feat(plugins): add resession

plugins/resession/default.nix

@@ -0,0 +1,100 @@
+# homepage: https://github.com/stevearc/resession.nvim
+{ lib, pkgs, ... }:
+
+{
+  extra = {
+    packages = [
+      (import ./package.nix { inherit lib pkgs; })
+    ];
+
+    # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/resession.lua#L45-L49
+    config = ''
+      require("resession").setup({
+        buf_filter = function(bufnr) return require("astrocore.buffer").is_restorable(bufnr) end,
+        tab_buf_filter = function(tabpage, bufnr) return vim.tbl_contains(vim.t[tabpage].bufs, bufnr) end,
+        extensions = { astrocore = { enable_in_tab = true } },
+      })
+    '';
+  };
+
+  rootOpts = {
+    autoGroups.resession = { };
+    autoCmd = [
+      {
+        desc = "Save session on close";
+        event = "VimLeavePre";
+        group = "resession";
+
+        # https://github.com/AstroNvim/AstroNvim/blob/v4.7.7/lua/astronvim/plugins/resession.lua#L31-L39
+        callback.__raw = ''
+          function()
+            local buf_utils = require "astrocore.buffer"
+            local autosave = buf_utils.sessions.autosave
+            if autosave and buf_utils.is_valid_session() then
+              local save = require("resession").save
+              if autosave.last then save("last", { notify = false }) end
+              if autosave.cwd then save(vim.fn.getcwd(), { dir = "dirsession", notify = false }) end
+            end
+          end
+        '';
+      }
+    ];
+
+    keymaps = [
+      {
+        mode = "n";
+        key = "<leader>Sl";
+        action.__raw = "function() require('resession').load 'last' end";
+        options.desc = "Load last session";
+      }
+      {
+        mode = "n";
+        key = "<leader>Ss";
+        action.__raw = "function() require('resession').save() end";
+        options.desc = "Save this session";
+      }
+      {
+        mode = "n";
+        key = "<leader>SS";
+        action.__raw = "function() require('resession').save(vim.fn.getcwd(), { dir = 'dirsession' }) end";
+        options.desc = "Save this dirsession";
+      }
+      {
+        mode = "n";
+        key = "<leader>St";
+        action.__raw = "function() require('resession').save_tab() end";
+        options.desc = "Save this tab's session";
+      }
+      {
+        mode = "n";
+        key = "<leader>Sd";
+        action.__raw = "function() require('resession').delete() end";
+        options.desc = "Delete a session";
+      }
+      {
+        mode = "n";
+        key = "<leader>SD";
+        action.__raw = "function() require('resession').delete(nil, { dir = 'dirsession' }) end";
+        options.desc = "Delete a dirsession";
+      }
+      {
+        mode = "n";
+        key = "<leader>Sf";
+        action.__raw = "function() require('resession').load() end";
+        options.desc = "Load a session";
+      }
+      {
+        mode = "n";
+        key = "<leader>SF";
+        action.__raw = "function() require('resession').load(nil, { dir = 'dirsession' }) end";
+        options.desc = "Load a dirsession";
+      }
+      {
+        mode = "n";
+        key = "<leader>S.";
+        action.__raw = "function() require('resession').load(vim.fn.getcwd(), { dir = 'dirsession' }) end";
+        options.desc = "Load current dirsession";
+      }
+    ];
+  };
+}

plugins/resession/package.nix

@@ -0,0 +1,17 @@
+{ pkgs, ... }:
+
+let
+  version = "1.2.1";
+in
+pkgs.vimUtils.buildVimPlugin {
+  inherit version;
+
+  name = "resession-nvim";
+
+  src = pkgs.fetchFromGitHub {
+    owner = "stevearc";
+    repo = "resession.nvim";
+    rev = "v${version}";
+    hash = "sha256-GXKDuKDMcfl1SHTTdUFdWuWbtq6TDtk0GsyI3fAc1vE=";
+  };
+}