feat: add simple cli user management

src/cli.rs

@@ -39,7 +39,7 @@ pub enum Subcommands {
 #[derive(Args)]
 pub struct UserCmd {
     #[command(subcommand)]
-    cmd: UserSubCmd,
+    pub cmd: UserSubCmd,
 }
 
 #[derive(Subcommand)]

src/db/user.rs

@@ -51,6 +51,22 @@ impl User {
             .verify_password(password.as_ref().as_bytes(), &password_hash)
             .is_ok()
     }
+
+    pub fn all(pool: &DbPool) -> Result<Vec<Self>, DbError> {
+        let conn = pool.get()?;
+
+        let mut stmt = conn.prepare("select * from users")?;
+        let users: Result<Vec<_>, _> = stmt.query_map((), Self::from_row)?.collect();
+
+        Ok(users?)
+    }
+
+    pub fn remove_by_username(pool: &DbPool, username: impl AsRef<str>) -> Result<bool, DbError> {
+        let conn = pool.get()?;
+        let mut stmt = conn.prepare("delete from users where username = $1")?;
+
+        Ok(stmt.execute((username.as_ref(),))? > 0)
+    }
 }
 
 fn hash_password(password: impl AsRef<str>) -> String {

src/main.rs

@@ -27,6 +27,36 @@ pub struct Context {
 }
 
 fn run_user_cli(data_dir: impl AsRef<Path>, cmd: UserCmd) -> Result<(), DbError> {
+    let manager = SqliteConnectionManager::file(data_dir.as_ref().join(DB_FILENAME));
+    let pool = r2d2::Pool::new(manager)?;
+
+    match cmd.cmd {
+        cli::UserSubCmd::List => {
+            let users = db::User::all(&pool)?;
+
+            println!("id\tusername\tis admin");
+
+            for user in users {
+                println!("{}\t{}\t{}", user.id, user.username, user.admin);
+            }
+        }
+        cli::UserSubCmd::Add {
+            username,
+            password,
+            admin,
+        } => {
+            db::NewUser {
+                username,
+                password,
+                admin,
+            }
+            .insert(&pool)?;
+        }
+        cli::UserSubCmd::Remove { username } => {
+            db::User::remove_by_username(&pool, &username)?;
+        }
+    }
+
     Ok(())
 }