From f801ed5560782d29f50509b0c24889876483c7d5 Mon Sep 17 00:00:00 2001
From: Omkar Salpekar <osalpekar@fb.com>
Date: Thu, 31 Aug 2023 19:12:11 -0700
Subject: [PATCH 1/2] Automate Release-Only Changes

---
 packaging/cut_release.sh | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100755 packaging/cut_release.sh

diff --git a/packaging/cut_release.sh b/packaging/cut_release.sh
new file mode 100755
index 0000000000..09f9cb5cd0
--- /dev/null
+++ b/packaging/cut_release.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+#
+# Usage:
+# TEST_INFRA_BRANCH=release/2.1 RELEASE_BRANCH=release/2.1 RELEASE_VERSION=2.1.0 cut_release.sh
+#
+# TEST_INFRA_BRANCH: The release branch of test-infra that houses all reusable
+# workflows
+#
+# RELEASE_BRANCH: The name of the release branch for this repo
+#
+# RELEASE_VERSION: Version of this current release
+
+set -eou pipefail
+
+# Create and Check out to Release Branch
+git checkout -b "${RELEASE_BRANCH}"
+
+# Change all GitHub Actions to reference the test-infra release branch
+# as opposed to main.
+for i in .github/workflows/*.yml; do 
+  if [[ "$OSTYPE" == "darwin"* ]]; then
+    sed -i '' -e s#@main#@"${TEST_INFRA_BRANCH}"# $i;
+    sed -i '' -e s#test-infra-ref:[[:space:]]main#"test-infra-ref: ${TEST_INFRA_BRANCH}"# $i;
+  else
+    sed -i -e s#@main#@"${TEST_INFRA_BRANCH}"# $i;
+    sed -i -e s#test-infra-ref:[[:space:]]main#"test-infra-ref: ${TEST_INFRA_BRANCH}"# $i;
+  fi
+done
+
+# Update the Release Version in version.txt
+echo "${RELEASE_VERSION}" >version.txt
+
+# Optional
+# git add ./github/workflows/*.yml version.txt
+# git commit -m "[RELEASE-ONLY CHANGES] Branch Cut for Release {RELEASE_VERSION}"
+# git push origin "${RELEASE_BRANCH}"

From 39756e1be00e91aae38e4743c42f5d654773b8b7 Mon Sep 17 00:00:00 2001
From: Omkar Salpekar <osalpekar@fb.com>
Date: Thu, 31 Aug 2023 19:13:19 -0700
Subject: [PATCH 2/2] update usage

---
 packaging/cut_release.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packaging/cut_release.sh b/packaging/cut_release.sh
index 09f9cb5cd0..91e0e5ff15 100755
--- a/packaging/cut_release.sh
+++ b/packaging/cut_release.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 #
-# Usage:
-# TEST_INFRA_BRANCH=release/2.1 RELEASE_BRANCH=release/2.1 RELEASE_VERSION=2.1.0 cut_release.sh
+# Usage (run from root of project):
+# TEST_INFRA_BRANCH=release/2.1 RELEASE_BRANCH=release/2.1 RELEASE_VERSION=2.1.0 packaging/cut_release.sh
 #
 # TEST_INFRA_BRANCH: The release branch of test-infra that houses all reusable
 # workflows