From d00abe09724ef764270628a6f613cd8028412b6b Mon Sep 17 00:00:00 2001
From: Andreas Christou <andreas.christou@grafana.com>
Date: Tue, 27 Aug 2024 16:49:23 +0100
Subject: [PATCH] CI: Update inputs to allow specifying previous version
 (#92506)

* Update inputs to allow specifying previous version

* Add one more input
---
 .github/workflows/changelog.yml  | 9 +++++++++
 .github/workflows/release-pr.yml | 5 +++++
 2 files changed, 14 insertions(+)

diff --git a/.github/workflows/changelog.yml b/.github/workflows/changelog.yml
index 48246cc7f42..c0d2a24b0ac 100644
--- a/.github/workflows/changelog.yml
+++ b/.github/workflows/changelog.yml
@@ -2,6 +2,10 @@ name: Generate changelog
 on:
   workflow_call:
     inputs:
+      previous_version:
+        type: string
+        required: false
+        description: 'The release version (semver, git tag, branch or commit) to use for comparison'
       version:
         type: string
         required: true
@@ -26,6 +30,10 @@ on:
 
   workflow_dispatch:
     inputs:
+      previous_version:
+        type: string
+        required: false
+        description: 'The release version (semver, git tag, branch or commit) to use for comparison'
       version:
         type: string
         required: true
@@ -79,6 +87,7 @@ jobs:
         id: changelog
         uses: ./.github/workflows/actions/changelog
         with:
+          previous: ${{ inputs.previous_version }}
           github_token: ${{ steps.generate_token.outputs.token }}
           target: v${{ inputs.version }}
           output_file: changelog_items.md
diff --git a/.github/workflows/release-pr.yml b/.github/workflows/release-pr.yml
index f960bb5ca74..9304ca5301c 100644
--- a/.github/workflows/release-pr.yml
+++ b/.github/workflows/release-pr.yml
@@ -8,6 +8,10 @@ name: Complete a Grafana release
 on:
   workflow_dispatch:
     inputs:
+      previous_version:
+        type: string
+        required: false
+        description: 'The release version (semver, git tag, branch or commit) to use for comparison'
       version:
         required: true
         type: string
@@ -38,6 +42,7 @@ jobs:
     name: Create PR to main to update the changelog
     uses: ./.github/workflows/changelog.yml
     with:
+      previous_version: ${{inputs.previous_version}}
       version: ${{ inputs.version }}
       latest: ${{ inputs.latest }}
       dry_run: ${{ inputs.dry_run }}