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