prosody
e1ca0d1b5467
core/modulemanager.lua

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core/modulemanager.lua @ 10138:e1ca0d1b5467

prosodyctl: Added the 'write_rockspec' function
author João Duarte <jvsDuarte08@gmail.com>
date Tue, 16 Jul 2019 10:08:12 -0700
parent 9867:984f27e4b8a3
child 10250:1006739de449
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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841d61be198f Remove version number from copyright headers
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diff changeset
1 -- Prosody IM
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b7049746bd29 Update copyright headers for 2010
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2 -- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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cccd610a0ef9 Insert copyright/license headers
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7 --
cccd610a0ef9 Insert copyright/license headers
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8
438
193f9dd64f17 Bumper commit for the new modulemanager API \o/ Updates all the modules, though some more changes may be in store.
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parents: 400
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9 local logger = require "util.logger";
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ec03f6968fa8 Added function add_feature to modules API (for adding disco features)
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10 local log = logger.init("modulemanager");
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11 local config = require "core.configmanager";
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12 local pluginloader = require "util.pluginloader";
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13 local set = require "util.set";
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14
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15 local new_multitable = require "util.multitable".new;
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16 local api = require "core.moduleapi"; -- Module API container
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17
1247
4721e4124692 modulemanager: module:hook now allows global modules to hook events on the prosody.events object
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18 local prosody = prosody;
8717
9ddd0fbbe53a core: Use prosody.hosts instead of _G.hosts for consistency
Kim Alvefur <zash@zash.se>
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19 local hosts = prosody.hosts;
747
40837f3422ab modulemanager: Add get_host_type() API method, and fix up call_module_method to work properly
Matthew Wild <mwild1@gmail.com>
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20
9562
acf74ad0b795 Many things: switch from hacky multi-arg xpcall implementations to a standard util.xpcall
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21 local xpcall = require "util.xpcall".xpcall;
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732314eb3258 modulemanager: Fix issues introduced in previous commit acf74ad0b795 [thanks luacheck, scansion]
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22 local debug_traceback = debug.traceback;
5021
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23 local setmetatable, rawget = setmetatable, rawget;
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24 local ipairs, pairs, type, t_insert = ipairs, pairs, type, table.insert;
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25
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26 local autoload_modules = {prosody.platform, "presence", "message", "iq", "offline", "c2s", "s2s", "s2s_auth_certs"};
6034
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27 local component_inheritable_modules = {"tls", "saslauth", "dialback", "iq", "s2s"};
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e19cb945c25b modulemanager: Small code improvement, move autoloaded modules list to the top of the file
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28
467
66f145f5c932 Update Makefile to now pass config paths to prosody. Update prosody, modulemanager and connectionlisteners to obey these paths.
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29 -- We need this to let modules access the real global namespace
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30 local _G = _G;
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31
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32 local _ENV = nil;
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33 -- luacheck: std none
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34
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35 local load_modules_for_host, load, unload, reload, get_module, get_items;
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36 local get_modules, is_loaded, module_has_method, call_module_method;
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37
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d46e9ad4fe8a modulemanager: Cleanup some unused variables, imports, whitespace and add a comment.
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38 -- [host] = { [module] = module_env }
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39 local modulemap = { ["*"] = {} };
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40
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41 -- Get the list of modules to be loaded on a host
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42 local function get_modules_for_host(host)
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43 local component = config.get(host, "component_module");
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44
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45 local global_modules_enabled = config.get("*", "modules_enabled");
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46 local global_modules_disabled = config.get("*", "modules_disabled");
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47 local host_modules_enabled = config.get(host, "modules_enabled");
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48 local host_modules_disabled = config.get(host, "modules_disabled");
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49
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50 if host_modules_enabled == global_modules_enabled then host_modules_enabled = nil; end
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51 if host_modules_disabled == global_modules_disabled then host_modules_disabled = nil; end
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52
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53 local global_modules = set.new(autoload_modules) + set.new(global_modules_enabled) - set.new(global_modules_disabled);
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54 if component then
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55 global_modules = set.intersection(set.new(component_inheritable_modules), global_modules);
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56 end
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57 local modules = (global_modules + set.new(host_modules_enabled)) - set.new(host_modules_disabled);
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58
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59 -- COMPAT w/ pre 0.8
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60 if modules:contains("console") then
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61 log("error", "The mod_console plugin has been renamed to mod_admin_telnet. Please update your config.");
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62 modules:remove("console");
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63 modules:add("admin_telnet");
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64 end
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65
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66 return modules, component;
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67 end
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68
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69 -- Load modules when a host is activated
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70 function load_modules_for_host(host)
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71 local modules, component_module = get_modules_for_host(host);
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72
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73 -- Ensure component module is loaded first
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74 if component_module then
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75 load(host, component_module);
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76 end
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parents: 3588
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77 for module in modules do
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78 load(host, module);
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79 end
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80 end
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81 prosody.events.add_handler("host-activated", load_modules_for_host);
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82 prosody.events.add_handler("host-deactivated", function (host)
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83 modulemap[host] = nil;
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84 end);
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85
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parents: 4531
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86 --- Private helpers ---
438
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parents: 400
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87
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parents: 4531
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88 local function do_unload_module(host, name)
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89 local mod = get_module(host, name);
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90 if not mod then return nil, "module-not-loaded"; end
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91
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92 if module_has_method(mod, "unload") then
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93 local ok, err = call_module_method(mod, "unload");
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94 if (not ok) and err then
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95 log("warn", "Non-fatal error unloading module '%s' on '%s': %s", name, host, err);
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96 end
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97 end
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98
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99 for object, event, handler in mod.module.event_handlers:iter(nil, nil, nil) do
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100 object.remove_handler(event, handler);
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101 end
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102
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103 if mod.module.items then -- remove items
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104 local events = (host == "*" and prosody.events) or hosts[host].events;
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105 for key,t in pairs(mod.module.items) do
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106 for i = #t,1,-1 do
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107 local value = t[i];
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108 t[i] = nil;
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109 events.fire_event("item-removed/"..key, {source = mod.module, item = value});
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110 end
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111 end
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112 end
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113 mod.module.loaded = false;
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114 modulemap[host][name] = nil;
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115 return true;
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116 end
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117
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118 local function do_load_module(host, module_name, state)
4532
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
119 if not (host and module_name) then
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
120 return nil, "insufficient-parameters";
4638
352cd61e2682 modulemanager: Allow loading a module onto "*" (part-fixes #228)
Matthew Wild <mwild1@gmail.com>
parents: 4606
diff changeset
121 elseif not hosts[host] and host ~= "*"then
4532
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
122 return nil, "unknown-host";
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
123 end
5776
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5411
diff changeset
124
4532
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
125 if not modulemap[host] then
5123
7c5c86fa552e hostmanager, modulemanager: Ensure hosts[*].modules always exists.
Waqas Hussain <waqas20@gmail.com>
parents: 5021
diff changeset
126 modulemap[host] = hosts[host].modules;
4532
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
127 end
5776
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5411
diff changeset
128
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
129 if modulemap[host][module_name] then
7303
439d00063620 modulemanager: Silence log message about attempts to load already loaded modules for shared modules
Kim Alvefur <zash@zash.se>
parents: 7163
diff changeset
130 if not modulemap["*"][module_name] then
439d00063620 modulemanager: Silence log message about attempts to load already loaded modules for shared modules
Kim Alvefur <zash@zash.se>
parents: 7163
diff changeset
131 log("debug", "%s is already loaded for %s, so not loading again", module_name, host);
439d00063620 modulemanager: Silence log message about attempts to load already loaded modules for shared modules
Kim Alvefur <zash@zash.se>
parents: 7163
diff changeset
132 end
4532
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
133 return nil, "module-already-loaded";
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
134 elseif modulemap["*"][module_name] then
4642
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
135 local mod = modulemap["*"][module_name];
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
136 if module_has_method(mod, "add_host") then
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
137 local _log = logger.init(host..":"..module_name);
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
138 local host_module_api = setmetatable({
4896
27cda15104f2 modulemanager, moduleapi: Turn module.event_handlers into a multitable and track object->event->handler associations correctly (thanks Zash)
Matthew Wild <mwild1@gmail.com>
parents: 4893
diff changeset
139 host = host, event_handlers = new_multitable(), items = {};
6661
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Matthew Wild <mwild1@gmail.com>
parents: 6660
diff changeset
140 _log = _log, log = function (self, ...) return _log(...); end; --luacheck: ignore 212/self
4642
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
141 },{
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
142 __index = modulemap["*"][module_name].module;
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
143 });
4728
7c81b04a4fed modulemanager: Set module.environment before calling add_host, otherwise the module will get the parent's environment (thanks xnyhps and Maranda)
Matthew Wild <mwild1@gmail.com>
parents: 4665
diff changeset
144 local host_module = setmetatable({ module = host_module_api }, { __index = mod });
7c81b04a4fed modulemanager: Set module.environment before calling add_host, otherwise the module will get the parent's environment (thanks xnyhps and Maranda)
Matthew Wild <mwild1@gmail.com>
parents: 4665
diff changeset
145 host_module_api.environment = host_module;
4776
dbe9d75c0452 modulemanager: Fixes to handle circular dependencies in module:depends()
Matthew Wild <mwild1@gmail.com>
parents: 4746
diff changeset
146 modulemap[host][module_name] = host_module;
4642
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
147 local ok, result, module_err = call_module_method(mod, "add_host", host_module_api);
4776
dbe9d75c0452 modulemanager: Fixes to handle circular dependencies in module:depends()
Matthew Wild <mwild1@gmail.com>
parents: 4746
diff changeset
148 if not ok or result == false then
dbe9d75c0452 modulemanager: Fixes to handle circular dependencies in module:depends()
Matthew Wild <mwild1@gmail.com>
parents: 4746
diff changeset
149 modulemap[host][module_name] = nil;
dbe9d75c0452 modulemanager: Fixes to handle circular dependencies in module:depends()
Matthew Wild <mwild1@gmail.com>
parents: 4746
diff changeset
150 return nil, ok and module_err or result;
dbe9d75c0452 modulemanager: Fixes to handle circular dependencies in module:depends()
Matthew Wild <mwild1@gmail.com>
parents: 4746
diff changeset
151 end
4642
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
152 return host_module;
c1602c07d14d modulemanager: Support for shared modules - function module.add_host(host_module) in a global module
Matthew Wild <mwild1@gmail.com>
parents: 4641
diff changeset
153 end
4532
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
154 return nil, "global-module-already-loaded";
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
155 end
5776
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5411
diff changeset
156
4532
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parents: 4531
diff changeset
157
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
158
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
159 local _log = logger.init(host..":"..module_name);
5021
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4896
diff changeset
160 local api_instance = setmetatable({ name = module_name, host = host,
6661
90e846e8a788 modulemanager: Add luacheck annotations
Matthew Wild <mwild1@gmail.com>
parents: 6660
diff changeset
161 _log = _log, log = function (self, ...) return _log(...); end, --luacheck: ignore 212/self
90e846e8a788 modulemanager: Add luacheck annotations
Matthew Wild <mwild1@gmail.com>
parents: 6660
diff changeset
162 event_handlers = new_multitable(), reloading = not not state,
90e846e8a788 modulemanager: Add luacheck annotations
Matthew Wild <mwild1@gmail.com>
parents: 6660
diff changeset
163 saved_state = state~=true and state or nil }
4532
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
164 , { __index = api });
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
165
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
166 local pluginenv = setmetatable({ module = api_instance }, { __index = _G });
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
167 api_instance.environment = pluginenv;
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5411
diff changeset
168
5021
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parents: 4896
diff changeset
169 local mod, err = pluginloader.load_code(module_name, nil, pluginenv);
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4896
diff changeset
170 if not mod then
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4896
diff changeset
171 log("error", "Unable to load module '%s': %s", module_name or "nil", err or "nil");
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Matthew Wild <mwild1@gmail.com>
parents: 9563
diff changeset
172 api_instance:set_status("error", "Failed to load (see log)");
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Florian Zeitz <florob@babelmonkeys.de>
parents: 4896
diff changeset
173 return nil, err;
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4896
diff changeset
174 end
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4896
diff changeset
175
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Florian Zeitz <florob@babelmonkeys.de>
parents: 4896
diff changeset
176 api_instance.path = err;
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4896
diff changeset
177
4776
dbe9d75c0452 modulemanager: Fixes to handle circular dependencies in module:depends()
Matthew Wild <mwild1@gmail.com>
parents: 4746
diff changeset
178 modulemap[host][module_name] = pluginenv;
9563
732314eb3258 modulemanager: Fix issues introduced in previous commit acf74ad0b795 [thanks luacheck, scansion]
Matthew Wild <mwild1@gmail.com>
parents: 9562
diff changeset
179 local ok, err = xpcall(mod, debug_traceback);
4532
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parents: 4531
diff changeset
180 if ok then
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
181 -- Call module's "load"
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
182 if module_has_method(pluginenv, "load") then
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
183 ok, err = call_module_method(pluginenv, "load");
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
184 if not ok then
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
185 log("warn", "Error loading module '%s' on '%s': %s", module_name, host, err or "nil");
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parents: 9563
diff changeset
186 api_instance:set_status("warn", "Error during load (see log)");
4532
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parents: 4531
diff changeset
187 end
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
188 end
5192
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Matthew Wild <mwild1@gmail.com>
parents: 5123
diff changeset
189 api_instance.reloading, api_instance.saved_state = nil, nil;
4532
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
190
4639
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Matthew Wild <mwild1@gmail.com>
parents: 4638
diff changeset
191 if api_instance.host == "*" then
98a29138dec8 modulemanager: Use api_instance rather than pluginenv.module (same thing)
Matthew Wild <mwild1@gmail.com>
parents: 4638
diff changeset
192 if not api_instance.global then -- COMPAT w/pre-0.9
4801
83cedf648b46 modulemanager: Hide deprecation warning for modules loaded on '*' directly (e.g. prosodyctl mod_<command>) (thanks Zash)
Matthew Wild <mwild1@gmail.com>
parents: 4776
diff changeset
193 if host ~= "*" then
83cedf648b46 modulemanager: Hide deprecation warning for modules loaded on '*' directly (e.g. prosodyctl mod_<command>) (thanks Zash)
Matthew Wild <mwild1@gmail.com>
parents: 4776
diff changeset
194 log("warn", "mod_%s: Setting module.host = '*' deprecated, call module:set_global() instead", module_name);
83cedf648b46 modulemanager: Hide deprecation warning for modules loaded on '*' directly (e.g. prosodyctl mod_<command>) (thanks Zash)
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parents: 4776
diff changeset
195 end
4606
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Matthew Wild <mwild1@gmail.com>
parents: 4604
diff changeset
196 api_instance:set_global();
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Matthew Wild <mwild1@gmail.com>
parents: 4604
diff changeset
197 end
4776
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Matthew Wild <mwild1@gmail.com>
parents: 4746
diff changeset
198 modulemap[host][module_name] = nil;
dbe9d75c0452 modulemanager: Fixes to handle circular dependencies in module:depends()
Matthew Wild <mwild1@gmail.com>
parents: 4746
diff changeset
199 modulemap[api_instance.host][module_name] = pluginenv;
4643
9008fc396fb1 modulemanager: When a shared module becomes global, ensure it still gets loaded onto the original target host
Matthew Wild <mwild1@gmail.com>
parents: 4642
diff changeset
200 if host ~= api_instance.host and module_has_method(pluginenv, "add_host") then
9008fc396fb1 modulemanager: When a shared module becomes global, ensure it still gets loaded onto the original target host
Matthew Wild <mwild1@gmail.com>
parents: 4642
diff changeset
201 -- Now load the module again onto the host it was originally being loaded on
4662
105423f77d46 modulemanager: Report errors that happen when loading a shared module onto its original host
Matthew Wild <mwild1@gmail.com>
parents: 4652
diff changeset
202 ok, err = do_load_module(host, module_name);
4643
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parents: 4642
diff changeset
203 end
4532
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parents: 4531
diff changeset
204 end
4606
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Matthew Wild <mwild1@gmail.com>
parents: 4604
diff changeset
205 end
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Matthew Wild <mwild1@gmail.com>
parents: 4604
diff changeset
206 if not ok then
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parents: 4746
diff changeset
207 modulemap[api_instance.host][module_name] = nil;
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
208 log("error", "Error initializing module '%s' on '%s': %s", module_name, host, err or "nil");
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Matthew Wild <mwild1@gmail.com>
parents: 9563
diff changeset
209 api_instance:set_status("warn", "Error during load (see log)");
984f27e4b8a3 modulemanager: Set module status on successful or failed module load
Matthew Wild <mwild1@gmail.com>
parents: 9563
diff changeset
210 else
984f27e4b8a3 modulemanager: Set module status on successful or failed module load
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parents: 9563
diff changeset
211 api_instance:set_status("core", "Loaded", false);
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Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
212 end
4537
d8d257c13562 modulemanager: load(): Return and use the correct module object
Matthew Wild <mwild1@gmail.com>
parents: 4535
diff changeset
213 return ok and pluginenv, err;
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parents: 4531
diff changeset
214 end
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
215
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
Matthew Wild <mwild1@gmail.com>
parents: 4531
diff changeset
216 local function do_reload_module(host, name)
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5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
Matthew Wild <mwild1@gmail.com>
parents: 733
diff changeset
217 local mod = get_module(host, name);
710
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
218 if not mod then return nil, "module-not-loaded"; end
56f6c115bc69 modulemanager: Added reload support, with callbacks for saving and restoring state
Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
219
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857034905016 modulemanager: Changed to use util.pluginloader
Waqas Hussain <waqas20@gmail.com>
parents: 1346
diff changeset
220 local _mod, err = pluginloader.load_code(name); -- checking for syntax errors
713
2afd6d9e21cd modulemanager: Check for syntax errors before reloading a module
Waqas Hussain <waqas20@gmail.com>
parents: 710
diff changeset
221 if not _mod then
1386
9132f16666e4 modulemanager: Fix copy/paste error, should be name instead of module_name
Matthew Wild <mwild1@gmail.com>
parents: 1378
diff changeset
222 log("error", "Unable to load module '%s': %s", name or "nil", err or "nil");
713
2afd6d9e21cd modulemanager: Check for syntax errors before reloading a module
Waqas Hussain <waqas20@gmail.com>
parents: 710
diff changeset
223 return nil, err;
2afd6d9e21cd modulemanager: Check for syntax errors before reloading a module
Waqas Hussain <waqas20@gmail.com>
parents: 710
diff changeset
224 end
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Waqas Hussain <waqas20@gmail.com>
parents: 710
diff changeset
225
710
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Waqas Hussain <waqas20@gmail.com>
parents: 709
diff changeset
226 local saved;
745
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diff changeset
227 if module_has_method(mod, "save") then
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diff changeset
228 local ok, ret, err = call_module_method(mod, "save");
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diff changeset
229 if ok then
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diff changeset
230 saved = ret;
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231 else
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Waqas Hussain <waqas20@gmail.com>
parents: 4381
diff changeset
232 log("warn", "Error saving module '%s:%s' state: %s", host, name, ret);
5377
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parents: 5192
diff changeset
233 if not config.get(host, "force_module_reload") then
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diff changeset
234 log("warn", "Aborting reload due to error, set force_module_reload to ignore this");
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diff changeset
235 return nil, "save-state-failed";
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diff changeset
236 else
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diff changeset
237 log("warn", "Continuing with reload (using the force)");
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diff changeset
238 end
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239 end
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diff changeset
240 end
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241
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parents: 5123
diff changeset
242 mod.module.reloading = true;
4532
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parents: 4531
diff changeset
243 do_unload_module(host, name);
5192
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parents: 5123
diff changeset
244 local ok, err = do_load_module(host, name, saved or true);
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diff changeset
245 if ok then
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diff changeset
246 mod = get_module(host, name);
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diff changeset
247 if module_has_method(mod, "restore") then
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parents: 733
diff changeset
248 local ok, err = call_module_method(mod, "restore", saved or {})
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diff changeset
249 if (not ok) and err then
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diff changeset
250 log("warn", "Error restoring module '%s' from '%s': %s", name, host, err);
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251 end
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diff changeset
252 end
4532
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diff changeset
253 end
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diff changeset
254 return ok and mod, err;
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diff changeset
255 end
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parents: 4531
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256
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diff changeset
257 --- Public API ---
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diff changeset
258
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diff changeset
259 -- Load a module and fire module-loaded event
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parents: 4531
diff changeset
260 function load(host, name)
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diff changeset
261 local mod, err = do_load_module(host, name);
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parents: 4531
diff changeset
262 if mod then
4804
607414b26c8c modulemanager: Pass the module's final host (e.g. '*') to the module-loaded event
Matthew Wild <mwild1@gmail.com>
parents: 4801
diff changeset
263 (hosts[mod.module.host] or prosody).events.fire_event("module-loaded", { module = name, host = mod.module.host });
4532
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diff changeset
264 end
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parents: 4531
diff changeset
265 return mod, err;
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diff changeset
266 end
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parents: 4531
diff changeset
267
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parents: 4531
diff changeset
268 -- Unload a module and fire module-unloaded
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diff changeset
269 function unload(host, name)
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parents: 4531
diff changeset
270 local ok, err = do_unload_module(host, name);
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diff changeset
271 if ok then
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diff changeset
272 (hosts[host] or prosody).events.fire_event("module-unloaded", { module = name, host = host });
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273 end
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diff changeset
274 return ok, err;
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275 end
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276
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diff changeset
277 function reload(host, name)
4853
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diff changeset
278 local mod, err = do_reload_module(host, name);
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diff changeset
279 if mod then
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diff changeset
280 modulemap[host][name].module.reloading = true;
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diff changeset
281 (hosts[host] or prosody).events.fire_event("module-reloaded", { module = name, host = host });
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diff changeset
282 mod.module.reloading = nil;
4532
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diff changeset
283 elseif not is_loaded(host, name) then
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diff changeset
284 (hosts[host] or prosody).events.fire_event("module-unloaded", { module = name, host = host });
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diff changeset
285 end
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diff changeset
286 return mod, err;
4532
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diff changeset
287 end
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diff changeset
288
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diff changeset
289 function get_module(host, name)
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diff changeset
290 return modulemap[host] and modulemap[host][name];
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diff changeset
291 end
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diff changeset
292
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diff changeset
293 function get_items(key, host)
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diff changeset
294 local result = {};
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diff changeset
295 local modules = modulemap[host];
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diff changeset
296 if not key or not host or not modules then return nil; end
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diff changeset
297
bea93cfd6c54 modulemanager: add function to retrieve module items from a specific host entity.
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diff changeset
298 for _, module in pairs(modules) do
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diff changeset
299 local mod = module.module;
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diff changeset
300 if mod.items and mod.items[key] then
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parents: 5377
diff changeset
301 for _, value in ipairs(mod.items[key]) do
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diff changeset
302 t_insert(result, value);
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parents: 5377
diff changeset
303 end
bea93cfd6c54 modulemanager: add function to retrieve module items from a specific host entity.
Marco Cirillo <maranda@lightwitch.org>
parents: 5377
diff changeset
304 end
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Marco Cirillo <maranda@lightwitch.org>
parents: 5377
diff changeset
305 end
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diff changeset
306
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parents: 5377
diff changeset
307 return result;
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parents: 5377
diff changeset
308 end
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parents: 5377
diff changeset
309
4532
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parents: 4531
diff changeset
310 function get_modules(host)
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parents: 4531
diff changeset
311 return modulemap[host];
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diff changeset
312 end
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parents: 4531
diff changeset
313
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parents: 4531
diff changeset
314 function is_loaded(host, name)
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parents: 4531
diff changeset
315 return modulemap[host] and modulemap[host][name] and true;
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parents: 4531
diff changeset
316 end
d8dbf569766c modulemanager: Some reorganisation. Only external change is (should be) that module-unloaded and module-loaded are no longer fired when reloading a module, the new event module-reloaded is fired instead.
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parents: 4531
diff changeset
317
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diff changeset
318 function module_has_method(module, method)
4641
2b3ee52fba32 modulemanager: Make module_has_method and module_call_method use rawget()
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parents: 4640
diff changeset
319 return type(rawget(module.module, method)) == "function";
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diff changeset
320 end
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parents: 733
diff changeset
321
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Matthew Wild <mwild1@gmail.com>
parents: 746
diff changeset
322 function call_module_method(module, method, ...)
4641
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parents: 4640
diff changeset
323 local f = rawget(module.module, method);
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parents: 4640
diff changeset
324 if type(f) == "function" then
9563
732314eb3258 modulemanager: Fix issues introduced in previous commit acf74ad0b795 [thanks luacheck, scansion]
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parents: 9562
diff changeset
325 return xpcall(f, debug_traceback, ...);
745
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diff changeset
326 else
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
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parents: 733
diff changeset
327 return false, "no-such-method";
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
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parents: 733
diff changeset
328 end
5a343599cd3e core.modulemanager: Some refactoring to make upcoming changes a little easier
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diff changeset
329 end
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parents: 733
diff changeset
330
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parents: 6661
diff changeset
331 return {
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parents: 8717
diff changeset
332 get_modules_for_host = get_modules_for_host;
6779
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Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
333 load_modules_for_host = load_modules_for_host;
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parents: 6661
diff changeset
334 load = load;
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Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
335 unload = unload;
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Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
336 reload = reload;
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Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
337 get_module = get_module;
6236668da30a core.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
338 get_items = get_items;
6236668da30a core.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
339 get_modules = get_modules;
6236668da30a core.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
340 is_loaded = is_loaded;
6236668da30a core.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
341 module_has_method = module_has_method;
6236668da30a core.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
342 call_module_method = call_module_method;
6236668da30a core.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6661
diff changeset
343 };