1 files changed, 12 insertions, 2 deletions
diff --git a/importpkg.py b/importpkg.py
index aeccda5..f3868ff 100755
--- a/importpkg.py
+++ b/importpkg.py
@@ -58,14 +58,24 @@ def process_package(filelike, hash_functions):
                 raise ValueError("unexpected control.tar.gz")
             state = "control"
             tf = tarfile.open(fileobj=af, mode="r|gz")
+            meta = None
+            use_dpkg_divert = False
             for elem in tf:
+                if elem.name == "./preinst":
+                    if "dpkg-divert" in tf.extractfile(elem).read():
+                        use_dpkg_divert = True
+                    continue
                 if elem.name != "./control":
                     continue
                 if state != "control":
                     raise ValueError("duplicate control file")
                 state = "control_file"
-                yield process_control(tf.extractfile(elem).read())
-                break
+                meta = process_control(tf.extractfile(elem).read())
+            if meta is None:
+                raise ValueError("control file not found")
+            if use_dpkg_divert:
+                meta["conflicts"].add("_dpkg-divert")
+            yield meta
             continue
         elif name == "data.tar.gz":
             tf = tarfile.open(fileobj=af, mode="r|gz")