feat(bump): support bumping to a specific semver type (#744)

* feat: support bump a specific version type

* let --bump accept optional enum

* doc: update document for --bump

* test: add bump version fixtures tests

* refactor: polish implementation

* refactor: fix typo

---------

Co-authored-by: Orhun Parmaksız <orhunparmaksiz@gmail.com>

.github/fixtures/test-bump-version-major/cliff.toml

@@ -0,0 +1,27 @@
+[changelog]
+# template for the changelog footer
+header = """
+# Changelog\n
+All notable changes to this project will be documented in this file.\n
+"""
+# template for the changelog body
+# https://keats.github.io/tera/docs/#introduction
+body = """
+{% if version %}\
+    ## [{{ version | trim_start_matches(pat="v") }}]
+{% else %}\
+    ## [unreleased]
+{% endif %}\
+{% for group, commits in commits | group_by(attribute="group") %}
+    ### {{ group | upper_first }}
+    {% for commit in commits %}
+        - {% if commit.breaking %}[**breaking**] {% endif %}{{ commit.message | upper_first }}\
+    {% endfor %}
+{% endfor %}\n
+"""
+# template for the changelog footer
+footer = """
+<!-- generated by git-cliff -->
+"""
+# remove the leading and trailing whitespace from the templates
+trim = true

.github/fixtures/test-bump-version-major/commit.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:45" git commit --allow-empty -m "feat: add feature 1"
+GIT_COMMITTER_DATE="2021-01-23 01:23:45" git commit --allow-empty -m "feat: add feature 2"
+git tag v0.1.0
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:46" git commit --allow-empty -m "fix: fix feature 1"
+GIT_COMMITTER_DATE="2021-01-23 01:23:46" git commit --allow-empty -m "fix: fix feature 2"

.github/fixtures/test-bump-version-major/expected.md

@@ -0,0 +1,19 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [1.0.0]
+
+### Fix
+
+- Fix feature 1
+- Fix feature 2
+
+## [0.1.0]
+
+### Feat
+
+- Add feature 1
+- Add feature 2
+
+<!-- generated by git-cliff -->

.github/fixtures/test-bump-version-minor/cliff.toml

@@ -0,0 +1,27 @@
+[changelog]
+# template for the changelog footer
+header = """
+# Changelog\n
+All notable changes to this project will be documented in this file.\n
+"""
+# template for the changelog body
+# https://keats.github.io/tera/docs/#introduction
+body = """
+{% if version %}\
+    ## [{{ version | trim_start_matches(pat="v") }}]
+{% else %}\
+    ## [unreleased]
+{% endif %}\
+{% for group, commits in commits | group_by(attribute="group") %}
+    ### {{ group | upper_first }}
+    {% for commit in commits %}
+        - {% if commit.breaking %}[**breaking**] {% endif %}{{ commit.message | upper_first }}\
+    {% endfor %}
+{% endfor %}\n
+"""
+# template for the changelog footer
+footer = """
+<!-- generated by git-cliff -->
+"""
+# remove the leading and trailing whitespace from the templates
+trim = true

.github/fixtures/test-bump-version-minor/commit.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:45" git commit --allow-empty -m "feat: add feature 1"
+GIT_COMMITTER_DATE="2021-01-23 01:23:45" git commit --allow-empty -m "feat: add feature 2"
+git tag v0.1.0
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:46" git commit --allow-empty -m "feat!: add breaking feature"
+GIT_COMMITTER_DATE="2021-01-23 01:23:46" git commit --allow-empty -m "fix: fix feature 2"

.github/fixtures/test-bump-version-minor/expected.md

@@ -0,0 +1,22 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [0.2.0]
+
+### Feat
+
+- [**breaking**] Add breaking feature
+
+### Fix
+
+- Fix feature 2
+
+## [0.1.0]
+
+### Feat
+
+- Add feature 1
+- Add feature 2
+
+<!-- generated by git-cliff -->

.github/fixtures/test-bump-version-patch/cliff.toml

@@ -0,0 +1,27 @@
+[changelog]
+# template for the changelog footer
+header = """
+# Changelog\n
+All notable changes to this project will be documented in this file.\n
+"""
+# template for the changelog body
+# https://keats.github.io/tera/docs/#introduction
+body = """
+{% if version %}\
+    ## [{{ version | trim_start_matches(pat="v") }}]
+{% else %}\
+    ## [unreleased]
+{% endif %}\
+{% for group, commits in commits | group_by(attribute="group") %}
+    ### {{ group | upper_first }}
+    {% for commit in commits %}
+        - {% if commit.breaking %}[**breaking**] {% endif %}{{ commit.message | upper_first }}\
+    {% endfor %}
+{% endfor %}\n
+"""
+# template for the changelog footer
+footer = """
+<!-- generated by git-cliff -->
+"""
+# remove the leading and trailing whitespace from the templates
+trim = true

.github/fixtures/test-bump-version-patch/commit.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -e
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:45" git commit --allow-empty -m "feat: add feature 1"
+GIT_COMMITTER_DATE="2021-01-23 01:23:45" git commit --allow-empty -m "feat: add feature 2"
+git tag v0.1.0
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:46" git commit --allow-empty -m "feat!: add breaking feature"
+GIT_COMMITTER_DATE="2021-01-23 01:23:46" git commit --allow-empty -m "fix: fix feature 2"

.github/fixtures/test-bump-version-patch/expected.md

@@ -0,0 +1,22 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [0.1.1]
+
+### Feat
+
+- [**breaking**] Add breaking feature
+
+### Fix
+
+- Fix feature 2
+
+## [0.1.0]
+
+### Feat
+
+- Add feature 1
+- Add feature 2
+
+<!-- generated by git-cliff -->

.github/workflows/test-fixtures.yml

@@ -38,6 +38,12 @@ jobs:
           - fixtures-name: test-split-commits
           - fixtures-name: test-bump-version
             command: --bump
+          - fixtures-name: test-bump-version-major
+            command: --bump major
+          - fixtures-name: test-bump-version-minor
+            command: --bump minor
+          - fixtures-name: test-bump-version-patch
+            command: --bump patch
           - fixtures-name: test-bump-version-custom-minor
             command: --bump
           - fixtures-name: test-bumped-version

git-cliff-core/src/config.rs

@@ -174,6 +174,17 @@ impl Remote {
 	}
 }
 
+/// Version bump type.
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, Eq, PartialEq)]
+pub enum BumpType {
+	/// Bump major version.
+	Major,
+	/// Bump minor version.
+	Minor,
+	/// Bump patch version.
+	Patch,
+}
+
 /// Bump version configuration.
 #[derive(Debug, Default, Clone, Serialize, Deserialize)]
 pub struct Bump {
@@ -218,6 +229,9 @@ pub struct Bump {
 	///
 	/// `commit type` according to the spec is only `[a-zA-Z]+`
 	pub custom_minor_increment_regex: Option<String>,
+
+	/// Force to always bump in major, minor or patch.
+	pub bump_type: Option<BumpType>,
 }
 
 /// Parser for grouping commits.

git-cliff-core/src/release.rs

@@ -1,5 +1,3 @@
-use crate::commit::Commit;
-use crate::config::Bump;
 use crate::error::Result;
 #[cfg(feature = "remote")]
 use crate::remote::{
@@ -8,7 +6,16 @@ use crate::remote::{
 	RemotePullRequest,
 	RemoteReleaseMetadata,
 };
-use next_version::VersionUpdater;
+use crate::{
+	commit::Commit,
+	config::Bump,
+	config::BumpType,
+};
+
+use next_version::{
+	NextVersion,
+	VersionUpdater,
+};
 use semver::Version;
 use serde::{
 	Deserialize,
@@ -124,15 +131,23 @@ impl<'a> Release<'a> {
 						custom_minor_increment_regex,
 					)?;
 				}
-				let next_version = next_version
-					.increment(
-						&semver?,
-						self.commits
-							.iter()
-							.map(|commit| commit.message.trim_end().to_string())
-							.collect::<Vec<String>>(),
-					)
-					.to_string();
+				let next_version = if let Some(bump_type) = &config.bump_type {
+					match bump_type {
+						BumpType::Major => semver?.increment_major().to_string(),
+						BumpType::Minor => semver?.increment_minor().to_string(),
+						BumpType::Patch => semver?.increment_patch().to_string(),
+					}
+				} else {
+					next_version
+						.increment(
+							&semver?,
+							self.commits
+								.iter()
+								.map(|commit| commit.message.trim_end().to_string())
+								.collect::<Vec<String>>(),
+						)
+						.to_string()
+				};
 				if let Some(prefix) = prefix {
 					Ok(format!("{prefix}{next_version}"))
 				} else {
@@ -282,6 +297,7 @@ mod test {
 					initial_tag:                  None,
 					custom_major_increment_regex: None,
 					custom_minor_increment_regex: None,
+					bump_type:                    None,
 				})?;
 			assert_eq!(expected_version, &next_version);
 		}
@@ -305,6 +321,7 @@ mod test {
 					initial_tag:                  None,
 					custom_major_increment_regex: None,
 					custom_minor_increment_regex: None,
+					bump_type:                    None,
 				})?;
 			assert_eq!(expected_version, &next_version);
 		}
@@ -328,6 +345,7 @@ mod test {
 					initial_tag:                  None,
 					custom_major_increment_regex: None,
 					custom_minor_increment_regex: None,
+					bump_type:                    None,
 				})?;
 			assert_eq!(expected_version, &next_version);
 		}
@@ -351,6 +369,7 @@ mod test {
 					initial_tag:                  None,
 					custom_major_increment_regex: None,
 					custom_minor_increment_regex: None,
+					bump_type:                    None,
 				})?
 			);
 		}