<?xml version="1.0" encoding="UTF-8"?>
<project name="android_rules" default="debug">

    <!--
        This rules file is meant to be imported by the custom Ant task:
            com.android.ant.AndroidInitTask

        The following properties are put in place by the importing task:
            android-jar, android-aidl, aapt, aidl, and dx

        Additionnaly, the task sets up the following classpath reference:
            android.target.classpath
        This is used by the compiler task as the boot classpath.
    -->

    <!-- Custom tasks -->
    <taskdef name="aaptexec"
        classname="com.android.ant.AaptExecLoopTask"
        classpathref="android.antlibs"/>

    <taskdef name="apkbuilder"
        classname="com.android.ant.ApkBuilderTask"
        classpathref="android.antlibs"/>

    <!-- Properties -->

    <property name="android-tools" value="${sdk-location}/tools" />

    <!-- Input directories -->
    <property name="source-folder" value="src" />
    <property name="gen-folder" value="gen" />
    <property name="resource-folder" value="res" />
    <property name="asset-folder" value="assets" />
    <property name="source-location" value="${basedir}/${source-folder}" />

    <!-- folder for the 3rd party java libraries -->
    <property name="external-libs-folder" value="libs" />

    <!-- folder for the native libraries -->
    <property name="native-libs-folder" value="libs" />

    <!-- Output directories -->
    <property name="gen-folder" value="gen" />
    <property name="out-folder" value="bin" />
    <property name="out-classes" value="${out-folder}/classes" />
    <property name="out-classes-location" value="${basedir}/${out-classes}"/>
    <!-- out folders for a parent project if this project is an instrumentation project -->
    <property name="main-out-folder" value="../${out-folder}" />
    <property name="main-out-classes" value="${main-out-folder}/classes"/>

    <!-- Intermediate files -->
    <property name="dex-file" value="classes.dex" />
    <property name="intermediate-dex" value="${out-folder}/${dex-file}" />
    <!-- dx does not properly support incorrect / or \ based on the platform
         and Ant cannot convert them because the parameter is not a valid path.
         Because of this we have to compute different paths depending on the platform. -->
    <condition property="intermediate-dex-location"
            value="${basedir}\${intermediate-dex}"
            else="${basedir}/${intermediate-dex}" >
        <os family="windows"/>
    </condition>

    <!-- The final package file to generate -->
    <property name="out-debug-unaligned-package" value="${out-folder}/${ant.project.name}-debug-unaligned.apk"/>
    <property name="out-debug-package" value="${out-folder}/${ant.project.name}-debug.apk"/>
    <property name="out-unsigned-package" value="${out-folder}/${ant.project.name}-unsigned.apk"/>
    <property name="out-unaligned-package" value="${out-folder}/${ant.project.name}-unaligned.apk"/>
    <property name="out-release-package" value="${out-folder}/${ant.project.name}-release.apk"/>

    <!-- Tools -->
    <condition property="exe" value=".exe" else=""><os family="windows"/></condition>
    <property name="adb" value="${android-tools}/adb${exe}"/>
    <property name="zipalign" value="${android-tools}/zipalign${exe}" />

    <!-- rules -->

    <!-- Create the output directories if they don't exist yet. -->
    <target name="dirs">
        <echo>Creating output directories if needed...</echo>
        <mkdir dir="${resource-folder}" />
        <mkdir dir="${external-libs-folder}" />
        <mkdir dir="${gen-folder}" />
        <mkdir dir="${out-folder}" />
        <mkdir dir="${out-classes}" />
    </target>

    <!-- Generate the R.java file for this project's resources. -->
    <target name="resource-src" depends="dirs">
        <echo>Generating R.java / Manifest.java from the resources...</echo>
        <exec executable="${aapt}" failonerror="true">
            <arg value="package" />
            <arg value="-m" />
            <arg value="-J" />
            <arg path="${gen-folder}" />
            <arg value="-M" />
            <arg path="AndroidManifest.xml" />
            <arg value="-S" />
            <arg path="${resource-folder}" />
            <arg value="-I" />
            <arg path="${android-jar}" />
        </exec>
    </target>

    <!-- Generate java classes from .aidl files. -->
    <target name="aidl" depends="dirs">
        <echo>Compiling aidl files into Java classes...</echo>
        <apply executable="${aidl}" failonerror="true">
            <arg value="-p${android-aidl}" />
            <arg value="-I${source-folder}" />
            <arg value="-o${gen-folder}" />
            <fileset dir="${source-folder}">
                <include name="**/*.aidl"/>
            </fileset>
        </apply>
    </target>

    <!-- Compile this project's .java files into .class files. -->
    <target name="compile" depends="resource-src, aidl">
        <javac encoding="ascii" target="1.5" debug="true" extdirs=""
                destdir="${out-classes}"
                bootclasspathref="android.target.classpath">
            <src path="${source-folder}" />
            <src path="${gen-folder}" />
            <classpath>
                <fileset dir="${external-libs-folder}" includes="*.jar"/>
                <pathelement path="${main-out-classes}"/>
            </classpath>
         </javac>
    </target>

    <!-- Convert this project's .class files into .dex files. -->
    <target name="dex" depends="compile">
        <echo>Converting compiled files and external libraries into ${out-folder}/${dex-file}...</echo>
        <apply executable="${dx}" failonerror="true" parallel="true">
            <arg value="--dex" />
            <arg value="--output=${intermediate-dex-location}" />
            <arg path="${out-classes-location}" />
            <fileset dir="${external-libs-folder}" includes="*.jar"/>
        </apply>
    </target>

    <!-- Put the project's resources into the output package file
         This actually can create multiple resource package in case
         Some custom apk with specific configuration have been
         declared in default.properties.
         -->
    <target name="package-resources">
        <echo>Packaging resources</echo>
        <aaptexec executable="${aapt}"
                command="package"
                manifest="AndroidManifest.xml"
                resources="${resource-folder}"
                assets="${asset-folder}"
                androidjar="${android-jar}"
                outfolder="${out-folder}"
                basename="${ant.project.name}" />
    </target>

    <!-- Package the application and (maybe) sign it with a debug key.
         This requires the property sign.package to be set to true or false. -->
    <target name="package">
        <apkbuilder
                outfolder="${out-folder}"
                basename="${ant.project.name}"
                signed="${sign.package}"
                verbose="true">
            <file path="${intermediate-dex}" />
            <sourcefolder path="${source-folder}" />
            <jarfolder path="${external-libs-folder}" />
            <nativefolder path="${native-libs-folder}" />
        </apkbuilder>
    </target>

    <target name="no-sign">
       <property name="sign.package" value="false" />
    </target>

    <target name="debug-sign">
       <property name="sign.package" value="true" />
    </target>

    <target name="debug" depends="dex, package-resources, debug-sign, package">
        <echo>Running zip align on final apk...</echo>
        <exec executable="${zipalign}" failonerror="true">
            <arg value="-f" />
            <arg value="4" />
            <arg path="${out-debug-unaligned-package}" />
            <arg path="${out-debug-package}" />
        </exec>
        <echo>Debug Package: ${out-debug-package}</echo>
    </target>

    <target name="release-package" depends="dex, package-resources, no-sign, package">
    </target>

    <target name="release.check">
        <condition property="release.sign">
            <and>
                <isset property="key.store" />
                <isset property="key.alias" />
            </and>
        </condition>
    </target>
    <target name="release.nosign" depends="release.check" unless="release.sign">
        <echo>No key.store and key.alias properties found in build.properties.</echo>
        <echo>Please sign ${out-unsigned-package} manually</echo>
        <echo>and run zipalign from the Android SDK tools.</echo>
    </target>

    <target name="release" depends="release-package, release.nosign" if="release.sign">
        <!-- get passwords -->
        <input
                message="Please enter keystore password (store:${key.store}):"
                addproperty="key.store.password"/>
        <input
                message="Please enter password for alias '${key.alias}':"
                addproperty="key.alias.password"/>
        <!-- sign the APK -->
        <echo>Signing final apk...</echo>
        <signjar
                jar="${out-unsigned-package}"
                signedjar="${out-unaligned-package}"
                keystore="${key.store}"
                storepass="${key.store.password}"
                alias="${key.alias}"
                keypass="${key.alias.password}"/>
        <!-- zip align the APK -->
        <echo>Running zip align on final apk...</echo>
        <exec executable="${zipalign}" failonerror="true">
            <arg value="-f" />
            <arg value="4" />
            <arg path="${out-unaligned-package}" />
            <arg path="${out-release-package}" />
        </exec>
        <echo>Release Package: ${out-release-package}</echo>
    </target>

    <!-- Install the package on the default emulator -->
    <target name="install" depends="debug">
        <echo>Installing ${out-debug-package} onto default emulator...</echo>
        <exec executable="${adb}" failonerror="true">
            <arg value="install" />
            <arg value="-r" />
            <arg path="${out-debug-package}" />
        </exec>
    </target>

    <!-- Uinstall the package from the default emulator -->
    <target name="uninstall.check">
        <condition property="uninstall.run">
           <isset property="application-package" />
        </condition>
    </target>
    <target name="uninstall.error" depends="uninstall.check" unless="uninstall.run">
        <echo>Unable to run 'ant unintall', application-package is not defined in build.properties</echo>
    </target>
    <target name="uninstall" depends="uninstall.error" if="uninstall.run">
        <echo>Uninstalling ${application-package} from the default emulator...</echo>
        <exec executable="${adb}" failonerror="true">
            <arg value="uninstall" />
            <arg value="${application-package}" />
        </exec>
    </target>
    
    <target name="help">
        <!-- displays starts at col 13
              |13                                                              80| -->
        <echo>Android Ant Build. Available targets:</echo>
        <echo>   help:      Displays this help.</echo>
        <echo>   debug:     Builds the application and sign it with a debug key.</echo>
        <echo>   release:   Builds the application. The generated apk file must be</echo>
        <echo>              signed before it is published.</echo>
        <echo>   install:   Installs/reinstall the debug package onto a running</echo>
        <echo>              emulator or device.</echo>
        <echo>              If the application was previously installed, the</echo>
        <echo>              signatures must match.</echo>
        <echo>   uninstall: uninstall the application from a running emulator or</echo>
        <echo>              device.</echo>
    </target>
</project>