feat(extra): add gitui theme (#397)

* feat: add gitui theme

* fix: command bar extra lines bg

lua/tokyonight/extra/gitui.lua

@@ -0,0 +1,56 @@
+local util = require("tokyonight.util")
+
+local function hex2rgb(key, value)
+  local hex = value:gsub("#", "")
+
+  local r = tonumber(hex:sub(1, 2), 16)
+  local g = tonumber(hex:sub(3, 4), 16)
+  local b = tonumber(hex:sub(5, 6), 16)
+
+  return string.format("Rgb(%s,%s,%s), // %s %s", r, g, b, key, value)
+end
+
+local M = {}
+
+--- @param colors ColorScheme
+function M.generate(colors)
+  local gitui_colors = {}
+  for k, v in pairs(colors) do
+    if type(v) == "string" then
+      gitui_colors[k] = hex2rgb(k, v)
+    end
+  end
+
+  local gitui = util.template(
+    [[
+(
+  selected_tab: ${magenta}
+  command_fg: ${comment}
+  selection_bg: ${bg_highlight}
+  selection_fg: ${cyan}
+  cmdbar_bg: ${bg}
+  cmdbar_extra_lines_bg: ${bg}
+  disabled_fg: ${comment}
+  diff_line_add: ${green}
+  diff_line_delete: ${red}
+  diff_file_added: ${green1}
+  diff_file_removed: ${red1}
+  diff_file_moved: ${magenta2}
+  diff_file_modified: ${yellow}
+  commit_hash: ${magenta}
+  commit_time: ${teal}
+  commit_author: ${green}
+  danger_fg: ${red}
+  push_gauge_bg: ${bg}
+  push_gauge_fg: ${fg}
+  tag_fg: ${magenta2}
+  branch_fg: ${yellow}
+)
+]],
+    gitui_colors
+  )
+
+  return gitui
+end
+
+return M

lua/tokyonight/extra/init.lua

@@ -23,6 +23,7 @@ M.extras = {
   windows_terminal = {ext = "json", url = "https://aka.ms/terminal-documentation", label = "Windows Terminal"},
   zathura = {ext = "zathurarc", url = "https://pwmt.org/projects/zathura/", label = "Zathura"},
   dunst = {ext = "dunstrc", url = "https://dunst-project.org/", label = "Dunst"},
+  gitui = {ext = "ron", url = "https://github.com/extrawurst/gitui", label = "GitUI"},
 }
 
 local function write(str, fileName)