neovim: add formatting module

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

@@ -24,6 +24,10 @@ null_ls.setup({
       pattern = "*",
       group = group,
       callback = function()
+        if not require("formatting").is_enabled(vim.api.nvim_get_current_buf()) then
+          return
+        end
+
         vim.lsp.buf.format({
           filter = function(client)
             return not vim.tbl_contains(servers_with_annoying_formatters, client.name)

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

@@ -1,5 +1,6 @@
 local lualine = require("lualine")
 local devicons = require("nvim-web-devicons")
+local formatting = require("formatting")
 
 local mode = {
   "mode",
@@ -22,6 +23,17 @@ local relative_filename = {
   path = 1,
 }
 
+local formatting_status = {
+  function()
+    local is_formatting_enabled = formatting.is_enabled(vim.api.nvim_get_current_buf())
+    if is_formatting_enabled then
+      return "[f+]"
+    else
+      return "[f-]"
+    end
+  end,
+}
+
 local searchcount = {
   "searchcount",
 }
@@ -128,7 +140,7 @@ lualine.setup({
     lualine_a = { mode },
     lualine_b = { branch },
     lualine_c = { diagnostics, relative_filename },
-    lualine_x = { macro_recording, searchcount, location, tabstop, fileformat },
+    lualine_x = { macro_recording, searchcount, formatting_status, location, tabstop, fileformat },
     lualine_y = { filetype },
     lualine_z = {},
   },