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briefer, more informative usage error messages
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commit
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@ -59,7 +59,7 @@ usage_chart = concat [
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main :: IO ()
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main = do
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(opts, args) <- parseArgumentsWith (options_cli++options_chart) usage_chart
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(opts, args) <- parseArgumentsWith $ options_cli++options_chart
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run opts args
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where
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run opts args
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@ -49,7 +49,7 @@ usage_vty = concat [
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main :: IO ()
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main = do
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(opts, args) <- parseArgumentsWith (options_cli++options_vty) usage_vty
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(opts, args) <- parseArgumentsWith $ options_cli++options_vty
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run opts args
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where
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run opts args
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@ -54,7 +54,7 @@ usage_web = concat [
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main :: IO ()
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main = do
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(opts, args) <- parseArgumentsWith (options_cli++options_web) usage_web
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(opts, args) <- parseArgumentsWith $ options_cli++options_web
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run opts args
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where
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run opts args
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@ -54,14 +54,15 @@ import Hledger.Cli.Version (progversionstr, binaryfilename)
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main :: IO ()
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main = do
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(opts, args) <- parseArgumentsWith options_cli usage_cli
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(opts, args) <- parseArgumentsWith options_cli
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run opts args
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where
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run _ [] = putStr usage_cli
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run opts (cmd:args)
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run opts _
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| Help `elem` opts = putStr usage_cli
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| Version `elem` opts = putStrLn $ progversionstr progname_cli
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| BinaryFilename `elem` opts = putStrLn $ binaryfilename progname_cli
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run _ [] = argsError "a command is required."
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run opts (cmd:args)
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| cmd `isPrefixOf` "balance" = withJournalDo opts args cmd balance
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| cmd `isPrefixOf` "convert" = withJournalDo opts args cmd convert
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| cmd `isPrefixOf` "print" = withJournalDo opts args cmd print'
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@ -70,4 +71,4 @@ main = do
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| cmd `isPrefixOf` "add" = withJournalDo opts args cmd add
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| cmd `isPrefixOf` "stats" = withJournalDo opts args cmd stats
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| cmd `isPrefixOf` "test" = runtests opts args >> return ()
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| otherwise = putStr usage_cli
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| otherwise = argsError $ "command "++cmd++" is unrecognized."
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@ -146,15 +146,18 @@ optValuesForConstructors fs opts = concatMap get opts
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-- converted to explicit YYYY/MM/DD format based on the current time. If
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-- parsing fails, raise an error, displaying the problem along with the
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-- provided usage string.
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parseArgumentsWith :: [OptDescr Opt] -> String -> IO ([Opt], [String])
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parseArgumentsWith options usage = do
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rawargs <- liftM (map decodeString) getArgs
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parseArgumentsWith :: [OptDescr Opt] -> IO ([Opt], [String])
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parseArgumentsWith options = do
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rawargs <- map decodeString `fmap` getArgs
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let (opts,args,errs) = getOpt Permute options rawargs
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opts' <- fixOptDates opts
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let opts'' = if Debug `elem` opts' then Verbose:opts' else opts'
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if null errs
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then return (opts'',args)
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else ioError $ userError' $ concat errs ++ usage
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else argsError (concat errs) >> return ([],[])
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argsError :: String -> IO ()
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argsError = ioError . userError' . (++ " Run with --help to see usage.")
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-- | Convert any fuzzy dates within these option values to explicit ones,
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-- based on today's date.
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