Merge 4d289d16b3f619e12b62b8971db6818c420e39eb into 6e137fe9a3ee215f82a46a05e77be51ac17151f7

after/ftplugin/json.vim

@@ -1,6 +1,2 @@
 " let the initial folding state be that all folds are closed.
-set foldlevel=0
-
-" Use nvim-treesitter for folding
-set foldmethod=expr
-set foldexpr=nvim_treesitter#foldexpr()
+setlocal foldlevel=0

lua/config/ufo.lua

@@ -0,0 +1,22 @@
+local keymap = vim.keymap
+
+-- disable foldcolumn, see https://github.com/kevinhwang91/nvim-ufo/issues/4
+vim.o.foldcolumn = '0'
+vim.o.foldlevel = 99 -- Using ufo provider need a large value, feel free to decrease the value
+vim.o.foldlevelstart = 99
+vim.o.foldenable = true -- Don't set nofoldenable in ftplugin
+
+-- treesitter as a main provider instead
+-- Only depend on `nvim-treesitter/queries/filetype/folds.scm`,
+-- performance and stability are better than `foldmethod=nvim_treesitter#foldexpr()`
+require('ufo').setup({
+    provider_selector = function(bufnr, filetype, buftype)
+        return {'treesitter', 'indent'}
+    end
+})
+
+local ufo = require('ufo')
+keymap.set('n', 'zR', ufo.openAllFolds, { desc = 'Open all folds' })
+keymap.set('n', 'zM', ufo.closeAllFolds, { desc = 'Close all folds' })
+keymap.set('n', 'zr', ufo.openFoldsExceptKinds, { desc = 'Fold less' })
+keymap.set('n', 'zm', ufo.closeFoldsWith, { desc = 'Fold more' })

lua/plugin_specs.lua

@@ -56,7 +56,7 @@ local plugin_specs = {
   {
     "nvim-treesitter/nvim-treesitter",
     enabled = function()
-      if vim.g.is_mac then
+      if vim.g.is_mac or vim.g.is_linux then
         return true
       end
       return false
@@ -495,6 +495,14 @@ local plugin_specs = {
       require("config.fidget-nvim")
     end,
   },
+  {
+    'kevinhwang91/nvim-ufo',
+    dependencies = {'kevinhwang91/promise-async'},
+    event = { "VeryLazy" },
+    config = function()
+      require("config.ufo")
+    end
+  }
 }
 
 -- configuration for lazy itself.