refactor: better REPL api

src/server/models/user.model.js

@@ -47,7 +47,7 @@ User.saltRounds = 10;
 export default User;
 
 registerHooks({
-  replCommands: (socket) => ({
+  replCommands: () => ({
     createUser: (spec) => {
       const [email, maybePassword] = spec.split(' ', 2);
       const password = maybePassword || randomBytes(8).toString('hex');
@@ -58,13 +58,11 @@ registerHooks({
       const password = randomBytes(8).toString('hex');
       const user = await User.findOne({where: {email}});
       if (user) {
-        user.addHashedPassword(password)
+        return user.addHashedPassword(password)
           .then(() => user.save())
-          // eslint-disable-next-line no-console
-          .then(() => socket.write(`New password:\n\n${password}\n`));
+          .then(() => `\nNew password: ${password}\n\n`);
       }
-      // eslint-disable-next-line no-console
-      console.log('User not found.');
+      return 'User not found.\n';
     },
   }),
 }, module.id);

src/server/repl.js

@@ -16,9 +16,17 @@ export function createReplServer() {
       replServer.context[key] = value;
     });
     Object.entries(
-      invokeHookFlat('replCommands', socket).reduce((r, commands) => ({...r, ...commands}), {}),
+      invokeHookFlat('replCommands').reduce((r, commands) => ({...r, ...commands}), {}),
     ).forEach(([key, value]) => {
-      replServer.defineCommand(key, value);
+      replServer.defineCommand(key, async (arg) => {
+        const result = await value(arg);
+        if (result) {
+          socket.write(result, () => replServer.displayPrompt());
+        }
+        else {
+          replServer.displayPrompt();
+        }
+      });
     });
   });
   netServer.listen(`/tmp/reddichat-${Date.now()}.sock`);