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home-manager/modules/targets/generic-linux.nix
polykernel 8ec13d33b1
targets.genericLinux: include additional directories in XCURSOR_PATH (#2902)
This commit appends system-wide icon and pixmap directory and the icon
directory in the home-manager profile to the XCURSOR_PATH session variable
for the generic linux target. This is necessary because the default prefix
for libXcursor resolves to the Nix store which excludes the aforementioned
directories from being searched for cursor themes. [1]

[1] - https://github.com/nix-community/home-manager/pull/2891#issuecomment-1101064521.
2022-04-19 20:04:10 -04:00

105 lines
3.1 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.targets.genericLinux;
profileDirectory = config.home.profileDirectory;
in {
imports = [
(mkRenamedOptionModule [ "targets" "genericLinux" "extraXdgDataDirs" ] [
"xdg"
"systemDirs"
"data"
])
];
options.targets.genericLinux = {
enable = mkEnableOption "" // {
description = ''
Whether to enable settings that make Home Manager work better on
GNU/Linux distributions other than NixOS.
'';
};
};
config = mkIf cfg.enable {
assertions = [
(hm.assertions.assertPlatform "targets.genericLinux" pkgs platforms.linux)
];
xdg.systemDirs.data = [
# Nix profiles
"\${NIX_STATE_DIR:-/nix/var/nix}/profiles/default/share"
"${profileDirectory}/share"
# Distribution-specific
"/usr/share/ubuntu"
"/usr/local/share"
"/usr/share"
"/var/lib/snapd/desktop"
];
# We need to append system-wide FHS directories due to the default prefix
# resolving to the Nix store.
# https://github.com/nix-community/home-manager/pull/2891#issuecomment-1101064521
home.sessionVariables = {
XCURSOR_PATH = "$XCURSOR_PATH\${XCURSOR_PATH:+:}" + concatStringsSep ":" [
"${config.home.profileDirectory}/share/icons"
"/usr/share/icons"
"/usr/share/pixmaps"
];
};
home.sessionVariablesExtra = ''
. "${pkgs.nix}/etc/profile.d/nix.sh"
# reset TERM with new TERMINFO available (if any)
export TERM="$TERM"
'';
# We need to source both nix.sh and hm-session-vars.sh as noted in
# https://github.com/nix-community/home-manager/pull/797#issuecomment-544783247
programs.bash.initExtra = ''
. "${pkgs.nix}/etc/profile.d/nix.sh"
. "${profileDirectory}/etc/profile.d/hm-session-vars.sh"
'';
programs.zsh.envExtra = ''
# Make system functions available to zsh
() {
setopt LOCAL_OPTIONS CASE_GLOB EXTENDED_GLOB
local system_fpaths=(
# Package default
/usr/share/zsh/site-functions(/-N)
# Debian
/usr/share/zsh/functions/**/*(/-N)
/usr/share/zsh/vendor-completions/(/-N)
/usr/share/zsh/vendor-functions/(/-N)
)
fpath=(''${fpath} ''${system_fpaths})
}
'';
systemd.user.sessionVariables = let
# https://github.com/archlinux/svntogit-packages/blob/packages/ncurses/trunk/PKGBUILD
# https://salsa.debian.org/debian/ncurses/-/blob/master/debian/rules
# https://src.fedoraproject.org/rpms/ncurses/blob/main/f/ncurses.spec
# https://gitweb.gentoo.org/repo/gentoo.git/tree/sys-libs/ncurses/ncurses-6.2-r1.ebuild
distroTerminfoDirs = concatStringsSep ":" [
"/etc/terminfo" # debian, fedora, gentoo
"/lib/terminfo" # debian
"/usr/share/terminfo" # package default, all distros
];
in {
NIX_PATH = "$HOME/.nix-defexpr/channels\${NIX_PATH:+:}$NIX_PATH";
TERMINFO_DIRS =
"${profileDirectory}/share/terminfo:$TERMINFO_DIRS\${TERMINFO_DIRS:+:}${distroTerminfoDirs}";
};
};
}