chore: set SQLX_OFFLINE=true (#587)

we are preparing anyways and without `SQLX_OFFLINE`, offline builds have
to remove the `.env` file first (e.g. homebrew)

Author: psteinroe

.env

@@ -1 +1,2 @@
+SQLX_OFFLINE=true
 DATABASE_URL=postgresql://postgres:postgres@127.0.0.1:5432/postgres

.gitattributes

@@ -0,0 +1,4 @@
+# Ensure consistent line endings for SQL files across all platforms
+# This is required for sqlx offline mode to generate consistent query hashes
+# see https://github.com/launchbadge/sqlx/issues/1494
+*.sql text eol=lf

.github/workflows/pull_request.yml

@@ -12,6 +12,7 @@ on:
       - "Cargo.lock"
       - "rust-toolchain.toml"
       - "rustfmt.toml"
+      - ".env"
       # or in js packages
       - "packages/**"
       # or in workflows

crates/pgls_lsp/tests/server.rs

@@ -858,19 +858,18 @@ async fn test_execute_statement(test_db: PgPool) -> Result<()> {
     server.load_configuration().await?;
 
     let users_tbl_exists = async || {
-        let result = sqlx::query!(
+        sqlx::query_scalar::<_, bool>(
             r#"
             select exists (
-                select 1 as exists
+                select 1
                 from pg_catalog.pg_tables
                 where tablename = 'users'
-            );
-        "#
+            )
+        "#,
         )
         .fetch_one(&test_db.clone())
-        .await;
-
-        result.unwrap().exists.unwrap()
+        .await
+        .unwrap()
     };
 
     assert!(