<project name="Personal Issue Tracker">
    <property file="../version.properties"/>
    <property file="project.properties"/>
    <property environment="env"/>

    <path id="groovy.libs">
        <fileset dir="${env.GROOVY_HOME}/lib">
            <include name="**/*.jar"/>
        </fileset>
    </path>

    <path id="groovyc.classpath">
        <path refid="groovy.libs"/>
        <fileset dir="${lib.dir}">
            <include name="**/*.jar"/>
        </fileset>
        <pathelement path="${build.dir}/classes"/>
    </path>

    <path id="test.classpath">
        <path refid="groovyc.classpath"/>
        <pathelement path="${build.dir}/tests"/>
    </path>

    <taskdef name="groovyc"
        classname="org.codehaus.groovy.ant.Groovyc"
        classpathref="groovy.libs"/>

    <target name="init">
        <fail
            unless="env.GROOVY_HOME"
            message="GROOVY_HOME environment variable is not set."/>
        <echo message="GROOVY_HOME: ${env.GROOVY_HOME}"/>
    </target>

    <target name="increment-build-number" depends="init">
        <!-- Check to see if the application version has changed.
             If it has, reset the build number to 0 -->
        <condition property="build.number.final" 
            value="${build.number}"
            else="0" >
            <equals
                arg1="${application.version}"
                arg2="${expected.application.version}"/>
        </condition>

        <echo message="Version: ${application.version}"/>
        <echo message="Build number: ${build.number.final}"/>

        <!-- Write the actual application version and build number -->
        <propertyfile file="project.properties">
            <entry key="build.number" value="${build.number.final}"/>
            <entry
                key="expected.application.version"
                value="${application.version}"/>
        </propertyfile>

        <!-- increment build number -->
        <propertyfile file="project.properties">
            <entry key="build.number" operation="+" type="int" default="0"/>
        </propertyfile>
        <property file="project.properties"/>
    </target>

    <target name="clean">
        <delete dir="${build.dir}"/>
    </target>

    <target name="compile" depends="init,increment-build-number">
        <mkdir dir="${build.dir}/classes"/>
        <groovyc
            srcdir="${src.dir}"
            destdir="${build.dir}/classes"
            classpathref="groovyc.classpath"/>
    </target>

    <target name="compile-tests" depends="init,compile">
        <mkdir dir="${build.dir}/tests"/>
        <groovyc
            srcdir="${test.dir}"
            destdir="${build.dir}/tests"
            classpathref="groovyc.classpath"/>
    </target>

    <target name="run-tests" depends="compile-tests">
        <junit fork="yes" haltonfailure="yes">
            <classpath refid="test.classpath"/>
            <formatter type="brief" usefile="false" />
            <batchtest>
                <fileset dir="${build.dir}/tests">
                    <include name="**/*Test.class"/>
                </fileset>
            </batchtest>
        </junit>
    </target>

    <target name="build" depends="compile,run-tests">
        <mkdir dir="${build.dir}/jar"/>
        <jar
            destfile="${build.dir}/jar/pit-${application.version}.${build.number.final}.jar"
            basedir="${build.dir}/classes"
            compress="on"/>
    </target>

    <target name="release" depends="build">
        <delete dir="${release.dir}"/>
        <mkdir dir="${release.dir}"/>
        <copy file="${build.dir}/jar/pit-${application.version}.${build.number.final}.jar"
            tofile="${release.dir}/${release.jar}"/>
    </target>
</project>
