Cabal-1.1.6: Distribution/Setup.hs
{-# OPTIONS -cpp #-}
-----------------------------------------------------------------------------
-- |
-- Module : Distribution.Setup
-- Copyright : Isaac Jones 2003-2004
--
-- Maintainer : Isaac Jones <ijones@syntaxpolice.org>
-- Stability : alpha
-- Portability : portable
--
-- Explanation: Data types and parser for the standard command-line
-- setup. Will also return commands it doesn't know about.
{- All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of Isaac Jones nor the names of other
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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module Distribution.Setup (--parseArgs,
module Distribution.Compiler,
Action(..),
ConfigFlags(..), emptyConfigFlags, configureArgs,
CopyFlags(..), CopyDest(..),
InstallFlags(..), emptyInstallFlags,
HaddockFlags(..), emptyHaddockFlags,
BuildFlags(..), CleanFlags(..), PFEFlags(..),
RegisterFlags(..), emptyRegisterFlags,
SDistFlags(..),
MaybeUserFlag(..), userOverride,
--optionHelpString,
#ifdef DEBUG
hunitTests,
#endif
parseGlobalArgs, defaultCompilerFlavor,
parseConfigureArgs, parseBuildArgs, parseCleanArgs,
parseHaddockArgs, parseProgramaticaArgs, parseTestArgs,
parseInstallArgs, parseSDistArgs, parseRegisterArgs,
parseUnregisterArgs, parseCopyArgs,
reqPathArg, reqDirArg
) where
-- Misc:
#ifdef DEBUG
import HUnit (Test(..))
#endif
import Distribution.Compiler (CompilerFlavor(..), Compiler(..))
import Distribution.Simple.Utils (die)
import Distribution.Program(ProgramConfiguration(..),
userSpecifyPath, userSpecifyArgs)
import Data.List(find)
import Distribution.Compat.Map (keys)
import Distribution.GetOpt
import Distribution.Compat.FilePath (platformPath)
import System.Exit
import System.Environment
-- type CommandLineOpts = (Action,
-- [String]) -- The un-parsed remainder
data Action = ConfigCmd ConfigFlags -- config
| BuildCmd -- build
| CleanCmd -- clean
| CopyCmd CopyDest -- copy (--destdir flag)
| HaddockCmd -- haddock
| ProgramaticaCmd -- pfesetup
| InstallCmd -- install (install-prefix)
| SDistCmd -- sdist
| TestCmd -- test
| RegisterCmd -- register
| UnregisterCmd -- unregister
| HelpCmd -- help
-- | NoCmd -- error case, help case.
-- | TestCmd 1.0?
-- | BDist -- 1.0
-- | CleanCmd -- clean
-- | NoCmd -- error case?
-- ------------------------------------------------------------
-- * Flag-related types
-- ------------------------------------------------------------
-- | Flags to @configure@ command
data ConfigFlags = ConfigFlags {
configPrograms :: ProgramConfiguration, -- ^All programs that cabal may run
configHcFlavor :: Maybe CompilerFlavor,
configHcPath :: Maybe FilePath, -- ^given compiler location
configHcPkg :: Maybe FilePath, -- ^given hc-pkg location
configHappy :: Maybe FilePath, -- ^Happy path
configAlex :: Maybe FilePath, -- ^Alex path
configHsc2hs :: Maybe FilePath, -- ^Hsc2hs path
configC2hs :: Maybe FilePath, -- ^C2hs path
configCpphs :: Maybe FilePath, -- ^Cpphs path
configGreencard:: Maybe FilePath, -- ^GreenCard path
configVanillaLib :: Bool, -- ^Enable vanilla library
configProfLib :: Bool, -- ^Enable profiling in the library
configProfExe :: Bool, -- ^Enable profiling in the executables.
configPrefix :: Maybe FilePath,
-- ^installation prefix
configBinDir :: Maybe FilePath,
-- ^installation dir for binaries,
configLibDir :: Maybe FilePath,
-- ^installation dir for object code libraries,
configLibSubDir :: Maybe FilePath,
-- ^subdirectory of libdir in which libs are installed
configLibExecDir :: Maybe FilePath,
-- ^installation dir for program executables,
configDataDir :: Maybe FilePath,
-- ^installation dir for read-only arch-independent data,
configDataSubDir :: Maybe FilePath,
-- ^subdirectory of datadir in which data files are installed
configVerbose :: Int, -- ^verbosity level
configUser :: Bool, -- ^--user flag?
configGHCiLib :: Bool, -- ^Enable compiling library for GHCi
configSplitObjs :: Bool -- ^Enable -split-objs with GHC
}
emptyConfigFlags :: ProgramConfiguration -> ConfigFlags
emptyConfigFlags progConf = ConfigFlags {
configPrograms = progConf,
configHcFlavor = defaultCompilerFlavor,
configHcPath = Nothing,
configHcPkg = Nothing,
-- configHaddock = EmptyLocation,
configHappy = Nothing,
configAlex = Nothing,
configHsc2hs = Nothing,
configC2hs = Nothing,
configVanillaLib = True,
configProfLib = False,
configProfExe = False,
configCpphs = Nothing,
configGreencard= Nothing,
configPrefix = Nothing,
configBinDir = Nothing,
configLibDir = Nothing,
configLibSubDir = Nothing,
configLibExecDir = Nothing,
configDataDir = Nothing,
configDataSubDir = Nothing,
configVerbose = 0,
configUser = False,
configGHCiLib = True,
configSplitObjs = False -- takes longer, so turn off by default
}
-- | Flags to @copy@: (destdir, copy-prefix (backwards compat), verbose)
data CopyFlags = CopyFlags {copyDest :: CopyDest
,copyVerbose :: Int}
data CopyDest
= NoCopyDest
| CopyTo FilePath
| CopyPrefix FilePath -- DEPRECATED
deriving (Eq, Show)
data MaybeUserFlag = MaybeUserNone -- ^no --user OR --global flag.
| MaybeUserUser -- ^--user flag
| MaybeUserGlobal -- ^--global flag
-- |A 'MaybeUserFlag' overrides the default --user setting
userOverride :: MaybeUserFlag -> Bool -> Bool
MaybeUserUser `userOverride` _ = True
MaybeUserGlobal `userOverride` _ = False
_ `userOverride` r = r
-- | Flags to @install@: (user package, verbose)
data InstallFlags = InstallFlags {installUserFlags::MaybeUserFlag
,installVerbose :: Int}
emptyInstallFlags :: InstallFlags
emptyInstallFlags = InstallFlags{ installUserFlags=MaybeUserNone,
installVerbose=0 }
-- | Flags to @sdist@: (snapshot, verbose)
data SDistFlags = SDistFlags {sDistSnapshot::Bool
,sDistVerbose:: Int}
-- | Flags to @register@ and @unregister@: (user package, gen-script,
-- in-place, verbose)
data RegisterFlags = RegisterFlags {regUser::MaybeUserFlag
,regGenScript::Bool
,regInPlace::Bool
,regWithHcPkg::Maybe FilePath
,regVerbose::Int}
emptyRegisterFlags :: RegisterFlags
emptyRegisterFlags = RegisterFlags { regUser=MaybeUserNone,
regGenScript=False,
regInPlace=False,
regWithHcPkg=Nothing,
regVerbose=0 }
data HaddockFlags = HaddockFlags {haddockHoogle :: Bool
,haddockVerbose :: Int}
emptyHaddockFlags :: HaddockFlags
emptyHaddockFlags = HaddockFlags {haddockHoogle = False, haddockVerbose = 0}
-- Following only have verbose flags, but for consistency and
-- extensibility we make them into a type.
data BuildFlags = BuildFlags {buildVerbose :: Int}
data CleanFlags = CleanFlags {cleanVerbose :: Int}
data PFEFlags = PFEFlags {pfeVerbose :: Int}
-- |Most of these flags are for Configure, but InstPrefix is for Copy.
data Flag a = GhcFlag | NhcFlag | HugsFlag | JhcFlag
| WithCompiler FilePath | WithHcPkg FilePath
| WithHappy FilePath | WithAlex FilePath
| WithHsc2hs FilePath | WithC2hs FilePath | WithCpphs FilePath
| WithGreencard FilePath
| WithVanillaLib | WithoutVanillaLib
| WithProfLib | WithoutProfLib
| WithProfExe | WithoutProfExe
| WithGHCiLib | WithoutGHCiLib
| WithSplitObjs | WithoutSplitObjs
| Prefix FilePath
| BinDir FilePath
| LibDir FilePath
| LibSubDir FilePath
| LibExecDir FilePath
| DataDir FilePath
| DataSubDir FilePath
| ProgramArgs String String -- program name, arguments
| WithProgram String FilePath -- program name, location
-- For install, register, and unregister:
| UserFlag | GlobalFlag
-- for register & unregister
| GenScriptFlag
| InPlaceFlag
-- For copy:
| InstPrefix FilePath
| DestDir FilePath
-- For sdist:
| Snapshot
-- For haddock:
| HaddockHoogle
-- For everyone:
| HelpFlag
| Verbose Int
-- | Version?
| Lift a
deriving (Show, Eq)
-- ------------------------------------------------------------
-- * Mostly parsing functions
-- ------------------------------------------------------------
defaultCompilerFlavor :: Maybe CompilerFlavor
defaultCompilerFlavor =
#if defined(__GLASGOW_HASKELL__)
Just GHC
#elif defined(__NHC__)
Just NHC
#elif defined(__JHC__)
Just JHC
#elif defined(__HUGS__)
Just Hugs
#else
Nothing
#endif
-- | Arguments to pass to a @configure@ script, e.g. generated by
-- @autoconf@.
configureArgs :: ConfigFlags -> [String]
configureArgs flags
= hc_flag ++
optFlag "with-hc-pkg" configHcPkg ++
optFlag "prefix" configPrefix ++
optFlag "bindir" configBinDir ++
optFlag "libdir" configLibDir ++
optFlag "libexecdir" configLibExecDir ++
optFlag "datadir" configDataDir
where
hc_flag = case (configHcFlavor flags, configHcPath flags) of
(_, Just hc_path) -> ["--with-hc=" ++ hc_path]
(Just hc, Nothing) -> ["--with-hc=" ++ showHC hc]
(Nothing,Nothing) -> []
optFlag name config_field = case config_field flags of
Just p -> ["--" ++ name ++ "=" ++ p]
Nothing -> []
showHC GHC = "ghc"
showHC NHC = "nhc98"
showHC JHC = "jhc"
showHC Hugs = "hugs"
showHC c = "unknown compiler: " ++ (show c)
cmd_help :: OptDescr (Flag a)
cmd_help = Option "h?" ["help"] (NoArg HelpFlag) "Show this help text"
cmd_verbose :: OptDescr (Flag a)
cmd_verbose = Option "v" ["verbose"] (OptArg verboseFlag "n") "Control verbosity (n is 0--5, normal verbosity level is 1, -v alone is equivalent to -v3)"
where
verboseFlag mb_s = Verbose (maybe 3 read mb_s)
cmd_with_hc_pkg :: OptDescr (Flag a)
cmd_with_hc_pkg = Option "" ["with-hc-pkg"] (reqPathArg WithHcPkg)
"give the path to the package tool"
-- Do we have any other interesting global flags?
globalOptions :: [OptDescr (Flag a)]
globalOptions = [
cmd_help
]
liftCustomOpts :: [OptDescr a] -> [OptDescr (Flag a)]
liftCustomOpts flags = [ Option shopt lopt (f adesc) help
| Option shopt lopt adesc help <- flags ]
where f (NoArg x) = NoArg (Lift x)
f (ReqArg g s) = ReqArg (Lift . g) s
f (OptArg g s) = OptArg (Lift . g) s
data Cmd a = Cmd {
cmdName :: String,
cmdHelp :: String, -- Short description
cmdDescription :: String, -- Long description
cmdOptions :: [OptDescr (Flag a)],
cmdAction :: Action
}
commandList :: ProgramConfiguration -> [Cmd a]
commandList progConf = [(configureCmd progConf), buildCmd, cleanCmd, installCmd,
copyCmd, sdistCmd, testCmd, haddockCmd, programaticaCmd,
registerCmd, unregisterCmd]
lookupCommand :: String -> [Cmd a] -> Maybe (Cmd a)
lookupCommand name = find ((==name) . cmdName)
printGlobalHelp :: ProgramConfiguration -> IO ()
printGlobalHelp progConf =
do pname <- getProgName
let syntax_line = "Usage: " ++ pname ++ " [GLOBAL FLAGS]\n or: " ++ pname ++ " COMMAND [FLAGS]\n\nGlobal flags:"
putStrLn (usageInfo syntax_line globalOptions)
putStrLn "Commands:"
let maxlen = maximum [ length (cmdName cmd) | cmd <- (commandList progConf) ]
sequence_ [ do putStr " "
putStr (align maxlen (cmdName cmd))
putStr " "
putStrLn (cmdHelp cmd)
| cmd <- (commandList progConf) ]
putStrLn $ "\nFor more information about a command, try '" ++ pname ++ " COMMAND --help'."
where align n str = str ++ replicate (n - length str) ' '
printCmdHelp :: Cmd a -> [OptDescr a] -> IO ()
printCmdHelp cmd opts = do pname <- getProgName
let syntax_line = "Usage: " ++ pname ++ " " ++ cmdName cmd ++ " [FLAGS]\n\nFlags for " ++ cmdName cmd ++ ":"
putStrLn (usageInfo syntax_line (cmdOptions cmd ++ liftCustomOpts opts))
putStr (cmdDescription cmd)
getCmdOpt :: Cmd a -> [OptDescr a] -> [String] -> ([Flag a], [String], [String])
getCmdOpt cmd opts s = let (a,_,c,d) = getOpt' Permute (cmdOptions cmd ++ liftCustomOpts opts) s
in (a,c,d)
-- We don't want to use elem, because that imposes Eq a
hasHelpFlag :: [Flag a] -> Bool
hasHelpFlag flags = not . null $ [ () | HelpFlag <- flags ]
parseGlobalArgs :: ProgramConfiguration -> [String] -> IO (Action,[String])
parseGlobalArgs progConf args =
case getOpt' RequireOrder globalOptions args of
(flags, _, _, []) | hasHelpFlag flags -> do
(printGlobalHelp progConf)
exitWith ExitSuccess
(_, cname:cargs, extra_args, []) -> do
case lookupCommand cname (commandList progConf) of
Just cmd -> return (cmdAction cmd, extra_args ++ cargs)
Nothing -> die $ "Unrecognised command: " ++ cname ++ " (try --help)"
(_, [], _, []) -> die $ "No command given (try --help)"
(_, _, _, errs) -> putErrors errs
configureCmd :: ProgramConfiguration -> Cmd a
configureCmd progConf = Cmd {
cmdName = "configure",
cmdHelp = "Prepare to build the package.",
cmdDescription = "", -- This can be a multi-line description
cmdOptions = [cmd_help, cmd_verbose,
Option "g" ["ghc"] (NoArg GhcFlag) "compile with GHC",
Option "n" ["nhc"] (NoArg NhcFlag) "compile with NHC",
Option "" ["jhc"] (NoArg JhcFlag) "compile with JHC",
Option "" ["hugs"] (NoArg HugsFlag) "compile with hugs",
Option "w" ["with-compiler"] (reqPathArg WithCompiler)
"give the path to a particular compiler",
cmd_with_hc_pkg,
Option "" ["prefix"] (reqDirArg Prefix)
"bake this prefix in preparation of installation",
Option "" ["bindir"] (reqDirArg BinDir)
"installation directory for executables",
Option "" ["libdir"] (reqDirArg LibDir)
"installation directory for libraries",
Option "" ["libsubdir"] (reqDirArg LibSubDir)
"subdirectory of libdir in which libs are installed",
Option "" ["libexecdir"] (reqDirArg LibExecDir)
"installation directory for program executables",
Option "" ["datadir"] (reqDirArg DataDir)
"installation directory for read-only data",
Option "" ["datasubdir"] (reqDirArg DataSubDir)
"subdirectory of datadir in which data files are installed",
Option "" ["with-happy"] (reqPathArg WithHappy)
"give the path to happy",
Option "" ["with-alex"] (reqPathArg WithAlex)
"give the path to alex",
Option "" ["with-hsc2hs"] (reqPathArg WithHsc2hs)
"give the path to hsc2hs",
Option "" ["with-c2hs"] (reqPathArg WithC2hs)
"give the path to c2hs",
Option "" ["with-cpphs"] (reqPathArg WithCpphs)
"give the path to cpphs",
Option "" ["with-greencard"] (reqPathArg WithGreencard)
"give the path to greencard",
Option "" ["enable-library-vanilla"] (NoArg WithVanillaLib)
"Enable vanilla libraries",
Option "" ["disable-library-vanilla"] (NoArg WithoutVanillaLib)
"Disable vanilla libraries",
Option "p" ["enable-library-profiling"] (NoArg WithProfLib)
"Enable library profiling",
Option "" ["disable-library-profiling"] (NoArg WithoutProfLib)
"Disable library profiling",
Option "" ["enable-executable-profiling"] (NoArg WithProfExe)
"Enable executable profiling",
Option "" ["disable-executable-profiling"] (NoArg WithoutProfExe)
"Disable executable profiling",
Option "" ["enable-library-for-ghci"] (NoArg WithGHCiLib)
"compile library for use with GHCi",
Option "" ["disable-library-for-ghci"] (NoArg WithoutGHCiLib)
"do not compile libraries for GHCi",
Option "" ["enable-split-objs"] (NoArg WithSplitObjs)
"split library into smaller objects to reduce binary sizes (GHC 6.6+)",
Option "" ["disable-split-objs"] (NoArg WithoutSplitObjs)
"split library into smaller objects to reduce binary sizes (GHC 6.6+)",
Option "" ["user"] (NoArg UserFlag)
"allow dependencies to be satisfied from the user package database. also implies install --user",
Option "" ["global"] (NoArg GlobalFlag)
"(default) dependencies must be satisfied from the global package database"
]
{-
FIX: Instead of using ++ here, we might add extra arguments. That
way, we can condense the help out put to something like
--with-{haddock,happy,alex,etc}
FIX: shouldn't use default. Look in hooks?.
-}
++ (withProgramOptions progConf)
++ (programArgsOptions progConf),
cmdAction = ConfigCmd (emptyConfigFlags progConf)
}
programArgsOptions :: ProgramConfiguration -> [OptDescr (Flag a)]
programArgsOptions (ProgramConfiguration conf) = map f (keys conf)
where f name = Option "" [name ++ "-args"] (reqPathArg (ProgramArgs name))
("give the args to " ++ name)
withProgramOptions :: ProgramConfiguration -> [OptDescr (Flag a)]
withProgramOptions (ProgramConfiguration conf) = map f (keys conf)
where f name = Option "" ["with-" ++ name] (reqPathArg (WithProgram name))
("give the path to " ++ name)
reqPathArg :: (FilePath -> a) -> ArgDescr a
reqPathArg constr = ReqArg (constr . platformPath) "PATH"
reqDirArg :: (FilePath -> a) -> ArgDescr a
reqDirArg constr = ReqArg (constr . platformPath) "DIR"
parseConfigureArgs :: ProgramConfiguration -> ConfigFlags -> [String] -> [OptDescr a] ->
IO (ConfigFlags, [a], [String])
parseConfigureArgs progConf = parseArgs (configureCmd progConf) updateCfg
where updateCfg t GhcFlag = t { configHcFlavor = Just GHC }
updateCfg t NhcFlag = t { configHcFlavor = Just NHC }
updateCfg t JhcFlag = t { configHcFlavor = Just JHC }
updateCfg t HugsFlag = t { configHcFlavor = Just Hugs }
updateCfg t (WithCompiler path) = t { configHcPath = Just path }
updateCfg t (WithHcPkg path) = t { configHcPkg = Just path }
updateCfg t (WithHappy path) = t { configHappy = Just path }
updateCfg t (WithAlex path) = t { configAlex = Just path }
updateCfg t (WithHsc2hs path) = t { configHsc2hs = Just path }
updateCfg t (WithC2hs path) = t { configC2hs = Just path }
updateCfg t (WithCpphs path) = t { configCpphs = Just path }
updateCfg t (WithGreencard path) = t { configGreencard= Just path }
updateCfg t (ProgramArgs name args) = t { configPrograms = (userSpecifyArgs
name
args (configPrograms t))}
updateCfg t (WithProgram name path) = t { configPrograms = (userSpecifyPath
name
path (configPrograms t))}
updateCfg t WithVanillaLib = t { configVanillaLib = True }
updateCfg t WithoutVanillaLib = t { configVanillaLib = False, configGHCiLib = False }
updateCfg t WithProfLib = t { configProfLib = True }
updateCfg t WithoutProfLib = t { configProfLib = False }
updateCfg t WithProfExe = t { configProfExe = True }
updateCfg t WithoutProfExe = t { configProfExe = False }
updateCfg t WithGHCiLib = t { configGHCiLib = True }
updateCfg t WithoutGHCiLib = t { configGHCiLib = False }
updateCfg t (Prefix path) = t { configPrefix = Just path }
updateCfg t (BinDir path) = t { configBinDir = Just path }
updateCfg t (LibDir path) = t { configLibDir = Just path }
updateCfg t (LibSubDir path) = t { configLibSubDir= Just path }
updateCfg t (LibExecDir path) = t { configLibExecDir = Just path }
updateCfg t (DataDir path) = t { configDataDir = Just path }
updateCfg t (DataSubDir path) = t { configDataSubDir = Just path }
updateCfg t (Verbose n) = t { configVerbose = n }
updateCfg t UserFlag = t { configUser = True }
updateCfg t GlobalFlag = t { configUser = False }
updateCfg t WithSplitObjs = t { configSplitObjs = True }
updateCfg t WithoutSplitObjs = t { configSplitObjs = False }
updateCfg t (Lift _) = t
updateCfg t _ = error $ "Unexpected flag!"
buildCmd :: Cmd a
buildCmd = Cmd {
cmdName = "build",
cmdHelp = "Make this package ready for installation.",
cmdDescription = "", -- This can be a multi-line description
cmdOptions = [cmd_help, cmd_verbose],
cmdAction = BuildCmd
}
parseBuildArgs :: [String] -> [OptDescr a] -> IO (BuildFlags, [a], [String])
parseBuildArgs = parseNoArgs buildCmd BuildFlags
haddockCmd :: Cmd a
haddockCmd = Cmd {
cmdName = "haddock",
cmdHelp = "Generate Haddock HTML code from Exposed-Modules.",
cmdDescription = "Requires cpphs and haddock.",
cmdOptions = [cmd_help, cmd_verbose,
Option "" ["hoogle"] (NoArg HaddockHoogle) "Generate a hoogle database"],
cmdAction = HaddockCmd
}
parseHaddockArgs :: HaddockFlags -> [String] -> [OptDescr a] -> IO (HaddockFlags, [a], [String])
parseHaddockArgs = parseArgs haddockCmd updateCfg
where updateCfg (HaddockFlags hoogle verbose) fl = case fl of
HaddockHoogle -> HaddockFlags True verbose
Verbose n -> HaddockFlags hoogle n
_ -> error "Unexpected flag!"
programaticaCmd :: Cmd a
programaticaCmd = Cmd {
cmdName = "pfe",
cmdHelp = "Generate Programatica Project.",
cmdDescription = "",
cmdOptions = [cmd_help, cmd_verbose],
cmdAction = ProgramaticaCmd
}
parseProgramaticaArgs :: [String] -> [OptDescr a] -> IO (PFEFlags, [a], [String])
parseProgramaticaArgs = parseNoArgs programaticaCmd PFEFlags
cleanCmd :: Cmd a
cleanCmd = Cmd {
cmdName = "clean",
cmdHelp = "Clean up after a build.",
cmdDescription = "Removes .hi, .o, preprocessed sources, etc.\n", -- Multi-line!
cmdOptions = [cmd_help, cmd_verbose],
cmdAction = CleanCmd
}
parseCleanArgs :: [String] -> [OptDescr a] -> IO (CleanFlags, [a], [String])
parseCleanArgs = parseNoArgs cleanCmd CleanFlags
installCmd :: Cmd a
installCmd = Cmd {
cmdName = "install",
cmdHelp = "Copy the files into the install locations. Run register.",
cmdDescription = "Unlike the copy command, install calls the register command.\nIf you want to install into a location that is not what was\nspecified in the configure step, use the copy command.\n",
cmdOptions = [cmd_help, cmd_verbose,
Option "" ["install-prefix"] (reqDirArg InstPrefix)
"[DEPRECATED, use copy]",
Option "" ["user"] (NoArg UserFlag)
"upon registration, register this package in the user's local package database",
Option "" ["global"] (NoArg GlobalFlag)
"(default; override with configure) upon registration, register this package in the system-wide package database"
],
cmdAction = InstallCmd
}
copyCmd :: Cmd a
copyCmd = Cmd {
cmdName = "copy",
cmdHelp = "Copy the files into the install locations.",
cmdDescription = "Does not call register, and allows a prefix at install time\nWithout the --destdir flag, configure determines location.\n",
cmdOptions = [cmd_help, cmd_verbose,
Option "" ["destdir"] (reqDirArg DestDir)
"directory to copy files to, prepended to installation directories",
Option "" ["copy-prefix"] (reqDirArg InstPrefix)
"[DEPRECATED, directory to copy files to instead of prefix]"
],
cmdAction = CopyCmd NoCopyDest
}
parseCopyArgs :: CopyFlags -> [String] -> [OptDescr a] ->
IO (CopyFlags, [a], [String])
parseCopyArgs = parseArgs copyCmd updateCfg
where updateCfg (CopyFlags copydest verbose) fl = case fl of
InstPrefix path -> (CopyFlags (CopyPrefix path) verbose)
DestDir path -> (CopyFlags (CopyTo path) verbose)
Verbose n -> (CopyFlags copydest n)
_ -> error $ "Unexpected flag!"
parseInstallArgs :: InstallFlags -> [String] -> [OptDescr a] ->
IO (InstallFlags, [a], [String])
parseInstallArgs = parseArgs installCmd updateCfg
where updateCfg (InstallFlags uFlag verbose) fl = case fl of
InstPrefix _ -> error "--install-prefix is obsolete. Use copy command instead."
UserFlag -> (InstallFlags MaybeUserUser verbose)
GlobalFlag -> (InstallFlags MaybeUserGlobal verbose)
Verbose n -> (InstallFlags uFlag n)
_ -> error $ "Unexpected flag!"
sdistCmd :: Cmd a
sdistCmd = Cmd {
cmdName = "sdist",
cmdHelp = "Generate a source distribution file (.tar.gz or .zip).",
cmdDescription = "", -- This can be a multi-line description
cmdOptions = [cmd_help,cmd_verbose,
Option "" ["snapshot"] (NoArg Snapshot)
"Produce a snapshot source distribution"
],
cmdAction = SDistCmd
}
parseSDistArgs :: [String] -> [OptDescr a] -> IO (SDistFlags, [a], [String])
parseSDistArgs = parseArgs sdistCmd updateCfg (SDistFlags False 0)
where updateCfg (SDistFlags snapshot verbose) fl = case fl of
Snapshot -> (SDistFlags True verbose)
Verbose n -> (SDistFlags snapshot n)
_ -> error $ "Unexpected flag!"
testCmd :: Cmd a
testCmd = Cmd {
cmdName = "test",
cmdHelp = "Run the test suite, if any (configure with UserHooks).",
cmdDescription = "", -- This can be a multi-line description
cmdOptions = [cmd_help,cmd_verbose],
cmdAction = TestCmd
}
parseTestArgs :: [String] -> [OptDescr a] -> IO (Int, [a], [String])
parseTestArgs = parseNoArgs testCmd id
registerCmd :: Cmd a
registerCmd = Cmd {
cmdName = "register",
cmdHelp = "Register this package with the compiler.",
cmdDescription = "", -- This can be a multi-line description
cmdOptions = [cmd_help, cmd_verbose,
Option "" ["user"] (NoArg UserFlag)
"upon registration, register this package in the user's local package database",
Option "" ["global"] (NoArg GlobalFlag)
"(default) upon registration, register this package in the system-wide package database",
Option "" ["inplace"] (NoArg InPlaceFlag)
"register the package in the build location, so it can be used without being installed",
Option "" ["gen-script"] (NoArg GenScriptFlag)
"Instead of performing the register command, generate a script to register later",
cmd_with_hc_pkg
],
cmdAction = RegisterCmd
}
parseRegisterArgs :: RegisterFlags -> [String] -> [OptDescr a] ->
IO (RegisterFlags, [a], [String])
parseRegisterArgs = parseArgs registerCmd updateCfg
where updateCfg reg fl = case fl of
UserFlag -> reg { regUser=MaybeUserUser }
GlobalFlag -> reg { regUser=MaybeUserGlobal }
Verbose n -> reg { regVerbose=n }
GenScriptFlag -> reg { regGenScript=True }
InPlaceFlag -> reg { regInPlace=True }
WithHcPkg f -> reg { regWithHcPkg=Just f }
_ -> error $ "Unexpected flag!"
unregisterCmd :: Cmd a
unregisterCmd = Cmd {
cmdName = "unregister",
cmdHelp = "Unregister this package with the compiler.",
cmdDescription = "", -- This can be a multi-line description
cmdOptions = [cmd_help, cmd_verbose,
Option "" ["user"] (NoArg UserFlag)
"unregister this package in the user's local package database",
Option "" ["global"] (NoArg GlobalFlag)
"(default) unregister this package in the system-wide package database",
Option "" ["gen-script"] (NoArg GenScriptFlag)
"Instead of performing the unregister command, generate a script to unregister later"
],
cmdAction = UnregisterCmd
}
parseUnregisterArgs :: RegisterFlags -> [String] -> [OptDescr a] ->
IO (RegisterFlags, [a], [String])
parseUnregisterArgs = parseRegisterArgs
-- |Helper function for commands with no arguments except for verbose
-- and help.
parseNoArgs :: (Cmd a)
-> (Int -> b) -- Constructor to make this type.
-> [String] -> [OptDescr a]-> IO (b, [a], [String])
parseNoArgs cmd c = parseArgs cmd updateCfg (c 0)
where
updateCfg _ (Verbose n) = c n
updateCfg _ _ = error "Unexpected flag!"
-- |Helper function for commands with more options.
parseArgs :: Cmd a -> (cfg -> Flag a -> cfg) -> cfg ->
[String] -> [OptDescr a] -> IO (cfg, [a], [String])
parseArgs cmd updateCfg cfg args customOpts =
case getCmdOpt cmd customOpts args of
(flags, _, []) | hasHelpFlag flags -> do
printCmdHelp cmd customOpts
exitWith ExitSuccess
(flags, args', []) ->
let flags' = filter (not.isLift) flags in
return (foldl updateCfg cfg flags', unliftFlags flags, args')
(_, _, errs) -> putErrors errs
where
isLift (Lift _) = True
isLift _ = False
unliftFlags :: [Flag a] -> [a]
unliftFlags flags = [ fl | Lift fl <- flags ]
putErrors :: [String] -> IO a
putErrors errs = die $ "Errors:" ++ concat ['\n':err | err <- errs]
#ifdef DEBUG
hunitTests :: [Test]
hunitTests = []
-- The test cases kinda have to be rewritten from the ground up... :/
--hunitTests =
-- let m = [("ghc", GHC), ("nhc", NHC), ("hugs", Hugs)]
-- (flags, commands', unkFlags, ers)
-- = getOpt Permute options ["configure", "foobar", "--prefix=/foo", "--ghc", "--nhc", "--hugs", "--with-compiler=/comp", "--unknown1", "--unknown2", "--install-prefix=/foo", "--user", "--global"]
-- in [TestLabel "very basic option parsing" $ TestList [
-- "getOpt flags" ~: "failed" ~:
-- [Prefix "/foo", GhcFlag, NhcFlag, HugsFlag,
-- WithCompiler "/comp", InstPrefix "/foo", UserFlag, GlobalFlag]
-- ~=? flags,
-- "getOpt commands" ~: "failed" ~: ["configure", "foobar"] ~=? commands',
-- "getOpt unknown opts" ~: "failed" ~:
-- ["--unknown1", "--unknown2"] ~=? unkFlags,
-- "getOpt errors" ~: "failed" ~: [] ~=? ers],
--
-- TestLabel "test location of various compilers" $ TestList
-- ["configure parsing for prefix and compiler flag" ~: "failed" ~:
-- (Right (ConfigCmd (Just comp, Nothing, Just "/usr/local"), []))
-- ~=? (parseArgs ["--prefix=/usr/local", "--"++name, "configure"])
-- | (name, comp) <- m],
--
-- TestLabel "find the package tool" $ TestList
-- ["configure parsing for prefix comp flag, withcompiler" ~: "failed" ~:
-- (Right (ConfigCmd (Just comp, Just "/foo/comp", Just "/usr/local"), []))
-- ~=? (parseArgs ["--prefix=/usr/local", "--"++name,
-- "--with-compiler=/foo/comp", "configure"])
-- | (name, comp) <- m],
--
-- TestLabel "simpler commands" $ TestList
-- [flag ~: "failed" ~: (Right (flagCmd, [])) ~=? (parseArgs [flag])
-- | (flag, flagCmd) <- [("build", BuildCmd),
-- ("install", InstallCmd Nothing False),
-- ("sdist", SDistCmd),
-- ("register", RegisterCmd False)]
-- ]
-- ]
#endif
{- Testing ideas:
* IO to look for hugs and hugs-pkg (which hugs, etc)
* quickCheck to test permutations of arguments
* what other options can we over-ride with a command-line flag?
-}