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267 lines
9.5 KiB
267 lines
9.5 KiB
;;; magit-patch.el --- creating and applying patches -*- lexical-binding: t -*-
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;; Copyright (C) 2008-2019 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 patch commands.
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;;; Code:
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(eval-when-compile
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(require 'subr-x))
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(require 'magit)
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;;; Options
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(defcustom magit-patch-save-arguments '(exclude "--stat")
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"Control arguments used by the command `magit-patch-save'.
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`magit-patch-save' (which see) saves a diff for the changes
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shown in the current buffer in a patch file. It may use the
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same arguments as used in the buffer or a subset thereof, or
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a constant list of arguments, depending on this option and
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the prefix argument."
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:package-version '(magit . "2.12.0")
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:group 'magit-diff
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:type '(choice (const :tag "use buffer arguments" buffer)
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(cons :tag "use buffer arguments except"
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(const :format "" exclude)
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(repeat :format "%v%i\n"
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(string :tag "Argument")))
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(repeat :tag "use constant arguments"
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(string :tag "Argument"))))
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;;; Commands
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;;;###autoload (autoload 'magit-patch "magit-patch" nil t)
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(define-transient-command magit-patch ()
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"Create or apply patches."
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["Actions"
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("c" "Create patches" magit-patch-create)
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("a" "Apply patch" magit-patch-apply)
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("s" "Save diff as patch" magit-patch-save)
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("r" "Request pull" magit-request-pull)])
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;;;###autoload (autoload 'magit-patch-create "magit-patch" nil t)
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(define-transient-command magit-patch-create (range args files)
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"Create patches for the commits in RANGE.
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When a single commit is given for RANGE, create a patch for the
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changes introduced by that commit (unlike 'git format-patch'
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which creates patches for all commits that are reachable from
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`HEAD' but not from the specified commit)."
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:man-page "git-format-patch"
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["Mail arguments"
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(magit-format-patch:--in-reply-to)
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(magit-format-patch:--thread)
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(magit-format-patch:--reroll-count)
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(magit-format-patch:--subject-prefix)
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("C-m l " "Add cover letter" "--cover-letter")
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(magit-format-patch:--from)
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(magit-format-patch:--to)
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(magit-format-patch:--cc)
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(magit-format-patch:--output-directory)]
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["Diff arguments"
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(magit-diff:-U)
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(magit-diff:-M)
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(magit-diff:-C)
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(magit-diff:--diff-algorithm)
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(magit:--)
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(7 "-b" "Ignore whitespace changes" ("-b" "--ignore-space-change"))
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(7 "-w" "Ignore all whitespace" ("-w" "--ignore-all-space"))]
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["Actions"
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("c" "Create patches" magit-patch-create)]
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(interactive
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(if (not (eq current-transient-command 'magit-patch-create))
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(list nil nil nil)
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(cons (if-let ((revs (magit-region-values 'commit t)))
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(concat (car (last revs)) "^.." (car revs))
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(let ((range (magit-read-range-or-commit
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"Format range or commit")))
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(if (string-match-p "\\.\\." range)
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range
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(format "%s~..%s" range range))))
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(let ((args (transient-args 'magit-patch-create)))
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(list (-filter #'stringp args)
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(cdr (assoc "--" args)))))))
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(if (not range)
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(transient-setup 'magit-patch-create)
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(magit-run-git "format-patch" range args "--" files)
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(when (member "--cover-letter" args)
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(save-match-data
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(find-file
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(expand-file-name
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(concat (--some (and (string-match "\\`--reroll-count=\\(.+\\)" it)
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(format "v%s-" (match-string 1 it)))
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args)
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"0000-cover-letter.patch")
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(let ((topdir (magit-toplevel)))
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(or (--some (and (string-match "\\`--output-directory=\\(.+\\)" it)
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(expand-file-name (match-string 1 it) topdir))
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args)
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topdir))))))))
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(define-infix-argument magit-format-patch:--in-reply-to ()
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:description "In reply to"
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:class 'transient-option
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:key "C-m r "
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:argument "--in-reply-to=")
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(define-infix-argument magit-format-patch:--thread ()
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:description "Thread style"
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:class 'transient-option
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:key "C-m s "
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:argument "--thread=")
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(define-infix-argument magit-format-patch:--reroll-count ()
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:description "Reroll count"
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:class 'transient-option
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:key "C-m v "
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:shortarg "-v"
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:argument "--reroll-count="
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:reader 'transient-read-number-N+)
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(define-infix-argument magit-format-patch:--subject-prefix ()
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:description "Subject Prefix"
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:class 'transient-option
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:key "C-m p "
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:argument "--subject-prefix=")
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(define-infix-argument magit-format-patch:--from ()
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:description "From"
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:class 'transient-option
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:key "C-m C-f"
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:argument "--from="
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:reader 'magit-transient-read-person)
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(define-infix-argument magit-format-patch:--to ()
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:description "To"
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:class 'transient-option
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:key "C-m C-t"
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:argument "--to="
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:reader 'magit-transient-read-person)
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(define-infix-argument magit-format-patch:--cc ()
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:description "CC"
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:class 'transient-option
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:key "C-m C-c"
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:argument "--cc="
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:reader 'magit-transient-read-person)
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(define-infix-argument magit-format-patch:--output-directory ()
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:description "Output directory"
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:class 'transient-option
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:key "C-m o "
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:shortarg "-o"
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:argument "--output-directory="
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:reader 'transient-read-existing-directory)
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;;;###autoload (autoload 'magit-patch-apply "magit-patch" nil t)
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(define-transient-command magit-patch-apply (file &rest args)
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"Apply the patch file FILE."
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:man-page "git-apply"
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["Arguments"
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("-i" "Also apply to index" "--index")
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("-c" "Only apply to index" "--cached")
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("-3" "Fall back on 3way merge" ("-3" "--3way"))]
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["Actions"
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("a" "Apply patch" magit-patch-apply)]
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(interactive
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(if (not (eq current-transient-command 'magit-patch-apply))
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(list nil)
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(list (expand-file-name
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(read-file-name "Apply patch: "
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default-directory nil nil
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(when-let ((file (magit-file-at-point)))
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(file-relative-name file))))
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(transient-args 'magit-patch-apply))))
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(if (not file)
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(transient-setup 'magit-patch-apply)
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(magit-run-git "apply" args "--" (magit-convert-filename-for-git file))))
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;;;###autoload
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(defun magit-patch-save (file &optional arg)
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"Write current diff into patch FILE.
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What arguments are used to create the patch depends on the value
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of `magit-patch-save-arguments' and whether a prefix argument is
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used.
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If the value is the symbol `buffer', then use the same arguments
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as the buffer. With a prefix argument use no arguments.
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If the value is a list beginning with the symbol `exclude', then
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use the same arguments as the buffer except for those matched by
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entries in the cdr of the list. The comparison is done using
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`string-prefix-p'. With a prefix argument use the same arguments
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as the buffer.
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If the value is a list of strings (including the empty list),
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then use those arguments. With a prefix argument use the same
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arguments as the buffer.
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Of course the arguments that are required to actually show the
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same differences as those shown in the buffer are always used."
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(interactive (list (read-file-name "Write patch file: " default-directory)
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current-prefix-arg))
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(unless (derived-mode-p 'magit-diff-mode)
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(user-error "Only diff buffers can be saved as patches"))
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(let ((rev magit-buffer-range)
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(typearg magit-buffer-typearg)
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(args magit-buffer-diff-args)
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(files magit-buffer-diff-files))
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(cond ((eq magit-patch-save-arguments 'buffer)
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(when arg
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(setq args nil)))
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((eq (car-safe magit-patch-save-arguments) 'exclude)
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(unless arg
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(setq args (-difference args (cdr magit-patch-save-arguments)))))
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((not arg)
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(setq args magit-patch-save-arguments)))
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(with-temp-file file
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(magit-git-insert "diff" rev "-p" typearg args "--" files)))
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(magit-refresh))
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;;;###autoload
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(defun magit-request-pull (url start end)
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"Request upstream to pull from you public repository.
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URL is the url of your publically accessible repository.
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START is a commit that already is in the upstream repository.
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END is the last commit, usually a branch name, which upstream
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is asked to pull. START has to be reachable from that commit."
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(interactive
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(list (magit-get "remote" (magit-read-remote "Remote") "url")
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(magit-read-branch-or-commit "Start" (magit-get-upstream-branch))
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(magit-read-branch-or-commit "End")))
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(let ((dir default-directory))
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;; mu4e changes default-directory
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(compose-mail)
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(setq default-directory dir))
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(message-goto-body)
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(magit-git-insert "request-pull" start url end)
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(set-buffer-modified-p nil))
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;;; _
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(provide 'magit-patch)
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;;; magit-patch.el ends here
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