aws-cdk
Version:
CDK Toolkit, the command line tool for CDK apps
101 lines • 12.4 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.prefix = exports.data = exports.print = exports.highlight = exports.success = exports.warning = exports.error = exports.debug = exports.trace = exports.increaseVerbosity = exports.setCI = exports.setLogLevel = exports.CI = exports.logLevel = exports.LogLevel = exports.withCorkedLogging = void 0;
const util = require("util");
const chalk = require("chalk");
const { stdout, stderr } = process;
async function withCorkedLogging(block) {
corkLogging();
try {
return await block();
}
finally {
uncorkLogging();
}
}
exports.withCorkedLogging = withCorkedLogging;
let CORK_COUNTER = 0;
const logBuffer = [];
function corked() {
return CORK_COUNTER !== 0;
}
function corkLogging() {
CORK_COUNTER += 1;
}
function uncorkLogging() {
CORK_COUNTER -= 1;
if (!corked()) {
logBuffer.forEach(([stream, str]) => stream.write(str + '\n'));
logBuffer.splice(0);
}
}
const logger = (stream, styles, timestamp) => (fmt, ...args) => {
const ts = timestamp ? `[${formatTime(new Date())}] ` : '';
let str = ts + util.format(fmt, ...args);
if (styles && styles.length) {
str = styles.reduce((a, style) => style(a), str);
}
const realStream = typeof stream === 'function' ? stream() : stream;
// Logger is currently corked, so we store the message to be printed
// later when we are uncorked.
if (corked()) {
logBuffer.push([realStream, str]);
return;
}
realStream.write(str + '\n');
};
function formatTime(d) {
return `${lpad(d.getHours(), 2)}:${lpad(d.getMinutes(), 2)}:${lpad(d.getSeconds(), 2)}`;
function lpad(x, w) {
const s = `${x}`;
return '0'.repeat(Math.max(w - s.length, 0)) + s;
}
}
var LogLevel;
(function (LogLevel) {
/** Not verbose at all */
LogLevel[LogLevel["DEFAULT"] = 0] = "DEFAULT";
/** Pretty verbose */
LogLevel[LogLevel["DEBUG"] = 1] = "DEBUG";
/** Extremely verbose */
LogLevel[LogLevel["TRACE"] = 2] = "TRACE";
})(LogLevel || (exports.LogLevel = LogLevel = {}));
exports.logLevel = LogLevel.DEFAULT;
exports.CI = false;
function setLogLevel(newLogLevel) {
exports.logLevel = newLogLevel;
}
exports.setLogLevel = setLogLevel;
function setCI(newCI) {
exports.CI = newCI;
}
exports.setCI = setCI;
function increaseVerbosity() {
exports.logLevel += 1;
}
exports.increaseVerbosity = increaseVerbosity;
const stream = () => exports.CI ? stdout : stderr;
const _debug = logger(stream, [chalk.gray], true);
const trace = (fmt, ...args) => exports.logLevel >= LogLevel.TRACE && _debug(fmt, ...args);
exports.trace = trace;
const debug = (fmt, ...args) => exports.logLevel >= LogLevel.DEBUG && _debug(fmt, ...args);
exports.debug = debug;
exports.error = logger(stderr, [chalk.red]);
exports.warning = logger(stream, [chalk.yellow]);
exports.success = logger(stream, [chalk.green]);
exports.highlight = logger(stream, [chalk.bold]);
exports.print = logger(stream);
exports.data = logger(stdout);
/**
* Create a logger output that features a constant prefix string.
*
* @param prefixString the prefix string to be appended before any log entry.
* @param fn the logger function to be used (typically one of the other functions in this module)
*
* @returns a new LoggerFunction.
*/
function prefix(prefixString, fn) {
return (fmt, ...args) => fn(`%s ${fmt}`, prefixString, ...args);
}
exports.prefix = prefix;
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`[${formatTime(new Date())}] ` : '';\n\n  let str = ts + util.format(fmt, ...args);\n  if (styles && styles.length) {\n    str = styles.reduce((a, style) => style(a), str);\n  }\n\n  const realStream = typeof stream === 'function' ? stream() : stream;\n\n  // Logger is currently corked, so we store the message to be printed\n  // later when we are uncorked.\n  if (corked()) {\n    logBuffer.push([realStream, str]);\n    return;\n  }\n\n  realStream.write(str + '\\n');\n};\n\nfunction formatTime(d: Date) {\n  return `${lpad(d.getHours(), 2)}:${lpad(d.getMinutes(), 2)}:${lpad(d.getSeconds(), 2)}`;\n\n  function lpad(x: any, w: number) {\n    const s = `${x}`;\n    return '0'.repeat(Math.max(w - s.length, 0)) + s;\n  }\n}\n\nexport enum LogLevel {\n  /** Not verbose at all */\n  DEFAULT = 0,\n  /** Pretty verbose */\n  DEBUG = 1,\n  /** Extremely verbose */\n  TRACE = 2\n}\n\nexport let logLevel = LogLevel.DEFAULT;\nexport let CI = false;\n\nexport function setLogLevel(newLogLevel: LogLevel) {\n  logLevel = newLogLevel;\n}\n\nexport function setCI(newCI: boolean) {\n  CI = newCI;\n}\n\nexport function increaseVerbosity() {\n  logLevel += 1;\n}\n\nconst stream = () => CI ? stdout : stderr;\nconst _debug = logger(stream, [chalk.gray], true);\n\nexport const trace = (fmt: string, ...args: unknown[]) => logLevel >= LogLevel.TRACE && _debug(fmt, ...args);\nexport const debug = (fmt: string, ...args: unknown[]) => logLevel >= LogLevel.DEBUG && _debug(fmt, ...args);\nexport const error = logger(stderr, [chalk.red]);\nexport const warning = logger(stream, [chalk.yellow]);\nexport const success = logger(stream, [chalk.green]);\nexport const highlight = logger(stream, [chalk.bold]);\nexport const print = logger(stream);\nexport const data = logger(stdout);\n\nexport type LoggerFunction = (fmt: string, ...args: unknown[]) => void;\n\n/**\n * Create a logger output that features a constant prefix string.\n *\n * @param prefixString the prefix string to be appended before any log entry.\n * @param fn   the logger function to be used (typically one of the other functions in this module)\n *\n * @returns a new LoggerFunction.\n */\nexport function prefix(prefixString: string, fn: LoggerFunction): LoggerFunction {\n  return (fmt: string, ...args: any[]) => fn(`%s ${fmt}`, prefixString, ...args);\n}\n"]}