`nix show-derivation` -> `nix derivation show`

1 files changed, 25 insertions, 0 deletions

diff --git a/src/nix/derivation.cc b/src/nix/derivation.cc
new file mode 100644
index 000000000..cd3975a4f
--- /dev/null
+++ b/src/nix/derivation.cc
@@ -0,0 +1,25 @@
+#include "command.hh"
+
+using namespace nix;
+
+struct CmdDerivation : virtual NixMultiCommand
+{
+    CmdDerivation() : MultiCommand(RegisterCommand::getCommandsFor({"derivation"}))
+    { }
+
+    std::string description() override
+    {
+        return "Work with derivations, Nix's notion of a build plan.";
+    }
+
+    Category category() override { return catUtility; }
+
+    void run() override
+    {
+        if (!command)
+            throw UsageError("'nix derivation' requires a sub-command.");
+        command->second->run();
+    }
+};
+
+static auto rCmdDerivation = registerCommand<CmdDerivation>("derivation");