From 45bb2caddaf9f7a1ca790d05dc913be01f8892c5 Mon Sep 17 00:00:00 2001
From: Michael Wilkerson <mwilkerson@hashicorp.com>
Date: Thu, 23 Feb 2023 16:41:26 +0000
Subject: [PATCH] backport of commit 5b7b1884bbe32cd16703429943828736c40b6805

---
 .changelog/changelog.tmpl               | 57 +++++++++++++++++++++++++
 .changelog/note.tmpl                    |  3 ++
 .github/workflows/changelog-checker.yml | 46 ++++++++++++++++++++
 3 files changed, 106 insertions(+)
 create mode 100644 .changelog/changelog.tmpl
 create mode 100644 .changelog/note.tmpl
 create mode 100644 .github/workflows/changelog-checker.yml

diff --git a/.changelog/changelog.tmpl b/.changelog/changelog.tmpl
new file mode 100644
index 0000000000..c1de4293b9
--- /dev/null
+++ b/.changelog/changelog.tmpl
@@ -0,0 +1,57 @@
+{{- if index .NotesByType "breaking-change" -}}
+BREAKING CHANGES:
+
+{{range index .NotesByType "breaking-change" -}}
+* {{ template "note" . }}
+{{ end -}}
+{{- end -}}
+
+{{- if .NotesByType.security }}
+SECURITY:
+
+{{range .NotesByType.security -}}
+* {{ template "note" . }}
+{{ end -}}
+{{- end -}}
+
+{{- if .NotesByType.feature }}
+FEATURES:
+
+{{range .NotesByType.feature -}}
+* {{ template "note" . }}
+{{ end -}}
+{{- end -}}
+
+{{- $improvements := combineTypes .NotesByType.improvement .NotesByType.enhancement -}}
+{{- if $improvements }}
+IMPROVEMENTS:
+
+{{range $improvements | sort -}}
+* {{ template "note" . }}
+{{ end -}}
+{{- end -}}
+
+{{- if .NotesByType.deprecation }}
+DEPRECATIONS:
+
+{{range .NotesByType.deprecation -}}
+* {{ template "note" . }}
+{{ end -}}
+{{- end -}}
+
+{{- if .NotesByType.bug }}
+BUG FIXES:
+
+{{range .NotesByType.bug -}}
+* {{ template "note" . }}
+{{ end -}}
+{{- end -}}
+
+{{- if .NotesByType.note }}
+NOTES:
+
+{{range .NotesByType.note -}}
+* {{ template "note" . }}
+{{ end -}}
+{{- end -}}
+
diff --git a/.changelog/note.tmpl b/.changelog/note.tmpl
new file mode 100644
index 0000000000..7588c65fd4
--- /dev/null
+++ b/.changelog/note.tmpl
@@ -0,0 +1,3 @@
+{{- define "note" -}}
+{{.Body}}{{if not (stringHasPrefix .Issue "_")}} [[GH-{{- .Issue -}}](https://github.com/hashicorp/consul-k8s/issues/{{- .Issue -}})]{{end}}
+{{- end -}}
diff --git a/.github/workflows/changelog-checker.yml b/.github/workflows/changelog-checker.yml
new file mode 100644
index 0000000000..bb13255d29
--- /dev/null
+++ b/.github/workflows/changelog-checker.yml
@@ -0,0 +1,46 @@
+# This workflow checks that there is either a 'pr/no-changelog' label applied to a PR
+# or there is a .changelog/<pr number>.txt file associated with a PR for a changelog entry
+
+name: Changelog Checker
+
+on:
+  pull_request:
+    types: [opened, synchronize, labeled]
+    # Runs on PRs to main and all release branches
+    branches:
+      - main
+      - release/*
+
+jobs:
+  # checks that a .changelog entry is present for a PR
+  changelog-check:
+    # If there  a `pr/no-changelog` label we ignore this check. Also, we ignore PRs created by the bot assigned to `backport-assistant`
+    if: "! ( contains(github.event.pull_request.labels.*.name, 'pr/no-changelog') || github.event.pull_request.user.login == 'hc-github-team-consul-core' )" 
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+          fetch-depth: 0 # by default the checkout action doesn't checkout all branches
+      - name: Check for changelog entry in diff
+        run: |
+          # check if there is a diff in the .changelog directory
+          # for PRs against the main branch, the changelog file name should match the PR number
+          if [ "${{ github.event.pull_request.base.ref }}" = "${{ github.event.repository.default_branch }}" ]; then
+            enforce_matching_pull_request_number="matching this PR number "
+            changelog_file_path=".changelog/(_)?${{ github.event.pull_request.number }}.txt"
+          else
+            changelog_file_path=".changelog/[_0-9]*.txt"
+          fi
+
+          changelog_files=$(git --no-pager diff --name-only HEAD "$(git merge-base HEAD "origin/main")" | egrep ${changelog_file_path})
+
+          # If we do not find a file in .changelog/, we fail the check
+          if [ -z "$changelog_files" ]; then
+            # Fail status check when no .changelog entry was found on the PR
+            echo "Did not find a .changelog entry ${enforce_matching_pull_request_number}and the 'pr/no-changelog' label was not applied. Reference - https://github.com/hashicorp/consul/pull/8387"
+            exit 1
+          else
+            echo "Found .changelog entry in PR!"
+          fi