Add rust stub

src/Rust/Cargo.toml

@@ -15,6 +15,10 @@ path = "src/update.rs"
 name = "testapp"
 path = "src/testapp.rs"
 
+[[bin]]
+name = "stub"
+path = "src/stub.rs"
+
 [profile.release]
 opt-level = "z"          # optimize for size
 lto = true               # link-time optimization

src/Rust/src/stub.rs

@@ -0,0 +1,49 @@
+#![allow(dead_code)]
+
+mod util;
+
+#[macro_use]
+extern crate lazy_static;
+
+#[macro_use]
+extern crate log;
+
+use std::{
+    os::windows::process::CommandExt,
+    process::{Command as Process, ExitCode},
+};
+
+fn main() -> ExitCode {
+    let my_path = std::env::current_exe().unwrap();
+    let my_name = my_path.file_name().unwrap().to_string_lossy();
+
+    let mut log_path = my_path.clone();
+    log_path.pop();
+    log_path.push("Clowd.Squirrel.log");
+
+    let _ = util::setup_logging(Some(&log_path), false, true, true);
+
+    let mut update_exe = my_path.clone();
+    update_exe.pop();
+    update_exe.push("Update.exe");
+
+    if !update_exe.exists() {
+        error!("Update.exe not found at {:?}", update_exe);
+        return ExitCode::FAILURE;
+    }
+
+    let mut args: Vec<String> = std::env::args().skip(1).collect();
+    args.insert(0, "start".to_owned());
+    args.insert(1, my_name.to_string());
+    args.insert(2, "--".to_owned());
+
+    info!("Stub {} about to start Update.exe ({}) with args: {:?}", my_name, update_exe.to_string_lossy(), args);
+
+    const CREATE_NO_WINDOW: u32 = 0x08000000;
+    if let Err(e) = Process::new(update_exe).args(args).creation_flags(CREATE_NO_WINDOW).spawn() {
+        error!("Stub failed to start Update.exe: {}", e);
+        return ExitCode::FAILURE;
+    }
+
+    ExitCode::SUCCESS
+}