fix(commit): resolve 'always_signoff' configuration and '-s' CLI issues

If 'always_signoff' is enabled in configurations, or '-s' is used alone on the CLI,
the following errors arise due to 'git commit' argument failures :

> signoff mechanic is deprecated, please use `cz commit -- -s` instead.
> fatal: /tmp/...: '/tmp/... is outside repository at '...'

Signed-off-by: Adrian DC <radian.dc@gmail.com>

Author: AdrianDC

commitizen/commands/commit.py

@@ -114,13 +114,15 @@ def __call__(self):
             self.arguments.get("signoff") or self.config.settings["always_signoff"]
         )
 
+        extra_args = self.arguments.get("extra_cli_args", "")
+
         if signoff:
             out.warn(
                 "signoff mechanic is deprecated, please use `cz commit -- -s` instead."
             )
-            extra_args = self.arguments.get("extra_cli_args", "--") + " -s"
-        else:
-            extra_args = self.arguments.get("extra_cli_args", "")
+            if extra_args:
+                extra_args += " "
+            extra_args += "-s"
 
         c = git.commit(m, args=extra_args)
 

tests/commands/test_commit_command.py

@@ -260,7 +260,7 @@ def test_commit_command_with_signoff_option(config, mocker: MockFixture):
 
     commands.Commit(config, {"signoff": True})()
 
-    commit_mock.assert_called_once_with(ANY, args="-- -s")
+    commit_mock.assert_called_once_with(ANY, args="-s")
     success_mock.assert_called_once()
 
 
@@ -283,7 +283,30 @@ def test_commit_command_with_always_signoff_enabled(config, mocker: MockFixture)
     config.settings["always_signoff"] = True
     commands.Commit(config, {})()
 
-    commit_mock.assert_called_once_with(ANY, args="-- -s")
+    commit_mock.assert_called_once_with(ANY, args="-s")
+    success_mock.assert_called_once()
+
+
+@pytest.mark.usefixtures("staging_is_clean")
+def test_commit_command_with_gpgsign_and_always_signoff_enabled(config, mocker: MockFixture):
+    prompt_mock = mocker.patch("questionary.prompt")
+    prompt_mock.return_value = {
+        "prefix": "feat",
+        "subject": "user created",
+        "scope": "",
+        "is_breaking_change": False,
+        "body": "",
+        "footer": "",
+    }
+
+    commit_mock = mocker.patch("commitizen.git.commit")
+    commit_mock.return_value = cmd.Command("success", "", b"", b"", 0)
+    success_mock = mocker.patch("commitizen.out.success")
+
+    config.settings["always_signoff"] = True
+    commands.Commit(config, {"extra_cli_args": "-S"})()
+
+    commit_mock.assert_called_once_with(ANY, args="-S -s")
     success_mock.assert_called_once()