feat(changelog): support count_tags option (#599)

* feat: support count_tags option

Signed-off-by: tison <wander4096@gmail.com>

* add fixures tags

Signed-off-by: tison <wander4096@gmail.com>

* fixup

Signed-off-by: tison <wander4096@gmail.com>

* add count_tags to args

Signed-off-by: tison <wander4096@gmail.com>

* add docs

Signed-off-by: tison <wander4096@gmail.com>

* run cargo fmt

Signed-off-by: tison <wander4096@gmail.com>

* fixup default to true

Signed-off-by: tison <wander4096@gmail.com>

* docs(website): update documentation about count_tags

---------

Signed-off-by: tison <wander4096@gmail.com>
Co-authored-by: Orhun Parmaksız <orhunparmaksiz@gmail.com>

.github/fixtures/test-invert-ignore-tags/cliff.toml

@@ -0,0 +1,34 @@
+[changelog]
+# changelog header
+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") }}] - {{ timestamp | date(format="%Y-%m-%d") }}
+{% 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
+
+[git]
+# regex for skipping tags
+skip_tags = "v0.1.0-beta.1"
+# regex for ignoring tags
+ignore_tags = "v.*-beta.*"
+count_tags = "v0.2.0"

.github/fixtures/test-invert-ignore-tags/commit.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -e
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:45" git commit --allow-empty -m "feat: add skip feature"
+git tag v0.1.0-beta.1
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:46" git commit --allow-empty -m "feat: add feature 1"
+GIT_COMMITTER_DATE="2021-01-23 01:23:47" git commit --allow-empty -m "feat: fix feature 1"
+git tag v0.1.0
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:48" git commit --allow-empty -m "feat: add feature 2"
+git tag v0.2.0-beta.1
+
+GIT_COMMITTER_DATE="2021-01-23 01:23:49" git commit --allow-empty -m "feat: add feature 3"
+git tag v0.2.0

.github/fixtures/test-invert-ignore-tags/expected.md

@@ -0,0 +1,14 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [0.2.0] - 2021-01-23
+
+### Feat
+
+- Add feature 1
+- Fix feature 1
+- Add feature 2
+- Add feature 3
+
+<!-- generated by git-cliff -->

.github/workflows/test-fixtures.yml

@@ -22,6 +22,7 @@ jobs:
           - fixtures-name: test-gitea-integration
           - fixtures-name: test-bitbucket-integration
           - fixtures-name: test-ignore-tags
+          - fixtures-name: test-invert-ignore-tags
           - fixtures-name: test-topo-order
             command: --latest
           - fixtures-name: test-date-order

git-cliff-core/src/changelog.rs

@@ -784,6 +784,7 @@ mod test {
 				tag_pattern:              None,
 				skip_tags:                Regex::new("v3.*").ok(),
 				ignore_tags:              None,
+				count_tags:               None,
 				topo_order:               Some(false),
 				sort_commits:             Some(String::from("oldest")),
 				link_parsers:             None,

git-cliff-core/src/config.rs

@@ -109,6 +109,9 @@ pub struct GitConfig {
 	/// Regex to ignore matched tags.
 	#[serde(with = "serde_regex", default)]
 	pub ignore_tags:              Option<Regex>,
+	/// Regex to count matched tags.
+	#[serde(with = "serde_regex", default)]
+	pub count_tags:               Option<Regex>,
 	/// Whether to sort tags topologically.
 	pub topo_order:               Option<bool>,
 	/// Sorting of the commits inside sections.

git-cliff-core/tests/integration_test.rs

@@ -118,6 +118,7 @@ fn generate_changelog() -> Result<()> {
 		tag_pattern:              None,
 		skip_tags:                None,
 		ignore_tags:              None,
+		count_tags:               None,
 		topo_order:               None,
 		sort_commits:             None,
 		link_parsers:             Some(vec![

git-cliff/src/args.rs

@@ -154,6 +154,9 @@ pub struct Opt {
 	/// Sets the tags to ignore in the changelog.
 	#[arg(long, env = "GIT_CLIFF_IGNORE_TAGS", value_name = "PATTERN")]
 	pub ignore_tags:      Option<Regex>,
+	/// Sets the tags to count in the changelog.
+	#[arg(long, env = "GIT_CLIFF_COUNT_TAGS", value_name = "PATTERN")]
+	pub count_tags:       Option<Regex>,
 	/// Sets commits that will be skipped in the changelog.
 	#[arg(
 		long,

git-cliff/src/lib.rs

@@ -86,6 +86,7 @@ fn process_repository<'a>(
 	let mut tags = repository.tags(&config.git.tag_pattern, args.topo_order)?;
 	let skip_regex = config.git.skip_tags.as_ref();
 	let ignore_regex = config.git.ignore_tags.as_ref();
+	let count_tags = config.git.count_tags.as_ref();
 	tags.retain(|_, tag| {
 		let name = &tag.name;
 
@@ -95,6 +96,14 @@ fn process_repository<'a>(
 			return true;
 		}
 
+		let count = count_tags.map_or(true, |r| {
+			let count_tag = r.is_match(name);
+			if count_tag {
+				trace!("Counting release: {}", name)
+			}
+			count_tag
+		});
+
 		let ignore = ignore_regex.is_some_and(|r| {
 			if r.as_str().trim().is_empty() {
 				return false;
@@ -106,7 +115,8 @@ fn process_repository<'a>(
 			}
 			ignore_tag
 		});
-		!ignore
+
+		count && !ignore
 	});
 
 	if !config.remote.github.is_set() {
@@ -508,6 +518,9 @@ pub fn run(mut args: Opt) -> Result<()> {
 	if args.ignore_tags.is_some() {
 		config.git.ignore_tags.clone_from(&args.ignore_tags);
 	}
+	if args.count_tags.is_some() {
+		config.git.count_tags.clone_from(&args.count_tags);
+	}
 	// Process the repositories.
 	let repositories = args.repository.clone().unwrap_or(vec![env::current_dir()?]);
 	let mut releases = Vec::<Release>::new();

website/docs/configuration/git.md

@@ -200,12 +200,28 @@ A regex for skip processing the matched tags.
 
 A regex for ignore processing the matched tags.
 
+While `skip_tags` drop commits from the changelog, `ignore_tags` include ignored commits into the next tag.
+
+:::note
+
+Note that if a commit has multiple tags, any matched tag will result in all associated tags being ignored, including those not explicitly matched by the regex. This is because git-cliff processes tags at the commit level rather than individually.
+For more details, you can view the discussion [here](https://github.com/orhun/git-cliff/discussions/707).
+
+:::
+
 This value can be also overridden with using the `--ignore-tags` argument.
 
-While `skip_tags` drop commits from the changelog, `ignore_tags` include ignored commits into the next tag.
+### count_tags
+
+A regex for _counting in_ the matched tags in the final result.
+
+:::info
+
+`count_tags` work like an inverted version of `ignore_tags`, that include all the commits but only count the specific tags.
+
+:::
 
-* Note that if a commit has multiple tags, any matched tag will result in all associated tags being ignored, including those not explicitly matched by the regex. This is because git-cliff processes tags at the commit level rather than individually.
-For more details, you can view the discussion [here](https://github.com/orhun/git-cliff/discussions/707)
+This value can be also overridden with using the `--count-tags` argument.
 
 ### topo_order
 

website/docs/usage/args.md

@@ -37,6 +37,7 @@ git-cliff [FLAGS] [OPTIONS] [--] [RANGE]
     --with-commit <MSG>...         Sets custom commit messages to include in the changelog [env: GIT_CLIFF_WITH_COMMIT=]
     --with-tag-message [<MSG>]     Sets custom message for the latest release [env: GIT_CLIFF_WITH_TAG_MESSAGE=]
     --ignore-tags <PATTERN>        Sets the tags to ignore in the changelog [env: GIT_CLIFF_IGNORE_TAGS=]
+    --count-tags <PATTERN>         Sets the tags to count in the changelog [env: GIT_CLIFF_COUNT_TAGS=]
     --skip-commit <SHA1>...        Sets commits that will be skipped in the changelog [env: GIT_CLIFF_SKIP_COMMIT=]
 -p, --prepend <PATH>               Prepends entries to the given changelog file [env: GIT_CLIFF_PREPEND=]
 -o, --output [<PATH>]              Writes output to the given file [env: GIT_CLIFF_OUTPUT=]