[Feature] Add function to show plugins stat

diff --git a/lualib/rspamadm/plugins_stats.lua b/lualib/rspamadm/plugins_stats.lua
new file mode 100644 (file)
index 0000000..465396a
--- /dev/null
+++ b/lualib/rspamadm/plugins_stats.lua
@@ -0,0 +1,44 @@
+--[[
+Copyright (c) 2017, Vsevolod Stakhov <vsevolod@highsecure.ru>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+]]--
+
+local ansicolors = require "rspamadm/ansicolors"
+
+local function printf(fmt, ...)
+  print(string.format(fmt, ...))
+end
+
+local function highlight(str)
+  return ansicolors.white .. str .. ansicolors.reset
+end
+
+local function print_plugins_table(tbl, what)
+  local mods = {}
+  for k, _ in pairs(tbl) do
+    table.insert(mods, k)
+  end
+
+  printf("Modules %s: %s", highlight(what), table.concat(mods, ", "))
+end
+
+return function(args, _)
+  print_plugins_table(rspamd_plugins_state.enabled, "enabled")
+  print_plugins_table(rspamd_plugins_state.disabled_unconfigured,
+    "disabled (unconfigured)")
+  print_plugins_table(rspamd_plugins_state.disabled_redis,
+    "disabled (no Redis)")
+  print_plugins_table(rspamd_plugins_state.disabled_failed,
+    "disabled (failed)")
+end
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