Add Nix flake

.gitignore

@@ -0,0 +1,3 @@
+/.envrc
+/result
+/.direnv/

Makefile

@@ -35,6 +35,8 @@ lint:
 	$(MAKE) -C test lint
 
 test:
-	$(MAKE) -C test
+	$(MAKE) -C test all
 
-.PHONY: install uninstall lint test
+check: lint test
+
+.PHONY: install uninstall lint test check

flake.lock

@@ -0,0 +1,40 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1642700792,
+        "narHash": "sha256-XqHrk7hFb+zBvRg6Ghl+AZDq03ov6OshJLiSWOoX5es=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "846b2ae0fc4cc943637d3d1def4454213e203cba",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1642281915,
+        "narHash": "sha256-jcMsXmmO1knyf99o242A+2cy1A0eKa9afly0cwBknPA=",
+        "path": "/nix/store/1q3bx2vjp4afq1wglhxgva9rhs69k8ri-source",
+        "rev": "d5dae6569ea9952f1ae4e727946d93a71c507821",
+        "type": "path"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,58 @@
+{
+  description = "A pass extension for managing one-time-password (OTP) tokens";
+
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let pkgs = nixpkgs.legacyPackages.${system}; in
+      {
+        defaultPackage = with pkgs; stdenv.mkDerivation {
+          pname = "pass-otp";
+          version = "unstable";
+          src = ./.;
+
+          buildInputs = [ oathToolkit ];
+
+          checkInputs = [
+            bash
+            expect
+            git
+            gnumake
+            gnupg
+            pass
+            shellcheck
+            which
+          ];
+
+          dontBuild = true;
+          doCheck = true;
+
+          patchPhase = ''
+            sed -i -e 's|OATH=\$(which oathtool)|OATH=${oathToolkit}/bin/oathtool|' otp.bash
+          '';
+
+          checkPhase = ''
+            make SHELL=$SHELL check
+          '';
+
+          installFlags = [
+            "PREFIX=$(out)"
+            "BASHCOMPDIR=$(out)/share/bash-completions/completions"
+          ];
+
+          meta = with lib; {
+            description = "A pass extension for managing one-time-password (OTP) tokens";
+            homepage = "https://github.com/tadfisher/pass-otp";
+            license = licenses.gpl3;
+            maintainers = with maintainers; [ tadfisher ];
+            platforms = platforms.unix;
+          };
+        };
+
+        checks.pass-otp = self.defaultPackage.${system};
+      }
+    );
+}