nixpkgs/pkgs/shells/nix-bash-completions/default.nix
Tor Hedin Brønner f79d69113e nix-bash-completions: lazy load aware install
`bash-completion` lazy loads completion scripts by looking up the command name
in the completion directory. As such we need to create a symlink for every
nix command.

The problem had been masked by nixos sourcing all completion scripts on startup.
2017-12-10 14:07:13 +00:00

37 lines
995 B
Nix

{ stdenv, fetchFromGitHub }:
stdenv.mkDerivation rec {
version = "0.6.1";
name = "nix-bash-completions-${version}";
src = fetchFromGitHub {
owner = "hedning";
repo = "nix-bash-completions";
rev = "v${version}";
sha256 = "10nzdn249f0cw6adgpbpg4x90ysvxm7vs9jjbbwynfh9kngijp64";
};
# 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 = http://github.com/hedning/nix-bash-completions;
description = "Bash completions for Nix, NixOS, and NixOps";
license = licenses.bsd3;
platforms = platforms.all;
maintainers = with maintainers; [ hedning ];
};
}