Return-Path: 
 <ant-user-return-21586-qmlist-jakarta-archive-ant-user=jakarta.apache.org@jakarta.apache.org>
Delivered-To: apmail-jakarta-ant-user-archive@apache.org
Received: (qmail 60104 invoked from network); 7 Jun 2002 16:23:18 -0000
Received: from unknown (HELO nagoya.betaversion.org) (192.18.49.131)
  by daedalus.apache.org with SMTP; 7 Jun 2002 16:23:18 -0000
Received: (qmail 15295 invoked by uid 97); 7 Jun 2002 16:19:49 -0000
Delivered-To: qmlist-jakarta-archive-ant-user@jakarta.apache.org
Received: (qmail 15255 invoked by uid 97); 7 Jun 2002 16:19:48 -0000
Mailing-List: contact ant-user-help@jakarta.apache.org; run by ezmlm
Precedence: bulk
List-Unsubscribe: <mailto:ant-user-unsubscribe@jakarta.apache.org>
List-Subscribe: <mailto:ant-user-subscribe@jakarta.apache.org>
List-Help: <mailto:ant-user-help@jakarta.apache.org>
List-Post: <mailto:ant-user@jakarta.apache.org>
List-Id: "Ant Users List" <ant-user.jakarta.apache.org>
Reply-To: "Ant Users List" <ant-user@jakarta.apache.org>
Delivered-To: mailing list ant-user@jakarta.apache.org
Received: (qmail 15227 invoked by uid 98); 7 Jun 2002 16:19:47 -0000
X-Antivirus: nagoya (v4198 created Apr 24 2002)
Message-ID: <3D00DD08.2000909@pagesmiths.com>
Date: Fri, 07 Jun 2002 09:19:20 -0700
From: Jim White <jim@pagesmiths.com>
User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US;
 rv:1.0.0) Gecko/20020529
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: Ant Users List <ant-user@jakarta.apache.org>
Subject: Re: Get directory listing and iterate over
References: <88FC3D8B38457B44AFCCC959C84C108C04E9E97E@USILMS07.ca.com>
Content-Type: multipart/mixed;
 boundary="------------070109010505050305090101"
X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N
X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N

--------------070109010505050305090101
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Grinvald, Edward wrote:
> Since i can't seem to be able to get perl to work with <script>,
 > and javascript (luckily) can't access local filesystems (and is
 > therefore not a good substituion to perl), i am in a bit of confusion
 > as to how to do the following:
> I have a larget number 20+ of subprojects that i'd need to compile/build
 > /dist/etc. they are all under one src directory. Is there a way
 > for me to go that directory, get the listing, and then using antcall 
call
 > one function that will do everything (function already written) for
 > all the subdirectories/projects in that src directory, in one loop.

Both JavaScript (Rhino) and Java scripts (BeanShell) can use any Java 
class (including those of Ant), and so can perform any operation 
what-so-ever (it could be argued that Ant should use policy-based 
security for tasks and scripts, but such is not - yet - the case).

Anyhow, Rhino is easier to use than BeanShell since the configuration is 
simply drop-in the jar files, whereas BeanShell needs a line to added to 
a BSF (Bean Scripting Framework) configuration file.

Also, as the Dianne and Dominique say, adding custom tasks in Java is a 
simple thing.

Since this is an Ant FAQ, I've attached a sample that uses BeanShell. 
It should help you get started (converting to Rhino is pretty trivial, 
but this is some old code and I don't have time to test right now).

In this example, a <path> element is used to find all the "build.xml" 
files in sibling directories whose names match "plugin_*" and call a 
given target in each.  The name of each such directory is also <echo>'ed.

jim

--------------070109010505050305090101
Content-Type: text/xml; x-mac-type="0"; x-mac-creator="0";
 name="loopexample.xml"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="loopexample.xml"

<?xml version="1.0"?>
<project name="project" default="help" basedir=".">
   <path id="plugin-buildfiles">
     <fileset dir="..">
        <include name="plugin_*/build.xml"/>
     </fileset>
   </path>
   
   <target name="plugin-do">
      <script language="beanshell"><![CDATA[
         Object plugin_paths = project.getReferences().get("plugin-buildfiles");
         
         if (partner_paths == null) {
            Object failTask = project.createTask("fail");
            failTask.setMessage("The path 'plugin-buildfiles' is missing!");
            failTask.execute();
         }
         
         String[] buildfiles = plugin_paths.list();
         
         for (int i = 0; i < buildfiles.length; ++i) {
            String buildfilename = buildfiles[i];
            
            File buildfile = new File(buildfilename);
            File builddir = buildfile.getParentFile();
            
            Object echoTask = project.createTask("echo");
            echoTask.setMessage("Including plugin: " + builddir.getName());
            echoTask.execute();

            Object antTask = project.createTask("ant");
            antTask.setAntfile(buildfile.getName());
            antTask.setDir(builddir);
            
            String what = project.getProperty("what");
            
            if (what != null)
                antTask.setTarget(what);
            
            antTask.execute();
         }
      ]]></script>
   </target>

   <target name="plugins-build">
      <antcall target="plugin-do">
         <param name="what" value="build"/>
      </antcall>
   </target>
   
   <target name="plugins-clean">
      <antcall target="plugin-do">
         <param name="what" value="clean"/>
      </antcall>
   </target>

</project>


--------------070109010505050305090101
Content-Type: text/plain; charset=us-ascii

--
To unsubscribe, e-mail:   <mailto:ant-user-unsubscribe@jakarta.apache.org>
For additional commands, e-mail: <mailto:ant-user-help@jakarta.apache.org>
--------------070109010505050305090101--