From 9f3017742e41222b69f022fb61d33f07dfab4f80 Mon Sep 17 00:00:00 2001
From: daimond113 <72147841+daimond113@users.noreply.github.com>
Date: Mon, 11 Nov 2024 18:57:44 +0100
Subject: [PATCH] fix: correct cas finding algorithm

---
 CHANGELOG.md |  2 ++
 src/main.rs  | 22 ++++++++++++++++++++--
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7401031..19f4a10 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Use a different algorithm for finding a CAS directory to avoid issues with mounted drives by @daimond113
 - Remove default.project.json from Git pesde dependencies by @daimond113
 - Correctly (de)serialize workspace specifiers by @daimond113
+- Fix CAS finder algorithm issues with Windows by @daimond113
+- Fix CAS finder algorithm's AlreadyExists error by @daimond113
 
 ### Changed
 - Switched to fs-err for better errors with file system operations by @daimond113
diff --git a/src/main.rs b/src/main.rs
index 8687bfe..eb7b137 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -36,9 +36,27 @@ struct Cli {
 async fn get_linkable_dir(path: &Path) -> PathBuf {
     let mut curr_path = PathBuf::new();
     let file_to_try = NamedTempFile::new_in(path).expect("failed to create temporary file");
-    let temp_file_name = file_to_try.path().file_name().unwrap();
 
-    for component in path.components() {
+    let temp_path = tempfile::Builder::new()
+        .make(|_| Ok(()))
+        .expect("failed to create temporary file")
+        .into_temp_path();
+    let temp_file_name = temp_path.file_name().expect("failed to get file name");
+
+    // C: and \ are different components on Windows
+    #[cfg(windows)]
+    let components = path.components().map(|c| {
+        let mut path = c.as_os_str().to_os_string();
+        if let std::path::Component::Prefix(_) = c {
+            path.push(std::path::MAIN_SEPARATOR_STR);
+        }
+
+        path
+    });
+    #[cfg(not(windows))]
+    let components = path.components().map(|c| c.as_os_str().to_os_string());
+
+    for component in components {
         curr_path.push(component);
 
         let try_path = curr_path.join(temp_file_name);