1 files changed, 56 insertions, 0 deletions
diff --git a/src/daemon/sample-config/common.cfg b/src/daemon/sample-config/common.cfg
new file mode 100644
index 0000000..a8e88ab
--- /dev/null
+++ b/src/daemon/sample-config/common.cfg
@@ -0,0 +1,56 @@
+-- -*- mode: lua -*-
+
+-- plugin optionality constants
+OPTIONAL  = 1                            -- mark a plugin optional
+IFEXISTS  = 2                            -- mark a plugin mandatory if present
+MANDATORY = 3                            -- mark a plugin mandatory
+
+-- function to try loading an optional plugin, ignoring errors
+function try_load(plugin, ...)
+   local a = {...}
+   m:info('* Trying to load (optional) plugin ' .. plugin)
+   if     #a == 0 then return m:try_load_plugin(plugin            )
+   elseif #a == 1 then return m:try_load_plugin(plugin, a[1]      )
+   else                return m:try_load_plugin(plugin, a[1], a[2])
+   end
+end
+
+-- function to load a plugin if it exists
+function load_if_exists(plugin, ...)
+   local a = {...}
+   if m:plugin_exists(plugin) then
+      m:info('* Loading (existing) plugin ' .. plugin)
+   else
+      return true
+   end
+   if     #a == 0 then return m:load_plugin(plugin            )
+   elseif #a == 1 then return m:load_plugin(plugin, a[1]      )
+   else                return m:load_plugin(plugin, a[1], a[2])
+   end
+end
+
+-- function to load a mandatory plugin
+function load(plugin, ...)
+   local a = {...}
+   m:info('* Loading (mandatory) plugin ' .. plugin)
+   if     #a == 0 then return m:load_plugin(plugin            )
+   elseif #a == 1 then return m:load_plugin(plugin, a[1]      )
+   else                return m:load_plugin(plugin, a[1], a[2])
+   end
+end
+
+-- function to check if a plugin has been successfully loaded (and running)
+function loaded(plugin)
+   return m:plugin_loaded(plugin)
+end
+
+-- function to include a file
+function include(file, necessity)
+   if necessity < MANDATORY then
+      m:info('* Trying to include (optional) ' .. file)
+      m:try_include(file)
+   else
+      m:info('* Including (mandatory) ' .. file)
+      m:include(file)
+   end
+end