Clone only one specific commit on libafl_qemu build.rs

libafl_qemu/build.rs

@@ -100,7 +100,36 @@ fn main() {
             "cargo:warning=Qemu not found, cloning with git ({})...",
             QEMU_REVISION
         );
+        fs::create_dir_all(&qemu_path).unwrap();
         Command::new("git")
+            .current_dir(&qemu_path)
+            .arg("init")
+            .status()
+            .unwrap();
+        Command::new("git")
+            .current_dir(&qemu_path)
+            .arg("remote")
+            .arg("add")
+            .arg("origin")
+            .arg(QEMU_URL)
+            .status()
+            .unwrap();
+        Command::new("git")
+            .current_dir(&qemu_path)
+            .arg("fetch")
+            .arg("--depth")
+            .arg("1")
+            .arg("origin")
+            .arg(QEMU_REVISION)
+            .status()
+            .unwrap();
+        Command::new("git")
+            .current_dir(&qemu_path)
+            .arg("checkout")
+            .arg("FETCH_HEAD")
+            .status()
+            .unwrap();
+        /*Command::new("git")
             .current_dir(&out_dir_path)
             .arg("clone")
             .arg(QEMU_URL)
@@ -111,7 +140,7 @@ fn main() {
             .arg("checkout")
             .arg(QEMU_REVISION)
             .status()
-            .unwrap();
+            .unwrap();*/
         fs::write(&qemu_rev, QEMU_REVISION).unwrap();
     }