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Date: Thu, 14 Jun 2007 17:53:21 +0100
From: "Peter Reilly" <peter.kitt.reilly@gmail.com>
To: "Ant Users List" <user@ant.apache.org>
Subject: Re: replace an entry in a zip file?
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Whats wrong is that he was using <jar> instead of <zip>.
<jar> will create a manifest entry in the jarfile. The
timestamp of this manifest entry will the time
time that the <jar> task was run - (if there
are updates to be done). One cannot mix
<jar> and <zip updating manifest file>.
Peter


On 6/14/07, RADEMAKERS Tanguy <Tanguy.RADEMAKERS@swift.com> wrote:
> that's weird, i'm using 1.6.5 as well.
>
> I think we have a misunderstanding.
>
> Here's what i did:
>
> 1) make three files a.txt, b.txt, c.txt, each with some text
>
> 2) create the following build.xml:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <project name="bollo" default="testzip" basedir=".">
>     <target name="testzip">
>         <zip destfile="txtfiles.zip" update="true">
>             <fileset dir="." includes="*.txt"/>
>         </zip>
>     </target>
> </project>
>
> 3) run that to get the first zip file: txtfiles.zip, containing the
> three txt files listed above.
>
> 4) move b.txt and c.txt to b.bak and c.bak (so the zip task no longer
> sees them) and update a.txt (add a string "updated")
>
> 5) re-run the build, and the updated zip archive txtfiles.zip now
> contains the original versions of b.txt and c.txt, but the updated
> version of a.txt.
>
> In my book, that's equivalent to "replace one entry in a zip file with
> an updated file", no?
>
> /t
>
> >-----Original Message-----
> >From: Cyril Sagan [mailto:Cyril.Sagan@sas.com]
> >Sent: Thursday, June 14, 2007 6:12 PM
> >To: Ant Users List
> >Subject: RE: replace an entry in a zip file?
> >
> >Thanks for your reponse.  However, this does not work for me
> >in Ant 1.6.5.
> >Note that my goal is to *replace* a file that's already in the zip.
> >
> >Seems like the best solution would be for the duplicate
> >attribute to support a "replace" option.
> >
> >FWIW, I'm doing this to control my jar manifest.  I can't use
> ><jar> because Ant merges with its default manifest.  I'm
> >having a hard time employing this advice from the Ant doc:
> >
> >http://ant.apache.org/manual/CoreTasks/manifest.html
> >
> >    If you find that Ant generates manifests incompatible with your
> >    runtime, take a manifest it has built, fix it up however you need
> >    and switch to using the <zip>  task to create the JAR, feeding in
> >    the hand-crafted manifest.
> >
> >Here's my build.xml:
> >
> ><?xml version="1.0"?>
> ><project name="manifest_test" default="go">
> >
> >    <target name="go">
> >        <!-- build trivial sample jar -->
> >        <mkdir dir="work" />
> >        <touch file="work/a" />
> >        <touch file="work/b" />
> >
> >        <jar jarfile="test.jar" update="true">
> >            <fileset dir="work" includes="**/*" />
> >        </jar>
> >
> >        <!-- Use zip to add my manifest without having Ant -->
> >        <!-- try to merge with its default one, that is:   -->
> >        <!-- main/org/apache/tools/ant/defaultManifest.mf  -->
> >        <zip destfile="test.jar" basedir="work" update="true">
> >            <zipfileset dir="." includes="my_manifest"
> >                                fullpath="META-INF/MANIFEST.MF"/>
> >        </zip>
> >    </target>
> ></project>
> >
> >Thanks.
> >
> >--Cyril
> >
> >
> >-----Original Message-----
> >From: RADEMAKERS Tanguy [mailto:Tanguy.RADEMAKERS@swift.com]
> >Sent: Thursday, June 14, 2007 5:23 AM
> >To: Ant Users List
> >Subject: RE: replace an entry in a zip file?
> >
> >Hello Cyril,
> >
> >>GOAL:  To replace one entry in a zip file with an updated file.
> >>
> >>I cannot find an elegant way to do this, short of <unzip>'ing the
> >>archive, replacing the file of interest and then re-<zip>.  It seems
> >>there should be a better way.  Can anyone help?
> >>
> >>Thanks.
> >>
> >>--Cyril
> >
> >If you use the update attribute of the zip task - it will
> >"refresh" the zip with the file or files you send it, without
> >changing or removing the other files in the archive. You may
> >still need to extract the files of interest from the zip if
> >you don't have them elsewhere, but you don't need to explode
> >the whole zip just to change a few files.
> >
> >Regs,
> >/t
> >
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