Add extracted source directory and README navigation

extracted-source/node_modules/@aws-sdk/middleware-recursion-detection/dist-cjs/index.js

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+'use strict';
+
+var recursionDetectionMiddleware = require('./recursionDetectionMiddleware');
+
+const recursionDetectionMiddlewareOptions = {
+    step: "build",
+    tags: ["RECURSION_DETECTION"],
+    name: "recursionDetectionMiddleware",
+    override: true,
+    priority: "low",
+};
+
+const getRecursionDetectionPlugin = (options) => ({
+    applyToStack: (clientStack) => {
+        clientStack.add(recursionDetectionMiddleware.recursionDetectionMiddleware(), recursionDetectionMiddlewareOptions);
+    },
+});
+
+exports.getRecursionDetectionPlugin = getRecursionDetectionPlugin;
+Object.keys(recursionDetectionMiddleware).forEach(function (k) {
+    if (k !== 'default' && !Object.prototype.hasOwnProperty.call(exports, k)) Object.defineProperty(exports, k, {
+        enumerable: true,
+        get: function () { return recursionDetectionMiddleware[k]; }
+    });
+});

extracted-source/node_modules/@aws-sdk/middleware-recursion-detection/dist-cjs/recursionDetectionMiddleware.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.recursionDetectionMiddleware = void 0;
+const lambda_invoke_store_1 = require("@aws/lambda-invoke-store");
+const protocol_http_1 = require("@smithy/protocol-http");
+const TRACE_ID_HEADER_NAME = "X-Amzn-Trace-Id";
+const ENV_LAMBDA_FUNCTION_NAME = "AWS_LAMBDA_FUNCTION_NAME";
+const ENV_TRACE_ID = "_X_AMZN_TRACE_ID";
+const recursionDetectionMiddleware = () => (next) => async (args) => {
+    const { request } = args;
+    if (!protocol_http_1.HttpRequest.isInstance(request)) {
+        return next(args);
+    }
+    const traceIdHeader = Object.keys(request.headers ?? {}).find((h) => h.toLowerCase() === TRACE_ID_HEADER_NAME.toLowerCase()) ??
+        TRACE_ID_HEADER_NAME;
+    if (request.headers.hasOwnProperty(traceIdHeader)) {
+        return next(args);
+    }
+    const functionName = process.env[ENV_LAMBDA_FUNCTION_NAME];
+    const traceIdFromEnv = process.env[ENV_TRACE_ID];
+    const invokeStore = await lambda_invoke_store_1.InvokeStore.getInstanceAsync();
+    const traceIdFromInvokeStore = invokeStore?.getXRayTraceId();
+    const traceId = traceIdFromInvokeStore ?? traceIdFromEnv;
+    const nonEmptyString = (str) => typeof str === "string" && str.length > 0;
+    if (nonEmptyString(functionName) && nonEmptyString(traceId)) {
+        request.headers[TRACE_ID_HEADER_NAME] = traceId;
+    }
+    return next({
+        ...args,
+        request,
+    });
+};
+exports.recursionDetectionMiddleware = recursionDetectionMiddleware;