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nixos/systemd: validate the values of systemd.services.<name>.after

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and similar option. Notably check that they end with one of .service,
.target, etc.
This commit is contained in:
Guillaume Girol 2021-12-27 12:00:00 +00:00
parent cb372c3b88
commit 2a37dd8ab3
2 changed files with 15 additions and 12 deletions
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3
nixos/lib/systemd-lib.nix
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@ -11,6 +11,9 @@ in rec {
mkPathSafeName = lib.replaceChars ["@" ":" "\\" "[" "]"] ["-" "-" "-" "" ""]; mkPathSafeName = lib.replaceChars ["@" ":" "\\" "[" "]"] ["-" "-" "-" "" ""];
# a type for options that take a unit name
unitNameType = types.strMatching "[a-zA-Z0-9@%:_.\\-]+[.](service|socket|device|mount|automount|swap|target|path|timer|scope|slice)";
makeUnit = name: unit: makeUnit = name: unit:
if unit.enable then if unit.enable then
pkgs.runCommand "unit-${mkPathSafeName name}" pkgs.runCommand "unit-${mkPathSafeName name}"

24
nixos/lib/systemd-unit-options.nix
View file

@ -45,7 +45,7 @@ in rec {
requiredBy = mkOption { requiredBy = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
Units that require (i.e. depend on and need to go down with) Units that require (i.e. depend on and need to go down with)
this unit. The discussion under <literal>wantedBy</literal> this unit. The discussion under <literal>wantedBy</literal>
@ -56,7 +56,7 @@ in rec {
wantedBy = mkOption { wantedBy = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
Units that want (i.e. depend on) this unit. The standard way Units that want (i.e. depend on) this unit. The standard way
to make a unit start by default at boot is to set this option to make a unit start by default at boot is to set this option
@ -73,7 +73,7 @@ in rec {
aliases = mkOption { aliases = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = "Aliases of that unit."; description = "Aliases of that unit.";
}; };
@ -110,7 +110,7 @@ in rec {
requires = mkOption { requires = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
Start the specified units when this unit is started, and stop Start the specified units when this unit is started, and stop
this unit when the specified units are stopped or fail. this unit when the specified units are stopped or fail.
@ -119,7 +119,7 @@ in rec {
wants = mkOption { wants = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
Start the specified units when this unit is started. Start the specified units when this unit is started.
''; '';
@ -127,7 +127,7 @@ in rec {
after = mkOption { after = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
If the specified units are started at the same time as If the specified units are started at the same time as
this unit, delay this unit until they have started. this unit, delay this unit until they have started.
@ -136,7 +136,7 @@ in rec {
before = mkOption { before = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
If the specified units are started at the same time as If the specified units are started at the same time as
this unit, delay them until this unit has started. this unit, delay them until this unit has started.
@ -145,7 +145,7 @@ in rec {
bindsTo = mkOption { bindsTo = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
Like ‘requires’, but in addition, if the specified units Like ‘requires’, but in addition, if the specified units
unexpectedly disappear, this unit will be stopped as well. unexpectedly disappear, this unit will be stopped as well.
@ -154,7 +154,7 @@ in rec {
partOf = mkOption { partOf = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
If the specified units are stopped or restarted, then this If the specified units are stopped or restarted, then this
unit is stopped or restarted as well. unit is stopped or restarted as well.
@ -163,7 +163,7 @@ in rec {
conflicts = mkOption { conflicts = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
If the specified units are started, then this unit is stopped If the specified units are started, then this unit is stopped
and vice versa. and vice versa.
@ -172,7 +172,7 @@ in rec {
requisite = mkOption { requisite = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
Similar to requires. However if the units listed are not started, Similar to requires. However if the units listed are not started,
they will not be started and the transaction will fail. they will not be started and the transaction will fail.
@ -203,7 +203,7 @@ in rec {
onFailure = mkOption { onFailure = mkOption {
default = []; default = [];
type = types.listOf types.str; type = types.listOf unitNameType;
description = '' description = ''
A list of one or more units that are activated when A list of one or more units that are activated when
this unit enters the "failed" state. this unit enters the "failed" state.