aboutsummaryrefslogtreecommitdiffstats
path: root/prosodyctl
blob: e769ed5d1c35bd7e4a734438bef55d2e77d2fb82 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
#!/usr/bin/env lua
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

-- prosodyctl - command-line controller for Prosody XMPP server

-- Will be modified by configure script if run --
CFG_SOURCEDIR=CFG_SOURCEDIR or os.getenv("PROSODY_SRCDIR");
CFG_CONFIGDIR=CFG_CONFIGDIR or os.getenv("PROSODY_CFGDIR");
CFG_PLUGINDIR=CFG_PLUGINDIR or os.getenv("PROSODY_PLUGINDIR");
CFG_DATADIR=CFG_DATADIR or os.getenv("PROSODY_DATADIR");

-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

local function is_relative(path)
	local path_sep = package.config:sub(1,1);
	return ((path_sep == "/" and path:sub(1,1) ~= "/")
		or (path_sep == "\\" and (path:sub(1,1) ~= "/" and path:sub(2,3) ~= ":\\")))
end

-- Tell Lua where to find our libraries
if CFG_SOURCEDIR then
	local function filter_relative_paths(path)
		if is_relative(path) then return ""; end
	end
	local function sanitise_paths(paths)
		return (paths:gsub("[^;]+;?", filter_relative_paths):gsub(";;+", ";"));
	end
	package.path = sanitise_paths(CFG_SOURCEDIR.."/?.lua;"..package.path);
	package.cpath = sanitise_paths(CFG_SOURCEDIR.."/?.so;"..package.cpath);
end

-- Substitute ~ with path to home directory in data path
if CFG_DATADIR then
	if os.getenv("HOME") then
		CFG_DATADIR = CFG_DATADIR:gsub("^~", os.getenv("HOME"));
	end
end

-----------

local startup = require "util.startup";
startup.prosodyctl();

-----------

local configmanager = require "core.configmanager";
local modulemanager = require "core.modulemanager"
local prosodyctl = require "util.prosodyctl"
local socket = require "socket"
local dependencies = require "util.dependencies";
local lfs = dependencies.softreq "lfs";

-----------------------

local parse_args = require "util.argparse".parse;
local human_io = require "util.human.io";

local show_message, show_warning = prosodyctl.show_message, prosodyctl.show_warning;
local show_usage = prosodyctl.show_usage;
local read_password = human_io.read_password;
local call_luarocks = prosodyctl.call_luarocks;
local error_messages = prosodyctl.error_messages;

local jid_split = require "util.jid".prepped_split;

local prosodyctl_timeout = (configmanager.get("*", "prosodyctl_timeout") or 5) * 2;
-----------------------
local commands = {};
local command = table.remove(arg, 1);

local only_help = { short_params = { h = "help"; ["?"] = "help" } }

function commands.install(arg)
	local opts = parse_args(arg, only_help);
	if opts.help or not arg[1] then
		show_usage([[install]], [[Installs a prosody/luarocks plugin]]);
		return opts.help and 0 or 1;
	end
	-- TODO finalize config option name
	local server = opts.server or configmanager.get("*", "plugin_server");
	if not (arg[1]:match("^https://") or lfs.attributes(arg[1]) or server) then
		show_warning("There is no 'plugin_server' option in the configuration file");
		-- see https://prosody.im/doc/TODO documentation
		-- #1602
		return 1;
	end
	show_message("Installing %s in %s", arg[1], prosody.paths.installer);
	local ret = call_luarocks("install", arg[1], server);
	if ret == 0 and arg[1]:match("^mod_") then
		prosodyctl.show_module_configuration_help(arg[1]);
	end
	return ret;
end

function commands.remove(arg)
	local opts = parse_args(arg, only_help);
	if opts.help or not arg[1] then
		show_usage([[remove]], [[Removes a module installed in the working directory's plugins folder]]);
		return opts.help and 0 or 1;
	end
	show_message("Removing %s from %s", arg[1], prosody.paths.installer);
	local ret = call_luarocks("remove", arg[1]);
	return ret;
end

function commands.list(arg)
	local opts = parse_args(arg, only_help);
	if opts.help then
		show_usage([[list]], [[Shows installed rocks]]);
		return 0;
	end
	local server = opts.server or configmanager.get("*", "plugin_server");
	if opts.outdated then
		-- put this back for luarocks
		arg[1] = "--outdated";

		if not server then
			show_warning("There is no 'plugin_server' option in the configuration file, but this is needed for 'list --outdated' to work.");
			return 1;
		end
	end
	local ret = call_luarocks("list", arg[1], server);
	return ret;
end

function commands.adduser(arg)
	local opts = parse_args(arg, only_help);
	if opts.help or not arg[1] then
		show_usage([[adduser JID]], [[Create the specified user account in Prosody]]);
		return opts.help and 0 or 1;
	end
	local user, host = jid_split(arg[1]);
	if not user and host then
		show_message [[Failed to understand JID, please supply the JID you want to create]]
		show_usage [[adduser user@host]]
		return 1;
	end

	if not host then
		show_message [[Please specify a JID, including a host. e.g. alice@example.com]];
		return 1;
	end

	if not prosody.hosts[host] then
		show_warning("The host '%s' is not listed in the configuration file (or is not enabled).", host)
		show_warning("The user will not be able to log in until this is changed.");
		prosody.hosts[host] = startup.make_host(host); --luacheck: ignore 122
	end

	if prosodyctl.user_exists{ user = user, host = host } then
		show_message [[That user already exists]];
		return 1;
	end

	local password = read_password();
	if not password then return 1; end

	local ok, msg = prosodyctl.adduser { user = user, host = host, password = password };

	if ok then return 0; end

	show_message(error_messages[msg])
	return 1;
end

function commands.passwd(arg)
	local opts = parse_args(arg, only_help);
	if opts.help or not arg[1] then
		show_usage([[passwd JID]], [[Set the password for the specified user account in Prosody]]);
		return opts.help and 0 or 1;
	end
	local user, host = jid_split(arg[1]);
	if not user and host then
		show_message [[Failed to understand JID, please supply the JID you want to set the password for]]
		show_usage [[passwd user@host]]
		return 1;
	end

	if not host then
		show_message [[Please specify a JID, including a host. e.g. alice@example.com]];
		return 1;
	end

	if not prosody.hosts[host] then
		show_warning("The host '%s' is not listed in the configuration file (or is not enabled).", host)
		show_warning("The user will not be able to log in until this is changed.");
		prosody.hosts[host] = startup.make_host(host); --luacheck: ignore 122
	end

	if not prosodyctl.user_exists { user = user, host = host } then
		show_message [[That user does not exist, use prosodyctl adduser to create a new user]]
		return 1;
	end

	local password = read_password();
	if not password then return 1; end

	local ok, msg = prosodyctl.passwd { user = user, host = host, password = password };

	if ok then return 0; end

	show_message(error_messages[msg])
	return 1;
end

function commands.deluser(arg)
	local opts = parse_args(arg, only_help);
	if opts.help or not arg[1] then
		show_usage([[deluser JID]], [[Permanently remove the specified user account from Prosody]]);
		return opts.help and 0 or 1;
	end
	local user, host = jid_split(arg[1]);
	if not user and host then
		show_message [[Failed to understand JID, please supply the JID to the user account you want to delete]]
		show_usage [[deluser user@host]]
		return 1;
	end

	if not host then
		show_message [[Please specify a JID, including a host. e.g. alice@example.com]];
		return 1;
	end

	if not prosody.hosts[host] then
		show_warning("The host '%s' is not listed in the configuration file (or is not enabled).", host)
		prosody.hosts[host] = startup.make_host(host); --luacheck: ignore 122
	end

	if not prosodyctl.user_exists { user = user, host = host } then
		show_message [[That user does not exist on this server]]
		return 1;
	end

	local ok, msg = prosodyctl.deluser { user = user, host = host };

	if ok then return 0; end

	show_message(error_messages[msg])
	return 1;
end

local function has_init_system() --> which
	lfs = lfs or require"lfs";
	if lfs.attributes("/etc/systemd") then
		return "systemd";
	elseif lfs.attributes("/etc/init.d/prosody") then
		return "rc.d";
	end
end

local function service_command_warning(service_command)
	if prosody.installed and configmanager.get("*", "prosodyctl_service_warnings") ~= false then
		show_warning("WARNING: Use of prosodyctl start/stop/restart/reload is not recommended");
		show_warning("         if Prosody is managed by an init system - use that directly instead.");
		local init = has_init_system()
		if init == "systemd" then
			show_warning("         e.g. systemctl %s prosody", service_command);
		elseif init == "rc.d" then
			show_warning("         e.g. /etc/init.d/prosody %s", service_command);
		end
		show_warning("");
	end
end

function commands.start(arg)
	local opts = parse_args(arg, only_help);
	if opts.help then
		show_usage([[start]], [[Start Prosody]]);
		return 0;
	end
	service_command_warning("start");
	local ok, ret = prosodyctl.isrunning();
	if not ok then
		show_message(error_messages[ret]);
		return 1;
	end

	if ret then
		--luacheck: ignore 421/ret
		local ok, ret = prosodyctl.getpid();
		if not ok then
			show_message("Couldn't get running Prosody's PID");
			show_message(error_messages[ret]);
			return 1;
		end
		show_message("Prosody is already running with PID %s", ret or "(unknown)");
		return 1;
	end

	--luacheck: ignore 411/ret
	local lua;
	do
		local i = 0;
		repeat
			i = i - 1;
		until arg[i-1] == nil
		lua = arg[i];
	end
	local ok, ret = prosodyctl.start(prosody.paths.source, lua);
	if ok then
		local daemonize = configmanager.get("*", "daemonize");
		if daemonize == nil then
			daemonize = prosody.installed;
		end
		if daemonize then
			local i=1;
			while true do
				local ok, running = prosodyctl.isrunning();
				if ok and running then
					break;
				elseif i == 5 then
					show_message("Still waiting...");
				elseif i >= prosodyctl_timeout then
					show_message("Prosody is still not running. Please give it some time or check your log files for errors.");
					return 2;
				end
				socket.sleep(0.5);
				i = i + 1;
			end
			show_message("Started");
		end
		return 0;
	end

	show_message("Failed to start Prosody");
	show_message(error_messages[ret])
	return 1;
end

function commands.status(arg)
	local opts = parse_args(arg, only_help);
	if opts.help then
		show_usage([[status]], [[Reports the running status of Prosody]]);
		return 0;
	end

	local ok, ret = prosodyctl.isrunning();
	if not ok then
		show_message(error_messages[ret]);
		return 1;
	end

	if ret then
		--luacheck: ignore 421/ret
		local ok, ret = prosodyctl.getpid();
		if not ok then
			show_message("Couldn't get running Prosody's PID");
			show_message(error_messages[ret]);
			return 1;
		end
		show_message("Prosody is running with PID %s", ret or "(unknown)");
		return 0;
	else
		show_message("Prosody is not running");
		if not prosody.switched_user and prosody.current_uid ~= 0 then
			print("\nNote:")
			print(" You will also see this if prosodyctl is not running under");
			print(" the same user account as Prosody. Try running as root (e.g. ");
			print(" with 'sudo' in front) to gain access to Prosody's real status.");
		end
		return 2
	end
end

function commands.stop(arg)
	local opts = parse_args(arg, only_help);
	if opts.help then
		show_usage([[stop]], [[Stop a running Prosody server]]);
		return 0;
	end

	service_command_warning("stop");

	if not prosodyctl.isrunning() then
		show_message("Prosody is not running");
		return 1;
	end

	local ok, ret = prosodyctl.stop();
	if ok then
		local i=1;
		while true do
			local ok, running = prosodyctl.isrunning();
			if ok and not running then
				break;
			elseif i == 5 then
				show_message("Still waiting...");
			elseif i >= prosodyctl_timeout then
				show_message("Prosody is still running. Please give it some time or check your log files for errors.");
				return 2;
			end
			socket.sleep(0.5);
			i = i + 1;
		end
		show_message("Stopped");
		return 0;
	end

	show_message(error_messages[ret]);
	return 1;
end

function commands.restart(arg)
	local opts = parse_args(arg, only_help);
	if opts.help then
		show_usage([[restart]], [[Restart a running Prosody server]]);
		return 1;
	end

	service_command_warning("restart");

	commands.stop(arg);
	return commands.start(arg);
end

function commands.about(arg)
	local opts = parse_args(arg, only_help);
	if opts.help then
		show_usage([[about]], [[Show information about this Prosody installation]]);
		return 0;
	end

	local pwd = ".";
	local sorted_pairs = require "util.iterators".sorted_pairs;
	local hg = require"util.mercurial";
	local relpath = configmanager.resolve_relative_path;

	print("Prosody "..(prosody.version or "(unknown version)"));
	print("");
	print("# Prosody directories");
	print("Data directory:     "..relpath(pwd, prosody.paths.data));
	print("Config directory:   "..relpath(pwd, prosody.paths.config or "."));
	print("Source directory:   "..relpath(pwd, prosody.paths.source or "."));
	print("Plugin directories:")
	print("  "..(prosody.paths.plugins:gsub("([^;]+);?", function(path)
			path = configmanager.resolve_relative_path(pwd, path);
			local hgid, hgrepo = hg.check_id(path);
			if not hgid and hgrepo then
				return path.." - "..hgrepo .."!\n  ";
			end
			-- 010452cfaf53 is the first commit in the prosody-modules repository
			hgrepo = hgrepo == "010452cfaf53" and "prosody-modules";
			return path..(hgid and " - "..(hgrepo or "HG").." rev: "..hgid or "")
				.."\n  ";
		end)));
	print("");
	local have_pposix, pposix = pcall(require, "util.pposix");
	if have_pposix and pposix.uname then
		print("# Operating system");
		local uname, err = pposix.uname();
		print(uname and uname.sysname .. " " .. uname.release or "Unknown POSIX", err or "");
		print("");
	end
	print("# Lua environment");
	print("Lua version:             ", _G._VERSION);
	print("");
	print("Lua module search paths:");
	for path in package.path:gmatch("[^;]+") do
		print("  "..path);
	end
	print("");
	print("Lua C module search paths:");
	for path in package.cpath:gmatch("[^;]+") do
		print("  "..path);
	end
	print("");
	local luarocks_status = "Not installed"
	if pcall(require, "luarocks.loader") then
		luarocks_status = "Installed (2.x+)";
		if package.loaded["luarocks.cfg"] then
			luarocks_status = "Installed ("..(package.loaded["luarocks.cfg"].program_version or "2.x+")..")";
		end
	elseif pcall(require, "luarocks.require") then
		luarocks_status = "Installed (1.x)";
	end
	print("LuaRocks:        ", luarocks_status);
	print("");
	print("# Network");
	print("");
	print("Backend: "..require "net.server".get_backend());
	print("");
	print("# Lua module versions");
	local module_versions, longest_name = {}, 8;
	local library_versions = {};
	dependencies.softreq"ssl";
	dependencies.softreq"DBI";
	dependencies.softreq"readline";
	local friendly_names = {
		DBI = "LuaDBI";
		lfs = "LuaFileSystem";
		lunbound = "luaunbound";
		lxp = "LuaExpat";
		socket = "LuaSocket";
		ssl = "LuaSec";
	};
	local alternate_version_fields = {
		-- These diverge from the module._VERSION convention
		readline = "Version";
	}
	local lunbound = dependencies.softreq"lunbound";
	local lxp = dependencies.softreq"lxp";
	local hashes = dependencies.softreq"util.hashes";
	for name, module in pairs(package.loaded) do
		local version_field = alternate_version_fields[name] or "_VERSION";
		if type(module) == "table" and rawget(module, version_field)
			and name ~= "_G" and not name:match("%.") then
			name = friendly_names[name] or name;
			if #name > longest_name then
				longest_name = #name;
			end
			local mod_version = module[version_field];
			if tostring(mod_version):sub(1, #name+1) == name .. " " then
				mod_version = mod_version:sub(#name+2);
			end
			module_versions[name] = mod_version;
		end
	end
	if lunbound then
		if not module_versions["luaunbound"] then
			module_versions["luaunbound"] = "0.5 (?)";
		end
		library_versions["libunbound"] = lunbound._LIBVER;
	end
	if lxp then
		library_versions["libexpat"] = lxp._EXPAT_VERSION;
	end
	if hashes then
		library_versions["libcrypto"] = hashes._LIBCRYPTO_VERSION;
	end
	for name, version in sorted_pairs(module_versions) do
		print(name..":"..string.rep(" ", longest_name-#name), version);
	end
	print("");
	print("# library versions");
	if require "net.server".event_base then
		library_versions["libevent"] = require"luaevent".core.libevent_version();
	end
	for name, version in sorted_pairs(library_versions) do
		print(name..":"..string.rep(" ", longest_name-#name), version);
	end
	print("");
end

function commands.reload(arg)
	local opts = parse_args(arg, only_help);
	if opts.help then
		show_usage([[reload]], [[Reload Prosody's configuration and re-open log files]]);
		return 0;
	end

	service_command_warning("reload");

	if not prosodyctl.isrunning() then
		show_message("Prosody is not running");
		return 1;
	end

	local ok, ret = prosodyctl.reload();
	if ok then

		show_message("Prosody log files re-opened and config file reloaded. You may need to reload modules for some changes to take effect.");
		return 0;
	end

	show_message(error_messages[ret]);
	return 1;
end
-- ejabberdctl compatibility

local unpack = table.unpack or unpack; -- luacheck: ignore 113

function commands.register(arg)
	local user, host, password = unpack(arg);
	if (not (user and host)) or arg[1] == "--help" then
		if user ~= "--help" then
			if not user then
				show_message [[No username specified]]
			elseif not host then
				show_message [[Please specify which host you want to register the user on]];
			end
		end
		show_usage("register USER HOST [PASSWORD]", "Register a user on the server, with the given password");
		return 1;
	end
	if not password then
		password = read_password();
		if not password then
			show_message [[Unable to register user with no password]];
			return 1;
		end
	end

	local ok, msg = prosodyctl.adduser { user = user, host = host, password = password };

	if ok then return 0; end

	show_message(error_messages[msg])
	return 1;
end

function commands.unregister(arg)
	local user, host = unpack(arg);
	if (not (user and host)) or arg[1] == "--help" then
		if user ~= "--help" then
			if not user then
				show_message [[No username specified]]
			elseif not host then
				show_message [[Please specify which host you want to unregister the user from]];
			end
		end
		show_usage("unregister USER HOST [PASSWORD]", "Permanently remove a user account from the server");
		return 1;
	end

	local ok, msg = prosodyctl.deluser { user = user, host = host };

	if ok then return 0; end

	show_message(error_messages[msg])
	return 1;
end

---------------------

local async = require "util.async";
local server = require "net.server";
local watchers = {
	error = function (_, err)
		error(err);
	end;
	waiting = function ()
		server.loop();
	end;
};
local command_runner = async.runner(function ()
	if command and command:match("^mod_") then -- Is a command in a module
		local module_name = command:match("^mod_(.+)");
		do
			local ret, err = modulemanager.load("*", module_name);
			if not ret then
				show_message("Failed to load module '"..module_name.."': "..err);
				os.exit(1);
			end
		end

		local module = modulemanager.get_module("*", module_name);
		if not module then
			show_message("Failed to load module '"..module_name.."': Unknown error");
			os.exit(1);
		end

		if not modulemanager.module_has_method(module, "command") then
			show_message("Fail: mod_"..module_name.." does not support any commands");
			os.exit(1);
		end

		local ok, ret = modulemanager.call_module_method(module, "command", arg);
		if ok then
			if type(ret) == "number" then
				os.exit(ret, true);
			elseif type(ret) == "string" then
				show_message(ret);
			end
			os.exit(0, true); -- :)
		else
			show_message("Failed to execute command: %s", error_messages[ret]);
			os.exit(1); -- :(
		end
	end

	if command and not commands[command] then
		local ok, command_module = pcall(require, "util.prosodyctl."..command);
		if ok and command_module[command] then
			commands[command] = command_module[command];
		end
	end

	if not commands[command] then -- Show help for all commands
		function show_usage(usage, desc)
			print(string.format(" %-11s    %s", usage, desc));
		end

		print("prosodyctl - Manage a Prosody server");
		print("");
		print("Usage: "..arg[0].." COMMAND [OPTIONS]");
		print("");
		print("Where COMMAND may be one of:");

		local hidden_commands = require "util.set".new{ "register", "unregister" };
		local commands_order = {
			"Process management:",
				"start"; "stop"; "restart"; "reload"; "status";
				"shell",
			"User management:",
				"adduser"; "passwd"; "deluser";
			"Plugin management:",
				"install"; "remove"; "list";
			"Informative:",
				"about",
				"check",
			"Other:",
				"cert",
		};
		-- These live in util.prosodyctl.$command so we have their short help here.
		local external_commands = {
			cert = "Certificate management commands",
			check = "Perform basic checks on your Prosody installation",
			shell = "Interact with a running Prosody",
		}

		local done = {};

		if prosody.installed and has_init_system() then
			-- Hide start, stop, restart
			done[table.remove(commands_order, 2)] = true;
			done[table.remove(commands_order, 2)] = true;
			done[table.remove(commands_order, 2)] = true;
		end

		for _, command_name in ipairs(commands_order) do
			local command_func = commands[command_name];
			if command_func then
				command_func{ "--help" };
				done[command_name] = true;
			elseif external_commands[command_name] then
				show_usage(command_name, external_commands[command_name]);
				done[command_name] = true;
			else
				print""
				print(command_name);
			end
		end

		for command_name, command_func in pairs(commands) do
			if not done[command_name] and not hidden_commands:contains(command_name) then
				command_func{ "--help" };
				done[command_name] = true;
			end
		end


		os.exit(0, true);
	end

	os.exit(commands[command](arg), true);
end, watchers);

command_runner:run(true);