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bash-completion: systemctl: re-implement __filter_units_by_properties()

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This also unifies __filter_units_by_property() and
__filter_units_by_properties(), and makes completion for 'restart',
'reload' or 'stop' show more candidates.
This commit is contained in:
Yu Watanabe 2018-09-12 12:36:22 +09:00
parent eda193578e
commit f28255e2d5
1 changed files with 58 additions and 49 deletions
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107
shell-completion/bash/systemctl.in
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@ -21,44 +21,34 @@ __contains_word () {
done
}
__filter_units_by_property () {
local mode=$1 property=$2 value=$3 ; shift 3
local units=("$@")
local props i
IFS=$'\n' read -rd '' -a props < \
<(__systemctl $mode show --property "$property" -- "${units[@]}")
for ((i=0; $i < ${#units[*]}; i++)); do
if [[ "${props[i]}" = "$property=$value" ]]; then
echo " ${units[i]}"
fi
done
}
__filter_units_by_properties () {
local mode=$1 properties=$2 values=$3 ; shift 3
local mode=$1 properties=$2; shift 2
local units=("$@")
local props i j conditions=()
IFS=$'\n' read -rd '' -a props < \
<(__systemctl $mode show --property "$properties" -- "${units[@]}")
IFS=$',' read -r -a properties < <(echo $properties)
IFS=$',' read -r -a values < <(echo $values)
for ((i=0; i < ${#properties[*]}; i++)); do
for ((j=0; j < ${#properties[*]}; j++)); do
if [[ ${props[i]%%=*} == ${properties[j]} ]]; then
conditions+=( "${properties[j]}=${values[j]}" )
local props i p n
local names= count=0
IFS=$',' read -r -a p < <(echo "Names,$properties")
n=${#p[*]}
readarray -t props < \
<(__systemctl $mode show --property "Names,$properties" -- "${units[@]}")
for ((i=0; i < ${#props[*]}; i++)); do
if [[ -z ${props[i]} ]]; then
if (( count == n )) && [[ -n $names ]]; then
echo $names
fi
done
done
for ((i=0; i < ${#units[*]}; i++)); do
for ((j=0; j < ${#conditions[*]}; j++)); do
if [[ "${props[i * ${#conditions[*]} + j]}" != "${conditions[j]}" ]]; then
break
names=
count=0
else
(( count++ ))
if [[ ${props[i]%%=*} == 'Names' ]]; then
names=${props[i]#*=}
fi
done
if (( j == ${#conditions[*]} )); then
echo " ${units[i]}"
fi
done
if (( count == n )) && [[ -n $names ]]; then
echo $names
fi
}
__get_all_units () { { __systemctl $1 list-unit-files "$2*"; __systemctl $1 list-units --all "$2*"; } \
@ -67,26 +57,47 @@ __get_non_template_units() { { __systemctl $1 list-unit-files "$2*"; __systemctl
| { while read -r a b; do [[ $a =~ @\. ]] || echo " $a"; done; }; }
__get_template_names () { __systemctl $1 list-unit-files "$2*" \
| { while read -r a b; do [[ $a =~ @\. ]] && echo " ${a%%@.*}@"; done; }; }
__get_active_units () { __systemctl $1 list-units "$2*" \
| { while read -r a b; do echo " $a"; done; }; }
__get_not_masked_unit_files() {
# filter out masked, not-found, or template units.
__systemctl $1 list-unit-files --state enabled,enabled-runtime,linked,linked-runtime,static,indirect,disabled,generated,transient "$2*" | \
{ while read -r a b; do [[ $a =~ @\. ]] || echo " $a"; done; }
}
__get_startable_units () {
# find startable inactive units
__filter_units_by_properties $1 ActiveState,CanStart inactive,yes $(
{ __systemctl $1 list-unit-files --state enabled,enabled-runtime,linked,linked-runtime,static,indirect,disabled,generated,transient "$2*" | \
{ while read -r a b; do [[ $a =~ @\. ]] || echo " $a"; done; }
__systemctl $1 list-units --state inactive,failed "$2*" | \
__filter_units_by_properties $1 ActiveState=inactive,CanStart=yes $(
{ __get_not_masked_unit_files $1 $2
# get inactive template units
__systemctl $1 list-units --state inactive,failed "$2*" | \
{ while read -r a b c; do [[ $b == "loaded" ]] && echo " $a"; done; }
} | sort -u )
} | sort -u )
}
__get_restartable_units () {
# filter out masked and not-found
__filter_units_by_property $1 CanStart yes $(
__systemctl $1 list-unit-files --state enabled,disabled,static "$2*" | \
{ while read -r a b; do [[ $a =~ @\. ]] || echo " $a"; done; }
__systemctl $1 list-units "$2*" | \
{ while read -r a b; do echo " $a"; done; } )
__filter_units_by_properties $1 CanStart=yes $(
{ __get_not_masked_unit_files $1 $2
__get_active_units $1 $2
} | sort -u )
}
__get_stoppable_units () {
# filter out masked and not-found
__filter_units_by_properties $1 ActiveState=active,CanStop=yes $(
{ __get_not_masked_unit_files $1 $2
__get_active_units $1 $2
} | sort -u )
}
__get_reloadable_units () {
# filter out masked and not-found
__filter_units_by_properties $1 ActiveState=active,CanReload=yes $(
{ __get_not_masked_unit_files $1 $2
__get_active_units $1 $2
} | sort -u )
}
__get_failed_units () { __systemctl $1 list-units "$2*" \
| { while read -r a b c d; do [[ $c == "failed" ]] && echo " $a"; done; }; }
__get_enabled_units () { __systemctl $1 list-unit-files "$2*" \
@ -243,17 +254,15 @@ _systemctl () {
compopt -o filenames
elif __contains_word "$verb" ${VERBS[STOPPABLE_UNITS]}; then
comps=$( __filter_units_by_property $mode CanStop yes \
$( __get_active_units $mode "$cur" ) )
comps=$( __get_stoppable_units $mode "$cur" )
compopt -o filenames
elif __contains_word "$verb" ${VERBS[RELOADABLE_UNITS]}; then
comps=$( __filter_units_by_property $mode CanReload yes \
$( __get_active_units $mode "$cur" ) )
comps=$( __get_reloadable_units $mode "$cur" )
compopt -o filenames
elif __contains_word "$verb" ${VERBS[ISOLATABLE_UNITS]}; then
comps=$( __filter_units_by_property $mode AllowIsolate yes \
comps=$( __filter_units_by_properties $mode AllowIsolate=yes \
$( __get_all_units $mode "$cur" ) )
compopt -o filenames