Scala example source code file (build.examples.xml)

This example Scala source code file (build.examples.xml) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

ant, ant, creating, creating, initialisation, os, sabbus, sabbus, scala, scala, testing, user, utf-8, windows

The Scala build.examples.xml source code

<?xml version="1.0" encoding="UTF-8"?>

<project name="scala-examples" default="build">

  <description>
    I am SABBUS for ${ant.project.name}, the build system for the Scala compiler
    and core library. Please check the 'docs/README' file for more information
    about me.
  </description>

  <echo level="info" message="Running SABBUS for ${ant.project.name}..."/>

<!-- ===========================================================================
PROPERTIES
============================================================================ -->

  <property environment="env"/>

  <!-- Prevents system classpath from being used -->
  <property name="build.sysclasspath" value="ignore"/>

  <!-- Base properties -->
  <property name="src.dir"            value="${basedir}/docs"/>
  <property name="src.examples.dir"   value="${src.dir}/examples"/>
  <property name="lib.dir"            value="${basedir}/lib"/>
  <!-- User properties -->
  <property file="${basedir}/build.examples.properties"/>
  <!-- Location of pre-compiled libraries properties -->
  <property name="scala.lib.jar"      value="${lib.dir}/scala-library.jar"/>
  <property name="scala.comp.jar"     value="${lib.dir}/scala-compiler.jar"/>
  <property name="fjbg.name"          value="fjbg.jar"/>
  <property name="fjbg.jar"           value="${lib.dir}/${fjbg.name}"/>
  <property name="msil.name"          value="msil.jar"/>
  <property name="msil.jar"           value="${lib.dir}/${msil.name}"/>
  <property name="ant.jar"            value="${ant.home}/lib/ant.jar"/>
  <property name="ant-contrib.jar"    value="${lib.dir}/ant/ant-contrib.jar"/>
  <!-- -->
  <property name="build.dir"          value="${basedir}/build"/>
  <property name="build.examples.dir" value="${build.dir}/examples"/>
  <!-- tbd -->
  <property name="excludes.compile"
            value="**/*current.*,**/parsers2.*,**/typeinf.*"/>
  <property name="excludes.run"
            value="**/Parsers.*"/>

<!-- ===========================================================================
INITIALISATION
============================================================================ -->

  <target name="init" unless="init.avail">
    <tstamp prefix="start">
      <format
        property="human-time"
        pattern="EEEE, d MMMM yyyy, HH:mm:ss (zz)"
      />
    </tstamp>
    <!-- Testing if everything is in place -->
    <echo level="verbose" message="scala.lib.jar=${scala.lib.jar}"/>
    <fail message="Scala library in '${lib.dir}/' is not available">
      <condition>
        <available
          classname="scala.Predef" 
          classpath="${scala.lib.jar}"
        />
        <available
          classname="scala.collection.immutable.List"
          classpath="${scala.lib.jar}"
        />
        <available
          classname="scala.runtime.ObjectRef"
          classpath="${scala.lib.jar}"
        />
      </and>
    </fail>
    <echo level="verbose" message="scala.comp.jar=${scala.comp.jar}"/>
    <fail message="Scala compiler in '${lib.dir}/' is not available">
      <condition>
        <available
          classname="scala.tools.ant.Scalac"
          classpath="${scala.comp.jar}:${scala.lib.jar}"
        />
      </not>
    </fail>
    <echo level="verbose" message="fjbg.jar=${fjbg.jar}"/>
    <fail message="FJBG library in '${lib.dir}/' is not available">
      <condition>
        <available
          classname="ch.epfl.lamp.fjbg.JCode"
          classpath="${fjbg.jar}"
        />
      </not>
    </fail>
    <echo level="verbose" message="msil.jar=${msil.jar}"/>
    <fail message="MSIL library in '${lib.dir}/' is not available">
      <condition>
        <available
          classname="ch.epfl.lamp.compiler.msil.MemberInfo"
          classpath="${msil.jar}"
        />
      </not>
    </fail>
    <echo level="verbose" message="ant.jar=${ant.jar}"/>
    <echo level="verbose" message="ant-contrib.jar=${ant-contrib.jar}"/>
    <fail message="Additional Ant tasks in '${lib.dir}/' is not available">
      <condition>
        <available
          classname="net.sf.antcontrib.AntContribVersion"
          classpath="${ant-contrib.jar}"
        />
      </not>
    </fail>
    <!-- Creating class-pathes -->
    <path id="common.classpath">
      <pathelement location="${fjbg.jar}"/>
      <pathelement location="${msil.jar}"/>
    </path>
    <path id="scala.classpath">
      <pathelement location="${scala.lib.jar}"/>
      <pathelement location="${scala.comp.jar}"/>
      <path refid="common.classpath"/>
    </path>
    <!-- Creating boot-level tasks -->
    <taskdef resource="net/sf/antcontrib/antlib.xml">
      <classpath>
        <pathelement location="${ant-contrib.jar}"/>
      </classpath>
    </taskdef>
    <!-- Finding out what system architecture is being used -->
    <condition property="os.win">
      <os family="windows"/>
    </condition>
    <if>
      <then>
        <exec
          executable="cygpath"
          vmlauncher="no"
          errorproperty="cygpath.err"
          outputproperty="cygpath.out"
        >
          <arg value="--windir"/>
        </exec>
        <condition property="os.cygwin">
          <equals arg1="${cygpath.err}" arg2=""/>
        </condition>
      </then>
    </if>
    <condition property="os.unix">
      <or>
        <os family="unix"/>
        <os family="mac"/>
        <isset property="os.cygwin"/>
      </or>
    </condition>
    <if>
      <then>
      <elseif>
        <then>
      </elseif>
      <elseif>
        <then>
      </elseif>
      <else>
        <fail>System environment could not be determined
      </else>
    </if>
    <echo
      level="info"
      message="OS:   ${os.type} (${os.name} ${os.arch} ${os.version});"
    />
    <echo
      level="info"
      message="Java: ${java.version} ('${java.home}');"
    />
    <echo
      level="info"
      message="JVM:  ${java.vm.name} ${java.vm.version};"
    />
    <echo
      level="info"
      message="Ant:  ${ant.version}."
    />
    <property name="init.avail" value="yes"/>
  </target>

  <target name="setup" depends="init">
    <!-- Creating boot-level tasks -->
    <taskdef
      name="scalac"
      classname="scala.tools.ant.Scalac"
      classpathref="scala.classpath"
    />
    <property name="init.avail" value="yes"/>
  </target>

<!-- ===========================================================================
BUILD
============================================================================ -->

  <target name="build" depends="setup">
    <mkdir dir="${build.dir}"/>
    <echo level="verbose">src.dir=${src.dir}
    <pathconvert property="list" pathsep=",">
      <path>
        <fileset
          dir="${src.dir}"
          includes="examples/*.scala"
          excludes="${excludes.compile}"
        />
      </path>
      <mapper>
        <globmapper from="${src.dir}/*" to="*"/>
      </mapper>
    </pathconvert>
    <for list="${list}" param="file">
      <sequential>
        <scalac srcdir="${src.dir}"
                destdir="${build.dir}" deprecation="true">
          <classpath>
            <pathelement location="${scala.lib.jar}"/>
            <pathelement location="${build.dir}"/>
          </classpath>
          <include name="@{file}"/>
        </scalac>
      </sequential>
    </for>
  </target>

<!-- ===========================================================================
RUN
============================================================================ -->

  <target name="run" depends="build">
    <pathconvert property="list" pathsep=",">
      <path>
        <fileset
          dir="${src.dir}"
          includes="examples/*.scala"
          excludes="${excludes.run}"
        />
      </path>
      <mapper>
        <globmapper from="${src.dir}/*" to="*"/>
      </mapper>
    </pathconvert>
    <for list="${list}" param="file">
      <sequential>
        <var name="classname" unset="true"/>
        <basename property="classname" file="@{file}" suffix=".scala"/>
        <echo>Executing Scala program examples.${classname}..
        <java classname="examples.${classname}" fork="true"
              output="${build.examples.dir}/${classname}.log"
              error="${build.examples.dir}/${classname}.log"
              append="true">
          <classpath>
            <pathelement location="${scala.lib.jar}"/>
            <pathelement location="${build.dir}"/>
          </classpath>
        </java>
      </sequential>
    </for>
  </target>

<!-- ===========================================================================
CLEAN
============================================================================ -->

  <macrodef name="remove">
    <attribute name="dir"/>
    <sequential>
      <delete
        dir="@{dir}"
        includeemptydirs="yes"
        quiet="yes"
        failonerror="no"
      />
    </sequential>
  </macrodef>

  <target name="clean" description="Removes all build examples">
    <remove dir="${build.examples.dir}"/>
  </target>

</project>