mzte-nv: load plugins in chunked event loop callbacks

TODO: move into MZTE-NV with libUV idler

mzte-nv/conf/lua/pluginconf/p-nvimtree.fnl

@@ -7,16 +7,5 @@
                      :ignore false}
                :renderer {:indent_markers {:enable true} :group_empty true}})
 
-;; open on startup
-(fn on-enter [data]
-  (local is-no-name (and (= data.file "") (= (. vim :bo data.buf :buftype) "")))
-  (local is-dir (= (vim.fn.isdirectory data.file) 1))
-  (when is-dir
-    (vim.cmd.cd data.file))
-  (when (or is-no-name is-dir)
-    ((. (require :nvim-tree.api) :tree :open))))
-
-(vim.api.nvim_create_autocmd [:VimEnter] {:callback on-enter})
-
 (vim.keymap.set :n :TT #((. (require :nvim-tree.api) :tree :toggle))
                 (. (require :mzte_nv) :utils :map_opt))

mzte-nv/conf/lua/pluginconf/p-telescope.fnl

@@ -34,7 +34,7 @@
     (tset opt k v))
   `(do
      (nmap ,(.. :g suffix) ,action ,opt)
-     (nmap ,(.. :gt suffix) ,action
+     (nmap ,(.. :gn suffix) ,action
            ,(doto (collect [k v (pairs opt)] k v)
               (tset :jump_type :tab)))
      (nmap ,(.. :gs suffix) ,action

mzte-nv/conf/lua/plugins.fnl

@@ -1,38 +1,61 @@
 (local mztenv (require :mzte_nv))
 
+(tset mztenv.reg :plugin_load_callbacks [])
+
 (let [path mztenv.reg.nvim_plugins]
   (when path
     (vim.opt.runtimepath:append (.. path "/*"))))
 
-(let [plugins [:lspconf
-               :cmp
-               :luasnip
-               :nullls
-               :catppuccin
-               :line
-               :treesitter
-               :devicons
-               :nvimtree
-               :neogit
-               :telescope
-               :autopairs
-               :tterm
-               :ts-context
-               :ufo
-               :aerial
-               :dap
-               :harpoon
-               :recorder
-               :noice
-               :tsn-actions
-               :lightbulb
-               :dressing]
-      errors {}]
-  (each [_ p (ipairs plugins)]
-    (let [(success ret) (pcall require (.. :pluginconf/p- p))]
-      (when (not success)
-        (tset errors p ret))))
-  (when (next errors)
-    (vim.notify (accumulate [text "Errors loading plugin configs:\n" plugin err (pairs errors)]
-                  (.. text "  - " plugin ": " err))
-                vim.log.levels.error)))
+;; Plugins to load before nvim finishes startup
+(local startup-plugins [])
+
+;; Plugins to load in the background
+(local deferred-plugins [:lspconf
+                         :cmp
+                         :luasnip
+                         :nullls
+                         :catppuccin
+                         :line
+                         :treesitter
+                         :nvimtree
+                         :devicons
+                         :neogit
+                         :telescope
+                         :autopairs
+                         :tterm
+                         :ts-context
+                         :ufo
+                         :aerial
+                         :dap
+                         :harpoon
+                         :recorder
+                         :noice
+                         :tsn-actions
+                         :lightbulb
+                         :dressing])
+
+(local errors {})
+
+(fn load-plugin [plugin]
+  (let [(success ret) (pcall require (.. :pluginconf/p- plugin))]
+    (when (not success)
+      (tset errors p ret))))
+
+(each [_ p (ipairs startup-plugins)]
+  (load-plugin p))
+
+(fn load-one-deferred [idx]
+  (let [plugin (. deferred-plugins idx)]
+    (if plugin
+        (do
+          (load-plugin plugin)
+          (vim.schedule #(load-one-deferred (+ idx 1))))
+        (do
+          (when (next errors)
+            (vim.notify (accumulate [text "Errors loading plugin configs:\n" plugin err (pairs errors)]
+                          (.. text "  - " plugin ": " err))
+                        vim.log.levels.error))
+          (each [_ cb (ipairs mztenv.reg.plugin_load_callbacks)]
+            (pcall cb))))))
+
+(vim.schedule #(load-one-deferred 1))