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Date: Mon, 10 Sep 2007 09:45:06 +0100
From: "Peter Reilly" <peter.kitt.reilly@gmail.com>
To: "Ant Users List" <user@ant.apache.org>
Subject: Re: Ant uptodate?
In-Reply-To: <EF39D77A486C234B9D9933091CE6D21E020F840D@z011034.bk.fin.local>
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with current ant it is difficult to do exactly what you want,
I normally do the following:
Pick a file that Sablecc allways changes when it
is run - ${targetdir}/lexer/Lex.java for example.
Use ant-contrib's outofdate task.
<ac:outofdate>
   <sourcefiles path=3D"${grammer.file}"/>
   <targetfiles   path=3D"${targetdir}/lexer/Lex.java"/>
   <sequential>
      <sablecc grammer=3D"${grammer.file}" targetdir=3D"${targetdir}"/>
   </sequential>
</ac:outofdate>

Ant 1.7.1 is adding in a "erroronmissingdir" attribute to filesets, this
means that one can do:

<ac:outofdate>
   <sourcefiles path=3D"${grammer.file}"/>
   <targetfiles>
        <path path=3D"${targetdir}"/>
        <fileset dir=3D${targetdir}" erroronmissingdir=3D"false"
includes=3D"**/*.java"/>
   </targetfiles>
   <sequential>
      <sablecc  grammer=3D"${grammer.file}" targetdir=3D"${targetdir}"/>
   </sequential>
</ac:outofdate>

which is more what you want.
Peter

On 9/10/07, Jan.Materne@rzf.fin-nrw.de <Jan.Materne@rzf.fin-nrw.de> wrote:
> You can set a property if a file/directory does (not) exist using
> <available> and <available> in combination with <condition>, <not>.
>
> The "changed" files you maybe could check with <condition> and <isfilesel=
ected>
> in combination with <date> selector or <modified> selector.
>
>
> Jan
>
> >-----Urspr=FCngliche Nachricht-----
> >Von: Lionel van den Berg [mailto:lionelv@gmail.com]
> >Gesendet: Montag, 10. September 2007 00:46
> >An: user@ant.apache.org
> >Betreff: Ant uptodate?
> >
> >Hi all,
> >
> >I sent two other emails but I don't think they went through.
> >
> >I've tried using the ant uptodate and dependset tasks but
> >haven't solved my
> >problem. I've googled, tried heaps of solutions but still
> >can't do it, so
> >here is the problem:
> >
> >Assume for each of the following we are in a base directory. I have:
> >
> >grammar/*.grammar files.
> >
> >From a *.grammar file Sablecc will generate .java files (and some .dat
> >files) in:
> >
> >src/*/analysis/
> >src/*/lexer/
> >src/*/node/
> >src/*/parser/
> >
> >
> >When my Ant script is run, src/ may or may not exist.
> >
> >What I want to do is just set a property if either src/ does
> >not exist or
> >any of the files in any of files in grammar/ have been
> >modified after any of
> >the files in the subdirectories of src/.
> >
> >Can someone please help me? It seems that this should be fairly simple.
> >
> >Thanks
> >
> >Lionel.
> >
>
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