| Safe Haskell | None |
|---|
PackageConfig
Description
Package configuration information: essentially the interface to Cabal, with some utilities
- mkPackageId :: PackageIdentifier -> PackageId
- packageConfigId :: PackageConfig -> PackageId
- type PackageConfig = InstalledPackageInfo_ ModuleName
- data InstalledPackageInfo_ m = InstalledPackageInfo {
- installedPackageId :: InstalledPackageId
- sourcePackageId :: PackageId
- license :: License
- copyright :: String
- maintainer :: String
- author :: String
- stability :: String
- homepage :: String
- pkgUrl :: String
- synopsis :: String
- description :: String
- category :: String
- exposed :: Bool
- exposedModules :: [m]
- hiddenModules :: [m]
- trusted :: Bool
- importDirs :: [FilePath]
- libraryDirs :: [FilePath]
- hsLibraries :: [String]
- extraLibraries :: [String]
- extraGHCiLibraries :: [String]
- includeDirs :: [FilePath]
- includes :: [String]
- depends :: [InstalledPackageId]
- hugsOptions :: [String]
- ccOptions :: [String]
- ldOptions :: [String]
- frameworkDirs :: [FilePath]
- frameworks :: [String]
- haddockInterfaces :: [FilePath]
- haddockHTMLs :: [FilePath]
- display :: Text a => a -> String
- data Version = Version {
- versionBranch :: [Int]
- versionTags :: [String]
- data PackageIdentifier = PackageIdentifier {}
- defaultPackageConfig :: PackageConfig
- packageConfigToInstalledPackageInfo :: PackageConfig -> InstalledPackageInfo
- installedPackageInfoToPackageConfig :: InstalledPackageInfo_ String -> PackageConfig
Documentation
Mostly the compiler deals in terms of PackageNames, which don't
have the version suffix. This is so that we don't need to know the
version for the -package-name flag, or know the versions of
wired-in packages like base & rts. Versions are confined to the
package sub-system.
This means that in theory you could have multiple base packages installed
(for example), and switch between them using -package/-hide-package.
PackageId
mkPackageId :: PackageIdentifier -> PackageIdSource
Turn a Cabal PackageIdentifier into a GHC PackageId
packageConfigId :: PackageConfig -> PackageIdSource
Get the GHC PackageId right out of a Cabalish PackageConfig
The PackageConfig type: information about a package
data InstalledPackageInfo_ m Source
Constructors
| InstalledPackageInfo | |
Fields
| |
Instances
| Read m => Read (InstalledPackageInfo_ m) | |
| Show m => Show (InstalledPackageInfo_ m) | |
| Package (InstalledPackageInfo_ str) | |
| Binary m => Binary (InstalledPackageInfo_ m) |
A Version represents the version of a software entity.
An instance of Eq is provided, which implements exact equality
modulo reordering of the tags in the versionTags field.
An instance of Ord is also provided, which gives lexicographic
ordering on the versionBranch fields (i.e. 2.1 > 2.0, 1.2.3 > 1.2.2,
etc.). This is expected to be sufficient for many uses, but note that
you may need to use a more specific ordering for your versioning
scheme. For example, some versioning schemes may include pre-releases
which have tags "pre1", "pre2", and so on, and these would need to
be taken into account when determining ordering. In some cases, date
ordering may be more appropriate, so the application would have to
look for date tags in the versionTags field and compare those.
The bottom line is, don't always assume that compare and other Ord
operations are the right thing for every Version.
Similarly, concrete representations of versions may differ. One
possible concrete representation is provided (see showVersion and
parseVersion), but depending on the application a different concrete
representation may be more appropriate.
Constructors
| Version | |
Fields
| |
data PackageIdentifier Source
The name and version of a package.
Constructors
| PackageIdentifier | |
Fields
| |
packageConfigToInstalledPackageInfo :: PackageConfig -> InstalledPackageInfoSource
Turn a PackageConfig, which contains GHC ModuleNames into a Cabal specific
InstalledPackageInfo which contains Cabal ModuleNames
installedPackageInfoToPackageConfig :: InstalledPackageInfo_ String -> PackageConfigSource
Turn an InstalledPackageInfo, which contains Cabal ModuleNames
into a GHC specific PackageConfig which contains GHC ModuleNames