chore: customize generate-chart-matrix action

Signed-off-by: Ahmed AbouZaid <[email protected]>

.github/actions/generate-chart-matrix/action.yml

@@ -1,28 +1,42 @@
 name: Generate chart matrix
 description: Find changed charts and generate matrix for changed ones only.
+inputs:
+  charts-path:
+    description: Charts path to match.
+    default: "charts/camunda-platform*"
+  diff-since-last-commit:
+    description: Either find changes since last commit or compare last successful commit of the base branch (main).
+    default: "true"
 outputs:
   matrix:
     description: JSON matrix of changed charts which will be used as and input for GHA workflow matrix.
     value: ${{ steps.set-chart-versions.outputs.matrix }}
 runs:
   using: composite
   steps:
+    - name: Checkout branch
+      uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
+      with:
+        ref: ${{ github.event.pull_request.head.sha }}
+        fetch-depth: 0
     - name: Get changed dirs
       id: changed-files
       uses: tj-actions/changed-files@d6babd6899969df1a11d14c368283ea4436bca78 # v44
       with:
         dir_names: "true"
+        since_last_remote_commit: "${{ inputs.diff-since-last-commit }}"
     - name: Generate matrix
       shell: bash
       id: set-chart-versions
       env:
         ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
       run: |
         echo "Setting matrix based on changed files"
-        echo "Changed files: ${ALL_CHANGED_FILES}"
+        echo "Changed files:"
+        printf "%s\n" ${ALL_CHANGED_FILES}
         touch matrix_versions.txt
 
-        ls -d charts/camunda-platform-8* | while read chart_dir; do
+        ls -d ${{ inputs.charts-path }} | while read chart_dir; do
           if [[ $(echo ${ALL_CHANGED_FILES} | grep "${chart_dir}") ]]; then
             camunda_version="$(echo ${chart_dir} | cut -d '-' -f 3)";
             echo "Camunda version: ${camunda_version}"

.github/workflows/test-regression.yaml

@@ -4,7 +4,7 @@ name: "Test - Regression"
 on:
   pull_request:
     paths:
-    - 'charts/camunda-platform-*/**'
+    - 'charts/camunda-platform-8*/**'
   workflow_dispatch: { }
 
 concurrency:
@@ -32,6 +32,8 @@ jobs:
     - name: Generate chart versions
       id: generate-chart-versions
       uses: ./.github/actions/generate-chart-matrix
+      with:
+        charts-path: "charts/camunda-platform-8*"
 
   validation:
     if: ${{ needs.init.outputs.matrix != '' }}

.github/workflows/test-unit.yml

@@ -5,13 +5,13 @@ on:
     branches:
     - main
     paths:
-    - '.github/**'
+    - '.github/*unit*'
     - '.tool-versions'
     - 'charts/camunda-platform*/**'
     - 'go.*'
   pull_request:
     paths:
-    - '.github/**'
+    - '.github/*unit*'
     - '.tool-versions'
     - 'charts/camunda-platform*/**'
     - 'go.*'