From 0cad8523c05e1c4a420dd74ba53312c70794e307 Mon Sep 17 00:00:00 2001
From: Henry Zhu <hi@henryzoo.com>
Date: Thu, 25 Mar 2021 23:07:09 -0400
Subject: [PATCH] inline escapeRegExp instead of using any dep

---
 lib/third-party-libs.js.flow                               | 4 ----
 packages/babel-core/src/config/helpers/escape-regexp.cjs   | 5 -----
 packages/babel-core/src/config/pattern-to-regex.js         | 7 ++++---
 .../src/escape-regexp.cjs                                  | 5 -----
 .../src/index.ts                                           | 6 ++++--
 packages/babel-register/src/escape-regexp.cjs              | 5 -----
 packages/babel-register/src/node.js                        | 5 ++++-
 7 files changed, 12 insertions(+), 25 deletions(-)
 delete mode 100644 packages/babel-core/src/config/helpers/escape-regexp.cjs
 delete mode 100644 packages/babel-helper-transform-fixture-test-runner/src/escape-regexp.cjs
 delete mode 100644 packages/babel-register/src/escape-regexp.cjs

diff --git a/lib/third-party-libs.js.flow b/lib/third-party-libs.js.flow
index 6c1c06f1d4b5..e5782e65f95c 100644
--- a/lib/third-party-libs.js.flow
+++ b/lib/third-party-libs.js.flow
@@ -30,10 +30,6 @@ declare module "lodash/merge" {
   declare export default <T: Object>(T, Object) => T;
 }
 
-declare module "lodash/escapeRegExp" {
-  declare export default (toEscape?: string) => string;
-}
-
 declare module "semver" {
   declare class SemVer {
     build: Array<string>;
diff --git a/packages/babel-core/src/config/helpers/escape-regexp.cjs b/packages/babel-core/src/config/helpers/escape-regexp.cjs
deleted file mode 100644
index a3a4be68f185..000000000000
--- a/packages/babel-core/src/config/helpers/escape-regexp.cjs
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = process.env.BABEL_8_BREAKING
-  ? require("escape-string-regexp")
-  : require("lodash/escapeRegExp");
diff --git a/packages/babel-core/src/config/pattern-to-regex.js b/packages/babel-core/src/config/pattern-to-regex.js
index 12b74eee9324..8e868b3c6ffd 100644
--- a/packages/babel-core/src/config/pattern-to-regex.js
+++ b/packages/babel-core/src/config/pattern-to-regex.js
@@ -1,9 +1,6 @@
 // @flow
 import path from "path";
 
-// $FlowIgnore
-import escapeRegExp from "./helpers/escape-regexp.cjs";
-
 const sep = `\\${path.sep}`;
 const endSep = `(?:${sep}|$)`;
 
@@ -15,6 +12,10 @@ const starPatLast = `(?:${substitution}${endSep})`;
 const starStarPat = `${starPat}*?`;
 const starStarPatLast = `${starPat}*?${starPatLast}?`;
 
+function escapeRegExp(string) {
+  return string.replace(/[|\\{}()[\]^$+*?.]/g, "\\$&");
+}
+
 /**
  * Implement basic pattern matching that will allow users to do the simple
  * tests with * and **. If users want full complex pattern matching, then can
diff --git a/packages/babel-helper-transform-fixture-test-runner/src/escape-regexp.cjs b/packages/babel-helper-transform-fixture-test-runner/src/escape-regexp.cjs
deleted file mode 100644
index a3a4be68f185..000000000000
--- a/packages/babel-helper-transform-fixture-test-runner/src/escape-regexp.cjs
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = process.env.BABEL_8_BREAKING
-  ? require("escape-string-regexp")
-  : require("lodash/escapeRegExp");
diff --git a/packages/babel-helper-transform-fixture-test-runner/src/index.ts b/packages/babel-helper-transform-fixture-test-runner/src/index.ts
index 5d11d54a3d44..3eb1b77f0e8b 100644
--- a/packages/babel-helper-transform-fixture-test-runner/src/index.ts
+++ b/packages/babel-helper-transform-fixture-test-runner/src/index.ts
@@ -14,8 +14,6 @@ import fs from "fs";
 import path from "path";
 import vm from "vm";
 import QuickLRU from "quick-lru";
-// @ts-ignore
-import escapeRegExp from "./escape-regexp.cjs";
 import { fileURLToPath } from "url";
 
 import { createRequire } from "module";
@@ -345,6 +343,10 @@ function validateFile(actualCode, expectedLoc, expectedCode) {
   }
 }
 
+function escapeRegExp(string) {
+  return string.replace(/[|\\{}()[\]^$+*?.]/g, "\\$&");
+}
+
 function normalizeOutput(code, normalizePathSeparator?) {
   const projectRoot = path.resolve(
     path.dirname(fileURLToPath(import.meta.url)),
diff --git a/packages/babel-register/src/escape-regexp.cjs b/packages/babel-register/src/escape-regexp.cjs
deleted file mode 100644
index a3a4be68f185..000000000000
--- a/packages/babel-register/src/escape-regexp.cjs
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = process.env.BABEL_8_BREAKING
-  ? require("escape-string-regexp")
-  : require("lodash/escapeRegExp");
diff --git a/packages/babel-register/src/node.js b/packages/babel-register/src/node.js
index 62196e635c5e..3a9eb082f7f6 100644
--- a/packages/babel-register/src/node.js
+++ b/packages/babel-register/src/node.js
@@ -7,7 +7,6 @@ import { addHook } from "pirates";
 import fs from "fs";
 import path from "path";
 import Module from "module";
-import escapeRegExp from "./escape-regexp.cjs";
 
 const maps = {};
 let transformOpts = {};
@@ -109,6 +108,10 @@ export function revert() {
   if (piratesRevert) piratesRevert();
 }
 
+function escapeRegExp(string) {
+  return string.replace(/[|\\{}()[\]^$+*?.]/g, "\\$&");
+}
+
 export default function register(opts?: Object = {}) {
   // Clone to avoid mutating the arguments object with the 'delete's below.
   opts = {