1 files changed, 36 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/shells/bash/nix-bash-completions/default.nix b/nixpkgs/pkgs/shells/bash/nix-bash-completions/default.nix
new file mode 100644
index 00000000000..affbd219958
--- /dev/null
+++ b/nixpkgs/pkgs/shells/bash/nix-bash-completions/default.nix
@@ -0,0 +1,36 @@
+{ stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  version = "0.6.7";
+  pname = "nix-bash-completions";
+
+  src = fetchFromGitHub {
+    owner = "hedning";
+    repo = "nix-bash-completions";
+    rev = "v${version}";
+    sha256 = "067j1gavpm9zv3vzw9gq0bi3bi0rjrijwprc1j016g44kvpq49qi";
+  };
+
+  # To enable lazy loading via. bash-completion we need a symlink to the script
+  # from every command name.
+  installPhase = ''
+    commands=$(
+      function complete() { shift 2; echo "$@"; }
+      shopt -s extglob
+      source _nix
+    )
+    install -Dm444 -t $out/share/bash-completion/completions _nix
+    cd $out/share/bash-completion/completions
+    for c in $commands; do
+      ln -s _nix $c
+    done
+  '';
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/hedning/nix-bash-completions;
+    description = "Bash completions for Nix, NixOS, and NixOps";
+    license = licenses.bsd3;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ hedning ];
+  };
+}