| var logLevel = "info"; |
| |
| function dummy() {} |
| |
| 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; |
| } |
| |
| function logGroup(logFn) { |
| return function(level, msg) { |
| if (shouldLog(level)) { |
| logFn(msg); |
| } |
| }; |
| } |
| |
| 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); |
| } |
| } |
| }; |
| |
| /* eslint-disable node/no-unsupported-features/node-builtins */ |
| var group = console.group || dummy; |
| var groupCollapsed = console.groupCollapsed || dummy; |
| var groupEnd = console.groupEnd || dummy; |
| /* eslint-enable node/no-unsupported-features/node-builtins */ |
| |
| module.exports.group = logGroup(group); |
| |
| module.exports.groupCollapsed = logGroup(groupCollapsed); |
| |
| module.exports.groupEnd = logGroup(groupEnd); |
| |
| module.exports.setLogLevel = function(level) { |
| logLevel = level; |
| }; |
| |
| 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; |
| } else { |
| return stack; |
| } |
| }; |