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skip pdf processing if necessary

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This commit is contained in:
Rodney Ewing 2013-08-27 15:56:11 -07:00
parent 2e22cefdd9
commit be49edba05
1 changed files with 26 additions and 0 deletions
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26
mediagoblin/media_types/pdf/processing.py
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@ -261,6 +261,22 @@ class CommonPdfProcessor(MediaProcessor):
else:
self.pdf_filename = self._generate_pdf()
def _skip_processing(self, keyname, **kwargs):
file_metadata = self.entry.get_file_metadata(keyname)
skip = True
if not file_metadata:
return False
if keyname == 'thumb':
if kwargs.get('thumb_size') != file_metadata.get('thumb_size'):
skip = False
elif keyname == 'medium':
if kwargs.get('size') != file_metadata.get('size'):
skip = False
return skip
def copy_original(self):
copy_original(
self.entry, self.process_filename,
@ -271,6 +287,9 @@ class CommonPdfProcessor(MediaProcessor):
thumb_size = (mgg.global_config['media:thumb']['max_width'],
mgg.global_config['media:thumb']['max_height'])
if self._skip_processing('thumb', thumb_size=thumb_size):
return
# Note: pdftocairo adds '.png', so don't include an ext
thumb_filename = os.path.join(self.workbench.dir,
self.name_builder.fill(
@ -288,6 +307,8 @@ class CommonPdfProcessor(MediaProcessor):
store_public(self.entry, 'thumb', thumb_filename + '.png',
self.name_builder.fill('{basename}.thumbnail.png'))
self.entry.set_file_metadata('thumb', thumb_size=thumb_size)
def _generate_pdf(self):
"""
Store the pdf. If the file is not a pdf, make it a pdf
@ -317,6 +338,9 @@ class CommonPdfProcessor(MediaProcessor):
size = (mgg.global_config['media:medium']['max_width'],
mgg.global_config['media:medium']['max_height'])
if self._skip_processing('medium', size=size):
return
# Note: pdftocairo adds '.png', so don't include an ext
filename = os.path.join(self.workbench.dir,
self.name_builder.fill('{basename}.medium'))
@ -333,6 +357,8 @@ class CommonPdfProcessor(MediaProcessor):
store_public(self.entry, 'medium', filename + '.png',
self.name_builder.fill('{basename}.medium.png'))
self.entry.set_file_metadata('medium', size=size)
class InitialProcessor(CommonPdfProcessor):
"""