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From Andrew Goktepe <andrewgokt...@gmail.com>
Subject Re: Jar task updated a jar without known reason
Date Thu, 01 Sep 2005 13:56:54 GMT
The jar task will do as its told without checking to see if there is already 
an up-to-date file, just as with the jar command-line utility.
 Yes, without the update attribute set, the jar file will be re-created each 
time.
 -Andrew

 On 9/1/05, Barak Yaish <byaish@cloverleafcomm.com> wrote: 
> 
> First of all, Thanks!
> 
> But can you tell WHY Ant touched my jar?
> 
> Regarding your second comment, if I'll omit the update flag, the jar will 
> be recreated every time the task is executed?
> 
> Thanks,
> 
> Barak.
> 
> -----Original Message-----
> From: Andrew Goktepe [mailto:andrewgoktepe@gmail.com]
> Sent: ?? 01 ?????? 2005 16:46?
> To: Ant Users List
> Subject: Re: Jar task updated a jar without known reason
> 
> You can use the <uptodate> task to compare timestamps between a set of 
> files
> and a target file. In your case, the set of files are your class files, 
> and
> the target file is your jar file.
> <target name="compile_cli">
> (your current contents of compile_cli here)
> <uptodate property="skip.jar" targetfile="${jars}/cli.jar">
> <srcfiles dir="${cli_output}" includes="project/manager/tools/CLI/**"/>
> </uptodate>
> </target>
> <target name="jar_cli" unless="skip.jar" depends="compile_cli">
> <jar destfile="${jars}/cli.jar"
> basedir="${cli_output}"
> includes="project/manager/tools/CLI/**"
> update="true"
> />
> </target>
> Also, are you sure you want update="true" on the jar task? This will add
> files to the previously-built jar rather than creating a new one. If you
> remove files from your source, the jar will still keep the outdated files.
> -Andrew
> 
> On 9/1/05, Barak Yaish <byaish@cloverleafcomm.com> wrote:
> >
> > Hello,
> >
> > In my build file, javac and jar task are called in order to create a jar
> > for my project.
> > First time these tasks were called, the source files got compiled and a
> > jar was created just fine. Without changing anything in the source 
> files, I
> > ran again the tasks.
> > Nothing happened in javac task, as expected, but the jar task changed 
> the
> > time stamp of the jar. The question is: why? A check I did rais that the 
> Ant
> > change the time stamp of the manifest file, even without changing its
> > content. For some reasons, it is very important to me that the time 
> stamp of
> > the jar file wouldn't be changed unless a source file changed.
> > This is how the jar task is written in my build file:
> >
> > <target name="jar_cli" depends="compile_cli">
> > <jar destfile="${jars}/cli.jar"
> > basedir="${cli_output}"
> > includes="project/manager/tools/CLI/**"
> > update="true"
> > />
> > </target>
> >
> > Can someone explain me please how can I avoid such situation?
> >
> > Thanks,
> >
> > Barak.
> >
> >
> 
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