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From: "Emmanuel FELLER" <Emmanuel.FELLER@maaf.fr>
To: "'Ant Developers List'" <dev@ant.apache.org>
Subject: RE : Recursive properties resolution ?
Date: Wed, 13 Aug 2003 09:59:18 +0200
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>-----Message d'origine-----
>De : Steve Loughran [mailto:steve_l@iseran.com]=20
>Envoy=E9 : mardi 12 ao=FBt 2003 18:37
>=C0 : Ant Developers List
>Objet : Re: Recursive properties resolution ?
[snip/]
>> So if i keep multiple file (one per project/env couple), i=20
>have multiple
>> and cross redundancy. And i have no way to define the env properties,
>> after the project properties and after project/env properties as they
>> are mixed and cross defined. (i tried without succes).
>>=20
>> In this case I do not see what I can do to solve this=20
>without recursive
>> properties resolution.
>
>-have multiple properties files...one per deployment target, one per=20
>project, one per local installation.
>
>-use property expansion to decide which properties files to load
>
>e.g. a system would have
>
>system.properties:
>deploy.target=3Dchamonix
>
>chamonix:properties
>deploy.platform=3Djboss
>deploy.process=3Dftp
>
[snip/]
><property file=3D"build.properties/>
><property enviroment=3D"env" />
><property file=3D"system.properties/>
>
>   //loads chamonix.properties
><property file=3D"${deploy.target}.properties/>
>//then app server specific stuff
><property file=3D"${deploy.platform}.properties/>
>
[snip/]
>
>This gives you: dynamic configuration, and property file control. One=20
>propfile/build file per app server platform, one per system with sys=20
>config details, one per user with user options.
>

Hi Steve,

Thanks for your response.

I tried your way yesterday evening but now I have 18 properties files
(16 with business and build properties and 2 for the paths to the
properties file). Some of them have 50-60 properties defined, and all
others have only 3 or 4.

Is that better than having recursive resolution ? That's why I asked my
question : what is the limit betwenn several properties to maintain and
the recurive resolution concern ?

In our mind (my boss and me), we won't be able to maintain this lot of
properties files. (Because now we should store them into a SCM and
control the dependancies and the coherence betwenn all properties file
for a build as we could have multiple build in the same hour with
"naturely" change of properties).
So we will develope a recursive resolution task, it solve the potential
issue on multiple properties files management.

I will contribute this if your are interested.

Emmanuel


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