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-rw-r--r--third_party/nix/src/libmain/common-args.hh33
1 files changed, 33 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..a4de3dccf0a5
--- /dev/null
+++ b/third_party/nix/src/libmain/common-args.hh
@@ -0,0 +1,33 @@
+#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);
+    }
+};
+
+}