feat: add ci workflow for auto generating changelog

Signed-off-by: gardar <gardar@users.noreply.github.com>

.github/release-drafter.yml

@@ -0,0 +1,52 @@
+name-template: '$RESOLVED_VERSION'
+tag-template: '$RESOLVED_VERSION'
+categories:
+  - title: 'Major Changes'
+    labels:
+      - 'major'  # c6476b
+  - title: 'Minor Changes'
+    labels:
+      - 'feature'  # 006b75
+      - 'enhancement'  # ededed
+      - 'refactoring'
+  - title: 'Bugfixes'
+    labels:
+      - 'bug'  # fbca04
+  - title: 'Deprecations'
+    labels:
+      - 'deprecated'  # fef2c0
+exclude-labels:
+  - 'skip-changelog'
+  - 'duplicate'
+version-resolver:
+  major:
+    labels:
+      - 'major'
+  minor:
+    labels:
+      - 'minor'
+      - 'feature'
+      - 'enhancement'
+      - 'refactoring'
+  patch:
+    labels:
+      - 'patch'
+      - 'bug'
+      - 'deprecated'
+  default: patch
+autolabeler:
+  - label: 'skip-changelog'
+    title: '/chore/i'
+  - label: 'bug'
+    title: '/fix/i'
+  - label: 'enhancement'
+    title: '/(enhance|improve)/i'
+  - label: 'feature'
+    title: '/feature/i'
+  - label: 'dreprecated'
+    title: '/deprecat/i'
+change-template: '* $TITLE by @$AUTHOR in #$NUMBER'
+template: |
+  What's Changed
+  ===
+  $CHANGES

.github/version-drafter.yml

@@ -0,0 +1,4 @@
+---
+major-labels: ['semver:major', 'major', 'breaking']
+minor-labels: ['semver:minor', 'minor', 'enhancement', 'deprecated', 'removed', 'security']
+patch-labels: ['semver:patch', 'bug', 'trivial', 'bugfix']

.github/workflows/publish_latest.yml

@@ -1,89 +0,0 @@
-name: Publish Collection
-on:
-  push:
-    branches:
-      - main
-  release:
-    types:
-      - 'published'
-
-env:
-  python-version: 3.9
-
-jobs:
-  publish-latest:
-    if: github.event_name == 'push'
-    runs-on: ubuntu-22.04
-    defaults:
-      run:
-        working-directory: ansible_collections/prometheus/prometheus
-    steps:
-      - name: Check out code
-        uses: actions/checkout@v2
-        with:
-          path: ansible_collections/prometheus/prometheus
-
-      - name: Set up Python
-        uses: actions/setup-python@v1
-        with:
-          python-version: ${{ env.python-version }}
-
-      - name: Install ansible-base (devel)
-        run: pip install https://github.com/ansible/ansible/archive/devel.tar.gz --disable-pip-version-check
-
-      - name: Build the collection
-        run: ansible-galaxy collection build
-
-      - name: Rename the build artifact
-        run: mv prometheus-prometheus-*.tar.gz prometheus-community-prometheus-latest.tar.gz
-
-      # Moving the tag leaves an orphan artifact. Just changing the artifact doesn't move the tag.
-      - name: Delete latest tag and release
-        uses: dev-drprasad/delete-tag-and-release@v0.1.2
-        with:
-          delete_release: true
-          tag_name: latest
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Upload files to release
-        uses: svenstaro/upload-release-action@v2
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ansible_collections/prometheus/prometheus/prometheus-community-prometheus-latest.tar.gz
-          asset_name: prometheus-community-prometheus-latest.tar.gz
-          body: "Development release"
-          tag: latest
-          overwrite: true
-
-  publish-tagged:
-    if: github.event_name == 'release'
-    runs-on: ubuntu-22.04
-    defaults:
-      run:
-        working-directory: ansible_collections/prometheus/prometheus
-    steps:
-      - name: Check out code
-        uses: actions/checkout@v2
-        with:
-          path: ansible_collections/prometheus/prometheus
-
-      - name: Set up Python
-        uses: actions/setup-python@v1
-        with:
-          python-version: ${{ env.python-version }}
-
-      - name: Install ansible-base (devel)
-        run: pip install https://github.com/ansible/ansible/archive/devel.tar.gz --disable-pip-version-check
-
-      - name: Build the collection
-        run: ansible-galaxy collection build
-
-      - name: Upload files to release
-        uses: svenstaro/upload-release-action@v2
-        with:
-          repo_token: ${{ secrets.GITHUB_TOKEN }}
-          file: ansible_collections/prometheus/prometheus/prometheus-community-prometheus-*.tar.gz
-          file_glob: true
-          tag: ${{ github.ref }}
-          overwrite: true

.github/workflows/release.yml

@@ -0,0 +1,81 @@
+---
+name: Ansible collection release
+on:
+  pull_request:
+    types:
+      - closed
+
+jobs:
+  release:
+    if: |
+      github.event.pull_request.merged &&
+      github.ref == github.event.repository.default_branch &&
+      !contains(github.event.pull_request.labels.*.name, 'skip-release')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: "Install tools"
+        run: "python -m pip install ansible-base antsibull-changelog --disable-pip-version-check"
+
+      - name: "Calculate next version"
+        id: version
+        uses: gardar/version-drafter-action@event-triggers  # Until PR gets merged: https://github.com/patrickjahns/version-drafter-action/pull/343
+        env:
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+
+      - name: "Check git repo before changelog"
+        run: git status
+
+      - name: "Generate new version in changelog.yaml"
+        run: antsibull-changelog release -v --version "${{ steps.version.outputs.next-version }}"
+
+      - name: "Run antsichaut"
+        uses: gardar/antsichaut-action@yaml-lint  # Until PR gets merged: https://github.com/rndmh3ro/antsichaut/pull/4
+        with:
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          since_version: "${{ steps.version.outputs.current-version }}"
+
+      - name: "Update Changelog.rst"
+        run: "antsibull-changelog generate -v"
+
+      - name: "Update collection version"
+        uses: mikefarah/yq@master
+        with:
+          cmd: yq -i '.version = "${{ steps.version.outputs.next-version }}"' 'galaxy.yml'
+
+      - name: "Check git repo"
+        run: git status
+
+      - name: "Write changelog and version"
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          branch: ${{ github.event.pull_request.base.ref }}
+          commit_message: "chore: update version"
+
+      - name: "Checkout updated branch"
+        uses: actions/checkout@v3.3.0
+        with:
+          ref: ${{ github.event.pull_request.base.ref }}
+
+      - name: "Build the collection"
+        run: ansible-galaxy collection build
+
+      - name: "Publish release"
+        id: release-publish
+        uses: release-drafter/release-drafter@v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          publish: true
+
+      - name: "Upload built collection to release"
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: prometheus-prometheus-*.tar.gz
+          file_glob: true
+          tag: ${{ steps.release-publish.outputs.tag_name }}
+          overwrite: true

CONTRIBUTING.md

@@ -42,9 +42,9 @@ to a commit with merge request. Available keywords are (square brackets are impo
 * `[major]`, `[breaking change]` - for MAJOR version release
  
 ## Changelog
- 
-Changelog is generated automatically during release process and all information is taken from github issues, PRs and
-labels.
+This project uses [antsibull-changelog](https://docs.ansible.com/ansible/latest/dev_guide/developing_collections_changelogs.html#generating-changelogs) to generate changelogs.
+
+Changelog is generated automatically during release process and all information is taken from github PRs, commits and labels.
 
 ## Expectations