Re: Using "module load" in a modulefile

[Leo B. <lb...@Br...>]

Dave Barnett wrote:

> One suggestion I might make is that you do something similar to how
> we've done a few of our modules.
> 
> 1.  In the module file proj1, do setenv SYNOPSYS_VER "1999.10", and then
> just do module load Synopsys (i.e. don't specify a version here, use the
> default one supplied by the .version file).
> 2.  Make your Synopsys/.version file look similar to this:
>         #%Module1.0
>         set ModulesVersion = "1999.05"
>         if { [info exists env(SYNOPSYS_VER)] } {
>             set ModulesVersion = $env(SYNOPSYS_VER)
>         }
> [snip]

Hello, Dave.

There was another aspect to this scenario, which is "what happens
if someone UNLOADS a module that was loaded in proj1 rather than
just SWITCHING it?"  This will also cause an "unload" or "switch"
operation on proj1 to bomb out with an error.

I think I've found a way to handle this (seems to work here) as
follows.

1. In "proj1", put the initial "setenv PROG_VER 1.0" type
   statements into an "if" statement:

   if [module-info mode load] {
     setenv SYNOPSYS_VER 1999.10
     setenv VCS_VER 5.0
   }

2. Add an "if" statment around each "module load" statement:

   if [info exists env(SYNOPSYS_VER)] {
     module load Synopsys
   }

Now, during a "module unload proj1", any "module load" statements
will be skipped if their environment variables aren't set.  This
works for a "switch", as well.

As a note, I'd like to see modules handle these sorts of conditions
"automatically".  Anyone else agree?  R.K., are you taking any
feature requests at this time?  :-)

At any rate, hope this helps someone with a similar need.

Cheers,

- Leo

----------------------------------------------------------------------
Leo Butler                                             Senior Engineer
Brocade Communications                           Phone: (408) 487-8096
1901 Guadalupe Parkway                           Fax:   (408) 487-8090
San Jose, CA 95131                          mailto:lb...@br...