refactor: Make tag_format properly default to $version

We've been using this default already in `normalize_tag`,
but setting this value in the settings dict is cleaner.

Author: robertschweizer

Diff for: commitizen/bump.py

@@ -101,7 +101,7 @@ def _version_to_regex(version: str) -> str:
 
 def normalize_tag(
     version: Version | str,
-    tag_format: str | None = None,
+    tag_format: str,
     scheme: VersionScheme | None = None,
 ) -> str:
     """The tag and the software version might be different.
@@ -118,9 +118,6 @@ def normalize_tag(
     scheme = scheme or DEFAULT_SCHEME
     version = scheme(version) if isinstance(version, str) else version
 
-    if not tag_format:
-        return str(version)
-
     major, minor, patch = version.release
     prerelease = version.prerelease or ""
 

Diff for: commitizen/commands/changelog.py

@@ -57,8 +57,8 @@ def __init__(self, config: BaseConfig, args):
             or defaults.change_type_order
         )
         self.rev_range = args.get("rev_range")
-        self.tag_format = args.get("tag_format") or self.config.settings.get(
-            "tag_format"
+        self.tag_format: str = (
+            args.get("tag_format") or self.config.settings["tag_format"]
         )
         self.merge_prerelease = args.get(
             "merge_prerelease"

Diff for: commitizen/commands/init.py

@@ -10,7 +10,7 @@
 from commitizen.__version__ import __version__
 from commitizen.config import BaseConfig, JsonConfig, TomlConfig, YAMLConfig
 from commitizen.cz import registry
-from commitizen.defaults import config_files
+from commitizen.defaults import DEFAULT_SETTINGS, config_files
 from commitizen.exceptions import InitFailedError, NoAnswersError
 from commitizen.git import get_latest_tag_name, get_tag_names, smart_open
 from commitizen.version_schemes import KNOWN_SCHEMES, Version, get_version_scheme
@@ -203,14 +203,15 @@ def _ask_tag_format(self, latest_tag) -> str:
                 f'Is "{tag_format}" the correct tag format?', style=self.cz.style
             ).unsafe_ask()
 
+        default_format = DEFAULT_SETTINGS["tag_format"]
         if not is_correct_format:
             tag_format = questionary.text(
-                'Please enter the correct version format: (default: "$version")',
+                f'Please enter the correct version format: (default: "{default_format}")',
                 style=self.cz.style,
             ).unsafe_ask()
 
             if not tag_format:
-                tag_format = "$version"
+                tag_format = default_format
         return tag_format
 
     def _ask_version_provider(self) -> str:

Diff for: commitizen/defaults.py

@@ -39,7 +39,7 @@ class Settings(TypedDict, total=False):
     version_provider: str | None
     version_scheme: str | None
     version_type: str | None
-    tag_format: str | None
+    tag_format: str
     bump_message: str | None
     allow_abort: bool
     allowed_prefixes: list[str]
@@ -73,7 +73,7 @@ class Settings(TypedDict, total=False):
     "version_files": [],
     "version_provider": "commitizen",
     "version_scheme": None,
-    "tag_format": None,  # example v$version
+    "tag_format": "$version",  # example v$version
     "bump_message": None,  # bumped v$current_version to $new_version
     "allow_abort": False,
     "allowed_prefixes": [

Diff for: commitizen/providers.py

@@ -195,8 +195,8 @@ class ScmProvider(VersionProvider):
 
     def _tag_format_matcher(self) -> Callable[[str], str | None]:
         version_scheme = get_version_scheme(self.config)
-        pattern = self.config.settings.get("tag_format")
-        if pattern in (None, "$version"):
+        pattern = self.config.settings["tag_format"]
+        if pattern == "$version":
             pattern = version_scheme.parser.pattern
         for var, tag_pattern in self.TAG_FORMAT_REGEXS.items():
             pattern = pattern.replace(var, tag_pattern)

Diff for: docs/bump.md

@@ -326,7 +326,7 @@ These are used in:
   * If `--incremental`: Using latest version found in the changelog, scan existing Git tags with 89\% similarity match. 
   * `--rev-range` is converted to Git tag names with `tag_format` before searching Git history.
 * If the `scm` `version_provider` is used, it uses different regexes to find the previous version tags:
-  * If `tag_format` is unset or set to `$version`: `VersionProtocol.parser` (allows `v` prefix)
+  * If `tag_format` is set to `$version` (default): `VersionProtocol.parser` (allows `v` prefix)
   * If `tag_format` is set: Custom regex similar to SemVer (not as lenient as PEP440 e.g. on dev-releases)
 
 Commitizen supports 2 types of formats, a simple and a more complex.
@@ -346,7 +346,7 @@ In your `pyproject.toml` or `.cz.toml`
 tag_format = "v$major.$minor.$patch$prerelease"
 ```
 
-The variables must be preceded by a `$` sign.
+The variables must be preceded by a `$` sign. Default is `$version`.
 
 Supported variables:
 

Diff for: docs/config.md

@@ -46,7 +46,7 @@ Select a version scheme from the following options [`pep440`, `semver`]. Useful
 
 Type: `str`
 
-Default: `None`
+Default: `$version`
 
 Format for the git tag, useful for old projects, that use a convention like `"v1.2.1"`. [Read more][tag_format]
 

Diff for: tests/test_conf.py

@@ -46,7 +46,7 @@
     "version": "1.0.0",
     "version_provider": "commitizen",
     "version_scheme": None,
-    "tag_format": None,
+    "tag_format": "$version",
     "bump_message": None,
     "allow_abort": False,
     "allowed_prefixes": ["Merge", "Revert", "Pull request", "fixup!", "squash!"],
@@ -69,7 +69,7 @@
     "version": "2.0.0",
     "version_provider": "commitizen",
     "version_scheme": None,
-    "tag_format": None,
+    "tag_format": "$version",
     "bump_message": None,
     "allow_abort": False,
     "allowed_prefixes": ["Merge", "Revert", "Pull request", "fixup!", "squash!"],

Diff for: tests/test_version_providers.py

@@ -175,11 +175,8 @@ def test_file_providers(
 @pytest.mark.parametrize(
     "tag_format,tag,expected_version",
     (
-        # If tag_format is None or $version, version_scheme.parser is used.
+        # If tag_format is $version (the default), version_scheme.parser is used.
         # Its DEFAULT_VERSION_PARSER allows a v prefix, but matches PEP440 otherwise.
-        (None, "0.1.0", "0.1.0"),
-        (None, "v0.1.0", "0.1.0"),
-        (None, "no-match-because-version-scheme-is-strict", "0.0.0"),
         ("$version", "no-match-because-version-scheme-is-strict", "0.0.0"),
         ("$version", "0.1.0", "0.1.0"),
         ("$version", "v0.1.0", "0.1.0"),
@@ -202,7 +199,7 @@ def test_file_providers(
 )
 @pytest.mark.usefixtures("tmp_git_project")
 def test_scm_provider(
-    config: BaseConfig, tag_format: str | None, tag: str, expected_version: str
+    config: BaseConfig, tag_format: str, tag: str, expected_version: str
 ):
     create_file_and_commit("test: fake commit")
     create_tag(tag)