feat(changelog): support count_tags option

.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

@@ -19,6 +19,7 @@ jobs:
           - fixtures-name: new-fixture-template
           - fixtures-name: test-github-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

@@ -666,6 +666,7 @@ 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

@@ -113,6 +113,7 @@ 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/lib.rs

@@ -88,12 +88,23 @@ 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 = tags
 		.into_iter()
 		.filter(|(_, name)| {
 			// Keep skip tags to drop commits in the later stage.
 			let skip = skip_regex.map(|r| r.is_match(name)).unwrap_or_default();
 
+			let count = count_tags
+				.map(|r| {
+					let count_tag = r.is_match(name);
+					if count_tag {
+						trace!("Counting release: {}", name)
+					}
+					count_tag
+				})
+				.unwrap_or(true);
+
 			let ignore = ignore_regex
 				.map(|r| {
 					if r.as_str().trim().is_empty() {
@@ -108,7 +119,7 @@ fn process_repository<'a>(
 				})
 				.unwrap_or_default();
 
-			skip || !ignore
+			skip || (count && !ignore)
 		})
 		.collect();