emacs-config/oni-csharp/oni-csharp.el

;;; oni-csharp.el --- C# Configuration                   -*- lexical-binding: t; -*-

;; Copyright (C) 2019  Tom Willemse

;; Author: Tom Willemse <tom@ryuslash.org>
;; Keywords: local
;; Version: 2023.0525.001714
;; Package-Requires: (csharp-mode oni-company oni-flycheck oni-yasnippet oni-hydra oni-lsp oni-smartparens)

;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; My C# configuration. This configuration enables ‘rainbow-delimiters-mode’.

;;; Code:

(require 'company)
(require 'csharp-mode)
(require 'hydra)
(require 'yasnippet)

(defconst oni-csharp-root
  (file-name-directory
   (or load-file-name
       (buffer-file-name)))
  "The directory where ‘oni-csharp’ was loaded from.")

(defconst oni-csharp-snippets-dir
  (expand-file-name "snippets" oni-csharp-root)
  "The directory where ‘oni-csharp’ stores its snippets.")

(defcustom oni-csharp-devenv-executable
  "\"C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Professional\\Common7\\IDE\\devenv.com\""
  "The location of the devenv.com executable."
  :group 'oni-csharp)

(defvar oni-csharp--projects (make-hash-table :test 'equal))

(defhydra oni-csharp-hydra (:color teal :hint nil)
  "
^Compile^
^^------------
_cp_: Project
_cs_: Solution
^^
"
  ("cp" oni-csharp-compile-project)
  ("cs" oni-csharp-compile-solution))

(defun oni-csharp-compile-solution ()
  (interactive)
  (let ((compile-command (concat oni-csharp-devenv-executable " /Build Debug " (oni-csharp-locate-dominating-file-wildcard "*.sln"))))
    (compile compile-command)))

(defun oni-csharp-locate-dominating-file-wildcard (filename)
  (let (file-list
        (default-directory default-directory))
    (while (and (null file-list)
                (string-prefix-p (projectile-project-root) default-directory))
      (setq file-list (file-expand-wildcards filename t)
            default-directory (file-name-directory (directory-file-name default-directory))))
    (car file-list)))

(defun oni-csharp-compile-project ()
  (interactive)
  (let ((compile-command (concat oni-csharp-devenv-executable " /Build Debug " (oni-csharp-locate-dominating-file-wildcard "*.sln") " /project " (oni-csharp-locate-dominating-file-wildcard "*.csproj"))))
    (compile compile-command)))

(defun oni-csharp--auto-fill-mode ()
  "Enable ‘auto-fill-mode’ only for comments."
  (setq-local comment-auto-fill-only-comments t)
  (auto-fill-mode))

(defun oni-csharp-snippets-initialize ()
  "Initialize the snippets for ‘oni-csharp’."
  (when (boundp 'yas-snippet-dirs)
    (add-to-list 'yas-snippet-dirs oni-csharp-snippets-dir t))
  (yas-load-directory oni-csharp-snippets-dir))

(defun oni-csharp--update-style ()
  "Set style rules according to personal (or recommended) preference."
  (c-set-offset 'arglist-intro '+)
  (c-set-offset 'arglist-cont-nonempty '+))

(add-hook 'csharp-mode-hook 'abbrev-mode)
(add-hook 'csharp-mode-hook 'company-mode)
(add-hook 'csharp-mode-hook 'display-fill-column-indicator-mode)
(add-hook 'csharp-mode-hook 'electric-indent-local-mode)
(add-hook 'csharp-mode-hook 'flycheck-mode)
(add-hook 'csharp-mode-hook 'lsp)
(add-hook 'csharp-mode-hook 'oni-csharp--auto-fill-mode)
(add-hook 'csharp-mode-hook 'oni-csharp--update-style)
(add-hook 'csharp-mode-hook 'rainbow-delimiters-mode)
(add-hook 'csharp-mode-hook 'smartparens-mode)

(define-key csharp-mode-map (kbd "C-c SPC") 'oni-csharp-hydra/body)

(define-abbrev csharp-mode-abbrev-table "and" "&&" nil :system t)
(define-abbrev csharp-mode-abbrev-table "or" "||" nil :system t)

;;;###autoload
(add-to-list 'auto-mode-alist '("\\.xaml\\'" . nxml-mode))

;;;###autoload
(add-to-list 'auto-mode-alist '("\\.targets\\'" . nxml-mode))

;;;###autoload
(add-to-list 'auto-mode-alist '("\\.proj\\'". nxml-mode))

;;;###autoload
(add-to-list 'auto-mode-alist '("\\.csproj\\'" . nxml-mode))

(with-eval-after-load 'autoinsert
  (add-to-list 'auto-insert-alist
               `(,(rx ".proj" string-end)
                 nil
                 "<Project xmlns=\"http://schemas.microsoft.com/developer/msbuild/2003\" ToolsVersion=\"4.0\">\n  " _ "\n</Project>")))

(with-eval-after-load 'lsp-csharp
  (when (eq system-type 'windows-nt)
    (setq lsp-csharp-omnisharp-roslyn-server-dir
          (expand-file-name "~/scoop/apps/omnisharp/current"))))

(with-eval-after-load 'compile
  (add-to-list 'compilation-error-regexp-alist
               `(,(rx (minimal-match (one-or-more digit)) ">"
                      (group (any alpha)
                             ":\\"
                             (minimal-match (one-or-more (any alpha "\\" "."))))
                      "("
                      (group (minimal-match (one-or-more digit)))
                      ","
                      (group (minimal-match (one-or-more digit)))
                      ","
                      (group (minimal-match (one-or-more digit)))
                      ","
                      (group (minimal-match (one-or-more digit)))
                      "): "
                      (group "error" (one-or-more any)))
                 1 (2 . 4) (3 . 5) 2 6)))

(with-eval-after-load 'csharp-mode
  (with-eval-after-load 'yasnippet
    (oni-csharp-snippets-initialize)))

;;; Solution mode

(defun oni-csharp-collect-project-names ()
  "Go through the current buffer and collect all the project names."
  (interactive)
  (clrhash oni-csharp--projects)
  (save-excursion
    (goto-char (point-min))
    (while (re-search-forward
            (rx bol
                "Project(\"{"
                (group (minimal-match (1+ (or alphanumeric "-"))))
                "}\") = \""
                (group (minimal-match (1+ any)))
                "\", \""
                (minimal-match (1+ any))
                "\", \"{"
                (group (minimal-match (1+ any)))
                "}\""
                eol)
            nil
            :noerror)
      (puthash (match-string-no-properties 3)
               (match-string-no-properties 2)
               oni-csharp--projects))))

(defun oni-csharp-display-project-names ()
  "Display the project names in the current buffer."
  (interactive)
  (save-excursion
    (goto-char (point-min))
    (while (re-search-forward
            (rx bol
                (zero-or-more whitespace)
                (group
                 "{"
                 (group (minimal-match (one-or-more (or alphanumeric "-"))))
                 "}")
                " = "
                (group
                 "{"
                 (group (minimal-match (one-or-more (or alphanumeric "-"))))
                 "}")
                eol)
            nil
            :noerror)
      (add-text-properties
       (match-beginning 1) (match-end 1)
       (list 'display (gethash (match-string 2) oni-csharp--projects)
             'face 'font-lock-variable-name-face
             'help-echo (buffer-substring-no-properties
                         (match-beginning 1) (match-end 1))
             'intangile nil))
      (add-text-properties
       (match-beginning 3) (match-end 3)
       (list 'display (gethash (match-string 4) oni-csharp--projects)
             'face 'font-lock-variable-name-face
             'help-echo (buffer-substring-no-properties
                         (match-beginning 3) (match-end 3)))))))

(define-derived-mode csharp-solution-mode prog-mode "Sln"
  "A major mode for viewing and editing C# ‘.sln’ files."
  (oni-csharp-collect-project-names)
  (oni-csharp-display-project-names))

;;;###autoload
(add-to-list 'auto-mode-alist `(,(rx ".sln" eos) . csharp-solution-mode))

(defun oni-csharp-add-file-to-project ()
  (interactive)
  (let* ((file-name (buffer-file-name))
         (project-dir (locate-dominating-file file-name
                                              (lambda (file)
                                                (if (file-directory-p file)
                                                    (directory-files file nil (rx ".csproj" eos))
                                                  (string-suffix-p ".csproj" file)))))
         (project-files (directory-files project-dir nil (rx ".csproj" eos)))
         (project-file (cl-case (length project-files)
                         (0 (error "No project files found in %s" project-dir))
                         (1 (car project-files))
                         (t (completing-read "Which project file? " project-files))))
         (relative-file-name (file-relative-name file-name project-dir))
         (project-file-absolute-path (expand-file-name project-file project-dir)))
    (with-current-buffer (find-file-noselect project-file-absolute-path)
      (save-excursion
        (re-search-forward (rx "<Compile"))
        (end-of-line)
        (when (and buffer-file-read-only
                   (vc-registered project-file-absolute-path))
          (vc-checkout project-file-absolute-path))
        (insert "\n" "<Compile Include=\"" (string-replace "/" "\\" relative-file-name) "\" />")
        (re-search-backward (rx "<ItemGroup>"))
        (forward-line)
        (let ((start (line-beginning-position)))
          (re-search-forward (rx "</ItemGroup>"))
          (forward-line -1)
          (indent-region start (line-end-position))
          (sort-lines nil start (line-end-position)))
        (save-buffer)))))

(provide 'oni-csharp)
;;; oni-csharp.el ends here