feat(changelog): add support for any commit rule system

Author: woile

commitizen/cz/base.py

@@ -9,8 +9,6 @@
 class BaseCommitizen(metaclass=ABCMeta):
     bump_pattern: Optional[str] = None
     bump_map: Optional[dict] = None
-    changelog_pattern: Optional[str] = None
-    changelog_map: Optional[dict] = None
     default_style_config: List[Tuple[str, str]] = [
         ("qmark", "fg:#ff9d00 bold"),
         ("question", "bold"),
@@ -23,7 +21,13 @@ class BaseCommitizen(metaclass=ABCMeta):
         ("text", ""),
         ("disabled", "fg:#858585 italic"),
     ]
-    commit_parser: Optional[str] = None
+
+    # The whole subject will be parsed as message by default
+    # This allows supporting changelog for any rule system.
+    # It can be modified per rule
+    commit_parser: Optional[str] = r"(?P<message>.*)"
+    changelog_pattern: Optional[str] = r".*"
+    changelog_map: Optional[dict] = None  # TODO: Use it
 
     def __init__(self, config: BaseConfig):
         self.config = config

commitizen/templates/keep_a_changelog_template.j2

@@ -11,7 +11,7 @@
 {% for change in changes %}
 {% if change.scope %}
 - **{{ change.scope }}**: {{ change.message }}
-{% else %}
+{% elif change.message %}
 - {{ change.message }}
 {% endif %}
 {% endfor %}

tests/commands/test_changelog_command.py

@@ -41,14 +41,20 @@ def test_changlog_from_version_zero_point_two(mocker, capsys):
 
 
 @pytest.mark.usefixtures("tmp_commitizen_project")
-def test_changlog_with_unsupported_cz(mocker, capsys):
+def test_changlog_with_different_cz(mocker, capsys):
+    create_file_and_commit("JRA-34 #comment corrected indent issue")
+    create_file_and_commit("JRA-35 #time 1w 2d 4h 30m Total work logged")
+
     testargs = ["cz", "-n", "cz_jira", "changelog", "--dry-run"]
     mocker.patch.object(sys, "argv", testargs)
 
     with pytest.raises(SystemExit):
         cli.main()
-    out, err = capsys.readouterr()
-    assert "'cz_jira' rule does not support changelog" in err
+    out, _ = capsys.readouterr()
+    assert (
+        out
+        == "\n## Unreleased \n\n\n- JRA-35 #time 1w 2d 4h 30m Total work logged\n- JRA-34 #comment corrected indent issue\n\n"
+    )
 
 
 @pytest.mark.usefixtures("tmp_commitizen_project")