81 lines
2.1 KiB
Haskell
81 lines
2.1 KiB
Haskell
{- git data types
|
|
-
|
|
- Copyright 2010-2012 Joey Hess <joey@kitenet.net>
|
|
-
|
|
- Licensed under the GNU GPL version 3 or higher.
|
|
-}
|
|
|
|
module Git.Types where
|
|
|
|
import Network.URI
|
|
import qualified Data.Map as M
|
|
|
|
{- Support repositories on local disk, and repositories accessed via an URL.
|
|
-
|
|
- Repos on local disk have a git directory, and unless bare, a worktree.
|
|
-
|
|
- A local repo may not have had its config read yet, in which case all
|
|
- that's known about it is its path.
|
|
-
|
|
- Finally, an Unknown repository may be known to exist, but nothing
|
|
- else known about it.
|
|
-}
|
|
data RepoLocation
|
|
= Local { gitdir :: FilePath, worktree :: Maybe FilePath }
|
|
| LocalUnknown FilePath
|
|
| Url URI
|
|
| Unknown
|
|
deriving (Show, Eq)
|
|
|
|
data Repo = Repo {
|
|
location :: RepoLocation,
|
|
config :: M.Map String String,
|
|
-- a given git config key can actually have multiple values
|
|
fullconfig :: M.Map String [String],
|
|
remotes :: [Repo],
|
|
-- remoteName holds the name used for this repo in remotes
|
|
remoteName :: Maybe String
|
|
} deriving (Show, Eq)
|
|
|
|
{- A git ref. Can be a sha1, or a branch or tag name. -}
|
|
newtype Ref = Ref String
|
|
deriving (Eq)
|
|
|
|
instance Show Ref where
|
|
show (Ref v) = v
|
|
|
|
{- Aliases for Ref. -}
|
|
type Branch = Ref
|
|
type Sha = Ref
|
|
type Tag = Ref
|
|
|
|
{- Types of objects that can be stored in git. -}
|
|
data ObjectType = BlobObject | CommitObject | TreeObject
|
|
deriving (Eq)
|
|
|
|
instance Show ObjectType where
|
|
show BlobObject = "blob"
|
|
show CommitObject = "commit"
|
|
show TreeObject = "tree"
|
|
|
|
readObjectType :: String -> Maybe ObjectType
|
|
readObjectType "blob" = Just BlobObject
|
|
readObjectType "commit" = Just CommitObject
|
|
readObjectType "tree" = Just TreeObject
|
|
readObjectType _ = Nothing
|
|
|
|
{- Types of blobs. -}
|
|
data BlobType = FileBlob | ExecutableBlob | SymlinkBlob
|
|
deriving (Eq)
|
|
|
|
{- Git uses magic numbers to denote the type of a blob. -}
|
|
instance Show BlobType where
|
|
show FileBlob = "100644"
|
|
show ExecutableBlob = "100755"
|
|
show SymlinkBlob = "120000"
|
|
|
|
readBlobType :: String -> Maybe BlobType
|
|
readBlobType "100644" = Just FileBlob
|
|
readBlobType "100755" = Just ExecutableBlob
|
|
readBlobType "120000" = Just SymlinkBlob
|
|
readBlobType _ = Nothing
|