321 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
			
		
		
	
	
			321 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
| {-|
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| Command-line options for the application.
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| -}
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| 
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| module Hledger.Cli.Options
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| where
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| import Codec.Binary.UTF8.String (decodeString)
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| import System.Console.GetOpt
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| import System.Environment
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| 
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| import Hledger.Data.Utils
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| import Hledger.Data.Types
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| import Hledger.Data.Dates
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| import Hledger.Read (myJournalPath, myTimelogPath)
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| 
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| 
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| progname_cli = "hledger"
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| 
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| -- | The program name which, if we are invoked as (via symlink or
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| -- renaming), causes us to default to reading the user's time log instead
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| -- of their journal.
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| progname_cli_time  = "hours"
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| 
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| usage_preamble_cli =
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|   "Usage: hledger [OPTIONS] COMMAND [PATTERNS]\n" ++
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|   "       hledger [OPTIONS] convert CSVFILE\n" ++
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|   "\n" ++
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|   "Reads your ~/.journal file, or another specified by $LEDGER or -f, and\n" ++
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|   "runs the specified command (may be abbreviated):\n" ++
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|   "\n" ++
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|   "  add       - prompt for new transactions and add them to the journal\n" ++
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|   "  balance   - show accounts, with balances\n" ++
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|   "  convert   - show the specified CSV file as a hledger journal\n" ++
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|   "  histogram - show a barchart of transactions per day or other interval\n" ++
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|   "  print     - show transactions in journal 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 journal\n" ++
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|   "  test      - run self-tests\n" ++
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|   "\n"
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| 
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| usage_options_cli = usageInfo "hledger options:" options_cli
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| 
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| usage_postscript_cli =
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|  "\n" ++
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|  "DATES can be y/m/d or smart dates like \"last month\".  PATTERNS are regular\n" ++
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|  "expressions which filter by account name.  Prefix a pattern with desc: to\n" ++
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|  "filter by transaction description instead, prefix with not: to negate it.\n" ++
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|  "When using both, not: comes last.\n"
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| 
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| usage_cli = concat [
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|              usage_preamble_cli
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|             ,usage_options_cli
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|             ,usage_postscript_cli
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|             ]
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| 
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| -- | Command-line options we accept.
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| options_cli :: [OptDescr Opt]
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| options_cli = [
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|   Option "f" ["file"]         (ReqArg File "FILE")   "use a different journal/timelog file; - means stdin"
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|  ,Option ""  ["no-new-accounts"] (NoArg NoNewAccts)  "don't allow to create new accounts"
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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 ""  ["effective"]    (NoArg  Effective)     "use transactions' effective dates, if any"
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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 ""  ["flat"]         (NoArg  Flat)          "balance: show full account names, unindented"
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|  ,Option ""  ["drop"]         (ReqArg Drop "N")      "balance: with --flat, elide first N account name components"
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|  ,Option ""  ["no-total"]     (NoArg  NoTotal)       "balance: hide the final total"
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|  ,Option "D" ["daily"]        (NoArg  DailyOpt)      "register, stats: report by day"
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|  ,Option "W" ["weekly"]       (NoArg  WeeklyOpt)     "register, stats: report by week"
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|  ,Option "M" ["monthly"]      (NoArg  MonthlyOpt)    "register, stats: report by month"
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|  ,Option "Q" ["quarterly"]    (NoArg  QuarterlyOpt)  "register, stats: report by quarter"
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|  ,Option "Y" ["yearly"]       (NoArg  YearlyOpt)     "register, stats: report by year"
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|  ,Option "v" ["verbose"]      (NoArg  Verbose)       "show more verbose output"
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|  ,Option ""  ["debug"]        (NoArg  Debug)         "show extra debug output; implies verbose"
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|  ,Option ""  ["binary-filename"] (NoArg BinaryFilename) "show the download filename for this hledger build"
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|  ,Option "V" ["version"]      (NoArg  Version)       "show version information"
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|  ,Option "h" ["help"]         (NoArg  Help)          "show command-line usage"
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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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|     | NoNewAccts
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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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|     | Effective
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|     | Empty
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|     | Real
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|     | Flat
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|     | Drop        {value::String}
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|     | NoTotal
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|     | SubTotal
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|     | DailyOpt
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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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|     -- XXX add-on options, must be defined here for now
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|     -- vty
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|     | DebugVty
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|     -- web
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|     | BaseUrl     {value::String}
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|     | Port        {value::String}
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|     -- chart
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|     | ChartOutput {value::String}
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|     | ChartItems  {value::String}
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|     | ChartSize   {value::String}
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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 = [o | f v == o] 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 = [o | any (== o) fs]
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| 
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| optValuesForConstructor f opts = concatMap get opts
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|     where get o = [v | f v == o] 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 = [v | any (\f -> f v == o) fs] where v = value o
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| 
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| -- | Parse the command-line arguments into options and arguments using the
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| -- specified option descriptors. Any smart dates in the options are
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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] -> 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 argsError (concat errs) >> return ([],[])
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| 
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| argsError :: String -> IO ()
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| argsError = ioError . userError' . (++ " Run with --help to see 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) = case parsePeriodExpr refdate $ last popts of
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|                          Right (_, s) -> s
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|                          Left e       -> parseerror e
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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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|     case (periodopts, intervalopts) of
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|       ((p:_), _)            -> case parsePeriodExpr (parsedate "0001/01/01") p of
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|                                 Right (i, _) -> i
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|                                 Left e       -> parseerror e
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|       (_, (DailyOpt:_))     -> Days 1
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|       (_, (WeeklyOpt:_))    -> Weeks 1
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|       (_, (MonthlyOpt:_))   -> Months 1
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|       (_, (QuarterlyOpt:_)) -> Quarters 1
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|       (_, (YearlyOpt:_))    -> Years 1
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|       (_, _)                -> NoInterval
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|     where
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|       periodopts   = reverse $ optValuesForConstructor Period opts
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|       intervalopts = reverse $ filter (`elem` [DailyOpt,WeeklyOpt,MonthlyOpt,QuarterlyOpt,YearlyOpt]) opts
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| 
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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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| 
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| -- | Get the value of the (last) drop option, if any, otherwise 0.
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| dropFromOpts :: [Opt] -> Int
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| dropFromOpts opts = fromMaybe 0 $ listtomaybeint $ optValuesForConstructor Drop 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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| displayExprFromOpts :: [Opt] -> Maybe String
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| displayExprFromOpts 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 the value of the (last) baseurl option, if any.
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| baseUrlFromOpts :: [Opt] -> Maybe String
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| baseUrlFromOpts opts = listtomaybe $ optValuesForConstructor BaseUrl 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 the value of the (last) port option, if any.
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| portFromOpts :: [Opt] -> Maybe Int
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| portFromOpts opts = listtomaybeint $ optValuesForConstructor Port 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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| 
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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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| -- | Were we invoked as \"hours\" ?
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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 == progname_cli_time
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| 
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| -- | Get the journal file path from options, an environment variable, or a default
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| journalFilePathFromOpts :: [Opt] -> IO String
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| journalFilePathFromOpts opts = do
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|   istimequery <- usingTimeProgramName
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|   f <- if istimequery then myTimelogPath else myJournalPath
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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 the library's generic filter specification.
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| optsToFilterSpec :: [Opt] -> [String] -> LocalTime -> FilterSpec
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| optsToFilterSpec opts args t = FilterSpec {
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|                                 datespan=dateSpanFromOpts (localDay t) opts
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|                                ,cleared=clearedValueFromOpts opts
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|                                ,real=Real `elem` opts
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|                                ,empty=Empty `elem` opts
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|                                ,costbasis=CostBasis `elem` opts
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|                                ,acctpats=apats
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|                                ,descpats=dpats
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|                                ,whichdate = if Effective `elem` opts then EffectiveDate else ActualDate
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|                                ,depth = depthFromOpts opts
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|                                }
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|     where (apats,dpats) = parsePatternArgs args
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| 
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| -- currentLocalTimeFromOpts opts = listtomaybe $ optValuesForConstructor CurrentLocalTime 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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| tests_Hledger_Cli_Options = TestList
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|  [
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|   "dateSpanFromOpts" ~: do
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|     let todaysdate = parsedate "2008/11/26"
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|     let gives = is . show . dateSpanFromOpts todaysdate
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|     [] `gives` "DateSpan Nothing Nothing"
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|     [Begin "2008", End "2009"] `gives` "DateSpan (Just 2008-01-01) (Just 2009-01-01)"
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|     [Period "in 2008"] `gives` "DateSpan (Just 2008-01-01) (Just 2009-01-01)"
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|     [Begin "2005", End "2007",Period "in 2008"] `gives` "DateSpan (Just 2008-01-01) (Just 2009-01-01)"
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| 
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|   ,"intervalFromOpts" ~: do
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|     let gives = is . intervalFromOpts
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|     [] `gives` NoInterval
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|     [DailyOpt] `gives` Days 1
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|     [WeeklyOpt] `gives` Weeks 1
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|     [MonthlyOpt] `gives` Months 1
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|     [QuarterlyOpt] `gives` Quarters 1
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|     [YearlyOpt] `gives` Years 1
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|     [Period "weekly"] `gives` Weeks 1
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|     [Period "monthly"] `gives` Months 1
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|     [Period "quarterly"] `gives` Quarters 1
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|     [WeeklyOpt, Period "yearly"] `gives` Years 1
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| 
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|  ] |