fix(changelog): generating changelog after a pre-release

Closes #357

commitizen/defaults.py

@@ -43,4 +43,4 @@
 change_type_order = ["BREAKING CHANGE", "feat", "fix", "refactor", "perf"]
 
 commit_parser = r"^(?P<change_type>feat|fix|refactor|perf|BREAKING CHANGE)(?:\((?P<scope>[^()\r\n]*)\)|\()?(?P<breaking>!)?:\s(?P<message>.*)?"  # noqa
-version_parser = r"(?P<version>([0-9]+)\.([0-9]+)\.([0-9]+)(?:-([0-9A-Za-z-]+(?:\.[0-9A-Za-z-]+)*))?(?:\+[0-9A-Za-z-]+)?)"
+version_parser = r"(?P<version>([0-9]+)\.([0-9]+)\.([0-9]+)(?:-([0-9A-Za-z-]+(?:\.[0-9A-Za-z-]+)*))?(?:\+[0-9A-Za-z-]+)?(\w+)?)"

tests/commands/test_changelog_command.py

@@ -480,3 +480,36 @@ def test_changelog_incremental_keep_a_changelog_sample_with_annotated_tag(
         out = f.read()
 
     file_regression.check(out, extension=".md")
+
+
+@pytest.mark.parametrize("test_input", ["rc", "alpha", "beta"])
+@pytest.mark.usefixtures("tmp_commitizen_project")
+def test_changelog_incremental_with_release_candidate_version(
+    mocker, capsys, changelog_path, file_regression, test_input
+):
+    """Fix #357"""
+    with open(changelog_path, "w") as f:
+        f.write(KEEP_A_CHANGELOG)
+    create_file_and_commit("irrelevant commit")
+    git.tag("1.0.0", annotated=True)
+
+    create_file_and_commit("feat: add new output")
+    create_file_and_commit("fix: output glitch")
+
+    testargs = ["cz", "bump", "--changelog", "--prerelease", test_input, "--yes"]
+    mocker.patch.object(sys, "argv", testargs)
+    cli.main()
+
+    create_file_and_commit("fix: mama gotta work")
+    create_file_and_commit("feat: add more stuff")
+    create_file_and_commit("Merge into master")
+
+    testargs = ["cz", "changelog", "--incremental"]
+
+    mocker.patch.object(sys, "argv", testargs)
+    cli.main()
+
+    with open(changelog_path, "r") as f:
+        out = f.read()
+
+    file_regression.check(out, extension=".md")

tests/commands/test_changelog_command/test_changelog_incremental_with_release_candidate_version_alpha_.md

@@ -0,0 +1,40 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Unreleased
+
+### Feat
+
+- add more stuff
+
+### Fix
+
+- mama gotta work
+
+## 0.2.0a0 (2021-06-11)
+
+### Fix
+
+- output glitch
+
+### Feat
+
+- add new output
+
+## [1.0.0] - 2017-06-20
+### Added
+- New visual identity by [@tylerfortune8](https://github.com/tylerfortune8).
+- Version navigation.
+
+### Changed
+- Start using "changelog" over "change log" since it's the common usage.
+
+### Removed
+- Section about "changelog" vs "CHANGELOG".
+
+## [0.3.0] - 2015-12-03
+### Added
+- RU translation from [@aishek](https://github.com/aishek).

tests/commands/test_changelog_command/test_changelog_incremental_with_release_candidate_version_beta_.md

@@ -0,0 +1,40 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Unreleased
+
+### Feat
+
+- add more stuff
+
+### Fix
+
+- mama gotta work
+
+## 0.2.0b0 (2021-06-11)
+
+### Fix
+
+- output glitch
+
+### Feat
+
+- add new output
+
+## [1.0.0] - 2017-06-20
+### Added
+- New visual identity by [@tylerfortune8](https://github.com/tylerfortune8).
+- Version navigation.
+
+### Changed
+- Start using "changelog" over "change log" since it's the common usage.
+
+### Removed
+- Section about "changelog" vs "CHANGELOG".
+
+## [0.3.0] - 2015-12-03
+### Added
+- RU translation from [@aishek](https://github.com/aishek).

tests/commands/test_changelog_command/test_changelog_incremental_with_release_candidate_version_rc_.md

@@ -0,0 +1,40 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Unreleased
+
+### Feat
+
+- add more stuff
+
+### Fix
+
+- mama gotta work
+
+## 0.2.0rc0 (2021-06-11)
+
+### Fix
+
+- output glitch
+
+### Feat
+
+- add new output
+
+## [1.0.0] - 2017-06-20
+### Added
+- New visual identity by [@tylerfortune8](https://github.com/tylerfortune8).
+- Version navigation.
+
+### Changed
+- Start using "changelog" over "change log" since it's the common usage.
+
+### Removed
+- Section about "changelog" vs "CHANGELOG".
+
+## [0.3.0] - 2015-12-03
+### Added
+- RU translation from [@aishek](https://github.com/aishek).