/* -*- Mode: Groovy; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

import groovy.json.JsonSlurper

// Loads the mach environment configurations into a gradle extension property.

apply from: file('./mach_env.gradle')

logger.lifecycle("mozconfig.gradle> Loading mach environment into a gradle extension property")

if (!ext.hasProperty("topsrcdir")) {
    ext.topsrcdir = file(buildscript.getSourceFile()).getParentFile().getParentFile().getParentFile().getParentFile().absolutePath
}

def commandLine = ["${topsrcdir}/mach", "environment", "--format", "json", "--verbose"]
if (System.env.GRADLE_MACH_PYTHON) {
    commandLine.addAll(0, [System.env.GRADLE_MACH_PYTHON])
} else if (System.properties["os.name"].contains("Windows")) {
    commandLine.addAll(0, ["python"])
}

def proc = commandLine.execute(machEnv(topsrcdir), new File(topsrcdir))
def standardOutput = new ByteArrayOutputStream()
def standardError = new ByteArrayOutputStream()
proc.consumeProcessOutput(standardOutput, standardError)
proc.waitFor()

// Only show the output if something went wrong.
if (proc.exitValue() != 0) {
    logger.info("mozconfig.gradle> Error running ./mach environment: \n\n"
            + "Process '${commandLine}' finished with non-zero exit value ${proc.exitValue()}:\n\n"
            + "stdout:\n"
            + "${standardOutput.toString()}\n\n"
            + "stderr:\n"
            + "${standardError.toString()}")
    throw new StopExecutionException(
            "Could not run ./mach environment. Try running ./mach build first.")
}

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 Firefox for Android, i.e., MOZ_BUILD_APP == 'mobile/android'.")
}

// 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

// Produced by `mach build`.  Bug 1543982: the mozconfig determined by `mach
// environment` above can be different because `mach build` itself sets certain
// critical environment variables including MOZ_OBJDIR, CC, and CXX.  We use
// this record to patch up the environment when we recursively invoke `mach
// build ...` commands from within Gradle.  This avoids invalidating configure
// based on the changed environment variables.
def orig = slurper.parse(new File(json.topobjdir, '.mozconfig.json'))
gradle.ext.mozconfig.orig_mozconfig = orig.mozconfig