chore: import upstream snapshot with attribution

packages/sdk/script/generate.ts

@@ -0,0 +1,65 @@
+#!/usr/bin/env bun
+// Generates src/generated.ts (model family union) and
+// src/snapshot.js (the bundled data snapshot) from this repository's TOMLs.
+
+import path from "node:path"
+import { generateCatalog, ModelFamilyValues } from "@models.dev/core"
+
+const root = path.join(import.meta.dirname, "..", "..", "..")
+const src = path.join(import.meta.dirname, "..", "src")
+
+function sortRecord<T>(record: Record<string, T>): Record<string, T> {
+  return Object.fromEntries(Object.entries(record).sort(([a], [b]) => (a < b ? -1 : a > b ? 1 : 0)))
+}
+
+/** Deterministic catalog: provider, per-provider model, and metadata keys sorted. */
+export async function loadCatalog() {
+  const catalog = await generateCatalog(root)
+  const providers = sortRecord(
+    Object.fromEntries(
+      Object.entries(catalog.providers).map(([id, provider]) => [id, { ...provider, models: sortRecord(provider.models) }]),
+    ),
+  )
+  return { providers, models: sortRecord(catalog.models) }
+}
+
+/** The exact JSON payload embedded in src/snapshot.js. Used by publish to diff against npm. */
+export function snapshotPayload(catalog: Awaited<ReturnType<typeof loadCatalog>>) {
+  return JSON.stringify(catalog)
+}
+
+function union(values: string[]) {
+  return values.map((value) => `  | ${JSON.stringify(value)}`).join("\n")
+}
+
+export async function generate() {
+  const catalog = await loadCatalog()
+
+  const families = [...new Set<string>(ModelFamilyValues)].sort()
+  await Bun.write(
+    path.join(src, "generated.ts"),
+    `// Generated by script/generate.ts. Do not edit; run \`bun run generate\` in packages/sdk.
+
+/** Model family identifiers used to group related models. */
+export type ModelFamily =
+${union(families)}
+`,
+  )
+
+  await Bun.write(
+    path.join(src, "snapshot.js"),
+    `// Generated by script/generate.ts. Do not edit; run \`bun run generate\` in packages/sdk.
+const data = /* @__PURE__ */ JSON.parse(${JSON.stringify(snapshotPayload(catalog))})
+export const providers = data.providers
+export const models = data.models
+export const generatedAt = ${JSON.stringify(new Date().toISOString())}
+export default data
+`,
+  )
+
+}
+
+if (import.meta.main) {
+  await generate()
+  console.log("generated src/generated.ts and src/snapshot.js")
+}