fix: make datasource url optional (#2305)

Author: ymc9

packages/schema/src/language-server/validator/datasource-validator.ts

@@ -43,9 +43,8 @@ export default class DataSourceValidator implements AstValidator<DataSource> {
     private validateUrl(ds: DataSource, accept: ValidationAcceptor) {
         const url = ds.fields.find((f) => f.name === 'url');
         if (!url) {
-            accept('error', 'datasource must include a "url" field', {
-                node: ds,
-            });
+            // url field is optional for new versions of Prisma
+            return;
         }
 
         for (const fieldName of ['url', 'shadowDatabaseUrl']) {

packages/schema/tests/generator/prisma-generator.test.ts

@@ -21,7 +21,7 @@ describe('Prisma generator test', () => {
         process.chdir(r.name);
 
         execSync('npm init -y', { stdio: 'ignore' });
-        execSync('npm install prisma');
+        execSync('npm install prisma@6.19.x');
     });
 
     afterEach(() => {

packages/schema/tests/schema/validation/datasource-validation.test.ts

@@ -10,10 +10,7 @@ describe('Datasource Validation Tests', () => {
         expect(result).toMatchObject({
             status: 'rejected',
             reason: {
-                cause: [
-                    { message: 'datasource must include a "provider" field' },
-                    { message: 'datasource must include a "url" field' },
-                ],
+                cause: [{ message: 'datasource must include a "provider" field' }],
             },
         });
     });

tests/integration/tests/cli/generate.test.ts

@@ -45,7 +45,7 @@ model Post {
         // set up project
         fs.writeFileSync('package.json', JSON.stringify({ name: 'my app', version: '1.0.0' }));
         createNpmrc();
-        installPackage('prisma @prisma/client zod@^3.25.0 @types/node@20');
+        installPackage('prisma@6.19.x @prisma/client@6.19.x zod@^3.25.0 @types/node@20');
         installPackage(path.join(__dirname, '../../../../packages/runtime/dist'));
 
         // set up schema