nixpkgs/modules/system/etc/etc.nix
Eelco Dolstra 4046056cdc * In the activation script, don't require the path to the "system"
derivation on the command line.

svn path=/nixos/trunk/; revision=23770
2010-09-13 18:19:15 +00:00

66 lines
1.3 KiB
Nix

# Produce a script to generate /etc.
{ config, pkgs, ... }:
with pkgs.lib;
###### interface
let
option = {
environment.etc = mkOption {
default = [];
example = [
{ source = "/nix/store/.../etc/dir/file.conf.example";
target = "dir/file.conf";
mode = "0440";
}
];
description = ''
List of files that have to be linked in /etc.
'';
};
};
in
###### implementation
let
copyScript = {source, target, mode ? "644", own ? "root.root"}:
assert target != "nixos";
''
source="${source}"
target="/etc/${target}"
mkdir -p $(dirname "$target")
test -e "$target" && rm -f "$target"
cp "$source" "$target"
chown ${own} "$target"
chmod ${mode} "$target"
'';
etc = pkgs.stdenv.mkDerivation {
name = "etc";
builder = ./make-etc.sh;
/* !!! Use toXML. */
sources = map (x: x.source) config.environment.etc;
targets = map (x: x.target) config.environment.etc;
modes = map (x: if x ? mode then x.mode else "symlink") config.environment.etc;
};
in
{
require = [option];
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
'';
}