i0rdan/file-manager-nodejs

File Manager

Assignment: File Manager

Technical requirements

• No external dependencies should be required
• Use 18 LTS version of Node.js
• The program is started by npm-script start in following way:

npm run start -- --username=your_username

List of operations and their syntax:

• Navigation & working directory (nwd)
  • Go upper from current directory (when you are in the root folder this operation shouldn't change working directory)

  up

  • Go to dedicated folder from current directory (path_to_directory can be relative or absolute)

  cd path_to_directory

  • Print in console list of all files and folders in current directory. List should contain:
    • list should contain files and folder names (for files - with extension)
    • folders and files are sorted in alphabetical order ascending, but list of folders goes first
    • type of directory content should be marked explicitly (e.g. as a corresponding column value)

  ls

  Example of how ls command output may look like
  
• Basic operations with files
  • Read file and print it's content in console (should be done using Readable stream):

  cat path_to_file

  • Create empty file in current working directory:

  add new_file_name

  • Rename file (content should remain unchanged):

  rn path_to_file new_filename

  • Copy file (should be done using Readable and Writable streams):

  cp path_to_file path_to_new_directory

  • Move file (same as copy but initial file is deleted, copying part should be done using Readable and Writable streams):

  mv path_to_file path_to_new_directory

  • Delete file:

  rm path_to_file

• Operating system info (prints following information in console)
  • Get EOL (default system End-Of-Line) and print it to console

  os --EOL

  • Get host machine CPUs info (overall amount of CPUS plus model and clock rate (in GHz) for each of them) and print it to console

  os --cpus

  • Get home directory and print it to console

  os --homedir

  • Get current system user name (Do not confuse with the username that is set when the application starts) and print it to console

  os --username

  • Get CPU architecture for which Node.js binary has compiled and print it to console

  os --architecture

• Hash calculation
  • Calculate hash for file and print it into console

  hash path_to_file

• Compress and decompress operations
  • Compress file (using Brotli algorithm, should be done using Streams API)

  compress path_to_file path_to_destination

  • Decompress file (using Brotli algorithm, should be done using Streams API)

  decompress path_to_file path_to_destination

  NB! After decompressing of previously compressed file result should not differ with originally compressed file