Crate ups

ups

Rust implementation of a UPS Patcher

Usage

Apply UPS patch:

use ups::UpsPatch;
use std::fs::File;
use std::io::{Read, Write};

//Loading the contents of the source and patch files
let mut  source_file_content: Vec<u8> = vec![];
let mut  patch_file_content: Vec<u8> = vec![];
let mut  source_file = File::open("path/to/source/file")?;
source_file.read_to_end(&mut source_file_content);
let mut patch_file = File::open("path/to/patch/file")?;
patch_file.read_to_end(&mut patch_file_content);

//Actually applying the patch
let patch = UpsPatch::load(patch_file_content)?;
let patched_file_content = patch.apply_to(source_file_content);
//Saving the target file contents to a file
let mut target_file = File::open("path/to/target/file")?;
target_file.write_all(&*patched_file_content);

Create UPS Patch

use ups::UpsPatch;
use std::fs::File;
use std::io::{Read, Write};
//Loading the contents of the source and patch files

let mut  source_file_content: Vec<u8> = vec![];
let mut  target_file_content: Vec<u8> = vec![];
let mut  source_file = File::open("path/to/source/file")?;
source_file.read_to_end(&mut source_file_content);
let mut target_file = File::open("path/to/patch/file")?;
target_file.read_to_end(&mut target_file_content);

//creating the patch into a variable
let patch = UpsPatch::create(&source_file_content, &target_file_content);
//Check if the patch is made for the source patch
if patch.file_is_source(&source_file_content) {
    //Actually applying the patch
    let patch_file_content = patch.get_patch_file_contents();
    //Saving the target file contents to a file
    let mut target_file = File::open("path/to/target/file")?;
    target_file.write_all(&*patch_file_content);
}else{
    println!("This patch isn't intended for the given source")
}

Structs

UpsPatch

Represents a ups patch