New Android suppport

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "support/android-rs-glue"]
-	path = support/android-rs-glue
-	url = https://github.com/tomaka/android-rs-glue

components/profile/lib.rs

@@ -2,6 +2,7 @@
  * 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/. */
 
+#![feature(alloc_jemalloc)]
 #![feature(box_syntax)]
 #![feature(iter_arith)]
 #![feature(slice_splits)]
@@ -12,6 +13,8 @@
 extern crate log;
 #[macro_use]
 extern crate profile_traits;
+
+extern crate alloc_jemalloc;
 extern crate hbs_pow;
 extern crate ipc_channel;
 extern crate libc;

components/servo/.cargo/config

@@ -1,7 +1,5 @@
-paths = ["../../support/android-rs-glue"]
-
 [target.arm-linux-androideabi]
-linker = "../../target/debug/apk-builder"
+linker = "./fake-ld.sh"
 ar = "arm-linux-androideabi-ar"
 
 [target.arm-unknown-linux-gnueabihf]

components/servo/Cargo.lock

@@ -2,7 +2,7 @@
 name = "servo"
 version = "0.0.1"
 dependencies = [
- "android_glue 0.1.1",
+ "android_glue 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "canvas 0.0.1",
  "canvas_traits 0.0.1",
@@ -55,10 +55,6 @@ dependencies = [
  "memchr 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "android_glue"
-version = "0.1.1"
-
 [[package]]
 name = "android_glue"
 version = "0.1.1"
@@ -677,7 +673,7 @@ dependencies = [
 
 [[package]]
 name = "gif"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "color_quant 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -929,7 +925,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "enum_primitive 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "gif 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gif 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "num 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "png 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",

components/servo/Cargo.toml

@@ -3,6 +3,7 @@
 name = "servo"
 version = "0.0.1"
 authors = ["The Servo Project Developers"]
+build = "build.rs"
 
 [lib]
 name = "servo"
@@ -111,7 +112,6 @@ path = "../../ports/glutin"
 optional = true
 
 [dependencies.android_glue]
-path = "../../support/android-rs-glue/glue"
 optional = true
 
 [dependencies.log]

components/servo/build.rs

@@ -0,0 +1,61 @@
+/* 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/. */
+
+use std::env;
+use std::path::Path;
+use std::process;
+use std::process::{Command, Stdio};
+
+fn main() {
+    // build.rs is not platform-specific, so we have to check the target here.
+    let target = env::var("TARGET").unwrap();
+    if target.contains("android") {
+        android_main()
+    }
+}
+
+fn android_main() {
+    // Get the NDK path from NDK_HOME env.
+    let ndk_path = env::var("NDK_HOME").ok().expect("Please set the NDK_HOME environment variable");
+    let ndk_path = Path::new(&ndk_path);
+
+    // Get the standalone NDK path from NDK_STANDALONE env.
+    let standalone_path = env::var("NDK_STANDALONE").ok().expect("Please set the NDK_STANDALONE environment variable");
+    let standalone_path = Path::new(&standalone_path);
+
+    // Get the standalone NDK path from NDK_STANDALONE env.
+    let out_dir = env::var("OUT_DIR").ok().expect("Cargo should have set the OUT_DIR environment variable");
+    let directory = Path::new(&out_dir);
+
+    // compiling android_native_app_glue.c
+    if Command::new(standalone_path.join("bin").join("arm-linux-androideabi-gcc"))
+        .arg(ndk_path.join("sources").join("android").join("native_app_glue").join("android_native_app_glue.c"))
+        .arg("-c")
+        .arg("-o").arg(directory.join("android_native_app_glue.o"))
+        .stdout(Stdio::inherit())
+        .stderr(Stdio::inherit())
+        .status().unwrap().code().unwrap() != 0
+    {
+        println!("Error while executing gcc");
+        process::exit(1)
+    }
+
+    // compiling libandroid_native_app_glue.a
+    if Command::new(standalone_path.join("bin").join("arm-linux-androideabi-ar"))
+        .arg("rcs")
+        .arg(directory.join("libandroid_native_app_glue.a"))
+        .arg(directory.join("android_native_app_glue.o"))
+        .stdout(Stdio::inherit())
+        .stderr(Stdio::inherit())
+        .status().unwrap().code().unwrap() != 0
+    {
+        println!("Error while executing ar");
+        process::exit(1)
+    }
+
+    println!("cargo:rustc-link-lib=static=android_native_app_glue");
+    println!("cargo:rustc-link-search=native={}", out_dir);
+    println!("cargo:rustc-link-lib=log");
+    println!("cargo:rustc-link-lib=android");
+}

components/servo/fake-ld.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+TARGET_DIR=$OUT_DIR/../../..
+arm-linux-androideabi-gcc $@ $LDFLAGS -lc -o $TARGET_DIR/libservo.so -shared && touch $TARGET_DIR/servo

components/servo/main.rs

@@ -23,6 +23,8 @@ extern crate android_glue;
 // The window backed by glutin
 extern crate glutin_app as app;
 extern crate env_logger;
+#[cfg(target_os = "android")]
+extern crate libc;
 #[macro_use]
 extern crate log;
 // The Servo engine
@@ -171,6 +173,16 @@ fn args() -> Vec<String> {
     env::args().collect()
 }
 
+
+// This extern definition ensures that the linker will not discard
+// the static native lib bits, which are brought in from the NDK libraries
+// we link in from build.rs.
+#[cfg(target_os = "android")]
+extern {
+    fn app_dummy() -> libc::c_void;
+}
+
+
 // This macro must be used at toplevel because it defines a nested
 // module, but macros can only accept identifiers - not paths -
 // preventing the expansion of this macro within the android module
@@ -193,6 +205,8 @@ mod android {
         //env::set_var("RUST_LOG", "servo,gfx,msg,util,layers,js,std,rt,extra");
         redirect_output(STDERR_FILENO);
         redirect_output(STDOUT_FILENO);
+
+        unsafe { super::app_dummy(); }
     }
 
     struct FilePtr(*mut self::libc::types::common::c95::FILE);

ports/cef/Cargo.lock

@@ -627,7 +627,7 @@ dependencies = [
 
 [[package]]
 name = "gif"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "color_quant 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -879,7 +879,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "enum_primitive 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "gif 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gif 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "num 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "png 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",

ports/gonk/Cargo.lock

@@ -629,7 +629,7 @@ dependencies = [
 
 [[package]]
 name = "gif"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "color_quant 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -828,7 +828,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "enum_primitive 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "gif 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gif 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "num 0.1.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "png 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",

python/servo/build_commands.py

@@ -198,13 +198,6 @@ class MachCommands(CommandBase):
         if verbose:
             opts += ["-v"]
         if android:
-            # Ensure the APK builder submodule has been built first
-            apk_builder_dir = "support/android-rs-glue"
-            with cd(path.join(apk_builder_dir, "apk-builder")):
-                status = call(["cargo", "build"], env=self.build_env(), verbose=verbose)
-                if status:
-                    return status
-
             opts += ["--target", "arm-linux-androideabi"]
 
         if debug_mozjs or self.config["build"]["debug-mozjs"]:

python/servo/command_base.py

@@ -135,6 +135,9 @@ class CommandBase(object):
                 self._cargo_build_id = f.read().strip()
         return self._cargo_build_id
 
+    def get_top_dir(self):
+        return self.context.topdir
+
     def get_target_dir(self):
         if "CARGO_TARGET_DIR" in os.environ:
             return os.environ["CARGO_TARGET_DIR"]

python/servo/post_build_commands.py

@@ -22,7 +22,7 @@ from mach.decorators import (
     Command,
 )
 
-from servo.command_base import CommandBase
+from servo.command_base import CommandBase, cd
 
 
 def read_file(filename, if_exists=False):
@@ -33,8 +33,7 @@ def read_file(filename, if_exists=False):
 
 
 @CommandProvider
-class MachCommands(CommandBase):
+class PostBuildCommands(CommandBase):
-
     @Command('run',
              description='Run Servo',
              category='post-build')
@@ -167,3 +166,36 @@ class MachCommands(CommandBase):
         import webbrowser
         webbrowser.open("file://" + path.abspath(path.join(
             self.get_target_dir(), "doc", "servo", "index.html")))
+
+    @Command('package',
+             description='Package Servo (currently, Android APK only)',
+             category='post-build')
+    @CommandArgument('--release', '-r', action='store_true',
+                     help='Package the release build')
+    @CommandArgument('--dev', '-d', action='store_true',
+                     help='Package the dev build')
+    @CommandArgument(
+        'params', nargs='...',
+        help="Command-line arguments to be passed through to Servo")
+    def package(self, params, release=False, dev=False, debug=False, debugger=None):
+        env = self.build_env()
+        target_dir = path.join(self.get_target_dir(), "arm-linux-androideabi")
+        dev_flag = ""
+
+        if dev:
+            env["NDK_DEBUG"] = "1"
+            env["ANT_FLAVOR"] = "debug"
+            dev_flag = "-d"
+            target_dir = path.join(target_dir, "debug")
+        else:
+            env["ANT_FLAVOR"] = "release"
+            target_dir = path.join(target_dir, "release")
+
+        output_apk = path.join(target_dir, "servo.apk")
+        try:
+            with cd(path.join("support", "android", "build-apk")):
+                subprocess.check_call(["cargo", "run", "--", dev_flag, "-o", output_apk, "-t", target_dir,
+                                       "-r", self.get_top_dir()], env=env)
+        except subprocess.CalledProcessError as e:
+            print("Packaging Android exited with return value %d" % e.returncode)
+            return e.returncode

support/android-rs-glue

@@ -1 +0,0 @@
-Subproject commit a5b6234ef140b0b7e67142ef7c5c41dd526b8d62

support/android/apk/AndroidManifest.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- BEGIN_INCLUDE(manifest) -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="com.mozilla.servo"
+        android:versionCode="1"
+        android:versionName="1.0">
+
+    <uses-sdk android:minSdkVersion="18" />
+
+    <uses-feature android:glEsVersion="0x00020000" android:required="true"></uses-feature>
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+    <application android:label="Servo" android:icon="@mipmap/servo">
+        <activity android:name="com.mozilla.servo.MainActivity"
+                android:label="Servo"
+                android:configChanges="orientation|keyboardHidden">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
+<!-- END_INCLUDE(manifest) -->

support/android/apk/build.xml

@@ -0,0 +1,92 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="Servo" default="help">
+
+    <!-- The local.properties file is created and updated by the 'android' tool.
+         It contains the path to the SDK. It should *NOT* be checked into
+         Version Control Systems. -->
+    <property file="local.properties" />
+
+    <!-- The ant.properties file can be created by you. It is only edited by the
+         'android' tool to add properties to it.
+         This is the place to change some Ant specific build properties.
+         Here are some properties you may want to change/update:
+
+         source.dir
+             The name of the source directory. Default is 'src'.
+         out.dir
+             The name of the output directory. Default is 'bin'.
+
+         For other overridable properties, look at the beginning of the rules
+         files in the SDK, at tools/ant/build.xml
+
+         Properties related to the SDK location or the project target should
+         be updated using the 'android' tool with the 'update' action.
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems.
+
+         -->
+    <property file="ant.properties" />
+
+    <!-- if sdk.dir was not set from one of the property file, then
+         get it from the ANDROID_HOME env var.
+         This must be done before we load project.properties since
+         the proguard config can use sdk.dir -->
+    <property environment="env" />
+    <condition property="sdk.dir" value="${env.ANDROID_HOME}">
+        <isset property="env.ANDROID_HOME" />
+    </condition>
+
+    <!-- The project.properties file is created and updated by the 'android'
+         tool, as well as ADT.
+
+         This contains project specific properties such as project target, and library
+         dependencies. Lower level build properties are stored in ant.properties
+         (or in .classpath for Eclipse projects).
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems. -->
+    <loadproperties srcFile="project.properties" />
+
+    <!-- quick check on sdk.dir -->
+    <fail
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through the ANDROID_HOME environment variable."
+            unless="sdk.dir"
+    />
+
+    <!--
+        Import per project custom build rules if present at the root of the project.
+        This is the place to put custom intermediary targets such as:
+            -pre-build
+            -pre-compile
+            -post-compile (This is typically used for code obfuscation.
+                           Compiled code location: ${out.classes.absolute.dir}
+                           If this is not done in place, override ${out.dex.input.absolute.dir})
+            -post-package
+            -post-build
+            -pre-clean
+    -->
+    <import file="custom_rules.xml" optional="true" />
+
+    <!-- Import the actual build file.
+
+         To customize existing targets, there are two options:
+         - Customize only one target:
+             - copy/paste the target into this file, *before* the
+               <import> task.
+             - customize it to your needs.
+         - Customize the whole content of build.xml
+             - copy/paste the content of the rules files (minus the top node)
+               into this file, replacing the <import> task.
+             - customize to your needs.
+
+         ***********************
+         ****** IMPORTANT ******
+         ***********************
+         In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+         in order to avoid having your file be overridden by tools such as "android update project"
+    -->
+    <!-- version-tag: 1 -->
+    <import file="${sdk.dir}/tools/ant/build.xml" />
+
+</project>

support/android/apk/jni/Android.mk

@@ -0,0 +1,22 @@
+# Copyright (C) 2010 The Android Open Source Project
+#
+# 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.
+#
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := servo
+LOCAL_SRC_FILES := $(TARGET_ARCH_ABI)/libmain.so
+include $(PREBUILT_SHARED_LIBRARY)
+
+# $(call import-module)

support/android/apk/jni/Application.mk

@@ -0,0 +1,2 @@
+APP_ABI := armeabi
+APP_PLATFORM := android-18

support/android/apk/jni/main.c

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * 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.
+ *
+ */
+
+//BEGIN_INCLUDE(all)
+#include <jni.h>
+#include <errno.h>
+#include <dlfcn.h>
+#include <stdlib.h>
+
+#include <android/log.h>
+#include <android_native_app_glue.h>
+
+#define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "servo-wrapper", __VA_ARGS__))
+#define LOGW(...) ((void)__android_log_print(ANDROID_LOG_WARN, "servo-wrapper", __VA_ARGS__))
+
+/**
+ * This is the main entry point of a native application that is using
+ * android_native_app_glue.  It runs in its own thread, with its own
+ * event loop for receiving input events and doing other things.
+ */
+void android_main(struct android_app* state) {
+    LOGI("in android_main");
+    void* libservo = dlopen("libservo.so", RTLD_NOW);
+    if (libservo == NULL) {
+        LOGI("failed to load servo lib: %s", dlerror());
+        return;
+    }
+
+    LOGI("loaded libservo.so");
+    void (*android_main)(struct android_app*);
+    *(void**)(&android_main) = dlsym(libservo, "android_main");
+    if (android_main) {
+        LOGI("go into android_main()");
+        (*android_main)(state);
+        return;
+    }
+}
+//END_INCLUDE(all)
+
+int main(int argc, char* argv[])
+{
+    LOGI("WAT");
+    return 0;
+}

support/android/apk/project.properties

@@ -0,0 +1 @@
+target=android-18

support/android/apk/src/com/mozilla/servo/MainActivity.java

@@ -0,0 +1,8 @@
+package com.mozilla.servo;
+import android.util.Log;
+
+public class MainActivity extends android.app.NativeActivity {
+    static {
+        Log.i("servo_wrapper", "Loading the NativeActivity");
+    }
+}

support/android/build-apk/Cargo.lock

@@ -0,0 +1,4 @@
+[root]
+name = "build-apk"
+version = "0.0.1"
+

support/android/build-apk/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+
+name = "build-apk"
+version = "0.0.1"
+authors = ["Pierre Krieger <pierre.krieger1708@gmail.com>", "The Servo Project Developers"]
+
+[[bin]]
+name = "build-apk"
+path = "src/main.rs"
+test = false
+doc = false
+bench = false
+

support/android/build-apk/src/main.rs

@@ -0,0 +1,302 @@
+/* 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/. */
+
+//extern crate num;
+#![feature(dir_builder, fs_walk)]
+use std::collections::{HashMap, HashSet};
+use std::env;
+use std::fs;
+use std::fs::DirBuilder;
+use std::path::{Path, PathBuf};
+use std::process;
+use std::process::{Command, Stdio};
+
+fn main() {
+    let (args, passthrough) = parse_arguments();
+
+    // Find all the native shared libraries that exist in the target directory.
+    let native_shared_libs = find_native_libs(&args);
+
+    // Get the SDK path from the ANDROID_HOME env.
+    let sdk_path = env::var("ANDROID_HOME").ok().expect("Please set the ANDROID_HOME environment variable");
+    let sdk_path = Path::new(&sdk_path);
+
+    // Get the NDK path from NDK_HOME env.
+    let ndk_path = env::var("NDK_HOME").ok().expect("Please set the NDK_HOME environment variable");
+    let ndk_path = Path::new(&ndk_path);
+
+    // Get the standalone NDK path from NDK_STANDALONE env.
+    //  let standalone_path = env::var("NDK_STANDALONE").ok().unwrap_or("/opt/ndk_standalone".to_string());
+    //  let standalone_path = Path::new(&standalone_path);
+
+    let debug = passthrough.contains(&"-d".to_string());
+
+    // Set the build directory that will contain all the necessary files to create the apk
+    let directory = args.root_path.join("support").join("android").join("apk");
+    let resdir = args.root_path.join("resources/");
+
+    // executing ndk-build
+    env::set_var("V", "1");
+    if debug {
+        env::set_var("NDK_DEBUG", "1");
+        env::set_var("APP_OPTIM", "0");
+    } else{
+        // Overrides android:debuggable propery in the .xml file.
+        env::set_var("APP_OPTIM", "1");
+    }
+
+    // Copy libservo.so into the jni folder for inclusion in the build
+    // TODO: pass/detect target architecture
+    {
+        let source = &args.target_path.join("libservo.so");
+        let target_dir = &directory.join("jni").join("armeabi");
+        let _ = DirBuilder::new().recursive(true).create(target_dir);
+        let target = target_dir.join("libmain.so");
+        println!("Copying the file {:?} to {:?}", source, target);
+        fs::copy(source, target).unwrap();
+    }
+
+    let ndkcmd = Command::new(ndk_path.join("ndk-build"))
+                              .arg("-B")
+                              .stdout(Stdio::inherit())
+                              .stderr(Stdio::inherit())
+                              .current_dir(directory.clone())
+                              .status();
+    if ndkcmd.is_err() || ndkcmd.unwrap().code().unwrap() != 0 {
+        println!("Error while executing program `ndk-build`, or missing program.");
+        process::exit(1);
+    }
+
+    // Copy the additional native libs into the libs directory.
+    for (name, path) in native_shared_libs.iter() {
+        let target = &directory.join("libs").join("armeabi").join(name);
+        println!("Copying the file {:?} to {:?}", name, target);
+        fs::copy(path, target).unwrap();
+    }
+
+    // Copy over the resources
+    let cpcmd= Command::new("cp")
+                            .arg("-R")
+                            .arg(&resdir)
+                            .arg(&directory.join("assets"))
+                            .stdout(Stdio::inherit())
+                            .stderr(Stdio::inherit())
+                            .current_dir(directory.clone())
+                            .status();
+    if cpcmd.is_err() || cpcmd.unwrap().code().unwrap() != 0 {
+        println!("Error while copying files from the resources dir to the assets dir");
+        process::exit(1);
+    }
+
+    // Update the project
+    let androidcmd = Command::new(sdk_path.join("tools").join("android"))
+                                  .arg("update")
+                                  .arg("project")
+                                  .arg("--name")
+                                  .arg("Servo")
+                                  .arg("--target")
+                                  .arg("android-18")
+                                  .arg("--path")
+                                  .arg(".")
+                                  .stdout(Stdio::inherit())
+                                  .stderr(Stdio::inherit())
+                                  .current_dir(directory.clone())
+                                  .status();
+    if androidcmd.is_err() || androidcmd.unwrap().code().unwrap() != 0 {
+        println!("Error while updating the project with the android command");
+        process::exit(1);
+    }
+
+    // Build the APK
+    let mut antcmd = Command::new("ant");
+    if debug {
+        antcmd.arg("debug");
+    } else {
+        antcmd.arg("release");
+    }
+    let antresult = antcmd
+        .stdout(Stdio::inherit())
+        .stderr(Stdio::inherit())
+        .current_dir(directory.clone())
+        .status();
+    if antresult.is_err() || antresult.unwrap().code().unwrap() != 0 {
+        println!("Error while executing program `ant`, or missing program.");
+        process::exit(1);
+    }
+
+    // Copying apk file to the requested output
+    // Release builds also need to be signed. For now, we use a simple debug
+    // signing key.
+    if debug {
+        fs::copy(&directory.join("bin").join("Servo-debug.apk"),
+                 &args.output).unwrap();
+    } else {
+        let keystore_dir = env::home_dir().expect("Please have a home directory");
+        let keystore_dir = Path::new(&keystore_dir).join(".keystore");
+        let keytoolcmd = Command::new("keytool")
+                                  .arg("-list")
+                                  .arg("-storepass")
+                                  .arg("android")
+                                  .arg("-alias")
+                                  .arg("androiddebugkey")
+                                  .arg("-keystore")
+                                  .arg(&keystore_dir)
+                                  .stdout(Stdio::inherit())
+                                  .stderr(Stdio::inherit())
+                                  .current_dir(directory.clone())
+                                  .status();
+        if keytoolcmd.is_err() || keytoolcmd.unwrap().code().unwrap() != 0 {
+            let keytoolcreatecmd = Command::new("keytool")
+                                  .arg("-genkeypair")
+                                  .arg("-keystore")
+                                  .arg(&keystore_dir)
+                                  .arg("-storepass")
+                                  .arg("android")
+                                  .arg("-alias")
+                                  .arg("androiddebugkey")
+                                  .arg("-keypass")
+                                  .arg("android")
+                                  .arg("-dname")
+                                  .arg("CN=Android Debug,O=Android,C=US")
+                                  .arg("-keyalg")
+                                  .arg("RSA")
+                                  .arg("-validity")
+                                  .arg("365")
+                                  .stdout(Stdio::inherit())
+                                  .stderr(Stdio::inherit())
+                                  .current_dir(directory.clone())
+                                  .status();
+            if keytoolcreatecmd.is_err() || 
+               keytoolcreatecmd.unwrap().code().unwrap() != 0 {
+                   println!("Error while using `keytool` to create the debug keystore.");
+                   process::exit(1);
+               }
+        }
+
+        let jarsigncmd = Command::new("jarsigner")
+                                  .arg("-digestalg")
+                                  .arg("SHA1")
+                                  .arg("-sigalg")
+                                  .arg("MD5withRSA")
+                                  .arg("-storepass")
+                                  .arg("android")
+                                  .arg("-keystore")
+                                  .arg(&keystore_dir)
+                                  .arg(&directory.join("bin").join("Servo-release-unsigned.apk"))
+                                  .arg("androiddebugkey")
+                                  .stdout(Stdio::inherit())
+                                  .stderr(Stdio::inherit())
+                                  .current_dir(directory.clone())
+                                  .status();
+        if jarsigncmd.is_err() || jarsigncmd.unwrap().code().unwrap() != 0 {
+            println!("Error while using `jarsign` to sign the APK.");
+            process::exit(1);
+        }
+                 
+        let aligncmd = Command::new(sdk_path.join("tools").join("zipalign"))
+                                  .arg("-f")
+                                  .arg("-v")
+                                  .arg("4")
+                                  .arg(&directory.join("bin").join("Servo-release-unsigned.apk"))
+                                  .arg(&directory.join("bin").join("Servo-release.apk"))
+                                  .stdout(Stdio::inherit())
+                                  .stderr(Stdio::inherit())
+                                  .current_dir(directory.clone())
+                                  .status();
+        if aligncmd.is_err() || aligncmd.unwrap().code().unwrap() != 0 {
+            println!("Error while using `zipalign` to sign the APK.");
+            process::exit(1);
+        }
+        
+        fs::copy(&directory.join("bin").join("Servo-release.apk"),
+                 &args.output).unwrap();
+    }
+
+}
+
+struct Args {
+    output: PathBuf,
+    root_path: PathBuf,
+    target_path: PathBuf,
+    shared_libraries: HashSet<String>,
+}
+
+fn parse_arguments() -> (Args, Vec<String>) {
+    let mut result_output = None;
+    let mut result_root_path = None;
+    let mut result_target_path = None;
+    let mut result_shared_libraries = HashSet::new();
+    let mut result_passthrough = Vec::new();
+
+    let args = env::args();
+    let mut args = args.skip(1);
+
+    loop {
+        let arg = match args.next() {
+            None => return (
+                Args {
+                    output: result_output.expect("Could not find -o argument"),
+                    root_path: result_root_path.expect("Could not find -r enlistment root argument"),
+                    target_path: result_target_path.expect("Could not find -t target path argument"),
+                    shared_libraries: result_shared_libraries,
+                },
+                result_passthrough
+            ),
+            Some(arg) => arg
+        };
+
+        match &*arg {
+            "-o" => {
+                result_output = Some(PathBuf::from(args.next().expect("-o must be followed by the output name")));
+            },
+            "-r" => {
+                result_root_path = Some(PathBuf::from(args.next().expect("-r must be followed by the enlistment root directory")));
+            },
+            "-t" => {
+                result_target_path = Some(PathBuf::from(args.next().expect("-t must be followed by the target output directory")));
+            },
+            "-l" => {
+                let name = args.next().expect("-l must be followed by a library name");
+                result_shared_libraries.insert(vec!["lib", &name, ".so"].concat());
+
+                // Also pass these through.
+                result_passthrough.push(arg);
+                result_passthrough.push(name);
+            }
+            _ => {
+                if arg.starts_with("-l") {
+                    result_shared_libraries.insert(vec!["lib", &arg[2..], ".so"].concat());
+                }
+                result_passthrough.push(arg)
+            }
+        };
+    }
+}
+
+fn find_native_libs(args: &Args) -> HashMap<String, PathBuf> {
+    let mut native_shared_libs: HashMap<String, PathBuf> = HashMap::new();
+
+    // Add requested .so files
+    fs::walk_dir(&args.target_path).and_then(|dir_walker| {
+        for path in dir_walker {
+            let path = path.unwrap().path();
+            match (path.file_name(), path.extension()) {
+                (Some(filename), Some(ext)) => {
+                    let filename = filename.to_str().unwrap();
+                    if filename.starts_with("lib")
+                        && ext == "so"
+                        && args.shared_libraries.contains(filename) {
+                            println!("Adding the file {:?}", filename);
+                            native_shared_libs.insert(filename.to_string(), path.clone());
+                            break;
+                        }
+                }
+                _ => {}
+            }
+        }
+        Ok(())
+    }).ok();
+
+    native_shared_libs
+}