“use strict”;

Object.defineProperty(exports, “__esModule”, {

value: true

}); exports.makeStaticFileCache = makeStaticFileCache;

function _fs() {

const data = _interopRequireDefault(require("fs"));

_fs = function () {
  return data;
};

return data;

}

var _caching = require(“../caching”);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function makeStaticFileCache(fn) {

return (0, _caching.makeStrongCache)((filepath, cache) => {
  if (cache.invalidate(() => fileMtime(filepath)) === null) {
    cache.forever();
    return null;
  }

  return fn(filepath, _fs().default.readFileSync(filepath, "utf8"));
});

}

function fileMtime(filepath) {

try {
  return +_fs().default.statSync(filepath).mtime;
} catch (e) {
  if (e.code !== "ENOENT" && e.code !== "ENOTDIR") throw e;
}

return null;

}