1 files changed, 27 insertions, 0 deletions
diff --git a/third_party/nix/src/libmain/common-args.hh b/third_party/nix/src/libmain/common-args.hh
new file mode 100644
index 000000000000..d8917b836778
--- /dev/null
+++ b/third_party/nix/src/libmain/common-args.hh
@@ -0,0 +1,27 @@
+#pragma once
+
+#include "args.hh"
+
+namespace nix {
+
+struct MixCommonArgs : virtual Args {
+  string programName;
+  MixCommonArgs(const string& programName);
+};
+
+struct MixDryRun : virtual Args {
+  bool dryRun = false;
+
+  MixDryRun() {
+    mkFlag(0, "dry-run", "show what this command would do without doing it",
+           &dryRun);
+  }
+};
+
+struct MixJSON : virtual Args {
+  bool json = false;
+
+  MixJSON() { mkFlag(0, "json", "produce JSON output", &json); }
+};
+
+}  // namespace nix