英文:
Prevent package import for 3rd parties
问题
对于我的当前项目，我正在实现一个代码（单独的包），将其作为二进制文件的一部分，同时也可以被其他项目（二进制文件）导入，就像它是一个库一样。之所以这个包不是共享库的一部分，是因为它的功能与所提到的项目密切相关。
问题是，这个包提供了一个接口和两个实现：
- 一个直接访问底层数据库的实现，应该只在当前项目中使用
- 另一个通过HTTP请求进行导入的实现，可以在其他项目中使用（HTTP请求发送到当前项目）
我的问题是：在Go语言中是否有一种机制可以防止某个包或其子包被其他项目导入？
这主要是一个美观问题，因为在当前项目之外使用访问数据库的实现将完全无法工作（会抛出错误）。
英文:
For my current project I am implementing a code (separate package) to be part of binary which (this package) can also be imported by other projects (binaries) as if it was a library. The reason why such package is not a part of shared library is that it's functionality is tied tightly with the mentioned project.
The problem is this package provides an interface with two implementations
- one with direct access to underlying database which should only be used within the current project
- another with HTTP request to be imported in other projects (HTTP requests going to current project)
My question is: is there a mechanism in Go how to prevent certain part of package or it's sub-package from being imported by another projects?
It's mostly just an aesthetic issue since the DB-accessing implementation won't work at all (throwing errors) when used outside of current project.
答案1
得分: 4
是的，你可以使用内部目录。
> 在名为"internal"的目录中或其子目录中的代码只能被根目录为"internal"的目录树中的代码引用。
英文:
Yes, you can use an internal directory.
> Code in or below a directory named "internal" is importable only by code in the directory tree rooted at the parent of "internal".
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