mirror of
https://github.com/simonmichael/hledger.git
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257 lines
10 KiB
Haskell
257 lines
10 KiB
Haskell
{-# OPTIONS_GHC -cpp #-}
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module Options
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where
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import System
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import System.Console.GetOpt
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import System.Directory
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import System.Environment
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import Text.Printf
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import Data.Char (toLower)
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import Ledger.Parse
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import Ledger.Utils
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import Ledger.Types
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import Ledger.Dates
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configflags = [
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#ifdef VTY
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"vty"
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#endif
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#ifdef ANSI
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,"ansi"
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#endif
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#ifdef HAPPS
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,"happs"
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#endif
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]
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versionmsg = "hledger " ++ version ++ configmsg ++ "\n"
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version = "0.3.x"
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configmsg = if null configflags
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then ""
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else " with " ++ intercalate ", " configflags
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ledgerdefault = "~/.ledger"
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ledgerenvvar = "LEDGER"
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timelogdefault = "~/.timelog"
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timelogenvvar = "TIMELOG"
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timeprogname = "hours"
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usagehdr = "Usage: hledger [OPTION] COMMAND [ACCTPATTERNS] [-- DESCPATTERNS]\n" ++
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"or: hours [OPTIONS] [PERIOD [COMMAND [PATTERNS]]]\n" ++
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"\n" ++
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"Commands (can be abbreviated):\n" ++
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" balance - show account balances\n" ++
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" print - show formatted ledger entries\n" ++
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" register - show register transactions\n" ++
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#ifdef VTY
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" ui - run a simple vty-based text ui\n" ++
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#endif
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#ifdef ANSI
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" ansi - run a simple ansi-based text ui\n" ++
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#endif
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"\n" ++
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"Options (before command, unless using --options-anywhere):"
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usageftr = "\n" ++
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"All dates can be y/m/d or ledger-style smart dates like \"last month\".\n" ++
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"\n" ++
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"Account and description patterns are regular expressions which filter by\n" ++
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"account name and entry description. Prefix a pattern with - to negate it,\n" ++
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"and separate account and description patterns with --.\n" ++
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"(With --options-anywhere, use ^ and ^^. \"hours\" implies --options-anywhere.)\n" ++
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"\n" ++
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"Also: hledger [-v] test [TESTPATTERNS] to run self-tests.\n" ++
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"\n"
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usage = usageInfo usagehdr options ++ usageftr
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-- | Command-line options we accept.
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options :: [OptDescr Opt]
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options = [
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Option ['f'] ["file"] (ReqArg File "FILE") filehelp
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,Option ['b'] ["begin"] (ReqArg Begin "DATE") "report on entries on or after this date"
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,Option ['e'] ["end"] (ReqArg End "DATE") "report on entries prior to this date"
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,Option ['p'] ["period"] (ReqArg Period "EXPR") ("report on entries during the specified period\n" ++
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"and/or with the specified reporting interval\n")
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,Option ['C'] ["cleared"] (NoArg Cleared) "report only on cleared entries"
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,Option ['B'] ["cost","basis"] (NoArg CostBasis) "report cost basis of commodities"
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,Option [] ["depth"] (ReqArg Depth "N") "balance report: maximum account depth to show"
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,Option ['d'] ["display"] (ReqArg Display "EXPR") ("display only transactions matching simple EXPR\n" ++
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"(where EXPR is 'dOP[DATE]', OP is <, <=, =, >=, >)")
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,Option ['E'] ["empty"] (NoArg Empty) "balance report: show accounts with zero balance"
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,Option ['R'] ["real"] (NoArg Real) "report only on real (non-virtual) transactions"
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,Option ['n'] ["collapse"] (NoArg Collapse) "balance report: no grand total"
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,Option ['s'] ["subtotal"] (NoArg SubTotal) "balance report: show subaccounts"
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,Option ['W'] ["weekly"] (NoArg WeeklyOpt) "register report: show weekly summary"
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,Option ['M'] ["monthly"] (NoArg MonthlyOpt) "register report: show monthly summary"
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,Option ['Y'] ["yearly"] (NoArg YearlyOpt) "register report: show yearly summary"
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,Option ['h'] ["help"] (NoArg Help) "show this help"
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,Option ['v'] ["verbose"] (NoArg Verbose) "verbose test output"
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,Option ['V'] ["version"] (NoArg Version) "show version"
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,Option [] ["debug-no-ui"] (NoArg DebugNoUI) "run ui commands without no output"
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,Option [] ["options-anywhere"] (NoArg OptionsAnywhere) "allow options anywhere on the command line"
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]
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where
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filehelp = printf "ledger file; - means use standard input. Defaults\nto the %s environment variable or %s"
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ledgerenvvar ledgerdefault
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-- | An option value from a command-line flag.
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data Opt =
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File {value::String} |
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Begin {value::String} |
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End {value::String} |
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Period {value::String} |
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Cleared |
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CostBasis |
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Depth {value::String} |
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Display {value::String} |
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Empty |
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Real |
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OptionsAnywhere |
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Collapse |
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SubTotal |
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WeeklyOpt |
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MonthlyOpt |
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YearlyOpt |
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Help |
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Verbose |
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Version
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| DebugNoUI
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deriving (Show,Eq)
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-- yow..
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optsWithConstructor f opts = concatMap get opts
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where get o = if f v == o then [o] else [] where v = value o
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optValuesForConstructor f opts = concatMap get opts
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where get o = if f v == o then [v] else [] where v = value o
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optValuesForConstructors fs opts = concatMap get opts
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where get o = if any (\f -> f v == o) fs then [v] else [] where v = value o
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-- | Parse the command-line arguments into options, command name, and
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-- command arguments. Any dates in the options are converted to full
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-- YYYY/MM/DD format, while we are in the IO monad and can get the current
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-- time. Arguments are parsed differently if the program was invoked as
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-- "hours".
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parseArguments :: IO ([Opt], String, [String])
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parseArguments = do
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args <- getArgs
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istimequery <- usingTimeProgramName
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let order = if "--options-anywhere" `elem` args || istimequery
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then Permute
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else RequireOrder
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let (os,as,es) = getOpt order options args
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os' <- fixOptDates os
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case istimequery of
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False ->
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case (os,as,es) of
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(opts,cmd:args,[]) -> return (os',cmd,args)
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(opts,[],[]) -> return (os',"",[])
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(opts,_,errs) -> ioError (userError (concat errs ++ usage))
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True ->
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case (os,as,es) of
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(opts,p:cmd:args,[]) -> return (os' ++ [Period p],cmd,args)
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(opts,p:args,[]) -> return ([Period p,SubTotal] ++ os',"balance",args)
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(opts,[],[]) -> return ([Period "today",SubTotal] ++ os',"balance",[])
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(opts,_,errs) -> ioError (userError (concat errs ++ 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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fixOptDates :: [Opt] -> IO [Opt]
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fixOptDates opts = do
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t <- today
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return $ map (fixopt t) opts
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where
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fixopt t (Begin s) = Begin $ fixSmartDateStr t s
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fixopt t (End s) = End $ fixSmartDateStr t s
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fixopt t (Display s) = -- hacky
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Display $ gsubRegexPRBy "\\[.+?\\]" fixbracketeddatestr s
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where fixbracketeddatestr s = "[" ++ (fixSmartDateStr t $ init $ tail s) ++ "]"
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fixopt _ o = o
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-- | Figure out the overall date span we should report on, based on any
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-- begin/end/period options provided. If there is a period option, the
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-- others are ignored.
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dateSpanFromOpts :: Day -> [Opt] -> DateSpan
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dateSpanFromOpts refdate opts
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| not $ null popts = snd $ parsePeriodExpr refdate $ last popts
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| otherwise = DateSpan lastb laste
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where
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popts = optValuesForConstructor Period opts
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bopts = optValuesForConstructor Begin opts
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eopts = optValuesForConstructor End opts
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lastb = listtomaybeday bopts
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laste = listtomaybeday eopts
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listtomaybeday vs = if null vs then Nothing else Just $ parse $ last vs
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where parse = parsedate . fixSmartDateStr refdate
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-- | Figure out the reporting interval, if any, specified by the options.
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-- If there is a period option, the others are ignored.
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intervalFromOpts :: [Opt] -> Interval
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intervalFromOpts opts
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| not $ null popts = fst $ parsePeriodExpr refdate $ last popts
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| null otheropts = NoInterval
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| otherwise = case last otheropts of
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WeeklyOpt -> Weekly
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MonthlyOpt -> Monthly
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YearlyOpt -> Yearly
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where
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popts = optValuesForConstructor Period opts
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otheropts = filter (`elem` [WeeklyOpt,MonthlyOpt,YearlyOpt]) opts
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-- doesn't affect the interval, but parsePeriodExpr needs something
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refdate = parsedate "0001/01/01"
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-- | Get the value of the (last) depth option, if any.
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depthFromOpts :: [Opt] -> Maybe Int
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depthFromOpts opts = listtomaybeint $ optValuesForConstructor Depth opts
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where
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listtomaybeint [] = Nothing
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listtomaybeint vs = Just $ read $ last vs
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-- | Get the value of the (last) display option, if any.
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displayFromOpts :: [Opt] -> Maybe String
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displayFromOpts opts = listtomaybe $ optValuesForConstructor Display opts
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where
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listtomaybe [] = Nothing
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listtomaybe vs = Just $ last vs
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-- | Was the program invoked via the \"hours\" alias ?
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usingTimeProgramName :: IO Bool
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usingTimeProgramName = do
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progname <- getProgName
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return $ map toLower progname == timeprogname
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-- | Get the ledger file path from options, an environment variable, or a default
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ledgerFilePathFromOpts :: [Opt] -> IO String
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ledgerFilePathFromOpts opts = do
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istimequery <- usingTimeProgramName
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let (e,d) = if istimequery
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then (timelogenvvar,timelogdefault)
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else (ledgerenvvar,ledgerdefault)
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envordefault <- getEnv e `catch` \_ -> return d
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paths <- mapM tildeExpand $ [envordefault] ++ optValuesForConstructor File opts
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return $ last paths
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-- | Expand ~ in a file path (does not handle ~name).
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tildeExpand :: FilePath -> IO FilePath
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tildeExpand ('~':[]) = getHomeDirectory
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tildeExpand ('~':'/':xs) = getHomeDirectory >>= return . (++ ('/':xs))
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--handle ~name, requires -fvia-C or ghc 6.8:
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--import System.Posix.User
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-- tildeExpand ('~':xs) = do let (user, path) = span (/= '/') xs
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-- pw <- getUserEntryForName user
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-- return (homeDirectory pw ++ path)
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tildeExpand xs = return xs
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-- | Gather any ledger-style account/description pattern arguments into
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-- two lists. These are 0 or more account patterns optionally followed by
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-- a separator and then 0 or more description patterns. The separator is
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-- usually -- but with --options-anywhere is ^^ so we need to provide the
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-- options as well.
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parseAccountDescriptionArgs :: [Opt] -> [String] -> ([String],[String])
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parseAccountDescriptionArgs opts args = (as, ds')
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where (as, ds) = break (==patseparator) args
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ds' = dropWhile (==patseparator) ds
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patseparator = replicate 2 negchar
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negchar
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| OptionsAnywhere `elem` opts = '^'
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| otherwise = '-'
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