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From: Götz W. <goe...@de...> - 2021-10-19 14:53:01
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Hi everyone, I have noticed a problem with environment-modules since upgrading to CentOS8. The startup file /usr/share/Modules/init/zsh modifies the variable $FPATH that defines the function search path used by zsh. If the variable is modified from its default, it is inherited by singularity when running a container, breaking functionality if this container has a different version of zsh. Here's an example of this behaviour: [wgs03] ~ % echo $FPATH /usr/share/Modules/init/zsh-functions:/usr/local/share/zsh/site-functions:/usr/share/zsh/site-functions:/usr/share/zsh/5.5.1/functions [wgs03] ~ % singularity run /project/singularity/images/SL6.img ************************************************************************ * You are now running a shell in a Singularity container providing a * * Scientific Linux 6 environment. Most things should just work as if * * you had just logged in to such a system, but there are differences. * ************************************************************************ /etc/site/zshrc:72: compinit: function definition file not found [wgs03:SL6] ~ % echo $FPATH /usr/share/Modules/init/zsh-functions:/usr/local/share/zsh/site-functions:/usr/share/zsh/site-functions:/usr/share/zsh/5.5.1/functions If I remove environment-modules from the system, this problem doesn't occur: [wgs03] ~ % echo $FPATH /usr/local/share/zsh/site-functions:/usr/share/zsh/site-functions:/usr/share/zsh/5.5.1/functions [wgs03] ~ % singularity run /project/singularity/images/SL6.img ************************************************************************ * You are now running a shell in a Singularity container providing a * * Scientific Linux 6 environment. Most things should just work as if * * you had just logged in to such a system, but there are differences. * ************************************************************************ [wgs03:SL6] ~ % echo $FPATH /usr/share/zsh/site-functions:/usr/share/zsh/4.3.11/functions So every time, $FPATH is modified, it is inherited by the container. I'd prefer it if zsh wouldn't modify $FPATH. Wouldn't it work as well if _module was placed in /usr/share/zsh/site-functions? My test regarding this was fine. Regards, Götz Waschk -- Götz Waschk ° Phone: +49 33762 77169 Deutsches Elektronen-Synchrotron DESY ° E-Mail: goe...@de... Platanenallee 6 15738 Zeuthen Germany |
