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-- | Maintainer: Félix Sipma <felix+propellor@gueux.org>
module Propellor.Property.Uwsgi where
import Propellor
import qualified Propellor.Property.File as File
import qualified Propellor.Property.Apt as Apt
import qualified Propellor.Property.Service as Service
import System.Posix.Files
type ConfigFile = [String]
type AppName = String
appEnabled :: AppName -> ConfigFile -> RevertableProperty
appEnabled an cf = enable <!> disable
where
enable = check test prop
`describe` ("uwsgi app enabled " ++ an)
`requires` appAvailable an cf
`requires` installed
`onChange` reloaded
where
test = not <$> doesFileExist (appVal an)
prop = property "uwsgi app in place" $ makeChange $
createSymbolicLink target dir
target = appValRelativeCfg an
dir = appVal an
disable = trivial $ File.notPresent (appVal an)
`describe` ("uwsgi app disable" ++ an)
`requires` installed
`onChange` reloaded
appAvailable :: AppName -> ConfigFile -> Property NoInfo
appAvailable an cf = ("uwsgi app available " ++ an) ==>
appCfg an `File.hasContent` (comment : cf)
where
comment = "# deployed with propellor, do not modify"
appCfg :: AppName -> FilePath
appCfg an = "/etc/uwsgi/apps-available/" ++ an
appVal :: AppName -> FilePath
appVal an = "/etc/uwsgi/apps-enabled/" ++ an
appValRelativeCfg :: AppName -> FilePath
appValRelativeCfg an = "../apps-available/" ++ an
installed :: Property NoInfo
installed = Apt.installed ["uwsgi"]
restarted :: Property NoInfo
restarted = Service.restarted "uwsgi"
reloaded :: Property NoInfo
reloaded = Service.reloaded "uwsgi"
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