maven/build-mercury.xml

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specific language governing permissions and limitations
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<!-- START SNIPPET: ant-bootstrap

By default the bootstrap will use ~/.m2/repository as the integration repository but you can define the integration
repository by specifying a property on the command line:

ant -Dmaven.repo.local=/my/integration/repository

Those familiar with Maven will note this is the same way the local repository can be set from the command-line.
This facilitates having a set of builds converge on the same repository for integration purposes.

END SNIPPET: ant-bootstrap -->

<project default="all" basedir="." xmlns:mercury="urn:mercury-ant-tasks">

  <property name="it.workdir.version" value="3.0.x"/>

  <target name="initTaskDefs">
    <xmlproperty file="pom.xml" prefix="pom" keepRoot="false"/>
    <path id="mercury-ant-tasks.classpath" path="mercury-ant-tasks-1.0-alpha-6-SNAPSHOT.jar"/>
    <typedef resource="org/apache/maven/mercury/ant/tasks/antlib.xml" uri="urn:mercury-ant-tasks" classpathref="mercury-ant-tasks.classpath"/>
  </target>

  <target name="isMavenHomeSet" depends="initTaskDefs">
    <property environment="env"/>
    <condition property="maven.home" value="${env.M2_HOME}">
      <isset property="env.M2_HOME"/>
    </condition>
    <fail message="You must set the M2_HOME environment variable or specify a maven.home property to this Ant script">
      <condition>
        <or>
          <not>
            <isset property="maven.home" />
          </not>
          <equals arg1="${maven.home}" arg2="" trim="true" />
        </or>
      </condition>
    </fail>
  </target>

  <target name="init" depends="isMavenHomeSet">
    <xmlproperty prefix="pom" file="pom.xml"/>
    <basename file="${maven.home}" property="maven.home.basename"/>
    <dirname file="${maven.home}" property="maven.home.dirname"/>
    <!-- Initialize properties -->
    <property name="maven.home.basename.expected" value="apache-maven-${pom.project.version}"/>
    <property name="maven.assembly" location="apache-maven/target/${maven.home.basename.expected}-bin.zip"/>
    <property name="maven.repo.local"   value="${user.home}/.m2/repository"/>
    <property name="maven.repo.central" value="http://repository.sonatype.org/content/groups/public"/>
<!--
    <property name="maven.repo.central" value="http://repo1.maven.org/maven2"/>
    <property name="maven.repo.update.policy" value="daily"/>
    <property name="maven.repo.update.policy" value="always"/>
-->
    <property name="maven.repo.update.policy" value="daily"/>
    
    <property name="maven.repo.system" value="don.t"/>
    
    <condition property="do.not.clean.local.repo">
      <not>
        <isset property="clean.local.repo"/>
      </not>
    </condition>

    <property name="surefire.useFile" value="true"/>
    <echo>maven.home = ${maven.home}</echo>
  </target>

  <target name="clean-bootstrap" description="cleans up generated bootstrap classes">
    <delete dir="bootstrap"/>
  </target>

  <target name="clean-local-repo" description="cleans up local repo" unless="do.not.clean.local.repo">
    <delete dir="${maven.repo.local}"/>
    <mkdir dir="${maven.repo.local}"/>
  </target>

  <target name="flip-default-repository" unless="do.not.flip.repository">

    <replace dir="${basedir}/maven-repository/src/main/java">
      <include name="**/LegacyRepositorySystem.java"/>
      <replacefilter token='@Component( role = RepositorySystem.class, hint = "default" )'
                     value='@Component( role = RepositorySystem.class, hint = "${legacy-hint}" )'/>
      <replacefilter token='@Component( role = RepositorySystem.class, hint = "legacy" )'
                     value='@Component( role = RepositorySystem.class, hint = "${legacy-hint}" )'/>
    </replace>

    <replace dir="${basedir}/maven-repository-mercury/src/main/java">
      <include name="**/MercuryRepositorySystem.java"/>
      <replacefilter token='@Component( role = RepositorySystem.class, hint = "mercury" )'
                     value='@Component( role = RepositorySystem.class, hint = "${mercury-hint}" )'/>
      <replacefilter token='@Component( role = RepositorySystem.class, hint = "default" )'
                     value='@Component( role = RepositorySystem.class, hint = "${mercury-hint}" )'/>
    </replace>
    
    <echo>maven.repo.system is ${maven.repo.system}, flip: legacy-hint=${legacy-hint}, mercury-hint=${mercury-hint}</echo>

  </target>

  <target name="flip-default-repository-system" description="flips repository system impl">
  	
    <condition property="legacy-hint" value="default">
      <equals arg1="${maven.repo.system}" arg2="legacy"/>
    </condition>
    <condition property="mercury-hint" value="mercury">
      <equals arg1="${maven.repo.system}" arg2="legacy"/>
    </condition>

    <condition property="legacy-hint" value="legacy">
      <equals arg1="${maven.repo.system}" arg2="mercury"/>
    </condition>
    <condition property="mercury-hint" value="default">
      <equals arg1="${maven.repo.system}" arg2="mercury"/>
    </condition>
    
    <condition property="do.not.flip.repository" value="default">
      <equals arg1="${maven.repo.system}" arg2="don.t"/>
    </condition>
  	
  	<antcall target="flip-default-repository"/>

  </target>

  <target name="pull" depends="init,clean-local-repo" unless="skip.pull">
    <property name="verbose" value="false"/>
    <!-- Pull the dependencies that Maven needs to build -->
    <copy file="pom.xml" tofile="dependencies.xml"/>
    <replace file="${basedir}/dependencies.xml" token="&lt;!--start--&gt;" value="&lt;!--"/>
    <replace file="${basedir}/dependencies.xml" token="&lt;!--end--&gt;" value="--&gt;"/>

    <mercury:local-repository location="${maven.repo.local}"/>
    <mercury:remote-repository id="central" location="${maven.repo.central}" updatePolicy="${maven.repo.update.policy}"/>

    <property name="tsFormat" value="HH:mm:ss"/>
    <tstamp><format property="start.time" pattern="${tsFormat}"/></tstamp>

    <!-- classpaths with default names: mercury.classpath, mercury.classpath.test, mercury.classpath.runtime -->
    <mercury:resolve-dependencies scope="compile">
      <mercury:dependency source="maven:${basedir}/dependencies.xml"/>
      <mercury:dependency id="org.codehaus.plexus:plexus-component-metadata:${pom.properties.plexusVersion}"/>

      <mercury:exclusions>
        <mercury:exclusion id="org.sonatype.mercury:mercury-mp3-cli"/>
        <mercury:exclusion id="org.sonatype.mercury:mercury-mp3-delta"/>
        <mercury:exclusion id="org.sonatype.mercury:mercury-mp3-api"/>
      </mercury:exclusions>

    </mercury:resolve-dependencies>

    <tstamp><format property="stop.time" pattern="${tsFormat}"/></tstamp>

    <echo>========================================================================</echo>
    <echo>Mercury: start ${start.time}, stop ${stop.time}</echo>
    <echo>========================================================================</echo>
    <property name="mc" refid="mercury.classpath"/>
    <echo>mercury.classpath=${mc}</echo>
    <echo>========================================================================</echo>

<!--
    <delete file="${basedir}/dependencies.xml"/>
-->

    <tstamp><format property="modello.start.time" pattern="${tsFormat}"/></tstamp>

    <!-- only one named classpath: modello.classpath -->
    <mercury:resolve-dependencies pathid="modello.classpath" scope="runtime">
      <mercury:dependency id="org.codehaus.modello:modello-maven-plugin:${pom.properties.modelloVersion}"/>
    </mercury:resolve-dependencies>

    <tstamp><format property="modello.stop.time" pattern="${tsFormat}"/></tstamp>

    <echo>=======================================</echo>
    <echo>Modello: start ${modello.start.time}, stop ${modello.stop.time}</echo>
    <echo>=======================================</echo>

<!--
    <echo>========================================================================</echo>
    <property name="modello.cp" refid="modello.classpath"/>
    <echo>modello.cp=${modello.cp}</echo>
    <echo>========================================================================</echo>
-->

  </target>

  <target name="process-classes" depends="pull" description="generates plexus component metadata.">
    <mkdir dir="${basedir}/bootstrap/target"/>
    <mkdir dir="${basedir}/bootstrap/target/classes"/>

    <path id="maven.classpath">
      <pathelement location="bootstrap/target/classes"/>
      <path refid="sources"/>
      <path refid="mercury.classpath"/>
    </path>

    <echo>Using plexus version ${pom.properties.plexusVersion}</echo>
    <java fork="fork" classname="org.codehaus.plexus.metadata.PlexusMetadataGeneratorCli" failonerror="true">
      <classpath refid="maven.classpath"/>
      <!-- We need to generate component descriptors from the maven-artifact sources which use javadoc annotations. -->
      <arg value="--source"/>
      <arg value="${basedir}/maven-compat/src/main/java"/>
      <!-- We have separated the artifact handlers and lifecycle mappings into a separate file. -->
      <arg value="--descriptors"/>
      <arg value="${basedir}/maven-core/src/main/resources/META-INF/plexus"/>
      <!-- Search the classes for annotations that we've compiled. -->
      <arg value="--classes"/>
      <arg value="${basedir}/bootstrap/target/classes"/>
      <!-- We'll make one big fat components descriptor. -->
      <arg value="--output"/>
      <arg value="${basedir}/bootstrap/target/classes/META-INF/plexus/components.xml"/>
    </java>
  </target>

  <target name="generate-sources" depends="pull" description="generates Java sources from Modello mdo model files">
    <mkdir dir="bootstrap/target"/>
    <mkdir dir="bootstrap/target/generated-sources"/>

    <macrodef name="modello-single-mode">
      <attribute name="file"/>
      <attribute name="mode"/>
      <attribute name="version"/>
      <sequential>
        <java fork="fork" classname="org.codehaus.modello.ModelloCli" failonerror="true" classpathref="modello.classpath">
          <arg file="@{file}"/> <!-- model file -->
          <arg value="@{mode}"/> <!-- output type -->
          <arg file="bootstrap/target/generated-sources"/> <!-- output directory -->
          <arg value="@{version}"/> <!-- model version -->
          <arg value="false"/> <!-- package with version -->
          <arg value="true"/> <!-- use Java 5 -->
          <arg value="UTF-8"/> <!-- encoding -->
        </java>
      </sequential>
    </macrodef>

    <macrodef name="modello">
      <attribute name="file"/>
      <attribute name="version" default="1.0.0"/>
      <sequential>
        <echo taskname="modello" message="Generating sources for @{file}"/>
        <modello-single-mode file="@{file}" version="@{version}" mode="java"/>
        <modello-single-mode file="@{file}" version="@{version}" mode="xpp3-reader"/>
        <modello-single-mode file="@{file}" version="@{version}" mode="xpp3-writer"/>
      </sequential>
    </macrodef>

    <modello file="maven-model/src/main/mdo/maven.mdo" version="4.0.0"/>
    <modello file="maven-lifecycle/src/main/mdo/maven-lifecycle.mdo"/>
    <modello file="maven-plugin-api/src/main/mdo/lifecycle.mdo"/>
    <modello file="maven-project/src/main/mdo/profiles.mdo"/>
    <modello file="maven-core/src/main/mdo/settings.mdo"/>
    <modello file="maven-toolchain/src/main/mdo/toolchains.xml"/>
    <modello file="maven-compat/src/main/mdo/metadata.mdo"/>
  </target>

  <target name="compile-boot" depends="generate-sources,flip-default-repository-system" description="compiles the bootstrap sources">

    <path id="sources">
      <dirset dir=".">
        <include name="bootstrap/target/generated-sources"/>
        <include name="*/src/main/*"/>
      </dirset>
    </path>

    <mkdir dir="bootstrap/target/classes"/>

    <javac destdir="bootstrap/target/classes" encoding="UTF-8" source="1.5" target="1.5" debug="true">
      <src refid="sources"/>
      <classpath refid="mercury.classpath"/>
    </javac>

    <path id="maven.classpath">
      <pathelement location="bootstrap/target/classes"/>
      <pathelement location="maven-compat/src/main/resources"/>
      <path refid="sources"/>
      <path refid="mercury.classpath"/>
    </path>

  </target>

  <target name="maven-compile" depends="compile-boot,process-classes" description="compiles Maven using the bootstrap Maven, skipping automated tests">
    <java fork="true" classname="org.apache.maven.cli.MavenCli" failonerror="true">
      <classpath refid="maven.classpath"/>
      <arg value="-X"/>
      <arg value="-B"/>
      <arg value="clean"/>
      <arg value="install"/>
      <arg value="-Dmaven.repo.local=${maven.repo.local}"/>
      <arg value="-Dsurefire.useFile=${surefire.useFile}"/>
<!--
<debug-the-bootstrap>

    	<jvmarg value="-Xdebug"/>
    	<jvmarg value="-Xnoagent"/>
    	<jvmarg value="-Djava.compiler=NONE"/>
    	<jvmarg value="-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000"/>

</debug-the-bootstrap>
-->
    </java>
  </target>

  <target name="maven-assembly" depends="maven-compile" description="generates the Maven installation assembly using the bootstrap Maven">
    <echo>
    The new Maven distribution was created as part of the MAVEN-COMPILE step, above.
    This goal just validates the presence of that distribution.
    </echo>
    <condition property="build.failed">
      <not>
        <available file="${maven.assembly}"/>
      </not>
    </condition>
    <fail if="build.failed" message="Assembly task seemed to succeed, but couldn't find assembly file: ${maven.assembly}"/>
  </target>

  <target name="extract-assembly" depends="init,maven-assembly" description="extracts the maven assembly into maven.home">
    <echo>Extracting assembly to ${maven.home.dirname} ...</echo>
    <!-- If we are starting from scratch make sure the directory is created -->
    <delete dir="${maven.home}"/>
    <mkdir dir="${maven.home}"/>
    <unzip src="${maven.assembly}" dest="${maven.home.dirname}"/>
    <chmod perm="+x">
      <fileset dir="${maven.home}/bin">
        <include name="mvn"/>
      </fileset>
    </chmod>
  </target>

  <target name="all" depends="clean-bootstrap,init,extract-assembly"/>

</project>