hlint, weeder

.hlint.yaml

@@ -0,0 +1,66 @@
+# HLint configuration file
+# https://github.com/ndmitchell/hlint
+##########################
+
+# This file contains a template configuration file, which is typically
+# placed as .hlint.yaml in the root of your project
+
+
+# Specify additional command line arguments
+#
+# - arguments: [--color, --cpp-simple, -XQuasiQuotes]
+
+
+# Control which extensions/flags/modules/functions can be used
+#
+# - extensions:
+#   - default: false # all extension are banned by default
+#   - name: [PatternGuards, ViewPatterns] # only these listed extensions can be used
+#   - {name: CPP, within: CrossPlatform} # CPP can only be used in a given module
+#
+# - flags:
+#   - {name: -w, within: []} # -w is allowed nowhere
+#
+# - modules:
+#   - {name: [Data.Set, Data.HashSet], as: Set} # if you import Data.Set qualified, it must be as 'Set'
+#   - {name: Control.Arrow, within: []} # Certain modules are banned entirely
+#
+# - functions:
+#   - {name: unsafePerformIO, within: []} # unsafePerformIO can only appear in no modules
+
+
+# Add custom hints for this project
+#
+# Will suggest replacing "wibbleMany [myvar]" with "wibbleOne myvar"
+# - error: {lhs: "wibbleMany [x]", rhs: wibbleOne x}
+
+
+# Turn on hints that are off by default
+#
+# Ban "module X(module X) where", to require a real export list
+# - warn: {name: Use explicit module export list}
+#
+# Replace a $ b $ c with a . b $ c
+# - group: {name: dollar, enabled: true}
+#
+# Generalise map to fmap, ++ to <>
+# - group: {name: generalise, enabled: true}
+
+
+# Ignore some builtin hints
+- ignore: {name: "Use <$>"}
+- ignore: {name: "Use lambda-case"}
+# When we don't use camelCase it's to match ES.
+# Possibly this is a mistake.
+- ignore: {name: "Use camelCase"}
+- ignore: {name: "Eta reduce"}
+# - ignore: {name: Use let}
+# - ignore: {name: Use const, within: SpecialModule} # Only within certain modules
+
+
+# Define some custom infix operators
+# - fixity: infixr 3 ~^#^~
+
+
+# To generate a suitable file for HLint do:
+# $ hlint --default > .hlint.yaml

Makefile

@@ -3,6 +3,9 @@ stack = STACK_YAML='stack.yaml' stack
 build:
 	stack build
 
+build-validate:
+	stack build --fast --ghc-options '-Werror'
+
 ghci:
 	stack ghci
 
@@ -18,6 +21,19 @@ test-ghci:
 ghcid:
 	ghcid -c "$(stack) ghci bloodhound:lib --test --ghci-options='-fobject-code -fno-warn-unused-do-bind' --main-is bloodhound:test:bloodhound-tests"
 
+ghcid-validate:
+	ghcid -c "$(stack) ghci bloodhound:lib --test --ghci-options='-Werror -fobject-code -fno-warn-unused-do-bind' --main-is bloodhound:test:bloodhound-tests"
+
+weeder:
+	weeder . --build
+
+# hlint --default > .hlint.yaml
+hlint:
+	hlint .
+
+hlint-watch:
+	sos src/ -c "hlint ." -p "src/(.*)\.hs"
+
 mod-build:
 	stack build --ghc-options '+RTS -A128M -RTS'
 

bloodhound.cabal

@@ -37,6 +37,11 @@ library
                        Database.V5.Bloodhound.Client
                        Database.V5.Bloodhound.Types
                        Database.V5.Bloodhound.Types.Class
+                       Database.V5.Bloodhound.Internal.Analysis
+                       Database.V5.Bloodhound.Internal.Client
+                       Database.V5.Bloodhound.Internal.Newtypes
+                       Database.V5.Bloodhound.Internal.Query
+                       Database.V5.Bloodhound.Internal.StringlyTyped
                        Database.V1.Bloodhound
                        Database.V1.Bloodhound.Client
                        Database.V1.Bloodhound.Types
@@ -44,11 +49,6 @@ library
                        Database.V1.Bloodhound.Types.Internal
   other-modules:       Bloodhound.Import
                        Database.Bloodhound.Common.Script
-                       Database.V5.Bloodhound.Internal.Analysis
-                       Database.V5.Bloodhound.Internal.Client
-                       Database.V5.Bloodhound.Internal.Newtypes
-                       Database.V5.Bloodhound.Internal.Query
-                       Database.V5.Bloodhound.Internal.StringlyTyped
   hs-source-dirs:      src
   build-depends:       base             >= 4.3     && <5,
                        bytestring       >= 0.10.0  && <0.11,
@@ -64,13 +64,10 @@ library
                        http-types       >= 0.8     && <0.13,
                        vector           >= 0.10.9  && <0.13,
                        scientific       >= 0.3.0.0 && <0.4.0.0,
-                       bifunctors,
-                       exceptions,
-                       data-default-class,
                        blaze-builder,
-                       unordered-containers,
-                       mtl-compat,
-                       hashable
+                       exceptions,
+                       hashable,
+                       unordered-containers
   default-language:    Haskell2010
 
 test-suite bloodhound-tests
@@ -116,7 +113,6 @@ test-suite bloodhound-tests
                        pretty-simple,
                        quickcheck-arbitrary-template,
                        quickcheck-properties,
-                       generics-sop         >=0.2 && <0.4,
                        errors,
                        exceptions,
                        temporary,

src/Database/V1/Bloodhound/Client.hs

@@ -223,7 +223,8 @@ getStatus :: MonadBH m => m (Maybe Status)
 getStatus = do
   response <- get =<< url
   return $ decode (responseBody response)
-  where url = joinPath []
+  where
+    url = joinPath []
 
 -- | 'getSnapshotRepos' gets the definitions of a subset of the
 -- defined snapshot repos.
@@ -252,7 +253,7 @@ instance FromJSON GSRs where
   parseJSON = withObject "Collection of GenericSnapshotRepo" parse
     where
       parse = fmap GSRs . mapM (uncurry go) . HM.toList
-      go rawName = withObject "GenericSnapshotRepo" $ \o -> do
+      go rawName = withObject "GenericSnapshotRepo" $ \o ->
         GenericSnapshotRepo (SnapshotRepoName rawName) <$> o .: "type"
                                                        <*> o .: "settings"
 
@@ -454,16 +455,18 @@ deleteIndex (IndexName indexName) =
 updateIndexSettings :: MonadBH m => NonEmpty UpdatableIndexSetting -> IndexName -> m Reply
 updateIndexSettings updates (IndexName indexName) =
   bindM2 put url (return body)
-  where url = joinPath [indexName, "_settings"]
-        body = Just (encode jsonBody)
-        jsonBody = Object (deepMerge [u | Object u <- toJSON <$> toList updates])
+  where
+    url = joinPath [indexName, "_settings"]
+    body = Just (encode jsonBody)
+    jsonBody = Object (deepMerge [u | Object u <- toJSON <$> toList updates])
 
 
 getIndexSettings :: (MonadBH m, MonadThrow m) => IndexName
                  -> m (Either EsError IndexSettingsSummary)
-getIndexSettings (IndexName indexName) = do
+getIndexSettings (IndexName indexName) =
   parseEsResponse =<< get =<< url
-  where url = joinPath [indexName, "_settings"]
+  where
+    url = joinPath [indexName, "_settings"]
 
 
 -- | 'optimizeIndex' will optimize a single index, list of indexes or
@@ -586,7 +589,7 @@ listIndices =
     url = joinPath ["_cat/indices?format=json"]
     parse body = maybe (throwM (EsProtocolException body)) return $ do
       vals <- decode body
-      forM vals $ \val -> do
+      forM vals $ \val ->
         case val of
           Object obj -> do
             indexVal <- HM.lookup "index" obj
@@ -718,7 +721,8 @@ encodeBulkOperations stream = collapsed where
   collapsed = toLazyByteString $ mappend mashedTaters (byteString "\n")
 
 mash :: Builder -> V.Vector L.ByteString -> Builder
-mash = V.foldl' (\b x -> b `mappend` (byteString "\n") `mappend` (lazyByteString x))
+mash =
+  V.foldl' (\b x -> b <> byteString "\n" <> lazyByteString x)
 
 mkBulkStreamValue :: Text -> Text -> Text -> Text -> Value
 mkBulkStreamValue operation indexName mappingName docId =

src/Database/V1/Bloodhound/Types.hs

@@ -4,7 +4,6 @@
 {-# LANGUAGE FlexibleInstances          #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE MultiParamTypeClasses      #-}
--- {-# LANGUAGE NoMonomorphismRestriction  #-}
 {-# LANGUAGE NamedFieldPuns             #-}
 {-# LANGUAGE OverloadedStrings          #-}
 {-# LANGUAGE RecordWildCards            #-}
@@ -1137,8 +1136,10 @@ data Source =
   | SourceIncludeExclude Include Exclude
     deriving (Read, Show, Eq, Generic, Typeable)
 
-data PatternOrPatterns = PopPattern   Pattern
-                       | PopPatterns [Pattern] deriving (Eq, Read, Show, Generic, Typeable)
+data PatternOrPatterns =
+    PopPattern Pattern
+  | PopPatterns [Pattern]
+  deriving (Eq, Read, Show, Generic, Typeable)
 
 data Include = Include [Pattern] deriving (Eq, Read, Show, Generic, Typeable)
 data Exclude = Exclude [Pattern] deriving (Eq, Read, Show, Generic, Typeable)
@@ -1906,8 +1907,9 @@ instance ToJSON TermOrder where
 
 instance ToJSON TermInclusion where
   toJSON (TermInclusion x) = toJSON x
-  toJSON (TermPattern pattern flags) = omitNulls [ "pattern" .= pattern,
-                                                     "flags"   .= flags]
+  toJSON (TermPattern pattern flags) =
+    omitNulls [ "pattern" .= pattern
+              , "flags"   .= flags]
 
 instance ToJSON CollectionMode where
   toJSON BreadthFirst = "breadth_first"

src/Database/V5/Bloodhound/Client.hs

@@ -317,7 +317,7 @@ instance FromJSON GSRs where
   parseJSON = withObject "Collection of GenericSnapshotRepo" parse
     where
       parse = fmap GSRs . mapM (uncurry go) . HM.toList
-      go rawName = withObject "GenericSnapshotRepo" $ \o -> do
+      go rawName = withObject "GenericSnapshotRepo" $ \o ->
         GenericSnapshotRepo (SnapshotRepoName rawName) <$> o .: "type"
                                                        <*> o .: "settings"
 
@@ -555,16 +555,18 @@ deleteIndex (IndexName indexName) =
 updateIndexSettings :: MonadBH m => NonEmpty UpdatableIndexSetting -> IndexName -> m Reply
 updateIndexSettings updates (IndexName indexName) =
   bindM2 put url (return body)
-  where url = joinPath [indexName, "_settings"]
-        body = Just (encode jsonBody)
-        jsonBody = Object (deepMerge [u | Object u <- toJSON <$> toList updates])
+  where
+    url = joinPath [indexName, "_settings"]
+    body = Just (encode jsonBody)
+    jsonBody = Object (deepMerge [u | Object u <- toJSON <$> toList updates])
 
 
 getIndexSettings :: (MonadBH m, MonadThrow m) => IndexName
                  -> m (Either EsError IndexSettingsSummary)
-getIndexSettings (IndexName indexName) = do
+getIndexSettings (IndexName indexName) =
   parseEsResponse =<< get =<< url
-  where url = joinPath [indexName, "_settings"]
+  where
+    url = joinPath [indexName, "_settings"]
 
 -- | 'forceMergeIndex' 
 -- 
@@ -704,7 +706,7 @@ listIndices =
     url = joinPath ["_cat/indices?format=json"]
     parse body = maybe (throwM (EsProtocolException body)) return $ do
       vals <- decode body
-      forM vals $ \val -> do
+      forM vals $ \val ->
         case val of
           Object obj -> do
             indexVal <- HM.lookup "index" obj
@@ -861,10 +863,11 @@ deleteDocument (IndexName indexName)
 -- >>> _ <- runBH' $ bulk stream
 -- >>> _ <- runBH' $ refreshIndex testIndex
 bulk :: MonadBH m => V.Vector BulkOperation -> m Reply
-bulk bulkOps = do
+bulk bulkOps =
   bindM2 post url (return body)
-  where url = joinPath ["_bulk"]
-        body = Just $ encodeBulkOperations bulkOps
+  where
+    url = joinPath ["_bulk"]
+    body = Just $ encodeBulkOperations bulkOps
 
 -- | 'encodeBulkOperations' is a convenience function for dumping a vector of 'BulkOperation'
 --   into an 'L.ByteString'
@@ -882,7 +885,7 @@ encodeBulkOperations stream = collapsed where
     toLazyByteString $ mappend mashedTaters (byteString "\n")
 
 mash :: Builder -> V.Vector L.ByteString -> Builder
-mash = V.foldl' (\b x -> b `mappend` (byteString "\n") `mappend` (lazyByteString x))
+mash = V.foldl' (\b x -> b <> byteString "\n" <> lazyByteString x)
 
 mkBulkStreamValue :: Text -> Text -> Text -> Text -> Value
 mkBulkStreamValue operation indexName mappingName docId =

src/Database/V5/Bloodhound/Internal/Analysis.hs

@@ -52,8 +52,8 @@ instance FromJSON AnalyzerDefinition where
     <$> m .:? "tokenizer"
     <*> m .:? "filter" .!= []
 
-data TokenizerDefinition
-  = TokenizerDefinitionNgram Ngram
+newtype TokenizerDefinition =
+  TokenizerDefinitionNgram Ngram
   deriving (Eq,Show)
 
 instance ToJSON TokenizerDefinition where
@@ -70,8 +70,8 @@ instance FromJSON TokenizerDefinition where
     typ <- m .: "type" :: Parser Text
     case typ of
       "ngram" -> fmap TokenizerDefinitionNgram $ Ngram
-        <$> (fmap unStringlyTypedInt (m .: "min_gram"))
-        <*> (fmap unStringlyTypedInt (m .: "max_gram"))
+        <$> fmap unStringlyTypedInt (m .: "min_gram")
+        <*> fmap unStringlyTypedInt (m .: "max_gram")
         <*> m .: "token_chars"
       _ -> fail "invalid TokenizerDefinition"
 

src/Database/V5/Bloodhound/Internal/Client.hs

@@ -10,6 +10,7 @@ module Database.V5.Bloodhound.Internal.Client where
 import           Bloodhound.Import
 
 import qualified Data.Text           as T
+import qualified Data.Traversable    as DT
 import qualified Data.HashMap.Strict as HM
 import qualified Data.Vector         as V
 import qualified Data.Version        as Vers
@@ -114,6 +115,15 @@ data Status = Status
   , tagline      :: Text }
   deriving (Eq, Show)
 
+instance FromJSON Status where
+  parseJSON (Object v) = Status <$>
+                         v .: "name" <*>
+                         v .: "cluster_name" <*>
+                         v .: "cluster_uuid" <*>
+                         v .: "version" <*>
+                         v .: "tagline"
+  parseJSON _          = empty
+
 {-| 'IndexSettings' is used to configure the shards and replicas when
     you create an Elasticsearch Index.
 
@@ -125,6 +135,20 @@ data IndexSettings = IndexSettings
   , indexReplicas :: ReplicaCount }
   deriving (Eq, Show)
 
+instance ToJSON IndexSettings where
+  toJSON (IndexSettings s r) = object ["settings" .=
+                                 object ["index" .=
+                                   object ["number_of_shards" .= s, "number_of_replicas" .= r]
+                                 ]
+                               ]
+
+instance FromJSON IndexSettings where
+  parseJSON = withObject "IndexSettings" parse
+    where parse o = do s <- o .: "settings"
+                       i <- s .: "index"
+                       IndexSettings <$> i .: "number_of_shards"
+                                     <*> i .: "number_of_replicas"
+
 {-| 'defaultIndexSettings' is an 'IndexSettings' with 3 shards and
     2 replicas. -}
 defaultIndexSettings :: IndexSettings
@@ -212,11 +236,150 @@ data UpdatableIndexSetting = NumberOfReplicas ReplicaCount
                            -- ^ Analysis is not a dynamic setting and can only be performed on a closed index.
                            deriving (Eq, Show)
 
+oPath :: ToJSON a => NonEmpty Text -> a -> Value
+oPath (k :| []) v   = object [k .= v]
+oPath (k:| (h:t)) v = object [k .= oPath (h :| t) v]
+
+attrFilterJSON :: NonEmpty NodeAttrFilter -> Value
+attrFilterJSON fs = object [ n .= T.intercalate "," (toList vs)
+                           | NodeAttrFilter (NodeAttrName n) vs <- toList fs]
+
+parseAttrFilter :: Value -> Parser (NonEmpty NodeAttrFilter)
+parseAttrFilter = withObject "NonEmpty NodeAttrFilter" parse
+  where parse o = case HM.toList o of
+                    []   -> fail "Expected non-empty list of NodeAttrFilters"
+                    x:xs -> DT.mapM (uncurry parse') (x :| xs)
+        parse' n = withText "Text" $ \t ->
+          case T.splitOn "," t of
+            fv:fvs -> return (NodeAttrFilter (NodeAttrName n) (fv :| fvs))
+            []     -> fail "Expected non-empty list of filter values"
+
+instance ToJSON UpdatableIndexSetting where
+  toJSON (NumberOfReplicas x) = oPath ("index" :| ["number_of_replicas"]) x
+  toJSON (AutoExpandReplicas x) = oPath ("index" :| ["auto_expand_replicas"]) x
+  toJSON (RefreshInterval x) = oPath ("index" :| ["refresh_interval"]) (NominalDiffTimeJSON x)
+  toJSON (IndexConcurrency x) = oPath ("index" :| ["concurrency"]) x
+  toJSON (FailOnMergeFailure x) = oPath ("index" :| ["fail_on_merge_failure"]) x
+  toJSON (TranslogFlushThresholdOps x) = oPath ("index" :| ["translog", "flush_threshold_ops"]) x
+  toJSON (TranslogFlushThresholdSize x) = oPath ("index" :| ["translog", "flush_threshold_size"]) x
+  toJSON (TranslogFlushThresholdPeriod x) = oPath ("index" :| ["translog", "flush_threshold_period"]) (NominalDiffTimeJSON x)
+  toJSON (TranslogDisableFlush x) = oPath ("index" :| ["translog", "disable_flush"]) x
+  toJSON (CacheFilterMaxSize x) = oPath ("index" :| ["cache", "filter", "max_size"]) x
+  toJSON (CacheFilterExpire x) = oPath ("index" :| ["cache", "filter", "expire"]) (NominalDiffTimeJSON <$> x)
+  toJSON (GatewaySnapshotInterval x) = oPath ("index" :| ["gateway", "snapshot_interval"]) (NominalDiffTimeJSON x)
+  toJSON (RoutingAllocationInclude fs) = oPath ("index" :| ["routing", "allocation", "include"]) (attrFilterJSON fs)
+  toJSON (RoutingAllocationExclude fs) = oPath ("index" :| ["routing", "allocation", "exclude"]) (attrFilterJSON fs)
+  toJSON (RoutingAllocationRequire fs) = oPath ("index" :| ["routing", "allocation", "require"]) (attrFilterJSON fs)
+  toJSON (RoutingAllocationEnable x) = oPath ("index" :| ["routing", "allocation", "enable"]) x
+  toJSON (RoutingAllocationShardsPerNode x) = oPath ("index" :| ["routing", "allocation", "total_shards_per_node"]) x
+  toJSON (RecoveryInitialShards x) = oPath ("index" :| ["recovery", "initial_shards"]) x
+  toJSON (GCDeletes x) = oPath ("index" :| ["gc_deletes"]) (NominalDiffTimeJSON x)
+  toJSON (TTLDisablePurge x) = oPath ("index" :| ["ttl", "disable_purge"]) x
+  toJSON (TranslogFSType x) = oPath ("index" :| ["translog", "fs", "type"]) x
+  toJSON (CompressionSetting x) = oPath ("index" :| ["codec"]) x
+  toJSON (IndexCompoundFormat x) = oPath ("index" :| ["compound_format"]) x
+  toJSON (IndexCompoundOnFlush x) = oPath ("index" :| ["compound_on_flush"]) x
+  toJSON (WarmerEnabled x) = oPath ("index" :| ["warmer", "enabled"]) x
+  toJSON (BlocksReadOnly x) = oPath ("blocks" :| ["read_only"]) x
+  toJSON (BlocksRead x) = oPath ("blocks" :| ["read"]) x
+  toJSON (BlocksWrite x) = oPath ("blocks" :| ["write"]) x
+  toJSON (BlocksMetaData x) = oPath ("blocks" :| ["metadata"]) x
+  toJSON (MappingTotalFieldsLimit x) = oPath ("index" :| ["mapping","total_fields","limit"]) x
+  toJSON (AnalysisSetting x) = oPath ("index" :| ["analysis"]) x
+
+instance FromJSON UpdatableIndexSetting where
+  parseJSON = withObject "UpdatableIndexSetting" parse
+    where parse o = numberOfReplicas `taggedAt` ["index", "number_of_replicas"]
+                <|> autoExpandReplicas `taggedAt` ["index", "auto_expand_replicas"]
+                <|> refreshInterval `taggedAt` ["index", "refresh_interval"]
+                <|> indexConcurrency `taggedAt` ["index", "concurrency"]
+                <|> failOnMergeFailure `taggedAt` ["index", "fail_on_merge_failure"]
+                <|> translogFlushThresholdOps `taggedAt` ["index", "translog", "flush_threshold_ops"]
+                <|> translogFlushThresholdSize `taggedAt` ["index", "translog", "flush_threshold_size"]
+                <|> translogFlushThresholdPeriod `taggedAt` ["index", "translog", "flush_threshold_period"]
+                <|> translogDisableFlush `taggedAt` ["index", "translog", "disable_flush"]
+                <|> cacheFilterMaxSize `taggedAt` ["index", "cache", "filter", "max_size"]
+                <|> cacheFilterExpire `taggedAt` ["index", "cache", "filter", "expire"]
+                <|> gatewaySnapshotInterval `taggedAt` ["index", "gateway", "snapshot_interval"]
+                <|> routingAllocationInclude `taggedAt` ["index", "routing", "allocation", "include"]
+                <|> routingAllocationExclude `taggedAt` ["index", "routing", "allocation", "exclude"]
+                <|> routingAllocationRequire `taggedAt` ["index", "routing", "allocation", "require"]
+                <|> routingAllocationEnable `taggedAt` ["index", "routing", "allocation", "enable"]
+                <|> routingAllocationShardsPerNode `taggedAt` ["index", "routing", "allocation", "total_shards_per_node"]
+                <|> recoveryInitialShards `taggedAt` ["index", "recovery", "initial_shards"]
+                <|> gcDeletes `taggedAt` ["index", "gc_deletes"]
+                <|> ttlDisablePurge `taggedAt` ["index", "ttl", "disable_purge"]
+                <|> translogFSType `taggedAt` ["index", "translog", "fs", "type"]
+                <|> compressionSetting `taggedAt` ["index", "codec"]
+                <|> compoundFormat `taggedAt` ["index", "compound_format"]
+                <|> compoundOnFlush `taggedAt` ["index", "compound_on_flush"]
+                <|> warmerEnabled `taggedAt` ["index", "warmer", "enabled"]
+                <|> blocksReadOnly `taggedAt` ["blocks", "read_only"]
+                <|> blocksRead `taggedAt` ["blocks", "read"]
+                <|> blocksWrite `taggedAt` ["blocks", "write"]
+                <|> blocksMetaData `taggedAt` ["blocks", "metadata"]
+                <|> mappingTotalFieldsLimit `taggedAt` ["index", "mapping", "total_fields", "limit"]
+                <|> analysisSetting `taggedAt` ["index", "analysis"]
+            where taggedAt f ks = taggedAt' f (Object o) ks
+          taggedAt' f v [] =
+            f =<< (parseJSON v <|> parseJSON (unStringlyTypeJSON v))
+          taggedAt' f v (k:ks) =
+            withObject "Object" (\o -> do v' <- o .: k
+                                          taggedAt' f v' ks) v
+          numberOfReplicas               = pure . NumberOfReplicas
+          autoExpandReplicas             = pure . AutoExpandReplicas
+          refreshInterval                = pure . RefreshInterval . ndtJSON
+          indexConcurrency               = pure . IndexConcurrency
+          failOnMergeFailure             = pure . FailOnMergeFailure
+          translogFlushThresholdOps      = pure . TranslogFlushThresholdOps
+          translogFlushThresholdSize     = pure . TranslogFlushThresholdSize
+          translogFlushThresholdPeriod   = pure . TranslogFlushThresholdPeriod . ndtJSON
+          translogDisableFlush           = pure . TranslogDisableFlush
+          cacheFilterMaxSize             = pure . CacheFilterMaxSize
+          cacheFilterExpire              = pure . CacheFilterExpire . fmap ndtJSON
+          gatewaySnapshotInterval        = pure . GatewaySnapshotInterval . ndtJSON
+          routingAllocationInclude       = fmap RoutingAllocationInclude . parseAttrFilter
+          routingAllocationExclude       = fmap RoutingAllocationExclude . parseAttrFilter
+          routingAllocationRequire       = fmap RoutingAllocationRequire . parseAttrFilter
+          routingAllocationEnable        = pure . RoutingAllocationEnable
+          routingAllocationShardsPerNode = pure . RoutingAllocationShardsPerNode
+          recoveryInitialShards          = pure . RecoveryInitialShards
+          gcDeletes                      = pure . GCDeletes . ndtJSON
+          ttlDisablePurge                = pure . TTLDisablePurge
+          translogFSType                 = pure . TranslogFSType
+          compressionSetting             = pure . CompressionSetting
+          compoundFormat                 = pure . IndexCompoundFormat
+          compoundOnFlush                = pure . IndexCompoundOnFlush
+          warmerEnabled                  = pure . WarmerEnabled
+          blocksReadOnly                 = pure . BlocksReadOnly
+          blocksRead                     = pure . BlocksRead
+          blocksWrite                    = pure . BlocksWrite
+          blocksMetaData                 = pure . BlocksMetaData
+          mappingTotalFieldsLimit        = pure . MappingTotalFieldsLimit
+          analysisSetting                = pure . AnalysisSetting
+
 data ReplicaBounds = ReplicasBounded Int Int
                    | ReplicasLowerBounded Int
                    | ReplicasUnbounded
                    deriving (Eq, Show)
 
+
+instance ToJSON ReplicaBounds where
+  toJSON (ReplicasBounded a b)    = String (showText a <> "-" <> showText b)
+  toJSON (ReplicasLowerBounded a) = String (showText a <> "-all")
+  toJSON ReplicasUnbounded        = Bool False
+
+instance FromJSON ReplicaBounds where
+  parseJSON v = withText "ReplicaBounds" parseText v
+            <|> withBool "ReplicaBounds" parseBool v
+    where parseText t = case T.splitOn "-" t of
+                          [a, "all"] -> ReplicasLowerBounded <$> parseReadText a
+                          [a, b] -> ReplicasBounded <$> parseReadText a
+                                                    <*> parseReadText b
+                          _ -> fail ("Could not parse ReplicaBounds: " <> show t)
+          parseBool False = pure ReplicasUnbounded
+          parseBool _ = fail "ReplicasUnbounded cannot be represented with True"
+
 data Compression
   = CompressionDefault
     -- ^ Compress with LZ4
@@ -267,6 +430,16 @@ kilobytes n = Bytes (1000 * n)
 data FSType = FSSimple
             | FSBuffered deriving (Eq, Show)
 
+instance ToJSON FSType where
+  toJSON FSSimple   = "simple"
+  toJSON FSBuffered = "buffered"
+
+instance FromJSON FSType where
+  parseJSON = withText "FSType" parse
+    where parse "simple"   = pure FSSimple
+          parse "buffered" = pure FSBuffered
+          parse t          = fail ("Invalid FSType: " <> show t)
+
 data InitialShardCount = QuorumShards
                        | QuorumMinus1Shards
                        | FullShards
@@ -274,6 +447,22 @@ data InitialShardCount = QuorumShards
                        | ExplicitShards Int
                        deriving (Eq, Show)
 
+instance FromJSON InitialShardCount where
+  parseJSON v = withText "InitialShardCount" parseText v
+            <|> ExplicitShards <$> parseJSON v
+    where parseText "quorum"   = pure QuorumShards
+          parseText "quorum-1" = pure QuorumMinus1Shards
+          parseText "full"     = pure FullShards
+          parseText "full-1"   = pure FullMinus1Shards
+          parseText _          = mzero
+
+instance ToJSON InitialShardCount where
+  toJSON QuorumShards       = String "quorum"
+  toJSON QuorumMinus1Shards = String "quorum-1"
+  toJSON FullShards         = String "full"
+  toJSON FullMinus1Shards   = String "full-1"
+  toJSON (ExplicitShards x) = toJSON x
+
 data NodeAttrFilter = NodeAttrFilter
   { nodeAttrFilterName   :: NodeAttrName
   , nodeAttrFilterValues :: NonEmpty Text }
@@ -286,12 +475,52 @@ data CompoundFormat = CompoundFileFormat Bool
                     -- ^ percentage between 0 and 1 where 0 is false, 1 is true
                     deriving (Eq, Show)
 
-newtype NominalDiffTimeJSON = NominalDiffTimeJSON { ndtJSON ::  NominalDiffTime }
+instance ToJSON CompoundFormat where
+  toJSON (CompoundFileFormat x)       = Bool x
+  toJSON (MergeSegmentVsTotalIndex x) = toJSON x
 
-data IndexSettingsSummary = IndexSettingsSummary { sSummaryIndexName     :: IndexName
-                                                 , sSummaryFixedSettings :: IndexSettings
-                                                 , sSummaryUpdateable    :: [UpdatableIndexSetting]}
-                                                 deriving (Eq, Show)
+instance FromJSON CompoundFormat where
+  parseJSON v = CompoundFileFormat <$> parseJSON v
+            <|> MergeSegmentVsTotalIndex <$> parseJSON v
+
+newtype NominalDiffTimeJSON =
+  NominalDiffTimeJSON { ndtJSON ::  NominalDiffTime }
+
+instance ToJSON NominalDiffTimeJSON where
+  toJSON (NominalDiffTimeJSON t) = String (showText (round t :: Integer) <> "s")
+
+instance FromJSON NominalDiffTimeJSON where
+  parseJSON = withText "NominalDiffTime" parse
+    where parse t = case T.takeEnd 1 t of
+                      "s" -> NominalDiffTimeJSON . fromInteger <$> parseReadText (T.dropEnd 1 t)
+                      _ -> fail "Invalid or missing NominalDiffTime unit (expected s)"
+
+data IndexSettingsSummary = IndexSettingsSummary
+  { sSummaryIndexName     :: IndexName
+  , sSummaryFixedSettings :: IndexSettings
+  , sSummaryUpdateable    :: [UpdatableIndexSetting]}
+  deriving (Eq, Show)
+
+parseSettings :: Object -> Parser [UpdatableIndexSetting]
+parseSettings o = do
+  o' <- o .: "index"
+  -- slice the index object into singleton hashmaps and try to parse each
+  parses <- forM (HM.toList o') $ \(k, v) -> do
+    -- blocks are now nested into the "index" key, which is not how they're serialized
+    let atRoot = Object (HM.singleton k v)
+    let atIndex = Object (HM.singleton "index" atRoot)
+    optional (parseJSON atRoot <|> parseJSON atIndex)
+  return (catMaybes parses)
+
+instance FromJSON IndexSettingsSummary where
+  parseJSON = withObject "IndexSettingsSummary" parse
+    where parse o = case HM.toList o of
+                      [(ixn, v@(Object o'))] -> IndexSettingsSummary (IndexName ixn)
+                                                <$> parseJSON v
+                                                <*> (fmap (filter (not . redundant)) . parseSettings =<< o' .: "settings")
+                      _ -> fail "Expected single-key object with index name"
+          redundant (NumberOfReplicas _) = True
+          redundant _                    = False
 
 {-| 'Reply' and 'Method' are type synonyms from 'Network.HTTP.Types.Method.Method' -}
 type Reply = Network.HTTP.Client.Response LByteString
@@ -310,8 +539,9 @@ data FieldType = GeoPointType
                | ShortType
                | ByteType deriving (Eq, Show)
 
-data FieldDefinition =
-  FieldDefinition { fieldType :: FieldType } deriving (Eq, Show)
+newtype FieldDefinition = FieldDefinition
+  { fieldType :: FieldType
+  } deriving (Eq, Show)
 
 {-| An 'IndexTemplate' defines a template that will automatically be
     applied to new indices created. The templates include both
@@ -327,6 +557,17 @@ data IndexTemplate =
                 , templateMappings :: [Value]
                 }
 
+instance ToJSON IndexTemplate where
+  toJSON (IndexTemplate p s m) = merge
+    (object [ "template" .= p
+            , "mappings" .= foldl' merge (object []) m
+            ])
+    (toJSON s)
+   where
+     merge (Object o1) (Object o2) = toJSON $ HM.union o1 o2
+     merge o           Null        = o
+     merge _           _           = undefined
+
 data MappingField =
   MappingField { mappingFieldName :: FieldName
                , fieldDefinition  :: FieldDefinition }
@@ -355,6 +596,20 @@ data AllocationPolicy = AllocAll
                       -- ^ No shard allocation is allowed
                       deriving (Eq, Show)
 
+instance ToJSON AllocationPolicy where
+  toJSON AllocAll          = String "all"
+  toJSON AllocPrimaries    = String "primaries"
+  toJSON AllocNewPrimaries = String "new_primaries"
+  toJSON AllocNone         = String "none"
+
+instance FromJSON AllocationPolicy where
+  parseJSON = withText "AllocationPolicy" parse
+    where parse "all" = pure AllocAll
+          parse "primaries" = pure AllocPrimaries
+          parse "new_primaries" = pure AllocNewPrimaries
+          parse "none" = pure AllocNone
+          parse t = fail ("Invlaid AllocationPolicy: " <> show t)
+
 {-| 'BulkOperation' is a sum type for expressing the four kinds of bulk
     operation index, create, delete, and update. 'BulkIndex' behaves like an
     "upsert", 'BulkCreate' will fail if a document already exists at the DocId.
@@ -401,6 +656,24 @@ data EsResultFound a =
                 , _source   :: a }
   deriving (Eq, Show)
 
+instance (FromJSON a) => FromJSON (EsResult a) where
+  parseJSON jsonVal@(Object v) = do
+    found <- v .:? "found" .!= False
+    fr <- if found
+             then parseJSON jsonVal
+             else return Nothing
+    EsResult <$> v .:  "_index"   <*>
+                 v .:  "_type"    <*>
+                 v .:  "_id"      <*>
+                 pure fr
+  parseJSON _          = empty
+
+instance (FromJSON a) => FromJSON (EsResultFound a) where
+  parseJSON (Object v) = EsResultFound <$>
+                         v .: "_version" <*>
+                         v .: "_source"
+  parseJSON _          = empty
+
 {-| 'EsError' is the generic type that will be returned when there was a
     problem. If you can't parse the expected response, its a good idea to
     try parsing this.
@@ -410,6 +683,12 @@ data EsError =
           , errorMessage :: Text }
   deriving (Eq, Show)
 
+instance FromJSON EsError where
+  parseJSON (Object v) = EsError <$>
+                         v .: "status" <*>
+                         (v .: "error" <|> (v .: "error" >>= (.: "reason")))
+  parseJSON _ = empty
+
 {-| 'EsProtocolException' will be thrown if Bloodhound cannot parse a response
 returned by the ElasticSearch server. If you encounter this error, please
 verify that your domain data types and FromJSON instances are working properly
@@ -418,8 +697,9 @@ sure that your mappings are correct, then this error may be an indication of an
 incompatibility between Bloodhound and ElasticSearch. Please open a bug report
 and be sure to include the exception body.
 -}
-data EsProtocolException = EsProtocolException { esProtoExBody :: LByteString }
-                                               deriving (Eq, Show)
+newtype EsProtocolException = EsProtocolException
+  { esProtoExBody :: LByteString
+  } deriving (Eq, Show)
 
 instance Exception EsProtocolException
 
@@ -445,6 +725,13 @@ newtype SearchAliasRouting =
   SearchAliasRouting (NonEmpty RoutingValue)
   deriving (Eq, Show)
 
+instance ToJSON SearchAliasRouting where
+  toJSON (SearchAliasRouting rvs) = toJSON (T.intercalate "," (routingValue <$> toList rvs))
+
+instance FromJSON SearchAliasRouting where
+  parseJSON = withText "SearchAliasRouting" parse
+    where parse t = SearchAliasRouting <$> parseNEJSON (String <$> T.splitOn "," t)
+
 newtype IndexAliasRouting =
   IndexAliasRouting RoutingValue
   deriving (Eq, Show, ToJSON, FromJSON)
@@ -457,6 +744,55 @@ newtype IndexAliasesSummary =
   IndexAliasesSummary { indexAliasesSummary :: [IndexAliasSummary] }
   deriving (Eq, Show)
 
+instance FromJSON IndexAliasesSummary where
+  parseJSON = withObject "IndexAliasesSummary" parse
+    where parse o = IndexAliasesSummary . mconcat <$> mapM (uncurry go) (HM.toList o)
+          go ixn = withObject "index aliases" $ \ia -> do
+                     aliases <- ia .:? "aliases" .!= mempty
+                     forM (HM.toList aliases) $ \(aName, v) -> do
+                       let indexAlias = IndexAlias (IndexName ixn) (IndexAliasName (IndexName aName))
+                       IndexAliasSummary indexAlias <$> parseJSON v
+
+
+instance ToJSON IndexAliasAction where
+  toJSON (AddAlias ia opts) = object ["add" .= (iaObj <> optsObj)]
+    where Object iaObj = toJSON ia
+          Object optsObj = toJSON opts
+  toJSON (RemoveAlias ia) = object ["remove" .= iaObj]
+    where Object iaObj = toJSON ia
+
+instance ToJSON IndexAlias where
+  toJSON IndexAlias {..} = object ["index" .= srcIndex
+                                  , "alias" .= indexAlias
+                                  ]
+
+instance ToJSON IndexAliasCreate where
+  toJSON IndexAliasCreate {..} = Object (filterObj <> routingObj)
+    where filterObj = maybe mempty (HM.singleton "filter" . toJSON) aliasCreateFilter
+          Object routingObj = maybe (Object mempty) toJSON aliasCreateRouting
+
+instance ToJSON AliasRouting where
+  toJSON (AllAliasRouting v) = object ["routing" .= v]
+  toJSON (GranularAliasRouting srch idx) = object (catMaybes prs)
+    where prs = [("search_routing" .=) <$> srch
+                ,("index_routing" .=) <$> idx]
+
+instance FromJSON AliasRouting where
+  parseJSON = withObject "AliasRouting" parse
+    where parse o = parseAll o <|> parseGranular o
+          parseAll o = AllAliasRouting <$> o .: "routing"
+          parseGranular o = do
+            sr <- o .:? "search_routing"
+            ir <- o .:? "index_routing"
+            if isNothing sr && isNothing ir
+               then fail "Both search_routing and index_routing can't be blank"
+               else return (GranularAliasRouting sr ir)
+
+instance FromJSON IndexAliasCreate where
+  parseJSON v = withObject "IndexAliasCreate" parse v
+    where parse o = IndexAliasCreate <$> optional (parseJSON v)
+                                     <*> o .:? "filter"
+
 {-| 'IndexAliasSummary' is a summary of an index alias configured for a server. -}
 data IndexAliasSummary = IndexAliasSummary
   { indexAliasSummaryAlias  :: IndexAlias
@@ -473,10 +809,32 @@ newtype DocVersion = DocVersion {
 -- | Smart constructor for in-range doc version
 mkDocVersion :: Int -> Maybe DocVersion
 mkDocVersion i
-  | i >= (docVersionNumber minBound) && i <= (docVersionNumber maxBound) =
+  |    i >= docVersionNumber minBound
+    && i <= docVersionNumber maxBound =
     Just $ DocVersion i
   | otherwise = Nothing
 
+instance Bounded DocVersion where
+  minBound = DocVersion 1
+  maxBound = DocVersion 9200000000000000000 -- 9.2e+18
+
+instance Enum DocVersion where
+  succ x
+    | x /= maxBound = DocVersion (succ $ docVersionNumber x)
+    | otherwise     = succError "DocVersion"
+  pred x
+    | x /= minBound = DocVersion (pred $ docVersionNumber x)
+    | otherwise     = predError "DocVersion"
+  toEnum i =
+    fromMaybe (error $ show i ++ " out of DocVersion range") $ mkDocVersion i
+  fromEnum = docVersionNumber
+  enumFrom = boundedEnumFrom
+  enumFromThen = boundedEnumFromThen
+
+instance FromJSON DocVersion where
+  parseJSON v = do
+    i <- parseJSON v
+    maybe (fail "DocVersion out of range") return $ mkDocVersion i
 
 {-| 'ExternalDocVersion' is a convenience wrapper if your code uses its
 own version numbers instead of ones from ES.
@@ -576,36 +934,6 @@ newtype TemplateName = TemplateName Text deriving (Eq, Show, ToJSON, FromJSON)
 -}
 newtype TemplatePattern = TemplatePattern Text deriving (Eq, Show, ToJSON, FromJSON)
 
--- This insanity is because ES *sometimes* returns Replica/Shard counts as strings
-instance FromJSON ReplicaCount where
-  parseJSON v = parseAsInt v
-            <|> parseAsString v
-    where parseAsInt = fmap ReplicaCount . parseJSON
-          parseAsString = withText "ReplicaCount" (fmap ReplicaCount . parseReadText)
-
-instance FromJSON ShardCount where
-  parseJSON v = parseAsInt v
-            <|> parseAsString v
-    where parseAsInt = fmap ShardCount . parseJSON
-          parseAsString = withText "ShardCount" (fmap ShardCount . parseReadText)
-
-instance Bounded DocVersion where
-  minBound = DocVersion 1
-  maxBound = DocVersion 9200000000000000000 -- 9.2e+18
-
-instance Enum DocVersion where
-  succ x
-    | x /= maxBound = DocVersion (succ $ docVersionNumber x)
-    | otherwise     = succError "DocVersion"
-  pred x
-    | x /= minBound = DocVersion (pred $ docVersionNumber x)
-    | otherwise     = predError "DocVersion"
-  toEnum i =
-    fromMaybe (error $ show i ++ " out of DocVersion range") $ mkDocVersion i
-  fromEnum = docVersionNumber
-  enumFrom = boundedEnumFrom
-  enumFromThen = boundedEnumFromThen
-
 -- | Username type used for HTTP Basic authentication. See 'basicAuthHook'.
 newtype EsUsername = EsUsername { esUsername :: Text } deriving (Read, Show, Eq)
 
@@ -1225,13 +1553,13 @@ data SnapshotRestoreSettings = SnapshotRestoreSettings {
     -- revert back to the server default during the restore process.
     } deriving (Eq, Show)
 
-data SnapshotRepoUpdateSettings = SnapshotRepoUpdateSettings {
-     repoUpdateVerify :: Bool
-     -- ^ After creation/update, synchronously check that nodes can
-     -- write to this repo. Defaults to True. You may use False if you
-     -- need a faster response and plan on verifying manually later
-     -- with 'verifySnapshotRepo'.
-    } deriving (Eq, Show)
+newtype SnapshotRepoUpdateSettings = SnapshotRepoUpdateSettings
+  { repoUpdateVerify :: Bool
+    -- ^ After creation/update, synchronously check that nodes can
+    -- write to this repo. Defaults to True. You may use False if you
+    -- need a faster response and plan on verifying manually later
+    -- with 'verifySnapshotRepo'.
+  } deriving (Eq, Show)
 
 
 -- | Reasonable defaults for repo creation/update
@@ -1271,7 +1599,7 @@ instance SnapshotRepo FsSnapshotRepo where
   fromGSnapshotRepo GenericSnapshotRepo {..}
     | gSnapshotRepoType == fsRepoType = do
       let o = gSnapshotRepoSettingsObject gSnapshotRepoSettings
-      parseRepo $ do
+      parseRepo $
         FsSnapshotRepo gSnapshotRepoName <$> o .: "location"
                                          <*> o .:? "compress" .!= False
                                          <*> o .:? "chunk_size"
@@ -1370,12 +1698,6 @@ data SnapshotInfo = SnapshotInfo {
     } deriving (Eq, Show)
 
 
-instance FromJSON POSIXMS where
-  parseJSON = withScientific "POSIXMS" (return . parse)
-    where parse n =
-            let n' = truncate n :: Integer
-            in POSIXMS (posixSecondsToUTCTime (fromInteger (n' `div` 1000)))
-
 instance FromJSON SnapshotInfo where
   parseJSON = withObject "SnapshotInfo" parse
     where
@@ -1437,7 +1759,8 @@ instance Bounded RRGroupRefNum where
 -- | Only allows valid group number references (1-9).
 mkRRGroupRefNum :: Int -> Maybe RRGroupRefNum
 mkRRGroupRefNum i
-  | i >= (rrGroupRefNum minBound) && i <= (rrGroupRefNum maxBound) =
+  |    i >= rrGroupRefNum minBound
+    && i <= rrGroupRefNum maxBound =
     Just $ RRGroupRefNum i
   | otherwise = Nothing
 
@@ -1471,9 +1794,9 @@ defaultSnapshotRestoreSettings = SnapshotRestoreSettings {
 -- | Index settings that can be overridden. The docs only mention you
 -- can update number of replicas, but there may be more. You
 -- definitely cannot override shard count.
-data RestoreIndexSettings = RestoreIndexSettings {
-      restoreOverrideReplicas :: Maybe ReplicaCount
-    } deriving (Eq, Show)
+newtype RestoreIndexSettings = RestoreIndexSettings
+  { restoreOverrideReplicas :: Maybe ReplicaCount
+  } deriving (Eq, Show)
 
 
 instance ToJSON RestoreIndexSettings where
@@ -1813,7 +2136,7 @@ instance FromJSON NodeBreakersStats where
                                   <*> o .: "fielddata"
 
 parseNodeStats :: FullNodeId -> Object -> Parser NodeStats
-parseNodeStats fnid o = do
+parseNodeStats fnid o =
   NodeStats <$> o .: "name"
             <*> pure fnid
             <*> o .:? "breakers"
@@ -1871,7 +2194,7 @@ instance FromJSON BoundTransportAddress where
 instance FromJSON NodeOSInfo where
   parseJSON = withObject "NodeOSInfo" parse
     where
-      parse o = do
+      parse o =
         NodeOSInfo <$> (unMS <$> o .: "refresh_interval_in_millis")
                    <*> o .: "name"
                    <*> o .: "arch"
@@ -1990,6 +2313,16 @@ data Interval = Year
               | Minute
               | Second deriving (Eq, Show)
 
+instance ToJSON Interval where
+  toJSON Year    = "year"
+  toJSON Quarter = "quarter"
+  toJSON Month   = "month"
+  toJSON Week    = "week"
+  toJSON Day     = "day"
+  toJSON Hour    = "hour"
+  toJSON Minute  = "minute"
+  toJSON Second  = "second"
+
 parseStringInterval :: (Monad m) => String -> m NominalDiffTime
 parseStringInterval s = case span isNumber s of
   ("", _) -> fail "Invalid interval"

src/Database/V5/Bloodhound/Internal/Newtypes.hs

@@ -146,6 +146,12 @@ newtype MaxDocFrequency = MaxDocFrequency Int deriving (Eq, Show, FromJSON, ToJS
 -- | Newtype wrapper to parse ES's concerning tendency to in some APIs return a floating point number of milliseconds since epoch ಠ_ಠ
 newtype POSIXMS = POSIXMS { posixMS :: UTCTime }
 
+instance FromJSON POSIXMS where
+  parseJSON = withScientific "POSIXMS" (return . parse)
+    where parse n =
+            let n' = truncate n :: Integer
+            in POSIXMS (posixSecondsToUTCTime (fromInteger (n' `div` 1000)))
+
 newtype Boost =
   Boost Double
   deriving (Eq, Show, ToJSON, FromJSON)
@@ -154,15 +160,28 @@ newtype BoostTerms =
   BoostTerms Double
   deriving (Eq, Show, ToJSON, FromJSON)
 
+{-| 'ReplicaCount' is part of 'IndexSettings' -}
+newtype ReplicaCount =
+  ReplicaCount Int
+  deriving (Eq, Show, ToJSON)
+
 {-| 'ShardCount' is part of 'IndexSettings' -}
 newtype ShardCount =
   ShardCount Int
   deriving (Eq, Show, ToJSON)
 
-{-| 'ReplicaCount' is part of 'IndexSettings' -}
-newtype ReplicaCount =
-  ReplicaCount Int
-  deriving (Eq, Show, ToJSON)
+-- This insanity is because ES *sometimes* returns Replica/Shard counts as strings
+instance FromJSON ReplicaCount where
+  parseJSON v = parseAsInt v
+            <|> parseAsString v
+    where parseAsInt = fmap ReplicaCount . parseJSON
+          parseAsString = withText "ReplicaCount" (fmap ReplicaCount . parseReadText)
+
+instance FromJSON ShardCount where
+  parseJSON v = parseAsInt v
+            <|> parseAsString v
+    where parseAsInt = fmap ShardCount . parseJSON
+          parseAsString = withText "ShardCount" (fmap ShardCount . parseReadText)
 
 {-| 'IndexName' is used to describe which index to query/create/delete -}
 newtype IndexName =
@@ -195,7 +214,7 @@ unMS (MS t) = t
 instance FromJSON MS where
   parseJSON = withScientific "MS" (return . MS . parse)
     where
-      parse n = fromInteger ((truncate n) * 1000)
+      parse n = fromInteger (truncate n * 1000)
 
 newtype TokenFilter =
   TokenFilter Text deriving (Eq, Show, FromJSON, ToJSON)

src/Database/V5/Bloodhound/Internal/Query.hs

@@ -435,6 +435,10 @@ data GeoPoint =
   GeoPoint { geoField :: FieldName
            , latLon   :: LatLon} deriving (Eq, Show)
 
+instance ToJSON GeoPoint where
+  toJSON (GeoPoint (FieldName geoPointField) geoPointLatLon) =
+    object [ geoPointField  .= geoPointLatLon ]
+
 data DistanceUnit = Miles
                   | Yards
                   | Feet
@@ -882,7 +886,8 @@ instance FromJSON QueryStringQuery where
 instance ToJSON RangeQuery where
   toJSON (RangeQuery (FieldName fieldName) range boost) =
     object [ fieldName .= object conjoined ]
-    where conjoined = [ "boost" .= boost ] ++ (rangeValueToPair range)
+    where
+      conjoined = ("boost" .= boost) : rangeValueToPair range
 
 instance FromJSON RangeQuery where
   parseJSON = withObject "RangeQuery" parse
@@ -891,38 +896,76 @@ instance FromJSON RangeQuery where
                     <$> parseJSON (Object o)
                     <*> o .: "boost"
 
+parseRangeValue :: ( FromJSON t4
+                   , FromJSON t3
+                   , FromJSON t2
+                   , FromJSON t1
+                   )
+                => (t3 -> t5)
+                -> (t1 -> t6)
+                -> (t4 -> t7)
+                -> (t2 -> t8)
+                -> (t5 -> t6 -> b)
+                -> (t7 -> t6 -> b)
+                -> (t5 -> t8 -> b)
+                -> (t7 -> t8 -> b)
+                -> (t5 -> b)
+                -> (t6 -> b)
+                -> (t7 -> b)
+                -> (t8 -> b)
+                -> Parser b
+                -> Object
+                -> Parser b
+parseRangeValue mkGt mkLt mkGte mkLte
+                fGtLt fGteLt fGtLte fGteLte
+                fGt fLt fGte fLte nada o = do
+  lt <- o .:? "lt"
+  lte <- o .:? "lte"
+  gt <- o .:? "gt"
+  gte <- o .:? "gte"
+  case (lt, lte, gt, gte) of
+    (Just a, _, Just b, _) ->
+      return (fGtLt (mkGt b) (mkLt a))
+    (Just a, _, _, Just b) ->
+      return (fGteLt (mkGte b) (mkLt a))
+    (_, Just a, Just b, _) ->
+      return (fGtLte (mkGt b) (mkLte a))
+    (_, Just a, _, Just b) ->
+      return (fGteLte (mkGte b) (mkLte a))
+    (_, _, Just a, _) ->
+      return (fGt (mkGt a))
+    (Just a, _, _, _) ->
+      return (fLt (mkLt a))
+    (_, _, _, Just a) ->
+      return (fGte (mkGte a))
+    (_, Just a, _, _) ->
+      return (fLte (mkLte a))
+    (Nothing, Nothing, Nothing, Nothing) ->
+      nada
+
+  
 instance FromJSON RangeValue where
   parseJSON = withObject "RangeValue" parse
     where parse o = parseDate o
                 <|> parseDouble o
-          parseDate o = do lt <- o .:? "lt"
-                           lte <- o .:? "lte"
-                           gt <- o .:? "gt"
-                           gte <- o .:? "gte"
-                           case (lt, lte, gt, gte) of
-                             (Just a, _, Just b, _) -> return (RangeDateGtLt (GreaterThanD b) (LessThanD a))
-                             (Just a, _, _, Just b)-> return (RangeDateGteLt (GreaterThanEqD b) (LessThanD a))
-                             (_, Just a, Just b, _)-> return (RangeDateGtLte (GreaterThanD b) (LessThanEqD a))
-                             (_, Just a, _, Just b)-> return (RangeDateGteLte (GreaterThanEqD b) (LessThanEqD a))
-                             (_, _, Just a, _)-> return (RangeDateGt (GreaterThanD a))
-                             (Just a, _, _, _)-> return (RangeDateLt (LessThanD a))
-                             (_, _, _, Just a)-> return (RangeDateGte (GreaterThanEqD a))
-                             (_, Just a, _, _)-> return (RangeDateLte (LessThanEqD a))
-                             (Nothing, Nothing, Nothing, Nothing) -> mzero
-          parseDouble o = do lt <- o .:? "lt"
-                             lte <- o .:? "lte"
-                             gt <- o .:? "gt"
-                             gte <- o .:? "gte"
-                             case (lt, lte, gt, gte) of
-                               (Just a, _, Just b, _) -> return (RangeDoubleGtLt (GreaterThan b) (LessThan a))
-                               (Just a, _, _, Just b)-> return (RangeDoubleGteLt (GreaterThanEq b) (LessThan a))
-                               (_, Just a, Just b, _)-> return (RangeDoubleGtLte (GreaterThan b) (LessThanEq a))
-                               (_, Just a, _, Just b)-> return (RangeDoubleGteLte (GreaterThanEq b) (LessThanEq a))
-                               (_, _, Just a, _)-> return (RangeDoubleGt (GreaterThan a))
-                               (Just a, _, _, _)-> return (RangeDoubleLt (LessThan a))
-                               (_, _, _, Just a)-> return (RangeDoubleGte (GreaterThanEq a))
-                               (_, Just a, _, _)-> return (RangeDoubleLte (LessThanEq a))
-                               (Nothing, Nothing, Nothing, Nothing) -> mzero
+          parseDate o =
+            parseRangeValue
+            GreaterThanD LessThanD
+            GreaterThanEqD LessThanEqD
+            RangeDateGtLt RangeDateGteLt
+            RangeDateGtLte RangeDateGteLte
+            RangeDateGt RangeDateLt
+            RangeDateGte RangeDateLte
+            mzero o
+          parseDouble o =
+            parseRangeValue
+            GreaterThan LessThan
+            GreaterThanEq LessThanEq
+            RangeDoubleGtLt RangeDoubleGteLt
+            RangeDoubleGtLte RangeDoubleGteLte
+            RangeDoubleGt RangeDoubleLt
+            RangeDoubleGte RangeDoubleLte
+            mzero o
 
 instance ToJSON PrefixQuery where
   toJSON (PrefixQuery (FieldName fieldName) queryValue boost) =

tests/V5/Test/Aggregation.hs

@@ -1,6 +1,6 @@
 {-# LANGUAGE OverloadedStrings #-}
 
-module Test.Aggregation where
+module Test.Aggregation (spec) where
 
 import Test.Common
 import Test.Import
@@ -29,7 +29,7 @@ spec =
           usersAggResults = result >>= aggregations >>= toTerms "users"
           subAggResults = usersAggResults >>= (listToMaybe . buckets) >>= termsAggs >>= toTerms "age_agg"
           subAddResultsExists = isJust subAggResults
-      liftIO $ (subAddResultsExists) `shouldBe` True
+      liftIO $ subAddResultsExists `shouldBe` True
 
     it "returns cardinality aggregation results" $ withTestEnv $ do
       _ <- insertData

tests/V5/Test/BulkAPI.hs

@@ -1,6 +1,6 @@
 {-# LANGUAGE OverloadedStrings #-}
 
-module Test.BulkAPI where
+module Test.BulkAPI (spec) where
 
 import Test.Common
 import Test.Import
@@ -9,7 +9,7 @@ import qualified Data.Vector as V
 import qualified Lens.Micro.Aeson as LMA
 
 newtype BulkTest =
-  BulkTest { name :: Text }
+  BulkTest Text
   deriving (Eq, Show)
 
 instance ToJSON BulkTest where
@@ -25,7 +25,7 @@ instance FromJSON BulkTest where
 
 spec :: Spec
 spec =
-  describe "Bulk API" $ do
+  describe "Bulk API" $
     it "inserts all documents we request" $ withTestEnv $ do
       _ <- insertData
       let firstTest = BulkTest "blah"
@@ -84,7 +84,7 @@ spec =
             hitsTotal (searchHits sr) `shouldBe` 6
           let nameList :: [Text]
               nameList =
-                (hits (searchHits sr))
+                hits (searchHits sr)
                 ^.. traverse
                   . to hitSource
                   . _Just

tests/V5/Test/Documents.hs

@@ -14,14 +14,14 @@ spec =
       docInserted <- getDocument testIndex testMapping (DocId "1")
       let newTweet = eitherDecode
                      (responseBody docInserted) :: Either String (EsResult Tweet)
-      liftIO $ (fmap getSource newTweet `shouldBe` Right (Just patchedTweet))
+      liftIO $ fmap getSource newTweet `shouldBe` Right (Just patchedTweet)
 
     it "indexes, gets, and then deletes the generated document with a DocId containing a space" $ withTestEnv $ do
       _ <- insertWithSpaceInId
       docInserted <- getDocument testIndex testMapping (DocId "Hello World")
       let newTweet = eitherDecode
                      (responseBody docInserted) :: Either String (EsResult Tweet)
-      liftIO $ (fmap getSource newTweet `shouldBe` Right (Just exampleTweet))
+      liftIO $ fmap getSource newTweet `shouldBe` Right (Just exampleTweet)
 
     it "produces a parseable result when looking up a bogus document" $ withTestEnv $ do
       doc <- getDocument testIndex testMapping  (DocId "bogus")

tests/V5/Test/Generators.hs

@@ -36,8 +36,10 @@ instance Arbitrary UTCTime where
           <*> (fromRational . toRational <$> choose (0::Double, 86400))
 
 instance Arbitrary Day where
-    arbitrary = ModifiedJulianDay <$> (2000 +) <$> arbitrary
-    shrink    = (ModifiedJulianDay <$>) . shrink . toModifiedJulianDay
+    arbitrary =
+      ModifiedJulianDay . (2000 +) <$> arbitrary
+    shrink =
+      (ModifiedJulianDay <$>) . shrink . toModifiedJulianDay
 
 #if !MIN_VERSION_QuickCheck(2,9,0)
 instance Arbitrary a => Arbitrary (NonEmpty a) where

tests/V5/Test/Highlights.hs

@@ -7,28 +7,24 @@ import Test.Import
 
 import qualified Data.Map as M
 
+initHighlights :: Text -> BH IO (Either EsError (Maybe HitHighlight))
+initHighlights fieldName = do
+  _ <- insertData
+  _ <- insertOther
+  let query = QueryMatchQuery $ mkMatchQuery (FieldName fieldName) (QueryString "haskell")
+  let testHighlight = Highlights Nothing [FieldHighlight (FieldName fieldName) Nothing]
+  let search = mkHighlightSearch (Just query) testHighlight
+  searchTweetHighlight search
+
 spec :: Spec
 spec =
   describe "Highlights API" $ do
-
     it "returns highlight from query when there should be one" $ withTestEnv $ do
-      _ <- insertData
-      _ <- insertOther
-      let query = QueryMatchQuery $ mkMatchQuery (FieldName "message") (QueryString "haskell")
-      let testHighlight = Highlights Nothing [FieldHighlight (FieldName "message") Nothing]
-
-      let search = mkHighlightSearch (Just query) testHighlight
-      myHighlight <- searchTweetHighlight search
+      myHighlight <- initHighlights "message"
       liftIO $
         myHighlight `shouldBe` Right (Just (M.fromList [("message",["Use <em>haskell</em>!"])]))
 
     it "doesn't return highlight from a query when it shouldn't" $ withTestEnv $ do
-      _ <- insertData
-      _ <- insertOther
-      let query = QueryMatchQuery $ mkMatchQuery (FieldName "message") (QueryString "haskell")
-      let testHighlight = Highlights Nothing [FieldHighlight (FieldName "user") Nothing]
-
-      let search = mkHighlightSearch (Just query) testHighlight
-      myHighlight <- searchTweetHighlight search
+      myHighlight <- initHighlights "user"
       liftIO $
         myHighlight `shouldBe` Right Nothing

tests/V5/Test/JSON.hs

@@ -1,7 +1,7 @@
 {-# LANGUAGE OverloadedStrings   #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 
-module Test.JSON where
+module Test.JSON (spec) where
 
 import Test.Import
 

tests/V5/Test/Script.hs

@@ -10,7 +10,7 @@ import qualified Data.Map as M
 
 spec :: Spec
 spec =
-  describe "Script" $ do
+  describe "Script" $
     it "returns a transformed document based on the script field" $ withTestEnv $ do
       _ <- insertData
       let query = MatchAllQuery Nothing
@@ -32,4 +32,5 @@ spec =
         Right sr -> do
           let Just results =
                 hitFields (head (hits (searchHits sr)))
-          liftIO $ results `shouldBe` (HitFields (M.fromList [("test1", [Number 20000.0])]))
+          liftIO $
+            results `shouldBe` HitFields (M.fromList [("test1", [Number 20000.0])])

tests/V5/Test/Snapshots.hs

@@ -1,7 +1,7 @@
 {-# LANGUAGE RecordWildCards   #-}
 {-# LANGUAGE OverloadedStrings #-}
 
-module Test.Snapshots where
+module Test.Snapshots (spec) where
 
 import Test.Common
 import Test.Import
@@ -18,7 +18,7 @@ import Test.Generators ()
 
 spec :: Spec
 spec = do
-  describe "FsSnapshotRepo" $ do
+  describe "FsSnapshotRepo" $
     prop "SnapshotRepo laws" $ \fsr ->
       fromGSnapshotRepo (toGSnapshotRepo fsr) === Right (fsr :: FsSnapshotRepo)
 
@@ -149,7 +149,7 @@ canSnapshot :: IO Bool
 canSnapshot = do
   caresAboutRepos <- atleast es16
   repoPaths <- getRepoPaths
-  return (not caresAboutRepos || not (null (repoPaths)))
+  return (not caresAboutRepos || not (null repoPaths))
 
 withSnapshotRepo
     :: ( MonadMask m
@@ -197,5 +197,5 @@ withSnapshot srn sn = bracket_ alloc free
                                                    , snapIndices = Just (IndexList (testIndex :| []))
                                                    -- We don't actually need to back up any data
                                                    }
-    free = do
+    free =
       deleteSnapshot srn sn

tests/V5/Test/Sorting.hs

@@ -7,7 +7,7 @@ import Test.Import
 
 spec :: Spec
 spec =
-  describe "sorting" $ do
+  describe "sorting" $
     it "returns documents in the right order" $ withTestEnv $ do
       _ <- insertData
       _ <- insertOther

tests/V5/Test/SourceFiltering.hs

@@ -11,27 +11,27 @@ spec :: Spec
 spec =
   describe "Source filtering" $ do
 
-    it "doesn't include source when sources are disabled" $ withTestEnv $ do
+    it "doesn't include source when sources are disabled" $ withTestEnv $
       searchExpectSource
         NoSource
         (Left (EsError 500 "Source was missing"))
 
-    it "includes a source" $ withTestEnv $ do
+    it "includes a source" $ withTestEnv $
       searchExpectSource
         (SourcePatterns (PopPattern (Pattern "message")))
         (Right (Object (HM.fromList [("message", String "Use haskell!")])))
 
-    it "includes sources" $ withTestEnv $ do
+    it "includes sources" $ withTestEnv $
       searchExpectSource
         (SourcePatterns (PopPatterns [Pattern "user", Pattern "message"]))
         (Right (Object (HM.fromList [("user",String "bitemyapp"),("message", String "Use haskell!")])))
 
-    it "includes source patterns" $ withTestEnv $ do
+    it "includes source patterns" $ withTestEnv $
       searchExpectSource
         (SourcePatterns (PopPattern (Pattern "*ge")))
         (Right (Object (HM.fromList [("age", Number 10000),("message", String "Use haskell!")])))
 
-    it "excludes source patterns" $ withTestEnv $ do
+    it "excludes source patterns" $ withTestEnv $
       searchExpectSource
         (SourceIncludeExclude (Include [])
         (Exclude [Pattern "l*", Pattern "*ge", Pattern "postDate", Pattern "extra"]))

tests/V5/Test/Suggest.hs

@@ -7,7 +7,7 @@ import Test.Import
 
 spec :: Spec
 spec =
-  describe "Suggest" $ do
+  describe "Suggest" $
     it "returns a search suggestion using the phrase suggester" $ withTestEnv $ do
       _ <- insertData
       let query = QueryMatchNoneQuery

tests/V5/tests.hs

@@ -1,13 +1,8 @@
 {-# LANGUAGE CPP                        #-}
-{-# LANGUAGE DefaultSignatures          #-}
-{-# LANGUAGE DeriveDataTypeable         #-}
-{-# LANGUAGE DeriveGeneric              #-}
 {-# LANGUAGE FlexibleContexts           #-}
-{-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE OverloadedStrings          #-}
 {-# LANGUAGE RecordWildCards            #-}
 {-# LANGUAGE ScopedTypeVariables        #-}
-{-# LANGUAGE TemplateHaskell            #-}
 {-# LANGUAGE TypeOperators              #-}
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 #if __GLASGOW_HASKELL__ < 800
@@ -21,7 +16,7 @@ module Main where
 import           Test.Common
 import           Test.Import
 
-import           Prelude                         hiding (filter)
+import           Prelude
 
 import qualified Test.Aggregation as Aggregation
 import qualified Test.BulkAPI as Bulk
@@ -64,11 +59,11 @@ main = hspec $ do
       let errorResp = eitherDecode (responseBody res)
       liftIO (errorResp `shouldBe` Right (EsError 404 "no such index"))
 
-  describe "Monoid (SearchHits a)" $ do
+  describe "Monoid (SearchHits a)" $
     prop "abides the monoid laws" $ eq $
       prop_Monoid (T :: T (SearchHits ()))
 
-  describe "mkDocVersion" $ do
+  describe "mkDocVersion" $
     prop "can never construct an out of range docVersion" $ \i ->
       let res = mkDocVersion i
       in case res of
@@ -77,7 +72,7 @@ main = hspec $ do
                    (dv <= maxBound) .&&.
                    docVersionNumber dv === i
 
-  describe "getNodesInfo" $ do
+  describe "getNodesInfo" $
      it "fetches the responding node when LocalNode is used" $ withTestEnv $ do
        res <- getNodesInfo LocalNode
        liftIO $ case res of
@@ -87,7 +82,7 @@ main = hspec $ do
          Right NodesInfo {..} -> length nodesInfo `shouldBe` 1
          Left e -> expectationFailure ("Expected NodesInfo but got " <> show e)
 
-  describe "getNodesStats" $ do
+  describe "getNodesStats" $
      it "fetches the responding node when LocalNode is used" $ withTestEnv $ do
        res <- getNodesStats LocalNode
        liftIO $ case res of
@@ -97,7 +92,7 @@ main = hspec $ do
          Right NodesStats {..} -> length nodesStats `shouldBe` 1
          Left e -> expectationFailure ("Expected NodesStats but got " <> show e)
 
-  describe "Enum DocVersion" $ do
+  describe "Enum DocVersion" $
     it "follows the laws of Enum, Bounded" $ do
       evaluate (succ maxBound :: DocVersion) `shouldThrow` anyErrorCall
       evaluate (pred minBound :: DocVersion) `shouldThrow` anyErrorCall
@@ -107,11 +102,14 @@ main = hspec $ do
       enumFrom (pred maxBound :: DocVersion) `shouldBe` [pred maxBound, maxBound]
       enumFromThen minBound (pred maxBound :: DocVersion) `shouldBe` [minBound, pred maxBound]
 
-  describe "Scan & Scroll API" $ do
+  describe "Scan & Scroll API" $
     it "returns documents using the scan&scroll API" $ withTestEnv $ do
       _ <- insertData
       _ <- insertOther
-      let search = (mkSearch (Just $ MatchAllQuery Nothing) Nothing) { size = (Size 1) }
+      let search =
+            (mkSearch
+             (Just $ MatchAllQuery Nothing) Nothing)
+             { size = Size 1 }
       regular_search <- searchTweet search
       scan_search' <- scanSearch testIndex testMapping search :: BH IO [Hit Tweet]
       let scan_search = map hitSource scan_search'