chore: improve generated changelog

.chglog/CHANGELOG.tpl.md

@@ -6,10 +6,14 @@
 {{ range .CommitGroups -}}
 ### {{ .Title }}
 
+{{ $subjects := list }}
 {{ range .Commits -}}
+{{ if not (has .Subject $subjects) -}}
 - {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
+{{ $subjects = append $subjects .Subject -}}
 {{ end }}
-{{ end -}}
+{{- end }}
+{{- end -}}
 
 {{- if .NoteGroups -}}
 {{ range .NoteGroups -}}

.drone.yml

@@ -55,15 +55,22 @@ steps:
   depends_on:
   - dryrun
 
-- name: changelog
+- name: changelog-generate
   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}
   depends_on:
   - tags
 
+- name: changelog-format
+  image: thegeeklab/alpine-tools
+  commands:
+  - prettier CHANGELOG.md
+  - prettier -w CHANGELOG.md
+  depends_on:
+  - changelog-generate
+
 - name: publish-dockerhub
   image: thegeeklab/drone-docker-buildx:20
   settings:
@@ -188,6 +195,6 @@ depends_on:
 
 ---
 kind: signature
-hmac: 54adfa120f98b9554b345128101ae4c8725bddb13a735fb879c748ec6fb482b4
+hmac: 32f47c4643a2e25175cb1bf7a78dd447c8a9083f53ca82493afc86685d2b2b61
 
 ...

.prettierignore

@@ -1 +1,2 @@
 .drone.yml
+*.tpl.md