feat(nvim-silicon.lua): add support for generating code images using Silicon

feat(nvim-silicon.lua): create configuration to use Silicon for code image generation

lua/absolute/after/nvim-silicon.lua

@@ -0,0 +1,69 @@
+local silicon = require("silicon")
+
+local home = os.getenv("HOME")
+
+local function generate_file_name()
+    -- Generate a file name
+    local file_name = os.date("!%Y-%m-%dT%H-%M-%S") .. "_code.png"
+    return "./" .. file_name
+end
+
+silicon.setup({
+    font = "JetBrains Mono=34;Noto Emoji",
+    output = generate_file_name,
+})
+
+-- {
+-- 	-- the font settings with size and fallback font
+-- 	-- the theme to use, depends on themes available to silicon
+-- 	theme = "gruvbox-dark",
+-- 	-- the background color outside the rendered os window
+-- 	background = "#076678",
+-- 	-- a path to a background image
+-- 	background_image = nil,
+-- 	-- the paddings to either side
+-- 	pad_horiz = 100,
+-- 	pad_vert = 80,
+-- 	-- whether to have the os window rendered with rounded corners
+-- 	no_round_corner = false,
+-- 	-- whether to put the close, minimize, maximise traffic light controls on the border
+-- 	no_window_controls = false,
+-- 	-- whether to turn off the line numbers
+-- 	no_line_number = false,
+-- 	-- with which number the line numbering shall start, the default is 1, but here a
+-- 	-- function is used to return the actual source code line number
+-- 	line_offset = function(args)
+-- 		return args.line1
+-- 	end,
+-- 	-- the distance between lines of code
+-- 	line_pad = 0,
+-- 	-- the rendering of tab characters as so many space characters
+-- 	tab_width = 4,
+-- 	-- with which language the syntax highlighting shall be done, should be a function
+-- 	-- that returns either a language name or an extension like ".js"
+-- 	language = function()
+-- 		return vim.bo.filetype
+-- 	end,
+-- 	-- if the shadow below the os window should have be blurred
+-- 	shadow_blur_radius = 16,
+-- 	-- the offset of the shadow in x and y directions
+-- 	shadow_offset_x = 8,
+-- 	shadow_offset_y = 8,
+-- 	-- the color of the shadow
+-- 	shadow_color = "#100808",
+-- 	-- whether to strip of superfluous leading whitespace
+-- 	gobble = true,
+-- 	-- a string or function that defines the path to the output image
+-- 	output = function()
+-- 		return "./" .. os.date("!%Y-%m-%dT%H-%M-%S") .. "_code.png"
+-- 	end,
+-- 	-- whether to put the image onto the clipboard, may produce an error if run on WSL2
+-- 	to_clipboard = false,
+-- 	-- the silicon command, put an absolute location here, if the command is not in your PATH
+-- 	command = "silicon",
+-- 	-- a string or function returning a string that defines the title showing in the image
+-- 	-- only works in silicon versions greater than v0.5.1
+-- 	window_title = function()
+-- 		return vim.fn.fnamemodify(vim.api.nvim_buf_get_name(vim.api.nvim_get_current_buf()), ":t")
+-- 	end,
+-- }