temp: add hnix-store-temporary-live-test

hnix-store-remote/app/Main.hs

@@ -0,0 +1,67 @@
+{-# LANGUAGE OverloadedStrings   #-}
+import qualified Data.ByteString.Lazy as LBS
+import qualified Data.HashSet as HS
+import qualified System.Nix.GC as GC
+import System.Nix.Store.Remote
+import System.Nix.Store.Remote.Util
+import Data.Maybe
+import Control.Monad.Reader
+
+import Text.Pretty.Simple
+
+noSuchPath = fromJust $ mkPath "blah"
+
+main = do
+  x <- runStore $ do
+    syncWithGC
+
+    verifyStore False False
+
+    (Just path) <- addTextToStore "hnix-store" "test" (HS.fromList [])  False
+
+    valid <- isValidPathUncached path
+    case valid of
+      True -> do
+        info <- queryPathInfoUncached path
+        return (path, info)
+      _ -> error "shouldn't happen"
+
+  pPrint x
+  case x of
+    (Left err, log) -> putStrLn err >> print log
+    (Right (path, pathinfo), log) -> do
+      gcres <- runStore $ do
+        collectGarbage $ GC.Options
+          { GC.operation = GC.DeleteSpecific
+          , GC.pathsToDelete = HS.fromList [path]
+          , GC.ignoreLiveness = False
+          -- XXX: this breaks stuff - we don't get Last,
+          -- only a message with limit reached, stopping..
+          --
+          -- gcDeleteSpecific and options.maxFreed
+          -- are two distinct branches in
+          -- nix/src/libstore.gc
+          -- so maybe this combination is not supported
+          --, GC.maxFreed = 1000
+          , GC.maxFreed = -1
+          }
+
+      pPrint gcres
+
+  -- test ExceptT
+  e <- runStore $ do
+    isValidPathUncached $ noSuchPath
+
+  pPrint e
+
+  {-
+  e <- runStore $ do
+    queryPathInfoUncached $ noSuchPath
+
+  pPrint e
+  -}
+
+    --res <- queryDerivationOutputs drvP
+    --liftIO $ print res
+    --res <- findRoots
+    --liftIO $ pPrint res

hnix-store-remote/hnix-store-remote.cabal

@@ -39,3 +39,14 @@ library
   hs-source-dirs:      src
   default-language:    Haskell2010
   ghc-options:         -Wall
+
+executable hnix-store-temporary-live-test
+  main-is:             Main.hs
+  hs-source-dirs:      app
+  build-depends:       base
+                     , mtl
+                     , bytestring
+                     , hnix-store-core
+                     , hnix-store-remote
+                     , unordered-containers
+                     , pretty-simple