feat(parser): support using regex scope values

.github/fixtures/new-fixture-template/cliff.toml

@@ -14,12 +14,9 @@ body = """
 {% endif %}\
 {% for group, commits in commits | group_by(attribute="group") %}
     ### {{ group | upper_first }}
-    {% for group, commits in commits | group_by(attribute="scope") %}
-        #### {{ group | upper_first }}
-        {% for commit in commits %}
-            - {{ commit.message | upper_first }}\
-        {% endfor %}
-    {% endfor %}\
+    {% for commit in commits %}
+        - {{ commit.message | upper_first }}\
+    {% endfor %}
 {% endfor %}\n
 """
 # template for the changelog footer

.github/fixtures/new-fixture-template/expected.md

@@ -6,32 +6,26 @@ All notable changes to this project will be documented in this file.
 
 ### Test
 
+- Add tests
+
 ## [0.2.0] - 2022-04-06
 
 ### Bug Fixes
 
-#### Cli
-
 - Fix feature 2
 
 ### Features
 
-#### Gui
-
 - Add feature 2
 
 ## [0.1.0] - 2022-04-06
 
 ### Bug Fixes
 
-#### Cli
-
 - Fix feature 1
 
 ### Features
 
-#### App
-
 - Add feature 1
 
 <!-- generated by git-cliff -->

.github/fixtures/test-regex-replace-parser/cliff.toml

@@ -0,0 +1,35 @@
+[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 %}
+        - ({{ commit.scope }}) {{ 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 parsing and grouping commits
+commit_parsers = [
+  { message = '^fix\((.*)\)', group = 'Fix (${1}) 🧰' },
+  { message = '^feat\((.*)\)', group = 'Feature (${1}) 🚀' },
+  { message = "^\\[(.*)\\]", group = "Changes to ${1}", scope = "${1}" },
+]

.github/fixtures/test-regex-replace-parser/commit.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+set -e
+
+GIT_COMMITTER_DATE="2022-04-06 01:25:08" git commit --allow-empty -m "Initial commit"
+GIT_COMMITTER_DATE="2022-04-06 01:25:09" git commit --allow-empty -m "feat(config): add feature 1"
+GIT_COMMITTER_DATE="2022-04-06 01:25:10" git commit --allow-empty -m "fix(config): fix feature 1"
+git tag v0.1.0
+GIT_COMMITTER_DATE="2022-04-06 01:25:11" git commit --allow-empty -m "feat(gui): add feature 2"
+GIT_COMMITTER_DATE="2022-04-06 01:25:12" git commit --allow-empty -m "fix(gui): fix feature 2"
+git tag v0.2.0
+GIT_COMMITTER_DATE="2022-04-06 01:25:13" git commit --allow-empty -m "[tests]: add tests"
+GIT_COMMITTER_DATE="2022-04-06 01:25:13" git commit --allow-empty -m "[codebase]: refactor stuff"
+GIT_COMMITTER_DATE="2022-04-06 01:25:13" git commit --allow-empty -m "[codebase]: refactor more stuff"
+GIT_COMMITTER_DATE="2022-04-06 01:25:13" git commit --allow-empty -m "[security]: rewrite everything in Rust"

.github/fixtures/test-regex-replace-parser/expected.md

@@ -0,0 +1,40 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [unreleased]
+
+### Changes to codebase
+
+- (codebase) Refactor stuff
+- (codebase) Refactor more stuff
+
+### Changes to security
+
+- (security) Rewrite everything in Rust
+
+### Changes to tests
+
+- (tests) Add tests
+
+## [0.2.0] - 2022-04-05
+
+### Feature (gui) 🚀
+
+- (gui) Add feature 2
+
+### Fix (gui) 🧰
+
+- (gui) Fix feature 2
+
+## [0.1.0] - 2022-04-05
+
+### Feature (config) 🚀
+
+- (config) Add feature 1
+
+### Fix (config) 🧰
+
+- (config) Fix feature 1
+
+<!-- generated by git-cliff -->

git-cliff-core/src/commit.rs

@@ -292,16 +292,17 @@ impl Commit<'_> {
 							"Skipping commit",
 						)));
 					} else {
+						let regex_replace = |mut value: String| {
+							for mat in regex.find_iter(&text) {
+								value =
+									regex.replace(mat.as_str(), value).to_string();
+							}
+							value
+						};
 						self.group =
-							parser.group.as_ref().cloned().map(|mut group| {
-								for mat in regex.find_iter(&text) {
-									group = regex
-										.replace(mat.as_str(), group)
-										.to_string();
-								}
-								group
-							});
-						self.scope = parser.scope.as_ref().cloned();
+							parser.group.as_ref().cloned().map(regex_replace);
+						self.scope =
+							parser.scope.as_ref().cloned().map(regex_replace);
 						self.default_scope = parser.default_scope.as_ref().cloned();
 						return Ok(self);
 					}