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This other process should call\n// 'Log.format' for nice output.\n//\n// When this is set to 'colored-text', call 'Log.format' before printing.\n// This should be used for logging from within satellite, since there is no\n// other process that will be reading its standard output.\nLog.outputFormat = 'json';\n\nconst LEVEL_COLORS = {\n  debug: 'green',\n  // leave info as the default color\n  warn: 'magenta',\n  error: 'red'\n};\n\nconst META_COLOR = 'blue';\n\n// Default colors cause readability problems on Windows Powershell,\n// switch to bright variants. While still capable of millions of\n// operations per second, the benchmark showed a 25%+ increase in\n// ops per second (on Node 8) by caching \"process.platform\".\nconst isWin32 = typeof process === 'object' && process.platform === 'win32';\nconst platformColor = (color) => {\n  if (isWin32 && typeof color === 'string' && !color.endsWith('Bright')) {\n    return `${color}Bright`;\n  }\n  return color;\n};\n\n// XXX package\nconst RESTRICTED_KEYS = ['time', 'timeInexact', 'level', 'file', 'line',\n                        'program', 'originApp', 'satellite', 'stderr'];\n\nconst FORMATTED_KEYS = [...RESTRICTED_KEYS, 'app', 'message'];\n\nconst logInBrowser = obj => {\n  const str = Log.format(obj);\n\n  // XXX Some levels should be probably be sent to the server\n  const level = obj.level;\n\n  if ((typeof console !== 'undefined') && console[level]) {\n    console[level](str);\n  } else {\n    // XXX Uses of Meteor._debug should probably be replaced by Log.debug or\n    //     Log.info, and we should have another name for \"do your best to\n    //     call call console.log\".\n    Meteor._debug(str);\n  }\n};\n\n// @returns {Object: { line: Number, file: String }}\nLog._getCallerDetails = () => {\n  const getStack = () => {\n    // We do NOT use Error.prepareStackTrace here (a V8 extension that gets us a\n    // pre-parsed stack) since it's impossible to compose it with the use of\n    // Error.prepareStackTrace used on the server for source maps.\n    const err = new Error;\n    const stack = err.stack;\n    return stack;\n  };\n\n  const stack = getStack();\n\n  if (!stack) {\n    return {};\n  }\n\n  // looking for the first line outside the logging package (or an\n  // eval if we find that first)\n  let line;\n  const lines = stack.split('\\n').slice(1);\n  for (line of lines) {\n    if (line.match(/^\\s*at eval \\(eval/)) {\n      return {file: \"eval\"};\n    }\n\n    if (!line.match(/packages\\/(?:local-test[:_])?logging(?:\\/|\\.js)/)) {\n      break;\n    }\n  }\n\n  const details = {};\n\n  // The format for FF is 'functionName@filePath:lineNumber'\n  // The format for V8 is 'functionName (packages/logging/logging.js:81)' or\n  //                      'packages/logging/logging.js:81'\n  const match = /(?:[@(]| at )([^(]+?):([0-9:]+)(?:\\)|$)/.exec(line);\n  if (!match) {\n    return details;\n  }\n\n  // in case the matched block here is line:column\n  details.line = match[2].split(':')[0];\n\n  // Possible format: https://foo.bar.com/scripts/file.js?random=foobar\n  // XXX: if you can write the following in better way, please do it\n  // XXX: what about evals?\n  details.file = match[1].split('/').slice(-1)[0].split('?')[0];\n\n  return details;\n};\n\n['debug', 'info', 'warn', 'error'].forEach((level) => {\n // @param arg {String|Object}\n Log[level] = (arg) => {\n  if (suppress) {\n    suppress--;\n    return;\n  }\n\n  let intercepted = false;\n  if (intercept) {\n    intercept--;\n    intercepted = true;\n  }\n\n  let obj = (arg === Object(arg)\n    && !(arg instanceof RegExp)\n    && !(arg instanceof Date))\n    ? arg\n    : { message: new String(arg).toString() };\n\n  RESTRICTED_KEYS.forEach(key => {\n    if (obj[key]) {\n      throw new Error(`Can't set '${key}' in log message`);\n    }\n  });\n\n  if (hasOwn.call(obj, 'message') && typeof obj.message !== 'string') {\n    throw new Error(\"The 'message' field in log objects must be a string\");\n  }\n\n  if (!obj.omitCallerDetails) {\n    obj = { ...Log._getCallerDetails(), ...obj };\n  }\n\n  obj.time = new Date();\n  obj.level = level;\n\n  // XXX allow you to enable 'debug', probably per-package\n  if (level === 'debug') {\n    return;\n  }\n\n  if (intercepted) {\n    interceptedLines.push(EJSON.stringify(obj));\n  } else if (Meteor.isServer) {\n    if (Log.outputFormat === 'colored-text') {\n      console.log(Log.format(obj, {color: true}));\n    } else if (Log.outputFormat === 'json') {\n      console.log(EJSON.stringify(obj));\n    } else {\n      throw new Error(`Unknown logging output format: ${Log.outputFormat}`);\n    }\n  } else {\n    logInBrowser(obj);\n  }\n};\n});\n\n\n// tries to parse line as EJSON. returns object if parse is successful, or null if not\nLog.parse = (line) => {\n  let obj = null;\n  if (line && line.startsWith('{')) { // might be json generated from calling 'Log'\n    try { obj = EJSON.parse(line); } catch (e) {}\n  }\n\n  // XXX should probably check fields other than 'time'\n  if (obj && obj.time && (obj.time instanceof Date)) {\n    return obj;\n  } else {\n    return null;\n  }\n};\n\n// formats a log object into colored human and machine-readable text\nLog.format = (obj, options = {}) => {\n  obj = { ...obj }; // don't mutate the argument\n  let {\n    time,\n    timeInexact,\n    level = 'info',\n    file,\n    line: lineNumber,\n    app: appName = '',\n    originApp,\n    message = '',\n    program = '',\n    satellite = '',\n    stderr = '',\n  } = obj;\n\n  if (!(time instanceof Date)) {\n    throw new Error(\"'time' must be a Date object\");\n  }\n\n  FORMATTED_KEYS.forEach((key) => { delete obj[key]; });\n\n  if (Object.keys(obj).length > 0) {\n    if (message) {\n      message += ' ';\n    }\n    message += EJSON.stringify(obj);\n  }\n\n  const pad2 = n => n.toString().padStart(2, '0');\n  const pad3 = n => n.toString().padStart(3, '0');\n\n  const dateStamp = time.getFullYear().toString() +\n    pad2(time.getMonth() + 1 /*0-based*/) +\n    pad2(time.getDate());\n  const timeStamp = pad2(time.getHours()) +\n        ':' +\n        pad2(time.getMinutes()) +\n        ':' +\n        pad2(time.getSeconds()) +\n        '.' +\n        pad3(time.getMilliseconds());\n\n  // eg in San Francisco in June this will be '(-7)'\n  const utcOffsetStr = `(${(-(new Date().getTimezoneOffset() / 60))})`;\n\n  let appInfo = '';\n  if (appName) {\n    appInfo += appName;\n  }\n  if (originApp && originApp !== appName) {\n    appInfo += ` via ${originApp}`;\n  }\n  if (appInfo) {\n    appInfo = `[${appInfo}] `;\n  }\n\n  const sourceInfoParts = [];\n  if (program) {\n    sourceInfoParts.push(program);\n  }\n  if (file) {\n    sourceInfoParts.push(file);\n  }\n  if (lineNumber) {\n    sourceInfoParts.push(lineNumber);\n  }\n\n  let sourceInfo = !sourceInfoParts.length ?\n    '' : `(${sourceInfoParts.join(':')}) `;\n\n  if (satellite)\n    sourceInfo += `[${satellite}]`;\n\n  const stderrIndicator = stderr ? '(STDERR) ' : '';\n\n  const metaPrefix = [\n    level.charAt(0).toUpperCase(),\n    dateStamp,\n    '-',\n    timeStamp,\n    utcOffsetStr,\n    timeInexact ? '? ' : ' ',\n    appInfo,\n    sourceInfo,\n    stderrIndicator].join('');\n\n  const prettify = function (line, color) {\n    return (options.color && Meteor.isServer && color) ?\n      require('cli-color')[color](line) : line;\n  };\n\n  return prettify(metaPrefix, platformColor(options.metaColor || META_COLOR)) +\n    prettify(message, platformColor(LEVEL_COLORS[level]));\n};\n\n// Turn a line of text into a loggable object.\n// @param line {String}\n// @param override {Object}\nLog.objFromText = (line, override) => {\n  return {\n    message: line,\n    level: 'info',\n    time: new Date(),\n    timeInexact: true,\n    ...override\n  };\n};\n\nexport { Log };\n"]}