File: utils.org

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rg-el 2.4.0-2
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#+MACRO: elisp src_elisp[:results value raw :exports results]{$1}
#+MACRO: elisp_code src_elisp[:results value :exports results]{$1}

#+NAME: utils
#+BEGIN_SRC elisp :results output drawer :exports none
  (require 'cl-lib)
  (require 'cus-edit)
  (require 'edmacro)
  (require 'help)
  (require 'package)
  (require 'rg)

  (defvar rg-package-version nil)
  (defvar rg-package-deps nil)
  (rg-enable-menu)

  (defun rg-package-info ()
    (let ((file-name "../rg.el"))
      (with-temp-buffer
        (insert-file-contents file-name)
        (condition-case nil
            (package-buffer-info)
          (error "Invalid package")))))

  (defun rg-extract-package-info ()
    (let ((desc (rg-package-info)))
      (setf rg-package-version (package-version-join (package-desc-version desc)))
      (dolist (req (package-desc-reqs desc))
        (push (cons (car req) (package-version-join (cadr req))) rg-package-deps))))

  (defun rg-package-deps ()
    (when (not rg-package-deps)
      (rg-extract-package-info))
    rg-package-deps)

  (defun rg-package-version ()
    (when (not rg-package-version)
      (rg-extract-package-info))
    rg-package-version)

  (defun rg-emacs-min-version ()
    (cdr (assq 'emacs (rg-package-deps))))

  (defun rg-default-keymap ()
    (if rg-use-transient-menu
        "rg-menu"
      "rg-global-map"))

  (defun rg-custom-info (sym &optional default)
    (let* ((type (custom-variable-type sym))
           (value (or default
                      (if (and (consp type) (eq (car type) 'key-sequence))
                          (edmacro-format-keys (symbol-value sym))
                        (symbol-value sym)))))
      (format "%s\n:default: %S" sym value)))

  (defun rg-face-info (face)
    (cl-assert (facep face))
    (format "%s\n:default: %s" face (face-attribute face :inherit)))

  (defun rg-key-for-command (sym map &optional wanted-key)
    (cl-assert (commandp sym))
    (when-let ((keys (where-is-internal sym (symbol-value map))))
      (let* ((key (edmacro-format-keys (or
                                        (and wanted-key
                                             (cl-find wanted-key keys :test 'equal))
                                        (car keys))))
             (prefix (when (and key
                                (eq map 'rg-global-map))
                       (edmacro-format-keys rg-keymap-prefix))))
        (if prefix
            (format "%s %s" prefix key)
          (format "%s" key)))))

  (defun rg-command-info (sym map &optional wanted-key)
    (if-let ((key-sequence (rg-key-for-command sym map wanted-key)))
        (format "%s\n:kbd: %s" sym key-sequence)
      (format "%s\n" sym)))

  (defun rg-function-info (sym)
    (cl-assert (fboundp sym))
    (let ((args (mapconcat #'symbol-name (help-function-arglist sym) " ")))
      (format "(%s %s)\n" sym args)))
#+END_SRC

call_utils()

#+BEGIN_EXPORT rst
.. default-domain:: el
#+END_EXPORT