Merge pull request #8201 from haskell/mergify/bp/3.8/pr-8194

bootstrap: generate missing Setup.hs in dependencies (backport #8194)
haskell · Jun 8, 2022 · 323f916 · 323f916
2 parents 71fc82c + 4f0839f
commit 323f916
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/bootstrap/bootstrap.py b/bootstrap/bootstrap.py
@@ -184,6 +184,12 @@ def install_dep(dep: BootstrapDep, ghc: Compiler) -> None:
         if dep.revision is not None:
             shutil.copyfile(cabal_file, sdist_dir / f'{dep.package}.cabal')
 
+        # We rely on the presence of Setup.hs
+        if len(list(sdist_dir.glob('Setup.*hs'))) == 0:
+            with open(sdist_dir / 'Setup.hs', 'w') as f:
+                f.write('import Distribution.Simple\n')
+                f.write('main = defaultMain\n')
+
     elif dep.source == PackageSource.LOCAL:
         if dep.package == 'Cabal':
             sdist_dir = Path('Cabal').resolve()