add CMAKE_CACHE_DIR env

src/common.rs

@@ -22,6 +22,10 @@ pub struct XWinOptions {
     #[arg(long, env = "XWIN_CACHE_DIR", hide = true)]
     pub xwin_cache_dir: Option<PathBuf>,
 
+    /// cmake cache directory
+    #[arg(long, env = "CMAKE_CACHE_DIR", hide = true)]
+    pub cmake_cache_dir: Option<PathBuf>,
+
     /// The architectures to include in CRT/SDK
     #[arg(
         long,
@@ -60,6 +64,7 @@ impl Default for XWinOptions {
     fn default() -> Self {
         Self {
             xwin_cache_dir: None,
+            cmake_cache_dir: None,
             xwin_arch: vec![xwin::Arch::X86_64, xwin::Arch::Aarch64],
             xwin_variant: vec![xwin::Variant::Desktop],
             xwin_version: "16".to_string(),
@@ -396,16 +401,18 @@ impl XWinOptions {
     }
 
     fn setup_cmake_toolchain(&self, target: &str, xwin_cache_dir: &Path) -> Result<PathBuf> {
-        let cache_dir = dirs::cache_dir()
-            .unwrap_or_else(|| env::current_dir().expect("Failed to get current dir"))
-            .join(env!("CARGO_PKG_NAME"));
-        let cmake = cache_dir.join("cmake");
-        fs::create_dir_all(&cmake)?;
+        let cmake_cache_dir = self.cmake_cache_dir.clone().unwrap_or_else(|| {
+            dirs::cache_dir()
+                .unwrap_or_else(|| env::current_dir().expect("Failed to get current dir"))
+                .join(env!("CARGO_PKG_NAME"))
+                .join("cmake")
+        });
+        fs::create_dir_all(&cmake_cache_dir)?;
 
-        let override_file = cmake.join("override.cmake");
+        let override_file = cmake_cache_dir.join("override.cmake");
         fs::write(override_file, include_bytes!("override.cmake"))?;
 
-        let toolchain_file = cmake.join(format!("{}-toolchain.cmake", target));
+        let toolchain_file = cmake_cache_dir.join(format!("{}-toolchain.cmake", target));
         let target_arch = target
             .split_once('-')
             .map(|(x, _)| x)