build.gradle

/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

plugins {
    id("com.android.library")
    id("maven")
    id("de.undercouch.download")
}

import java.nio.file.Paths

import de.undercouch.gradle.tasks.download.Download
import org.apache.tools.ant.taskdefs.condition.Os
import org.apache.tools.ant.filters.ReplaceTokens

// We download various C++ open-source dependencies into downloads.
// We then copy both the downloaded code and our custom makefiles and headers into third-party-ndk.
// After that we build native code from src/main/jni with module path pointing at third-party-ndk.

def customDownloadsDir = System.getenv("REACT_NATIVE_DOWNLOADS_DIR")
def downloadsDir = customDownloadsDir ? new File(customDownloadsDir) : new File("$buildDir/downloads")
def thirdPartyNdkDir = new File("$buildDir/third-party-ndk")

// You need to have following folders in this directory:
//   - boost_1_63_0
//   - double-conversion-1.1.6
//   - folly-deprecate-dynamic-initializer
//   - glog-0.3.5
def dependenciesPath = System.getenv("REACT_NATIVE_DEPENDENCIES")

// The Boost library is a very large download (>100MB).
// If Boost is already present on your system, define the REACT_NATIVE_BOOST_PATH env variable
// and the build will use that.
def boostPath = dependenciesPath ?: System.getenv("REACT_NATIVE_BOOST_PATH")

// Setup build type for NDK, supported values: {debug, release}
def nativeBuildType = System.getenv("NATIVE_BUILD_TYPE") ?: "release"

task createNativeDepsDirectories {
    downloadsDir.mkdirs()
    thirdPartyNdkDir.mkdirs()
}

task downloadBoost(dependsOn: createNativeDepsDirectories, type: Download) {
    src("https://github.com/react-native-community/boost-for-react-native/releases/download/v${BOOST_VERSION.replace("_", ".")}-0/boost_${BOOST_VERSION}.tar.gz")
    onlyIfNewer(true)
    overwrite(false)
    dest(new File(downloadsDir, "boost_${BOOST_VERSION}.tar.gz"))
}

task prepareBoost(dependsOn: boostPath ? [] : [downloadBoost], type: Copy) {
    from(boostPath ?: tarTree(resources.gzip(downloadBoost.dest)))
    from("src/main/jni/third-party/boost/Android.mk")
    include("Android.mk", "boost_${BOOST_VERSION}/boost/**/*.hpp", "boost/boost/**/*.hpp")
    includeEmptyDirs = false
    into("$thirdPartyNdkDir/boost")
    doLast {
        file("$thirdPartyNdkDir/boost/boost").renameTo("$thirdPartyNdkDir/boost/boost_${BOOST_VERSION}")
    }
}

task downloadDoubleConversion(dependsOn: createNativeDepsDirectories, type: Download) {
    src("https://github.com/google/double-conversion/archive/v${DOUBLE_CONVERSION_VERSION}.tar.gz")
    onlyIfNewer(true)
    overwrite(false)
    dest(new File(downloadsDir, "double-conversion-${DOUBLE_CONVERSION_VERSION}.tar.gz"))
}

task prepareDoubleConversion(dependsOn: dependenciesPath ? [] : [downloadDoubleConversion], type: Copy) {
    from(dependenciesPath ?: tarTree(downloadDoubleConversion.dest))
    from("src/main/jni/third-party/double-conversion/Android.mk")
    include("double-conversion-${DOUBLE_CONVERSION_VERSION}/src/**/*", "Android.mk")
    filesMatching("*/src/**/*", { fname -> fname.path = "double-conversion/${fname.name}" })
    includeEmptyDirs = false
    into("$thirdPartyNdkDir/double-conversion")
}

task downloadFolly(dependsOn: createNativeDepsDirectories, type: Download) {
    src("https://github.com/facebook/folly/archive/v${FOLLY_VERSION}.tar.gz")
    onlyIfNewer(true)
    overwrite(false)
    dest(new File(downloadsDir, "folly-${FOLLY_VERSION}.tar.gz"))
}

task prepareFolly(dependsOn: dependenciesPath ? [] : [downloadFolly], type: Copy) {
    from(dependenciesPath ?: tarTree(downloadFolly.dest))
    from("src/main/jni/third-party/folly/Android.mk")
    include("folly-${FOLLY_VERSION}/folly/**/*", "Android.mk")
    eachFile { fname -> fname.path = (fname.path - "folly-${FOLLY_VERSION}/") }
    includeEmptyDirs = false
    into("$thirdPartyNdkDir/folly")
}

task prepareHermes() {
    def hermesPackagePath = findNodeModulePath(projectDir, "hermes-engine")
    if (!hermesPackagePath) {
        throw new GradleScriptException("Could not find the hermes-engine npm package")
    }

    def hermesAAR = file("$hermesPackagePath/android/hermes-debug.aar")
    if (!hermesAAR.exists()) {
        throw new GradleScriptException("The hermes-engine npm package is missing \"android/hermes-debug.aar\"")
    }

    def soFiles = zipTree(hermesAAR).matching({ it.include "**/*.so" })

    copy {
        from soFiles
        from "src/main/jni/first-party/hermes/Android.mk"
        into "$thirdPartyNdkDir/hermes"
    }
}

task downloadGlog(dependsOn: createNativeDepsDirectories, type: Download) {
    src("https://github.com/google/glog/archive/v${GLOG_VERSION}.tar.gz")
    onlyIfNewer(true)
    overwrite(false)
    dest(new File(downloadsDir, "glog-${GLOG_VERSION}.tar.gz"))
}

// Prepare glog sources to be compiled, this task will perform steps that normally should've been
// executed by automake. This way we can avoid dependencies on make/automake
task prepareGlog(dependsOn: dependenciesPath ? [] : [downloadGlog], type: Copy) {
    from(dependenciesPath ?: tarTree(downloadGlog.dest))
    from("src/main/jni/third-party/glog/")
    include("glog-${GLOG_VERSION}/src/**/*", "Android.mk", "config.h")
    includeEmptyDirs = false
    filesMatching("**/*.h.in") {
        filter(ReplaceTokens, tokens: [
                ac_cv_have_unistd_h           : "1",
                ac_cv_have_stdint_h           : "1",
                ac_cv_have_systypes_h         : "1",
                ac_cv_have_inttypes_h         : "1",
                ac_cv_have_libgflags          : "0",
                ac_google_start_namespace     : "namespace google {",
                ac_cv_have_uint16_t           : "1",
                ac_cv_have_u_int16_t          : "1",
                ac_cv_have___uint16           : "0",
                ac_google_end_namespace       : "}",
                ac_cv_have___builtin_expect   : "1",
                ac_google_namespace           : "google",
                ac_cv___attribute___noinline  : "__attribute__ ((noinline))",
                ac_cv___attribute___noreturn  : "__attribute__ ((noreturn))",
                ac_cv___attribute___printf_4_5: "__attribute__((__format__ (__printf__, 4, 5)))"
        ])
        it.path = (it.name - ".in")
    }
    into("$thirdPartyNdkDir/glog")

    doLast {
        copy {
            from(fileTree(dir: "$thirdPartyNdkDir/glog", includes: ["stl_logging.h", "logging.h", "raw_logging.h", "vlog_is_on.h", "**/src/glog/log_severity.h"]).files)
            includeEmptyDirs = false
            into("$thirdPartyNdkDir/glog/exported/glog")
        }
    }
}

// Create Android.mk library module based on jsc from npm
task prepareJSC {
    doLast {
        def jscPackagePath = findNodeModulePath(projectDir, "jsc-android")
        if (!jscPackagePath) {
            throw new GradleScriptException("Could not find the jsc-android npm package")
        } 

        def jscDist = file("$jscPackagePath/dist")
        if (!jscDist.exists()) {
            throw new GradleScriptException("The jsc-android npm package is missing its \"dist\" directory")
        }

        def jscAAR = fileTree(jscDist).matching({ it.include "**/android-jsc/**/*.aar" }).singleFile
        def soFiles = zipTree(jscAAR).matching({ it.include "**/*.so" })

        def headerFiles = fileTree(jscDist).matching({ it.include "**/include/*.h" })

        copy {
            from(soFiles)
            from(headerFiles)
            from("src/main/jni/third-party/jsc/Android.mk")

            filesMatching("**/*.h", { it.path = "JavaScriptCore/${it.name}" })

            includeEmptyDirs(false)
            into("$thirdPartyNdkDir/jsc")
        }
    }
}
task downloadNdkBuildDependencies {
    if (!boostPath) {
        dependsOn(downloadBoost)
    }
    dependsOn(downloadDoubleConversion)
    dependsOn(downloadFolly)
    dependsOn(downloadGlog)
}

/**
 * Finds the path of the installed npm package with the given name using Node's
 * module resolution algorithm, which searches "node_modules" directories up to
 * the file system root. This handles various cases, including:
 *
 *   - Working in the open-source RN repo:
 *       Gradle: /path/to/react-native/ReactAndroid
 *       Node module: /path/to/react-native/node_modules/[package]
 *
 *   - Installing RN as a dependency of an app and searching for hoisted
 *     dependencies:
 *       Gradle: /path/to/app/node_modules/react-native/ReactAndroid
 *       Node module: /path/to/app/node_modules/[package]
 *
 *   - Working in a larger repo (e.g., Facebook) that contains RN:
 *       Gradle: /path/to/repo/path/to/react-native/ReactAndroid
 *       Node module: /path/to/repo/node_modules/[package]
 *
 * The search begins at the given base directory (a File object). The returned
 * path is a string.
 */
def findNodeModulePath(baseDir, packageName) {
    def basePath = baseDir.toPath().normalize()
    // Node's module resolution algorithm searches up to the root directory,
    // after which the base path will be null 
    while (basePath) {
        def candidatePath = Paths.get(basePath.toString(), "node_modules", packageName)
        if (candidatePath.toFile().exists()) {
            return candidatePath.toString()
        }
        basePath = basePath.getParent()
    }
    return null
}

def getNdkBuildName() {
    if (Os.isFamily(Os.FAMILY_WINDOWS)) {
        return "ndk-build.cmd"
    } else {
        return "ndk-build"
    }
}

def findNdkBuildFullPath() {
    // we allow to provide full path to ndk-build tool
    if (hasProperty("ndk.command")) {
        return property("ndk.command")
    }
    // or just a path to the containing directory
    if (hasProperty("ndk.path")) {
        def ndkDir = property("ndk.path")
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }

    if (System.getenv("ANDROID_NDK") != null) {
        def ndkDir = System.getenv("ANDROID_NDK")
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }

    def ndkDir = android.ndkDirectory ? android.ndkDirectory.absolutePath : null

    if (ndkDir) {
        return new File(ndkDir, getNdkBuildName()).getAbsolutePath()
    }
    return null
}

def reactNativeDevServerPort() {
    def value = project.getProperties().get("reactNativeDevServerPort")
    return value != null ? value : "8081"
}

def reactNativeInspectorProxyPort() {
    def value = project.getProperties().get("reactNativeInspectorProxyPort")
    return value != null ? value : reactNativeDevServerPort()
}

def getNdkBuildFullPath() {
    def ndkBuildFullPath = findNdkBuildFullPath()
    if (ndkBuildFullPath == null) {
        throw new GradleScriptException(
                "ndk-build binary cannot be found, check if you've set " +
                        "\$ANDROID_NDK environment variable correctly or if ndk.dir is " +
                        "setup in local.properties",
                null)
    }
    if (!new File(ndkBuildFullPath).canExecute()) {
        throw new GradleScriptException(
                "ndk-build binary " + ndkBuildFullPath + " doesn't exist or isn't executable.\n" +
                        "Check that the \$ANDROID_NDK environment variable, or ndk.dir in local.properties, is set correctly.\n" +
                        "(On Windows, make sure you escape backslashes in local.properties or use forward slashes, e.g. C:\\\\ndk or C:/ndk rather than C:\\ndk)",
                null)
    }
    return ndkBuildFullPath
}

def buildReactNdkLib = tasks.register("buildReactNdkLib", Exec) {
    dependsOn(prepareJSC, prepareHermes, prepareBoost, prepareDoubleConversion, prepareFolly, prepareGlog, extractAARHeaders, extractJNIFiles)

    inputs.dir("$projectDir/../ReactCommon")
    inputs.dir("src/main/jni")
    inputs.dir("src/main/java/com/facebook/react/modules/blob")
    outputs.dir("$buildDir/react-ndk/all")
    commandLine(getNdkBuildFullPath(),
            "NDK_DEBUG=" + (nativeBuildType.equalsIgnoreCase("debug") ? "1" : "0"),
            "NDK_PROJECT_PATH=null",
            "NDK_APPLICATION_MK=$projectDir/src/main/jni/Application.mk",
            "NDK_OUT=" + temporaryDir,
            "NDK_LIBS_OUT=$buildDir/react-ndk/all",
            "THIRD_PARTY_NDK_DIR=$buildDir/third-party-ndk",
            "REACT_COMMON_DIR=$projectDir/../ReactCommon",
            "REACT_SRC_DIR=$projectDir/src/main/java/com/facebook/react",
            "-C", file("src/main/jni/react/jni").absolutePath,
            "--jobs", project.findProperty("jobs") ?: Runtime.runtime.availableProcessors()
    )
}

def cleanReactNdkLib = tasks.register("cleanReactNdkLib", Exec) {
    ignoreExitValue(true)
    errorOutput(new ByteArrayOutputStream())
    commandLine(getNdkBuildFullPath(),
            "NDK_APPLICATION_MK=$projectDir/src/main/jni/Application.mk",
            "THIRD_PARTY_NDK_DIR=$buildDir/third-party-ndk",
            "REACT_COMMON_DIR=$projectDir/../ReactCommon",
            "-C", file("src/main/jni/react/jni").absolutePath,
            "clean")
    doLast {
        file(AAR_OUTPUT_URL).delete()
        println("Deleted aar output dir at ${file(AAR_OUTPUT_URL)}")
    }
}

def packageReactNdkLibs = tasks.register("packageReactNdkLibs", Copy) {
    dependsOn(buildReactNdkLib)
    from("$buildDir/react-ndk/all")
    into("$buildDir/react-ndk/exported")
    exclude("**/libjsc.so")
    exclude("**/libhermes.so")
}

def packageReactNdkLibsForBuck = tasks.register("packageReactNdkLibsForBuck", Copy) {
    dependsOn(packageReactNdkLibs)
    from("$buildDir/react-ndk/exported")
    into("src/main/jni/prebuilt/lib")
}

task extractAARHeaders {
    doLast {
        configurations.extractHeaders.files.each {
            def file = it.absoluteFile
            def packageName = file.name.tokenize('-')[0]
            copy {
                from zipTree(file)
                into "$projectDir/src/main/jni/first-party/$packageName/headers"
                include "**/*.h"
            }
        }
    }
}

task extractJNIFiles {
    doLast {
        configurations.extractJNI.files.each {
            def file = it.absoluteFile
            def packageName = file.name.tokenize('-')[0]
            copy {
                from zipTree(file)
                into "$projectDir/src/main/jni/first-party/$packageName/"
                include "jni/**/*"
            }
        }
    }
}

android {
    compileSdkVersion 28

    compileOptions {
        sourceCompatibility(JavaVersion.VERSION_1_8)
        targetCompatibility(JavaVersion.VERSION_1_8)
    }

    defaultConfig {
        minSdkVersion(16)
        targetSdkVersion(28)
        versionCode(1)
        versionName("1.0")

        consumerProguardFiles("proguard-rules.pro")

        ndk {
            moduleName("reactnativejni")
        }

        buildConfigField("boolean", "IS_INTERNAL_BUILD", "false")
        buildConfigField("int", "EXOPACKAGE_FLAGS", "0")

        resValue "integer", "react_native_dev_server_port", reactNativeDevServerPort()
        resValue "integer", "react_native_inspector_proxy_port", reactNativeInspectorProxyPort()

        testApplicationId("com.facebook.react.tests.gradle")
        testInstrumentationRunner("androidx.test.runner.AndroidJUnitRunner")
    }

    sourceSets.main {
        jni.srcDirs = []
        jniLibs.srcDir("$buildDir/react-ndk/exported")
        res.srcDirs = ["src/main/res/devsupport", "src/main/res/shell", "src/main/res/views/modal", "src/main/res/views/uimanager"]
        java {
            srcDirs = ["src/main/java", "src/main/libraries/soloader/java", "src/main/jni/first-party/fb/jni/java"]
            exclude("com/facebook/react/processing")
            exclude("com/facebook/react/module/processing")
        }
    }

    tasks.withType(JavaCompile) {
        compileTask ->
            compileTask.dependsOn(packageReactNdkLibs)
    }

    clean.dependsOn(cleanReactNdkLib)

    lintOptions {
        abortOnError(false)
    }

    packagingOptions {
        exclude("META-INF/NOTICE")
        exclude("META-INF/LICENSE")
    }

    configurations {
        extractHeaders
        extractJNI
    }
}

dependencies {
    api("com.facebook.infer.annotation:infer-annotation:0.11.2")
    api("com.facebook.yoga:proguard-annotations:1.14.1")
    api("javax.inject:javax.inject:1")
    api("androidx.appcompat:appcompat:1.0.2")
    api("com.facebook.fresco:fresco:${FRESCO_VERSION}")
    api("com.facebook.fresco:imagepipeline-okhttp3:${FRESCO_VERSION}")
    api("com.facebook.soloader:soloader:${SO_LOADER_VERSION}")
    api("com.google.code.findbugs:jsr305:3.0.2")
    api("com.squareup.okhttp3:okhttp:${OKHTTP_VERSION}")
    api("com.squareup.okhttp3:okhttp-urlconnection:${OKHTTP_VERSION}")
    api("com.squareup.okio:okio:1.15.0")
    api("com.facebook.fbjni:fbjni-java-only:0.0.3")
    extractHeaders("com.facebook.fbjni:fbjni:0.0.2:headers")
    extractJNI("com.facebook.fbjni:fbjni:0.0.2")

    testImplementation("junit:junit:${JUNIT_VERSION}")
    testImplementation("org.powermock:powermock-api-mockito:${POWERMOCK_VERSION}")
    testImplementation("org.powermock:powermock-module-junit4-rule:${POWERMOCK_VERSION}")
    testImplementation("org.powermock:powermock-classloading-xstream:${POWERMOCK_VERSION}")
    testImplementation("org.mockito:mockito-core:${MOCKITO_CORE_VERSION}")
    testImplementation("org.easytesting:fest-assert-core:${FEST_ASSERT_CORE_VERSION}")
    testImplementation("org.robolectric:robolectric:${ROBOLECTRIC_VERSION}")

    androidTestImplementation(fileTree(dir: "src/main/third-party/java/buck-android-support/", include: ["*.jar"]))
    androidTestImplementation("androidx.test:runner:${ANDROIDX_TEST_VERSION}")
    androidTestImplementation("androidx.test:rules:${ANDROIDX_TEST_VERSION}")
    androidTestImplementation("org.mockito:mockito-core:${MOCKITO_CORE_VERSION}")
}

apply(from: "release.gradle")