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-rw-r--r--src/Propellor/Types/Chroot.hs12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/Propellor/Types/Chroot.hs b/src/Propellor/Types/Chroot.hs
index b7ed7807..d37d34c7 100644
--- a/src/Propellor/Types/Chroot.hs
+++ b/src/Propellor/Types/Chroot.hs
@@ -2,6 +2,7 @@ module Propellor.Types.Chroot where
import Data.Monoid
import qualified Data.Map as M
+import Propellor.Types.Empty
data ChrootInfo host = ChrootInfo
{ _chroots :: M.Map FilePath host
@@ -16,10 +17,16 @@ instance Monoid (ChrootInfo host) where
, _chrootCfg = _chrootCfg old <> _chrootCfg new
}
+instance Empty (ChrootInfo host) where
+ isEmpty i = and
+ [ isEmpty (_chroots i)
+ , isEmpty (_chrootCfg i)
+ ]
+
data ChrootCfg
= NoChrootCfg
| SystemdNspawnCfg [(String, Bool)]
- deriving (Show)
+ deriving (Show, Eq)
instance Monoid ChrootCfg where
mempty = NoChrootCfg
@@ -27,3 +34,6 @@ instance Monoid ChrootCfg where
mappend NoChrootCfg v = v
mappend (SystemdNspawnCfg l1) (SystemdNspawnCfg l2) =
SystemdNspawnCfg (l1 <> l2)
+
+instance Empty ChrootCfg where
+ isEmpty c= c == NoChrootCfg