feat: allow to infer database from url connection

src/sql.rs

@@ -1,9 +1,28 @@
-use crate::error::Result;
+use clap::ValueEnum;
+use url::Url;
+
+use crate::error::{Error, Result};
 
 mod postgres;
 
+#[derive(ValueEnum, Clone)]
+pub enum Database {
+    Postgres,
+}
+
 pub async fn handle_query(url: String, query: &String) -> Result<()> {
-    let connector = postgres::PgConnector::new(url).await?;
+    let parse = Url::parse(&url)?;
+    let scheme = parse.scheme();
+
+    let connector = match scheme {
+        "postgresql" => postgres::PgConnector::new(url).await?,
+        &_ => {
+            return Err(Error::Generic(format!(
+                "Database `{}` is not supported",
+                scheme
+            )))
+        }
+    };
 
     let rows = connector.query(query).await?;