fishfood (empty) → 0.0.0.1
raw patch · 9 files changed
+1151/−0 lines, 9 filesdep +Cabaldep +basedep +containerssetup-changed
Dependencies added: Cabal, base, containers, factory, toolshed, unix
Files
- LICENSE +675/−0
- Setup.hs +5/−0
- changelog +5/−0
- copyright +11/−0
- fishfood.cabal +53/−0
- makefile +63/−0
- src/FishFood/Data/CommandOptions.hs +86/−0
- src/FishFood/Data/File.hs +60/−0
- src/Main.hs +193/−0
+ LICENSE view
@@ -0,0 +1,675 @@+ GNU GENERAL PUBLIC LICENSE+ Version 3, 29 June 2007++ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++ Preamble++ The GNU General Public License is a free, copyleft license for+software and other kinds of works.++ The licenses for most software and other practical works are designed+to take away your freedom to share and change the works. By contrast,+the GNU General Public License is intended to guarantee your freedom to+share and change all versions of a program--to make sure it remains free+software for all its users. We, the Free Software Foundation, use the+GNU General Public License for most of our software; it applies also to+any other work released this way by its authors. You can apply it to+your programs, too.++ When we speak of free software, we are referring to freedom, not+price. 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+ Setup.hs view
@@ -0,0 +1,5 @@+#!/usr/bin/env runhaskell++import qualified Distribution.Simple++main = Distribution.Simple.defaultMain
+ changelog view
@@ -0,0 +1,5 @@+2013-07-16 Dr. Alistair Ward <fishfood at functionalley dot eu>++0.0.0.1+ * First version of the package.+
+ copyright view
@@ -0,0 +1,11 @@+Author:+ Dr. Alistair Ward <squeeze at functionalley dot eu>.++Copyright:+ Copyright (C) 2010-2011 Dr. Alistair Ward. All Rights Reserved.++Home-page:+ http://functionalley.eu++License:+ GNU GENERAL PUBLIC LICENSE Version 3; see '/usr/share/common-licenses/GPL-3' or '/usr/share/doc/licenses/gpl-3.0.txt' where available, or the local packaged file 'LICENSE'.
+ fishfood.cabal view
@@ -0,0 +1,53 @@+--Package-properties+Name: fishfood+Version: 0.0.0.1+Cabal-Version: >= 1.6+Copyright: (C) 2013 Dr. Alistair Ward+License: GPL+License-file: LICENSE+Author: Dr. Alistair Ward+Stability: Unstable interface, incomplete features.+Synopsis: Finds the file-size frequency-distribution for the referenced files.+Build-Type: Simple+Description: Counts the number of files in a set of bins, each of which holds only those files which fall within a specific size-interval.+Category: Utils+Tested-With: GHC == 7.4+Homepage: http://functionalley.eu+Maintainer: fishfood <at> functionalley <dot> eu+Bug-reports: fishfood <at> functionalley <dot> eu+Data-files:+Extra-Source-Files: changelog copyright makefile++flag llvm+ Description: Whether the 'llvm' compiler-backend has been installed and is required for code-generation.+ manual: True+ default: False++Executable fishfood+ hs-source-dirs: src+ Main-Is: Main.hs+ Other-modules:+ FishFood.Data.CommandOptions,+ FishFood.Data.File++ Build-depends:+ base == 4.*,+ Cabal >= 1.6 && < 2,+ containers,+ factory >= 0.2.0.5,+ toolshed >= 0.13,+ unix++ GHC-options: -Wall++ if impl(ghc >= 7.4.1)+ GHC-prof-options: -prof -fprof-auto -fprof-cafs+ else+ GHC-prof-options: -prof -auto-all -caf-all++ if impl(ghc >= 7.0)+ GHC-options: -rtsopts++ if flag(llvm)+ GHC-options: -fllvm+
+ makefile view
@@ -0,0 +1,63 @@+# Copyright (C) 2010 Dr. Alistair Ward+#+# This program is free software: you can redistribute it and/or modify+# it under the terms of the GNU General Public License as published by+# the Free Software Foundation, either version 3 of the License, or+# (at your option) any later version.+#+# This program is distributed in the hope that it will be useful,+# but WITHOUT ANY WARRANTY; without even the implied warranty of+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+# GNU General Public License for more details.+#+# You should have received a copy of the GNU General Public License+# along with this program. If not, see <http://www.gnu.org/licenses/>.++.PHONY: all build check clean clobber configure copy haddock help hlint install prof sdist++PACKAGE_NAME=fishfood++all: install++install: build haddock+ @[ -z "$$CABAL_INSTALL_OPTIONS" ] || echo "INFO: CABAL_INSTALL_OPTIONS='$$CABAL_INSTALL_OPTIONS'"+ runhaskell Setup $@ $$CABAL_INSTALL_OPTIONS++prof:+ CABAL_CONFIGURE_OPTIONS="--enable-executable-profiling $$CABAL_CONFIGURE_OPTIONS" make build++copy: build+ @[ -z "$$CABAL_COPY_OPTIONS" ] || echo "INFO: CABAL_COPY_OPTIONS='$$CABAL_COPY_OPTIONS'"+ runhaskell Setup $@ $$CABAL_COPY_OPTIONS++build: configure+ @[ -z "$$CABAL_BUILD_OPTIONS" ] || echo "INFO: CABAL_BUILD_OPTIONS='$$CABAL_BUILD_OPTIONS'"+ runhaskell Setup $@ $$CABAL_BUILD_OPTIONS++configure: $(PACKAGE_NAME).cabal Setup.hs+ @[ -z "$$CABAL_CONFIGURE_OPTIONS" ] || echo "INFO: CABAL_CONFIGURE_OPTIONS='$$CABAL_CONFIGURE_OPTIONS'"+ runhaskell Setup $@ $$CABAL_CONFIGURE_OPTIONS #--user++haddock: configure+ PATH=~/.cabal/bin:$$PATH runhaskell Setup $@ --hyperlink-source --executables #Amend path to find 'HsColour', as required for 'hyperlink-source'.++hlint:+ @$@ src/++sdist:+ runhaskell Setup $@++check: sdist+ cabal upload --check --verbose=3 dist/*.tar.gz;++clean:+ runhaskell Setup $@+ rm -rf 'debian/usr/' 'debian/DEBIAN/md5sums'+ find src -type f \( -name '*.hc' -o -name '*.hcr' -o -name '*.hi' -o -name '*.o' \) -delete++clobber: clean+ rm -f -- *.rpm *.deb++help:+ @grep '^[a-zA-Z].*:' makefile | sed -e 's/:.*//'+
+ src/FishFood/Data/CommandOptions.hs view
@@ -0,0 +1,86 @@+{-+ Copyright (C) 2013 Dr. Alistair Ward++ This program is free software: you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation, either version 3 of the License, or+ (at your option) any later version.++ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License+ along with this program. If not, see <http://www.gnu.org/licenses/>.+-}+{- |+ [@AUTHOR@] Dr. Alistair Ward++ [@DESCRIPTION@]++ * Defines options for program-operation.++ * Defines an appropriate default value, which is expected to be over-ridden on the command-line.++ * Self-validates.+-}++module FishFood.Data.CommandOptions(+-- * Types+-- ** Data-types+ CommandOptions(+-- MkCommandOptions,+ getBinSize,+ getIncludeEmpty,+ getNDecimalDigits,+ getVerbosity+ )+) where++import qualified Data.Maybe+import qualified Distribution.Verbosity+import qualified FishFood.Data.File as Data.File+import qualified ToolShed.Defaultable+import qualified ToolShed.SelfValidate++-- | Declares a record to contain command-line options.+data CommandOptions = MkCommandOptions {+ getBinSize :: Maybe Data.File.FileSize, -- ^ The intervals into which file-sizes are categorised.+ getIncludeEmpty :: Bool, -- ^ Whether to display empty bins.+ getNDecimalDigits :: Int, -- ^ The precision to which fractional auxiliary data is displayed.+ getVerbosity :: Distribution.Verbosity.Verbosity -- ^ The threshold for ancillary information-output.+} deriving Show++instance ToolShed.Defaultable.Defaultable CommandOptions where+ defaultValue = MkCommandOptions {+ getBinSize = Nothing, --Interpreted as one standard-deviation.+ getIncludeEmpty = False,+ getNDecimalDigits = 3,+ getVerbosity = Distribution.Verbosity.normal+ }++instance ToolShed.SelfValidate.SelfValidator CommandOptions where+ getErrors commandOptions@MkCommandOptions {+ getBinSize = binSize,+ getNDecimalDigits = nDecimalDigits+ } = map snd $ filter fst [+ (+ Data.Maybe.maybe False (<= 0) binSize,+ "the bin-size must exceed zero; " ++ show commandOptions ++ "."+ ), (+ nDecimalDigits < 1,+ "the number of decimal digits must exceed zero; " ++ show commandOptions ++ "."+ ),+ let+ maxNDecimalDigits = floor $ fromIntegral (+ floatDigits (+ undefined :: Double --CAVEAT: the actual type could be merely 'Float', but that's currently unknown.+ )+ ) * (logBase 10 2 :: Double)+ in (+ nDecimalDigits > maxNDecimalDigits,+ "the number of decimal digits shouldn't exceed " ++ show maxNDecimalDigits ++ "; " ++ show commandOptions ++ "."+ )+ ]+
+ src/FishFood/Data/File.hs view
@@ -0,0 +1,60 @@+{-+ Copyright (C) 2013 Dr. Alistair Ward++ This program is free software: you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation, either version 3 of the License, or+ (at your option) any later version.++ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License+ along with this program. If not, see <http://www.gnu.org/licenses/>.+-}+{- |+ [@AUTHOR@] Dr. Alistair Ward++ [@DESCRIPTION@] Allows one to find the size of a file, & to gather statistics on a population.+-}++module FishFood.Data.File(+-- * Types+-- ** Type-synonyms+ FileSize,+-- * Functions+ findSize,+ getFileSizeStatistics+) where++import qualified Control.Exception+import qualified Factory.Math.Statistics+import qualified System.IO+import qualified System.IO.Error+import qualified System.Posix.Files++-- | A type-synonym specifically to hold file-sizes (in bytes).+type FileSize = Integer --Matches the return-type of 'IO.hFileSize'.++-- | Get the size of the specified file.+findSize :: System.IO.FilePath -> IO FileSize+findSize f = do+ stat <- System.Posix.Files.getFileStatus f --CAVEAT: throws if the user is unauthorised, or the file is non-existent.++ if System.Posix.Files.isRegularFile stat+ then System.IO.withFile f System.IO.ReadMode System.IO.hFileSize+ else {-non-directory-} Control.Exception.throw $ System.IO.Error.mkIOError System.IO.Error.illegalOperationErrorType ("file=" ++ show f ++ " has unexpected type") Nothing (Just f)++-- | Acquire statistics related to a list of file-sizes.+getFileSizeStatistics+ :: (Fractional mean, Floating standardDeviation)+ => [FileSize]+ -> (Int, mean, standardDeviation) -- ^ (The population-size, Mean size, Standard-deviation).+getFileSizeStatistics fileSizes = (+ length fileSizes,+ Factory.Math.Statistics.getMean fileSizes,+ Factory.Math.Statistics.getStandardDeviation fileSizes+ )+
+ src/Main.hs view
@@ -0,0 +1,193 @@+{-+ Copyright (C) 2013 Dr. Alistair Ward++ This program is free software: you can redistribute it and/or modify+ it under the terms of the GNU General Public License as published by+ the Free Software Foundation, either version 3 of the License, or+ (at your option) any later version.++ This program is distributed in the hope that it will be useful,+ but WITHOUT ANY WARRANTY; without even the implied warranty of+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License+ along with this program. If not, see <http://www.gnu.org/licenses/>.+-}+{- |+ [@AUTHOR@] Dr. Alistair Ward++ [@DESCRIPTION@]++ * Contains the entry-point of the application.++ * Processes the command-line arguments.+-}++module Main(main) where++import Control.Applicative((<$>),(<*>))+import Control.Arrow((&&&))+import qualified Control.Monad+import qualified Data.List+import qualified Data.Map+import qualified Data.Maybe+import qualified Data.Version+import qualified Distribution.Package+import qualified Distribution.Text+import qualified Distribution.Verbosity+import qualified Distribution.Version+import qualified FishFood.Data.CommandOptions as Data.CommandOptions+import qualified FishFood.Data.File as Data.File+import qualified Paths_fishfood as Paths --Either local stub, or package-instance autogenerated by 'Setup.hs build'.+import qualified System.Console.GetOpt as G+import qualified System.Environment+import qualified System.Exit+import qualified System.IO+import qualified System.IO.Error+import qualified Text.Printf+import qualified ToolShed.Defaultable+import qualified ToolShed.SelfValidate++-- | Used to thread user-defined command-line options, though the list of functions which implement them.+type CommandLineAction = Data.CommandOptions.CommandOptions -> IO Data.CommandOptions.CommandOptions --Supplied as the type-argument to 'G.OptDescr'.++-- | On failure to parse the specified string, returns an explanatory error.+read' :: Read a => String -> String -> a+read' errorMessage s = case reads s of+ [(x, "")] -> x+ _ -> error $ errorMessage ++ show s++-- | On failure to parse a command-line argument, returns an explanatory error.+readCommandArg :: Read a => String -> a+readCommandArg = read' "failed to parse command-line argument "++-- | Reads a bounded integral from the command-line, guarding against overflow.+readBoundedIntegral :: Integral i => String -> i+readBoundedIntegral s+ | fromIntegral bounded /= unbounded = error $ "integral value exceeds permissible bounds; " ++ show unbounded ++ "."+ | otherwise = bounded+ where+ unbounded = readCommandArg s+ bounded = fromInteger unbounded++{- |+ * Parses the command-line options, which over-ride default values.++ * Any arguments which follow known options, are interpreted as file-names.++ * If the specified file-name is /-/, then the actual file-names are read from /standard-input/, to augment any other non-options specified.+-}+main :: IO ()+main = do+ progName <- System.Environment.getProgName++ let+ defaultCommandOptions :: Data.CommandOptions.CommandOptions+ defaultCommandOptions = ToolShed.Defaultable.defaultValue++ optDescrList :: [G.OptDescr CommandLineAction]+ optDescrList = [+-- String [String] (G.ArgDescr CommandLineAction) String+ G.Option "?" ["help"] (G.NoArg $ const printUsage) "Display this help, & then exit.",+ G.Option "" ["verbosity"] (+ setVerbosity `G.ReqArg` show [minBound :: Distribution.Verbosity.Verbosity .. maxBound]+ ) ("Define the log-level; default '" ++ show (Data.CommandOptions.getVerbosity defaultCommandOptions) ++ "'."+ ),+ G.Option "v" ["version"] (G.NoArg $ const printVersion) "Print version-information, & then exit.",+ G.Option "b" ["binSize"] (setBinSize `G.ReqArg` "<Int>") "The range in bytes, accepted by any one of the bins into which file-sizes are categorised; defaulting to one standard-deviation.",+ G.Option "d" ["nDecimalDigits"] (setNDecimalDigits `G.ReqArg` "<Int>") ("The precision to which fractional auxiliary data is displayed; default " ++ show (Data.CommandOptions.getNDecimalDigits defaultCommandOptions) ++ "."),+ G.Option "z" ["includeEmpty"] (setIncludeEmpty `G.OptArg` "<Bool>") ("Whether to display empty bins; default '" ++ show (Data.CommandOptions.getIncludeEmpty defaultCommandOptions) ++ "'.")+ ] where+ setBinSize, setNDecimalDigits, setVerbosity :: String -> CommandLineAction+ setBinSize arg commandOptions = return {-to IO-monad-} commandOptions { Data.CommandOptions.getBinSize = Just $ readCommandArg arg }+ setNDecimalDigits arg commandOptions = return {-to IO-monad-} commandOptions { Data.CommandOptions.getNDecimalDigits = readBoundedIntegral arg }+ setVerbosity arg commandOptions = return {-to IO-monad-} commandOptions { Data.CommandOptions.getVerbosity = readCommandArg arg }++ setIncludeEmpty :: Maybe String -> CommandLineAction+ setIncludeEmpty arg commandOptions = return {-to IO-monad-} commandOptions { Data.CommandOptions.getIncludeEmpty = Data.Maybe.maybe True readCommandArg arg }++ printVersion, printUsage :: IO Data.CommandOptions.CommandOptions+ printVersion = Text.Printf.printf "%s\n\n%s %s.\n%s.\n%s.\n%s %s.\n" packageName "Copyright (C) 2013" author "This program comes with ABSOLUTELY NO WARRANTY" "This is free software, & you are welcome to redistribute it under certain conditions" "Written by" author >> System.Exit.exitWith System.Exit.ExitSuccess where+ packageIdentifier :: Distribution.Package.PackageIdentifier+ packageIdentifier = Distribution.Package.PackageIdentifier {+ Distribution.Package.pkgName = Distribution.Package.PackageName progName, --CAVEAT: coincidentally.+ Distribution.Package.pkgVersion = Distribution.Version.Version (Data.Version.versionBranch Paths.version) []+ }++ packageName, author :: String+ packageName = Distribution.Text.display packageIdentifier+ author = "Dr. Alistair Ward"++ printUsage = System.IO.hPutStrLn System.IO.stderr ("Usage:\t" ++ G.usageInfo progName optDescrList ++ " [<File-path> ...]") >> System.Exit.exitWith System.Exit.ExitSuccess++ args <- System.Environment.getArgs++ case G.getOpt G.RequireOrder optDescrList args of+ (commandLineActions, nonOptions, [{-errors-}]) -> do+ commandOptions <- Data.List.foldl' (>>=) (return {-to IO-monad-} ToolShed.Defaultable.defaultValue) commandLineActions++ if not $ ToolShed.SelfValidate.isValid commandOptions+ then fail $ ToolShed.SelfValidate.getFirstError commandOptions+ else if null nonOptions+ then fail "zero file-paths specified"+ else let+ standardInputProxy = "-"+ in do+ filePaths <- if standardInputProxy `elem` nonOptions+ then let+ getFilePaths :: IO [String]+ getFilePaths = do+ eof <- System.IO.isEOF++ if eof+ then return {-to IO-monad-} []+ else {-more to read-} (:) <$> getLine <*> getFilePaths {-recurse-}+ in do+ filePaths <- (filter (/= standardInputProxy) nonOptions ++) <$> getFilePaths++ if null filePaths+ then fail "zero file-paths"+ else return filePaths+ else {-real fileNames-} return {-to IO-monad-} nonOptions++ let (nDecimalDigits, verbosity) = Data.CommandOptions.getNDecimalDigits &&& Data.CommandOptions.getVerbosity $ commandOptions --Deconstruct.++ Control.Monad.when (verbosity == maxBound) $ System.IO.hPrint System.IO.stderr filePaths --CAVEAT: potentially very long.++ fileSizes <- mapM Data.File.findSize $ Data.List.nub filePaths --De-duplicate the file-paths, & find the corresponding file-sizes.++ let+ mean, standardDeviation :: Double+ (nFiles, mean, standardDeviation) = Data.File.getFileSizeStatistics fileSizes++ columnHeaders :: [String]+ columnHeaders = ["Bin", "Frequency"]++ columnWidths :: [Int]+ columnWidths = map length columnHeaders++ formatLine :: Data.File.FileSize -> Int -> IO ()+ formatLine bin = Text.Printf.printf "%*d\t%*d\n" (head columnWidths) bin (last columnWidths)++ Control.Monad.when (verbosity >= Distribution.Verbosity.verbose) $ do+ Control.Monad.void $ Text.Printf.hPrintf System.IO.stderr "Files=%d, mean=%.*f, standard-deviation=%.*f\n" nFiles nDecimalDigits mean nDecimalDigits standardDeviation --Print statistics.++ let tabulate = Data.List.intercalate "\t"++ Text.Printf.hPrintf System.IO.stderr "%s\n%s\n" (tabulate columnHeaders) (tabulate $ map (`replicate` '=') columnWidths) --Print column-headers.++ if standardDeviation == 0+ then formatLine 0 nFiles+ else let+ bins = map (`div` Data.Maybe.fromMaybe (round standardDeviation) (Data.CommandOptions.getBinSize commandOptions)) fileSizes++ frequencyDistribution+ | Data.CommandOptions.getIncludeEmpty commandOptions = Data.Map.fromList $ [0 .. maximum bins] `zip` repeat 0+ | otherwise = Data.Map.empty+ in mapM_ (uncurry formatLine) . Data.Map.toList $ foldr (+ uncurry (Data.Map.insertWith (+))+ ) frequencyDistribution $ bins `zip` repeat 1++ (_, _, errors) -> System.IO.Error.ioError . System.IO.Error.userError $ concatMap init {-chop-} errors+