fail earlier if dest dir does not exist, fix tools/gen.sh

oxide-openapi-gen-ts/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@oxide/openapi-gen-ts",
-  "version": "0.1.12",
+  "version": "0.1.13",
   "description": "OpenAPI client generator used to generate Oxide TypeScript SDK",
   "keywords": [
     "oxide",

oxide-openapi-gen-ts/src/index.ts

@@ -15,6 +15,7 @@ import { generateMSWHandlers } from "./client/msw-handlers";
 import { generateTypeTests } from "./client/type-tests";
 import { generateZodValidators } from "./client/zodValidators";
 import { resolve } from "node:path";
+import { existsSync } from "node:fs";
 import parseArgs from "minimist";
 
 function helpAndExit(msg?: string): never {
@@ -47,17 +48,27 @@ function parseFeatures(featuresArg: string | undefined) {
       helpAndExit(`Unrecognized feature '${feature}'.`);
     }
   }
+
+  const validated = features as Feature[];
+
   return {
-    zod: features.includes("zod"),
-    msw: features.includes("msw"),
-    typetests: features.includes("typetests"),
+    zod: validated.includes("zod"),
+    msw: validated.includes("msw"),
+    typetests: validated.includes("typetests"),
   };
 }
 
 async function generate(specFile: string, destDir: string, features: Features) {
   // destination directory is resolved relative to CWD
   const destDirAbs = resolve(process.cwd(), destDir);
 
+  if (!existsSync(destDirAbs)) {
+    throw new Error(`Error: destination directory does not exist.
+  Argument given: ${destDirAbs}
+  Resolved path:  ${destDirAbs}
+`);
+  }
+
   const rawSpec = await SwaggerParser.parse(specFile);
   if (!("openapi" in rawSpec) || !rawSpec.openapi.startsWith("3.0")) {
     throw new Error("Only OpenAPI 3.0 is currently supported");

tools/gen.sh

@@ -19,5 +19,5 @@ SPEC_FILE="./spec.json"
 # TODO: we could get rid of this DL if a test didn't rely on it
 curl --fail "$SPEC_URL" -o $SPEC_FILE
 
-npx tsx "$ROOT_DIR/oxide-openapi-gen-ts/src/index.ts" $SPEC_FILE $DEST_DIR
+npx tsx "$ROOT_DIR/oxide-openapi-gen-ts/src/index.ts" $SPEC_FILE $DEST_DIR --features zod,msw,typetests
 npx prettier --write --log-level error "$DEST_DIR"