From 254eebd8a0782430dfb0b78bef3b657ad0caed8a Mon Sep 17 00:00:00 2001
From: Nathan Zadoks <nathan@nathan7.eu>
Date: Sun, 27 Dec 2015 16:36:17 +0100
Subject: command-not-found: add NIX_AUTO_RUN

---
 nixos/modules/programs/command-not-found/command-not-found.nix | 2 +-
 nixos/modules/programs/command-not-found/command-not-found.pl  | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/programs/command-not-found/command-not-found.nix b/nixos/modules/programs/command-not-found/command-not-found.nix
index 9524d91ea3b..9d3f61f5ff9 100644
--- a/nixos/modules/programs/command-not-found/command-not-found.nix
+++ b/nixos/modules/programs/command-not-found/command-not-found.nix
@@ -16,7 +16,7 @@ let
     isExecutable = true;
     inherit (pkgs) perl;
     perlFlags = concatStrings (map (path: "-I ${path}/lib/perl5/site_perl ")
-      [ pkgs.perlPackages.DBI pkgs.perlPackages.DBDSQLite ]);
+      [ pkgs.perlPackages.DBI pkgs.perlPackages.DBDSQLite pkgs.perlPackages.StringShellQuote ]);
   };
 
 in
diff --git a/nixos/modules/programs/command-not-found/command-not-found.pl b/nixos/modules/programs/command-not-found/command-not-found.pl
index b233d973a4a..5bdda26592e 100644
--- a/nixos/modules/programs/command-not-found/command-not-found.pl
+++ b/nixos/modules/programs/command-not-found/command-not-found.pl
@@ -3,6 +3,7 @@
 use strict;
 use DBI;
 use DBD::SQLite;
+use String::ShellQuote;
 use Config;
 
 my $program = $ARGV[0];
@@ -31,6 +32,8 @@ the package ‘$package’, which I will now install for you.
 EOF
         ;
         exit 126 if system("nix-env", "-iA", "nixos.$package") == 0;
+    } elsif ($ENV{"NIX_AUTO_RUN"} // "") {
+        exec("nix-shell", "-p", $package, "--run", shell_quote("exec", @ARGV));
     } else {
         print STDERR <<EOF;
 The program ‘$program’ is currently not installed. You can install it by typing:
-- 
cgit 1.4.1