CODEWITHSUNDEEP
ant
denizburak
denizburak

Reputation: 59

how to add float value from properties file in ant

enter code hereI want to increment my version from property file in ant build.xml I am using below code. It is able to increment the version but at the same time it is rounding it eg. 4.1.0 is becoming 5. my property file:

buildversion=4.1.0

my code: 

  <target name="info">
  <echo>Hello World - Welcome to Apache Ant!</echo>
  <propertyfile file="build.properties">

  <entry key="buildversion" type="int" operation="+" value="1"/>
  </propertyfile>
  </target>

  </project>

I read about propertyfile and it support only int,date and string. How I am able to do it?

Upvotes: 0

Views: 259

Answers (1)

Usagi Miyamoto
Usagi Miyamoto

Reputation: 6289

Added fields for major.minor.release-build and timestamp:

<target name="info">
  <echo>Hello World - Welcome to Apache Ant!</echo>

  <!-- Declare, set and increment the values -->
  <propertyfile file="build.properties">
    <entry key="buildmajor" type="int" default="0"/>
    <entry key="buildminor" type="int" default="0"/>
    <entry key="buildrelease" type="int" default="0"/>
    <entry key="buildbuild" type="int" default="0" operation="+" value="1"/>
    <!-- ISO timestamp -->
    <entry key="buildtime" type="date" value="now" pattern="yyyy.MM.dd HH:mm:ss"/>
  </propertyfile>

  <!-- Re-read values -->
  <property file="build.properties"/>

  <!-- Set calculated value based on re-read values -->
  <propertyfile file="build.properties">
    <entry key="buildversion"
           value="${buildmajor}.${buildminor}.${buildrelease}-${buildbuild}"/>
  </propertyfile>
</target>

Edited the above snippet to re-read changed values before calculating version string.

Also added some comments...

Upvotes: 1

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