dnf: when runnning with --network=never, use package metadata cache

This implements the ability to rebuild packages from cache that was requested
in #700. I don't think it can be said to resolve the issue, since this is
only a partial solution, but useful nonetheless.

diff --git a/mkosi/__init__.py b/mkosi/__init__.py
index 93908da012c517451e0cdd5e8f9d90cebadcacc0..89cb5393b28d9d915b5efbde0447933b2238d965 100644 (file)
--- a/mkosi/__init__.py
+++ b/mkosi/__init__.py
@@ -1789,6 +1789,9 @@ def invoke_dnf(
         "--setopt=install_weak_deps=0",
     ]
 
+    if args.with_network == "never":
+        cmdline += ["-C"]
+
     if args.architecture is not None:
         cmdline += [f"--forcearch={args.architecture}"]