pyrox.dev
1{
2 lib,
3 stdenv,
4 replaceVarsWith,
5}:
6
7# Provides a facility to hook into rfkill changes.
8#
9# Exemplary usage:
10#
11# Add this package to udev.packages, e.g.:
12# udev.packages = [ pkgs.rfkill_udev ];
13#
14# Add a hook script in the managed etc directory, e.g.:
15# etc."rfkill.hook" = {
16# mode = "0755";
17# text = ''
18# #!${pkgs.runtimeShell}
19#
20# if [ "$RFKILL_STATE" -eq "1" ]; then
21# exec ${config.system.build.upstart}/sbin/initctl emit -n antenna-on
22# else
23# exec ${config.system.build.upstart}/sbin/initctl emit -n antenna-off
24# fi
25# '';
26# }
27
28# Note: this package does not need the binaries
29# in the rfkill package.
30
31let
32 rfkillHook = replaceVarsWith {
33 replacements = { inherit (stdenv) shell; };
34 isExecutable = true;
35 src = ./rfkill-hook.sh;
36 };
37in
38stdenv.mkDerivation {
39 name = "rfkill-udev";
40
41 dontUnpack = true;
42 dontBuild = true;
43
44 installPhase = ''
45 mkdir -p "$out/etc/udev/rules.d/";
46 cat > "$out/etc/udev/rules.d/90-rfkill.rules" << EOF
47 SUBSYSTEM=="rfkill", ATTR{type}=="wlan", RUN+="$out/bin/rfkill-hook.sh"
48 EOF
49
50 mkdir -p "$out/bin/";
51 cp ${rfkillHook} "$out/bin/rfkill-hook.sh"
52 '';
53
54 meta = with lib; {
55 homepage = "http://wireless.kernel.org/en/users/Documentation/rfkill";
56 description = "Rules+hook for udev to catch rfkill state changes";
57 mainProgram = "rfkill-hook.sh";
58 platforms = platforms.linux;
59 license = licenses.mit;
60 };
61}