nix-bash-completions: init at 0.1

Bash completion for almost all nix* commands, including nix-1.12.

pkgs/shells/nix-bash-completions/default.nix

@@ -0,0 +1,26 @@
+{ stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  version = "0.1";
+  name = "nix-bash-completions-${version}";
+
+  src = fetchFromGitHub {
+    owner = "hedning";
+    repo = "nix-bash-completions";
+    rev = "v${version}";
+    sha256 = "1gb6fmnask1xmjv5j5x0jb505lyp0p4lx2kbibfnb2gi57wapxaz";
+  };
+
+  installPhase = ''
+    mkdir -p $out/share/bash-completion/completions
+    cp _* $out/share/bash-completion/completions
+  '';
+
+  meta = {
+    homepage = http://github.com/hedning/nix-bash-completions;
+    description = "Bash completions for Nix, NixOS, and NixOps";
+    license = stdenv.lib.licenses.bsd3;
+    platforms = stdenv.lib.platforms.all;
+    maintainers = with stdenv.lib.maintainers; [ hedning ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -5315,6 +5315,8 @@ with pkgs;
 
   bash-completion = callPackage ../shells/bash-completion { };
 
+  nix-bash-completions = callPackage ../shells/nix-bash-completions { };
+
   dash = callPackage ../shells/dash { };
 
   es = callPackage ../shells/es { };