get started on downloading JREs

also refactor ensure file logic

1 files changed, 45 insertions, 0 deletions

diff --git a/src/launcher/jre/arch.rs b/src/launcher/jre/arch.rs
new file mode 100644
index 0000000..e984171
--- /dev/null
+++ b/src/launcher/jre/arch.rs
@@ -0,0 +1,45 @@
+use cfg_if::cfg_if;
+
+macro_rules! define_arch {
+    ($arch:expr) => {
+        pub const JRE_ARCH: &str = $arch;
+    }
+}
+
+cfg_if! {
+    if #[cfg(target_os = "windows")] {
+        cfg_if! {
+            if #[cfg(target_arch = "x86_64")] {
+                define_arch!("windows-x64");
+            } else if #[cfg(target_arch = "x86")] {
+                define_arch!("windows-x86");
+            } else if #[cfg(target_arch = "aarch64")] {
+                define_arch!("windows-arm64");
+            } else {
+                define_arch!("gamecore");
+            }
+        }
+    } else if #[cfg(target_os = "linux")] {
+        cfg_if! {
+            if #[cfg(target_arch = "x86_64")] {
+                define_arch!("linux");
+            } else if #[cfg(target_arch = "x86")] {
+                define_arch!("linux-i386");
+            } else {
+                define_arch!("gamecore");
+            }
+        }
+    } else if #[cfg(target_os = "macos")] {
+        cfg_if! {
+            if #[cfg(target_arch = "aarch64")] {
+                define_arch!("mac-os-arm64");
+            } else if #[cfg(target_arch = "x86_64")] {
+                define_arch!("mac-os");
+            } else {
+                define_arch!("gamecore");
+            }
+        }
+    } else {
+        define_arch!("gamecore");
+    }
+}