nixpkgs/pkgs/os-specific/linux/procps-ng/default.nix
Adam Joseph 42815b4a0c treewide: systemdSupport: use lib.meta.availableOn
Many packages have some kind of flag indicating whether or not to build with
systemd support.  Most of these default to `stdenv.isLinux`, but systemd does
not build on (and is marked `broken` for) `isStatic`.  Only a few packages have
the needed `&& !isStatic` in the default value for their parameter.

This commit moves the logic for the default value of these flags into
`systemd.meta.{platforms,badPlatforms}` and evaluates those conditions using
`lib.meta.availableOn`.

This provides three benefits:

1. The default values are set correctly (i.e. including `&& isStatic`)

2. The default values are set consistently

3. The way is paved for any future non-Linux systemd platforms (FreeBSD is
   reported to have experimental systemd support)
2023-01-22 00:27:19 -08:00

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{ lib
, stdenv
, fetchurl
, ncurses
, pkg-config
, fetchpatch
# `ps` with systemd support is able to properly report different
# attributes like unit name, so we want to have it on linux.
, withSystemd ? lib.meta.availableOn stdenv.hostPlatform systemd
, systemd
# procps is mostly Linux-only. Most commands require a running Linux
# system (or very similar like that found in Cygwin). The one
# exception is watch which is portable enough to run on pretty much
# any UNIX-compatible system.
, watchOnly ? !(stdenv.isLinux || stdenv.isCygwin)
}:
stdenv.mkDerivation rec {
pname = "procps";
version = "3.3.17";
# The project's releases are on SF, but git repo on gitlab.
src = fetchurl {
url = "mirror://sourceforge/procps-ng/procps-ng-${version}.tar.xz";
sha256 = "sha256-RRiz56r9NOwH0AY9JQ/UdJmbILIAIYw65W9dIRPxQbQ=";
};
patches = lib.optionals stdenv.hostPlatform.isMusl [
# NOTE: Starting from 4.x we will not need a patch anymore, but need to add
# "--disable-w" to configureFlags instead to prevent the utmp errors
(fetchpatch {
name = "musl-fix-includes.patch";
url = "https://git.alpinelinux.org/aports/plain/main/procps/musl-fixes.patch?id=37cb5b6ef194db66d9ed07c8ecab59bca3b91215";
sha256 = "sha256-DphAvESmVg1U3bJABU95R++QD34odStCl82EF0vmht0=";
})
];
buildInputs = [ ncurses ]
++ lib.optional withSystemd systemd;
nativeBuildInputs = [ pkg-config ];
makeFlags = [ "usrbin_execdir=$(out)/bin" ]
++ lib.optionals watchOnly [ "watch" "PKG_LDFLAGS=" ];
enableParallelBuilding = true;
# Too red
configureFlags = [ "--disable-modern-top" ]
++ lib.optional withSystemd "--with-systemd"
++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
"ac_cv_func_malloc_0_nonnull=yes"
"ac_cv_func_realloc_0_nonnull=yes"
];
installPhase = lib.optionalString watchOnly ''
install -m 0755 -D watch $out/bin/watch
install -m 0644 -D watch.1 $out/share/man/man1/watch.1
'';
meta = with lib; {
homepage = "https://gitlab.com/procps-ng/procps";
description = "Utilities that give information about processes using the /proc filesystem";
priority = 11; # less than coreutils, which also provides "kill" and "uptime"
license = licenses.gpl2;
platforms = platforms.unix;
maintainers = [ maintainers.typetetris ];
};
}