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From Ramnish Kalsi <rka...@Lastminute.com>
Subject RE: how would I perform set intersection or disjunction with file sets?
Date Thu, 14 Jul 2005 12:20:04 GMT
I am not an ant expert, but how about this:
a) Copy both the filesets into a directory,
b) Sync the copied directory to one of the filesets, and you will be left
with an intersection. the target sync need ant >1.6 

<project name="sync-test" default="usage">
    <description>
            description
    </description>
    <!-- =================================
          target: default
         ================================= -->
    <target name="copy"  description="Copy the files">
        <copy todir="/home/rkalsi/testSync/dir3" overwrite="true"
verbose="true">
                <fileset dir="/home/rkalsi/testSync/dir1" />
		<fileset dir="/home/rkalsi/testSync/dir2" />
        </copy>
    </target>

	<target name="sync">
		<sync todir="/home/rkalsi/testSync/dir3">
			<fileset dir="/home/rkalsi/testSync/dir1" />
		</sync>
	</target>    

</project>


cheers,
ramnish.
-----Original Message-----
From: Craeg Strong [mailto:cstrong@nyc.saic.com]
Sent: 14 July 2005 03:12
To: Ant Users List
Subject: how would I perform set intersection or disjunction with
filesets?


Hello:

Here is a fun question: does anyone have any ideas as to how one might
go about producing a fileset that represents the INTERSECTION of two
filesets?

That is, it will include only those files that are in both filesets A
and B.

Another question: how might one produce a fileset that includes all
those files from fileset A that are NOT part of fileset B?

I believe selectors provide the capabilities I would need to get the
above job done at a low level, but it might be nice to be able to
perform set operations like this on filesets directly, for better code
legibility and expressive power.  

Opinions?  Ideas?

Thanks in advance,

--Craeg

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