Re: [nant-dev] New to the list

[Ian MacLean]

Looks good. I see I misread the intent of exists() initially. These will 
be very useful. Good work Jarek

Ian

Jaroslaw Kowalski wrote:

OK. I'd like to gather current ideas (with some minor modifications) with
one-line summaries:
fileset::exists(id) - checks whether fileset named "id" is defined in
current project
fileset::get-file-count(id) - returns the number of files matched by the
fileset "id"
fileset::is-empty(id) - checks whether fileset named "id" matches zero files
(a shortcut function - same thing can be achieved by
fileset::get-file-count(id)=0)
fileset::get-file-name(id,n) - returns the n-th file from the fileset
(according to some ordering)
fileset::to-string(id,separator) - returns a list of files from the fileset
'id' separated by 'separator'
fileset::contains(id,filename) - checks whether the fileset 'id' contains
file 'filename'
Any corrections or new ideas ?

Jarek

----- Original Message ----- 
From: "Ian MacLean" <[EMAIL PROTECTED]>
To: "Horsfield, Peter A" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Friday, March 19, 2004 5:57 PM
Subject: Re: [nant-dev] New to the list

 

how about:
to-string() or to-delimited-string() which is a bit of a mouthful ?
oh and why not fileset::count() instead of or as well as
fileset::is-empty() ?
Ian

Horsfield, Peter A wrote:

   

Please don't call it flatten.

That's already used in the context of taking files from subdirectories
and placing them in one single directory.
On the other hand the ability to arbitrarily take a list of items and
     

create
 

a
single delimited array would be useful to me. I already have C# embedded
scripts that do this for arrays of properties.
This concatenation could be done for any Collection that could be
enumerated.
Is this the case for filesets?
Two cents,

Peter

-----Original Message-----
From: Jaroslaw Kowalski [mailto:[EMAIL PROTECTED]
Sent: Friday, March 19, 2004 10:24 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: [nant-dev] New to the list
I'd like to propose a new function set that would help solve the issue of
generating a classpath from a list of files. The functions deal with
     

named
 

filesets like this:

<project>
  <fileset id="zzz">
      <includes name="*.cs" />
  </fileset>
  <fileset id="rrr">
      <includes name="*.csu7987987" />
  </fileset>
  <echo message="flatten: ${fileset::flatten('zzz',';')}" />
  <echo message="exists: ${fileset::exists('zzz')}" />
  <echo message="exists: ${fileset::exists('zzz2')}" />
  <echo message="is-empty: ${fileset::is-empty('zzz')}" />
  <echo message="is-empty: ${fileset::is-empty('rrr')}" />
  <echo message="file-count: ${fileset::get-file-count('zzz')}" />
  <echo message="file-name[0]: ${fileset::get-file-name('zzz',0)}" />
</project>
Proposed implementation is attached (no help yet, but if we decide this
should go in, I'll write some help text).
With this you'd be able to do:

<fileset id="jarfiles">
  <includes name="${ant.home}/lib/*.jar" />
</fileset>
<exec commandline "...-classpath ${fileset::flatten('jarfiles',';')}...
     

"
 

/>

I believe that this technique would be useful in many more places. Should
     

I
 

commit?

Jarek

----- Original Message ----- 
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, March 19, 2004 2:57 PM
Subject: [nant-dev] New to the list



     

Hi everyone!  I joined this list because there are some differences

       

between

     

Nant and Ant which have been causing me trouble.  I wanted to post my
solutions in the hopes that they may be useful.  If it's stuff that's
already been thought of, just tell me to shut up :)
The first problem I ran up against was running Ant from Nant.  On the
Windows platform, Ant is run through a batch file which does not
communicate the program exit code.  So the Nant build always believes
that the Ant build succeeded.  To get around this, I actually call the
Java class file like so:
      <exec
          program="${java.home}/bin/java.exe"
          workingdir="${mbpa.home}"
          commandline="-classpath ${ant.cp}
org.apache.tools.ant.launch.Launcher build"
          failonerror="true"
          />
This is obviously not a problem, however getting the classpath correct
is
       

a

     

pain because you have to add all the jars in the ant/lib directory
since Nant doesn't have any clue what a Java classpath is.  To achieve
this, I wrote a little script:
      <script language="C#">
          <code><![CDATA[
              public static void ScriptMain( Project project ) {
                  string ald = project.Properties["ant.home"] +
       

"/lib";
 

                  string jh = project.Properties["java.home"];
                  string cp = jh + "/lib/tools.jar";
                  DirectoryInfo di = new DirectoryInfo(ald);
                  FileInfo[] files = di.GetFiles("*.jar");
                  foreach (FileInfo fi in files)
                      cp += ";" + ald + "/" + fi.Name;
                  project.Properties["ant.cp"] = cp;
              }
          ]]></code>
      </script>
It's a simple script and it has been working very well for me.  Is
there a better way to do this?  I guess what I want to achieve
eventually is an
       

Ant

     

task for Nant.  I imagine it would require that a Java task also be
created.  Is anybody else working on this kind of thing?  I'd
appreciate some suggestions on what it would take to start working on
an Ant task. And if you don't think this is desirable, please speak up
so that I don't waste my time.
Alright, the second thing I ran into is a big annoyance to me.  Ant
has
       

the

     

ability to load a properties file using the following:

  <property file="build.properties" />

I could not find anything similar to this in Nant, so please tell me
if I just missed something.  I want to share a properties file between
Nant and Ant, so I needed something that would load the properties
       

from that file. To do this, I wrote the following script outside of a
     

target:

  <script language="C#">
      <code><![CDATA[
          public static void ScriptMain( Project project ) {
              try {
                  string prop_file = project.Properties["prop.file"];
                  using (StreamReader sr = new
StreamReader(prop_file))
       

{

     

                      string line;
                      while ((line = sr.ReadLine()) != null) {
                          Regex re = new
Regex("^\\s*([\\w_\\-\\.]+)\\s*=\\s*(.*?)\\s*$");
                          if (re.IsMatch(line)) {
                              Match m = re.Match(line);
                              string prop_name =
       

m.Groups[1].ToString();
 

                              string prop_val =
       

m.Groups[2].ToString();
 

                              // The following line does semantic
processing on the property before
                              // adding it to the list of properties.
                              prop_val =
project.Properties.ExpandProperties(prop_val, Location.UnknownLocation);
                              project.Properties[prop_name] =
       

prop_val;
 

                          }
                      }
                  }
              }
              catch (Exception exc) {
                  throw new BuildException("Exception caught while
loading properties file:\n" + exc.Message);
              }
          }
      ]]></code>
  </script>
This is also a bit of functionality that I'd like to add to Nant.
This code doesn't verify the property file at all, it just finds lines
that
       

look

     

like properties and ignores the rest.  Also, there's this line:

  prop_val = project.Properties.ExpandProperties(prop_val,
Location.UnknownLocation);
This line seems troublesome to me because if something later changes
one
       

of

     

those properties, the dependent properties will not change.  I did try
to mark the properties as dynamic through the PropertyDictionary, but
Nant comes back with an error explaining that MarkDynamic is not
defined.  Any suggestions on how to fix this?  And how much validation
would be required for a properties file in order to add the same
properties file
       

capabilities

     

that Ant has to Nant?

Thanks for your time,

Dustin



-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
_______________________________________________
nant-developers mailing list [EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/nant-developers


       



     

The information contained in this e-mail transmission is privileged
           

and/or confidential intended solely for the exclusive use of the individual
addressee. If you are not the intended addressee you are hereby notified
that any retention, disclosure or other use is strictly prohibited. If you
have received this notification in error, please immediately contact the
sender and delete the material.
 

           

-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
_______________________________________________
nant-developers mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/nant-developers
     

--
Ian MacLean, Developer,
ActiveState, a division of Sophos
http://www.ActiveState.com


-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
_______________________________________________
nant-developers mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/nant-developers
   



-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
_______________________________________________
nant-developers mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/nant-developers
 



--
Ian MacLean, Developer, 
ActiveState, a division of Sophos
http://www.ActiveState.com



-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
_______________________________________________
nant-developers mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/nant-developers