build: store default configuration in repo and ensure freshness

3 files changed, 176 insertions, 8 deletions

diff --git a/defaults.toml b/defaults.toml
new file mode 100644
index 0000000..a39b592
--- /dev/null
+++ b/defaults.toml
@@ -0,0 +1,143 @@
+DataPath = './data'
+LogLevel = 'INFO'
+
+[Web]
+ListenAddress = 'localhost'
+Port = 3000
+SentryDSN = ''
+Environment = 'development'
+ExtraHeadHTML = ''
+
+[Web.ContentSecurityPolicy]
+base-uri = []
+block-all-mixed-content = false
+child-src = []
+connect-src = []
+default-src = ["'self'"]
+font-src = []
+form-action = []
+frame-ancestors = []
+frame-src = []
+img-src = []
+manifest-src = []
+media-src = []
+navigate-to = []
+object-src = []
+plugin-types = []
+prefetch-src = []
+referrer = ''
+report-to = ''
+report-uri = ''
+require-sri-for = []
+require-trusted-types-for = []
+sandbox = ''
+script-src = []
+script-src-attr = []
+script-src-elem = []
+style-src = []
+style-src-attr = []
+style-src-elem = []
+trusted-types = []
+upgrade-insecure-requests = false
+worker-src = []
+
+[Web.BaseURL]
+Scheme = 'http'
+Opaque = ''
+Host = 'localhost:3000'
+Path = ''
+RawPath = ''
+OmitHost = false
+ForceQuery = false
+RawQuery = ''
+Fragment = ''
+RawFragment = ''
+
+[Web.Headers]
+x-content-type-options = 'nosniff'
+
+[Importer]
+UpdateAt = 04:00:00
+
+[Importer.Sources]
+[Importer.Sources.darwin]
+Name = 'Darwin'
+Key = 'darwin'
+Enable = false
+Fetcher = 1
+Importer = 2
+Channel = 'darwin'
+URL = 'https://github.com/LnL7/nix-darwin/archive/master.tar.gz'
+Attribute = 'options'
+ImportPath = 'release.nix'
+FetchTimeout = 300000000000
+ImportTimeout = 900000000000
+OutputPath = 'share/doc/darwin'
+
+[Importer.Sources.darwin.Repo]
+Type = 'github'
+Owner = 'LnL7'
+Repo = 'nix-darwin'
+Revision = ''
+
+[Importer.Sources.home-manager]
+Name = 'Home Manager'
+Key = 'home-manager'
+Enable = false
+Fetcher = 1
+Importer = 2
+Channel = 'home-manager'
+URL = 'https://github.com/nix-community/home-manager/archive/master.tar.gz'
+Attribute = 'docs.json'
+ImportPath = 'default.nix'
+FetchTimeout = 300000000000
+ImportTimeout = 900000000000
+OutputPath = 'share/doc/home-manager'
+
+[Importer.Sources.home-manager.Repo]
+Type = 'github'
+Owner = 'nix-community'
+Repo = 'home-manager'
+Revision = ''
+
+[Importer.Sources.nixos]
+Name = 'NixOS'
+Key = 'nixos'
+Enable = true
+Fetcher = 1
+Importer = 2
+Channel = 'nixpkgs'
+URL = 'https://channels.nixos.org/nixos-unstable/nixexprs.tar.xz'
+Attribute = 'options'
+ImportPath = 'nixos/release.nix'
+FetchTimeout = 300000000000
+ImportTimeout = 900000000000
+OutputPath = 'share/doc/nixos'
+
+[Importer.Sources.nixos.Repo]
+Type = 'github'
+Owner = 'NixOS'
+Repo = 'nixpkgs'
+Revision = ''
+
+[Importer.Sources.nixpkgs]
+Name = 'Nix Packages'
+Key = 'nixpkgs'
+Enable = true
+Fetcher = 2
+Importer = 1
+Channel = 'nixos-unstable'
+URL = ''
+Attribute = ''
+ImportPath = ''
+FetchTimeout = 300000000000
+ImportTimeout = 900000000000
+OutputPath = 'packages.json.br'
+
+[Importer.Sources.nixpkgs.Repo]
+Type = 'github'
+Owner = 'NixOS'
+Repo = 'nixpkgs'
+Revision = ''
+
+[Importer.Timeout]
diff --git a/nix/modules/default.nix b/nix/modules/default.nix
index 7d06957..093840b 100644
--- a/nix/modules/default.nix
+++ b/nix/modules/default.nix
@@ -6,10 +6,13 @@ flake:
 }:
 
 let
+  inherit (builtins) fromTOML readFile;
   cfg = config.services.searchix;
 
   package = flake.packages.${pkgs.system}.default;
 
+  defaults = fromTOML (readFile ../../defaults.toml);
+
   settingsFormat = pkgs.formats.toml { };
 
   defaultServiceConfig = {
@@ -120,6 +123,20 @@ in
                   description = "Optionally enable sentry to track errors.";
                   default = "";
                 };
+
+                contentSecurityPolicy = mkOption {
+                  type = types.submodule {
+                    freeformType = settingsFormat.type;
+                  };
+                  description = "Control resources a browser should be allowed to load.";
+                  default = defaults.Web.ContentSecurityPolicy;
+                };
+
+                headers = mkOption {
+                  type = with types; attrsOf str;
+                  description = "HTTP Headers to send with every request. Case-insensitive.";
+                  default = defaults.Web.Headers;
+                };
               };
             };
           };
@@ -140,7 +157,7 @@ in
 
                 updateAt = mkOption {
                   type = types.strMatching "[[:digit:]]{2}:[[:digit:]]{2}:[[:digit:]]{2}";
-                  default = "04:00:00";
+                  default = defaults.Importer.UpdateAt;
                   example = "02:00:00";
                   description = "Time of day to fetch and import new options.";
                 };
@@ -150,15 +167,9 @@ in
                     attrsOf (submodule (import ./source-options.nix {
                       inherit cfg settingsFormat;
                     }));
-                  default = {
-                    nixos.enable = true;
-                    nixpkgs.enable = true;
-                    darwin.enable = false;
-                    home-manager.enable = false;
-                  };
+                  default = defaults.Importer.Sources;
                   description = "Declarative specification of options sources for searchix.";
                 };
-
               };
             };
           };
diff --git a/nix/pre-commit-checks.nix b/nix/pre-commit-checks.nix
index bd6df7c..4858783 100644
--- a/nix/pre-commit-checks.nix
+++ b/nix/pre-commit-checks.nix
@@ -91,5 +91,19 @@ rec {
       entry = "${pkgs.gomod2nix}/bin/gomod2nix";
       pass_filenames = false;
     };
+
+    generate-default-config = {
+      enable = true;
+      name = "generate-default-config";
+      description = "Ensure default configuration file is up-to-date";
+      files = "config.go$";
+      entry =
+        let
+          script = pkgs.writeShellScript "generate-default-config" ''
+            ${pkgs.wgo}/bin/wgo run -exit searchix.go --print-default-config > defaults.toml
+          '';
+        in
+        builtins.toString script;
+    };
   };
 }