Child directory support (#16)

* Adding base-url and add-path feature support from child directories

* Adding child directory support for cleanup

* Fixing a bug for cleanup

* Updating README

README.md

@@ -4,7 +4,7 @@
 ![npm bundle size](https://img.shields.io/bundlephobia/min/unrelate)
 ![npm](https://img.shields.io/npm/v/unrelate)
 
-This library is used to transform relative paths into absolute paths for [TypeScript](https://www.typescriptlang.org) projects. **You should have a [tsconfig.json](https://www.typescriptlang.org/docs/handbook/tsconfig-json.html) file present in the directory where you run this tool.**
+This library is used to transform relative paths into absolute paths for [TypeScript](https://www.typescriptlang.org) projects.
 
 ## Usage
 
@@ -48,7 +48,7 @@ npx unrelate <command>
 
 ## Base URL
 
-Before you start using `unrelate`, you have to configure the [baseUrl](https://www.typescriptlang.org/docs/handbook/module-resolution.html#base-url) property in your `tsconfig.json` file. It informs the compiler where to find modules. All absolute import paths you configure using `unrelate`, are always relative to the `baseUrl`. So set the property to the folder that contains, or contains subfolders that contains all the `.ts` files that would use the absolute imports. It's common to set `baseUrl` to the project root folder or the `src` or `lib` folders, depending on where most of your code lies.
+Before you start using `unrelate`, you have to configure the [baseUrl](https://www.typescriptlang.org/docs/handbook/module-resolution.html#base-url) property in your [tsconfig.json](https://www.typescriptlang.org/docs/handbook/tsconfig-json.html) file. It informs the compiler where to find modules. All absolute import paths you configure using `unrelate`, are always relative to the `baseUrl`. So set the property to the folder that contains, or contains subfolders that contains all the `.ts` files that would use the absolute imports. It's common to set `baseUrl` to the project root folder or the `src` or `lib` folders, depending on where most of your code lies.
 
 ### Configuration
 

package.json

@@ -25,7 +25,8 @@
   "author": "lloydaf",
   "license": "MIT",
   "dependencies": {
-    "comment-json": "^3.0.3"
+    "comment-json": "^3.0.3",
+    "find-up": "^5.0.0"
   },
   "devDependencies": {
     "@types/comment-json": "^1.1.1",

src/lib/cleanup.ts

@@ -5,6 +5,7 @@ import {
   doesItExist,
   fileOrFolder,
   getDirectoryItems,
+  getAbsolutePathRelativeToBaseUrl,
 } from '../util/file.util';
 import { CommentJSONValue } from 'comment-json';
 import { dirname } from 'path';
@@ -37,17 +38,19 @@ export async function cleanup(paramPath: string): Promise<void> {
   const configManager = configFileDataManager();
   const configFile: CommentJSONValue = (await configManager.next()).value;
   const configuredPathsObj: Record<string, string[]> = configFile?.compilerOptions?.paths;
-  const baseUrl: string = configFile?.compilerOptions?.baseUrl;
+  let baseUrl: string = configFile?.compilerOptions?.baseUrl;
 
   if (!configuredPathsObj || !baseUrl) {
     throw new Error('You need to configure base-url and paths first');
   }
 
+  !baseUrl.endsWith('/') && (baseUrl = `${baseUrl}/`);
+
   // the configured paths
   const configuredPaths: Record<string, string> = Object.entries(configuredPathsObj).reduce(
     (acc: Record<string, string>, [key, val]: [string, string[]]) => ({
       ...acc,
-      [getFilePath(baseUrl + val[0])]: removeTrailingCharacter(key, '*'),
+      [getAbsolutePathRelativeToBaseUrl(baseUrl + val[0])]: removeTrailingCharacter(key, '*'),
     }),
     {},
   );
@@ -58,6 +61,7 @@ export async function cleanup(paramPath: string): Promise<void> {
   const relativePathsInFile: string[] = file.match(RegExp(`(?<=['"]{1})(\\./)*(\\.\\./)+.*`, 'g')) || [];
   const absolutePathsInFile =
     relativePathsInFile.map((path: string) => getFilePath(`${dirname(paramPath)}/${path}`)) || [];
+
   Object.entries(configuredPaths).forEach(([key, value]) => {
     absolutePathsInFile.forEach((path, index) => {
       if (path.includes(key)) {