And drop a misconception: there's no need to tilde-expand paths in command line arguments. Just the hard-coded ones.
		
			
				
	
	
		
			249 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
			
		
		
	
	
			249 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
| {-# OPTIONS_GHC -cpp #-}
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| {-|
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| Command-line options for the application.
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| -}
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| 
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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.Environment
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| import Text.Printf
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| import Text.RegexPR (gsubRegexPRBy)
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| import Data.Char (toLower)
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| import Ledger.IO (IOArgs,
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|                   ledgerenvvar,myLedgerPath,
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|                   timelogenvvar,myTimelogPath)
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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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| import Codec.Binary.UTF8.String (decodeString)
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| import Control.Monad (liftM)
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| 
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| progname      = "hledger"
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| timeprogname  = "hours"
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| 
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| usagehdr = (
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|   "Usage: hledger [OPTIONS] [COMMAND [PATTERNS]]\n" ++
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|   "       hours   [OPTIONS] [COMMAND [PATTERNS]]\n" ++
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|   "       hledger convert CSVFILE ACCOUNTNAME RULESFILE\n" ++
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|   "\n" ++
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|   "hledger uses your ~/.ledger or $LEDGER file (or another specified with -f),\n" ++
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|   "while hours uses your ~/.timelog or $TIMELOG file.\n" ++
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|   "\n" ++
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|   "COMMAND is one of (may be abbreviated):\n" ++
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|   "  add       - prompt for new transactions and add them to the ledger\n" ++
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|   "  balance   - show accounts, with balances\n" ++
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|   "  convert   - convert CSV data to ledger format and print on stdout\n" ++
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|   "  histogram - show transaction counts per day or other interval\n" ++
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|   "  print     - show transactions in ledger format\n" ++
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|   "  register  - show transactions as a register with running balance\n" ++
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|   "  stats     - show various statistics for a ledger\n" ++
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| #ifdef VTY
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|   "  ui        - run a simple curses-based text ui\n" ++
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| #endif
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| #ifdef HAPPS
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|   "  web       - run a simple web ui\n" ++
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| #endif
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|   "  test      - run self-tests\n" ++
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|   "\n" ++
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|   "PATTERNS are regular expressions which filter by account name.\n" ++
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|   "Prefix with desc: to filter by transaction description instead.\n" ++
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|   "Prefix with not: to negate a pattern. When using both, not: comes last.\n" ++
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|   "\n" ++
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|   "DATES can be y/m/d or ledger-style smart dates like \"last month\".\n" ++
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|   "\n" ++
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|   "Options:"
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|   )
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| usageftr = ""
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| usage = usageInfo usagehdr options ++ usageftr
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| 
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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")   "use a different ledger/timelog file; - means stdin"
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|  ,Option ['b'] ["begin"]        (ReqArg Begin "DATE")  "report on transactions on or after this date"
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|  ,Option ['e'] ["end"]          (ReqArg End "DATE")    "report on transactions before this date"
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|  ,Option ['p'] ["period"]       (ReqArg Period "EXPR") ("report on transactions 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 transactions"
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|  ,Option ['U'] ["uncleared"]    (NoArg  UnCleared)     "report only on uncleared transactions"
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|  ,Option ['B'] ["cost","basis"] (NoArg  CostBasis)     "report cost of commodities"
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|  ,Option []    ["depth"]        (ReqArg Depth "N")     "hide accounts/transactions deeper than this"
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|  ,Option ['d'] ["display"]      (ReqArg Display "EXPR") ("show only transactions matching EXPR (where\n" ++
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|                                                         "EXPR is 'dOP[DATE]' and OP is <, <=, =, >=, >)")
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|  ,Option ['E'] ["empty"]        (NoArg  Empty)         "show empty/zero things which are normally elided"
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|  ,Option ['R'] ["real"]         (NoArg  Real)          "report only on real (non-virtual) transactions"
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|  ,Option []    ["no-total"]     (NoArg  NoTotal)       "balance report: hide the final 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 ['Q'] ["quarterly"]    (NoArg  QuarterlyOpt)  "register report: show quarterly 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'] ["version"]      (NoArg  Version)       "show version information"
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|  ,Option ['v'] ["verbose"]      (NoArg  Verbose)       "show verbose test output"
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|  ,Option []    ["binary-filename"] (NoArg BinaryFilename) "show the download filename for this hledger build"
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|  ,Option []    ["debug"]        (NoArg  Debug)         "show some debug output"
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|  ,Option []    ["debug-no-ui"]  (NoArg  DebugNoUI)     "run ui commands with no output"
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|  ]
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| 
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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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|     UnCleared | 
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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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|     NoTotal |
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|     SubTotal |
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|     WeeklyOpt |
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|     MonthlyOpt |
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|     QuarterlyOpt |
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|     YearlyOpt |
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|     Help |
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|     Verbose |
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|     Version
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|     | BinaryFilename
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|     | Debug
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|     | DebugNoUI
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|     deriving (Show,Eq)
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| 
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| -- these make me nervous
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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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| 
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| optsWithConstructors fs opts = concatMap get opts
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|     where get o = if any (\f -> f == o) fs then [o] else []
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| 
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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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| 
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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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| 
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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 explicit
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| -- YYYY/MM/DD format based on the current time.
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| parseArguments :: IO ([Opt], String, [String])
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| parseArguments = do
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|   args <- liftM (map decodeString) getArgs
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|   let (os,as,es) = getOpt Permute options args
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| --  istimequery <- usingTimeProgramName
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| --  let os' = if istimequery then (Period "today"):os else os
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|   os'' <- fixOptDates os
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|   case (as,es) of
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|     (cmd:args,[])   -> return (os'',cmd,args)
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|     ([],[])         -> return (os'',"",[])
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|     (_,errs)        -> ioError (userError (concat errs ++ usage))
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| 
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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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|   d <- getCurrentDay
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|   return $ map (fixopt d) opts
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|   where
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|     fixopt d (Begin s)   = Begin $ fixSmartDateStr d s
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|     fixopt d (End s)     = End $ fixSmartDateStr d s
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|     fixopt d (Display s) = -- hacky
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|         Display $ gsubRegexPRBy "\\[.+?\\]" fixbracketeddatestr s
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|         where fixbracketeddatestr s = "[" ++ (fixSmartDateStr d $ init $ tail s) ++ "]"
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|     fixopt _ o            = o
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| 
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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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| 
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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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|                     QuarterlyOpt -> Quarterly
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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,QuarterlyOpt,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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| 
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| -- | Get the value of the (last) depth option, if any, otherwise a large number.
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| depthFromOpts :: [Opt] -> Int
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| depthFromOpts opts = fromMaybe 9999 $ 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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| 
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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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| 
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| -- | Get a maybe boolean representing the last cleared/uncleared option if any.
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| clearedValueFromOpts opts | null os = Nothing
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|                           | last os == Cleared = Just True
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|                           | otherwise = Just False
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|     where os = optsWithConstructors [Cleared,UnCleared] opts
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| 
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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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| 
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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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|   f <- if istimequery then myTimelogPath else myLedgerPath
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|   return $ last $ f:(optValuesForConstructor File opts)
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| 
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| -- | Gather filter pattern arguments into a list of account patterns and a
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| -- list of description patterns. We interpret pattern arguments as
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| -- follows: those prefixed with "desc:" are description patterns, all
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| -- others are account patterns; also patterns prefixed with "not:" are
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| -- negated. not: should come after desc: if both are used.
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| parsePatternArgs :: [String] -> ([String],[String])
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| parsePatternArgs args = (as, ds')
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|     where
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|       descprefix = "desc:"
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|       (ds, as) = partition (descprefix `isPrefixOf`) args
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|       ds' = map (drop (length descprefix)) ds
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| 
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| -- | Convert application options to more generic types for the library.
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| optsToIOArgs :: [Opt] -> [String] -> LocalTime -> IOArgs
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| optsToIOArgs opts args t = (dateSpanFromOpts (localDay t) opts
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|                          ,clearedValueFromOpts opts
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|                          ,Real `elem` opts
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|                          ,CostBasis `elem` opts
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|                          ,apats
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|                          ,dpats
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|                          ) where (apats,dpats) = parsePatternArgs args
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| 
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