74 lines
1.9 KiB
Python
74 lines
1.9 KiB
Python
# system
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import logging
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import os
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import subprocess
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def _is_executable(filename):
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if filename is None:
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return False
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return os.path.isfile(filename) and os.access(filename, os.X_OK)
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def _find_exe_file(exe_name):
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for path in os.environ['PATH'].split(os.pathsep):
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exe_file = os.path.join(path, exe_name)
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if _is_executable(exe_file):
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return exe_file
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raise FileNotFoundError(f"Executable '{exe_name}' not found in $PATH!")
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class Executable:
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class __Executable:
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__exe_path = None
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def __init__(self, exe_name):
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self.__exe_path = _find_exe_file(exe_name)
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def __build_cmd(self, args, kwargs):
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cmd = [self.__exe_path, *args]
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logging.debug(f"Executable cmd{cmd}, kwargs{kwargs}")
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return cmd
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def run(self, process_args, **kwargs):
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return subprocess.run(
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self.__build_cmd(process_args, kwargs),
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**kwargs
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)
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def Popen(self, process_args, **kwargs):
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return subprocess.Popen(
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self.__build_cmd(process_args, kwargs),
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**kwargs
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)
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def run_less(self, process_args, **kwargs):
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kwargs['stdout'] = subprocess.PIPE
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kwargs['stderr'] = subprocess.DEVNULL
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process = self.Popen(
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process_args,
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**kwargs
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)
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less_process = Executable('less').run([
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'-R', '+G'
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], stdin=process.stdout)
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process.communicate()
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return less_process
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__exe_name = None
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__instances = {}
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def __init__(self, exe_name):
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self.__exe_name = exe_name
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if exe_name not in Executable.__instances:
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Executable.__instances[exe_name] = Executable.__Executable(exe_name)
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def __getattr__(self, item):
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return getattr(self.__instances[self.__exe_name], item)
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