mirrors/git-annex
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages 1 Wiki Activity Actions

use SHA256 by default

Browse source 
To get old behavior, add a .gitattributes containing: * annex.backend=WORM

I feel that SHA256 is a better default for most people, as long as their
systems are fast enough that checksumming their files isn't a problem.
git-annex should default to preserving the integrity of data as well as git
does. Checksum backends also work better with editing files via
unlock/lock.

I considered just using SHA1, but since that hash is believed to be somewhat
near to being broken, and git-annex deals with large files which would be a
perfect exploit medium, I decided to go to a SHA-2 hash.

SHA512 is annoyingly long when displayed, and git-annex displays it in a
few places (and notably it is shown in ls -l), so I picked the shorter
hash. Considered SHA224 as it's even shorter, but feel it's a bit weird.

I expect git-annex will use SHA-3 at some point in the future, but
probably not soon!

Note that systems without a sha256sum (or sha256) program will fall back to
defaulting to SHA1.
This commit is contained in:
Joey Hess 2011-11-04 15:21:45 -04:00
parent 1089e85d48
commit ef3457196a
8 changed files with 37 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

3
debian/changelog vendored
View file

@ -1,5 +1,8 @@
git-annex (3.20111026) UNRELEASED; urgency=low
* The default backend used when adding files to the annex is changed
from WORM to SHA256.
To get old behavior, add a .gitattributes containing: * annex.backend=WORM
* Sped up some operations on remotes that are on the same host.
* copy --to: Fixed leak when copying many files to a remote on the same
host.