Update test workflow.

Author: brocaar

.github/workflows/main.yml

@@ -7,16 +7,22 @@ jobs:
       -
         name: Checkout
         uses: actions/checkout@v2
+      - 
+        name: Install Nix
+        uses: cachix/install-nix-action@v20
+        with:
+          nix_path: nixpkgs=channel:nixos-23.05
       -
         name: Cargo cache
         uses: actions/cache@v3
         with:
-          path: .rust/
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-      -
-        name: Run the tests
-        run: make test
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: ${{ runner.os }}-cargo-test-${{ hashFiles('**/Cargo.lock') }}
       -
-        name: Make cache accessible to caching action
-        run: |
-          sudo chown $(whoami):$(whoami) -R .rust
+        name: Run tests
+        run: nix-shell --command "make test"

.gitignore

@@ -1,6 +1,7 @@
 # hidden files
 .*
 !/.cargo
+!/.github
 
 # rust buids / cache
 /target

docker-compose.yml

@@ -6,8 +6,4 @@ services:
       dockerfile: Dockerfile-devel
     volumes:
       - ./:/chirpstack-udp-forwarder
-      - ./.rust/target:/chirpstack-udp-forwarder/target
-      - ./.rust/rustup:/usr/local/rustup
-      - ./.rust/cargo/registry/index:/usr/local/cargo/registry/index
-      - ./.rust/cargo/registry/cache:/usr/local/cargo/registry/cache
-      - ./.rust/cargo/git/db:/usr/local/cargo/git/db
+

shell.nix

@@ -1,4 +1,4 @@
-{ pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/nixos-22.11.tar.gz") {} }:
+{ pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/nixos-23.05.tar.gz") {} }:
 
 pkgs.mkShell {
   buildInputs = [