Add extracted source directory and README navigation

extracted-source/node_modules/@smithy/shared-ini-file-loader/dist-cjs/getHomeDir.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getHomeDir = void 0;
+const os_1 = require("os");
+const path_1 = require("path");
+const homeDirCache = {};
+const getHomeDirCacheKey = () => {
+    if (process && process.geteuid) {
+        return `${process.geteuid()}`;
+    }
+    return "DEFAULT";
+};
+const getHomeDir = () => {
+    const { HOME, USERPROFILE, HOMEPATH, HOMEDRIVE = `C:${path_1.sep}` } = process.env;
+    if (HOME)
+        return HOME;
+    if (USERPROFILE)
+        return USERPROFILE;
+    if (HOMEPATH)
+        return `${HOMEDRIVE}${HOMEPATH}`;
+    const homeDirCacheKey = getHomeDirCacheKey();
+    if (!homeDirCache[homeDirCacheKey])
+        homeDirCache[homeDirCacheKey] = (0, os_1.homedir)();
+    return homeDirCache[homeDirCacheKey];
+};
+exports.getHomeDir = getHomeDir;