From 32e2558c3ef77ab8da335b42134533697d5c3938 Mon Sep 17 00:00:00 2001
From: Eirik Haatveit <haatveit@uio.no>
Date: Mon, 1 Jul 2024 14:18:52 +0200
Subject: [PATCH] ci(docs): add automatic generation of CHANGELOG

---
 .github/workflows/changelog.yaml | 37 +++++++++++++
 cliff.toml                       | 95 ++++++++++++++++++++++++++++++++
 2 files changed, 132 insertions(+)
 create mode 100644 .github/workflows/changelog.yaml
 create mode 100644 cliff.toml

diff --git a/.github/workflows/changelog.yaml b/.github/workflows/changelog.yaml
new file mode 100644
index 0000000..8bd0c30
--- /dev/null
+++ b/.github/workflows/changelog.yaml
@@ -0,0 +1,37 @@
+name: Generate changelog
+on:
+  push:
+    branches:
+      - master
+  workflow_run:
+    workflows: [Create GitHub release]
+    types: [completed]
+
+
+jobs:
+  changelog:
+    name: Generate changelog
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write # needed to write commit
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Generate a changelog
+        uses: orhun/git-cliff-action@v3
+        with:
+          config: cliff.toml
+          args: --verbose
+        env:
+          OUTPUT: CHANGELOG.md
+          GITHUB_REPO: ${{ github.repository }}
+      - name: Commit changes
+        uses: stefanzweifel/git-auto-commit-action@v5
+        with:
+          commit_message: "chore(docs): update CHANGELOG"
+          file_pattern: CHANGELOG.md
+          commit_user_name: github-actions[bot]
+          commit_user_email: github-actions[bot]@users.noreply.github.com
+          branch: master
diff --git a/cliff.toml b/cliff.toml
new file mode 100644
index 0000000..44f672d
--- /dev/null
+++ b/cliff.toml
@@ -0,0 +1,95 @@
+# git-cliff ~ default configuration file
+# https://git-cliff.org/docs/configuration
+#
+# Lines starting with "#" are comments.
+# Configuration options are organized into tables and keys.
+# See documentation for more information on available options.
+
+[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 | striptags | trim | upper_first }}
+    {% for commit in commits %}
+        * {% if commit.scope %}*({{ commit.scope }})* {% endif %}\
+            {% if commit.breaking %}[**breaking**] {% endif %}\
+            {{ commit.message | split(pat="\n") | first | upper_first | trim }} \
+            ([{{ commit.id | truncate(length=7, end="") }}](https://github.com/unioslo/tsd-file-api/commit/{{ commit.id }})) - {{commit.committer.name}} \
+    {% endfor %}
+{% endfor %}\n
+"""
+# template for the changelog footer
+footer = """
+<!-- generated by git-cliff -->
+"""
+# remove the leading and trailing s
+trim = true
+# postprocessors
+postprocessors = [
+  # { pattern = '<REPO>', replace = "https://github.com/orhun/git-cliff" }, # replace repository URL
+]
+
+[git]
+# parse the commits based on https://www.conventionalcommits.org
+conventional_commits = true
+# filter out the commits that are not conventional
+filter_unconventional = false
+# process each line of a commit as an individual commit
+split_commits = false
+# regex for preprocessing the commit messages
+commit_preprocessors = [
+  # Replace issue numbers
+  #{ pattern = '\((\w+\s)?#([0-9]+)\)', replace = "([#${2}](<REPO>/issues/${2}))"},
+  # Check spelling of the commit with https://github.com/crate-ci/typos
+  # If the spelling is incorrect, it will be automatically fixed.
+  #{ pattern = '.*', replace_command = 'typos --write-changes -' },
+]
+# regex for parsing and grouping commits
+commit_parsers = [
+  { message = "^feat", group = "<!-- 0 -->🚀 Features" },
+  { message = "^fix", group = "<!-- 1 -->🐛 Bug Fixes" },
+  { message = "^doc", group = "<!-- 3 -->📚 Documentation" },
+  { message = "^perf", group = "<!-- 4 -->⚡ Performance" },
+  { message = "^refactor", group = "<!-- 2 -->🚜 Refactor" },
+  { message = "^style", group = "<!-- 5 -->🎨 Styling" },
+  { message = "^test", group = "<!-- 6 -->🧪 Testing" },
+  { message = "^build|deps", group = "<!-- 7 -->🚧 Build" },
+  { message = "^deps", group = "<!-- 7 -->🚧 Build" },
+  { message = "^chore\\(release\\): prepare for", skip = true },
+  { message = "^chore\\(deps.*\\)", skip = true },
+  { message = "^chore\\(pr\\)", skip = true },
+  { message = "^chore\\(pull\\)", skip = true },
+  { message = "^chore\\(docs\\)", skip = true },
+  { message = "^chore|^ci", group = "<!-- 8 -->⚙️ Miscellaneous Tasks" },
+  { body = ".*security", group = "<!-- 9 -->🛡️ Security" },
+  { message = "^revert", group = "<!-- 10 -->◀️ Revert" },
+  { message = "^Merge branch.*", skip = true },
+  { message = ".*", group = "❓ Uncategorized" },
+]
+# protect breaking changes from being skipped due to matching a skipping commit_parser
+protect_breaking_commits = false
+# filter out the commits that are not matched by commit parsers
+filter_commits = false
+# regex for matching git tags
+# tag_pattern = "v[0-9].*"
+# regex for skipping tags
+# skip_tags = ""
+# regex for ignoring tags
+# ignore_tags = ""
+# sort the tags topologically
+topo_order = false
+# sort the commits inside sections by oldest/newest order
+sort_commits = "oldest"
+# limit the number of commits included in the changelog.
+# limit_commits = 42