I had to go a little deeper, David. I wanted to be able to rebuild the same
build number and also, have a 5th build element when built by continuous
integration. Something that bugs me about Ant properties (I've been writing
with NAnt for the past 6 years) is that you can't simply set a new value for a
Ant property, but rather have to unset first. Anyway, here's what I ended up
with:
<project default="setBuildNumber">
<taskdef resource="net/sf/antcontrib/antlib.xml"/>
<taskdef name="unset" classname="ise.antelope.tasks.Unset"/>
<target name="setBuildNumber">
<property file="build.number"/>
<var name="next.major" value="${major.number}"/>
<var name="next.minor" value="${minor.number}"/>
<var name="next.hotfix" value="${hotfix.number}"/>
<var name="next.revision" value="${revision.number}"/>
<var name="next.continuous" value="${continuous.number}"/>
<if>
<equals arg1="${rebuild}" arg2="true"/>
<then/>
<else>
<if>
<equals arg1="${majorIncrement}" arg2="true"/>
<then>
<!--Increment major, minor to 1, hotfix to 0, revision to 1-->
<math result="next.major" operand1="${next.major}" operation="+"
operand2="1" datatype="int"/>
<var name="next.minor" value="1" />
<var name="next.hotfix" value="0" />
<var name="next.revision" value="1" />
</then>
<elseif>
<equals arg1="${minorIncrement}" arg2="true"/>
<then>
<!--Major stays the same, minor increments, hotfix goes to 0,
revision to 1-->
<math result="next.minor" operand1="${next.minor}"
operation="+" operand2="1" datatype="int"/>
<var name="next.hotfix" value="0" />
<var name="next.revision" value="1" />
</then>
</elseif>
<elseif>
<equals arg1="${hotfixIncrement}" arg2="true"/>
<then>
<!--Major stays the same, minor stays the same, hotfix
increments, revision goes to 1-->
<math result="next.hotfix" operand1="${next.hotfix}"
operation="+" operand2="1" datatype="int"/>
<var name="next.revision" value="1" />
</then>
</elseif>
<elseif>
<equals arg1="${continuous}" arg2="true"/>
<then>
<!--For continuous integration don't change anything but 5th
build digit-->
<if>
<equals arg1="${cont.reset}" arg2="true"/>
<then>
<!--And reset it if they request you to do so-->
<var name="next.continuous" value="1"/>
</then>
<else>
<!--Otherwise increment it-->
<math result="next.continuous"
operand1="${next.continuous}" operation="+" operand2="1" datatype="int"/>
</else>
</if>
</then>
</elseif>
<else>
<!--Update revision number only, they didn't ask for anything
special-->
<math result="next.revision" operand1="${next.revision}"
operation="+" operand2="1" datatype="int"/>
</else>
</if>
</else>
</if>
<!--Now save the build number properties-->
<propertyfile file="build.number">
<entry key="major.number" value="${next.major}"/>
<entry key="minor.number" value="${next.minor}"/>
<entry key="hotfix.number" value="${next.hotfix}"/>
<entry key="revision.number" value="${next.revision}"/>
<entry key="continuous.number" value="${next.continuous}"/>
</propertyfile>
<!--Unset the properties so that we can change their values-->
<unset name="major.number"/>
<unset name="minor.number"/>
<unset name="hotfix.number"/>
<unset name="revision.number"/>
<unset name="continuous.number"/>
<property file="build.number"/>
<!--set the full.buildnumber property to be used by the build-->
<if>
<equals arg1="${continuous}" arg2="true"/>
<then>
<property name="full.buildnumber"
value="${major.number}.${minor.number}.${hotfix.number}.${revision.number}.${continuous.number}"/>
</then>
<else>
<property name="full.buildnumber"
value="${major.number}.${minor.number}.${hotfix.number}.${revision.number}"/>
</else>
</if>
<echo>${full.buildnumber}</echo>
</target>
</project>
________________________________
From: David Weintraub <qazw...@gmail.com>
To: Ant Users List <user@ant.apache.org>
Sent: Monday, May 4, 2009 12:41:13 PM
Subject: Re: Reset BuildNumber
Just playing around a bit and simplified the whole thing:
<project name="test" default="test" basedir=".">
<target name="test">
<!-- Note: This would be your default build task -->
<property file="version.properties"/>
<propertyfile file="version.properties"
comment="Versioning file">
<entry key="major"
default="1"
type="int"
pattern="00"/>
<entry key="minor"
default="0"
type="int"
pattern="00"/>
<entry key="build.number"
value="1"
default="0"
type="int"
operation="+"
pattern="0000"/>
</propertyfile>
<echo message="Now on build number ${major}.${minor}.${build.number}"/>
</target>
<target name="major"
description="Increments Major">
<propertyfile file="version.properties"
comment="Versioning file">
<entry key="major"
value="1"
default="0"
type="int"
operation="+"
pattern="00"/>
<entry key="minor"
value="0"
default="0"
type="int"
operation="="
pattern="00"/>
<entry key="build.number"
value="1"
default="1"
type="int"
operation="="
pattern="0000"/>
</propertyfile>
</target>
<target name="minor"
description="Increments Minor">
<propertyfile file="version.properties"
comment="Versioning file">
<entry key="minor"
value="1"
default="0"
type="int"
operation="+"
pattern="00"/>
<entry key="build.number"
value="1"
default="1"
type="int"
operation="="
pattern="0000"/>
</propertyfile>
</target>
</project>
--
David Weintraub
qazw...@gmail.com
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