79 lines
1.7 KiB
JavaScript
79 lines
1.7 KiB
JavaScript
/** @typedef {"info" | "warning" | "error"} LogLevel */
|
|
|
|
/** @type {LogLevel} */
|
|
var logLevel = "info";
|
|
|
|
function dummy() {}
|
|
|
|
/**
|
|
* @param {LogLevel} level log level
|
|
* @returns {boolean} true, if should log
|
|
*/
|
|
function shouldLog(level) {
|
|
var shouldLog =
|
|
(logLevel === "info" && level === "info") ||
|
|
(["info", "warning"].indexOf(logLevel) >= 0 && level === "warning") ||
|
|
(["info", "warning", "error"].indexOf(logLevel) >= 0 && level === "error");
|
|
return shouldLog;
|
|
}
|
|
|
|
/**
|
|
* @param {(msg?: string) => void} logFn log function
|
|
* @returns {(level: LogLevel, msg?: string) => void} function that logs when log level is sufficient
|
|
*/
|
|
function logGroup(logFn) {
|
|
return function (level, msg) {
|
|
if (shouldLog(level)) {
|
|
logFn(msg);
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* @param {LogLevel} level log level
|
|
* @param {string|Error} msg message
|
|
*/
|
|
module.exports = function (level, msg) {
|
|
if (shouldLog(level)) {
|
|
if (level === "info") {
|
|
console.log(msg);
|
|
} else if (level === "warning") {
|
|
console.warn(msg);
|
|
} else if (level === "error") {
|
|
console.error(msg);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* @param {Error} err error
|
|
* @returns {string} formatted error
|
|
*/
|
|
module.exports.formatError = function (err) {
|
|
var message = err.message;
|
|
var stack = err.stack;
|
|
if (!stack) {
|
|
return message;
|
|
} else if (stack.indexOf(message) < 0) {
|
|
return message + "\n" + stack;
|
|
}
|
|
return stack;
|
|
};
|
|
|
|
var group = console.group || dummy;
|
|
var groupCollapsed = console.groupCollapsed || dummy;
|
|
var groupEnd = console.groupEnd || dummy;
|
|
|
|
module.exports.group = logGroup(group);
|
|
|
|
module.exports.groupCollapsed = logGroup(groupCollapsed);
|
|
|
|
module.exports.groupEnd = logGroup(groupEnd);
|
|
|
|
/**
|
|
* @param {LogLevel} level log level
|
|
*/
|
|
module.exports.setLogLevel = function (level) {
|
|
logLevel = level;
|
|
};
|