lapis配置之 lua語法

Lua 配置語法

配置示例

Lapis 的配置模塊提供了對遞歸合併 table 的支持。

例如，咱們能夠定義一個基本配置，而後覆蓋更多具體的配置聲明中的一些值：

-- config.lua
local config = require("lapis.config")

config({"development", "production"}, {
  host = "example.com",
  email_enabled = false,
  postgres = {
    host = "localhost",
    port = "5432",
    database = "my_app"
  }
})

config("production", {
  email_enabled = true,
  postgres = {
    database = "my_app_prod"
  }
})

這將產生如下兩個配置結果（默認值省略）：

-- "development"
{
  host = "example.com",
  email_enabled = false,
  postgres = {
    host = "localhost",
    port = "5432",
    database = "my_app",
  },
  _name = "development"
}

-- "production"

{
  host = "example.com",
  email_enabled = true,
  postgres = {
    host = "localhost",
    port = "5432",
    database = "my_app_prod"
  },
  _name = "production"
}

您能夠在相同的配置名稱上調用 config 函數屢次，每次將傳入的表合併到配置中。