🚧 Add debug statements before argument parsing

nextstrain/cli/__init__.py

@@ -18,7 +18,7 @@
 
 from .argparse    import HelpFormatter, register_commands, register_default_command
 from .command     import build, view, deploy, remote, shell, update, setup, check_setup, login, logout, whoami, version, init_shell, authorization, debugger
-from .debug       import DEBUGGING
+from .debug       import DEBUGGING, debug
 from .errors      import NextstrainCliError, UsageError
 from .util        import warn
 from .__version__ import __version__ # noqa: F401 (for re-export)
@@ -30,6 +30,7 @@ def run(args):
     `nextstrain` program.
     """
     parser = make_parser()
+    debug("Parsing arguments…")
     opts = parser.parse_args(args)
 
     try:

nextstrain/cli/command/login.py

@@ -18,6 +18,8 @@
 from getpass import getpass
 from inspect import cleandoc
 from os import environ
+
+from nextstrain.cli.debug import debug
 from ..authn import current_user, login, renew
 from ..errors import UserError
 
@@ -26,6 +28,7 @@
 
 
 def register_parser(subparser):
+    debug("Registering parser…")
     parser = subparser.add_parser("login", help = "Log into Nextstrain.org")
 
     parser.add_argument(