initial import

src/output.ts

@@ -0,0 +1,21 @@
+export function printResult(data: unknown, raw?: boolean): void {
+  if (raw) {
+    console.log(JSON.stringify(data));
+  } else {
+    console.log(JSON.stringify(data, null, 2));
+  }
+}
+
+export function exitOnError(err: Error): never {
+  console.error(`[gmgn-cli] ${err.message}`);
+  if (process.env.GMGN_DEBUG) {
+    if ((err as NodeJS.ErrnoException).code) {
+      console.error(`[gmgn-cli] code: ${(err as NodeJS.ErrnoException).code}`);
+    }
+    if ((err as { cause?: unknown }).cause) {
+      console.error(`[gmgn-cli] cause: ${(err as { cause?: unknown }).cause}`);
+    }
+    console.error(err.stack ?? "");
+  }
+  process.exit(1);
+}