I don't know why nant won't recognize the <script> task. I did notice a bug below. The function needs to be static! I don't know whether that has anything to do with nant not recognizing the <script> task.
As far as I know, you don't need to escape the '>='. I see that you are negating the results of the function... You could change the function name to 'version-less-than' and change the return statement to: return v1 < v2; and then you won't need to negate the function call. Let me know if you have any other problems. -- Edwin G. Castro Firing Systems Engineer [EMAIL PROTECTED] -----Original Message----- From: Jeroen Zwartepoorte [mailto:[EMAIL PROTECTED] Sent: Friday, August 13, 2004 11:21 AM To: Castro, Edwin Gabriel (Firing Systems Engr.) Cc: Gert Driesen; [EMAIL PROTECTED] Subject: RE: [Nant-users] checking nant version Hmm, nant is not recognizing the <script> task: Invalid element <script>. Unknown task or datatype. It doesn't seem to matter where i put the <script> task in the build file. Is this a bug in a recent nightly build? (i'm using nant-0.85-20040809). Btw: it seems "nant.version" is a predefined property. So i don't need the "${assembly::get-version(nant::get-location())}" bit. Are these properties documented somewhere? Jeroen p.s. relevant bits from default.build below (does the greater than sign in "v1 >= v2" need to be escaped btw?): <!-- script hack for checking nant versions --> <script language="C#"> <code><![CDATA[ [Function("version-greater-or-equal")] public bool VersionGreaterOrEqual (string version1, string version2) { Version v1 = new Version (version1); Version v2 = new Version (version2); return v1 >= v2; } ]]></code> </script> <!-- check for pkg-config dependencies and initialize properties --> <target name="init" description="initializes build properties"> <!-- check for an up-to-date nant --> <if test="${not(script::version-greater-or-equal(nant.version, nant.neededversion))}"> <echo message="MonoDevelop requires nant version ${nant.neededversion} or greater"/> <fail message="nant version not supported"/> </if> On Fri, 2004-08-13 at 12:45 -0500, Castro, Edwin Gabriel (Firing Systems Engr.) wrote: > I would recommend that you use the <script> task to create your own > custom function taking two strings and returning a boolean. You can > then use the System.Version class to actually do the comparison. > Something like this: > > <script language="C#"> > <code><![CDATA[ > [Function("version-greater-or-equal")] > public bool VersionGreaterOrEqual(string version1, string version2) > { > Version v1 = new Version(version1); > Version v2 = new Version(version2); > return v1 >= v2; > } > ]]></code> > </script> > > You can then call it like this: > > <property name="nant.version" value="0.85.1684.0"/> <property > name="nant.currentversion" > value="${assembly::get-version(nant::get-location())}"/> > > <if test="${script::version-greater-or-equal(nant.currentversion, > nant.version)}"> > <!-- Do something --> > </if> > > I'm sure there are other ways too! > > -- > Edwin G. Castro > Firing Systems Engineer > [EMAIL PROTECTED] > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Jeroen > Zwartepoorte > Sent: Friday, August 13, 2004 8:26 AM > To: Gert Driesen > Cc: [EMAIL PROTECTED] > Subject: Re: [Nant-users] checking nant version > > Hi Gert, > > Thanks for the quick reply. Still have a question though: > > How do i actually check if the current nant version is >= than the > version i need? > > I now have this: > > <property name="nant.version" value="0.85.1684.0"/> > > and > > <property name="nant.currentversion" value="${assembly::get-version > (nant::get-location())}"/> > > How do i compare these two values? It looks like i could extract the > major, minor, build and revision numbers using the version::get-* > functions, but i still need some sort of string::compare function in > order to actually compare them... > > How do i do this? (i don't see any functions in the docs which support > this) > > Thanks, > > Jeroen > > On Fri, 2004-08-13 at 19:06 +0200, Gert Driesen wrote: > > ----- Original Message ----- > > From: "Jeroen Zwartepoorte" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Friday, August 13, 2004 4:28 PM > > Subject: [Nant-users] checking nant version > > > > > > > Hi, > > > > > > Is there some example nant XML that checks that nant is actually > > > able to build the project in question? So "nant.version >= > > > 0.85-20040810" for example? So you can tell the user that he has > > > to upgrade his nant if he wants to build the project. > > > > You can use assembly::get-version(nant::get-location()) to get the > > full version of NAnt. > > > > > Seems very useful to me when you're using the latest stuff like > > > filterchains. Also prevents a lot of possible FAQ from appearing > > > on > irc. > > > > I agree. We'll need to think of a more generic way to accomplish this. > > > > > btw: do the nant devs hang around on irc? If so, which server and > > > what channel? > > > > I hang around on the #mono channel on ircd.gimp.org > > > > Gert > > > > > > > > ------------------------------------------------------- > SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media > 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save > 50% off Retail on Ink & Toner - Free Shipping and Free Gift. > http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 > _______________________________________________ > Nant-users mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/nant-users > > ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 _______________________________________________ Nant-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/nant-users
