dotfiles/modules/projects.org

#+TITLE: Projects
#+AUTHOR: Christopher James Hayward
#+EMAIL: chris@chrishayward.xyz

#+PROPERTY: header-args:emacs-lisp :tangle projects.el :comments org
#+PROPERTY: header-args:shell      :tangle no
#+PROPERTY: header-args            :results silent :eval no-export :comments org

#+OPTIONS: num:nil toc:nil todo:nil tasks:nil tags:nil
#+OPTIONS: skip:nil author:nil email:nil creator:nil timestamp:nil

#+ATTR_ORG: :width 420px
#+ATTR_HTML: :width 420px
#+ATTR_LATEX: :width 420px
[[../docs/images/2021-02-13-example-ccls.gif]]

An *IDE*[fn:1] like experience or better can be achieved within Emacs using two *Microsoft*[fn:2] open-source initiatives:

+ *Debug Adapter Protocol*[fn:3]
+ *Language Server Protocol*[fn:4]

* Code snippets

#+begin_src emacs-lisp
(use-package yasnippet
  :ensure t)
#+end_src
  
* Debug adapters

*Dap mode*[fn:5] provides support for the *Debug Adapter Protocol*[fn:3] inside of Emacs.

#+begin_src emacs-lisp
(use-package dap-mode
  :commands (dap-debug))
#+end_src

* Language servers

Support for the *Language Server Protocol*[fn:4] is added to Emacs through the *Lsp mode*[fn:6] package.

#+begin_src emacs-lisp
(use-package lsp-mode
  :commands (lsp lsp-deferred)
  :custom (lsp-idle-delay (* 5 dotfiles/idle))
          (lsp-prefer-flymake t))
#+end_src

** UI integration

*Lsp ui*[fn:7] provides user interface improvements for *Lsp mode*[fn:6].

#+begin_src emacs-lisp
(use-package lsp-ui
  :after lsp
  :custom (lsp-ui-doc-position 'at-point)
          (lsp-ui-doc-delay 0.500))
#+end_src

** Code completion

Text completion via *Company*[fn:8] =AKA= *Complete Anything*.

#+begin_src emacs-lisp
(use-package company
  :after lsp)
#+end_src

Integrate with *Lsp mode*[fn:6] to provide completion candidates through the *Language Server Protocol*[fn:4].

+ Specify the repository
+ Use asynchronous completion

#+begin_src emacs-lisp
(use-package company-lsp
  :after (lsp company)
  :custom (company-lsp-async t)
          (company-backend 'company-lsp)
  :straight (company-lsp :type git
                         :host github
                         :repo "tigersoldier/company-lsp"))
#+end_src

* Docker containers

Manage *Docker*[fn:9] containers with *Docker.el*[fn:10].

#+begin_src emacs-lisp
(use-package docker
  :commands (docker))
#+end_src

Open the container management screen with =SPC k=.

#+begin_src emacs-lisp
(dotfiles/leader
  "k" '(docker :which-key "Docker"))
#+end_src

* Project management

Configure *Projectile*[fn:11], a project interaction library for Emacs. It provides a nice set of features for operating on a project level without introducing external dependencies.

#+begin_src emacs-lisp
(use-package projectile
  :custom (projectile-project-search-path '("~/.local/source"))
  :config (projectile-mode))
#+end_src

* Footnotes

[fn:1] https://en.wikipedia.org/wiki/Integrated_development_environment

[fn:2] https://en.wikipedia.org/wiki/Microsoft_and_open_source

[fn:3] https://microsoft.github.io/debug-adapter-protocol

[fn:4] https://microsoft.github.io/language-server-protocol

[fn:5] https://emacs-lsp.github.io/dap-mode/

[fn:6] https://emacs-lsp.github.io/lsp-mode/

[fn:7] https://emacs-lsp.github.io/lsp-ui/

[fn:8] https://company-mode.github.io/

[fn:9] https://docker.com

[fn:10] https://github.com/Silex/docker.el

[fn:11] https://projectile.mx

[fn:12] https://git.zx2c4.com/password-store/tree/contrib/emacs

[fn:13] https://passwordstore.org