Mercurial > prosody-modules

annotate mod_inotify_reload/mod_inotify_reload.lua @ 5675:17ea26cf7259

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_storage_s3: Use '@' as placeholder for empty (host) store slots Used when the server stores things for itself.
author Kim Alvefur <zash@zash.se>
date Sat, 14 Oct 2023 22:49:57 +0200
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