feature: Add list only mode to print out desired cpu type to stdout

.changelogs/1.2.0/16-add-list-only-mode.yml

@@ -0,0 +1,2 @@
+added:
+  - Add list only mode to print out desired cpu type to stdout (@gyptazy). [#16]

.changelogs/1.2.0/release_meta.yaml

@@ -0,0 +1 @@
+date: 2026-01-06

ProxCLMC/src/main.rs

@@ -38,6 +38,9 @@ struct Cli {
     #[arg(short, long = "ssh-file", default_value = "/root/.ssh/id_rsa")]
     ssh_file: PathBuf,
 
+    #[arg(long)]
+    list_only: bool,
+
     #[arg(long)]
     version: bool,
 
@@ -251,6 +254,13 @@ fn main() -> io::Result<()> {
         enrich_node_cpu_ssh(node, "root", &args.ssh_file);
     }
 
+    if args.list_only {
+        if let Some(cluster_cpu) = cluster_min_cpu_type(&nodes) {
+            println!("{}", cluster_cpu.as_str());
+        }
+        return Ok(());
+    }
+
     println!("Detected nodes:");
     for n in &nodes {
         println!("{} | {} | {}", n.name, n.ring0_addr, n.cpu_type);

README.md

@@ -86,12 +86,13 @@ proxclmc
 ### Options
 The following cli options are available:
 
-| Short | Long        | Argument     | Default                 | Description        |
-|------:|-------------|--------------|--------------------------|--------------------|
-| `-s`  | `--ssh-file`| `<SSH_FILE>` | `/root/.ssh/id_rsa`      | SSH private key to use |
-|       | `--version` |              |                          | Print version information |
-| `-v`  | `--verbose` |              |                          | Enable verbose output |
-| `-h`  | `--help`    |              |                          | Print help |
+| Short | Long          | Argument     | Default                 | Description        |
+|------:|---------------|--------------|--------------------------|--------------------|
+| `-s`  | `--ssh-file`. | `<SSH_FILE>` | `/root/.ssh/id_rsa`      | SSH private key to use |
+|       | `--version`   |              |                          | Print version information |
+| `-l`  | `--list-only` |              |                          | Returns only the desired CPU type on stdout |
+| `-v`  | `--verbose`   |              |                          | Enable verbose output |
+| `-h`  | `--help`      |              |                          | Print help |
 
 ## Building from Source
 Building ProxCLMC is easy and can be done by installing the following requirements for Rust/Cargo: