README
bsdiff-nodejs
An binary diff and patch library based on bsdiff algorithm for NodeJS (Windows, Mac, Linux)
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Installation
Install as a dependency for your project (need python 2.x):
npm install --save bsdiff-nodejs
Usage
const bsdiff = require('bsdiff-nodejs');
bsdiff.diff(oldFile, newFile, patchFile, function(result, err) {}); // Async
bsdiff.patch(oldfile, newfile, patchfile, function(result, err) {}); // Async
bsdiff.diffSync(oldFile, newFile, patchFile); // Sync
bsdiff.patchSync(oldfile, newfile, patchfile); // Sync
For example:
const fs = require('fs');
const path = require('path');
const oldFile = path.join(__dirname, 'resources/react-0.3-stable.zip');
const newFile = path.join(__dirname, 'resources/react-0.4-stable.zip');
const patchFile = path.join(__dirname, 'resources/react.patch');
const generatedFile = path.join(__dirname, 'resources/react-generated.zip');
async function asyncCall() {
await bsdiff.diff(oldFile, newFile, patchFile, function (result) {
console.log('diff:' + String(result).padStart(4) + '%');
});
await bsdiff.patch(oldFile, generatedFile, patchFile, function (result) {
console.log('patch:' + String(result).padStart(4) + '%');
});
}
asyncCall();
License
The original algorithm and implementation was developed by Colin Percival. The algorithm is detailed in his paper, Naïve Differences of Executable Code. For more information, visit his website at http://www.daemonology.net/bsdiff/.
Copyright 2003-2005 Colin Percival
MIT © Exoway