feat: check that VM will be getting networks

Sponsored-by: author

1 files changed, 7 insertions, 0 deletions

diff --git a/src/install.rs b/src/install.rs
index 149c917..8028687 100644
--- a/src/install.rs
+++ b/src/install.rs
@@ -22,6 +22,10 @@ pub enum VirtInstallError {
     #[error("couldn't run virt-install")]
     Run(#[source] std::io::Error),
 
+    /// No networks defined.
+    #[error("no networks defined for {0}")]
+    NoNetworks(String),
+
     /// Error parsing a string as UTF8.
     #[error(transparent)]
     StringError(#[from] std::string::FromUtf8Error),
@@ -116,6 +120,9 @@ pub fn virt_install(args: &VirtInstallArgs, iso: &Path) -> Result<PathBuf, VirtI
             .collect()
     };
     debug!("virt-install networks: {:?}", networks);
+    if networks.is_empty() {
+        return Err(VirtInstallError::NoNetworks(args.name.clone()));
+    }
 
     let r = Command::new("virt-install")
         .arg("--name")