Mercurial > prosody-modules

annotate mod_inotify_reload/mod_inotify_reload.lua @ 716:dac33b8f190b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_vjud: Depends on vcard lib from verse, so add that.
author Kim Alvefur <zash@zash.se>
date Wed, 20 Jun 2012 15:18:48 +0200
parents 3e6f43ab7e22
children ab988e98a9f9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
652
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 -- mod_inotify_reload
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 -- Reloads modules when their files change
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 -- Depends on linotify: https://github.com/hoelzro/linotify
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
4
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 module:set_global();
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 local inotify = require "inotify";
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8 local modulemanager = require "core.modulemanager";
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
10 local inh = inotify.init();
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 local watches = {};
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 local watch_ids = {};
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 -- Fake socket object around inotify
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 local inh_conn = {
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17 getfd = function () return inh:fileno(); end;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 dirty = function (self) return false; end;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 settimeout = function () end;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 send = function (_, d) return #d, 0; end;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 close = function () end;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 receive = function ()
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 local events = inh:read();
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 for _, event in ipairs(events) do
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 local mod = watches[watch_ids[event.wd]];
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 if mod then
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27 local host, name = mod.host, mod.name;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 module:log("debug", "Reloading changed module mod_%s on %s", name, host);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 modulemanager.reload(host, name);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30 else
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 module:log("warn", "no watch for %d", event.wd);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34 return "";
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
35 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 };
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 require "net.server".wrapclient(inh_conn, "inotify", inh:fileno(), {
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38 onincoming = function () end, ondisconnect = function () end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 }, "*a");
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 function watch_module(name, host, path)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
42 local id, err = inh:addwatch(path, inotify.IN_CLOSE_WRITE);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43 if not id then return nil, err; end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
44 local k = host.."\0"..name;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45 watches[k] = { id = id, path = path, name = name, host = host };
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 watch_ids[id] = k;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 return true;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
48 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
49
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50 function unwatch_module(name, host)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 local k = host.."\0"..name;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52 if not watches[k] then
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 return nil, "not-watching";
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
55 local id = watches[k].id;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
56 local ok, err = inh:rmwatch(id);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
57 watches[k] = nil;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
58 watch_ids[id] = nil;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59 return ok, err;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
60 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
61
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
62 function module_loaded(event)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
63 local host, name = event.host, event.module;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
64 local path = modulemanager.get_module(host, name).module.path;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
65 if not path then
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
66 module:log("warn", "Couldn't watch mod_%s, no path", name);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
67 return;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
68 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
69 if watch_module(name, host, path) then
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
70 module:log("debug", "Watching mod_%s", name);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
71 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
72 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
73
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
74 function module_unloaded(event)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
75 unwatch_module(event.module, event.host);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
76 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
77
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
78 function module.add_host(module)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
79 module:hook("module-loaded", module_loaded);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
80 module:hook("module-unloaded", module_unloaded);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
81 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
82
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
83 module:hook("module-loaded", module_loaded);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
84 module:hook("module-unloaded", module_unloaded);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
85