hxtools/src-hxbrief/Main.hs

705 lines
28 KiB
Haskell

{-# OPTIONS_GHC -Wno-unused-imports #-}
{-# LANGUAGE MultiWayIf #-}
module Main
( main
)
where
import Control.Concurrent ( threadDelay )
import qualified Control.Concurrent.Async as A
import Control.Concurrent.MVar
import Control.Exception ( AsyncException(UserInterrupt)
, IOException
, bracket
, catch
, mask
, throwIO
, try
)
import Control.Monad ( forM_
, forever
, replicateM
, unless
, when
, zipWithM_
)
import Control.Monad.IO.Class ( MonadIO
, liftIO
)
import Control.Monad.Trans.State.Strict
( StateT(StateT)
, evalStateT
, execStateT
, get
, gets
, modify
, put
)
import qualified Data.Char as Char
import Data.List ( isInfixOf
, isPrefixOf
, isSuffixOf
)
import Data.Maybe ( listToMaybe
, mapMaybe
)
import Data.Text ( Text )
import qualified Data.Text as Text
import qualified Data.Text.IO as Text.IO
import qualified GHC.IO.Encoding
import Lens.Micro ( (<&>) )
import System.Clock ( Clock(RealtimeCoarse)
, TimeSpec
, diffTimeSpec
, getTime
, toNanoSecs
)
import qualified System.Console.ANSI as Ansi
import System.Console.Concurrent ( errorConcurrent
, flushConcurrentOutput
, outputConcurrent
, withConcurrentOutput
)
import System.Console.Regions ( ConsoleRegion
, RegionLayout(Linear)
, closeConsoleRegion
, displayConsoleRegions
, openConsoleRegion
, setConsoleRegion
)
import qualified System.Environment
import System.Exit ( exitSuccess
, exitWith
)
import System.IO ( Handle
, IOMode(WriteMode)
)
import qualified System.IO
import qualified System.Process as P
import qualified Text.PrettyPrint.HughesPJ as PP
import Text.Printf ( printf )
import Text.Read ( readMaybe )
import qualified UI.Butcher.Monadic as B
import Util
data StreamKind = StdOut | StdErr
deriving (Eq, Show)
data JoinMode
= JoinYield -- i.e. don't join: We want to yield that exact line
| JoinAll -- join with any other JoinAll-tagged lines/patterns
| JoinSpecific -- join with this pattern only
data JoinedInfo
= JoinedNot -- Line did not match any pattern
| JoinedYield -- Line matched a yield pattern, must be forwarded as-is
| JoinedAll Int
| Joined Int Text [Text] -- pattern, prefix
data KeepMode
= Drop -- dont forward
| Keep -- forward each line, apart from summaries
| Conflate -- summarize non-summarized lines as "*"
deriving (Eq, Show)
data Config = Config
{ c_label :: Text
, c_lines :: Int
, c_keepStdout :: KeepMode
, c_keepStderr :: KeepMode
, c_summarize :: [(JoinMode, Text)]
, c_outFile :: Maybe Handle
, c_errFile :: Maybe Handle
, c_sectionChar :: Maybe Char
, c_termSize :: Maybe (Int, Int)
}
data State = State
{ s_config :: Config
, s_regions :: [ConsoleRegion]
, s_history :: [(StreamKind, Text)]
, s_lines :: [(StreamKind, Text)]
, s_countOut :: Int
, s_countErr :: Int
, s_globalStart :: TimeSpec
, s_lastLineTime :: TimeSpec
, s_summary :: Maybe ((StreamKind, Text), JoinedInfo)
}
getTimeDiff :: Bool -> StateT State IO (Float, Float)
getTimeDiff updateCur = do
now <- liftIO $ getTime RealtimeCoarse
when updateCur $ modify $ \s -> s { s_lastLineTime = now }
s <- get
let diffNanos1 = toNanoSecs $ diffTimeSpec (s_globalStart s) now
let diffNanos2 = toNanoSecs $ diffTimeSpec (s_lastLineTime s) now
pure
( fromIntegral (diffNanos1 `div` 1000000) / (1000 :: Float)
, fromIntegral (diffNanos2 `div` 1000000) / (1000 :: Float)
)
stateLine :: Bool -> Bool -> StateT State IO Text
stateLine updateCur showCur = do
(diffFloat1, diffFloat2) <- getTimeDiff updateCur
s <- get
let outStr = if showCur && diffFloat2 > 1.0
then t $ printf
"waiting since %0.0fs … %0.1fs total, %i/%i lines stdout/stderr"
diffFloat2
diffFloat1
(s_countOut s)
(s_countErr s)
else t $ printf "%0.3fs total, %i lines stdout %i lines stderr"
diffFloat1
(s_countOut s)
(s_countErr s)
pure $ outStr
firstJust :: (a -> Maybe b) -> [a] -> Maybe b
firstJust f = listToMaybe . mapMaybe f
matchPattern :: Text -> Text -> Bool
matchPattern pat s = case Text.split (== '*') pat of
[] -> False
[exact] -> exact == s
[t1, t2] | Text.null t1 -> t2 `Text.isSuffixOf` s -- *foo
[t1, t2] | Text.null t2 -> t1 `Text.isPrefixOf` s -- foo*
[t1, t2] -> t1 `Text.isPrefixOf` s && t2 `Text.isSuffixOf` s -- foo*bar
[t1, t2, t3] | Text.null t1 && Text.null t3 -> t2 `Text.isInfixOf` s -- *foo*
_ -> undefined
dispatchLine :: (StreamKind, Text) -> StateT State IO ()
dispatchLine line@(kind, str) = do
conf <- gets s_config
liftIO $ case kind of
StdOut -> when (c_keepStdout conf /= Drop)
$ outputConcurrent (fReset <> str <> t "\n")
StdErr -> when (c_keepStderr conf /= Drop)
$ errorConcurrent (fReset <> str <> t "\n")
modify $ \s -> s { s_history = line : s_history s }
dispatchYielded :: (StreamKind, Text) -> StateT State IO ()
dispatchYielded line@(kind, str) = do
liftIO $ case kind of
StdOut -> outputConcurrent (fReset <> str <> t "\n")
StdErr -> errorConcurrent (fReset <> str <> t "\n")
modify $ \s -> s { s_history = line : s_history s }
showPattern :: Text -> Text
showPattern = Text.concatMap
(\case
'*' -> setFGColorVivid Ansi.Yellow <> t "" <> fReset
x -> Text.singleton x
)
dispatchPat :: StreamKind -> Int -> Text -> [Text] -> StateT State IO ()
dispatchPat oldKind i pat prefix = do
let kindStr = case oldKind of
StdOut -> t "stdout"
StdErr -> t "stderr"
let betterName =
let a = Text.unwords prefix
la = Text.length a
in if
| i == 1 && la < 70
-> a
| la > Text.length pat && la < 70
-> a <> setFGColorVivid Ansi.Yellow <> t "" <> fReset
| otherwise
-> showPattern pat
let prettyPat =
fGrey
<> t "("
<> t (show i)
<> t " lines "
<> kindStr
<> t ")"
<> fReset
<> t " "
<> betterName
<> t "\n"
conf <- gets s_config
liftIO $ case oldKind of
StdOut -> when (c_keepStdout conf /= Drop) $ outputConcurrent prettyPat
StdErr -> when (c_keepStderr conf /= Drop) $ errorConcurrent prettyPat
dispatchSkipped :: StreamKind -> Int -> StateT State IO ()
dispatchSkipped oldKind i = do
let kindStr = case oldKind of
StdOut -> t "stdout"
StdErr -> t "stderr"
let prettyPat :: Text =
fGrey
<> t "("
<> t (show i)
<> t " lines "
<> kindStr
<> t ") …skipped…"
<> fReset
<> t "\n"
conf <- gets s_config
liftIO $ case oldKind of
StdOut -> when (c_keepStdout conf /= Drop) $ outputConcurrent prettyPat
StdErr -> when (c_keepStderr conf /= Drop) $ errorConcurrent prettyPat
summarizeLines :: (StreamKind, Text) -> StateT State IO ()
summarizeLines cur@(kind, line) = do
s <- get
let conf = s_config s
let match = firstJust
(\joiner@(_, pat) ->
if matchPattern pat line then Just joiner else Nothing
)
(c_summarize conf ++ case kind of
StdOut -> [ (JoinAll, t "*") | c_keepStdout conf == Conflate ]
StdErr -> [ (JoinAll, t "*") | c_keepStderr conf == Conflate ]
)
case (s_summary s, match) of
(Nothing, _) -> put s
{ s_summary = Just
( cur
, case match of
Nothing -> JoinedNot
Just (JoinYield , _ ) -> JoinedYield
Just (JoinAll , _ ) -> JoinedAll 1
Just (JoinSpecific, pat) -> Joined 1 pat (Text.words line)
)
}
(Just (oldLine, JoinedNot), _) -> do
dispatchLine oldLine
put s
{ s_summary = Just
( cur
, case match of
Nothing -> JoinedNot
Just (JoinYield , _ ) -> JoinedYield
Just (JoinAll , _ ) -> JoinedAll 1
Just (JoinSpecific, pat) -> Joined 1 pat (Text.words line)
)
}
(Just (oldLine, JoinedYield), Nothing) -> do
dispatchYielded oldLine
put s { s_summary = Just (cur, JoinedNot) }
(Just (oldLine, JoinedYield), _) -> do
dispatchYielded oldLine
put s
{ s_summary = Just
( cur
, case match of
Nothing -> JoinedNot
Just (JoinAll , _ ) -> JoinedAll 1
Just (JoinSpecific, pat) -> Joined 1 pat (Text.words line)
Just (JoinYield , _ ) -> JoinedYield
)
}
(Just ((oldKind, _), JoinedAll i), Nothing) -> do
dispatchSkipped oldKind i
put s { s_summary = Just (cur, JoinedNot) }
(Just ((oldKind, _), Joined i oldPat oldPrefix), Nothing) -> do
dispatchPat oldKind i oldPat oldPrefix
put s { s_summary = Just (cur, JoinedNot) }
(Just ((oldKind, _), JoinedAll i), Just joiner) -> case joiner of
(JoinYield, _pat) -> do
dispatchSkipped oldKind i
put s { s_summary = Just (cur, JoinedYield) }
(JoinAll, _)
| kind == oldKind -> do
put s { s_summary = Just (cur, JoinedAll (i + 1)) }
| otherwise -> do
dispatchSkipped oldKind i
put s { s_summary = Just (cur, JoinedAll 1) }
(JoinSpecific, pat) -> do
dispatchSkipped oldKind i
put s { s_summary = Just (cur, Joined 1 pat (Text.words line)) }
(Just ((oldKind, _), Joined i oldPat oldPrefix), Just joiner) ->
case joiner of
(JoinSpecific, pat) | oldPat == pat && kind == oldKind -> do
let newPrefix =
let go [] = []
go ((a, b) : rest) | a == b = a : go rest
| otherwise = []
in go $ zip oldPrefix (Text.words line)
put s { s_summary = Just (cur, Joined (i + 1) pat newPrefix) }
_ -> do
dispatchPat oldKind i oldPat oldPrefix
put s
{ s_summary = Just
( cur
, case joiner of
(JoinYield , _ ) -> JoinedYield
(JoinAll , _ ) -> JoinedAll 1
(JoinSpecific, pat) -> Joined 1 pat (Text.words line)
)
}
processLine :: (StreamKind, Text) -> State -> IO State
processLine newPair@(kind, _) = execStateT $ do
conf <- gets s_config
modify $ \s -> s { s_lines = newPair : s_lines s }
do
s0 <- get
let (keep, over) = splitAt (c_lines conf - 1) (s_lines s0)
put s0 { s_lines = keep }
over `forM_` summarizeLines
case kind of
StdOut -> modify $ \s -> s { s_countOut = s_countOut s + 1 }
StdErr -> modify $ \s -> s { s_countErr = s_countErr s + 1 }
curLines <- gets s_lines
prettyLinesWithSummary <- do
let ellipse :: Text -> Text
ellipse input =
let inputLength = Text.length input
in case c_termSize conf of
Nothing -> input
Just (_, w) -> if inputLength <= w - 2
then input
else Text.take (w - 3) input <> t ""
let prettyLines = reverse $ take (c_lines conf) curLines <&> \case
(StdOut, line) -> fWhiteDis <> t "" <> fReset <> ellipse line
(StdErr, line) -> fRedDis <> t "" <> fReset <> ellipse line
summary <- gets s_summary
pure $ case summary of
Nothing -> prettyLines
Just ((StdOut, line), JoinedNot) ->
(fWhiteDis <> t "" <> fReset <> ellipse line) : prettyLines
Just ((StdOut, line), JoinedAll 1) ->
(fWhiteDis <> t "" <> fReset <> ellipse line) : prettyLines
Just ((StdOut, _line), JoinedAll i) ->
( fWhiteDis
<> t ""
<> fGrey
<> t "…skipped… ("
<> t (show i)
<> t " lines)"
<> fReset
)
: prettyLines
Just ((StdOut, line), Joined 1 _ _) ->
(fWhiteDis <> t "" <> fReset <> ellipse line) : prettyLines
Just ((StdOut, _), Joined i pat _) ->
( fWhiteDis
<> t ""
<> fReset
<> showPattern pat
<> fGrey
<> t " ("
<> t (show i)
<> t " lines)"
<> fReset
)
: prettyLines
Just ((StdOut, line), JoinedYield) ->
(fWhiteDis <> t "" <> fReset <> ellipse line) : prettyLines
Just ((StdErr, line), JoinedNot) ->
(fRedDis <> t "" <> fReset <> ellipse line) : prettyLines
Just ((StdErr, line), JoinedYield) ->
(fRedDis <> t "" <> fReset <> ellipse line) : prettyLines
Just ((StdErr, line), JoinedAll 1) ->
(fRedDis <> t "" <> fReset <> ellipse line) : prettyLines
Just ((StdErr, _line), JoinedAll i) ->
( fRedDis
<> t ""
<> fGrey
<> t "…skipped… ("
<> t (show i)
<> t " lines)"
<> fReset
)
: prettyLines
Just ((StdErr, line), Joined 1 _ _) ->
(fRedDis <> t "" <> fReset <> ellipse line) : prettyLines
Just ((StdErr, _), Joined i pat _) ->
( fRedDis
<> t ""
<> fReset
<> showPattern pat
<> fGrey
<> t " ("
<> t (show i)
<> t " lines)"
<> fReset
)
: prettyLines
let showCount = min (c_lines conf) (length prettyLinesWithSummary)
do -- make sure we have enough regions allocated
let need = showCount + 1
got <- gets (length . s_regions)
when (need > got) $ do
new <- liftIO $ replicateM (need - got) (openConsoleRegion Linear)
modify $ \s -> s { s_regions = s_regions s ++ new }
do
regions <- gets s_regions
liftIO $ zipWithM_
(\x region -> do
setConsoleRegion region x
)
prettyLinesWithSummary
(take showCount regions)
updateStateLine True
updateStateLine :: Bool -> StateT State IO ()
updateStateLine updateCur = do
line <- stateLine updateCur True
s <- get
liftIO $ setConsoleRegion
(last $ s_regions s)
( fGrey
<> t "╰─ … "
<> line
<> t ", "
<> setFGColorVivid Ansi.Blue
<> (c_label $ s_config s)
<> fReset
)
quoteIfSpaces :: String -> String
quoteIfSpaces s = if any Char.isSpace s then "\"" ++ s ++ "\"" else s
main :: IO ()
main = B.mainFromCmdParser $ do
B.reorderStart
numLines :: Int <- B.addFlagReadParam "n" ["lines"] "LINES" (B.flagDefault 5)
maxLines <- B.addSimpleBoolFlag "" ["max-lines"] mempty
keepStdout <- B.addSimpleBoolFlag "" ["keep-out"] mempty
keepStderr <- B.addSimpleBoolFlag "" ["keep-err"] mempty
keepBoth <- B.addSimpleBoolFlag "" ["keep"] mempty
dropStdout <- B.addSimpleBoolFlag "" ["drop-out"] mempty
dropStderr <- B.addSimpleBoolFlag "" ["drop-err"] mempty
dropBoth <- B.addSimpleBoolFlag "" ["drop"] mempty
conflateStdout <- B.addSimpleBoolFlag "" ["conflate-out"] mempty
conflateStderr <- B.addSimpleBoolFlag "" ["conflate-err"] mempty
conflateBoth <- B.addSimpleBoolFlag "" ["conflate"] mempty
summarize <- B.addFlagStringParams "s" ["summarize"] "PATTERN" mempty
skip <- B.addFlagStringParams "x" ["skip"] "PATTERN" mempty
label <- B.addFlagStringParams "" ["label"] "STRING" mempty
yield <- B.addFlagStringParams "y" ["yield"] "PATTERN" mempty
omitSummary <- B.addSimpleBoolFlag "" ["omit-summary"] mempty
tee <- B.addFlagStringParams
""
["tee"]
"BASENAMEBASEPATH"
( B.flagHelp
$ PP.text "Write copy of stdout/stderr to BASEPATH.{out/err}.txt"
)
teeBoth <- B.addFlagStringParams
""
["tee-both"]
"FILENAMEFILEPATH"
(B.flagHelp $ PP.text "Write copy of stdout and stderr to FILEPATH")
-- section <- B.addSimpleBoolFlag "" ["section"] mempty
B.reorderStop
rest <- B.addParamRestOfInputRaw "COMMAND" mempty <&> \case
B.InputString ('-' : '-' : ' ' : r) -> words r
B.InputString ('-' : '-' : r) -> words r
B.InputString (r ) -> words r
B.InputArgs ("--" : r ) -> r
B.InputArgs r -> r
helpDesc <- B.peekCmdDesc
B.addCmdImpl $ do
when (null rest) $ do
print $ B.ppHelpShallow helpDesc
exitSuccess
let (restPath : restArgs) = rest
recursiveMay <- System.Environment.lookupEnv "IN_HXBRIEF"
case recursiveMay of
Just _ -> do
-- TODO: Arguably, we should do _something_ here, e.g. summarizing
-- and filtering etc.
P.callProcess restPath restArgs
exitSuccess
Nothing -> pure ()
let mainBracket = bracket
(do
System.IO.hSetEcho System.IO.stdin False
System.IO.hSetBuffering System.IO.stdin System.IO.LineBuffering
GHC.IO.Encoding.setLocaleEncoding GHC.IO.Encoding.utf8
case (tee, teeBoth) of
([] , []) -> pure (Nothing, Nothing)
([teeName], []) -> do
h1 <- System.IO.openFile (teeName ++ ".out.txt") WriteMode
h2 <- System.IO.openFile (teeName ++ ".err.txt") WriteMode
pure (Just h1, Just h2)
([], [teeBothName]) -> do
h <- System.IO.openFile teeBothName WriteMode
pure (Just h, Just h)
_ -> error "too many/conflicting tee arguments!"
)
(\teeHandles -> do
fst teeHandles `forM_` System.IO.hClose
snd teeHandles `forM_` System.IO.hClose
-- ^ may be closed already, this is not an error according to docs!
System.IO.hSetEcho System.IO.stdin True
)
withConcurrentOutput $ mainBracket $ \teeHandles -> mask $ \restore -> do
-- restore $ GHC.IO.Encoding.setFileSystemEncoding GHC.IO.Encoding.utf8
-- restore $ System.IO.hSetEncoding System.IO.stdout GHC.IO.Encoding.utf8
-- restore $ System.IO.hSetEncoding System.IO.stderr GHC.IO.Encoding.utf8
termSizeMay <- restore $ do
support <- Ansi.hSupportsANSI System.IO.stdin
if support
then Ansi.getTerminalSize
else do
envLines <- System.Environment.lookupEnv "LINES"
envCols <- System.Environment.lookupEnv "COLUMNS"
pure $ (,) <$> (envLines >>= readMaybe) <*> (envCols >>= readMaybe)
let stdoutCheckCount =
length
$ [ () | keepStdout || keepBoth ]
++ [ () | conflateStdout || conflateBoth ]
++ [ () | dropStdout || dropBoth ]
let stderrCheckCount =
length
$ [ () | keepStderr || keepBoth ]
++ [ () | conflateStderr || conflateBoth ]
++ [ () | dropStderr || dropBoth ]
adjustedNumLines <- case termSizeMay of
Just (termLines, _) | maxLines -> pure $ max 1 (termLines - 3)
Just (termLines, _) | termLines < numLines + 3 -> do
let actual = max 1 (termLines - 3)
errorConcurrent
$ "Warning: output is too small, only showing "
++ show actual
++ " lines!\n"
pure actual
_ -> pure numLines
(lastLine, ecMay) <- displayConsoleRegions $ do
initialState <- do
startTime <- getTime RealtimeCoarse
line0 <- openConsoleRegion Linear
pure State
{ s_config = Config
{ c_label = case label of
[] ->
let full = unwords $ map quoteIfSpaces rest
in t $ if length full < 80 then full else head rest
[labelStr] -> t labelStr
_ -> error "too many labels!"
, c_lines = adjustedNumLines
, c_keepStdout = if
| stdoutCheckCount > 1 -> error
"too many keep/drop/conflate for stdout!"
| keepStdout || keepBoth -> Keep
| conflateStdout || conflateBoth -> Conflate
| dropStdout || dropBoth -> Drop
| otherwise -> if null summarize
then Drop
else Conflate
, c_keepStderr = if
| stderrCheckCount > 1 -> error
"too many keep/drop/conflate for stderr!"
| keepStderr || keepBoth -> Keep
| conflateStderr || conflateBoth -> Conflate
| dropStderr || dropBoth -> Drop
| otherwise -> Keep
, c_summarize = (yield <&> \x -> (JoinYield, t x))
++ (summarize <&> \x -> (JoinSpecific, t x))
++ (skip <&> \x -> (JoinAll, t x))
, c_outFile = Nothing
, c_errFile = Nothing
, c_sectionChar = Nothing -- if section then Just '#' else Nothing
, c_termSize = termSizeMay
}
, s_regions = [line0]
, s_history = []
, s_lines = []
, s_countOut = 0
, s_countErr = 0
, s_globalStart = startTime
, s_lastLineTime = startTime
, s_summary = Nothing
}
stateVar :: MVar State <- newMVar initialState
let inHandler inp =
let go = do
x <- try getLine
case x of
Left (_ :: IOException) -> System.IO.hClose inp
Right line -> do
System.IO.hPutStrLn inp line
System.IO.hFlush inp
go
in go
let outHandler out = forever $ do
x <- Text.filter (/= '\r') <$> Text.IO.hGetLine out
fst teeHandles `forM_` \h -> Text.IO.hPutStrLn h x
modifyMVar_ stateVar (processLine (StdOut, x))
let errHandler err = forever $ do
x <- Text.filter (/= '\r') <$> Text.IO.hGetLine err
snd teeHandles `forM_` \h -> Text.IO.hPutStrLn h x
modifyMVar_ stateVar (processLine (StdErr, x))
let tickHandler = forever $ do
threadDelay 333333
modifyMVar_ stateVar $ execStateT $ updateStateLine False
innerEnv <- do
env <- System.Environment.getEnvironment
pure (env ++ [("IN_HXBRIEF", "1")])
let mainBlock =
P.withCreateProcess
((P.proc restPath restArgs) { P.std_in = P.CreatePipe
, P.std_out = P.CreatePipe
, P.std_err = P.CreatePipe
, P.env = Just innerEnv
}
)
$ \(Just inp) (Just out) (Just err) hdl -> do
A.withAsync (inHandler inp) $ \inAsync ->
A.withAsync (outHandler out) $ \outAsync ->
A.withAsync (errHandler err) $ \errAsync ->
A.withAsync tickHandler $ \_tickAsync -> do
ec <- P.waitForProcess hdl
A.cancel inAsync
_a <- A.waitCatch outAsync
_b <- A.waitCatch errAsync
pure (Just ec)
ecMay <- restore mainBlock `catch` (\UserInterrupt -> pure Nothing)
modifyMVar_ stateVar $ execStateT $ do
finalLines <- gets s_lines
countOut <- gets s_countOut
countErr <- gets s_countErr
if countOut == 0 && countErr == 1
then do
modify
$ \s -> s { s_config = (s_config s) { c_keepStderr = Keep } }
reverse finalLines `forM_` dispatchLine
else do
-- we leave the lines in final state, but process them
reverse finalLines `forM_` summarizeLines
gets s_summary >>= \case
Nothing -> pure ()
Just (line , JoinedNot ) -> dispatchLine line
Just (line , JoinedYield) -> dispatchYielded line
Just ((kind, _), JoinedAll i) -> dispatchSkipped kind i
Just ((kind, _), Joined i pat prefix) ->
dispatchPat kind i pat prefix
finalState <- takeMVar stateVar
line <- evalStateT (stateLine False False) finalState
s_regions finalState `forM_` \r -> closeConsoleRegion r
let prefix =
fGrey
<> line
<> t ", "
<> setFGColorVivid Ansi.Blue
<> (c_label $ s_config finalState)
<> fGrey
let lastLine = case ecMay of
Nothing -> prefix <> t ", UserInterrupt\n" <> fReset
Just ec -> prefix <> t ", ec=" <> showEC ec <> t "\n"
pure (lastLine, ecMay)
flushConcurrentOutput
unless omitSummary $ errorConcurrent lastLine
case ecMay of
Nothing -> throwIO UserInterrupt -- essentially re-throw
Just ec -> exitWith ec