diff --git a/maintainers/scripts/haskell/hydra-report.hs b/maintainers/scripts/haskell/hydra-report.hs
new file mode 100755
index 00000000000..471447e60d5
--- /dev/null
+++ b/maintainers/scripts/haskell/hydra-report.hs
@@ -0,0 +1,321 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -p "haskellPackages.ghcWithPackages (p: [p.aeson p.req])"
+#! nix-shell -p hydra-unstable
+#! nix-shell -i runhaskell
+
+{-
+
+The purpose of this script is
+
+1) download the state of the nixpkgs/haskell-updates job from hydra (with get-report)
+2) print a summary of the state suitable for pasting into a github comment (with ping-maintainers)
+3) print a list of broken packages suitable for pasting into configuration-hackage2nix.yaml
+
+Because step 1) is quite expensive and takes roughly ~5 minutes the result is cached in a json file in XDG_CACHE.
+
+-}
+{-# LANGUAGE BlockArguments #-}
+{-# LANGUAGE DeriveAnyClass #-}
+{-# LANGUAGE DeriveGeneric #-}
+{-# LANGUAGE DuplicateRecordFields #-}
+{-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE MultiWayIf #-}
+{-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE TupleSections #-}
+{-# OPTIONS_GHC -Wall #-}
+
+import Control.Monad (forM_, (<=<))
+import Control.Monad.Trans (MonadIO (liftIO))
+import Data.Aeson (
+ FromJSON,
+ ToJSON,
+ decodeFileStrict',
+ eitherDecodeStrict',
+ encodeFile,
+ )
+import Data.Foldable (Foldable (toList), foldl')
+import Data.Function ((&))
+import Data.Functor ((<&>))
+import Data.List.NonEmpty (NonEmpty, nonEmpty)
+import qualified Data.List.NonEmpty as NonEmpty
+import Data.Map.Strict (Map)
+import qualified Data.Map.Strict as Map
+import Data.Maybe (fromMaybe, mapMaybe)
+import Data.Monoid (Sum (Sum, getSum))
+import Data.Sequence (Seq)
+import qualified Data.Sequence as Seq
+import Data.Set (Set)
+import qualified Data.Set as Set
+import Data.Text (Text)
+import qualified Data.Text as Text
+import Data.Text.Encoding (encodeUtf8)
+import Data.Time (defaultTimeLocale, formatTime, getCurrentTime)
+import Data.Time.Clock (UTCTime)
+import GHC.Generics (Generic)
+import Network.HTTP.Req (
+ GET (GET),
+ NoReqBody (NoReqBody),
+ defaultHttpConfig,
+ header,
+ https,
+ jsonResponse,
+ req,
+ responseBody,
+ responseTimeout,
+ runReq,
+ (/:),
+ )
+import System.Directory (XdgDirectory (XdgCache), getXdgDirectory)
+import System.Environment (getArgs)
+import System.Process (readProcess)
+import Prelude hiding (id)
+import qualified Prelude
+
+newtype JobsetEvals = JobsetEvals
+ { evals :: Seq Eval
+ }
+ deriving (Generic, ToJSON, FromJSON, Show)
+
+newtype Nixpkgs = Nixpkgs {revision :: Text}
+ deriving (Generic, ToJSON, FromJSON, Show)
+
+newtype JobsetEvalInputs = JobsetEvalInputs {nixpkgs :: Nixpkgs}
+ deriving (Generic, ToJSON, FromJSON, Show)
+
+data Eval = Eval
+ { id :: Int
+ , jobsetevalinputs :: JobsetEvalInputs
+ }
+ deriving (Generic, ToJSON, FromJSON, Show)
+
+data Build = Build
+ { job :: Text
+ , buildstatus :: Maybe Int
+ , finished :: Int
+ , id :: Int
+ , nixname :: Text
+ , system :: Text
+ , jobsetevals :: Seq Int
+ }
+ deriving (Generic, ToJSON, FromJSON, Show)
+
+main :: IO ()
+main = do
+ args <- getArgs
+ case args of
+ ["get-report"] -> getBuildReports
+ ["ping-maintainers"] -> printMaintainerPing
+ ["mark-broken-list"] -> printMarkBrokenList
+ _ -> putStrLn "Usage: get-report | ping-maintainers | mark-broken-list"
+
+reportFileName :: IO FilePath
+reportFileName = getXdgDirectory XdgCache "haskell-updates-build-report.json"
+
+showT :: Show a => a -> Text
+showT = Text.pack . show
+
+getBuildReports :: IO ()
+getBuildReports = runReq defaultHttpConfig do
+ evalMay <- Seq.lookup 0 . evals <$> myReq (https "hydra.nixos.org" /: "jobset" /: "nixpkgs" /: "haskell-updates" /: "evals") mempty
+ eval@Eval{id} <- maybe (liftIO $ fail "No Evalution found") pure evalMay
+ liftIO . putStrLn $ "Fetching evaluation " <> show id <> " from Hydra. This might take a few minutes..."
+ buildReports :: Seq Build <- myReq (https "hydra.nixos.org" /: "eval" /: showT id /: "builds") (responseTimeout 600000000)
+ liftIO do
+ fileName <- reportFileName
+ putStrLn $ "Finished fetching all builds from Hydra, saving report as " <> fileName
+ now <- getCurrentTime
+ encodeFile fileName (eval, now, buildReports)
+ where
+ myReq query option = responseBody <$> req GET query NoReqBody jsonResponse (header "User-Agent" "hydra-report.hs/v1 (nixpkgs;maintainers/scripts/haskell)" <> option)
+
+hydraEvalCommand :: FilePath
+hydraEvalCommand = "hydra-eval-jobs"
+hydraEvalParams :: [String]
+hydraEvalParams = ["-I", ".", "pkgs/top-level/release-haskell.nix"]
+handlesCommand :: FilePath
+handlesCommand = "nix-instantiate"
+handlesParams :: [String]
+handlesParams = ["--eval", "--strict", "--json", "-"]
+handlesExpression :: String
+handlesExpression = "with import ./. {}; with lib; zipAttrsWith (_: builtins.head) (mapAttrsToList (_: v: if v ? github then { \"${v.email}\" = v.github; } else {}) (import maintainers/maintainer-list.nix))"
+
+newtype Maintainers = Maintainers {maintainers :: Maybe Text} deriving (Generic, ToJSON, FromJSON)
+
+type HydraJobs = Map Text Maintainers
+type MaintainerMap = Map Text (NonEmpty Text)
+
+getMaintainerMap :: IO MaintainerMap
+getMaintainerMap = do
+ hydraJobs :: HydraJobs <- get hydraEvalCommand hydraEvalParams "" "Failed to decode hydra-eval-jobs output: "
+ handlesMap :: Map Text Text <- get handlesCommand handlesParams handlesExpression "Failed to decode nix output for lookup of github handles: "
+ pure $ hydraJobs & Map.mapMaybe (nonEmpty . mapMaybe (`Map.lookup` handlesMap) . Text.splitOn ", " . fromMaybe "" . maintainers)
+ where
+ get c p i e = readProcess c p i <&> \x -> either (error . (<> " Raw:'" <> take 1000 x <> "'") . (e <>)) Prelude.id . eitherDecodeStrict' . encodeUtf8 . Text.pack $ x
+
+-- BuildStates are sorted by subjective importance/concerningness
+data BuildState = Failed | DependencyFailed | OutputLimitExceeded | Unknown (Maybe Int) | TimedOut | Canceled | Unfinished | Success deriving (Show, Eq, Ord)
+
+icon :: BuildState -> Text
+icon = \case
+ Failed -> ":x:"
+ DependencyFailed -> ":heavy_exclamation_mark:"
+ OutputLimitExceeded -> ":warning:"
+ Unknown x -> "unknown code " <> showT x
+ TimedOut -> ":hourglass::no_entry_sign:"
+ Canceled -> ":no_entry_sign:"
+ Unfinished -> ":hourglass_flowing_sand:"
+ Success -> ":heavy_check_mark:"
+
+platformIcon :: Platform -> Text
+platformIcon (Platform x) = case x of
+ "x86_64-linux" -> ":penguin:"
+ "aarch64-linux" -> ":iphone:"
+ "x86_64-darwin" -> ":apple:"
+ _ -> x
+
+data BuildResult = BuildResult {state :: BuildState, id :: Int} deriving (Show, Eq, Ord)
+newtype Platform = Platform {platform :: Text} deriving (Show, Eq, Ord)
+newtype Table row col a = Table (Map (row, col) a)
+type StatusSummary = Map Text (Table Text Platform BuildResult, Set Text)
+
+instance (Ord row, Ord col, Semigroup a) => Semigroup (Table row col a) where
+ Table l <> Table r = Table (Map.unionWith (<>) l r)
+instance (Ord row, Ord col, Semigroup a) => Monoid (Table row col a) where
+ mempty = Table Map.empty
+instance Functor (Table row col) where
+ fmap f (Table a) = Table (fmap f a)
+instance Foldable (Table row col) where
+ foldMap f (Table a) = foldMap f a
+
+buildSummary :: MaintainerMap -> Seq Build -> StatusSummary
+buildSummary maintainerMap = foldl (Map.unionWith unionSummary) Map.empty . fmap toSummary
+ where
+ unionSummary (Table l, l') (Table r, r') = (Table $ Map.union l r, l' <> r')
+ toSummary Build{finished, buildstatus, job, id, system} = Map.singleton name (Table (Map.singleton (set, Platform system) (BuildResult state id)), maintainers)
+ where
+ state :: BuildState
+ state = case (finished, buildstatus) of
+ (0, _) -> Unfinished
+ (_, Just 0) -> Success
+ (_, Just 4) -> Canceled
+ (_, Just 7) -> TimedOut
+ (_, Just 2) -> DependencyFailed
+ (_, Just 1) -> Failed
+ (_, Just 11) -> OutputLimitExceeded
+ (_, i) -> Unknown i
+ packageName = fromMaybe job (Text.stripSuffix ("." <> system) job)
+ splitted = nonEmpty $ Text.splitOn "." packageName
+ name = maybe packageName NonEmpty.last splitted
+ set = maybe "" (Text.intercalate "." . NonEmpty.init) splitted
+ maintainers = maybe mempty (Set.fromList . toList) (Map.lookup job maintainerMap)
+
+readBuildReports :: IO (Eval, UTCTime, Seq Build)
+readBuildReports = do
+ file <- reportFileName
+ fromMaybe (error $ "Could not decode " <> file) <$> decodeFileStrict' file
+
+sep :: Text
+sep = " | "
+joinTable :: [Text] -> Text
+joinTable t = sep <> Text.intercalate sep t <> sep
+
+type NumSummary = Table Platform BuildState Int
+
+printTable :: (Ord rows, Ord cols) => Text -> (rows -> Text) -> (cols -> Text) -> (entries -> Text) -> Table rows cols entries -> [Text]
+printTable name showR showC showE (Table mapping) = joinTable <$> (name : map showC cols) : replicate (length cols + sepsInName + 1) "---" : map printRow rows
+ where
+ sepsInName = Text.count "|" name
+ printRow row = showR row : map (\col -> maybe "" showE (Map.lookup (row, col) mapping)) cols
+ rows = toList $ Set.fromList (fst <$> Map.keys mapping)
+ cols = toList $ Set.fromList (snd <$> Map.keys mapping)
+
+printJob :: Int -> Text -> (Table Text Platform BuildResult, Text) -> [Text]
+printJob evalId name (Table mapping, maintainers) =
+ if length sets <= 1
+ then map printSingleRow sets
+ else ["- [ ] " <> makeJobSearchLink "" name <> " " <> maintainers] <> map printRow sets
+ where
+ printRow set = " - " <> printState set <> " " <> makeJobSearchLink set (if Text.null set then "toplevel" else set)
+ printSingleRow set = "- [ ] " <> printState set <> " " <> makeJobSearchLink set (makePkgName set) <> " " <> maintainers
+ makePkgName set = (if Text.null set then "" else set <> ".") <> name
+ printState set = Text.intercalate " " $ map (\pf -> maybe "" (label pf) $ Map.lookup (set, pf) mapping) platforms
+ makeJobSearchLink set linkLabel= makeSearchLink evalId linkLabel (makePkgName set <> ".") -- Append '.' to the search query to prevent e.g. "hspec." matching "hspec-golden.x86_64-linux"
+ sets = toList $ Set.fromList (fst <$> Map.keys mapping)
+ platforms = toList $ Set.fromList (snd <$> Map.keys mapping)
+ label pf (BuildResult s i) = "[[" <> platformIcon pf <> icon s <> "]](https://hydra.nixos.org/build/" <> showT i <> ")"
+
+makeSearchLink :: Int -> Text -> Text -> Text
+makeSearchLink evalId linkLabel query = "[" <> linkLabel <> "](" <> "https://hydra.nixos.org/eval/" <> showT evalId <> "?filter=" <> query <> ")"
+
+statusToNumSummary :: StatusSummary -> NumSummary
+statusToNumSummary = fmap getSum . foldMap (fmap Sum . jobTotals)
+
+jobTotals :: (Table Text Platform BuildResult, a) -> Table Platform BuildState Int
+jobTotals (Table mapping, _) = getSum <$> Table (Map.foldMapWithKey (\(_, platform) (BuildResult buildstate _) -> Map.singleton (platform, buildstate) (Sum 1)) mapping)
+
+details :: Text -> [Text] -> [Text]
+details summary content = ["" <> summary <> "
", ""] <> content <> ["