From 88bc357325ba278527d8cba956e828f5744c8a34 Mon Sep 17 00:00:00 2001
From: chip <chip@chip.sh>
Date: Fri, 23 Aug 2024 13:46:23 +0200
Subject: [PATCH] fix: generate `Context` inside a thread (#10734)

* generate `Context` inside a thread

fix #9882

this is a workaround for #9882 due to windows having a small
stack size for the main thread (1MiB) versus other platforms which
have 8MiB. the true fix would be to lower the generated code
stack size, but with lots a plugins, there are lots of ACL
configurations.

* add change file [skip ci]

---------

Co-authored-by: Lucas Nogueira <lucas@tauri.studio>
---
 .changes/fix-context-stack-size.md |  5 +++++
 core/tauri-codegen/src/context.rs  | 18 +++++++++++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 .changes/fix-context-stack-size.md

diff --git a/.changes/fix-context-stack-size.md b/.changes/fix-context-stack-size.md
new file mode 100644
index 00000000000..72c2aba66d5
--- /dev/null
+++ b/.changes/fix-context-stack-size.md
@@ -0,0 +1,5 @@
+---
+"tauri-codegen": patch:bug
+---
+
+Generate context in a separate thread to prevent a stack overflow.
diff --git a/core/tauri-codegen/src/context.rs b/core/tauri-codegen/src/context.rs
index fd06092f301..ecbbc136023 100644
--- a/core/tauri-codegen/src/context.rs
+++ b/core/tauri-codegen/src/context.rs
@@ -489,7 +489,7 @@ pub fn context_codegen(data: ContextData) -> EmbeddedAssetsResult<TokenStream> {
     quote!()
   };
 
-  Ok(quote!({
+  let context = quote!({
     #[allow(unused_mut, clippy::let_and_return)]
     let mut context = #root::Context::new(
       #config,
@@ -507,6 +507,22 @@ pub fn context_codegen(data: ContextData) -> EmbeddedAssetsResult<TokenStream> {
     #maybe_config_parent_setter
 
     context
+  });
+
+  Ok(quote!({
+    let thread = ::std::thread::Builder::new()
+      .name(String::from("generated tauri context creation"))
+      .stack_size(8 * 1024 * 1024)
+      .spawn(|| #context)
+      .expect("unable to create thread with 8MiB stack");
+
+    match thread.join() {
+      Ok(context) => context,
+      Err(_) => {
+        eprintln!("the generated Tauri `Context` panicked during creation");
+        ::std::process::exit(101);
+      }
+    }
   }))
 }