[Pkg-sysvinit-devel] Re: Fixing hwclock.sh

[Miquel van Smoorenburg]

On Fri, 2006-01-06 at 15:39 +0100, Thomas Hood wrote:
> Henrique de Moraes Holschuh wrote, in part:
> > any sourced scripts needing to set variables might well
> > need to start subshells, or play "restore on exit" games, which are a sad
> > thing to have everywhere.
> 
> 
> Yes.
> 
> If any script would have to create a subshell in order to protect the sourcer's
> environment then it shouldn't be a .sh script.

Ehm, well:

        case "$i" in
                *.sh)
                        # Source shell script for speed.
                        (
                                trap - INT QUIT TSTP
                                set start
                                . $i
                        )
                        ;;

.. *.sh script are already sourced in a subshell.

"exit" is survived:

$ ash -c '( exit 1 ); echo bar'
bar

.. and so is "set -e":

$ ash -c '( set -e; skjdhkshds; echo foo ); echo bar'
ash: skjdhkshds: not found
bar

Mike.