feat: Add basic Proton management (#383)

Adds logic to install, remove, and check existing install of NorthstarProton.

2 files changed, 107 insertions, 0 deletions

diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index a584eea9..a295f322 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -144,6 +144,9 @@ fn main() {
             mod_management::delete_northstar_mod,
             util::get_server_player_count,
             mod_management::delete_thunderstore_mod,
+            install_northstar_proton_wrapper,
+            uninstall_northstar_proton_wrapper,
+            get_local_northstar_proton_wrapper_version,
             open_repair_window,
             thunderstore::query_thunderstore_packages_api,
             github::get_list_of_tags,
@@ -525,3 +528,32 @@ pub fn check_is_valid_game_path(game_install_path: &str) -> Result<(), String> {
 fn get_host_os() -> String {
     env::consts::OS.to_string()
 }
+
+/// On Linux attempts to install NorthstarProton
+/// On Windows simply returns an error message
+#[tauri::command]
+async fn install_northstar_proton_wrapper() -> Result<(), String> {
+    #[cfg(target_os = "linux")]
+    return linux::install_ns_proton().map_err(|err| err.to_string());
+
+    #[cfg(target_os = "windows")]
+    Err("Not supported on Windows".to_string())
+}
+
+#[tauri::command]
+async fn uninstall_northstar_proton_wrapper() -> Result<(), String> {
+    #[cfg(target_os = "linux")]
+    return linux::uninstall_ns_proton();
+
+    #[cfg(target_os = "windows")]
+    Err("Not supported on Windows".to_string())
+}
+
+#[tauri::command]
+async fn get_local_northstar_proton_wrapper_version() -> Result<String, String> {
+    #[cfg(target_os = "linux")]
+    return linux::get_local_ns_proton_version();
+
+    #[cfg(target_os = "windows")]
+    Err("Not supported on Windows".to_string())
+}
diff --git a/src-tauri/src/platform_specific/linux.rs b/src-tauri/src/platform_specific/linux.rs
index 4b9964e9..674f384b 100644
--- a/src-tauri/src/platform_specific/linux.rs
+++ b/src-tauri/src/platform_specific/linux.rs
@@ -3,6 +3,81 @@
 use regex::Regex;
 use std::process::Command;
 
+fn get_proton_dir() -> Option<String> {
+    let steam_dir = steamlocate::SteamDir::locate()?;
+    let compat_dir = format!("{}/compatibilitytools.d/", steam_dir.path.display());
+
+    Some(compat_dir)
+}
+
+/// Downloads and installs NS proton
+/// Assumes Steam install
+pub fn install_ns_proton() -> Result<(), thermite::prelude::ThermiteError> {
+    // Get latest NorthstarProton release
+    let latest = thermite::core::latest_release()?;
+
+    let temp_dir = std::env::temp_dir();
+    let path = format!("{}/nsproton-{}.tar.gz", temp_dir.display(), latest);
+    let archive = std::fs::File::create(path.clone())?;
+
+    // Download the latest Proton release
+    log::info!("Downloading NorthstarProton to {}", path);
+    thermite::core::download_ns_proton(latest, archive)?;
+    log::info!("Finished Download");
+
+    let compat_dir = get_proton_dir().unwrap();
+    std::fs::create_dir_all(compat_dir.clone())?;
+
+    let finished = std::fs::File::open(path.clone())?;
+
+    // Extract to Proton dir
+    log::info!("Installing NorthstarProton to {}", compat_dir);
+    thermite::core::install_ns_proton(&finished, compat_dir)?;
+    log::info!("Finished Installation");
+    drop(finished);
+
+    std::fs::remove_file(path)?;
+
+    Ok(())
+}
+
+/// Remove NS Proton
+pub fn uninstall_ns_proton() -> Result<(), String> {
+    let compat_dir = get_proton_dir().unwrap();
+    let pattern = format!("{}/NorthstarProton-*", compat_dir);
+    for e in glob::glob(&pattern).expect("Failed to read glob pattern") {
+        std::fs::remove_dir_all(e.unwrap()).unwrap();
+    }
+
+    Ok(())
+}
+
+/// Get the latest installed NS Proton version
+pub fn get_local_ns_proton_version() -> Result<String, String> {
+    let compat_dir = get_proton_dir().unwrap();
+    let ns_prefix = "NorthstarProton-";
+    let pattern = format!("{}/{}*/version", compat_dir, ns_prefix);
+
+    let mut version: String = "".to_string();
+
+    for e in glob::glob(&pattern).expect("Failed to read glob pattern") {
+        let version_content = std::fs::read_to_string(e.unwrap()).unwrap();
+        let version_string = version_content.split(' ').nth(1).unwrap();
+
+        if version_string.starts_with(ns_prefix) {
+            version = version_string[ns_prefix.len()..version_string.len() - 1]
+                .to_string()
+                .clone();
+        }
+    }
+
+    if version.is_empty() {
+        return Err("Northstar Proton is not installed".to_string());
+    }
+
+    Ok(version)
+}
+
 pub fn check_glibc_v() -> f32 {
     let out = Command::new("/bin/ldd")
         .arg("--version")