compactor

This is the practice project to explore various golang concepts. In this project we are building Compression Tool.

NOTE: This project is part of the Coding Challenge Repo. Building A Huffman Encoder/Decoder

Prerequisite:

Download the sample test file from here

Steps:

• Accept filename as input and check if the file is valid and readable or not. If not throw error.

• Determine the frequency of every character in the input file.

• Build a binary tree from the frequency

• Generate a prefix code table from the tree

• Encode the text using code table.

• Encode the tree - we'll need to include this in this in the output file so we can decode it.

• Write the encoded tree and text to an output file.

• Add the description function

• Gloss-up the application using Charm tools

Usage:

Download binary respective the device from here

Then extract from the archived folder.

Using Compactor CLI You can perform 2 operations in the compactor CLI

• Compression
  • Default operation, no need to pass argument for compression apart from required flags:

    • ./compactor -h
      

• Decompression
  • For decompressing the compressed file you need to pass dec arg with required flags:

    • ./compactor dec -h
      

Flags:

• -h: This is the help flag to explain all the arguments and functionality of the operation.
• -i: [Required] This flag is required and will be pointing to the file that needs to be compressed or the compressed file which needs to be decompressed.
• -o: [Optional] This flag is optional, if not provided it will use the -i path to determine the output file