251 lines
7.5 KiB
Go
251 lines
7.5 KiB
Go
// Copyright 2015 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 java
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// This file generates the final rules for compiling all Java. All properties related to
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// compiling should have been translated into javaBuilderFlags or another argument to the Transform*
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// functions.
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import (
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"path/filepath"
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"strings"
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"android/soong/android"
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"github.com/google/blueprint"
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_ "github.com/google/blueprint/bootstrap"
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)
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var (
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pctx = android.NewPackageContext("android/soong/java")
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// Compiling java is not conducive to proper dependency tracking. The path-matches-class-name
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// requirement leads to unpredictable generated source file names, and a single .java file
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// will get compiled into multiple .class files if it contains inner classes. To work around
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// this, all java rules write into separate directories and then a post-processing step lists
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// the files in the the directory into a list file that later rules depend on (and sometimes
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// read from directly using @<listfile>)
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javac = pctx.StaticRule("javac",
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blueprint.RuleParams{
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Command: `rm -rf "$outDir" && mkdir -p "$outDir" && ` +
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`$javacCmd -encoding UTF-8 $javacFlags $bootClasspath $classpath ` +
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`-extdirs "" -d $outDir @$out.rsp || ( rm -rf "$outDir"; exit 41 ) && ` +
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`find $outDir -name "*.class" > $out`,
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Rspfile: "$out.rsp",
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RspfileContent: "$in",
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Description: "javac $outDir",
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},
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"javacCmd", "javacFlags", "bootClasspath", "classpath", "outDir")
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jar = pctx.StaticRule("jar",
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blueprint.RuleParams{
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Command: `$jarCmd -o $out $jarArgs`,
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CommandDeps: []string{"$jarCmd"},
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Description: "jar $out",
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},
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"jarCmd", "jarArgs")
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dx = pctx.StaticRule("dx",
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blueprint.RuleParams{
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Command: `rm -rf "$outDir" && mkdir -p "$outDir" && ` +
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`$dxCmd --dex --output=$outDir $dxFlags $in || ( rm -rf "$outDir"; exit 41 ) && ` +
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`find "$outDir" -name "classes*.dex" > $out`,
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CommandDeps: []string{"$dxCmd"},
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Description: "dex $out",
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},
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"outDir", "dxFlags")
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jarjar = pctx.StaticRule("jarjar",
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blueprint.RuleParams{
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Command: "java -jar $jarjarCmd process $rulesFile $in $out",
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CommandDeps: []string{"$jarjarCmd", "$rulesFile"},
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Description: "jarjar $out",
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},
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"rulesFile")
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extractPrebuilt = pctx.StaticRule("extractPrebuilt",
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blueprint.RuleParams{
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Command: `rm -rf $outDir && unzip -qo $in -d $outDir && ` +
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`find $outDir -name "*.class" > $classFile && ` +
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`find $outDir -type f -a \! -name "*.class" -a \! -name "MANIFEST.MF" > $resourceFile || ` +
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`(rm -rf $outDir; exit 42)`,
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Description: "extract java prebuilt $outDir",
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},
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"outDir", "classFile", "resourceFile")
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)
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func init() {
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pctx.Import("github.com/google/blueprint/bootstrap")
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pctx.StaticVariable("commonJdkFlags", "-source 1.7 -target 1.7 -Xmaxerrs 9999999")
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pctx.StaticVariable("javacCmd", "javac -J-Xmx1024M $commonJdkFlags")
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pctx.StaticVariable("jarCmd", filepath.Join("${bootstrap.ToolDir}", "soong_zip"))
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pctx.HostBinToolVariable("dxCmd", "dx")
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pctx.HostJavaToolVariable("jarjarCmd", "jarjar.jar")
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}
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type javaBuilderFlags struct {
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javacFlags string
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dxFlags string
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bootClasspath string
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classpath string
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aidlFlags string
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}
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type jarSpec struct {
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fileList, dir android.Path
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}
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func (j jarSpec) soongJarArgs() string {
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return "-C " + j.dir.String() + " -l " + j.fileList.String()
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}
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func TransformJavaToClasses(ctx android.ModuleContext, srcFiles android.Paths, srcFileLists android.Paths,
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flags javaBuilderFlags, deps android.Paths) jarSpec {
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classDir := android.PathForModuleOut(ctx, "classes")
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classFileList := android.PathForModuleOut(ctx, "classes.list")
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javacFlags := flags.javacFlags + android.JoinWithPrefix(srcFileLists.Strings(), "@")
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deps = append(deps, srcFileLists...)
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ctx.ModuleBuild(pctx, android.ModuleBuildParams{
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Rule: javac,
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Output: classFileList,
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Inputs: srcFiles,
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Implicits: deps,
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Args: map[string]string{
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"javacFlags": javacFlags,
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"bootClasspath": flags.bootClasspath,
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"classpath": flags.classpath,
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"outDir": classDir.String(),
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},
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})
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return jarSpec{classFileList, classDir}
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}
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func TransformClassesToJar(ctx android.ModuleContext, classes []jarSpec,
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manifest android.OptionalPath) android.Path {
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outputFile := android.PathForModuleOut(ctx, "classes-full-debug.jar")
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deps := android.Paths{}
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jarArgs := []string{}
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for _, j := range classes {
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deps = append(deps, j.fileList)
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jarArgs = append(jarArgs, j.soongJarArgs())
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}
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if manifest.Valid() {
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deps = append(deps, manifest.Path())
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jarArgs = append(jarArgs, "-m "+manifest.String())
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}
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ctx.ModuleBuild(pctx, android.ModuleBuildParams{
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Rule: jar,
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Output: outputFile,
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Implicits: deps,
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Args: map[string]string{
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"jarArgs": strings.Join(jarArgs, " "),
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},
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})
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return outputFile
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}
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func TransformClassesJarToDex(ctx android.ModuleContext, classesJar android.Path,
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flags javaBuilderFlags) jarSpec {
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outDir := android.PathForModuleOut(ctx, "dex")
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outputFile := android.PathForModuleOut(ctx, "dex.filelist")
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ctx.ModuleBuild(pctx, android.ModuleBuildParams{
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Rule: dx,
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Output: outputFile,
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Input: classesJar,
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Args: map[string]string{
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"dxFlags": flags.dxFlags,
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"outDir": outDir.String(),
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},
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})
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return jarSpec{outputFile, outDir}
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}
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func TransformDexToJavaLib(ctx android.ModuleContext, resources []jarSpec,
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dexJarSpec jarSpec) android.Path {
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outputFile := android.PathForModuleOut(ctx, "javalib.jar")
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var deps android.Paths
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var jarArgs []string
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for _, j := range resources {
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deps = append(deps, j.fileList)
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jarArgs = append(jarArgs, j.soongJarArgs())
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}
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deps = append(deps, dexJarSpec.fileList)
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jarArgs = append(jarArgs, dexJarSpec.soongJarArgs())
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ctx.ModuleBuild(pctx, android.ModuleBuildParams{
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Rule: jar,
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Output: outputFile,
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Implicits: deps,
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Args: map[string]string{
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"jarArgs": strings.Join(jarArgs, " "),
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},
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})
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return outputFile
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}
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func TransformJarJar(ctx android.ModuleContext, classesJar android.Path, rulesFile android.Path) android.Path {
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outputFile := android.PathForModuleOut(ctx, "classes-jarjar.jar")
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ctx.ModuleBuild(pctx, android.ModuleBuildParams{
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Rule: jarjar,
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Output: outputFile,
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Input: classesJar,
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Implicit: rulesFile,
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Args: map[string]string{
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"rulesFile": rulesFile.String(),
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},
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})
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return outputFile
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}
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func TransformPrebuiltJarToClasses(ctx android.ModuleContext,
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prebuilt android.Path) (classJarSpec, resourceJarSpec jarSpec) {
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classDir := android.PathForModuleOut(ctx, "extracted/classes")
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classFileList := android.PathForModuleOut(ctx, "extracted/classes.list")
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resourceFileList := android.PathForModuleOut(ctx, "extracted/resources.list")
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ctx.ModuleBuild(pctx, android.ModuleBuildParams{
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Rule: extractPrebuilt,
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Outputs: android.WritablePaths{classFileList, resourceFileList},
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Input: prebuilt,
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Args: map[string]string{
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"outDir": classDir.String(),
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"classFile": classFileList.String(),
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"resourceFile": resourceFileList.String(),
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},
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})
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return jarSpec{classFileList, classDir}, jarSpec{resourceFileList, classDir}
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}
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