simplify CI

* I didn't know what I was doing when I set up Hydra

* it's not certain that I do now either, but hey ho

tests/ext4/test.nix

@@ -1,9 +1,5 @@
-{
-  liminix
-, nixpkgs
-}:
-let img = (import liminix {
-      device = import "${liminix}/devices/qemu/";
+let img = (import <liminix> {
+      device = import <liminix/devices/qemu>;
       liminix-config = ./configuration.nix;
     }).outputs.vmroot;
     pkgs = import <nixpkgs> { overlays = [(import ../../overlay.nix)]; };

tests/fennel/test.nix

@@ -1,9 +1,5 @@
-{
-  liminix
-, nixpkgs
-}:
 let
-  overlay = import "${liminix}/overlay.nix";
+  overlay = import <liminix/overlay.nix>;
   pkgs = import <nixpkgs> { overlays = [overlay]; };
   script = pkgs.writeFennel "foo" {} ./hello.fnl;
   inherit (pkgs.lua.pkgs) fifo;

tests/inout/test.nix

@@ -1,9 +1,5 @@
-{
-  liminix
-, nixpkgs
-}:
-let img = (import liminix {
-      device = import "${liminix}/devices/qemu/";
+let img = (import <liminix> {
+      device = import <liminix/devices/qemu>;
       liminix-config = ./configuration.nix;
     }).outputs.vmroot;
     pkgs = import <nixpkgs> { overlays = [(import ../../overlay.nix)]; };

tests/jffs2/test.nix

@@ -1,9 +1,5 @@
-{
-  liminix
-, nixpkgs
-}:
-let img = (import liminix {
-      device = import "${liminix}/devices/qemu/";
+let img = (import <liminix> {
+      device = import <liminix/devices/qemu>;
       liminix-config = ./configuration.nix;
     }).outputs.vmroot;
     pkgs = import <nixpkgs> { overlays = [(import ../../overlay.nix)]; };

tests/min-copy-closure/test.nix

@@ -1,9 +1,5 @@
-{
-  liminix
-, nixpkgs
-}:
-let lmx = (import liminix {
-      device = import "${liminix}/devices/qemu/";
+let lmx = (import <liminix> {
+      device = import <liminix/devices/qemu>;
       liminix-config = ./configuration.nix;
     });
     rogue = lmx.pkgs.rogue;

tests/pppoe/test.nix

@@ -1,9 +1,5 @@
-{
-  liminix
-, nixpkgs
-}:
-let img = (import liminix {
-      device = import "${liminix}/devices/qemu";
+let img = (import <liminix> {
+      device = import <liminix/devices/qemu>;
       liminix-config = ./configuration.nix;
     }).outputs.default;
     pkgs = import <nixpkgs> { overlays = [(import ../../overlay.nix)]; };

tests/pseudofiles/test.nix

@@ -1,13 +1,9 @@
-{
-  liminix
-, nixpkgs
-}:
 let
-  overlay = import "${liminix}/overlay.nix";
+  overlay = import <liminix/overlay.nix>;
   nixpkgs = import <nixpkgs> { overlays = [overlay]; };
   fixture = nixpkgs.callPackage ./fixture.nix {};
 in nixpkgs.runCommand "check" {
-    nativeBuildInputs = with nixpkgs; [ squashfsTools qprint ] ;
+    nativeBuildInputs = with <nixpkgs>; [ squashfsTools qprint ] ;
   } ''
 set -e
 diff ${fixture} ${./result.expected}

tests/smoke/test.nix

@@ -1,10 +1,6 @@
-{
-  liminix
-, nixpkgs
-}:
-let img = (import liminix {
-      device = import "${liminix}/devices/qemu/";
-      liminix-config = "${liminix}/vanilla-configuration.nix";
+let img = (import <liminix> {
+      device = import <liminix/devices/qemu>;
+      liminix-config = <liminix/vanilla-configuration.nix>;
     }).outputs.rootfs;
     pkgs = import <nixpkgs> {};
 in pkgs.runCommand "check" {

tests/tftpboot/test.nix

@@ -1,9 +1,6 @@
-{
-  liminix
-}:
 let check = deviceName  : config :
-let derivation = (import liminix {
-      device = import "${liminix}/devices/${deviceName}/";
+let derivation = (import <liminix> {
+      device = import (<liminix/devices> + "/${deviceName}");
       liminix-config = { ... } : {
         imports = [./configuration.nix];
         inherit config;

tests/updown/test.nix

@@ -1,9 +1,5 @@
-{
-  liminix
-, nixpkgs
-}:
-let img = (import liminix {
-      device = import "${liminix}/devices/qemu/";
+let img = (import <liminix> {
+      device = import <liminix/devices/qemu>;
       liminix-config = ./configuration.nix;
     }).outputs.vmroot;
     pkgs = import <nixpkgs> { overlays = [(import ../../overlay.nix)]; };

tests/wlan/test.nix

@@ -1,9 +1,5 @@
-{
-  liminix
-, nixpkgs
-}:
-let img = (import liminix {
-      device = import "${liminix}/devices/qemu-armv7l/";
+let img = (import <liminix> {
+      device = import <liminix/devices/qemu-armv7l>;
       liminix-config = ./configuration.nix;
     }).outputs.default;
     pkgs = import <nixpkgs> { overlays = [(import ../../overlay.nix)]; };