feat: basic functionality

src/qemu.rs

@@ -0,0 +1,37 @@
+use crate::veprintln;
+use anyhow::{anyhow, Result};
+use std::path::Path;
+
+/// Check if binfmt_misc is registered for the target architecture
+pub fn check_binfmt(arch: &str) -> Result<()> {
+    let qemu_arch = map_arch_to_qemu(arch);
+
+    let binfmt_path = format!("/proc/sys/fs/binfmt_misc/qemu-{}", qemu_arch);
+
+    if !Path::new(&binfmt_path).exists() {
+        return Err(anyhow!(
+            "binfmt_misc not registered for {}\n\n\
+            Install QEMU user emulation:\n\
+              Ubuntu/Debian: sudo apt install qemu-user-static\n\
+              Arch: sudo pacman -S qemu-user-static-binfmt\n\
+              Alpine: sudo apk add qemu-user-static",
+            arch
+        ));
+    }
+
+    veprintln!("QEMU binfmt_misc registered for {}", arch);
+    Ok(())
+}
+
+/// Map ecr architecture names to QEMU binary names
+fn map_arch_to_qemu(arch: &str) -> &str {
+    match arch {
+        "amd64" | "x86_64" => "x86_64",
+        "arm64" | "aarch64" => "aarch64",
+        "armhf" | "armv7" => "arm",
+        "riscv64" => "riscv64",
+        "ppc64el" | "ppc64le" => "ppc64le",
+        "s390x" => "s390x",
+        _ => arch,
+    }
+}