;;; magit-process.el --- process functionality -*- lexical-binding: t -*-
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;; Copyright (C) 2010-2018 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 the tools used to run Git for side-effects.
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;; Note that the functions used to run Git and then consume its
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;; output, are defined in `magit-git.el'. There's a bit of overlap
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;; though.
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;;; Code:
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(require 'ansi-color)
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(require 'cl-lib)
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(require 'dash)
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(eval-when-compile
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(require 'subr-x))
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(require 'with-editor)
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(require 'magit-utils)
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(require 'magit-section)
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(require 'magit-git)
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(require 'magit-mode)
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(declare-function auth-source-search "auth-source"
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(&rest spec &key max require create delete &allow-other-keys))
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;;; Options
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(defcustom magit-process-connection-type (not (eq system-type 'cygwin))
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"Connection type used for the Git process.
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If nil, use pipes: this is usually more efficient, and works on Cygwin.
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If t, use ptys: this enables Magit to prompt for passphrases when needed."
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:group 'magit-process
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:type '(choice (const :tag "pipe" nil)
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(const :tag "pty" t)))
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(defcustom magit-need-cygwin-noglob
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(and (eq system-type 'windows-nt)
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(with-temp-buffer
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(let ((process-environment
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(append magit-git-environment process-environment)))
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(condition-case e
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(process-file magit-git-executable
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nil (current-buffer) nil
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"-c" "alias.echo=!echo" "echo" "x{0}")
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(file-error
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(lwarn 'magit-process :warning
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"Could not run Git: %S" e))))
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(equal "x0\n" (buffer-string))))
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"Whether to use a workaround for Cygwin's globbing behavior.
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If non-nil, add environment variables to `process-environment' to
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prevent the git.exe distributed by Cygwin and MSYS2 from
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attempting to perform glob expansion when called from a native
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Windows build of Emacs. See #2246."
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:package-version '(magit . "2.3.0")
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:group 'magit-process
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:type '(choice (const :tag "Yes" t)
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(const :tag "No" nil)))
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(defcustom magit-process-popup-time -1
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"Popup the process buffer if a command takes longer than this many seconds."
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:group 'magit-process
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:type '(choice (const :tag "Never" -1)
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(const :tag "Immediately" 0)
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(integer :tag "After this many seconds")))
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(defcustom magit-process-log-max 32
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"Maximum number of sections to keep in a process log buffer.
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When adding a new section would go beyond the limit set here,
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then the older half of the sections are remove. Sections that
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belong to processes that are still running are never removed.
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When this is nil, no sections are ever removed."
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:package-version '(magit . "2.1.0")
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:group 'magit-process
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:type '(choice (const :tag "Never remove old sections" nil) integer))
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(defcustom magit-process-error-tooltip-max-lines 20
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"The number of lines for `magit-process-error-lines' to return.
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These are displayed in a tooltip for `mode-line-process' errors.
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If `magit-process-error-tooltip-max-lines' is nil, the tooltip
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displays the text of `magit-process-error-summary' instead."
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:package-version '(magit . "2.12.0")
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:group 'magit-process
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:type '(choice (const :tag "Use summary line" nil)
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integer))
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(defcustom magit-credential-cache-daemon-socket
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(--some (pcase-let ((`(,prog . ,args) (split-string it)))
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(if (and prog
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(string-match-p
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"\\`\\(?:\\(?:/.*/\\)?git-credential-\\)?cache\\'" prog))
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(or (cl-loop for (opt val) on args
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if (string= opt "--socket")
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return val)
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(expand-file-name "~/.git-credential-cache/socket"))))
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;; Note: `magit-process-file' is not yet defined when
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;; evaluating this form, so we use `process-lines'.
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(ignore-errors
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(let ((process-environment
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(append magit-git-environment process-environment)))
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(process-lines magit-git-executable
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"config" "--get-all" "credential.helper"))))
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"If non-nil, start a credential cache daemon using this socket.
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When using Git's cache credential helper in the normal way, Emacs
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sends a SIGHUP to the credential daemon after the git subprocess
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has exited, causing the daemon to also quit. This can be avoided
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by starting the `git-credential-cache--daemon' process directly
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from Emacs.
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The function `magit-maybe-start-credential-cache-daemon' takes
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care of starting the daemon if necessary, using the value of this
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option as the socket. If this option is nil, then it does not
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start any daemon. Likewise if another daemon is already running,
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then it starts no new daemon. This function has to be a member
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of the hook variable `magit-credential-hook' for this to work.
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If an error occurs while starting the daemon, most likely because
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the necessary executable is missing, then the function removes
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itself from the hook, to avoid further futile attempts."
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:package-version '(magit . "2.3.0")
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:group 'magit-process
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:type '(choice (file :tag "Socket")
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(const :tag "Don't start a cache daemon" nil)))
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(defcustom magit-process-yes-or-no-prompt-regexp
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" [\[(]\\([Yy]\\(?:es\\)?\\)[/|]\\([Nn]o?\\)[\])] ?[?:] ?$"
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"Regexp matching Yes-or-No prompts of Git and its subprocesses."
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:package-version '(magit . "2.1.0")
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:group 'magit-process
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:type 'regexp)
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(defcustom magit-process-password-prompt-regexps
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'("^\\(Enter \\)?[Pp]assphrase\\( for \\(RSA \\)?key '.*'\\)?: ?$"
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;; Match-group 99 is used to identify the "user@host" part.
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"^\\(Enter \\)?[Pp]assword\\( for '\\(https?://\\)?\\(?99:.*\\)'\\)?: ?$"
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"^.*'s password: ?$"
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"^Yubikey for .*: ?$"
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"^Enter PIN for .*: ?$")
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"List of regexps matching password prompts of Git and its subprocesses.
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Also see `magit-process-find-password-functions'."
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:package-version '(magit . "2.8.0")
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:group 'magit-process
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:type '(repeat (regexp)))
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(defcustom magit-process-find-password-functions nil
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"List of functions to try in sequence to get a password.
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These functions may be called when git asks for a password, which
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is detected using `magit-process-password-prompt-regexps'. They
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are called if and only if matching the prompt resulted in the
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value of the 99th submatch to be non-nil. Therefore users can
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control for which prompts these functions should be called by
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putting the host name in the 99th submatch, or not.
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If the functions are called, then they are called in the order
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given, with the host name as only argument, until one of them
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returns non-nil. If they are not called or none of them returns
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non-nil, then the password is read from the user instead."
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:package-version '(magit . "2.3.0")
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:group 'magit-process
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:type 'hook
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:options '(magit-process-password-auth-source))
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(defcustom magit-process-username-prompt-regexps
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'("^Username for '.*': ?$")
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"List of regexps matching username prompts of Git and its subprocesses."
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:package-version '(magit . "2.1.0")
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:group 'magit-process
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:type '(repeat (regexp)))
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(defcustom magit-process-ensure-unix-line-ending t
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"Whether Magit should ensure a unix coding system when talking to Git."
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:package-version '(magit . "2.6.0")
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:group 'magit-process
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:type 'boolean)
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(defcustom magit-process-display-mode-line-error t
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"Whether Magit should retain and highlight process errors in the mode line."
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:package-version '(magit . "2.12.0")
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:group 'magit-process
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:type 'boolean)
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(defface magit-process-ok
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'((t :inherit magit-section-heading :foreground "green"))
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"Face for zero exit-status."
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:group 'magit-faces)
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(defface magit-process-ng
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'((t :inherit magit-section-heading :foreground "red"))
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"Face for non-zero exit-status."
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:group 'magit-faces)
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(defface magit-mode-line-process
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'((t :inherit mode-line-emphasis))
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"Face for `mode-line-process' status when Git is running for side-effects."
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:group 'magit-faces)
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(defface magit-mode-line-process-error
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'((t :inherit error))
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"Face for `mode-line-process' error status.
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Used when `magit-process-display-mode-line-error' is non-nil."
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:group 'magit-faces)
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;;; Process Mode
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(defvar magit-process-mode-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map magit-mode-map)
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map)
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"Keymap for `magit-process-mode'.")
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(define-derived-mode magit-process-mode magit-mode "Magit Process"
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"Mode for looking at Git process output."
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:group 'magit-process
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(hack-dir-local-variables-non-file-buffer)
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(setq imenu-prev-index-position-function
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'magit-imenu--process-prev-index-position-function)
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(setq imenu-extract-index-name-function
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'magit-imenu--process-extract-index-name-function))
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(defun magit-process-buffer (&optional nodisplay)
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"Display the current repository's process buffer.
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If that buffer doesn't exist yet, then create it.
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Non-interactively return the buffer and unless
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optional NODISPLAY is non-nil also display it."
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(interactive)
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(let ((topdir (magit-toplevel)))
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(unless topdir
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(magit--with-safe-default-directory nil
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(setq topdir default-directory)
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(let (prev)
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(while (not (equal topdir prev))
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(setq prev topdir)
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(setq topdir (file-name-directory (directory-file-name topdir)))))))
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(let ((buffer (or (--first (with-current-buffer it
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(and (eq major-mode 'magit-process-mode)
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(equal default-directory topdir)))
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(buffer-list))
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(let ((default-directory topdir))
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(magit-generate-new-buffer 'magit-process-mode)))))
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(with-current-buffer buffer
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(if magit-root-section
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(when magit-process-log-max
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(magit-process-truncate-log))
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(magit-process-mode)
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(let ((inhibit-read-only t)
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(magit-insert-section--parent nil)
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(magit-insert-section--oldroot nil))
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(make-local-variable 'text-property-default-nonsticky)
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(magit-insert-section (processbuf)
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(insert "\n")))))
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(unless nodisplay
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(magit-display-buffer buffer))
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buffer)))
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(defun magit-process-kill ()
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"Kill the process at point."
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(interactive)
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(when-let ((process (magit-section-value-if 'process)))
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(unless (eq (process-status process) 'run)
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(user-error "Process isn't running"))
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(magit-confirm 'kill-process)
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(kill-process process)))
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;;; Synchronous Processes
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(defvar magit-process-raise-error nil)
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(defun magit-git (&rest args)
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"Call Git synchronously in a separate process, for side-effects.
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Option `magit-git-executable' specifies the Git executable.
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The arguments ARGS specify arguments to Git, they are flattened
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before use.
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Process output goes into a new section in the buffer returned by
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`magit-process-buffer'. If Git exits with a non-zero status,
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then raise an error."
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(let ((magit-process-raise-error t))
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(magit-call-git args)))
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(defun magit-run-git (&rest args)
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"Call Git synchronously in a separate process, and refresh.
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Option `magit-git-executable' specifies the Git executable and
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option `magit-git-global-arguments' specifies constant arguments.
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The arguments ARGS specify arguments to Git, they are flattened
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before use.
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After Git returns, the current buffer (if it is a Magit buffer)
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as well as the current repository's status buffer are refreshed.
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Process output goes into a new section in the buffer returned by
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`magit-process-buffer'."
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(let ((magit--refresh-cache (list (cons 0 0))))
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(magit-call-git args)
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(when (member (car args) '("init" "clone"))
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;; Creating a new repository invalidates the cache.
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(setq magit--refresh-cache nil))
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(magit-refresh)))
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(defvar magit-pre-call-git-hook nil)
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(defun magit-call-git (&rest args)
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"Call Git synchronously in a separate process.
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Option `magit-git-executable' specifies the Git executable and
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option `magit-git-global-arguments' specifies constant arguments.
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The arguments ARGS specify arguments to Git, they are flattened
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before use.
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Process output goes into a new section in the buffer returned by
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`magit-process-buffer'."
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(run-hooks 'magit-pre-call-git-hook)
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(let ((default-process-coding-system (magit--process-coding-system)))
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(apply #'magit-call-process magit-git-executable
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(magit-process-git-arguments args))))
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(defun magit-call-process (program &rest args)
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"Call PROGRAM synchronously in a separate process.
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Process output goes into a new section in the buffer returned by
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`magit-process-buffer'."
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(pcase-let ((`(,process-buf . ,section)
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(magit-process-setup program args)))
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(magit-process-finish
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(let ((inhibit-read-only t))
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(apply #'magit-process-file program nil process-buf nil args))
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process-buf (current-buffer) default-directory section)))
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(defun magit-process-file (process &optional infile buffer display &rest args)
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"Process files synchronously in a separate process.
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Identical to `process-file' but temporarily enable Cygwin's
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\"noglob\" option during the call and ensure unix eol
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conversion."
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(let ((process-environment (magit-process-environment))
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(default-process-coding-system (magit--process-coding-system)))
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(apply #'process-file process infile buffer display args)))
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(defun magit-process-environment ()
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;; The various w32 hacks are only applicable when running on the
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;; local machine. As of Emacs 25.1, a local binding of
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;; process-environment different from the top-level value affects
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;; the environment used in
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;; tramp-sh-handle-{start-file-process,process-file}.
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(let ((local (not (file-remote-p default-directory))))
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(append magit-git-environment
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(and local
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(cdr (assoc magit-git-executable magit-git-w32-path-hack)))
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(and local magit-need-cygwin-noglob
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(mapcar (lambda (var)
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(concat var "=" (--if-let (getenv var)
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(concat it " noglob")
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"noglob")))
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'("CYGWIN" "MSYS")))
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process-environment)))
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(defvar magit-this-process nil)
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(defun magit-run-git-with-input (&rest args)
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"Call Git in a separate process.
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ARGS is flattened and then used as arguments to Git.
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The current buffer's content is used as the process' standard
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input.
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Option `magit-git-executable' specifies the Git executable and
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option `magit-git-global-arguments' specifies constant arguments.
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The remaining arguments ARGS specify arguments to Git, they are
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flattened before use."
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(when (eq system-type 'windows-nt)
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;; On w32, git expects UTF-8 encoded input, ignore any user
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;; configuration telling us otherwise (see #3250).
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(encode-coding-region (point-min) (point-max) 'utf-8-unix))
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(if (file-remote-p default-directory)
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;; We lack `process-file-region', so fall back to asynch +
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;; waiting in remote case.
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(progn
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(magit-start-git (current-buffer) args)
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(while (and magit-this-process
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(eq (process-status magit-this-process) 'run))
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(sleep-for 0.005)))
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(run-hooks 'magit-pre-call-git-hook)
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(pcase-let* ((process-environment (magit-process-environment))
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(default-process-coding-system (magit--process-coding-system))
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(flat-args (magit-process-git-arguments args))
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(`(,process-buf . ,section)
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(magit-process-setup magit-git-executable flat-args))
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(inhibit-read-only t))
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(magit-process-finish
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(apply #'call-process-region (point-min) (point-max)
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magit-git-executable nil process-buf nil flat-args)
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process-buf nil default-directory section))))
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(defun magit-run-git-with-logfile (file &rest args)
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"Call Git in a separate process and log its output to FILE.
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This function might have a short halflive."
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(apply #'magit-process-file magit-git-executable nil `(:file ,file) nil
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(magit-process-git-arguments args))
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(magit-refresh))
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;;; Asynchronous Processes
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(defun magit-run-git-async (&rest args)
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"Start Git, prepare for refresh, and return the process object.
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ARGS is flattened and then used as arguments to Git.
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Display the command line arguments in the echo area.
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After Git returns some buffers are refreshed: the buffer that was
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current when this function was called (if it is a Magit buffer
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and still alive), as well as the respective Magit status buffer.
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See `magit-start-process' for more information."
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(message "Running %s %s" magit-git-executable
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(let ((m (mapconcat #'identity (-flatten args) " ")))
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(remove-list-of-text-properties 0 (length m) '(face) m)
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m))
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(magit-start-git nil args))
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(defun magit-run-git-with-editor (&rest args)
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"Export GIT_EDITOR and start Git.
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Also prepare for refresh and return the process object.
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ARGS is flattened and then used as arguments to Git.
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Display the command line arguments in the echo area.
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After Git returns some buffers are refreshed: the buffer that was
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current when this function was called (if it is a Magit buffer
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and still alive), as well as the respective Magit status buffer.
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See `magit-start-process' and `with-editor' for more information."
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(magit--record-separated-gitdir)
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(magit-with-editor (magit-run-git-async args)))
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(defun magit-run-git-sequencer (&rest args)
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"Export GIT_EDITOR and start Git.
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Also prepare for refresh and return the process object.
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ARGS is flattened and then used as arguments to Git.
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Display the command line arguments in the echo area.
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After Git returns some buffers are refreshed: the buffer that was
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current when this function was called (if it is a Magit buffer
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and still alive), as well as the respective Magit status buffer.
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If the sequence stops at a commit, make the section representing
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that commit the current section by moving `point' there.
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See `magit-start-process' and `with-editor' for more information."
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(apply #'magit-run-git-with-editor args)
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(set-process-sentinel magit-this-process #'magit-sequencer-process-sentinel)
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magit-this-process)
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(defvar magit-pre-start-git-hook nil)
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(defun magit-start-git (input &rest args)
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"Start Git, prepare for refresh, and return the process object.
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If INPUT is non-nil, it has to be a buffer or the name of an
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existing buffer. The buffer content becomes the processes
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standard input.
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Option `magit-git-executable' specifies the Git executable and
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option `magit-git-global-arguments' specifies constant arguments.
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The remaining arguments ARGS specify arguments to Git, they are
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flattened before use.
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After Git returns some buffers are refreshed: the buffer that was
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current when this function was called (if it is a Magit buffer
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and still alive), as well as the respective Magit status buffer.
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See `magit-start-process' for more information."
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(run-hooks 'magit-pre-start-git-hook)
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(let ((default-process-coding-system (magit--process-coding-system)))
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(apply #'magit-start-process magit-git-executable input
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(magit-process-git-arguments args))))
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(defun magit-start-process (program &optional input &rest args)
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"Start PROGRAM, prepare for refresh, and return the process object.
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If optional argument INPUT is non-nil, it has to be a buffer or
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the name of an existing buffer. The buffer content becomes the
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processes standard input.
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The process is started using `start-file-process' and then setup
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to use the sentinel `magit-process-sentinel' and the filter
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`magit-process-filter'. Information required by these functions
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is stored in the process object. When this function returns the
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process has not started to run yet so it is possible to override
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the sentinel and filter.
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After the process returns, `magit-process-sentinel' refreshes the
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buffer that was current when `magit-start-process' was called (if
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it is a Magit buffer and still alive), as well as the respective
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Magit status buffer."
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(pcase-let*
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((`(,process-buf . ,section)
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(magit-process-setup program args))
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(process
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(let ((process-connection-type
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;; Don't use a pty, because it would set icrnl
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;; which would modify the input (issue #20).
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(and (not input) magit-process-connection-type))
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(process-environment (magit-process-environment))
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(default-process-coding-system (magit--process-coding-system)))
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(apply #'start-file-process
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(file-name-nondirectory program)
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process-buf program args))))
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(with-editor-set-process-filter process #'magit-process-filter)
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(set-process-sentinel process #'magit-process-sentinel)
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(set-process-buffer process process-buf)
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(when (eq system-type 'windows-nt)
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;; On w32, git expects UTF-8 encoded input, ignore any user
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;; configuration telling us otherwise.
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(set-process-coding-system process 'utf-8-unix))
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(process-put process 'section section)
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(process-put process 'command-buf (current-buffer))
|
(process-put process 'default-dir default-directory)
|
(when inhibit-magit-refresh
|
(process-put process 'inhibit-refresh t))
|
(oset section process process)
|
(with-current-buffer process-buf
|
(set-marker (process-mark process) (point)))
|
(when input
|
(with-current-buffer input
|
(process-send-region process (point-min) (point-max))
|
(process-send-eof process)))
|
(setq magit-this-process process)
|
(oset section value process)
|
(magit-process-display-buffer process)
|
process))
|
|
(defun magit-parse-git-async (&rest args)
|
(setq args (magit-process-git-arguments args))
|
(let ((command-buf (current-buffer))
|
(process-buf (generate-new-buffer " *temp*"))
|
(toplevel (magit-toplevel)))
|
(with-current-buffer process-buf
|
(setq default-directory toplevel)
|
(let ((process
|
(let ((process-connection-type nil)
|
(process-environment (magit-process-environment))
|
(default-process-coding-system
|
(magit--process-coding-system)))
|
(apply #'start-file-process "git" process-buf
|
magit-git-executable args))))
|
(process-put process 'command-buf command-buf)
|
(process-put process 'parsed (point))
|
(setq magit-this-process process)
|
process))))
|
|
;;; Process Internals
|
|
(defun magit-process-setup (program args)
|
(magit-process-set-mode-line program args)
|
(let ((pwd default-directory)
|
(buf (magit-process-buffer t)))
|
(cons buf (with-current-buffer buf
|
(prog1 (magit-process-insert-section pwd program args nil nil)
|
(backward-char 1))))))
|
|
(defun magit-process-insert-section (pwd program args &optional errcode errlog)
|
(let ((inhibit-read-only t)
|
(magit-insert-section--parent magit-root-section)
|
(magit-insert-section--oldroot nil))
|
(goto-char (1- (point-max)))
|
(magit-insert-section (process)
|
(insert (if errcode
|
(format "%3s " (propertize (number-to-string errcode)
|
'face 'magit-process-ng))
|
"run "))
|
(unless (equal (expand-file-name pwd)
|
(expand-file-name default-directory))
|
(insert (file-relative-name pwd default-directory) ?\s))
|
(cond
|
((and args (equal program magit-git-executable))
|
(setq args (-split-at (length magit-git-global-arguments) args))
|
(insert (propertize (file-name-nondirectory program)
|
'face 'magit-section-heading) " ")
|
(insert (propertize (char-to-string magit-ellipsis)
|
'face 'magit-section-heading
|
'help-echo (mapconcat #'identity (car args) " ")))
|
(insert " ")
|
(insert (propertize (mapconcat #'shell-quote-argument (cadr args) " ")
|
'face 'magit-section-heading)))
|
((and args (equal program shell-file-name))
|
(insert (propertize (cadr args) 'face 'magit-section-heading)))
|
(t
|
(insert (propertize (file-name-nondirectory program)
|
'face 'magit-section-heading) " ")
|
(insert (propertize (mapconcat #'shell-quote-argument args " ")
|
'face 'magit-section-heading))))
|
(magit-insert-heading)
|
(when errlog
|
(insert-file-contents errlog)
|
(goto-char (1- (point-max))))
|
(insert "\n"))))
|
|
(defun magit-process-truncate-log ()
|
(let* ((head nil)
|
(tail (oref magit-root-section children))
|
(count (length tail)))
|
(when (> (1+ count) magit-process-log-max)
|
(while (and (cdr tail)
|
(> count (/ magit-process-log-max 2)))
|
(let* ((inhibit-read-only t)
|
(section (car tail))
|
(process (oref section process)))
|
(cond ((not process))
|
((memq (process-status process) '(exit signal))
|
(delete-region (oref section start)
|
(1+ (oref section end)))
|
(cl-decf count))
|
(t
|
(push section head))))
|
(pop tail))
|
(oset magit-root-section children
|
(nconc (reverse head) tail)))))
|
|
(defun magit-process-sentinel (process event)
|
"Default sentinel used by `magit-start-process'."
|
(when (memq (process-status process) '(exit signal))
|
(setq event (substring event 0 -1))
|
(when (string-match "^finished" event)
|
(message (concat (capitalize (process-name process)) " finished")))
|
(magit-process-finish process)
|
(when (eq process magit-this-process)
|
(setq magit-this-process nil))
|
(unless (process-get process 'inhibit-refresh)
|
(let ((command-buf (process-get process 'command-buf)))
|
(if (buffer-live-p command-buf)
|
(with-current-buffer command-buf
|
(magit-refresh))
|
(with-temp-buffer
|
(setq default-directory (process-get process 'default-dir))
|
(magit-refresh)))))))
|
|
(defun magit-sequencer-process-sentinel (process event)
|
"Special sentinel used by `magit-run-git-sequencer'."
|
(when (memq (process-status process) '(exit signal))
|
(magit-process-sentinel process event)
|
(when-let ((process-buf (process-buffer process)))
|
(when (buffer-live-p process-buf)
|
(when-let ((status-buf (with-current-buffer process-buf
|
(magit-mode-get-buffer 'magit-status-mode))))
|
(with-current-buffer status-buf
|
(--when-let
|
(magit-get-section
|
`((commit . ,(magit-rev-parse "HEAD"))
|
(,(pcase (car (cadr (-split-at
|
(1+ (length magit-git-global-arguments))
|
(process-command process))))
|
((or "rebase" "am") 'rebase-sequence)
|
((or "cherry-pick" "revert") 'sequence)))
|
(status)))
|
(goto-char (oref it start))
|
(magit-section-update-highlight))))))))
|
|
(defun magit-process-filter (proc string)
|
"Default filter used by `magit-start-process'."
|
(with-current-buffer (process-buffer proc)
|
(let ((inhibit-read-only t))
|
(magit-process-yes-or-no-prompt proc string)
|
(magit-process-username-prompt proc string)
|
(magit-process-password-prompt proc string)
|
(goto-char (process-mark proc))
|
(setq string (propertize string 'magit-section
|
(process-get proc 'section)))
|
;; Find last ^M in string. If one was found, ignore
|
;; everything before it and delete the current line.
|
(let ((ret-pos (length string)))
|
(while (and (>= (cl-decf ret-pos) 0)
|
(/= ?\r (aref string ret-pos))))
|
(if (< ret-pos 0)
|
(insert string)
|
(delete-region (line-beginning-position) (point))
|
(insert (substring string (1+ ret-pos)))))
|
(set-marker (process-mark proc) (point)))))
|
|
(defmacro magit-process-kill-on-abort (proc &rest body)
|
(declare (indent 1) (debug (form body)))
|
(let ((map (cl-gensym)))
|
`(let ((,map (make-sparse-keymap)))
|
(set-keymap-parent ,map minibuffer-local-map)
|
(define-key ,map "\C-g"
|
(lambda ()
|
(interactive)
|
(ignore-errors (kill-process ,proc))
|
(abort-recursive-edit)))
|
(let ((minibuffer-local-map ,map))
|
,@body))))
|
|
(defun magit-process-yes-or-no-prompt (process string)
|
"Forward Yes-or-No prompts to the user."
|
(when-let ((beg (string-match magit-process-yes-or-no-prompt-regexp string)))
|
(let ((max-mini-window-height 30))
|
(process-send-string
|
process
|
(downcase
|
(concat
|
(match-string
|
(if (save-match-data
|
(magit-process-kill-on-abort process
|
(yes-or-no-p (substring string 0 beg)))) 1 2)
|
string)
|
"\n"))))))
|
|
(defun magit-process-password-auth-source (key)
|
"Use `auth-source-search' to get a password.
|
If found, return the password. Otherwise, return nil.
|
|
To use this function add it to the appropriate hook
|
(add-hook 'magit-process-find-password-functions
|
'magit-process-password-auth-source)
|
|
KEY typically derives from a prompt such as:
|
Password for 'https://tarsius@bitbucket.org'
|
in which case it would be the string
|
tarsius@bitbucket.org
|
which matches the ~/.authinfo.gpg entry
|
machine bitbucket.org login tarsius password 12345
|
or iff that is undefined, for backward compatibility
|
machine tarsius@bitbucket.org password 12345"
|
(require 'auth-source)
|
(and (string-match "\\`\\([^@]+\\)@\\([^@]+\\)\\'" key)
|
(let* ((user (match-string 1 key))
|
(host (match-string 2 key))
|
(secret
|
(plist-get
|
(car (or (auth-source-search :max 1 :host host :user user)
|
(auth-source-search :max 1 :host key)))
|
:secret)))
|
(if (functionp secret)
|
(funcall secret)
|
secret))))
|
|
(defun magit-process-password-prompt (process string)
|
"Find a password based on prompt STRING and send it to git.
|
Use `magit-process-password-prompt-regexps' to find a known
|
prompt. If and only if one is found, then call functions in
|
`magit-process-find-password-functions' until one of them returns
|
the password. If all function return nil, then read the password
|
from the user."
|
(when-let ((prompt (magit-process-match-prompt
|
magit-process-password-prompt-regexps string)))
|
(process-send-string
|
process (magit-process-kill-on-abort process
|
(concat (or (when-let ((key (match-string 99 string)))
|
(run-hook-with-args-until-success
|
'magit-process-find-password-functions key))
|
(read-passwd prompt))
|
"\n")))))
|
|
(defun magit-process-username-prompt (process string)
|
"Forward username prompts to the user."
|
(--when-let (magit-process-match-prompt
|
magit-process-username-prompt-regexps string)
|
(process-send-string
|
process (magit-process-kill-on-abort process
|
(concat (read-string it nil nil (user-login-name)) "\n")))))
|
|
(defun magit-process-match-prompt (prompts string)
|
"Match STRING against PROMPTS and set match data.
|
Return the matched string suffixed with \": \", if needed."
|
(when (--any-p (string-match it string) prompts)
|
(let ((prompt (match-string 0 string)))
|
(cond ((string-suffix-p ": " prompt) prompt)
|
((string-suffix-p ":" prompt) (concat prompt " "))
|
(t (concat prompt ": "))))))
|
|
(defun magit--process-coding-system ()
|
(let ((fro (or magit-git-output-coding-system
|
(car default-process-coding-system)))
|
(to (cdr default-process-coding-system)))
|
(if magit-process-ensure-unix-line-ending
|
(cons (coding-system-change-eol-conversion fro 'unix)
|
(coding-system-change-eol-conversion to 'unix))
|
(cons fro to))))
|
|
(defvar magit-credential-hook nil
|
"Hook run before Git needs credentials.")
|
|
(defvar magit-credential-cache-daemon-process nil)
|
|
(defun magit-maybe-start-credential-cache-daemon ()
|
"Maybe start a `git-credential-cache--daemon' process.
|
|
If such a process is already running or if the value of option
|
`magit-credential-cache-daemon-socket' is nil, then do nothing.
|
Otherwise start the process passing the value of that options
|
as argument."
|
(unless (or (not magit-credential-cache-daemon-socket)
|
(process-live-p magit-credential-cache-daemon-process)
|
(memq magit-credential-cache-daemon-process
|
(list-system-processes)))
|
(setq magit-credential-cache-daemon-process
|
(or (--first (let* ((attr (process-attributes it))
|
(comm (cdr (assq 'comm attr)))
|
(user (cdr (assq 'user attr))))
|
(and (string= comm "git-credential-cache--daemon")
|
(string= user user-login-name)))
|
(list-system-processes))
|
(condition-case nil
|
(start-process "git-credential-cache--daemon"
|
" *git-credential-cache--daemon*"
|
magit-git-executable
|
"credential-cache--daemon"
|
magit-credential-cache-daemon-socket)
|
;; Some Git implementations (e.g. Windows) won't have
|
;; this program; if we fail the first time, stop trying.
|
((debug error)
|
(remove-hook 'magit-credential-hook
|
#'magit-maybe-start-credential-cache-daemon)))))))
|
|
(add-hook 'magit-credential-hook #'magit-maybe-start-credential-cache-daemon)
|
|
(defun tramp-sh-handle-start-file-process--magit-tramp-process-environment
|
(fn name buffer program &rest args)
|
(if magit-tramp-process-environment
|
(apply fn name buffer
|
(car magit-tramp-process-environment)
|
(append (cdr magit-tramp-process-environment)
|
(cons program args)))
|
(apply fn name buffer program args)))
|
|
(advice-add 'tramp-sh-handle-start-file-process :around
|
'tramp-sh-handle-start-file-process--magit-tramp-process-environment)
|
|
(defun tramp-sh-handle-process-file--magit-tramp-process-environment
|
(fn program &optional infile destination display &rest args)
|
(if magit-tramp-process-environment
|
(apply fn "env" infile destination display
|
(append magit-tramp-process-environment
|
(cons program args)))
|
(apply fn program infile destination display args)))
|
|
(advice-add 'tramp-sh-handle-process-file :around
|
'tramp-sh-handle-process-file--magit-tramp-process-environment)
|
|
(defvar magit-mode-line-process-map
|
(let ((map (make-sparse-keymap)))
|
(define-key map (kbd "<mode-line> <mouse-1>")
|
'magit-process-buffer)
|
map)
|
"Keymap for `mode-line-process'.")
|
|
(defun magit-process-set-mode-line (program args)
|
"Display the git command (sans arguments) in the mode line."
|
(when (equal program magit-git-executable)
|
(setq args (nthcdr (length magit-git-global-arguments) args)))
|
(let ((str (concat " " (propertize
|
(concat (file-name-nondirectory program)
|
(and args (concat " " (car args))))
|
'mouse-face 'highlight
|
'keymap magit-mode-line-process-map
|
'help-echo "mouse-1: Show process buffer"
|
'face 'magit-mode-line-process))))
|
(magit-repository-local-set 'mode-line-process str)
|
(dolist (buf (magit-mode-get-buffers))
|
(with-current-buffer buf
|
(setq mode-line-process str)))
|
(force-mode-line-update t)))
|
|
(defun magit-process-set-mode-line-error-status (&optional error str)
|
"Apply an error face to the string set by `magit-process-set-mode-line'.
|
|
If ERROR is supplied, include it in the `mode-line-process' tooltip.
|
|
If STR is supplied, it replaces the `mode-line-process' text."
|
(setq str (or str (magit-repository-local-get 'mode-line-process)))
|
(when str
|
(setq error (format "%smouse-1: Show process buffer"
|
(if (stringp error)
|
(concat error "\n\n")
|
"")))
|
(setq str (concat " " (propertize
|
(substring-no-properties str 1)
|
'mouse-face 'highlight
|
'keymap magit-mode-line-process-map
|
'help-echo error
|
'face 'magit-mode-line-process-error)))
|
(magit-repository-local-set 'mode-line-process str)
|
(dolist (buf (magit-mode-get-buffers))
|
(with-current-buffer buf
|
(setq mode-line-process str)))
|
(force-mode-line-update t)
|
;; We remove any error status from the mode line when a magit
|
;; buffer is refreshed (see `magit-refresh-buffer'), but we must
|
;; ensure that we ignore any refreshes during the remainder of the
|
;; current command -- otherwise a newly-set error status would be
|
;; removed before it was seen. We set a flag which prevents the
|
;; status from being removed prior to the next command, so that
|
;; the error status is guaranteed to remain visible until then.
|
(let ((repokey (magit-repository-local-repository)))
|
;; The following closure captures the repokey value, and is
|
;; added to `pre-command-hook'.
|
(cl-labels ((enable-magit-process-unset-mode-line
|
() ;; Remove ourself from the hook variable, so
|
;; that we only run once.
|
(remove-hook 'pre-command-hook
|
#'enable-magit-process-unset-mode-line)
|
;; Clear the inhibit flag for the repository in
|
;; which we set it.
|
(magit-repository-local-set
|
'inhibit-magit-process-unset-mode-line nil repokey)))
|
;; Set the inhibit flag until the next command is invoked.
|
(magit-repository-local-set
|
'inhibit-magit-process-unset-mode-line t repokey)
|
(add-hook 'pre-command-hook
|
#'enable-magit-process-unset-mode-line)))))
|
|
(defun magit-process-unset-mode-line-error-status ()
|
"Remove any current error status from the mode line."
|
(let ((status (or mode-line-process
|
(magit-repository-local-get 'mode-line-process))))
|
(when (and status
|
(eq (get-text-property 1 'face status)
|
'magit-mode-line-process-error))
|
(magit-process-unset-mode-line))))
|
|
(defun magit-process-unset-mode-line ()
|
"Remove the git command from the mode line."
|
(unless (magit-repository-local-get 'inhibit-magit-process-unset-mode-line)
|
(magit-repository-local-set 'mode-line-process nil)
|
(dolist (buf (magit-mode-get-buffers))
|
(with-current-buffer buf (setq mode-line-process nil)))
|
(force-mode-line-update t)))
|
|
(defvar magit-process-error-message-regexps
|
(list "^\\*ERROR\\*: Canceled by user$"
|
"^\\(?:error\\|fatal\\|git\\): \\(.*\\)$"
|
"^\\(Cannot rebase:.*\\)$"))
|
|
(define-error 'magit-git-error "Git error")
|
|
(defun magit-process-error-summary (process-buf section)
|
"A one-line error summary from the given SECTION."
|
(or (and (buffer-live-p process-buf)
|
(with-current-buffer process-buf
|
(and (oref section content)
|
(save-excursion
|
(goto-char (oref section end))
|
(run-hook-wrapped
|
'magit-process-error-message-regexps
|
(lambda (re)
|
(save-excursion
|
(and (re-search-backward
|
re (oref section start) t)
|
(or (match-string-no-properties 1)
|
(and (not magit-process-raise-error)
|
'suppressed))))))))))
|
"Git failed"))
|
|
(defun magit-process-error-tooltip (process-buf section)
|
"Returns the text from SECTION of the PROCESS-BUF buffer.
|
|
Limited by `magit-process-error-tooltip-max-lines'."
|
(and (integerp magit-process-error-tooltip-max-lines)
|
(> magit-process-error-tooltip-max-lines 0)
|
(buffer-live-p process-buf)
|
(with-current-buffer process-buf
|
(save-excursion
|
(goto-char (or (oref section content)
|
(oref section start)))
|
(buffer-substring-no-properties
|
(point)
|
(save-excursion
|
(forward-line magit-process-error-tooltip-max-lines)
|
(goto-char
|
(if (> (point) (oref section end))
|
(oref section end)
|
(point)))
|
;; Remove any trailing whitespace.
|
(when (re-search-backward "[^[:space:]\n]"
|
(oref section start) t)
|
(forward-char 1))
|
(point)))))))
|
|
(defvar-local magit-this-error nil)
|
|
(defvar magit-process-finish-apply-ansi-colors nil)
|
|
(defun magit-process-finish (arg &optional process-buf command-buf
|
default-dir section)
|
(unless (integerp arg)
|
(setq process-buf (process-buffer arg))
|
(setq command-buf (process-get arg 'command-buf))
|
(setq default-dir (process-get arg 'default-dir))
|
(setq section (process-get arg 'section))
|
(setq arg (process-exit-status arg)))
|
(when (fboundp 'dired-uncache)
|
(dired-uncache default-dir))
|
(when (buffer-live-p process-buf)
|
(with-current-buffer process-buf
|
(let ((inhibit-read-only t)
|
(marker (oref section start)))
|
(goto-char marker)
|
(save-excursion
|
(delete-char 3)
|
(set-marker-insertion-type marker nil)
|
(insert (propertize (format "%3s" arg)
|
'magit-section section
|
'face (if (= arg 0)
|
'magit-process-ok
|
'magit-process-ng)))
|
(set-marker-insertion-type marker t))
|
(when magit-process-finish-apply-ansi-colors
|
(ansi-color-apply-on-region (oref section content)
|
(oref section end)))
|
(if (= (oref section end)
|
(+ (line-end-position) 2))
|
(save-excursion
|
(goto-char (1+ (line-end-position)))
|
(delete-char -1)
|
(oset section content nil))
|
(let ((buf (magit-process-buffer t)))
|
(when (and (= arg 0)
|
(not (--any-p (eq (window-buffer it) buf)
|
(window-list))))
|
(magit-section-hide section)))))))
|
(if (= arg 0)
|
;; Unset the `mode-line-process' value upon success.
|
(magit-process-unset-mode-line)
|
;; Otherwise process the error.
|
(let ((msg (magit-process-error-summary process-buf section)))
|
;; Change `mode-line-process' to an error face upon failure.
|
(if magit-process-display-mode-line-error
|
(magit-process-set-mode-line-error-status
|
(or (magit-process-error-tooltip process-buf section)
|
msg))
|
(magit-process-unset-mode-line))
|
;; Either signal the error, or else display the error summary in
|
;; the status buffer and with a message in the echo area.
|
(cond
|
(magit-process-raise-error
|
(signal 'magit-git-error (list (format "%s (in %s)" msg default-dir))))
|
((not (eq msg 'suppressed))
|
(when (buffer-live-p process-buf)
|
(with-current-buffer process-buf
|
(when-let ((status-buf (magit-mode-get-buffer 'magit-status-mode)))
|
(with-current-buffer status-buf
|
(setq magit-this-error msg)))))
|
(message "%s ... [%s buffer %s for details]" msg
|
(if-let ((key (and (buffer-live-p command-buf)
|
(with-current-buffer command-buf
|
(car (where-is-internal
|
'magit-process-buffer))))))
|
(format "Hit %s to see" (key-description key))
|
"See")
|
(buffer-name process-buf))))))
|
arg)
|
|
(defun magit-process-display-buffer (process)
|
(when (process-live-p process)
|
(let ((buf (process-buffer process)))
|
(cond ((not (buffer-live-p buf)))
|
((= magit-process-popup-time 0)
|
(if (minibufferp)
|
(switch-to-buffer-other-window buf)
|
(pop-to-buffer buf)))
|
((> magit-process-popup-time 0)
|
(run-with-timer magit-process-popup-time nil
|
(lambda (p)
|
(when (eq (process-status p) 'run)
|
(let ((buf (process-buffer p)))
|
(when (buffer-live-p buf)
|
(if (minibufferp)
|
(switch-to-buffer-other-window buf)
|
(pop-to-buffer buf))))))
|
process))))))
|
|
(defun magit--log-action (summary line list)
|
(let (heading lines)
|
(if (cdr list)
|
(progn (setq heading (funcall summary list))
|
(setq lines (mapcar line list)))
|
(setq heading (funcall line (car list))))
|
(with-current-buffer (magit-process-buffer t)
|
(goto-char (1- (point-max)))
|
(let ((inhibit-read-only t))
|
(magit-insert-section (message)
|
(magit-insert-heading (concat " * " heading))
|
(when lines
|
(dolist (line lines)
|
(insert line "\n"))
|
(insert "\n"))))
|
(let ((inhibit-message t))
|
(when heading
|
(setq lines (cons heading lines)))
|
(message (mapconcat #'identity lines "\n"))))))
|
|
;;; _
|
(provide 'magit-process)
|
;;; magit-process.el ends here
|
