From 474507b2047218b7f38463676db6a6bc6ec9ad3f Mon Sep 17 00:00:00 2001
From: Cayman <caymannava@gmail.com>
Date: Tue, 31 May 2022 22:20:18 -0500
Subject: [PATCH] Add bash assert_valid_rc script

---
 .github/workflows/publish-rc.yml   |  2 +-
 scripts/release/assert_valid_rc.sh | 28 ++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100755 scripts/release/assert_valid_rc.sh

diff --git a/.github/workflows/publish-rc.yml b/.github/workflows/publish-rc.yml
index 5c81626ff734..06cd3e4ea02d 100644
--- a/.github/workflows/publish-rc.yml
+++ b/.github/workflows/publish-rc.yml
@@ -32,7 +32,7 @@ jobs:
 
       - name: Determine release type
         id: is_rc
-        run: node scripts/release/assert_valid_rc.mjs
+        run: scripts/release/assert_valid_rc.sh
         env:
           TAG: ${{ steps.get_tag.outputs.tag }}
 
diff --git a/scripts/release/assert_valid_rc.sh b/scripts/release/assert_valid_rc.sh
new file mode 100755
index 000000000000..917a1c9184a0
--- /dev/null
+++ b/scripts/release/assert_valid_rc.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+# Asserts whether a tag is a valid release candidate or not
+# This script is meant to be run by a github workflow
+# The output of this script is to either set github variables or not
+
+set -e
+
+COMMIT=$TAG
+echo "Tag: $TAG"
+
+# assert it matches proper format vX.X.X-rc.X
+RC_REGEX="^v(([0-9]+\.[0-9]+\.[0-9]+)-rc\.[0-9])+$"
+
+if [[ $TAG =~ $RC_REGEX ]]; then
+  VERSION=${BASH_REMATCH[1]}
+  RC_BRANCH="rc/v${BASH_REMATCH[2]}"
+else
+  exit
+fi
+
+# assert it exists in branch
+HEAD_COMMIT=$(git rev-parse refs/heads/$RC_BRANCH)
+git merge-base --is-ancestor $COMMIT $HEAD_COMMIT
+
+# success
+echo "::set-output name=is_rc::true"
+echo "::set-output name=version::$VERSION"