【工具链】风格检查器：Lua 脚本命名与规范的自动审查

---风格检查：命名与规范的规则集
local RULES = {
    { name = "命名风格",
      check = function(src)
          -- 函数名必须小写下划线或驼峰之一
          for fn in src:gmatch("function%s+([%w_%.:]+)") do
              if fn:match("[%u][%l]") and fn:match("[%l][%u]") then
                  return false, "混用命名风格: " .. fn
              end
          end
          return true
      end },
    { name = "禁用全局赋值",
      check = function(src)
          for line in src:gmatch("[^\r\n]+") do
              if line:match("^%s*%w+%s*=%s*[^=]")
                  and not line:match("local") then
                  return false, "疑似全局赋值: " ..
                      line:sub(1, 40)
              end
          end
          return true
      end },
}

function Lint.run(src)
    for _, rule in ipairs(RULES) do
        local ok, msg = rule.check(src)
        if not ok then
            return false, rule.name .. " => " .. tostring(msg)
        end
    end
    return true
end

---检查器挂进 CI 的门禁
function Lint.gate(files)
    for _, f in ipairs(files) do
        local src = Lint.read(f)
        local ok, msg = Lint.run(src)
        if not ok then
            CI.fail(f, msg)
            return false
        end
    end
    CI.pass()
    return true
end