Add pre and post build hooks

Run a program (named "preBuildHook") before doing a package build and another program (named "postBuildHook") after the package is built. These two programs simply need to be on the users $PATH variable and are completely generic. Co-authored: Moritz Angermann <[email protected]>
erikd · Apr 17, 2024 · 56349de · 56349de
1 parent 50a5cb6
commit 56349de
Showing 1 changed file with 25 additions and 1 deletion.
diff --git a/cabal-install/src/Distribution/Client/ProjectBuilding/UnpackedPackage.hs b/cabal-install/src/Distribution/Client/ProjectBuilding/UnpackedPackage.hs
@@ -678,7 +678,31 @@ buildAndInstallUnpackedPackage
           runConfigure
         PBBuildPhase{runBuild} -> do
           noticeProgress ProgressBuilding
-          runBuild
+          -- run preBuildHook. If it returns with 0, we assume the build was
+          -- successful. If not, run the build.
+          code <-
+            rawSystemExitCode
+              verbosity
+              (Just srcdir)
+              "preBuildHook"
+              [ (unUnitId $ installedUnitId rpkg)
+              , (getSymbolicPath srcdir)
+              , (getSymbolicPath builddir)
+              ]
+              `catchIO` (\_ -> return (ExitFailure 10))
+          when (code /= ExitSuccess) $ do
+            runBuild
+          -- not sure, if we want to care about a failed postBuildHook?
+          void $
+            rawSystemExitCode
+              verbosity
+              (Just srcdir)
+              "postBuildHook"
+              [ (unUnitId $ installedUnitId rpkg)
+              , (getSymbolicPath srcdir)
+              , (getSymbolicPath builddir)
+              ]
+              `catchIO` (\_ -> return (ExitFailure 10))
         PBHaddockPhase{runHaddock} -> do
           noticeProgress ProgressHaddock
           runHaddock