evil_lualine.lua

-- Eviline config for lualine
-- Author: shadmansaleh
-- Credit: glepnir
local lualine = require 'lualine'

-- Color table for highlights
local colors = {
  bg = '#202328',
  fg = '#bbc2cf',
  yellow = '#ECBE7B',
  cyan = '#008080',
  darkblue = '#081633',
  green = '#98be65',
  orange = '#FF8800',
  violet = '#a9a1e1',
  magenta = '#c678dd',
  blue = '#51afef',
  red = '#ec5f67'
}

local conditions = {
  buffer_not_empty = function() 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 gitdir = vim.fn.finddir('.git', filepath .. ';')
    return gitdir and #gitdir > 0 and #gitdir < #filepath
  end
}

-- Config
local config = {
  options = {
    -- Disable sections and component separators
    component_separators = "",
    section_separators = "",
    theme = {
      -- We are going to use lualine_c an lualine_x as left and
      -- right section. Both are highlighted by c theme .  So we
      -- are just setting default looks o statusline
      normal = {c = {fg = colors.fg, bg = colors.bg}},
      inactive = {c = {fg = colors.fg, bg = colors.bg}}
    }
  },
  sections = {
    -- these are to remove the defaults
    lualine_a = {},
    lualine_b = {},
    lualine_y = {},
    lualine_z = {},
    -- These will be filled later
    lualine_c = {},
    lualine_x = {}
  },
  inactive_sections = {
    -- these are to remove the defaults
    lualine_a = {},
    lualine_v = {},
    lualine_y = {},
    lualine_z = {},
    lualine_c = {},
    lualine_x = {}
  }
}

-- Inserts a component in lualine_c at left section
local function ins_left(component)
  table.insert(config.sections.lualine_c, component)
end

-- Inserts a component in lualine_x ot right section
local function ins_right(component)
  table.insert(config.sections.lualine_x, component)
end

ins_left {
  function() return '▊' end,
  color = {fg = colors.blue}, -- Sets highlighting of component
  left_padding = 0 -- We don't need space before this
}

ins_left {
  -- mode component
  function()
    -- auto change color according to neovims mode
    local mode_color = {
      n = colors.red,
      i = colors.green,
      v = colors.blue,
      [''] = colors.blue,
      V = colors.blue,
      c = colors.magenta,
      no = colors.red,
      s = colors.orange,
      S = colors.orange,
      [''] = colors.orange,
      ic = colors.yellow,
      R = colors.violet,
      Rv = colors.violet,
      cv = colors.red,
      ce = colors.red,
      r = colors.cyan,
      rm = colors.cyan,
      ['r?'] = colors.cyan,
      ['!'] = colors.red,
      t = colors.red
    }
    vim.api.nvim_command(
        'hi! LualineMode guifg=' .. mode_color[vim.fn.mode()] .. " guibg=" ..
            colors.bg)
    return ''
  end,
  color = "LualineMode",
  left_padding = 0
}

ins_left {
  -- filesize component
  function()
    local function format_file_size(file)
      local size = vim.fn.getfsize(file)
      if size <= 0 then return '' end
      local sufixes = {'b', 'k', 'm', 'g'}
      local i = 1
      while size > 1024 do
        size = size / 1024
        i = i + 1
      end
      return string.format('%.1f%s', size, sufixes[i])
    end
    local file = vim.fn.expand('%:p')
    if string.len(file) == 0 then return '' end
    return format_file_size(file)
  end,
  condition = conditions.buffer_not_empty
}

ins_left {
  'filename',
  condition = conditions.buffer_not_empty,
  color = {fg = colors.magenta, gui = 'bold'}
}

ins_left {'location'}

ins_left {'progress', color = {fg = colors.fg, gui = 'bold'}}

ins_left {
  'diagnostics',
  sources = {'nvim_lsp'},
  symbols = {error = ' ', warn = ' ', info = ' '},
  color_error = colors.red,
  color_warn = colors.yellow,
  color_info = 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 {function() return '%=' end}

ins_left {
  -- Lsp server name .
  function()
    local msg = 'No Active Lsp'
    local buf_ft = vim.api.nvim_buf_get_option(0, 'filetype')
    local clients = vim.lsp.get_active_clients()
    if next(clients) == nil then return msg end
    for _, client in ipairs(clients) do
      local filetypes = client.config.filetypes
      if filetypes and vim.fn.index(filetypes, buf_ft) ~= -1 then
        return client.name
      end
    end
    return msg
  end,
  icon = ' LSP:',
  color = {fg = '#ffffff', gui = 'bold'}
}

-- Add components to right sections
ins_right {
  'o:encoding', -- option component same as &encoding in viml
  upper = true, -- I'm not sure why it's upper case either ;)
  condition = conditions.hide_in_width,
  color = {fg = colors.green, gui = 'bold'}
}

ins_right {
  'fileformat',
  upper = true,
  icons_enabled = false, -- I think icons are cool but Eviline doesn't have them. sigh
  color = {fg = colors.green, gui = 'bold'}
}

ins_right {
  'branch',
  icon = '',
  condition = conditions.check_git_workspace,
  color = {fg = colors.violet, gui = 'bold'}
}

ins_right {
  'diff',
  -- Is it me or the symbol for modified us really weird
  symbols = {added = ' ', modified = '柳 ', removed = ' '},
  color_added = colors.green,
  color_modified = colors.orange,
  color_removed = colors.red,
  condition = conditions.hide_in_width
}

ins_right {
  function() return '▊' end,
  color = {fg = colors.blue},
  right_padding = 0
}

-- Now don't forget to initialize lualine
lualine.setup(config)

EDIT: I just realized the diff shows when you save the file, not as and when you type. I checked the issues and ran the diagnostic diff command, and it works fine. My Apologies 😅 Would there be any way to get the diff to update live?

Hi! Thank you for putting your config out there. The diff block doesn't seem to be working for me - how could I best approach debugging this, and if I need to provide additional information, how could I help?
Thank you!

The internal diff implementation checks diff for file not buffer . If you have something else that tracks of buffer based diff then you can use that as data source and you'll have buffer diffs . For example I'm using gitsigns like this

.
├── .git
├── .gitignore
├── node_modules
├── package-lock.json
├── package.json
├── src
Normal display of branch:

nvim package.json

When I enter the src directory, the branch does not display properly:

cd src/
nvim App.tsx

Do not show branch

This will display the branch properly again:

nvim src/App.tsx

@DemoorBug Can you reproduce this with https://github.com/shadmansaleh/lualine.nvim ?

Can you reproduce it in just that folder or in any git folder ?

This file is considered deprecated by me . Switch to
https://github.com/shadmansaleh/lualine.nvim

and grab examples/evil_lualine.lua

That one is maintained see nvim-lualine/lualine.nvim#311 for details. Make proper issue reports in the repo.

I will not respond to issues here anymore .