feat: witryna 0.2.0HEADv0.2.0main

Switch, cleanup, and status CLI commands. Persistent build state via
state.json. Post-deploy hooks on success and failure with
WITRYNA_BUILD_STATUS. Dependency diet (axum→tiny_http, clap→argh,
tracing→log). Drop built-in rate limiting. Nix flake with NixOS module.
Arch Linux PKGBUILD. Centralized version management.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/nix/module.nix b/nix/module.nix
new file mode 100644
index 0000000..6299ad9
--- /dev/null
+++ b/nix/module.nix
@@ -0,0 +1,68 @@
+flake: { config, lib, pkgs, ... }:
+let
+  cfg = config.services.witryna;
+in
+{
+  options.services.witryna = {
+    enable = lib.mkEnableOption "witryna deployment service";
+
+    package = lib.mkOption {
+      type = lib.types.package;
+      default = flake.packages.${pkgs.stdenv.hostPlatform.system}.witryna;
+      description = "The witryna package to use.";
+    };
+
+    configFile = lib.mkOption {
+      type = lib.types.path;
+      description = "Path to witryna.toml configuration file.";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    users.users.witryna = {
+      isSystemUser = true;
+      group = "witryna";
+      home = "/var/lib/witryna";
+    };
+    users.groups.witryna = {};
+
+    systemd.tmpfiles.rules = [
+      "d /var/lib/witryna        0755 witryna witryna -"
+      "d /var/lib/witryna/clones 0755 witryna witryna -"
+      "d /var/lib/witryna/builds 0755 witryna witryna -"
+      "d /var/lib/witryna/cache  0755 witryna witryna -"
+      "d /var/log/witryna        0755 witryna witryna -"
+    ];
+
+    systemd.services.witryna = {
+      description = "Witryna - Git-based static site deployment orchestrator";
+      after = [ "network-online.target" ];
+      wants = [ "network-online.target" ];
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig = {
+        Type = "simple";
+        User = "witryna";
+        Group = "witryna";
+        ExecStart = "${cfg.package}/bin/witryna serve --config ${cfg.configFile}";
+        ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";
+        Restart = "on-failure";
+        RestartSec = 5;
+        # Security hardening (mirrors debian/witryna.service)
+        NoNewPrivileges = true;
+        PrivateTmp = true;
+        ProtectSystem = "strict";
+        ProtectKernelTunables = true;
+        ProtectKernelModules = true;
+        ProtectControlGroups = true;
+        RestrictNamespaces = true;
+        RestrictRealtime = true;
+        RestrictSUIDSGID = true;
+        LockPersonality = true;
+        MemoryDenyWriteExecute = true;
+        ReadWritePaths = [ "/var/lib/witryna" "/var/log/witryna" "/run/user" ];
+        LimitNOFILE = 65536;
+        LimitNPROC = 4096;
+      };
+    };
+  };
+}