Skip some environment definitions on source-sh

[xdelaruelle]

When sourcing a script into a modulefile with source-sh command it may be useful to skip some kind of definitions (among environment variables, shell alias, shell function, shell completion and directory change)

[bkatkam123]

I think, it's better to export functions only when they are marked for export with 'export -f function_name'. All internal functions may not be useful.

[xdelaruelle]

I think, it's better to export functions only when they are marked for export with 'export -f function_name'. All internal functions may not be useful.

The idea of source-sh is to get the current environment defined as if shell script was sourced in current shell session. If internal functions are ignored, resulting environment will be different than if script was just sourced. I fear that something will get broken if non-exported function are ignored by source-sh.