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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@polkadot/util/cjs
Просмотр файла: logger.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.loggerFormat = loggerFormat;
exports.logger = logger;
const x_global_1 = require("@polkadot/x-global");
const formatDate_js_1 = require("./format/formatDate.js");
const bn_js_1 = require("./is/bn.js");
const buffer_js_1 = require("./is/buffer.js");
const function_js_1 = require("./is/function.js");
const object_js_1 = require("./is/object.js");
const u8a_js_1 = require("./is/u8a.js");
const toHex_js_1 = require("./u8a/toHex.js");
const toU8a_js_1 = require("./u8a/toU8a.js");
const noop_js_1 = require("./noop.js");
const logTo = {
debug: 'log',
error: 'error',
log: 'log',
warn: 'warn'
};
function formatOther(value) {
if (value && (0, object_js_1.isObject)(value) && value.constructor === Object) {
const result = {};
for (const [k, v] of Object.entries(value)) {
result[k] = loggerFormat(v);
}
return result;
}
return value;
}
function loggerFormat(value) {
if (Array.isArray(value)) {
return value.map(loggerFormat);
}
else if ((0, bn_js_1.isBn)(value)) {
return value.toString();
}
else if ((0, u8a_js_1.isU8a)(value) || (0, buffer_js_1.isBuffer)(value)) {
return (0, toHex_js_1.u8aToHex)((0, toU8a_js_1.u8aToU8a)(value));
}
return formatOther(value);
}
function formatWithLength(maxLength) {
return (v) => {
if (maxLength <= 0) {
return v;
}
const r = `${v}`;
return r.length < maxLength
? v
: `${r.substring(0, maxLength)} ...`;
};
}
function apply(log, type, values, maxSize = -1) {
if (values.length === 1 && (0, function_js_1.isFunction)(values[0])) {
const fnResult = values[0]();
return apply(log, type, Array.isArray(fnResult) ? fnResult : [fnResult], maxSize);
}
console[logTo[log]]((0, formatDate_js_1.formatDate)(new Date()), type, ...values
.map(loggerFormat)
.map(formatWithLength(maxSize)));
}
function isDebugOn(e, type) {
return !!e && (e === '*' ||
type === e ||
(e.endsWith('*') &&
type.startsWith(e.slice(0, -1))));
}
function isDebugOff(e, type) {
return !!e && (e.startsWith('-') &&
(type === e.slice(1) ||
(e.endsWith('*') &&
type.startsWith(e.slice(1, -1)))));
}
function getDebugFlag(env, type) {
let flag = false;
for (const e of env) {
if (isDebugOn(e, type)) {
flag = true;
}
else if (isDebugOff(e, type)) {
flag = false;
}
}
return flag;
}
function parseEnv(type) {
const maxSize = parseInt(x_global_1.xglobal.process?.env?.['DEBUG_MAX'] || '-1', 10);
return [
getDebugFlag((x_global_1.xglobal.process?.env?.['DEBUG'] || '').toLowerCase().split(','), type),
isNaN(maxSize)
? -1
: maxSize
];
}
/**
* @name Logger
* @summary Creates a consistent log interface for messages
* @description
* Returns a `Logger` that has `.log`, `.error`, `.warn` and `.debug` (controlled with environment `DEBUG=typeA,typeB`) methods. Logging is done with a consistent prefix (type of logger, date) followed by the actual message using the underlying console.
* @example
* <BR>
*
* ```javascript
* import { logger } from '@polkadot/util';
*
* const l = logger('test');
* ```
*/
function logger(origin) {
const type = `${origin.toUpperCase()}:`.padStart(16);
const [isDebug, maxSize] = parseEnv(origin.toLowerCase());
return {
debug: isDebug
? (...values) => apply('debug', type, values, maxSize)
: noop_js_1.noop,
error: (...values) => apply('error', type, values),
log: (...values) => apply('log', type, values),
noop: noop_js_1.noop,
warn: (...values) => apply('warn', type, values)
};
}
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