[systemd-devel] [PATCH 1/2] machinectl: add bash completion
Thomas H.P. Andersen
phomes at gmail.com
Tue Feb 18 12:09:05 PST 2014
From: Thomas Hindoe Paaboel Andersen <phomes at gmail.com>
---
Makefile.am | 3 ++
man/machinectl.xml | 8 ++++
shell-completion/bash/machinectl | 97 ++++++++++++++++++++++++++++++++++++++++
src/machine/machinectl.c | 14 +++++-
4 files changed, 120 insertions(+), 2 deletions(-)
create mode 100644 shell-completion/bash/machinectl
diff --git a/Makefile.am b/Makefile.am
index 18df645..83c70a6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -3951,6 +3951,9 @@ machinectl_LDADD = \
rootbin_PROGRAMS += \
machinectl
+dist_bashcompletion_DATA += \
+ shell-completion/bash/machinectl
+
test_machine_tables_SOURCES = \
src/machine/test-machine-tables.c
diff --git a/man/machinectl.xml b/man/machinectl.xml
index ca4d52b..9eb45dc 100644
--- a/man/machinectl.xml
+++ b/man/machinectl.xml
@@ -95,6 +95,14 @@
</varlistentry>
<varlistentry>
+ <term><option>--no-legend</option></term>
+
+ <listitem><para>Do not print the legend,
+ i.e. the column headers and the
+ footer.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><option>--no-ask-password</option></term>
<listitem><para>Do not query the user
diff --git a/shell-completion/bash/machinectl b/shell-completion/bash/machinectl
new file mode 100644
index 0000000..3789492
--- /dev/null
+++ b/shell-completion/bash/machinectl
@@ -0,0 +1,97 @@
+# machinectl(1) completion -*- shell-script -*-
+#
+# This file is part of systemd.
+#
+# Copyright 2014 Thomas H.P. Andersen
+#
+# 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_machines() {
+ local a b
+ machinectl list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
+}
+
+_machinectl() {
+ local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
+ local i verb comps
+
+ local -A OPTS=(
+ [STANDALONE]='--all -a --full --help -h --no-ask-password --no-legend --no-pager --version'
+ [ARG]='--host -H --kill-who -M --machine --property -p --signal -s'
+ )
+
+ local -A VERBS=(
+ [STANDALONE]='list'
+ [MACHINES]='status show terminate kill reboot login'
+ )
+
+ _init_completion || return
+
+ for ((i=0; i <= COMP_CWORD; i++)); do
+ if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
+ ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
+ verb=${COMP_WORDS[i]}
+ break
+ fi
+ done
+
+ if __contains_word "$prev" ${OPTS[ARG]}; then
+ case $prev in
+ --signal|-s)
+ comps=$(compgen -A signal)
+ ;;
+ --kill-who)
+ comps='all leader'
+ ;;
+ --host|-H)
+ comps=$(compgen -A hostname)
+ ;;
+ --machine|-M)
+ comps=$( __get_machines )
+ ;;
+ --property|-p)
+ comps=''
+ ;;
+ esac
+ COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+ return 0
+ fi
+
+ if [[ "$cur" = -* ]]; then
+ COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
+ return 0
+ fi
+
+ if [[ -z $verb ]]; then
+ comps=${VERBS[*]}
+
+ elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
+ comps=''
+
+ elif __contains_word "$verb" ${VERBS[MACHINES]}; then
+ comps=$( __get_machines )
+ fi
+
+ COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
+ return 0
+}
+
+complete -F _machinectl machinectl
diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c
index 3f4f8ac..912cffd 100644
--- a/src/machine/machinectl.c
+++ b/src/machine/machinectl.c
@@ -46,6 +46,7 @@ static char **arg_property = NULL;
static bool arg_all = false;
static bool arg_full = false;
static bool arg_no_pager = false;
+static bool arg_legend = true;
static const char *arg_kill_who = NULL;
static int arg_signal = SIGTERM;
static bool arg_ask_password = true;
@@ -84,7 +85,8 @@ static int list_machines(sd_bus *bus, char **args, unsigned n) {
return r;
}
- printf("%-32s %-9s %-16s\n", "MACHINE", "CONTAINER", "SERVICE");
+ if (arg_legend)
+ printf("%-32s %-9s %-16s\n", "MACHINE", "CONTAINER", "SERVICE");
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssso)");
if (r < 0)
@@ -102,7 +104,8 @@ static int list_machines(sd_bus *bus, char **args, unsigned n) {
if (r < 0)
return bus_log_parse_error(r);
- printf("\n%u machines listed.\n", k);
+ if (arg_legend)
+ printf("\n%u machines listed.\n", k);
return 0;
}
@@ -673,6 +676,7 @@ static int help(void) {
" -h --help Show this help\n"
" --version Show package version\n"
" --no-pager Do not pipe output into a pager\n"
+ " --no-legend Do not show the headers and footers\n"
" --no-ask-password Don't prompt for password\n"
" -H --host=[USER@]HOST Operate on remote host\n"
" -M --machine=CONTAINER Operate on local container\n"
@@ -699,6 +703,7 @@ static int parse_argv(int argc, char *argv[]) {
enum {
ARG_VERSION = 0x100,
ARG_NO_PAGER,
+ ARG_NO_LEGEND,
ARG_KILL_WHO,
ARG_NO_ASK_PASSWORD,
};
@@ -710,6 +715,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "all", no_argument, NULL, 'a' },
{ "full", no_argument, NULL, 'l' },
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
+ { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
{ "kill-who", required_argument, NULL, ARG_KILL_WHO },
{ "signal", required_argument, NULL, 's' },
{ "host", required_argument, NULL, 'H' },
@@ -758,6 +764,10 @@ static int parse_argv(int argc, char *argv[]) {
arg_no_pager = true;
break;
+ case ARG_NO_LEGEND:
+ arg_legend = false;
+ break;
+
case ARG_NO_ASK_PASSWORD:
arg_ask_password = false;
break;
--
1.8.5.3
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