From 425446b7e6f73f762cd5099f35e32bfa90b2ecfb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=B2=20Ribaudo?= <nicolo.ribaudo@gmail.com>
Date: Wed, 25 Dec 2019 00:54:36 +0100
Subject: [PATCH 1/2] Replace custom "fundSuggestion" function with "levenary"

---
 lib/third-party-libs.js.flow                       |  6 ------
 packages/babel-preset-env/package.json             |  2 +-
 packages/babel-preset-env/src/normalize-options.js |  2 +-
 packages/babel-preset-env/src/targets-parser.js    |  8 ++------
 packages/babel-preset-env/src/utils.js             | 13 -------------
 packages/babel-preset-env/test/utils.spec.js       | 12 +-----------
 6 files changed, 5 insertions(+), 38 deletions(-)

diff --git a/lib/third-party-libs.js.flow b/lib/third-party-libs.js.flow
index e4c31f2f42cd..f7314b07027e 100644
--- a/lib/third-party-libs.js.flow
+++ b/lib/third-party-libs.js.flow
@@ -190,12 +190,6 @@ declare module "convert-source-map" {
   };
 }
 
-declare module "js-levenshtein" {
-  declare module.exports: {
-    (string, string): number,
-  };
-}
-
 declare module "core-js-compat/data" {
   declare type Target = "node" | "chrome" | "opera" | "edge" | "firefox" | "safari" | "ie" | "ios" | "android" | "electron" | "samsung";
 
diff --git a/packages/babel-preset-env/package.json b/packages/babel-preset-env/package.json
index efd61c921943..49f5de08e636 100644
--- a/packages/babel-preset-env/package.json
+++ b/packages/babel-preset-env/package.json
@@ -63,7 +63,7 @@
     "browserslist": "^4.6.0",
     "core-js-compat": "^3.6.0",
     "invariant": "^2.2.2",
-    "js-levenshtein": "^1.1.3",
+    "levenary": "^1.0.2",
     "semver": "^5.5.0"
   },
   "peerDependencies": {
diff --git a/packages/babel-preset-env/src/normalize-options.js b/packages/babel-preset-env/src/normalize-options.js
index 523857ea5832..79998befaeb4 100644
--- a/packages/babel-preset-env/src/normalize-options.js
+++ b/packages/babel-preset-env/src/normalize-options.js
@@ -8,7 +8,7 @@ import moduleTransformations from "./module-transformations";
 import { TopLevelOptions, ModulesOption, UseBuiltInsOption } from "./options";
 import { defaultWebIncludes } from "./polyfills/corejs2/get-platform-specific-default";
 import { isBrowsersQueryValid } from "./targets-parser";
-import { findSuggestion } from "./utils";
+import findSuggestion from "levenary";
 
 import type {
   BuiltInsOption,
diff --git a/packages/babel-preset-env/src/targets-parser.js b/packages/babel-preset-env/src/targets-parser.js
index 4c006bf2f073..f2284e715ca4 100644
--- a/packages/babel-preset-env/src/targets-parser.js
+++ b/packages/babel-preset-env/src/targets-parser.js
@@ -3,12 +3,8 @@
 import browserslist from "browserslist";
 import invariant from "invariant";
 import semver from "semver";
-import {
-  semverify,
-  isUnreleasedVersion,
-  getLowestUnreleased,
-  findSuggestion,
-} from "./utils";
+import findSuggestion from "levenary";
+import { semverify, isUnreleasedVersion, getLowestUnreleased } from "./utils";
 import browserModulesData from "../data/built-in-modules.json";
 import { TargetNames } from "./options";
 import type { Targets } from "./types";
diff --git a/packages/babel-preset-env/src/utils.js b/packages/babel-preset-env/src/utils.js
index cb35951a8f87..5b5aaae9b6f2 100644
--- a/packages/babel-preset-env/src/utils.js
+++ b/packages/babel-preset-env/src/utils.js
@@ -4,7 +4,6 @@ import * as t from "@babel/types";
 import type { NodePath } from "@babel/traverse";
 import invariant from "invariant";
 import semver from "semver";
-import levenshtein from "js-levenshtein";
 import { addSideEffect } from "@babel/helper-module-imports";
 import unreleasedLabels from "../data/unreleased-labels";
 import { semverMin } from "./targets-parser";
@@ -53,18 +52,6 @@ export function intersection<T>(
   return result;
 }
 
-export function findSuggestion(options: string[], option: string): string {
-  let levenshteinValue = Infinity;
-  return options.reduce((suggestion, validOption) => {
-    const value = levenshtein(validOption, option);
-    if (value < levenshteinValue) {
-      levenshteinValue = value;
-      return validOption;
-    }
-    return suggestion;
-  }, "");
-}
-
 export function prettifyVersion(version: string) {
   if (typeof version !== "string") {
     return version;
diff --git a/packages/babel-preset-env/test/utils.spec.js b/packages/babel-preset-env/test/utils.spec.js
index 6a6bb48d3919..a5ca4256cda5 100644
--- a/packages/babel-preset-env/test/utils.spec.js
+++ b/packages/babel-preset-env/test/utils.spec.js
@@ -2,7 +2,7 @@
 
 const utils = require("../lib/utils");
 
-const { prettifyTargets, prettifyVersion, semverify, findSuggestion } = utils;
+const { prettifyTargets, prettifyVersion, semverify } = utils;
 
 describe("utils", () => {
   describe("semverify", () => {
@@ -50,14 +50,4 @@ describe("utils", () => {
       });
     });
   });
-
-  describe("findSuggestion", () => {
-    it("returns", () => {
-      const options = ["one", "two", "three"];
-      expect(findSuggestion(options, "onr")).toEqual("one");
-      expect(findSuggestion(options, "tree")).toEqual("three");
-      expect(findSuggestion(options, "")).toEqual("one");
-      expect(findSuggestion(options, "xxx")).toEqual("one");
-    });
-  });
 });

From e6e7f35b0eada0560b8d221a2495a634780f9bd2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=B2=20Ribaudo?= <nicolo.ribaudo@gmail.com>
Date: Thu, 26 Dec 2019 00:44:11 +0100
Subject: [PATCH 2/2] Update

---
 packages/babel-preset-env/package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/babel-preset-env/package.json b/packages/babel-preset-env/package.json
index 49f5de08e636..17bfe8f75f13 100644
--- a/packages/babel-preset-env/package.json
+++ b/packages/babel-preset-env/package.json
@@ -63,7 +63,7 @@
     "browserslist": "^4.6.0",
     "core-js-compat": "^3.6.0",
     "invariant": "^2.2.2",
-    "levenary": "^1.0.2",
+    "levenary": "^1.1.0",
     "semver": "^5.5.0"
   },
   "peerDependencies": {