f61766e987
Follow Bazel by using turbine instead of kapt to run annotation processors. This still requires using kapt to generate java stubs of kotlin soruces, then uses turbine to run annotation processors on the java stubs and any java sources to generate sources and resources, and passes the annotation processor generated sources to kotlinc and javac. Bug: 225013372 Test: m checkbuild Test: TestKapt Change-Id: I9c6fc496a9fba64658bb062538bc5f7b9478b07a
254 lines
10 KiB
Go
254 lines
10 KiB
Go
// Copyright 2019 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 java
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/base64"
|
|
"encoding/binary"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"android/soong/android"
|
|
|
|
"github.com/google/blueprint"
|
|
)
|
|
|
|
var kotlinc = pctx.AndroidRemoteStaticRule("kotlinc", android.RemoteRuleSupports{Goma: true},
|
|
blueprint.RuleParams{
|
|
Command: `rm -rf "$classesDir" "$srcJarDir" "$kotlinBuildFile" "$emptyDir" && ` +
|
|
`mkdir -p "$classesDir" "$srcJarDir" "$emptyDir" && ` +
|
|
`${config.ZipSyncCmd} -d $srcJarDir -l $srcJarDir/list -f "*.java" $srcJars && ` +
|
|
`${config.GenKotlinBuildFileCmd} --classpath "$classpath" --name "$name"` +
|
|
` --out_dir "$classesDir" --srcs "$out.rsp" --srcs "$srcJarDir/list"` +
|
|
` $commonSrcFilesArg --out "$kotlinBuildFile" && ` +
|
|
`${config.KotlincCmd} ${config.KotlincGlobalFlags} ` +
|
|
`${config.KotlincSuppressJDK9Warnings} ${config.JavacHeapFlags} ` +
|
|
`$kotlincFlags -jvm-target $kotlinJvmTarget -Xbuild-file=$kotlinBuildFile ` +
|
|
`-kotlin-home $emptyDir && ` +
|
|
`${config.SoongZipCmd} -jar -o $out -C $classesDir -D $classesDir && ` +
|
|
`rm -rf "$srcJarDir"`,
|
|
CommandDeps: []string{
|
|
"${config.KotlincCmd}",
|
|
"${config.KotlinCompilerJar}",
|
|
"${config.KotlinPreloaderJar}",
|
|
"${config.KotlinReflectJar}",
|
|
"${config.KotlinScriptRuntimeJar}",
|
|
"${config.KotlinStdlibJar}",
|
|
"${config.KotlinTrove4jJar}",
|
|
"${config.KotlinAnnotationJar}",
|
|
"${config.GenKotlinBuildFileCmd}",
|
|
"${config.SoongZipCmd}",
|
|
"${config.ZipSyncCmd}",
|
|
},
|
|
Rspfile: "$out.rsp",
|
|
RspfileContent: `$in`,
|
|
},
|
|
"kotlincFlags", "classpath", "srcJars", "commonSrcFilesArg", "srcJarDir", "classesDir",
|
|
"kotlinJvmTarget", "kotlinBuildFile", "emptyDir", "name")
|
|
|
|
func kotlinCommonSrcsList(ctx android.ModuleContext, commonSrcFiles android.Paths) android.OptionalPath {
|
|
if len(commonSrcFiles) > 0 {
|
|
// The list of common_srcs may be too long to put on the command line, but
|
|
// we can't use the rsp file because it is already being used for srcs.
|
|
// Insert a second rule to write out the list of resources to a file.
|
|
commonSrcsList := android.PathForModuleOut(ctx, "kotlinc_common_srcs.list")
|
|
rule := android.NewRuleBuilder(pctx, ctx)
|
|
rule.Command().Text("cp").
|
|
FlagWithRspFileInputList("", commonSrcsList.ReplaceExtension(ctx, "rsp"), commonSrcFiles).
|
|
Output(commonSrcsList)
|
|
rule.Build("kotlin_common_srcs_list", "kotlin common_srcs list")
|
|
return android.OptionalPathForPath(commonSrcsList)
|
|
}
|
|
return android.OptionalPath{}
|
|
}
|
|
|
|
// kotlinCompile takes .java and .kt sources and srcJars, and compiles the .kt sources into a classes jar in outputFile.
|
|
func kotlinCompile(ctx android.ModuleContext, outputFile android.WritablePath,
|
|
srcFiles, commonSrcFiles, srcJars android.Paths,
|
|
flags javaBuilderFlags) {
|
|
|
|
var deps android.Paths
|
|
deps = append(deps, flags.kotlincClasspath...)
|
|
deps = append(deps, flags.kotlincDeps...)
|
|
deps = append(deps, srcJars...)
|
|
deps = append(deps, commonSrcFiles...)
|
|
|
|
kotlinName := filepath.Join(ctx.ModuleDir(), ctx.ModuleSubDir(), ctx.ModuleName())
|
|
kotlinName = strings.ReplaceAll(kotlinName, "/", "__")
|
|
|
|
commonSrcsList := kotlinCommonSrcsList(ctx, commonSrcFiles)
|
|
commonSrcFilesArg := ""
|
|
if commonSrcsList.Valid() {
|
|
deps = append(deps, commonSrcsList.Path())
|
|
commonSrcFilesArg = "--common_srcs " + commonSrcsList.String()
|
|
}
|
|
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: kotlinc,
|
|
Description: "kotlinc",
|
|
Output: outputFile,
|
|
Inputs: srcFiles,
|
|
Implicits: deps,
|
|
Args: map[string]string{
|
|
"classpath": flags.kotlincClasspath.FormJavaClassPath(""),
|
|
"kotlincFlags": flags.kotlincFlags,
|
|
"commonSrcFilesArg": commonSrcFilesArg,
|
|
"srcJars": strings.Join(srcJars.Strings(), " "),
|
|
"classesDir": android.PathForModuleOut(ctx, "kotlinc", "classes").String(),
|
|
"srcJarDir": android.PathForModuleOut(ctx, "kotlinc", "srcJars").String(),
|
|
"kotlinBuildFile": android.PathForModuleOut(ctx, "kotlinc-build.xml").String(),
|
|
"emptyDir": android.PathForModuleOut(ctx, "kotlinc", "empty").String(),
|
|
// http://b/69160377 kotlinc only supports -jvm-target 1.6 and 1.8
|
|
"kotlinJvmTarget": "1.8",
|
|
"name": kotlinName,
|
|
},
|
|
})
|
|
}
|
|
|
|
var kaptStubs = pctx.AndroidRemoteStaticRule("kaptStubs", android.RemoteRuleSupports{Goma: true},
|
|
blueprint.RuleParams{
|
|
Command: `rm -rf "$srcJarDir" "$kotlinBuildFile" "$kaptDir" && ` +
|
|
`mkdir -p "$srcJarDir" "$kaptDir/sources" "$kaptDir/classes" && ` +
|
|
`${config.ZipSyncCmd} -d $srcJarDir -l $srcJarDir/list -f "*.java" $srcJars && ` +
|
|
`${config.GenKotlinBuildFileCmd} --classpath "$classpath" --name "$name"` +
|
|
` --srcs "$out.rsp" --srcs "$srcJarDir/list"` +
|
|
` $commonSrcFilesArg --out "$kotlinBuildFile" && ` +
|
|
`${config.KotlincCmd} ${config.KotlincGlobalFlags} ` +
|
|
`${config.KaptSuppressJDK9Warnings} ${config.KotlincSuppressJDK9Warnings} ` +
|
|
`${config.JavacHeapFlags} $kotlincFlags -Xplugin=${config.KotlinKaptJar} ` +
|
|
`-P plugin:org.jetbrains.kotlin.kapt3:sources=$kaptDir/sources ` +
|
|
`-P plugin:org.jetbrains.kotlin.kapt3:classes=$kaptDir/classes ` +
|
|
`-P plugin:org.jetbrains.kotlin.kapt3:stubs=$kaptDir/stubs ` +
|
|
`-P plugin:org.jetbrains.kotlin.kapt3:correctErrorTypes=true ` +
|
|
`-P plugin:org.jetbrains.kotlin.kapt3:aptMode=stubs ` +
|
|
`-P plugin:org.jetbrains.kotlin.kapt3:javacArguments=$encodedJavacFlags ` +
|
|
`$kaptProcessorPath ` +
|
|
`$kaptProcessor ` +
|
|
`-Xbuild-file=$kotlinBuildFile && ` +
|
|
`${config.SoongZipCmd} -jar -o $out -C $kaptDir/stubs -D $kaptDir/stubs && ` +
|
|
`rm -rf "$srcJarDir"`,
|
|
CommandDeps: []string{
|
|
"${config.KotlincCmd}",
|
|
"${config.KotlinCompilerJar}",
|
|
"${config.KotlinKaptJar}",
|
|
"${config.GenKotlinBuildFileCmd}",
|
|
"${config.SoongZipCmd}",
|
|
"${config.ZipSyncCmd}",
|
|
},
|
|
Rspfile: "$out.rsp",
|
|
RspfileContent: `$in`,
|
|
},
|
|
"kotlincFlags", "encodedJavacFlags", "kaptProcessorPath", "kaptProcessor",
|
|
"classpath", "srcJars", "commonSrcFilesArg", "srcJarDir", "kaptDir", "kotlinJvmTarget",
|
|
"kotlinBuildFile", "name", "classesJarOut")
|
|
|
|
// kotlinKapt performs Kotlin-compatible annotation processing. It takes .kt and .java sources and srcjars, and runs
|
|
// annotation processors over all of them, producing a srcjar of generated code in outputFile. The srcjar should be
|
|
// added as an additional input to kotlinc and javac rules, and the javac rule should have annotation processing
|
|
// disabled.
|
|
func kotlinKapt(ctx android.ModuleContext, srcJarOutputFile, resJarOutputFile android.WritablePath,
|
|
srcFiles, commonSrcFiles, srcJars android.Paths,
|
|
flags javaBuilderFlags) {
|
|
|
|
srcFiles = append(android.Paths(nil), srcFiles...)
|
|
|
|
var deps android.Paths
|
|
deps = append(deps, flags.kotlincClasspath...)
|
|
deps = append(deps, srcJars...)
|
|
deps = append(deps, flags.processorPath...)
|
|
deps = append(deps, commonSrcFiles...)
|
|
|
|
commonSrcsList := kotlinCommonSrcsList(ctx, commonSrcFiles)
|
|
commonSrcFilesArg := ""
|
|
if commonSrcsList.Valid() {
|
|
deps = append(deps, commonSrcsList.Path())
|
|
commonSrcFilesArg = "--common_srcs " + commonSrcsList.String()
|
|
}
|
|
|
|
kaptProcessorPath := flags.processorPath.FormRepeatedClassPath("-P plugin:org.jetbrains.kotlin.kapt3:apclasspath=")
|
|
|
|
kaptProcessor := ""
|
|
for i, p := range flags.processors {
|
|
if i > 0 {
|
|
kaptProcessor += " "
|
|
}
|
|
kaptProcessor += "-P plugin:org.jetbrains.kotlin.kapt3:processors=" + p
|
|
}
|
|
|
|
encodedJavacFlags := kaptEncodeFlags([][2]string{
|
|
{"-source", flags.javaVersion.String()},
|
|
{"-target", flags.javaVersion.String()},
|
|
})
|
|
|
|
kotlinName := filepath.Join(ctx.ModuleDir(), ctx.ModuleSubDir(), ctx.ModuleName())
|
|
kotlinName = strings.ReplaceAll(kotlinName, "/", "__")
|
|
|
|
// First run kapt to generate .java stubs from .kt files
|
|
kaptStubsJar := android.PathForModuleOut(ctx, "kapt", "stubs.jar")
|
|
ctx.Build(pctx, android.BuildParams{
|
|
Rule: kaptStubs,
|
|
Description: "kapt stubs",
|
|
Output: kaptStubsJar,
|
|
Inputs: srcFiles,
|
|
Implicits: deps,
|
|
Args: map[string]string{
|
|
"classpath": flags.kotlincClasspath.FormJavaClassPath(""),
|
|
"kotlincFlags": flags.kotlincFlags,
|
|
"commonSrcFilesArg": commonSrcFilesArg,
|
|
"srcJars": strings.Join(srcJars.Strings(), " "),
|
|
"srcJarDir": android.PathForModuleOut(ctx, "kapt", "srcJars").String(),
|
|
"kotlinBuildFile": android.PathForModuleOut(ctx, "kapt", "build.xml").String(),
|
|
"kaptProcessorPath": strings.Join(kaptProcessorPath, " "),
|
|
"kaptProcessor": kaptProcessor,
|
|
"kaptDir": android.PathForModuleOut(ctx, "kapt/gen").String(),
|
|
"encodedJavacFlags": encodedJavacFlags,
|
|
"name": kotlinName,
|
|
"classesJarOut": resJarOutputFile.String(),
|
|
},
|
|
})
|
|
|
|
// Then run turbine to perform annotation processing on the stubs and any .java srcFiles.
|
|
javaSrcFiles := srcFiles.FilterByExt(".java")
|
|
turbineSrcJars := append(android.Paths{kaptStubsJar}, srcJars...)
|
|
TurbineApt(ctx, srcJarOutputFile, resJarOutputFile, javaSrcFiles, turbineSrcJars, flags)
|
|
}
|
|
|
|
// kapt converts a list of key, value pairs into a base64 encoded Java serialization, which is what kapt expects.
|
|
func kaptEncodeFlags(options [][2]string) string {
|
|
buf := &bytes.Buffer{}
|
|
|
|
binary.Write(buf, binary.BigEndian, uint32(len(options)))
|
|
for _, option := range options {
|
|
binary.Write(buf, binary.BigEndian, uint16(len(option[0])))
|
|
buf.WriteString(option[0])
|
|
binary.Write(buf, binary.BigEndian, uint16(len(option[1])))
|
|
buf.WriteString(option[1])
|
|
}
|
|
|
|
header := &bytes.Buffer{}
|
|
header.Write([]byte{0xac, 0xed, 0x00, 0x05}) // java serialization header
|
|
|
|
if buf.Len() < 256 {
|
|
header.WriteByte(0x77) // blockdata
|
|
header.WriteByte(byte(buf.Len()))
|
|
} else {
|
|
header.WriteByte(0x7a) // blockdatalong
|
|
binary.Write(header, binary.BigEndian, uint32(buf.Len()))
|
|
}
|
|
|
|
return base64.StdEncoding.EncodeToString(append(header.Bytes(), buf.Bytes()...))
|
|
}
|