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+-- | Maintainer: Sean Whitton <spwhitton@spwhitton.name>
+
+module Propellor.Property.Timezone where
+
+import Propellor.Base
+import qualified Propellor.Property.Apt as Apt
+import qualified Propellor.Property.File as File
+
+-- | A timezone from /usr/share/zoneinfo
+type Timezone = String
+
+-- | Sets the system's timezone
+configured :: Timezone -> Property DebianLike
+configured zone = File.hasContent "/etc/timezone" [zone]
+ `onChange` update
+ `describe` (zone ++ " timezone configured")
+ where
+ update = Apt.reConfigure "tzdata" mempty
+ -- work around a bug in recent tzdata. See
+ -- https://bugs.launchpad.net/ubuntu/+source/tzdata/+bug/1554806/
+ `requires` File.notPresent "/etc/localtime"