feat(bump): functionality to add build-metadata to version string

commitizen/cli.py

@@ -308,6 +308,11 @@ def __call__(
                         "help": "bump to the given version (e.g: 1.5.3)",
                         "metavar": "MANUAL_VERSION",
                     },
+                    {
+                        "name": ["--build-metadata"],
+                        "help": "Add additional build-metadata to the version-number",
+                        "default": None,
+                    },
                 ],
             },
             {

commitizen/commands/bump.py

@@ -152,6 +152,7 @@ def __call__(self):  # noqa: C901
         is_files_only: bool | None = self.arguments["files_only"]
         is_local_version: bool | None = self.arguments["local_version"]
         manual_version = self.arguments["manual_version"]
+        build_metadata = self.arguments["build_metadata"]
 
         if manual_version:
             if increment:
@@ -168,6 +169,11 @@ def __call__(self):  # noqa: C901
                     "--local-version cannot be combined with MANUAL_VERSION"
                 )
 
+            if build_metadata:
+                raise NotAllowed(
+                    "--build-metadata cannot be combined with MANUAL_VERSION"
+                )
+
             if major_version_zero:
                 raise NotAllowed(
                     "--major-version-zero cannot be combined with MANUAL_VERSION"
@@ -184,6 +190,12 @@ def __call__(self):  # noqa: C901
                     f"--major-version-zero is meaningless for current version {current_version}"
                 )
 
+        if build_metadata:
+            if is_local_version:
+                raise NotAllowed(
+                    "--local-version cannot be combined with --build-metadata"
+                )
+
         current_tag_version: str = bump.normalize_tag(
             current_version,
             tag_format=tag_format,
@@ -237,6 +249,7 @@ def __call__(self):  # noqa: C901
                 prerelease_offset=prerelease_offset,
                 devrelease=devrelease,
                 is_local_version=is_local_version,
+                build_metadata=build_metadata,
             )
 
         new_tag_version = bump.normalize_tag(

commitizen/commands/changelog.py

@@ -20,6 +20,7 @@
 from commitizen.changelog_formats import get_changelog_format
 from commitizen.git import GitTag, smart_open
 from commitizen.version_schemes import get_version_scheme
+from commitizen.cz.utils import strip_local_version
 
 
 class Changelog:
@@ -98,7 +99,12 @@ def _find_incremental_rev(self, latest_version: str, tags: list[GitTag]) -> str:
         """
         SIMILARITY_THRESHOLD = 0.89
         tag_ratio = map(
-            lambda tag: (SequenceMatcher(None, latest_version, tag.name).ratio(), tag),
+            lambda tag: (
+                SequenceMatcher(
+                    None, latest_version, strip_local_version(tag.name)
+                ).ratio(),
+                tag,
+            ),
             tags,
         )
         try:
@@ -169,7 +175,9 @@ def __call__(self):
                     tag_format=self.tag_format,
                     scheme=self.scheme,
                 )
-                start_rev = self._find_incremental_rev(latest_tag_version, tags)
+                start_rev = self._find_incremental_rev(
+                    strip_local_version(latest_tag_version), tags
+                )
 
         if self.rev_range:
             start_rev, end_rev = changelog.get_oldest_and_newest_rev(

commitizen/cz/utils.py

@@ -1,3 +1,5 @@
+import re
+
 from commitizen.cz import exceptions
 
 
@@ -9,3 +11,7 @@ def required_validator(answer, msg=None):
 
 def multiple_line_breaker(answer, sep="|"):
     return "\n".join(line.strip() for line in answer.split(sep) if line)
+
+
+def strip_local_version(version: str) -> str:
+    return re.sub(r"\+.+", "", version)

commitizen/version_schemes.py

@@ -166,6 +166,17 @@ def generate_devrelease(self, devrelease: int | None) -> str:
 
         return f"dev{devrelease}"
 
+    def generate_build_metadata(self, build_metadata: str | None) -> str:
+        """Generate build-metadata
+
+        Build-metadata (local version) is not used in version calculations
+        but added after + statically.
+        """
+        if build_metadata is None:
+            return ""
+
+        return f"+{build_metadata}"
+
     def increment_base(self, increment: str | None = None) -> str:
         prev_release = list(self.release)
         increments = [MAJOR, MINOR, PATCH]
@@ -195,6 +206,7 @@ def bump(
         prerelease_offset: int = 0,
         devrelease: int | None = None,
         is_local_version: bool = False,
+        build_metadata: str | None = None,
     ) -> Self:
         """Based on the given increment a proper semver will be generated.
 
@@ -215,8 +227,9 @@ def bump(
             base = self.increment_base(increment)
             dev_version = self.generate_devrelease(devrelease)
             pre_version = self.generate_prerelease(prerelease, offset=prerelease_offset)
+            build_metadata = self.generate_build_metadata(build_metadata)
             # TODO: post version
-            return self.scheme(f"{base}{pre_version}{dev_version}")  # type: ignore
+            return self.scheme(f"{base}{pre_version}{dev_version}{build_metadata}")  # type: ignore
 
 
 class Pep440(BaseVersion):

docs/bump.md

@@ -55,7 +55,7 @@ $ cz bump --help
 usage: cz bump [-h] [--dry-run] [--files-only] [--local-version] [--changelog] [--no-verify] [--yes] [--tag-format TAG_FORMAT]
                [--bump-message BUMP_MESSAGE] [--prerelease {alpha,beta,rc}] [--devrelease DEVRELEASE] [--increment {MAJOR,MINOR,PATCH}]
                [--check-consistency] [--annotated-tag] [--gpg-sign] [--changelog-to-stdout] [--git-output-to-stderr] [--retry] [--major-version-zero]
-               [--prerelease-offset PRERELEASE_OFFSET] [--version-scheme {semver,pep440}] [--version-type {semver,pep440}]
+               [--prerelease-offset PRERELEASE_OFFSET] [--version-scheme {semver,pep440}] [--version-type {semver,pep440}] [--build-metadata BUILD_METADATA]
                [MANUAL_VERSION]
 
 positional arguments:
@@ -95,6 +95,8 @@ options:
                         choose version scheme
   --version-type {semver,pep440}
                         Deprecated, use --version-scheme
+  --build-metadata {BUILD_METADATA}
+                        additional metadata in the version string
 ```
 
 ### `--files-only`
@@ -264,6 +266,25 @@ cz bump --changelog --extra key=value -e short="quoted value"
 
 See [the template customization section](customization.md#customizing-the-changelog-template).
 
+### `--build-metadata`
+
+Provides a way to specify additional metadata in the version string. This parameter is not compatible with `--local-version` as it uses the same part of the version string.
+
+```bash
+cz bump --build-metadata yourmetadata
+```
+
+Will create a version like `1.1.2+yourmetadata`.
+This can be useful for multiple things
+* Git hash in version
+* Labeling the version with additional metadata.
+
+Note that Commitizen ignores everything after `+` when it bumps the version. It is therefore safe to write different build-metadata between versions.
+
+You should normally not use this functionality, but if you decide to do, keep in mind that
+* Version `1.2.3+a`, and `1.2.3+b` are the same version! Tools should not use the string after `+` for version calculation. This is probably not a guarantee (example in helm) even tho it is in the spec.
+* It might be problematic having the metadata in place when doing upgrades depending on what tool you use.
+
 ## Avoid raising errors
 
 Some situations from commitizen raise an exit code different than 0.

tests/test_bump_create_commit_message.py

@@ -99,3 +99,50 @@ def test_bump_pre_commit_changelog_fails_always(mocker: MockFixture, freezer, re
     cmd.run("pre-commit install")
     with pytest.raises(exceptions.BumpCommitFailedError):
         cli.main()
+
+
+@pytest.mark.usefixtures("tmp_commitizen_project")
+def test_bump_with_build_metadata(mocker: MockFixture, freezer):
+    def _add_entry(test_str: str, args: list):
+        Path(test_str).write_text("")
+        cmd.run("git add -A")
+        cmd.run(f'git commit -m "fix: test-{test_str}"')
+        cz_args = ["cz", "bump", "--changelog", "--yes"] + args
+        mocker.patch.object(sys, "argv", cz_args)
+        cli.main()
+
+    freezer.move_to("2024-01-01")
+
+    _add_entry("a", ["--build-metadata", "a.b.c"])
+    _add_entry("b", [])
+    _add_entry("c", ["--build-metadata", "alongmetadatastring"])
+    _add_entry("d", [])
+
+    # Pre-commit fixed last line adding extra indent and "\" char
+    assert Path("CHANGELOG.md").read_text() == dedent(
+        """\
+        ## 0.1.4 (2024-01-01)
+
+        ### Fix
+
+        - test-d
+
+        ## 0.1.3+alongmetadatastring (2024-01-01)
+
+        ### Fix
+
+        - test-c
+
+        ## 0.1.2 (2024-01-01)
+
+        ### Fix
+
+        - test-b
+
+        ## 0.1.1+a.b.c (2024-01-01)
+
+        ### Fix
+
+        - test-a
+        """
+    )