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#!/usr/bin/env python
# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# Universal Select Tool
# Uselect Modules/Actions Module
# umodule.py mephx.x@gmail.com
import re
import os
from uio import Counter
from uio import filesystem
from uio import printsystem
modules_dir = '/usr/share/uselect/modules/'
class Action:
def __init__(self, name = None, lines = None, description = None, type = None):
self.description = description
self.name = name
self.output = []
self.usage = []
self.options = []
self.type = type
if type == 'runnable':
self.__class__ = Runnable
elif type == 'env':
self.__class__ = Env
elif type == 'sym':
if filesystem.uid != 'root':
self.__class__ = Path
else:
self.__class__ = Sym
elif type == 'profile':
self.__class__ = ProfileAction
else:
raise UserWarning('Action "' + name + '" has no type set!')
self.setup()
class Runnable(Action):
def do_action(self, args):
if len(args) != 0:
path = '/tmp/' + self.name
filesystem.write_file(path, self.code)
filesystem.make_exec_file(path)
for line in filesystem.execute_cmd(path,args).readlines():
self.output.append(line[:-1])
filesystem.delete_file(path)
def add_parameter(self, parameter):
"""
Adds Usage Parameters.
"""
self.parameters.append(parameter)
def add_usage(self, usage):
"""
Adds Usage Code.
"""
usage = usage.split('\n')
args = []
path = '/tmp/' + self.name
filesystem.write_file(path, usage)
filesystem.make_exec_file(path)
for line in filesystem.execute_cmd(path,args):
self.usage.append(line[:-1])
filesystem.delete_file(path)
def add_code(self, lines = None):
"""
Add Code.
"""
lines = lines.split('\n')
self.code = lines
def setup(self):
self.code = []
self.parameters = []
self.usage = []
def build(self):
return
class Link:
def add_link(self, link = None):
"""
Add a sub-link.
"""
self.links.append(link)
link.parent = self
def __init__(self, lines = None, alias = None, target = None, prefix = None, regexp = None, sufix = ''):
self.alias = alias
self.target = prefix + alias
self.prefix = prefix
self.sufix = sufix
self.regexp = regexp
self.targets = []
self.status = []
self.links = []
self.destination = self.prefix + self.alias
def get_links(self, counter = None):
"""
Builds a nested list with the Link's hierarchy.
"""
links = []
target = []
if self.links == []:
return
for link in self.links:
if len(link.targets) == 0:
raise UserWarning('Link "' + link.alias \
+ '" has no targets!')
for i in range(len(link.targets)):
target.append([counter.count, link, i])
counter.count += 1
sub_links = link.get_links(counter)
if sub_links != None:
target.append(sub_links)
links.append(target)
return links
def build(self):
for link in self.links:
link.build()
for dir in filesystem.list_dir(self.prefix):
match = re.match(self.regexp, dir)
if match:
source = self.prefix + match.group(0) + self.sufix
self.targets.append(source)
if filesystem.path_exists(self.destination):
if filesystem.real_path( \
filesystem.environment + self.alias) == \
source:
self.status.append('notice')
elif filesystem.real_path(self.destination) == source:
self.status.append('ok')
else:
self.status.append('warning')
else:
self.status.append('error')
return
class Sym(Action):
def build_options(self, links):
"""
Builds available options for PrintSystem.
"""
options = []
for link in links:
if link == []:
options.append([0, 'No Targets Found!', 'error'])
elif isinstance(link, list) and not isinstance(link[0], int):
options.append(self.build_options(link))
else:
count = link[0]
i = link[2]
link = link[1]
options.append([count, link.targets[i], link.status[i]])
return options
def get_targets(self, links, option, family = []):
"""
Builds a nested list of targets.
"""
parent = None
for link in links:
if isinstance(link, list) and not isinstance(link[0], int):
if self.get_targets(link, option, family):
if parent != None:
family.append(parent)
return family
else:
family = []
elif isinstance(link, list) and isinstance(link[0], int):
if option == link[0]:
family.append(link)
return True
else:
parent = link
def do_action(self, args):
"""
Implementation of do_action() for Sym.
"""
links = []
counter = Counter()
for link in self.links:
target = []
if len(link.targets) == 0:
raise UserWarning('Link "' + link.alias \
+ '" has no targets!')
for i in range(len(link.targets)):
target.append([counter.count, link,i])
counter.count +=1
sub_links = link.get_links(counter)
if sub_links != None:
target.append(sub_links)
links.append(target)
self.options = self.build_options(links)
if len(args) != 0:
if len(args) >= 1:
for arg in args:
targets = self.get_targets(links, int(arg))
print targets
if targets != None:
for target in targets:
self.do_target(target)
else:
raise UserWarning('Invalid Option "' + args[0] \
+ '"!')
else:
self.parameters = ['<target>','...','<target>']
self.usage.append('Available ' + self.name + ' targets:' )
def do_target(self, target, clear = False):
"""
Activate/Deactivate a target.
"""
i = target[2]
link = target[1]
if clear:
filesystem.delete_file(link.destination)
self.output.append('Unsetting ' + link.destination\
+ ' success!')
else:
filesystem.create_symlink(link.targets[i], \
link.destination)
self.output.append('Setting ' + link.targets[i]\
+ ' success!')
def add_link(self, link = None):
"""
Add sub-link.
"""
self.links.append(link)
def setup(self):
self.links = []
def build(self):
self.parameters = ['<target>', '(...)', '<target>']
for link in self.links:
link.build()
class Var():
def __init__(self, var, filesystem):
filesystem = filesystem
self.name = var
self.values = []
def add_values(self, values, separator = ':', active = True):
"""
Parses a line of values and adds the values.
"""
values = values.split(separator)
for value in values:
self.add_value(value, active)
def add_value(self, value, active = False):
"""
Add a value.
"""
self.values.append([value, active])
def export(self):
filesystem.set_env(self)
def to_string(self, separator = ':'):
"""
Builds a line of values.
"""
string = ''
for value in self.values:
string += value + separator
return string
class ProfileAction(Action):
def do_action(self, args):
if args[0] == 'set':
self.output.append('Folder Profile Set!')
elif args[0] == 'default':
self.output.append('Default Profile Set!')
def build(self):
return
def setup(self):
return
class Env(Action):
def do_action(self, args):
for var in self.vars:
for value in var.values:
if not value[1]:
self.usage.append(var.name)
for value in var.values:
self.usage.append(' ' + value[0])
def get_var(self, name):
"""
Gets a var by name. Inits the var if not found.
"""
for var in self.vars:
if var.name == name:
return var
var = Var(name, filesystem)
self.vars.append(var)
return var
def setup(self):
self.vars = []
def build(self):
env = filesystem.get_env()
for var in env:
_var = self.get_var(var[0])
_var.add_values(var[1])
self.parameters = ['<varname>', '(...)', '<target>']
class Path(Action, Sym):
def do_target(self, target, clear = False):
"""
Implementation of do_target for Path.
Activates/Deactivates targets.
"""
i = target[2]
link = target[1]
filesystem.create_symlink(link.targets[i], \
filesystem.environment + link.alias)
self.output.append('Setting ' + link.targets[i] \
+ ' success!')
class Module():
def __init__(self, name = None , description = None , \
version = 'Undefined', author = 'Undefined', \
_filesystem = None, _printsystem = None):
self.name = name
self.description = description
self.version = version
self.author = author
self.actions = []
return
def add_action(self, action = None):
"""
Adds an action to the module.
"""
if action != None:
self.actions.append(action)
else:
raise UserWarning('You must not add an empty action!')
def get_action(self, name):
"""
Gets an action by name.
"""
i = 0
for action in self.actions:
if action.name == name:
return action
raise Exception('No such action "' + name + '"!')
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