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module CPM.PackageCache.Global
( GlobalCache
, findAllVersions
, findNewestVersion
, findVersion
, packageInstalled
, installedPackageDir
, readGlobalCache, readInstalledPackagesFromDir
, allPackages
, copyPackage
, installMissingDependencies
, acquireAndInstallPackage
, acquireAndInstallPackageFromSource
, tryFindPackage
, missingPackages
, installFromZip
, checkoutPackage
, uninstallPackage
, emptyCache
) where
import Directory
import Either
import IOExts ( readCompleteFile )
import List
import Maybe (isJust)
import FilePath
import CPM.Config ( Config, packageInstallDir, packageTarFilesURLs )
import CPM.ErrorLogger
import CPM.FileUtil ( cleanTempDir, copyDirectory, inTempDir
, recreateDirectory, inDirectory
, removeDirectoryComplete, tempDir, whenFileExists
, checkAndGetVisibleDirectoryContents, quote )
import CPM.Package
import CPM.Package.Helpers ( installPackageSourceTo )
import CPM.Repository
data GlobalCache = GlobalCache [Package]
emptyCache :: GlobalCache
emptyCache = GlobalCache []
allPackages :: GlobalCache -> [Package]
allPackages (GlobalCache ps) = ps
findAllVersions :: GlobalCache -> String -> Bool -> [Package]
findAllVersions (GlobalCache ps) p pre = sortBy pkgGt
$ filter filterPre
$ filter ((== p) . name) ps
where
filterPre p' = pre || (not . isPreRelease . version) p'
pkgGt :: Package -> Package -> Bool
pkgGt a b = version a `vgt` version b
findNewestVersion :: GlobalCache -> String -> Maybe Package
findNewestVersion db p = if length pkgs > 0
then Just $ head pkgs
else Nothing
where
pkgs = sortBy pkgGt $ findAllVersions db p False
findVersion :: GlobalCache -> String -> Version -> Maybe Package
findVersion (GlobalCache ps) p v =
if null hits
then Nothing
else Just $ head hits
where
hits = filter ((== v) . version) $ filter ((== p) . name) ps
isPackageInstalled :: GlobalCache -> Package -> Bool
isPackageInstalled db p = isJust $ findVersion db (name p) (version p)
installedPackageDir :: Config -> Package -> String
installedPackageDir cfg pkg = packageInstallDir cfg </> packageId pkg
packageInstalled :: Config -> Package -> IO Bool
packageInstalled cfg pkg =
doesDirectoryExist (installedPackageDir cfg pkg)
copyPackage :: Config -> Package -> String -> IO (ErrorLogger ())
copyPackage cfg pkg dir = do
exists <- doesDirectoryExist srcDir
if not exists
then failIO $ "Package '" ++ packageId pkg ++ "' not installed"
else copyDirectory srcDir dir >> succeedIO ()
where
srcDir = installedPackageDir cfg pkg
acquireAndInstallPackage :: Config -> Package -> ErrorLoggerIO ()
acquireAndInstallPackage cfg pkg = do
pkgDirExists <- execIO $ doesDirectoryExist (installedPackageDir cfg pkg)
if pkgDirExists
then logMsg Info $ "Package '" ++ packageId pkg ++
"' already installed, skipping"
else tryInstallFromURLs (packageTarFilesURLs cfg)
where
tryInstallFromURLs [] = toELM $ failIO "No URLs for installations"
tryInstallFromURLs (url:urls) = do
let stdurl = url ++ "/" ++ packageId pkg ++ ".tar.gz"
logMsg Info $ "Installing package from " ++ stdurl
(_,err) <- execIO $ installPackageSourceTo pkg (Http stdurl)
(packageInstallDir cfg)
case err of
Left _ -> if null urls
then toELM $ failIO downloadError
else tryInstallFromURLs urls
Right _ -> toELM $ acquireAndInstallPackageFromSource cfg pkg
downloadError =
"Package downloading failed. Use option '-v debug' for more infos."
acquireAndInstallPackageFromSource :: Config -> Package -> IO (ErrorLogger ())
acquireAndInstallPackageFromSource cfg reppkg =
readPackageFromRepository cfg reppkg |>= \pkg ->
case source pkg of
Nothing -> failIO $ "No source specified for " ++ packageId pkg
Just s -> log Info ("Installing package '" ++ packageId pkg ++ "'...") |>
installFromSource cfg pkg s
installFromSource :: Config -> Package -> PackageSource -> IO (ErrorLogger ())
installFromSource cfg pkg pkgsource = do
pkgDirExists <- doesDirectoryExist pkgDir
if pkgDirExists
then
log Info $ "Package '" ++ packageId pkg ++ "' already installed, skipping"
else
log Info ("Installing package from " ++ showSourceOfPackage pkg) |>
installPackageSourceTo pkg pkgsource (packageInstallDir cfg)
where
pkgDir = installedPackageDir cfg pkg
installFromZip :: Config -> String -> IO (ErrorLogger ())
installFromZip cfg zip = do
t <- tempDir
recreateDirectory (t </> "installtmp")
absZip <- getAbsolutePath zip
c <- inTempDir $ showExecCmd $ "unzip -qq -d installtmp " ++ quote absZip
if c == 0
then
loadPackageSpec (t </> "installtmp") |>= \pkgSpec ->
log Debug ("ZIP contains " ++ packageId pkgSpec) |>
(cleanTempDir >> succeedIO ()) |>
installFromSource cfg pkgSpec (FileSource zip)
else cleanTempDir >> failIO "failed to extract ZIP file"
installMissingDependencies :: Config -> GlobalCache -> [Package]
-> ErrorLoggerIO ()
installMissingDependencies cfg gc deps = whenM (length missing > 0) $ do
logMsg Info logmsg
mapM_ (acquireAndInstallPackage cfg) missing
where
missing = filter (not . isPackageInstalled gc) deps
logmsg = "Installing missing dependencies " ++
intercalate "," (map packageId missing)
missingPackages :: GlobalCache -> [Package] -> [Package]
missingPackages gc = filter (not . isPackageInstalled gc)
checkoutPackage :: Config -> Package -> ErrorLoggerIO ()
checkoutPackage cfg pkg = do
sexists <- execIO $ doesDirectoryExist pkgDir
texists <- execIO $ doesDirectoryExist codir
if texists
then logMsg Error $
"Local package directory '" ++ codir ++ "' already exists."
else if sexists
then do execIO $ copyDirectory pkgDir codir
logMsg Info logmsg
else logMsg Error $ "Package '" ++ pkgId ++ "' is not installed."
where
pkgId = packageId pkg
pkgDir = installedPackageDir cfg pkg
codir = name pkg
logmsg = "Package '" ++ pkgId ++ "' checked out into directory '" ++
codir ++ "'."
uninstallPackage :: Config -> String -> Version -> ErrorLoggerIO ()
uninstallPackage cfg pkgname ver = do
let pkgId = pkgname ++ "-" ++ showVersion ver
pkgDir = packageInstallDir cfg </> pkgId
exists <- execIO $ doesDirectoryExist pkgDir
if exists
then do execIO $ showExecCmd ("rm -Rf " ++ quote pkgDir)
logMsg Info $ "Package '" ++ pkgId ++ "' uninstalled."
else logMsg Info $ "Package '" ++ pkgId ++ "' is not installed."
tryFindPackage :: GlobalCache -> String -> Version -> IO (ErrorLogger Package)
tryFindPackage gc name ver = case findVersion gc name ver of
Just pkg -> succeedIO pkg
Nothing -> failIO $ "Package " ++ name ++ "-" ++ showVersion ver ++
" could not be found."
readGlobalCache :: Config -> Repository -> ErrorLoggerIO GlobalCache
readGlobalCache config repo = do
maybeGC <- execIO $
readInstalledPackagesFromDir repo $ packageInstallDir config
case maybeGC of
Left err -> failELM $ "Error reading global package cache: " ++ err
Right gc -> return gc
readInstalledPackagesFromDir :: Repository -> String
-> IO (Either String GlobalCache)
readInstalledPackagesFromDir repo path = do
debugMessage $ "Reading global package cache from '" ++ path ++ "'..."
pkgPaths <- checkAndGetVisibleDirectoryContents path
specs <- mapIO loadPackageSpecFromDir pkgPaths
if null (lefts specs)
then do debugMessage "Finished reading global package cache"
return (Right $ GlobalCache (rights specs))
else return (Left $ intercalate "; " (lefts specs))
where
readPackageSpecIO = liftIO readPackageSpec
loadPackageSpecFromDir pkgdir = case packageVersionFromFile pkgdir of
Nothing -> readPackageSpecFromFile pkgdir
Just (pn,pv) -> case CPM.Repository.findVersion repo pn pv of
Nothing -> readPackageSpecFromFile pkgdir
Just p -> return (Right p)
readPackageSpecFromFile pkgdir = do
let f = path </> pkgdir </> "package.json"
debugMessage $ "Reading package spec from '" ++ f ++ "'..."
spec <- readPackageSpecIO $ readCompleteFile f
return $ case spec of
Left err -> Left $ err ++ " for file '" ++ f ++ "'"
Right v -> Right v
packageVersionFromFile :: String -> Maybe (String, Version)
packageVersionFromFile fn =
let ps = split (=='-') fn
l = length ps
in if l < 2
then Nothing
else case readVersion (last ps) of
Nothing -> Nothing
Just v -> Just (intercalate "-" (take (l-1) ps), v)
|