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From: Paul FM <pa...@um...> - 2017-08-03 18:59:11
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As for your tcl code,
You might want use locale variables and set sane values before parsing and then enclose your code to read $env into those variables, in a catch block. Like this:
set os_distro "unknown"
set ... "unknown"
set ... "unknown"
catch {
set os_distro $env(DISTRO)
set ...
set ...
}
switch "${os_distro}" {
...
}
That way, if for some reason DISTRO isn't set, your module file won't crash.
Note: I tend to quote and escape my environment variables for good measure.
On 8/3/2017 1:39 PM, Sternberg, Michael G. wrote:
> Frank,
>
> Distro-detection and distro-specific code inside individual modulefiles would be repetitive and fragile, and would quickly become difficult to maintain. For a multi-distro system here, I use several modulefile trees, presenting distro-specific trees before shared ones:
>
> $ echo $MODULEPATH
> /opt/apps/M/el6:/opt/apps/M/el:/usr/share/Modules/modulefiles:/etc/modulefiles
>
>
> To add to what Paul just wrote, lsb_release(1) is provided on CentOS by package redhat-lsb-core. As part of scripts in /etc/profile.d/, I use:
>
> $ lsb_release -sir
> CentOS 6.9
>
> Has a nice ring to it and is easy to parse.
>
>
> With best regards,
> Michael
>
>
>> On 2017-08-03, at 12:53 , Frank Thommen <f.t...@dk...> wrote:
>> I am currently trying to generalize our modulefiles so that the same file can be used for different Linux distros. For historical reasons, openSuSE and CentOS hosts @work have different base paths of their respective software stack.
>>
>> Therefore my question: Is there a simple Tcl command that allows me to detect the current Linux distribution or how could I detect it otherwise? I can do it with bash, but I have no knowledge of Tcl other than our very basic and simple modulefiles.
>>
>> Any hint is appreciated.
>>
>> Cheers
>> frank
>
>
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