slim-rs v1: initrd build, qemu run, gitea actions

src/main.rs

@@ -43,9 +43,9 @@ fn main() -> Result<()> {
 }
 
 fn registry_dir(image: &str) -> PathBuf {
-    let base = xdg::BaseDirectories::with_prefix("slim-rs").unwrap();
-    base.place_data_file(format!("registry/{}/vmlinuz", image)).unwrap();
-    base.place_data_file(format!("registry/{}/initrd", image)).unwrap().parent().unwrap().to_path_buf()
+    let base = xdg::BaseDirectories::with_prefix("slim-rs");
+    let initrd_path = base.place_data_file(format!("registry/{}/initrd", image));
+    initrd_path.unwrap().parent().unwrap().to_path_buf()
 }
 
 fn build(image: &str) -> Result<()> {
@@ -64,7 +64,9 @@ fn build(image: &str) -> Result<()> {
     // Step 2: find vmlinuz
     let vmlinuz_src = mount_path.join("vmlinuz");
     if !vmlinuz_src.exists() {
-        anyhow::bail!("Image missing required /vmlinuz. Place kernel at /vmlinuz in Containerfile.");
+        anyhow::bail!(
+            "Image missing required /vmlinuz. Place kernel at /vmlinuz in Containerfile."
+        );
     }
 
     // Step 3: prepare registry dir
@@ -106,8 +108,12 @@ fn build(image: &str) -> Result<()> {
 
     // Gzip initrd
     let initrd_file = fs::File::open(&initrd_raw)?;
-    let mut initrd_writer = flate2::write::GzEncoder::new(File::create(&initrd_path)?, flate2::Compression::default());
-    std::io::copy(&mut std::io::BufReader::new(initrd_file), &mut initrd_writer)?;
+    let mut initrd_writer =
+        flate2::write::GzEncoder::new(File::create(&initrd_path)?, flate2::Compression::default());
+    std::io::copy(
+        &mut std::io::BufReader::new(initrd_file),
+        &mut initrd_writer,
+    )?;
     initrd_writer.finish()?;
     fs::remove_file(&initrd_raw)?;
     println!("Created initrd -> {}", initrd_path.display());
@@ -139,18 +145,27 @@ fn run(name: &str) -> Result<()> {
     );
     // Launch with a 5-second timeout for quick smoke verification
     let status = Command::new("timeout")
-        .args(["5", "qemu-system-x86_64",
-               "-m", "256",
-               "-nographic",
-               "-kernel", vmlinuz_path.to_str().unwrap(),
-               "-initrd", initrd_path.to_str().unwrap(),
-               "-append", "console=ttyS0"])
+        .args([
+            "5",
+            "qemu-system-x86_64",
+            "-m",
+            "256",
+            "-nographic",
+            "-kernel",
+            vmlinuz_path.to_str().unwrap(),
+            "-initrd",
+            initrd_path.to_str().unwrap(),
+            "-append",
+            "console=ttyS0",
+        ])
         .status()
         .context("Failed to launch qemu-system-x86_64")?;
     if status.success() {
         println!("QEMU exited cleanly (timeout or normal exit).");
     } else {
-        println!("QEMU exited with non-zero status (timeout/expected for initrd boot without init).");
+        println!(
+            "QEMU exited with non-zero status (timeout/expected for initrd boot without init)."
+        );
     }
     Ok(())
 }