Merge pull request #164 from istathar/ensure-threaded

Ensure threaded runtime present

Author: istathar

core-program/core-program.cabal

@@ -5,7 +5,7 @@ cabal-version: 1.12
 -- see: https://github.com/sol/hpack
 
 name:           core-program
-version:        0.6.2.1
+version:        0.6.2.2
 synopsis:       Opinionated Haskell Interoperability
 description:    A library to help build command-line programs, both tools and
                 longer-running daemons.

core-program/lib/Core/Program/Execute.hs

@@ -140,6 +140,7 @@ import Control.Exception.Safe qualified as Safe
 import Control.Monad
     ( forM_
     , forever
+    , unless
     , void
     , when
     )
@@ -172,6 +173,8 @@ import System.Directory
     ( findExecutable
     )
 import System.Exit (ExitCode (..))
+import System.Posix.Internals (hostIsThreaded)
+import System.Posix.Process qualified as Posix (exitImmediately)
 import System.Process.Typed (nullStream, proc, readProcess, setStdin)
 import Prelude hiding (log)
 
@@ -230,8 +233,14 @@ executeWith = executeActual
 
 executeActual :: Context τ -> Program τ α -> IO ()
 executeActual context0 program = do
+    -- ensure threaded runtime is active
+    unless hostIsThreaded $ do
+        putStrLn "error: Application must be compiled with -threaded GHC option"
+        Posix.exitImmediately (ExitFailure 98)
+
     -- command line +RTS -Nn -RTS value
-    when (numCapabilities == 1) (getNumProcessors >>= setNumCapabilities)
+    when (numCapabilities == 1) $ do
+        getNumProcessors >>= setNumCapabilities
 
     -- force UTF-8 working around bad VMs
     setLocaleEncoding utf8

core-program/package.yaml

@@ -1,5 +1,5 @@
 name: core-program
-version: 0.6.2.1
+version: 0.6.2.2
 synopsis: Opinionated Haskell Interoperability
 description: |
   A library to help build command-line programs, both tools and

core-telemetry/core-telemetry.cabal

@@ -1,11 +1,11 @@
 cabal-version: 1.18
 
--- This file has been generated from package.yaml by hpack version 0.35.0.
+-- This file has been generated from package.yaml by hpack version 0.35.1.
 --
 -- see: https://github.com/sol/hpack
 
 name:           core-telemetry
-version:        0.2.7.0
+version:        0.2.7.2
 synopsis:       Advanced telemetry
 description:    This is part of a library to help build command-line programs, both tools and
                 longer-running daemons.
@@ -54,7 +54,7 @@ library
       base >=4.11 && <5
     , bytestring
     , core-data >=0.3.8.0
-    , core-program >=0.6.1
+    , core-program >=0.6.2.2
     , core-text >=0.3.7.1
     , exceptions
     , http-streams

core-telemetry/package.yaml

@@ -1,5 +1,5 @@
 name: core-telemetry
-version: 0.2.7.0
+version: 0.2.7.2
 synopsis: Advanced telemetry
 description: |
   This is part of a library to help build command-line programs, both tools and
@@ -34,7 +34,7 @@ library:
   dependencies:
    - core-text >= 0.3.7.1
    - core-data >= 0.3.8.0
-   - core-program >= 0.6.1
+   - core-program >= 0.6.2.2
    - exceptions
    - http-streams
    - io-streams