Added management command to manually reindex libraries

cms/djangoapps/contentstore/management/commands/reindex_library.py

+from django.core.management import BaseCommand, CommandError
+from optparse import make_option
+from textwrap import dedent
+
+from contentstore.courseware_index import LibrarySearchIndexer
+
+from opaque_keys.edx.keys import CourseKey
+from opaque_keys import InvalidKeyError
+from opaque_keys.edx.locations import SlashSeparatedCourseKey
+from opaque_keys.edx.locator import LibraryLocator
+
+from .prompt import query_yes_no
+
+from xmodule.modulestore.django import modulestore
+
+
+class Command(BaseCommand):
+    """
+    Command to reindex content libraries (single, multiple or all available)
+
+    Examples:
+
+        ./manage.py reindex_library lib1 lib2 - reindexes libraries with keys lib1 and lib2
+        ./manage.py reindex_library --all - reindexes all available libraries
+    """
+    help = dedent(__doc__)
+
+    can_import_settings = True
+
+    args = "<library_id library_id ...>"
+
+    option_list = BaseCommand.option_list + (
+        make_option(
+            '--all',
+            action='store_true',
+            dest='all',
+            default=False,
+            help='Reindex all libraries'
+        ),)
+
+    def _parse_library_key(self, raw_value):
+        """ Parses library key from string """
+        try:
+            result = CourseKey.from_string(raw_value)
+        except InvalidKeyError:
+            result = SlashSeparatedCourseKey.from_deprecated_string(raw_value)
+
+        if not isinstance(result, LibraryLocator):
+            raise CommandError("Argument {0} is not a library key".format(raw_value))
+
+        return result
+
+    def handle(self, *args, **options):
+        """
+        By convention set by django developers, this method actually executes command's actions.
+        So, there could be no better docstring than emphasize this once again.
+        """
+        if len(args) == 0 and not options.get('all', False):
+            raise CommandError("reindex_library requires one or more arguments: <library_id>")
+
+        store = modulestore()
+
+        if options.get('all', False):
+            if query_yes_no(
+                "Reindexing all libraries might be a time consuming operation. Do you want to continue?",
+                default="no"
+            ):
+                library_keys = [library.location.library_key for library in store.get_libraries()]
+            else:
+                return
+        else:
+            library_keys = map(self._parse_library_key, args)
+
+        for library_key in library_keys:
+            LibrarySearchIndexer.do_library_reindex(store, library_key)