2022-07-12 09:00:22 +02:00

211 lines
5.9 KiB
JavaScript

'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
var util = _interopDefault(require('util'));
var os = require('os');
// Copyright (c) Microsoft Corporation.
function log(message, ...args) {
process.stderr.write(`${util.format(message, ...args)}${os.EOL}`);
}
// Copyright (c) Microsoft Corporation.
const debugEnvVariable = (typeof process !== "undefined" && process.env && process.env.DEBUG) || undefined;
let enabledString;
let enabledNamespaces = [];
let skippedNamespaces = [];
const debuggers = [];
if (debugEnvVariable) {
enable(debugEnvVariable);
}
const debugObj = Object.assign((namespace) => {
return createDebugger(namespace);
}, {
enable,
enabled,
disable,
log
});
function enable(namespaces) {
enabledString = namespaces;
enabledNamespaces = [];
skippedNamespaces = [];
const wildcard = /\*/g;
const namespaceList = namespaces.split(",").map((ns) => ns.trim().replace(wildcard, ".*?"));
for (const ns of namespaceList) {
if (ns.startsWith("-")) {
skippedNamespaces.push(new RegExp(`^${ns.substr(1)}$`));
}
else {
enabledNamespaces.push(new RegExp(`^${ns}$`));
}
}
for (const instance of debuggers) {
instance.enabled = enabled(instance.namespace);
}
}
function enabled(namespace) {
if (namespace.endsWith("*")) {
return true;
}
for (const skipped of skippedNamespaces) {
if (skipped.test(namespace)) {
return false;
}
}
for (const enabledNamespace of enabledNamespaces) {
if (enabledNamespace.test(namespace)) {
return true;
}
}
return false;
}
function disable() {
const result = enabledString || "";
enable("");
return result;
}
function createDebugger(namespace) {
const newDebugger = Object.assign(debug, {
enabled: enabled(namespace),
destroy,
log: debugObj.log,
namespace,
extend
});
function debug(...args) {
if (!newDebugger.enabled) {
return;
}
if (args.length > 0) {
args[0] = `${namespace} ${args[0]}`;
}
newDebugger.log(...args);
}
debuggers.push(newDebugger);
return newDebugger;
}
function destroy() {
const index = debuggers.indexOf(this);
if (index >= 0) {
debuggers.splice(index, 1);
return true;
}
return false;
}
function extend(namespace) {
const newDebugger = createDebugger(`${this.namespace}:${namespace}`);
newDebugger.log = this.log;
return newDebugger;
}
// Copyright (c) Microsoft Corporation.
const registeredLoggers = new Set();
const logLevelFromEnv = (typeof process !== "undefined" && process.env && process.env.AZURE_LOG_LEVEL) || undefined;
let azureLogLevel;
/**
* The AzureLogger provides a mechanism for overriding where logs are output to.
* By default, logs are sent to stderr.
* Override the `log` method to redirect logs to another location.
*/
const AzureLogger = debugObj("azure");
AzureLogger.log = (...args) => {
debugObj.log(...args);
};
const AZURE_LOG_LEVELS = ["verbose", "info", "warning", "error"];
if (logLevelFromEnv) {
// avoid calling setLogLevel because we don't want a mis-set environment variable to crash
if (isAzureLogLevel(logLevelFromEnv)) {
setLogLevel(logLevelFromEnv);
}
else {
console.error(`AZURE_LOG_LEVEL set to unknown log level '${logLevelFromEnv}'; logging is not enabled. Acceptable values: ${AZURE_LOG_LEVELS.join(", ")}.`);
}
}
/**
* Immediately enables logging at the specified log level.
* @param level - The log level to enable for logging.
* Options from most verbose to least verbose are:
* - verbose
* - info
* - warning
* - error
*/
function setLogLevel(level) {
if (level && !isAzureLogLevel(level)) {
throw new Error(`Unknown log level '${level}'. Acceptable values: ${AZURE_LOG_LEVELS.join(",")}`);
}
azureLogLevel = level;
const enabledNamespaces = [];
for (const logger of registeredLoggers) {
if (shouldEnable(logger)) {
enabledNamespaces.push(logger.namespace);
}
}
debugObj.enable(enabledNamespaces.join(","));
}
/**
* Retrieves the currently specified log level.
*/
function getLogLevel() {
return azureLogLevel;
}
const levelMap = {
verbose: 400,
info: 300,
warning: 200,
error: 100
};
/**
* Creates a logger for use by the Azure SDKs that inherits from `AzureLogger`.
* @param namespace - The name of the SDK package.
* @hidden
*/
function createClientLogger(namespace) {
const clientRootLogger = AzureLogger.extend(namespace);
patchLogMethod(AzureLogger, clientRootLogger);
return {
error: createLogger(clientRootLogger, "error"),
warning: createLogger(clientRootLogger, "warning"),
info: createLogger(clientRootLogger, "info"),
verbose: createLogger(clientRootLogger, "verbose")
};
}
function patchLogMethod(parent, child) {
child.log = (...args) => {
parent.log(...args);
};
}
function createLogger(parent, level) {
const logger = Object.assign(parent.extend(level), {
level
});
patchLogMethod(parent, logger);
if (shouldEnable(logger)) {
const enabledNamespaces = debugObj.disable();
debugObj.enable(enabledNamespaces + "," + logger.namespace);
}
registeredLoggers.add(logger);
return logger;
}
function shouldEnable(logger) {
if (azureLogLevel && levelMap[logger.level] <= levelMap[azureLogLevel]) {
return true;
}
else {
return false;
}
}
function isAzureLogLevel(logLevel) {
return AZURE_LOG_LEVELS.includes(logLevel);
}
exports.AzureLogger = AzureLogger;
exports.createClientLogger = createClientLogger;
exports.getLogLevel = getLogLevel;
exports.setLogLevel = setLogLevel;
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