1 files changed, 99 insertions, 0 deletions
diff --git a/shell-completion/bash/bootctl b/shell-completion/bash/bootctl
new file mode 100644
index 0000000..391fa67
--- /dev/null
+++ b/shell-completion/bash/bootctl
@@ -0,0 +1,99 @@
+# bootctl(1) completion                               -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# 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=${COMP_WORDS[COMP_CWORD-1]}
+    local -A OPTS=(
+        [STANDALONE]='-h --help -p --print-esp-path -x --print-boot-path --version --no-variables --no-pager --graceful'
+        [ARG]='--esp-path --boot-path'
+    )
+
+    if __contains_word "$prev" ${OPTS[ARG]}; then
+        case $prev in
+            --esp-path|--boot-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[*]}' -- "$cur") )
+        return 0
+    fi
+
+    local -A VERBS=(
+        # systemd-efi-options takes an argument, but it is free-form, so we cannot complete it
+        [STANDALONE]='help status install update remove is-installed random-seed systemd-efi-options list'
+        [BOOTENTRY]='set-default set-oneshot'
+        [BOOLEAN]='reboot-to-firmware'
+    )
+
+    for ((i=0; i < COMP_CWORD; i++)); do
+        if __contains_word "${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
+    elif __contains_word "$verb" ${VERBS[BOOLEAN]}; then
+        comps="yes no"
+    fi
+
+    COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+    return 0
+}
+
+complete -F _bootctl bootctl