demacs “standalone version”

Stripped down version to demonstrate emacs with serve-d as dlang language server.

Installation

Install a dlang compiler with the install script on dlang.org.
Run serve-d once manually to get around all interactive questions and the compile time delay by running dub run serve-d.

The emacs specific installation is tested with emacs 27.2.

Clone the repository to ~/.demacs. One or all of the following:

make an alias that calls emacs -q --load ~/.demacs/init.el.
put .demacs in your path and call demacs.
link ~/.demacs/demacs to demacs in a directory in your path.

This should give you an emacs configuration including d-mode and eglot as language server with company mode for completion.

Usage

Start emacs now with the path to the dlang activation script that you want to use, e.g. demacs ~/dlang/dmd-2.096.1/activate my-d-project/source/app.d.

This is to 99.99999% the default emacs configuration. So the almost all emacs users will be fine. For all the other users the most importation shortcut would be C-x-c which means hold Ctrl-Key and press first x and then c.

Features

Nicest features are:

annotations while editing for lexer problems, e.g. missing semicolons, …
more semantic problems are found on safe.
eglot-format for dfmt.
project-find-file to find a file in the project.
eldoc with ddocs.
company mode for completion.

Uninstallation

If you don’t like it, simple delete ~/.demacs and you are done.

Implementation / Tuning

straight is used to make sure magit with all dependencies is available.
I added my favorite color-theme to the mix.
All customizations are done directly in init.el to keep the startup time as small as possible. Feel free to adjust the settings to your liking.

Why

I tried to reproduce a problem I had with my eglot setup which in the end boils down to something similar to what is mentioned in the straight FAQ.