fix: support branch other than master (#9)

Fix #7

Author: wei

git-sync.sh

@@ -33,4 +33,11 @@ echo "DESTINATION=$DESTINATION_REPO:$DESTINATION_BRANCH"
 
 git clone "$SOURCE_REPO" source --origin source && cd source
 git remote add destination "$DESTINATION_REPO"
+
+# Pull all branches references down locally so subsequent commands can see them
+git fetch source '+refs/heads/*:refs/heads/*' --update-head-ok
+
+# Print out all branches
+git --no-pager branch -a -vv
+
 git push destination "${SOURCE_BRANCH}:${DESTINATION_BRANCH}" -f