From b4af8c56c19dfbf8379c81444d3a5f829351e63c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?B=E1=B4=87=CA=80=C9=B4=E1=B4=85=20S=E1=B4=84=CA=9C?=
 =?UTF-8?q?=E1=B4=8F=CA=80=C9=A2=E1=B4=87=CA=80s?= <me@bjw-s.dev>
Date: Thu, 3 Feb 2022 16:44:15 +0100
Subject: [PATCH] ci: Expand PR workflow
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Signed-off-by: Bᴇʀɴᴅ Sᴄʜᴏʀɢᴇʀs <me@bjw-s.dev>
---
 .github/workflows/charts-update-readme.yaml | 84 +++++++++++++++++++++
 .github/workflows/pr-validate.yaml          |  8 ++
 2 files changed, 92 insertions(+)
 create mode 100644 .github/workflows/charts-update-readme.yaml

diff --git a/.github/workflows/charts-update-readme.yaml b/.github/workflows/charts-update-readme.yaml
new file mode 100644
index 00000000..706da5cc
--- /dev/null
+++ b/.github/workflows/charts-update-readme.yaml
@@ -0,0 +1,84 @@
+name: "Charts: Update README"
+
+on:
+  workflow_call:
+    inputs:
+      modifiedCharts:
+        required: true
+        type: string
+      isRenovatePR:
+        required: true
+        type: string
+    outputs:
+      commitHash:
+        description: "The commit hash to use in later jobs"
+        value: ${{ jobs.generate-readme.outputs.commitHash }}
+
+jobs:
+  generate-readme:
+    name: Generate chart README files
+    runs-on: ubuntu-latest
+    outputs:
+      commitHash: ${{ steps.store-commit-hash.outputs.commit_hash }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Install Kubernetes tools
+        uses: yokawasa/action-setup-kube-tools@v0.8.0
+        with:
+          setup-tools: |
+            yq
+          yq: "4.16.2"
+
+      - name: Install helm-docs
+        run: |
+          wget -O /tmp/helm-docs.deb  https://github.com/k8s-at-home/helm-docs/releases/download/v0.1.1/helm-docs_0.1.1_Linux_x86_64.deb
+          sudo dpkg -i /tmp/helm-docs.deb
+
+      # - name: Annotate Charts.yaml for Renovate PR's
+      #   run: |
+      #     export DEFAULT_BRANCH=$(git remote show origin | awk '/HEAD branch/ {print $NF}')
+      #     CHARTS=(${{ inputs.modifiedCharts }})
+      #     for i in "${CHARTS[@]}"
+      #     do
+      #         IFS='/' read -r -a chart_parts <<< "$i"
+      #         if [ -f "charts/${chart_parts[0]}"/"${chart_parts[1]}/Chart.yaml" ]; then
+      #           ./hack/renovate-releasenotes.sh "charts/${chart_parts[0]}"/"${chart_parts[1]}"
+      #         fi
+      #         echo ""
+      #     done
+
+      - name: Generate README for changed charts
+        run: |
+          CHARTS=(${{ inputs.modifiedCharts }})
+          for i in "${CHARTS[@]}"
+          do
+              printf "Rendering README for chart %s\n" "${i}"
+              echo " ${i}"
+              IFS='/' read -r -a chart_parts <<< "$i"
+              if [ -f "charts/${chart_parts[0]}"/"${chart_parts[1]}/Chart.yaml" ]; then
+                ./hack/gen-helm-docs.sh "${chart_parts[0]}" "${chart_parts[1]}"
+              fi
+              echo ""
+          done
+
+      - name: Create commit
+        id: create-commit
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          file_pattern: charts/**/
+          commit_message: Auto-update chart metadata and README
+          commit_user_name: ${{ github.actor }}
+          commit_user_email: ${{ github.actor }}@users.noreply.github.com
+
+      - name: Store commit hash
+        id: store-commit-hash
+        run: |
+          if [ "${{ steps.create-commit.outputs.changes_detected }}" == "true"]; then
+            echo '::set-output name=commit_hash::${{ steps.create-commit.outputs.commit_hash }}'
+          else
+            echo "::set-output name=commit_hash::${GITHUB_SHA}"
+          fi
diff --git a/.github/workflows/pr-validate.yaml b/.github/workflows/pr-validate.yaml
index 2e4232a8..b27a393c 100644
--- a/.github/workflows/pr-validate.yaml
+++ b/.github/workflows/pr-validate.yaml
@@ -12,3 +12,11 @@ concurrency:
 jobs:
   pr-get-metadata:
     uses: k8s-at-home/charts/.github/workflows/pr-get-metadata.yaml@master
+
+  charts-update-readme:
+    uses: k8s-at-home/charts/.github/workflows/charts-update-readme.yaml@master
+    needs:
+      - pr-get-metadata
+    with:
+      isRenovatePR: ${{ needs.pr-get-metadata.outputs.isRenovatePR }}
+      modifiedCharts: ${{ needs.pr-get-metadata.outputs.addedOrModifiedCharts }}