docs: migrating docs from readme

lua/build.lua

@@ -1,5 +1,39 @@
+local Docs = require("lazy.docs")
+local Util = require("lazy.util")
+
 local M = {}
 
+---@param path string
+local function dir(path)
+	local plugin, extra = path:match("([^/]+)(.*)")
+	return require("lazy.core.config").plugins[plugin].dir .. extra
+end
+
+M.extract = {
+	installation = {
+		bootstrap = {
+			lang = 'lua title="lua/config/lazy.lua"',
+			content = Docs.extract(dir("lazy.nvim/lua/lazy/init.lua"), "function M%.bootstrap%(%)\n(.-)\nend"),
+		},
+	},
+	["configuration/index"] = {
+		config = Docs.extract(dir("lazy.nvim/lua/lazy/core/config.lua"), "\nM%.defaults = ({.-\n})")
+			:gsub("%s*debug = false.\n", "\n"),
+	},
+	["configuration/highlights"] = {
+		colors = Docs.colors({
+			path = dir("lazy.nvim/lua/lazy/view/colors.lua"),
+		}),
+	},
+	["spec/examples"] = {
+		examples = Util.read_file(dir("lazy.nvim/lua/lazy/example.lua")),
+	},
+	["usage/index"] = {
+		stats = Docs.extract(dir("lazy.nvim/lua/lazy/stats.lua"), "\nM%._stats = ({.-\n})"),
+		commands = Docs.commands(),
+	},
+}
+
 local function exec(cmd)
 	return vim.system(vim.split(cmd, " "), { text = true }):wait()
 end
@@ -10,8 +44,24 @@ function M.themes()
 	exec("cp -r .nvim/plugins/tokyonight.nvim/extras/prism src/themes/prism")
 end
 
+function M.docs()
+	for name, data in pairs(M.extract) do
+		local md = "docs/" .. name .. ".md"
+		print("Building " .. md)
+		Docs.save(data, md)
+	end
+end
+
+function M._old()
+	M.save({
+		stats = M.extract("lua/lazy/stats.lua", "\nM%._stats = ({.-\n})"),
+		commands = M.commands(),
+	})
+end
+
 function M.update()
 	M.themes()
+	M.docs()
 end
 
 return M