Use a ClickExecption when alerting about missing pattern

Author: cburkert

gitprivacy/gitprivacy.py

@@ -48,7 +48,7 @@ def get_crypto(self) -> Optional[EncryptionProvider]:
 
     def get_dateredacter(self) -> DateRedacter:
         if self.mode == "reduce" and self.pattern == '':
-            raise click.UsageError(click.wrap_text(
+            raise click.ClickException(click.wrap_text(
                 "Missing pattern configuration. Set a reduction pattern using\n"  # noqa: E501
                 "\n"
                 f"    git config {self.SECTION}.pattern <pattern>\n"

tests/test_gitprivacy.py

@@ -94,7 +94,7 @@ def test_redatenoconfig(self):
             self.setUpRepo()
             self.addCommit("a")
             result = self.invoke('redate')
-            self.assertEqual(result.exit_code, 2)
+            self.assertEqual(result.exit_code, 1)
 
     def test_redate(self):
         with self.runner.isolated_filesystem():