mirror of
https://github.com/simonmichael/hledger.git
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daf6732368
The previous cleanup defined long help separately from the usage text generated by cmdargs. This meant keeping flag descriptions synced between the two, and also the short help was often too verbose and longer than the long help. Now, the non-usage bits of long help are defined as pre and postambles within the cmdargs mode, letting cmdargs generate the long help including all flags. We derive the short help from this by truncating at the start of the hledger common flags. Most of the bundled addons (all but hledger-budget) now use the new scheme and have pretty reasonable -h and --help output. We can do more to reduce boilerplate for addon authors.
90 lines
2.8 KiB
Haskell
Executable File
90 lines
2.8 KiB
Haskell
Executable File
#!/usr/bin/env stack
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{- stack runghc --verbosity info
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--package hledger-lib
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--package hledger
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--package here
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-}
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{-# LANGUAGE QuasiQuotes #-}
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import Data.String.Here
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import Hledger
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import Hledger.Cli
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import Text.Printf
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------------------------------------------------------------------------------
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cmdmode =
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let m = defAddonCommandMode "check-dates"
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in m {
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modeHelp = [here|
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Check that transactions' dates are monotonically increasing.
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With --date2, checks secondary dates instead.
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With --strict, dates must also be unique.
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With a query, only matched transactions' dates are checked.
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Reads the default journal file, or another specified with -f.
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|]
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,modeHelpSuffix=lines [here|
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|]
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,modeGroupFlags = (modeGroupFlags m) {
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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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}
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}
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------------------------------------------------------------------------------
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main :: IO ()
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main = do
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opts <- getHledgerCliOpts cmdmode
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withJournalDo opts $
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\CliOpts{rawopts_=opts,reportopts_=ropts} j -> do
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d <- getCurrentDay
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let ropts_ = ropts{accountlistmode_=ALFlat}
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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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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 _ 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 _} -> 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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