RE: [Ant-contrib-developers] runtarget, still

[Dominique D. <DDe...@lg...>]

Maybe you should reconsider your choices, and not used <var> and <runtarget=
> at all, no? Both are hacks, and <var> only exists because of a hole in th=
e Ant code which is kept around to preserve BC only. <runtarget> is simply =
an optimization of <antcall>, or can often be replaced by target dependenci=
es is the same context if required to "pass back" properties/references. In=
 the remaining cases, <macrodef> comes to the rescue.

I'm building dozens of projects amounting to millions of lines of code with=
out it just fine. These 2 Ant-Contrib tasks are to be avoided at best.

I strongly advise you architecture your builds the Ant way. It works for ma=
ny many people, so it can probably work for you too. If you need a scripty =
build system, consider SCons or A-A-P, which are both Python based and give=
 you the full Python power to script things. --DD

> -----Original Message-----
> From: ant...@li... [mailto:ant-
> con...@li...] On Behalf Of
> ant...@no...
> Sent: Monday, September 19, 2005 2:01 AM
> To: ant...@li...
> Subject: RE: [Ant-contrib-developers] runtarget, still
>=20
> Yes, sorry, typo. Doesn't make the problem go away though, as you may have
> guessed.
>=20
> --
> Antti
>=20
> > -----Original Message-----
> > From: ext Justin Mahoney [mailto:ju...@wi...]
> > Sent: 16 September, 2005 18:33
> > To: Kivimaki Antti (Nokia-TP-MSW/Tampere)
> > Cc: ant...@li...
> > Subject: Re: [Ant-contrib-developers] runtarget, still
> >
> >
> > Shouldn't othertarget be:
> >
> > <target name=3D"othertarget">
> >    <echo>${myvar}</echo>
> > </target>
> >
> >
> > ant...@no... wrote:
> >
> > > Hi,
> > >
> > > I've been doing some debugging inside Ant, related to the
> > problem that makes it practically impossible to use runtarget
> > to call the same target twice.
> > >
> > > Basically the problem seems to exist because Ant re-uses
> > all Task objects. When a target (that has already been
> > executed within the same project's scope either because of a
> > dependency or runtarget) is executed using runtarget, the
> > Task objects are not reconfigured. E.g. an Echo task's output
> > string containing variables will only be expanded the first
> > time the target containing the task is executed. In Echo's
> > case this means that a specific Echo-tag in a target can only
> > display the same string over and over if the target is
> > executed multiple times using runtarget.
> > >
> > > Hence the following does _not_ display a, b, but a, a.
> > >
> > > <target name=3D"firsttarget" />
> > >   <var name=3D"myvar" value=3D"a" />
> > >   <runtarget target=3D"othertarget" />
> > >   <var name=3D"myvar" value=3D"b" />
> > >   <runtarget target=3D"othertarget" />
> > > </target>
> > >
> > > <target name=3D"othertarget">
> > >   <echo>${othertarget}</echo>
> > > </target>
> > >
> > > I have not studied the implications to other tasks, but it
> > seems like a global problem.
> > >
> > >
> > > If, however, in the above example the echo-task is nested
> > in a Sequential task (or e.g. if-then-block which seems to
> > use Sequential underneath) it works ok. For some reason the
> > setProxy method of RuntimeConfigurable gets called for all of
> > Sequential's nested tasks, causing the proxyConfigured field
> > to be reset and eventually the underlying Task object to be
> > reconfigured in maybeConfigure-method every time the
> > Sequential is executed.
> > >
> > >
> > > Did I make any sense? Probably not. Still, based on this,
> > could anybody please be able to help me on how to make
> > runtarget work properly when calling a target more than once?
> > To me it doesn't matter whether I have to patch Ant or
> > Ant-contrib or both.
> > >
> > >
> > > Thanks,
> > >   Antti Kivim=E4ki
> >
> >
>=20
>=20
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