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Subject: AW: How to detect missing jars in a <path>?
Date: Mon, 12 Dec 2005 11:26:03 +0100
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Thread-Topic: How to detect missing jars in a <path>?
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From: <Jan.Materne@rzf.fin-nrw.de>
To: <user@ant.apache.org>
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Quick hack:

<project>

    <path id=3D"xyz">
        <pathelement path=3D"ok.txt"/>
        <pathelement path=3D"missing.txt"/>
    </path>


    <scriptdef name=3D"checkpath" language=3D"javascript">
        <attribute name=3D"refid"/>
        <attribute name=3D"message"/>
        <![CDATA[
            refid  =3D attributes.get("refid");
            message =3D attributes.get("message");
            sb =3D new java.lang.StringBuffer();
           =20
            path =3D project.getReference(refid);
            includedFiles =3D path.list();                           =20
            for(i=3D0; i<includedFiles.length; i++) {
                file =3D new java.io.File(includedFiles[i]);
                if (!file.exists()) {
                    if (sb.length() > 0) sb.append(",");
                    sb.append(includedFiles[i]);
                }
            }
           =20
            if (sb.length() > 0) {
                project.setNewProperty(message, sb.toString());
            }
        ]]>
    </scriptdef>


    <checkpath refid=3D"xyz" message=3D"missed"/>
    <fail if=3D"missed" message=3D"Missing files: ${missed}"/>

</project>


Jan
=20

>-----Urspr=FCngliche Nachricht-----
>Von: Bertrand Delacretaz [mailto:bdelacretaz@apache.org]=20
>Gesendet: Montag, 12. Dezember 2005 10:20
>An: user@ant.apache.org
>Betreff: How to detect missing jars in a <path>?
>
>Hi,
>
>I'd like a construct like
>
><path id=3D"xyz">
>   <pathelement path=3D"ok.jar"/>
>   <pathelement path=3D"missing.jar"/>
></path>
>
>to fail if missing.jar is not available.
>
>Is there a way without using a separate <available/> element=20
>(which means having the missing.jar name in two places, unless=20
>I'm missing something)?
>
>Making the Path class configurable to cause an error instead=20
>of logging the "dropping " + f + " from path as it doesn't=20
>exist" could be a solution, but I'm wondering if there's an=20
>easier way, without duplicating jar names.
>
>--
>   Bertrand Delacretaz
>   independent consultant, Lausanne, Switzerland
>   http://www.codeconsult.ch
>
>

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