From 8bdd6fdb316aecca1da60cf33b652213da954065 Mon Sep 17 00:00:00 2001
From: Lucas Nogueira <lucas@tauri.app>
Date: Mon, 10 Nov 2025 10:51:28 -0300
Subject: [PATCH] copy cef files to out dir

---
 crates/tauri-cli/src/cef/macos_dev.rs  | 20 +------------------
 crates/tauri-cli/src/helpers/fs.rs     | 18 +++++++++++++++++
 crates/tauri-cli/src/interface/rust.rs | 27 +++++++++++++++++++-------
 3 files changed, 39 insertions(+), 26 deletions(-)

diff --git a/crates/tauri-cli/src/cef/macos_dev.rs b/crates/tauri-cli/src/cef/macos_dev.rs
index 7bde5d92f..5b2fd4c63 100644
--- a/crates/tauri-cli/src/cef/macos_dev.rs
+++ b/crates/tauri-cli/src/cef/macos_dev.rs
@@ -4,7 +4,7 @@ use crate::interface::{
   rust::{DevChild, RustupTarget},
   AppSettings, ExitReason, Options,
 };
-use crate::{error::ErrorExt, CommandExt};
+use crate::{error::ErrorExt, CommandExt, helpers::fs::copy_dir_all};
 
 use serde::Serialize;
 use shared_child::SharedChild;
@@ -93,24 +93,6 @@ fn write_info_plist(
     .map_err(|e| crate::Error::GenericError(e.to_string()))
 }
 
-fn copy_dir_all(src: &Path, dst: &Path) -> crate::Result<()> {
-  std::fs::create_dir_all(dst).fs_context("failed to create directory", dst.to_path_buf())?;
-  for entry in std::fs::read_dir(src).fs_context("failed to read directory", src.to_path_buf())? {
-    let entry = entry.map_err(|e| crate::Error::GenericError(e.to_string()))?;
-    let dst_path = dst.join(entry.file_name());
-    let file_type = entry
-      .file_type()
-      .map_err(|e| crate::Error::GenericError(e.to_string()))?;
-    if file_type.is_dir() {
-      copy_dir_all(&entry.path(), &dst_path)?;
-    } else {
-      std::fs::copy(entry.path(), &dst_path)
-        .map_err(|e| crate::Error::GenericError(e.to_string()))?;
-    }
-  }
-  Ok(())
-}
-
 pub fn run_dev_cef_macos<A: AppSettings, F: Fn(Option<i32>, ExitReason) + Send + Sync + 'static>(
   app_settings: &A,
   options: Options,
diff --git a/crates/tauri-cli/src/helpers/fs.rs b/crates/tauri-cli/src/helpers/fs.rs
index dbd5fabe1..2d748e018 100644
--- a/crates/tauri-cli/src/helpers/fs.rs
+++ b/crates/tauri-cli/src/helpers/fs.rs
@@ -53,3 +53,21 @@ pub fn find_in_directory(path: &Path, glob_pattern: &str) -> crate::Result<PathB
     glob_pattern
   )
 }
+
+pub fn copy_dir_all(src: &Path, dst: &Path) -> crate::Result<()> {
+  std::fs::create_dir_all(dst).fs_context("failed to create directory", dst.to_path_buf())?;
+  for entry in std::fs::read_dir(src).fs_context("failed to read directory", src.to_path_buf())? {
+    let entry = entry.map_err(|e| crate::Error::GenericError(e.to_string()))?;
+    let dst_path = dst.join(entry.file_name());
+    let file_type = entry
+      .file_type()
+      .map_err(|e| crate::Error::GenericError(e.to_string()))?;
+    if file_type.is_dir() {
+      copy_dir_all(&entry.path(), &dst_path)?;
+    } else {
+      std::fs::copy(entry.path(), &dst_path)
+        .map_err(|e| crate::Error::GenericError(e.to_string()))?;
+    }
+  }
+  Ok(())
+}
diff --git a/crates/tauri-cli/src/interface/rust.rs b/crates/tauri-cli/src/interface/rust.rs
index 3cf702df8..91b4bead9 100644
--- a/crates/tauri-cli/src/interface/rust.rs
+++ b/crates/tauri-cli/src/interface/rust.rs
@@ -29,12 +29,10 @@ use tauri_utils::config::{parse::is_configuration_file, DeepLinkProtocol, Runner
 
 use super::{AppSettings, DevProcess, ExitReason, Interface};
 use crate::{
-  error::{Context, Error, ErrorExt},
-  helpers::{
+  ConfigValue, error::{Context, Error, ErrorExt}, helpers::{
     app_paths::{frontend_dir, tauri_dir},
-    config::{nsis_settings, reload as reload_config, wix_settings, BundleResources, Config},
-  },
-  ConfigValue,
+    config::{BundleResources, Config, nsis_settings, reload as reload_config, wix_settings}, fs::copy_dir_all,
+  }
 };
 use tauri_utils::{display_path, platform::Target as TargetPlatform};
 
@@ -192,6 +190,7 @@ impl Interface for Rust {
   fn build(&mut self, options: Options) -> crate::Result<PathBuf> {
     ensure_cef_directory_if_needed(
       &self.app_settings,
+      &options,
       self.config_features.clone(),
       options.target.as_deref(),
       &options.features,
@@ -212,6 +211,7 @@ impl Interface for Rust {
   ) -> crate::Result<()> {
     ensure_cef_directory_if_needed(
       &self.app_settings,
+      &options,
       self.config_features.clone(),
       options.target.as_deref(),
       &options.features,
@@ -514,6 +514,7 @@ fn get_watch_folders(additional_watch_folders: &[PathBuf]) -> crate::Result<Vec<
 
 fn ensure_cef_directory_if_needed(
   app_settings: &RustAppSettings,
+  options: &Options,
   config_features: Vec<String>,
   target: Option<&str>,
   features: &Option<Vec<String>>,
@@ -533,8 +534,20 @@ fn ensure_cef_directory_if_needed(
       .build()
       .target()
   });
-  if let Err(e) = crate::cef::exporter::ensure_cef_directory(target_triple, &enabled_features) {
-    log::warn!(action = "CEF"; "Failed to ensure CEF directory: {}. Continuing anyway.", e);
+  match crate::cef::exporter::ensure_cef_directory(target_triple, &enabled_features) {
+    // cef not enabled
+    Ok(None) => {}
+    #[cfg(not(windows))]
+    Ok(Some(_cef_dir)) => {}
+    // on Windows we must copy the cef files next to the executable
+    #[cfg(windows)]
+    Ok(Some(cef_dir)) => {
+      let out_dir = app_settings.out_dir(options)?;
+      copy_dir_all(&cef_dir, &out_dir)?;
+    }
+    Err(e) => {
+      log::warn!(action = "CEF"; "Failed to ensure CEF directory: {}. Continuing anyway.", e);
+    }
   }
   Ok(())
 }