From 798cc3cde7c79dac4c65e6a47d6d582a7bad3ef5 Mon Sep 17 00:00:00 2001
From: Kim Gert Nielsen <kn@insecurity.dk>
Date: Fri, 31 May 2024 22:05:23 +0200
Subject: [PATCH] feat: close 'no name' buffer when running open_all

---
 README.md            | 12 ++++++++++++
 lua/marlin/init.lua  |  2 ++
 lua/marlin/utils.lua | 22 ++++++++++++++++++++++
 3 files changed, 36 insertions(+)

diff --git a/README.md b/README.md
index 5cb4bba..e1712aa 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,18 @@ Example using the lazy plugin manager
 }
 ```
 
+If you want to restore the 'session' it can be done via autocmd like
+
+```lua
+vim.api.nvim_create_autocmd("VimEnter", {
+    group = vim.api.nvim_create_augroup("restore_marlin", { clear = true }),
+    callback = function()
+        require("marlin").open_all()
+    end,
+    nested = true,
+})
+```
+
 ### Default configuration
 
 ```lua
diff --git a/lua/marlin/init.lua b/lua/marlin/init.lua
index c590576..71a11a6 100644
--- a/lua/marlin/init.lua
+++ b/lua/marlin/init.lua
@@ -340,6 +340,8 @@ end
 ---
 ---@usage `require('marlin').open_all()`
 marlin.open_all = function(opts)
+    utils.delete_no_name_buffer()
+
     opts = opts or {}
     local marlinopen = marlin.open
     for idx, _ in ipairs(marlin.get_indexes()) do
diff --git a/lua/marlin/utils.lua b/lua/marlin/utils.lua
index 49b31bd..fcd1e01 100644
--- a/lua/marlin/utils.lua
+++ b/lua/marlin/utils.lua
@@ -44,4 +44,26 @@ M.load_buffer = function(filename)
     return bufnr, set_position
 end
 
+M.is_no_name_buf = function(buf)
+    local opts = { buf = buf }
+    return vim.api.nvim_buf_is_loaded(buf)
+        and vim.api.nvim_buf_get_name(buf) == ""
+        and vim.api.nvim_get_option_value("buflisted", opts)
+        and vim.api.nvim_get_option_value("buftype", opts) == ""
+        and vim.api.nvim_get_option_value("filetype", opts) == ""
+end
+
+M.delete_no_name_buffer = function()
+    local curbuffers = vim.api.nvim_list_bufs()
+
+    if #curbuffers == 1 then
+        local bufid = curbuffers[1]
+        if M.is_no_name_buf(bufid) then
+            vim.schedule(function()
+                vim.api.nvim_buf_delete(bufid, { force = true })
+            end)
+        end
+    end
+end
+
 return M