Beispiel #1
0
 def _is_compress_filetype(self, inpath):
     """private method that performs magic number and size check on file to determine whether to compress the file"""
     # check for common file type suffixes in order to avoid the need for file reads to check magic number for binary vs. text file
     if self._is_common_binary(inpath):
         return False
     elif self._is_common_text(inpath):
         return True
     else:
         # files > 10kB get checked for compression (arbitrary decision to skip compression on small files)
         the_file_size = file_size(inpath)
         if the_file_size > 10240:
             if the_file_size > 512000:  # seems to be a break point at ~ 500kb where file compression offset by additional file read, so limit tests to files > 500kB
                 try:
                     system_command = "file --mime-type -b " + quote(inpath)
                     response = muterun(system_command)
                     if response.stdout[0:5] == "text/":  # check for a text file mime type
                         return True   # appropriate size, appropriate file mime type
                     else:
                         return False  # appropriate size, inappropriate file mime type
                 except Exception:
                     return False
             else:
                 return True  # if file size is < 500kB, skip the additional file read and just go with compression
         else:
             return False  # below minimum size to consider compression, do not compress
Beispiel #2
0
 def _is_compress_filetype(self, inpath):
     """private method that performs magic number and size check on file to determine whether to compress the file"""
     # check for common file type suffixes in order to avoid the need for file reads to check magic number for binary vs. text file
     if self._is_common_binary(inpath):
         return False
     elif self._is_common_text(inpath):
         return True
     else:
         # files > 10kB get checked for compression (arbitrary decision to skip compression on small files)
         the_file_size = file_size(inpath)
         if the_file_size > 10240:
             if the_file_size > 512000:  # seems to be a break point at ~ 500kb where file compression offset by additional file read, so limit tests to files > 500kB
                 try:
                     system_command = "file --mime-type -b " + quote(inpath)
                     response = muterun(system_command)
                     if response.stdout[0:5] == "text/":  # check for a text file mime type
                         return True   # appropriate size, appropriate file mime type
                     else:
                         return False  # appropriate size, inappropriate file mime type
                 except Exception:
                     return False
             else:
                 return True  # if file size is < 500kB, skip the additional file read and just go with compression
         else:
             return False  # below minimum size to consider compression, do not compress
Beispiel #3
0
	def test_sys_meta_file_size(self):
		"""Test file size metadata read"""
		self.assertEqual(61, system.file_size(self.metafilepath))
Beispiel #4
0
 def test_sys_meta_file_size(self):
     """Test file size metadata read"""
     self.assertEqual(61, system.file_size(self.metafilepath))