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path: root/Utility/ExternalSHA.hs
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* fsck: When checksumming a file fails due to a hardware fault, the file is ↵Gravatar Joey Hess2015-05-27
| | | | now moved to the bad directory, and the fsck proceeds. Before, the fsck immediately failed.
* improve error message when checksum command exits nonzeroGravatar Joey Hess2015-05-27
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* couple of AMP warnings I missed beforeGravatar Joey Hess2015-05-10
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* more {-# OPTIONS_GHC -fno-warn-tabs #-} ... Forcing people who have what is ↵Gravatar Joey Hess2015-05-10
| | | | merely a difference of opinion to you to do this is a bit of an asshole move. Just saying.
* update my email address and homepage urlGravatar Joey Hess2015-01-21
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* fix some mixed space+tab indentationGravatar Joey Hess2014-10-09
| | | | | | | | | This fixes all instances of " \t" in the code base. Most common case seems to be after a "where" line; probably vim copied the two space layout of that line. Done as a background task while listening to episode 2 of the Type Theory podcast.
* deal with process-1.2.0.0 throwing an exception when program DNE (may only ↵Gravatar Joey Hess2014-07-13
| | | | | | | | | | | | | | | fix the tip of the iceberg) Configure crashed on systems with that process and without eg, sha256sum. The rest of the code in configure looks to work ok, since it uses sh -c to probe for commands, and sh is always in path so it works. Dunno about all the rest of git-annex. Not a huge amount of external program use, other than git, so perhaps this won't be a large pain. Note that boolSystem can throw an exception now if the program doesn't exist. Could easily be changed back to False.
* export CreateProcess fields from Utility.ProcessGravatar Joey Hess2014-06-10
| | | | update code to avoid cwd and env redefinition warnings
* relicense general utility library code to BSDGravatar Joey Hess2014-05-10
| | | | | Omitted a couple of files what have had significant contributions from others.
* Use cryptohash rather than SHA for hashing.Gravatar Joey Hess2013-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a massive win on OSX, which doesn't have a sha256sum normally. Only use external hash commands when the file is > 1 mb, since cryptohash is quite close to them in speed. SHA is still used to calculate HMACs. I don't quite understand cryptohash's API for those. Used the following benchmark to arrive at the 1 mb number. 1 mb file: benchmarking sha256/internal mean: 13.86696 ms, lb 13.83010 ms, ub 13.93453 ms, ci 0.950 std dev: 249.3235 us, lb 162.0448 us, ub 458.1744 us, ci 0.950 found 5 outliers among 100 samples (5.0%) 4 (4.0%) high mild 1 (1.0%) high severe variance introduced by outliers: 10.415% variance is moderately inflated by outliers benchmarking sha256/external mean: 14.20670 ms, lb 14.17237 ms, ub 14.27004 ms, ci 0.950 std dev: 230.5448 us, lb 150.7310 us, ub 427.6068 us, ci 0.950 found 3 outliers among 100 samples (3.0%) 2 (2.0%) high mild 1 (1.0%) high severe 2 mb file: benchmarking sha256/internal mean: 26.44270 ms, lb 26.23701 ms, ub 26.63414 ms, ci 0.950 std dev: 1.012303 ms, lb 925.8921 us, ub 1.122267 ms, ci 0.950 variance introduced by outliers: 35.540% variance is moderately inflated by outliers benchmarking sha256/external mean: 26.84521 ms, lb 26.77644 ms, ub 26.91433 ms, ci 0.950 std dev: 347.7867 us, lb 210.6283 us, ub 571.3351 us, ci 0.950 found 6 outliers among 100 samples (6.0%) import Crypto.Hash import Data.ByteString.Lazy as L import Criterion.Main import Common testfile :: FilePath testfile = "/run/shm/data" -- on ram disk main = defaultMain [ bgroup "sha256" [ bench "internal" $ whnfIO internal , bench "external" $ whnfIO external ] ] sha256 :: L.ByteString -> Digest SHA256 sha256 = hashlazy internal :: IO String internal = show . sha256 <$> L.readFile testfile external :: IO String external = do s <- readProcess "sha256sum" [testfile] return $ fst $ separate (== ' ') s
* configure: Better checking that sha commands output in the desired format.Gravatar Joey Hess2013-05-08
Run the same code git-annex used to get the sha, including its sanity checking. Much better than old grep. Should detect FreeBSD systems with sha commands that output in stange format.