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Add __lxc_cgroup_state_object().

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Support cgroup state-object completion values for `lxc-cgroup`.

Signed-off-by: Edênis Freindorfer Azevedo <edenisfa@gmail.com>
This commit is contained in:
Edênis Freindorfer Azevedo 2021-09-03 10:54:24 -03:00
parent d36b3a3a9a
commit 83ca245532
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GPG Key ID: F7F1907D677FB8C9
1 changed files with 65 additions and 6 deletions
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71
config/bash/lxc.in
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@ -35,24 +35,31 @@ __lxc_names() {
done done
} }
__lxc_append_name() { __lxc_check_name_present() {
mapfile -t names < <(command lxc-ls -1) mapfile -t names < <(command lxc-ls -1)
local -r shortoptnamexp="^-[0-9A-Za-mo-z]*n[0-9A-Za-mo-z]*$" local -r shortoptnamexp="^-[0-9A-Za-mo-z]*n[0-9A-Za-mo-z]*$"
local parsed local parsed
mapfile -t names < <(command lxc-ls -1)
# If `--name` or `-n` are present, do not complete with container names. # If `--name` or `-n` are present, do not complete with container names.
for param in "${words[@]}"; do for param in "${words[@]}"; do
# Parse names from command line when space is escaped by backslash. # Parse names from command line when space is escaped by backslash.
parsed="${param//[\\\"\']}" parsed="${param//[\\\"\']}"
if [[ ${parsed} =~ ^--name(=(.*))?$ ]]; then if [[ ${parsed} =~ ^--name(=(.*))?$ ]]; then
return return 0
elif [[ ${parsed} =~ ${shortoptnamexp} ]]; then elif [[ ${parsed} =~ ${shortoptnamexp} ]]; then
return return 0
fi fi
for name in "${names[@]}"; do for name in "${names[@]}"; do
[[ "${parsed}" == "${name}" ]] && return [[ "${parsed}" == "${name}" ]] && return 0
done done
done done
__lxc_names return 1
}
__lxc_append_name() {
if ! __lxc_check_name_present; then
__lxc_names
fi
} }
__lxc_get_snapshots() { __lxc_get_snapshots() {
@ -383,6 +390,53 @@ _lxc_autostart() {
} && } &&
complete -F _lxc_autostart lxc-autostart complete -F _lxc_autostart lxc-autostart
__lxc_cgroup_v2() {
declare -a stateObjects
local -r path="${1}"
[[ ! -f "${path}/cgroup.controllers" ]] && return
for controller in $(<"${path}/cgroup.controllers"); do
for so in ${path}/${controller}.*; do
[[ ! -f "${so}" ]] && continue
stateObjects+=("${so##*/}")
done
done
command printf "%s" "${stateObjects[*]}"
}
__lxc_cgroup_v1() {
declare -a stateObjects
local -r path="${1}"
local prefix
for controller in "${path}"/*; do
[[ ! -d "${controller}" ]] && continue
prefix="${controller##*/}"
for so in "${controller}/${prefix}".*; do
[[ ! -f "${so}" ]] && continue
stateObjects+=("${so##*/}")
done
done
command printf "%s" "${stateObjects[*]}"
}
__lxc_cgroup_state_object() {
local -r name="${1}"
local -r cgroupPath="/sys/fs/cgroup"
# cgroup_v2 + user.slice
local -r userSlicePath="${cgroupPath}/user.slice"
if [[ -d "${userSlicePath}" ]]; then
COMPREPLY=( $( compgen -W "$(__lxc_cgroup_v2 "${userSlicePath}")" -- "${cur}" ) )
return
fi
# cgroup_v2 + lxc.payload
local -r lxcCgroup="${cgroupPath}/lxc.payload.${name}"
if [[ -d "${lxcCgroup}" ]]; then
COMPREPLY=( $( compgen -W "$(__lxc_cgroup_v2 "${lxcCgroup}")" -- "${cur}" ) )
return
fi
# cgroup_v1
COMPREPLY=( $( compgen -W "$(__lxc_cgroup_v1 "${cgroupPath}")" -- "${cur}" ) )
}
_lxc_cgroup() { _lxc_cgroup() {
local cur prev words cword split local cur prev words cword split
COMPREPLY=() COMPREPLY=()
@ -408,7 +462,12 @@ _lxc_cgroup() {
[[ ${COMPREPLY-} == *= ]] && compopt -o nospace [[ ${COMPREPLY-} == *= ]] && compopt -o nospace
return return
fi fi
__lxc_append_name
if __lxc_check_name_present; then
__lxc_cgroup_state_object
else
__lxc_append_name
fi
} && } &&
complete -F _lxc_cgroup lxc-cgroup complete -F _lxc_cgroup lxc-cgroup