reads package:cabal-install

type ReadS a = String -> [(a, String)]
cabal-install Distribution.Deprecated.ReadP
A parser for a type a, represented as a function that takes a String and returns a list of possible parses as (a,String) pairs. Note that this kind of backtracking parser is very inefficient; reading a large structure may be quite slow (cf ReadP).
readSourcePackageCabalFile :: Verbosity -> FilePath -> ByteString -> IO GenericPackageDescription
cabal-install Distribution.Client.ProjectConfig
Wrapper for the .cabal file parser. It reports warnings on higher verbosity levels and throws CabalFileParseError on failure.
readSourcePackageCabalFile' :: (String -> IO ()) -> FilePath -> ByteString -> IO GenericPackageDescription
cabal-install Distribution.Client.ProjectConfig
Like readSourcePackageCabalFile, but the warn function is an argument. This is used when reading .cabal files in indexes, where warnings should generally be ignored.
readSavedArgs :: FilePath -> IO (Maybe [String])
cabal-install Distribution.Client.SavedFlags
readS_to_P :: ReadS a -> ReadP r a
cabal-install Distribution.Deprecated.ReadP
Converts a Haskell ReadS-style function into a parser. Warning: This introduces local backtracking in the resulting parser, and therefore a possible inefficiency.
fetchAndReadSourcePackages :: Verbosity -> DistDirLayout -> Maybe Compiler -> ProjectConfigShared -> ProjectConfigBuildOnly -> [ProjectPackageLocation] -> Rebuild [PackageSpecifier (SourcePackage UnresolvedPkgLoc)]
cabal-install Distribution.Client.ProjectConfig
Read the .cabal files for a set of packages. For remote tarballs and VCS source repos this also fetches them if needed. Note here is where we convert from project-root relative paths to absolute paths.