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

Utility/DottedVersion.hs

@@ -0,0 +1,36 @@
+{- dotted versions, such as 1.0.1
+ -
+ - Copyright 2011-2014 Joey Hess <joey@kitenet.net>
+ -
+ - License: BSD-2-clause
+ -}
+
+module Utility.DottedVersion where
+
+import Common
+
+data DottedVersion = DottedVersion String Integer
+	deriving (Eq)
+
+instance Ord DottedVersion where
+	compare (DottedVersion _ x) (DottedVersion _ y) = compare x y
+
+instance Show DottedVersion where
+	show (DottedVersion s _) = s
+
+{- To compare dotted versions like 1.7.7 and 1.8, they are normalized to
+ - a somewhat arbitrary integer representation. -}
+normalize :: String -> DottedVersion
+normalize v = DottedVersion 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

Utility/Url.hs

@@ -191,9 +191,18 @@ download' quiet url file uo =
 	wget = go "wget" $ headerparams ++ quietopt "-q" ++ wgetparams
 	{- Regular wget needs --clobber to continue downloading an existing
 	 - file. On Android, busybox wget is used, which does not
-	 - support, or need that option. -}
+	 - support, or need that option.
+	 -
+	 - When the wget version is new enough, pass options for
+	 - a less cluttered download display.
+	 -}
 #ifndef __ANDROID__
-	wgetparams = [Params "--clobber -c -O"]
+	wgetparams = catMaybes
+		[ if Build.SysConfig.wgetquietprogress
+			then Just $ Params "-q --show-progress"
+			else Nothing
+		, Just $ Params "--clobber -c -O"
+		]
 #else
 	wgetparams = [Params "-c -O"]
 #endif