Add snippets for ‘oni-python’

1 files changed, 110 insertions, 0 deletions

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+;;; oni-python.el --- Python configuration           -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2019  Tom Willemse
+
+;; Author: Tom Willemse <tom@ryuslash.org>
+;; Keywords: local
+;; Version: 20190828000139
+;; Package-Requires: (oni-yasnippet oni-company company-jedi oni-fci oni-flycheck rainbow-delimiters reformatter traad hydra)
+
+;; 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 Python configuration.
+;;
+;; It features:
+;;   - Completion
+;;   - Syntax checking
+;;   - Right margin
+;;   - Delimiter balancing
+;;   - Automatic reformatting
+;;   - Delimiter highlighting
+
+;;; Code:
+
+(require 'company)
+(require 'hydra)
+(require 'python)
+(require 'reformatter)
+(require 'traad)
+(require 'whitespace)
+(require 'yasnippet)
+
+(autoload 'hl-indent-mode "hl-indent-mode")
+
+(defconst oni-python-root
+  (file-name-directory
+   (or load-file-name
+       (buffer-file-name)))
+  "The directory where ‘oni-python’ was loaded from.")
+
+(defconst oni-python-snippets-dir
+  (expand-file-name "snippets" oni-python-root)
+  "The directory where ‘oni-python’ stores its snippets.")
+
+(defun oni-python-set-fill-column ()
+  "Set the `fill-column' and `comment-fill-column' for the current buffer.
+
+The values are taken from the PEP8 coding standard for Python."
+  (setq-local fill-column 80)
+  (setq-local comment-fill-column 72))
+
+;;;###autoload
+(defun oni-python-snippets-initialize ()
+  "Initialize the snippets for ‘oni-python’."
+  (when (boundp 'yas-snippet-dirs)
+    (add-to-list 'yas-snippet-dirs oni-python-snippets-dir))
+  (yas-load-directory oni-python-snippets-dir))
+
+(defun oni-python-whitespace-mode ()
+  "Set the `whitespace-style' to show the relevat whitespace.
+In Python buffers it should show any tabs being used and and used
+for indentation."
+  (setq-local whitespace-style '(face tabs))
+  (whitespace-mode))
+
+(add-to-list 'company-backends 'company-jedi)
+
+(reformatter-define python-black
+  :program "black"
+  :args `("--line-length" ,(number-to-string fill-column) "-")
+  :lighter ""
+  :group 'python-black)
+
+(defhydra python-refactor-hydra (:color blue)
+  ("r" traad-rename "Rename object")
+  ("m" traad-extract-method "Extract method"))
+
+(define-key python-mode-map (kbd "C-c r") 'python-refactor-hydra/body)
+
+(add-hook 'python-mode-hook 'electric-indent-local-mode)
+(add-hook 'python-mode-hook 'electric-pair-local-mode)
+(add-hook 'python-mode-hook 'flycheck-mode)
+(add-hook 'python-mode-hook 'fci-mode)
+(add-hook 'python-mode-hook 'company-mode)
+(add-hook 'python-mode-hook 'rainbow-delimiters-mode)
+(add-hook 'python-mode-hook 'python-black-on-save-mode)
+(add-hook 'python-mode-hook 'oni-python-set-fill-column)
+(add-hook 'python-mode-hook 'oni-python-whitespace-mode)
+
+;;;###autoload
+(with-eval-after-load 'python
+  (with-eval-after-load 'yasnippet
+    (oni-python-snippets-initialize)))
+
+;;;###autoload(with-eval-after-load 'python (require 'oni-python))
+
+(provide 'oni-python)
+;;; oni-python.el ends here