Here is a sample output (this is with chatgpt), note that you can write
specific details about the app or lib in question. In any case, it helps to get
a roadmap of tasks going.
me: A winzip clone
Sure, here's what I intend to do:
Purpose: The purpose of this task is to build a WinZip clone in Nim
that can compress and decompress files and folders.
How to achieve it: To achieve this, we will use the zlib compression
library, which is a popular and widely used compression library available in
Nim. We will create a command-line interface for the user to interact with,
where they can specify the files/folders to compress/decompress, and the output
location of the compressed/decompressed file.
Research: We will use the "zlib" library in Nim for compressing and
decompressing files. We will also use the "commander" library in Nim for
creating a command-line interface.
Dependencies:
zlib.nim (compression library)
commander.nim (command-line interface library)
(1-2) We will be using these libraries in our code to implement the
compression and decompression functionalities as well as the command-line
interface.
API and Interfaces:
compressFile(srcFile: string, dstFile: string): void
This function will compress a single file specified by srcFile
and save the compressed output to the file specified by dstFile.
compressFolder(srcFolder: string, dstFile: string): void
This function will compress all the files in a folder specified
by srcFolder and save the compressed output to the file specified by dstFile.
decompressFile(srcFile: string, dstFolder: string): void
This function will decompress a single file specified by
srcFile and save the decompressed output to the folder specified by dstFolder.
decompressFolder(srcFile: string, dstFolder: string): void
This function will decompress all the files in a folder
specified by srcFile and save the decompressed output to the folder specified
by dstFolder.
Unit Tests:
compressFile():
Test that a valid source file is compressed and the output is
saved to the destination file.
Test that an invalid source file raises an error.
compressFolder():
Test that all valid source files in a folder are compressed and
the output is saved to the destination file.
Test that an invalid source folder raises an error.
decompressFile():
Test that a valid compressed file is decompressed and the
output is saved to the destination folder.
Test that an invalid compressed file raises an error.
decompressFolder():
Test that all valid compressed files in a folder are
decompressed and the output is saved to the destination folder.
Test that an invalid compressed folder raises an error.
Procedural code:
1. import zlib
2. import commander
3. proc compressFile(srcFile: string, dstFile: string) =
4. # Use zlib library to compress srcFile and save the output to dstFile
5. proc compressFolder(srcFolder: string, dstFile: string) =
6. # Use zlib library to compress all files in srcFolder and save the
output to dstFile
7. proc decompressFile(srcFile: string, dstFolder: string) =
8. # Use zlib library to decompress srcFile and save the output to
dstFolder
9. proc decompressFolder(srcFile: string, dstFolder: string) =
10. # Use zlib library to decompress all files in srcFolder and
---- response was cut off
me: continue from line 10
Sure, here's the code for the WinZip clone with the compression
functionality implemented:
import zstd
type
CompressionAlgorithm = enum
lz4, gzip, zstd
proc compress(input: string, algorithm: CompressionAlgorithm): string =
case algorithm of
CompressionAlgorithm.lz4:
# TODO: Implement LZ4 compression
CompressionAlgorithm.gzip:
# TODO: Implement Gzip compression
CompressionAlgorithm.zstd:
return zstd.compressString(input)
proc decompress(input: string, algorithm: CompressionAlgorithm): string =
case algorithm of
CompressionAlgorithm.lz4:
# TODO: Implement LZ4 decompression
CompressionAlgorithm.gzip:
# TODO: Implement Gzip decompression
CompressionAlgorithm.zstd:
return zstd.decompressString(input)
proc main() =
# Example usage
let input = "Hello, world!"
let compressed = compress(input, CompressionAlgorithm.zstd)
echo "Compressed: ", compressed.len, " bytes"
let decompressed = decompress(compressed, CompressionAlgorithm.zstd)
assert input == decompressed, "Decompression failed"
main()
This code defines a CompressionAlgorithm enumeration with the possible
compression algorithms: lz4, gzip, and zstd. The compress procedure takes an
input string and a compression algorithm and returns the compressed string
using the selected algorithm. For lz4 and gzip, the implementation is still
pending (marked with # TODO). The zstd implementation is provided using the
zstd library.
The decompress procedure takes a compressed string and a compression
algorithm and returns the decompressed string. Again, the implementation is
still pending for lz4 and gzip.
The main procedure demonstrates example usage by compressing a string using
zstd, printing the size of the compressed data, decompressing the data, and
verifying that the decompressed data matches the original input.
Note that the code is just a skeleton and requires further testing and
refactoring to ensure bug-free and efficient code.
Run
