Hi Gert, Regarding your example, my feeling is that there would be very natural, if fileset "files" would be empty and nothing would be copied. I would consider this example as a logical error of the programmer, who created such file. As we have just discussed nant is sequential. So when fileset was created include.text was false ->fileset will be empty.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Gary Feldman Sent: Montag, 31. Juli 2006 17:59 To: nant-users@lists.sourceforge.net Subject: Re: [NAnt-users] Evaluation of if and unless Gert Driesen wrote: > ... >>> >> What's the issue with this? This problem comes up often enough. The >> intuitive sense of the if and unless attributes is that they should >> always be evaluated first, and if the result is to skip the task, >> then absolutely nothing else should happen - no other property >> evaluations, no validity checks on other attribute values, etc. > ... > > Consider this following (incomplete) build fragment: > > <project default="build"> > <property name="include.text" value="false" /> > > <fileset id="files"> > <include name="*.txt" if="${incliude.text}"> > </fileset> > > <target name="build"> > <property name="include.text" value="true" /> > <copy ....> > <fileset refid="files" /> > </copy> > </target> > </project> > > If we chose to ignore elements based on the if/unless attribute during > initialization, then the <include> element of the fileset will not be > initialized. NAnt will first initialize global types/tasks, and at > that moment "include.text" is false. This sounds like a case for dynamic filesets, just like the distinction between dynamic and regular properties. Of course, that's much easier said than done. Gary ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ NAnt-users mailing list NAnt-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nant-users ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ NAnt-users mailing list NAnt-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nant-users
