From 833b22aef9c08c7939e93f944df9a9b4aeed048b Mon Sep 17 00:00:00 2001
From: szymonrybczak <szymon.rybczak@gmail.com>
Date: Sat, 1 Apr 2023 12:38:04 +0200
Subject: [PATCH] feat: add `newArchEnabled` and `hermesEnabled` to `info`
 command

---
 packages/cli-doctor/package.json         |  3 +-
 packages/cli-doctor/src/commands/info.ts | 79 +++++++++++++++++++++++-
 yarn.lock                                |  5 ++
 3 files changed, 84 insertions(+), 3 deletions(-)

diff --git a/packages/cli-doctor/package.json b/packages/cli-doctor/package.json
index 6926d666b..7e09570fb 100644
--- a/packages/cli-doctor/package.json
+++ b/packages/cli-doctor/package.json
@@ -24,7 +24,8 @@
     "semver": "^6.3.0",
     "strip-ansi": "^5.2.0",
     "sudo-prompt": "^9.0.0",
-    "wcwidth": "^1.0.1"
+    "wcwidth": "^1.0.1",
+    "yaml": "^2.2.1"
   },
   "files": [
     "build",
diff --git a/packages/cli-doctor/src/commands/info.ts b/packages/cli-doctor/src/commands/info.ts
index e5b754a73..08117e2ef 100644
--- a/packages/cli-doctor/src/commands/info.ts
+++ b/packages/cli-doctor/src/commands/info.ts
@@ -8,12 +8,87 @@
 import getEnvironmentInfo from '../tools/envinfo';
 import {logger, version} from '@react-native-community/cli-tools';
 import {Config} from '@react-native-community/cli-types';
+import {readFile} from 'fs-extra';
+import path from 'path';
+import {stringify} from 'yaml';
+
+type PlatformValues = {
+  hermesEnabled: boolean | string;
+  newArchEnabled: boolean | string;
+};
+
+interface Platforms {
+  Android: PlatformValues;
+  iOS: PlatformValues;
+}
 
 const info = async function getInfo(_argv: Array<string>, ctx: Config) {
   try {
     logger.info('Fetching system and libraries information...');
-    const output = await getEnvironmentInfo(false);
-    logger.log(output);
+
+    const notFound = 'Not found';
+
+    const platforms: Platforms = {
+      Android: {
+        hermesEnabled: notFound,
+        newArchEnabled: notFound,
+      },
+      iOS: {
+        hermesEnabled: notFound,
+        newArchEnabled: notFound,
+      },
+    };
+
+    if (process.platform !== 'win32' && ctx.project.ios?.sourceDir) {
+      try {
+        const podfile = await readFile(
+          path.join(ctx.project.ios.sourceDir, '/Podfile.lock'),
+          'utf8',
+        );
+
+        platforms.iOS.hermesEnabled = podfile.includes('hermes-engine');
+      } catch (e) {
+        platforms.iOS.hermesEnabled = notFound;
+      }
+
+      try {
+        const project = await readFile(
+          path.join(
+            ctx.project.ios.sourceDir,
+            '/Pods/Pods.xcodeproj/project.pbxproj',
+          ),
+        );
+
+        platforms.iOS.newArchEnabled = project.includes(
+          '-DRCT_NEW_ARCH_ENABLED=1',
+        );
+      } catch {
+        platforms.iOS.newArchEnabled = notFound;
+      }
+    }
+
+    if (ctx.project.android?.sourceDir) {
+      try {
+        const gradleProperties = await readFile(
+          path.join(ctx.project.android.sourceDir, '/gradle.properties'),
+          'utf8',
+        );
+
+        platforms.Android.hermesEnabled = gradleProperties.includes(
+          'hermesEnabled=true',
+        );
+        platforms.Android.newArchEnabled = gradleProperties.includes(
+          'newArchEnabled=true',
+        );
+      } catch {
+        platforms.Android.hermesEnabled = notFound;
+        platforms.Android.newArchEnabled = notFound;
+      }
+    }
+
+    const output = await getEnvironmentInfo();
+
+    logger.log(stringify({...output, ...platforms}));
   } catch (err) {
     logger.error(`Unable to print environment info.\n${err}`);
   } finally {
diff --git a/yarn.lock b/yarn.lock
index 7b05eee33..ede24f6ce 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -13307,6 +13307,11 @@ yaml@^2.1.3:
   resolved "https://registry.yarnpkg.com/yaml/-/yaml-2.1.3.tgz#9b3a4c8aff9821b696275c79a8bee8399d945207"
   integrity sha512-AacA8nRULjKMX2DvWvOAdBZMOfQlypSFkjcOcu9FalllIDJ1kvlREzcdIZmidQUqqeMv7jorHjq2HlLv/+c2lg==
 
+yaml@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/yaml/-/yaml-2.2.1.tgz#3014bf0482dcd15147aa8e56109ce8632cd60ce4"
+  integrity sha512-e0WHiYql7+9wr4cWMx3TVQrNwejKaEe7/rHNmQmqRjazfOP5W8PB6Jpebb5o6fIapbz9o9+2ipcaTM2ZwDI6lw==
+
 yargs-parser@20.2.4:
   version "20.2.4"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-20.2.4.tgz#b42890f14566796f85ae8e3a25290d205f154a54"