add bash completion for systemd-analyze

Makefile.am

@@ -331,6 +331,7 @@ systemd_analyze_LDADD = \
 dist_bashcompletion_DATA = \
 	shell-completion/bash/journalctl \
 	shell-completion/bash/systemctl \
+	shell-completion/bash/systemd-analyze \
 	shell-completion/bash/udevadm
 
 dist_tmpfiles_DATA = \

shell-completion/bash/systemd-analyze

@@ -0,0 +1,70 @@
+# systemd-analyze(1) completion                      -*- shell-script -*-
+#
+# This file is part of systemd.
+#
+# Copyright 2010 Ran Benita
+# Copyright 2013 Harald Hoyer
+#
+# 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 word=$1; shift
+        for w in $*; do [[ $w = $word ]] && return 0; done
+        return 1
+}
+
+_systemd_analyze() {
+        local i verb comps
+        local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
+        local OPTS='--help --version --system --user --from-pattern --to-pattern --order --require'
+
+        local -A VERBS=(
+                [NO_OPTION]='time blame plot'
+                [DOT]='dot'
+        )
+
+        _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 [[ -z $verb  && $cur = -* ]]; then
+                COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
+                return 0
+        fi
+
+        if [[ -z $verb ]]; then
+                comps=${VERBS[*]}
+
+        elif __contains_word "$verb" ${VERBS[NO_OPTION]}; then
+                if [[ $cur = -* ]]; then
+                        comps='--help --version --system --user'
+                fi
+
+        elif __contains_word "$verb" ${VERBS[DOT]}; then
+                if [[ $cur = -* ]]; then
+                        comps='--help --version --system --user --from-pattern --to-pattern --order --require'
+                fi
+        fi
+
+        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+        return 0
+}
+
+complete -F _systemd_analyze systemd-analyze