Update the ledger directory in dev mode

README.md

@@ -128,14 +128,14 @@ USAGE:
     snarkos [FLAGS] [OPTIONS] [SUBCOMMAND]
 
 FLAGS:
-        --dev        If the flag is set, the node will start in development mode
         --display    If the flag is set, the node will render a read-only display
     -h, --help       Prints help information
         --norpc      If the flag is set, the node will not initialize the RPC server
     -V, --version    Prints version information
 
 OPTIONS:
         --connect <connect>          Specify the IP address and port of a peer to connect to
+        --dev <dev>                  Enables development mode, specify a unique ID for the local node
         --miner <miner>              Specify this as a mining node, with the given miner address
         --network <network>          Specify the network of this node [default: 2]
         --node <node>                Specify the IP address and port for the node server [default: 0.0.0.0:4132]
@@ -155,12 +155,12 @@ SUBCOMMANDS:
 
 In one terminal, start the first node by running:
 ```
-cargo run --release -- --dev --node 0.0.0.0:4135 --rpc 0.0.0.0:3035 --miner aleo1d5hg2z3ma00382pngntdp68e74zv54jdxy249qhaujhks9c72yrs33ddah
+cargo run --release -- --dev 1 --node 0.0.0.0:4135 --rpc 0.0.0.0:3035 --miner aleo1d5hg2z3ma00382pngntdp68e74zv54jdxy249qhaujhks9c72yrs33ddah
 ```
 
 After the first node starts, in a second terminal, run:
 ```
-cargo run --release --dev
+cargo run --release --dev 2
 ```
 
 We welcome all contributions to snarkOS. Please refer to the [license](#7-license) for the terms of contributions.

src/node.rs

@@ -62,9 +62,9 @@ pub struct Node {
     /// Specify the verbosity of the node [options: 0, 1, 2, 3]
     #[structopt(default_value = "2", long = "verbosity")]
     pub verbosity: u8,
-    /// If the flag is set, the node will start in development mode.
+    /// Enables development mode, specify a unique ID for the local node.
     #[structopt(long)]
-    pub dev: bool,
+    pub dev: Option<u16>,
     /// If the flag is set, the node will render a read-only display.
     #[structopt(long)]
     pub display: bool,
@@ -242,9 +242,9 @@ pub struct Clean {
     /// Specify the network of the ledger to remove from storage.
     #[structopt(default_value = "2", long = "network")]
     pub network: u16,
-    /// If the flag is set, only the development ledger will be removed from storage.
+    /// Enables development mode, specify the unique ID of the local node to clean.
     #[structopt(long)]
-    pub dev: bool,
+    pub dev: Option<u16>,
 }
 
 impl Clean {
@@ -254,9 +254,9 @@ impl Clean {
     }
 
     /// Removes the specified ledger from storage.
-    fn remove_ledger(network: u16, is_dev: bool) -> Result<String> {
+    fn remove_ledger(network: u16, dev: Option<u16>) -> Result<String> {
         // Construct the path to the ledger in storage.
-        let path = aleo_std::aleo_ledger_dir(network, is_dev);
+        let path = aleo_std::aleo_ledger_dir(network, dev);
         // Check if the path to the ledger exists in storage.
         if path.exists() {
             // Remove the ledger files from storage.

testing/src/client_node.rs

@@ -69,7 +69,11 @@ impl ClientNode {
 // Remove the storage artifacts after each test.
 impl Drop for ClientNode {
     fn drop(&mut self) {
-        self.server.shut_down();
+        // TODO (howardwu): @ljedrz to implement a wrapping scope for Display within Node/Server.
+        #[allow(unused_must_use)]
+        {
+            self.server.shut_down();
+        }
 
         let db_path = format!("/tmp/snarkos-test-ledger-{}", self.local_addr().port());
         assert!(