* Optimize Elasticsearch fullword field
Since the main display_name field ngrams words up to 15 characters,
anything to and under that will already be indexed - the fullword field
(which we have for words longer than 15 characters) needs to index only
words longer than that.
* Preprocess ES terms for better literal matching
This commit adds a new .exact subfield to display_name, which holds a
barely-filtered version of the original title we can do "literal"
matching against. This is not real substring matching, but quoting
terms now actually does something!
Implements a simple preprocessor for the search terms to extract quoted
parts from the search terms, optionally prefixed with - to negate them.
The preprocessor will create a query that'll join all three query-types:
the simple_query_string, must-phrases and must-not-phrases.
Index names are not necessarily named 'ix_table_column', so inspect the real schema for index names. Results are cached in memory.
(I have no clue how, but mine are prefixed idx_ instead of ix_!)
Clears out the "sort" variable naming as well.
* Replace all `from nyaa import app` imports with `app = flask.current_app` (or `from flask import current_app as app` where possible)
* Add a separate config object for top-level and class statements as `nyaa.extensions.config`
Required because those codes don't have app context at the time of evaluation/execution.
* Remove `routes.py` file and register all blueprints in `nyaa/__init__.py`
* Refactor `nyaa/__init__.py` into an app factory
* Update tools
* Update tests (temporary, will be replaced)
* Update isort settings
* Apply import sorting (isort) on all files in nyaa/
* Fixed Flake8 errors in nyaa/ (see PR for list)
* Add isort to lint.sh and requirements.txt
This fixes searching for "Machiavellianism", 16 chars ("Machiavellianis", 15 chars, worked previously).
Does not (seem to!) break anything, but requires a re-indexing of ES.
Add support for sorting comments (in advance),
add th for sorting by comments_count, add title to the counter box and fix it being under the torrent's name,
