From fb802984f5516e632fb47ffd7eed66697e25e2d8 Mon Sep 17 00:00:00 2001
From: leofvo <leofvo@pm.me>
Date: Mon, 2 May 2022 16:25:22 +0200
Subject: [PATCH] implemented kernel build feature

- add_kernel: add kernel binary to quardle

Signed-off-by: leofvo <leofvo@pm.me>
---
 src/quardle/mod.rs | 51 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/src/quardle/mod.rs b/src/quardle/mod.rs
index c7f8022..17a271d 100644
--- a/src/quardle/mod.rs
+++ b/src/quardle/mod.rs
@@ -46,6 +46,7 @@ impl Quardle {
 
         self
             .setup()
+            .add_kernel()
             .add_config_file()
             .make_archive()?;
         
@@ -89,6 +90,56 @@ impl Quardle {
                 .expect("failed to setup quark");
         }
 
+        // Install a default kernel configuration file
+        if !std::path::Path::new(&format!("{}linux-config-x86_64", QUARK_CONFIG_DIR)).exists() {
+            println!("Kernel config file not found, installing it !");
+            Command::new("curl")
+                .arg("https://raw.githubusercontent.com/virt-do/lab/main/do-vmm/kernel/linux-config-x86_64")
+                .arg("-O") 
+                .current_dir(format!("{}", QUARK_CONFIG_DIR))
+                .output()
+                .expect("failed to fetch kernel config file");
+        }
+
+        // Install a script to build kernel
+        if !std::path::Path::new(&format!("{}mkkernel.sh", QUARK_CONFIG_DIR)).exists() {
+            println!("Kernel build script not found, installing it !");
+            Command::new("curl")
+                .arg("https://raw.githubusercontent.com/virt-do/lab/main/do-vmm/kernel/mkkernel.sh")
+                .arg("-O") 
+                .current_dir(format!("{}", QUARK_CONFIG_DIR))
+                .output()
+                .expect("failed to fetch kernel build script");
+
+            Command::new("chmod")
+                .arg("+x")
+                .arg(format!("{}mkkernel.sh", QUARK_CONFIG_DIR))
+                .current_dir(format!("{}", QUARK_CONFIG_DIR))
+                .output()
+                .expect("failed to make kernel build script executable");
+        }
+
+        // Building kernel binary
+        if !std::path::Path::new(&format!("{}linux-cloud-hypervisor", QUARK_CONFIG_DIR)).exists() {
+            println!("Kernel not builded, building it !");
+            Command::new(format!("{}mkkernel.sh", QUARK_CONFIG_DIR))
+                .current_dir(format!("{}", QUARK_CONFIG_DIR))
+                .output()   
+                .expect("failed to build kernel");
+        }
+
+        self
+    }
+
+    /// Append kernel configuration
+    /// Fetch automated script if isn't already installed, and use some bash script to build it
+    fn add_kernel(&self) -> &Quardle {
+        println!("Installing kernel binary !");
+        Command::new("cp")
+            .arg(format!("{}linux-cloud-hypervisor/arch/x86/boot/compressed/vmlinux.bin", QUARK_CONFIG_DIR))
+            .arg(format!("{}/", self.clone().get_work_dir()))
+            .spawn()
+            .expect("failed to copy kernel");
         self
     }