From c1307f5abc7f162f7ed2594f73125dc46ce3cee1 Mon Sep 17 00:00:00 2001
From: Myk Melez <myk@junelife.com>
Date: Fri, 20 May 2022 09:28:13 -0700
Subject: [PATCH] suggest running setup.sh as root for App Store-installed
 Xcode

---
 README.md |  2 +-
 setup.sh  | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 200bef9..45fab14 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ You can check your UUID with this command:
 ```sh
 $ defaults read /Applications/Xcode.app/Contents/Info DVTPlugInCompatibilityUUID
 ```
-Once the UUID is added, execute the `setup.sh` script
+Once the UUID is added, execute the `setup.sh` script. If /Applications/Xcode.app is installed via the App Store, then you'll need to run the script as root (for example, via `sudo setup.sh`) to successfully install the language specifications and metadata files.
 
 You may have to quit and reopen Xcode once or twice and click the `Load Bundle` button in a popup that should appear automatically.
 
diff --git a/setup.sh b/setup.sh
index 9e6a4ae..4a8cf3c 100755
--- a/setup.sh
+++ b/setup.sh
@@ -21,6 +21,13 @@ spec_dir="${xcode_path}/SharedFrameworks/SourceModel.framework/Versions/A/Resour
 
 # Copy the language specification to the specs directory
 cp Specifications/Rust.xclangspec $spec_dir
+
+result=$?
+if [ $result -ne 0 ]; then
+    echo "Error copying Rust.xclangspec; do you need to run this script as root?"
+    exit $result
+fi
+
 #cp Specifications/Rust.xcspec $spec_dir
 
 # Get language metadata directory
@@ -29,6 +36,12 @@ metadata_dir="${xcode_path}/SharedFrameworks/SourceModel.framework/Versions/A/Re
 # Copy the source code language plist to the metadata directory
 cp Xcode.SourceCodeLanguage.Rust.plist $metadata_dir
 
+result=$?
+if [ $result -ne 0 ]; then
+    echo "Error copying Xcode.SourceCodeLanguage.Rust.plist; do you need to run this script as root?"
+    exit $result
+fi
+
 defaults read ${xcode_path}/Info DVTPlugInCompatibilityUUID
 
 echo "Please restart Xcode"