Fix recompilation of SetupHooks file

cabal-install/src/Distribution/Client/ProjectBuilding/UnpackedPackage.hs

@@ -540,7 +540,7 @@ buildInplaceUnpackedPackage
                   if null xs then m' else return xs
             monitors <- case PD.buildType (elabPkgDescription pkg) of
               Simple -> listSimple
-              Hooks -> listSimple
+              Hooks -> listSdist `ifNullThen` listSimple
               -- If a Custom setup was used, AND the Cabal is recent
               -- enough to have sdist --list-sources, use that to
               -- determine the files that we need to track.  This can

cabal-install/src/Distribution/Client/SourceFiles.hs

@@ -81,7 +81,10 @@ needComponent pkg_descr comp =
     CBench bench -> needBenchmark pkg_descr bench
 
 needSetup :: Rebuild ()
-needSetup = findFirstFileMonitored id ["Setup.hs", "Setup.lhs"] >> return ()
+needSetup = do
+  findFirstFileMonitored id ["Setup.hs", "Setup.lhs"]
+  findFirstFileMonitored id ["SetupHooks.hs", "SetupHooks.lhs"]
+  return ()
 
 needLibrary :: PackageDescription -> Library -> Rebuild ()
 needLibrary

cabal-testsuite/PackageTests/SetupHooks/SetupHooksRecompilation/SetupHooks.hs

@@ -0,0 +1,6 @@
+module SetupHooks where
+
+import Distribution.Simple.SetupHooks
+
+setupHooks = noSetupHooks
+

cabal-testsuite/PackageTests/SetupHooks/SetupHooksRecompilation/SetupHooksRecompilation.cabal

@@ -0,0 +1,17 @@
+cabal-version:   3.14
+name:            SetupHooksRecompilation
+version:         0.1.0.0
+license:         NONE
+author:          Rodrigo Mesquita
+maintainer:      [email protected]
+build-type:      Hooks
+extra-doc-files: CHANGELOG.md
+
+custom-setup
+    setup-depends: base, Cabal, Cabal-syntax, Cabal-hooks, hooks-exe
+
+library
+    exposed-modules:  MyLib
+    build-depends:    base ^>=4.19.1.0
+    hs-source-dirs:   src
+    default-language: Haskell2010

cabal-testsuite/PackageTests/SetupHooks/SetupHooksRecompilation/cabal.project

@@ -0,0 +1,13 @@
+packages:
+    .
+    ~/ghc-dev/cabal-help-sam/Cabal-hooks/
+    ~/ghc-dev/cabal-help-sam/Cabal-syntax/
+    ~/ghc-dev/cabal-help-sam/Cabal/
+    ~/ghc-dev/cabal-help-sam/hooks-exe/
+
+source-repository-package
+  type: git
+  location: https://github.com/sheaf/process
+  tag: 161bd84f8cc9367011465eb0ec420e74e01e9d74
+  post-checkout-command: autoreconf -i
+

cabal-testsuite/PackageTests/SetupHooks/SetupHooksRecompilation/cabal.test.hs

@@ -0,0 +1,9 @@
+import Test.Cabal.Prelude
+
+main = cabalTest $ do
+  recordMode DoNotRecord $ do
+    cabal "build" []
+    liftIO $ appendFile "SetupHooks.hs" "definitely-wrong!"
+    -- If this doesn't fail, it's because we didn't re-build.
+    fails $ cabal "build" []
+

cabal-testsuite/PackageTests/SetupHooks/SetupHooksRecompilation/src/MyLib.hs

@@ -0,0 +1,4 @@
+module MyLib (someFunc) where
+
+someFunc :: IO ()
+someFunc = putStrLn "someFunc"