A better application structure

app/corpora/__init__.py

@@ -3,6 +3,7 @@ from flask_login import login_required
 
 
 bp = Blueprint('corpora', __name__)
+bp.cli.short_help = 'Corpus commands.'
 
 
 @bp.before_request
@@ -15,6 +16,4 @@ def before_request():
     pass
 
 
-from . import cqi_over_socketio, routes, json_routes
-from . import files
-from . import followers
+from . import cli, cqi_over_socketio, files, followers, routes, json_routes

app/corpora/cli.py

@@ -0,0 +1,21 @@
+from app.models import Corpus, CorpusStatus
+import os
+import shutil
+from . import bp
+
+
+@bp.cli.command('reset')
+def reset():
+    ''' Reset built corpora. '''
+    status = [
+        CorpusStatus.QUEUED,
+        CorpusStatus.BUILDING,
+        CorpusStatus.BUILT,
+        CorpusStatus.STARTING_ANALYSIS_SESSION,
+        CorpusStatus.RUNNING_ANALYSIS_SESSION,
+        CorpusStatus.CANCELING_ANALYSIS_SESSION
+    ]
+    for corpus in [x for x in Corpus.query.all() if x.status in status]:
+        shutil.rmtree(os.path.join(corpus.path, 'cwb'), ignore_errors=True)
+        corpus.status = CorpusStatus.SUBMITTED
+        corpus.num_analysis_sessions = 0