<!-- =========================================================================
  Copyright 2006-2012 Daniel W. Dyer

  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.
========================================================================== -->
<project name="uncommons-maths"
         default="dist"
         basedir="."
         xmlns:uncommons="antlib:org.uncommons.antlib">
  <description>Ant build file for Uncommons Maths library.</description>

<!-- ==================================================================
     GLOBAL BUILD PROPERTIES
=================================================================== -->

  <!-- Project-global locations. -->
  <property name="conf.dir" value="etc" />
  <property name="lib.dir" value="lib" />
  <property name="lib.compiletime" value="${lib.dir}/compiletime" />
  <property name="lib.runtime" value="${lib.dir}/runtime" />
  <property name="dist.dir" value="./dist" />
  <property name="docs.dir" value="./docs" />
  <property name="coverage.dir" value="${docs.dir}/coverage" />
  <property name="test-results.dir" value="${docs.dir}/test-results" />
  <property name="release.dir" value="release" />
  <property name="web.dir" value="website" />
  <property name="temp.dir" value="temp" />

  <!-- Classpath for compilation and tests. -->
  <path id="base.path">
    <fileset dir="${lib.dir}">
      <include name="**/*.jar" />
    </fileset>
  </path>

  <property name="version" value="1.2.3"/>
  <property name="artifact.identifier" value="uncommons-maths-${version}"/>

  <!-- This is the minimum coverage percentage (for both lines and
       branches) that will be tolerated.  This is used to prevent
       regressions in coverage.  The threshold will be raised as
       test coverage improves. -->
  <property name="minimum.coverage" value="95" />

  <taskdef uri="antlib:org.uncommons.antlib"
           resource="org/uncommons/antlib/antlib.xml"
           classpathref="base.path"/>


  <!-- ==================================================================
       MACROS
  =================================================================== -->

  <macrodef name="diehard">
    <attribute name="rng.class"/>
    <attribute name="results.file"/>
    <sequential>
      <mkdir dir="${temp.dir}" />
      <delete file="${temp.dir}/random.dat" />
      <java classname="org.uncommons.maths.random.DiehardInputGenerator" classpath="core/build/classes/main">
        <arg value="@{rng.class}"/>
        <arg value="${temp.dir}/random.dat"/>
      </java>
      <exec dir="${lib.compiletime}/diehard"
            executable="${lib.compiletime}/diehard/diehard"
            output="@{results.file}"
            input="${lib.compiletime}/diehard/input.txt"/>
    </sequential>
  </macrodef>


<!-- ==================================================================
     TARGETS FOR BUILDING THE SOFTWARE
=================================================================== -->

  <!-- Builds everything from scratch. -->
  <target name="all"
          depends="clean, dist, test, docs"
          description="Builds everything, excluding docs, from scratch."/>


  <!-- Deletes all directories and files created by the build process. -->
  <target name="clean"
          description="Remove all files created by the build process." >
    <uncommons:clean module="core" />
    <uncommons:clean module="demo" />
    <delete dir="${docs.dir}" />
    <delete dir="${dist.dir}" />
    <delete dir="${release.dir}" />
    <delete dir="${temp.dir}" />
    <delete file="velocity.log" />
  </target>


  <target name="core"
          description="Builds Uncommons Maths module.">
    <uncommons:compile module="core" />
    <uncommons:jar module="core" jarfile="${artifact.identifier}-temp.jar"/>
    <typedef resource="aQute/bnd/ant/taskdef.properties" classpathref="base.path" />
    <bnd classpath="core/${build.dir}/${artifact.identifier}-temp.jar"
         eclipse="false"
         failok="false"
         exceptions="true"
         files="uncommons-maths.bnd"
         output="core/${build.dir}/${artifact.identifier}.jar"/>
    <!-- Only need one JAR, so delete the non-OSGi version. -->
    <delete file="core/${build.dir}/${artifact.identifier}-temp.jar" />
  </target>


  <target name="demo"
          depends="core"
          description="Builds the demo module.">
    <uncommons:compile module="demo" />
    <uncommons:jar module="demo"
                   jarfile="uncommons-maths-demo-${version}.jar"
                   classpath="${artifact.identifier}.jar jfreechart-1.0.8.jar jcommon-1.0.12.jar"
                   mainclass="org.uncommons.maths.demo.RandomDemo" />
  </target>

  
  <!-- Copy all necessary files to distribution directory. -->
  <target name="dist"
          depends="core, demo"
          description="Generate the project distribution." >
    <uncommons:dist />

    <mkdir dir="${dist.dir}/src" />
    <copy todir="${dist.dir}/src" flatten="true">
      <fileset dir="." includes="**/${build.dir}/*-src.jar"/>
    </copy>
  </target>


  <!-- Build source JAR files for inclusion in the release. -->
  <target name="source" description="Build source JARs.">
    <uncommons:source module="core" jarfile="${artifact.identifier}-src.jar" />
  </target>


  <!-- Create the release artifacts. -->
  <target name="release"
          depends="clean, source, dist, test, docs"
          description="Creates the release archives.">
    <uncommons:release name="${artifact.identifier}" />
  </target>


  <target name="release-maven"
          depends="clean, dist"
          description="Deploys the core Maths module to the Java.net Maven repository.">
    <uncommons:maven-deploy module="core"
                            version="${version}"
                            username="${maven.user}"
                            password="${maven.password}"/>
  </target>

<!-- ==================================================================
      TARGETS FOR GENERATING TEST REPORTS & DOCUMENTATION
 =================================================================== -->

  <!-- Runs unit tests for all modules. -->
  <target name="test"
          depends="dist"
          description="Run the unit test suite.">
    <mkdir dir="${temp.dir}" />

    <!-- Bytecode instrumentation to enable collection of test coverage data. -->
    <taskdef resource="tasks.properties" classpathref="base.path" />
    <cobertura-instrument todir="${temp.dir}"
                          datafile="${temp.dir}/cobertura.ser">
      <fileset dir="${dist.dir}" includes="${artifact.identifier}.jar"/>
    </cobertura-instrument>

    <!-- Run the unit tests on the instrumented classes. -->
    <taskdef resource="testngtasks" classpathref="base.path"/>
    <path id="test.path">
      <dirset dir=".">
        <include name="core/${classes.dir}/test" />
      </dirset>
      <fileset dir="${temp.dir}" includes="*.jar"/>
      <path refid="base.path" />
    </path>
    <mkdir dir="${test-results.dir}" />
    <testng classpathref="test.path"
            outputdir="${test-results.dir}"
            haltonfailure="false"
            useDefaultListeners="false"
            listeners="org.uncommons.reportng.HTMLReporter,
                       org.uncommons.reportng.JUnitXMLReporter">
      <xmlfileset dir="${conf.dir}" includes="testng.xml"/>
      <sysproperty key="org.uncommons.maths.random.debug"
                   value="true" />
      <sysproperty key="net.sourceforge.cobertura.datafile"
                   file="${temp.dir}/cobertura.ser" />
      <sysproperty key="org.uncommons.reportng.title"
                   value="Uncommons Maths Unit Test Report" />
      <sysproperty key="org.uncommons.reportng.coverage-report"
                   value="../../coverage/index.html" />
    </testng>

    <!-- Generate the HTML coverage report. -->
    <mkdir dir="${coverage.dir}" />
    <cobertura-report format="html"
                      destdir="${coverage.dir}"
                      datafile="${temp.dir}/cobertura.ser">
      <fileset dir="core/${java.dir}/main">
        <include name="**/*.java" />
      </fileset>
    </cobertura-report>
    <!-- Generate an XML report for Hudson. -->
    <cobertura-report format="xml"
                      destdir="${coverage.dir}"
                      datafile="${temp.dir}/cobertura.ser">
      <fileset dir="core/${java.dir}/main">
        <include name="**/*.java" />
      </fileset>
    </cobertura-report>

    <!-- If the coverage is poor, fail. -->
    <cobertura-check totallinerate="${minimum.coverage}"
                     totalbranchrate="${minimum.coverage}"
                     datafile="${temp.dir}/cobertura.ser"/>

    <!-- Clean up afterwards. -->
    <delete dir="${temp.dir}" />
    <delete file="velocity.log" />
  </target>


  <target name="diehard"
          description="Run DIEHARD test suite against each RNG."
          depends="core">
    <delete dir="${docs.dir}/diehard" />
    <mkdir dir="${docs.dir}/diehard" />
    <diehard rng.class="org.uncommons.maths.random.AESCounterRNG"
             results.file="${docs.dir}/diehard/aes.txt" />
    <diehard rng.class="org.uncommons.maths.random.CellularAutomatonRNG"
             results.file="${docs.dir}/diehard/automaton.txt" />
    <diehard rng.class="org.uncommons.maths.random.CMWC4096RNG"
             results.file="${docs.dir}/diehard/cmwc.txt" />
    <diehard rng.class="org.uncommons.maths.random.MersenneTwisterRNG"
             results.file="${docs.dir}/diehard/mersenne.txt" />
    <diehard rng.class="org.uncommons.maths.random.XORShiftRNG"
             results.file="${docs.dir}/diehard/xor.txt" />
    <!-- Test java.util.Random for comparison. -->
    <diehard rng.class="org.uncommons.maths.random.JavaRNG"
             results.file="${docs.dir}/diehard/java.txt" />
  </target>


  <!-- Generates API documentation for all modules. -->
  <target name="docs"
          description="Generates Javadoc API documentation.">
    <uncommons:javadoc title="Uncommons Maths API"
                       version="${version}"
                       excludes="demo/**/*.java" />
  </target>


<!-- ==================================================================
      TARGETS FOR UPDATING THE PROJECT WEBSITE
 =================================================================== -->

  <!-- Refresh the API documentation tree for the project website. -->
  <target name="website-docs"
          description="Re-builds the website Javadocs."
          depends="dist">
    <!-- Delete all existing HTML files and then regenerate the docs over the top. -->
    <delete>
      <fileset dir="${web.dir}/api">
        <include name="**/*.html" />
      </fileset>
    </delete>
    <uncommons:javadoc dir="${web.dir}/api"
                       title="Uncommons Maths API"
                       version="${version}"
                       excludes="demo/**/*.java" />
    <copy todir="${web.dir}" file="./CHANGELOG.txt" />
  </target>

</project>