CLI: Add --sort/--no-sort to verdi code export (#6345)

When running `verdi code export`, the generated yaml file is
automatically sorted. However, the resulting alphabetical ordering is
not what is typically found in the code yaml files in the
`aiida-code-registry` and `aiida-resource-registry`.

The `--sort/--no-sort` switch is added to allow toggling the
sorting of the keys in the output YAML.

src/aiida/cmdline/commands/cmd_code.py

@@ -236,8 +236,14 @@ def show(code):
 @verdi_code.command()
 @arguments.CODE()
 @arguments.OUTPUT_FILE(type=click.Path(exists=False))
+@click.option(
+    '--sort/--no-sort',
+    is_flag=True,
+    default=True,
+    help='Sort the keys of the output YAML.',
+)
 @with_dbenv()
-def export(code, output_file):
+def export(code, output_file, sort):
     """Export code to a yaml file."""
     import yaml
 
@@ -255,7 +261,7 @@ def export(code, output_file):
             code_data[key] = str(value)
 
     with open(output_file, 'w', encoding='utf-8') as yfhandle:
-        yaml.dump(code_data, yfhandle)
+        yaml.dump(code_data, yfhandle, sort_keys=sort)
 
 
 @verdi_code.command()

tests/cmdline/commands/test_code.py

@@ -244,7 +244,8 @@ def test_code_duplicate_ignore(run_cli_command, aiida_code_installed, non_intera
 
 
 @pytest.mark.usefixtures('aiida_profile_clean')
-def test_code_export(run_cli_command, aiida_code_installed, tmp_path, file_regression):
+@pytest.mark.parametrize('sort', (True, False))
+def test_code_export(run_cli_command, aiida_code_installed, tmp_path, file_regression, sort):
     """Test export the code setup to str."""
     prepend_text = 'module load something\n    some command'
     code = aiida_code_installed(
@@ -254,7 +255,10 @@ def test_code_export(run_cli_command, aiida_code_installed, tmp_path, file_regre
         prepend_text=prepend_text,
     )
     filepath = tmp_path / 'code.yml'
+
     options = [str(code.pk), str(filepath)]
+    options.append('--sort' if sort else '--no-sort')
+
     run_cli_command(cmd_code.export, options)
 
     # file regression check

tests/cmdline/commands/test_code/test_code_export_False_.yml

@@ -0,0 +1,8 @@
+label: code
+description: ''
+default_calc_job_plugin: core.arithmetic.add
+use_double_quotes: 'False'
+prepend_text: "module load something\n    some command"
+append_text: ''
+computer: localhost
+filepath_executable: /bin/cat

tests/cmdline/commands/test_code/test_code_export_True_.yml

@@ -0,0 +1,8 @@
+append_text: ''
+computer: localhost
+default_calc_job_plugin: core.arithmetic.add
+description: ''
+filepath_executable: /bin/cat
+label: code
+prepend_text: "module load something\n    some command"
+use_double_quotes: 'False'