rename and fix the db_wipe command

* rename db_wipe to db_recreate
* make --repo-path an optional argument for db_wipe and use it
* add command line help strings for db_wipe

Closes-Bug: #1279734

Change-Id: I1a1d3ad56989026fb10f6c57bb479814dc51328e

doc/source/dev/manual_install.rst

@@ -212,7 +212,7 @@ Prepare database
 ----------------
 * Initialize the database::
 
-    # trove-manage --config-file=<PathToTroveConf> db_wipe trove_test.sqlite mysql fake
+    # trove-manage --config-file=<PathToTroveConf> db_recreate trove_test.sqlite mysql fake
 
 * Setup trove to use the uploaded image. Enter the following in a single line, note quotes (') and backquotes(`)::
 

tools/start-fake-mode.sh

@@ -10,7 +10,7 @@ function run() {
     .tox/py26/bin/python $@
 }
 run bin/trove-manage \
-    --config-file=etc/trove/trove.conf.test db_wipe \
+    --config-file=etc/trove/trove.conf.test db_recreate \
     trove_test.sqlite mysql fake
 run bin/trove-fake-mode \
     --fork --config-file=etc/trove/trove.conf.test \

trove/cmd/manage.py

@@ -77,10 +77,10 @@ class Commands(object):
         except exception.DatastoreNotFound as e:
             print(e)
 
-    def db_wipe(self, repo_path):
+    def db_recreate(self, repo_path):
         """Drops the database and recreates it."""
         self.db_api.drop_db(CONF)
-        self.db_sync()
+        self.db_sync(repo_path)
 
     def params_of(self, command_name):
         if Commands.has(command_name):
@@ -113,7 +113,11 @@ def main():
         parser.add_argument('packages')
         parser.add_argument('active')
 
-        parser = subparser.add_parser('db_wipe')
+        parser = subparser.add_parser(
+            'db_recreate', description='Drop the database and recreate it')
+        parser.add_argument(
+            '--repo_path', help='SQLAlchemy Migrate repository path')
+        parser = subparser.add_parser('db_recreate')
         parser.add_argument('repo_path')
 
     cfg.custom_parser('action', actions)