WIP

lib/icons/default.nix

@@ -0,0 +1,10 @@
+_: {
+  icons = {
+    diagnostics = {
+      error = " ";
+      warn = " ";
+      hint = " ";
+      info = " ";
+    };
+  };
+}

modules/nixvim/plugins/ui/bufferline/default.nix

@@ -0,0 +1,73 @@
+{
+  lib,
+  helpers,
+  ...
+}: let
+  inherit (helpers) mkRaw;
+  inherit (lib) flatten mapAttrsToList map;
+  inherit (lib.marleyvim) icons keys;
+in {
+  plugins.bufferline = {
+    enable = true;
+
+    settings = {
+      options = {
+        close_command =
+          mkRaw
+          # lua
+          "function(n) Snacks.bufdelete(n) end";
+        right_mouse_command =
+          mkRaw
+          # lua
+          "function(n) Snacks.bufdelete(n) end";
+
+        diagnostics = "nvim_lsp";
+        diagnostics_indicator =
+          mkRaw
+          # lua
+          ''
+            function(_, _, diag)
+              local ret = (diag.error and "${icons.diagnostics.error}" .. diag.error .. " " or "")
+                .. (diag.warning and "${icons.diagnostics.warn}" .. diag.warning or "")
+              return vim.trim(ret)
+            end
+          '';
+      };
+    };
+  };
+
+  keymaps =
+    [
+      (keys.mk ["n"] "<LEADER>bp" "<CMD>BufferLineTogglePin<CR>" "Toggle Pin")
+      (keys.mk ["n"] "<LEADER>bP" "<CMD>BufferLineGroupClose ungrouped<CR>"
+        "Delete Non-Pinned Buffers")
+      (keys.mk ["n"] "<LEADER>br" "<CMD>BufferLineCloseRight<CR>"
+        "Delete Buffers to the Right")
+      (keys.mk ["n"] "<LEADER>bl" "<CMD>BufferLineCloseLeft<CR>"
+        "Delete Buffers to the Left")
+      (keys.mk ["n"] "<S-H>" "<CMD>BufferLineCyclePrev<CR>" "Prev Buffer")
+      (keys.mk ["n"] "<S-L>" "<CMD>BufferLineCycleNext<CR>" "Next Buffer")
+    ]
+    ++ (flatten (mapAttrsToList (
+        a: ks:
+          map (k: keys.mk ["n"] k "<CMD>BufferLineCycle${a}<CR>" "${a} Buffer") ks
+      ) {
+        Prev = ["<S-H>" "[b"];
+        Next = ["<S-L>" "]b"];
+      }))
+    ++ (
+      mapAttrsToList (
+        a: k: let
+          befAft =
+            if (a == "Prev")
+            then "After"
+            else "Before";
+        in
+          keys.mk ["n"] "${k}B" "<CMD>BufferLineMove${a}<CR>"
+          "Move Buffer ${befAft} ${a}"
+      ) {
+        Prev = "[";
+        After = "]";
+      }
+    );
+}