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- // Originally from Definitely Typed, see:
- // https://github.com/DefinitelyTyped/DefinitelyTyped/blob/b4683d7/types/loglevel/index.d.ts
- // Original definitions by: Stefan Profanter <https://github.com/Pro>
- // Gabor Szmetanko <https://github.com/szmeti>
- // Christian Rackerseder <https://github.com/screendriver>
-
- declare const log: log.RootLogger;
- export = log;
-
- declare namespace log {
- /**
- * Log levels
- */
- interface LogLevel {
- TRACE: 0;
- DEBUG: 1;
- INFO: 2;
- WARN: 3;
- ERROR: 4;
- SILENT: 5;
- }
-
- /**
- * Possible log level numbers.
- */
- type LogLevelNumbers = LogLevel[keyof LogLevel];
-
- /**
- * Possible log level descriptors, may be string, lower or upper case, or number.
- */
- type LogLevelDesc = LogLevelNumbers
- | 'trace'
- | 'debug'
- | 'info'
- | 'warn'
- | 'error'
- | 'silent'
- | keyof LogLevel;
-
- type LoggingMethod = (...message: any[]) => void;
-
- type MethodFactory = (methodName: string, level: LogLevelNumbers, loggerName: string) => LoggingMethod;
-
- interface RootLogger extends Logger {
- /**
- * If you're using another JavaScript library that exposes a 'log' global, you can run into conflicts with loglevel.
- * Similarly to jQuery, you can solve this by putting loglevel into no-conflict mode immediately after it is loaded
- * onto the page. This resets to 'log' global to its value before loglevel was loaded (typically undefined), and
- * returns the loglevel object, which you can then bind to another name yourself.
- */
- noConflict(): any;
-
- /**
- * This gets you a new logger object that works exactly like the root log object, but can have its level and
- * logging methods set independently. All loggers must have a name (which is a non-empty string). Calling
- * getLogger() multiple times with the same name will return an identical logger object.
- * In large applications, it can be incredibly useful to turn logging on and off for particular modules as you are
- * working with them. Using the getLogger() method lets you create a separate logger for each part of your
- * application with its own logging level. Likewise, for small, independent modules, using a named logger instead
- * of the default root logger allows developers using your module to selectively turn on deep, trace-level logging
- * when trying to debug problems, while logging only errors or silencing logging altogether under normal
- * circumstances.
- * @param name The name of the produced logger
- */
- getLogger(name: string): Logger;
-
- /**
- * This will return you the dictionary of all loggers created with getLogger, keyed off of their names.
- */
- getLoggers(): { [name: string]: Logger };
- }
-
- interface Logger {
- /**
- * Available log levels.
- */
- readonly levels: LogLevel;
-
- /**
- * Plugin API entry point. This will be called for each enabled method each time the level is set
- * (including initially), and should return a MethodFactory to be used for the given log method, at the given level,
- * for a logger with the given name. If you'd like to retain all the reliability and features of loglevel, it's
- * recommended that this wraps the initially provided value of log.methodFactory
- */
- methodFactory: MethodFactory;
-
- /**
- * Output trace message to console.
- * This will also include a full stack trace
- *
- * @param msg any data to log to the console
- */
- trace(...msg: any[]): void;
-
- /**
- * Output debug message to console including appropriate icons
- *
- * @param msg any data to log to the console
- */
- debug(...msg: any[]): void;
-
- /**
- * Output info message to console including appropriate icons
- *
- * @param msg any data to log to the console
- */
- info(...msg: any[]): void;
-
- /**
- * Output warn message to console including appropriate icons
- *
- * @param msg any data to log to the console
- */
- warn(...msg: any[]): void;
-
- /**
- * Output error message to console including appropriate icons
- *
- * @param msg any data to log to the console
- */
- error(...msg: any[]): void;
-
- /**
- * This disables all logging below the given level, so that after a log.setLevel("warn") call log.warn("something")
- * or log.error("something") will output messages, but log.info("something") will not.
- *
- * @param level as a string, like 'error' (case-insensitive) or as a number from 0 to 5 (or as log.levels. values)
- * @param persist Where possible the log level will be persisted. LocalStorage will be used if available, falling
- * back to cookies if not. If neither is available in the current environment (i.e. in Node), or if you pass
- * false as the optional 'persist' second argument, persistence will be skipped.
- */
- setLevel(level: LogLevelDesc, persist?: boolean): void;
-
- /**
- * Returns the current logging level, as a value from LogLevel.
- * It's very unlikely you'll need to use this for normal application logging; it's provided partly to help plugin
- * development, and partly to let you optimize logging code as below, where debug data is only generated if the
- * level is set such that it'll actually be logged. This probably doesn't affect you, unless you've run profiling
- * on your code and you have hard numbers telling you that your log data generation is a real performance problem.
- */
- getLevel(): LogLevel[keyof LogLevel];
-
- /**
- * This sets the current log level only if one has not been persisted and can’t be loaded. This is useful when
- * initializing scripts; if a developer or user has previously called setLevel(), this won’t alter their settings.
- * For example, your application might set the log level to error in a production environment, but when debugging
- * an issue, you might call setLevel("trace") on the console to see all the logs. If that error setting was set
- * using setDefaultLevel(), it will still say as trace on subsequent page loads and refreshes instead of resetting
- * to error.
- *
- * The level argument takes is the same values that you might pass to setLevel(). Levels set using
- * setDefaultLevel() never persist to subsequent page loads.
- *
- * @param level as a string, like 'error' (case-insensitive) or as a number from 0 to 5 (or as log.levels. values)
- */
- setDefaultLevel(level: LogLevelDesc): void;
-
- /**
- * This enables all log messages, and is equivalent to log.setLevel("trace").
- *
- * @param persist Where possible the log level will be persisted. LocalStorage will be used if available, falling
- * back to cookies if not. If neither is available in the current environment (i.e. in Node), or if you pass
- * false as the optional 'persist' second argument, persistence will be skipped.
- */
- enableAll(persist?: boolean): void;
-
- /**
- * This disables all log messages, and is equivalent to log.setLevel("silent").
- *
- * @param persist Where possible the log level will be persisted. LocalStorage will be used if available, falling
- * back to cookies if not. If neither is available in the current environment (i.e. in Node), or if you pass
- * false as the optional 'persist' second argument, persistence will be skipped.
- */
- disableAll(persist?: boolean): void;
- }
- }
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