try env variable

Author: Sophia Marie Terry

.github/scripts/ipa_version_check.sh

@@ -3,7 +3,7 @@ set -eou pipefail
 
 current_version=$(jq -r '.version' tools/spectral/ipa/package.json)  
 
-previous_version=$(git show origin/main:tools/spectral/ipa/package.json | jq -r '.version')  
+previous_version=$(git show origin/"${BASE_BRANCH}":tools/spectral/ipa/package.json | jq -r '.version')  
 
 if [[ -z "$previous_version" || "$previous_version" == "null" ]]; then  
   previous_version="none"  

.github/workflows/ipa-changelog.yml

@@ -20,6 +20,8 @@ jobs:
         
     - name: Fetch Versions
       id: version_check
+      env:   
+        BASE_BRANCH: ${{ github.event.pull_request.base.ref }}
       run: |
         chmod +x ./.github/scripts/ipa_version_check.sh 
         version_changed=$(./.github/scripts/ipa_version_check.sh)