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Posted to user@velocity.apache.org by sebb <se...@gmail.com> on 2008/05/23 15:07:34 UTC
How to check Velocity version?
How can one check the Velocity version from an Ant script?
I had a problem with Anakia generating the wrong line endings on
Linux; turned out it was due to Ant picking up the wrong version of
the Velocity jar.
It would be useful if one could check the version and report an error
if the version is earlier than 1.5 (say).
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Re: How to check Velocity version?
Posted by sebb <se...@gmail.com>.
On 02/06/2008, Will Glass-Husain <wg...@gmail.com> wrote:
> Is there a way to check the manifest file?
>
Neat idea!
A manifest resource can be loaded using
<javaresource name="META-INF/MANIFEST.MF" classpath="${velocity.jar}"/>
but when I tried this it found one of the JVM manifests rather than
the velocity one.
I then tried <zipentry> instead, and this works:
<loadresource property="implementation.version">
<zipentry name="META-INF/MANIFEST.MF" archive="${velocity.jar}"/>
<filterchain>
<linecontains>
<contains value="Implementation-Version: "/>
</linecontains>
<tokenfilter>
<!-- Remove all but the revision number -->
<replaceregex pattern=".+: " replace=""/>
</tokenfilter>
</filterchain>
</loadresource>
<echo>${implementation.version}</echo>
However, this only applies if the script knows the name of the velocity jar.
If the jar is only available via a classpath, it gets a lot harder.
Maybe there should be an Ant task to look up / parse manifests...
>
>
> On Mon, Jun 2, 2008 at 7:56 AM, sebb <se...@gmail.com> wrote:
>
> > That's what I ended up doing:
> >
> > <available classpathref="anakia.classpath"
> > classname="org.apache.velocity.io.UnicodeInputStream"
> > property="velocity.version.15"/>
> >
> > But it would be nice if there was a simpler way to do this.
> >
> > On 02/06/2008, Claude Brisson <cl...@renegat.net> wrote:
> > > You would typically check for the presence of a class that has been
> > > added since 1.5 - the typical getVersion() stuff hasn't been put yet in
> > > Velocity.
> > >
> > >
> > > Claude
> > >
> > > Le vendredi 23 mai 2008 à 14:07 +0100, sebb a écrit :
> > >
> > > > How can one check the Velocity version from an Ant script?
> > > >
> > > > I had a problem with Anakia generating the wrong line endings on
> > > > Linux; turned out it was due to Ant picking up the wrong version of
> > > > the Velocity jar.
> > > >
> > > > It would be useful if one could check the version and report an error
> > > > if the version is earlier than 1.5 (say).
> > > >
> > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
> > > > For additional commands, e-mail: user-help@velocity.apache.org
> > > >
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
> > > For additional commands, e-mail: user-help@velocity.apache.org
> > >
> > >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
> > For additional commands, e-mail: user-help@velocity.apache.org
> >
> >
>
>
> --
>
> Forio Business Simulations
>
>
> Will Glass-Husain
> wglass@forio.com
> www.forio.com
>
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Re: How to check Velocity version?
Posted by Will Glass-Husain <wg...@gmail.com>.
Is there a way to check the manifest file?
On Mon, Jun 2, 2008 at 7:56 AM, sebb <se...@gmail.com> wrote:
> That's what I ended up doing:
>
> <available classpathref="anakia.classpath"
> classname="org.apache.velocity.io.UnicodeInputStream"
> property="velocity.version.15"/>
>
> But it would be nice if there was a simpler way to do this.
>
> On 02/06/2008, Claude Brisson <cl...@renegat.net> wrote:
> > You would typically check for the presence of a class that has been
> > added since 1.5 - the typical getVersion() stuff hasn't been put yet in
> > Velocity.
> >
> >
> > Claude
> >
> > Le vendredi 23 mai 2008 à 14:07 +0100, sebb a écrit :
> >
> > > How can one check the Velocity version from an Ant script?
> > >
> > > I had a problem with Anakia generating the wrong line endings on
> > > Linux; turned out it was due to Ant picking up the wrong version of
> > > the Velocity jar.
> > >
> > > It would be useful if one could check the version and report an error
> > > if the version is earlier than 1.5 (say).
> > >
> >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
> > > For additional commands, e-mail: user-help@velocity.apache.org
> > >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
> > For additional commands, e-mail: user-help@velocity.apache.org
> >
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
> For additional commands, e-mail: user-help@velocity.apache.org
>
>
--
Forio Business Simulations
Will Glass-Husain
wglass@forio.com
www.forio.com
Re: How to check Velocity version?
Posted by sebb <se...@gmail.com>.
That's what I ended up doing:
<available classpathref="anakia.classpath"
classname="org.apache.velocity.io.UnicodeInputStream"
property="velocity.version.15"/>
But it would be nice if there was a simpler way to do this.
On 02/06/2008, Claude Brisson <cl...@renegat.net> wrote:
> You would typically check for the presence of a class that has been
> added since 1.5 - the typical getVersion() stuff hasn't been put yet in
> Velocity.
>
>
> Claude
>
> Le vendredi 23 mai 2008 à 14:07 +0100, sebb a écrit :
>
> > How can one check the Velocity version from an Ant script?
> >
> > I had a problem with Anakia generating the wrong line endings on
> > Linux; turned out it was due to Ant picking up the wrong version of
> > the Velocity jar.
> >
> > It would be useful if one could check the version and report an error
> > if the version is earlier than 1.5 (say).
> >
>
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
> > For additional commands, e-mail: user-help@velocity.apache.org
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
> For additional commands, e-mail: user-help@velocity.apache.org
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
For additional commands, e-mail: user-help@velocity.apache.org
Re: How to check Velocity version?
Posted by Claude Brisson <cl...@renegat.net>.
You would typically check for the presence of a class that has been
added since 1.5 - the typical getVersion() stuff hasn't been put yet in
Velocity.
Claude
Le vendredi 23 mai 2008 à 14:07 +0100, sebb a écrit :
> How can one check the Velocity version from an Ant script?
>
> I had a problem with Anakia generating the wrong line endings on
> Linux; turned out it was due to Ant picking up the wrong version of
> the Velocity jar.
>
> It would be useful if one could check the version and report an error
> if the version is earlier than 1.5 (say).
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@velocity.apache.org
> For additional commands, e-mail: user-help@velocity.apache.org
>
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