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#!/usr/bin/env python3
###########################################################################
#
# xasyOptions provides a mechanism for storing and restoring a user's
# preferences.
#
#
# Author: Orest Shardt
# Created: June 29, 2007
#
###########################################################################
import json
import sys
import io
import os
import platform
import shutil
import configs
try:
import cson
except ModuleNotFoundError:
cson = None
try:
pass
# import yaml
except ModuleNotFoundError:
yaml = None
class xasyOptions:
def defaultOptions(self):
if self._defaultOptions is None:
f = io.open(self._defaultOptLocation)
try:
opt = cson.loads(f.read())
finally:
f.close()
self._defaultOptions = opt
return self._defaultOptions
def overrideSettings(self):
settingsName = platform.system()
if settingsName not in self.options:
return
for key in self.options[settingsName]:
self.options[key] = self.options[settingsName][key]
def settingsFileLocation(self):
folder = os.path.expanduser("~/.asy/")
searchOrder = ['.cson', '.yaml', '.json', '']
searchIndex = 0
found = False
currentFile = ''
while searchIndex < len(searchOrder) and not found:
currentFile = os.path.join(folder, self.configName + searchOrder[searchIndex])
if os.path.isfile(currentFile):
found = True
searchIndex += 1
if found:
return os.path.normcase(currentFile)
else:
return os.path.normcase(os.path.join(folder, self.configName + '.cson'))
def __init__(self, configName, defaultConfigLocation):
self.configName = configName
self.defaultConfigName = defaultConfigLocation
self._defaultOptions = None
self._defaultOptLocation = os.path.join(defaultConfigLocation)
self.options = self.defaultOptions()
self.load()
self.overrideSettings()
def __getitem__(self, item):
return self.options[item]
def __setitem__(self, key, value):
self.options[key] = value
def load(self):
fileName = self.settingsFileLocation()
if not os.path.exists(fileName):
# make folder
thedir = os.path.dirname(fileName)
if not os.path.exists(thedir):
os.makedirs(thedir)
if not os.path.isdir(thedir):
raise Exception("Configuration folder path does not point to a folder")
self.setDefaults()
f = io.open(fileName, 'r')
try:
ext = os.path.splitext(fileName)[1]
if ext == '.cson':
if cson is None:
raise ModuleNotFoundError
newOptions = cson.loads(f.read())
elif ext in {'.yml', '.yaml'}:
if yaml is None:
raise ModuleNotFoundError
newOptions = yaml.load(f)
else:
newOptions = json.loads(f.read())
except (IOError, ModuleNotFoundError):
self.setDefaults()
else:
for key in self.options.keys():
if key in newOptions:
assert isinstance(newOptions[key], type(self.options[key]))
else:
newOptions[key] = self.options[key]
self.options = newOptions
finally:
f.close()
def setDefaults(self):
self.options = self.defaultOptions()
if sys.platform[:3] == 'win': # for windows, wince, win32, etc
# setAsyPathFromWindowsRegistry()
pass
folder = os.path.expanduser("~/.asy/")
defaultPath = os.path.join(folder, self.configName + '.cson')
shutil.copy2(self._defaultOptLocation, defaultPath)
# TODO: Figure out how to merge this back.
"""
def setAsyPathFromWindowsRegistry():
if os.name == 'nt':
import _winreg as registry
# test both registry locations
try:
key = registry.OpenKey(registry.HKEY_LOCAL_MACHINE,
"Software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\Asymptote")
options['asyPath'] = registry.QueryValueEx(key, "Path")[0] + "\\asy.exe"
registry.CloseKey(key)
except:
key = registry.OpenKey(registry.HKEY_LOCAL_MACHINE,
"Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Asymptote")
options['asyPath'] = registry.QueryValueEx(key, "InstallLocation")[0] + "\\asy.exe"
registry.CloseKey(key)
"""
class BasicConfigs:
_configPath = list(configs.__path__)[0]
defaultOpt = xasyOptions(
'xasyconfig', os.path.join(_configPath, 'xasyconfig.cson'))
keymaps = xasyOptions('xasykeymap', os.path.join(
_configPath, 'xasykeymap.cson'))
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