first commit

node_modules/diagnostic-channel/LICENSE

@@ -0,0 +1,21 @@
+    MIT License
+
+    Copyright (c) Microsoft Corporation. All rights reserved.
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE

node_modules/diagnostic-channel/README.md

@@ -0,0 +1,161 @@
+# diagnostic-channel
+
+This package provides a channel to connect diagnostic event publishers and subscribers. It includes a way to preserve context for the published event too. What that context is and contains is deliberately left unspecified.
+
+## Usage
+
+### Subscribe to an event:
+
+```js
+const channel = require('diagnostic-channel').channel;
+
+channel.subscribe('someEvent', function (event) {
+    // do something about the event
+});
+```
+
+The properties of the `event` object passed to the subscriber handler function
+are determined by the publisher.
+
+### Publish an event
+
+```js
+var someData = { myField: "myData" };
+const channel = require('diagnostic-channel').channel;
+
+channel.publish('someEvent', someData);
+```
+
+### Publish an event with context
+
+Preserving context on publication may require some additional effort. A
+correlation handler can be added with the `addContextPreservation` method, and
+then the `bindToContext` method can be used to set up context using the
+provided handler before calling its received function.
+
+```js
+channel.addContextPreservation((callback) => {
+    return Zone.current.wrap(callback);
+});
+
+function doWork(args, callback) {
+    // In some context...
+    doBatchedAsyncWork(args, channel.bindToContext((result) => {
+        channel.publish('someEvent', {result: result});
+        callback(result);
+    }))
+}
+```
+
+## API
+
+### subscribe
+
+`channel.subscribe(name: string, callback: (event: any) => void): void`
+
+Register the callback to be called when `publish` is invoked with a matching name. The callback will be given the object that is passed to the `publish` call.
+
+If the callback throws an error, it will be silently ignored. If the callback modifies the event object, any subsequent subscribers will see the modified object, and it may also impact the original code's execution.
+
+### publish
+
+`channel.publish(name: string, event: any): void`
+
+Trigger each subscribed callback for the same named event, passing the `event` object to each.
+
+Subscribers may modify the event object.
+
+### unsubscribe
+
+`channel.unsubscribe(name: string, callback: (event: any) => void): void`
+
+Remove a previously registered callback from the named event. This uses function equality so it must be a reference to the same function, not an equivalent function.
+
+### addContextPreservation
+
+`channel.addContextPreservation(preserver: (callback: Function) => Function)`
+
+Pushes the provided context preservation function onto a 'stack' of functions to preserve context.
+
+The context preservation function `preserver` is expected to capture the current context and return a function that when invoked restores this preserved context and only then calls the provided callback with the originally provided arguments. Before returning, this second function should also restore the previous context.
+
+A simple example preserving the Zone.js context:
+
+```js
+channel.addContextPreservation((callback) => {
+    return Zone.current.wrap(callback);
+});
+```
+
+A more general, but somewhat contrived, example, where the 'context' is a global object called `context`:
+
+```js
+var context = { value: 1 };
+
+channel.addContextPreservation((callback) => {
+    var preservedContext = context;
+    return function () {
+        var priorContext = context;
+        context = preservedContext;
+        var result = callback.apply(this, arguments);
+        context = priorContext;
+        return result;
+    }
+});
+```
+
+### bindToContext
+
+`channel.bindToContext(callback: Function)`
+
+Returns a function which will call the callback after applying each of the registered context preservation functions, and return the result of the callback after unwinding each of the context preservation functions.
+
+For example, when using Zone.js:
+
+```js
+channel.addContextPreservation((callback) => Zone.current.wrap(callback));
+
+var z1 = Zone.current.fork({name: 'zone 1'});
+var z2 = Zone.current.fork({name: 'zone 2'});
+
+var z1BoundFunc = z1.run(() => channel.bindToContext(() => Zone.current.name));
+
+var result = z2.run(() => z1BoundFunc());
+```
+
+Because the function was bound in `zone 1`, `result` will be `zone 1`.
+
+### registerMonkeyPatch
+
+`channel.registerMonkeyPatch(packageName: string, patcher: {versionSpecifier: string, patch: (any, path: string) => any})`;
+
+In order to inject publishing and context preservation behavior into third party libraries, we support monkey patching libraries as they are `require`'d.
+
+Calling this function will register a candidate monkey patcher to be applied when a future `require(packageName)` is called. If the package's version is a semver match for the `versionSpecifier` range, then the original object for that package is passed to the `patch` function, along with the path to the module, and the `patch` function should return a patched version which will end up as the result of the `require`.
+
+For a simple example where we patch a `doSomethingAsync` method of the `foo` module to preserve the current context when invoking a callback:
+
+```js
+function patchFunction(originalPackage, packagePath) {
+    var originalFooAsync = foo.doSomethingAsync;
+    foo.doSomethingAsync = function () {
+        var callback = arguments[arguments.length-1];
+        if (callback && typeof callback == 'function') {
+            arguments[arguments.length-1] = channel.bindToContext(callback);
+        }
+        return originalFooAsync.apply(this, arguments);
+    }
+    return originalPackage;
+}
+
+var patcher = {
+    versionSpecifier: ">= 1.0.0 < 2.0.0",
+    patch: patchFunction
+};
+
+channel.registerMonkeyPatch('foo', patcher);
+
+var foo = require('foo');
+// Now foo.doSomethingAsync will be the patched version, assuming that the version of the foo package found by require() falls within the 1.0.0 - 2.0.0 range.
+```
+

node_modules/diagnostic-channel/dist/src/channel.d.ts

@@ -0,0 +1,26 @@
+import { IModulePatcher } from "./patchRequire";
+export { PatchFunction, IModulePatcher, makePatchingRequire } from "./patchRequire";
+export interface ISpanContext {
+    traceId: string;
+    spanId: string;
+    traceFlags?: string;
+    tracestate?: string;
+}
+declare type ScopeManager = any;
+export interface IStandardEvent<T> {
+    timestamp: number;
+    data: T;
+}
+export declare type ISubscriber<T> = (event: IStandardEvent<T>) => void;
+export declare type IFilter = (publishing: boolean) => boolean;
+export interface IChannel {
+    shouldPublish(name: string): boolean;
+    publish<T>(name: string, event: T): void;
+    subscribe<T>(name: string, listener: ISubscriber<T>, filter?: IFilter): void;
+    unsubscribe<T>(name: string, listener: ISubscriber<T>, filter?: IFilter): void;
+    bindToContext<T extends Function>(cb: T): T;
+    addContextPreservation<T extends Function>(preserver: (cb: T) => T): void;
+    registerMonkeyPatch(packageName: string, patcher: IModulePatcher): void;
+    spanContextPropagator: ScopeManager;
+}
+export declare const channel: IChannel;

node_modules/diagnostic-channel/dist/src/channel.js

@@ -0,0 +1,109 @@
+"use strict";
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for details.
+Object.defineProperty(exports, "__esModule", { value: true });
+var patchRequire_1 = require("./patchRequire");
+var patchRequire_2 = require("./patchRequire");
+exports.makePatchingRequire = patchRequire_2.makePatchingRequire;
+var trueFilter = function (publishing) { return true; };
+var ContextPreservingEventEmitter = /** @class */ (function () {
+    function ContextPreservingEventEmitter() {
+        this.version = require("./../../package.json").version; // Allow for future versions to replace things?
+        this.subscribers = {};
+        this.contextPreservationFunction = function (cb) { return cb; };
+        this.knownPatches = {};
+        this.currentlyPublishing = false;
+    }
+    ContextPreservingEventEmitter.prototype.shouldPublish = function (name) {
+        var listeners = this.subscribers[name];
+        if (listeners) {
+            return listeners.some(function (_a) {
+                var filter = _a.filter;
+                return !filter || filter(false);
+            });
+        }
+        return false;
+    };
+    ContextPreservingEventEmitter.prototype.publish = function (name, event) {
+        if (this.currentlyPublishing) {
+            return; // Avoid reentrancy
+        }
+        var listeners = this.subscribers[name];
+        // Note: Listeners called synchronously to preserve context
+        if (listeners) {
+            var standardEvent_1 = {
+                timestamp: Date.now(),
+                data: event,
+            };
+            this.currentlyPublishing = true;
+            listeners.forEach(function (_a) {
+                var listener = _a.listener, filter = _a.filter;
+                try {
+                    if (filter && filter(true)) {
+                        listener(standardEvent_1);
+                    }
+                }
+                catch (e) {
+                    // Subscriber threw an error
+                }
+            });
+            this.currentlyPublishing = false;
+        }
+    };
+    ContextPreservingEventEmitter.prototype.subscribe = function (name, listener, filter) {
+        if (filter === void 0) { filter = trueFilter; }
+        if (!this.subscribers[name]) {
+            this.subscribers[name] = [];
+        }
+        this.subscribers[name].push({ listener: listener, filter: filter });
+    };
+    ContextPreservingEventEmitter.prototype.unsubscribe = function (name, listener, filter) {
+        if (filter === void 0) { filter = trueFilter; }
+        var listeners = this.subscribers[name];
+        if (listeners) {
+            for (var index = 0; index < listeners.length; ++index) {
+                if (listeners[index].listener === listener && listeners[index].filter === filter) {
+                    listeners.splice(index, 1);
+                    return true;
+                }
+            }
+        }
+        return false;
+    };
+    // Used for tests
+    ContextPreservingEventEmitter.prototype.reset = function () {
+        var _this = this;
+        this.subscribers = {};
+        this.contextPreservationFunction = function (cb) { return cb; };
+        // Modify the knownPatches object rather than replace, since a reference will be used in the require patcher
+        Object.getOwnPropertyNames(this.knownPatches).forEach(function (prop) { return delete _this.knownPatches[prop]; });
+    };
+    ContextPreservingEventEmitter.prototype.bindToContext = function (cb) {
+        return this.contextPreservationFunction(cb);
+    };
+    ContextPreservingEventEmitter.prototype.addContextPreservation = function (preserver) {
+        var previousPreservationStack = this.contextPreservationFunction;
+        this.contextPreservationFunction = (function (cb) { return preserver(previousPreservationStack(cb)); });
+    };
+    ContextPreservingEventEmitter.prototype.registerMonkeyPatch = function (packageName, patcher) {
+        if (!this.knownPatches[packageName]) {
+            this.knownPatches[packageName] = [];
+        }
+        this.knownPatches[packageName].push(patcher);
+    };
+    ContextPreservingEventEmitter.prototype.getPatchesObject = function () {
+        return this.knownPatches;
+    };
+    return ContextPreservingEventEmitter;
+}());
+if (!global.diagnosticsSource) {
+    global.diagnosticsSource = new ContextPreservingEventEmitter();
+    // TODO: should this only patch require after at least one monkey patch is registered?
+    /* tslint:disable-next-line:no-var-requires */
+    var moduleModule = require("module");
+    // Note: We pass in the object now before any patches are registered, but the object is passed by reference
+    // so any updates made to the object will be visible in the patcher.
+    moduleModule.prototype.require = patchRequire_1.makePatchingRequire(global.diagnosticsSource.getPatchesObject());
+}
+exports.channel = global.diagnosticsSource;
+//# sourceMappingURL=channel.js.map

node_modules/diagnostic-channel/dist/src/patchRequire.d.ts

@@ -0,0 +1,9 @@
+export declare type PatchFunction = (module: any, path: string) => any;
+export interface IModulePatcher {
+    versionSpecifier: string;
+    patch: PatchFunction;
+}
+export interface IModulePatchMap {
+    [key: string]: IModulePatcher[];
+}
+export declare function makePatchingRequire(knownPatches: IModulePatchMap): (moduleId: string) => any;

node_modules/diagnostic-channel/dist/src/patchRequire.js

@@ -0,0 +1,58 @@
+"use strict";
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for details.
+Object.defineProperty(exports, "__esModule", { value: true });
+var path = require("path");
+var semver = require("semver");
+/* tslint:disable-next-line:no-var-requires */
+var moduleModule = require("module");
+var nativeModules = Object.keys(process.binding("natives"));
+var originalRequire = moduleModule.prototype.require;
+function makePatchingRequire(knownPatches) {
+    var patchedModules = {};
+    return function patchedRequire(moduleId) {
+        var originalModule = originalRequire.apply(this, arguments);
+        if (knownPatches[moduleId]) {
+            // Fetch the specific path of the module
+            var modulePath = moduleModule._resolveFilename(moduleId, this);
+            if (patchedModules.hasOwnProperty(modulePath)) {
+                // This module has already been patched, no need to reapply
+                return patchedModules[modulePath];
+            }
+            var moduleVersion = void 0;
+            if (nativeModules.indexOf(moduleId) < 0) {
+                try {
+                    moduleVersion = originalRequire.call(this, path.join(moduleId, "package.json")).version;
+                }
+                catch (e) {
+                    // This should only happen if moduleId is actually a path rather than a module
+                    // This is not a supported scenario
+                    return originalModule;
+                }
+            }
+            else {
+                // This module is implemented natively so we cannot find a package.json
+                // Instead, take the version of node itself
+                moduleVersion = process.version.substring(1);
+            }
+            var prereleaseTagIndex = moduleVersion.indexOf("-");
+            if (prereleaseTagIndex >= 0) {
+                // We ignore prerelease tags to avoid impossible to fix gaps in support
+                // e.g. supporting console in >= 4.0.0 would otherwise not include
+                // 8.0.0-pre
+                moduleVersion = moduleVersion.substring(0, prereleaseTagIndex);
+            }
+            var modifiedModule = originalModule;
+            for (var _i = 0, _a = knownPatches[moduleId]; _i < _a.length; _i++) {
+                var modulePatcher = _a[_i];
+                if (semver.satisfies(moduleVersion, modulePatcher.versionSpecifier)) {
+                    modifiedModule = modulePatcher.patch(modifiedModule, modulePath);
+                }
+            }
+            return patchedModules[modulePath] = modifiedModule;
+        }
+        return originalModule;
+    };
+}
+exports.makePatchingRequire = makePatchingRequire;
+//# sourceMappingURL=patchRequire.js.map

node_modules/diagnostic-channel/node_modules/.bin/semver

@@ -0,0 +1 @@
+../semver/bin/semver

node_modules/diagnostic-channel/node_modules/semver/LICENSE

@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

node_modules/diagnostic-channel/node_modules/semver/README.md

@@ -0,0 +1,412 @@
+semver(1) -- The semantic versioner for npm
+===========================================
+
+## Install
+
+```bash
+npm install --save semver
+````
+
+## Usage
+
+As a node module:
+
+```js
+const semver = require('semver')
+
+semver.valid('1.2.3') // '1.2.3'
+semver.valid('a.b.c') // null
+semver.clean('  =v1.2.3   ') // '1.2.3'
+semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
+semver.gt('1.2.3', '9.8.7') // false
+semver.lt('1.2.3', '9.8.7') // true
+semver.minVersion('>=1.0.0') // '1.0.0'
+semver.valid(semver.coerce('v2')) // '2.0.0'
+semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'
+```
+
+As a command-line utility:
+
+```
+$ semver -h
+
+A JavaScript implementation of the https://semver.org/ specification
+Copyright Isaac Z. Schlueter
+
+Usage: semver [options] <version> [<version> [...]]
+Prints valid versions sorted by SemVer precedence
+
+Options:
+-r --range <range>
+        Print versions that match the specified range.
+
+-i --increment [<level>]
+        Increment a version by the specified level.  Level can
+        be one of: major, minor, patch, premajor, preminor,
+        prepatch, or prerelease.  Default level is 'patch'.
+        Only one version may be specified.
+
+--preid <identifier>
+        Identifier to be used to prefix premajor, preminor,
+        prepatch or prerelease version increments.
+
+-l --loose
+        Interpret versions and ranges loosely
+
+-p --include-prerelease
+        Always include prerelease versions in range matching
+
+-c --coerce
+        Coerce a string into SemVer if possible
+        (does not imply --loose)
+
+Program exits successfully if any valid version satisfies
+all supplied ranges, and prints all satisfying versions.
+
+If no satisfying versions are found, then exits failure.
+
+Versions are printed in ascending order, so supplying
+multiple versions to the utility will just sort them.
+```
+
+## Versions
+
+A "version" is described by the `v2.0.0` specification found at
+<https://semver.org/>.
+
+A leading `"="` or `"v"` character is stripped off and ignored.
+
+## Ranges
+
+A `version range` is a set of `comparators` which specify versions
+that satisfy the range.
+
+A `comparator` is composed of an `operator` and a `version`.  The set
+of primitive `operators` is:
+
+* `<` Less than
+* `<=` Less than or equal to
+* `>` Greater than
+* `>=` Greater than or equal to
+* `=` Equal.  If no operator is specified, then equality is assumed,
+  so this operator is optional, but MAY be included.
+
+For example, the comparator `>=1.2.7` would match the versions
+`1.2.7`, `1.2.8`, `2.5.3`, and `1.3.9`, but not the versions `1.2.6`
+or `1.1.0`.
+
+Comparators can be joined by whitespace to form a `comparator set`,
+which is satisfied by the **intersection** of all of the comparators
+it includes.
+
+A range is composed of one or more comparator sets, joined by `||`.  A
+version matches a range if and only if every comparator in at least
+one of the `||`-separated comparator sets is satisfied by the version.
+
+For example, the range `>=1.2.7 <1.3.0` would match the versions
+`1.2.7`, `1.2.8`, and `1.2.99`, but not the versions `1.2.6`, `1.3.0`,
+or `1.1.0`.
+
+The range `1.2.7 || >=1.2.9 <2.0.0` would match the versions `1.2.7`,
+`1.2.9`, and `1.4.6`, but not the versions `1.2.8` or `2.0.0`.
+
+### Prerelease Tags
+
+If a version has a prerelease tag (for example, `1.2.3-alpha.3`) then
+it will only be allowed to satisfy comparator sets if at least one
+comparator with the same `[major, minor, patch]` tuple also has a
+prerelease tag.
+
+For example, the range `>1.2.3-alpha.3` would be allowed to match the
+version `1.2.3-alpha.7`, but it would *not* be satisfied by
+`3.4.5-alpha.9`, even though `3.4.5-alpha.9` is technically "greater
+than" `1.2.3-alpha.3` according to the SemVer sort rules.  The version
+range only accepts prerelease tags on the `1.2.3` version.  The
+version `3.4.5` *would* satisfy the range, because it does not have a
+prerelease flag, and `3.4.5` is greater than `1.2.3-alpha.7`.
+
+The purpose for this behavior is twofold.  First, prerelease versions
+frequently are updated very quickly, and contain many breaking changes
+that are (by the author's design) not yet fit for public consumption.
+Therefore, by default, they are excluded from range matching
+semantics.
+
+Second, a user who has opted into using a prerelease version has
+clearly indicated the intent to use *that specific* set of
+alpha/beta/rc versions.  By including a prerelease tag in the range,
+the user is indicating that they are aware of the risk.  However, it
+is still not appropriate to assume that they have opted into taking a
+similar risk on the *next* set of prerelease versions.
+
+Note that this behavior can be suppressed (treating all prerelease
+versions as if they were normal versions, for the purpose of range
+matching) by setting the `includePrerelease` flag on the options
+object to any
+[functions](https://github.com/npm/node-semver#functions) that do
+range matching.
+
+#### Prerelease Identifiers
+
+The method `.inc` takes an additional `identifier` string argument that
+will append the value of the string as a prerelease identifier:
+
+```javascript
+semver.inc('1.2.3', 'prerelease', 'beta')
+// '1.2.4-beta.0'
+```
+
+command-line example:
+
+```bash
+$ semver 1.2.3 -i prerelease --preid beta
+1.2.4-beta.0
+```
+
+Which then can be used to increment further:
+
+```bash
+$ semver 1.2.4-beta.0 -i prerelease
+1.2.4-beta.1
+```
+
+### Advanced Range Syntax
+
+Advanced range syntax desugars to primitive comparators in
+deterministic ways.
+
+Advanced ranges may be combined in the same way as primitive
+comparators using white space or `||`.
+
+#### Hyphen Ranges `X.Y.Z - A.B.C`
+
+Specifies an inclusive set.
+
+* `1.2.3 - 2.3.4` := `>=1.2.3 <=2.3.4`
+
+If a partial version is provided as the first version in the inclusive
+range, then the missing pieces are replaced with zeroes.
+
+* `1.2 - 2.3.4` := `>=1.2.0 <=2.3.4`
+
+If a partial version is provided as the second version in the
+inclusive range, then all versions that start with the supplied parts
+of the tuple are accepted, but nothing that would be greater than the
+provided tuple parts.
+
+* `1.2.3 - 2.3` := `>=1.2.3 <2.4.0`
+* `1.2.3 - 2` := `>=1.2.3 <3.0.0`
+
+#### X-Ranges `1.2.x` `1.X` `1.2.*` `*`
+
+Any of `X`, `x`, or `*` may be used to "stand in" for one of the
+numeric values in the `[major, minor, patch]` tuple.
+
+* `*` := `>=0.0.0` (Any version satisfies)
+* `1.x` := `>=1.0.0 <2.0.0` (Matching major version)
+* `1.2.x` := `>=1.2.0 <1.3.0` (Matching major and minor versions)
+
+A partial version range is treated as an X-Range, so the special
+character is in fact optional.
+
+* `""` (empty string) := `*` := `>=0.0.0`
+* `1` := `1.x.x` := `>=1.0.0 <2.0.0`
+* `1.2` := `1.2.x` := `>=1.2.0 <1.3.0`
+
+#### Tilde Ranges `~1.2.3` `~1.2` `~1`
+
+Allows patch-level changes if a minor version is specified on the
+comparator.  Allows minor-level changes if not.
+
+* `~1.2.3` := `>=1.2.3 <1.(2+1).0` := `>=1.2.3 <1.3.0`
+* `~1.2` := `>=1.2.0 <1.(2+1).0` := `>=1.2.0 <1.3.0` (Same as `1.2.x`)
+* `~1` := `>=1.0.0 <(1+1).0.0` := `>=1.0.0 <2.0.0` (Same as `1.x`)
+* `~0.2.3` := `>=0.2.3 <0.(2+1).0` := `>=0.2.3 <0.3.0`
+* `~0.2` := `>=0.2.0 <0.(2+1).0` := `>=0.2.0 <0.3.0` (Same as `0.2.x`)
+* `~0` := `>=0.0.0 <(0+1).0.0` := `>=0.0.0 <1.0.0` (Same as `0.x`)
+* `~1.2.3-beta.2` := `>=1.2.3-beta.2 <1.3.0` Note that prereleases in
+  the `1.2.3` version will be allowed, if they are greater than or
+  equal to `beta.2`.  So, `1.2.3-beta.4` would be allowed, but
+  `1.2.4-beta.2` would not, because it is a prerelease of a
+  different `[major, minor, patch]` tuple.
+
+#### Caret Ranges `^1.2.3` `^0.2.5` `^0.0.4`
+
+Allows changes that do not modify the left-most non-zero digit in the
+`[major, minor, patch]` tuple.  In other words, this allows patch and
+minor updates for versions `1.0.0` and above, patch updates for
+versions `0.X >=0.1.0`, and *no* updates for versions `0.0.X`.
+
+Many authors treat a `0.x` version as if the `x` were the major
+"breaking-change" indicator.
+
+Caret ranges are ideal when an author may make breaking changes
+between `0.2.4` and `0.3.0` releases, which is a common practice.
+However, it presumes that there will *not* be breaking changes between
+`0.2.4` and `0.2.5`.  It allows for changes that are presumed to be
+additive (but non-breaking), according to commonly observed practices.
+
+* `^1.2.3` := `>=1.2.3 <2.0.0`
+* `^0.2.3` := `>=0.2.3 <0.3.0`
+* `^0.0.3` := `>=0.0.3 <0.0.4`
+* `^1.2.3-beta.2` := `>=1.2.3-beta.2 <2.0.0` Note that prereleases in
+  the `1.2.3` version will be allowed, if they are greater than or
+  equal to `beta.2`.  So, `1.2.3-beta.4` would be allowed, but
+  `1.2.4-beta.2` would not, because it is a prerelease of a
+  different `[major, minor, patch]` tuple.
+* `^0.0.3-beta` := `>=0.0.3-beta <0.0.4`  Note that prereleases in the
+  `0.0.3` version *only* will be allowed, if they are greater than or
+  equal to `beta`.  So, `0.0.3-pr.2` would be allowed.
+
+When parsing caret ranges, a missing `patch` value desugars to the
+number `0`, but will allow flexibility within that value, even if the
+major and minor versions are both `0`.
+
+* `^1.2.x` := `>=1.2.0 <2.0.0`
+* `^0.0.x` := `>=0.0.0 <0.1.0`
+* `^0.0` := `>=0.0.0 <0.1.0`
+
+A missing `minor` and `patch` values will desugar to zero, but also
+allow flexibility within those values, even if the major version is
+zero.
+
+* `^1.x` := `>=1.0.0 <2.0.0`
+* `^0.x` := `>=0.0.0 <1.0.0`
+
+### Range Grammar
+
+Putting all this together, here is a Backus-Naur grammar for ranges,
+for the benefit of parser authors:
+
+```bnf
+range-set  ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range      ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen     ::= partial ' - ' partial
+simple     ::= primitive | partial | tilde | caret
+primitive  ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial    ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr         ::= 'x' | 'X' | '*' | nr
+nr         ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *
+tilde      ::= '~' partial
+caret      ::= '^' partial
+qualifier  ::= ( '-' pre )? ( '+' build )?
+pre        ::= parts
+build      ::= parts
+parts      ::= part ( '.' part ) *
+part       ::= nr | [-0-9A-Za-z]+
+```
+
+## Functions
+
+All methods and classes take a final `options` object argument.  All
+options in this object are `false` by default.  The options supported
+are:
+
+- `loose`  Be more forgiving about not-quite-valid semver strings.
+  (Any resulting output will always be 100% strict compliant, of
+  course.)  For backwards compatibility reasons, if the `options`
+  argument is a boolean value instead of an object, it is interpreted
+  to be the `loose` param.
+- `includePrerelease`  Set to suppress the [default
+  behavior](https://github.com/npm/node-semver#prerelease-tags) of
+  excluding prerelease tagged versions from ranges unless they are
+  explicitly opted into.
+
+Strict-mode Comparators and Ranges will be strict about the SemVer
+strings that they parse.
+
+* `valid(v)`: Return the parsed version, or null if it's not valid.
+* `inc(v, release)`: Return the version incremented by the release
+  type (`major`,   `premajor`, `minor`, `preminor`, `patch`,
+  `prepatch`, or `prerelease`), or null if it's not valid
+  * `premajor` in one call will bump the version up to the next major
+    version and down to a prerelease of that major version.
+    `preminor`, and `prepatch` work the same way.
+  * If called from a non-prerelease version, the `prerelease` will work the
+    same as `prepatch`. It increments the patch version, then makes a
+    prerelease. If the input version is already a prerelease it simply
+    increments it.
+* `prerelease(v)`: Returns an array of prerelease components, or null
+  if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`
+* `major(v)`: Return the major version number.
+* `minor(v)`: Return the minor version number.
+* `patch(v)`: Return the patch version number.
+* `intersects(r1, r2, loose)`: Return true if the two supplied ranges
+  or comparators intersect.
+* `parse(v)`: Attempt to parse a string as a semantic version, returning either
+  a `SemVer` object or `null`.
+
+### Comparison
+
+* `gt(v1, v2)`: `v1 > v2`
+* `gte(v1, v2)`: `v1 >= v2`
+* `lt(v1, v2)`: `v1 < v2`
+* `lte(v1, v2)`: `v1 <= v2`
+* `eq(v1, v2)`: `v1 == v2` This is true if they're logically equivalent,
+  even if they're not the exact same string.  You already know how to
+  compare strings.
+* `neq(v1, v2)`: `v1 != v2` The opposite of `eq`.
+* `cmp(v1, comparator, v2)`: Pass in a comparison string, and it'll call
+  the corresponding function above.  `"==="` and `"!=="` do simple
+  string comparison, but are included for completeness.  Throws if an
+  invalid comparison string is provided.
+* `compare(v1, v2)`: Return `0` if `v1 == v2`, or `1` if `v1` is greater, or `-1` if
+  `v2` is greater.  Sorts in ascending order if passed to `Array.sort()`.
+* `rcompare(v1, v2)`: The reverse of compare.  Sorts an array of versions
+  in descending order when passed to `Array.sort()`.
+* `diff(v1, v2)`: Returns difference between two versions by the release type
+  (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),
+  or null if the versions are the same.
+
+### Comparators
+
+* `intersects(comparator)`: Return true if the comparators intersect
+
+### Ranges
+
+* `validRange(range)`: Return the valid range or null if it's not valid
+* `satisfies(version, range)`: Return true if the version satisfies the
+  range.
+* `maxSatisfying(versions, range)`: Return the highest version in the list
+  that satisfies the range, or `null` if none of them do.
+* `minSatisfying(versions, range)`: Return the lowest version in the list
+  that satisfies the range, or `null` if none of them do.
+* `minVersion(range)`: Return the lowest version that can possibly match
+  the given range.
+* `gtr(version, range)`: Return `true` if version is greater than all the
+  versions possible in the range.
+* `ltr(version, range)`: Return `true` if version is less than all the
+  versions possible in the range.
+* `outside(version, range, hilo)`: Return true if the version is outside
+  the bounds of the range in either the high or low direction.  The
+  `hilo` argument must be either the string `'>'` or `'<'`.  (This is
+  the function called by `gtr` and `ltr`.)
+* `intersects(range)`: Return true if any of the ranges comparators intersect
+
+Note that, since ranges may be non-contiguous, a version might not be
+greater than a range, less than a range, *or* satisfy a range!  For
+example, the range `1.2 <1.2.9 || >2.0.0` would have a hole from `1.2.9`
+until `2.0.0`, so the version `1.2.10` would not be greater than the
+range (because `2.0.1` satisfies, which is higher), nor less than the
+range (since `1.2.8` satisfies, which is lower), and it also does not
+satisfy the range.
+
+If you want to know if a version satisfies or does not satisfy a
+range, use the `satisfies(version, range)` function.
+
+### Coercion
+
+* `coerce(version)`: Coerces a string to semver if possible
+
+This aims to provide a very forgiving translation of a non-semver string to
+semver. It looks for the first digit in a string, and consumes all
+remaining characters which satisfy at least a partial semver (e.g., `1`,
+`1.2`, `1.2.3`) up to the max permitted length (256 characters).  Longer
+versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`).  All
+surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes
+`3.4.0`).  Only text which lacks digits will fail coercion (`version one`
+is not valid).  The maximum  length for any semver component considered for
+coercion is 16 characters; longer components will be ignored
+(`10000000000000000.4.7.4` becomes `4.7.4`).  The maximum value for any
+semver component is `Number.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value
+components are invalid (`9999999999999999.4.7.4` is likely invalid).

node_modules/diagnostic-channel/node_modules/semver/bin/semver

@@ -0,0 +1,160 @@
+#!/usr/bin/env node
+// Standalone semver comparison program.
+// Exits successfully and prints matching version(s) if
+// any supplied version is valid and passes all tests.
+
+var argv = process.argv.slice(2)
+
+var versions = []
+
+var range = []
+
+var inc = null
+
+var version = require('../package.json').version
+
+var loose = false
+
+var includePrerelease = false
+
+var coerce = false
+
+var identifier
+
+var semver = require('../semver')
+
+var reverse = false
+
+var options = {}
+
+main()
+
+function main () {
+  if (!argv.length) return help()
+  while (argv.length) {
+    var a = argv.shift()
+    var indexOfEqualSign = a.indexOf('=')
+    if (indexOfEqualSign !== -1) {
+      a = a.slice(0, indexOfEqualSign)
+      argv.unshift(a.slice(indexOfEqualSign + 1))
+    }
+    switch (a) {
+      case '-rv': case '-rev': case '--rev': case '--reverse':
+        reverse = true
+        break
+      case '-l': case '--loose':
+        loose = true
+        break
+      case '-p': case '--include-prerelease':
+        includePrerelease = true
+        break
+      case '-v': case '--version':
+        versions.push(argv.shift())
+        break
+      case '-i': case '--inc': case '--increment':
+        switch (argv[0]) {
+          case 'major': case 'minor': case 'patch': case 'prerelease':
+          case 'premajor': case 'preminor': case 'prepatch':
+            inc = argv.shift()
+            break
+          default:
+            inc = 'patch'
+            break
+        }
+        break
+      case '--preid':
+        identifier = argv.shift()
+        break
+      case '-r': case '--range':
+        range.push(argv.shift())
+        break
+      case '-c': case '--coerce':
+        coerce = true
+        break
+      case '-h': case '--help': case '-?':
+        return help()
+      default:
+        versions.push(a)
+        break
+    }
+  }
+
+  var options = { loose: loose, includePrerelease: includePrerelease }
+
+  versions = versions.map(function (v) {
+    return coerce ? (semver.coerce(v) || { version: v }).version : v
+  }).filter(function (v) {
+    return semver.valid(v)
+  })
+  if (!versions.length) return fail()
+  if (inc && (versions.length !== 1 || range.length)) { return failInc() }
+
+  for (var i = 0, l = range.length; i < l; i++) {
+    versions = versions.filter(function (v) {
+      return semver.satisfies(v, range[i], options)
+    })
+    if (!versions.length) return fail()
+  }
+  return success(versions)
+}
+
+function failInc () {
+  console.error('--inc can only be used on a single version with no range')
+  fail()
+}
+
+function fail () { process.exit(1) }
+
+function success () {
+  var compare = reverse ? 'rcompare' : 'compare'
+  versions.sort(function (a, b) {
+    return semver[compare](a, b, options)
+  }).map(function (v) {
+    return semver.clean(v, options)
+  }).map(function (v) {
+    return inc ? semver.inc(v, inc, options, identifier) : v
+  }).forEach(function (v, i, _) { console.log(v) })
+}
+
+function help () {
+  console.log(['SemVer ' + version,
+    '',
+    'A JavaScript implementation of the https://semver.org/ specification',
+    'Copyright Isaac Z. Schlueter',
+    '',
+    'Usage: semver [options] <version> [<version> [...]]',
+    'Prints valid versions sorted by SemVer precedence',
+    '',
+    'Options:',
+    '-r --range <range>',
+    '        Print versions that match the specified range.',
+    '',
+    '-i --increment [<level>]',
+    '        Increment a version by the specified level.  Level can',
+    '        be one of: major, minor, patch, premajor, preminor,',
+    "        prepatch, or prerelease.  Default level is 'patch'.",
+    '        Only one version may be specified.',
+    '',
+    '--preid <identifier>',
+    '        Identifier to be used to prefix premajor, preminor,',
+    '        prepatch or prerelease version increments.',
+    '',
+    '-l --loose',
+    '        Interpret versions and ranges loosely',
+    '',
+    '-p --include-prerelease',
+    '        Always include prerelease versions in range matching',
+    '',
+    '-c --coerce',
+    '        Coerce a string into SemVer if possible',
+    '        (does not imply --loose)',
+    '',
+    'Program exits successfully if any valid version satisfies',
+    'all supplied ranges, and prints all satisfying versions.',
+    '',
+    'If no satisfying versions are found, then exits failure.',
+    '',
+    'Versions are printed in ascending order, so supplying',
+    'multiple versions to the utility will just sort them.'
+  ].join('\n'))
+}

node_modules/diagnostic-channel/node_modules/semver/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "semver",
+  "version": "5.7.2",
+  "description": "The semantic version parser used by npm.",
+  "main": "semver.js",
+  "scripts": {
+    "test": "tap test/ --100 --timeout=30",
+    "lint": "echo linting disabled",
+    "postlint": "template-oss-check",
+    "template-oss-apply": "template-oss-apply --force",
+    "lintfix": "npm run lint -- --fix",
+    "snap": "tap test/ --100 --timeout=30",
+    "posttest": "npm run lint"
+  },
+  "devDependencies": {
+    "@npmcli/template-oss": "4.17.0",
+    "tap": "^12.7.0"
+  },
+  "license": "ISC",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/node-semver.git"
+  },
+  "bin": {
+    "semver": "./bin/semver"
+  },
+  "files": [
+    "bin",
+    "range.bnf",
+    "semver.js"
+  ],
+  "author": "GitHub Inc.",
+  "templateOSS": {
+    "//@npmcli/template-oss": "This file is partially managed by @npmcli/template-oss. Edits may be overwritten.",
+    "content": "./scripts/template-oss",
+    "version": "4.17.0"
+  }
+}

node_modules/diagnostic-channel/node_modules/semver/range.bnf

@@ -0,0 +1,16 @@
+range-set  ::= range ( logical-or range ) *
+logical-or ::= ( ' ' ) * '||' ( ' ' ) *
+range      ::= hyphen | simple ( ' ' simple ) * | ''
+hyphen     ::= partial ' - ' partial
+simple     ::= primitive | partial | tilde | caret
+primitive  ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
+partial    ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
+xr         ::= 'x' | 'X' | '*' | nr
+nr         ::= '0' | [1-9] ( [0-9] ) *
+tilde      ::= '~' partial
+caret      ::= '^' partial
+qualifier  ::= ( '-' pre )? ( '+' build )?
+pre        ::= parts
+build      ::= parts
+parts      ::= part ( '.' part ) *
+part       ::= nr | [-0-9A-Za-z]+

node_modules/diagnostic-channel/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "diagnostic-channel",
+  "version": "0.3.1",
+  "main": "./dist/src/channel.js",
+  "types": "./dist/src/channel.d.ts",
+  "scripts": {
+    "build": "tsc",
+    "lint": "tslint -c tslint.json -p tsconfig.json",
+    "clean": "rimraf ./dist",
+    "test": "mocha ./dist/tests/**/*.js"
+  },
+  "homepage": "https://github.com/Microsoft/node-diagnostic-channel",
+  "bugs": {
+    "url": "https://github.com/Microsoft/node-diagnostic-channel/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Microsoft/node-diagnostic-channel.git"
+  },
+  "description": "Provides a context-saving pub/sub channel to connect diagnostic event publishers and subscribers",
+  "dependencies": {
+    "semver": "^5.3.0"
+  },
+  "devDependencies": {
+    "@types/mocha": "^2.2.40",
+    "@types/node": "^7.0.12",
+    "mocha": "^3.2.0",
+    "rimraf": "^2.6.1",
+    "tslint": "^5.0.0",
+    "typescript": "^2.2.1"
+  },
+  "files": [
+    "dist/src/**/*.d.ts",
+    "dist/src/**/*.js",
+    "LICENSE",
+    "README.md",
+    "package.json"
+  ],
+  "license": "MIT"
+}