1 files changed, 96 insertions, 0 deletions
diff --git a/shell-completion/bash/bootctl b/shell-completion/bash/bootctl
new file mode 100644
index 0000000..64bff4f
--- /dev/null
+++ b/shell-completion/bash/bootctl
@@ -0,0 +1,96 @@
+# bootctl(1) completion                               -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# This file is part of systemd.
+#
+#
+# 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_entry_ids() {
+        bootctl --no-pager list 2>/dev/null | { while read -r a b; do [[ $a == 'id:' ]] && echo " $b"; done }
+}
+
+_bootctl() {
+        local i verb comps
+        local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
+        local -A OPTS=(
+                [STANDALONE]='-h --help --no-variables -p --print-path --version --no-pager'
+                       [ARG]='--path'
+        )
+
+        if __contains_word "$prev" ${OPTS[ARG]}; then
+                case $prev in
+                        --path)
+                                if [[ -z $cur ]]; then
+                                        comps=$(compgen -A directory -- "/" )
+                                else
+                                        comps=$(compgen -A directory -- "$cur" )
+                                fi
+                                compopt -o filenames
+                                ;;
+                esac
+                COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+                return 0
+        fi
+
+        if [[ "$cur" = -* ]]; then
+                COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
+                return 0
+        fi
+
+        local -A VERBS=(
+                [STANDALONE]='help install list remove status update'
+                [BOOTENTRY]='set-default set-oneshot'
+        )
+
+        for ((i=0; i < COMP_CWORD; i++)); do
+                if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]}; then
+                        verb=${COMP_WORDS[i]}
+                        break
+                fi
+        done
+
+        if [[ -z $verb ]]; then
+                comps=${VERBS[*]}
+        elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
+                comps=''
+        elif __contains_word "$verb" ${VERBS[BOOTENTRY]}; then
+                name=
+                for ((i++; i < COMP_CWORD; i++)); do
+                        if ! __contains_word "${COMP_WORDS[i]}" ${OPTS[*]} ${VERBS[*]} &&
+                           ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
+                                name=${COMP_WORDS[i]}
+                                break;
+                        fi
+                done
+
+                if [[ -z $name ]]; then
+                        comps=$( __get_entry_ids )
+                else
+                        comps=''
+                fi
+        fi
+
+        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+        return 0
+}
+
+complete -F _bootctl bootctl