[HADOOP-2537] make build process compatible with Ant 1.7.0

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.14.4
• Fix Version/s: 0.16.0
• Component/s: build
• Assignee: Hrishikesh
• Reporter: Nigel Daley
• Created: 07/Jan/08 16:33
• Updated: 08/Feb/08 23:38
• Resolved: 09/Jan/08 16:45

Description

This section of build.xml behaves differently between Ant 1.6.5 and Ant 1.7.0:

    <touch datetime="01/25/1971 2:00 pm">
      <fileset dir="${conf.dir}" includes="**/*.template"/>
      <fileset dir="${contrib.dir}" includes="**/*.template"/>
    </touch>

In Ant 1.6.5, if the fileset is empty (which it is if you're building from a released tar.gz distribution) then this section silently passes.

In Ant 1.7.0, if the fileset is empty, the following error is raised and the build stops:

BUILD FAILED
/home/ndaley/Downloads/hadoop-0.15.1/build.xml:151: Specify at least one source--a file or resource collection.