windows: Hide background helpers behind CREATE_NO_WINDOW (#41737)

Close https://github.com/zed-industries/zed/issues/41538

Release Notes:

- Fixed some processes on windows not spawning with CREATE_NO_WINDOW

---------

Signed-off-by: Xiaobo Liu <cppcoffee@gmail.com>

Cargo.lock

@@ -1339,6 +1339,7 @@ dependencies = [
  "settings",
  "smol",
  "tempfile",
+ "util",
  "which 6.0.3",
  "workspace",
 ]

crates/auto_update/Cargo.toml

@@ -26,6 +26,7 @@ serde_json.workspace = true
 settings.workspace = true
 smol.workspace = true
 tempfile.workspace = true
+util.workspace = true
 workspace.workspace = true
 
 [target.'cfg(not(target_os = "windows"))'.dependencies]

crates/auto_update/src/auto_update.rs

@@ -962,7 +962,7 @@ pub async fn finalize_auto_update_on_quit() {
             .parent()
             .map(|p| p.join("tools").join("auto_update_helper.exe"))
     {
-        let mut command = smol::process::Command::new(helper);
+        let mut command = util::command::new_smol_command(helper);
         command.arg("--launch");
         command.arg("false");
         if let Ok(mut cmd) = command.spawn() {

crates/fs/src/fs.rs

@@ -377,7 +377,7 @@ impl Fs for RealFs {
 
         #[cfg(windows)]
         if smol::fs::metadata(&target).await?.is_dir() {
-            let status = smol::process::Command::new("cmd")
+            let status = new_smol_command("cmd")
                 .args(["/C", "mklink", "/J"])
                 .args([path, target.as_path()])
                 .status()