[Modules] Is it possible to disable the default versions per user?

[Frank T. <f.t...@dk...>]

Dear all,

an other question: Is it possible to disable the default versions 
(.version files) per user(!) with some configuration? I haven't found 
any so far.

Background: We have a big software stack, which initially (yesrs ago) 
used to set default versions for the software packages.  In the meantime 
we don't do this any more (using "no version" as default version in the 
.version files) and we would like to also disable the default for all 
older packages.  Unfortunately this might have an impact (= break them) 
on many workflows on the cluster, as the modules are used in probably 
hundreds of scripts.  Therefore we would like to offer the users the 
possibility to test their scripts and workflows in a situation, where 
default package versions are not available.  Easiest would be, if they 
could switch on/off the usage of the .version files.

Setting the name of the version files could be an option, but this name 
seems to be hardcoded in modulecmd.tcl.

The only alternative that comes to my mind would be, that we completely 
duplicate the modulefiles and offer one legacy set (with defaults) and 
an other set w/o default.

Maybe you have other/better ideas, how we could achieve such a testing 
environment?

Cheers, Frank