Move to using click rather than docopt

requirements.txt

@@ -9,5 +9,5 @@ WTForms==1.0.5
 Werkzeug==0.9.4
 itsdangerous==0.24
 wsgiref==0.1.2
-docopt==0.6.1
+click==0.7
 sphinx-rtd-theme==0.1.6

sandman/sandmanctl.py

@@ -1,73 +1,43 @@
-"""Script to run sandman via command line
-
-Usage:
-    sandmanctl.py URI [--show-pks --generate-pks] [--host=host] [--port=port] [--version]
-    sandmanctl.py --version
-
-Start sandman and connect to database at URI
-
-Supported database dialects:
-
-[PostgreSQL]
-[MySQL]
-[Oracle]
-[Microsoft SQL Server]
-[SQLite]
-[Drizzle]
-[Firebird]
-[Sybase]
-
-External dialects and packages:
-
-[IBM DB2]: ibm_db_sa
-[SAP Sybase SQL Anywhere]: sqlalchemy-sqlany
-[MonetDB]: sqlalchemy-monetdb
-
-Arguments:
-    URI     RFC-1738 style database URI
-
-Options:
-    -h --help                   Show this screen.
-    -s --show-primary-keys      Display primary key columns in the admin
-                                interface
-    -g --generate-pks           Use the combination of all columns as the
-                                primary key for tables without primary keys
-                                (primary keys are required by the mapping
-                                engine). Implies --primary-keys
-    -v --version                Display current version of sandman and exit
-    --host <host>               Host to run sandmanctl on
-    --port <port>               Port to run sandmanctl on
-
-'postgresql+psycopg2://scott:tiger@localhost/test'
-'postgresql+psycopg2://scott:tiger@localhost/test' --generate-pks --host localhost --port 8080
-'sqlite+pysqlite:///relative/path/to/db.db'
-'sqlite:////absolute/path/to/db.db'
-
-"""
+"""Script to run sandman via command line."""
 from __future__ import absolute_import
-import sys
 
-from docopt import docopt
+import click
 
 from sandman import app
 from sandman.model import activate
 
-def main(test_options=None):
-    """Main entry point for script."""
+def print_version(ctx, value):
+    """Print the current version of sandman and exit."""
+    if not value:
+        return
     import pkg_resources
     version = None
     try:
         version = pkg_resources.get_distribution('sandman').version
     finally:
         del pkg_resources
-
-    options = test_options or docopt(__doc__, version=version)
-    URI = options['URI']
-    app.config['SQLALCHEMY_DATABASE_URI'] = options['URI']
-    app.config['SANDMAN_GENERATE_PKS'] = options['--generate-pks'] or False
-    app.config['SANDMAN_SHOW_PKS'] = options['--show-pks'] or False
-    host = options.get('--host') or '0.0.0.0'
-    port = options.get('--port') or 5000
+    click.echo(version)
+    ctx.exit()
+
+
+@click.command()
+@click.option('--generate-pks/--no-generate-pks', default=False,
+        help='Have sandman generate primary keys for tables without one')
+@click.option('--show-pks/--no-show-pks', default=False,
+        help='Have sandman show primary key columns in the admin view')
+@click.option('--host', default='0.0.0.0',
+        help='Hostname of database server to connect to')
+@click.option('--port', default=8080,
+        help='Port of database server to connect to')
+@click.option('--version', is_flag=True,
+        callback=print_version, expose_value=False, is_eager=True)
+@click.argument('URI', metavar='<URI>')
+def run(generate_pks, show_pks, host, port, uri):
+    """Connect sandman to <URI> and start the API server/admin
+    interface."""
+    app.config['SQLALCHEMY_DATABASE_URI'] = uri
+    app.config['SANDMAN_GENERATE_PKS'] = generate_pks
+    app.config['SANDMAN_SHOW_PKS'] = show_pks
     app.config['SERVER_HOST'] = host
     app.config['SERVER_PORT'] = port
     activate(name='sandmanctl')

setup.py

@@ -46,15 +46,16 @@ def run_tests(self):
                       'Flask-Admin>=1.0.6',
                       'Flask-HTTPAuth>=2.2.1',
                       'docopt>=0.6.1',
-                      'sphinx-rtd-theme',
+                      'click',
+                      #'sphinx-rtd-theme',
                       ],
     cmdclass={'test': PyTest},
     author_email='[email protected]',
     description='Automated REST APIs for existing database-driven systems',
     long_description=long_description,
     entry_points={
         'console_scripts': [
-            'sandmanctl = sandman.sandmanctl:main',
+            'sandmanctl = sandman.sandmanctl:run',
             ],
         },
     packages=['sandman', 'sandman.model'],