Get the checksum after repackaging

lib/SlackBuilder/Download.hs

@@ -9,6 +9,8 @@ module SlackBuilder.Download
     , download
     , hostedSources
     , remoteFileExists
+    , responseBodySource
+    , sinkHash
     , updateSlackBuildVersion
     , uploadCommand
     ) where

slackbuilder.cabal

@@ -19,6 +19,8 @@ common dependencies
   build-depends:
     base >= 4.16 && < 5,
     bytestring ^>= 0.11.0,
+    conduit ^>= 1.3.5,
+    http-client ^>= 0.7,
     containers ^>= 0.6,
     cryptonite >= 0.30,
     directory ^>= 1.3.8,
@@ -30,6 +32,8 @@ common dependencies
     parser-combinators ^>= 1.3,
     process ^>= 1.6.18,
     req ^>= 3.13,
+    tar-conduit ^>= 0.4,
+    lzma-conduit ^>= 1.2,
     text ^>= 2.0,
     tomland ^>= 1.3.3,
     transformers ^>= 0.5.6,
@@ -57,10 +61,6 @@ library
     SlackBuilder.Package
     SlackBuilder.Trans
   hs-source-dirs: lib
-  build-depends:
-    conduit ^>= 1.3.5,
-    http-client ^>= 0.7
-
   ghc-options: -Wall
 
 executable slackbuilder

src/Main.hs

@@ -6,6 +6,7 @@ module Main
     ( main
     ) where
 
+import qualified Data.ByteString.Char8 as Char8
 import Data.Char (isNumber)
 import Control.Applicative (Applicative(liftA2))
 import Data.List.NonEmpty (NonEmpty(..))
@@ -30,7 +31,7 @@ import SlackBuilder.Package (Package(..))
 import qualified SlackBuilder.Package as Package
 import Text.URI (URI(..), mkURI)
 import Text.URI.QQ (uri)
-import Data.Foldable (Foldable(..), for_, find)
+import Data.Foldable (Foldable(..), for_, find, traverse_)
 import qualified Text.URI as URI
 import System.FilePath ((</>), (<.>), dropExtension, takeBaseName, makeRelative, splitFileName)
 import SlackBuilder.Info
@@ -51,9 +52,21 @@ import System.Console.ANSI
     , Color(..)
     , ConsoleLayer(..)
     )
-import System.Directory (listDirectory, doesDirectoryExist)
+import System.Directory (listDirectory, doesDirectoryExist, createDirectory)
 import Control.Monad (filterM)
 import Data.List (isPrefixOf, isSuffixOf, partition)
+import Network.HTTP.Client (Response, BodyReader)
+import Network.HTTP.Req
+    ( runReq
+    , defaultHttpConfig
+    , useHttpsURI
+    , GET(..)
+    , reqBr
+    , NoReqBody(..)
+    )
+import Conduit (runConduitRes, (.|), sinkFile, sourceFile)
+import Data.Conduit.Tar (untar, FileInfo(..))
+import qualified Data.Conduit.Lzma as Lzma
 
 autoUpdatable :: [Package]
 autoUpdatable =
@@ -390,12 +403,16 @@ downloadWithTemplate downloadTemplate packagePath version = do
 
 reuploadWithTemplate :: Package.DownloadTemplate -> [CmdSpec] -> Text -> Text -> SlackBuilderT Package.Download
 reuploadWithTemplate downloadTemplate commands packagePath version = do
-    Package.Download{ download = uri', md5sum = checksum } <-
-        downloadWithTemplate downloadTemplate packagePath version
+    repository' <- SlackBuilderT $ asks repository
+    uri' <- liftIO $ Package.renderDownloadWithVersion downloadTemplate version
     let downloadFileName = URI.unRText
             $ NonEmpty.last $ snd $ fromJust $ URI.uriPath uri'
         relativeTarball = packagePath <> "/" <> downloadFileName
+        tarball = repository' </> Text.unpack relativeTarball
+
+    extractRemote uri'
     download' <- handleReupload (Text.unpack relativeTarball) downloadFileName
+    checksum <- liftIO $ runConduitRes $ sourceFile tarball .| sinkHash
 
     pure $ Package.Download download' checksum
   where
@@ -407,8 +424,7 @@ reuploadWithTemplate downloadTemplate commands packagePath version = do
             _ ->
                 let tarballPath = repository' </> relativeTarball
                     packedDirectory = takeBaseName $ dropExtension tarballPath
-                 in liftIO (callProcess "tar" ["xvf", tarballPath])
-                >> liftIO (traverse (defaultCreateProcess packedDirectory) commands)
+                 in liftIO (traverse (defaultCreateProcess packedDirectory) commands)
                 >> liftIO (callProcess "tar" ["Jcvf", tarballPath, packedDirectory])
                 >> uploadTarball relativeTarball downloadFileName
     uploadTarball relativeTarball downloadFileName
@@ -434,6 +450,19 @@ reuploadWithTemplate downloadTemplate commands packagePath version = do
             , child_user = Nothing
             , child_group = Nothing
             }
+    extractRemote :: URI -> SlackBuilderT ()
+    extractRemote uri' = traverse_ (runReq defaultHttpConfig . go . fst)
+        $ useHttpsURI uri'
+    go uri' = reqBr GET uri' NoReqBody mempty readResponse
+    readResponse :: Response BodyReader -> IO ()
+    readResponse response = runConduitRes
+        $ responseBodySource response
+        .| Lzma.decompress Nothing
+        .| untar withDecompressedFile
+    withDecompressedFile FileInfo{..}
+        | Char8.last filePath /= '/' =
+            sinkFile (Char8.unpack filePath)
+        | otherwise = liftIO (createDirectory (Char8.unpack filePath))
 
 updatePackage :: Package -> Text -> PackageInfo -> SlackBuilderT ()
 updatePackage Package{..} version info = do