Generate .psci file

Resolves #11

1 files changed, 44 insertions, 8 deletions

diff --git a/src/Loader.purs b/src/Loader.purs
index 0235da9..872a51c 100644
--- a/src/Loader.purs
+++ b/src/Loader.purs
@@ -9,36 +9,72 @@ import Control.Monad.Eff (Eff())
 import Control.Monad.Eff.Class (liftEff)
 import Control.Monad.Eff.Exception (error)
 
-import Data.Array ((!!))
+import Data.Array ((!!), concat)
 import Data.Function (Fn2(), mkFn2)
 import Data.Maybe (Maybe(..), fromMaybe, maybe)
+import Data.String (joinWith)
 import Data.String.Regex (match, noFlags, regex)
 
 import PursLoader.ChildProcess (ChildProcess(), spawn)
+import PursLoader.FS (FS(), writeFileUtf8)
+import PursLoader.Glob (Glob(), globAll)
 import PursLoader.LoaderRef (LoaderRef(), Loader(), async, cacheable, query)
-import PursLoader.LoaderUtil (getRemainingRequest, parseQuery)
-import PursLoader.Options (loaderSrcOption, pscOptions)
+import PursLoader.LoaderUtil (parseQuery)
+import PursLoader.Options (loaderFFIOption, loaderSrcOption, pscOptions)
 
-type Effects eff = (loader :: Loader, cp :: ChildProcess | eff)
+type Effects eff = (cp :: ChildProcess, fs :: FS, glob :: Glob, loader :: Loader | eff)
 
 moduleRegex = regex "(?:^|\\n)module\\s+([\\w\\.]+)" noFlags { ignoreCase = true }
 
 pscCommand = "psc"
 
+psciCommand = "psci"
+
+psciFilename = ".psci"
+
 (!!!) = flip (!!)
 
+foreign import cwd "var cwd = process.cwd();" :: String
+
+foreign import relative """
+function relative(from) {
+  return function(to){
+    var path = require('path');
+    return path.relative(from, to);
+  };
+}
+""" :: String -> String -> String
+
+mkPsci :: [[String]] -> [[String]] -> String
+mkPsci srcs ffis = joinWith "\n" ((loadModule <$> concat srcs) <> (loadForeign <$> concat ffis))
+  where
+    loadModule :: String -> String
+    loadModule a = ":m " ++ relative cwd a
+
+    loadForeign :: String -> String
+    loadForeign a = ":f " ++ relative cwd a
+
 loader' :: forall eff. LoaderRef -> String -> Aff (Effects eff) (Maybe String)
 loader' ref source = do
   liftEff $ cacheable ref
 
-  let request = getRemainingRequest ref
-      parsed = parseQuery $ query ref
+  let parsed = parseQuery $ query ref
       srcs = fromMaybe [] (loaderSrcOption parsed)
+      ffis = fromMaybe [] (loaderFFIOption parsed)
       opts = pscOptions parsed
-      moduleName = match moduleRegex source >>= (!!!) 1
-      result = (\a -> "module.exports = require('" ++ a ++ "');") <$> moduleName
 
   spawn pscCommand (srcs <> opts)
+
+  srcss <- globAll srcs
+  ffiss <- globAll ffis
+
+  let psciFile = mkPsci srcss ffiss
+
+  writeFileUtf8 psciFilename psciFile
+
+  let moduleName = match moduleRegex source >>= (!!!) 1
+      result = (\a -> "module.exports = require('" ++ a ++ "');") <$> moduleName
+
   return result
 
 loader :: forall eff. LoaderRef -> String -> Eff (Effects eff) Unit