82 lines
2.4 KiB
Haskell
Executable File
82 lines
2.4 KiB
Haskell
Executable File
#!/usr/bin/env runhaskell
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{-|
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hledger-check-dates [--strict] [--date2] [-f JOURNALFILE]
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Check that transactions' date are monotonically increasing.
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Reads the default or specified journal.
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|-}
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import Hledger
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import Hledger.Cli
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import Text.Printf
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argsmode :: Mode RawOpts
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argsmode = (defCommandMode ["check-dates"])
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{ modeHelp = "check that transactions' date are monotonically increasing"
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, modeGroupFlags = Group
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{ groupNamed =
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[ ("Input",inputflags)
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, ("Reporting",reportflags)
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, ("Misc",helpflags)
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]
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,groupUnnamed = [
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flagNone ["strict"] (\opts -> setboolopt "strict" opts) "makes date comparing strict"
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]
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, groupHidden = []
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}
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}
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data FoldAcc a b = FoldAcc
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{ fa_error :: Maybe a
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, fa_previous :: Maybe b
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}
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foldWhile :: (a -> FoldAcc a b -> FoldAcc a b) -> FoldAcc a b -> [a] -> FoldAcc a b
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foldWhile fold acc [] = acc
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foldWhile fold acc (a:as) =
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case fold a acc of
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acc@FoldAcc{fa_error=Just a} -> acc
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acc -> foldWhile fold acc as
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checkTransactions :: (Transaction -> Transaction -> Bool)
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-> [Transaction] -> FoldAcc Transaction Transaction
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checkTransactions compare ts =
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foldWhile fold FoldAcc{fa_error=Nothing, fa_previous=Nothing} ts
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where
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fold current acc@FoldAcc{fa_previous=Nothing} = acc{fa_previous=Just current}
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fold current acc@FoldAcc{fa_previous=Just previous} =
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if compare previous current
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then acc{fa_previous=Just current}
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else acc{fa_error=Just current}
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main :: IO ()
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main = do
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opts <- getCliOpts argsmode
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withJournalDo opts $
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\cliopts@CliOpts{rawopts_=opts,reportopts_=ropts} j -> do
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d <- getCurrentDay
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let ropts_ = ropts{flat_=True}
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let q = queryFromOpts d ropts_
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let ts = filter (q `matchesTransaction`) $
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jtxns $ journalSelectingAmountFromOpts ropts j
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let strict = boolopt "strict" opts
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let date = transactionDateFn ropts
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let compare a b =
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if strict
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then date a < date b
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else date a <= date b
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case checkTransactions compare ts of
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FoldAcc{fa_previous=Nothing} -> putStrLn "ok (empty journal)"
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FoldAcc{fa_error=Nothing} -> putStrLn "ok"
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FoldAcc{fa_error=Just error, fa_previous=Just previous} ->
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putStrLn $ printf ("ERROR: transaction out of%s date order"
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++ "\nPrevious date: %s"
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++ "\nDate: %s"
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++ "\nLocation: %s"
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++ "\nTransaction:\n\n%s")
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(if strict then " STRICT" else "")
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(show $ date previous)
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(show $ date error)
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(show $ tsourcepos error)
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(showTransactionUnelided error)
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