From f73ba9a9bac23f8bb272ad2799deb97ce6379b95 Mon Sep 17 00:00:00 2001
From: smilkuri <smilkuri@amazon.com>
Date: Wed, 3 Sep 2025 19:05:22 +0000
Subject: [PATCH 1/3] chore(ci): integrate build workflow for PRs

---
 .github/workflows/pull-request-build.yml | 45 ++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 .github/workflows/pull-request-build.yml

diff --git a/.github/workflows/pull-request-build.yml b/.github/workflows/pull-request-build.yml
new file mode 100644
index 00000000000..61d3b107654
--- /dev/null
+++ b/.github/workflows/pull-request-build.yml
@@ -0,0 +1,45 @@
+name: Build SDK
+on:
+  pull_request_review:
+    types: [ submitted ]
+    branches: [ main ]
+
+concurrency:
+  group: start-pull-request-build-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  IAM_ROLE_ARN: 'arn:aws:iam::088667348242:role/AwsSdkJsV3GitHubRole'
+  DOWNLOAD_FOLDER: '.build-scripts/'
+  SCRIPT_LOCATION: 'workflows/start-pull-request-build/pull-request-build-v1.sh'
+
+jobs:
+  aws-sdk-pr-build:
+    if: github.event.review.state == 'approved'
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      issues: write
+      pull-requests: write
+      contents: read
+    steps:
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ env.IAM_ROLE_ARN }}
+          role-session-name: PullRequestBuildGitHubAction
+          aws-region: us-west-2
+      - name: Download Build Script
+        run: |
+          aws s3 cp s3://aws-sdk-builds-github-assets-prod-us-west-2/$SCRIPT_LOCATION ./$DOWNLOAD_FOLDER/$SCRIPT_LOCATION --no-progress
+          chmod +x ./$DOWNLOAD_FOLDER/$SCRIPT_LOCATION
+      - name: Build
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          ./$DOWNLOAD_FOLDER/$SCRIPT_LOCATION \
+            --repo "${{ github.repository }}" \
+            --branch "${{ github.event.pull_request.head.ref }}" \
+            --pr-number "${{ github.event.pull_request.number }}" \
+            --run-id "${{ github.run_id }}"
+        timeout-minutes: 510 # 8.5 hours
\ No newline at end of file

From 78917332865a7bd5e0b618a86542a2e14c0e1b21 Mon Sep 17 00:00:00 2001
From: smilkuri <smilkuri@amazon.com>
Date: Thu, 4 Sep 2025 11:41:24 +0000
Subject: [PATCH 2/3] chore(ci): increase token expiration to 2 hrs

---
 .github/workflows/pull-request-build.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/pull-request-build.yml b/.github/workflows/pull-request-build.yml
index 61d3b107654..e74f7833594 100644
--- a/.github/workflows/pull-request-build.yml
+++ b/.github/workflows/pull-request-build.yml
@@ -29,6 +29,7 @@ jobs:
           role-to-assume: ${{ env.IAM_ROLE_ARN }}
           role-session-name: PullRequestBuildGitHubAction
           aws-region: us-west-2
+          role-duration-seconds: 7200
       - name: Download Build Script
         run: |
           aws s3 cp s3://aws-sdk-builds-github-assets-prod-us-west-2/$SCRIPT_LOCATION ./$DOWNLOAD_FOLDER/$SCRIPT_LOCATION --no-progress
@@ -42,4 +43,4 @@ jobs:
             --branch "${{ github.event.pull_request.head.ref }}" \
             --pr-number "${{ github.event.pull_request.number }}" \
             --run-id "${{ github.run_id }}"
-        timeout-minutes: 510 # 8.5 hours
\ No newline at end of file
+        timeout-minutes: 120 # 2 hours
\ No newline at end of file

From e91c8af1a3b89f27f1a32987449e47a26eddba1e Mon Sep 17 00:00:00 2001
From: Sreeja Milkuri <smilkuri@amazon.com>
Date: Fri, 5 Sep 2025 10:16:44 -0400
Subject: [PATCH 3/3] prevent code injection in GitHub workflow actions

---
 .github/workflows/pull-request-build.yml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/pull-request-build.yml b/.github/workflows/pull-request-build.yml
index e74f7833594..1888f614d62 100644
--- a/.github/workflows/pull-request-build.yml
+++ b/.github/workflows/pull-request-build.yml
@@ -37,10 +37,11 @@ jobs:
       - name: Build
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          HEAD_REF: ${{ github.event.pull_request.head.ref }}
         run: |
           ./$DOWNLOAD_FOLDER/$SCRIPT_LOCATION \
             --repo "${{ github.repository }}" \
-            --branch "${{ github.event.pull_request.head.ref }}" \
+            --branch "$HEAD_REF" \
             --pr-number "${{ github.event.pull_request.number }}" \
             --run-id "${{ github.run_id }}"
-        timeout-minutes: 120 # 2 hours
\ No newline at end of file
+        timeout-minutes: 120 # 2 hours