Mercurial > prosody-modules

annotate mod_inotify_reload/mod_inotify_reload.lua @ 5853:97c9b76867ca

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_log_ringbuffer: Detach event handlers on logging reload (thanks Menel) Otherwise the global event handlers accumulate, one added each time logging is reoladed, and each invocation of the signal or event triggers one dump of each created ringbuffer.
author Kim Alvefur <zash@zash.se>
date Sun, 03 Mar 2024 11:23:40 +0100
parents 82207f936f1f
children
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
5395
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
15 require"net.server".watchfd(inh:fileno(), function()
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
16 local events = inh:read();
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
17 for _, event in ipairs(events) do
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
18 local mod = watches[watch_ids[event.wd]];
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
19 if mod then
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
20 local host, name = mod.host, mod.name;
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
21 module:log("debug", "Reloading changed module mod_%s on %s", name, host);
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
22 modulemanager.reload(host, name);
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
23 else
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
24 module:log("warn", "no watch for %d", event.wd);
652
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 end
5395
82207f936f1f mod_inotify_reload: Update to use FD watching method
Kim Alvefur <zash@zash.se>
parents: 744
diff changeset
27 end);
652
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
29 function watch_module(name, host, path)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30 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
31 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
32 local k = host.."\0"..name;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33 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
34 watch_ids[id] = k;
744
ab988e98a9f9 mod_inotify_reload: Add debug logging
Matthew Wild <mwild1@gmail.com>
parents: 652
diff changeset
35 module:log("debug", "Watching %s:%s with id %d", name, host, id);
652
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 return true;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 function unwatch_module(name, host)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 local k = host.."\0"..name;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 if not watches[k] then
744
ab988e98a9f9 mod_inotify_reload: Add debug logging
Matthew Wild <mwild1@gmail.com>
parents: 652
diff changeset
42 module:log("warn", "Not watching %s:%s", name, host);
652
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43 return nil, "not-watching";
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
44 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45 local id = watches[k].id;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 local ok, err = inh:rmwatch(id);
744
ab988e98a9f9 mod_inotify_reload: Add debug logging
Matthew Wild <mwild1@gmail.com>
parents: 652
diff changeset
47 module:log("info", "Removed watch %d", id);
652
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
48 watches[k] = nil;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
49 watch_ids[id] = nil;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50 return ok, err;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 function module_loaded(event)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54 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
55 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
56 if not path then
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
57 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
58 return;
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
59 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
60 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
61 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
62 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
63 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
64
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
65 function module_unloaded(event)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
66 unwatch_module(event.module, event.host);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
67 end
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
68
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
69 function module.add_host(module)
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
70 module:hook("module-loaded", module_loaded);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
71 module:hook("module-unloaded", module_unloaded);
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 module:hook("module-loaded", module_loaded);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
75 module:hook("module-unloaded", module_unloaded);
3e6f43ab7e22 mod_inotify_reload: Reload modules when their code changes
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
76