build.xml

<!--
     Areca's ant compilation script
     Builds Areca's main jar file (areca.jar) and library file (libarecafs.so ... for unix-like operating systems)

     Syntax : ant -buildfile compile.xml
-->

<project name="Areca compilation" default="compileall" xmlns:ivy="antlib:org.apache.ivy.ant">
    <description>Areca's compilation script</description>

    <property name="root" value="."/>

    <!-- Path to SWT libraries (download the SWT package if this file is missing on your system) -->
    <property name="swtfile" value="${root}/lib/swt.jar"/>
    <property name="scripts.dir" value="${root}/building/scripts"/>

    <import file="${scripts.dir}/swt-platform.xml"/>
    <import file="${scripts.dir}/dependency-manager.xml"/>
    <import file="${scripts.dir}/bundlers.xml"/>

    <!-- Test the OS -->
    <condition property="isWindows">
        <and>
            <os family="windows"/>
        </and>
    </condition>

    
    <!-- (2017) javah until Java 9 -->
    <available property="javah.present" file="javah" type="file"/>

    <target name="generate-jni-header-until-java-9" if="javah.present" description="javah until Java 9 (2017)">
        <javah destdir="${root}/jni" force="yes" classpath="${root}/lib/areca.jar">
            <class name="com.myJava.file.metadata.posix.jni.wrapper.FileAccessWrapper"/>
        </javah>
    </target>

    <target name="generate-jni-header-since-java-10" unless="javah.present">
        <exec dir="${root}" executable="javac">
            <arg value="-h"/>
            <arg value="${root}/jni"/>
            <arg value="-classpath"/>
            <arg value="${root}/lib/areca.jar"/>
            <arg value="${root}/src/com/myJava/file/metadata/posix/jni/wrapper/FileAccessWrapper.java"/>
        </exec>
    </target>


    <target name="compilejava">
        <description>Java compilation task (builds areca.jar)</description>

        <delete dir="${root}/classes"/>
        <mkdir dir="${root}/classes"/>

        <javac srcdir="${root}/src"
               destdir="${root}/classes"
               debug="off"
               source="8"
               encoding="ISO-8859-1"
        >
            <classpath>
                <fileset dir="${root}/lib">
                    <include name="**/*.jar"/>
                </fileset>
                <fileset file="${swtfile}"/>
            </classpath>
        </javac>

        <jar destfile="${root}/lib/areca.jar">
            <fileset dir="${root}/classes"/>
            <fileset dir="${root}">
                <include name="icons/**"/>
            </fileset>
        </jar>

        <delete dir="${root}/classes"/>
    </target>

    <target name="jnicheck" if="isWindows">
        <echo>No JNI needed on Windows</echo>
    </target>

    <target name="compilejni" unless="isWindows">
        <description>JNI compilation task (builds libarecafs.so ... for unix-like operating systems only)</description>
        <!--Generate the JNI header-->
        <antcall target="generate-jni-header-until-java-9"/>
        <antcall target="generate-jni-header-since-java-10"/>

        <chmod file="${scripts.dir}/install-c-header-dependencies-from-dep-packges.sh" perm="755" type="file"/>
        <exec dir="${scripts.dir}" executable="./install-c-header-dependencies-from-dep-packges.sh" os="Linux"/>

        <chmod file="${scripts.dir}/locate-jni-headers.sh" perm="755" type="file"/>
        <exec dir="${scripts.dir}" executable="./locate-jni-headers.sh" os="Linux" outputproperty="jni.h.dir"/>
        <available type="file" file="${jni.h.dir}/linux/jni_md.h" property="jni_md.h.dir" value="${jni.h.dir}/linux"/>

        <chmod file="${scripts.dir}/locate-jni-headers.sh" perm="755" type="file"/>
        <exec dir="${scripts.dir}" executable="./locate-jni-headers.sh" os="Linux" outputproperty="jni.h.dir"/>
        <available type="file" file="${jni.h.dir}/linux/jni_md.h" property="jni_md.h.dir" value="${jni.h.dir}/linux"/>

        <!-- Compile the JNI code -->
        <exec dir="${root}/jni" executable="gcc">
            <arg value="-c"/>
            <arg value="-fPIC"/>
            <arg value="-lacl"/>
            <arg value="com_myJava_file_metadata_posix_jni_wrapper_FileAccessWrapper.c"/>
            <arg value="-o"/>
            <arg value="com_myJava_file_metadata_posix_jni_wrapper_FileAccessWrapper.o"/>
            <arg value="-I${jni.h.dir}"/>
            <arg value="-I${jni_md.h.dir}"/>
        </exec>
        <exec dir="${root}/jni" executable="gcc">
            <arg value="-shared"/>
            <arg value="-lacl"/>
            <arg value="-o"/>
            <arg value="libarecafs.so"/>
            <arg value="com_myJava_file_metadata_posix_jni_wrapper_FileAccessWrapper.o"/>
        </exec>
        <delete file="${root}/jni/com_myJava_file_metadata_posix_jni_wrapper_FileAccessWrapper.o"/>
        <delete file="${root}/jni/com_myJava_file_metadata_posix_jni_wrapper_FileAccessWrapper.h"/>
        <move file="${root}/jni/libarecafs.so" todir="${root}/lib"/>
    </target>
    
    <target name="setpermissions" unless="isWindows">
        <description>Set executable permissions</description>
        
        <chmod perm="755">
            <fileset dir="${root}/bin">
                <include name="**"/>
            </fileset>
            <fileset dir="${root}/jni">
                <include name="*.sh"/>
            </fileset>
            <fileset dir="${root}/building/scripts">
                <include name="*.sh"/>
            </fileset>
            <fileset dir="${root}">
                <include name="*.sh"/>
            </fileset>
        </chmod>
    </target>

    <target name="compileall">
        <description>Global compilation task (builds areca.jar and libarecafs.so)</description>
        <antcall target="get-java-dependencies"/>
        <antcall target="compilejava"/>
        <antcall target="jnicheck"/>
        <antcall target="compilejni"/>
        <antcall target="setpermissions"/>
    </target>
</project>