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calculate-utils-3-console-gui/libs_crutch/core/variables/variable.py

304 lines
9.7 KiB

# -*- coding: utf-8 -*-
# Copyright 2011-2016 Mir Calculate. http://www.calculate-linux.org
#
# 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.
import sys
import re
from os import path
from calculate.lib.datavars import (Variable, ReadonlyVariable, VariableError,
TableVariable)
from calculate.core.server.api_types import LazyString
from calculate.lib.cl_lang import setLocalTranslate
_ = lambda x: x
setLocalTranslate('cl_core3', sys.modules[__name__])
from calculate.lib.utils.files import listDirectory
from itertools import *
class VarHelper(object):
aliases = (('main', 'lib'),)
mapName = dict(aliases)
mapMethod = {'importLib': 'importVariables',
'importConsolegui': 'importGui'}
mapObject = {'DataVarsLib': 'DataVars',
'DataVarsConsolegui': 'DataVarsGui'}
mapSection = dict(map(lambda x: (x[1], x[0]), aliases))
class VariableClVariableData(TableVariable):
"""
Table for modification variables
"""
type = "table"
opt = ["--set"]
metavalue = "VAR[=VALUE[:LOCATION]]"
# (arg-0:VAR)(arg-1:=(arg-2:VALUE):WRITE)
syntax = "^(?P<arg_0>[^=:]+)(?P<arg_1>=(?P<arg_2>[^=]*?)(:?:[a-z]+)?)?$"
# "(?:!=(?P<arg_1>\w*)))$")
source = ['cl_variable_fullname',
'cl_variable_type',
'cl_variable_location',
'cl_variable_value']
def set(self, value):
"""
Fix data received from cmdline
"""
action = self.Get('cl_action')
def fix_cmdline_params(fullname, location, v):
if location.startswith("="):
if re.match("^.*?:[a-z]+$", location):
location = location.rpartition(':')[2]
else:
location = "system"
return fullname, location, v
def fix_value_for_append(fullname, location, v):
if action == 'append':
prevval = self.Get(fullname)
typevar = self.parent.getInfo(fullname).type
val = self.parent.unserialize(typevar, v)
prevval.extend(filter(lambda x: x not in prevval, val))
else:
return fullname, location, v
res = list(starmap(fix_value_for_append,
starmap(fix_cmdline_params,
value)))
return res
def init(self):
self.label = _("Variables")
self.help = _("write to the variable. VAR is the variable name. "
"VALUE is the new variable value. LOCATION is where "
"the env file is located (system,local,remote). "
"Variable will be removed from all env files if "
"only VAR is specified.")
def raiseReadonlyIndexError(self, fieldname="", variablename="",
value=""):
"""
Behavior on change readonly index
"""
raise VariableError(_("Variable %s not found") % value)
class VariableClVariableModuleName(ReadonlyVariable):
"""
Available modules
"""
type = "list"
def get(self):
site_packages = map(lambda x: path.join(x, "calculate"),
filter(lambda x: (x.endswith('site-packages') and
x.startswith('/usr/lib')),
sys.path))
retlist = []
for module, modDir in chain(
*map(lambda x: map(lambda y: (path.basename(y), y),
listDirectory(x, True, True)),
site_packages)):
if path.exists(path.join(modDir, "datavars.py")):
retlist.append(module)
mod_map = {'lib': 0, 'install': 1, 'core': 2}
return sorted(retlist, key=lambda x: mod_map.get(x, x))
class VariableClVariableFullname(VarHelper, ReadonlyVariable):
"""
Variable name
"""
type = "list"
def init(self):
self.label = _("Name")
def get_all_var_name(self):
"""
Init all variable modules and get names
"""
for moduleName in self.Get('cl_variable_module_name'):
module_section = self.mapSection.get(moduleName, moduleName)
if module_section not in self.parent.importedModules:
self.parent.importVariables(
'calculate.%s.variables' % moduleName)
self.parent.flIniFile()
for varname, vardata in sorted(self.parent.allVars.items()):
if (vardata[0] == module_section and
not varname.startswith('cl_variable')):
yield "%s.%s" % (module_section, varname)
def get(self):
return list(self.get_all_var_name())
class VariableClVariableType(VarHelper, ReadonlyVariable):
"""
Variable type
"""
type = "list"
def init(self):
self.label = _("Type")
def fill_type(self, var):
varobj = self.parent.getInfo(var)
return "%s%s" % (varobj.mode, varobj.getCharType())
def get(self):
return map(self.fill_type,
self.Get('cl_variable_fullname'))
class VariableClVariableValue(VarHelper, Variable):
"""
Variable value
"""
type = "list"
class LazyVal(LazyString):
"""
Lazy value return string value only before using
"""
def __init__(self, dv, var):
self.var = var
self.dv = dv
self.dv.flIniFile()
def __call__(self):
var_val = self.dv.Get(self.var)
type_var = self.dv.getInfo(self.var).type
return self.dv.serialize(type_var, var_val)
def __str__(self):
return self()
def init(self):
self.label = _("Value")
def fill_var(self, var):
"""
Fill all value of variables only lazy call
"""
if var not in ('cl_variable_value', 'cl_variable_data'):
return self.LazyVal(self.parent, var)
else:
return ""
def get(self):
return map(self.fill_var,
self.Get('cl_variable_fullname'))
def check(self, value):
checklist = []
for var, write, val in filter(lambda x: x[1] != "",
zip(self.Get('cl_variable_fullname'),
self.Get('cl_variable_location'),
value)):
val = str(val)
type_var = self.parent.getInfo(var).type
# convert list value to list (',' - separator)
val = self.parent.unserialize(type_var, val)
# increase verbosity of error on set variable
checklist.append((var, val))
# double check
for i in [0, 1]:
for var, val in checklist:
try:
self.parent.Set(var, val)
except VariableError as e:
raise VariableError([VariableError(
_("Error writing to variable %s:") % var), e])
class VariableClVariableLocation(VarHelper, Variable):
"""
Flag write variable to ini
"""
type = "choice-list"
def init(self):
self.label = _("Location")
def choice(self):
return [("", "Default")] + map(lambda x: (x, x),
self.Get('cl_env_location'))
def fill_write(self, var):
return self.parent.isFromIni(var)
def get(self):
return map(lambda x: self.parent.isFromIni(x),
self.Get('cl_variable_fullname'))
class VariableClVariableFilter(VarHelper, Variable):
"""
Display variables
"""
type = "choiceedit"
value = "all"
opt = ["--filter"]
metavalue = "FILTER"
def init(self):
self.label = _("Filter")
self.help = _("display variables ('userset' displays user set "
"variables, 'writable' displays only writable "
"variables, 'system' displays user set variables "
"from the system env file, 'local' displays user "
"set variables from the local env file, 'remote' "
"displays user set variables from the remote env "
"file, 'all' displays all variables or filters them "
"by part of name)")
def choice(self):
return (("userset", _("User set")),
("writable", _("Writable")),
("system", _("System")),
("local", _("Local")),
("remote", _("Remote")),
("all", _("All")))
class VariableClVariableShow(VarHelper, Variable):
"""
Display only value
"""
type = "choice"
value = ""
opt = ["--only-value"]
metavalue = "VARIABLE"
def init(self):
self.label = _("Show the value")
self.help = _("show the variable value")
def raiseWrongChoice(self, name, choice_val, val, error):
re_index = re.compile("((?:\w+\.)?(\w+))(?:\[(\d+)\])?")
varname = re_index.search(val)
if varname and not varname.group(1) in choice_val:
raise VariableError(_("Variable %s not found") % val)
def choice(self):
return self.Get('cl_variable_fullname')