Sound very like <antcontrib:foreach> ... Jan
>-----Ursprüngliche Nachricht----- >Von: Martin Holst Swende [mailto:martin.holst_swe...@msc.se] >Gesendet: Donnerstag, 18. Dezember 2008 10:16 >An: Ant Developers List >Betreff: New iterating task > >Hi all, > >I have a little utility-task that I wrote because I did not find any >better alternative - but maybe I missed something obvious. So >I thought >I would contribute it, if there is any interest. > >Anyway, it is a kind of file iterator meant to be used on >tasks that are >not written to handle multiple files. Also a few other uses, such as >manipulating and/or preserve paths and filenames in the process . Here >is how I use it : > > <taskdef resource="antutilstasks" classpath="jar/antutils.jar" /> > > <target name="testiterate"> > <iterate target="myecho"> > <fileset dir="." includes="**\*.java" /> > <param name="test" value="Works fine" /> > </iterate> > </target> > > <target name="myecho"> > <echo> > Dir : ${dir} > Path : ${path} > Filename:${filename} > Extension:${extension} > Extra-param: ${test} > </echo> > </target> > > >What it does is, for each entry in the fileset, it calls the target >(myecho), and sets these properties : dir, path, filename, >extension and >any supplied extra parameters. It just lists files, so far. > >The fully qualified path is created in this manner : > >dir + path + filename + "." + extension > > >One way of using it is if I have a dir-structure, say a photoalbum, >where thumbnails have already been generated in the same >structure. If I >want to copy all thumbnails, but keep their directory >structure, normal >file-copy will not suffice (since it will copy all to same directory). >But I can do this : > > <target name="copythumbs"> > <iterate target="mycopy"> > <fileset dir="photos" includes="**\*_thumb.jpeg" /> > </iterate> > </target> > <target name="mycopy"> > <copy file="${dir}${path}${filename}.${extension}" >todir="thumbs/${path}"/> > </target> > >The todir will retain path, and copy files into e.g >"thumbs/2008/01/21/img01_thumb.jpg" . > >And if I have a task that scales images, I could set it up like this : > > <target name="createthumbs"> > <iterate target="mythumbgenerator"> > <fileset dir="photos" includes="**\*.jpeg" /> > <param name="size" value="100x100" /> > </iterate> > </target> > <target name="mythumbgenerator"> > <rescale file="${dir}${path}${filename}.${extension}" >outfile="thumbs/${path}${filename}_thumb.${extension}" size="${size}"/> > </target> > >This way, I can iterate a task not built for it (in this case >"rescale") >and be pretty flexible with the input parameters to that task. > >So, have I re-invented the wheel? > >Regards, >Martin Holst Swende > >-- >Martin Holst Swende ................. MSC Konsult AB >tel: +46(0)70 9519098 ............... Vasagatan 52 >martin.holst_swe...@msc.se .......... 111 20 Stockholm > > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: dev-unsubscr...@ant.apache.org >For additional commands, e-mail: dev-h...@ant.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@ant.apache.org For additional commands, e-mail: dev-h...@ant.apache.org
