#!/usr/bin/env bash
set -o pipefail -o errexit

# If a patch was not provided, try to choose one
if [[ -z ${PATCH_NAME} ]]; then
    # If a patch with the same name as the ref exists, use it
    if [ -f "../patches/${VAULT_VERSION}.patch" ]; then
        echo "Exact patch file found, using that"
        PATCH_NAME="${VAULT_VERSION}.patch"
    else
        echo "Patch file not found, using latest"
        # If not, use the latest one
        PATCH_NAME="$(find ../patches -printf "%f\\n" | sort -V | tail -n1)"
    fi
fi

echo "Using patch: ${PATCH_NAME}"
git apply "../patches/${PATCH_NAME}" --reject
echo "Patching successful!"