Thread: [Jython-dev] Re: [Jython-users] How to add support for other OS's in Jython installer?

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[Moved to jython-dev and cc'ed: liftoff-users]

[Brad Clements]

>I'd like to add support for NetWare in the installer.. How do I go about doing that?

Start by checking out the CVS version of liftoff.

   http://sourceforge.net/projects/liftoff/

Build liftoff by running "bootstrap" and then "build" from within the
"src" directory. Before running liftoff, some directories must be
configured in the data/builder.properties file:

   # name of the list of stdandard files
   stdlist=i:\\java\\liftoff\\data\\def_list.list

   # name of the directory that contains the installer classes 
   installer=i:\\java\\liftoff\\data\\installer

   # Jar loader class
   install_class=i:\\java\\liftoff\\data\\Install.class

In src\installer\net\sourceforge\liftoff\installer you will find a
os.properties file that maps the os.name to a platform action class.

A new action class must most likely be created: NetwareAction.java. Use
the WindowsAction class as a beginning.

>The OS type reported (on my platform) is "NetWare 5.00", though "NetWare*" should 
>be used to match any version of NetWare.
>
>To install, the .class needs to be unzipped somewhere (I suggest sys:Jython)

By default the installer picks the user.home property. If that property
is initialized by the netware JVM, we should just use that.

>(yes, that's right, "sys:Jython"  NetWare uses volume:path/path/file) 

Perhaps the path handling code in liftoff can deal with that already.
Perhaps not.

>After unzipping to the target directory (wherever the user specified, might be 
>vol1:jython) these steps are needed:
>
>1. Add jython.jar to classpath by appending a line like this to the file sys:etc/java.cfg
>
>CLASSPATH=$CLASSPATH;sys:Jython/jython.jar
>
>(substitute the correct path)

I don't yet have a wellformed opinion about this, but I would prefer if
the installation set the classpath in the script files if at all
possible. Not only does that match windows and unix behavior, it also
avoids a lot of problems with proper access rights to sys:etc (I guess).

>(anyone know if SERVLETCLASSPATH should be updated as well?)

These changes to sys:etc/java.cfg should instead be described in
doc/readme files.

>2. Create two files in the target installation directory, like this:
>
>filename:  jython.ncf
>
>Contents:
>
>java -ns -Dpython.home=sys:jython org.python.util.jython %1 %2 %3 %4 %5 %6 %7 %8 %9
>
>
>Note that the correct path needs to be inserted in place of "sys:jython", there's just one 
>line in the .ncf file.
>
>filename: jythonc.ncf
>
>Contents:
>
>java -ns -Dpython.home=sys:jython org.python.util.jython 
>"sys:jython/Tools/jythonc/jythonc.py" %1 %2 %3 %4 %5 %6 %7 %8 %9
>
>(should be all one line, also put the correct path to sys:jython in both locations)

That's relative easy with liftoff. A new builder property
"exec.template.netware" must be added to liftoff and two jython specific
template files must be added jython.

>3. Admonish the user after installation with the following message:
>
>------
>You must unload java to complete the installation. Unload java by typing the command 
>"unload java" at the system console. Note that this will unload any DirXML drivers you 
>may have loaded.
>
>You may wish to add <installationdir> to the system search path by adding the following 
>line to sys:system/autoexec.ncf:
>
>search add <installationdir>
>-----
>(replace <installationdir> with the appropriate path to where the .ncf files ended up)
>

That is easy with liftoff's templates.

>If someone could tell me how to make these changes to the installer (and submit a 
>patch) or if someone could just make the changes and I'll test (hint hint) I'd would be 
>very happy, and so would many NetWare users..

Absolutely.  Making it easier for netware users to use jython would be a
good thing for all.

When I create the installable jython-21a1.class I run this windows
script from within the jython CVS directory:

java -Ddatadir=i:\java\liftoff\data -cp i:\java\liftoff\lib\LiftOff.jar
      net.sourceforge.liftoff.builder.Main

where i:\java\liftoff is the CVS version of liftoff. I open the
installer\liftoff.props file with the file/open and create the class
with Create/Class menu.

If you can't upload patches to the liftoff project, you can put them
under the jython project instead. I have commit rights to liftoff and
will be able to commit them.

regards,
finn