github.com/golangci/go-tools@v0.0.0-20190318060251-af6baa5dc196/cmd/keyify/go-keyify.el (about)

     1  ;;; go-keyify.el --- keyify integration for Emacs
     2  
     3  ;; Copyright 2016 Dominik Honnef. All rights reserved.
     4  ;; Use of this source code is governed by a BSD-style
     5  ;; license that can be found in the LICENSE file.
     6  
     7  ;; Author: Dominik Honnef
     8  ;; Version: 1.0.0
     9  ;; Keywords: languages go
    10  ;; URL: https://github.com/dominikh/go-keyify
    11  ;;
    12  ;; This file is not part of GNU Emacs.
    13  
    14  ;;; Code:
    15  
    16  (require 'json)
    17  
    18  ;;;###autoload
    19  (defun go-keyify ()
    20    "Turn an unkeyed struct literal into a keyed one.
    21  
    22  Call with point on or in a struct literal."
    23    (interactive)
    24    (let* ((name (buffer-file-name))
    25           (point (point))
    26           (bpoint (1- (position-bytes point)))
    27           (out (get-buffer-create "*go-keyify-output")))
    28      (with-current-buffer out
    29        (setq buffer-read-only nil)
    30        (erase-buffer))
    31      (with-current-buffer (get-buffer-create "*go-keyify-input*")
    32        (setq buffer-read-only nil)
    33        (erase-buffer)
    34        (go--insert-modified-files)
    35        (call-process-region (point-min) (point-max) "keyify" t out nil
    36                             "-modified"
    37                             "-json"
    38                             (format "%s:#%d" name bpoint)))
    39      (let ((res (with-current-buffer out
    40                   (goto-char (point-min))
    41                   (json-read))))
    42        (delete-region
    43         (1+ (cdr (assoc 'start res)))
    44         (1+ (cdr (assoc 'end res))))
    45        (insert (cdr (assoc 'replacement res)))
    46        (indent-region (1+ (cdr (assoc 'start res))) (point))
    47        (goto-char point))))
    48  
    49  (provide 'go-keyify)
    50  
    51  ;;; go-keyify.el ends here