Rename "datasette publish now" to "datasette publish nowv1"

Also added an alias so "datasette publish now" continues to work.

Closes #472

datasette/cli.py

@@ -98,7 +98,16 @@ async def inspect_(files, sqlite_extensions):
     return data
 
 
-@cli.group()
+class PublishAliases(click.Group):
+    aliases = {"now": "nowv1"}
+
+    def get_command(self, ctx, cmd_name):
+        if cmd_name in self.aliases:
+            return click.Group.get_command(self, ctx, self.aliases[cmd_name])
+        return click.Group.get_command(self, ctx, cmd_name)
+
+
+@cli.group(cls=PublishAliases)
 def publish():
     "Publish specified SQLite database files to the internet along with a Datasette-powered interface and API"
     pass

datasette/publish/now.py

@@ -24,7 +24,7 @@ def publish_subcommand(publish):
     @click.option("--token", help="Auth token to use for deploy")
     @click.option("--alias", multiple=True, help="Desired alias e.g. yoursite.now.sh")
     @click.option("--spatialite", is_flag=True, help="Enable SpatialLite extension")
-    def now(
+    def nowv1(
         files,
         metadata,
         extra_options,