Backend half

SerpentRace_Backend/node_modules/tsconfig-paths/src/config-loader.ts

@@ -0,0 +1,89 @@
+import * as TsConfigLoader2 from "./tsconfig-loader";
+import * as path from "path";
+
+export interface ExplicitParams {
+  baseUrl: string;
+  paths: { [key: string]: Array<string> };
+  mainFields?: (string | string[])[];
+  addMatchAll?: boolean;
+}
+
+export type TsConfigLoader = (
+  params: TsConfigLoader2.TsConfigLoaderParams
+) => TsConfigLoader2.TsConfigLoaderResult;
+
+export interface ConfigLoaderParams {
+  cwd: string;
+  explicitParams?: ExplicitParams;
+  tsConfigLoader?: TsConfigLoader;
+}
+
+export interface ConfigLoaderSuccessResult {
+  resultType: "success";
+  configFileAbsolutePath: string;
+  baseUrl?: string;
+  absoluteBaseUrl: string;
+  paths: { [key: string]: Array<string> };
+  mainFields?: (string | string[])[];
+  addMatchAll?: boolean;
+}
+
+export interface ConfigLoaderFailResult {
+  resultType: "failed";
+  message: string;
+}
+
+export type ConfigLoaderResult =
+  | ConfigLoaderSuccessResult
+  | ConfigLoaderFailResult;
+
+export function loadConfig(cwd: string = process.cwd()): ConfigLoaderResult {
+  return configLoader({ cwd });
+}
+
+export function configLoader({
+  cwd,
+  explicitParams,
+  tsConfigLoader = TsConfigLoader2.tsConfigLoader,
+}: ConfigLoaderParams): ConfigLoaderResult {
+  if (explicitParams) {
+    const absoluteBaseUrl = path.isAbsolute(explicitParams.baseUrl)
+      ? explicitParams.baseUrl
+      : path.join(cwd, explicitParams.baseUrl);
+
+    return {
+      resultType: "success",
+      configFileAbsolutePath: "",
+      baseUrl: explicitParams.baseUrl,
+      absoluteBaseUrl,
+      paths: explicitParams.paths,
+      mainFields: explicitParams.mainFields,
+      addMatchAll: explicitParams.addMatchAll,
+    };
+  }
+
+  // Load tsconfig and create path matching function
+  const loadResult = tsConfigLoader({
+    cwd,
+    getEnv: (key: string) => process.env[key],
+  });
+
+  if (!loadResult.tsConfigPath) {
+    return {
+      resultType: "failed",
+      message: "Couldn't find tsconfig.json",
+    };
+  }
+
+  return {
+    resultType: "success",
+    configFileAbsolutePath: loadResult.tsConfigPath,
+    baseUrl: loadResult.baseUrl,
+    absoluteBaseUrl: path.resolve(
+      path.dirname(loadResult.tsConfigPath),
+      loadResult.baseUrl || ""
+    ),
+    paths: loadResult.paths || {},
+    addMatchAll: loadResult.baseUrl !== undefined,
+  };
+}