Add a fab script to locally clone remote data

.gitignore

@@ -1,3 +1,4 @@
 *.pyc
 database.db
 common/local_settings.py
+scripts/epcstages.json

scripts/fabfile.py

@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+import os
+import sys
+
+from fabric.api import cd, env, get, local, prefix, prompt, run
+from fabric.utils import abort
+
+env.hosts = ['stages.pierre-coullery.ch']
+
+def clone_remote_db(dbtype='sqlite'):
+    """
+    Copy remote data (JSON dump), download it locally and recreate a local
+    SQLite database with those data.
+    """
+    sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+    from common import settings
+
+    db_path = settings.DATABASES['default']['NAME']
+    if os.path.exists(db_path):
+        rep = prompt('A local database (%s) already exists. Overwrite? (y/n)' % db_path)
+        if rep == 'y':
+            os.remove(db_path)
+        else:
+            abort("Database not copied")
+
+    # Dump remote data and download the file
+    with cd('/var/www/epcstages'):
+        with prefix('source /var/venvs/stages/bin/activate'):
+            run('python manage.py dumpdata --indent 1 contenttypes auth stages > epcstages.json')
+        get('epcstages.json', '.')
+
+    # Recreate a fresh DB with downloaded data
+    local("python ../manage.py syncdb --noinput")
+    local("python ../manage.py migrate")
+    local("python ../manage.py flush --noinput")
+    local("python ../manage.py loaddata epcstages.json")