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|
module CPM.Repository
( Repository
, emptyRepository, allPackages, pkgsToRepository
, warnIfRepositoryOld, readRepositoryFrom
, findAllVersions, findVersion, findLatestVersion
, searchPackages, listPackages
, useUpdateHelp, cleanRepositoryCache
, readPackageFromRepository
, repositoryCacheFilePrefix
) where
import Char ( toLower )
import Directory
import Either
import FilePath
import IO
import IOExts ( readCompleteFile )
import List
import ReadShowTerm ( showQTerm, readQTerm, showTerm, readUnqualifiedTerm )
import System ( exitWith, system )
import Time
import CPM.Config ( Config, repositoryDir )
import CPM.ConfigPackage ( packageVersion )
import CPM.ErrorLogger
import CPM.Package
import CPM.FileUtil ( checkAndGetVisibleDirectoryContents
, copyDirectory, inDirectory
, quote, whenFileExists, removeDirectoryComplete )
import CPM.Resolution ( isCompatibleToCompiler )
data Repository = Repository [Package]
emptyRepository :: Repository
emptyRepository = Repository []
allPackages :: Repository -> [Package]
allPackages (Repository ps) = ps
pkgsToRepository :: [Package] -> Repository
pkgsToRepository ps = Repository ps
findAllVersions :: Repository -> String -> Bool -> [Package]
findAllVersions (Repository ps) p pre =
sortedByVersion $ preFiltered $ sameName ps
where
sortedByVersion = sortBy (\a b -> (version a) `vgt` (version b))
preFiltered = filter filterPre
sameName = filter ((== p) . name)
filterPre p' = pre || (not . isPreRelease . version) p'
searchPackages :: Repository -> Bool -> Bool -> String -> [[Package]]
searchPackages (Repository ps) searchmod searchexec searchterm =
map sortedByVersion (groupBy (\a b -> name a == name b) allResults)
where
allResults = let s = lowerS searchterm
in if searchmod
then filter (\p -> searchterm `elem` exportedModules p) ps
else if searchexec
then filter (\p -> s `isInfixOf`
(lowerS $ execOfPackage p)) ps
else filter (matches s) ps
matches q p = q `isInfixOf` (lowerS $ name p) ||
q `isInfixOf` (lowerS $ synopsis p) ||
q `isInfixOf` (lowerS $ unwords (exportedModules p))
sortedByVersion = sortBy (\a b -> version a `vgt` version b)
lowerS = map toLower
listPackages :: Repository -> [[Package]]
listPackages (Repository ps) =
map sortedByVersion (groupBy (\a b -> name a == name b) ps)
where
sortedByVersion = sortBy (\a b -> (version a) `vgt` (version b))
findLatestVersion :: Config -> Repository -> String -> Bool -> Maybe Package
findLatestVersion cfg repo pn pre =
case filter (isCompatibleToCompiler cfg) (findAllVersions repo pn pre) of
[] -> Nothing
(p:_) -> Just p
findVersion :: Repository -> String -> Version -> Maybe Package
findVersion repo pn v =
maybeHead $ filter ((== v) . version) $ findAllVersions repo pn True
where maybeHead [] = Nothing
maybeHead (x:_) = Just x
warnIfRepositoryOld :: Config -> IO ()
warnIfRepositoryOld cfg = do
let updatefile = repositoryDir cfg </> "README.md"
updexists <- doesFileExist updatefile
if updexists
then do
utime <- getModificationTime updatefile
ctime <- getClockTime
let warntime = addDays 10 utime
when (compareClockTime ctime warntime == GT) $ do
let timediff = clockTimeToInt ctime - clockTimeToInt utime
days = timediff `div` (60*60*24)
infoMessage $ "Warning: your repository index is older than " ++
show days ++ " days.\n" ++ useUpdateHelp
else infoMessage $ "Warning: your repository index is not up-to-date.\n" ++
useUpdateHelp
useUpdateHelp :: String
useUpdateHelp = "Use 'cypm update' to download the newest package index."
readRepositoryFrom :: String -> IO Repository
readRepositoryFrom path = do
(repo, repoErrors) <- tryReadRepositoryFrom path
if null repoErrors
then return repo
else do errorMessage "Problems while reading the package index:"
mapM_ errorMessage repoErrors
exitWith 1
tryReadRepositoryFrom :: String -> IO (Repository, [String])
tryReadRepositoryFrom path = do
debugMessage $ "Reading repository index from '" ++ path ++ "'..."
repos <- checkAndGetVisibleDirectoryContents path
pkgPaths <- mapIO getDir (map (path </>) repos) >>= return . concat
verDirs <- mapIO checkAndGetVisibleDirectoryContents pkgPaths
verPaths <- return $ concatMap (\ (d, p) -> map (d </>) p)
$ zip pkgPaths verDirs
specPaths <- return $ map (</> "package.json") verPaths
infoMessage "Reading repository index..."
specs <- mapIO readPackageFile specPaths
when (null (lefts specs)) $ debugMessage "Finished reading repository"
return $ (Repository $ rights specs, lefts specs)
where
readPackageFile f = do
spec <- liftM readPackageSpec $ readCompleteFile f
seq (id $!! spec) (putChar '.' >> hFlush stdout)
return $ case spec of
Left err -> Left $ "Problem reading '" ++ f ++ "': " ++ err
Right s -> Right s
getDir d = doesDirectoryExist d >>= \b -> return $ if b then [d] else []
repositoryCacheFilePrefix :: Config -> String
repositoryCacheFilePrefix cfg = repositoryDir cfg </> "REPOSITORY_CACHE"
cleanRepositoryCache :: Config -> IO ()
cleanRepositoryCache cfg = do
debugMessage $ "Cleaning repository cache '" ++
repositoryCacheFilePrefix cfg ++ "*'"
system $ "/bin/rm -f " ++ quote (repositoryCacheFilePrefix cfg) ++ "*"
done
readPackageFromRepository :: Config -> Package -> IO (ErrorLogger Package)
readPackageFromRepository cfg pkg =
let pkgdir = repositoryDir cfg </> name pkg </> showVersion (version pkg)
in loadPackageSpec pkgdir
|