hopefully the last revision of the relative paths handling algorithm

src/GF/Infra/Option.hs

@@ -7,7 +7,7 @@ module GF.Infra.Option
      SISRFormat(..), Optimization(..), CFGTransform(..), HaskellOption(..),
      Dump(..), Printer(..), Recomp(..), BuildParser(..),
      -- * Option parsing 
-     parseOptions, parseModuleOptions,
+     parseOptions, parseModuleOptions, fixRelativeLibPaths,
      -- * Option pretty-printing
      optionsGFO,
      optionsPGF,
@@ -186,29 +186,27 @@ instance Show Options where
 
 -- Option parsing
 
-parseOptions :: FilePath                   -- ^ if there are relative file paths they will be interpreted as relative to this path
-             -> [String]                   -- ^ list of string arguments
+parseOptions :: [String]                   -- ^ list of string arguments
              -> Err (Options, [FilePath])
-parseOptions root args 
+parseOptions args 
   | not (null errs) = errors errs
   | otherwise       = do opts <- liftM concatOptions $ sequence optss
-                         return (fixRelativeLibPaths opts, files)
+                         return (opts, files)
   where
     (optss, files, errs) = getOpt RequireOrder optDescr args
-  
-    fixRelativeLibPaths  (Options o) = Options (fixPathFlags . o)
-      where
-        fixPathFlags f@(Flags{optLibraryPath=path}) = f{optLibraryPath=map (root </>) path}
 
-parseModuleOptions :: FilePath                   -- ^ if there are relative file paths they will be interpreted as relative to this path
-                   -> [String]                   -- ^ list of string arguments
+parseModuleOptions :: [String]                   -- ^ list of string arguments
                    -> Err Options
-parseModuleOptions root args = do
-  (opts,nonopts) <- parseOptions root args
+parseModuleOptions args = do
+  (opts,nonopts) <- parseOptions args
   if null nonopts 
     then return opts
     else errors $ map ("Non-option among module options: " ++) nonopts
 
+fixRelativeLibPaths curr_dir lib_dir (Options o) = Options (fixPathFlags . o)
+  where
+    fixPathFlags f@(Flags{optLibraryPath=path}) = f{optLibraryPath=concatMap (\dir -> [curr_dir </> dir, lib_dir </> dir]) path}
+
 -- Showing options
 
 -- | Pretty-print the options that are preserved in .gfo files.

src/GF/Infra/UseIO.hs

@@ -57,8 +57,8 @@ type FullPath = String
 gfLibraryPath    = "GF_LIB_PATH"
 gfGrammarPathVar = "GF_GRAMMAR_PATH"
 
-getLibraryPath :: Options -> IO FilePath
-getLibraryPath opts =
+getLibraryDirectory :: Options -> IO FilePath
+getLibraryDirectory opts =
   case flag optGFLibPath opts of
     Just path -> return path
     Nothing   -> catch
@@ -66,19 +66,19 @@ getLibraryPath opts =
                    (\ex -> getDataDir >>= \path -> return (path </> "lib"))
 
 getGrammarPath :: FilePath -> IO [FilePath]
-getGrammarPath lib_path = do
-  catch (fmap splitSearchPath $ getEnv gfGrammarPathVar) (\_ -> return [lib_path </> "prelude"])     -- e.g. GF_GRAMMAR_PATH
+getGrammarPath lib_dir = do
+  catch (fmap splitSearchPath $ getEnv gfGrammarPathVar) (\_ -> return [lib_dir </> "prelude"])     -- e.g. GF_GRAMMAR_PATH
 
 -- | extends the search path with the
 -- 'gfLibraryPath' and 'gfGrammarPathVar'
 -- environment variables. Returns only existing paths.
-extendPathEnv :: Options -> FilePath -> IO [FilePath]
-extendPathEnv opts fdir = do
-  opt_paths <- return $ flag optLibraryPath opts         -- e.g. paths given as options
-  lib_path  <- getLibraryPath opts                       -- e.g. GF_LIB_PATH
-  grm_paths <- getGrammarPath lib_path                   -- e.g. GF_GRAMMAR_PATH
-  let paths = opt_paths ++ [lib_path] ++ grm_paths
-  ps <- liftM (nub . concat) $ mapM allSubdirs paths
+extendPathEnv :: Options -> IO [FilePath]
+extendPathEnv opts = do
+  opt_path <- return $ flag optLibraryPath opts         -- e.g. paths given as options
+  lib_dir  <- getLibraryDirectory opts                  -- e.g. GF_LIB_PATH
+  grm_path <- getGrammarPath lib_dir                   -- e.g. GF_GRAMMAR_PATH
+  let paths = opt_path ++ [lib_dir] ++ grm_path
+  ps <- liftM concat $ mapM allSubdirs paths
   mapM canonicalizePath ps
   where
     allSubdirs :: FilePath -> IO [FilePath]