WezTerm configs

wezterm.lua

local wezterm = require("wezterm")

local config = wezterm.config_builder()

config.front_end = "WebGpu"

-- One Dark colorscheme for background color
config.color_scheme = "OneHalfDark"

-- Font settings
config.font = wezterm.font({ family = "JetBrains Mono" })
config.font_rules = {
	{
		intensity = "Bold",
		italic = true,
		font = wezterm.font({
			family = "Victor Mono",
			weight = "Bold",
			style = "Italic",
		}),
	},
	{
		italic = true,
		intensity = "Half",
		font = wezterm.font({
			family = "Victor Mono",
			weight = "DemiBold",
			style = "Italic",
		}),
	},
	{
		italic = true,
		intensity = "Normal",
		font = wezterm.font({
			family = "Victor Mono",
			style = "Italic",
			weight = "Medium",
		}),
	},
}

config.font_size = 15

config.underline_thickness = "1.5pt"

-- nvim doesn't put space after Nerd Font icons. This makes them large regardless.
config.allow_square_glyphs_to_overflow_width = "Always"
-- Fix font DPI issues on MacOS
config.freetype_load_flags = "NO_HINTING"

-- Window opacity
local opacity_step = 0.1
local min_opacity = 0.0
local max_opacity = 1.0
local default_opacity = 0.8

-- Define the file path for storing the opacity value
local opacity_file_path = wezterm.home_dir .. "/.config/wezterm/opacity"

local function read_opacity_from_file()
	local file = io.open(opacity_file_path, "r")
	if file then
		local opacity = file:read("*n")
		file:close()
		return opacity
	end
	return default_opacity -- Default to max_opacity if file doesn't exist
end

local function write_opacity_to_file(opacity)
	local file = io.open(opacity_file_path, "w")
	if file then
		file:write(string.format("%.2f\n", opacity))
		file:close()
	end
end

local function cycle_opacity(window)
	local current_opacity = read_opacity_from_file()
	local new_opacity = current_opacity - opacity_step
	if new_opacity < min_opacity then
		new_opacity = max_opacity
	end

	window:set_config_overrides({
		window_background_opacity = new_opacity,
	})

	-- Write new opacity to the file
	write_opacity_to_file(new_opacity)
end

wezterm.on("toggle-opacity", function(window, pane)
	cycle_opacity(window)
end)

config.window_background_opacity = read_opacity_from_file()
config.macos_window_background_blur = 10

config.keys = {
	{
		key = "t",
		mods = "CTRL|SHIFT|OPT|CMD",
		action = wezterm.action.EmitEvent("toggle-opacity"),
	},
}
-- No tab bar and window title
config.enable_tab_bar = false
config.window_decorations = "RESIZE"

-- Make right option key on Mac send alt
config.send_composed_key_when_left_alt_is_pressed = true
config.send_composed_key_when_right_alt_is_pressed = false

-- Intergration with folke/zen-mode.nvim
wezterm.on("user-var-changed", function(window, pane, name, value)
	local overrides = window:get_config_overrides() or {}
	if name == "ZEN_MODE" then
		local incremental = value:find("+")
		local number_value = tonumber(value)
		if incremental ~= nil then
			while number_value > 0 do
				window:perform_action(wezterm.action.IncreaseFontSize, pane)
				number_value = number_value - 1
			end
			overrides.enable_tab_bar = false
		elseif number_value < 0 then
			window:perform_action(wezterm.action.ResetFontSize, pane)
			overrides.font_size = nil
			overrides.enable_tab_bar = true
		else
			overrides.font_size = number_value
			overrides.enable_tab_bar = false
		end
	end
	window:set_config_overrides(overrides)
end)

return config