415 lines
16 KiB
EmacsLisp
415 lines
16 KiB
EmacsLisp
;;; magit-commit.el --- create Git commits -*- lexical-binding: t -*-
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;; Copyright (C) 2008-2016 The Magit Project Contributors
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;;
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;; You should have received a copy of the AUTHORS.md file which
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;; lists all contributors. If not, see http://magit.vc/authors.
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;; Author: Jonas Bernoulli <jonas@bernoul.li>
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;; Maintainer: Jonas Bernoulli <jonas@bernoul.li>
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;; Magit is free software; you can redistribute it and/or modify it
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;; under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 3, or (at your option)
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;; any later version.
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;;
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;; Magit is distributed in the hope that it will be useful, but WITHOUT
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;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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;; License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with Magit. If not, see http://www.gnu.org/licenses.
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;;; Commentary:
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;; This library implements commands for creating Git commits. These
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;; commands just initiate the commit, support for writing the commit
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;; messages is implemented in `git-commit.el'.
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;;; Code:
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(require 'magit)
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(require 'magit-sequence)
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(eval-when-compile (require 'epa)) ; for `epa-protocol'
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(eval-when-compile (require 'epg))
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(declare-function epg-sub-key-id 'epg)
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(declare-function epg-key-sub-key-list 'epg)
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(declare-function epg-key-user-id-list 'epg)
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(declare-function epg-user-id-string 'epg)
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(declare-function epg-decode-dn 'epg)
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(declare-function epg-list-keys 'epg)
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;;; Options
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(defcustom magit-commit-arguments nil
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"The arguments used when committing."
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:group 'magit-commands
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:type '(repeat (string :tag "Argument")))
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(defcustom magit-commit-ask-to-stage 'verbose
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"Whether to ask to stage everything when committing and nothing is staged."
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:package-version '(magit . "2.3.0")
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:group 'magit-commands
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:type '(choice (const :tag "Ask showing diff" verbose)
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(const :tag "Ask" t)
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(const :tag "Don't ask" nil)))
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(defcustom magit-commit-show-diff t
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"Whether the relevant diff is automatically shown when committing."
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:package-version '(magit . "2.3.0")
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:group 'magit-commands
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:type 'boolean)
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(defcustom magit-commit-extend-override-date t
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"Whether using `magit-commit-extend' changes the committer date."
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:package-version '(magit . "2.3.0")
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:group 'magit-commands
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:type 'boolean)
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(defcustom magit-commit-reword-override-date t
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"Whether using `magit-commit-reword' changes the committer date."
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:package-version '(magit . "2.3.0")
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:group 'magit-commands
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:type 'boolean)
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(defcustom magit-commit-squash-confirm t
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"Whether the commit targeted by squash and fixup has to be confirmed.
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When non-nil then the commit at point (if any) is used as default
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choice, otherwise it has to be confirmed. This option only
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affects `magit-commit-squash' and `magit-commit-fixup'. The
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\"instant\" variants always require confirmation because making
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an error while using those is harder to recover from."
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:package-version '(magit . "2.1.0")
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:group 'magit-commands
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:type 'boolean)
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;;; Code
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(defun magit-commit-popup (&optional arg)
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"Popup console for commit commands."
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(interactive "P")
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(--if-let (magit-commit-message-buffer)
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(switch-to-buffer it)
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(magit-invoke-popup 'magit-commit-popup nil arg)))
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(defvar magit-commit-popup
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'(:variable magit-commit-arguments
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:man-page "git-commit"
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:switches ((?a "Stage all modified and deleted files" "--all")
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(?e "Allow empty commit" "--allow-empty")
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(?v "Show diff of changes to be committed" "--verbose")
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(?n "Bypass git hooks" "--no-verify")
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(?s "Add Signed-off-by line" "--signoff")
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(?R "Claim authorship and reset author date" "--reset-author"))
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:options ((?A "Override the author" "--author=")
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(?S "Sign using gpg" "--gpg-sign=" magit-read-gpg-secret-key)
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(?C "Reuse commit message" "--reuse-message="))
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:actions ((?c "Commit" magit-commit)
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(?e "Extend" magit-commit-extend)
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(?f "Fixup" magit-commit-fixup)
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(?F "Instant Fixup" magit-commit-instant-fixup) nil
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(?w "Reword" magit-commit-reword)
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(?s "Squash" magit-commit-squash)
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(?S "Instant Squash" magit-commit-instant-squash) nil
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(?a "Amend" magit-commit-amend)
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(?A "Augment" magit-commit-augment))
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:max-action-columns 4
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:default-action magit-commit))
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(magit-define-popup-keys-deferred 'magit-commit-popup)
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(defun magit-commit-arguments nil
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(if (eq magit-current-popup 'magit-commit-popup)
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magit-current-popup-args
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magit-commit-arguments))
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(defun magit-commit-message-buffer ()
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(let* ((find-file-visit-truename t) ; git uses truename of COMMIT_EDITMSG
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(topdir (magit-toplevel)))
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(--first (equal topdir (with-current-buffer it
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(and git-commit-mode (magit-toplevel))))
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(append (buffer-list (selected-frame))
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(buffer-list)))))
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;;;###autoload
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(defun magit-commit (&optional args)
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"Create a new commit on HEAD.
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With a prefix argument amend to the commit at HEAD instead.
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\n(git commit [--amend] ARGS)"
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(interactive (if current-prefix-arg
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(list (cons "--amend" (magit-commit-arguments)))
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(list (magit-commit-arguments))))
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(when (setq args (magit-commit-assert args))
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(magit-run-git-with-editor "commit" args)))
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;;;###autoload
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(defun magit-commit-amend (&optional args)
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"Amend the last commit.
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\n(git commit --amend ARGS)"
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(interactive (list (magit-commit-arguments)))
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(magit-run-git-with-editor "commit" "--amend" args))
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;;;###autoload
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(defun magit-commit-extend (&optional args override-date)
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"Amend the last commit, without editing the message.
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With a prefix argument keep the committer date, otherwise change
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it. The option `magit-commit-extend-override-date' can be used
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to inverse the meaning of the prefix argument. \n(git commit
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--amend --no-edit)"
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(interactive (list (magit-commit-arguments)
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(if current-prefix-arg
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(not magit-commit-extend-override-date)
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magit-commit-extend-override-date)))
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(when (setq args (magit-commit-assert args (not override-date)))
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(let ((process-environment process-environment))
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(unless override-date
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(push (magit-rev-format "GIT_COMMITTER_DATE=%cD") process-environment))
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(magit-run-git-with-editor "commit" "--amend" "--no-edit" args))))
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;;;###autoload
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(defun magit-commit-reword (&optional args override-date)
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"Reword the last commit, ignoring staged changes.
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With a prefix argument keep the committer date, otherwise change
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it. The option `magit-commit-reword-override-date' can be used
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to inverse the meaning of the prefix argument.
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Non-interactively respect the optional OVERRIDE-DATE argument
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and ignore the option.
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\n(git commit --amend --only)"
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(interactive (list (magit-commit-arguments)
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(if current-prefix-arg
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(not magit-commit-reword-override-date)
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magit-commit-reword-override-date)))
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(let ((process-environment process-environment))
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(unless override-date
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(push (magit-rev-format "GIT_COMMITTER_DATE=%cD") process-environment))
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(magit-run-git-with-editor "commit" "--amend" "--only" args)))
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;;;###autoload
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(defun magit-commit-fixup (&optional commit args)
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"Create a fixup commit.
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With a prefix argument the target COMMIT has to be confirmed.
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Otherwise the commit at point may be used without confirmation
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depending on the value of option `magit-commit-squash-confirm'."
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(interactive (list (magit-commit-at-point)
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(magit-commit-arguments)))
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(magit-commit-squash-internal "--fixup" commit args))
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;;;###autoload
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(defun magit-commit-squash (&optional commit args)
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"Create a squash commit, without editing the squash message.
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With a prefix argument the target COMMIT has to be confirmed.
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Otherwise the commit at point may be used without confirmation
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depending on the value of option `magit-commit-squash-confirm'."
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(interactive (list (magit-commit-at-point)
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(magit-commit-arguments)))
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(magit-commit-squash-internal "--squash" commit args))
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;;;###autoload
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(defun magit-commit-augment (&optional commit args)
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"Create a squash commit, editing the squash message.
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With a prefix argument the target COMMIT has to be confirmed.
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Otherwise the commit at point may be used without confirmation
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depending on the value of option `magit-commit-squash-confirm'."
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(interactive (list (magit-commit-at-point)
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(magit-commit-arguments)))
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(magit-commit-squash-internal "--squash" commit args nil t))
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;;;###autoload
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(defun magit-commit-instant-fixup (&optional commit args)
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"Create a fixup commit targeting COMMIT and instantly rebase."
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(interactive (list (magit-commit-at-point)
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(magit-commit-arguments)))
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(magit-commit-squash-internal "--fixup" commit args t))
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;;;###autoload
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(defun magit-commit-instant-squash (&optional commit args)
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"Create a squash commit targeting COMMIT and instantly rebase."
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(interactive (list (magit-commit-at-point)
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(magit-commit-arguments)))
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(magit-commit-squash-internal "--squash" commit args t))
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(defun magit-commit-squash-internal
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(option commit &optional args rebase edit confirmed)
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(-when-let (args (magit-commit-assert args t))
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(if (and commit
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(or confirmed
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(not (or rebase
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current-prefix-arg
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magit-commit-squash-confirm))))
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(let ((magit-commit-show-diff nil))
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(push (concat option "=" commit) args)
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(unless edit
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(push "--no-edit" args))
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(if rebase
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(with-editor "GIT_EDITOR"
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(let ((magit-process-popup-time -1))
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(magit-call-git "commit" args)))
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(magit-run-git-with-editor "commit" args)))
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(magit-log-select
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`(lambda (commit)
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(magit-commit-squash-internal ,option commit ',args ,rebase ,edit t)
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,@(when rebase
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`((magit-rebase-interactive-1 commit
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(list "--autosquash" "--autostash")
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"" "true"))))
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(format "Type %%p on a commit to %s into it,"
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(substring option 2)))
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(when magit-commit-show-diff
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(let ((magit-display-buffer-noselect t))
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(apply #'magit-diff-staged nil (magit-diff-arguments)))))))
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(defun magit-commit-assert (args &optional strict)
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(cond
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((or (magit-anything-staged-p)
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(and (magit-anything-unstaged-p)
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;; ^ Everything of nothing is still nothing.
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(member "--all" args))
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(and (not strict)
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;; ^ For amend variants that don't make sense otherwise.
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(or (member "--amend" args)
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(member "--allow-empty" args))))
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(or args (list "--")))
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((and (magit-rebase-in-progress-p)
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(not (magit-anything-unstaged-p))
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(y-or-n-p "Nothing staged. Continue in-progress rebase? "))
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(magit-run-git-sequencer "rebase" "--continue")
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nil)
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((and (file-exists-p (magit-git-dir "MERGE_MSG"))
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(not (magit-anything-unstaged-p)))
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(or args (list "--")))
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((not (magit-anything-unstaged-p))
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(user-error "Nothing staged (or unstaged)"))
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(magit-commit-ask-to-stage
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(when (eq magit-commit-ask-to-stage 'verbose)
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(magit-diff-unstaged))
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(prog1 (when (y-or-n-p "Nothing staged. Stage and commit everything? ")
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(magit-run-git "add" "-u" ".")
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(or args (list "--")))
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(when (and (eq magit-commit-ask-to-stage 'verbose)
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(derived-mode-p 'magit-diff-mode))
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(magit-mode-bury-buffer))))
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(t
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(user-error "Nothing staged"))))
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(defun magit-commit-diff ()
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(-when-let (fn (and git-commit-mode
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magit-commit-show-diff
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(pcase last-command
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(`magit-commit
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(apply-partially 'magit-diff-staged nil))
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(`magit-commit-amend 'magit-diff-while-amending)
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(`magit-commit-reword 'magit-diff-while-amending))))
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(-when-let (diff-buffer (magit-mode-get-buffer 'magit-diff-mode))
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;; This window just started displaying the commit message
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;; buffer. Without this that buffer would immediately be
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;; replaced with the diff buffer. See #2632.
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(unrecord-window-buffer nil diff-buffer))
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(condition-case nil
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(let ((magit-inhibit-save-previous-winconf 'unset)
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(magit-display-buffer-noselect t)
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(inhibit-quit nil))
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(message "Diffing changes to be committed (C-g to abort diffing)")
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(funcall fn (car (magit-diff-arguments))))
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(quit))))
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;; Mention `magit-diff-while-committing' because that's
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;; always what I search for when I try to find this line.
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(add-hook 'server-switch-hook 'magit-commit-diff)
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(add-to-list 'with-editor-server-window-alist
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(cons git-commit-filename-regexp 'switch-to-buffer))
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(defvar magit-gpg-secret-key-hist nil)
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(defun magit-read-gpg-secret-key (prompt &optional _initial-input)
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(require 'epa)
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(let ((keys (--map (concat (epg-sub-key-id (car (epg-key-sub-key-list it)))
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" "
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(-when-let (id-obj (car (epg-key-user-id-list it)))
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(let ((id-str (epg-user-id-string id-obj)))
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(if (stringp id-str)
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id-str
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(epg-decode-dn id-obj)))))
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(epg-list-keys (epg-make-context epa-protocol) nil t))))
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(car (split-string (magit-completing-read
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prompt keys nil nil nil 'magit-gpg-secret-key-hist
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(car (or magit-gpg-secret-key-hist keys)))
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" "))))
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(defvar magit-commit-add-log-insert-function 'magit-commit-add-log-insert
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"Used by `magit-commit-add-log' to insert a single entry.")
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(defun magit-commit-add-log ()
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"Add a stub for the current change into the commit message buffer.
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If no commit is in progress, then initiate it. Use the function
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specified by variable `magit-commit-add-log-insert-function' to
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actually insert the entry."
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(interactive)
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(let ((hunk (magit-section-when 'hunk it))
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(log (magit-commit-message-buffer)) buf pos)
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(save-window-excursion
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(call-interactively #'magit-diff-visit-file)
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(setq buf (current-buffer)
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pos (point)))
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(unless log
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(unless (magit-commit-assert nil)
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(user-error "Abort"))
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(magit-commit)
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(while (not (setq log (magit-commit-message-buffer)))
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(sit-for 0.01)))
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(save-excursion
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(with-current-buffer buf
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(goto-char pos)
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(funcall magit-commit-add-log-insert-function log
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(magit-file-relative-name)
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(and hunk (add-log-current-defun)))))))
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(defun magit-commit-add-log-insert (buffer file defun)
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(with-current-buffer buffer
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(undo-boundary)
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(goto-char (point-max))
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(while (re-search-backward (concat "^" comment-start) nil t))
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(cond ((re-search-backward (format "* %s\\(?: (\\([^)]+\\))\\)?: " file)
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nil t)
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(when (equal (match-string 1) defun)
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(setq defun nil))
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(re-search-forward ": "))
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(t
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(when (re-search-backward "^[\\*(].+\n" nil t)
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(goto-char (match-end 0)))
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(while (re-search-forward "^[^\\*#\n].*\n" nil t))
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(if defun
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(progn (insert (format "* %s (%s): \n" file defun))
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(setq defun nil))
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(insert (format "* %s: \n" file)))
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(backward-char)
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(unless (looking-at "\n[\n\\']")
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(insert ?\n)
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(backward-char))))
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(when defun
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(forward-line)
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(let ((limit (save-excursion
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(and (re-search-forward "^\\*" nil t)
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(point)))))
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(unless (or (looking-back (format "(%s): " defun)
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(line-beginning-position))
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(re-search-forward (format "^(%s): " defun) limit t))
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(while (re-search-forward "^[^\\*#\n].*\n" limit t))
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(insert (format "(%s): \n" defun))
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(backward-char))))))
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;;; magit-commit.el ends soon
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(provide 'magit-commit)
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;; Local Variables:
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;; indent-tabs-mode: nil
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;; End:
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;;; magit-commit.el ends here
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