Security News
The Unpaid Backbone of Open Source: Solo Maintainers Face Increasing Security Demands
Solo open source maintainers face burnout and security challenges, with 60% unpaid and 60% considering quitting.
Node native addon module (C/C++) for Rabin fingerprinting data streams.
Uses the implementation of Rabin fingerprinting from LBFS.
Rabin fingerprinting is useful for finding the chunks of a file that differ from a previous version. It's one implementation of a technique called "Content-defined chunking", meaning the chunk boundaries are determinstic to the content (as opposed to "fixed-sized chunking").
Theres a JavaScript API and an accompanying command-line tool.
var createRabin = require('rabin')
createRabin
can be used to create multiple fingerprinting streams
var rabin = createRabin()
rabin
is a duplex stream. You write raw data in, and buffers chunked by rabin fingerprints will be written out.
// require and create an instance
var rabin = require('rabin')()
// pipe some data in
var rs = fs.createReadStream('somefile.dat')
rs.pipe(rabin)
// handle output chunks
rabin.on('data', function (chunk) {
// chunks are created by taking your input data
// and splitting on each rabin fingerprint found
})
$ npm install rabin -g
$ rabin myfile.txt --bits=14 --min=8192 --max=32768 # defaults
{"length":12182,"offset":0,"hash":"5df6245b5897336ebf611d7f10fb90eea2d63c5b9ec9ad76dfb1ac72b8249dcb"}
{"length":13190,"offset":12182,"hash":"67d5aaac9cf7b8432cb3c8071d726dc38f1138957c30719f8b166116a90950a1"}
{"length":11609,"offset":25372,"hash":"976a0e3dc43de3abdf50b984a102c5fb7c2550e3dc5e44e4a8f7d4241276683b"}
{"length":10010,"offset":36981,"hash":"7145d10f93ea03e6c8b4dd5ab148e2c3c08f9c71bf71c7559dffdfcef48112c1"}
{"length":13623,"offset":46991,"hash":"76470d5047f9fb31bd75364d90355fdbf913aaa1df934251f43c894f01381f1b"}
{"length":8197,"offset":60614,"hash":"88abce05bc75f72cdafeabd5125eb46fa8f73eab2d75a29076aeb3f99ef35548"}
{"length":16242,"offset":68811,"hash":"08d60789c1e901d6a8e474aeb5de4746af1648e7f3a4ac7a3dba87d9e73fca56"}
{"length":14947,"offset":85053,"hash":"4224e6f4361fa8bdefb9d8e10ebd046e2869af2c44ea7e84c7efaeedd5423b30"}
average 12500
FAQs
node native bindings to a C rabin fingerprinting algorithm
The npm package rabin receives a total of 345 weekly downloads. As such, rabin popularity was classified as not popular.
We found that rabin demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 12 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Solo open source maintainers face burnout and security challenges, with 60% unpaid and 60% considering quitting.
Security News
License exceptions modify the terms of open source licenses, impacting how software can be used, modified, and distributed. Developers should be aware of the legal implications of these exceptions.
Security News
A developer is accusing Tencent of violating the GPL by modifying a Python utility and changing its license to BSD, highlighting the importance of copyleft compliance.