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
