machinectl: add bash completion

[elogind.git] / shell-completion / bash / machinectl

diff --git a/shell-completion/bash/machinectl b/shell-completion/bash/machinectl
new file mode 100644 (file)
index 0000000..3789492
--- /dev/null
+++ b/shell-completion/bash/machinectl
@@ -0,0 +1,97 @@
+# machinectl(1) completion                      -*- shell-script -*-
+#
+# This file is part of systemd.
+#
+# Copyright 2014 Thomas H.P. Andersen
+#
+# systemd is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation; either version 2.1 of the License, or
+# (at your option) any later version.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
+__contains_word() {
+        local w word=$1; shift
+        for w in "$@"; do
+                [[ $w = "$word" ]] && return
+        done
+}
+
+__get_machines() {
+        local a b
+        machinectl list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
+}
+
+_machinectl() {
+        local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
+        local i verb comps
+
+        local -A OPTS=(
+               [STANDALONE]='--all -a --full --help -h --no-ask-password --no-legend --no-pager --version'
+                      [ARG]='--host -H --kill-who -M --machine --property -p --signal -s'
+        )
+
+        local -A VERBS=(
+               [STANDALONE]='list'
+                 [MACHINES]='status show terminate kill reboot login'
+        )
+
+        _init_completion || return
+
+        for ((i=0; i <= COMP_CWORD; i++)); do
+                if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
+                 ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
+                        verb=${COMP_WORDS[i]}
+                        break
+                fi
+        done
+
+        if __contains_word "$prev" ${OPTS[ARG]}; then
+                case $prev in
+                        --signal|-s)
+                                comps=$(compgen -A signal)
+                        ;;
+                        --kill-who)
+                                comps='all leader'
+                        ;;
+                        --host|-H)
+                                comps=$(compgen -A hostname)
+                        ;;
+                        --machine|-M)
+                                comps=$( __get_machines )
+                        ;;
+                        --property|-p)
+                                comps=''
+                        ;;
+                esac
+                COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+                return 0
+        fi
+
+        if [[ "$cur" = -* ]]; then
+                COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
+                return 0
+        fi
+
+        if [[ -z $verb ]]; then
+                comps=${VERBS[*]}
+
+        elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
+                comps=''
+
+        elif __contains_word "$verb" ${VERBS[MACHINES]}; then
+                comps=$( __get_machines )
+        fi
+
+        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+        return 0
+}
+
+complete -F _machinectl machinectl