settings.gradle
author Nick Alexander <nalexander@mozilla.com>
Thu, 22 Feb 2018 16:11:14 -0800
changeset 471392 d8c9882a3b3ca27904d6169567829e79c458e567
parent 439151 31f87080283b1dc558f3781e0ec2ca59d102de82
child 525636 b698ba8b6e2454bd18dbe5b03fb98f8f6ff47df6
permissions -rw-r--r--
Bug 1444546 - Part 2: Build annotationProcessors with Gradle. r=jchen We want annotationProcessors to be compiled and archived into a JAR at build time, ready to generate JNI wrappers. (That is, until we turn the whole thing into a real annotation processor.) But even if we do use a real annotation processor, we still need to generate SDK bindings, which is less clearly expressed as an annotation processor. (It's more of a build step.) Gradle provides a huge number of ways to organize build logic to achieve this: see https://docs.gradle.org/current/userguide/organizing_build_logic.html. Unfortunately, the best such way -- putting the code into $topsrcdir/buildSrc -- has key disadvantages: 1) it pollutes the top-level $topsrcdir, and there's no way to change the location of buildSrc (https://github.com/gradle/gradle/issues/2472); 2) it's complicated to have a dependent project (mobile/android/annotations) expose its code via a buildSrc project; 3) using buildSrc at all appears to conflict with the Android-Gradle plugin version that we are using. Therefore, this commit does something much simpler: it adds a Java-only project and uses the resulting Gradle "Jar" task and archive output as input to the existing Gradle "generate JNI wrappers" task. MozReview-Commit-ID: 2OyYLPneE1M

// You might think topsrcdir is '.', but that's not true when the Gradle build
// is launched from within IntelliJ.
def topsrcdir = rootProject.projectDir.absolutePath

def commandLine = ["${topsrcdir}/mach", "environment", "--format", "json", "--verbose"]
def proc = commandLine.execute(null, new File(topsrcdir))
def standardOutput = new ByteArrayOutputStream()
proc.consumeProcessOutput(standardOutput, standardOutput)
proc.waitFor()

// Only show the output if something went wrong.
if (proc.exitValue() != 0) {
    throw new GradleException("Process '${commandLine}' finished with non-zero exit value ${proc.exitValue()}:\n\n${standardOutput.toString()}")
}

import groovy.json.JsonSlurper

def slurper = new JsonSlurper()
def json = slurper.parseText(standardOutput.toString())

if (json.substs.MOZ_BUILD_APP != 'mobile/android') {
    throw new GradleException("Building with Gradle is only supported for Fennec, i.e., MOZ_BUILD_APP == 'mobile/android'.")
}

// Set the Android SDK location.  This is the *least specific* mechanism, which
// is unfortunate: we'd prefer to use the *most specific* mechanism.  That is,
// local.properties (first 'sdk.dir', then 'android.dir') and then the
// environment variable ANDROID_HOME will override this.  That's unfortunate,
// but it's hard to automatically arrange better.
System.setProperty('android.home', json.substs.ANDROID_SDK_ROOT)

include ':annotations'
include ':app'
include ':geckoview'
include ':geckoview_example'
include ':omnijar'
include ':thirdparty'

project(':annotations').projectDir = new File("${json.topsrcdir}/mobile/android/annotations")
project(':app').projectDir = new File("${json.topsrcdir}/mobile/android/app")
project(':geckoview').projectDir = new File("${json.topsrcdir}/mobile/android/geckoview")
project(':geckoview_example').projectDir = new File("${json.topsrcdir}/mobile/android/geckoview_example")
project(':omnijar').projectDir = new File("${json.topsrcdir}/mobile/android/app/omnijar")
project(':thirdparty').projectDir = new File("${json.topsrcdir}/mobile/android/thirdparty")

// The Gradle instance is shared between settings.gradle and all the
// other build.gradle files (see
// http://forums.gradle.org/gradle/topics/define_extension_properties_from_settings_xml).
// We use this ext property to pass the per-object-directory mozconfig
// between scripts.  This lets us execute set-up code before we gradle
// tries to configure the project even once, and as a side benefit
// saves invoking |mach environment| multiple times.
gradle.ext.mozconfig = json