Fix symlinks better

src/ctx.rs

@@ -180,7 +180,7 @@ impl Ctx {
         let crt_ft = parking_lot::Mutex::new(None);
         let atl_ft = parking_lot::Mutex::new(None);
 
-        let splat_config = match &ops {
+        let mut splat_config = match &ops {
             crate::Ops::Splat(config) => {
                 let splat_roots = crate::splat::prep_splat(
                     self.clone(),
@@ -217,10 +217,11 @@ impl Ctx {
 
         // Detect if the output root directory is case sensitive or not,
         // if it's not, disable symlinks as they won't work
-        let enable_symlinks = if let Some(root) = splat_config
-            .as_ref()
-            .and_then(|(sr, c)| c.enable_symlinks.then_some(&sr.root))
-        {
+        let enable_symlinks = if let Some((root, sc_enable_symlinks)) =
+            splat_config.as_mut().and_then(|(sr, c)| {
+                c.enable_symlinks
+                    .then_some((&sr.root, &mut c.enable_symlinks))
+            }) {
             let test_path = root.join("BIG.xwin");
             std::fs::write(&test_path, "").with_context(|| {
                 format!("failed to write case-sensitivity test file {test_path}")
@@ -235,6 +236,7 @@ impl Ctx {
 
             // Will be ugly but won't harm anything if file is left
             let _ = std::fs::remove_file(test_path);
+            *sc_enable_symlinks = enable_symlinks;
             enable_symlinks
         } else {
             false