Emacs：'查找文件'而不改变工作目录 [英] Emacs: 'Find file' without changing working directory

问题描述

我的c / c ++项目倾向于具有相当简单的目录结构，分离出src，include，bin等。我也倾向于在最上面的目录中有一个master makefile。当在Emacs中这样工作时，我总是必须发出 Mx cd uppermost-dir ，以便我的编译快捷方式按预期工作。

My c/c++ projects tend to have fairly straightforward directory structures which separate out src, include, bin, etc. I also tend to have a master makefile in the uppermost directory. When working like this in Emacs, I always have to issue M-x cd uppermost-dir in order for my compilation shortcuts to work as expected.

有没有办法保持当前目录与启动Emacs的目录相同？也就是说，当我打开一个文件时，我可以停止Emacs更改它的工作目录吗？

Is there a way to keep the current directory the same as the one from which I launch Emacs? That is, can I stop Emacs from changing it's working directory when I open a file?

或者，有没有什么关键的，我缺少一个目录的典型工作流程

Alternatively, is there something crucial I'm missing about the typical workflow with a directory hierarchiy like this exclusively in Emacs?

推荐答案

一种方法可以做到这一点：

One way you can do this:

在项目调用的根目录中创建一个文件 .dir-locals.el

Make a file in the root directory of your project call .dir-locals.el

当您在目录中打开文件或它的子目录时，将会被读取。

This will be read whenever you open a file in the directory or it's sub-directories.

为了备份到根文件夹并运行make作为编译命令，只需将它放在 .dir-locals.el 文件中。

In order to back up to the root folder and run make as your compile command, just put this in the .dir-locals.el file.

((nil . ((compile-command . "cd ~/mycode/c/; make"))))

nil 是为（nil表示任何）设置局部变量的模式，所以为了仅仅使用C ++模式，您可以这样做...

nil is the mode to set local variables for (nil means any), so to do this for only C++ mode you could do this instead ...

((c++-mode . ((compile-command . "cd ~/mycode/c/; make"))))

显然，您可以设置更多选项的列表，说运行ant的java文件等等。

Obviously you can set up a list with more options, say running ant for java files and so on.

emacs目录本地人的手册

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