[shared] Add SpecModel (Azure#33362)

- Fixes Azure#33227

Author: mikeharder

.github/package-lock.json

@@ -0,0 +1,45 @@
+#!/usr/bin/env node
+
+import { ConsoleLogger } from "../src/logger.js";
+import { SpecModel } from "../src/spec-model.js";
+
+const USAGE =
+  "Usage: npx spec-model path/to/spec [--debug] [--include-refs] [--relative-paths]\n" +
+  "Example: npx spec-model ../../specfication/contosowidgetmanager";
+
+// Exclude first two args (node, script file)
+let args = process.argv.slice(2);
+
+const debug = args.includes("--debug");
+args = args.filter((a) => a != "--debug");
+
+const includeRefs = args.includes("--include-refs");
+args = args.filter((a) => a != "--include-refs");
+
+const relativePaths = args.includes("--relative-paths");
+args = args.filter((a) => a != "--relative-paths");
+
+if (args.length < 1) {
+  console.error(USAGE);
+  process.exit(1);
+}
+
+if (args.length > 1) {
+  console.error("ERROR: Too many arguments\n");
+  console.error(USAGE);
+  process.exit(1);
+}
+
+const specPath = args[0];
+
+const specModel = new SpecModel(specPath, {
+  logger: new ConsoleLogger(debug),
+});
+
+console.log(
+  JSON.stringify(
+    await specModel.toJSONAsync({ includeRefs, relativePaths }),
+    null,
+    2,
+  ),
+);