chore: Use paranthesis for function calls. No paran can trip new lua users

.stylua.toml

@@ -1,4 +1,4 @@
 indent_type = "Spaces"
 indent_width = 2
 quote_style = "AutoPreferSingle"
-no_call_parentheses = true
+no_call_parentheses = false

examples/bubbles.lua

@@ -31,7 +31,7 @@ local bubbles_theme = {
   },
 }
 
-require('lualine').setup {
+require('lualine').setup({
   options = {
     theme = bubbles_theme,
     component_separators = '|',
@@ -59,4 +59,4 @@ require('lualine').setup {
   },
   tabline = {},
   extensions = {},
-}
+})

examples/evil_lualine.lua

@@ -1,7 +1,7 @@
 -- Eviline config for lualine
 -- Author: shadmansaleh
 -- Credit: glepnir
-local lualine = require 'lualine'
+local lualine = require('lualine')
 
 -- Color table for highlights
 -- stylua: ignore
@@ -21,13 +21,13 @@ local colors = {
 
 local conditions = {
   buffer_not_empty = function()
-    return vim.fn.empty(vim.fn.expand '%:t') ~= 1
+    return vim.fn.empty(vim.fn.expand('%:t')) ~= 1
   end,
   hide_in_width = function()
     return vim.fn.winwidth(0) > 80
   end,
   check_git_workspace = function()
-    local filepath = vim.fn.expand '%:p:h'
+    local filepath = vim.fn.expand('%:p:h')
     local gitdir = vim.fn.finddir('.git', filepath .. ';')
     return gitdir and #gitdir > 0 and #gitdir < #filepath
   end,
@@ -78,15 +78,15 @@ local function ins_right(component)
   table.insert(config.sections.lualine_x, component)
 end
 
-ins_left {
+ins_left({
   function()
     return '▊'
   end,
   color = { fg = colors.blue }, -- Sets highlighting of component
   padding = { left = 0, right = 1 }, -- We don't need space before this
-}
+})
 
-ins_left {
+ins_left({
   -- mode component
   function()
     -- auto change color according to neovims mode
@@ -117,25 +117,25 @@ ins_left {
   end,
   color = 'LualineMode',
   padding = { right = 1 },
-}
+})
 
-ins_left {
+ins_left({
   -- filesize component
   'filesize',
   cond = conditions.buffer_not_empty,
-}
+})
 
-ins_left {
+ins_left({
   'filename',
   cond = conditions.buffer_not_empty,
   color = { fg = colors.magenta, gui = 'bold' },
-}
+})
 
-ins_left { 'location' }
+ins_left({ 'location' })
 
-ins_left { 'progress', color = { fg = colors.fg, gui = 'bold' } }
+ins_left({ 'progress', color = { fg = colors.fg, gui = 'bold' } })
 
-ins_left {
+ins_left({
   'diagnostics',
   sources = { 'nvim_diagnostic' },
   symbols = { error = ' ', warn = ' ', info = ' ' },
@@ -144,17 +144,17 @@ ins_left {
     color_warn = { fg = colors.yellow },
     color_info = { fg = colors.cyan },
   },
-}
+})
 
 -- Insert mid section. You can make any number of sections in neovim :)
 -- for lualine it's any number greater then 2
-ins_left {
+ins_left({
   function()
     return '%='
   end,
-}
+})
 
-ins_left {
+ins_left({
   -- Lsp server name .
   function()
     local msg = 'No Active Lsp'
@@ -173,30 +173,30 @@ ins_left {
   end,
   icon = ' LSP:',
   color = { fg = '#ffffff', gui = 'bold' },
-}
+})
 
 -- Add components to right sections
-ins_right {
+ins_right({
   'o:encoding', -- option component same as &encoding in viml
   fmt = string.upper, -- I'm not sure why it's upper case either ;)
   cond = conditions.hide_in_width,
   color = { fg = colors.green, gui = 'bold' },
-}
+})
 
-ins_right {
+ins_right({
   'fileformat',
   fmt = string.upper,
   icons_enabled = false, -- I think icons are cool but Eviline doesn't have them. sigh
   color = { fg = colors.green, gui = 'bold' },
-}
+})
 
-ins_right {
+ins_right({
   'branch',
   icon = '',
   color = { fg = colors.violet, gui = 'bold' },
-}
+})
 
-ins_right {
+ins_right({
   'diff',
   -- Is it me or the symbol for modified us really weird
   symbols = { added = ' ', modified = '柳 ', removed = ' ' },
@@ -206,15 +206,15 @@ ins_right {
     removed = { fg = colors.red },
   },
   cond = conditions.hide_in_width,
-}
+})
 
-ins_right {
+ins_right({
   function()
     return '▊'
   end,
   color = { fg = colors.blue },
   padding = { left = 1 },
-}
+})
 
 -- Now don't forget to initialize lualine
 lualine.setup(config)

examples/slanted-gaps.lua

@@ -51,11 +51,11 @@ local function search_result()
   if vim.v.hlsearch == 0 then
     return ''
   end
-  local last_search = vim.fn.getreg '/'
+  local last_search = vim.fn.getreg('/')
   if not last_search or last_search == '' then
     return ''
   end
-  local searchcount = vim.fn.searchcount { maxcount = 9999 }
+  local searchcount = vim.fn.searchcount({ maxcount = 9999 })
   return last_search .. '(' .. searchcount.current .. '/' .. searchcount.total .. ')'
 end
 
@@ -68,13 +68,13 @@ local function modified()
   return ''
 end
 
-require('lualine').setup {
+require('lualine').setup({
   options = {
     theme = theme,
     component_separators = '',
     section_separators = { left = '', right = '' },
   },
-  sections = process_sections {
+  sections = process_sections({
     lualine_a = { 'mode' },
     lualine_b = {
       'branch',
@@ -116,9 +116,9 @@ require('lualine').setup {
     lualine_x = {},
     lualine_y = { search_result, 'filetype' },
     lualine_z = { '%l:%c', '%p%%/%L' },
-  },
+  }),
   inactive_sections = {
     lualine_c = { '%f %y %m' },
     lualine_x = {},
   },
-}
+})

lua/lualine.lua

@@ -1,14 +1,14 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
-local lualine_require = require 'lualine_require'
+local lualine_require = require('lualine_require')
-local modules = lualine_require.lazy_require {
+local modules = lualine_require.lazy_require({
   highlight = 'lualine.highlight',
   loader = 'lualine.utils.loader',
   utils_section = 'lualine.utils.section',
   utils = 'lualine.utils.utils',
   utils_notices = 'lualine.utils.notices',
   config_module = 'lualine.config',
-}
+})
 local config -- Stores cureently applied config
 local new_config = true -- Stores config that will be applied
 
@@ -119,7 +119,7 @@ local function apply_transitional_separators(status)
       copied_pos = str_checked
     elseif next_char == '%' then
       str_checked = str_checked + 2 -- Skip the following % too
-    elseif next_char == '=' and last_hl and (last_hl:find '^lualine_a' or last_hl:find '^lualine_b') then
+    elseif next_char == '=' and last_hl and (last_hl:find('^lualine_a') or last_hl:find('^lualine_b')) then
       -- TODO: Fix this properly
       -- This check for lualine_a and lualine_b is dumb. It doesn't garantee
       -- c or x section isn't present. Worst case sinario after this patch
@@ -158,7 +158,7 @@ local function statusline(sections, is_focused)
       if #section_data > 0 then
         if not applied_midsection_divider and section_name > 'c' then
           applied_midsection_divider = true
-          section_data = modules.highlight.format_highlight 'lualine_c' .. '%=' .. section_data
+          section_data = modules.highlight.format_highlight('lualine_c') .. '%=' .. section_data
         end
         if not applied_trunc and section_name > 'b' then
           applied_trunc = true
@@ -170,7 +170,7 @@ local function statusline(sections, is_focused)
   end
   if applied_midsection_divider == false and config.options.always_divide_middle ~= false then
     -- When non of section x,y,z is present
-    table.insert(status, modules.highlight.format_highlight 'lualine_c' .. '%=')
+    table.insert(status, modules.highlight.format_highlight('lualine_c') .. '%=')
   end
   return apply_transitional_separators(table.concat(status))
 end
@@ -244,13 +244,13 @@ local function setup_theme()
         return theme
       end
     end
-    notify_theme_error 'auto'
+    notify_theme_error('auto')
-    return modules.loader.load_theme 'gruvbox'
+    return modules.loader.load_theme('gruvbox')
   end
   local theme = get_theme_from_config()
   modules.highlight.create_highlight_groups(theme)
-  vim.cmd [[autocmd lualine ColorScheme * lua require'lualine'.setup()
+  vim.cmd([[autocmd lualine ColorScheme * lua require'lualine'.setup()
-    autocmd lualine OptionSet background lua require'lualine'.setup()]]
+    autocmd lualine OptionSet background lua require'lualine'.setup()]])
 end
 
 --- Sets &tabline option to lualine
@@ -268,7 +268,7 @@ end
 --- adds auto command to redraw lualine on VimResized event
 local function set_statusline()
   if next(config.sections) ~= nil or next(config.inactive_sections) ~= nil then
-    vim.cmd 'autocmd lualine VimResized * redrawstatus'
+    vim.cmd('autocmd lualine VimResized * redrawstatus')
   else
     vim.go.statusline = ''
     vim.go.laststatus = 0
@@ -281,7 +281,7 @@ local function reset_lualine()
     -- When notices module is not loaded there are no notices to clear.
     modules.utils_notices.clear_notices()
   end
-  vim.cmd [[augroup lualine | exe "autocmd!" | augroup END]]
+  vim.cmd([[augroup lualine | exe "autocmd!" | augroup END]])
   setup_theme()
   -- load components & extensions
   modules.loader.load_all(config)

lua/lualine/component.lua

@@ -1,7 +1,7 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
 local require = require('lualine_require').require
-local highlight = require 'lualine.highlight'
+local highlight = require('lualine.highlight')
 local M = require('lualine.utils.class'):extend()
 
 -- Used to provide a unique id for each component
@@ -72,7 +72,7 @@ function M:apply_padding()
     l_padding, r_padding = padding.left, padding.right
   end
   if l_padding then
-    if self.status:find '%%#.*#' == 1 then
+    if self.status:find('%%#.*#') == 1 then
       -- When component has changed the highlight at begining
       -- we will add the padding after the highlight
       local pre_highlight = vim.fn.matchlist(self.status, [[\(%#.\{-\}#\)]])[2]
@@ -91,7 +91,7 @@ function M:apply_highlights(default_highlight)
   if self.options.color_highlight then
     self.status = highlight.component_format_highlight(self.options.color_highlight) .. self.status
   end
-  if type(self.options.separator) ~= 'table' and self.status:find '%%#' then
+  if type(self.options.separator) ~= 'table' and self.status:find('%%#') then
     -- Apply default highlight only when we aren't applying trans sep and
     -- the component has changed it's hl. since we won't be applying
     -- regular sep in those cases so ending with default hl isn't neccessay
@@ -101,7 +101,7 @@ function M:apply_highlights(default_highlight)
   end
   -- Prepend default hl when the component doesn't start with hl otherwise
   -- color in previous component can cause side effect
-  if not self.status:find '^%%#' then
+  if not self.status:find('^%%#') then
     self.status = default_highlight .. self.status
   end
 end

lua/lualine/components/branch/git_branch.lua

@@ -1,7 +1,7 @@
 local M = {}
 
 local require = require('lualine_require').require
-local utils = require 'lualine.utils.utils'
+local utils = require('lualine.utils.utils')
 
 -- vars
 local current_git_branch = ''
@@ -23,7 +23,7 @@ local function get_git_head(head_file)
   if f_head then
     local HEAD = f_head:read()
     f_head:close()
-    local branch = HEAD:match 'ref: refs/heads/(.+)$'
+    local branch = HEAD:match('ref: refs/heads/(.+)$')
     if branch then
       current_git_branch = branch
     else
@@ -61,7 +61,7 @@ end
 ---@return string
 function M.find_git_dir(dir_path)
   -- get file dir so we can search from that dir
-  local file_dir = dir_path or vim.fn.expand '%:p:h'
+  local file_dir = dir_path or vim.fn.expand('%:p:h')
   local root_dir = file_dir
   local git_dir
   -- Search upward for .git file or folder
@@ -80,12 +80,12 @@ function M.find_git_dir(dir_path)
         local file = io.open(git_path)
         if file then
           git_dir = file:read()
-          git_dir = git_dir and git_dir:match 'gitdir: (.+)$'
+          git_dir = git_dir and git_dir:match('gitdir: (.+)$')
           file:close()
         end
         -- submodule / relative file path
-        if git_dir and git_dir:sub(1, 1) ~= sep and not git_dir:match '^%a:.*$' then
+        if git_dir and git_dir:sub(1, 1) ~= sep and not git_dir:match('^%a:.*$') then
-          git_dir = git_path:match '(.*).git' .. git_dir
+          git_dir = git_path:match('(.*).git') .. git_dir
         end
       end
       if git_dir then

lua/lualine/components/branch/init.lua

@@ -2,7 +2,7 @@
 -- MIT license, see LICENSE for more details.
 local M = require('lualine.component'):extend()
 local require = require('lualine_require').require
-local git_branch = require 'lualine.components.branch.git_branch'
+local git_branch = require('lualine.components.branch.git_branch')
 
 -- Initilizer
 M.init = function(self, options)

lua/lualine/components/buffers/buffer.lua

@@ -1,4 +1,4 @@
-local highlight = require 'lualine.highlight'
+local highlight = require('lualine.highlight')
 local Buffer = require('lualine.utils.class'):extend()
 
 ---intialize a new buffer from opts
@@ -26,13 +26,13 @@ function Buffer:get_props()
     if not status then
       dev, _ = '', ''
     elseif self.filetype == 'TelescopePrompt' then
-      dev, _ = require('nvim-web-devicons').get_icon 'telescope'
+      dev, _ = require('nvim-web-devicons').get_icon('telescope')
     elseif self.filetype == 'fugitive' then
-      dev, _ = require('nvim-web-devicons').get_icon 'git'
+      dev, _ = require('nvim-web-devicons').get_icon('git')
     elseif self.filetype == 'vimwiki' then
-      dev, _ = require('nvim-web-devicons').get_icon 'markdown'
+      dev, _ = require('nvim-web-devicons').get_icon('markdown')
     elseif self.buftype == 'terminal' then
-      dev, _ = require('nvim-web-devicons').get_icon 'zsh'
+      dev, _ = require('nvim-web-devicons').get_icon('zsh')
     elseif vim.fn.isdirectory(self.file) == 1 then
       dev, _ = '', nil
     else

lua/lualine/components/buffers/init.lua

@@ -1,9 +1,9 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
 local require = require('lualine_require').require
-local Buffer = require 'lualine.components.buffers.buffer'
+local Buffer = require('lualine.components.buffers.buffer')
 local M = require('lualine.component'):extend()
-local highlight = require 'lualine.highlight'
+local highlight = require('lualine.highlight')
 
 local default_options = {
   show_filename_only = true,
@@ -65,9 +65,9 @@ end
 function M:update_status()
   local data = {}
   local buffers = {}
-  for b = 1, vim.fn.bufnr '$' do
+  for b = 1, vim.fn.bufnr('$') do
     if vim.fn.buflisted(b) ~= 0 and vim.api.nvim_buf_get_option(b, 'buftype') ~= 'quickfix' then
-      buffers[#buffers + 1] = Buffer { bufnr = b, options = self.options, highlights = self.highlights }
+      buffers[#buffers + 1] = Buffer({ bufnr = b, options = self.options, highlights = self.highlights })
     end
   end
   local current_bufnr = vim.fn.bufnr()
@@ -110,7 +110,7 @@ function M:update_status()
   -- start drawing from current buffer and draw left and right of it until
   -- all buffers are drawn or max_length has been reached.
   if current == -2 then
-    local b = Buffer { bufnr = vim.fn.bufnr(), options = self.options, highlights = self.highlights }
+    local b = Buffer({ bufnr = vim.fn.bufnr(), options = self.options, highlights = self.highlights })
     b.current = true
     if self.options.self.section < 'lualine_x' then
       b.last = true
@@ -193,10 +193,10 @@ function M:draw()
   return self.status
 end
 
-vim.cmd [[
+vim.cmd([[
   function! LualineSwitchBuffer(bufnr, mouseclicks, mousebutton, modifiers)
     execute ":buffer " . a:bufnr
   endfunction
-]]
+]])
 
 return M

lua/lualine/components/diagnostics/config.lua

@@ -1,5 +1,5 @@
 local require = require('lualine_require').require
-local utils = require 'lualine.utils.utils'
+local utils = require('lualine.utils.utils')
 local M = {}
 
 -- default symbols for diagnostics component
@@ -18,7 +18,7 @@ M.options = {
   colored = true,
   update_in_insert = false,
   always_visible = false,
-  sources = { vim.fn.has 'nvim-0.6' == 1 and 'nvim_diagnostic' or 'nvim_lsp', 'coc' },
+  sources = { vim.fn.has('nvim-0.6') == 1 and 'nvim_diagnostic' or 'nvim_lsp', 'coc' },
   sections = { 'error', 'warn', 'info', 'hint' },
   diagnostics_color = {
     error = {

lua/lualine/components/diagnostics/init.lua

@@ -1,13 +1,13 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
-local lualine_require = require 'lualine_require'
+local lualine_require = require('lualine_require')
-local modules = lualine_require.lazy_require {
+local modules = lualine_require.lazy_require({
   default_config = 'lualine.components.diagnostics.config',
   sources = 'lualine.components.diagnostics.sources',
   highlight = 'lualine.highlight',
   utils = 'lualine.utils.utils',
   utils_notices = 'lualine.utils.notices',
-}
+})
 
 local M = lualine_require.require('lualine.component'):extend()
 
@@ -55,14 +55,14 @@ function M:init(options)
 
   -- Error out no source
   if #self.options.sources < 1 then
-    print 'no sources for diagnostics configured'
+    print('no sources for diagnostics configured')
     return ''
   end
-  if vim.fn.has 'nvim-0.6' == 1 then
+  if vim.fn.has('nvim-0.6') == 1 then
     for i, name in ipairs(self.options.sources) do
       if name == 'nvim_lsp' then
         self.options.sources[i] = 'nvim_diagnostic'
-        modules.utils_notices.add_notice [[
+        modules.utils_notices.add_notice([[
 ### diagnostics.source
 Diagnostics source `nvim_lsp` has been deprecated in favour of `nvim_diagnostic`.
 nvim_diagnostic shows diagnostics from neovim's diagnostics api
@@ -76,10 +76,10 @@ It needs to be updated to:
 ```lua
   {'diagnostics', sources = {'nvim_diagnostic'}}
 ```
-]]
+]])
       elseif name == 'nvim' then
         self.options.sources[i] = 'nvim_diagnostic'
-        modules.utils_notices.add_notice [[
+        modules.utils_notices.add_notice([[
 ### diagnostics.source
 Diagnostics source `nvim` has been renamed to `nvim_diagnostic`
 
@@ -91,7 +91,7 @@ It needs to be updated to:
 ```lua
   {'diagnostics', sources = {'nvim_diagnostic'}}
 ```
-]]
+]])
       end
     end
   end

lua/lualine/components/diff/git_diff.lua

@@ -1,8 +1,8 @@
-local lualine_require = require 'lualine_require'
+local lualine_require = require('lualine_require')
-local modules = lualine_require.lazy_require {
+local modules = lualine_require.lazy_require({
   utils = 'lualine.utils.utils',
   Job = 'lualine.utils.job',
-}
+})
 
 local M = {}
 
@@ -86,7 +86,7 @@ end
 function M.update_diff_args()
   -- Donn't show git diff when current buffer doesn't have a filename
   active_bufnr = tostring(vim.fn.bufnr())
-  if #vim.fn.expand '%' == 0 then
+  if #vim.fn.expand('%') == 0 then
     M.diff_args = nil
     git_diff = nil
     return
@@ -94,8 +94,8 @@ function M.update_diff_args()
   M.diff_args = {
     cmd = string.format(
       [[git -C %s --no-pager diff --no-color --no-ext-diff -U0 -- %s]],
-      vim.fn.expand '%:h',
+      vim.fn.expand('%:h'),
-      vim.fn.expand '%:t'
+      vim.fn.expand('%:t')
     ),
     on_stdout = function(_, data)
       if next(data) then

lua/lualine/components/diff/init.lua

@@ -1,12 +1,12 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
-local lualine_require = require 'lualine_require'
+local lualine_require = require('lualine_require')
-local modules = lualine_require.lazy_require {
+local modules = lualine_require.lazy_require({
   git_diff = 'lualine.components.diff.git_diff',
   utils = 'lualine.utils.utils',
   utils_notices = 'lualine.utils.notices',
   highlight = 'lualine.highlight',
-}
+})
 local M = lualine_require.require('lualine.component'):extend()
 
 local default_options = {
@@ -81,7 +81,7 @@ function M:update_status(is_focused)
 
   local result = {}
   -- loop though data and load available sections in result table
-  for _, name in ipairs { 'added', 'modified', 'removed' } do
+  for _, name in ipairs({ 'added', 'modified', 'removed' }) do
     if git_diff[name] and git_diff[name] > 0 then
       if self.options.colored then
         table.insert(result, colors[name] .. self.options.symbols[name] .. git_diff[name])

lua/lualine/components/filename.lua

@@ -35,13 +35,13 @@ M.update_status = function(self)
   local data
   if self.options.path == 1 then
     -- relative path
-    data = vim.fn.expand '%:~:.'
+    data = vim.fn.expand('%:~:.')
   elseif self.options.path == 2 then
     -- absolute path
-    data = vim.fn.expand '%:p'
+    data = vim.fn.expand('%:p')
   else
     -- just filename
-    data = vim.fn.expand '%:t'
+    data = vim.fn.expand('%:t')
   end
 
   if data == '' then

lua/lualine/components/filesize.lua

@@ -1,7 +1,7 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
 local function filesize()
-  local file = vim.fn.expand '%:p'
+  local file = vim.fn.expand('%:p')
   if file == nil or #file == 0 then
     return ''
   end

lua/lualine/components/filetype.lua

@@ -1,10 +1,10 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
-local lualine_require = require 'lualine_require'
+local lualine_require = require('lualine_require')
-local modules = lualine_require.lazy_require {
+local modules = lualine_require.lazy_require({
   highlight = 'lualine.highlight',
   utils = 'lualine.utils.utils',
-}
+})
 local M = lualine_require.require('lualine.component'):extend()
 
 local default_options = {
@@ -29,7 +29,7 @@ function M:apply_icon()
   local icon, icon_highlight_group
   local ok, devicons = pcall(require, 'nvim-web-devicons')
   if ok then
-    local f_name, f_extension = vim.fn.expand '%:t', vim.fn.expand '%:e'
+    local f_name, f_extension = vim.fn.expand('%:t'), vim.fn.expand('%:e')
     f_extension = f_extension ~= '' and f_extension or vim.bo.filetype
     icon, icon_highlight_group = devicons.get_icon(f_name, f_extension)
 
@@ -48,7 +48,7 @@ function M:apply_icon()
       icon = modules.highlight.component_format_highlight(icon_highlight) .. icon .. default_highlight
     end
   else
-    ok = vim.fn.exists '*WebDevIconsGetFileTypeSymbol'
+    ok = vim.fn.exists('*WebDevIconsGetFileTypeSymbol')
     if ok ~= 0 then
       icon = vim.fn.WebDevIconsGetFileTypeSymbol()
     end

lua/lualine/components/special/vim_var_component.lua

@@ -7,7 +7,7 @@ function M:update_status()
   -- vim veriable component
   -- accepts g:, v:, t:, w:, b:, o, go:, vo:, to:, wo:, bo:
   -- filters g portion from g:var
-  local scope = component:match '[gvtwb]?o?'
+  local scope = component:match('[gvtwb]?o?')
   -- filters var portion from g:var
   local var_name = component:sub(#scope + 2, #component)
   -- Displays nothing when veriable aren't present

lua/lualine/components/tabs/init.lua

@@ -1,9 +1,9 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
 local require = require('lualine_require').require
-local Tab = require 'lualine.components.tabs.tab'
+local Tab = require('lualine.components.tabs.tab')
 local M = require('lualine.component'):extend()
-local highlight = require 'lualine.highlight'
+local highlight = require('lualine.highlight')
 
 local default_options = {
   max_length = 0,
@@ -57,8 +57,8 @@ end
 function M:update_status()
   local data = {}
   local tabs = {}
-  for t = 1, vim.fn.tabpagenr '$' do
+  for t = 1, vim.fn.tabpagenr('$') do
-    tabs[#tabs + 1] = Tab { tabnr = t, options = self.options, highlights = self.highlights }
+    tabs[#tabs + 1] = Tab({ tabnr = t, options = self.options, highlights = self.highlights })
   end
   -- mark the first, last, current, before current, after current tabpages
   -- for rendering
@@ -93,7 +93,7 @@ function M:update_status()
   -- start drawing from current tab and draw left and right of it until
   -- all tabpages are drawn or max_length has been reached.
   if current_tab == nil then -- maybe redundent code
-    local t = Tab { tabnr = vim.fn.tabpagenr(), options = self.options, highlights = self.highlights }
+    local t = Tab({ tabnr = vim.fn.tabpagenr(), options = self.options, highlights = self.highlights })
     t.current = true
     t.last = true
     data[#data + 1] = t:render()
@@ -163,10 +163,10 @@ function M:draw()
   return self.status
 end
 
-vim.cmd [[
+vim.cmd([[
   function! LualineSwitchTab(tabnr, mouseclicks, mousebutton, modifiers)
     execute a:tabnr . "tabnext"
   endfunction
-]]
+]])
 
 return M

lua/lualine/components/tabs/tab.lua

@@ -1,4 +1,4 @@
-local highlight = require 'lualine.highlight'
+local highlight = require('lualine.highlight')
 local Tab = require('lualine.utils.class'):extend()
 
 ---intialize a new tab from opts

lua/lualine/config.lua

@@ -1,6 +1,6 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
-local utils = require 'lualine.utils.utils'
+local utils = require('lualine.utils.utils')
 
 local config = {
   options = {
@@ -62,10 +62,10 @@ local function apply_configuration(config_table)
       config[section_group_name][section_name] = utils.deepcopy(section)
     end
   end
-  parse_sections 'options'
+  parse_sections('options')
-  parse_sections 'sections'
+  parse_sections('sections')
-  parse_sections 'inactive_sections'
+  parse_sections('inactive_sections')
-  parse_sections 'tabline'
+  parse_sections('tabline')
   if config_table.extensions then
     config.extensions = utils.deepcopy(config_table.extensions)
   end

lua/lualine/extensions/chadtree.lua

@@ -1,6 +1,6 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
-local nerdtree = require 'lualine.extensions.nerdtree'
+local nerdtree = require('lualine.extensions.nerdtree')
 
 local M = {}
 

lua/lualine/extensions/fern.lua

@@ -1,6 +1,6 @@
 -- MIT license, see LICENSE for more details.
 -- Extension for fern file explorer.
-local nerdtree = require 'lualine.extensions.nerdtree'
+local nerdtree = require('lualine.extensions.nerdtree')
 
 local M = {}
 

lua/lualine/extensions/nvim-tree.lua

@@ -1,6 +1,6 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
-local nerdtree = require 'lualine.extensions.nerdtree'
+local nerdtree = require('lualine.extensions.nerdtree')
 
 local M = {}
 

lua/lualine/highlight.lua

@@ -1,12 +1,12 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
 local M = {}
-local lualine_require = require 'lualine_require'
+local lualine_require = require('lualine_require')
 local require = lualine_require.require
-local modules = lualine_require.lazy_require {
+local modules = lualine_require.lazy_require({
   utils = 'lualine.utils.utils',
   color_utils = 'lualine.utils.color_utils',
-}
+})
 
 local section_highlight_map = { x = 'c', y = 'b', z = 'a' }
 local active_theme = nil
@@ -202,7 +202,7 @@ function M.create_component_highlight_group(color, highlight_tag, options)
   }
   local normal_hl
   -- convert lualine_a -> a before setting section
-  local section = options.self.section:match 'lualine_(.*)'
+  local section = options.self.section:match('lualine_(.*)')
   if section > 'c' and not active_theme.normal[section] then
     section = section_highlight_map[section]
   end
@@ -231,7 +231,7 @@ end
 ---@return string formatted highlight group name
 function M.component_format_highlight(highlight_name)
   local highlight_group = highlight_name
-  if highlight_name:find 'no_mode' == #highlight_name - #'no_mode' + 1 then
+  if highlight_name:find('no_mode') == #highlight_name - #'no_mode' + 1 then
     return '%#' .. highlight_group .. '#'
   end
   highlight_group = M.append_mode(highlight_group)
@@ -251,7 +251,7 @@ end
 function M.format_highlight(highlight_group, is_focused)
   local highlight_name = M.append_mode(highlight_group, is_focused)
   if highlight_group > 'lualine_c' and not M.highlight_exists(highlight_name) then
-    highlight_group = 'lualine_' .. section_highlight_map[highlight_group:match 'lualine_(.)']
+    highlight_group = 'lualine_' .. section_highlight_map[highlight_group:match('lualine_(.)')]
     highlight_name = M.append_mode(highlight_group, is_focused)
   end
   if M.highlight_exists(highlight_name) then

lua/lualine/themes/auto.lua

@@ -1,7 +1,7 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
-local utils = require 'lualine.utils.utils'
+local utils = require('lualine.utils.utils')
-local loader = require 'lualine.utils.loader'
+local loader = require('lualine.utils.loader')
 
 local color_name = vim.g.colors_name
 if color_name then
@@ -23,7 +23,7 @@ local brightness_modifier_parameter = 10
 
 -- truns #rrggbb -> { red, green, blue }
 local function rgb_str2num(rgb_color_str)
-  if rgb_color_str:find '#' == 1 then
+  if rgb_color_str:find('#') == 1 then
     rgb_color_str = rgb_color_str:sub(2, #rgb_color_str)
   end
   local red = tonumber(rgb_color_str:sub(1, 2), 16)

lua/lualine/themes/pywal.lua

@@ -1,17 +1,17 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
 
-local lualine_require = require 'lualine_require'
+local lualine_require = require('lualine_require')
-local modules = lualine_require.lazy_require {
+local modules = lualine_require.lazy_require({
   utils_notices = 'lualine.utils.notices',
-}
+})
 local sep = package.config:sub(1, 1)
-local wal_colors_path = table.concat({ os.getenv 'HOME', '.cache', 'wal', 'colors.sh' }, sep)
+local wal_colors_path = table.concat({ os.getenv('HOME'), '.cache', 'wal', 'colors.sh' }, sep)
 local wal_colors_file = io.open(wal_colors_path, 'r')
 
 if wal_colors_file == nil then
   modules.utils_notices.add_notice('lualine.nvim: ' .. wal_colors_path .. ' not found')
-  error ''
+  error('')
 end
 
 local ok, wal_colors_text = pcall(wal_colors_file.read, wal_colors_file, '*a')
@@ -19,14 +19,14 @@ wal_colors_file:close()
 
 if not ok then
   modules.utils_notices.add_notice('lualine.nvim: ' .. wal_colors_path .. ' could not be read: ' .. wal_colors_text)
-  error ''
+  error('')
 end
 
 local colors = {}
 
 for line in vim.gsplit(wal_colors_text, '\n') do
-  if line:match "^[a-z0-9]+='#[a-fA-F0-9]+'$" ~= nil then
+  if line:match("^[a-z0-9]+='#[a-fA-F0-9]+'$") ~= nil then
-    local i = line:find '='
+    local i = line:find('=')
     local key = line:sub(0, i - 1)
     local value = line:sub(i + 2, #line - 1)
     colors[key] = value

lua/lualine/utils/class.lua

@@ -12,7 +12,7 @@ function Object:init(...) end
 function Object:extend()
   local cls = {}
   for k, v in pairs(self) do
-    if k:find '__' == 1 then
+    if k:find('__') == 1 then
       cls[k] = v
     end
   end

lua/lualine/utils/job.lua

@@ -44,9 +44,9 @@ local Job = setmetatable({
     end
     self.__index = self
     local job = setmetatable({ args = args }, self)
-    job:wrap_cb_alive 'on_stdout'
+    job:wrap_cb_alive('on_stdout')
-    job:wrap_cb_alive 'on_stderr'
+    job:wrap_cb_alive('on_stderr')
-    job:wrap_cb_alive 'on_stdin'
+    job:wrap_cb_alive('on_stdin')
     return job
   end,
 })

lua/lualine/utils/loader.lua

@@ -1,12 +1,12 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
 
-local lualine_require = require 'lualine_require'
+local lualine_require = require('lualine_require')
 local require = lualine_require.require
-local modules = lualine_require.lazy_require {
+local modules = lualine_require.lazy_require({
   utils = 'lualine.utils.utils',
   notice = 'lualine.utils.notices',
-}
+})
 local is_valid_filename = lualine_require.is_valid_filename
 local sep = lualine_require.sep
 
@@ -18,7 +18,7 @@ local component_types = {
   end,
   --- loads lua functions as component
   lua_fun = function(component)
-    return require 'lualine.components.special.function_component'(component)
+    return require('lualine.components.special.function_component')(component)
   end,
   --- loads lua modules as components (ones in /lua/lualine/components/)
   mod = function(component)
@@ -29,7 +29,7 @@ local component_types = {
         loaded_component = loaded_component(component)
       elseif type(loaded_component) == 'function' then
         component[1] = loaded_component
-        loaded_component = require 'lualine.components.special.function_component'(component)
+        loaded_component = require('lualine.components.special.function_component')(component)
       end
       return loaded_component
     end
@@ -40,15 +40,15 @@ local component_types = {
     component[1] = function()
       return stl_expr
     end
-    return require 'lualine.components.special.function_component'(component)
+    return require('lualine.components.special.function_component')(component)
   end,
   --- loads variables & options (g:,go:,b:,bo:...) as componenta
   var = function(component)
-    return require 'lualine.components.special.vim_var_component'(component)
+    return require('lualine.components.special.vim_var_component')(component)
   end,
   --- loads vim functions and lua expressions as components
   ['_'] = function(component)
-    return require 'lualine.components.special.eval_func_component'(component)
+    return require('lualine.components.special.eval_func_component')(component)
   end,
 }
 
@@ -80,7 +80,7 @@ component type '%s' isn't recognised. Check if spelling is correct.]],
       return loaded_component
     elseif string.char(component[1]:byte(1)) == '%' then
       return component_types.stl(component)
-    elseif component[1]:find '[gvtwb]?o?:' == 1 then
+    elseif component[1]:find('[gvtwb]?o?:') == 1 then
       return component_types.var(component)
     else
       return component_types['_'](component)
@@ -252,10 +252,10 @@ end
 local function load_theme(theme_name)
   assert(is_valid_filename(theme_name), 'Invalid filename')
   local retval
-  local path = table.concat { 'lua/lualine/themes/', theme_name, '.lua' }
+  local path = table.concat({ 'lua/lualine/themes/', theme_name, '.lua' })
   local files = vim.api.nvim_get_runtime_file(path, true)
   if #files <= 0 then
-    path = table.concat { 'lua/lualine/themes/', theme_name, '/init.lua' }
+    path = table.concat({ 'lua/lualine/themes/', theme_name, '/init.lua' })
     files = vim.api.nvim_get_runtime_file(path, true)
   end
   local n_files = #files

lua/lualine/utils/notices.lua

@@ -30,7 +30,7 @@ end
 ---are notices available
 function M.notice_message_startup()
   if #notices > 0 or #persistent_notices then
-    vim.cmd 'command! -nargs=0 LualineNotices lua require"lualine.utils.notices".show_notices()'
+    vim.cmd('command! -nargs=0 LualineNotices lua require"lualine.utils.notices".show_notices()')
     vim.schedule(function()
       vim.notify(
         'lualine: There are some issues with your config. Run :LualineNotices for details',
@@ -43,7 +43,7 @@ end
 
 ---create notice view
 function M.show_notices()
-  vim.cmd 'silent! keepalt split'
+  vim.cmd('silent! keepalt split')
 
   local winid = vim.fn.win_getid()
   local bufnr = vim.api.nvim_create_buf(false, true)
@@ -62,14 +62,14 @@ function M.show_notices()
   local ok, _ = pcall(vim.api.nvim_buf_set_name, 0, 'Lualine Notices')
   if not ok then
     vim.notify('Lualine Notices is already open in another buffer', vim.log.levels.ERROR, {})
-    vim.cmd 'normal q'
+    vim.cmd('normal q')
     return
   end
   local notice = vim.tbl_flatten(persistent_notices)
   notice = vim.list_extend(notice, vim.tbl_flatten(notices))
   vim.fn.appendbufline(bufnr, 0, notice)
 
-  vim.fn.deletebufline(bufnr, #notice, vim.fn.line '$')
+  vim.fn.deletebufline(bufnr, #notice, vim.fn.line('$'))
   vim.api.nvim_win_set_cursor(winid, { 1, 0 })
   vim.bo[bufnr].modified = false
   vim.bo[bufnr].modifiable = false

lua/lualine/utils/section.lua

@@ -2,8 +2,8 @@
 -- MIT license, see LICENSE for more details.
 local M = {}
 local require = require('lualine_require').require
-local utils = require 'lualine.utils.utils'
+local utils = require('lualine.utils.utils')
-local highlight = require 'lualine.highlight'
+local highlight = require('lualine.highlight')
 
 ---runs draw function on components in section
 ---handles separator edge cases :/
@@ -95,13 +95,13 @@ function M.draw_section(section, section_name, is_focused)
 
   local needs_hl
 
-  local find_start_trans_sep_start, find_start_trans_sep_end = status_str:find '^%%s{.-}'
+  local find_start_trans_sep_start, find_start_trans_sep_end = status_str:find('^%%s{.-}')
   if find_start_trans_sep_start then
     -- the section doesn't need to be prepended with default hl when sections
     -- first component has trasitionals sep
     needs_hl = status_str:find('^%%#', find_start_trans_sep_end + 1)
   else
-    needs_hl = status_str:find '^%%#'
+    needs_hl = status_str:find('^%%#')
   end
 
   if needs_hl then

lua/lualine_require.lua

@@ -53,10 +53,10 @@ function M.require(module)
     end
   end
 
-  pattern_path = table.concat { 'lua/', module:gsub('%.', '/'), '.lua' }
+  pattern_path = table.concat({ 'lua/', module:gsub('%.', '/'), '.lua' })
   local paths = vim.api.nvim_get_runtime_file(pattern_path, false)
   if #paths <= 0 then
-    pattern_path = table.concat { 'lua/', module:gsub('%.', '/'), '/init.lua' }
+    pattern_path = table.concat({ 'lua/', module:gsub('%.', '/'), '/init.lua' })
     paths = vim.api.nvim_get_runtime_file(pattern_path, false)
   end
   if #paths > 0 then

lua/tests/helpers.lua

@@ -22,7 +22,7 @@ function M.init_component(component, opts)
     comp = comp(opts)
   elseif type(comp) == 'function' then
     opts[1] = comp
-    comp = require 'lualine.components.special.function_component'(opts)
+    comp = require('lualine.components.special.function_component')(opts)
   end
   return comp
 end

lua/tests/minimal_init.lua

@@ -1,14 +1,14 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
 
-if os.getenv 'TEST_COV' then
+if os.getenv('TEST_COV') then
-  require 'luacov'
+  require('luacov')
 end
 -- load lualine and plenary
-vim.cmd [[
+vim.cmd([[
   set noswapfile
   set rtp+=.
   set rtp+=../plenary.nvim
   set rtp+=../nvim-web-devicons/
   runtime plugin/plenary.vim
-]]
+]])

lua/tests/spec/component_spec.lua

@@ -1,41 +1,41 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
 
-local helpers = require 'tests.helpers'
+local helpers = require('tests.helpers')
 
 local eq = assert.are.same
 local neq = assert.are_not.same
 local assert_component = helpers.assert_component
 local build_component_opts = helpers.build_component_opts
-local stub = require 'luassert.stub'
+local stub = require('luassert.stub')
 
 describe('Component:', function()
   it('can select separators', function()
     local opts = build_component_opts()
-    local comp = require 'lualine.components.special.function_component'(opts)
+    local comp = require('lualine.components.special.function_component')(opts)
     -- correct for lualine_c
     eq('', comp.options.separator)
-    local opts2 = build_component_opts { self = { section = 'lualine_y' } }
+    local opts2 = build_component_opts({ self = { section = 'lualine_y' } })
-    local comp2 = require 'lualine.components.special.function_component'(opts2)
+    local comp2 = require('lualine.components.special.function_component')(opts2)
     -- correct for lualine_u
     eq('', comp2.options.separator)
   end)
 
   it('can provide unique identifier', function()
     local opts1 = build_component_opts()
-    local comp1 = require 'lualine.components.special.function_component'(opts1)
+    local comp1 = require('lualine.components.special.function_component')(opts1)
     local opts2 = build_component_opts()
-    local comp2 = require 'lualine.components.special.function_component'(opts2)
+    local comp2 = require('lualine.components.special.function_component')(opts2)
     neq(comp1.component_no, comp2.component_no)
   end)
 
   it('create option highlights', function()
     local color = { fg = '#224532', bg = '#892345' }
-    local opts1 = build_component_opts { color = color }
+    local opts1 = build_component_opts({ color = color })
-    local hl = require 'lualine.highlight'
+    local hl = require('lualine.highlight')
     stub(hl, 'create_component_highlight_group')
-    hl.create_component_highlight_group.returns 'MyCompHl'
+    hl.create_component_highlight_group.returns('MyCompHl')
-    local comp1 = require 'lualine.components.special.function_component'(opts1)
+    local comp1 = require('lualine.components.special.function_component')(opts1)
     eq('MyCompHl', comp1.options.color_highlight)
     -- color highlight wan't in options when create_comp_hl was
     -- called so remove it before assert
@@ -43,10 +43,10 @@ describe('Component:', function()
     assert.stub(hl.create_component_highlight_group).was_called_with(color, comp1.options.component_name, comp1.options)
     hl.create_component_highlight_group:revert()
     color = 'MyHl'
-    local opts2 = build_component_opts { color = color }
+    local opts2 = build_component_opts({ color = color })
     stub(hl, 'create_component_highlight_group')
-    hl.create_component_highlight_group.returns 'MyCompLinkedHl'
+    hl.create_component_highlight_group.returns('MyCompLinkedHl')
-    local comp2 = require 'lualine.components.special.function_component'(opts2)
+    local comp2 = require('lualine.components.special.function_component')(opts2)
     eq('MyCompLinkedHl', comp2.options.color_highlight)
     -- color highlight wan't in options when create_comp_hl was
     -- called so remove it before assert
@@ -56,147 +56,147 @@ describe('Component:', function()
   end)
 
   it('can draw', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     assert_component(nil, opts, 'test')
   end)
 
   it('can apply separators', function()
-    local opts = build_component_opts { padding = 0 }
+    local opts = build_component_opts({ padding = 0 })
     assert_component(nil, opts, 'test')
   end)
 
   it('can apply default highlight', function()
-    local opts = build_component_opts { padding = 0, hl = '%#My_highlight#' }
+    local opts = build_component_opts({ padding = 0, hl = '%#My_highlight#' })
     assert_component(nil, opts, '%#My_highlight#test')
-    opts = build_component_opts {
+    opts = build_component_opts({
       function()
         return '%#Custom_hl#test'
       end,
       padding = 0,
       hl = '%#My_highlight#',
-    }
+    })
     assert_component(nil, opts, '%#Custom_hl#test%#My_highlight#')
-    opts = build_component_opts {
+    opts = build_component_opts({
       function()
         return 'in middle%#Custom_hl#test'
       end,
       padding = 0,
       hl = '%#My_highlight#',
-    }
+    })
     assert_component(nil, opts, '%#My_highlight#in middle%#Custom_hl#test%#My_highlight#')
   end)
 
   describe('Global options:', function()
     it('left_padding', function()
-      local opts = build_component_opts {
+      local opts = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = { left = 5 },
-      }
+      })
       assert_component(nil, opts, '     test')
     end)
 
     it('right_padding', function()
-      local opts = build_component_opts {
+      local opts = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = { right = 5 },
-      }
+      })
       assert_component(nil, opts, 'test     ')
     end)
 
     it('padding', function()
-      local opts = build_component_opts {
+      local opts = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 5,
-      }
+      })
       assert_component(nil, opts, '     test     ')
     end)
 
     it('icon', function()
-      local opts = build_component_opts {
+      local opts = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 0,
         icon = '0',
-      }
+      })
       assert_component(nil, opts, '0 test')
     end)
 
     it('icons_enabled', function()
-      local opts = build_component_opts {
+      local opts = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 0,
         icons_enabled = true,
         icon = '0',
-      }
+      })
       assert_component(nil, opts, '0 test')
-      local opts2 = build_component_opts {
+      local opts2 = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 0,
         icons_enabled = false,
         icon = '0',
-      }
+      })
       assert_component(nil, opts2, 'test')
     end)
 
     it('separator', function()
-      local opts = build_component_opts {
+      local opts = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 0,
         separator = '|',
-      }
+      })
       assert_component(nil, opts, 'test|')
     end)
 
     it('fmt', function()
-      local opts = build_component_opts {
+      local opts = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 0,
         fmt = function(data)
           return data:sub(1, 1):upper() .. data:sub(2, #data)
         end,
-      }
+      })
       assert_component(nil, opts, 'Test')
     end)
 
     it('cond', function()
-      local opts = build_component_opts {
+      local opts = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 0,
         cond = function()
           return true
         end,
-      }
+      })
       assert_component(nil, opts, 'test')
-      local opts2 = build_component_opts {
+      local opts2 = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 0,
         cond = function()
           return false
         end,
-      }
+      })
       assert_component(nil, opts2, '')
     end)
 
     it('color', function()
-      local opts = build_component_opts {
+      local opts = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 0,
         color = 'MyHl',
-      }
+      })
-      local comp = require 'lualine.components.special.function_component'(opts)
+      local comp = require('lualine.components.special.function_component')(opts)
       local custom_link_hl_name = 'lualine_' .. comp.options.component_name .. '_no_mode'
       eq('%#' .. custom_link_hl_name .. '#test', comp:draw(opts.hl))
-      local opts2 = build_component_opts {
+      local opts2 = build_component_opts({
         component_separators = { left = '', right = '' },
         padding = 0,
         color = { bg = '#230055', fg = '#223344' },
-      }
+      })
-      local hl = require 'lualine.highlight'
+      local hl = require('lualine.highlight')
       stub(hl, 'component_format_highlight')
-      hl.component_format_highlight.returns '%#MyCompHl#'
+      hl.component_format_highlight.returns('%#MyCompHl#')
-      local comp2 = require 'lualine.components.special.function_component'(opts2)
+      local comp2 = require('lualine.components.special.function_component')(opts2)
       assert_component(nil, opts2, '%#MyCompHl#test')
       assert.stub(hl.component_format_highlight).was_called_with(comp2.options.color_highlight)
       hl.component_format_highlight:revert()
@@ -206,27 +206,27 @@ end)
 
 describe('Encoding component', function()
   it('works', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     local tmp_path = 'tmp.txt'
     local tmp_fp = io.open(tmp_path, 'w')
-    tmp_fp:write 'test file'
+    tmp_fp:write('test file')
     tmp_fp:close()
     vim.cmd('e ' .. tmp_path)
     assert_component('encoding', opts, 'utf-8')
-    vim.cmd 'bd!'
+    vim.cmd('bd!')
     os.remove(tmp_path)
   end)
 end)
 
 describe('Fileformat component', function()
   it('works with icons', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     local fmt = vim.bo.fileformat
     vim.bo.fileformat = 'unix'
     assert_component('fileformat', opts, '')
@@ -237,11 +237,11 @@ describe('Fileformat component', function()
     vim.bo.fileformat = fmt
   end)
   it('works without icons', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
       icons_enabled = false,
-    }
+    })
     assert_component('fileformat', opts, vim.bo.fileformat)
   end)
 end)
@@ -262,14 +262,14 @@ describe('Filetype component', function()
     local old_require = _G.require
     function _G.require(...)
       if select(1, ...) == 'nvim-web-devicons' then
-        error 'Test case not suppose to have web-dev-icon 👀'
+        error('Test case not suppose to have web-dev-icon 👀')
       end
       return old_require(...)
     end
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     assert_component('filetype', opts, 'lua')
     _G.require = old_require
   end)
@@ -281,19 +281,19 @@ describe('Filetype component', function()
       end,
     }
 
-    local hl = require 'lualine.highlight'
+    local hl = require('lualine.highlight')
-    local utils = require 'lualine.utils.utils'
+    local utils = require('lualine.utils.utils')
     stub(hl, 'create_component_highlight_group')
     stub(utils, 'extract_highlight_colors')
-    hl.create_component_highlight_group.returns 'MyCompHl'
+    hl.create_component_highlight_group.returns('MyCompHl')
-    utils.extract_highlight_colors.returns '#000'
+    utils.extract_highlight_colors.returns('#000')
 
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
       colored = true,
       icon_only = false,
-    }
+    })
     assert_component('filetype', opts, '%#MyCompHl_normal#*%#lualine_c_normal# lua')
     assert.stub(utils.extract_highlight_colors).was_called_with('test_highlight_group', 'fg')
     assert.stub(hl.create_component_highlight_group).was_called_with({ fg = '#000' }, 'test_highlight_group', opts)
@@ -308,17 +308,17 @@ describe('Filetype component', function()
         return '*', 'test_highlight_group'
       end,
     }
-    local hl = require 'lualine.highlight'
+    local hl = require('lualine.highlight')
-    local utils = require 'lualine.utils.utils'
+    local utils = require('lualine.utils.utils')
     stub(hl, 'create_component_highlight_group')
     stub(utils, 'extract_highlight_colors')
-    hl.create_component_highlight_group.returns 'MyCompHl'
+    hl.create_component_highlight_group.returns('MyCompHl')
-    utils.extract_highlight_colors.returns '#000'
+    utils.extract_highlight_colors.returns('#000')
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
       colored = false,
-    }
+    })
     assert_component('filetype', opts, '* lua')
     hl.create_component_highlight_group:revert()
     utils.extract_highlight_colors:revert()
@@ -332,12 +332,12 @@ describe('Filetype component', function()
       end,
     }
 
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
       colored = false,
       icon_only = true,
-    }
+    })
     assert_component('filetype', opts, '*')
     package.loaded['nvim-web-devicons'] = nil
   end)
@@ -346,11 +346,11 @@ end)
 describe('Hostname component', function()
   it('works', function()
     stub(vim.loop, 'os_gethostname')
-    vim.loop.os_gethostname.returns 'localhost'
+    vim.loop.os_gethostname.returns('localhost')
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     assert_component('hostname', opts, 'localhost')
     vim.loop.os_gethostname:revert()
   end)
@@ -358,20 +358,20 @@ end)
 
 describe('Location component', function()
   it('works', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     assert_component('location', opts, '%3l:%-2v')
   end)
 end)
 
 describe('Progress component', function()
   it('works', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     assert_component('progress', opts, '%3p%%')
   end)
 end)
@@ -379,11 +379,11 @@ end)
 describe('Mode component', function()
   it('works', function()
     stub(vim.api, 'nvim_get_mode')
-    vim.api.nvim_get_mode.returns { mode = 'n', blocking = false }
+    vim.api.nvim_get_mode.returns({ mode = 'n', blocking = false })
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     assert_component('mode', opts, 'NORMAL')
     vim.api.nvim_get_mode:revert()
   end)
@@ -391,17 +391,17 @@ end)
 
 describe('FileSize component', function()
   it('works', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     local fname = 'test-file.txt'
     local f = io.open(fname, 'w')
     f:write(string.rep('........................................\n', 200))
     f:close()
     vim.cmd(':edit ' .. fname)
     assert_component('filesize', opts, '8.0k')
-    vim.cmd ':bdelete!'
+    vim.cmd(':bdelete!')
     os.remove(fname)
   end)
 end)
@@ -421,25 +421,25 @@ describe('Filename component', function()
   end
 
   it('works', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
       file_status = false,
       path = 0,
-    }
+    })
-    vim.cmd ':e test-file.txt'
+    vim.cmd(':e test-file.txt')
     assert_component('filename', opts, 'test-file.txt')
-    vim.cmd ':bdelete!'
+    vim.cmd(':bdelete!')
   end)
 
   it('can show file_status', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
       file_status = true,
       path = 0,
-    }
+    })
-    vim.cmd ':e test-file.txt'
+    vim.cmd(':e test-file.txt')
     vim.bo.modified = false
     assert_component('filename', opts, 'test-file.txt')
     vim.bo.modified = true
@@ -447,39 +447,39 @@ describe('Filename component', function()
     vim.bo.modified = false
     vim.bo.ro = true
     assert_component('filename', opts, 'test-file.txt[-]')
-    vim.cmd ':bdelete!'
+    vim.cmd(':bdelete!')
   end)
 
   it('can show relative path', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
       file_status = false,
       path = 1,
-    }
+    })
-    vim.cmd ':e test-file.txt'
+    vim.cmd(':e test-file.txt')
-    assert_component('filename', opts, shorten_path(vim.fn.expand '%:~:.'))
+    assert_component('filename', opts, shorten_path(vim.fn.expand('%:~:.')))
-    vim.cmd ':bdelete!'
+    vim.cmd(':bdelete!')
   end)
 
   it('can show full path', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
       file_status = false,
       path = 2,
-    }
+    })
-    vim.cmd ':e test-file.txt'
+    vim.cmd(':e test-file.txt')
-    assert_component('filename', opts, shorten_path(vim.fn.expand '%:p'))
+    assert_component('filename', opts, shorten_path(vim.fn.expand('%:p')))
-    vim.cmd ':bdelete!'
+    vim.cmd(':bdelete!')
   end)
 end)
 
 describe('vim option & variable component', function()
-  local opts = build_component_opts {
+  local opts = build_component_opts({
     component_separators = { left = '', right = '' },
     padding = 0,
-  }
+  })
 
   local function assert_vim_var_component(name, options, result)
     options[1] = name
@@ -514,10 +514,10 @@ describe('vim option & variable component', function()
 end)
 
 describe('Vim option & variable component', function()
-  local opts = build_component_opts {
+  local opts = build_component_opts({
     component_separators = { left = '', right = '' },
     padding = 0,
-  }
+  })
 
   local function assert_vim_var_component(name, options, result)
     options[1] = name
@@ -526,13 +526,13 @@ describe('Vim option & variable component', function()
   end
 
   it('works with vim function', function()
-    vim.cmd [[
+    vim.cmd([[
       func! TestFunction() abort
         return "TestVimFunction"
       endf
-    ]]
+    ]])
     assert_vim_var_component('TestFunction', opts, 'TestVimFunction')
-    vim.cmd 'delfunction TestFunction'
+    vim.cmd('delfunction TestFunction')
   end)
 
   it('works with lua expression', function()
@@ -557,11 +557,11 @@ describe('Branch component', function()
     os.remove(tmpdir)
     file = tmpdir .. '/test.txt'
     vim.fn.mkdir(tmpdir, 'p')
-    git 'init -b test_branch'
+    git('init -b test_branch')
-    vim.cmd [[aug lualine
+    vim.cmd([[aug lualine
     au!
     aug END
-  ]]
+  ]])
   end)
 
   after_each(function()
@@ -569,16 +569,16 @@ describe('Branch component', function()
   end)
 
   it('works with regular branches', function()
-    local opts = build_component_opts {
+    local opts = build_component_opts({
       component_separators = { left = '', right = '' },
       padding = 0,
-    }
+    })
     local branch_comp = helpers.init_component('branch', opts)
     vim.cmd('e ' .. file)
     assert_comp_ins(branch_comp, ' test_branch')
-    git 'checkout -b test_branch2'
+    git('checkout -b test_branch2')
-    vim.cmd 'e k'
+    vim.cmd('e k')
-    vim.cmd 'bd'
+    vim.cmd('bd')
     vim.cmd('e ' .. file)
     opts.icons_enabled = false
     assert_comp_ins(branch_comp, 'test_branch2')

lua/tests/spec/config_spec.lua

@@ -4,12 +4,12 @@
 local eq = assert.are.same
 
 describe('config parsing', function()
-  local config_module = require 'lualine.config'
+  local config_module = require('lualine.config')
 
   describe('options', function()
     describe('icons_enabled', function()
       it('default', function()
-        local config = config_module.apply_configuration {}
+        local config = config_module.apply_configuration({})
         eq(config.options.icons_enabled, true)
       end)
       it('custom', function()
@@ -21,7 +21,7 @@ describe('config parsing', function()
 
     describe('theme', function()
       it('default', function()
-        local config = config_module.apply_configuration {}
+        local config = config_module.apply_configuration({})
         eq(config.options.theme, 'auto')
       end)
       it('custom', function()
@@ -36,7 +36,7 @@ describe('config parsing', function()
 
     describe('separators', function()
       it('default', function()
-        local config = config_module.apply_configuration {}
+        local config = config_module.apply_configuration({})
         eq(config.options.component_separators, { left = '', right = '' })
         eq(config.options.section_separators, { left = '', right = '' })
       end)
@@ -85,7 +85,7 @@ describe('config parsing', function()
 
     describe('disabled filetypes', function()
       it('default', function()
-        local config = config_module.apply_configuration {}
+        local config = config_module.apply_configuration({})
         eq(config.options.disabled_filetypes, {})
       end)
       it('custom', function()

lua/tests/spec/lualine_spec.lua

@@ -4,7 +4,7 @@
 local eq = assert.are.same
 
 describe('Lualine', function()
-  local utils = require 'lualine.utils.utils'
+  local utils = require('lualine.utils.utils')
   local lualine_focused = true
   utils.is_focused = function()
     return lualine_focused
@@ -51,7 +51,7 @@ describe('Lualine', function()
     extensions = {},
   }
   before_each(function()
-    vim.cmd 'bufdo bdelete'
+    vim.cmd('bufdo bdelete')
     pcall(vim.cmd, 'tabdo tabclose')
     lualine_focused = true
     require('lualine').setup(config)

lua/tests/spec/utils_spec.lua

@@ -1,26 +1,26 @@
 -- Copyright (c) 2020-2021 shadmansaleh
 -- MIT license, see LICENSE for more details.
 
-local helpers = require 'tests.helpers'
+local helpers = require('tests.helpers')
 
 local eq = assert.are.same
 local build_component_opts = helpers.build_component_opts
 
 describe('Utils', function()
-  local utils = require 'lualine.utils.utils'
+  local utils = require('lualine.utils.utils')
 
   it('can retrive highlight groups', function()
     local hl2 = { fg = '#aabbcc', bg = '#889977', reverse = true }
     -- handles non existing hl groups
-    eq(utils.extract_highlight_colors 'hl2', nil)
+    eq(utils.extract_highlight_colors('hl2'), nil)
     -- create highlight
     vim.cmd(string.format('hi hl2 guifg=%s guibg=%s gui=reverse', hl2.fg, hl2.bg))
     -- Can retrive entire highlight table
-    eq(utils.extract_highlight_colors 'hl2', hl2)
+    eq(utils.extract_highlight_colors('hl2'), hl2)
     -- Can retrive specific parts of highlight
     eq(utils.extract_highlight_colors('hl2', 'fg'), hl2.fg)
     -- clear hl2
-    vim.cmd 'hi clear hl2'
+    vim.cmd('hi clear hl2')
   end)
 
   it('can shrink list with holes', function()
@@ -44,7 +44,7 @@ describe('Utils', function()
 end)
 
 describe('Cterm genarator', function()
-  local cterm = require 'lualine.utils.color_utils'
+  local cterm = require('lualine.utils.color_utils')
 
   it('can convert rgb to cterm', function()
     local colors = { ['#112233'] = 235, ['#7928ae'] = 97, ['#017bdc'] = 68 }
@@ -55,32 +55,32 @@ describe('Cterm genarator', function()
 end)
 
 describe('Section genarator', function()
-  local sec = require 'lualine.utils.section'
+  local sec = require('lualine.utils.section')
   it('can draw', function()
-    local opts = build_component_opts { section_separators = { left = '', right = '' } }
+    local opts = build_component_opts({ section_separators = { left = '', right = '' } })
     local section = {
-      require 'lualine.components.special.function_component'(opts),
+      require('lualine.components.special.function_component')(opts),
-      require 'lualine.components.special.function_component'(opts),
+      require('lualine.components.special.function_component')(opts),
     }
     eq('%#lualine_MySection_normal# test %#lualine_MySection_normal# test ', sec.draw_section(section, 'MySection'))
   end)
 
   it('can remove separators from component with custom colors', function()
-    local opts = build_component_opts { section_separators = { left = '', right = '' } }
+    local opts = build_component_opts({ section_separators = { left = '', right = '' } })
-    local opts_colored = build_component_opts { color = 'MyColor' }
+    local opts_colored = build_component_opts({ color = 'MyColor' })
-    local opts_colored2 = build_component_opts {
+    local opts_colored2 = build_component_opts({
       color = { bg = '#223344' },
       section_separators = { left = '', right = '' },
-    }
+    })
-    local opts_colored3 = build_component_opts {
+    local opts_colored3 = build_component_opts({
       color = { fg = '#223344' },
       section_separators = { left = '', right = '' },
-    }
+    })
-    require('lualine.highlight').create_highlight_groups(require 'lualine.themes.gruvbox')
+    require('lualine.highlight').create_highlight_groups(require('lualine.themes.gruvbox'))
     local section = {
-      require 'lualine.components.special.function_component'(opts),
+      require('lualine.components.special.function_component')(opts),
-      require 'lualine.components.special.function_component'(opts_colored),
+      require('lualine.components.special.function_component')(opts_colored),
-      require 'lualine.components.special.function_component'(opts),
+      require('lualine.components.special.function_component')(opts),
     }
     local highlight_name2 = 'lualine_' .. section[2].options.component_name .. '_no_mode'
     -- Removes separator on string color
@@ -88,14 +88,14 @@ describe('Section genarator', function()
       '%#lualine_MySection_normal# test %#' .. highlight_name2 .. '#' .. ' test %#lualine_MySection_normal# test ',
       sec.draw_section(section, 'MySection')
     )
-    section[2] = require 'lua.lualine.components.special.function_component'(opts_colored2)
+    section[2] = require('lua.lualine.components.special.function_component')(opts_colored2)
     local highlight_name = '%#lualine_c_' .. section[2].options.component_name .. '_normal#'
     -- Removes separator on color with bg
     eq(
       '%#lualine_MySection_normal# test ' .. highlight_name .. ' test %#lualine_MySection_normal# test ',
       sec.draw_section(section, 'MySection')
     )
-    section[2] = require 'lua.lualine.components.special.function_component'(opts_colored3)
+    section[2] = require('lua.lualine.components.special.function_component')(opts_colored3)
     highlight_name2 = '%#lualine_c_' .. section[2].options.component_name .. '_normal#'
     -- Doesn't remove separator on color without bg
     eq(