133 lines
3.8 KiB
Haskell
133 lines
3.8 KiB
Haskell
module Property.Apt where
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import Data.Maybe
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import Control.Applicative
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import Data.List
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import System.IO
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import Control.Monad
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import Common
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import qualified Property.File as File
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import Property.File (Line)
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sourcesList :: FilePath
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sourcesList = "/etc/apt/sources.list"
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type Url = String
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type Section = String
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data Suite = Stable | Testing | Unstable | Experimental
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deriving Show
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showSuite :: Suite -> String
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showSuite Stable = "stable"
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showSuite Testing = "testing"
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showSuite Unstable = "unstable"
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showSuite Experimental = "experimental"
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debLine :: Suite -> Url -> [Section] -> Line
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debLine suite mirror sections = unwords $
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["deb", mirror, showSuite suite] ++ sections
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srcLine :: Line -> Line
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srcLine l = case words l of
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("deb":rest) -> unwords $ "deb-src" : rest
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_ -> ""
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stdSections :: [Section]
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stdSections = ["main", "contrib", "non-free"]
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debCdn :: Suite -> [Line]
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debCdn suite = [l, srcLine l]
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where
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l = debLine suite "http://cdn.debian.net/debian" stdSections
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{- Makes sources.list have a standard content using the mirror CDN,
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- with a particular Suite. -}
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stdSourcesList :: Suite -> Property
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stdSourcesList suite = setSourcesList (debCdn suite)
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`describe` ("standard sources.list for " ++ show suite)
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setSourcesList :: [Line] -> Property
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setSourcesList ls = sourcesList `File.hasContent` ls `onChange` update
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runApt :: [CommandParam] -> Property
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runApt ps = cmdProperty' "apt-get" ps env
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where
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env =
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[ ("DEBIAN_FRONTEND", "noninteractive")
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, ("APT_LISTCHANGES_FRONTEND", "none")
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]
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update :: Property
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update = runApt [Param "update"]
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`describe` "apt update"
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upgrade :: Property
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upgrade = runApt [Params "-y dist-upgrade"]
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`describe` "apt dist-upgrade"
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type Package = String
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installed :: [Package] -> Property
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installed ps = check (isInstallable ps) go
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`describe` (unwords $ "apt installed":ps)
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where
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go = runApt $ [Param "-y", Param "install"] ++ map Param ps
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removed :: [Package] -> Property
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removed ps = check (or <$> isInstalled' ps) go
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`describe` (unwords $ "apt removed":ps)
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where
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go = runApt $ [Param "-y", Param "remove"] ++ map Param ps
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isInstallable :: [Package] -> IO Bool
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isInstallable ps = do
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l <- isInstalled' ps
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return $ any (== False) l && not (null l)
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isInstalled :: Package -> IO Bool
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isInstalled p = (== [True]) <$> isInstalled' [p]
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{- Note that the order of the returned list will not always
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- correspond to the order of the input list. The number of items may
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- even vary. If apt does not know about a package at all, it will not
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- be included in the result list. -}
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isInstalled' :: [Package] -> IO [Bool]
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isInstalled' ps = catMaybes . map parse . lines
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<$> readProcess "apt-cache" ("policy":ps)
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where
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parse l
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| "Installed: (none)" `isInfixOf` l = Just False
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| "Installed: " `isInfixOf` l = Just True
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| otherwise = Nothing
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autoRemove :: Property
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autoRemove = runApt [Param "-y", Param "autoremove"]
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`describe` "apt autoremove"
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unattendedUpgrades :: Bool -> Property
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unattendedUpgrades enabled =
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(if enabled then installed else removed) ["unattended-upgrades"]
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`onChange` reConfigure "unattended-upgrades"
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[("unattended-upgrades/enable_auto_updates" , "boolean", v)]
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`describe` ("unattended upgrades " ++ v)
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where
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v
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| enabled = "true"
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| otherwise = "false"
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{- Preseeds debconf values and reconfigures the package so it takes
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- effect. -}
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reConfigure :: Package -> [(String, String, String)] -> Property
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reConfigure package vals = reconfigure `requires` setselections
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`describe` ("reconfigure " ++ package)
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where
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setselections = Property "preseed" $ makeChange $
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withHandle StdinHandle createProcessSuccess
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(proc "debconf-set-selections" []) $ \h -> do
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forM_ vals $ \(template, tmpltype, value) ->
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hPutStrLn h $ unwords [package, template, tmpltype, value]
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hClose h
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reconfigure = cmdProperty "dpkg-reconfigure" [Param "-fnone", Param package]
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