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cln: hlint: Clean up some examples of using sortOn.

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Stephen Morgan 2021-08-27 22:44:05 +10:00 committed by Simon Michael
parent b7bf780c52
commit 35be02a4f3
3 changed files with 9 additions and 14 deletions
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14
hledger/Hledger/Cli/CliOptions.hs
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@ -75,9 +75,8 @@ import Data.Default
import Data.Either (isRight)
import Data.Functor.Identity (Identity)
import "base-compat-batteries" Data.List.Compat
import Data.List.Extra (nubSort)
import Data.List.Extra (groupSortOn, nubSort)
import Data.List.Split (splitOneOf)
import Data.Ord
import Data.Maybe
--import Data.String.Here
-- import Data.Text (Text)
@ -662,12 +661,11 @@ registerWidthsFromOpts CliOpts{width_=Just s} =
hledgerAddons :: IO [String]
hledgerAddons = do
-- past bug generator
as1 <- hledgerExecutablesInPath -- ["hledger-check","hledger-check-dates","hledger-check-dates.hs","hledger-check.hs","hledger-check.py"]
let as2 = map stripPrognamePrefix as1 -- ["check","check-dates","check-dates.hs","check.hs","check.py"]
let as3 = sortBy (comparing takeBaseName) as2 -- ["check","check.hs","check.py","check-dates","check-dates.hs"]
let as4 = groupBy (\a b -> takeBaseName a == takeBaseName b) as3 -- [["check","check.hs","check.py"],["check-dates","check-dates.hs"]]
let as5 = concatMap dropRedundantSourceVersion as4 -- ["check","check.hs","check.py","check-dates"]
return as5
as1 <- hledgerExecutablesInPath -- ["hledger-check","hledger-check-dates","hledger-check-dates.hs","hledger-check.hs","hledger-check.py"]
let as2 = map stripPrognamePrefix as1 -- ["check","check-dates","check-dates.hs","check.hs","check.py"]
let as3 = groupSortOn takeBaseName as2 -- [["check","check.hs","check.py"],["check-dates","check-dates.hs"]]
let as4 = concatMap dropRedundantSourceVersion as3 -- ["check","check.hs","check.py","check-dates"]
return as4
stripPrognamePrefix = drop (length progname + 1)

7
hledger/Hledger/Cli/Commands/Diff.hs
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@ -12,7 +12,7 @@ module Hledger.Cli.Commands.Diff (
,diff
) where
import Data.List ((\\), groupBy, nubBy, sortBy)
import Data.List.Extra ((\\), groupSortOn, nubBy, sortBy)
import Data.Function (on)
import Data.Ord (comparing)
import Data.Maybe (fromJust)
@ -56,14 +56,11 @@ allPostingsWithPath j = do
(pidx, p) <- zip [0..] $ tpostings txn
return PostingWithPath { ppposting = p, pptxnidx = txnidx, pppidx = pidx }
binBy :: Ord b => (a -> b) -> [a] -> [[a]]
binBy f = groupBy ((==) `on` f) . sortBy (comparing f)
combine :: ([a], [b]) -> [Either a b]
combine (ls, rs) = map Left ls ++ map Right rs
combinedBinBy :: Ord b => (a -> b) -> ([a], [a]) -> [([a], [a])]
combinedBinBy f = map partitionEithers . binBy (either f f) . combine
combinedBinBy f = map partitionEithers . groupSortOn (either f f) . combine
greedyMaxMatching :: (Eq a, Eq b) => [(a,b)] -> [(a,b)]
greedyMaxMatching = greedyMaxMatching' []

2
tools/listbydeps.hs
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@ -56,5 +56,5 @@ main = do [ base, pkgFile ] <- getArgs
mods <- mapM (allDeps base) pkgs
let deps = zip pkgs mods
let deps' = sortBy (comparing fst) deps
mapM_ (print . fst) (sortBy (comparing $ length . snd) deps')
mapM_ (print . fst) (sortOn (length . snd) deps')