57 lines
1.4 KiB
Python
57 lines
1.4 KiB
Python
from __future__ import unicode_literals
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import logging
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import os
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import tempfile
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import sh
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from common.settings import setting_temporary_directory
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from .exceptions import UnpaperError
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from .parsers import parse_document_page
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from .parsers.exceptions import ParserError, ParserUnknownFile
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from .settings import UNPAPER_PATH
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logger = logging.getLogger(__name__)
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try:
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UNPAPER = sh.Command(UNPAPER_PATH).bake(
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overwrite=True, no_multi_pages=True
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)
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except sh.CommandNotFound:
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logger.debug('unpaper not found')
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UNPAPER = None
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"""
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for document_page in document_version.pages.all():
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try:
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# Try to extract text by means of a parser
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parse_document_page(document_page)
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except (ParserError, ParserUnknownFile):
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# Fall back to doing visual OCR
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"""
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def execute_unpaper(input_filepath, output_filepath=None):
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"""
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Executes the program unpaper using subprocess's Popen
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"""
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if UNPAPER:
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if not output_filepath:
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fd, output_filepath = tempfile.mkstemp(
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dir=setting_temporary_directory.value
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)
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try:
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UNPAPER(input_filepath, output_filepath)
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except sh.ErrorReturnCode as exception:
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logger.error(exception)
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raise UnpaperError(exception.stderr)
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else:
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return output_filepath
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finally:
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os.close(fd)
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else:
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return input_filepath
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