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adding merge queue workflow #986

adding merge queue workflow

adding merge queue workflow #986

name: Build SDK
on:
pull_request:
types: [ opened, synchronize, ready_for_review ]
merge_group:
concurrency:
group: start-pull-request-build-${{ github.ref }}
cancel-in-progress: true
env:
# constants
IAM_ROLE_ARN: 'arn:aws:iam::246442084943:role/AwsSdkCppGitHubRole'
DOWNLOAD_FOLDER: '.build-scripts/'
SCRIPT_LOCATION: 'workflows/start-pull-request-build/pull-request-build-v1.sh'
jobs:
aws-sdk-pr-build:
if: github.event.pull_request.draft == false || github.event_name == 'merge_group'
runs-on: ubuntu-latest
permissions:
id-token: write
issues: write
pull-requests: write
contents: read
steps:
- name: Checkout merge group (shallow)
if: github.event_name == 'merge_group'
uses: actions/checkout@v4
with:
fetch-depth: 2
- name: Check if merge queue build is needed
if: github.event_name == 'merge_group'
id: queue-check
env:
GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
HEAD_REF: ${{ github.event.merge_group.head_ref }}
REPO: ${{ github.repository }}
run: |
PR_NUM=$(echo "$HEAD_REF" | grep -oP 'pr-\K[0-9]+')
PR_BASE_SHA=$(gh api "repos/$REPO/pulls/$PR_NUM" --jq '.base.sha')
PARENT_SHA=$(git rev-parse HEAD~1)
echo "PR #$PR_NUM base SHA: $PR_BASE_SHA"
echo "Merge group HEAD~1: $PARENT_SHA"
if [ "$PARENT_SHA" == "$PR_BASE_SHA" ]; then
echo "skip=true" >> "$GITHUB_OUTPUT"
echo "First in queue, same base — PR build already validated this, skipping."
else
echo "skip=false" >> "$GITHUB_OUTPUT"
echo "Other PRs ahead or base moved — build needed."
fi
- name: Configure AWS Credentials
if: steps.queue-check.outputs.skip != 'true'
uses: aws-actions/configure-aws-credentials@main
with:
role-to-assume: ${{ env.IAM_ROLE_ARN }}
role-session-name: PullRequestBuildGitHubAction
aws-region: us-west-2
role-duration-seconds: 7200
- name: Download Build Script
if: steps.queue-check.outputs.skip != 'true'
run: |
aws s3 cp s3://aws-sdk-builds-github-assets-prod-us-west-2/$SCRIPT_LOCATION ./$DOWNLOAD_FOLDER/$SCRIPT_LOCATION --no-progress
chmod +x ./$DOWNLOAD_FOLDER/$SCRIPT_LOCATION
- name: Build
if: steps.queue-check.outputs.skip != 'true'
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
REPO: ${{ github.repository }}
HEAD_REF: ${{ github.event.pull_request.head.ref || github.event.merge_group.head_ref }}
PR_NUMBER: ${{ github.event.pull_request.number || '0' }}
RUN_ID: ${{ github.run_id }}
run: |
HEAD_REF="${HEAD_REF#refs/heads/}"
./$DOWNLOAD_FOLDER/$SCRIPT_LOCATION \
--repo "$REPO" \
--branch "$HEAD_REF" \
--pr-number "$PR_NUMBER" \
--run-id "$RUN_ID"
timeout-minutes: 180