ci: update changelog generation to script (#1589)

.github/release-drafter.yml

@@ -1,31 +0,0 @@
-name-template: v$NEXT_MINOR_VERSION
-tag-template: v$NEXT_MINOR_VERSION
-categories:
-  - title: New
-    labels:
-      - enhancement
-      - feature
-      - improvement
-  - title: Fixed
-    label: bug
-  - title: Removed
-    label: removed
-  - title: Documentation
-    label: docs
-  - title: Dependency
-    label: dependency
-  - title: Breaking
-    label: breaking
-exclude-labels:
-  - no-changelog
-
-change-template: "- $TITLE @$AUTHOR GH-$NUMBER"
-template: |
-
-  <!-- Optional: add a release summary here -->
-  ## Changes
-  $CHANGES
-
-replacers:
-  - search: '/CVE-(\d{4})-(\d+)/g'
-    replace: "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-$1-$2"

.github/workflows/release-drafter.yml

@@ -1,16 +0,0 @@
-name: Release Drafter
-
-on:
-  push:
-    # branches to consider in the event; optional, defaults to all
-    branches:
-      - master
-
-jobs:
-  update_release_draft:
-    runs-on: ubuntu-latest
-    steps:
-      # Drafts your next Release notes as Pull Requests are merged into "master"
-      - uses: toolmantim/release-drafter@v5.12.1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

scripts/changelog.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+SINCE=$1
+RELEASE=$2
+BRANCH="${3:-$(git branch --show-current)}"
+OUTFILE=$4
+
+docker run --rm=true -it -v "$(pwd)":/usr/local/src/your-app ferrarimarco/github-changelog-generator \
+    --user pomerium --project pomerium \
+    -o "${OUTFILE}" \
+    --no-issues \
+    --max-issues 500 \
+    --usernames-as-github-logins \
+    --release-branch "${BRANCH}" \
+    --future-release "${RELEASE}" \
+    --since-tag "${SINCE}" \
+    --token "${GITHUB_TOKEN}" \
+    --breaking-label "## Breaking" \
+    --enhancement-label "## New" \
+    --bugs-label "## Fixed" \
+    --pr-label "## Changed" \
+    --deprecated-label "## Deprecated" \
+    --removed-label "## Removed" \
+    --security-label "## Security" \
+    --cache-file /usr/local/src/your-app/.cache \
+    --enhancement-labels "improvement,Improvement, enhancement,Enhancement, feature" \
+    --add-sections '{"documentation":{"prefix":"## Documentation","labels":["docs"]}, "dependency":{"prefix":"## Dependency","labels":["dependency"]}, "deployment":{"prefix":"## Deployment","labels":["deployment"]}}'