import { sprintf } from "../../../fmt/printf.ts";import { inspect } from "./inspect.mjs";
let debugImpls: Record<string, (...args: unknown[]) => void>;let testEnabled: (str: string) => boolean;
function initializeDebugEnv(debugEnv: string) { debugImpls = Object.create(null); if (debugEnv) { debugEnv = debugEnv.replace(/[|\\{}()[\]^$+?.]/g, "\\$&") .replaceAll("*", ".*") .replaceAll(",", "$|^"); const debugEnvRegex = new RegExp(`^${debugEnv}$`, "i"); testEnabled = (str) => debugEnvRegex.exec(str) !== null; } else { testEnabled = () => false; }}
function emitWarningIfNeeded(set: string) { if ("HTTP" === set || "HTTP2" === set) { console.warn( "Setting the NODE_DEBUG environment variable " + "to '" + set.toLowerCase() + "' can expose sensitive " + "data (such as passwords, tokens and authentication headers) " + "in the resulting log.", ); }}
const noop = () => {};
function debuglogImpl( enabled: boolean, set: string,): (...args: unknown[]) => void { if (debugImpls[set] === undefined) { if (enabled) { emitWarningIfNeeded(set); debugImpls[set] = function debug(...args: unknown[]) { const msg = args.map((arg) => inspect(arg)).join(" "); console.error(sprintf("%s %s: %s", set, String(Deno.pid), msg)); }; } else { debugImpls[set] = noop; } }
return debugImpls[set];}
export function debuglog( set: string, cb?: (debug: (...args: unknown[]) => void) => void,) { function init() { set = set.toUpperCase(); enabled = testEnabled(set); }
let debug = (...args: unknown[]): void => { init(); debug = debuglogImpl(enabled, set);
if (typeof cb === "function") { cb(debug); }
return debug(...args); };
let enabled: boolean; let test = () => { init(); test = () => enabled; return enabled; };
const logger = (...args: unknown[]) => debug(...args);
Object.defineProperty(logger, "enabled", { get() { return test(); }, configurable: true, enumerable: true, });
return logger;}
let debugEnv;try { debugEnv = Deno.env.get("NODE_DEBUG") ?? "";} catch (error) { if (error instanceof Deno.errors.PermissionDenied) { debugEnv = ""; } else { throw error; }}initializeDebugEnv(debugEnv);
export default { debuglog };