common-build-targets.xml

<?xml version="1.0" encoding="UTF-8" ?>
<project xmlns:xdb="http://exist-db.org/ant" name="common-build-targets">

    <target name="increase-patch" description="Increase patch number">
        <propertyfile file="build.properties">
            <entry key="project.version.patch" type="int" operation="+" value="1" pattern="0"/>
        </propertyfile>
    </target>

    <target name="increase-minor" description="Increase minor number">
        <propertyfile file="build.properties">
            <entry key="project.version.minor" type="int" operation="+" value="1" pattern="0"/>
            <entry key="project.version.patch" type="int" value="0" pattern="0"/>
        </propertyfile>
    </target>

    <target name="increase-major" description="Increase major number">
        <propertyfile file="build.properties">
            <entry key="project.version.major" type="int" operation="+" value="1" pattern="0"/>
            <entry key="project.version.minor" type="int" value="0" pattern="0"/>
            <entry key="project.version.patch" type="int" value="0" pattern="0"/>
        </propertyfile>
    </target>

    <target name="update-build-date">
        <propertyfile file="build.properties">
            <entry key="project.version.date" type="date" value="now" pattern="YYYY-MM-dd.HH-mm-ss"/>
        </propertyfile>
    </target>

    <available file=".git" type="dir" property="git.present"/>
    <target name="git-revision" description="Store git revision in ${repository.version}" if="git.present">
        <exec executable="git" outputproperty="git.revision" failifexecutionfails="false" errorproperty="">
            <arg value="describe"/>
            <arg value="--tags"/>
            <arg value="--always"/>
            <arg value="HEAD"/>
        </exec>
        <condition property="repository.version" value="${git.revision}" else="unknown">
            <and>
                <isset property="git.revision"/>
                <length string="${git.revision}" trim="yes" length="0" when="greater"/>
            </and>
        </condition>
        <propertyfile file="build.properties">
            <entry key="repository.version" type="string" value="${repository.version}"/>
        </propertyfile>
    </target>

    <target name="update-project-version"  depends="git-revision, update-build-date">
        <property file="build.properties"/>
        <property name="project.version" 
            value="${project.version.major}.${project.version.minor}.${project.version.patch}"/>        
        <echo message="Version: ${project.version}"/>
        <echo message="Date: ${project.version.date}"/>
        <echo message="Repository: ${repository.version}"/>
        </target>

    <target name="show-version" description="Echo the version number">
        <property file="build.properties"/>
        <property name="project.version" 
            value="${project.version.major}.${project.version.minor}.${project.version.patch}"/>        
        <echo message="Version: ${project.version}"/>
        <echo message="Date: ${project.version.date}"/>
        <echo message="Repository: ${repository.version}"/>
    </target>

</project>