Hexlet tests and linter status:

✨ Project-gendiff ✨

Project 'Difference calculator'. The project implements a utility to find differences in configuration files.

Description

Utility Features:

• support for different formats - json, yaml, ini;
• generating a report in the form of plain text, pretty and json

Installation

npm i -g project-gendiff

Run

$ gendiff --help
Usage: gendiff [options] <firstConfig> <secondConfig>

Compares two configuration files and shows a difference.

Options:
-V, --version        output the version number
-f, --format [type]  Output format (default: "stylish")
-h, --help           output usage information

Examples

flat file

file1:

{
  "host": "hexlet.io",
  "timeout": 50,
  "proxy": "123.234.53.22",
  "follow": false
}

file2:

{
  "timeout": 20,
  "verbose": true,
  "host": "hexlet.io"
}

run:

gendiff 'file1.json' 'file2.json'

run:

gendiff 'file1.yml' 'file2.yml'

files with nested structure with different formats

Purpose

This is an application implemented as part of the second project when studying the profession of a Javascript developer on hexlet.io . The second project is a logical development of the first It captures most of the syntactic capabilities of js and uses a more complex architecture. Requirements:

• learn how to create full-fledged CLI applications (command-line interface), with parsing of input parameters, validation, and help generation;
• understand json, yaml, ini data formats - understand the structure, learn how to parse in js and back;
• work with trees - traversal, transformation, formation of AST (abstract syntactic tree) - a bit of code boiling the brain;
• get to know and put into practice the architectural principles of 'Facade', 'Adapter';
• implement subtype polymorphism in practice;
• make the whole project in a functional style.