Initial changes to update the OCR app

apps/ocr/registry.py

@@ -0,0 +1,63 @@
+from __future__ import absolute_import
+
+from django.utils.translation import ugettext_lazy as _
+
+from smart_settings import LocalScope
+
+from .icons import icon_submit_document
+
+label = _(u'OCR')
+description = _(u'Handles optical character recognition.')
+icon = icon_submit_document
+dependencies = ['app_registry', 'icons', 'navigation']
+settings = [
+    {
+        'name': 'TESSERACT_PATH',
+        'default': u'/usr/bin/tesseract',
+        'exists': True,
+        'scopes': [LocalScope()]
+    },
+    {
+        'name': 'TESSERACT_LANGUAGE',
+        'default': u'eng',
+        'scopes': [LocalScope()]
+    },
+    {
+        'name': 'REPLICATION_DELAY',
+        'default': 0,
+        'description': _(u'Amount of seconds to delay OCR of documents to allow for the node\'s storage replication overhead.'),
+        'scopes': [LocalScope()]
+    },
+    {
+        'name': 'NODE_CONCURRENT_EXECUTION',
+        'default': 1,
+        'description': _(u'Maximum amount of concurrent document OCRs a node can perform.'),
+        'scopes': [LocalScope()]
+    },
+    {
+        'name': 'AUTOMATIC_OCR',
+        'default': True,
+        'description': _(u'Automatically queue newly created documents for OCR.'),
+        'scopes': [LocalScope()]
+    },
+    {
+        'name': 'QUEUE_PROCESSING_INTERVAL',
+        'default': 10,
+        'description': _(u'Automatically queue newly created documents for OCR.'),
+        'scopes': [LocalScope()]
+    },
+    {
+        'name': 'UNPAPER_PATH',
+        'default': u'/usr/bin/unpaper',
+        'description': _(u'File path to unpaper program.'),
+        'exists': True,
+        'scopes': [LocalScope()]
+    },
+    {
+        'name': 'PDFTOTEXT_PATH',
+        'default': u'/usr/bin/pdftotext',
+        'description': _(u'File path to poppler\'s pdftotext program used to extract text from PDF files.'),
+        'exists': True,
+        'scopes': [LocalScope()]
+    },
+]