release: blackwall v1

xtask/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "xtask"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+# No external deps — uses std::process::Command only

xtask/src/main.rs

@@ -0,0 +1,46 @@
+use std::process::Command;
+
+fn main() {
+    let args: Vec<String> = std::env::args().collect();
+
+    match args.get(1).map(|s| s.as_str()) {
+        Some("build-ebpf") => build_ebpf(),
+        Some(cmd) => {
+            eprintln!("Unknown command: {cmd}");
+            std::process::exit(1);
+        }
+        None => {
+            eprintln!("Usage: cargo xtask <command>");
+            eprintln!("Commands:");
+            eprintln!("  build-ebpf    Build eBPF programs");
+            std::process::exit(1);
+        }
+    }
+}
+
+fn build_ebpf() {
+    let manifest_dir = std::env::var("CARGO_MANIFEST_DIR")
+        .expect("CARGO_MANIFEST_DIR not set");
+    let workspace_root = std::path::Path::new(&manifest_dir)
+        .parent()
+        .expect("cannot find workspace root");
+    let ebpf_dir = workspace_root.join("blackwall-ebpf");
+
+    let status = Command::new("cargo")
+        .current_dir(&ebpf_dir)
+        .args([
+            "+nightly",
+            "build",
+            "--release",
+            "--target",
+            "bpfel-unknown-none",
+            "-Z",
+            "build-std=core",
+        ])
+        .status()
+        .expect("failed to execute cargo build for eBPF");
+
+    if !status.success() {
+        std::process::exit(status.code().unwrap_or(1));
+    }
+}