contrib: use Alejandra as formatter

.github/workflows/ci.yaml

@@ -4,20 +4,22 @@ on:
   push:
 jobs:
   tests-linux:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2.3.4
-    - uses: cachix/install-nix-action@v15
+    - uses: actions/checkout@v3
+    - uses: cachix/install-nix-action@v18
       with:
         extra_nix_config: "system-features = nixos-test benchmark big-parallel kvm"
     - run: nix build
+    - run: nix fmt . -- --check
     - run: nix flake check
   tests-darwin:
     runs-on: macos-11
     steps:
-    - uses: actions/checkout@v2.3.4
-    - uses: cachix/install-nix-action@v15
+    - uses: actions/checkout@v3
+    - uses: cachix/install-nix-action@v18
       with:
         extra_nix_config: "system-features = nixos-test benchmark big-parallel kvm"
     - run: nix build
+    - run: nix fmt . -- --check
     - run: nix flake check

README.md

@@ -25,6 +25,7 @@
   * [agenix CLI reference](#agenix-cli-reference)
 * [Community and Support](#community-and-support)
 * [Threat model/Warnings](#threat-modelwarnings)
+* [Contributing](#contributing)
 * [Acknowledgements](#acknowledgements)
 
 ## Problem and solution
@@ -536,6 +537,19 @@ authentication code (MAC) like other implementations like GPG or
 [sops](https://github.com/Mic92/sops-nix) have, however this was left
 out for simplicity in `age`.
 
+## Contributing
+
+* The main branch is protected against direct pushes
+* All changes must go through GitHub PR review and get at least one approval
+* PR titles and commit messages should be prefixed with at least one of these categories:
+  * contrib - things that make the project development better
+  * doc - documentation
+  * feature - new features
+  * fix - bug fixes
+* Please update or make integration tests for new features
+* Use `nix fmt` to format nix code
+
+
 ## Acknowledgements
 
 This project is based off of [sops-nix](https://github.com/Mic92/sops-nix) created Mic92. Thank you to Mic92 for inspiration and advice.

default.nix

@@ -1,4 +1,3 @@
-{ pkgs ? import <nixpkgs> {} }:
-{
+{pkgs ? import <nixpkgs> {}}: {
   agenix = pkgs.callPackage ./pkgs/agenix.nix {};
 }

example/secrets.nix

@@ -1,8 +1,7 @@
 let
   user1 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL0idNvgGiucWgup/mP78zyC23uFjYq0evcWdjGQUaBH";
   system1 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPJDyIr/FSz1cJdcoW69R+NrWzwGK/+3gJpqD1t8L2zE";
-in
-{
+in {
   "secret1.age".publicKeys = [user1 system1];
   "secret2.age".publicKeys = [user1];
   "passwordfile-user1.age".publicKeys = [user1 system1];

flake.nix

@@ -14,18 +14,23 @@
 
     overlays.default = import ./overlay.nix;
 
-    packages.aarch64-linux.agenix = agenix "aarch64-linux";
-    packages.aarch64-linux.default = self.packages.aarch64-linux.agenix;
-
-    packages.i686-linux.agenix = agenix "i686-linux";
-    packages.i686-linux.default = self.packages.i686-linux.agenix;
-
+    formatter.x86_64-darwin = nixpkgs.legacyPackages.x86_64-darwin.alejandra;
     packages.x86_64-darwin.agenix = agenix "x86_64-darwin";
     packages.x86_64-darwin.default = self.packages.x86_64-darwin.agenix;
 
+    formatter.aarch64-darwin = nixpkgs.legacyPackages.aarch64-darwin.alejandra;
     packages.aarch64-darwin.agenix = agenix "aarch64-darwin";
     packages.aarch64-darwin.default = self.packages.aarch64-darwin.agenix;
 
+    formatter.aarch64-linux = nixpkgs.legacyPackages.aarch64-linux.alejandra;
+    packages.aarch64-linux.agenix = agenix "aarch64-linux";
+    packages.aarch64-linux.default = self.packages.aarch64-linux.agenix;
+
+    formatter.i686-linux = nixpkgs.legacyPackages.i686-linux.alejandra;
+    packages.i686-linux.agenix = agenix "i686-linux";
+    packages.i686-linux.default = self.packages.i686-linux.agenix;
+
+    formatter.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.alejandra;
     packages.x86_64-linux.agenix = agenix "x86_64-linux";
     packages.x86_64-linux.default = self.packages.x86_64-linux.agenix;
     checks.x86_64-linux.integration = import ./test/integration.nix {