Use wget -q --show-progress for less verbose wget output, when built with wget 1.16.

Git/Version.hs

@@ -5,18 +5,16 @@
  - Licensed under the GNU GPL version 3 or higher.
  -}
 
-module Git.Version where
+module Git.Version (
+	installed,
+	normalize,
+	GitVersion,
+) where
 
 import Common
+import Utility.DottedVersion
 
-data GitVersion = GitVersion String Integer
-	deriving (Eq)
-
-instance Ord GitVersion where
-	compare (GitVersion _ x) (GitVersion _ y) = compare x y
-
-instance Show GitVersion where
-	show (GitVersion s _) = s
+type GitVersion = DottedVersion
 
 installed :: IO GitVersion
 installed = normalize . extract <$> readProcess "git" ["--version"]
@@ -24,20 +22,3 @@ installed = normalize . extract <$> readProcess "git" ["--version"]
 	extract s = case lines s of
 		[] -> ""
 		(l:_) -> unwords $ drop 2 $ words l
-
-{- To compare dotted versions like 1.7.7 and 1.8, they are normalized to
- - a somewhat arbitrary integer representation. -}
-normalize :: String -> GitVersion
-normalize v = GitVersion v $ 
-	sum $ mult 1 $ reverse $ extend precision $ take precision $
-		map readi $ split "." v
-  where
-	extend n l = l ++ replicate (n - length l) 0
-	mult _ [] = []
-	mult n (x:xs) = (n*x) : mult (n*10^width) xs
-	readi :: String -> Integer
-	readi s = case reads s of
-		((x,_):_) -> x
-		_ -> 0
-	precision = 10 -- number of segments of the version to compare
-	width = length "yyyymmddhhmmss" -- maximum width of a segment