Initial commit to support staging file background image generation and caching.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/sources/literals.py

@@ -2,6 +2,13 @@ from __future__ import unicode_literals
 
 from django.utils.translation import ugettext_lazy as _
 
+DEFAULT_IMAP_MAILBOX = 'INBOX'
+DEFAULT_INTERVAL = 600
+DEFAULT_METADATA_ATTACHMENT_NAME = 'metadata.yaml'
+DEFAULT_POP3_TIMEOUT = 60
+DEFAULT_SOURCE_LOCK_EXPIRE = 600
+DEFAULT_SOURCE_TASK_RETRY_DELAY = 10
+
 SCANNER_SOURCE_FLATBED = 'flatbed'
 SCANNER_SOURCE_ADF = 'Automatic Document Feeder'
 
@@ -58,10 +65,4 @@ SOURCE_CHOICES = (
     (SOURCE_CHOICE_EMAIL_POP3, _('POP3 email')),
     (SOURCE_CHOICE_EMAIL_IMAP, _('IMAP email')),
 )
-
-DEFAULT_SOURCE_LOCK_EXPIRE = 600
-DEFAULT_INTERVAL = 600
-DEFAULT_METADATA_ATTACHMENT_NAME = 'metadata.yaml'
-DEFAULT_POP3_TIMEOUT = 60
-DEFAULT_IMAP_MAILBOX = 'INBOX'
-DEFAULT_SOURCE_TASK_RETRY_DELAY = 10
+STAGING_FILE_IMAGE_TASK_TIMEOUT = 120