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emacs/code/elpa/magit-20220425.1153/magit-bookmark.el
2022-04-25 18:51:31 -04:00

206 lines
7.6 KiB
EmacsLisp

;;; magit-bookmark.el --- Bookmark support for Magit -*- lexical-binding:t -*-
;; Copyright (C) 2008-2022 The Magit Project Contributors
;; Inspired by an earlier implementation by Yuri Khan.
;; Author: Jonas Bernoulli <jonas@bernoul.li>
;; Maintainer: Jonas Bernoulli <jonas@bernoul.li>
;; SPDX-License-Identifier: GPL-3.0-or-later
;; Magit 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.
;;
;; Magit 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 Magit. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Support for bookmarks for most Magit buffers.
;;; Code:
(require 'magit)
(require 'bookmark)
;;; Core
(defun magit--make-bookmark ()
"Create a bookmark for the current Magit buffer.
Input values are the major-mode's `magit-bookmark-name' method,
and the buffer-local values of the variables referenced in its
`magit-bookmark-variables' property."
(if (plist-member (symbol-plist major-mode) 'magit-bookmark-variables)
;; `bookmark-make-record-default's return value does not match
;; (NAME . ALIST), even though it is used as the default value
;; of `bookmark-make-record-function', which states that such
;; functions must do that. See #4356.
(let ((bookmark (cons nil (bookmark-make-record-default 'no-file))))
(bookmark-prop-set bookmark 'handler #'magit--handle-bookmark)
(bookmark-prop-set bookmark 'mode major-mode)
(bookmark-prop-set bookmark 'filename (magit-toplevel))
(bookmark-prop-set bookmark 'defaults (list (magit-bookmark-name)))
(dolist (var (get major-mode 'magit-bookmark-variables))
(bookmark-prop-set bookmark var (symbol-value var)))
(bookmark-prop-set
bookmark 'magit-hidden-sections
(--keep (and (oref it hidden)
(cons (oref it type)
(if (derived-mode-p 'magit-stash-mode)
(string-replace magit-buffer-revision
magit-buffer-revision-hash
(oref it value))
(oref it value))))
(oref magit-root-section children)))
bookmark)
(user-error "Bookmarking is not implemented for %s buffers" major-mode)))
;;;###autoload
(defun magit--handle-bookmark (bookmark)
"Open a bookmark created by `magit--make-bookmark'.
Call the `magit-*-setup-buffer' function of the the major-mode
with the variables' values as arguments, which were recorded by
`magit--make-bookmark'. Ignore `magit-display-buffer-function'."
(let ((buffer (let ((default-directory (bookmark-get-filename bookmark))
(mode (bookmark-prop-get bookmark 'mode))
(magit-display-buffer-function #'identity)
(magit-display-buffer-noselect t))
(apply (intern (format "%s-setup-buffer"
(substring (symbol-name mode) 0 -5)))
(--map (bookmark-prop-get bookmark it)
(get mode 'magit-bookmark-variables))))))
(set-buffer buffer) ; That is the interface we have to adhere to.
(when-let ((hidden (bookmark-prop-get bookmark 'magit-hidden-sections)))
(with-current-buffer buffer
(dolist (child (oref magit-root-section children))
(if (member (cons (oref child type)
(oref child value))
hidden)
(magit-section-hide child)
(magit-section-show child)))))
;; Compatibility with `bookmark+' package. See #4356.
(when (bound-and-true-p bmkp-jump-display-function)
(funcall bmkp-jump-display-function (current-buffer)))
nil))
(cl-defgeneric magit-bookmark-name ()
"Return name for bookmark to current buffer."
(format "%s%s"
(substring (symbol-name major-mode) 0 -5)
(if-let ((vars (get major-mode 'magit-bookmark-variables)))
(cl-mapcan (lambda (var)
(let ((val (symbol-value var)))
(if (and val (atom val))
(list val)
val)))
vars)
"")))
;;; Diff
;;;; Diff
(put 'magit-diff-mode 'magit-bookmark-variables
'(magit-buffer-range-hashed
magit-buffer-typearg
magit-buffer-diff-args
magit-buffer-diff-files))
(cl-defmethod magit-bookmark-name (&context (major-mode magit-diff-mode))
(format "magit-diff(%s%s)"
(pcase (magit-diff-type)
('staged "staged")
('unstaged "unstaged")
('committed magit-buffer-range)
('undefined
(delq nil (list magit-buffer-typearg magit-buffer-range-hashed))))
(if magit-buffer-diff-files
(concat " -- " (mapconcat #'identity magit-buffer-diff-files " "))
"")))
;;;; Revision
(put 'magit-revision-mode 'magit-bookmark-variables
'(magit-buffer-revision-hash
magit-buffer-diff-args
magit-buffer-diff-files))
(cl-defmethod magit-bookmark-name (&context (major-mode magit-revision-mode))
(format "magit-revision(%s %s)"
(magit-rev-abbrev magit-buffer-revision)
(if magit-buffer-diff-files
(mapconcat #'identity magit-buffer-diff-files " ")
(magit-rev-format "%s" magit-buffer-revision))))
;;;; Stash
(put 'magit-stash-mode 'magit-bookmark-variables
'(magit-buffer-revision-hash
magit-buffer-diff-args
magit-buffer-diff-files))
(cl-defmethod magit-bookmark-name (&context (major-mode magit-stash-mode))
(format "magit-stash(%s %s)"
(magit-rev-abbrev magit-buffer-revision)
(if magit-buffer-diff-files
(mapconcat #'identity magit-buffer-diff-files " ")
(magit-rev-format "%s" magit-buffer-revision))))
;;; Log
;;;; Log
(put 'magit-log-mode 'magit-bookmark-variables
'(magit-buffer-revisions
magit-buffer-log-args
magit-buffer-log-files))
(cl-defmethod magit-bookmark-name (&context (major-mode magit-log-mode))
(format "magit-log(%s%s)"
(mapconcat #'identity magit-buffer-revisions " ")
(if magit-buffer-log-files
(concat " -- " (mapconcat #'identity magit-buffer-log-files " "))
"")))
;;;; Cherry
(put 'magit-cherry-mode 'magit-bookmark-variables
'(magit-buffer-refname
magit-buffer-upstream))
(cl-defmethod magit-bookmark-name (&context (major-mode magit-cherry-mode))
(format "magit-cherry(%s > %s)"
magit-buffer-refname
magit-buffer-upstream))
;;;; Reflog
(put 'magit-reflog-mode 'magit-bookmark-variables
'(magit-buffer-refname))
(cl-defmethod magit-bookmark-name (&context (major-mode magit-reflog-mode))
(format "magit-reflog(%s)" magit-buffer-refname))
;;; Misc
(put 'magit-status-mode 'magit-bookmark-variables nil)
(put 'magit-refs-mode 'magit-bookmark-variables
'(magit-buffer-upstream
magit-buffer-arguments))
(put 'magit-stashes-mode 'magit-bookmark-variables nil)
(cl-defmethod magit-bookmark-name (&context (major-mode magit-stashes-mode))
(format "magit-states(%s)" magit-buffer-refname))
;;; _
(provide 'magit-bookmark)
;;; magit-bookmark.el ends here