pyrox.dev
nixos/ccache: init
+1
nixos/modules/module-list.nix
+1
nixos/modules/module-list.nix
+83
nixos/modules/programs/ccache.nix
+83
nixos/modules/programs/ccache.nix
···
1
+
{ config, pkgs, lib, ... }:
2
+
3
+
with lib;
4
+
let
5
+
cfg = config.programs.ccache;
6
+
in {
7
+
options.programs.ccache = {
8
+
# host configuration
9
+
enable = mkEnableOption "CCache";
10
+
cacheDir = mkOption {
11
+
type = types.path;
12
+
description = "CCache directory";
13
+
default = "/var/cache/ccache";
14
+
};
15
+
# target configuration
16
+
packageNames = mkOption {
17
+
type = types.listOf types.str;
18
+
description = "Nix top-level packages to be compiled using CCache";
19
+
default = [];
20
+
example = [ "wxGTK30" "qt48" "ffmpeg_3_3" "libav_all" ];
21
+
};
22
+
};
23
+
24
+
config = mkMerge [
25
+
# host configuration
26
+
(mkIf cfg.enable {
27
+
systemd.tmpfiles.rules = [ "d ${cfg.cacheDir} 0770 root nixbld -" ];
28
+
29
+
# "nix-ccache --show-stats" and "nix-ccache --clear"
30
+
security.wrappers.nix-ccache = {
31
+
group = "nixbld";
32
+
setgid = true;
33
+
source = pkgs.writeScript "nix-ccache.pl" ''
34
+
#!${pkgs.perl}/bin/perl
35
+
36
+
%ENV=( CCACHE_DIR => '${cfg.cacheDir}' );
37
+
sub untaint {
38
+
my $v = shift;
39
+
return '-C' if $v eq '-C' || $v eq '--clear';
40
+
return '-V' if $v eq '-V' || $v eq '--version';
41
+
return '-s' if $v eq '-s' || $v eq '--show-stats';
42
+
return '-z' if $v eq '-z' || $v eq '--zero-stats';
43
+
exec('${pkgs.ccache}/bin/ccache', '-h');
44
+
}
45
+
exec('${pkgs.ccache}/bin/ccache', map { untaint $_ } @ARGV);
46
+
'';
47
+
};
48
+
})
49
+
50
+
# target configuration
51
+
(mkIf (cfg.packageNames != []) {
52
+
nixpkgs.overlays = [
53
+
(self: super: genAttrs cfg.packageNames (pn: super.${pn}.override { stdenv = builtins.trace "with ccache: ${pn}" self.ccacheStdenv; }))
54
+
55
+
(self: super: {
56
+
ccacheWrapper = super.ccacheWrapper.override {
57
+
extraConfig = ''
58
+
export CCACHE_COMPRESS=1
59
+
export CCACHE_DIR="${cfg.cacheDir}"
60
+
export CCACHE_UMASK=007
61
+
if [ ! -d "$CCACHE_DIR" ]; then
62
+
echo "====="
63
+
echo "Directory '$CCACHE_DIR' does not exist"
64
+
echo "Please create it with:"
65
+
echo " sudo mkdir -m0770 '$CCACHE_DIR'"
66
+
echo " sudo chown root:nixbld '$CCACHE_DIR'"
67
+
echo "====="
68
+
exit 1
69
+
fi
70
+
if [ ! -w "$CCACHE_DIR" ]; then
71
+
echo "====="
72
+
echo "Directory '$CCACHE_DIR' is not accessible for user $(whoami)"
73
+
echo "Please verify its access permissions"
74
+
echo "====="
75
+
exit 1
76
+
fi
77
+
'';
78
+
};
79
+
})
80
+
];
81
+
})
82
+
];
83
+
}