) (android.Paths, error) {
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switch tag {
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case "":
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return android.Paths{p.installSource}, nil
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default:
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return nil, fmt.Errorf("unsupported module reference tag %q", tag)
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}
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}
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func (p *PythonBinaryModule) isEmbeddedLauncherEnabled() bool {
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return Bool(p.properties.Embedded_launcher)
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}
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func (b *PythonBinaryModule) autorun() bool {
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return BoolDefault(b.binaryProperties.Autorun, true)
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}
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// get host interpreter name.
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func (p *PythonBinaryModule) getHostInterpreterName(ctx android.ModuleContext,
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actualVersion string) string {
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var interp string
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switch actualVersion {
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case pyVersion2:
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interp = "python2.7"
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case pyVersion3:
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interp = "python3"
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default:
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panic(fmt.Errorf("unknown Python actualVersion: %q for module: %q.",
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actualVersion, ctx.ModuleName()))
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}
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return interp
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}
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// find main program path within runfiles tree.
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func (p *PythonBinaryModule) getPyMainFile(ctx android.ModuleContext,
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srcsPathMappings []pathMapping) string {
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var main string
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if String(p.binaryProperties.Main) == "" {
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main = ctx.ModuleName() + pyExt
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} else {
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main = String(p.binaryProperties.Main)
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}
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for _, path := range srcsPathMappings {
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if main == path.src.Rel() {
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return path.dest
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}
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}
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ctx.PropertyErrorf("main", "%q is not listed in srcs.", main)
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return ""
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}
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func (p *PythonBinaryModule) getStem(ctx android.ModuleContext) string {
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stem := ctx.ModuleName()
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if String(p.binaryProperties.Stem) != "" {
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stem = String(p.binaryProperties.Stem)
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}
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return stem + String(p.binaryProperties.Suffix)
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}
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func installDir(ctx android.ModuleContext, dir, dir64, relative string) android.InstallPath {
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if ctx.Arch().ArchType.Multilib == "lib64" && dir64 != "" {
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dir = dir64
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}
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if !ctx.Host() && ctx.Config().HasMultilibConflict(ctx.Arch().ArchType) {
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dir = filepath.Join(dir, ctx.Arch().ArchType.String())
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}
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return android.PathForModuleInstall(ctx, dir, relative)
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}
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