如何访问通过 `cargo install` 安装的 Rust/Cargo 项目中包含的资产? [英] How do I access assets included in a Rust/Cargo project installed via `cargo install`?

问题描述

我有一个项目，其中包含一些我需要在运行时找到的相关资产(Lua 脚本).这可能意味着两件事:

I have a project which includes some associated assets (Lua scripts), which I need to find at runtime. This can mean two things:

• 在开发过程中(例如cargo run)，我想找到相对于源代码
• 当通过 cargo install 安装时，资产也应该安装在某个地方，并且可执行文件的安装版本应该找到已安装的资产.

• During development (e.g. cargo run), I want to find it relative to the source
• When installed via cargo install, the assets should be installed somewhere as well, and the installed version of the executable should find the installed assets.

我知道可以使用诸如 include_str!() 之类的选项将文本文件编译为二进制文件，但在这种情况下我不想这样做.

I know about the option to use something like include_str!() to compile text files into the binary, but I don't want to do that in this case.

据我所知，cargo install doesn'目前不支持安装可执行文件以外的任何东西，这是第一个问题，尽管我不介意有一个包装器安装脚本来帮助.

As far as I can tell, cargo install doesn't have any support for installing anything other than the executable at the moment, which is the first problem, though I don't mind having a wrapper install script to help.

推荐答案

根据你想要的结构，你可以尝试混合使用 env::current_dir 获取当前目录，如果没有找到任何内容，您可以尝试使用可执行文件路径并从那里加载东西.你可以通过 env::current_exe.

Depending on how you want it structured, you could try a mix of env::current_dir to get the current directory, and if that doesn't find anything you can try using the executable path and load things from there. You get that with env::current_exe.

我看到了困难，那就是 cargo install only 将二进制文件复制到 .cargo/bin 中，这意味着额外的资源留在位于 .cargo/registry/src/... 的源文件夹.

I see the difficulty, which is that cargo install only copies the binary into .cargo/bin which means that additional resources stay in the source folder located at .cargo/registry/src/....

在这种情况下，我同意@ljedrzinclude! 似乎是唯一的方法.

In this case, I agree with @ljedrz that include! seems to be the only way.

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