Begin supporting run

I'd like to be able to just call `run file.py` and have a program DWIM. I'm
working on run as a step in this direction. Define a simple configuration that
maps file extensions to template strings where "$file" is replaced with the
argv[1].

It basically works but there are outstanding TODOs. See the README and source
code for more information.

1 files changed, 16 insertions, 0 deletions

diff --git a/run/default.nix b/run/default.nix
new file mode 100644
index 000000000000..113491536ee5
--- /dev/null
+++ b/run/default.nix
@@ -0,0 +1,16 @@
+{
+  pkgs ? import <nixpkgs> {},
+  depot ? import <depot> {},
+  briefcase ? import <briefcase> {},
+  ...
+}:
+
+depot.buildGo.program {
+  name = "run";
+  srcs = [
+    ./main.go
+  ];
+  deps = with briefcase.gopkgs; [
+    utils
+  ];
+}