api/examples: Simplify optparse use

- The default 'default' is None
- The default 'dest' is the option name, with - replaced with _
- The default 'action' is 'store'

Not coincidentally, these defaults are correct for most of our existing code.

(imported from commit 9c6078bd778324e08e1ca214a97281a7bdce08c2)

examples/get-public-streams

@@ -32,17 +32,9 @@ Prints out all the public streams in the realm.
 Example: get-public-streams --user=tabbott@humbughq.com --site=https://zephyr.humbughq.com
 """
 parser = optparse.OptionParser(usage=usage)
-parser.add_option('--site',
+parser.add_option('--site', default='https://humbughq.com')
-                  dest='site',
+parser.add_option('--api-key')
-                  default="https://humbughq.com",
+parser.add_option('--user')
-                  action='store')
-parser.add_option('--api-key',
-                  dest='api_key',
-                  default=None,
-                  action='store')
-parser.add_option('--user',
-                  dest='user',
-                  action='store')
 (options, args) = parser.parse_args()
 
 sys.path.append(path.join(path.dirname(__file__), '../..'))

examples/list-subscriptions

@@ -32,17 +32,9 @@ Prints out a list of the user's subscriptions.
 Example: list-subscriptions --user=tabbott@humbughq.com --site=https://zephyr.humbughq.com
 """
 parser = optparse.OptionParser(usage=usage)
-parser.add_option('--site',
+parser.add_option('--site', default='https://humbughq.com')
-                  dest='site',
+parser.add_option('--api-key')
-                  default="https://humbughq.com",
+parser.add_option('--user')
-                  action='store')
-parser.add_option('--api-key',
-                  dest='api_key',
-                  default=None,
-                  action='store')
-parser.add_option('--user',
-                  dest='user',
-                  action='store')
 (options, args) = parser.parse_args()
 
 sys.path.append(path.join(path.dirname(__file__), '../..'))

examples/print-messages

@@ -32,17 +32,9 @@ Prints out each message received by the indicated user.
 Example: print-messages --user=tabbott@humbughq.com --site=https://zephyr.humbughq.com
 """
 parser = optparse.OptionParser(usage=usage)
-parser.add_option('--site',
+parser.add_option('--site', default='https://humbughq.com')
-                  dest='site',
+parser.add_option('--api-key')
-                  default="https://humbughq.com",
+parser.add_option('--user')
-                  action='store')
-parser.add_option('--api-key',
-                  dest='api_key',
-                  default=None,
-                  action='store')
-parser.add_option('--user',
-                  dest='user',
-                  action='store')
 (options, args) = parser.parse_args()
 
 sys.path.append(path.join(path.dirname(__file__), '../..'))

examples/print-next-message

@@ -32,17 +32,9 @@ Prints out the next message received by the user.
 Example: print-next-messages --user=tabbott@humbughq.com --site=https://zephyr.humbughq.com
 """
 parser = optparse.OptionParser(usage=usage)
-parser.add_option('--site',
+parser.add_option('--site', default='https://humbughq.com')
-                  dest='site',
+parser.add_option('--api-key')
-                  default="https://humbughq.com",
+parser.add_option('--user')
-                  action='store')
-parser.add_option('--api-key',
-                  dest='api_key',
-                  default=None,
-                  action='store')
-parser.add_option('--user',
-                  dest='user',
-                  action='store')
 (options, args) = parser.parse_args()
 
 sys.path.append(path.join(path.dirname(__file__), '../..'))

examples/send-message

@@ -33,22 +33,10 @@ Example: send-message --type=stream commits
 Example: send-message --site=https://zephyr.humbughq.com iago@humbughq.com
 """
 parser = optparse.OptionParser(usage=usage)
-parser.add_option('--site',
+parser.add_option('--api-key')
-                  dest='site',
+parser.add_option('--site',   default='https://humbughq.com')
-                  default="https://humbughq.com",
+parser.add_option('--sender', default='othello@humbughq.com')
-                  action='store')
+parser.add_option('--type',   default='private')
-parser.add_option('--api-key',
-                  dest='api_key',
-                  default=None,
-                  action='store')
-parser.add_option('--sender',
-                  dest='sender',
-                  default='othello@humbughq.com',
-                  action='store')
-parser.add_option('--type',
-                  dest='type',
-                  default='private',
-                  action='store')
 (options, args) = parser.parse_args()
 
 if len(args) == 0:

examples/subscribe

@@ -32,21 +32,10 @@ Ensures the user is subscribed to the listed streams.
 Example: subscribe --user=tabbott@humbughq.com --site=https://zephyr.humbughq.com
 """
 parser = optparse.OptionParser(usage=usage)
-parser.add_option('--site',
+parser.add_option('--api-key')
-                  dest='site',
+parser.add_option('--user')
-                  default="https://humbughq.com",
+parser.add_option('--site',    default='https://humbughq.com')
-                  action='store')
+parser.add_option('--streams', default='')
-parser.add_option('--api-key',
-                  dest='api_key',
-                  default=None,
-                  action='store')
-parser.add_option('--streams',
-                  dest='streams',
-                  default="",
-                  action='store')
-parser.add_option('--user',
-                  dest='user',
-                  action='store')
 (options, args) = parser.parse_args()
 
 sys.path.append(path.join(path.dirname(__file__), '../..'))

examples/unsubscribe

@@ -32,21 +32,10 @@ Ensures the user is not subscribed to the listed streams.
 Example: unsubscribe --user=tabbott@humbughq.com --site=https://zephyr.humbughq.com
 """
 parser = optparse.OptionParser(usage=usage)
-parser.add_option('--site',
+parser.add_option('--api-key')
-                  dest='site',
+parser.add_option('--user')
-                  default="https://humbughq.com",
+parser.add_option('--site',    default='https://humbughq.com')
-                  action='store')
+parser.add_option('--streams', default='')
-parser.add_option('--api-key',
-                  dest='api_key',
-                  default=None,
-                  action='store')
-parser.add_option('--streams',
-                  dest='streams',
-                  default="",
-                  action='store')
-parser.add_option('--user',
-                  dest='user',
-                  action='store')
 (options, args) = parser.parse_args()
 
 sys.path.append(path.join(path.dirname(__file__), '../..'))