replicate_versions.xml

<project name="ReplicateIdeaVersions" default="replicateIdeaVersions">
    <property name="plugin.xml" value="idea/src/META-INF/plugin.xml"/>
    <property name="android-extensions.plugin.xml" value="plugins/android-idea-plugin/src/META-INF/plugin.xml"/>

    <macrodef name="replicateIdeaVersion">
        <attribute name="target.file"/>
        <attribute name="idea-version-pattern" default="&lt;idea-version since-build=&quot;[0-9.]+&quot; until-build=&quot;[0-9.]+&quot;/&gt;"/>
        <attribute name="replace-pattern" default="&lt;!-- IDEA VERSION --&gt;"/>

        <sequential>
            <loadfile srcfile="${plugin.xml}" property="main.plugin.version">
                <filterchain>
                    <linecontainsregexp>
                        <regexp pattern="@{idea-version-pattern}"/>
                    </linecontainsregexp>
                    <trim/>
                    <headfilter lines="1" />
                    <striplinebreaks />
                </filterchain>
            </loadfile>

            <echo message="${main.plugin.version}" />

            <fail message="Property &quot;main.plugin.version&quot; must be set">
                <condition>
                    <not>
                        <isset property="main.plugin.version"/>
                    </not>
                </condition>
            </fail>

            <fail message="Property &quot;main.plugin.version&quot; must not be empty">
                <condition>
                    <equals arg1="${main.plugin.version}" arg2=""/>
                </condition>
            </fail>

            <replaceregexp file="@{target.file}" byline="true" match="@{replace-pattern}" replace="${main.plugin.version}" />
        </sequential>
    </macrodef>
</project>