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""" |
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This module is about path resolving for the program path. |
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This is required to execute Rainmeter.exe for example to refresh the current skin. |
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""" |
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import os |
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from functools import lru_cache |
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import winreg |
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import sublime |
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from .. import logger |
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def get_rm_path_from_default_path(): |
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r""" |
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Default location is "C:\Program Files\Rainmeter" in windows. |
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We can get "C:\Program Files" through the environmental variables |
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%PROGRAMFILES% |
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""" |
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programfiles = os.getenv("PROGRAMFILES") |
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rainmeterpath = os.path.join(programfiles, "Rainmeter") |
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return rainmeterpath |
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def _get_rainmeter_registry_key(): |
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r""" |
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Throw FileNotFoundException if Software\WOW6432Node\Rainmeter does not exist. |
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not much we can do to handle that |
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""" |
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return winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, "SOFTWARE\\WOW6432Node\\Rainmeter") |
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def get_rm_path_from_registry(): |
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"""Registry.""" |
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rainmeter_key = _get_rainmeter_registry_key() |
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rainmeter_path = winreg.QueryValue(rainmeter_key, None) |
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return rainmeter_path |
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def _executable_exists(rm_path): |
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"""Check if Rainmeter executable exists.""" |
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# normalize path |
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rainmeter_exe = os.path.join(rm_path, "Rainmeter.exe") |
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if not os.path.exists(rainmeter_exe): |
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message = """Rainmeter path was found, but no Rainmeter.exe found. |
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Check if you have installed Rainmeter correctly.""" |
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logger.error(message) |
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sublime.error_message(message) |
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return False |
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return True |
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@lru_cache(maxsize=None) |
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def get_cached_program_path(): |
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"""Try to retrieve the program path of RM through magic. |
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Possible options are: |
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* It is given through settings |
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* It is in the default installation path |
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* It is registered in the registry |
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* Ask the user for the path |
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""" |
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# Load setting |
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settings = sublime.load_settings("Rainmeter.sublime-settings") |
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rm_path = settings.get("rainmeter_path", None) |
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# If setting is not set, try default location |
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if not rm_path: |
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logger.info("rainmeter_path not found in settings. Trying default location.") |
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rm_path = get_rm_path_from_default_path() |
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# if it is not even specified by default, |
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# try using the registry to retrieve the installation path |
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if not os.path.isdir(rm_path): |
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rm_path = get_rm_path_from_registry() |
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# Check if path exists and contains Rainmeter.exe |
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if not os.path.isdir(rm_path): |
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message = """Path to Rainmeter.exe could neither be found: |
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* in the settings, |
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* in the standard directory, |
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* nor via registry. |
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Check your \"rainmeter_path\" setting.""" |
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logger.info(message) |
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return |
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if not _executable_exists(rm_path): |
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return |
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logger.info("Rainmeter found in " + rm_path) |
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return rm_path + "\\" |
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