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103 lines
3.3 KiB
Lua
103 lines
3.3 KiB
Lua
module:set_global();
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local async = require("prosody.util.async");
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local active_hosts = {}
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function module.add_host(host_module)
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local last_run_times = host_module:open_store("cron", "map");
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active_hosts[host_module.host] = true;
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local function save_task(task, started_at)
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last_run_times:set(nil, task.id, started_at);
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end
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local function restore_task(task)
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if task.last == nil then
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task.last = last_run_times:get(nil, task.id);
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end
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end
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local function task_added(event)
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local task = event.item;
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if task.name == nil then task.name = task.when; end
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if task.id == nil then
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task.id = event.source.name .. "/" ..
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task.name:gsub("%W", "_"):lower();
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end
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task.period = host_module:get_option_period(
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task.id:gsub("/", "_") .. "_period", "1" .. task.when,
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60, 86400 * 7 * 53);
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task.restore = restore_task;
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task.save = save_task;
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module:log("debug", "%s task %s added", task.when, task.id);
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return true
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end
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local function task_removed(event)
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local task = event.item;
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host_module:log("debug", "Task %s removed", task.id);
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return true
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end
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host_module:handle_items("task", task_added, task_removed, true);
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function host_module.unload() active_hosts[host_module.host] = nil; end
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end
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local function should_run(task, last)
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return not last or last + task.period * 0.995 <= os.time()
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end
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local function run_task(task)
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task:restore();
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if not should_run(task, task.last) then return end
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local started_at = os.time();
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task:run(started_at);
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task.last = started_at;
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task:save(started_at);
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end
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local task_runner = async.runner(run_task);
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scheduled = module:add_timer(1, function()
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module:log("info", "Running periodic tasks");
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local delay = 3600;
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for host in pairs(active_hosts) do
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module:log("debug", "Running periodic tasks for host %s", host);
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for _, task in ipairs(module:context(host):get_host_items("task")) do
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task_runner:run(task);
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end
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end
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module:log("debug", "Wait %ds", delay);
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return delay
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end);
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module:add_item("shell-command", {
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section = "cron",
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section_desc = "View and manage recurring tasks",
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name = "tasks",
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desc = "View registered tasks",
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args = {},
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handler = function(self, filter_host)
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local format_table = require("prosody.util.human.io").table;
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local it = require("util.iterators");
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local row = format_table({
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{title = "Host", width = "2p"}, {title = "Task", width = "3p"},
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{title = "Desc", width = "3p"}, {title = "When", width = "1p"},
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{title = "Last run", width = "20"}
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}, self.session.width);
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local print = self.session.print;
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print(row());
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for host in it.sorted_pairs(filter_host and {[filter_host] = true} or
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active_hosts) do
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for _, task in ipairs(module:context(host):get_host_items("task")) do
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print(row({
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host, task.id, task.name, task.when,
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task.last and os.date("%Y-%m-%d %R:%S", task.last) or
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"never"
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}));
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end
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end
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end
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});
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