Task-1: fs

src/fs/copy.js

@@ -1,5 +1,23 @@
+import {cp} from "fs/promises";
+import {dirname} from "../utils/dir.js";
+import {COPY_FILE_EXISTS} from "../utils/fs_error_codes.js";
+
 const copy = async () => {
-    // Write your code here 
+    try {
+        const __dirname = dirname(import.meta.url);
+
+        await cp(
+            `${__dirname}/files`,
+            `${__dirname}/files_copy`,
+            {errorOnExist: true, recursive: true, force: false}
+        );
+    } catch (error) {
+        if (error.code === COPY_FILE_EXISTS) {
+            throw new Error('FS operation failed');
+        }
+
+        throw error;
+    }
 };
 
 await copy();

src/fs/create.js

@@ -1,5 +1,19 @@
+import {writeFile} from 'fs/promises';
+import {dirname} from "../utils/dir.js";
+import {FILE_EXISTS} from "../utils/fs_error_codes.js";
+
 const create = async () => {
-    // Write your code here 
+    try {
+        const __dirname = dirname(import.meta.url);
+
+        await writeFile(`${__dirname}/files/fresh.txt`, 'I am fresh and young', { flag: 'wx' });
+    } catch (error) {
+        if (error.code === FILE_EXISTS) {
+            throw new Error('FS operation failed');
+        }
+
+        throw error;
+    }
 };
 
 await create();

src/fs/delete.js

@@ -1,5 +1,18 @@
+import { unlink } from 'node:fs/promises';
+import {dirname} from "../utils/dir.js";
+import {FILE_NOT_FOUND} from "../utils/fs_error_codes.js";
 const remove = async () => {
-    // Write your code here 
+    try {
+        const __dirname = dirname(import.meta.url);
+
+        await unlink(`${__dirname}/files/fileToRemove.txt`);
+    } catch (error) {console.log(error);
+        if (error.code === FILE_NOT_FOUND) {
+            throw new Error('FS operation failed');
+        }
+
+        throw error;
+    }
 };
 
 await remove();

src/fs/list.js

@@ -1,5 +1,23 @@
+import {readdir} from "fs/promises";
+import {dirname} from "../utils/dir.js";
+import {FILE_NOT_FOUND} from "../utils/fs_error_codes.js";
+
 const list = async () => {
-    // Write your code here 
+    try {
+        const __dirname = dirname(import.meta.url);
+
+        const files = await readdir(`${__dirname}/files`);
+
+        for (const file of files) {
+            console.log(file);
+        }
+    } catch (error) {
+        if (error.code === FILE_NOT_FOUND) {
+            throw new Error('FS operation failed');
+        }
+
+        throw error;
+    }
 };
 
 await list();

src/fs/read.js

@@ -1,5 +1,27 @@
+import readline from "readline";
+import events from "events";
+import {createReadStream} from 'fs';
+import {dirname} from "../utils/dir.js";
+import {FILE_NOT_FOUND} from "../utils/fs_error_codes.js";
+
 const read = async () => {
-    // Write your code here 
+    try {
+        const __dirname = dirname(import.meta.url);
+
+        const readLine = readline.createInterface({
+            input: createReadStream(`${__dirname}/files/fileToRead.txt`)
+        });
+
+        readLine.on('line', line => console.log(line));
+
+        await events.once(readLine, 'close');
+    } catch (error) {
+        if (error.code === FILE_NOT_FOUND) {
+            throw new Error('FS operation failed');
+        }
+
+        throw error;
+    }
 };
 
 await read();

src/fs/rename.js

@@ -1,5 +1,23 @@
+import {cp} from "fs/promises";
+import {dirname} from "../utils/dir.js";
+import {rename as fileRename} from 'fs/promises';
+import {COPY_FILE_EXISTS, FILE_NOT_FOUND} from "../utils/fs_error_codes.js";
+
 const rename = async () => {
-    // Write your code here 
+    try {
+        const __dirname = dirname(import.meta.url);
+
+        await fileRename(
+            `${__dirname}/files/wrongFilename.txt`,
+            `${__dirname}/files/properFilename.md`
+        );
+    } catch (error) {
+        if ([FILE_NOT_FOUND, COPY_FILE_EXISTS].indexOf(error.code) !== -1) {
+            throw new Error('FS operation failed');
+        }
+
+        throw error;
+    }
 };
 
 await rename();