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44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
import logging
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import os
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import subprocess
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logger = logging.getLogger()
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class BaseRenderEngine(object):
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install_paths = []
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supported_extensions = []
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@classmethod
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def name(cls):
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return cls.__name__.lower()
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@classmethod
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def renderer_path(cls):
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path = None
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try:
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path = subprocess.check_output(['which', cls.name()]).decode('utf-8').strip()
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except subprocess.CalledProcessError:
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for p in cls.install_paths:
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if os.path.exists(p):
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path = p
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except Exception as e:
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logger.exception(e)
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return path
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@classmethod
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def version(cls):
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raise NotImplementedError("version not implemented")
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@classmethod
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def get_help(cls):
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path = cls.renderer_path()
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if not path:
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raise FileNotFoundError("renderer path not found")
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help_doc = subprocess.check_output([path, '-h'], stderr=subprocess.STDOUT).decode('utf-8')
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return help_doc
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@classmethod
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def get_output_formats(cls):
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raise NotImplementedError(f"get_output_formats not implemented for {cls.__name__}") |