console: fix namespace problems when using slapos console with scripts

When using slapos console on scripts defining functions, for example

```py
def my_request(*args, **kw):
  ...
  return request(*args, **kw)
```

the global names such as `request` where no longer available in the
namespace of the function, because of a wrong usage of exec regarding
locals/globals.
Co-authored-by: Kirill Smelkov <kirr@nexedi.com>

CHANGES.rst

 Changes
 =======
 
+1.8.6 (unreleased)
+------------------
+ * console: fix namespace problems when using slapos console with scripts
+
 1.8.5 (2022-12-14)
 ------------------
  * slapos: Update SlapOS website's url

slapos/cli/console.py

@@ -95,7 +95,7 @@ class ConsoleCommand(ClientConfigCommand):
             with open(args.script_file) as f:
                 code = compile(f.read(), args.script_file, 'exec')
                 local['__file__'] = args.script_file
-                return exec_(code, globals(), local)
+                return exec_(code, local, local)
 
         if not any([args.python, args.ipython, args.bpython]):
             args.ipython = True

slapos/tests/test_cli.py

@@ -802,6 +802,29 @@ print(request('software_release', 'instance').getInstanceParameterDict()['parame
       mock_request.assert_called_once_with(
           'software_release', 'instance')
 
+  def test_console_script_global_namespace(self):
+    script = textwrap.dedent('''\
+      from __future__ import print_function
+      variable = 'OK'
+      def f():
+        print('slapos short-hand names',
+           'OK' if supply is not None and request is not None else 'PROBLEM')
+        # namespace behave normally:
+        print('non local variables', variable)
+        print('builtins', 'OK' if str is not None else 'PROBLEM')
+      f()
+      ''')
+    with tempfile.NamedTemporaryFile(mode='w', suffix='.py') as script_file, \
+          patch.object(sys, 'stderr', StringIO()) as stderr, \
+         self._test_console() as (app, config_file, _, stdout):
+      script_file.write(script)
+      script_file.flush()
+      app.run(('console', '--cfg', config_file, script_file.name))
+      self.assertNotIn('ERROR', stderr.getvalue())
+      self.assertIn('slapos short-hand names OK', stdout.getvalue())
+      self.assertIn('non local variables OK', stdout.getvalue())
+      self.assertIn('builtins OK', stdout.getvalue())
+
   def test_console_script__file__(self):
     with self._test_console() as (app, config_file, _, stdout),\
       tempfile.NamedTemporaryFile('w') as script: