client: add prefix completer for create-{db,user}

src/client/commands/create_db.rs

@@ -1,10 +1,12 @@
 use clap::Parser;
+use clap_complete::ArgValueCompleter;
 use futures_util::SinkExt;
 use tokio_stream::StreamExt;
 
 use crate::{
     client::commands::{erroneous_server_response, print_authorization_owner_hint},
     core::{
+        completion::prefix_completer,
         protocol::{
             ClientToServerMessageStream, CreateDatabaseError, Request, Response,
             print_create_databases_output_status, print_create_databases_output_status_json,
@@ -18,6 +20,7 @@ use crate::{
 pub struct CreateDbArgs {
     /// The MySQL database(s) to create
     #[arg(num_args = 1.., value_name = "DB_NAME")]
+    #[cfg_attr(not(feature = "suid-sgid-mode"), arg(add = ArgValueCompleter::new(prefix_completer)))]
     name: Vec<MySQLDatabase>,
 
     /// Print the information as JSON

src/client/commands/create_user.rs

@@ -1,4 +1,5 @@
 use clap::Parser;
+use clap_complete::ArgValueCompleter;
 use dialoguer::Confirm;
 use futures_util::SinkExt;
 use tokio_stream::StreamExt;
@@ -9,6 +10,7 @@ use crate::{
         read_password_from_stdin_with_double_check,
     },
     core::{
+        completion::prefix_completer,
         protocol::{
             ClientToServerMessageStream, CreateUserError, Request, Response,
             print_create_users_output_status, print_create_users_output_status_json,
@@ -22,6 +24,7 @@ use crate::{
 pub struct CreateUserArgs {
     /// The MySQL user(s) to create
     #[arg(num_args = 1.., value_name = "USER_NAME")]
+    #[cfg_attr(not(feature = "suid-sgid-mode"), arg(add = ArgValueCompleter::new(prefix_completer)))]
     username: Vec<MySQLUser>,
 
     /// Do not ask for a password, leave it unset

src/client/mysql_admutils_compatibility/mysql_dbadm.rs

@@ -18,7 +18,7 @@ use crate::{
     },
     core::{
         bootstrap::bootstrap_server_connection_and_drop_privileges,
-        completion::mysql_database_completer,
+        completion::{mysql_database_completer, prefix_completer},
         database_privileges::DatabasePrivilegeRow,
         protocol::{
             ClientToServerMessageStream, ListPrivilegesError, Request, Response,
@@ -124,6 +124,7 @@ pub enum Command {
 pub struct CreateArgs {
     /// The name of the DATABASE(s) to create.
     #[arg(num_args = 1..)]
+    #[cfg_attr(not(feature = "suid-sgid-mode"), arg(add = ArgValueCompleter::new(prefix_completer)))]
     name: Vec<MySQLDatabase>,
 }
 

src/client/mysql_admutils_compatibility/mysql_useradm.rs

@@ -18,7 +18,7 @@ use crate::{
     },
     core::{
         bootstrap::bootstrap_server_connection_and_drop_privileges,
-        completion::mysql_user_completer,
+        completion::{mysql_user_completer, prefix_completer},
         protocol::{
             ClientToServerMessageStream, Request, Response, create_client_to_server_message_stream,
         },
@@ -87,6 +87,7 @@ pub enum Command {
 pub struct CreateArgs {
     /// The name of the USER(s) to create.
     #[arg(num_args = 1..)]
+    #[cfg_attr(not(feature = "suid-sgid-mode"), arg(add = ArgValueCompleter::new(prefix_completer)))]
     name: Vec<MySQLUser>,
 }