fix: conditional compilation for windows

Author: rrrodzilla

Cargo.lock

@@ -21,6 +21,14 @@ tiktoken-rs = "0.6.0"
 # Configure cargo crate to vendor openssl to avoid system mismatches
 cargo = { version = "0.86.0", default-features = false, features = ["vendored-openssl"] }
 tempfile = "3.19.1"
-xdg = { version = "2.5.2", features = ["serde"] }
 anyhow = "1.0.97"
 schemars = "0.8.22"
+
+
+# --- Platform Specific Dependencies ---
+
+[target.'cfg(not(target_os = "windows"))'.dependencies]
+xdg = { version = "2.5.2", features = ["serde"] }
+
+[target.'cfg(target_os = "windows")'.dependencies]
+dirs = "6.0.0"

Cargo.toml

@@ -3,6 +3,8 @@
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 
 
+⭐ **Like this project? Please [star the repository](https://github.com/Govcraft/rust-docs-mcp-server) on GitHub to show your support and stay updated!** ⭐
+
 ## Motivation
 
 Modern AI-powered coding assistants (like Cursor, Cline, Roo Code, etc.) excel at understanding code structure and syntax but often struggle with the specifics of rapidly evolving libraries and frameworks, especially in ecosystems like Rust where crates are updated frequently. Their training data cutoff means they may lack knowledge of the latest APIs, leading to incorrect or outdated code suggestions.

README.md

@@ -27,6 +27,7 @@ use std::{
     io::BufReader,
     path::PathBuf,
 };
+#[cfg(not(target_os = "windows"))]
 use xdg::BaseDirectories;
 
 // No changes needed below this line until server initialization/running
@@ -69,19 +70,35 @@ async fn main() -> Result<(), ServerError> {
     eprintln!("Target Spec: {}, Parsed Name: {}, Version Req: {}", specid_str, crate_name, crate_version_req); // Use eprintln
 
     // --- Determine Paths ---
-    let xdg_dirs = BaseDirectories::with_prefix("rustdocs-mcp-server")
-        .map_err(|e| ServerError::Xdg(format!("Failed to get XDG directories: {}", e)))?;
 
-    // Sanitize the version requirement string for use in the path
+    // Sanitize the version requirement string for use in the path (needed for both paths)
     let sanitized_version_req = crate_version_req.replace(|c: char| !c.is_alphanumeric() && c != '.' && c != '-', "_");
 
-    // Construct the path for embeddings file, including the sanitized version requirement
+    // Construct the relative path component (needed for both paths)
     let embeddings_relative_path = PathBuf::from(&crate_name)
         .join(&sanitized_version_req) // Add sanitized version req as a directory
         .join("embeddings.bin");
-    let embeddings_file_path = xdg_dirs
-        .place_data_file(embeddings_relative_path)
-        .map_err(ServerError::Io)?;
+
+    #[cfg(not(target_os = "windows"))]
+    let embeddings_file_path = {
+        let xdg_dirs = BaseDirectories::with_prefix("rustdocs-mcp-server")
+            .map_err(|e| ServerError::Xdg(format!("Failed to get XDG directories: {}", e)))?;
+        xdg_dirs
+            .place_data_file(embeddings_relative_path)
+            .map_err(ServerError::Io)?
+    };
+
+    #[cfg(target_os = "windows")]
+    let embeddings_file_path = {
+        let cache_dir = dirs::cache_dir().ok_or_else(|| {
+            ServerError::Config("Could not determine cache directory on Windows".to_string())
+        })?;
+        let app_cache_dir = cache_dir.join("rustdocs-mcp-server");
+        // Ensure the base app cache directory exists
+        fs::create_dir_all(&app_cache_dir).map_err(ServerError::Io)?;
+        app_cache_dir.join(embeddings_relative_path)
+    };
+
 
     eprintln!("Cache file path: {:?}", embeddings_file_path); // Use eprintln