On Thu, 4 Aug 2005, Eric Blake wrote:
> According to John Morrison on 8/4/2005 6:52 AM:
> >
> > I wouldn't have thought there would be much/any speed gained doing it
> > this way...?
>
> There's no speed difference, whether bash_completion is sourced by
> /etc/profile.d/completion.sh or by ~/.bashrc. The difference is that
> sourced by ~/.bashrc, the user explicitly turned it on, so they are aware
> that they caused the delay; plus multiple users sharing a machine can
> independently decide whether or not they want to take the delay. But with
> /etc/profile.d, the user has no choice; bash_completion WILL be sourced,
> and cause the delay.
What if the user has to set an environment variable for
/etc/profile.d/bash-completion.sh to run? You could check for that
environment variable in /etc/profile.d/bash-completion.sh and exit if it's
not set. And it's easier than editing their .bashrc...
BTW, one drawback of the /etc/profile.d approach is that it only works for
login shells.
> I'm afraid there are too many people who blindly install every package
> without realizing the implications, but I'm willing for the next release
> of bash-completion to use /etc/profile.d if there are enough complaints
> of why the user has to edit ~/.bashrc in addition to installing
> bash-completion. (I guess if I ever do add an /etc/profild.d hook, I'd
> have to make sure bash_completion is idempotent, so that sourcing it the
> second time is a no-op, rather than doubling the delay of users that
> already edited their ~/.bashrc.)
>
> > If somebody installs bash_completion then they shouldn't have a problem
> > with something taking longer, if they do, they should uninstall it
> > (removing the /etc/profile.d/ file) :)
>
> Removing the /etc/profile.d file is a partial solution, but then cygcheck
> would report the bash-completion package is incomplete.
You could also stick the file in /etc/defaults/etc/profile.d, and have the
config script copy it to /etc/profile.d...
Igor
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