1 files changed, 92 insertions, 0 deletions
diff --git a/shell-completion/bash/hostnamectl b/shell-completion/bash/hostnamectl
new file mode 100644
index 0000000..63edc08
--- /dev/null
+++ b/shell-completion/bash/hostnamectl
@@ -0,0 +1,92 @@
+# hostnamectl(1) completion                               -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# This file is part of systemd.
+#
+# Copyright © 2010 Ran Benita
+#
+# 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 <https://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 --full --no-legend --no-pager 2>/dev/null |
+        { while read a b; do echo " $a"; done; };
+}
+
+_hostnamectl() {
+    local i verb comps
+    local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
+    local -A OPTS=(
+        [STANDALONE]='-h --help --version --transient --static --pretty --no-ask-password'
+        [ARG]='-H --host -M --machine --json'
+    )
+
+    if __contains_word "$prev" ${OPTS[ARG]}; then
+        case $prev in
+            --host|-H)
+                comps=$(compgen -A hostname)
+                ;;
+            --machine|-M)
+                comps=$( __get_machines )
+                ;;
+            --json)
+                comps=$( hostnamectl --json=help 2>/dev/null )
+                ;;
+            *)
+                return 0
+                ;;
+        esac
+        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+        return 0
+    fi
+
+    if [[ $cur = -* ]]; then
+        COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
+        return 0
+    fi
+
+    local -A VERBS=(
+        [STANDALONE]='status'
+        [ICONS]='icon-name'
+        [NAME]='hostname deployment location'
+        [CHASSIS]='chassis'
+    )
+
+    for ((i=0; i < COMP_CWORD; i++)); do
+        if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]}; then
+            verb=${COMP_WORDS[i]}
+            break
+        fi
+    done
+
+    if [[ -z ${verb-} ]]; then
+        comps=${VERBS[*]}
+    elif __contains_word "$verb" ${VERBS[CHASSIS]}; then
+        comps='desktop laptop convertible server tablet handset watch embedded vm container'
+    elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[ICONS]} ${VERBS[NAME]}; then
+        comps=''
+    fi
+
+    COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+    return 0
+}
+
+complete -F _hostnamectl hostnamectl