Add QuickJump version to meta.json (#696)

1 files changed, 8 insertions, 2 deletions

diff --git a/haddock-api/src/Haddock/Backends/Meta.hs b/haddock-api/src/Haddock/Backends/Xhtml/Meta.hs
index c62c1ae8..5cf03ec4 100644
--- a/haddock-api/src/Haddock/Backends/Meta.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Meta.hs
@@ -1,4 +1,4 @@
-module Haddock.Backends.Meta where
+module Haddock.Backends.Xhtml.Meta where
 
 import Haddock.Utils.Json
 import Haddock.Version
@@ -7,6 +7,11 @@ import Data.ByteString.Builder (hPutBuilder)
 import System.FilePath ((</>))
 import System.IO (withFile, IOMode (WriteMode))
 
+-- | Everytime breaking changes to the Quckjump api
+-- happen this needs to be modified.
+quickjumpVersion :: Int
+quickjumpVersion = 1
+
 -- | Writes a json encoded file containing additional
 -- information about the generated documentation. This
 -- is useful for external tools (e.g. hackage).
@@ -15,7 +20,8 @@ writeHaddockMeta odir = do
   let
     meta_json :: Value
     meta_json = object [
-        "haddock_version" .= String projectVersion
+        "haddock_version"   .= String projectVersion
+      , "quickjump_version" .= quickjumpVersion
       ]
 
   withFile (odir </> "meta.json") WriteMode $ \h ->