build.xml

<!--

    Copyright (c) 2010 by Timothy W Macinta, All Rights Reserved.

    This file can be used to compile and package the Fast MD5
    distribution.

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    See http://www.twmacinta.com/myjava/fast_md5.php for more
    information on this package.

    @author Tim Macinta (twm@alum.mit.edu)

-->
<project name="FastMD5" default="dist" basedir=".">
    
    <!-- Initialize project-wide settings -->
    <target name="init">
        
        <!-- Load custom settings.  To customize your build, create a
        file with this name and add the properties you wish to
        customize. -->
        
        <property file="build.local.properties" />

        <property name="project-version" value="2.7.1"/>

        
        <!-- Define default settings (see above to override) -->
        
        <property name="build_dir" location="targ" />
        <dirname property="jdk_home" file="${java.home}" />
        <property name="mingw64_gcc" location="C:/MinGW/mingw64/bin/x86_64-w64-mingw32-gcc.exe" />
        <property name="mingw64_strip" location="C:/MinGW/mingw64/bin/x86_64-w64-mingw32-strip.exe" />
        
        <!-- Enforce minimum Ant version -->
        
        <property name="min_ant_version" value="1.5.2" />
        <condition property="ant_version_ok">
            <or>
                <contains string="${ant.version}" substring=" version 1.5.2" />
                <contains string="${ant.version}" substring=" version 1.5.3" />
                <contains string="${ant.version}" substring=" version 1.5.4" />
                <contains string="${ant.version}" substring=" version 1.6" />
            </or>
        </condition>
        <antcall target="_check_ant_version" />
        
        <!-- detect darwin_ppc -->
        
        <condition property="platform_darwin_ppc">
            <os family="mac" arch="ppc" />
        </condition>
        <condition property="platform" value="darwin_ppc">
            <isset property="platform_darwin_ppc" />
        </condition>
        <condition property="platform_darwin">
            <isset property="platform_darwin_ppc" />
        </condition>
        
        <!-- detect darwin_x86 -->
        
        <condition property="platform_darwin_x86">
            <or>
                <os family="mac" arch="x86" />
                <os family="mac" arch="i386" />
                <os family="mac" arch="i486" />
                <os family="mac" arch="i586" />
                <os family="mac" arch="i686" />
            </or>
        </condition>
        <condition property="platform" value="darwin_x86">
            <isset property="platform_darwin_x86" />
        </condition>
        <condition property="platform_darwin">
            <isset property="platform_darwin_x86" />
        </condition>
        
        <!-- detect darwin_x86_64 -->
        
        <condition property="platform_darwin_x86_64">
            <os family="mac" arch="x86_64" />
        </condition>
        <condition property="platform" value="darwin_x86_64">
            <isset property="platform_darwin_x86_64" />
        </condition>
        <condition property="platform_darwin">
            <isset property="platform_darwin_x86_64" />
        </condition>
        
        <!-- detect linux_x86 -->
        
        <condition property="platform_linux_x86">
            <or>
                <os name="Linux" arch="x86" />
                <os name="Linux" arch="i386" />
                <os name="Linux" arch="i486" />
                <os name="Linux" arch="i586" />
                <os name="Linux" arch="i686" />
            </or>
        </condition>
        <condition property="platform" value="linux_x86">
            <isset property="platform_linux_x86" />
        </condition>
        <condition property="platform_linux">
            <isset property="platform_linux_x86" />
        </condition>
        
        <!-- detect linux_amd64 -->
        
        <condition property="platform_linux_amd64">
            <os name="Linux" arch="amd64" />
        </condition>
        <condition property="platform" value="linux_amd64">
            <isset property="platform_linux_amd64" />
        </condition>
        <condition property="platform_linux">
            <isset property="platform_linux_amd64" />
        </condition>
        
        <!-- detect freebsd_x86 -->
        
        <condition property="platform_freebsd_x86">
            <or>
                <os name="freebsd" arch="x86" />
                <os name="freebsd" arch="i386" />
                <os name="freebsd" arch="i486" />
                <os name="freebsd" arch="i586" />
                <os name="freebsd" arch="i686" />
            </or>
        </condition>
        <condition property="platform" value="freebsd_x86">
            <isset property="platform_freebsd_x86" />
        </condition>
        <condition property="platform_freebsd">
            <isset property="platform_freebsd_x86" />
        </condition>
        
        <!-- detect freebsd_amd64 -->
        
        <condition property="platform_freebsd_amd64">
            <os name="freebsd" arch="amd64" />
        </condition>
        <condition property="platform" value="freebsd_amd64">
            <isset property="platform_freebsd_amd64" />
        </condition>
        <condition property="platform_freebsd">
            <isset property="platform_freebsd_amd64" />
        </condition>
        
        <!-- detect win32_x86 -->
        
        <condition property="platform_win32_x86">
            <or>
                <os family="windows" arch="x86" />
                <os family="windows" arch="i386" />
                <os family="windows" arch="i486" />
                <os family="windows" arch="i586" />
                <os family="windows" arch="i686" />
            </or>
        </condition>
        <condition property="platform" value="win32_x86">
            <isset property="platform_win32_x86" />
        </condition>
        
        <!-- detect win_amd64 -->
        
        <condition property="platform_win_amd64">
            <os family="windows" arch="amd64" />
        </condition>
        <condition property="platform" value="win_amd64">
            <isset property="platform_win_amd64" />
        </condition>
        
        <!-- report detected platform -->
        
        <echo message="Current platform: ${platform}" />
    </target>


    <!-- Deletes build directory -->
    <target name="clean" depends="init">
        <delete dir="${build_dir}" />
    </target>

    <!-- Creates the documentation -->
    <target name="doc" depends="init">
        <javadoc sourcepath="src/main/java" destdir="${build_dir}/javadoc" />
    </target>


    <!-- Package for distribution -->
    <target name="dist" depends="init,check_libs,doc">
        
        <!-- create directory to gather together files -->
        
        <property name="dist_dir" location="${build_dir}/fast-md5"/>
        <delete dir="${dist_dir}"/>
        <mkdir dir="${dist_dir}"/>
        
        <!-- copy files to the official directory structure -->
        
        <copy todir="${dist_dir}">
            <fileset dir=".">
                <exclude name="targ/**" />
                <exclude name="build.local.properties" />
            </fileset>
        </copy>
        <copy todir="${dist_dir}">
            <fileset dir="${build_dir}">
                <include name="build/**" />
                <include name="javadoc/**" />
            </fileset>
        </copy>
        <copy todir="${dist_dir}/build">
            <fileset dir="${dist_dir}/src">
                <include name="lib/**" />
                <exclude name="lib/**/MD5.c" />
                <exclude name="lib/**/MD5.h" />
            </fileset>
        </copy>
        <delete file="${build_dir}/fast-md5.zip"/>
        
        <!-- create zip file with executable bit set for libraries -->
        
        <zip destfile="${build_dir}/fast-md5.zip">
            <zipfileset dir="${build_dir}">
                <include name="fast-md5/**" />
                <exclude name="fast-md5/src/lib/**" />
                <exclude name="fast-md5/build/lib/**" />
            </zipfileset>
            <zipfileset dir="${build_dir}">
                <include name="fast-md5/src/lib/**/MD5.c" />
                <include name="fast-md5/src/lib/**/MD5.h" />
            </zipfileset>
            <zipfileset dir="${build_dir}" filemode="755">
                <include name="fast-md5/src/lib/**" />
                <exclude name="fast-md5/src/lib/**/MD5.c" />
                <exclude name="fast-md5/src/lib/**/MD5.h" />
                <include name="fast-md5/build/lib/**" />
            </zipfileset>
        </zip>
    </target>


    <!-- Checks that the native libraries are up to date. -->
    <target name="check_libs" depends="init,_header">
        <antcall target="_check_lib">
            <param name="arch" value="darwin_ppc" />
        </antcall>
        <antcall target="_check_lib">
            <param name="arch" value="darwin_x86" />
        </antcall>
        <antcall target="_check_lib">
            <param name="arch" value="darwin_x86_64" />
        </antcall>
        <antcall target="_check_lib">
            <param name="arch" value="linux_x86" />
        </antcall>
        <antcall target="_check_lib">
            <param name="arch" value="linux_amd64" />
        </antcall>
        <antcall target="_check_lib">
            <param name="arch" value="freebsd_x86" />
        </antcall>
        <antcall target="_check_lib">
            <param name="arch" value="freebsd_amd64" />
        </antcall>
        <antcall target="_check_lib">
            <param name="arch" value="win32_x86" />
        </antcall>
        <antcall target="_check_lib">
            <param name="arch" value="win_amd64" />
        </antcall>
    </target>


    <!-- Compiles the native library for the current platform and
    copies it to the appropriate, architecture dependant directory
    beneath "src/lib/".  Along with the native library, the source
    files used to compile it are also copied to the same architecture
    dependant directory so that there is a record of what source the
    native library is valid for.  This record is used later to confirm
    that each native library is up to date with the latest source,
    since the usual practice of recompiling everything from scratch
    cannot be easily applied to native libraries from other platforms.
    The record may also be manually updated if changes in the source
    would not require recompilation (e.g., if comments change).
    
    As a consequence of this strategy, native libraries are not
    deleted by the "clean" target and are not rebuilt by the "dist"
    target.  This "update_lib" target is how they are updated.  When
    the source code affecting the native library changes, the
    "update_lib" target should be run on each platform that is
    supported.  Then, the contents of the newly udpated architecture
    dependant directory (e.g., "src/lib/arch/darwin_x86/") from each
    platform should be copied to whatever machine is to be used to
    run the "dist" target to create a distribution. -->
    <target name="update_lib" depends="init,_header">
        
        <!-- warn if build process has not yet been test on this platform -->
        
        <condition property="platform_update_lib_untested">
            <or>
                <isset property="platform_darwin_ppc" />
                <isset property="platform_linux_x86" />
            </or>
        </condition>
        <antcall target="_warn_platform_update_lib_untested" />
        
        <!-- build -->
        
        <copy file="src/main/java/com/twmacinta/util/MD5.c" todir="${build_dir}/lib" />
        <antcall target="_update_lib_darwin" />
        <antcall target="_update_lib_linux" />
        <antcall target="_update_lib_freebsd" />
        <antcall target="_update_lib_win32_x86" />
        <antcall target="_update_lib_win_amd64" />
        
        <!-- print error if no platform matched -->
        
        <fail unless="platform" message="Unsupported platform: name='${os.name}' arch='${os.arch}'" />
    </target>

    <!--
      ==
      ==
      ==  End user callable targets
      ==
      ================================================================
      ================================================================
      ==
      ==  Begin internal targets
      ==
      -->
    
    <!-- Internal target to check for a minimum Ant version.  This is
    its own target so that it can be skipped when the version of Ant
    is recent enough to be acceptable but not recent enough to support
    the "AntVersion" task, which was introduced in Ant 1.7. -->
    <target name="_check_ant_version" unless="ant_version_ok">
        <antversion atleast="${min_ant_version}" property="ant_version_ok" />
        <fail unless="ant_version_ok" message="Ant ${min_ant_version} or higher required" />
    </target>

    <!-- Generate header and C stub file plus normalized version -->
    <target name="_header">
        <uptodate property="header_uptodate" targetfile="${build_dir}/lib/MD5.h">
            <srcfiles file="src/main/c/MD5.c" />
            <srcfiles file="src/main/java/com/twmacinta/util/MD5.java" />
            <srcfiles file="target/classes/com/twmacinta/util/MD5.class" />
        </uptodate>
        <antcall target="_header_if_needed" />
    </target>
    <target name="_header_if_needed" unless="header_uptodate">
        <mkdir dir="${build_dir}/lib" />
        <javah class="com.twmacinta.util.MD5"
               outputFile="${build_dir}/lib/MD5.h"
               classpath="target/classes"
               force="true" />
        <antcall target="_normalize_header">
            <param name="header_in" value="${build_dir}/lib/MD5.h" />
            <param name="header_out" value="${build_dir}/lib/MD5_norm.h" />
        </antcall>
    </target>


    <!-- Normalize the given C header file so that comments and empty
    lines are removed and line endings are made the same.  The manner
    in which this is done is hardly foolproof or even thorough, it's
    just meant to handle the simple MD5.h files generated by javah so
    that they can be compared across platforms.  This is because the
    comments can differ by platform, but the actual code has been the
    same (at least so far). -->
    <target name="_normalize_header">
        
        <!-- copy file -->
        
        <copy file="${header_in}" tofile="${header_out}" overwrite="true" />
        
        <!-- strip comments -->
        
        <replaceregexp file="${header_out}"
                       match="/[*][^/]*[*]/"
                       replace="${line.separator}"
                       byline="false"
                       flags="sg" />
        
        <!-- make all line endings the same -->
        
        <fixcrlf file="${header_out}" eol="lf" />
        
        <!-- remove empty lines -->

        <replaceregexp file="${header_out}"
                       match="${line.separator}${line.separator}+"
                       replace="${line.separator}"
                       byline="false"
                       flags="sg" />

        <!-- remove potentially-empty first line -->

        <replaceregexp file="${header_out}"
                       match="^${line.separator}(.*)"
                       replace="\1"
                       byline="false"
                       flags="sg" />
    </target>


    <!-- Checks that the library for the given architecture to make
    sure it does not need to be updated. -->
    <target name="_check_lib">
        <property name="check_dir"
                  location="${build_dir}/lib_check/arch/${arch}" />
        <mkdir dir="${check_dir}" />
        <antcall target="_normalize_header">
            <param name="header_in" value="lib/arch/${arch}/MD5.h" />
            <param name="header_out" value="${check_dir}/MD5_norm.h" />
        </antcall>
        <condition property="changed" value="MD5.h">
            <not>
                <filesmatch file1="${build_dir}/lib/MD5_norm.h"
                            file2="${check_dir}/MD5_norm.h" />
            </not>
        </condition>
        <condition property="changed" value="MD5.c">
            <not>
                <filesmatch file1="src/main/MD5.c"
                            file2="src/lib/arch/${arch}/MD5.c" />
            </not>
        </condition>
        <fail if="changed" message="The library for ${arch} may be out of date because the file ${changed} has changed since it was built.  Please see the documentation at the top of the 'update_lib' target in 'build.xml' for details on bringing the library up to date." />
    </target>


    <!-- Build and update native library for Mac OS X -->
    <target name="_update_lib_darwin" if="platform_darwin">
        <exec executable="gcc" dir="${build_dir}/lib" failonerror="true">
            <arg value="-O3" />
            <arg value="-bundle" />
            <arg value="-I" />
            <arg value="/System/Library/Frameworks/JavaVM.framework/Headers" />
            <arg value="-o" />
            <arg value="MD5.jnilib" />
            <arg value="-framework" />
            <arg value="JavaVM" />
            <arg value="MD5.c" />
        </exec>
        <antcall target="_update_lib">
            <param name="lib_file" value="MD5.jnilib" />
        </antcall>
    </target>


    <!-- Build and update native library for Linux -->
    <target name="_update_lib_linux" if="platform_linux">
        <exec executable="gcc" dir="${build_dir}/lib" failonerror="true">
            <arg value="-O3" />
            <arg value="-shared" />
            <arg value="-I${jdk_home}/include" />
            <arg value="-I${jdk_home}/include/linux" />
            <arg value="MD5.c" />
            <arg value="-o" />
            <arg value="MD5.so" />
        </exec>
        <antcall target="_update_lib">
            <param name="lib_file" value="MD5.so" />
        </antcall>
    </target>
    
    <!-- Build and update native library for freebsd -->
    <target name="_update_lib_freebsd" if="platform_freebsd">
        <exec executable="gcc" dir="${build_dir}/lib" failonerror="true">
            <arg value="-O3" />
            <arg value="-shared" />
            <arg value="-fPIC" />
            <arg value="-I${jdk_home}/include" />
            <arg value="-I${jdk_home}/include/freebsd" />
            <arg value="MD5.c" />
            <arg value="-o" />
            <arg value="MD5.so" />
        </exec>
        <antcall target="_update_lib">
            <param name="lib_file" value="MD5.so" />
        </antcall>
    </target>
    
    <!-- Build and update native library for Windows 32 bit -->
    <target name="_update_lib_win32_x86" if="platform_win32_x86">
        <exec executable="gcc-3" dir="${build_dir}/lib" failonerror="true">
            <arg value="-O3" />
            <arg value="-c" />
            <arg value="-I${jdk_home}include" />
            <arg value="-I${jdk_home}include\win32" />
            <arg value="MD5.c" />
        </exec>
        <exec executable="gcc-3" dir="${build_dir}/lib" failonerror="true">
            <arg value="-shared" />
            <arg value="-mno-cygwin" />
            <arg value="-o" />
            <arg value="MD5.dll" />
            <arg value="MD5.o" />
        </exec>
        <antcall target="_update_lib">
            <param name="lib_file" value="MD5.dll" />
        </antcall>
    </target>


    <!-- Build and update native library for Windows 64 bit -->
    <target name="_update_lib_win_amd64" if="platform_win_amd64">
        <exec executable="${mingw64_gcc}" dir="${build_dir}/lib" failonerror="true">
            <arg value="-m64" />
            <arg value="-O3" />
            <arg value="-c" />
            <arg value="-I${jdk_home}\include" />
            <arg value="-I${jdk_home}\include\win32" />
            <arg value="MD5.c" />
        </exec>
        <exec executable="${mingw64_gcc}" dir="${build_dir}/lib" failonerror="true">
            <arg value="-m64" />
            <arg value="-shared" />
            <arg value="-o" />
            <arg value="MD5.dll" />
            <arg value="MD5.o" />
        </exec>
        <exec executable="${mingw64_strip}" dir="${build_dir}/lib" failonerror="true">
            <arg value="MD5.dll" />
        </exec>
        <antcall target="_update_lib">
            <param name="lib_file" value="MD5.dll" />
        </antcall>
    </target>


    <!-- Update native library after it has been built in a platform
    specific manner. -->
    <target name="_update_lib">
        <copy todir="src/lib/arch/${platform}" overwrite="true">
            <fileset file="${build_dir}/lib/MD5.h" />
            <fileset file="${build_dir}/lib/MD5.c" />
            <fileset file="${build_dir}/lib/${lib_file}" />
        </copy>
        <echo>

WARNING: the native library was only updated for the platform
${platform}.  Other platforms may need to be rebuilt too.
Please see the documentation above the "update_lib" target in
"build.xml" for details on how to update all native libraries for
the distribution.

        </echo>
    </target>


    <!-- Warn if the "update_lib" target has not been tested yet. -->
    <target name="_warn_platform_update_lib_untested"
            if="platform_update_lib_untested">
        <echo>

WARNING: native library compilation using this Ant build file has
not yet been tested for the platform ${platform}.  The native
library distributed with the official release was compiled before
Ant was in use.

        </echo>
        <input>Press Return key to continue...</input>
    </target>
    
</project>