l browser: refactor into browsers module

2 files changed, 88 insertions, 0 deletions

diff --git a/lass/3modules/browsers.nix b/lass/3modules/browsers.nix
new file mode 100644
index 00000000..ccb108f8
--- /dev/null
+++ b/lass/3modules/browsers.nix
@@ -0,0 +1,87 @@
+{ config, lib, pkgs, ... }:
+with import <stockholm/lib>;
+let
+
+  cfg = config.lass.browser;
+
+  browserScripts = {
+    chromium = "${pkgs.chromium}/bin/chromium";
+    firefox = "${pkgs.firefox.override {
+        extraNativeMessagingHosts = [ pkgs.tridactyl-native ];
+      }}/bin/firefox";
+    qutebrowser = "${pkgs.qutebrowser}/bin/qutebrowser";
+  };
+
+  browser-select = let
+    sortedPaths = sort (a: b: a.value.precedence > b.value.precedence)
+                       (mapAttrsToList (name: value: { inherit name value; })
+                                       cfg.config);
+  in if (lib.length sortedPaths) > 1 then
+    pkgs.writeScriptBin "browser-select" ''
+      BROWSER=$(echo -e "${concatStringsSep "\\n" (map (getAttr "name") sortedPaths)}" | ${pkgs.dmenu}/bin/dmenu)
+      case $BROWSER in
+      ${concatMapStringsSep "\n" (n: ''
+        ${n.name})
+          export BIN=${config.lass.xjail-bins.${n.name}}/bin/${n.name}
+          ;;
+      '') (sortedPaths)}
+      esac
+      $BIN "$@"
+    ''
+  else
+    let
+      name = (lib.head sortedPaths).name;
+    in pkgs.writeScriptBin "browser-select2" ''
+      ${config.lass.xjail-bins.${name}}/bin/${name} "$@"
+    ''
+  ;
+
+in {
+  options.lass.browser = {
+    select = mkOption {
+      type = types.path;
+    };
+    config = mkOption {
+      type = types.attrsOf (types.submodule ({ config, ... }: {
+        options = {
+          name = mkOption {
+            type = types.str;
+            default = config._module.args.name;
+          };
+          precedence = mkOption {
+            type = types.int;
+            default = 0;
+          };
+          user = mkOption {
+            type = types.str;
+            default = config._module.args.name;
+          };
+          browser = mkOption {
+            type = types.enum (attrNames browserScripts);
+            default = "chromium";
+          };
+          groups = mkOption {
+            type = types.listOf types.str;
+            default = [];
+          };
+        };
+      }));
+      default = {};
+    };
+  };
+
+  config = (mkIf (cfg.config != {}) {
+    lass.xjail = mapAttrs' (name: browser:
+      nameValuePair name {
+        script = browserScripts.${browser.browser};
+        groups = browser.groups;
+      }
+    ) cfg.config;
+    environment.systemPackages = (map (browser:
+      config.lass.xjail-bins.${browser.name}
+    ) (attrValues cfg.config))  ++ [
+      browser-select
+    ];
+    lass.browser.select = browser-select;
+  });
+}
diff --git a/lass/3modules/default.nix b/lass/3modules/default.nix
index 1195cd3d..90dcb9d9 100644
--- a/lass/3modules/default.nix
+++ b/lass/3modules/default.nix
@@ -15,5 +15,6 @@ _:
     ./usershadow.nix
     ./xjail.nix
     ./autowifi.nix
+    ./browsers.nix
   ];
 }