From 56ffd29bc85430fe93c0119bd6f5c28cfcdb58ca Mon Sep 17 00:00:00 2001
From: Fabian-Lars <fabianlars@fabianlars.de>
Date: Mon, 15 Jul 2024 19:00:43 +0200
Subject: [PATCH] fix(core/windows): Remove UNC prefix from tempdir fn (#10288)

fixes #10285
---
 .changes/fix-remove-tempdir-unc-prefix.md    | 5 +++++
 core/tauri/src/endpoints/operating_system.rs | 7 ++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 .changes/fix-remove-tempdir-unc-prefix.md

diff --git a/.changes/fix-remove-tempdir-unc-prefix.md b/.changes/fix-remove-tempdir-unc-prefix.md
new file mode 100644
index 000000000000..a709c171c129
--- /dev/null
+++ b/.changes/fix-remove-tempdir-unc-prefix.md
@@ -0,0 +1,5 @@
+---
+tauri: "patch:bug"
+---
+
+Fixed a regression that added the `\\?\` UNC prefix to the path returned from the `tempdir()` command.
diff --git a/core/tauri/src/endpoints/operating_system.rs b/core/tauri/src/endpoints/operating_system.rs
index 365cb4059e76..5511a68efba6 100644
--- a/core/tauri/src/endpoints/operating_system.rs
+++ b/core/tauri/src/endpoints/operating_system.rs
@@ -42,7 +42,12 @@ impl Cmd {
   }
 
   fn tempdir<R: Runtime>(_context: InvokeContext<R>) -> super::Result<PathBuf> {
-    Ok(std::env::temp_dir().canonicalize()?)
+    #[cfg(windows)]
+    use dunce::canonicalize;
+    #[cfg(not(windows))]
+    use std::fs::canonicalize;
+
+    Ok(canonicalize(std::env::temp_dir())?)
   }
 
   fn locale<R: Runtime>(_context: InvokeContext<R>) -> super::Result<Option<String>> {