Function merge2

out/cli.cjs:27943–27990

(target, source, options)

      return obj;
    };
    var merge2 = function merge3(target, source, options) {
      if (!source) {
        return target;
      }
      if (typeof source !== "object") {
        if (isArray2(target)) {
          target.push(source);
        } else if (target && typeof target === "object") {
          if (options && (options.plainObjects || options.allowPrototypes) || !has.call(Object.prototype, source)) {
            target[source] = true;
          }
        } else {
          return [target, source];
        }
        return target;
      }
      if (!target || typeof target !== "object") {
        return [target].concat(source);
      }
      var mergeTarget = target;
      if (isArray2(target) && !isArray2(source)) {
        mergeTarget = arrayToObject2(target, options);
      }
      if (isArray2(target) && isArray2(source)) {
        source.forEach(function(item, i3) {
          if (has.call(target, i3)) {
            var targetItem = target[i3];
            if (targetItem && typeof targetItem === "object" && item && typeof item === "object") {
              target[i3] = merge3(targetItem, item, options);
            } else {
              target.push(item);
            }
          } else {
            target[i3] = item;
          }
        });
        return target;
      }
      return Object.keys(source).reduce(function(acc, key) {
        var value = source[key];
        if (has.call(acc, key)) {
          acc[key] = merge3(acc[key], value, options);
        } else {
          acc[key] = value;
        }
        return acc;
      }, mergeTarget);
    };
    var assign = function assignSingleSource(target, source) {
      return Object.keys(source).reduce(function(acc, key) {
        acc[key] = source[key];