Generate changelog in CI before publishing.

.drone.yml

@@ -15,7 +15,9 @@ steps:
   - name: release
     image: rust
     commands:
-      - cargo publish
+      - cargo install -f git-cliff
+      - git-cliff --output CHANGELOG.md
+      - cargo publish --allow-dirty
     when:
       event:
         - tag

Cargo.toml

@@ -15,4 +15,3 @@ rand = "0.8"
 [package.metadata.release]
 tag-prefix = ""
 publish = false
-pre-release-hook = ["git cliff --tag {{tag_name}} --output CHANGELOG.md", "git add CHANGELOG.md", "git commit CHANGELOG.md -m 'Update changelog for release.'"]

cliff.toml

@@ -10,9 +10,9 @@ All notable changes to this project will be documented in this file.\n
 # https://tera.netlify.app/docs/#introduction
 body = """
 {% if version %}\
-    ## [{{ version | trim_start_matches(pat="v") }}] - {{ timestamp | date(format="%Y-%m-%d") }}
+    ## Version {{ version | trim_start_matches(pat="v") }} - {{ timestamp | date(format="%Y-%m-%d") }}
 {% else %}\
-    ## [unreleased]
+    ## Unreleased
 {% endif %}\
 {% for group, commits in commits | group_by(attribute="group") %}
     ### {{ group | upper_first }}