refactor: update script command to get git branch

Author: jsjoeio

ci/build/release-prep.sh

@@ -93,10 +93,10 @@ main() {
 
   $CMD git add . && $CMD git commit -am "chore(release): bump version to $CODE_SERVER_VERSION_TO_UPDATE"
 
-  CURRENT_BRANCH=$(git branch --show-current)
+  CURRENT_BRANCH=$(git branch | grep '\*' | cut -d' ' -f2-)
   # Note: we need to set upstream as well or the gh pr create step will fail
   # See: https://github.com/cli/cli/issues/575
-  $CMD git push -u origin "$CURRENT_BRANCH"
+  $CMD git push -u origin "$CURRENT_BRANCH
 
   # This runs from the root so that's why we use this path vs. ../../
   RELEASE_TEMPLATE_STRING=$(cat ./.github/PULL_REQUEST_TEMPLATE/release_template.md)

ci/dev/update-vscode.sh

@@ -81,7 +81,7 @@ main() {
   # Push branch to remote if not already pushed
   # If we don't do this, the opening a draft PR step won't work
   # because it will stop and ask where you want to push the branch
-  CURRENT_BRANCH=$(git branch --show-current)
+  CURRENT_BRANCH=$(git branch | grep '\*' | cut -d' ' -f2-)
   if [[ -z $(git ls-remote --heads origin "$CURRENT_BRANCH") ]]; then
     echo "Doesn't look like you've pushed this branch to remote"
     echo -e "Pushing now using: git push origin $CURRENT_BRANCH\n"