From 86b4012b92362ecf9514fcbc642c539f8f8c5282 Mon Sep 17 00:00:00 2001
From: David Alberto Adler <dalberto.adler@gmail.com>
Date: Mon, 17 Jan 2022 04:08:06 -0800
Subject: [PATCH] Respect `mangle: false` & `sourceMap: false` in
 `minifierConfig` (#749)

Summary:
Fixes https://github.com/facebook/metro/issues/301

Pull Request resolved: https://github.com/facebook/metro/pull/749

Reviewed By: motiz88

Differential Revision: D33398597

Pulled By: rh389

fbshipit-source-id: c6fff45e20df500977215bebe6707d0bb84e84d2
---
 packages/metro-minify-terser/src/minifier.js | 21 ++++++++++++-------
 packages/metro-minify-uglify/src/minifier.js | 22 +++++++++++++-------
 2 files changed, 27 insertions(+), 16 deletions(-)

diff --git a/packages/metro-minify-terser/src/minifier.js b/packages/metro-minify-terser/src/minifier.js
index 025e8b0386..8b9c27fee6 100644
--- a/packages/metro-minify-terser/src/minifier.js
+++ b/packages/metro-minify-terser/src/minifier.js
@@ -33,15 +33,20 @@ function minify({code, map, reserved, config}: MinifierOptions): {
 } {
   const options = {
     ...config,
-    mangle: {
-      ...config.mangle,
-      reserved,
-    },
+    mangle:
+      config.mangle === false
+        ? false
+        : {
+            ...config.mangle,
+            reserved,
+          },
     sourceMap: map
-      ? {
-          ...config.sourceMap,
-          content: map,
-        }
+      ? config.sourceMap === false
+        ? false
+        : {
+            ...config.sourceMap,
+            content: map,
+          }
       : false,
   };
 
diff --git a/packages/metro-minify-uglify/src/minifier.js b/packages/metro-minify-uglify/src/minifier.js
index 5578d1224c..9ba64514cd 100644
--- a/packages/metro-minify-uglify/src/minifier.js
+++ b/packages/metro-minify-uglify/src/minifier.js
@@ -34,14 +34,20 @@ function minify({code, map, reserved, config}: MinifierOptions): {
 } {
   const options = {
     ...config,
-    mangle: {
-      ...config.mangle,
-      reserved,
-    },
-    sourceMap: {
-      ...config.sourceMap,
-      content: map,
-    },
+    mangle:
+      config.mangle === false
+        ? false
+        : {
+            ...config.mangle,
+            reserved,
+          },
+    sourceMap:
+      config.sourceMap === false
+        ? false
+        : {
+            ...config.sourceMap,
+            content: map,
+          },
   };
 
   /* $FlowFixMe(>=0.111.0 site=react_native_fb) This comment suppresses an