aboutsummaryrefslogtreecommitdiff
path: root/haddock-api/src/Haddock/Backends
diff options
context:
space:
mode:
Diffstat (limited to 'haddock-api/src/Haddock/Backends')
-rw-r--r--haddock-api/src/Haddock/Backends/Meta.hs22
1 files changed, 22 insertions, 0 deletions
diff --git a/haddock-api/src/Haddock/Backends/Meta.hs b/haddock-api/src/Haddock/Backends/Meta.hs
new file mode 100644
index 00000000..c62c1ae8
--- /dev/null
+++ b/haddock-api/src/Haddock/Backends/Meta.hs
@@ -0,0 +1,22 @@
+module Haddock.Backends.Meta where
+
+import Haddock.Utils.Json
+import Haddock.Version
+
+import Data.ByteString.Builder (hPutBuilder)
+import System.FilePath ((</>))
+import System.IO (withFile, IOMode (WriteMode))
+
+-- | Writes a json encoded file containing additional
+-- information about the generated documentation. This
+-- is useful for external tools (e.g. hackage).
+writeHaddockMeta :: FilePath -> IO ()
+writeHaddockMeta odir = do
+ let
+ meta_json :: Value
+ meta_json = object [
+ "haddock_version" .= String projectVersion
+ ]
+
+ withFile (odir </> "meta.json") WriteMode $ \h ->
+ hPutBuilder h (encodeToBuilder meta_json) \ No newline at end of file