nixpkgs/pkgs/tools/filesystems/bees/default.nix

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{ stdenv, runCommand, makeWrapper, fetchFromGitHub, bash, btrfs-progs, coreutils, pythonPackages, utillinux }:
let
version = "0.6.1";
sha256 = "0h7idclmhyp14mq6786x7f2237vqpn70gyi88ik4g70xl84yfgyh";
bees = stdenv.mkDerivation rec {
name = "bees-${version}";
inherit version;
src = fetchFromGitHub {
owner = "Zygo";
repo = "bees";
rev = "v${version}";
inherit sha256;
};
buildInputs = [
btrfs-progs # for btrfs/ioctl.h
utillinux # for uuid.h
];
nativeBuildInputs = [
pythonPackages.markdown # documentation build
];
preBuild = ''
git() { if [[ $1 = describe ]]; then echo ${version}; else command git "$@"; fi; }
export -f git
'';
postBuild = ''
unset -f git
'';
buildFlags = [
"ETC_PREFIX=/var/run/bees/configs"
];
makeFlags = [
"SHELL=bash"
"PREFIX=$(out)"
"ETC_PREFIX=$(out)/etc"
"BEES_VERSION=${version}"
"SYSTEMD_SYSTEM_UNIT_DIR=$(out)/etc/systemd/system"
];
meta = with stdenv.lib; {
homepage = "https://github.com/Zygo/bees";
description = "Block-oriented BTRFS deduplication service";
license = licenses.gpl3;
platforms = platforms.linux;
maintainers = with maintainers; [ chaduffy ];
longDescription = "Best-Effort Extent-Same: bees finds not just identical files, but also identical extents within files that differ";
};
};
in
runCommand "bees-service-${version}" {
inherit bash bees coreutils utillinux;
btrfsProgs = btrfs-progs; # needs to be a valid shell variable name
} ''
mkdir -p -- "$out/bin"
substituteAll ${./bees-service-wrapper} "$out"/bin/bees-service-wrapper
chmod +x "$out"/bin/bees-service-wrapper
ln -s ${bees}/bin/beesd "$out"/bin/beesd
''