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-rw-r--r--src/Propellor/Property/Debootstrap.hs8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/Propellor/Property/Debootstrap.hs b/src/Propellor/Property/Debootstrap.hs
index 7c8e9618..c6e5c373 100644
--- a/src/Propellor/Property/Debootstrap.hs
+++ b/src/Propellor/Property/Debootstrap.hs
@@ -19,12 +19,13 @@ import Utility.FileMode
import Data.List
import Data.Char
+import qualified Data.Semigroup as Sem
import System.Posix.Directory
import System.Posix.Files
type Url = String
--- | A monoid for debootstrap configuration.
+-- | A data type for debootstrap configuration.
-- mempty is a default debootstrapped system.
data DebootstrapConfig
= DefaultConfig
@@ -35,9 +36,12 @@ data DebootstrapConfig
| DebootstrapConfig :+ DebootstrapConfig
deriving (Show)
+instance Sem.Semigroup DebootstrapConfig where
+ (<>) = (:+)
+
instance Monoid DebootstrapConfig where
mempty = DefaultConfig
- mappend = (:+)
+ mappend = (<>)
toParams :: DebootstrapConfig -> [CommandParam]
toParams DefaultConfig = []