ci: replace pull_request_target with two-step workflows (#841)

* ci: update PR auto assign workflows

Signed-off-by: Andy Lee <andy.lee@suse.com>

* ci: update backport label workflow

Signed-off-by: Andy Lee <andy.lee@suse.com>

* ci: update backport PR via mergify workflow

Signed-off-by: Andy Lee <andy.lee@suse.com>

* ci: update add PR label workflow

Signed-off-by: Andy Lee <andy.lee@suse.com>

* refactor: file name

Signed-off-by: Andy Lee <andy.lee@suse.com>

* refactor: limit auto-assign-check for target branches

Signed-off-by: Andy Lee <andy.lee@suse.com>

---------

Signed-off-by: Andy Lee <andy.lee@suse.com>

.github/auto-assign-config.yaml

@@ -1,6 +0,0 @@
-addAssignees: author
-addReviewers: true
-numberOfReviewers: 0
-reviewers:
-- a110605
-- houhoucoop

.github/workflows/add-pr-label-check.yaml

@@ -0,0 +1,39 @@
+name: "[PR Management] Add PR Label Collect Data"
+
+on:
+  pull_request:
+    types: [opened, reopened, edited]
+    branches:
+      - main
+      - 'release-harvester-v*'
+
+jobs:
+  collect:
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      actions: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          ref: ${{ github.base_ref }}
+
+      - name: Setup Nodejs and yarn install
+        uses: ./.github/actions/setup
+
+      - name: Extract PR label
+        run: |
+          PR_LABEL=$(node ./scripts/extract-release-label.mjs "${{ github.event.pull_request.title }}")
+          echo "PR_LABEL=$PR_LABEL"
+          {
+            echo "PR_NUMBER=${{ github.event.pull_request.number }}"
+            echo "PR_LABEL=$PR_LABEL"
+          } > pr-add-label-data.env
+
+      - name: Upload PR data artifact
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        with:
+          name: pr-add-label-data
+          path: pr-add-label-data.env

.github/workflows/add-pr-label.yaml

@@ -0,0 +1,33 @@
+name: "[PR Management] Add PR Label"
+
+on:
+  workflow_run:
+    workflows:
+      - "[PR Management] Add PR Label Collect Data"
+    types: [completed]
+
+jobs:
+  auto-assign-pr-label:
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    permissions:
+      actions: read
+      pull-requests: write
+    steps:
+      - name: Download PR data artifact
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
+        with:
+          name: pr-add-label-data
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ github.token }}
+
+      - name: Load PR data
+        run: |
+          cat pr-add-label-data.env >> $GITHUB_ENV
+
+      - name: Set PR label
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          echo "PR_LABEL = $PR_LABEL"
+          gh pr edit "$PR_NUMBER" --repo "${{ github.repository }}" --add-label "$PR_LABEL"

.github/workflows/auto-assign-check.yaml

@@ -0,0 +1,28 @@
+name: "[PR Management] Auto Assign Collect Data"
+
+on:
+  pull_request:
+    types: [opened, ready_for_review]
+    branches:
+      - main
+      - 'release-harvester-v*'
+
+jobs:
+  collect:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      actions: write
+    steps:
+      - name: Save PR data to artifact
+        run: |
+          {
+            echo "PR_NUMBER=${{ github.event.pull_request.number }}"
+            echo "PR_AUTHOR=${{ github.event.pull_request.user.login }}"
+          } > pr-auto-assign-data.env
+
+      - name: Upload PR data artifact
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        with:
+          name: pr-auto-assign-data
+          path: pr-auto-assign-data.env

.github/workflows/auto-assign-reviewer.yaml

@@ -1,17 +0,0 @@
-name: "[PR Management] Auto Assign Reviewer & Assignee"
-
-on:
-  pull_request_target:
-    types: [opened, ready_for_review]
-
-permissions:
-  pull-requests: write
-
-jobs:
-  auto-assign:
-    if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
-    steps:
-      - uses: rancher/gh-issue-mgr/auto-assign-action@b70f0bdf12a03e5e3f33e4f92ccb6c89deb3ebd9 # main
-        with:
-          configuration-path: .github/auto-assign-config.yaml

.github/workflows/auto-assign.yaml

@@ -0,0 +1,35 @@
+name: "[PR Management] Auto Assign"
+
+on:
+  workflow_run:
+    workflows:
+      - "[PR Management] Auto Assign Collect Data"
+    types: [completed]
+
+jobs:
+  auto-assign:
+    runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    env:
+      REVIEWERS: "a110605,houhoucoop"
+    permissions:
+      actions: read
+      pull-requests: write
+    steps:
+      - name: Download PR data artifact
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
+        with:
+          name: pr-auto-assign-data
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ github.token }}
+
+      - name: Load PR data
+        run: |
+          cat pr-auto-assign-data.env >> $GITHUB_ENV
+
+      - name: Auto assign PR author
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          echo "Assigning PR author: $PR_AUTHOR"
+          gh pr edit "$PR_NUMBER" --repo "${{ github.repository }}" --add-assignee "$PR_AUTHOR" --add-reviewer "$REVIEWERS"

.github/workflows/backport-label-check.yaml

@@ -0,0 +1,30 @@
+name: "[PR Management] Add Labels Collect Data"
+
+on:
+  pull_request:
+    types: [opened, reopened]
+    branches:
+      - main
+      - 'release-harvester-v*'
+
+jobs:
+  collect:
+    if: github.event.pull_request.draft == false
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      actions: write
+    steps:
+      - name: Save PR data to artifact
+        run: |
+          {
+            echo "PR_NUMBER=${{ github.event.pull_request.number }}"
+            echo "PR_BASE_REF=${{ github.event.pull_request.base.ref }}"
+            echo "PR_USER_LOGIN=${{ github.event.pull_request.user.login }}"
+          } > pr-backport-label-data.env
+
+      - name: Upload PR data artifact
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        with:
+          name: pr-backport-label-data
+          path: pr-backport-label-data.env

.github/workflows/backport-label.yaml

@@ -1,40 +1,44 @@
-name: "[PR Management] Add Labels"
+name: "[PR Management] Add Backport Labels"
 
 on:
-  pull_request_target:
+  workflow_run:
-    types: [opened, reopened]
+    workflows:
-    branches:
+      - "[PR Management] Add Labels Collect Data"
-      - main
+    types: [completed]
-      - 'release-harvester-v*'
-
-permissions:
-  pull-requests: write
 
 jobs:
   add-require-backport-label:
-    if: github.event.pull_request.draft == false &&
-        github.event.pull_request.base.ref == 'main'
     runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    permissions:
+      actions: read
+      pull-requests: write
     steps:
-      - name: Checkout repository
+      - name: Download PR data artifact
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
         with:
-          ref: ${{ github.base_ref }}
+          name: pr-backport-label-data
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ github.token }}
 
-      - name: Fetch release branches and PR labels
+      - name: Load PR data
-        id: fetch_info
+        run: |
+          cat pr-backport-label-data.env >> $GITHUB_ENV
+
+      - name: Add require-backport label (main branch PRs)
+        if: env.PR_BASE_REF == 'main'
         env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_TOKEN: ${{ github.token }}
         run: |
           set -euo pipefail
 
           repo="${{ github.repository }}"
-          pr_number=${{ github.event.pull_request.number }}
+          pr_number="$PR_NUMBER"
 
           release_branches=$(gh api "repos/${repo}/branches" --paginate --jq '.[].name' | grep -E '^release-harvester-v[0-9]+\.[0-9]+$' || true)
 
           if [[ -z "$release_branches" ]]; then
-            echo "should_label=false" >> "$GITHUB_OUTPUT"
+            echo "No release branches found, skipping."
             exit 0
           fi
 
@@ -44,51 +48,36 @@ jobs:
 
           tags=$(gh api "repos/${repo}/releases" --paginate --jq '.[].tag_name')
           if echo "$tags" | grep -Fxq "$release_tag"; then
-            echo "should_label=false" >> "$GITHUB_OUTPUT"
+            echo "Release $release_tag already published, skipping."
             exit 0
           fi
 
           label="require backport/v${version}"
-          echo "should_label=true" >> "$GITHUB_OUTPUT"
-          echo "backport_label=$label" >> "$GITHUB_OUTPUT"
-
           pr_labels=$(gh pr view "$pr_number" --repo "$repo" --json labels --jq '.labels[].name' || echo "")
-          pr_labels_csv=$(echo "$pr_labels" | tr '\n' ',' | sed 's/,$//')
-          echo "pr_labels=$pr_labels_csv" >> "$GITHUB_OUTPUT"
 
-      - name: Add label if needed
+          if echo "$pr_labels" | grep -Fxq "$label"; then
-        if: steps.fetch_info.outputs.should_label == 'true' && !contains(steps.fetch_info.outputs.pr_labels, steps.fetch_info.outputs.backport_label)
+            echo "Label '$label' already present, skipping."
+            exit 0
+          fi
+
+          echo "Adding label: $label"
+          gh pr edit "$pr_number" --repo "$repo" --add-label "$label"
+
+      - name: Add backport label (release branch PRs opened by Mergify)
+        if: startsWith(env.PR_BASE_REF, 'release-harvester-v')
         env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_TOKEN: ${{ github.token }}
         run: |
-          echo "Adding label: ${{ steps.fetch_info.outputs.backport_label }}"
+          set -euo pipefail
-          gh pr edit ${{ github.event.pull_request.number }} \
-            --repo ${{ github.repository }} \
-            --add-label "${{ steps.fetch_info.outputs.backport_label }}"
 
-  add-backport-label:
+          IS_MERGIFY=$(echo "$PR_USER_LOGIN" | grep -iq 'mergify' && echo true || echo false)
-    if: github.event.pull_request.draft == false &&
-        startsWith(github.event.pull_request.base.ref, 'release-harvester-v')
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check conditions for backport label
-        id: check
-        run: |
-          IS_MERGIFY=$(echo '${{ github.event.pull_request.user.login }}' | grep -iq 'mergify' && echo true || echo false)
-          TARGET_BRANCH=${{ github.event.pull_request.base.ref }}
 
-          echo "IS_MERGIFY=$IS_MERGIFY" >> $GITHUB_OUTPUT
+          if [[ "$IS_MERGIFY" != "true" ]]; then
-          echo "TARGET_BRANCH=$TARGET_BRANCH" >> $GITHUB_OUTPUT
+            echo "PR author is not Mergify, skipping."
+            exit 0
+          fi
 
-      - name: Add label if needed
+          version="${PR_BASE_REF#release-harvester-v}"
-        if: steps.check.outputs.IS_MERGIFY == 'true' && startsWith(steps.check.outputs.TARGET_BRANCH, 'release-harvester-v')
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          TARGET_BRANCH="${{ steps.check.outputs.TARGET_BRANCH }}"
-          version="${TARGET_BRANCH#release-harvester-v}"
           label="backport/v${version}"
-          echo "Adding label $label"
+          echo "Adding label: $label"
-          gh pr edit ${{ github.event.pull_request.number }} \
+          gh pr edit "$PR_NUMBER" --repo "${{ github.repository }}" --add-label "$label"
-            --repo ${{ github.repository }} \
-            --add-label "$label"

.github/workflows/backport-request-check.yaml

@@ -0,0 +1,28 @@
+name: "[PR Management] Request Backport via Mergify Collect Data"
+
+on:
+  pull_request:
+    types: [closed]
+    branches: [main]
+
+jobs:
+  collect:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      actions: write
+    steps:
+      - name: Save PR data to artifact
+        run: |
+          labels_json='${{ toJson(github.event.pull_request.labels.*.name) }}'
+          {
+            echo "PR_NUMBER=${{ github.event.pull_request.number }}"
+            echo "PR_LABELS=$(echo "$labels_json" | jq -r '[.[]] | join(",")')"
+          } > pr-backport-request-data.env
+
+      - name: Upload PR data artifact
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        with:
+          name: pr-backport-request-data
+          path: pr-backport-request-data.env

.github/workflows/backport-request.yaml

@@ -1,41 +1,47 @@
 name: "[PR Management] Request Backport via Mergify"
 
 on:
-  pull_request_target:
+  workflow_run:
-    types: [closed]
+    workflows:
-    branches: [main]
+      - "[PR Management] Request Backport via Mergify Collect Data"
-
+    types: [completed]
-permissions:
-  pull-requests: write
 
 jobs:
   comment-backport:
-    if: github.event.pull_request.merged == true
     runs-on: ubuntu-latest
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    permissions:
+      actions: read
+      pull-requests: write
     steps:
-      - name: Checkout repository
+      - name: Download PR data artifact
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
         with:
-          ref: ${{ github.base_ref }}
+          name: pr-backport-request-data
+          run-id: ${{ github.event.workflow_run.id }}
+          github-token: ${{ github.token }}
+
+      - name: Load PR data
+        run: |
+          cat pr-backport-request-data.env >> $GITHUB_ENV
 
       - name: Post Mergify backport command
         env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_TOKEN: ${{ github.token }}
         run: |
           set -euo pipefail
 
-          pr_number=${{ github.event.pull_request.number }}
+          pr_number="$PR_NUMBER"
           repo="${{ github.repository }}"
 
-          labels_json='${{ toJson(github.event.pull_request.labels.*.name) }}'
+          labels=$(echo "$PR_LABELS" | tr ',' '\n')
-          labels=$(echo "$labels_json" | jq -r '.[] // empty')
 
           echo "Labels on PR: $labels"
 
           matches=$(echo "$labels" | grep -oE '^require backport/v[0-9]+\.[0-9]+$' || true)
 
           if [[ -z "$matches" ]]; then
-            echo "No back‑port labels found — skipping."
+            echo "No back-port labels found — skipping."
             exit 0
           fi
 

.github/workflows/release-label.yaml

@@ -1,30 +0,0 @@
-name: "[PR Management] Add PR Label"
-
-on:
-  pull_request_target:
-    types: [opened, reopened, edited]
-    branches:
-      - main
-      - 'release-harvester-v*'
-
-permissions:
-  pull-requests: write
-
-jobs:
-  auto-assign-pr-label:
-    if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
-        with:
-          ref: ${{ github.base_ref }}
-      - name: Setup Nodejs and yarn install
-        uses: ./.github/actions/setup
-      - name: Set PR label
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          PR_LABEL=$(node ./scripts/extract-release-label.mjs "${{ github.event.pull_request.title }}")
-          echo "PR_LABEL = $PR_LABEL"
-          gh pr edit ${{ github.event.pull_request.number }} --repo ${{ github.repository }}  --add-label "$PR_LABEL"