add command show-ownership

Author: ma2bd

linera-client/src/client_context.rs

@@ -445,6 +445,13 @@ impl<Env: Environment, W: Persist<Target = Wallet>> ClientContext<Env, W> {
         }
     }
 
+    pub async fn ownership(&mut self, chain_id: Option<ChainId>) -> Result<ChainOwnership, Error> {
+        let chain_id = chain_id.unwrap_or_else(|| self.default_chain());
+        let client = self.make_chain_client(chain_id);
+        let info = client.chain_info().await?;
+        Ok(info.manager.ownership)
+    }
+
     pub async fn change_ownership(
         &mut self,
         chain_id: Option<ChainId>,

linera-service/src/cli/command.rs

@@ -227,6 +227,13 @@ pub enum ClientCommand {
         balance: Amount,
     },
 
+    /// Display who owns the chain, and how the owners work together proposing blocks.
+    ShowOwnership {
+        /// The ID of the chain whose owners will be changed.
+        #[clap(long)]
+        chain_id: Option<ChainId>,
+    },
+
     /// Change who owns the chain, and how the owners work together proposing blocks.
     ///
     /// Specify the complete set of new owners, by public key. Existing owners that are
@@ -957,6 +964,7 @@ impl ClientCommand {
             ClientCommand::Transfer { .. }
             | ClientCommand::OpenChain { .. }
             | ClientCommand::OpenMultiOwnerChain { .. }
+            | ClientCommand::ShowOwnership { .. }
             | ClientCommand::ChangeOwnership { .. }
             | ClientCommand::SetPreferredOwner { .. }
             | ClientCommand::ChangeApplicationPermissions { .. }

linera-service/src/cli/main.rs

@@ -240,6 +240,18 @@ impl Runnable for Job {
                 println!("{}", id);
             }
 
+            ShowOwnership { chain_id } => {
+                let mut context = ClientContext::new(
+                    storage,
+                    options.context_options.clone(),
+                    wallet,
+                    signer.into_value(),
+                );
+                let ownership = context.ownership(chain_id).await?;
+                let json = serde_json::to_string_pretty(&ownership)?;
+                println!("{}", json);
+            }
+
             ChangeOwnership {
                 chain_id,
                 ownership_config,