ci: add nix ci that uploads build result to cachix

.github/workflows/nix.yml

@@ -0,0 +1,25 @@
+name: Nix
+on: [ push, pull_request ]
+
+jobs:
+  build:
+    name: Check flake and upload build cache
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: cachix/install-nix-action@v22
+        with:
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Authenticate with Cachix
+        uses: cachix/cachix-action@v13
+        with:
+          name: mrnossiom
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+
+      - name: Check flake structure
+        run: nix flake check
+
+      - name: Build nix package
+        run: nix build -L

.github/workflows/rust.yml

@@ -1,16 +1,14 @@
-name: Rust CI
-on: [push, pull_request]
+name: Rust
+on: [ push, pull_request ]
 
 jobs:
   check:
-    name: Check, Test, Format and Clippy
+    name: Check and test Rust code
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v2
+      - uses: actions/checkout@v2
 
-      - name: Install Rust toolchain
-        uses: actions-rs/toolchain@v1
+      - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
           components: rustfmt, clippy
@@ -28,7 +26,7 @@ jobs:
         with:
           command: test
 
-      - name: Format Check
+      - name: Cargo Format Check
         uses: actions-rs/cargo@v1
         with:
           command: fmt

README.md

@@ -2,6 +2,9 @@
 
 ###### Check for unsaved or uncommitted changes on your machine.
 
+![Nix Powered](https://img.shields.io/badge/Nix-Powered-blue?logo=nixos)
+[![Cachix Cache](https://img.shields.io/badge/cachix-mrnossiom-blue.svg)](https://mrnossiom.cachix.org)
+
 # Usage
 
 Set the `leaveTool.defaultFolder` key in your git global configuration file to use the `--default` or `-d` flag.

flake.nix

@@ -24,7 +24,7 @@
       pkgs = import nixpkgs { inherit system overlays; };
       rustToolchain = pkgs.pkgsBuildHost.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
 
-      nativeBuildInputs = with pkgs; [ rustToolchain pkg-config ];
+      nativeBuildInputs = with pkgs; [ rustToolchain pkg-config act ];
       buildInputs = with pkgs; [ openssl ];
     in
     with pkgs;