Install minibar and some example grammars along with pgf-http

Together with the changes to pgf-http, this should make it much easier to run
the PGF service and minibar locally.

src/server/Setup.hs

@@ -1,6 +1,89 @@
-module Main where
+{-# OPTIONS_GHC -fwarn-unused-imports #-}
+
+import Control.Monad(when)
+import System.Directory(createDirectoryIfMissing,doesFileExist,
+                        getDirectoryContents,copyFile,removeFile)
+import System.FilePath((</>))
+import System.Cmd(system)
+import System.Exit(ExitCode(..))
 
 import Distribution.Simple
+import Distribution.Simple.Setup
+import Distribution.Simple.LocalBuildInfo(datadir,buildDir,absoluteInstallDirs)
 
 main :: IO ()
-main = defaultMainWithHooks simpleUserHooks
+main = defaultMainWithHooks simpleUserHooks{ postInst = instWWW
+                                           , postCopy = copyWWW
+                                           }
+--------------------------------------------------------------------------------
+-- To test the GF web service and minibar, use "cabal install" (or
+-- "runhaskell Setup.hs install") to install the program pgf-http, the
+-- example grammars listed below, and the minibar. Then start the server with
+-- the command "pgf-http" and open http://localhost:41296/minibar/minibar.html
+-- in your web browser (Firefox, Safari, Opera or Chrome).
+
+example_grammars =
+ -- (pgf, tmp, src)
+   [("Foods.pgf","foods",
+     ".."</>".."</>"contrib"</>"summerschool"</>"foods"</>"Foods???.gf"),
+    ("Letter.pgf","letter",
+     ".."</>".."</>"examples"</>"letter"</>"Letter???.gf")]
+
+minibar_src = ".."</>"runtime"</>"javascript"</>"minibar"
+
+--------------------------------------------------------------------------------
+instWWW args flags pki lbi = setupWWW args dest pki lbi
+  where
+    dest = NoCopyDest
+
+copyWWW args flags pki lbi = setupWWW args dest pki lbi
+  where
+    dest = case copyDest flags of
+             NoFlag -> NoCopyDest
+             Flag d -> d
+
+setupWWW args dest pkg lbi =
+    do mapM_ (createDirectoryIfMissing True) [grammars_dir,minibar_dir]
+       mapM_ build_pgf example_grammars
+       copy_minibar
+       create_root_index
+  where
+    grammars_dir = www_dir </> "grammars"
+    minibar_dir = www_dir </> "minibar"
+    www_dir = datadir (absoluteInstallDirs pkg lbi dest) </> "www"
+    gfo_dir = buildDir lbi </> "gfo"
+
+    build_pgf (pgf,tmp,src) =
+      do createDirectoryIfMissing True tmp_dir
+         execute cmd
+         copyFile pgf (grammars_dir</>pgf)
+         removeFile pgf
+      where
+        tmp_dir = gfo_dir</>tmp
+        cmd = "gf -make -s -optimize-pgf --gfo-dir="++tmp_dir++
+           -- " --output-dir="++grammars_dir++  -- has no effect?!
+              " "++src
+
+    copy_minibar =
+      do files <- getDirectoryContents minibar_src
+         mapM_ copy files
+      where
+        copy file =
+            do isFile <- doesFileExist src 
+               when isFile $ copyFile src (minibar_dir</>file)
+          where
+            src = minibar_src</>file
+
+    create_root_index = writeFile (www_dir</>"index.html") index_html
+
+    index_html = "<h2>Available demos</h2>\n"
+                 ++"<ul><li><a href=\"minibar/minibar.html\">Minibar</a></ul>"
+                 ++"Additional grammars can be installed in"
+                 ++"<blockquote><code>"++grammars_dir++"</code></blockquote>"
+execute command =
+  do putStrLn command
+     e <- system command
+     case e of
+       ExitSuccess -> return ()
+       _ -> fail "Command failed"
+     return ()

src/server/gf-server.cabal

@@ -1,7 +1,7 @@
 name: gf-server
 version: 1.0
 cabal-version: >= 1.2
-build-type: Simple
+build-type: Custom
 license: GPL
 license-file: LICENSE
 synopsis: FastCGI Server for Grammatical Framework