I'm using SaltStack. I would like to auto-complete the minion name when calling the salt
command.
The following line has been added into ~/.bashrc
:
complete -o default -o nospace -W "$(sudo ls -1 /var/cache/salt/master/minions)" salt
Then typing salt inTab
→ salt integration-Tab
; I can see it works as expected:
$ salt integration-TabTab integration-c integration-u integration-u2
To use with sudo
, I have added complete -cf sudo
into ~/.bashrc
, but it didn't work:
sudo salt inTab
returned nothing.
I also have tried to install bash_completion
and added the following lines to ~/.bash_profile
:
if [ -f $(brew --prefix)/etc/bash_completion ]; then
. $(brew --prefix)/etc/bash_completion
fi
but no luck.
Did I miss something?
Update
Oh, the first thing I would like to say is sometimes it works:
$ sudo salt integration-TabTab integration-c integration-u integration-u2
and sometimes it doesn't.
So first, let's see how much your bash_completion package does.
How can I check that? Here's my function:
# a wrapper method for the next one, when the offset is unknown
_command()
{
local offset i
# find actual offset, as position of the first non-option
offset=1
for (( i=1; i <= COMP_CWORD; i++ )); do
if [[ "${COMP_WORDS[i]}" != -* ]]; then
offset=$i
break
fi
done
_command_offset $offset
}
# A meta-command completion function for commands like sudo(8), which need to
# first complete on a command, then complete according to that command's own
# completion definition - currently not quite foolproof (e.g. mount and umount
# don't work properly), but still quite useful.
#
_command_offset()
{
local cur func cline cspec noglob cmd i char_offset word_offset \
_COMMAND_FUNC _COMMAND_FUNC_ARGS
word_offset=$1
# rewrite current completion context before invoking
# actual command completion
# find new first word position, then
# rewrite COMP_LINE and adjust COMP_POINT
local first_word=${COMP_WORDS[$word_offset]}
for (( i=0; i <= ${#COMP_LINE}; i++ )); do
if [[ "${COMP_LINE:$i:${#first_word}}" == "$first_word" ]]; then
char_offset=$i
break
fi
done
COMP_LINE=${COMP_LINE:$char_offset}
COMP_POINT=$(( COMP_POINT - $char_offset ))
# shift COMP_WORDS elements and adjust COMP_CWORD
for (( i=0; i <= COMP_CWORD - $word_offset; i++ )); do
COMP_WORDS[i]=${COMP_WORDS[i+$word_offset]}
done
for (( i; i <= COMP_CWORD; i++ )); do
unset COMP_WORDS[i];
done
COMP_CWORD=$(( $COMP_CWORD - $word_offset ))
COMPREPLY=()
_get_comp_words_by_ref cur
if [[ $COMP_CWORD -eq 0 ]]; then
_compopt_o_filenames
COMPREPLY=( $( compgen -c -- "$cur" ) )
else
cmd=${COMP_WORDS[0]}
if complete -p ${cmd##*/} &>/dev/null; then
cspec=$( complete -p ${cmd##*/} )
if [ "${cspec#* -F }" != "$cspec" ]; then
# complete -F <function>
# get function name
func=${cspec#*-F }
func=${func%% *}
if [[ ${#COMP_WORDS[@]} -ge 2 ]]; then
$func $cmd "${COMP_WORDS[${#COMP_WORDS[@]}-1]}" "${COMP_WORDS[${#COMP_WORDS[@]}-2]}"
else
$func $cmd "${COMP_WORDS[${#COMP_WORDS[@]}-1]}"
fi
# remove any \: generated by a command that doesn't
# default to filenames or dirnames (e.g. sudo chown)
# FIXME: I'm pretty sure this does not work!
if [ "${cspec#*-o }" != "$cspec" ]; then
cspec=${cspec#*-o }
cspec=${cspec%% *}
if [[ "$cspec" != @(dir|file)names ]]; then
COMPREPLY=("${COMPREPLY[@]//\\\\:/:}")
else
_compopt_o_filenames
fi
fi
elif [ -n "$cspec" ]; then
cspec=${cspec#complete};
cspec=${cspec%%${cmd##*/}};
COMPREPLY=( $( eval compgen "$cspec" -- "$cur" ) );
fi
elif [ ${#COMPREPLY[@]} -eq 0 ]; then
_filedir
fi
fi
}
if you type
sudo mkdir
TabTab,
does it show a list of directories?
Yes:
$ sudo mkdir TabTab .FontForge/ .djangopypi2/ .ievms/ .ssh/ .wireshark-etc/
Best Answer
Check
set -o
to see if maybeposix
mode is enabled. If so, disable withset +o posix
In "posix" mode, bash's tab-completion is for some reason disabled in "vi-mode". I've not seen any explanation why this behavior is so, nor why it's specific to vi-mode, so I didn't bother explaining.
PS: This answer is more suited for someone who stumbles upon the question via a search engine... not for your particular setup.
Update:
Chet Ramey says: