Implemented module version of mcwrapper

mcwrapper functionality split to modules. This is basic implementation
of modules handling. Two module types are recognized. For server and
commands for mcwrapper cli interface. This way can be implemented
different command and server features simply without modifying main
script. Interface between main script and modules is defined using
service lists. Service list informs main script what function should
be called in module.

More detailed description should be written to README.md file. Or even
separated file describing module interface.

In this commit are implemented five different modules. Players and status
are server modules. They are used only if mcwrapper is running instance
of Minecraft server. Modules say and list-modules are implementing
mcwrapper actions. And last module argmodules is implementing mcwrapper
argument. For modules usage also added utils.py. This contains shared
usable code that is used even by main mcwrapper script.

1 files changed, 49 insertions, 0 deletions

diff --git a/modules/say.py b/modules/say.py
new file mode 100644
index 0000000..64810e0
--- /dev/null
+++ b/modules/say.py
@@ -0,0 +1,49 @@
+import sys
+import re
+import utils
+from utils import conf
+
+services = (
+		utils.Service.action,
+		)
+
+def action(args):
+	if conf.action == None:
+		if args[0].lower() != 'say':
+			return False
+		conf.action = 'say'
+		conf.action_module = sys.modules[__name__]
+		conf.sayMessage = []
+		for arg in args[1:]:
+			if conf.identifier == None:
+				conf.identifier = arg
+			else:
+				conf.sayMessage.append(arg)
+		return len(args)
+	else:
+		return 0
+
+def action_exec():
+	if not conf.sayMessage or not conf.identifier:
+		action_full_help()
+		return
+	if not utils.isServerRunning():
+		sys.exit("Server is not running or wrong identifier.")
+	with open(sconf.inputPipe, 'w') as f:
+		f.write("/say " + ' '.join(map(str, sconf.saymessage)) + '\n')
+		f.flush()
+
+def action_help():
+	print('   say')
+	print('       Sends message to Minecraft server chat.')
+
+def action_full_help():
+	print('mcwrapper [arguments...] say IDENTIFIER {message...}')
+	print('  Sends message to Minecraft server chat.')
+	print('')
+	print(' arguments')
+	utils.printArgumentsHelp()
+	print(' IDENTIFIER')
+	print('   Identifier of running server instance.')
+	print(' message')
+	print('   Message to be send to Minecraft server chat.')