commit e409d0fed3b5d50147b61b6d223d9aa272863485 · pyrox.dev/nixpkgs

+40 -34

nixos/doc/manual/development/writing-modules.xml

···

       107
       107
        
       by other modules (typically the user’s

     

       108
       108
        
       <filename>configuration.nix</filename>):

     

       109
       109
        
       <option>services.locate.enable</option> (whether the database should

     

       110
       110
       -
       be updated) and <option>services.locate.period</option> (when the

     

       110
       110
       +
       be updated) and <option>services.locate.interval</option> (when the

     

       111
       111
        
       update should be done).  It implements its functionality by defining

     

       112
       112
        
       two options declared by other modules:

     

       113
       113
        
       <option>systemd.services</option> (the set of all systemd services)

     

       114
       114
       -
       and <option>services.cron.systemCronJobs</option> (the list of

     

       115
       115
       -
       commands to be executed periodically by <command>cron</command>).</para>

     

       114
       114
       +
       and <option>systemd.timers</option> (the list of commands to be

     

       115
       115
       +
       executed periodically by <command>systemd</command>).</para>

     

       116
       116
        
       

     

       117
       117
        
       <example xml:id='locate-example'><title>NixOS Module for the “locate” Service</title>

     

       118
       118
        
       <programlisting>

     
···

       120
       120
        
       

     

       121
       121
        
       with lib;

     

       122
       122
        
       

     

       123
       123
       -
       let locatedb = "/var/cache/locatedb"; in

     

       123
       123
       +
       let

     

       124
       124
       +
         cfg = config.services.locate;

     

       125
       125
       +
       in {

     

       126
       126
       +
         options.services.locate = {

     

       127
       127
       +
           enable = mkOption {

     

       128
       128
       +
             type = types.bool;

     

       129
       129
       +
             default = false;

     

       130
       130
       +
             description = ''

     

       131
       131
       +
               If enabled, NixOS will periodically update the database of

     

       132
       132
       +
               files used by the <command>locate</command> command.

     

       133
       133
       +
             '';

     

       134
       134
       +
           };

     

       124
       135
        
       

     

       125
       125
       -
       {

     

       126
       126
       -
         options = {

     

       127
       127
       -
       

     

       128
       128
       -
           services.locate = {

     

       129
       129
       -
       

     

       130
       130
       -
             enable = mkOption {

     

       131
       131
       -
               type = types.bool;

     

       132
       132
       -
               default = false;

     

       133
       133
       -
               description = ''

     

       134
       134
       -
                 If enabled, NixOS will periodically update the database of

     

       135
       135
       -
                 files used by the <command>locate</command> command.

     

       136
       136
       -
               '';

     

       137
       137
       -
             };

     

       138
       138
       -
       

     

       139
       139
       -
             period = mkOption {

     

       140
       140
       -
               type = types.str;

     

       141
       141
       -
               default = "15 02 * * *";

     

       142
       142
       -
               description = ''

     

       143
       143
       -
                 This option defines (in the format used by cron) when the

     

       144
       144
       -
                 locate database is updated.  The default is to update at

     

       145
       145
       -
                 02:15 at night every day.

     

       146
       146
       -
               '';

     

       147
       147
       -
             };

     

       136
       136
       +
           interval = mkOption {

     

       137
       137
       +
             type = types.str;

     

       138
       138
       +
             default = "02:15";

     

       139
       139
       +
             example = "hourly";

     

       140
       140
       +
             description = ''

     

       141
       141
       +
               Update the locate database at this interval. Updates by

     

       142
       142
       +
               default at 2:15 AM every day.

     

       148
       143
        
       

     

       144
       144
       +
               The format is described in

     

       145
       145
       +
               <citerefentry><refentrytitle>systemd.time</refentrytitle>

     

       146
       146
       +
               <manvolnum>7</manvolnum></citerefentry>.

     

       147
       147
       +
             '';

     

       149
       148
        
           };

     

       150
       149
        
       

     

       150
       150
       +
           # Other options omitted for documentation

     

       151
       151
        
         };

     

       152
       152
        
       

     

       153
       153
        
         config = {

     

       154
       154
       -
       

     

       155
       154
        
           systemd.services.update-locatedb =

     

       156
       155
        
             { description = "Update Locate Database";

     

       157
       156
        
               path  = [ pkgs.su ];

     

       158
       157
        
               script =

     

       159
       158
        
                 ''

     

       160
       160
       -
                   mkdir -m 0755 -p $(dirname ${locatedb})

     

       161
       161
       -
                   exec updatedb --localuser=nobody --output=${locatedb} --prunepaths='/tmp /var/tmp /run'

     

       159
       159
       +
                   mkdir -m 0755 -p $(dirname ${toString cfg.output})

     

       160
       160
       +
                   exec updatedb \

     

       161
       161
       +
                     --localuser=${cfg.localuser} \

     

       162
       162
       +
                     ${optionalString (!cfg.includeStore) "--prunepaths='/nix/store'"} \

     

       163
       163
       +
                     --output=${toString cfg.output} ${concatStringsSep " " cfg.extraFlags}

     

       162
       164
        
                 '';

     

       163
       165
        
             };

     

       164
       166
        
       

     

       165
       165
       -
           services.cron.systemCronJobs = optional config.services.locate.enable

     

       166
       166
       -
             "${config.services.locate.period} root ${config.systemd.package}/bin/systemctl start update-locatedb.service";

     

       167
       167
       -
       

     

       167
       167
       +
           systemd.timers.update-locatedb = mkIf cfg.enable

     

       168
       168
       +
             { description = "Update timer for locate database";

     

       169
       169
       +
               partOf      = [ "update-locatedb.service" ];

     

       170
       170
       +
               wantedBy    = [ "timers.target" ];

     

       171
       171
       +
               timerConfig.OnCalendar = cfg.interval;

     

       172
       172
       +
             };

     

       168
       173
        
         };

     

       169
       169
       -
       }</programlisting>

     

       174
       174
       +
       }

     

       175
       175
       +
       </programlisting>

     

       170
       176
        
       </example>

     

       171
       177
        
       

     

       172
       178
        
       <xi:include href="option-declarations.xml" />

+65 -60

nixos/modules/misc/locate.nix

···

       1
       1
       -
       { config, lib, pkgs, ... }:

     

       1
       1
       +
       { config, options, lib, pkgs, ... }:

     

       2
       2
        
       

     

       3
       3
        
       with lib;

     

       4
       4
        
       

     

       5
       5
        
       let

     

       6
       6
        
         cfg = config.services.locate;

     

       7
       7
        
       in {

     

       8
       8
       +
         options.services.locate = {

     

       9
       9
       +
           enable = mkOption {

     

       10
       10
       +
             type = types.bool;

     

       11
       11
       +
             default = false;

     

       12
       12
       +
             description = ''

     

       13
       13
       +
               If enabled, NixOS will periodically update the database of

     

       14
       14
       +
               files used by the <command>locate</command> command.

     

       15
       15
       +
             '';

     

       16
       16
       +
           };

     

       8
       17
        
       

     

       9
       9
       -
         ###### interface

     

       18
       18
       +
           interval = mkOption {

     

       19
       19
       +
             type = types.str;

     

       20
       20
       +
             default = "02:15";

     

       21
       21
       +
             example = "hourly";

     

       22
       22
       +
             description = ''

     

       23
       23
       +
               Update the locate database at this interval. Updates by

     

       24
       24
       +
               default at 2:15 AM every day.

     

       10
       25
        
       

     

       11
       11
       -
         options = {

     

       26
       26
       +
               The format is described in

     

       27
       27
       +
               <citerefentry><refentrytitle>systemd.time</refentrytitle>

     

       28
       28
       +
               <manvolnum>7</manvolnum></citerefentry>.

     

       29
       29
       +
             '';

     

       30
       30
       +
           };

     

       12
       31
        
       

     

       13
       13
       -
           services.locate = {

     

       32
       32
       +
           # This is no longer supported, but we keep it to give a better warning below

     

       33
       33
       +
           period = mkOption { visible = false; };

     

       14
       34
        
       

     

       15
       15
       -
             enable = mkOption {

     

       16
       16
       -
               type = types.bool;

     

       17
       17
       -
               default = false;

     

       18
       18
       -
               description = ''

     

       19
       19
       -
                 If enabled, NixOS will periodically update the database of

     

       20
       20
       -
                 files used by the <command>locate</command> command.

     

       21
       21
       -
               '';

     

       22
       22
       -
             };

     

       35
       35
       +
           extraFlags = mkOption {

     

       36
       36
       +
             type = types.listOf types.str;

     

       37
       37
       +
             default = [ ];

     

       38
       38
       +
             description = ''

     

       39
       39
       +
               Extra flags to pass to <command>updatedb</command>.

     

       40
       40
       +
             '';

     

       41
       41
       +
           };

     

       23
       42
        
       

     

       24
       24
       -
             period = mkOption {

     

       25
       25
       -
               type = types.str;

     

       26
       26
       -
               default = "15 02 * * *";

     

       27
       27
       -
               description = ''

     

       28
       28
       -
                 This option defines (in the format used by cron) when the

     

       29
       29
       -
                 locate database is updated.

     

       30
       30
       -
                 The default is to update at 02:15 at night every day.

     

       31
       31
       -
               '';

     

       32
       32
       -
             };

     

       43
       43
       +
           output = mkOption {

     

       44
       44
       +
             type = types.path;

     

       45
       45
       +
             default = "/var/cache/locatedb";

     

       46
       46
       +
             description = ''

     

       47
       47
       +
               The database file to build.

     

       48
       48
       +
             '';

     

       49
       49
       +
           };

     

       33
       50
        
       

     

       34
       34
       -
             extraFlags = mkOption {

     

       35
       35
       -
               type = types.listOf types.str;

     

       36
       36
       -
               default = [ ];

     

       37
       37
       -
               description = ''

     

       38
       38
       -
                 Extra flags to pass to <command>updatedb</command>.

     

       39
       39
       -
               '';

     

       40
       40
       -
             };

     

       41
       41
       -
       

     

       42
       42
       -
             output = mkOption {

     

       43
       43
       -
               type = types.path;

     

       44
       44
       -
               default = "/var/cache/locatedb";

     

       45
       45
       -
               description = ''

     

       46
       46
       -
                 The database file to build.

     

       47
       47
       -
               '';

     

       48
       48
       -
             };

     

       49
       49
       -
       

     

       50
       50
       -
             localuser = mkOption {

     

       51
       51
       -
               type = types.str;

     

       52
       52
       -
               default = "nobody";

     

       53
       53
       -
               description = ''

     

       54
       54
       -
                 The user to search non-network directories as, using

     

       55
       55
       -
                 <command>su</command>.

     

       56
       56
       -
               '';

     

       57
       57
       -
             };

     

       58
       58
       -
       

     

       59
       59
       -
             includeStore = mkOption {

     

       60
       60
       -
               type = types.bool;

     

       61
       61
       -
               default = false;

     

       62
       62
       -
               description = ''

     

       63
       63
       -
                 Whether to include <filename>/nix/store</filename> in the locate database.

     

       64
       64
       -
               '';

     

       65
       65
       -
             };

     

       66
       66
       -
       

     

       51
       51
       +
           localuser = mkOption {

     

       52
       52
       +
             type = types.str;

     

       53
       53
       +
             default = "nobody";

     

       54
       54
       +
             description = ''

     

       55
       55
       +
               The user to search non-network directories as, using

     

       56
       56
       +
               <command>su</command>.

     

       57
       57
       +
             '';

     

       67
       58
        
           };

     

       68
       59
        
       

     

       60
       60
       +
           includeStore = mkOption {

     

       61
       61
       +
             type = types.bool;

     

       62
       62
       +
             default = false;

     

       63
       63
       +
             description = ''

     

       64
       64
       +
               Whether to include <filename>/nix/store</filename> in the locate database.

     

       65
       65
       +
             '';

     

       66
       66
       +
           };

     

       69
       67
        
         };

     

       70
       68
        
       

     

       71
       71
       -
         ###### implementation

     

       72
       72
       -
       

     

       73
       69
        
         config = {

     

       70
       70
       +
           warnings = let opt = options.services.locate.period; in optional opt.isDefined "The `period` definition in ${showFiles opt.files} has been removed; please replace it with `interval`, using the new systemd.time interval specifier.";

     

       71
       71
       +
       

     

       74
       72
        
           systemd.services.update-locatedb =

     

       75
       73
        
             { description = "Update Locate Database";

     

       76
       74
        
               path  = [ pkgs.su ];

     
···

       84
       82
        
                 '';

     

       85
       83
        
               serviceConfig.Nice = 19;

     

       86
       84
        
               serviceConfig.IOSchedulingClass = "idle";

     

       85
       85
       +
               serviceConfig.PrivateTmp = "yes";

     

       86
       86
       +
               serviceConfig.PrivateNetwork = "yes";

     

       87
       87
       +
               serviceConfig.NoNewPrivileges = "yes";

     

       88
       88
       +
               serviceConfig.ReadOnlyDirectories = "/";

     

       89
       89
       +
               serviceConfig.ReadWriteDirectories = cfg.output;

     

       87
       90
        
             };

     

       88
       91
        
       

     

       89
       89
       -
           services.cron.systemCronJobs = optional config.services.locate.enable

     

       90
       90
       -
             "${config.services.locate.period} root ${config.systemd.package}/bin/systemctl start update-locatedb.service";

     

       91
       91
       -
       

     

       92
       92
       +
           systemd.timers.update-locatedb = mkIf cfg.enable

     

       93
       93
       +
             { description = "Update timer for locate database";

     

       94
       94
       +
               partOf      = [ "update-locatedb.service" ];

     

       95
       95
       +
               wantedBy    = [ "timers.target" ];

     

       96
       96
       +
               timerConfig.OnCalendar = cfg.interval;

     

       97
       97
       +
             };

     

       92
       98
        
         };

     

       93
       93
       -
       

     

       94
       99
        
       }