On Friday, 28 November 2014 09:02:56 UTC, Geir Hauge wrote:
> 2014-11-28 9:43 GMT+01:00 steveT <stevet...@yahoo.co.uk>:
>
>
> OK - found the functions that are appearing. I was grepping BASH_FUNC__ in
> etc - wrong. The functions are in the /usr/share/bash-completion/completions
> directory - and exist as rcs and sudo files. The code in those files defines
> functions for _rcs and _sudo respectively. The rcs file contains:
>
>
>
> # bash completion for rcs -*- shell-script
> -*-
>
>
>
> _rcs()
>
> {
> [--snipp--]
>
> } &&
>
> complete -F _rcs ci co rlog rcs rcsdiff
>
>
>
> # ex: ts=4 sw=4 et filetype=sh
>
>
>
> OK - so that is the code that appears in my environment as BASH_FUNC__rcs -
> now the question is - why - and why does it persist? I am not aware of using
> completion with sudo or rcs - so where/why/how in bash do these /usr/share
> scripts get actioned?
>
>
> The third-party bash-completion package sets a "default completion function"
> (see it with complete -p -D; declare -f _completion_loader) that dynamically
> loads completions. For instance, if you do
>
>
> $ rcs TAB
>
>
> And there is not already a completion loaded for rcs, It will look for
> /usr/share/bash-completion/completions/rcs, source it if it finds it, then
> use the new completion. This in itself will not cause the function to be
> exported. I can only think of two ways of the function being exported, and
> that's by
>
>
> 1. specifically exporting it with ''export -f _rcs'' or ''declare -xf _rcs''
>
> 2. you happen to run ''set -a'' at some point before the completion function
> gets dynamically loaded. When ''set -a'' is in effect, all variables and
> functions you define get automatically exported. If the output of ''echo
> "$-"'' contains 'a', then it is in effect.
>
> --
>
> Geir Hauge
Geir,
The set -a route must be it, as the echo shows -a being set and looking at the
.bash_profile , it uses set -a. Also - when using 'set', I don't see the rcs or
sudo completion being there, so presumably, at some point in my working day,
the rcs/sudo completion is loaded and because of the set -a, then appears in my
environment.
Thanks Geir and all for your help.
