2:42 p.m.
Author: justi9
Date: 2008-09-25 15:42:18 -0400 (Thu, 25 Sep 2008)
New Revision: 2544
Added:
mgmt/trunk/parsley/
mgmt/trunk/parsley/python/
mgmt/trunk/parsley/python/parsley/
mgmt/trunk/parsley/python/parsley/__init__.py
mgmt/trunk/parsley/python/parsley/command.py
Modified:
mgmt/trunk/etc/devel.profile
mgmt/trunk/etc/devel.profile.tcsh
Log:
Introduces the parsley project, for utility code used across the spicy
projects. We're starting with some common code for creating the cumin
(and soon, mint) clis.
Modified: mgmt/trunk/etc/devel.profile
===================================================================
--- mgmt/trunk/etc/devel.profile 2008-09-25 15:26:14 UTC (rev 2543)
+++ mgmt/trunk/etc/devel.profile 2008-09-25 19:42:18 UTC (rev 2544)
@@ -1,5 +1,5 @@
export DEVEL_HOME="$PWD"
-export DEVEL_MODULES="basil mint cumin"
+export DEVEL_MODULES="mint cumin basil parsley"
# PYTHONPATH
Modified: mgmt/trunk/etc/devel.profile.tcsh
===================================================================
--- mgmt/trunk/etc/devel.profile.tcsh 2008-09-25 15:26:14 UTC (rev 2543)
+++ mgmt/trunk/etc/devel.profile.tcsh 2008-09-25 19:42:18 UTC (rev 2544)
@@ -1,5 +1,5 @@
setenv DEVEL_HOME "$PWD"
-set DEVEL_MODULES=(mint cumin)
+set DEVEL_MODULES=(mint cumin basil parsley)
# PYTHONPATH
Added: mgmt/trunk/parsley/python/parsley/__init__.py
===================================================================
Added: mgmt/trunk/parsley/python/parsley/command.py
===================================================================
--- mgmt/trunk/parsley/python/parsley/command.py (rev 0)
+++ mgmt/trunk/parsley/python/parsley/command.py 2008-09-25 19:42:18 UTC (rev 2544)
@@ -0,0 +1,160 @@
+class Command(object):
+ def __init__(self, parent, name):
+ self.parent = parent
+ self.name = name
+ self.aliases = ()
+ self.arguments = ()
+ self.description = None
+
+ self.options = list()
+ self.options_by_param = dict()
+
+ self.commands = list()
+ self.commands_by_name = dict()
+
+ if self.parent:
+ self.parent.commands.append(self)
+ self.parent.commands_by_name[self.name] = self
+
+ def init(self):
+ if self.parent:
+ for alias in self.aliases:
+ self.parent.commands_by_name[alias] = self
+
+ for option in self.options:
+ option.init()
+
+ for command in self.commands:
+ command.init()
+
+ def parse_options(self, argv):
+ opts = dict()
+ opt = None
+ remaining = list()
+
+ def find_opt(key):
+ try:
+ opt = self.options_by_param[key]
+ opts[opt.name] = None
+ return opt
+ except KeyError:
+ msg = "Option '%s' is unrecognized" % key
+ raise CommandException(self, msg)
+
+ for i, arg in enumerate(argv):
+ if arg.startswith("--"):
+ opt = find_opt(arg[2:])
+ elif arg.startswith("-"):
+ opt = find_opt(arg[1])
+ elif opt:
+ if opt.argument:
+ opts[opt.name] = opt.unmarshal(arg)
+ opt = None
+ else:
+ remaining = argv[i:]
+ break
+ else:
+ remaining = argv[i:]
+ break
+
+ return opts, remaining
+
+ def parse(self, argv):
+ opts = dict()
+ args = list()
+ opt = None
+
+ def find_opt(key):
+ try:
+ opt = self.options_by_param[key]
+ opts[opt.name] = None
+ return opt
+ except KeyError:
+ msg = "Option '%s' is unrecognized" % key
+ raise CommandException(self, msg)
+
+ for arg in argv:
+ if arg.startswith("--"):
+ opt = find_opt(arg[2:])
+ elif arg.startswith("-"):
+ opt = find_opt(arg[1])
+ elif opt:
+ if opt.argument:
+ opts[opt.name] = opt.unmarshal(arg)
+ opt = None
+ else:
+ args.append(arg)
+ else:
+ args.append(arg)
+
+ return opts, args
+
+ def print_help(self):
+ usage = list()
+
+ if self.parent:
+ usage.append(self.parent.name)
+
+ usage.append(self.name)
+
+ if self.options:
+ usage.append("[OPTIONS]")
+
+ if self.commands:
+ usage.append("COMMAND")
+ elif self.arguments:
+ usage.extend(self.arguments)
+
+ print "Usage: %s" % " ".join(usage)
+
+ if self.description:
+ print "Description: %s" % self.description
+
+ if self.options:
+ print "Options:"
+
+ for opt in self.options:
+ osummary = "--%s" % opt.name
+
+ if opt.char:
+ osummary = osummary + " (-%s)" % opt.char
+
+ if opt.argument:
+ osummary = osummary + " " + opt.argument
+
+ print " %-30s %s" % (osummary, opt.description)
+
+ if self.commands:
+ print "Commands:"
+
+ for command in self.commands:
+ if command.aliases:
+ names = "%s (%s)" % (command.name, ",
".join(command.aliases))
+ else:
+ names = command.name
+
+ print " %-30s %s" % (names, command.description)
+
+class CommandOption(object):
+ def __init__(self, command, name, char=None):
+ self.command = command
+ self.name = name
+ self.char = char
+ self.argument = None
+ self.description = None
+ self.type = str
+
+ self.command.options.append(self)
+ self.command.options_by_param[self.name] = self
+
+ def init(self):
+ if self.char:
+ self.command.options_by_param[self.char] = self
+
+ def unmarshal(self, value):
+ return self.type(value)
+
+class CommandException(Exception):
+ def __init__(self, command, message):
+ self.command = command
+ self.message = message