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diff --git a/elpa/magit-20220503.1245/magit-wip.el b/elpa/magit-20220503.1245/magit-wip.el new file mode 100644 index 0000000..ec6b0cc --- /dev/null +++ b/elpa/magit-20220503.1245/magit-wip.el @@ -0,0 +1,453 @@ +;;; magit-wip.el --- Commit snapshots to work-in-progress refs -*- lexical-binding:t -*- + +;; Copyright (C) 2008-2022 The Magit Project Contributors + +;; 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: + +;; This library defines tree global modes which automatically commit +;; snapshots to branch-specific work-in-progress refs before and after +;; making changes, and two commands which can be used to do so on +;; demand. + +;;; Code: + +(require 'magit-core) +(require 'magit-log) + +;;; Options + +(defgroup magit-wip nil + "Automatically commit to work-in-progress refs." + :link '(info-link "(magit)Wip Modes") + :group 'magit-modes + :group 'magit-essentials) + +(defgroup magit-wip-legacy nil + "It is better to not use these modes individually." + :link '(info-link "(magit)Legacy Wip Modes") + :group 'magit-wip) + +(defcustom magit-wip-mode-lighter " Wip" + "Lighter for Magit-Wip mode." + :package-version '(magit . "2.90.0") + :group 'magit-wip + :type 'string) + +(defcustom magit-wip-after-save-local-mode-lighter "" + "Lighter for Magit-Wip-After-Save-Local mode." + :package-version '(magit . "2.1.0") + :group 'magit-wip-legacy + :type 'string) + +(defcustom magit-wip-after-apply-mode-lighter "" + "Lighter for Magit-Wip-After-Apply mode." + :package-version '(magit . "2.1.0") + :group 'magit-wip-legacy + :type 'string) + +(defcustom magit-wip-before-change-mode-lighter "" + "Lighter for Magit-Wip-Before-Change mode." + :package-version '(magit . "2.1.0") + :group 'magit-wip-legacy + :type 'string) + +(defcustom magit-wip-initial-backup-mode-lighter "" + "Lighter for Magit-Wip-Initial Backup mode." + :package-version '(magit . "2.1.0") + :group 'magit-wip-legacy + :type 'string) + +(defcustom magit-wip-merge-branch nil + "Whether to merge the current branch into its wip ref. + +If non-nil and the current branch has new commits, then it is +merged into the wip ref before creating a new wip commit. This +makes it easier to inspect wip history and the wip commits are +never garbage collected. + +If nil and the current branch has new commits, then the wip ref +is reset to the tip of the branch before creating a new wip +commit. With this setting wip commits are eventually garbage +collected. This is currently the default." + :package-version '(magit . "2.90.0") + :group 'magit-wip + :type 'boolean) + +(defcustom magit-wip-namespace "refs/wip/" + "Namespace used for work-in-progress refs. +The wip refs are named \"<namespace/>index/<branchref>\" +and \"<namespace/>wtree/<branchref>\". When snapshots +are created while the `HEAD' is detached then \"HEAD\" +is used as `branch-ref'." + :package-version '(magit . "2.1.0") + :group 'magit-wip + :type 'string) + +;;; Modes + +;;;###autoload +(define-minor-mode magit-wip-mode + "Save uncommitted changes to work-in-progress refs. + +Whenever appropriate (i.e. when dataloss would be a possibility +otherwise) this mode causes uncommitted changes to be committed +to dedicated work-in-progress refs. + +For historic reasons this mode is implemented on top of four +other `magit-wip-*' modes, which can also be used individually, +if you want finer control over when the wip refs are updated; +but that is discouraged." + :package-version '(magit . "2.90.0") + :lighter magit-wip-mode-lighter + :global t + (let ((arg (if magit-wip-mode 1 -1))) + (magit-wip-after-save-mode arg) + (magit-wip-after-apply-mode arg) + (magit-wip-before-change-mode arg) + (magit-wip-initial-backup-mode arg))) + +(define-minor-mode magit-wip-after-save-local-mode + "After saving, also commit to a worktree work-in-progress ref. + +After saving the current file-visiting buffer this mode also +commits the changes to the worktree work-in-progress ref for +the current branch. + +This mode should be enabled globally by turning on the globalized +variant `magit-wip-after-save-mode'." + :package-version '(magit . "2.1.0") + :lighter magit-wip-after-save-local-mode-lighter + (if magit-wip-after-save-local-mode + (if (and buffer-file-name (magit-inside-worktree-p t)) + (add-hook 'after-save-hook #'magit-wip-commit-buffer-file t t) + (setq magit-wip-after-save-local-mode nil) + (user-error "Need a worktree and a file")) + (remove-hook 'after-save-hook #'magit-wip-commit-buffer-file t))) + +(defun magit-wip-after-save-local-mode-turn-on () + (and buffer-file-name + (magit-inside-worktree-p t) + (magit-file-tracked-p buffer-file-name) + (magit-wip-after-save-local-mode))) + +;;;###autoload +(define-globalized-minor-mode magit-wip-after-save-mode + magit-wip-after-save-local-mode magit-wip-after-save-local-mode-turn-on + :package-version '(magit . "2.1.0") + :group 'magit-wip) + +(defun magit-wip-commit-buffer-file (&optional msg) + "Commit visited file to a worktree work-in-progress ref. + +Also see `magit-wip-after-save-mode' which calls this function +automatically whenever a buffer visiting a tracked file is saved." + (interactive) + (--when-let (magit-wip-get-ref) + (magit-with-toplevel + (let ((file (file-relative-name buffer-file-name))) + (magit-wip-commit-worktree + it (list file) + (format (cond (msg) + ((called-interactively-p 'any) + "wip-save %s after save") + (t + "autosave %s after save")) + file)))))) + +;;;###autoload +(define-minor-mode magit-wip-after-apply-mode + "Commit to work-in-progress refs. + +After applying a change using any \"apply variant\" +command (apply, stage, unstage, discard, and reverse) commit the +affected files to the current wip refs. For each branch there +may be two wip refs; one contains snapshots of the files as found +in the worktree and the other contains snapshots of the entries +in the index." + :package-version '(magit . "2.1.0") + :group 'magit-wip + :lighter magit-wip-after-apply-mode-lighter + :global t) + +(defun magit-wip-commit-after-apply (&optional files msg) + (when magit-wip-after-apply-mode + (magit-wip-commit files msg))) + +;;;###autoload +(define-minor-mode magit-wip-before-change-mode + "Commit to work-in-progress refs before certain destructive changes. + +Before invoking a revert command or an \"apply variant\" +command (apply, stage, unstage, discard, and reverse) commit the +affected tracked files to the current wip refs. For each branch +there may be two wip refs; one contains snapshots of the files +as found in the worktree and the other contains snapshots of the +entries in the index. + +Only changes to files which could potentially be affected by the +command which is about to be called are committed." + :package-version '(magit . "2.1.0") + :group 'magit-wip + :lighter magit-wip-before-change-mode-lighter + :global t) + +(defun magit-wip-commit-before-change (&optional files msg) + (when magit-wip-before-change-mode + (magit-with-toplevel + (magit-wip-commit files msg)))) + +(define-minor-mode magit-wip-initial-backup-mode + "Before saving a buffer for the first time, commit to a wip ref." + :package-version '(magit . "2.90.0") + :group 'magit-wip + :lighter magit-wip-initial-backup-mode-lighter + :global t + (if magit-wip-initial-backup-mode + (add-hook 'before-save-hook #'magit-wip-commit-initial-backup) + (remove-hook 'before-save-hook #'magit-wip-commit-initial-backup))) + +(defun magit--any-wip-mode-enabled-p () + "Return non-nil if any global wip mode is enabled." + (or magit-wip-mode + magit-wip-after-save-mode + magit-wip-after-apply-mode + magit-wip-before-change-mode + magit-wip-initial-backup-mode)) + +(defvar-local magit-wip-buffer-backed-up nil) +(put 'magit-wip-buffer-backed-up 'permanent-local t) + +;;;###autoload +(defun magit-wip-commit-initial-backup () + "Before saving, commit current file to a worktree wip ref. + +The user has to add this function to `before-save-hook'. + +Commit the current state of the visited file before saving the +current buffer to that file. This backs up the same version of +the file as `backup-buffer' would, but stores the backup in the +worktree wip ref, which is also used by the various Magit Wip +modes, instead of in a backup file as `backup-buffer' would. + +This function ignores the variables that affect `backup-buffer' +and can be used along-side that function, which is recommended +because this function only backs up files that are tracked in +a Git repository." + (when (and (not magit-wip-buffer-backed-up) + buffer-file-name + (magit-inside-worktree-p t) + (magit-file-tracked-p buffer-file-name)) + (let ((magit-save-repository-buffers nil)) + (magit-wip-commit-buffer-file "autosave %s before save")) + (setq magit-wip-buffer-backed-up t))) + +;;; Core + +(defun magit-wip-commit (&optional files msg) + "Commit all tracked files to the work-in-progress refs. + +Interactively, commit all changes to all tracked files using +a generic commit message. With a prefix-argument the commit +message is read in the minibuffer. + +Non-interactively, only commit changes to FILES using MSG as +commit message." + (interactive (list nil (if current-prefix-arg + (magit-read-string "Wip commit message") + "wip-save tracked files"))) + (--when-let (magit-wip-get-ref) + (magit-wip-commit-index it files msg) + (magit-wip-commit-worktree it files msg))) + +(defun magit-wip-commit-index (ref files msg) + (let* ((wipref (magit--wip-index-ref ref)) + (parent (magit-wip-get-parent ref wipref)) + (tree (magit-git-string "write-tree"))) + (magit-wip-update-wipref ref wipref tree parent files msg "index"))) + +(defun magit-wip-commit-worktree (ref files msg) + (when (or (not files) + ;; `update-index' will either ignore (before Git v2.32.0) + ;; or fail when passed directories (relevant for the + ;; untracked files code paths). + (setq files (seq-remove #'file-directory-p files))) + (let* ((wipref (magit--wip-wtree-ref ref)) + (parent (magit-wip-get-parent ref wipref)) + (tree (magit-with-temp-index parent (list "--reset" "-i") + (if files + ;; Note: `update-index' is used instead of `add' + ;; because `add' will fail if a file is already + ;; deleted in the temporary index. + (magit-call-git + "update-index" "--add" "--remove" + (and (magit-git-version>= "2.25.0") + "--ignore-skip-worktree-entries") + "--" files) + (magit-with-toplevel + (magit-call-git "add" "-u" "."))) + (magit-git-string "write-tree")))) + (magit-wip-update-wipref ref wipref tree parent files msg "worktree")))) + +(defun magit-wip-update-wipref (ref wipref tree parent files msg start-msg) + (cond + ((and (not (equal parent wipref)) + (or (not magit-wip-merge-branch) + (not (magit-rev-verify wipref)))) + (setq start-msg (concat "start autosaving " start-msg)) + (magit-update-ref wipref start-msg + (magit-git-string "commit-tree" "--no-gpg-sign" + "-p" parent "-m" start-msg + (concat parent "^{tree}"))) + (setq parent wipref)) + ((and magit-wip-merge-branch + (or (not (magit-rev-ancestor-p ref wipref)) + (not (magit-rev-ancestor-p + (concat (magit-git-string "log" "--format=%H" + "-1" "--merges" wipref) + "^2") + ref)))) + (setq start-msg (format "merge %s into %s" ref start-msg)) + (magit-update-ref wipref start-msg + (magit-git-string "commit-tree" "--no-gpg-sign" + "-p" wipref "-p" ref + "-m" start-msg + (concat ref "^{tree}"))) + (setq parent wipref))) + (when (magit-git-failure "diff-tree" "--quiet" parent tree "--" files) + (unless (and msg (not (= (aref msg 0) ?\s))) + (let ((len (length files))) + (setq msg (concat + (cond ((= len 0) "autosave tracked files") + ((> len 1) (format "autosave %s files" len)) + (t (concat "autosave " + (file-relative-name (car files) + (magit-toplevel))))) + msg)))) + (magit-update-ref wipref msg + (magit-git-string "commit-tree" "--no-gpg-sign" + "-p" parent "-m" msg tree)))) + +(defun magit-wip-get-ref () + (let ((ref (or (magit-git-string "symbolic-ref" "HEAD") "HEAD"))) + (and (magit-rev-verify ref) + ref))) + +(defun magit-wip-get-parent (ref wipref) + (if (and (magit-rev-verify wipref) + (equal (magit-git-string "merge-base" wipref ref) + (magit-rev-verify ref))) + wipref + ref)) + +(defun magit--wip-index-ref (&optional ref) + (magit--wip-ref "index/" ref)) + +(defun magit--wip-wtree-ref (&optional ref) + (magit--wip-ref "wtree/" ref)) + +(defun magit--wip-ref (namespace &optional ref) + (concat magit-wip-namespace namespace + (or (and ref (string-prefix-p "refs/" ref) ref) + (and-let* ((branch (and (not (equal ref "HEAD")) + (or ref (magit-get-current-branch))))) + (concat "refs/heads/" branch)) + "HEAD"))) + +(defun magit-wip-maybe-add-commit-hook () + (when (and magit-wip-merge-branch + (magit-wip-any-enabled-p)) + (add-hook 'git-commit-post-finish-hook #'magit-wip-commit nil t))) + +(defun magit-wip-any-enabled-p () + (or magit-wip-mode + magit-wip-after-save-local-mode + magit-wip-after-save-mode + magit-wip-after-apply-mode + magit-wip-before-change-mode + magit-wip-initial-backup-mode)) + +;;; Log + +(defun magit-wip-log-index (args files) + "Show log for the index wip ref of the current branch." + (interactive (magit-log-arguments)) + (magit-log-setup-buffer (list (magit--wip-index-ref)) args files)) + +(defun magit-wip-log-worktree (args files) + "Show log for the worktree wip ref of the current branch." + (interactive (magit-log-arguments)) + (magit-log-setup-buffer (list (magit--wip-wtree-ref)) args files)) + +(defun magit-wip-log-current (branch args files count) + "Show log for the current branch and its wip refs. +With a negative prefix argument only show the worktree wip ref. +The absolute numeric value of the prefix argument controls how +many \"branches\" of each wip ref are shown." + (interactive + (nconc (list (or (magit-get-current-branch) "HEAD")) + (magit-log-arguments) + (list (prefix-numeric-value current-prefix-arg)))) + (magit-wip-log branch args files count)) + +(defun magit-wip-log (branch args files count) + "Show log for a branch and its wip refs. +With a negative prefix argument only show the worktree wip ref. +The absolute numeric value of the prefix argument controls how +many \"branches\" of each wip ref are shown." + (interactive + (nconc (list (magit-completing-read + "Log branch and its wip refs" + (-snoc (magit-list-local-branch-names) "HEAD") + nil t nil 'magit-revision-history + (or (magit-branch-at-point) + (magit-get-current-branch) + "HEAD"))) + (magit-log-arguments) + (list (prefix-numeric-value current-prefix-arg)))) + (magit-log-setup-buffer (nconc (list branch) + (magit-wip-log-get-tips + (magit--wip-wtree-ref branch) + (abs count)) + (and (>= count 0) + (magit-wip-log-get-tips + (magit--wip-index-ref branch) + (abs count)))) + args files)) + +(defun magit-wip-log-get-tips (wipref count) + (and-let* ((reflog (magit-git-lines "reflog" wipref))) + (let (tips) + (while (and reflog (> count 1)) + ;; "start autosaving ..." is the current message, but it used + ;; to be "restart autosaving ...", and those messages may + ;; still be around (e.g., if gc.reflogExpire is to "never"). + (setq reflog (cl-member "^[^ ]+ [^:]+: \\(?:re\\)?start autosaving" + reflog :test #'string-match-p)) + (when (and (cadr reflog) + (string-match "^[^ ]+ \\([^:]+\\)" (cadr reflog))) + (push (match-string 1 (cadr reflog)) tips)) + (setq reflog (cddr reflog)) + (cl-decf count)) + (cons wipref (nreverse tips))))) + +;;; _ +(provide 'magit-wip) +;;; magit-wip.el ends here |