nixpkgs/pkgs/shells/bash/nix-bash-completions/default.nix
Naïm Favier cd5d9f6206
nix-bash-completions: don't handle the nix command
See https://github.com/hedning/nix-bash-completions/issues/20.

Even with the low priority on this package, completing `nix-build` will
load the nix-bash-completion for the `nix` command, which is undesirable
since Nix provides its own completion since 2.4.

The maintainer seems unresponsive.
2022-12-22 13:14:11 +01:00

48 lines
1.3 KiB
Nix

{ lib, stdenv, fetchFromGitHub }:
stdenv.mkDerivation rec {
version = "0.6.8";
pname = "nix-bash-completions";
src = fetchFromGitHub {
owner = "hedning";
repo = "nix-bash-completions";
rev = "v${version}";
sha256 = "1n5zs6xcnv4bv1hdaypmz7fv4j7dsr4a0ifah99iyj4p5j85i1bc";
};
postPatch = ''
# Nix 2.4+ provides its own completion for the nix command, see https://github.com/hedning/nix-bash-completions/issues/20
substituteInPlace _nix --replace 'nix nixos-option' 'nixos-option'
'';
strictDeps = true;
# To enable lazy loading via bash-completion we need a symlink to the script
# from every command name.
installPhase = ''
runHook preInstall
commands=$(
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
runHook postInstall
'';
meta = with 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 ncfavier ];
# Set a lower priority such that Nix wins in case of conflicts.
priority = 10;
};
}