Fixup error shell, exception log level in main() and arch checking before docker wrapping in cmd_build()

main.py

@@ -34,10 +34,13 @@ def cli(verbose: bool = False, config_file: str = None, no_wrapper: bool = False
 def main():
     try:
         return cli(prog_name='kupferbootstrap')
-    except Exception:
-        logging.fatal(get_trace())
-        logging.info('Starting error shell. Type exit to quit.')
+    except Exception as ex:
+        if config.runtime['verbose']:
+            logging.fatal(get_trace())
+        else:
+            logging.fatal(ex)
         if config.runtime['error_shell']:
+            logging.info('Starting error shell. Type exit to quit.')
             subprocess.call('/bin/bash')
         exit(1)
 

packages.py

@@ -497,13 +497,13 @@ def cmd_packages():
 @click.option('--arch', default=None)
 @click.argument('paths', nargs=-1)
 def cmd_build(paths: list[str], force=False, arch=None):
-    enforce_wrap()
     if arch is None:
         # arch = config.get_profile()...
         arch = 'aarch64'
 
     if arch not in ARCHES:
         raise Exception(f'Unknown architecture "{arch}". Choices: {", ".join(ARCHES)}')
+    enforce_wrap()
 
     for _arch in set([arch, config.runtime['arch']]):
         check_prebuilts(_arch)