annotate mod_auto_activate_hosts/mod_auto_activate_hosts.lua @ 4383:1e7406b85add

mod_groups_internal: new module for grouping beyond mod_adhoc_groups
author Matthew Wild <mwild1@gmail.com>
date Mon, 25 Jan 2021 18:43:20 +0100
parents 8b7bca07f5c0
children
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1 module:set_global();
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2
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3 local hostmanager = require"core.hostmanager";
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4
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5 local array = require "util.array";
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6 local set = require "util.set";
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7 local it = require "util.iterators";
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8 local config = require "core.configmanager";
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10 local function host_not_global(host)
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11 return host ~= "*";
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12 end
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14 local function host_is_enabled(host)
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15 return config.get(host, "enabled") ~= false;
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16 end
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18 function handle_reload()
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19 local new_config = config.getconfig();
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20 local active_hosts = set.new(array.collect(it.keys(prosody.hosts)):filter(host_not_global));
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21 local enabled_hosts = set.new(array.collect(it.keys(new_config)):filter(host_is_enabled):filter(host_not_global));
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22 local need_to_activate = enabled_hosts - active_hosts;
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23 local need_to_deactivate = active_hosts - enabled_hosts;
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25 module:log("debug", "Config reloaded... %d hosts need activating, and %d hosts need deactivating", it.count(need_to_activate), it.count(need_to_deactivate));
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26 module:log("debug", "There are %d enabled and %d active hosts", it.count(enabled_hosts), it.count(active_hosts));
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27 for host in need_to_deactivate do
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28 hostmanager.deactivate(host);
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29 end
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31 -- If the lazy loader is loaded, hosts will get activated when they are needed
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32 if not(getmetatable(prosody.hosts) and getmetatable(prosody.hosts).lazy_loader) then
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33 for host in need_to_activate do
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34 hostmanager.activate(host);
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35 end
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36 end
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37 end
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39 module:hook_global("config-reloaded", handle_reload);