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{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE NoImplicitPrelude #-}
module Omni.Namespace
( Namespace (..),
Ext (..),
fromPath,
toPath,
toModule,
fromHaskellContent,
fromHaskellModule,
toHaskellModule,
toSchemeModule,
fromPythonModule,
isCab,
groupByExt,
dotSeparated,
)
where
import Alpha
import qualified Data.Aeson as Aeson
import qualified Data.Aeson.Types as Aeson
import qualified Data.Char as Char
import qualified Data.List as List
import qualified Data.List.Split as List
import qualified Data.Map as Map
import qualified Data.Text as Text
import qualified Text.Regex.Applicative as Regex
data Ext
= C
| Css
| Hs
| Html
| Json
| Keys
| Lisp
| Md
| Nix
| None
| Py
| Rs
| Scm
| Sh
| Toml
deriving (Eq, Show, Generic, Aeson.ToJSON, Ord)
data Namespace = Namespace {path :: [String], ext :: Ext}
deriving (Eq, Show, Generic, Aeson.ToJSON, Ord)
instance Aeson.ToJSONKey Namespace where
toJSONKey = Aeson.toJSONKeyText (Text.pack <. toPath)
fromPath :: String -> String -> Maybe Namespace
fromPath coderoot absPath =
List.stripPrefix coderoot absPath
+> List.stripPrefix "/"
+> Regex.match (Namespace </ rePath <* dot <*> reExt)
toPath :: Namespace -> FilePath
toPath (Namespace parts ext) =
joinWith "/" parts <> toExt ext
toExt :: Ext -> String
toExt =
("." <>) <. \case
C -> "c"
Css -> "css"
Hs -> "hs"
Html -> "html"
Json -> "json"
Keys -> "pub"
Lisp -> "lisp"
Md -> "md"
Nix -> "nix"
None -> "none"
Py -> "py"
Rs -> "rs"
Scm -> "scm"
Sh -> "sh"
Toml -> "toml"
fromHaskellContent :: String -> Maybe Namespace
fromHaskellContent c = case Regex.findFirstInfix haskellModule c of
Nothing -> Nothing
Just (_, Namespace {..}, _) -> Just <| Namespace (filter (/= ".") path) ext
where
haskellModule =
Namespace
</ (Regex.string "\nmodule " *> Regex.many (name <|> dot))
<*> pure Hs
dotSeparated :: [String] -> String
dotSeparated = joinWith "."
toModule :: Namespace -> String
toModule (Namespace parts Hs) = dotSeparated parts
toModule (Namespace parts Py) = dotSeparated parts
toModule (Namespace parts Scm) = "(" ++ joinWith " " parts ++ ")"
toModule (Namespace parts Rs) = joinWith "::" parts
toModule (Namespace parts C) = joinWith "/" parts <> ".c"
toModule (Namespace parts Nix) = joinWith "/" parts <> ".nix"
toModule (Namespace parts Lisp) = "(" ++ joinWith " " parts ++ ")"
toModule (Namespace {..}) = panic <| "toModule not implemented for " <> show ext
toHaskellModule :: Namespace -> String
toHaskellModule = toModule
fromHaskellModule :: String -> Namespace
fromHaskellModule s = Namespace (List.splitOn "." s) Hs
toSchemeModule :: Namespace -> String
toSchemeModule = toModule
fromPythonModule :: String -> Namespace
fromPythonModule s = Namespace (List.splitOn "." s) Py
dot :: Regex.RE Char String
dot = Regex.some <| Regex.sym '.'
name :: Regex.RE Char String
name =
Regex.many (Regex.psym Char.isUpper)
<> ( Regex.many
<| Regex.psym
<| \c -> Char.isAlphaNum c || c == '_' || c == '-'
)
rePath :: Regex.RE Char [String]
rePath = Regex.many (name <* Regex.string "/" <|> name)
reExt :: Regex.RE Char Ext
reExt =
C
<$ Regex.string "c"
<|> Css
<$ Regex.string "css"
<|> Hs
<$ Regex.string "hs"
<|> Html
<$ Regex.string "html"
<|> Json
<$ Regex.string "json"
<|> Keys
<$ Regex.string "pub"
<|> Lisp
<$ Regex.string "lisp"
<|> Md
<$ Regex.string "md"
<|> Nix
<$ Regex.string "nix"
<|> Py
<$ Regex.string "py"
<|> Rs
<$ Regex.string "rs"
<|> Scm
<$ Regex.string "scm"
<|> Sh
<$ Regex.string "sh"
<|> Toml
<$ Regex.string "toml"
-- | The cab dir is for temporary files and build outputs, not for source
-- inputs.
isCab :: FilePath -> Bool
isCab ('_' : _) = True
isCab fp = "/_/" `List.isInfixOf` fp
-- | Group a list of Namespaces keyed by their extensions
groupByExt :: [Namespace] -> Map Ext [Namespace]
groupByExt ns's = Map.fromListWith (++) [(ext ns, [ns]) | ns <- ns's]
|
