neovim: add comment.nvim plugin

neovim/.config/nvim/after/plugin/comment.lua

@@ -0,0 +1,25 @@
+require("Comment").setup({
+  pre_hook = function(ctx)
+    -- Only calculate commentstring for tsx filetypes
+    if vim.bo.filetype == "typescriptreact" or vim.bo.filetype == "javascriptreact" then
+      local U = require("Comment.utils")
+
+      -- Detemine whether to use linewise or blockwise commentstring
+      -- local type = ctx.ctype == U.ctype.line and "__default" or "__multiline"
+      local type = "__default"
+
+      -- Determine the location where to calculate commentstring from
+      local location = nil
+      if ctx.ctype == U.ctype.block then
+        location = require("ts_context_commentstring.utils").get_cursor_location()
+      elseif ctx.cmotion == U.cmotion.v or ctx.cmotion == U.cmotion.V then
+        location = require("ts_context_commentstring.utils").get_visual_start_location()
+      end
+
+      return require("ts_context_commentstring.internal").calculate_commentstring({
+        key = type,
+        location = location,
+      })
+    end
+  end,
+})