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From <Andreas.Ebb...@nokia.com>
Subject RE: How to delete files from a zip/jar?
Date Tue, 07 Dec 2004 15:23:22 GMT
Hi,

my current approach is to execute this command, which should work fine, since ant is used
in a linux or cygwin environment:

zip -d target.jar `jar -tf compare.jar | grep \.class`

I am using this target:

<!--

  Purpose: removing all classes in one jar file, that are already present in another
  Input:
    expected properties
         ${jardelete.target}
         ${jardelete.compare}
    optional properties:

-->
	<target name="jardelete" depends="" >
		<exec executable="zip">
			<arg value="-d"/>
			<arg value="${jardelete.target}"/>
			<arg value="`jar -tf ${jardelete.compare} | grep \.class`"/>
		</exec>
	</target>

But it won't work:

jardelete:
     [exec] Current OS is Windows 2000
     [exec] Executing 'zip' with arguments:
     [exec] '-d'
     [exec] 'target.jar'
     [exec] '`jar -tf compare.jar | grep \.class`'
     [exec]
     [exec] The ' characters around the executable and arguments are
     [exec] not part of the command.
Execute:Java13CommandLauncher: Executing 'zip' with arguments:
'-d'
'target.jar'
'`jar -tf compare.jar | grep \.class`'

The ' characters around the executable and arguments are
not part of the command.
     [exec]     zip warning: name not matched: `jar -tf compare.jar | grep /.class`

     [exec] zip error: Nothing to do! (target.jar)


     [exec] Result: 12
  [antcall] Exiting <...>\build.xml.

Any idea how I have to invoke zip, to make the evaluation of the jar output work?

 _         __      _  _
//\ndreas.[|-bbert(a)[|\|okia.com
           `-
   Andreas Ebbert
   Software Design Engineer - Nokia Networks OSS 
   gsm: +49-177-941-3928, fax: +49-211-9412-3838
   Heltorfer Straße 1, 40472 Düsseldorf, Germany 

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