ci: auto-generate changelog (#52)

.chglog/CHANGELOG.tpl.md

@@ -0,0 +1,23 @@
+# Changelog
+
+{{ range .Versions -}}
+## {{ if .Tag.Previous }}[{{ .Tag.Name }}]({{ $.Info.RepositoryURL }}/compare/{{ .Tag.Previous.Name }}...{{ .Tag.Name }}){{ else }}{{ .Tag.Name }}{{ end }} ({{ datetime "2006-01-02" .Tag.Date }})
+
+{{ range .CommitGroups -}}
+### {{ .Title }}
+
+{{ range .Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
+{{ end }}
+{{ end -}}
+
+{{- if .NoteGroups -}}
+{{ range .NoteGroups -}}
+### {{ .Title }}
+
+{{ range .Notes }}
+{{ .Body }}
+{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end -}}

.chglog/config.yml

@@ -0,0 +1,25 @@
+style: github
+template: CHANGELOG.tpl.md
+info:
+  title: CHANGELOG
+  repository_url: https://github.com/thegeeklab/docker-tidy
+options:
+  commit_groups:
+    title_maps:
+      feat: Features
+      fix: Bug Fixes
+      perf: Performance Improvements
+      refactor: Code Refactoring
+      chore: Others
+      test: Testing
+      ci: CI Pipeline
+      docs: Documentation
+  header:
+    pattern: "^(\\w*)(?:\\(([\\w\\$\\.\\-\\*\\s]*)\\))?\\:\\s(.*)$"
+    pattern_maps:
+      - Type
+      - Scope
+      - Subject
+  notes:
+    keywords:
+      - BREAKING CHANGE

.drone.jsonnet

@@ -160,6 +160,15 @@ local PipelineBuildPackage = {
         'cd dist/ && sha256sum * > ../sha256sum.txt',
       ],
     },
+    {
+      name: 'changelog',
+      image: 'thegeeklab/git-chglog',
+      commands: [
+        'git fetch -tq',
+        'git-chglog --no-color --no-emoji ${DRONE_TAG:---next-tag unreleased unreleased}',
+        'git-chglog --no-color --no-emoji -o CHANGELOG.md ${DRONE_TAG:---next-tag unreleased unreleased}',
+      ],
+    },
     {
       name: 'publish-github',
       image: 'plugins/github-release',

.drone.yml

@@ -179,6 +179,13 @@ steps:
   commands:
   - cd dist/ && sha256sum * > ../sha256sum.txt
 
+- name: changelog
+  image: thegeeklab/git-chglog
+  commands:
+  - git fetch -tq
+  - git-chglog --no-color --no-emoji ${DRONE_TAG:---next-tag unreleased unreleased}
+  - git-chglog --no-color --no-emoji -o CHANGELOG.md ${DRONE_TAG:---next-tag unreleased unreleased}
+
 - name: publish-github
   image: plugins/github-release
   settings:
@@ -637,6 +644,6 @@ depends_on:
 
 ---
 kind: signature
-hmac: bee34a1359dbf20fcb5bf7255abd322c65612a1916416e8a4b79b6c796d7d065
+hmac: 321540ba92e4abe200e4c4ad456091b37bbbbf08b3edb5c9f3124471f77c206d
 
 ...

.gitignore

@@ -109,3 +109,4 @@ resources/_gen/
 
 # Misc
 .dockertidy*
+CHANGELOG.md

CHANGELOG.md

@@ -1,19 +0,0 @@
-# Changelog
-
-## v0.1.5 (2020-12-26)
-
-### Docs
-
-- add contributing information
-
-### Others
-
-- **deps**: pin docker digests
-- **docker**: use standalone dockerfiles for multiarch
-- **docker**: switch to org.opencontainers image labels
-
-### Breaking Changes
-
-- drop Python 3.5 support
-
-Full set of changes: [`v0.1.4...v0.1.5`](https://github.com/thegeeklab/docker-tidy/compare/v0.1.4...v0.1.5)