nixpkgs/modules/system/etc/etc.nix
Eelco Dolstra ab238804b8 Turn environment.etc into an attribute set
This provides a more convenient syntax and allows easier overriding.

For example,

  environment.etc = singleton
    { target = "vconsole.conf";
      source = vconsoleConf;
    };

can now be written as

  environment.etc."vconsole.conf".source = vconsoleConf;
2013-02-03 14:28:18 +01:00

99 lines
2 KiB
Nix

# Management of static files in /etc.
{ config, pkgs, ... }:
with pkgs.lib;
let
etc' = attrValues config.environment.etc;
etc = pkgs.stdenv.mkDerivation {
name = "etc";
builder = ./make-etc.sh;
preferLocalBuild = true;
/* !!! Use toXML. */
sources = map (x: x.source) etc';
targets = map (x: x.target) etc';
modes = map (x: x.mode) etc';
};
in
{
###### interface
options = {
environment.etc = mkOption {
type = types.loaOf types.optionSet;
default = {};
example =
{ hosts =
{ source = "/nix/store/.../etc/dir/file.conf.example";
mode = "0440";
};
"default/useradd".text = "GROUP=100 ...";
};
description = ''
Set of files that have to be linked in <filename>/etc</filename>.
'';
options = singleton ({ name, config, ... }:
{ options = {
source = mkOption {
description = "Path of the source file.";
};
target = mkOption {
description = ''
Name of symlink (relative to
<filename>/etc</filename>). Defaults to the attribute
name.
'';
};
mode = mkOption {
default = "symlink";
example = "0600";
description = ''
If set to something else than <literal>symlink</literal>,
the file is copied instead of symlinked, with the given
file mode.
'';
};
};
config = {
target = mkDefault name;
};
});
};
};
###### implementation
config = {
system.build.etc = etc;
system.activationScripts.etc = stringAfter [ "stdio" ]
''
# Set up the statically computed bits of /etc.
echo "setting up /etc..."
${pkgs.perl}/bin/perl ${./setup-etc.pl} ${etc}/etc
'';
};
}