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{ lib, stdenv, fetchFromGitHub, fetchpatch }:
stdenv.mkDerivation rec {
version = "0.6.8";
pname = "nix-bash-completions";
src = fetchFromGitHub {
owner = "hedning";
repo = "nix-bash-completions";
rev = "v${version}";
sha256 = "1n5zs6xcnv4bv1hdaypmz7fv4j7dsr4a0ifah99iyj4p5j85i1bc";
};
patches = [
# Fix improper escaping: https://github.com/NixOS/nixpkgs/issues/284162
(fetchpatch {
url = "https://github.com/hedning/nix-bash-completions/pull/28/commits/ef2055aa28754fa9e009bbfebc1491972e4f4e67.patch";
hash = "sha256-TRkHrk7bX7DX0COzzYR+1pgTqLy7J55BcejNjRwthII=";
})
];
postPatch = ''
# Nix 2.4+ provides its own completion for the nix command, see https://github.com/hedning/nix-bash-completions/issues/20
# NixOS provides its own completions for nixos-rebuild now.
substituteInPlace _nix \
--replace 'nix nixos-option' 'nixos-option' \
--replace 'nixos-rebuild nixos-install' 'nixos-install'
'';
strictDeps = true;
# To enable lazy loading via bash-completion we need a symlink to the script
# from every command name.
installPhase = ''
runHook preInstall
commands=$(
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;
};
}
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