add config file and modules file cli options

allow to provide a config file and a modules file option to use
different files than the default ones. this is useful when using the
same environment for different databases.

odoo_openupgrade_wizard/cli/cli.py

@@ -33,6 +33,9 @@ from odoo_openupgrade_wizard.cli.cli_run import run
 from odoo_openupgrade_wizard.cli.cli_upgrade import upgrade
 from odoo_openupgrade_wizard.tools.tools_system import ensure_folder_exists
 
+DEFAULT_CONFIG_FILE = "config.yml"
+DEFAULT_MODULES_FILE = "modules.csv"
+
 
 @click.group()
 @click.version_option(version=odoo_openupgrade_wizard.__version__)
@@ -49,6 +52,29 @@ from odoo_openupgrade_wizard.tools.tools_system import ensure_folder_exists
     " and all the Odoo code required to make the migrations. Let empty to"
     " use current folder (./).",
 )
+@click.option(
+    "-c",
+    "--config-file",
+    type=click.Path(
+        exists=True,
+        file_okay=True,
+    ),
+    help=(
+        f"Configuration file to use. By default, a file named "
+        f'"{DEFAULT_CONFIG_FILE}" in the environment folder will be used.'
+    ),
+)
+@click.option(
+    "--modules-file",
+    type=click.Path(
+        exists=True,
+        file_okay=True,
+    ),
+    help=(
+        f"Modules file to use. By default, a file named "
+        f'"{DEFAULT_MODULES_FILE}" in the environment folder will be used.'
+    ),
+)
 @click.option(
     "--filestore-folder",
     type=click.Path(
@@ -60,7 +86,9 @@ from odoo_openupgrade_wizard.tools.tools_system import ensure_folder_exists
 )
 @click.option("-l", "--log-level", type=LogLevel(), default=logging.INFO)
 @click.pass_context
-def main(ctx, env_folder, filestore_folder, log_level):
+def main(
+    ctx, env_folder, config_file, modules_file, filestore_folder, log_level
+):
     """
     Provides a command set to perform odoo Community Edition migrations.
     """
@@ -92,8 +120,15 @@ def main(ctx, env_folder, filestore_folder, log_level):
     log_file_path = log_folder_path / Path(log_prefix + ".log")
     logger.add(log_file_path)
 
-    config_file_path = env_folder_path / Path("config.yml")
-    module_file_path = env_folder_path / Path("modules.csv")
+    if config_file:
+        config_file_path = Path(config_file)
+    else:
+        config_file_path = env_folder_path / Path(DEFAULT_CONFIG_FILE)
+
+    if modules_file:
+        module_file_path = Path(modules_file)
+    else:
+        module_file_path = env_folder_path / Path(DEFAULT_MODULES_FILE)
 
     # Add all global values in the context
     ctx.obj["env_folder_path"] = env_folder_path