1 files changed, 46 insertions, 0 deletions
diff --git a/protocols/codegen/Wayland/CodeGen/BuildGen.hs b/protocols/codegen/Wayland/CodeGen/BuildGen.hs
new file mode 100644
index 0000000..42d4b1d
--- /dev/null
+++ b/protocols/codegen/Wayland/CodeGen/BuildGen.hs
@@ -0,0 +1,46 @@
+module Wayland.CodeGen.BuildGen
+  ( generateBuild
+  ) where
+
+import Wayland.CodeGen.Types
+import Wayland.CodeGen.Utils
+
+data ModuleInfo
+  = ModuleInfo { modProtocol  :: !Protocol
+               , modInterface :: !InterfaceDesc
+               }
+
+generateBuild :: [Protocol] -> String
+generateBuild protocols = unlines ([ "cabal-version:      3.0"
+                                   , "name:               highway-protocols"
+                                   , "version:            1.0.0"
+                                   , "synopsis:           Generated bindings for some Wayland protocols."
+                                   , "build-type:         Simple"
+                                   , ""
+                                   , "common warnings"
+                                   , "    ghc-options: -Wall -Wno-unused-imports -Wno-dodgy-exports"
+                                   , ""
+                                   , "library"
+                                   , "    import:           warnings"
+                                   , "    build-depends:    base,"
+                                   , "                      hashable,"
+                                   , "                      bytestring,"
+                                   , "                      highway-wayland"
+                                   , "    default-language: Haskell2010" ]
+                                   ++ exposedModules (collectModules protocols))
+  where exposedModules  []     = []
+        exposedModules  [m]    = ["    exposed-modules:  " ++ formatModule m]
+        exposedModules  (m:ms) = ("    exposed-modules:  " ++ formatModule m ++ ",") : exposedModules' ms
+        exposedModules' [m]    = ["                      " ++ formatModule m]
+        exposedModules' (m:ms) = ("                      " ++ formatModule m ++ ",") : exposedModules' ms
+        exposedModules' []     = []
+
+formatModule :: ModuleInfo -> String
+formatModule m = fullModule (modProtocol m) (modInterface m)
+
+collectModules :: [Protocol] -> [ModuleInfo]
+collectModules = concatMap singleProtocol
+  where singleProtocol  p   = fmap (singleInterface p) (protInterfaces p)
+        singleInterface p i = ModuleInfo { modProtocol  = p
+                                         , modInterface = i
+                                         }