Add get_password method

Author: V02460

sqlx-postgres/src/connection/establish.rs

@@ -77,7 +77,7 @@ impl PgConnection {
 
                         stream
                             .send(Password::Cleartext(
-                                options.password.as_deref().unwrap_or_default(),
+                                &options.get_password().unwrap_or_default(),
                             ))
                             .await?;
                     }
@@ -91,7 +91,7 @@ impl PgConnection {
                         stream
                             .send(Password::Md5 {
                                 username: &options.username,
-                                password: options.password.as_deref().unwrap_or_default(),
+                                password: &options.get_password().unwrap_or_default(),
                                 salt: body.salt,
                             })
                             .await?;

sqlx-postgres/src/connection/sasl.rs

@@ -87,7 +87,7 @@ pub(crate) async fn authenticate(
 
     // SaltedPassword := Hi(Normalize(password), salt, i)
     let salted_password = hi(
-        options.password.as_deref().unwrap_or_default(),
+        &options.get_password().unwrap_or_default(),
         &cont.salt,
         cont.iterations,
     )?;

sqlx-postgres/src/options/mod.rs

@@ -519,6 +519,21 @@ impl PgConnectOptions {
         &self.username
     }
 
+    /// Get the password.
+    ///
+    /// ```rust
+    /// # use sqlx_postgres::PgConnectOptions;
+    /// let options = PgConnectOptions::new()
+    ///     .password("53C237");
+    /// assert_eq!(options.get_password().as_deref(), Some("53C237"));
+    /// ```
+    pub fn get_password(&self) -> Option<Cow<'_, str>> {
+        if self.password.is_some() {
+            return self.password.as_deref().map(Cow::Borrowed);
+        }
+        None
+    }
+
     /// Get the current database name.
     ///
     /// # Example