feat: lualine.nvim

nix/neovim-overlay.nix

@@ -43,6 +43,7 @@ with final.pkgs.lib; let
     mini-icons
     alpha-nvim
     bufferline-nvim
+    lualine-nvim
   ];
 
   extraPackages = with pkgs; [

nvim/lua/icons.lua

@@ -10,4 +10,9 @@ return {
     mru = '',
     project = '',
   },
+  git = {
+    added = ' ',
+    modified = ' ',
+    removed = ' ',
+  },
 }

nvim/lua/lib/lazyvim/lualine.lua

@@ -0,0 +1,155 @@
+-- https://github.com/LazyVim/LazyVim/blob/main/lua/lazyvim/util/lualine.lua
+
+local lazy_util = require('lib.lazy.util')
+local lazyvim_root = require('lib.lazyvim.root')
+local lazyvim_ui = require('lib.lazyvim.ui')
+
+---@class lib.lazyvim.lualine
+local M = {}
+
+---@param component any
+---@param text string
+---@param hl_group? string
+---@return string
+function M.format(component, text, hl_group)
+  text = text:gsub('%%', '%%%%')
+
+  if not hl_group or hl_group == '' then
+    return text
+  end
+
+  ---@type table<string, string>
+  component.hl_cache = component.hl_cache or {}
+  local lualine_hl_group = component.hl_cache[hl_group]
+
+  if not lualine_hl_group then
+    local utils = require('lualine.utils.utils')
+
+    ---@type string[]
+    local gui = vim.tbl_filter(function(x)
+      return x
+    end, {
+      utils.extract_highlight_colors(hl_group, 'bold') and 'bold',
+      utils.extract_highlight_colors(hl_group, 'italic') and 'italic',
+    })
+
+    lualine_hl_group = component:create_hl({
+      fg = utils.extract_highlight_colors(hl_group, 'fg'),
+      gui = #gui > 0 and table.concat(gui, ',') or nil,
+    }, 'LV_' .. hl_group) --[[@as string]]
+
+    component.hl_cache[hl_group] = lualine_hl_group
+  end
+
+  return component:format_hl(lualine_hl_group)
+    .. text
+    .. component:get_default_hl()
+end
+
+---@param opts? {relative: "cwd"|"root", modified_hl: string?, directory_hl: string?, filename_hl: string?, modified_sign: string?, readonly_icon: string?, length: number?}
+function M.pretty_path(opts)
+  opts = vim.tbl_extend('force', {
+    relative = 'cwd',
+    modified_hl = 'MatchParen',
+    directory_hl = '',
+    filename_hl = 'Bold',
+    modified_sign = '',
+    readonly_icon = ' 󰌾 ',
+    length = 3,
+  }, opts or {})
+
+  return function(self)
+    local path = vim.fn.expand('%:p') --[[@as string]]
+
+    if path == '' then
+      return ''
+    end
+
+    path = lazy_util.norm(path)
+    local root = lazyvim_root.get({ normalize = true })
+    local cwd = lazyvim_root.cwd()
+
+    if opts.relative == 'cwd' and path:find(cwd, 1, true) == 1 then
+      path = path:sub(#cwd + 2)
+    elseif path:find(root, 1, true) == 1 then
+      path = path:sub(#root + 2)
+    end
+
+    local sep = package.config:sub(1, 1)
+    local parts = vim.split(path, '[\\/]')
+
+    if opts.length == 0 then
+      parts = parts
+    elseif #parts > opts.length then
+      parts =
+        { parts[1], '…', unpack(parts, #parts - opts.length + 2, #parts) }
+    end
+
+    if opts.modified_hl and vim.bo.modified then
+      parts[#parts] = parts[#parts] .. opts.modified_sign
+      parts[#parts] = M.format(self, parts[#parts], opts.modified_h1)
+    else
+      parts[#parts] = M.format(self, parts[#parts], opts.filename_hl)
+    end
+
+    local dir = ''
+
+    if #parts > 1 then
+      dir = table.concat({ unpack(parts, 1, #parts - 1) }, sep)
+      dir = M.format(self, dir .. sep, opts.directory_hl)
+    end
+
+    local readonly = ''
+
+    if vim.bo.readonly then
+      readonly = M.format(self, opts.readonly_icon, opts.modified_hl)
+    end
+
+    return dir .. parts[#parts] .. readonly
+  end
+end
+
+---@param opts? {cwd:false, subdirectory:true, parent:true, other:true, icon?:string}
+function M.root_dir(opts)
+  opts = vim.tbl_extend('force', {
+    cwd = false,
+    subdirectory = true,
+    parent = true,
+    other = true,
+    icon = '󱉭 ',
+    color = function()
+      return lazyvim_ui.fg('Special')
+    end,
+  }, opts or {})
+
+  local function get()
+    local cwd = lazyvim_root.cwd()
+    local root = lazyvim_root.get({ normalize = true })
+    local name = vim.fs.basename(root)
+
+    if root == cwd then
+      return opts.cwd and name
+    elseif root:find(cwd, 1, true) == 1 then
+      -- Root is subdirectory or cwd.
+      return opts.subdirectory and name
+    elseif cwd:find(root, 1, true) == 1 then
+      -- Root is parent directory of cwd.
+      return opts.parent and name
+    else
+      -- Root and cwd are not related.
+      return opts.other and name
+    end
+  end
+
+  return {
+    function()
+      return (opts.icon and opts.icon .. ' ') .. get()
+    end,
+    cond = function()
+      return type(get()) == 'string'
+    end,
+    color = opts.color,
+  }
+end
+
+return M

nvim/lua/lib/lazyvim/root.lua

@@ -190,4 +190,8 @@ function M.git()
   return ret
 end
 
+function M.cwd()
+  return M.realpath(vim.uv.cwd()) or ''
+end
+
 return M

nvim/lua/lib/lazyvim/ui.lua

@@ -22,4 +22,11 @@ function M.foldexpr()
   return vim.b[buf].ts_folds and vim.treesitter.foldexpr() or '0'
 end
 
+---@return {fg?:string}?
+function M.fg(name)
+  local hl = vim.api.nvim_get_hl(0, { name = name, link = false })
+  local fg = hl and hl.fg or hl.foreground
+  return fg and { fg = string.format('#%06x', fg) } or nil
+end
+
 return M

nvim/lua/plugins/ui/init.lua

@@ -3,5 +3,6 @@ local req = require('lib.marleyvim').localRequire('plugins.ui')
 return {
   req('alpha-nvim'),
   req('bufferline-nvim'),
+  req('lualine-nvim'),
   req('mini-icons'),
 }

nvim/lua/plugins/ui/lualine-nvim.lua

@@ -0,0 +1,124 @@
+return {
+  'lualine.nvim',
+  event = 'DeferredUIEnter',
+  beforeAll = function()
+    vim.g.lualine_laststatus = vim.o.laststatus
+
+    if vim.fn.argc(-1) > 0 then
+      -- Set an empty statusline until lualine loads.
+      vim.o.statusline = ' '
+    else
+      -- Hide the statusline on the starter page.
+      vim.o.laststatus = 0
+    end
+  end,
+  before = function()
+    if vim.g.colors_name == 'rose-pine' then
+      require('lz.n').trigger_load('rose-pine')
+    end
+  end,
+  after = function()
+    local lazyvim_lualine = require('lib.lazyvim.lualine')
+    local lazyvim_ui = require('lib.lazyvim.ui')
+    local icons = require('icons')
+
+    vim.o.laststatus = vim.g.lualine_laststatus
+
+    require('lualine').setup({
+      options = {
+        theme = 'auto',
+        globalstatus = vim.o.laststatus == 3,
+        disabled_filetypes = {
+          statusline = {
+            'dashboard',
+            'alpha',
+            'ministarter',
+            'snacks_dashboard',
+          },
+        },
+        sections = {
+          lualine_a = { 'mode' },
+          lualine_b = { 'branch' },
+
+          lualine_c = {
+            lazyvim_lualine.root_dir(),
+            {
+              'diagnostics',
+              symbols = {
+                error = icons.diagnostics.Error,
+                warn = icons.diagnostics.Warn,
+                info = icons.diagnostics.Info,
+                hint = icons.diagnostics.Hint,
+              },
+            },
+            {
+              'filetype',
+              icon_only = true,
+              separator = '',
+              padding = { left = 1, right = 0 },
+            },
+            { lazyvim_lualine.pretty_path() },
+          },
+
+          lualine_x = {
+            {
+              function()
+                return require('noice').api.status.command.get()
+              end,
+              cond = function()
+                return package.loaded['noice']
+                  and require('noice').api.status.command.has()
+              end,
+              color = function()
+                return lazyvim_ui.fg('Statement')
+              end,
+            },
+
+            {
+              function()
+                return '  ' .. require('dap').status()
+              end,
+              cond = function()
+                return package.loaded['dap'] and require('dap').status ~= ''
+              end,
+              color = function()
+                return lazyvim_ui.fg('debug')
+              end,
+            },
+
+            {
+              'diff',
+              symbols = {
+                added = icons.git.added,
+                modified = icons.git.modified,
+                removed = icons.git.removed,
+              },
+              source = function()
+                local gitsigns = vim.b.gitsigns_status_dict
+
+                if gitsigns then
+                  return {
+                    added = gitsigns.added,
+                    modified = gitsigns.changed,
+                    removed = gitsigns.removed,
+                  }
+                end
+              end,
+            },
+          },
+
+          lualine_y = {
+            { 'progress', separator = ' ', padding = { left = 1, right = 0 } },
+            { 'location', padding = { left = 0, right = 1 } },
+          },
+          lualine_z = {
+            function()
+              return ' ' .. os.date('%R')
+            end,
+          },
+        },
+        extensions = { 'neo-tree' },
+      },
+    })
+  end,
+}