https://github.com/abhiyerra/rrdiff

Ruby bindings to librsync and to the rdiff tool.
https://github.com/abhiyerra/rrdiff

Last synced: about 11 hours ago
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Ruby bindings to librsync and to the rdiff tool.

• Host: GitHub
• URL: https://github.com/abhiyerra/rrdiff
• Owner: abhiyerra
• License: mit
• Created: 2009-12-28T14:45:05.000Z (almost 15 years ago)
• Default Branch: master
• Last Pushed: 2019-01-10T20:56:59.000Z (over 5 years ago)
• Last Synced: 2024-05-21T00:20:21.634Z (5 months ago)
• Language: Ruby
• Homepage:
• Size: 46.9 KB
• Stars: 24
• Watchers: 3
• Forks: 15
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# rrdiff - Ruby bindings to librsync/rdiff.

Lets say you have two files oldfile and newfile where newfile

is a modified version of oldfile. We want to be able to apply

the change to oldfile such that it becomes newfile.

The first process is to create a signature for the oldfile. The

parameters are the original file and where you want to store

the signature file.

    RRDiff.signature("oldfile", "sigfile")

Then from the newfile and the sigfile generate a delta. Deltafile

is where the delta is stored.

    RRDiff.delta("newfile", "sigfile", "deltafile")

Finally, apply the deltafile to the oldfile to create the patchedfile

which should be equivalent to newfile.

    RRDiff.patch("oldfile", "deltafile", "patchedfile")

There is also a File interface, that you can pass File instances. 

It will return Tempfiles.

    RRDiff::File.signature(oldfile) #=> 

    RRDiff::File.delta(sigfile, newfile) #=> 

    RRDiff::File.diff(oldfile, newfile) #=> 

    RRDiff::File.patch(oldfile, deltafile) #=>