adding initial lightline support. Resolve #23

lua/gruvbox/init.lua

@@ -983,4 +983,8 @@ local groups = lush(function()
     GitGutterChangeDelete {GruvboxAquaSign},
   }
 end)
+
+-- lightline check
+require("gruvbox.plugins.lightline").start()
+
 return groups

lua/gruvbox/plugins/lightline.lua

@@ -0,0 +1,76 @@
+-- lightline support
+local M = {}
+
+local function get_gruvbox_color(group)
+  local gui_color = vim.fn.synIDattr(vim.fn.hlID(group), "fg", "gui")
+  local term_color = vim.fn.synIDattr(vim.fn.hlID(group), "fg", "cterm")
+  return {gui_color, term_color}
+end
+
+local bg0 = get_gruvbox_color("GruvboxBg0")
+local bg1 = get_gruvbox_color("GruvboxBg1")
+local bg2 = get_gruvbox_color("GruvboxBg2")
+local bg4 = get_gruvbox_color("GruvboxBg4")
+local fg1 = get_gruvbox_color("GruvboxFg1")
+local fg4 = get_gruvbox_color("GruvboxFg4")
+
+local yellow = get_gruvbox_color("GruvboxYellow")
+local blue = get_gruvbox_color("GruvboxBlue")
+local aqua = get_gruvbox_color("GruvboxAqua")
+local orange = get_gruvbox_color("GruvboxOrange")
+local red = get_gruvbox_color("GruvboxRed")
+local green = get_gruvbox_color("GruvboxGreen")
+
+local p = {
+  normal = {
+    right = {{bg0, fg4}, {fg4, bg2}},
+    left = {{bg0, fg4, "bold"}, {fg4, bg2}},
+    middle = {{fg4, bg1}},
+    error = {{bg0, red}},
+    warning = {{bg0, yellow}},
+  },
+  inactive = {
+    right = {{bg4, bg1}, {bg4, bg1}},
+    left = {{bg4, bg1}, {bg4, bg1}},
+    middle = {{bg4, bg1}},
+  },
+  insert = {
+    right = {{bg0, blue}, {fg1, bg2}},
+    left = {{bg0, blue, "bold"}, {fg1, bg2}},
+    middle = {{fg4, bg1}},
+  },
+  terminal = {
+    right = {{bg0, green}, {fg1, bg2}},
+    left = {{bg0, green, "bold"}, {fg1, bg2}},
+    middle = {{fg4, bg1}},
+  },
+  replace = {
+    right = {{bg0, aqua}, {fg1, bg2}},
+    left = {{bg0, aqua, "bold"}, {fg1, bg2}},
+    middle = {{fg4, bg1}},
+  },
+  visual = {
+    right = {{bg0, orange}, {bg0, bg4}},
+    left = {{bg0, orange, "bold"}, {bg0, bg4}},
+    middle = {{fg4, bg1}},
+  },
+  tabline = {
+    right = {{bg0, orange}},
+    left = {{fg4, bg2}},
+    middle = {{bg0, bg4}},
+    tabsel = {{bg0, fg4}},
+  },
+}
+
+M.start = function()
+  if not vim.fn.exists(vim.g.lightline) then
+    return
+  end
+
+  if vim.g.loaded_lightline then
+    vim.g["lightline#colorscheme#gruvbox#palette"] =
+      vim.api.nvim_call_function("lightline#colorscheme#flatten", {p})
+  end
+end
+
+return M