bash-completion: add completion for portablectl

2 files changed, 115 insertions, 1 deletions

diff --git a/shell-completion/bash/meson.build b/shell-completion/bash/meson.build
index 48e671579..460a83151 100644
--- a/shell-completion/bash/meson.build
+++ b/shell-completion/bash/meson.build
@@ -42,8 +42,9 @@ if bashcompletiondir != 'no'
 #                  ['loginctl',            'ENABLE_LOGIND'],
 #                  ['machinectl',          'ENABLE_MACHINED'],
 #                  ['networkctl',          'ENABLE_NETWORKD'],
-#                  ['systemd-resolve',     'ENABLE_RESOLVE'],
+#                  ['portablectl',         'ENABLE_PORTABLED'],
 #                  ['resolvectl',          'ENABLE_RESOLVE'],
+#                  ['systemd-resolve',     'ENABLE_RESOLVE'],
 #                  ['timedatectl',         'ENABLE_TIMEDATED'],
 #else
         items = [['loginctl',            ''],
diff --git a/shell-completion/bash/portablectl b/shell-completion/bash/portablectl
new file mode 100644
index 000000000..4a72dd7d5
--- /dev/null
+++ b/shell-completion/bash/portablectl
@@ -0,0 +1,113 @@
+# portablectl(1) completion                             -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# This file is part of elogind.
+#
+# Copyright 2018 Yu Watanabe
+#
+# elogind 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.
+#
+# elogind 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 elogind; 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 2>/dev/null |
+                { while read a b; do echo " $a"; done; };
+}
+
+_portablectl() {
+        local i n comps verb
+        local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
+        local -A OPTS=(
+                [STANDALONE]='-q --quiet --runtime --no-reload --cat --no-pager --no-legend
+                              --no-ask-password -h --help --version'
+                [ARG]='-p --profile --copy -H --host -M --machine'
+        )
+
+        local -A VERBS=(
+                [STANDALONE]='list'
+                [IMAGE]='attach detach inspect is-attached set-limit'
+                [IMAGES]='remove'
+                [IMAGE_WITH_BOOL]='read-only'
+        )
+
+        if __contains_word "$prev" ${OPTS[ARG]}; then
+                case $prev in
+                        --profile|-p)
+                                comps="default nonetwork strict trusted"
+                                ;;
+                        --copy)
+                                comps="copy symlink auto"
+                                ;;
+                        --host|-H)
+                                comps=$(compgen -A hostname)
+                                ;;
+                        --machine|-M)
+                                comps=$( __get_machines )
+                                ;;
+                esac
+                COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+                return 0
+        fi
+
+        if [[ "$cur" = -* ]]; then
+                COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
+                return 0
+        fi
+
+        for ((i=0; i < COMP_CWORD; i++)); do
+                if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
+                 ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
+                        verb=${COMP_WORDS[i]}
+                        break
+                fi
+        done
+
+        n=$(($COMP_CWORD - $i))
+
+        if [[ -z $verb ]]; then
+                comps=${VERBS[*]}
+        elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
+                comps=''
+        elif __contains_word "$verb" ${VERBS[IMAGE]}; then
+                if [[ $n == 1 ]]; then
+                        comps=$( compgen -A file -- "$cur" )
+                        compopt -o filenames
+                else
+                        comps=''
+                fi
+        elif __contains_word "$verb" ${VERBS[IMAGES]}; then
+                comps=$( compgen -A file -- "$cur" )
+                compopt -o filenames
+        elif __contains_word "$verb" ${VERBS[IMAGE_WITH_BOOL]}; then
+                if [[ $n == 1 ]]; then
+                        comps=$( compgen -A file -- "$cur" )
+                        compopt -o filenames
+                elif [[ $n == 2 ]]; then
+                        comps='yes no'
+                else
+                        comps=''
+                fi
+        fi
+
+        COMPREPLY=( $(compgen -o filenames -W '$comps' -- "$cur") )
+        return 0
+}
+
+complete -F _portablectl portablectl