a479d943dd
Set a system property to enable Android specific transformer that drops
UnsupportedAppUsage annotation for repackaged classes to avoid adding
unneeded hidden api symbols on jarjar.
Bug: 146418363
Test: m, manual diff hiddenapi-flags.csv
Exempt-From-Owner-Approval: patch approved by owner
Change-Id: I10b49feb15257301574162b5d389cbc30277f672
Merged-In: I10b49feb15257301574162b5d389cbc30277f672
(cherry picked from commit 762d9f38af)
610 lines
21 KiB
Go
610 lines
21 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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"strconv"
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"strings"
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"github.com/google/blueprint"
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"github.com/google/blueprint/proptools"
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"android/soong/android"
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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 are combined into a .jar file
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// (if the rule produces .class files) or a .srcjar file (if the rule produces .java files).
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// .srcjar files are unzipped into a temporary directory when compiled with javac.
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javac = pctx.AndroidRemoteStaticRule("javac", android.RemoteRuleSupports{Goma: true, RBE: true, RBEFlag: android.RBE_JAVAC},
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blueprint.RuleParams{
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Command: `rm -rf "$outDir" "$annoDir" "$srcJarDir" && mkdir -p "$outDir" "$annoDir" "$srcJarDir" && ` +
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`${config.ZipSyncCmd} -d $srcJarDir -l $srcJarDir/list -f "*.java" $srcJars && ` +
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`(if [ -s $srcJarDir/list ] || [ -s $out.rsp ] ; then ` +
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`${config.SoongJavacWrapper} ${config.JavacWrapper}${config.JavacCmd} ` +
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`${config.JavacHeapFlags} ${config.JavacVmFlags} ${config.CommonJdkFlags} ` +
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`$processorpath $processor $javacFlags $bootClasspath $classpath ` +
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`-source $javaVersion -target $javaVersion ` +
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`-d $outDir -s $annoDir @$out.rsp @$srcJarDir/list ; fi ) && ` +
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`${config.SoongZipCmd} -jar -o $out -C $outDir -D $outDir && ` +
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`rm -rf "$srcJarDir"`,
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CommandDeps: []string{
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"${config.JavacCmd}",
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"${config.SoongZipCmd}",
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"${config.ZipSyncCmd}",
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},
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CommandOrderOnly: []string{"${config.SoongJavacWrapper}"},
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Rspfile: "$out.rsp",
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RspfileContent: "$in",
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},
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"javacFlags", "bootClasspath", "classpath", "processorpath", "processor", "srcJars", "srcJarDir",
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"outDir", "annoDir", "javaVersion")
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_ = pctx.VariableFunc("kytheCorpus",
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func(ctx android.PackageVarContext) string { return ctx.Config().XrefCorpusName() })
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_ = pctx.VariableFunc("kytheCuEncoding",
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func(ctx android.PackageVarContext) string { return ctx.Config().XrefCuEncoding() })
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_ = pctx.SourcePathVariable("kytheVnames", "build/soong/vnames.json")
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// Run it with -add-opens=java.base/java.nio=ALL-UNNAMED to avoid JDK9's warning about
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// "Illegal reflective access by com.google.protobuf.Utf8$UnsafeProcessor ...
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// to field java.nio.Buffer.address"
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kytheExtract = pctx.AndroidStaticRule("kythe",
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blueprint.RuleParams{
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Command: `${config.ZipSyncCmd} -d $srcJarDir ` +
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`-l $srcJarDir/list -f "*.java" $srcJars && ` +
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`( [ ! -s $srcJarDir/list -a ! -s $out.rsp ] || ` +
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`KYTHE_ROOT_DIRECTORY=. KYTHE_OUTPUT_FILE=$out ` +
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`KYTHE_CORPUS=${kytheCorpus} ` +
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`KYTHE_VNAMES=${kytheVnames} ` +
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`KYTHE_KZIP_ENCODING=${kytheCuEncoding} ` +
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`${config.SoongJavacWrapper} ${config.JavaCmd} ` +
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`--add-opens=java.base/java.nio=ALL-UNNAMED ` +
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`-jar ${config.JavaKytheExtractorJar} ` +
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`${config.JavacHeapFlags} ${config.CommonJdkFlags} ` +
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`$processorpath $processor $javacFlags $bootClasspath $classpath ` +
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`-source $javaVersion -target $javaVersion ` +
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`-d $outDir -s $annoDir @$out.rsp @$srcJarDir/list)`,
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CommandDeps: []string{
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"${config.JavaCmd}",
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"${config.JavaKytheExtractorJar}",
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"${kytheVnames}",
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"${config.ZipSyncCmd}",
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},
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CommandOrderOnly: []string{"${config.SoongJavacWrapper}"},
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Rspfile: "$out.rsp",
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RspfileContent: "$in",
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},
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"javacFlags", "bootClasspath", "classpath", "processorpath", "processor", "srcJars", "srcJarDir",
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"outDir", "annoDir", "javaVersion")
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turbine = pctx.AndroidStaticRule("turbine",
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blueprint.RuleParams{
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Command: `rm -rf "$outDir" && mkdir -p "$outDir" && ` +
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`${config.JavaCmd} ${config.JavaVmFlags} -jar ${config.TurbineJar} --output $out.tmp ` +
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`--temp_dir "$outDir" --sources @$out.rsp --source_jars $srcJars ` +
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`--javacopts ${config.CommonJdkFlags} ` +
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`$javacFlags -source $javaVersion -target $javaVersion -- $bootClasspath $classpath && ` +
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`${config.Ziptime} $out.tmp && ` +
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`(if cmp -s $out.tmp $out ; then rm $out.tmp ; else mv $out.tmp $out ; fi )`,
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CommandDeps: []string{
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"${config.TurbineJar}",
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"${config.JavaCmd}",
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"${config.Ziptime}",
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},
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Rspfile: "$out.rsp",
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RspfileContent: "$in",
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Restat: true,
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},
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"javacFlags", "bootClasspath", "classpath", "srcJars", "outDir", "javaVersion")
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jar = pctx.AndroidStaticRule("jar",
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blueprint.RuleParams{
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Command: `${config.SoongZipCmd} -jar -o $out @$out.rsp`,
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CommandDeps: []string{"${config.SoongZipCmd}"},
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Rspfile: "$out.rsp",
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RspfileContent: "$jarArgs",
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},
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"jarArgs")
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zip = pctx.AndroidStaticRule("zip",
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blueprint.RuleParams{
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Command: `${config.SoongZipCmd} -o $out @$out.rsp`,
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CommandDeps: []string{"${config.SoongZipCmd}"},
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Rspfile: "$out.rsp",
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RspfileContent: "$jarArgs",
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},
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"jarArgs")
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combineJar = pctx.AndroidStaticRule("combineJar",
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blueprint.RuleParams{
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Command: `${config.MergeZipsCmd} --ignore-duplicates -j $jarArgs $out $in`,
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CommandDeps: []string{"${config.MergeZipsCmd}"},
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},
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"jarArgs")
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jarjar = pctx.AndroidStaticRule("jarjar",
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blueprint.RuleParams{
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Command: "${config.JavaCmd} ${config.JavaVmFlags}" +
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// b/146418363 Enable Android specific jarjar transformer to drop compat annotations
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// for newly repackaged classes. Dropping @UnsupportedAppUsage on repackaged classes
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// avoids adding new hiddenapis after jarjar'ing.
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" -DremoveAndroidCompatAnnotations=true" +
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" -jar ${config.JarjarCmd} process $rulesFile $in $out",
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CommandDeps: []string{"${config.JavaCmd}", "${config.JarjarCmd}", "$rulesFile"},
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},
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"rulesFile")
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packageCheck = pctx.AndroidStaticRule("packageCheck",
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blueprint.RuleParams{
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Command: "rm -f $out && " +
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"${config.PackageCheckCmd} $in $packages && " +
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"touch $out",
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CommandDeps: []string{"${config.PackageCheckCmd}"},
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},
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"packages")
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jetifier = pctx.AndroidStaticRule("jetifier",
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blueprint.RuleParams{
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Command: "${config.JavaCmd} ${config.JavaVmFlags} -jar ${config.JetifierJar} -l error -o $out -i $in",
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CommandDeps: []string{"${config.JavaCmd}", "${config.JetifierJar}"},
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},
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)
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zipalign = pctx.AndroidStaticRule("zipalign",
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blueprint.RuleParams{
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Command: "if ! ${config.ZipAlign} -c -p 4 $in > /dev/null; then " +
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"${config.ZipAlign} -f -p 4 $in $out; " +
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"else " +
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"cp -f $in $out; " +
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"fi",
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CommandDeps: []string{"${config.ZipAlign}"},
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},
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)
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)
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func init() {
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pctx.Import("android/soong/android")
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pctx.Import("android/soong/java/config")
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}
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type javaBuilderFlags struct {
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javacFlags string
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bootClasspath classpath
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classpath classpath
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java9Classpath classpath
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processorPath classpath
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processor string
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systemModules *systemModules
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aidlFlags string
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aidlDeps android.Paths
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javaVersion javaVersion
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errorProneExtraJavacFlags string
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errorProneProcessorPath classpath
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kotlincFlags string
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kotlincClasspath classpath
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proto android.ProtoFlags
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}
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func TransformJavaToClasses(ctx android.ModuleContext, outputFile android.WritablePath, shardIdx int,
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srcFiles, srcJars android.Paths, flags javaBuilderFlags, deps android.Paths) {
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// Compile java sources into .class files
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desc := "javac"
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if shardIdx >= 0 {
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desc += strconv.Itoa(shardIdx)
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}
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transformJavaToClasses(ctx, outputFile, shardIdx, srcFiles, srcJars, flags, deps, "javac", desc)
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}
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func RunErrorProne(ctx android.ModuleContext, outputFile android.WritablePath,
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srcFiles, srcJars android.Paths, flags javaBuilderFlags) {
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flags.processorPath = append(flags.errorProneProcessorPath, flags.processorPath...)
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if len(flags.errorProneExtraJavacFlags) > 0 {
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if len(flags.javacFlags) > 0 {
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flags.javacFlags += " " + flags.errorProneExtraJavacFlags
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} else {
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flags.javacFlags = flags.errorProneExtraJavacFlags
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}
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}
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transformJavaToClasses(ctx, outputFile, -1, srcFiles, srcJars, flags, nil,
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"errorprone", "errorprone")
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}
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// Emits the rule to generate Xref input file (.kzip file) for the given set of source files and source jars
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// to compile with given set of builder flags, etc.
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func emitXrefRule(ctx android.ModuleContext, xrefFile android.WritablePath, idx int,
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srcFiles, srcJars android.Paths,
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flags javaBuilderFlags, deps android.Paths) {
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deps = append(deps, srcJars...)
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classpath := flags.classpath
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var bootClasspath string
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if flags.javaVersion.usesJavaModules() {
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var systemModuleDeps android.Paths
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bootClasspath, systemModuleDeps = flags.systemModules.FormJavaSystemModulesPath(ctx.Device())
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deps = append(deps, systemModuleDeps...)
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classpath = append(flags.java9Classpath, classpath...)
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} else {
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deps = append(deps, flags.bootClasspath...)
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if len(flags.bootClasspath) == 0 && ctx.Device() {
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// explicitly specify -bootclasspath "" if the bootclasspath is empty to
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// ensure java does not fall back to the default bootclasspath.
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bootClasspath = `-bootclasspath ""`
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} else {
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bootClasspath = flags.bootClasspath.FormJavaClassPath("-bootclasspath")
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}
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}
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deps = append(deps, classpath...)
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deps = append(deps, flags.processorPath...)
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processor := "-proc:none"
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if flags.processor != "" {
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processor = "-processor " + flags.processor
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}
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intermediatesDir := "xref"
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if idx >= 0 {
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intermediatesDir += strconv.Itoa(idx)
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}
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ctx.Build(pctx,
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android.BuildParams{
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Rule: kytheExtract,
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Description: "Xref Java extractor",
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Output: xrefFile,
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Inputs: srcFiles,
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Implicits: deps,
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Args: map[string]string{
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"annoDir": android.PathForModuleOut(ctx, intermediatesDir, "anno").String(),
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"bootClasspath": bootClasspath,
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"classpath": classpath.FormJavaClassPath("-classpath"),
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"javacFlags": flags.javacFlags,
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"javaVersion": flags.javaVersion.String(),
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"outDir": android.PathForModuleOut(ctx, "javac", "classes.xref").String(),
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"processorpath": flags.processorPath.FormJavaClassPath("-processorpath"),
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"processor": processor,
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"srcJarDir": android.PathForModuleOut(ctx, intermediatesDir, "srcjars.xref").String(),
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"srcJars": strings.Join(srcJars.Strings(), " "),
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},
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})
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}
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func TransformJavaToHeaderClasses(ctx android.ModuleContext, outputFile android.WritablePath,
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srcFiles, srcJars android.Paths, flags javaBuilderFlags) {
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var deps android.Paths
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deps = append(deps, srcJars...)
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classpath := flags.classpath
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var bootClasspath string
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if flags.javaVersion.usesJavaModules() {
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var systemModuleDeps android.Paths
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bootClasspath, systemModuleDeps = flags.systemModules.FormTurbineSystemModulesPath(ctx.Device())
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deps = append(deps, systemModuleDeps...)
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classpath = append(flags.java9Classpath, classpath...)
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} else {
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deps = append(deps, flags.bootClasspath...)
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if len(flags.bootClasspath) == 0 && ctx.Device() {
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// explicitly specify -bootclasspath "" if the bootclasspath is empty to
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// ensure turbine does not fall back to the default bootclasspath.
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bootClasspath = `--bootclasspath ""`
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} else {
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bootClasspath = flags.bootClasspath.FormTurbineClassPath("--bootclasspath ")
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}
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}
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deps = append(deps, classpath...)
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deps = append(deps, flags.processorPath...)
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ctx.Build(pctx, android.BuildParams{
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Rule: turbine,
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Description: "turbine",
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Output: outputFile,
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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": flags.javacFlags,
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"bootClasspath": bootClasspath,
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"srcJars": strings.Join(srcJars.Strings(), " "),
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"classpath": classpath.FormTurbineClassPath("--classpath "),
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"outDir": android.PathForModuleOut(ctx, "turbine", "classes").String(),
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"javaVersion": flags.javaVersion.String(),
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},
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})
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}
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// transformJavaToClasses takes source files and converts them to a jar containing .class files.
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// srcFiles is a list of paths to sources, srcJars is a list of paths to jar files that contain
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// sources. flags contains various command line flags to be passed to the compiler.
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//
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// This method may be used for different compilers, including javac and Error Prone. The rule
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// argument specifies which command line to use and desc sets the description of the rule that will
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// be printed at build time. The stem argument provides the file name of the output jar, and
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// suffix will be appended to various intermediate files and directories to avoid collisions when
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// this function is called twice in the same module directory.
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func transformJavaToClasses(ctx android.ModuleContext, outputFile android.WritablePath,
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shardIdx int, srcFiles, srcJars android.Paths,
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flags javaBuilderFlags, deps android.Paths,
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intermediatesDir, desc string) {
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deps = append(deps, srcJars...)
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classpath := flags.classpath
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var bootClasspath string
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if flags.javaVersion.usesJavaModules() {
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var systemModuleDeps android.Paths
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bootClasspath, systemModuleDeps = flags.systemModules.FormJavaSystemModulesPath(ctx.Device())
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deps = append(deps, systemModuleDeps...)
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classpath = append(flags.java9Classpath, classpath...)
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} else {
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deps = append(deps, flags.bootClasspath...)
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if len(flags.bootClasspath) == 0 && ctx.Device() {
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// explicitly specify -bootclasspath "" if the bootclasspath is empty to
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// ensure java does not fall back to the default bootclasspath.
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bootClasspath = `-bootclasspath ""`
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} else {
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bootClasspath = flags.bootClasspath.FormJavaClassPath("-bootclasspath")
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}
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}
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deps = append(deps, classpath...)
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deps = append(deps, flags.processorPath...)
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processor := "-proc:none"
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if flags.processor != "" {
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processor = "-processor " + flags.processor
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}
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srcJarDir := "srcjars"
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outDir := "classes"
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annoDir := "anno"
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if shardIdx >= 0 {
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shardDir := "shard" + strconv.Itoa(shardIdx)
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srcJarDir = filepath.Join(shardDir, srcJarDir)
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outDir = filepath.Join(shardDir, outDir)
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annoDir = filepath.Join(shardDir, annoDir)
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}
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ctx.Build(pctx, android.BuildParams{
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Rule: javac,
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Description: desc,
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Output: outputFile,
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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": flags.javacFlags,
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"bootClasspath": bootClasspath,
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"classpath": classpath.FormJavaClassPath("-classpath"),
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"processorpath": flags.processorPath.FormJavaClassPath("-processorpath"),
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"processor": processor,
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"srcJars": strings.Join(srcJars.Strings(), " "),
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"srcJarDir": android.PathForModuleOut(ctx, intermediatesDir, srcJarDir).String(),
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"outDir": android.PathForModuleOut(ctx, intermediatesDir, outDir).String(),
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"annoDir": android.PathForModuleOut(ctx, intermediatesDir, annoDir).String(),
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"javaVersion": flags.javaVersion.String(),
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},
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})
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}
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func TransformResourcesToJar(ctx android.ModuleContext, outputFile android.WritablePath,
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jarArgs []string, deps android.Paths) {
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ctx.Build(pctx, android.BuildParams{
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Rule: jar,
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Description: "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(proptools.NinjaAndShellEscapeList(jarArgs), " "),
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},
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})
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}
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func TransformJarsToJar(ctx android.ModuleContext, outputFile android.WritablePath, desc string,
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jars android.Paths, manifest android.OptionalPath, stripDirEntries bool, filesToStrip []string,
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dirsToStrip []string) {
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var deps android.Paths
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var jarArgs []string
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|
if manifest.Valid() {
|
|
jarArgs = append(jarArgs, "-m ", manifest.String())
|
|
deps = append(deps, manifest.Path())
|
|
}
|
|
|
|
for _, dir := range dirsToStrip {
|
|
jarArgs = append(jarArgs, "-stripDir ", dir)
|
|
}
|
|
|
|
for _, file := range filesToStrip {
|
|
jarArgs = append(jarArgs, "-stripFile ", file)
|
|
}
|
|
|
|
// Remove any module-info.class files that may have come from prebuilt jars, they cause problems
|
|
// for downstream tools like desugar.
|
|
jarArgs = append(jarArgs, "-stripFile module-info.class")
|
|
|
|
if stripDirEntries {
|
|
jarArgs = append(jarArgs, "-D")
|
|
}
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: combineJar,
|
|
Description: desc,
|
|
Output: outputFile,
|
|
Inputs: jars,
|
|
Implicits: deps,
|
|
Args: map[string]string{
|
|
"jarArgs": strings.Join(jarArgs, " "),
|
|
},
|
|
})
|
|
}
|
|
|
|
func TransformJarJar(ctx android.ModuleContext, outputFile android.WritablePath,
|
|
classesJar android.Path, rulesFile android.Path) {
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: jarjar,
|
|
Description: "jarjar",
|
|
Output: outputFile,
|
|
Input: classesJar,
|
|
Implicit: rulesFile,
|
|
Args: map[string]string{
|
|
"rulesFile": rulesFile.String(),
|
|
},
|
|
})
|
|
}
|
|
|
|
func CheckJarPackages(ctx android.ModuleContext, outputFile android.WritablePath,
|
|
classesJar android.Path, permittedPackages []string) {
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: packageCheck,
|
|
Description: "packageCheck",
|
|
Output: outputFile,
|
|
Input: classesJar,
|
|
Args: map[string]string{
|
|
"packages": strings.Join(permittedPackages, " "),
|
|
},
|
|
})
|
|
}
|
|
|
|
func TransformJetifier(ctx android.ModuleContext, outputFile android.WritablePath,
|
|
inputFile android.Path) {
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: jetifier,
|
|
Description: "jetifier",
|
|
Output: outputFile,
|
|
Input: inputFile,
|
|
})
|
|
}
|
|
|
|
func GenerateMainClassManifest(ctx android.ModuleContext, outputFile android.WritablePath, mainClass string) {
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: android.WriteFile,
|
|
Description: "manifest",
|
|
Output: outputFile,
|
|
Args: map[string]string{
|
|
"content": "Main-Class: " + mainClass + "\n",
|
|
},
|
|
})
|
|
}
|
|
|
|
func TransformZipAlign(ctx android.ModuleContext, outputFile android.WritablePath, inputFile android.Path) {
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: zipalign,
|
|
Description: "align",
|
|
Input: inputFile,
|
|
Output: outputFile,
|
|
})
|
|
}
|
|
|
|
type classpath android.Paths
|
|
|
|
func (x *classpath) formJoinedClassPath(optName string, sep string) string {
|
|
if optName != "" && !strings.HasSuffix(optName, "=") && !strings.HasSuffix(optName, " ") {
|
|
optName += " "
|
|
}
|
|
if len(*x) > 0 {
|
|
return optName + strings.Join(x.Strings(), sep)
|
|
} else {
|
|
return ""
|
|
}
|
|
}
|
|
func (x *classpath) FormJavaClassPath(optName string) string {
|
|
return x.formJoinedClassPath(optName, ":")
|
|
}
|
|
|
|
func (x *classpath) FormTurbineClassPath(optName string) string {
|
|
return x.formJoinedClassPath(optName, " ")
|
|
}
|
|
|
|
// FormRepeatedClassPath returns a list of arguments with the given optName prefixed to each element of the classpath.
|
|
func (x *classpath) FormRepeatedClassPath(optName string) []string {
|
|
if x == nil || *x == nil {
|
|
return nil
|
|
}
|
|
flags := make([]string, len(*x))
|
|
for i, v := range *x {
|
|
flags[i] = optName + v.String()
|
|
}
|
|
|
|
return flags
|
|
}
|
|
|
|
// Convert a classpath to an android.Paths
|
|
func (x *classpath) Paths() android.Paths {
|
|
return append(android.Paths(nil), (*x)...)
|
|
}
|
|
|
|
func (x *classpath) Strings() []string {
|
|
if x == nil {
|
|
return nil
|
|
}
|
|
ret := make([]string, len(*x))
|
|
for i, path := range *x {
|
|
ret[i] = path.String()
|
|
}
|
|
return ret
|
|
}
|
|
|
|
type systemModules struct {
|
|
dir android.Path
|
|
deps android.Paths
|
|
}
|
|
|
|
// Returns a --system argument in the form javac expects with -source 1.9 and the list of files to
|
|
// depend on. If forceEmpty is true, returns --system=none if the list is empty to ensure javac
|
|
// does not fall back to the default system modules.
|
|
func (x *systemModules) FormJavaSystemModulesPath(forceEmpty bool) (string, android.Paths) {
|
|
if x != nil {
|
|
return "--system=" + x.dir.String(), x.deps
|
|
} else if forceEmpty {
|
|
return "--system=none", nil
|
|
} else {
|
|
return "", nil
|
|
}
|
|
}
|
|
|
|
// Returns a --system argument in the form turbine expects with -source 1.9 and the list of files to
|
|
// depend on. If forceEmpty is true, returns --bootclasspath "" if the list is empty to ensure turbine
|
|
// does not fall back to the default bootclasspath.
|
|
func (x *systemModules) FormTurbineSystemModulesPath(forceEmpty bool) (string, android.Paths) {
|
|
if x != nil {
|
|
return "--system " + x.dir.String(), x.deps
|
|
} else if forceEmpty {
|
|
return `--bootclasspath ""`, nil
|
|
} else {
|
|
return "", nil
|
|
}
|
|
}
|