@backstage/backend-defaults/dist/entrypoints/rootLogger/utils.cjs.js

Backend defaults used by Backstage backend apps

'use strict';

const parseRegex = (s) => {
  if (!s.startsWith("/")) return null;
  const lastSlash = s.lastIndexOf("/");
  if (lastSlash <= 0) return null;
  const pattern = s.slice(1, lastSlash);
  const flags = s.slice(lastSlash + 1);
  try {
    return new RegExp(pattern, flags);
  } catch {
    return null;
  }
};
const createLogFieldMatcher = (matcher) => {
  if (Array.isArray(matcher)) {
    const fns = matcher.map((m) => createLogFieldMatcher(m));
    return (logField) => fns.some((fn) => fn(logField));
  }
  if (typeof matcher !== "string") {
    return (logField) => logField === matcher;
  }
  const regex = parseRegex(matcher);
  if (regex) {
    return (logField) => typeof logField === "string" && regex.test(logField);
  }
  return (logField) => logField === matcher;
};
const createLogMatcher = (matchers) => {
  const logFieldMatchers = Object.entries(matchers).map(([key, m]) => {
    const fn = createLogFieldMatcher(m);
    return [key, fn];
  });
  return (log) => logFieldMatchers.every(([key, fn]) => fn(log[key]));
};

exports.createLogMatcher = createLogMatcher;
//# sourceMappingURL=utils.cjs.js.map