Fix HIE build ~ish

- Fixes relative paths (see
  haskell/haskell-ide-engine#161) so they are
  relative to the cabal file parent directory.
- Adds an hie.yaml to fix a bunch of broken files HIE can't get flags
  for.

Author: lf-

Carnap-Server/Carnap-Server.cabal

@@ -97,6 +97,7 @@ library
                  , persistent-sqlite
                  , persistent-template           >= 2.5        && < 2.9
                  , template-haskell
+                 , th-utilities
                  , shakespeare                   >= 2.0        && < 2.1
                  , monad-control                 >= 0.3        && < 1.1
                  , wai-extra                     >= 3.0        && < 3.1

Carnap-Server/Carnap-Server.nix

@@ -7,8 +7,8 @@
 , monad-logger, mtl, pandoc, pandoc-types, persistent
 , persistent-postgresql, persistent-sqlite, persistent-template
 , random, resourcet, safe, shakespeare, split, stdenv, svg-builder
-, template-haskell, text, time, transformers, tz, tzdata
-, unordered-containers, vector, wai, wai-cors, wai-extra
+, template-haskell, text, th-utilities, time, transformers, tz
+, tzdata, unordered-containers, vector, wai, wai-cors, wai-extra
 , wai-logger, warp, yaml, yesod, yesod-auth, yesod-auth-oauth2
 , yesod-core, yesod-form, yesod-markdown, yesod-static, yesod-test
 }:
@@ -26,10 +26,10 @@ mkDerivation {
     file-embed filepath hashable http-conduit lens linear lucid
     monad-control monad-logger mtl pandoc pandoc-types persistent
     persistent-postgresql persistent-sqlite persistent-template random
-    safe shakespeare split svg-builder template-haskell text time
-    transformers tz tzdata unordered-containers vector wai wai-cors
-    wai-extra wai-logger warp yaml yesod yesod-auth yesod-auth-oauth2
-    yesod-core yesod-form yesod-markdown yesod-static
+    safe shakespeare split svg-builder template-haskell text
+    th-utilities time transformers tz tzdata unordered-containers
+    vector wai wai-cors wai-extra wai-logger warp yaml yesod yesod-auth
+    yesod-auth-oauth2 yesod-core yesod-form yesod-markdown yesod-static
   ];
   executableHaskellDepends = [ base ];
   testHaskellDepends = [

Carnap-Server/Settings.hs

@@ -13,8 +13,9 @@ import Data.FileEmbed              (embedFile)
 import Data.Yaml                   (decodeEither')
 import Database.Persist.Postgresql (PostgresConf)
 import Language.Haskell.TH.Syntax  (Exp, Name, Q)
+import TH.RelativePaths            (pathRelativeToCabalPackage)
 import Network.Wai.Handler.Warp    (HostPreference)
-import Yesod.Default.Config2       (applyEnvValue, configSettingsYml)
+import Yesod.Default.Config2       (applyEnvValue)
 import Yesod.Default.Util          (WidgetFileSettings, widgetFileNoReload,
                                     widgetFileReload)
 
@@ -122,7 +123,7 @@ widgetFile = (if appReloadTemplates compileTimeAppSettings
 
 -- | Raw bytes at compile time of @config/settings.yml@
 configSettingsYmlBS :: ByteString
-configSettingsYmlBS = $(embedFile configSettingsYml)
+configSettingsYmlBS = $(embedFile =<< pathRelativeToCabalPackage "config/settings.yml")
 
 -- | @config/settings.yml@, parsed to a @Value@.
 configSettingsYmlValue :: Value

Carnap-Server/Settings/StaticFiles.hs

@@ -1,7 +1,9 @@
 module Settings.StaticFiles where
 
-import Settings     (appStaticDir, compileTimeAppSettings)
-import Yesod.Static (staticFiles)
+import Prelude
+import Settings         (appStaticDir, compileTimeAppSettings)
+import TH.RelativePaths (pathRelativeToCabalPackage)
+import Yesod.Static     (staticFiles)
 
 -- This generates easy references to files in the static directory at compile time,
 -- giving you compile-time verification that referenced files exist.
@@ -15,7 +17,8 @@ import Yesod.Static (staticFiles)
 -- If the identifier is not available, you may use:
 --
 --     StaticFile ["js", "script.js"] []
-staticFiles (appStaticDir compileTimeAppSettings)
+pathRelativeToCabalPackage (appStaticDir compileTimeAppSettings)
+  >>= staticFiles
 
 -- XXX:for whatever reason, recompiling with the below seems to get it to reload
 -- the static file cache. You an then switch back to compileTimeAppSettings

hie.yaml

@@ -0,0 +1,45 @@
+cradle:
+  multi:
+    # broken, some c preprocessor error
+    - path: "./Carnap-Server/test"
+      config:
+        cradle:
+          none:
+    # broken, "failed to parse result of calling cabal"
+    - path: "./Carnap/test"
+      config:
+        cradle:
+          none:
+    - path: "./Carnap/Setup.hs"
+      config:
+        cradle:
+          none:
+    # these two are not intended to be used with ghc anyway, they are for ghci
+    - path: "./Carnap-Server/app/DevelMain.hs"
+      config:
+        cradle:
+          none:
+    - path: "./Carnap-Server/app/devel.hs"
+      config:
+        cradle:
+          none:
+    # not ignored by default
+    - path: "./dist-ghcjs"
+      config:
+        cradle:
+          none:
+    # broken for now, I think it is unlikely this will work until we fix
+    # Carnap-GHCJS dependencies preventing it building on ghc
+    - path: "./Carnap-GHCJS"
+      config:
+        cradle:
+          none:
+    - path: "./Carnap-Server/app/main.hs"
+      config:
+        cradle:
+          cabal:
+            component: "exe:Carnap-Server"
+    - path: "./"
+      config:
+        cradle:
+          cabal: