fix: prisma plugin not respecting zenstack.output

packages/cli/src/plugins/prisma.ts

@@ -5,10 +5,10 @@ import path from 'node:path';
 const plugin: CliPlugin = {
     name: 'Prisma Schema Generator',
     statusText: 'Generating Prisma schema',
-    async generate({ model, schemaFile, defaultOutputPath, pluginOptions }) {
+    async generate({ model, defaultOutputPath, pluginOptions }) {
         let outFile = path.join(defaultOutputPath, 'schema.prisma');
         if (typeof pluginOptions['output'] === 'string') {
-            outFile = path.resolve(path.dirname(schemaFile), pluginOptions['output']);
+            outFile = path.resolve(defaultOutputPath, pluginOptions['output']);
             if (!fs.existsSync(path.dirname(outFile))) {
                 fs.mkdirSync(path.dirname(outFile), { recursive: true });
             }

packages/cli/test/plugins/prisma-plugin.test.ts

@@ -57,4 +57,25 @@ model User {
         runCli('generate', workDir);
         expect(fs.existsSync(path.join(workDir, 'prisma/schema.prisma'))).toBe(true);
     });
+
+    it('can generate a Prisma schema with custom output relative to zenstack.output', () => {
+        const workDir = createProject(`
+plugin prisma {
+    provider = '@core/prisma'
+    output = './schema.prisma'
+}
+
+model User {
+    id String @id @default(cuid())
+}
+`);
+
+        const pkgJson = JSON.parse(fs.readFileSync(path.join(workDir, 'package.json'), 'utf8'));
+        pkgJson.zenstack = {
+            output: './relative',
+        };
+        fs.writeFileSync(path.join(workDir, 'package.json'), JSON.stringify(pkgJson, null, 2));
+        runCli('generate', workDir);
+        expect(fs.existsSync(path.join(workDir, 'relative/schema.prisma'))).toBe(true);
+    });
 });