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Now able to write >2GiB service files (haven't tested opening these),\n on IOError not-saved * asterisk will remain in place,\nbefore adding >50GiB files, user is asked first.

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This commit is contained in:
Mattias Põldaru 2011-03-08 11:32:37 +02:00
parent 562a88a993
commit 216cc407c6
1 changed files with 45 additions and 13 deletions
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58
openlp/core/ui/servicemanager.py
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@ -419,17 +419,15 @@ class ServiceManager(QtGui.QWidget):
path_file_name = unicode(self.fileName())
(path, file_name) = os.path.split(path_file_name)
basename = file_name[0:file_name.rfind(u'.')-1]
file_name = basename + '.osz'
service_file_name = basename + '.osd'
log.debug(u'ServiceManager.saveFile - %s' % path_file_name)
SettingsManager.set_last_dir(self.mainwindow.serviceSettingsSection,
path)
service = []
zip = None
file = None
try:
write_list = []
zip = zipfile.ZipFile(path_file_name, 'w')
total_size = 0
for item in self.serviceItems:
service.append({u'serviceitem':
item[u'service_item'].get_service_repr()})
@ -440,20 +438,54 @@ class ServiceManager(QtGui.QWidget):
else:
path_from = os.path.join(frame[u'path'],
frame[u'title'])
# On write a file once
# Only write a file once
if not path_from in write_list:
write_list.append(path_from)
zip.write(path_from,
path_from.encode(u'utf-8'))
file_size = os.path.getsize(path_from)
size_limit = 52428800 # 50MiB
if file_size > size_limit:
# File exeeds size_limit bytes, ask user
message = unicode(self.trUtf8('Do you want'
' to include \n%.1f MiB file "%s"\n'
'into the service file?\n'
'This may take some time.\n\n'
'Please note that you need to\n'
'take care of that file yourself.')) %\
(file_size/1048576,
os.path.split(path_from)[1])
ans = QtGui.QMessageBox.question(self,
self.trUtf8('Including Large File'),
message,
QtGui.QMessageBox.StandardButtons(
QtGui.QMessageBox.Ok|\
QtGui.QMessageBox.Cancel),
QtGui.QMessageBox.Ok)
if ans == QtGui.QMessageBox.Ok:
write_list.append(path_from)
total_size += file_size
else:
write_list.append(path_from)
total_size += file_size
log.debug(u'ServiceManager.saveFile - ZIP contents size is %i'
' bytes' % total_size)
service_content = cPickle.dumps(service)
# Usual Zip file cannot exceed 2GiB, file with Zip64 cannot be
# extracted using unzip in UNIX.
allow_zip_64 = (total_size > 2147483648 + len(service_content))
log.debug(u'ServiceManager.saveFile - allowZip64 is %s' %
allow_zip_64)
zip = zipfile.ZipFile(path_file_name, 'w', zipfile.ZIP_STORED,
allow_zip_64)
# We first add service contents.
# We save ALL filenames into ZIP using UTF-8.
zip.writestr(service_file_name.encode(u'utf-8'),
cPickle.dumps(service))
service_content)
# Finally add all the listed media files.
for path_from in write_list:
zip.write(path_from, path_from.encode(u'utf-8'))
zip.close()
except IOError:
log.exception(u'Failed to save service to disk')
finally:
if file:
file.close()
if zip:
zip.close()
return False
self.mainwindow.addRecentFile(path_file_name)
self.setModified(False)
return True