allow updating properties of the identity

ui/cli.py

@@ -46,6 +46,8 @@ def _makeuuid(s):
 
 	return uuid.UUID(s)
 
+# XXX - known issue, store is not atomic/safe, overwrites in place instead of renames
+
 # XXX - add validation
 # XXX - how to add singletons
 class MDBase(object):
@@ -473,6 +475,8 @@ def main():
 	    default=[], help='delete the arg as metadata from files.  Either specify tag, and all tags are removed, or specify tag=value and that specific tag will be removed.')
 	parser.add_option('-g', action='store_true', dest='generateident',
 	    default=False, help='generate an identity')
+	parser.add_option('-i', action='store_true', dest='updateident',
+	    default=False, help='update the identity')
 	parser.add_option('-l', action='store_true', dest='list',
 	    default=False, help='list metadata')
 
@@ -481,15 +485,19 @@ def main():
 	# this is shared between generateident and add
 	addprops = map(lambda x: x.split('=', 1), options.add)
 
-	if options.generateident:
+	if options.generateident or options.updateident:
 		identfname = os.path.expanduser('~/.medashare_identity.pasn1')
 
-		if os.path.exists(identfname):
+		if options.generateident and os.path.exists(identfname):
 			print >>sys.stderr, 'Error: Identity already created.'
 			sys.exit(1)
 
-		persona = Persona()
-		persona.generate_key()
+		if options.generateident:
+			persona = Persona()
+			persona.generate_key()
+		else:
+			persona = Persona.load(identfname)
+
 		persona.new_version(*addprops)
 		persona.store(identfname)
 		return
@@ -830,24 +838,70 @@ class _TestCases(unittest.TestCase):
 
 		with mock.patch('os.path.expanduser', side_effect=expandusermock) \
 		    as eu:
+			# that generating a new identity
 			with nested(mock.patch('sys.stdout',
 			    StringIO.StringIO()), mock.patch('sys.argv',
 			    [ 'progname', '-g', '-a', 'name=A Test User' ])) as (stdout, argv):
 				main()
-				self.assertEqual(stdout.getvalue(),
-				    '')
+
+				# does not output anything
+				self.assertEqual(stdout.getvalue(), '')
+
+			# looks up the correct file
 			eu.assert_called_with('~/.medashare_identity.pasn1')
+
+			# and that the identity
 			persona = Persona.load(identfname)
-			self.assertEqual(persona.get_identity().name, 'A Test User')
+			pident = persona.get_identity()
 
+			# has the correct name
+			self.assertEqual(pident.name, 'A Test User')
+
+			# that when generating an identity when one already exists
 			with nested(mock.patch('sys.stderr',
 			    StringIO.StringIO()), mock.patch('sys.argv',
 			    [ 'progname', '-g', '-a', 'name=A Test User' ])) as (stderr, argv):
-				self.assertRaises(SystemExit, main)
+				# that it exits
+				with self.assertRaises(SystemExit) as cm:
+					main()
+
+				# with error code 5
+				self.assertEqual(cm.exception[0], 1)
+
+				# and outputs an error message
 				self.assertEqual(stderr.getvalue(),
 				    'Error: Identity already created.\n')
+
+			# and looked up the correct file
 			eu.assert_called_with('~/.medashare_identity.pasn1')
 
+			# that when updating the identity
+			with nested(mock.patch('sys.stdout',
+			    StringIO.StringIO()), mock.patch('sys.argv',
+			    [ 'progname', '-i', '-a', 'name=Changed Name' ])) as (stdout, argv):
+				main()
+
+				# it doesn't output anything
+				self.assertEqual(stdout.getvalue(), '')
+
+			# and looked up the correct file
+			eu.assert_called_with('~/.medashare_identity.pasn1')
+
+			npersona = Persona.load(identfname)
+			nident = npersona.get_identity()
+
+			# and has the new name
+			self.assertEqual(nident.name, 'Changed Name')
+
+			# and has the same old uuid
+			self.assertEqual(nident.uuid, pident.uuid)
+
+			# and that the modified date has changed
+			self.assertNotEqual(pident.modified, nident.modified)
+
+			# and that the old Persona can verify the new one
+			self.assertTrue(persona.verify(nident))
+
 			with nested(mock.patch('sys.stdout',
 			    StringIO.StringIO()), mock.patch('sys.argv',
 			    [ 'progname', '-l', testfname ])) as (stdout, argv):