blob: 0fe91435ce8cb921612403dfc1ac69df3b5eb024 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
{ config, options, lib, pkgs, ... }:
with lib;
let
cfg = config.services.locate;
isMLocate = hasPrefix "mlocate" cfg.locate.name;
isFindutils = hasPrefix "findutils" cfg.locate.name;
in {
options.services.locate = with types; {
enable = mkOption {
type = bool;
default = false;
description = ''
If enabled, NixOS will periodically update the database of
files used by the <command>locate</command> command.
'';
};
locate = mkOption {
type = package;
default = pkgs.findutils;
defaultText = "pkgs.findutils";
example = "pkgs.mlocate";
description = ''
The locate implementation to use
'';
};
interval = mkOption {
type = str;
default = "02:15";
example = "hourly";
description = ''
Update the locate database at this interval. Updates by
default at 2:15 AM every day.
The format is described in
<citerefentry><refentrytitle>systemd.time</refentrytitle>
<manvolnum>7</manvolnum></citerefentry>.
'';
};
extraFlags = mkOption {
type = listOf str;
default = [ ];
description = ''
Extra flags to pass to <command>updatedb</command>.
'';
};
output = mkOption {
type = path;
default = "/var/cache/locatedb";
description = ''
The database file to build.
'';
};
localuser = mkOption {
type = nullOr str;
default = "nobody";
description = ''
The user to search non-network directories as, using
<command>su</command>.
'';
};
pruneFS = mkOption {
type = listOf str;
default = ["afs" "anon_inodefs" "auto" "autofs" "bdev" "binfmt" "binfmt_misc" "cgroup" "cifs" "coda" "configfs" "cramfs" "cpuset" "debugfs" "devfs" "devpts" "devtmpfs" "ecryptfs" "eventpollfs" "exofs" "futexfs" "ftpfs" "fuse" "fusectl" "gfs" "gfs2" "hostfs" "hugetlbfs" "inotifyfs" "iso9660" "jffs2" "lustre" "misc" "mqueue" "ncpfs" "nnpfs" "ocfs" "ocfs2" "pipefs" "proc" "ramfs" "rpc_pipefs" "securityfs" "selinuxfs" "sfs" "shfs" "smbfs" "sockfs" "spufs" "nfs" "NFS" "nfs4" "nfsd" "sshfs" "subfs" "supermount" "sysfs" "tmpfs" "ubifs" "udf" "usbfs" "vboxsf" "vperfctrfs" ];
description = ''
Which filesystem types to exclude from indexing
'';
};
prunePaths = mkOption {
type = listOf path;
default = ["/tmp" "/var/tmp" "/var/cache" "/var/lock" "/var/run" "/var/spool" "/nix/store"];
description = ''
Which paths to exclude from indexing
'';
};
pruneNames = mkOption {
type = listOf str;
default = [];
description = ''
Directory components which should exclude paths containing them from indexing
'';
};
pruneBindMounts = mkOption {
type = bool;
default = false;
description = ''
Whether not to index bind mounts
'';
};
};
config = mkIf cfg.enable {
users.extraGroups = mkIf isMLocate { mlocate = {}; };
security.wrappers = mkIf isMLocate {
locate = {
group = "mlocate";
owner = "root";
permissions = "u+rx,g+x,o+x";
setgid = true;
setuid = false;
source = "${cfg.locate}/bin/locate";
};
};
nixpkgs.config = { locate.dbfile = cfg.output; };
environment.systemPackages = [ cfg.locate ];
environment.variables = mkIf (!isMLocate)
{ LOCATE_PATH = cfg.output;
};
warnings = optional (isMLocate && cfg.localuser != null) "mlocate does not support searching as user other than root"
++ optional (isFindutils && cfg.pruneNames != []) "findutils locate does not support pruning by directory component"
++ optional (isFindutils && cfg.pruneBindMounts) "findutils locate does not support skipping bind mounts";
systemd.services.update-locatedb =
{ description = "Update Locate Database";
path = mkIf (!isMLocate) [ pkgs.su ];
script =
''
mkdir -m 0755 -p ${dirOf cfg.output}
exec ${cfg.locate}/bin/updatedb \
${optionalString (cfg.localuser != null && ! isMLocate) ''--localuser=${cfg.localuser}''} \
--output=${toString cfg.output} ${concatStringsSep " " cfg.extraFlags}
'';
environment = {
PRUNEFS = concatStringsSep " " cfg.pruneFS;
PRUNEPATHS = concatStringsSep " " cfg.prunePaths;
PRUNENAMES = concatStringsSep " " cfg.pruneNames;
PRUNE_BIND_MOUNTS = if cfg.pruneBindMounts then "yes" else "no";
};
serviceConfig.Nice = 19;
serviceConfig.IOSchedulingClass = "idle";
serviceConfig.PrivateTmp = "yes";
serviceConfig.PrivateNetwork = "yes";
serviceConfig.NoNewPrivileges = "yes";
serviceConfig.ReadOnlyDirectories = "/";
serviceConfig.ReadWriteDirectories = dirOf cfg.output;
};
systemd.timers.update-locatedb =
{ description = "Update timer for locate database";
partOf = [ "update-locatedb.service" ];
wantedBy = [ "timers.target" ];
timerConfig.OnCalendar = cfg.interval;
};
};
}
|
