fix: respect pre-commit reformats when bumping

Fix #502. Just attempt to commit twice if the 1st commit fails.

Author: yajo

commitizen/commands/bump.py

@@ -209,14 +209,18 @@ def __call__(self):  # noqa: C901
                 },
             )
             changelog_cmd()
-            c = cmd.run(f"git add {changelog_cmd.file_name}")
+            c = cmd.run(f"git add {changelog_cmd.file_name} {' '.join(version_files)}")
 
         self.config.set_key("version", str(new_version))
 
         if is_files_only:
             raise ExpectedExit()
 
         c = git.commit(message, args=self._get_commit_args())
+        if c.return_code != 0 and self.changelog:
+            # Maybe pre-commit reformatted some files? Retry once
+            cmd.run(f"git add {changelog_cmd.file_name} {' '.join(version_files)}")
+            c = git.commit(message, args=self._get_commit_args())
         if c.return_code != 0:
             raise BumpCommitFailedError(f'git.commit error: "{c.err.strip()}"')
         c = git.tag(

tests/test_bump_create_commit_message.py

@@ -1,7 +1,11 @@
+import sys
+from pathlib import Path
+from textwrap import dedent
+
 import pytest
 from packaging.version import Version
 
-from commitizen import bump
+from commitizen import bump, cli, cmd
 
 conversion = [
     (
@@ -20,3 +24,42 @@ def test_create_tag(test_input, expected):
         Version(current_version), Version(new_version), message_template
     )
     assert new_tag == expected
+
+
+def test_bump_pre_commit_changelog(tmp_commitizen_project, mocker, freezer):
+    freezer.move_to("2022-04-01")
+    testargs = ["cz", "bump", "--changelog", "--yes"]
+    mocker.patch.object(sys, "argv", testargs)
+    with tmp_commitizen_project.as_cwd():
+        # Configure prettier as a pre-commit hook
+        Path(".pre-commit-config.yaml").write_text(
+            """
+            repos:
+              - repo: https://github.com/pre-commit/mirrors-prettier
+                rev: v2.6.2
+                hooks:
+                - id: prettier
+                  stages: [commit]
+            """
+        )
+        # Prettier inherits editorconfig
+        Path(".editorconfig").write_text(
+            """
+            [*]
+            indent_size = 4
+            """
+        )
+        cmd.run("git add -A")
+        cmd.run("git commit -m 'fix: _test'")
+        cmd.run("pre-commit install")
+        cli.main()
+        # Pre-commit fixed last line adding extra indent and "\" char
+        assert Path("CHANGELOG.md").read_text() == dedent(
+            """\
+            ## 0.1.1 (2022-04-01)
+
+            ### Fix
+
+            -   \\_test
+            """
+        )