From db11d9e07b4dfc40927c36c5217cd63da3aa5bc5 Mon Sep 17 00:00:00 2001
From: Dan Mosedale <dmose2@gmail.com>
Date: Mon, 27 Jun 2022 19:13:29 -0700
Subject: [PATCH] Add mode to throw on invalid property access, fixes #25

---
 lib/Jexl.js                                   |  10 +-
 lib/evaluator/Evaluator.js                    |   9 +-
 lib/evaluator/handlers.js                     |  37 +-
 package.json                                  |   3 +-
 .../Evaluator-throw-on-missing-prop-mode.js   | 206 ++++++
 test/evaluator/Evaluator.js                   |   2 +-
 vendor/mozjexl.jsm                            |  56 +-
 yarn.lock                                     | 639 ++++++------------
 8 files changed, 511 insertions(+), 451 deletions(-)
 create mode 100644 test/evaluator/Evaluator-throw-on-missing-prop-mode.js

diff --git a/lib/Jexl.js b/lib/Jexl.js
index 14fc6ce0..19cfbf34 100644
--- a/lib/Jexl.js
+++ b/lib/Jexl.js
@@ -14,10 +14,11 @@ var Evaluator = require("./evaluator/Evaluator"),
  * xpath-like drilldown into native Javascript objects.
  * @constructor
  */
-function Jexl() {
+function Jexl(throwOnMissingProp) {
   this._customGrammar = null;
   this._lexer = null;
   this._transforms = {};
+  this._throwOnMissingProp = throwOnMissingProp || true;
 }
 
 /**
@@ -174,7 +175,12 @@ Jexl.prototype._eval = function(exp, context) {
   var self = this,
     grammar = this._getGrammar(),
     parser = new Parser(grammar),
-    evaluator = new Evaluator(grammar, this._transforms, context);
+    evaluator = new Evaluator(
+      grammar,
+      this._transforms,
+      context,
+      this._throwOnMissingProp
+    );
   return Promise.resolve().then(function() {
     parser.addTokens(self._getLexer().tokenize(exp));
     return evaluator.eval(parser.complete());
diff --git a/lib/evaluator/Evaluator.js b/lib/evaluator/Evaluator.js
index 2eae6af7..71b635c0 100644
--- a/lib/evaluator/Evaluator.js
+++ b/lib/evaluator/Evaluator.js
@@ -35,11 +35,18 @@ var handlers = require("./handlers");
  *      to resolve the value of a relative identifier.
  * @constructor
  */
-var Evaluator = function(grammar, transforms, context, relativeContext) {
+var Evaluator = function(
+  grammar,
+  transforms,
+  context,
+  relativeContext,
+  throwOnMissingProp
+) {
   this._grammar = grammar;
   this._transforms = transforms || {};
   this._context = context || {};
   this._relContext = relativeContext || this._context;
+  this._throwOnMissingProp = throwOnMissingProp || false;
 };
 
 /**
diff --git a/lib/evaluator/handlers.js b/lib/evaluator/handlers.js
index 5ffe32bb..3798da3e 100644
--- a/lib/evaluator/handlers.js
+++ b/lib/evaluator/handlers.js
@@ -81,16 +81,45 @@ exports.FilterExpression = function(ast) {
  * @private
  */
 exports.Identifier = function(ast) {
+  function contextHasProp(context, prop) {
+    // If this is primitive object (eg "string") we can't check
+    // this, which is why we have to be careful not to look in things
+    // that aren't objects.
+    if (typeof context == "object" && !(prop in context)) {
+      return false;
+    }
+
+    return true;
+  }
+
+  let that = this;
   if (ast.from) {
     return this.eval(ast.from).then(function(context) {
       if (Array.isArray(context)) context = context[0];
-      if (context === undefined) return undefined;
+      if (context === undefined) return undefined; // XXX deleteme?  testme?
+      if (that._throwOnMissingProp && !contextHasProp(context, ast.value)) {
+        throw new Error(
+          `stemmed context does not have an identifier named ${ast.value}`
+        );
+      }
+
       return context[ast.value];
     });
   } else {
-    return ast.relative
-      ? this._relContext[ast.value]
-      : this._context[ast.value];
+    const contextToCheck = ast.relative ? this._relContext : this._context;
+
+    console.log("b4");
+
+    if (
+      that._throwOnMissingProp &&
+      !contextHasProp(contextToCheck, ast.value)
+    ) {
+      throw new Error(
+        `default context does not have an identifier named ${ast.value}`
+      );
+    }
+
+    return contextToCheck[ast.value];
   }
 };
 
diff --git a/package.json b/package.json
index 3917f50f..bdb687dd 100644
--- a/package.json
+++ b/package.json
@@ -45,6 +45,7 @@
     "eslint-plugin-prettier": "^2.6.0",
     "license-webpack-plugin": "0.5.1",
     "prettier": "^1.10.2",
-    "webpack": "3.1.0"
+    "webpack": "3.1.0",
+    "webpack-cli": "^4.10.0"
   }
 }
diff --git a/test/evaluator/Evaluator-throw-on-missing-prop-mode.js b/test/evaluator/Evaluator-throw-on-missing-prop-mode.js
new file mode 100644
index 00000000..ad15aace
--- /dev/null
+++ b/test/evaluator/Evaluator-throw-on-missing-prop-mode.js
@@ -0,0 +1,206 @@
+/*
+ * Jexl
+ * Copyright (c) 2015 TechnologyAdvice
+ */
+
+var chai = require("chai"),
+  chaiAsPromised = require("chai-as-promised"),
+  Lexer = require("../../lib/Lexer"),
+  Parser = require("../../lib/parser/Parser"),
+  Evaluator = require("../../lib/evaluator/Evaluator"),
+  grammar = require("../../lib/grammar").elements;
+
+chai.should();
+chai.use(chaiAsPromised);
+
+var lexer = new Lexer(grammar);
+
+function toTree(exp) {
+  var p = new Parser(grammar);
+  p.addTokens(lexer.tokenize(exp));
+  return p.complete();
+}
+
+describe("Evaluator in throwOnMissingProp mode", function() {
+  it("should evaluate an arithmetic expression", function() {
+    const e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree("(2 + 3) * 4")).should.become(20);
+  });
+  it("should evaluate a string concat", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e
+      .eval(toTree('"Hello" + (4+4) + "Wo\\"rld"'))
+      .should.become('Hello8Wo"rld');
+  });
+  it("should evaluate a true comparison expression", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree("2 > 1")).should.become(true);
+  });
+  it("should evaluate a false comparison expression", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree("2 <= 1")).should.become(false);
+  });
+  it("should evaluate a complex expression", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e
+      .eval(toTree('"foo" && 6 >= 6 && 0 + 1 && true'))
+      .should.become(true);
+  });
+  it("should evaluate an identifier chain", function() {
+    var context = { foo: { baz: { bar: "tek" } } },
+      e = new Evaluator(grammar, null, context, null, true);
+    return e.eval(toTree("foo.baz.bar")).should.become(context.foo.baz.bar);
+  });
+  it("should apply transforms", function() {
+    var context = { foo: 10 },
+      half = function(val) {
+        return val / 2;
+      },
+      e = new Evaluator(grammar, { half: half }, context, null, true);
+    return e.eval(toTree("foo|half + 3")).should.become(8);
+  });
+  it("should filter arrays", function() {
+    var context = {
+        foo: {
+          bar: [{ tek: "hello" }, { tek: "baz" }, { tok: "baz" }]
+        }
+      },
+      e = new Evaluator(grammar, null, context, null, true);
+    return e
+      .eval(toTree('foo.bar[.tek == "baz"]'))
+      .should.eventually.deep.equal([{ tek: "baz" }]);
+  });
+  it("should assume array index 0 when traversing", function() {
+    var context = {
+        foo: {
+          bar: [{ tek: { hello: "world" } }, { tek: { hello: "universe" } }]
+        }
+      },
+      e = new Evaluator(grammar, null, context, null, true);
+    return e.eval(toTree("foo.bar.tek.hello")).should.become("world");
+  });
+  it("should make array elements addressable by index", function() {
+    var context = {
+        foo: {
+          bar: [{ tek: "tok" }, { tek: "baz" }, { tek: "foz" }]
+        }
+      },
+      e = new Evaluator(grammar, null, context, null, true);
+    return e.eval(toTree("foo.bar[1].tek")).should.become("baz");
+  });
+  it("should allow filters to select object properties", function() {
+    var context = { foo: { baz: { bar: "tek" } } },
+      e = new Evaluator(grammar, null, context, null, true);
+    return e
+      .eval(toTree('foo["ba" + "z"].bar'))
+      .should.become(context.foo.baz.bar);
+  });
+  it("should reject simple filters on undefined objects", function() {
+    var context = { foo: {} },
+      e = new Evaluator(grammar, null, context, null, true);
+    return e.eval(toTree('foo.bar["baz"].tok')).should.be.rejected;
+  });
+  it("should reject complex filters on undefined objects", function() {
+    var context = { foo: {} },
+      e = new Evaluator(grammar, null, context, null, true);
+    return e.eval(toTree("foo.bar[.size > 1].baz")).should.be.rejected;
+  });
+  it("should throw when transform does not exist", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree('"hello"|world')).should.be.rejected;
+  });
+  it("should throw when top-level identifier doesn't exist", function() {
+    var context = { foo: { baz: { bar: "dog" } } },
+      e = new Evaluator(grammar, null, context, null, true);
+
+    return e.eval(toTree("monkey")).should.be.rejected;
+  });
+  it("should throw when child identifier doesn't exist", function() {
+    var context = { foo: { baz: { bar: "cat" } } },
+      e = new Evaluator(grammar, null, context, null, true);
+
+    return e.eval(toTree("foo.baz.monkey")).should.be.rejected;
+  });
+  it("should apply the DivFloor operator", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree("7 // 2")).should.become(3);
+  });
+  it("should evaluate an object literal", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e
+      .eval(toTree('{foo: {bar: "tek"}}'))
+      .should.eventually.deep.equal({ foo: { bar: "tek" } });
+  });
+  it("should evaluate an empty object literal", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree("{}")).should.eventually.deep.equal({});
+  });
+  it("should evaluate a transform with multiple args", function() {
+    var e = new Evaluator(
+      grammar,
+      {
+        concat: function(val, a1, a2, a3) {
+          return val + ": " + a1 + a2 + a3;
+        }
+      },
+      null,
+      null,
+      true
+    );
+    return e
+      .eval(toTree('"foo"|concat("baz", "bar", "tek")'))
+      .should.become("foo: bazbartek");
+  });
+  it("should evaluate dot notation for object literals", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree('{foo: "bar"}.foo')).should.become("bar");
+  });
+  it("should allow access to literal properties", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree('"foo".length')).should.become(3);
+  });
+  it("should evaluate array literals", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e
+      .eval(toTree('["foo", 1+2]'))
+      .should.eventually.deep.equal(["foo", 3]);
+  });
+  it("should allow properties on empty arrays", function() {
+    var context = { foo: {} },
+      e = new Evaluator(grammar, null, context, null, true);
+    return e.eval(toTree("[].baz")).should.become(undefined);
+  });
+  it('should apply the "in" operator to strings', function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return Promise.all([
+      e.eval(toTree('"bar" in "foobartek"')).should.become(true),
+      e.eval(toTree('"baz" in "foobartek"')).should.become(false)
+    ]);
+  });
+  it('should apply the "in" operator to arrays', function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return Promise.all([
+      e.eval(toTree('"bar" in ["foo","bar","tek"]')).should.become(true),
+      e.eval(toTree('"baz" in ["foo","bar","tek"]')).should.become(false)
+    ]);
+  });
+  it("should evaluate a conditional expression", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return Promise.all([
+      e.eval(toTree('"foo" ? 1 : 2')).should.become(1),
+      e.eval(toTree('"" ? 1 : 2')).should.become(2)
+    ]);
+  });
+  it("should allow missing consequent in ternary", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree('"foo" ?: "bar"')).should.become("foo");
+  });
+  it("does not treat falsey properties as undefined", function() {
+    const e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree('"".length')).should.become(0);
+  });
+  it("should handle an expression with arbitrary whitespace", function() {
+    var e = new Evaluator(grammar, null, null, null, true);
+    return e.eval(toTree("(\t2\n+\n3) *\n4\n\r\n")).should.become(20);
+  });
+});
diff --git a/test/evaluator/Evaluator.js b/test/evaluator/Evaluator.js
index 49f5300a..892a079f 100644
--- a/test/evaluator/Evaluator.js
+++ b/test/evaluator/Evaluator.js
@@ -107,7 +107,7 @@ describe("Evaluator", function() {
   });
   it("should throw when transform does not exist", function() {
     var e = new Evaluator(grammar);
-    return e.eval(toTree('"hello"|world')).should.reject;
+    return e.eval(toTree('"hello"|world')).should.be.rejected;
   });
   it("should apply the DivFloor operator", function() {
     var e = new Evaluator(grammar);
diff --git a/vendor/mozjexl.jsm b/vendor/mozjexl.jsm
index 560db728..27f0e013 100644
--- a/vendor/mozjexl.jsm
+++ b/vendor/mozjexl.jsm
@@ -300,10 +300,11 @@ var Evaluator = __webpack_require__(2),
  * xpath-like drilldown into native Javascript objects.
  * @constructor
  */
-function Jexl() {
+function Jexl(throwOnMissingProp) {
   this._customGrammar = null;
   this._lexer = null;
   this._transforms = {};
+  this._throwOnMissingProp = throwOnMissingProp || true;
 }
 
 /**
@@ -460,7 +461,12 @@ Jexl.prototype._eval = function(exp, context) {
   var self = this,
     grammar = this._getGrammar(),
     parser = new Parser(grammar),
-    evaluator = new Evaluator(grammar, this._transforms, context);
+    evaluator = new Evaluator(
+      grammar,
+      this._transforms,
+      context,
+      this._throwOnMissingProp
+    );
   return Promise.resolve().then(function() {
     parser.addTokens(self._getLexer().tokenize(exp));
     return evaluator.eval(parser.complete());
@@ -552,11 +558,18 @@ var handlers = __webpack_require__(3);
  *      to resolve the value of a relative identifier.
  * @constructor
  */
-var Evaluator = function(grammar, transforms, context, relativeContext) {
+var Evaluator = function(
+  grammar,
+  transforms,
+  context,
+  relativeContext,
+  throwOnMissingProp
+) {
   this._grammar = grammar;
   this._transforms = transforms || {};
   this._context = context || {};
   this._relContext = relativeContext || this._context;
+  this._throwOnMissingProp = throwOnMissingProp || false;
 };
 
 /**
@@ -762,16 +775,45 @@ exports.FilterExpression = function(ast) {
  * @private
  */
 exports.Identifier = function(ast) {
+  function contextHasProp(context, prop) {
+    // If this is primitive object (eg "string") we can't check
+    // this, which is why we have to be careful not to look in things
+    // that aren't objects.
+    if (typeof context == "object" && !(prop in context)) {
+      return false;
+    }
+
+    return true;
+  }
+
+  let that = this;
   if (ast.from) {
     return this.eval(ast.from).then(function(context) {
       if (Array.isArray(context)) context = context[0];
-      if (context === undefined) return undefined;
+      if (context === undefined) return undefined; // XXX deleteme?  testme?
+      if (that._throwOnMissingProp && !contextHasProp(context, ast.value)) {
+        throw new Error(
+          `stemmed context does not have an identifier named ${ast.value}`
+        );
+      }
+
       return context[ast.value];
     });
   } else {
-    return ast.relative
-      ? this._relContext[ast.value]
-      : this._context[ast.value];
+    const contextToCheck = ast.relative ? this._relContext : this._context;
+
+    console.log("b4");
+
+    if (
+      that._throwOnMissingProp &&
+      !contextHasProp(contextToCheck, ast.value)
+    ) {
+      throw new Error(
+        `default context does not have an identifier named ${ast.value}`
+      );
+    }
+
+    return contextToCheck[ast.value];
   }
 };
 
diff --git a/yarn.lock b/yarn.lock
index c30911b7..42f1eb32 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,28 @@
 # yarn lockfile v1
 
 
+"@discoveryjs/json-ext@^0.5.0":
+  version "0.5.7"
+  resolved "https://registry.yarnpkg.com/@discoveryjs/json-ext/-/json-ext-0.5.7.tgz#1d572bfbbe14b7704e0ba0f39b74815b84870d70"
+  integrity sha512-dBVuXR082gk3jsFp7Rd/JI4kytwGHecnCoTtXFb7DB6CNHp4rg5k1bhg0nWdLGLnOV71lmDzGQaLMy8iPLY0pw==
+
+"@webpack-cli/configtest@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@webpack-cli/configtest/-/configtest-1.2.0.tgz#7b20ce1c12533912c3b217ea68262365fa29a6f5"
+  integrity sha512-4FB8Tj6xyVkyqjj1OaTqCjXYULB9FMkqQ8yGrZjRDrYh0nOE+7Lhs45WioWQQMV+ceFlE368Ukhe6xdvJM9Egg==
+
+"@webpack-cli/info@^1.5.0":
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/@webpack-cli/info/-/info-1.5.0.tgz#6c78c13c5874852d6e2dd17f08a41f3fe4c261b1"
+  integrity sha512-e8tSXZpw2hPl2uMJY6fsMswaok5FdlGNRTktvFk2sD8RjH0hE2+XistawJx1vmKteh4NmGmNUrp+Tb2w+udPcQ==
+  dependencies:
+    envinfo "^7.7.3"
+
+"@webpack-cli/serve@^1.7.0":
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/@webpack-cli/serve/-/serve-1.7.0.tgz#e1993689ac42d2b16e9194376cfb6753f6254db1"
+  integrity sha512-oxnCNGj88fL+xzV+dacXs44HcDwf1ovs3AuEzvP7mqXw7fQntqIhQ1BRmynh4qEKQSSSRSWVyXRjmTbZIX9V2Q==
+
 acorn-dynamic-import@^2.0.0:
   version "2.0.2"
   resolved "https://registry.npmjs.org/acorn-dynamic-import/-/acorn-dynamic-import-2.0.2.tgz"
@@ -172,7 +194,7 @@ atob@^2.1.2:
   resolved "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz"
   integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
-babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
+babel-code-frame@^6.22.0:
   version "6.26.0"
   resolved "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.26.0.tgz"
   dependencies:
@@ -180,327 +202,6 @@ babel-code-frame@^6.22.0, babel-code-frame@^6.26.0:
     esutils "^2.0.2"
     js-tokens "^3.0.2"
 
-babel-core@^6.24.1, babel-core@^6.26.0:
-  version "6.26.3"
-  resolved "https://registry.npmjs.org/babel-core/-/babel-core-6.26.3.tgz"
-  integrity sha512-6jyFLuDmeidKmUEb3NM+/yawG0M2bDZ9Z1qbZP59cyHLz8kYGKYwpJP0UwUKKUiTRNvxfLesJnTedqczP7cTDA==
-  dependencies:
-    babel-code-frame "^6.26.0"
-    babel-generator "^6.26.0"
-    babel-helpers "^6.24.1"
-    babel-messages "^6.23.0"
-    babel-register "^6.26.0"
-    babel-runtime "^6.26.0"
-    babel-template "^6.26.0"
-    babel-traverse "^6.26.0"
-    babel-types "^6.26.0"
-    babylon "^6.18.0"
-    convert-source-map "^1.5.1"
-    debug "^2.6.9"
-    json5 "^0.5.1"
-    lodash "^4.17.4"
-    minimatch "^3.0.4"
-    path-is-absolute "^1.0.1"
-    private "^0.1.8"
-    slash "^1.0.0"
-    source-map "^0.5.7"
-
-babel-generator@^6.26.0:
-  version "6.26.1"
-  resolved "https://registry.npmjs.org/babel-generator/-/babel-generator-6.26.1.tgz"
-  integrity sha512-HyfwY6ApZj7BYTcJURpM5tznulaBvyio7/0d4zFOeMPUmfxkCjHocCuoLa2SAGzBI8AREcH3eP3758F672DppA==
-  dependencies:
-    babel-messages "^6.23.0"
-    babel-runtime "^6.26.0"
-    babel-types "^6.26.0"
-    detect-indent "^4.0.0"
-    jsesc "^1.3.0"
-    lodash "^4.17.4"
-    source-map "^0.5.7"
-    trim-right "^1.0.1"
-
-babel-helper-evaluate-path@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.npmjs.org/babel-helper-evaluate-path/-/babel-helper-evaluate-path-0.1.0.tgz"
-  integrity sha512-uYUt1Nt6etJcanj62vbtlKNTtQWTir4UgSYZnm2RKHX2wNChecVdHBsIIlHZzMhFrpH1L8UKMWTdJCKNbbWR6A==
-
-babel-helper-flip-expressions@^0.1.2:
-  version "0.1.2"
-  resolved "https://registry.npmjs.org/babel-helper-flip-expressions/-/babel-helper-flip-expressions-0.1.2.tgz"
-  integrity sha512-n43Vj4t2qos11252JZlgRnI1ow0/eWZ1f+WaFfuTVNwXm0ElK8rKTwZmfRuIywkHSKyiIkn7GeDngQQKKeJKeQ==
-
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   version "1.0.0"
   resolved "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz"
@@ -830,6 +531,15 @@ cliui@^3.2.0:
     strip-ansi "^3.0.1"
     wrap-ansi "^2.0.0"
 
+clone-deep@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/clone-deep/-/clone-deep-4.0.1.tgz#c19fd9bdbbf85942b4fd979c84dcf7d5f07c2387"
+  integrity sha512-neHB9xuzh/wk0dIHweyAXv2aPGZIVk3pLMe+/RNzINf17fe0OG96QroktYAUm7SM1PBnzTabaLboqqxDyMU+SQ==
+  dependencies:
+    is-plain-object "^2.0.4"
+    kind-of "^6.0.2"
+    shallow-clone "^3.0.0"
+
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.npmjs.org/co/-/co-4.6.0.tgz"
@@ -857,6 +567,11 @@ color-name@^1.1.1:
   version "1.1.3"
   resolved "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz"
 
+colorette@^2.0.14:
+  version "2.0.19"
+  resolved "https://registry.yarnpkg.com/colorette/-/colorette-2.0.19.tgz#cdf044f47ad41a0f4b56b3a0d5b4e6e1a2d5a798"
+  integrity sha512-3tlv/dIP7FWvj3BsbHrGLJ6l/oKh1O3TcgBqMn+yyCagOxc23fyzDS6HypQbgxWbkpDnf52p1LuR4eWDQ/K9WQ==
+
 commander@0.6.1:
   version "0.6.1"
   resolved "https://registry.npmjs.org/commander/-/commander-0.6.1.tgz"
@@ -865,6 +580,11 @@ commander@2.3.0:
   version "2.3.0"
   resolved "https://registry.npmjs.org/commander/-/commander-2.3.0.tgz"
 
+commander@^7.0.0:
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-7.2.0.tgz#a36cb57d0b501ce108e4d20559a150a391d97ab7"
+  integrity sha512-QrWXB+ZQSVPmIWIhtEO9H+gwHaMGYiF5ChvoJ+K9ZGHG/sVsa6yiesAD1GC/x46sET00Xlwo1u49RVVVzvcSkw==
+
 component-emitter@^1.2.1:
   version "1.3.0"
   resolved "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.0.tgz"
@@ -892,23 +612,11 @@ constants-browserify@^1.0.0:
   resolved "https://registry.npmjs.org/constants-browserify/-/constants-browserify-1.0.0.tgz"
   integrity sha512-xFxOwqIzR/e1k1gLiWEophSCMqXcwVHIH7akf7b/vxcUeGunlj3hvZaaqxwHsTgn+IndtkQJgSztIDWeumWJDQ==
 
-convert-source-map@^1.5.1:
-  version "1.8.0"
-  resolved "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.8.0.tgz"
-  integrity sha512-+OQdjP49zViI/6i7nIJpA8rAl4sV/JdPfU9nZs3VqOwGIgizICvuN2ru6fMd+4llL0tar18UYJXfZ/TWtmhUjA==
-  dependencies:
-    safe-buffer "~5.1.1"
-
 copy-descriptor@^0.1.0:
   version "0.1.1"
   resolved "https://registry.npmjs.org/copy-descriptor/-/copy-descriptor-0.1.1.tgz"
   integrity sha512-XgZ0pFcakEUlbwQEVNg3+QAis1FyTL3Qel9FYy8pSkQqoG3PNoT0bOCQtOXcOkur21r2Eq2kI+IE+gsmAEVlYw==
 
-core-js@^2.4.0, core-js@^2.5.0:
-  version "2.6.12"
-  resolved "https://registry.npmjs.org/core-js/-/core-js-2.6.12.tgz"
-  integrity sha512-Kb2wC0fvsWfQrgk8HU5lW6U/Lcs8+9aaYcy4ZFc6DDlo4nZ7n70dEgE5rtR0oG6ufKDUnrwfWL1mXR5ljDatrQ==
-
 core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz"
@@ -952,6 +660,15 @@ cross-spawn@^5.1.0:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
+cross-spawn@^7.0.3:
+  version "7.0.3"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-7.0.3.tgz#f73a85b9d5d41d045551c177e2882d4ac85728a6"
+  integrity sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w==
+  dependencies:
+    path-key "^3.1.0"
+    shebang-command "^2.0.0"
+    which "^2.0.1"
+
 crypto-browserify@^3.11.0:
   version "3.12.0"
   resolved "https://registry.npmjs.org/crypto-browserify/-/crypto-browserify-3.12.0.tgz"
@@ -983,7 +700,7 @@ debug@2.2.0, debug@^2.2.0:
   dependencies:
     ms "0.7.1"
 
-debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
+debug@^2.3.3:
   version "2.6.9"
   resolved "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz"
   integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
@@ -1058,13 +775,6 @@ des.js@^1.0.0:
     inherits "^2.0.1"
     minimalistic-assert "^1.0.0"
 
-detect-indent@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.npmjs.org/detect-indent/-/detect-indent-4.0.0.tgz"
-  integrity sha512-BDKtmHlOzwI7iRuEkhzsnPoi5ypEhWAJB5RvHWe1kMr06js3uK5B3734i3ui5Yd+wOJV1cpE4JnivPD283GU/A==
-  dependencies:
-    repeating "^2.0.0"
-
 diff@1.4.0:
   version "1.4.0"
   resolved "https://registry.npmjs.org/diff/-/diff-1.4.0.tgz"
@@ -1117,6 +827,11 @@ enhanced-resolve@^3.3.0:
     object-assign "^4.0.1"
     tapable "^0.2.7"
 
+envinfo@^7.7.3:
+  version "7.8.1"
+  resolved "https://registry.yarnpkg.com/envinfo/-/envinfo-7.8.1.tgz#06377e3e5f4d379fea7ac592d5ad8927e0c4d475"
+  integrity sha512-/o+BXHmB7ocbHEAs6F2EnG0ogybVVUdkRunTT2glZU9XAaGmhqskrvKwqXuDfNjEO0LZKWdejEEpnq8aM0tOaw==
+
 errno@^0.1.3:
   version "0.1.8"
   resolved "https://registry.npmjs.org/errno/-/errno-0.1.8.tgz"
@@ -1408,6 +1123,11 @@ fast-levenshtein@~2.0.4:
   version "2.0.6"
   resolved "https://registry.npmjs.org/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz"
 
+fastest-levenshtein@^1.0.12:
+  version "1.0.12"
+  resolved "https://registry.yarnpkg.com/fastest-levenshtein/-/fastest-levenshtein-1.0.12.tgz#9990f7d3a88cc5a9ffd1f1745745251700d497e2"
+  integrity sha512-On2N+BpYJ15xIC974QNVuYGMOlEVt4s0EOI3wwMqOmK1fdDY+FN/zltPV8vosq4ad4c/gJ1KHScUn/6AWIgiow==
+
 figures@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/figures/-/figures-2.0.0.tgz"
@@ -1451,6 +1171,14 @@ find-up@^1.0.0:
     path-exists "^2.0.0"
     pinkie-promise "^2.0.0"
 
+find-up@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-4.1.0.tgz#97afe7d6cdc0bc5928584b7c8d7b16e8a9aa5d19"
+  integrity sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==
+  dependencies:
+    locate-path "^5.0.0"
+    path-exists "^4.0.0"
+
 flat-cache@^1.2.1:
   version "1.3.0"
   resolved "https://registry.npmjs.org/flat-cache/-/flat-cache-1.3.0.tgz"
@@ -1549,11 +1277,6 @@ globals@^11.0.1:
   version "11.3.0"
   resolved "https://registry.npmjs.org/globals/-/globals-11.3.0.tgz"
 
-globals@^9.18.0:
-  version "9.18.0"
-  resolved "https://registry.npmjs.org/globals/-/globals-9.18.0.tgz"
-  integrity sha512-S0nG3CLEQiY/ILxqtztTWH/3iRRdyBLw6KMDxnKMchrtbj2OFmehVh0WUCfW3DUrIgx/qFrJPICrq4Z4sTR9UQ==
-
 globby@^5.0.0:
   version "5.0.0"
   resolved "https://registry.npmjs.org/globby/-/globby-5.0.0.tgz"
@@ -1652,14 +1375,6 @@ hmac-drbg@^1.0.1:
     minimalistic-assert "^1.0.0"
     minimalistic-crypto-utils "^1.0.1"
 
-home-or-tmp@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.npmjs.org/home-or-tmp/-/home-or-tmp-2.0.0.tgz"
-  integrity sha512-ycURW7oUxE2sNiPVw1HVEFsW+ecOpJ5zaj7eC0RlwhibhRBod20muUN8qu/gzx956YrLolVvs1MTXwKgC2rVEg==
-  dependencies:
-    os-homedir "^1.0.0"
-    os-tmpdir "^1.0.1"
-
 hosted-git-info@^2.1.4:
   version "2.8.9"
   resolved "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.9.tgz"
@@ -1683,6 +1398,14 @@ ignore@^3.3.3:
   version "3.3.7"
   resolved "https://registry.npmjs.org/ignore/-/ignore-3.3.7.tgz"
 
+import-local@^3.0.2:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/import-local/-/import-local-3.1.0.tgz#b4479df8a5fd44f6cdce24070675676063c95cb4"
+  integrity sha512-ASB07uLtnDs1o6EHjKpX34BKYDSqnFerfTOJL2HvMqF70LnxpjkzDB8J44oT9pu4AMPkQwf8jl6szgvNd2tRIg==
+  dependencies:
+    pkg-dir "^4.2.0"
+    resolve-cwd "^3.0.0"
+
 imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz"
@@ -1732,12 +1455,10 @@ interpret@^1.0.0:
   resolved "https://registry.npmjs.org/interpret/-/interpret-1.4.0.tgz"
   integrity sha512-agE4QfB2Lkp9uICn7BAqoscw4SZP9kTE2hxiFI3jBPmXJfdqiahTbUuKGsMoN2GtqL9AxhYioAcVvgsb1HvRbA==
 
-invariant@^2.2.2:
-  version "2.2.4"
-  resolved "https://registry.npmjs.org/invariant/-/invariant-2.2.4.tgz"
-  integrity sha512-phJfQVBuaJM5raOpJjSfkiD6BpbCE4Ns//LaXl6wGYtUBY83nWS6Rf9tXm2e8VaK60JEjYldbPif/A2B1C2gNA==
-  dependencies:
-    loose-envify "^1.0.0"
+interpret@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/interpret/-/interpret-2.2.0.tgz#1a78a0b5965c40a5416d007ad6f50ad27c417df9"
+  integrity sha512-Ju0Bz/cEia55xDwUWEa8+olFpCiQoypjnQySseKtmjNrnps3P+xfpUmGr90T7yjlVJmOtybRvPXhKMbHr+fWnw==
 
 invert-kv@^1.0.0:
   version "1.0.0"
@@ -1838,11 +1559,6 @@ is-extglob@^2.1.0, is-extglob@^2.1.1:
   resolved "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz"
   integrity sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ==
 
-is-finite@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.npmjs.org/is-finite/-/is-finite-1.1.0.tgz"
-  integrity sha512-cdyMtqX/BOqqNBBiKlIVkytNHm49MtMlYyn1zxzvJKWmFMlGzm+ry5BBfYyeY9YmNKbRSo/o7OX9w9ale0wg3w==
-
 is-fullwidth-code-point@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz"
@@ -1952,7 +1668,7 @@ jest-docblock@^21.0.0:
   version "21.2.0"
   resolved "https://registry.npmjs.org/jest-docblock/-/jest-docblock-21.2.0.tgz"
 
-"js-tokens@^3.0.0 || ^4.0.0", js-tokens@^3.0.2:
+js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz"
 
@@ -1963,11 +1679,6 @@ js-yaml@^3.9.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
-jsesc@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.npmjs.org/jsesc/-/jsesc-1.3.0.tgz"
-  integrity sha512-Mke0DA0QjUWuJlhsE0ZPPhYiJkRap642SmI/4ztCFaUs6V2AiH1sfecc+57NgaryfAA2VR3v6O+CSjC1jZJKOA==
-
 json-loader@^0.5.4:
   version "0.5.7"
   resolved "https://registry.npmjs.org/json-loader/-/json-loader-0.5.7.tgz"
@@ -2068,15 +1779,12 @@ loader-utils@^1.1.0:
     emojis-list "^3.0.0"
     json5 "^1.0.1"
 
-lodash.isplainobject@^4.0.6:
-  version "4.0.6"
-  resolved "https://registry.npmjs.org/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz"
-  integrity sha512-oSXzaWypCMHkPC3NvBEaPHf0KsA5mvPrOPgQWDsbg8n7orZ290M0BmC/jgRZ4vcJ6DTAhjrsSYgdsW/F+MFOBA==
-
-lodash.some@^4.6.0:
-  version "4.6.0"
-  resolved "https://registry.npmjs.org/lodash.some/-/lodash.some-4.6.0.tgz"
-  integrity sha512-j7MJE+TuT51q9ggt4fSgVqro163BEFjAt3u97IqU+JA2DkWl80nFTrowzLpZ/BnpN7rrl0JA/593NAdd8p/scQ==
+locate-path@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-5.0.0.tgz#1afba396afd676a6d42504d0a67a3a7eb9f62aa0"
+  integrity sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==
+  dependencies:
+    p-locate "^4.1.0"
 
 lodash@^4.17.14, lodash@^4.17.4, lodash@^4.3.0:
   version "4.17.21"
@@ -2088,13 +1796,6 @@ longest@^1.0.1:
   resolved "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz"
   integrity sha512-k+yt5n3l48JU4k8ftnKG6V7u32wyH2NfKzeMto9F/QRE0amxy/LayxwlvjjkZEIzqR+19IrtFO8p5kB9QaYUFg==
 
-loose-envify@^1.0.0:
-  version "1.4.0"
-  resolved "https://registry.npmjs.org/loose-envify/-/loose-envify-1.4.0.tgz"
-  integrity sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==
-  dependencies:
-    js-tokens "^3.0.0 || ^4.0.0"
-
 lru-cache@2:
   version "2.7.3"
   resolved "https://registry.npmjs.org/lru-cache/-/lru-cache-2.7.3.tgz"
@@ -2391,11 +2092,6 @@ os-browserify@^0.3.0:
   resolved "https://registry.npmjs.org/os-browserify/-/os-browserify-0.3.0.tgz"
   integrity sha512-gjcpUc3clBf9+210TRaDWbf+rZZZEshZ+DlXMRCeAjp0xhTrnQsKHypIy1J3d5hKdUzj69t708EHtU8P6bUn0A==
 
-os-homedir@^1.0.0:
-  version "1.0.2"
-  resolved "https://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz"
-  integrity sha512-B5JU3cabzk8c67mRRd3ECmROafjYMXbuzlwtqdM8IbS8ktlTix8aFGb2bAGKrSRIlnfKwovGUUr72JUPyOb6kQ==
-
 os-locale@^1.4.0:
   version "1.4.0"
   resolved "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz"
@@ -2403,10 +2099,29 @@ os-locale@^1.4.0:
   dependencies:
     lcid "^1.0.0"
 
-os-tmpdir@^1.0.1, os-tmpdir@~1.0.2:
+os-tmpdir@~1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz"
 
+p-limit@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.3.0.tgz#3dd33c647a214fdfffd835933eb086da0dc21db1"
+  integrity sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==
+  dependencies:
+    p-try "^2.0.0"
+
+p-locate@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-4.1.0.tgz#a3428bb7088b3a60292f66919278b7c297ad4f07"
+  integrity sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==
+  dependencies:
+    p-limit "^2.2.0"
+
+p-try@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.2.0.tgz#cb2868540e313d61de58fafbe35ce9004d5540e6"
+  integrity sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==
+
 pako@~1.0.5:
   version "1.0.11"
   resolved "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz"
@@ -2452,7 +2167,12 @@ path-exists@^2.0.0:
   dependencies:
     pinkie-promise "^2.0.0"
 
-path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
+path-exists@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-4.0.0.tgz#513bdbe2d3b95d7762e8c1137efa195c6c61b5b3"
+  integrity sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==
+
+path-is-absolute@^1.0.0:
   version "1.0.1"
   resolved "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz"
 
@@ -2460,6 +2180,11 @@ path-is-inside@^1.0.1, path-is-inside@^1.0.2:
   version "1.0.2"
   resolved "https://registry.npmjs.org/path-is-inside/-/path-is-inside-1.0.2.tgz"
 
+path-key@^3.1.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/path-key/-/path-key-3.1.1.tgz#581f6ade658cbba65a0d3380de7753295054f375"
+  integrity sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==
+
 path-parse@^1.0.7:
   version "1.0.7"
   resolved "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz"
@@ -2504,6 +2229,13 @@ pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.npmjs.org/pinkie/-/pinkie-2.0.4.tgz"
 
+pkg-dir@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-4.2.0.tgz#f099133df7ede422e81d1d8448270eeb3e4261f3"
+  integrity sha512-HRDzbaKjC+AOWVXxAU/x54COGeIv9eb+6CkDSQoNTt4XyWoIJvuPsXizxu/Fr23EiekbtZwmh1IcIG/l/a10GQ==
+  dependencies:
+    find-up "^4.0.0"
+
 pluralize@^7.0.0:
   version "7.0.0"
   resolved "https://registry.npmjs.org/pluralize/-/pluralize-7.0.0.tgz"
@@ -2521,11 +2253,6 @@ prettier@^1.10.2:
   version "1.10.2"
   resolved "https://registry.npmjs.org/prettier/-/prettier-1.10.2.tgz"
 
-private@^0.1.8:
-  version "0.1.8"
-  resolved "https://registry.npmjs.org/private/-/private-0.1.8.tgz"
-  integrity sha512-VvivMrbvd2nKkiG38qjULzlc+4Vx4wm/whI9pQD35YrARNnhxeiRktSOhSukRLFNlzg6Br/cJPet5J/u19r/mg==
-
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz"
@@ -2650,10 +2377,12 @@ readdirp@~3.6.0:
   dependencies:
     picomatch "^2.2.1"
 
-regenerator-runtime@^0.11.0:
-  version "0.11.1"
-  resolved "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz"
-  integrity sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg==
+rechoir@^0.7.0:
+  version "0.7.1"
+  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.7.1.tgz#9478a96a1ca135b5e88fc027f03ee92d6c645686"
+  integrity sha512-/njmZ8s1wVeR6pjTZ+0nCnv8SpZNRMT2D1RLOJQESlYFDBvwpTA4KWJpZ+sBJ4+vhjILRcK7JIFdGCdxEAAitg==
+  dependencies:
+    resolve "^1.9.0"
 
 regex-not@^1.0.0, regex-not@^1.0.2:
   version "1.0.2"
@@ -2678,13 +2407,6 @@ repeat-string@^1.5.2, repeat-string@^1.6.1:
   resolved "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz"
   integrity sha512-PV0dzCYDNfRi1jCDbJzpW7jNNDRuCOG/jI5ctQcGKt/clZD+YcPS3yIlWuTJMmESC8aevCFmWJy5wjAFgNqN6w==
 
-repeating@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.npmjs.org/repeating/-/repeating-2.0.1.tgz"
-  integrity sha512-ZqtSMuVybkISo2OWvqvm7iHSWngvdaW3IpsT9/uP8v4gMi591LY6h35wdOfvQdWCKFWZWm2Y1Opp4kV7vQKT6A==
-  dependencies:
-    is-finite "^1.0.0"
-
 require-directory@^2.1.1:
   version "2.1.1"
   resolved "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz"
@@ -2702,16 +2424,28 @@ require-uncached@^1.0.3:
     caller-path "^0.1.0"
     resolve-from "^1.0.0"
 
+resolve-cwd@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/resolve-cwd/-/resolve-cwd-3.0.0.tgz#0f0075f1bb2544766cf73ba6a6e2adfebcb13f2d"
+  integrity sha512-OrZaX2Mb+rJCpH/6CpSqt9xFVpN++x01XnN2ie9g6P5/3xelLAkXWVADpdz1IHD/KFfEXyE6V0U01OQ3UO2rEg==
+  dependencies:
+    resolve-from "^5.0.0"
+
 resolve-from@^1.0.0:
   version "1.0.1"
   resolved "https://registry.npmjs.org/resolve-from/-/resolve-from-1.0.1.tgz"
 
+resolve-from@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-5.0.0.tgz#c35225843df8f776df21c57557bc087e9dfdfc69"
+  integrity sha512-qYg9KP24dD5qka9J47d0aVky0N+b4fTU89LN9iDnjB5waksiC49rvMB0PrUJQGoTmH50XPiqOvAjDfaijGxYZw==
+
 resolve-url@^0.2.1:
   version "0.2.1"
   resolved "https://registry.npmjs.org/resolve-url/-/resolve-url-0.2.1.tgz"
   integrity sha512-ZuF55hVUQaaczgOIwqWzkEcEidmlD/xl44x1UZnhOXcYuFN2S6+rcxpG+C1N3So0wvNI3DmJICUFfu2SxhBmvg==
 
-resolve@^1.10.0:
+resolve@^1.10.0, resolve@^1.9.0:
   version "1.22.1"
   resolved "https://registry.npmjs.org/resolve/-/resolve-1.22.1.tgz"
   integrity sha512-nBpuuYuY5jFsli/JIs1oldw6fOQCBioohqWZg/2hiaOybXOft4lonv85uDOKXdf8rhyK159cxU5cDcK/NKk8zw==
@@ -2822,16 +2556,35 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
+shallow-clone@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/shallow-clone/-/shallow-clone-3.0.1.tgz#8f2981ad92531f55035b01fb230769a40e02efa3"
+  integrity sha512-/6KqX+GVUdqPuPPd2LxDDxzX6CAbjJehAAOKlNpqqUpAqPM6HeL8f+o3a+JsyGjn2lv0WY8UsTgUJjU9Ok55NA==
+  dependencies:
+    kind-of "^6.0.2"
+
 shebang-command@^1.2.0:
   version "1.2.0"
   resolved "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz"
   dependencies:
     shebang-regex "^1.0.0"
 
+shebang-command@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-2.0.0.tgz#ccd0af4f8835fbdc265b82461aaf0c36663f34ea"
+  integrity sha512-kHxr2zZpYtdmrN1qDjrrX/Z1rR1kG8Dx+gkpK1G4eXmvXswmcE1hTWBWYUzlraYw1/yZp6YuDY77YtvbN0dmDA==
+  dependencies:
+    shebang-regex "^3.0.0"
+
 shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz"
 
+shebang-regex@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-3.0.0.tgz#ae16f1644d873ecad843b0307b143362d4c42172"
+  integrity sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==
+
 sigmund@~1.0.0:
   version "1.0.1"
   resolved "https://registry.npmjs.org/sigmund/-/sigmund-1.0.1.tgz"
@@ -2840,11 +2593,6 @@ signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz"
 
-slash@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz"
-  integrity sha512-3TYDR7xWt4dIqV2JauJr+EJeW356RXijHeUlO+8djJ+uBXPn8/2dpzBc8yQhh583sVvc9CvFAeQVgijsH+PNNg==
-
 slice-ansi@1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/slice-ansi/-/slice-ansi-1.0.0.tgz"
@@ -2897,19 +2645,12 @@ source-map-resolve@^0.5.0:
     source-map-url "^0.4.0"
     urix "^0.1.0"
 
-source-map-support@^0.4.15:
-  version "0.4.18"
-  resolved "https://registry.npmjs.org/source-map-support/-/source-map-support-0.4.18.tgz"
-  integrity sha512-try0/JqxPLF9nOjvSta7tVondkP5dwgyLDjVoyMDlmjugT2lRZ1OfsrYTkCd2hkDnJTKRbO/Rl3orm8vlsUzbA==
-  dependencies:
-    source-map "^0.5.6"
-
 source-map-url@^0.4.0:
   version "0.4.1"
   resolved "https://registry.npmjs.org/source-map-url/-/source-map-url-0.4.1.tgz"
   integrity sha512-cPiFOTLUKvJFIg4SKVScy4ilPPW6rFgMgfuZJPNoDuMs3nC1HbMUycBoJw77xFIp6z1UJQJOfx6C9GMH80DiTw==
 
-source-map@^0.5.3, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.1:
+source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
   version "0.5.7"
   resolved "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz"
   integrity sha512-LbrmJOMUSdEVxIKvdcJzQC+nQhe8FUZQTXQy6+I75skNgn3OoQ0DZA8YnFa7gp8tqtL3KPf1kmo0R5DoApeSGQ==
@@ -3098,11 +2839,6 @@ to-arraybuffer@^1.0.0:
   resolved "https://registry.npmjs.org/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz"
   integrity sha512-okFlQcoGTi4LQBG/PgSYblw9VOyptsz2KJZqc6qtgGdes8VktzUQkj4BI2blit072iS8VODNcMA+tvnS9dnuMA==
 
-to-fast-properties@^1.0.3:
-  version "1.0.3"
-  resolved "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-1.0.3.tgz"
-  integrity sha512-lxrWP8ejsq+7E3nNjwYmUBMAgjMTZoTI+sdBOpvNyijeDLa29LUn9QaoXAHv4+Z578hbmHHJKZknzxVtvo77og==
-
 to-iso-string@0.0.2:
   version "0.0.2"
   resolved "https://registry.npmjs.org/to-iso-string/-/to-iso-string-0.0.2.tgz"
@@ -3139,11 +2875,6 @@ to-regex@^3.0.1, to-regex@^3.0.2:
     regex-not "^1.0.2"
     safe-regex "^1.1.0"
 
-trim-right@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz"
-  integrity sha512-WZGXGstmCWgeevgTL54hrCuw1dyMQIzWy7ZfqRJfSmJZBwklI15egmQytFP6bPidmw3M8d5yEowl1niq4vmqZw==
-
 tty-browserify@0.0.0:
   version "0.0.0"
   resolved "https://registry.npmjs.org/tty-browserify/-/tty-browserify-0.0.0.tgz"
@@ -3287,6 +3018,32 @@ watchpack@^1.3.1:
     chokidar "^3.4.1"
     watchpack-chokidar2 "^2.0.1"
 
+webpack-cli@^4.10.0:
+  version "4.10.0"
+  resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-4.10.0.tgz#37c1d69c8d85214c5a65e589378f53aec64dab31"
+  integrity sha512-NLhDfH/h4O6UOy+0LSso42xvYypClINuMNBVVzX4vX98TmTaTUxwRbXdhucbFMd2qLaCTcLq/PdYrvi8onw90w==
+  dependencies:
+    "@discoveryjs/json-ext" "^0.5.0"
+    "@webpack-cli/configtest" "^1.2.0"
+    "@webpack-cli/info" "^1.5.0"
+    "@webpack-cli/serve" "^1.7.0"
+    colorette "^2.0.14"
+    commander "^7.0.0"
+    cross-spawn "^7.0.3"
+    fastest-levenshtein "^1.0.12"
+    import-local "^3.0.2"
+    interpret "^2.2.0"
+    rechoir "^0.7.0"
+    webpack-merge "^5.7.3"
+
+webpack-merge@^5.7.3:
+  version "5.8.0"
+  resolved "https://registry.yarnpkg.com/webpack-merge/-/webpack-merge-5.8.0.tgz#2b39dbf22af87776ad744c390223731d30a68f61"
+  integrity sha512-/SaI7xY0831XwP6kzuwhKWVKDP9t1QY1h65lAFLbZqMPIuYcD9QAW4u9STIbU9kaJbPBB/geU/gLr1wDjOhQ+Q==
+  dependencies:
+    clone-deep "^4.0.1"
+    wildcard "^2.0.0"
+
 webpack-sources@^1.0.1:
   version "1.4.3"
   resolved "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.4.3.tgz"
@@ -3334,6 +3091,18 @@ which@^1.2.9:
   dependencies:
     isexe "^2.0.0"
 
+which@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/which/-/which-2.0.2.tgz#7c6a8dd0a636a0327e10b59c9286eee93f3f51b1"
+  integrity sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==
+  dependencies:
+    isexe "^2.0.0"
+
+wildcard@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/wildcard/-/wildcard-2.0.0.tgz#a77d20e5200c6faaac979e4b3aadc7b3dd7f8fec"
+  integrity sha512-JcKqAHLPxcdb9KM49dufGXn2x3ssnfjbcaQdLlfZsL9rH9wgDQjUtDxbo8NE0F6SFvydeu1VhZe7hZuHsB2/pw==
+
 window-size@0.1.0:
   version "0.1.0"
   resolved "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz"