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
> >
> >
>
>
>
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