.emacs.d.git - Gitblit

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2018-11-17 c4001ccd1864293b64aa37d83a9d9457eb875e70

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5cb5f7	1	;;; magit-process.el --- process functionality -- lexical-binding: t --
C	2
	3	;; Copyright (C) 2010-2018 The Magit Project Contributors
	4	;;
	5	;; You should have received a copy of the AUTHORS.md file which
	6	;; lists all contributors. If not, see http://magit.vc/authors.
	7
	8	;; Author: Jonas Bernoulli <jonas@bernoul.li>
	9	;; Maintainer: Jonas Bernoulli <jonas@bernoul.li>
	10
	11	;; Magit is free software; you can redistribute it and/or modify it
	12	;; under the terms of the GNU General Public License as published by
	13	;; the Free Software Foundation; either version 3, or (at your option)
	14	;; any later version.
	15	;;
	16	;; Magit is distributed in the hope that it will be useful, but WITHOUT
	17	;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	18	;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
	19	;; License for more details.
	20	;;
	21	;; You should have received a copy of the GNU General Public License
	22	;; along with Magit. If not, see http://www.gnu.org/licenses.
	23
	24	;;; Commentary:
	25
	26	;; This library implements the tools used to run Git for side-effects.
	27
	28	;; Note that the functions used to run Git and then consume its
	29	;; output, are defined in `magit-git.el'. There's a bit of overlap
	30	;; though.
	31
	32	;;; Code:
	33
	34	(require 'ansi-color)
	35	(require 'cl-lib)
	36	(require 'dash)
	37
	38	(eval-when-compile
	39	(require 'subr-x))
	40
	41	(require 'with-editor)
	42	(require 'magit-utils)
	43	(require 'magit-section)
	44	(require 'magit-git)
	45	(require 'magit-mode)
	46
	47	(declare-function auth-source-search "auth-source"
	48	(&rest spec &key max require create delete &allow-other-keys))
	49
	50	;;; Options
	51
	52	(defcustom magit-process-connection-type (not (eq system-type 'cygwin))
	53	"Connection type used for the Git process.
	54
	55	If nil, use pipes: this is usually more efficient, and works on Cygwin.
	56	If t, use ptys: this enables Magit to prompt for passphrases when needed."
	57	:group 'magit-process
	58	:type '(choice (const :tag "pipe" nil)
	59	(const :tag "pty" t)))
	60
	61	(defcustom magit-need-cygwin-noglob
	62	(and (eq system-type 'windows-nt)
	63	(with-temp-buffer
	64	(let ((process-environment
	65	(append magit-git-environment process-environment)))
	66	(condition-case e
	67	(process-file magit-git-executable
	68	nil (current-buffer) nil
	69	"-c" "alias.echo=!echo" "echo" "x{0}")
	70	(file-error
	71	(lwarn 'magit-process :warning
	72	"Could not run Git: %S" e))))
	73	(equal "x0\n" (buffer-string))))
	74	"Whether to use a workaround for Cygwin's globbing behavior.
	75
	76	If non-nil, add environment variables to `process-environment' to
	77	prevent the git.exe distributed by Cygwin and MSYS2 from
	78	attempting to perform glob expansion when called from a native
	79	Windows build of Emacs. See #2246."
	80	:package-version '(magit . "2.3.0")
	81	:group 'magit-process
	82	:type '(choice (const :tag "Yes" t)
	83	(const :tag "No" nil)))
	84
	85	(defcustom magit-process-popup-time -1
	86	"Popup the process buffer if a command takes longer than this many seconds."
	87	:group 'magit-process
	88	:type '(choice (const :tag "Never" -1)
	89	(const :tag "Immediately" 0)
	90	(integer :tag "After this many seconds")))
	91
	92	(defcustom magit-process-log-max 32
	93	"Maximum number of sections to keep in a process log buffer.
	94	When adding a new section would go beyond the limit set here,
	95	then the older half of the sections are remove. Sections that
	96	belong to processes that are still running are never removed.
	97	When this is nil, no sections are ever removed."
	98	:package-version '(magit . "2.1.0")
	99	:group 'magit-process
	100	:type '(choice (const :tag "Never remove old sections" nil) integer))
	101
	102	(defcustom magit-process-error-tooltip-max-lines 20
	103	"The number of lines for `magit-process-error-lines' to return.
	104
	105	These are displayed in a tooltip for `mode-line-process' errors.
	106
	107	If `magit-process-error-tooltip-max-lines' is nil, the tooltip
	108	displays the text of `magit-process-error-summary' instead."
	109	:package-version '(magit . "2.12.0")
	110	:group 'magit-process
	111	:type '(choice (const :tag "Use summary line" nil)
	112	integer))
	113
	114	(defcustom magit-credential-cache-daemon-socket
	115	(--some (pcase-let ((`(,prog . ,args) (split-string it)))
	116	(if (and prog
	117	(string-match-p
	118	"\\`\$?:\\(?:/.*/\$?git-credential-\\)?cache\\'" prog))
	119	(or (cl-loop for (opt val) on args
	120	if (string= opt "--socket")
	121	return val)
	122	(expand-file-name "~/.git-credential-cache/socket"))))
	123	;; Note: `magit-process-file' is not yet defined when
	124	;; evaluating this form, so we use `process-lines'.
	125	(ignore-errors
	126	(let ((process-environment
	127	(append magit-git-environment process-environment)))
	128	(process-lines magit-git-executable
	129	"config" "--get-all" "credential.helper"))))
	130	"If non-nil, start a credential cache daemon using this socket.
	131
	132	When using Git's cache credential helper in the normal way, Emacs
	133	sends a SIGHUP to the credential daemon after the git subprocess
	134	has exited, causing the daemon to also quit. This can be avoided
	135	by starting the `git-credential-cache--daemon' process directly
	136	from Emacs.
	137
	138	The function `magit-maybe-start-credential-cache-daemon' takes
	139	care of starting the daemon if necessary, using the value of this
	140	option as the socket. If this option is nil, then it does not
	141	start any daemon. Likewise if another daemon is already running,
	142	then it starts no new daemon. This function has to be a member
	143	of the hook variable `magit-credential-hook' for this to work.
	144	If an error occurs while starting the daemon, most likely because
	145	the necessary executable is missing, then the function removes
	146	itself from the hook, to avoid further futile attempts."
	147	:package-version '(magit . "2.3.0")
	148	:group 'magit-process
	149	:type '(choice (file :tag "Socket")
	150	(const :tag "Don't start a cache daemon" nil)))
	151
	152	(defcustom magit-process-yes-or-no-prompt-regexp
	153	" [\[(]\$[Yy]\\(?:es\$?\\)[/\|]\$[Nn]o?\$[\])] ?[?:] ?$"
	154	"Regexp matching Yes-or-No prompts of Git and its subprocesses."
	155	:package-version '(magit . "2.1.0")
	156	:group 'magit-process
	157	:type 'regexp)
	158
	159	(defcustom magit-process-password-prompt-regexps
	160	'("^\$Enter \$?[Pp]assphrase\$ for \\(RSA \$?key '.*'\\)?: ?$"
	161	;; Match-group 99 is used to identify the "user@host" part.
	162	"^\$Enter \$?[Pp]assword\$ for '\\(https?://\$?\$?99:.*\$'\\)?: ?$"
	163	"^.*'s password: ?$"
	164	"^Yubikey for .*: ?$"
	165	"^Enter PIN for .*: ?$")
	166	"List of regexps matching password prompts of Git and its subprocesses.
	167	Also see `magit-process-find-password-functions'."
	168	:package-version '(magit . "2.8.0")
	169	:group 'magit-process
	170	:type '(repeat (regexp)))
	171
	172	(defcustom magit-process-find-password-functions nil
	173	"List of functions to try in sequence to get a password.
	174
	175	These functions may be called when git asks for a password, which
	176	is detected using `magit-process-password-prompt-regexps'. They
	177	are called if and only if matching the prompt resulted in the
	178	value of the 99th submatch to be non-nil. Therefore users can
	179	control for which prompts these functions should be called by
	180	putting the host name in the 99th submatch, or not.
	181
	182	If the functions are called, then they are called in the order
	183	given, with the host name as only argument, until one of them
	184	returns non-nil. If they are not called or none of them returns
	185	non-nil, then the password is read from the user instead."
	186	:package-version '(magit . "2.3.0")
	187	:group 'magit-process
	188	:type 'hook
	189	:options '(magit-process-password-auth-source))
	190
	191	(defcustom magit-process-username-prompt-regexps
	192	'("^Username for '.*': ?$")
	193	"List of regexps matching username prompts of Git and its subprocesses."
	194	:package-version '(magit . "2.1.0")
	195	:group 'magit-process
	196	:type '(repeat (regexp)))
	197
	198	(defcustom magit-process-ensure-unix-line-ending t
	199	"Whether Magit should ensure a unix coding system when talking to Git."
	200	:package-version '(magit . "2.6.0")
	201	:group 'magit-process
	202	:type 'boolean)
	203
	204	(defcustom magit-process-display-mode-line-error t
	205	"Whether Magit should retain and highlight process errors in the mode line."
	206	:package-version '(magit . "2.12.0")
	207	:group 'magit-process
	208	:type 'boolean)
	209
	210	(defface magit-process-ok
	211	'((t :inherit magit-section-heading :foreground "green"))
	212	"Face for zero exit-status."
	213	:group 'magit-faces)
	214
	215	(defface magit-process-ng
	216	'((t :inherit magit-section-heading :foreground "red"))
	217	"Face for non-zero exit-status."
	218	:group 'magit-faces)
	219
	220	(defface magit-mode-line-process
	221	'((t :inherit mode-line-emphasis))
	222	"Face for `mode-line-process' status when Git is running for side-effects."
	223	:group 'magit-faces)
	224
	225	(defface magit-mode-line-process-error
	226	'((t :inherit error))
	227	"Face for `mode-line-process' error status.
	228
	229	Used when `magit-process-display-mode-line-error' is non-nil."
	230	:group 'magit-faces)
	231
	232	;;; Process Mode
	233
	234	(defvar magit-process-mode-map
	235	(let ((map (make-sparse-keymap)))
	236	(set-keymap-parent map magit-mode-map)
	237	map)
	238	"Keymap for `magit-process-mode'.")
	239
	240	(define-derived-mode magit-process-mode magit-mode "Magit Process"
	241	"Mode for looking at Git process output."
	242	:group 'magit-process
	243	(hack-dir-local-variables-non-file-buffer)
	244	(setq imenu-prev-index-position-function
	245	'magit-imenu--process-prev-index-position-function)
	246	(setq imenu-extract-index-name-function
	247	'magit-imenu--process-extract-index-name-function))
	248
	249	(defun magit-process-buffer (&optional nodisplay)
	250	"Display the current repository's process buffer.
	251
	252	If that buffer doesn't exist yet, then create it.
	253	Non-interactively return the buffer and unless
	254	optional NODISPLAY is non-nil also display it."
	255	(interactive)
	256	(let ((topdir (magit-toplevel)))
	257	(unless topdir
	258	(magit--with-safe-default-directory nil
	259	(setq topdir default-directory)
	260	(let (prev)
	261	(while (not (equal topdir prev))
	262	(setq prev topdir)
	263	(setq topdir (file-name-directory (directory-file-name topdir)))))))
	264	(let ((buffer (or (--first (with-current-buffer it
	265	(and (eq major-mode 'magit-process-mode)
	266	(equal default-directory topdir)))
	267	(buffer-list))
	268	(let ((default-directory topdir))
	269	(magit-generate-new-buffer 'magit-process-mode)))))
	270	(with-current-buffer buffer
	271	(if magit-root-section
	272	(when magit-process-log-max
	273	(magit-process-truncate-log))
	274	(magit-process-mode)
	275	(let ((inhibit-read-only t)
	276	(magit-insert-section--parent nil)
	277	(magit-insert-section--oldroot nil))
	278	(make-local-variable 'text-property-default-nonsticky)
	279	(magit-insert-section (processbuf)
	280	(insert "\n")))))
	281	(unless nodisplay
	282	(magit-display-buffer buffer))
	283	buffer)))
	284
	285	(defun magit-process-kill ()
	286	"Kill the process at point."
	287	(interactive)
	288	(when-let ((process (magit-section-value-if 'process)))
	289	(unless (eq (process-status process) 'run)
	290	(user-error "Process isn't running"))
	291	(magit-confirm 'kill-process)
	292	(kill-process process)))
	293
	294	;;; Synchronous Processes
	295
	296	(defvar magit-process-raise-error nil)
	297
	298	(defun magit-git (&rest args)
	299	"Call Git synchronously in a separate process, for side-effects.
	300
	301	Option `magit-git-executable' specifies the Git executable.
	302	The arguments ARGS specify arguments to Git, they are flattened
	303	before use.
	304
	305	Process output goes into a new section in the buffer returned by
	306	`magit-process-buffer'. If Git exits with a non-zero status,
	307	then raise an error."
	308	(let ((magit-process-raise-error t))
	309	(magit-call-git args)))
	310
	311	(defun magit-run-git (&rest args)
	312	"Call Git synchronously in a separate process, and refresh.
	313
	314	Option `magit-git-executable' specifies the Git executable and
	315	option `magit-git-global-arguments' specifies constant arguments.
	316	The arguments ARGS specify arguments to Git, they are flattened
	317	before use.
	318
	319	After Git returns, the current buffer (if it is a Magit buffer)
	320	as well as the current repository's status buffer are refreshed.
	321
	322	Process output goes into a new section in the buffer returned by
	323	`magit-process-buffer'."
	324	(let ((magit--refresh-cache (list (cons 0 0))))
	325	(magit-call-git args)
	326	(when (member (car args) '("init" "clone"))
	327	;; Creating a new repository invalidates the cache.
	328	(setq magit--refresh-cache nil))
	329	(magit-refresh)))
	330
	331	(defvar magit-pre-call-git-hook nil)
	332
	333	(defun magit-call-git (&rest args)
	334	"Call Git synchronously in a separate process.
	335
	336	Option `magit-git-executable' specifies the Git executable and
	337	option `magit-git-global-arguments' specifies constant arguments.
	338	The arguments ARGS specify arguments to Git, they are flattened
	339	before use.
	340
	341	Process output goes into a new section in the buffer returned by
	342	`magit-process-buffer'."
	343	(run-hooks 'magit-pre-call-git-hook)
	344	(let ((default-process-coding-system (magit--process-coding-system)))
	345	(apply #'magit-call-process magit-git-executable
	346	(magit-process-git-arguments args))))
	347
	348	(defun magit-call-process (program &rest args)
	349	"Call PROGRAM synchronously in a separate process.
	350	Process output goes into a new section in the buffer returned by
	351	`magit-process-buffer'."
	352	(pcase-let ((`(,process-buf . ,section)
	353	(magit-process-setup program args)))
	354	(magit-process-finish
	355	(let ((inhibit-read-only t))
	356	(apply #'magit-process-file program nil process-buf nil args))
	357	process-buf (current-buffer) default-directory section)))
	358
	359	(defun magit-process-file (process &optional infile buffer display &rest args)
	360	"Process files synchronously in a separate process.
	361	Identical to `process-file' but temporarily enable Cygwin's
	362	\"noglob\" option during the call and ensure unix eol
	363	conversion."
	364	(let ((process-environment (magit-process-environment))
	365	(default-process-coding-system (magit--process-coding-system)))
	366	(apply #'process-file process infile buffer display args)))
	367
	368	(defun magit-process-environment ()
	369	;; The various w32 hacks are only applicable when running on the
	370	;; local machine. As of Emacs 25.1, a local binding of
	371	;; process-environment different from the top-level value affects
	372	;; the environment used in
	373	;; tramp-sh-handle-{start-file-process,process-file}.
	374	(let ((local (not (file-remote-p default-directory))))
	375	(append magit-git-environment
	376	(and local
	377	(cdr (assoc magit-git-executable magit-git-w32-path-hack)))
	378	(and local magit-need-cygwin-noglob
	379	(mapcar (lambda (var)
	380	(concat var "=" (--if-let (getenv var)
	381	(concat it " noglob")
	382	"noglob")))
	383	'("CYGWIN" "MSYS")))
	384	process-environment)))
	385
	386	(defvar magit-this-process nil)
	387
	388	(defun magit-run-git-with-input (&rest args)
	389	"Call Git in a separate process.
	390	ARGS is flattened and then used as arguments to Git.
	391
	392	The current buffer's content is used as the process' standard
	393	input.
	394
	395	Option `magit-git-executable' specifies the Git executable and
	396	option `magit-git-global-arguments' specifies constant arguments.
	397	The remaining arguments ARGS specify arguments to Git, they are
	398	flattened before use."
	399	(when (eq system-type 'windows-nt)
	400	;; On w32, git expects UTF-8 encoded input, ignore any user
	401	;; configuration telling us otherwise (see #3250).
	402	(encode-coding-region (point-min) (point-max) 'utf-8-unix))
	403	(if (file-remote-p default-directory)
	404	;; We lack `process-file-region', so fall back to asynch +
	405	;; waiting in remote case.
	406	(progn
	407	(magit-start-git (current-buffer) args)
	408	(while (and magit-this-process
	409	(eq (process-status magit-this-process) 'run))
	410	(sleep-for 0.005)))
	411	(run-hooks 'magit-pre-call-git-hook)
	412	(pcase-let* ((process-environment (magit-process-environment))
	413	(default-process-coding-system (magit--process-coding-system))
	414	(flat-args (magit-process-git-arguments args))
	415	(`(,process-buf . ,section)
	416	(magit-process-setup magit-git-executable flat-args))
	417	(inhibit-read-only t))
	418	(magit-process-finish
	419	(apply #'call-process-region (point-min) (point-max)
	420	magit-git-executable nil process-buf nil flat-args)
	421	process-buf nil default-directory section))))
	422
	423	(defun magit-run-git-with-logfile (file &rest args)
	424	"Call Git in a separate process and log its output to FILE.
	425	This function might have a short halflive."
	426	(apply #'magit-process-file magit-git-executable nil `(:file ,file) nil
	427	(magit-process-git-arguments args))
	428	(magit-refresh))
	429
	430	;;; Asynchronous Processes
	431
	432	(defun magit-run-git-async (&rest args)
	433	"Start Git, prepare for refresh, and return the process object.
	434	ARGS is flattened and then used as arguments to Git.
	435
	436	Display the command line arguments in the echo area.
	437
	438	After Git returns some buffers are refreshed: the buffer that was
	439	current when this function was called (if it is a Magit buffer
	440	and still alive), as well as the respective Magit status buffer.
	441
	442	See `magit-start-process' for more information."
	443	(message "Running %s %s" magit-git-executable
	444	(let ((m (mapconcat #'identity (-flatten args) " ")))
	445	(remove-list-of-text-properties 0 (length m) '(face) m)
	446	m))
	447	(magit-start-git nil args))
	448
	449	(defun magit-run-git-with-editor (&rest args)
	450	"Export GIT_EDITOR and start Git.
	451	Also prepare for refresh and return the process object.
	452	ARGS is flattened and then used as arguments to Git.
	453
	454	Display the command line arguments in the echo area.
	455
	456	After Git returns some buffers are refreshed: the buffer that was
	457	current when this function was called (if it is a Magit buffer
	458	and still alive), as well as the respective Magit status buffer.
	459
	460	See `magit-start-process' and `with-editor' for more information."
	461	(magit--record-separated-gitdir)
	462	(magit-with-editor (magit-run-git-async args)))
	463
	464	(defun magit-run-git-sequencer (&rest args)
	465	"Export GIT_EDITOR and start Git.
	466	Also prepare for refresh and return the process object.
	467	ARGS is flattened and then used as arguments to Git.
	468
	469	Display the command line arguments in the echo area.
	470
	471	After Git returns some buffers are refreshed: the buffer that was
	472	current when this function was called (if it is a Magit buffer
	473	and still alive), as well as the respective Magit status buffer.
	474	If the sequence stops at a commit, make the section representing
	475	that commit the current section by moving `point' there.
	476
	477	See `magit-start-process' and `with-editor' for more information."
	478	(apply #'magit-run-git-with-editor args)
	479	(set-process-sentinel magit-this-process #'magit-sequencer-process-sentinel)
	480	magit-this-process)
	481
	482	(defvar magit-pre-start-git-hook nil)
	483
	484	(defun magit-start-git (input &rest args)
	485	"Start Git, prepare for refresh, and return the process object.
	486
	487	If INPUT is non-nil, it has to be a buffer or the name of an
	488	existing buffer. The buffer content becomes the processes
	489	standard input.
	490
	491	Option `magit-git-executable' specifies the Git executable and
	492	option `magit-git-global-arguments' specifies constant arguments.
	493	The remaining arguments ARGS specify arguments to Git, they are
	494	flattened before use.
	495
	496	After Git returns some buffers are refreshed: the buffer that was
	497	current when this function was called (if it is a Magit buffer
	498	and still alive), as well as the respective Magit status buffer.
	499
	500	See `magit-start-process' for more information."
	501	(run-hooks 'magit-pre-start-git-hook)
	502	(let ((default-process-coding-system (magit--process-coding-system)))
	503	(apply #'magit-start-process magit-git-executable input
	504	(magit-process-git-arguments args))))
	505
	506	(defun magit-start-process (program &optional input &rest args)
	507	"Start PROGRAM, prepare for refresh, and return the process object.
	508
	509	If optional argument INPUT is non-nil, it has to be a buffer or
	510	the name of an existing buffer. The buffer content becomes the
	511	processes standard input.
	512
	513	The process is started using `start-file-process' and then setup
	514	to use the sentinel `magit-process-sentinel' and the filter
	515	`magit-process-filter'. Information required by these functions
	516	is stored in the process object. When this function returns the
	517	process has not started to run yet so it is possible to override
	518	the sentinel and filter.
	519
	520	After the process returns, `magit-process-sentinel' refreshes the
	521	buffer that was current when `magit-start-process' was called (if
	522	it is a Magit buffer and still alive), as well as the respective
	523	Magit status buffer."
	524	(pcase-let*
	525	((`(,process-buf . ,section)
	526	(magit-process-setup program args))
	527	(process
	528	(let ((process-connection-type
	529	;; Don't use a pty, because it would set icrnl
	530	;; which would modify the input (issue #20).
	531	(and (not input) magit-process-connection-type))
	532	(process-environment (magit-process-environment))
	533	(default-process-coding-system (magit--process-coding-system)))
	534	(apply #'start-file-process
	535	(file-name-nondirectory program)
	536	process-buf program args))))
	537	(with-editor-set-process-filter process #'magit-process-filter)
	538	(set-process-sentinel process #'magit-process-sentinel)
	539	(set-process-buffer process process-buf)
	540	(when (eq system-type 'windows-nt)
	541	;; On w32, git expects UTF-8 encoded input, ignore any user
	542	;; configuration telling us otherwise.
	543	(set-process-coding-system process 'utf-8-unix))
	544	(process-put process 'section section)
	545	(process-put process 'command-buf (current-buffer))
	546	(process-put process 'default-dir default-directory)
	547	(when inhibit-magit-refresh
	548	(process-put process 'inhibit-refresh t))
	549	(oset section process process)
	550	(with-current-buffer process-buf
	551	(set-marker (process-mark process) (point)))
	552	(when input
	553	(with-current-buffer input
	554	(process-send-region process (point-min) (point-max))
	555	(process-send-eof process)))
	556	(setq magit-this-process process)
	557	(oset section value process)
	558	(magit-process-display-buffer process)
	559	process))
	560
	561	(defun magit-parse-git-async (&rest args)
	562	(setq args (magit-process-git-arguments args))
	563	(let ((command-buf (current-buffer))
	564	(process-buf (generate-new-buffer " temp"))
	565	(toplevel (magit-toplevel)))
	566	(with-current-buffer process-buf
	567	(setq default-directory toplevel)
	568	(let ((process
	569	(let ((process-connection-type nil)
	570	(process-environment (magit-process-environment))
	571	(default-process-coding-system
	572	(magit--process-coding-system)))
	573	(apply #'start-file-process "git" process-buf
	574	magit-git-executable args))))
	575	(process-put process 'command-buf command-buf)
	576	(process-put process 'parsed (point))
	577	(setq magit-this-process process)
	578	process))))
	579
	580	;;; Process Internals
	581
	582	(defun magit-process-setup (program args)
	583	(magit-process-set-mode-line program args)
	584	(let ((pwd default-directory)
	585	(buf (magit-process-buffer t)))
	586	(cons buf (with-current-buffer buf
	587	(prog1 (magit-process-insert-section pwd program args nil nil)
	588	(backward-char 1))))))
	589
	590	(defun magit-process-insert-section (pwd program args &optional errcode errlog)
	591	(let ((inhibit-read-only t)
	592	(magit-insert-section--parent magit-root-section)
	593	(magit-insert-section--oldroot nil))
	594	(goto-char (1- (point-max)))
	595	(magit-insert-section (process)
	596	(insert (if errcode
	597	(format "%3s " (propertize (number-to-string errcode)
	598	'face 'magit-process-ng))
	599	"run "))
	600	(unless (equal (expand-file-name pwd)
	601	(expand-file-name default-directory))
	602	(insert (file-relative-name pwd default-directory) ?\s))
	603	(cond
	604	((and args (equal program magit-git-executable))
	605	(setq args (-split-at (length magit-git-global-arguments) args))
	606	(insert (propertize (file-name-nondirectory program)
	607	'face 'magit-section-heading) " ")
	608	(insert (propertize (char-to-string magit-ellipsis)
	609	'face 'magit-section-heading
	610	'help-echo (mapconcat #'identity (car args) " ")))
	611	(insert " ")
	612	(insert (propertize (mapconcat #'shell-quote-argument (cadr args) " ")
	613	'face 'magit-section-heading)))
	614	((and args (equal program shell-file-name))
	615	(insert (propertize (cadr args) 'face 'magit-section-heading)))
	616	(t
	617	(insert (propertize (file-name-nondirectory program)
	618	'face 'magit-section-heading) " ")
	619	(insert (propertize (mapconcat #'shell-quote-argument args " ")
	620	'face 'magit-section-heading))))
	621	(magit-insert-heading)
	622	(when errlog
	623	(insert-file-contents errlog)
	624	(goto-char (1- (point-max))))
	625	(insert "\n"))))
	626
	627	(defun magit-process-truncate-log ()
	628	(let* ((head nil)
	629	(tail (oref magit-root-section children))
	630	(count (length tail)))
	631	(when (> (1+ count) magit-process-log-max)
	632	(while (and (cdr tail)
	633	(> count (/ magit-process-log-max 2)))
	634	(let* ((inhibit-read-only t)
	635	(section (car tail))
	636	(process (oref section process)))
	637	(cond ((not process))
	638	((memq (process-status process) '(exit signal))
	639	(delete-region (oref section start)
	640	(1+ (oref section end)))
	641	(cl-decf count))
	642	(t
	643	(push section head))))
	644	(pop tail))
	645	(oset magit-root-section children
	646	(nconc (reverse head) tail)))))
	647
	648	(defun magit-process-sentinel (process event)
	649	"Default sentinel used by `magit-start-process'."
	650	(when (memq (process-status process) '(exit signal))
	651	(setq event (substring event 0 -1))
	652	(when (string-match "^finished" event)
	653	(message (concat (capitalize (process-name process)) " finished")))
	654	(magit-process-finish process)
	655	(when (eq process magit-this-process)
	656	(setq magit-this-process nil))
	657	(unless (process-get process 'inhibit-refresh)
	658	(let ((command-buf (process-get process 'command-buf)))
	659	(if (buffer-live-p command-buf)
	660	(with-current-buffer command-buf
	661	(magit-refresh))
	662	(with-temp-buffer
	663	(setq default-directory (process-get process 'default-dir))
	664	(magit-refresh)))))))
	665
	666	(defun magit-sequencer-process-sentinel (process event)
	667	"Special sentinel used by `magit-run-git-sequencer'."
	668	(when (memq (process-status process) '(exit signal))
	669	(magit-process-sentinel process event)
	670	(when-let ((process-buf (process-buffer process)))
	671	(when (buffer-live-p process-buf)
	672	(when-let ((status-buf (with-current-buffer process-buf
	673	(magit-mode-get-buffer 'magit-status-mode))))
	674	(with-current-buffer status-buf
	675	(--when-let
	676	(magit-get-section
	677	`((commit . ,(magit-rev-parse "HEAD"))
	678	(,(pcase (car (cadr (-split-at
	679	(1+ (length magit-git-global-arguments))
	680	(process-command process))))
	681	((or "rebase" "am") 'rebase-sequence)
	682	((or "cherry-pick" "revert") 'sequence)))
	683	(status)))
	684	(goto-char (oref it start))
	685	(magit-section-update-highlight))))))))
	686
	687	(defun magit-process-filter (proc string)
	688	"Default filter used by `magit-start-process'."
	689	(with-current-buffer (process-buffer proc)
	690	(let ((inhibit-read-only t))
	691	(magit-process-yes-or-no-prompt proc string)
	692	(magit-process-username-prompt proc string)
	693	(magit-process-password-prompt proc string)
	694	(goto-char (process-mark proc))
	695	(setq string (propertize string 'magit-section
	696	(process-get proc 'section)))
	697	;; Find last ^M in string. If one was found, ignore
	698	;; everything before it and delete the current line.
	699	(let ((ret-pos (length string)))
	700	(while (and (>= (cl-decf ret-pos) 0)
	701	(/= ?\r (aref string ret-pos))))
	702	(if (< ret-pos 0)
	703	(insert string)
	704	(delete-region (line-beginning-position) (point))
	705	(insert (substring string (1+ ret-pos)))))
	706	(set-marker (process-mark proc) (point)))))
	707
	708	(defmacro magit-process-kill-on-abort (proc &rest body)
	709	(declare (indent 1) (debug (form body)))
	710	(let ((map (cl-gensym)))
	711	`(let ((,map (make-sparse-keymap)))
	712	(set-keymap-parent ,map minibuffer-local-map)
	713	(define-key ,map "\C-g"
	714	(lambda ()
	715	(interactive)
	716	(ignore-errors (kill-process ,proc))
	717	(abort-recursive-edit)))
	718	(let ((minibuffer-local-map ,map))
	719	,@body))))
	720
	721	(defun magit-process-yes-or-no-prompt (process string)
	722	"Forward Yes-or-No prompts to the user."
	723	(when-let ((beg (string-match magit-process-yes-or-no-prompt-regexp string)))
	724	(let ((max-mini-window-height 30))
	725	(process-send-string
	726	process
	727	(downcase
	728	(concat
	729	(match-string
	730	(if (save-match-data
	731	(magit-process-kill-on-abort process
	732	(yes-or-no-p (substring string 0 beg)))) 1 2)
	733	string)
	734	"\n"))))))
	735
	736	(defun magit-process-password-auth-source (key)
	737	"Use `auth-source-search' to get a password.
	738	If found, return the password. Otherwise, return nil.
	739
	740	To use this function add it to the appropriate hook
	741	(add-hook 'magit-process-find-password-functions
	742	'magit-process-password-auth-source)
	743
	744	KEY typically derives from a prompt such as:
	745	Password for 'https://tarsius@bitbucket.org'
	746	in which case it would be the string
	747	tarsius@bitbucket.org
	748	which matches the ~/.authinfo.gpg entry
	749	machine bitbucket.org login tarsius password 12345
	750	or iff that is undefined, for backward compatibility
	751	machine tarsius@bitbucket.org password 12345"
	752	(require 'auth-source)
	753	(and (string-match "\\`\$[^@]+\$@\$[^@]+\$\\'" key)
	754	(let* ((user (match-string 1 key))
	755	(host (match-string 2 key))
	756	(secret
	757	(plist-get
	758	(car (or (auth-source-search :max 1 :host host :user user)
	759	(auth-source-search :max 1 :host key)))
	760	:secret)))
	761	(if (functionp secret)
	762	(funcall secret)
	763	secret))))
	764
	765	(defun magit-process-password-prompt (process string)
	766	"Find a password based on prompt STRING and send it to git.
	767	Use `magit-process-password-prompt-regexps' to find a known
	768	prompt. If and only if one is found, then call functions in
	769	`magit-process-find-password-functions' until one of them returns
	770	the password. If all function return nil, then read the password
	771	from the user."
	772	(when-let ((prompt (magit-process-match-prompt
	773	magit-process-password-prompt-regexps string)))
	774	(process-send-string
	775	process (magit-process-kill-on-abort process
	776	(concat (or (when-let ((key (match-string 99 string)))
	777	(run-hook-with-args-until-success
	778	'magit-process-find-password-functions key))
	779	(read-passwd prompt))
	780	"\n")))))
	781
	782	(defun magit-process-username-prompt (process string)
	783	"Forward username prompts to the user."
	784	(--when-let (magit-process-match-prompt
	785	magit-process-username-prompt-regexps string)
	786	(process-send-string
	787	process (magit-process-kill-on-abort process
	788	(concat (read-string it nil nil (user-login-name)) "\n")))))
	789
	790	(defun magit-process-match-prompt (prompts string)
	791	"Match STRING against PROMPTS and set match data.
	792	Return the matched string suffixed with \": \", if needed."
	793	(when (--any-p (string-match it string) prompts)
	794	(let ((prompt (match-string 0 string)))
	795	(cond ((string-suffix-p ": " prompt) prompt)
	796	((string-suffix-p ":" prompt) (concat prompt " "))
	797	(t (concat prompt ": "))))))
	798
	799	(defun magit--process-coding-system ()
	800	(let ((fro (or magit-git-output-coding-system
	801	(car default-process-coding-system)))
	802	(to (cdr default-process-coding-system)))
	803	(if magit-process-ensure-unix-line-ending
	804	(cons (coding-system-change-eol-conversion fro 'unix)
	805	(coding-system-change-eol-conversion to 'unix))
	806	(cons fro to))))
	807
	808	(defvar magit-credential-hook nil
	809	"Hook run before Git needs credentials.")
	810
	811	(defvar magit-credential-cache-daemon-process nil)
	812
	813	(defun magit-maybe-start-credential-cache-daemon ()
	814	"Maybe start a `git-credential-cache--daemon' process.
	815
	816	If such a process is already running or if the value of option
	817	`magit-credential-cache-daemon-socket' is nil, then do nothing.
	818	Otherwise start the process passing the value of that options
	819	as argument."
	820	(unless (or (not magit-credential-cache-daemon-socket)
	821	(process-live-p magit-credential-cache-daemon-process)
	822	(memq magit-credential-cache-daemon-process
	823	(list-system-processes)))
	824	(setq magit-credential-cache-daemon-process
	825	(or (--first (let* ((attr (process-attributes it))
	826	(comm (cdr (assq 'comm attr)))
	827	(user (cdr (assq 'user attr))))
	828	(and (string= comm "git-credential-cache--daemon")
	829	(string= user user-login-name)))
	830	(list-system-processes))
	831	(condition-case nil
	832	(start-process "git-credential-cache--daemon"
	833	" git-credential-cache--daemon"
	834	magit-git-executable
	835	"credential-cache--daemon"
	836	magit-credential-cache-daemon-socket)
	837	;; Some Git implementations (e.g. Windows) won't have
	838	;; this program; if we fail the first time, stop trying.
	839	((debug error)
	840	(remove-hook 'magit-credential-hook
	841	#'magit-maybe-start-credential-cache-daemon)))))))
	842
	843	(add-hook 'magit-credential-hook #'magit-maybe-start-credential-cache-daemon)
	844
	845	(defun tramp-sh-handle-start-file-process--magit-tramp-process-environment
	846	(fn name buffer program &rest args)
	847	(if magit-tramp-process-environment
	848	(apply fn name buffer
	849	(car magit-tramp-process-environment)
	850	(append (cdr magit-tramp-process-environment)
	851	(cons program args)))
	852	(apply fn name buffer program args)))
	853
	854	(advice-add 'tramp-sh-handle-start-file-process :around
	855	'tramp-sh-handle-start-file-process--magit-tramp-process-environment)
	856
	857	(defun tramp-sh-handle-process-file--magit-tramp-process-environment
	858	(fn program &optional infile destination display &rest args)
	859	(if magit-tramp-process-environment
	860	(apply fn "env" infile destination display
	861	(append magit-tramp-process-environment
	862	(cons program args)))
	863	(apply fn program infile destination display args)))
	864
	865	(advice-add 'tramp-sh-handle-process-file :around
	866	'tramp-sh-handle-process-file--magit-tramp-process-environment)
	867
	868	(defvar magit-mode-line-process-map
	869	(let ((map (make-sparse-keymap)))
	870	(define-key map (kbd "<mode-line> <mouse-1>")
	871	'magit-process-buffer)
	872	map)
	873	"Keymap for `mode-line-process'.")
	874
	875	(defun magit-process-set-mode-line (program args)
	876	"Display the git command (sans arguments) in the mode line."
	877	(when (equal program magit-git-executable)
	878	(setq args (nthcdr (length magit-git-global-arguments) args)))
	879	(let ((str (concat " " (propertize
	880	(concat (file-name-nondirectory program)
	881	(and args (concat " " (car args))))
	882	'mouse-face 'highlight
	883	'keymap magit-mode-line-process-map
	884	'help-echo "mouse-1: Show process buffer"
	885	'face 'magit-mode-line-process))))
	886	(magit-repository-local-set 'mode-line-process str)
	887	(dolist (buf (magit-mode-get-buffers))
	888	(with-current-buffer buf
	889	(setq mode-line-process str)))
	890	(force-mode-line-update t)))
	891
	892	(defun magit-process-set-mode-line-error-status (&optional error str)
	893	"Apply an error face to the string set by `magit-process-set-mode-line'.
	894
	895	If ERROR is supplied, include it in the `mode-line-process' tooltip.
	896
	897	If STR is supplied, it replaces the `mode-line-process' text."
	898	(setq str (or str (magit-repository-local-get 'mode-line-process)))
	899	(when str
	900	(setq error (format "%smouse-1: Show process buffer"
	901	(if (stringp error)
	902	(concat error "\n\n")
	903	"")))
	904	(setq str (concat " " (propertize
	905	(substring-no-properties str 1)
	906	'mouse-face 'highlight
	907	'keymap magit-mode-line-process-map
	908	'help-echo error
	909	'face 'magit-mode-line-process-error)))
	910	(magit-repository-local-set 'mode-line-process str)
	911	(dolist (buf (magit-mode-get-buffers))
	912	(with-current-buffer buf
	913	(setq mode-line-process str)))
	914	(force-mode-line-update t)
	915	;; We remove any error status from the mode line when a magit
	916	;; buffer is refreshed (see `magit-refresh-buffer'), but we must
	917	;; ensure that we ignore any refreshes during the remainder of the
	918	;; current command -- otherwise a newly-set error status would be
	919	;; removed before it was seen. We set a flag which prevents the
	920	;; status from being removed prior to the next command, so that
	921	;; the error status is guaranteed to remain visible until then.
	922	(let ((repokey (magit-repository-local-repository)))
	923	;; The following closure captures the repokey value, and is
	924	;; added to `pre-command-hook'.
	925	(cl-labels ((enable-magit-process-unset-mode-line
	926	() ;; Remove ourself from the hook variable, so
	927	;; that we only run once.
	928	(remove-hook 'pre-command-hook
	929	#'enable-magit-process-unset-mode-line)
	930	;; Clear the inhibit flag for the repository in
	931	;; which we set it.
	932	(magit-repository-local-set
	933	'inhibit-magit-process-unset-mode-line nil repokey)))
	934	;; Set the inhibit flag until the next command is invoked.
	935	(magit-repository-local-set
	936	'inhibit-magit-process-unset-mode-line t repokey)
	937	(add-hook 'pre-command-hook
	938	#'enable-magit-process-unset-mode-line)))))
	939
	940	(defun magit-process-unset-mode-line-error-status ()
	941	"Remove any current error status from the mode line."
	942	(let ((status (or mode-line-process
	943	(magit-repository-local-get 'mode-line-process))))
	944	(when (and status
	945	(eq (get-text-property 1 'face status)
	946	'magit-mode-line-process-error))
	947	(magit-process-unset-mode-line))))
	948
	949	(defun magit-process-unset-mode-line ()
	950	"Remove the git command from the mode line."
	951	(unless (magit-repository-local-get 'inhibit-magit-process-unset-mode-line)
	952	(magit-repository-local-set 'mode-line-process nil)
	953	(dolist (buf (magit-mode-get-buffers))
	954	(with-current-buffer buf (setq mode-line-process nil)))
	955	(force-mode-line-update t)))
	956
	957	(defvar magit-process-error-message-regexps
	958	(list "^\\ERROR\\: Canceled by user$"
	959	"^\$?:error\\\|fatal\\\|git\$: \$.*\$$"
	960	"^\$Cannot rebase:.*\$$"))
	961
	962	(define-error 'magit-git-error "Git error")
	963
	964	(defun magit-process-error-summary (process-buf section)
	965	"A one-line error summary from the given SECTION."
	966	(or (and (buffer-live-p process-buf)
	967	(with-current-buffer process-buf
	968	(and (oref section content)
	969	(save-excursion
	970	(goto-char (oref section end))
	971	(run-hook-wrapped
	972	'magit-process-error-message-regexps
	973	(lambda (re)
	974	(save-excursion
	975	(and (re-search-backward
	976	re (oref section start) t)
	977	(or (match-string-no-properties 1)
	978	(and (not magit-process-raise-error)
	979	'suppressed))))))))))
	980	"Git failed"))
	981
	982	(defun magit-process-error-tooltip (process-buf section)
	983	"Returns the text from SECTION of the PROCESS-BUF buffer.
	984
	985	Limited by `magit-process-error-tooltip-max-lines'."
	986	(and (integerp magit-process-error-tooltip-max-lines)
	987	(> magit-process-error-tooltip-max-lines 0)
	988	(buffer-live-p process-buf)
	989	(with-current-buffer process-buf
	990	(save-excursion
	991	(goto-char (or (oref section content)
	992	(oref section start)))
	993	(buffer-substring-no-properties
	994	(point)
	995	(save-excursion
	996	(forward-line magit-process-error-tooltip-max-lines)
	997	(goto-char
	998	(if (> (point) (oref section end))
	999	(oref section end)
	1000	(point)))
	1001	;; Remove any trailing whitespace.
	1002	(when (re-search-backward "[^[:space:]\n]"
	1003	(oref section start) t)
	1004	(forward-char 1))
	1005	(point)))))))
	1006
	1007	(defvar-local magit-this-error nil)
	1008
	1009	(defvar magit-process-finish-apply-ansi-colors nil)
	1010
	1011	(defun magit-process-finish (arg &optional process-buf command-buf
	1012	default-dir section)
	1013	(unless (integerp arg)
	1014	(setq process-buf (process-buffer arg))
	1015	(setq command-buf (process-get arg 'command-buf))
	1016	(setq default-dir (process-get arg 'default-dir))
	1017	(setq section (process-get arg 'section))
	1018	(setq arg (process-exit-status arg)))
	1019	(when (fboundp 'dired-uncache)
	1020	(dired-uncache default-dir))
	1021	(when (buffer-live-p process-buf)
	1022	(with-current-buffer process-buf
	1023	(let ((inhibit-read-only t)
	1024	(marker (oref section start)))
	1025	(goto-char marker)
	1026	(save-excursion
	1027	(delete-char 3)
	1028	(set-marker-insertion-type marker nil)
	1029	(insert (propertize (format "%3s" arg)
	1030	'magit-section section
	1031	'face (if (= arg 0)
	1032	'magit-process-ok
	1033	'magit-process-ng)))
	1034	(set-marker-insertion-type marker t))
	1035	(when magit-process-finish-apply-ansi-colors
	1036	(ansi-color-apply-on-region (oref section content)
	1037	(oref section end)))
	1038	(if (= (oref section end)
	1039	(+ (line-end-position) 2))
	1040	(save-excursion
	1041	(goto-char (1+ (line-end-position)))
	1042	(delete-char -1)
	1043	(oset section content nil))
	1044	(let ((buf (magit-process-buffer t)))
	1045	(when (and (= arg 0)
	1046	(not (--any-p (eq (window-buffer it) buf)
	1047	(window-list))))
	1048	(magit-section-hide section)))))))
	1049	(if (= arg 0)
	1050	;; Unset the `mode-line-process' value upon success.
	1051	(magit-process-unset-mode-line)
	1052	;; Otherwise process the error.
	1053	(let ((msg (magit-process-error-summary process-buf section)))
	1054	;; Change `mode-line-process' to an error face upon failure.
	1055	(if magit-process-display-mode-line-error
	1056	(magit-process-set-mode-line-error-status
	1057	(or (magit-process-error-tooltip process-buf section)
	1058	msg))
	1059	(magit-process-unset-mode-line))
	1060	;; Either signal the error, or else display the error summary in
	1061	;; the status buffer and with a message in the echo area.
	1062	(cond
	1063	(magit-process-raise-error
	1064	(signal 'magit-git-error (list (format "%s (in %s)" msg default-dir))))
	1065	((not (eq msg 'suppressed))
	1066	(when (buffer-live-p process-buf)
	1067	(with-current-buffer process-buf
	1068	(when-let ((status-buf (magit-mode-get-buffer 'magit-status-mode)))
	1069	(with-current-buffer status-buf
	1070	(setq magit-this-error msg)))))
	1071	(message "%s ... [%s buffer %s for details]" msg
	1072	(if-let ((key (and (buffer-live-p command-buf)
	1073	(with-current-buffer command-buf
	1074	(car (where-is-internal
	1075	'magit-process-buffer))))))
	1076	(format "Hit %s to see" (key-description key))
	1077	"See")
	1078	(buffer-name process-buf))))))
	1079	arg)
	1080
	1081	(defun magit-process-display-buffer (process)
	1082	(when (process-live-p process)
	1083	(let ((buf (process-buffer process)))
	1084	(cond ((not (buffer-live-p buf)))
	1085	((= magit-process-popup-time 0)
	1086	(if (minibufferp)
	1087	(switch-to-buffer-other-window buf)
	1088	(pop-to-buffer buf)))
	1089	((> magit-process-popup-time 0)
	1090	(run-with-timer magit-process-popup-time nil
	1091	(lambda (p)
	1092	(when (eq (process-status p) 'run)
	1093	(let ((buf (process-buffer p)))
	1094	(when (buffer-live-p buf)
	1095	(if (minibufferp)
	1096	(switch-to-buffer-other-window buf)
	1097	(pop-to-buffer buf))))))
	1098	process))))))
	1099
	1100	(defun magit--log-action (summary line list)
	1101	(let (heading lines)
	1102	(if (cdr list)
	1103	(progn (setq heading (funcall summary list))
	1104	(setq lines (mapcar line list)))
	1105	(setq heading (funcall line (car list))))
	1106	(with-current-buffer (magit-process-buffer t)
	1107	(goto-char (1- (point-max)))
	1108	(let ((inhibit-read-only t))
	1109	(magit-insert-section (message)
	1110	(magit-insert-heading (concat " * " heading))
	1111	(when lines
	1112	(dolist (line lines)
	1113	(insert line "\n"))
	1114	(insert "\n"))))
	1115	(let ((inhibit-message t))
	1116	(when heading
	1117	(setq lines (cons heading lines)))
	1118	(message (mapconcat #'identity lines "\n"))))))
	1119
	1120	;;; _
	1121	(provide 'magit-process)
	1122	;;; magit-process.el ends here