Replace auto-session with simple named-session commands

Drop the rmagatti/auto-session plugin (automatic cwd-keyed sessions
went unused). Add custom.sessions: :SessionWrite/:SessionRead/
:SessionDelete over plain :mksession files in <data>/sessions/, with
tab-completion and a picker fallback when no name is given.

lua/custom/init.lua

@@ -6,4 +6,5 @@ vim.o.sessionoptions = "blank,buffers,curdir,folds,help,tabpages,winsize,winpos,
 
 require "custom.language_specific_commands.cadquery"
 require "custom.git_quickpush"
+require "custom.sessions"
 print "Custom init settings loaded."

lua/custom/plugins.lua

@@ -90,38 +90,6 @@ local plugins = {
       return M
     end,
   },
-  {
-    "rmagatti/auto-session",
-    lazy = false,
-    keys = {
-      -- Will use Telescope if installed or a vim.ui.select picker otherwise
-      { "<leader>fs", "<cmd>AutoSession search<CR>", desc = "Session search" },
-      {
-        "<leader>ws",
-        function()
-          -- prompt for a session name using the built-in input function:
-          local session_name = vim.fn.input "Enter session name: "
-
-          -- optionally check if the user provided something
-          if session_name ~= nil and session_name ~= "" then
-            -- construct the command with the chosen name
-            vim.cmd("AutoSession save " .. session_name)
-          else
-            print "No session name given. Session not saved."
-          end
-        end,
-        desc = "Save session (prompts for name)",
-      },
-      { "<leader>wa", "<cmd>AutoSession ToggleAutoSave<CR>", desc = "Toggle autosave" },
-    },
-    ---enables autocomplete for opts
-    ---@module "auto-session"
-    ---@type AutoSession.Config
-    opts = {
-      suppressed_dirs = { "~/", "~/Projects", "~/Downloads", "/" },
-      root_dir = os.getenv "HOME" .. "/Documents/Dane's Vault/.sessions/",
-    },
-  },
   {
     "stevearc/conform.nvim",
     event = { "BufWritePre" },

lua/custom/sessions.lua

@@ -0,0 +1,89 @@
+-- Simple named-session management: write / read / delete.
+-- Sessions are plain :mksession files (so 'sessionoptions' governs content)
+-- stored under one directory. No automatic save/restore.
+
+local session_dir = vim.fs.normalize(vim.fn.stdpath "data") .. "/sessions/"
+vim.fn.mkdir(session_dir, "p")
+
+local function session_path(name)
+  return session_dir .. name .. ".vim"
+end
+
+local function list_sessions()
+  local names = {}
+  for _, path in ipairs(vim.fn.glob(session_dir .. "*.vim", true, true)) do
+    table.insert(names, vim.fn.fnamemodify(path, ":t:r"))
+  end
+  return names
+end
+
+local function write_session(name)
+  if name == "" then
+    name = vim.fn.input "Session name: "
+  end
+  if name == "" then
+    vim.notify("Session write aborted: no name given.", vim.log.levels.WARN)
+    return
+  end
+  vim.cmd("mksession! " .. vim.fn.fnameescape(session_path(name)))
+  vim.notify("Session saved: " .. name, vim.log.levels.INFO)
+end
+
+local function read_session(name)
+  local function load(n)
+    local path = session_path(n)
+    if vim.fn.filereadable(path) == 0 then
+      vim.notify("No session named: " .. n, vim.log.levels.ERROR)
+      return
+    end
+    vim.cmd("source " .. vim.fn.fnameescape(path))
+  end
+  if name ~= "" then
+    load(name)
+  else
+    vim.ui.select(list_sessions(), { prompt = "Load session:" }, function(choice)
+      if choice then
+        load(choice)
+      end
+    end)
+  end
+end
+
+local function delete_session(name)
+  local function del(n)
+    local path = session_path(n)
+    if vim.fn.filereadable(path) == 0 then
+      vim.notify("No session named: " .. n, vim.log.levels.ERROR)
+      return
+    end
+    vim.fn.delete(path)
+    vim.notify("Session deleted: " .. n, vim.log.levels.INFO)
+  end
+  if name ~= "" then
+    del(name)
+  else
+    vim.ui.select(list_sessions(), { prompt = "Delete session:" }, function(choice)
+      if choice then
+        del(choice)
+      end
+    end)
+  end
+end
+
+local function complete_sessions(arg_lead)
+  return vim.tbl_filter(function(name)
+    return name:find(arg_lead, 1, true) == 1
+  end, list_sessions())
+end
+
+vim.api.nvim_create_user_command("SessionWrite", function(o)
+  write_session(o.args)
+end, { nargs = "?", desc = "Write current session (prompts for name if omitted)" })
+
+vim.api.nvim_create_user_command("SessionRead", function(o)
+  read_session(o.args)
+end, { nargs = "?", complete = complete_sessions, desc = "Read a session (picker if name omitted)" })
+
+vim.api.nvim_create_user_command("SessionDelete", function(o)
+  delete_session(o.args)
+end, { nargs = "?", complete = complete_sessions, desc = "Delete a session (picker if name omitted)" })