feat: add codecompanion

Signed-off-by: Lander Van den Bulcke <landervandenbulcke@gmail.com>

packages/default.nix

@@ -21,6 +21,7 @@ let
   coreModules = bareModules ++ [
     self.myvimPlugins.autosession
     self.myvimPlugins.blink-cmp
+    self.myvimPlugins.codecompanion
     self.myvimPlugins.git
     self.myvimPlugins.lang
     self.myvimPlugins.lsp

plugins/codecompanion.nix

@@ -0,0 +1,56 @@
+{ pkgs, ... }:
+{
+  plugins.codecompanion = {
+    enable = true;
+
+    settings = {
+      adapters = {
+        acp = {
+          gemini_cli = {
+            __raw = ''
+              lua
+                            function()
+                              return require("codecompanion.adapters").extend("gemini_cli", {
+                                commands = {
+                                  default = {
+                                    "gemini",
+                                    "--debug",
+                                    "--experimental-acp",
+                                  },
+                                },
+                              })
+                            end
+            '';
+          };
+        };
+      };
+
+      display = {
+        action_palette = {
+          opts = {
+            show_default_prompt_library = true;
+          };
+          provider = "default";
+        };
+        chat = {
+          window = {
+            layout = "vertical";
+            opts = {
+              breakindent = true;
+            };
+          };
+        };
+      };
+
+      strategies = {
+        agent.adapter = "gemini_cli";
+        chat.adapter = "gemini_cli";
+        inline.adapter = "gemini_cli";
+      };
+    };
+  };
+
+  extraPackages = with pkgs; [
+    gemini-cli
+  ];
+}