fix bootstrapper not being able to write errors when log dir doesn't exist

CHANGELOG.md

@@ -16,6 +16,9 @@
 
   If you relied on this behavior, you'll need to append `/autorun` to your launch options going forward.
 
+### Bug fixes
+- Prevent bootstrapper from not logging errors if log directory didn't already exist
+
 ## [0.9.0] - 2023-09-12
 
 ### New Features

src/bootstrapper-rs/main.rs

@@ -1,12 +1,12 @@
 #[cfg(not(target_os = "windows"))]
 compile_error!("Can only be built on Windows");
 
-use std::env;
 use std::ffi::OsStr;
 use std::fs::OpenOptions;
 use std::io::Write;
 use std::os::windows::ffi::OsStrExt;
 use std::path::PathBuf;
+use std::{env, fs};
 use windows::core::{w, PCWSTR};
 use windows::Win32::Foundation::GetLastError;
 use windows::Win32::UI::Shell::{
@@ -50,12 +50,18 @@ fn write_error(msg: &str) -> Result<(), Box<dyn std::error::Error>> {
     ]
     .iter()
     .collect();
+
+    let write = fs::create_dir_all(&file_path.parent().unwrap()).and_then(|()| {
         let mut file = OpenOptions::new()
             .append(true)
             .create(true)
             .open(&file_path)?;
 
-    if let Err(e) = writeln!(&mut file, "Bootstrapper Error MinEdLauncher.exe: {}", msg) {
+        eprintln!("Bootstrapper Error MinEdLauncher.exe: {}", msg);
+        writeln!(&mut file, "Bootstrapper Error MinEdLauncher.exe: {}", msg)
+    });
+
+    if let Err(e) = write {
         eprintln!("Couldn't write to {}: {}", file_path.display(), e);
     }