Added settings editing, set_motd command

common/src/cmd.rs

@@ -48,6 +48,7 @@ pub enum ChatCommand {
     Players,
     RemoveLights,
     SetLevel,
+    SetMotd,
     Spawn,
     Sudo,
     Tell,
@@ -80,6 +81,7 @@ pub static CHAT_COMMANDS: &[ChatCommand] = &[
     ChatCommand::Players,
     ChatCommand::RemoveLights,
     ChatCommand::SetLevel,
+    ChatCommand::SetMotd,
     ChatCommand::Spawn,
     ChatCommand::Sudo,
     ChatCommand::Tell,
@@ -226,7 +228,7 @@ impl ChatCommand {
                 "Spawn entity with light",
                 true,
             ),
-            ChatCommand::Motd => cmd(vec![Message], "Set the server description", true),
+            ChatCommand::Motd => cmd(vec![Message], "View the server description", false),
             ChatCommand::Object => cmd(
                 vec![Enum("object", OBJECTS.clone(), Required)],
                 "Spawn an object",
@@ -243,6 +245,11 @@ impl ChatCommand {
                 "Set player Level",
                 true,
             ),
+            ChatCommand::SetMotd => cmd(
+                vec![Message],
+                "Set the server description",
+                true,
+            ),
             ChatCommand::Spawn => cmd(
                 vec![
                     Enum("alignment", ALIGNMENTS.clone(), Required),
@@ -303,6 +310,7 @@ impl ChatCommand {
             ChatCommand::Players => "players",
             ChatCommand::RemoveLights => "remove_lights",
             ChatCommand::SetLevel => "set_level",
+            ChatCommand::SetMotd => "set_motd",
             ChatCommand::Spawn => "spawn",
             ChatCommand::Sudo => "sudo",
             ChatCommand::Tell => "tell",

server/Cargo.toml

@@ -14,7 +14,7 @@ world = { package = "veloren-world", path = "../world" }
 
 specs-idvs = { git = "https://gitlab.com/veloren/specs-idvs.git" }
 
-tracing = { version = "0.1", default-features = true }
+tracing = "0.1"
 specs = { version = "0.15.1", features = ["shred-derive"] }
 vek = "0.11.0"
 uvth = "3.1.1"

server/src/cmd.rs

@@ -2,7 +2,7 @@
 //! To implement a new command, add an instance of `ChatCommand` to
 //! `CHAT_COMMANDS` and provide a handler function.
 
-use crate::{Server, ServerSettings, StateExt};
+use crate::{Server, StateExt};
 use chrono::{NaiveTime, Timelike};
 use common::{
     assets,
@@ -83,6 +83,7 @@ fn get_handler(cmd: &ChatCommand) -> CommandHandler {
         ChatCommand::Players => handle_players,
         ChatCommand::RemoveLights => handle_remove_lights,
         ChatCommand::SetLevel => handle_set_level,
+        ChatCommand::SetMotd => handle_set_motd,
         ChatCommand::Spawn => handle_spawn,
         ChatCommand::Sudo => handle_sudo,
         ChatCommand::Tell => handle_tell,
@@ -175,24 +176,39 @@ fn handle_motd(
     _target: EcsEntity,
     args: String,
     action: &ChatCommand,
+) {
+    server.notify_client(
+        client,
+        ServerMsg::broadcast(format!("{}", server.settings().server_description)),
+    );
+}
+
+fn handle_set_motd(
+    server: &mut Server,
+    client: EcsEntity,
+    _target: EcsEntity,
+    args: String,
+    action: &ChatCommand,
 ) {
     match scan_fmt!(&args, &action.arg_fmt(), String) {
         Ok(msg) => {
             server
-                .state_mut()
-                .ecs_mut()
-                .fetch_mut::<ServerSettings>()
-                .server_description = msg.clone();
-            server.server_info.description = msg.clone();
+                .settings_mut()
+                .edit(|s| s.server_description = msg.clone());
             server.notify_client(
                 client,
                 ServerMsg::private(format!("Server description set to \"{}\"", msg)),
             );
         },
-        Err(_) => server.notify_client(
-            client,
-            ServerMsg::broadcast(format!("{}", server.server_info.description)),
-        ),
+        Err(_) => {
+            server
+                .settings_mut()
+                .edit(|s| s.server_description.clear());
+            server.notify_client(
+                client,
+                ServerMsg::broadcast("Removed server description".to_string()),
+            );
+        },
     }
 }
 

server/src/lib.rs

@@ -45,6 +45,7 @@ use std::{
     i32,
     sync::Arc,
     time::{Duration, Instant},
+    ops::{Deref, DerefMut},
 };
 #[cfg(not(feature = "worldgen"))]
 use test_world::{World, WORLD_SIZE};
@@ -80,7 +81,6 @@ pub struct Server {
 
     thread_pool: ThreadPool,
 
-    server_info: ServerInfo,
     metrics: ServerMetrics,
     tick_metrics: TickMetrics,
 }
@@ -237,13 +237,6 @@ impl Server {
                 .name("veloren-worker".into())
                 .build(),
 
-            server_info: ServerInfo {
-                name: settings.server_name.clone(),
-                description: settings.server_description.clone(),
-                git_hash: common::util::GIT_HASH.to_string(),
-                git_date: common::util::GIT_DATE.to_string(),
-                auth_provider: settings.auth_server_address.clone(),
-            },
             metrics,
             tick_metrics,
         };
@@ -264,11 +257,32 @@ impl Server {
         Ok(this)
     }
 
+    pub fn get_server_info(&self) -> ServerInfo {
+        let settings = self.state.ecs().fetch::<ServerSettings>();
+        ServerInfo {
+            name: settings.server_name.clone(),
+            description: settings.server_description.clone(),
+            git_hash: common::util::GIT_HASH.to_string(),
+            git_date: common::util::GIT_DATE.to_string(),
+            auth_provider: settings.auth_server_address.clone(),
+        }
+    }
+
     pub fn with_thread_pool(mut self, thread_pool: ThreadPool) -> Self {
         self.thread_pool = thread_pool;
         self
     }
 
+    /// Get a reference to the server's settings
+    pub fn settings(&self) -> impl Deref<Target=ServerSettings> + '_ {
+        self.state.ecs().fetch::<ServerSettings>()
+    }
+
+    /// Get a mutable reference to the server's settings
+    pub fn settings_mut(&mut self) -> impl DerefMut<Target=ServerSettings> + '_ {
+        self.state.ecs_mut().fetch_mut::<ServerSettings>()
+    }
+
     /// Get a reference to the server's game state.
     pub fn state(&self) -> &State { &self.state }
 
@@ -596,7 +610,7 @@ impl Server {
                         // Send client their entity
                         entity_package: TrackedComps::fetch(&self.state.ecs())
                             .create_entity_package(entity, None, None, None),
-                        server_info: self.server_info.clone(),
+                        server_info: self.get_server_info(),
                         time_of_day: *self.state.ecs().read_resource(),
                         world_map: (WORLD_SIZE.map(|e| e as u32), self.map.clone()),
                     });

server/src/settings.rs

@@ -98,8 +98,7 @@ impl ServerSettings {
         let s: &str = &ron::ser::to_string_pretty(self, ron::ser::PrettyConfig::default())
             .expect("Failed serialize settings.");
         config_file
-            .write_all(s.as_bytes())
-            .expect("Failed to write to config file.");
+            .write_all(s.as_bytes())?;
         Ok(())
     }
 
@@ -135,4 +134,12 @@ impl ServerSettings {
     }
 
     fn get_settings_path() -> PathBuf { PathBuf::from(r"server_settings.ron") }
+
+    pub fn edit<R>(&mut self, f: impl FnOnce(&mut Self) -> R) -> R {
+        let r = f(self);
+        self
+            .save_to_file()
+            .unwrap_or_else(|err| warn!("Failed to save settings: {:?}", err));
+        r
+    }
 }