diff options
Diffstat (limited to 'lisp/net/tramp.el')
| -rw-r--r-- | lisp/net/tramp.el | 667 |
1 files changed, 394 insertions, 273 deletions
diff --git a/lisp/net/tramp.el b/lisp/net/tramp.el index 4f3249d966a..19cf3334502 100644 --- a/lisp/net/tramp.el +++ b/lisp/net/tramp.el @@ -7,8 +7,8 @@ ;; Maintainer: Michael Albinus <michael.albinus@gmx.de> ;; Keywords: comm, processes ;; Package: tramp -;; Version: 2.4.3 -;; Package-Requires: ((emacs "24.4")) +;; Version: 2.5.0-pre +;; Package-Requires: ((emacs "25.1")) ;; Package-Type: multi ;; URL: https://savannah.gnu.org/projects/tramp @@ -37,7 +37,7 @@ ;; For more detailed instructions, please see the info file. ;; ;; Notes: -;; ----- +;; ------ ;; ;; Also see the todo list at the bottom of this file. ;; @@ -46,6 +46,7 @@ ;; ;; There's a mailing list for this, as well. Its name is: ;; tramp-devel@gnu.org + ;; You can use the Web to subscribe, under the following URL: ;; https://lists.gnu.org/mailman/listinfo/tramp-devel ;; @@ -63,6 +64,7 @@ ;; Pacify byte-compiler. (require 'cl-lib) +(declare-function file-notify-rm-watch "filenotify") (declare-function netrc-parse "netrc") (defvar auto-save-file-name-transforms) @@ -558,7 +560,7 @@ Sometimes the prompt is reported to look like \"login as:\"." ;; Allow also [] style prompts. They can appear only during ;; connection initialization; Tramp redefines the prompt afterwards. (concat "\\(?:^\\|\r\\)" - "[^]#$%>\n]*#?[]#$%>] *\\(\e\\[[0-9;]*[a-zA-Z] *\\)*") + "[^]#$%>\n]*#?[]#$%>] *\\(\e\\[[[:digit:];]*[[:alpha:]] *\\)*") "Regexp to match prompts from remote shell. Normally, Tramp expects you to configure `shell-prompt-pattern' correctly, but sometimes it happens that you are connecting to a @@ -599,7 +601,7 @@ The `sudo' program appears to insert a `^@' character into the prompt." "\\|" "^.*\\(" ;; Here comes a list of regexes, separated by \\| - "Received signal [0-9]+" + "Received signal [[:digit:]]+" "\\).*") "Regexp matching a `login failed' message. The regexp should match at end of buffer." @@ -744,7 +746,7 @@ to be set, depending on VALUE." tramp-postfix-host-format (tramp-build-postfix-host-format) tramp-postfix-host-regexp (tramp-build-postfix-host-regexp) tramp-remote-file-name-spec-regexp - (tramp-build-remote-file-name-spec-regexp) + (tramp-build-remote-file-name-spec-regexp) tramp-file-name-structure (tramp-build-file-name-structure) tramp-file-name-regexp (tramp-build-file-name-regexp) tramp-completion-file-name-regexp @@ -795,9 +797,9 @@ Used in `tramp-make-tramp-file-name'.") Should always start with \"^\". Derived from `tramp-prefix-format'.") (defconst tramp-method-regexp-alist - '((default . "[a-zA-Z0-9-]+") + '((default . "[[:alnum:]-]+") (simplified . "") - (separate . "[a-zA-Z0-9-]*")) + (separate . "[[:alnum:]-]*")) "Alist mapping Tramp syntax to regexps matching methods identifiers.") (defun tramp-build-method-regexp () @@ -841,7 +843,7 @@ Derived from `tramp-postfix-method-format'.") "Regexp matching delimiter between user and domain names. Derived from `tramp-prefix-domain-format'.") -(defconst tramp-domain-regexp "[a-zA-Z0-9_.-]+" +(defconst tramp-domain-regexp "[[:alnum:]_.-]+" "Regexp matching domain names.") (defconst tramp-user-with-domain-regexp @@ -858,7 +860,7 @@ Used in `tramp-make-tramp-file-name'.") "Regexp matching delimiter between user and host names. Derived from `tramp-postfix-user-format'.") -(defconst tramp-host-regexp "[a-zA-Z0-9_.%-]+" +(defconst tramp-host-regexp "[[:alnum:]_.%-]+" "Regexp matching host names.") (defconst tramp-prefix-ipv6-format-alist @@ -886,7 +888,7 @@ Derived from `tramp-prefix-ipv6-format'.") ;; The following regexp is a bit sloppy. But it shall serve our ;; purposes. It covers also IPv4 mapped IPv6 addresses, like in ;; "::ffff:192.168.0.1". -(defconst tramp-ipv6-regexp "\\(?:[a-zA-Z0-9]*:\\)+[a-zA-Z0-9.]+" +(defconst tramp-ipv6-regexp "\\(?:[[:alnum:]]*:\\)+[[:alnum:].]+" "Regexp matching IPv6 addresses.") (defconst tramp-postfix-ipv6-format-alist @@ -918,7 +920,7 @@ Derived from `tramp-postfix-ipv6-format'.") "Regexp matching delimiter between host names and port numbers. Derived from `tramp-prefix-port-format'.") -(defconst tramp-port-regexp "[0-9]+" +(defconst tramp-port-regexp "[[:digit:]]+" "Regexp matching port numbers.") (defconst tramp-host-with-port-regexp @@ -1258,7 +1260,7 @@ calling HANDLER.") ;; data structure. ;; The basic structure for remote file names. We use a list :type, -;; in order to be compatible with Emacs 24 and 25. +;; in order to be compatible with Emacs 25. (cl-defstruct (tramp-file-name (:type list) :named) method user domain host port localname hop) @@ -1306,9 +1308,10 @@ entry does not exist, return nil." ;; We use the cached property. (tramp-get-connection-property vec hash-entry nil) ;; Use the static value from `tramp-methods'. - (let ((methods-entry - (assoc param (assoc (tramp-file-name-method vec) tramp-methods)))) - (when methods-entry (cadr methods-entry)))))) + (when-let ((methods-entry + (assoc + param (assoc (tramp-file-name-method vec) tramp-methods)))) + (cadr methods-entry))))) ;; The localname can be quoted with "/:". Extract this. (defun tramp-file-name-unquote-localname (vec) @@ -1347,6 +1350,11 @@ of `process-file', `start-file-process', or `shell-command'." (match-string (nth 4 tramp-file-name-structure) name)) (tramp-compat-file-local-name name))) +;; The localname can be quoted with "/:". Extract this. +(defun tramp-unquote-file-local-name (name) + "Return unquoted localname of NAME." + (tramp-compat-file-name-unquote (tramp-file-local-name name))) + (defun tramp-find-method (method user host) "Return the right method string to use depending on USER and HOST. This is METHOD, if non-nil. Otherwise, do a lookup in @@ -1363,8 +1371,8 @@ This is METHOD, if non-nil. Otherwise, do a lookup in (setq item (pop choices)) (when (and (string-match-p (or (nth 0 item) "") (or host "")) (string-match-p (or (nth 1 item) "") (or user ""))) - (setq lmethod (nth 2 item)) - (setq choices nil))) + (setq lmethod (nth 2 item) + choices nil))) lmethod) tramp-default-method))) ;; We must mark, whether a default value has been used. @@ -1384,8 +1392,8 @@ This is USER, if non-nil. Otherwise, do a lookup in (setq item (pop choices)) (when (and (string-match-p (or (nth 0 item) "") (or method "")) (string-match-p (or (nth 1 item) "") (or host ""))) - (setq luser (nth 2 item)) - (setq choices nil))) + (setq luser (nth 2 item) + choices nil))) luser) tramp-default-user))) ;; We must mark, whether a default value has been used. @@ -1405,8 +1413,8 @@ This is HOST, if non-nil. Otherwise, do a lookup in (setq item (pop choices)) (when (and (string-match-p (or (nth 0 item) "") (or method "")) (string-match-p (or (nth 1 item) "") (or user ""))) - (setq lhost (nth 2 item)) - (setq choices nil))) + (setq lhost (nth 2 item) + choices nil))) lhost) tramp-default-host))) ;; We must mark, whether a default value has been used. @@ -1468,7 +1476,7 @@ default values are used." :method method :user user :domain domain :host host :port port :localname localname :hop hop)) ;; The method must be known. - (unless (or nodefault (tramp-completion-mode-p) + (unless (or nodefault non-essential (string-equal method tramp-default-method-marker) (assoc method tramp-methods)) (tramp-user-error @@ -1592,7 +1600,7 @@ necessary only. This function will be used in file name completion." tramp-prefix-ipv6-format host tramp-postfix-ipv6-format) host) tramp-postfix-host-format)) - (when localname localname))) + localname)) (defun tramp-get-buffer (vec &optional dont-create) "Get the connection buffer to be used for VEC. @@ -1625,6 +1633,15 @@ from the default one." (or (tramp-get-connection-property vec "process-name" nil) (tramp-buffer-name vec))) +(defun tramp-get-process (vec-or-proc) + "Get the default connection process to be used for VEC-OR-PROC. +Return `tramp-cache-undefined' in case it doesn't exist." + (or (and (tramp-file-name-p vec-or-proc) + (get-buffer-process (tramp-buffer-name vec-or-proc))) + (and (processp vec-or-proc) + (tramp-get-process (process-get vec-or-proc 'vector))) + tramp-cache-undefined)) + (defun tramp-get-connection-process (vec) "Get the connection process to be used for VEC. In case a second asynchronous communication has been started, it is different @@ -1648,7 +1665,7 @@ version, the function does nothing." "Set connection-local variables in the current buffer. If connection-local variables are not supported by this Emacs version, the function does nothing." - (when (file-remote-p default-directory) + (when (tramp-tramp-file-p default-directory) ;; `hack-connection-local-variables-apply' exists since Emacs 26.1. (tramp-compat-funcall 'hack-connection-local-variables-apply @@ -1667,11 +1684,10 @@ version, the function does nothing." (format "*debug tramp/%s %s*" method host-port)))) (defconst tramp-debug-outline-regexp - (eval-when-compile - (concat - "[0-9]+:[0-9]+:[0-9]+\\.[0-9]+ " ;; Timestamp. - "\\(?:\\(#<thread .+>\\) \\)?" ;; Thread. - "[a-z0-9-]+ (\\([0-9]+\\)) #")) ;; Function name, verbosity. + (concat + "[[:digit:]]+:[[:digit:]]+:[[:digit:]]+\\.[[:digit:]]+ " ;; Timestamp. + "\\(?:\\(#<thread .+>\\) \\)?" ;; Thread. + "[[:alnum:]-]+ (\\([[:digit:]]+\\)) #") ;; Function name, verbosity. "Used for highlighting Tramp debug buffers in `outline-mode'.") (defconst tramp-debug-font-lock-keywords @@ -1744,29 +1760,10 @@ ARGUMENTS to actually emit the message (if applicable)." (setq btf (nth 1 (backtrace-frame btn))) (if (not btf) (setq fn "") - (when (symbolp btf) - (setq fn (symbol-name btf)) - (unless - (and - (string-match-p "^tramp" fn) - (not - (string-match-p - (eval-when-compile - (concat - "^" - (regexp-opt - '("tramp-backtrace" - "tramp-compat-funcall" - "tramp-debug-message" - "tramp-error" - "tramp-error-with-buffer" - "tramp-message" - "tramp-signal-hook-function" - "tramp-user-error") - t) - "$")) - fn))) - (setq fn nil))) + (and (symbolp btf) (setq fn (symbol-name btf)) + (or (not (string-match-p "^tramp" fn)) + (get btf 'tramp-suppress-trace)) + (setq fn nil)) (setq btn (1+ btn)))) ;; The following code inserts filename and line number. Should ;; be inactive by default, because it is time consuming. @@ -1781,11 +1778,11 @@ ARGUMENTS to actually emit the message (if applicable)." ;; The message. (insert (apply #'format-message fmt-string arguments)))) -(defvar tramp-message-show-message (null noninteractive) - "Show Tramp message in the minibuffer. -This variable is used to suppress progress reporter output, and -to disable messages from `tramp-error'. Those messages are -visible anyway, because an error is raised.") +(put #'tramp-debug-message 'tramp-suppress-trace t) + +(defvar tramp-inhibit-progress-reporter nil + "Show Tramp progress reporter in the minibuffer. +This variable is used to disable concurrent progress reporter messages.") (defsubst tramp-message (vec-or-proc level fmt-string &rest arguments) "Emit a message depending on verbosity level. @@ -1802,8 +1799,9 @@ control string and the remaining ARGUMENTS to actually emit the message (if applicable)." (ignore-errors (when (<= level tramp-verbose) - ;; Display only when there is a minimum level. - (when (and tramp-message-show-message (<= level 3)) + ;; Display only when there is a minimum level, and the progress + ;; reporter doesn't suppress further messages. + (when (and (<= level 3) (null tramp-inhibit-progress-reporter)) (apply #'message (concat (cond @@ -1835,6 +1833,8 @@ applicable)." (concat (format "(%d) # " level) fmt-string) arguments)))))) +(put #'tramp-message 'tramp-suppress-trace t) + (defsubst tramp-backtrace (&optional vec-or-proc) "Dump a backtrace into the debug buffer. If VEC-OR-PROC is nil, the buffer *debug tramp* is used. This @@ -1845,13 +1845,16 @@ function is meant for debugging purposes." vec-or-proc 10 "\n%s" (with-output-to-string (backtrace))) (with-output-to-temp-buffer "*debug tramp*" (backtrace))))) +(put #'tramp-backtrace 'tramp-suppress-trace t) + (defsubst tramp-error (vec-or-proc signal fmt-string &rest arguments) "Emit an error. VEC-OR-PROC identifies the connection to use, SIGNAL is the signal identifier to be raised, remaining arguments passed to `tramp-message'. Finally, signal SIGNAL is raised with FMT-STRING and ARGUMENTS." - (let (tramp-message-show-message signal-hook-function) + (let ((inhibit-message t) + signal-hook-function) (tramp-backtrace vec-or-proc) (unless arguments ;; FMT-STRING could be just a file name, as in @@ -1869,6 +1872,8 @@ FMT-STRING and ARGUMENTS." (signal signal (list (substring-no-properties (apply #'format-message fmt-string arguments)))))) +(put #'tramp-error 'tramp-suppress-trace t) + (defsubst tramp-error-with-buffer (buf vec-or-proc signal fmt-string &rest arguments) "Emit an error, and show BUF. @@ -1886,13 +1891,13 @@ an input event arrives. The other arguments are passed to `tramp-error'." (apply #'tramp-error vec-or-proc signal fmt-string arguments) ;; Save exit. (when (and buf - tramp-message-show-message (not (zerop tramp-verbose)) ;; Do not show when flagged from outside. - (not (tramp-completion-mode-p)) + (not non-essential) ;; Show only when Emacs has started already. (current-message)) - (let ((enable-recursive-minibuffers t)) + (let ((enable-recursive-minibuffers t) + inhibit-message) ;; `tramp-error' does not show messages. So we must do it ;; ourselves. (apply #'message fmt-string arguments) @@ -1904,19 +1909,21 @@ an input event arrives. The other arguments are passed to `tramp-error'." (when (tramp-file-name-equal-p vec (car tramp-current-connection)) (setcdr tramp-current-connection (current-time))))))) +(put #'tramp-error-with-buffer 'tramp-suppress-trace t) + ;; We must make it a defun, because it is used earlier already. (defun tramp-user-error (vec-or-proc fmt-string &rest arguments) "Signal a user error (or \"pilot error\")." (unwind-protect (apply #'tramp-error vec-or-proc 'user-error fmt-string arguments) ;; Save exit. - (when (and tramp-message-show-message - (not (zerop tramp-verbose)) + (when (and (not (zerop tramp-verbose)) ;; Do not show when flagged from outside. - (not (tramp-completion-mode-p)) + (not non-essential) ;; Show only when Emacs has started already. (current-message)) - (let ((enable-recursive-minibuffers t)) + (let ((enable-recursive-minibuffers t) + inhibit-message) ;; `tramp-error' does not show messages. So we must do it ourselves. (apply #'message fmt-string arguments) (discard-input) @@ -1926,18 +1933,21 @@ an input event arrives. The other arguments are passed to `tramp-error'." (tramp-file-name-equal-p vec-or-proc (car tramp-current-connection)) (setcdr tramp-current-connection (current-time))))))) +(put #'tramp-user-error 'tramp-suppress-trace t) + (defmacro tramp-with-demoted-errors (vec-or-proc format &rest body) "Execute BODY while redirecting the error message to `tramp-message'. BODY is executed like wrapped by `with-demoted-errors'. FORMAT is a format-string containing a %-sequence meaning to substitute the resulting error message." - (declare (debug (symbolp body)) - (indent 2)) + (declare (indent 2) (debug (symbolp form body))) (let ((err (make-symbol "err"))) `(condition-case-unless-debug ,err (progn ,@body) (error (tramp-message ,vec-or-proc 3 ,format ,err) nil)))) +(put #'tramp-with-demoted-errors 'tramp-suppress-trace t) + ;; This function provides traces in case of errors not triggered by ;; Tramp functions. (defun tramp-signal-hook-function (error-symbol data) @@ -1949,6 +1959,8 @@ the resulting error message." (car tramp-current-connection) error-symbol "%s" (mapconcat (lambda (x) (format "%s" x)) data " ")))) +(put #'tramp-signal-hook-function 'tramp-suppress-trace t) + (defmacro with-parsed-tramp-file-name (filename var &rest body) "Parse a Tramp filename and make components available in the body. @@ -1965,12 +1977,14 @@ Remaining args are Lisp expressions to be evaluated (inside an implicit If VAR is nil, then we bind `v' to the structure and `method', `user', `domain', `host', `port', `localname', `hop' to the components." + (declare (indent 2) (debug (form symbolp body))) (let ((bindings - (mapcar (lambda (elem) - `(,(if var (intern (format "%s-%s" var elem)) elem) - (,(intern (format "tramp-file-name-%s" elem)) - ,(or var 'v)))) - `,(tramp-compat-tramp-file-name-slots)))) + (mapcar + (lambda (elem) + `(,(if var (intern (format "%s-%s" var elem)) elem) + (,(intern (format "tramp-file-name-%s" elem)) + ,(or var 'v)))) + (cdr (mapcar #'car (cl-struct-slot-info 'tramp-file-name)))))) `(let* ((,(or var 'v) (tramp-dissect-file-name ,filename)) ,@bindings) ;; We don't know which of those vars will be used, so we bind them all, @@ -1979,8 +1993,6 @@ If VAR is nil, then we bind `v' to the structure and `method', `user', (ignore ,@(mapcar #'car bindings)) ,@body))) -(put 'with-parsed-tramp-file-name 'lisp-indent-function 2) -(put 'with-parsed-tramp-file-name 'edebug-form-spec '(form symbolp body)) (font-lock-add-keywords 'emacs-lisp-mode '("\\<with-parsed-tramp-file-name\\>")) (defun tramp-progress-reporter-update (reporter &optional value suffix) @@ -1991,25 +2003,30 @@ If VAR is nil, then we bind `v' to the structure and `method', `user', (tramp-compat-progress-reporter-update reporter value suffix)))) (defmacro with-tramp-progress-reporter (vec level message &rest body) - "Execute BODY, spinning a progress reporter with MESSAGE. + "Execute BODY, spinning a progress reporter with MESSAGE in interactive mode. If LEVEL does not fit for visible messages, there are only traces without a visible progress reporter." (declare (indent 3) (debug t)) - `(progn + `(if (or noninteractive inhibit-message) + (progn ,@body) (tramp-message ,vec ,level "%s..." ,message) (let ((cookie "failed") (tm ;; We start a pulsing progress reporter after 3 seconds. - (when (and tramp-message-show-message - ;; Display only when there is a minimum level. - (<= ,level (min tramp-verbose 3))) - (let ((pr (make-progress-reporter ,message nil nil))) - (when pr - (run-at-time - 3 0.1 #'tramp-progress-reporter-update pr)))))) + ;; Start only when there is no other progress reporter + ;; running, and when there is a minimum level. + (when-let ((pr (and (null tramp-inhibit-progress-reporter) + (<= ,level (min tramp-verbose 3)) + (make-progress-reporter ,message nil nil)))) + (run-at-time 3 0.1 #'tramp-progress-reporter-update pr)))) (unwind-protect ;; Execute the body. - (prog1 (progn ,@body) (setq cookie "done")) + (prog1 + ;; Suppress concurrent progress reporter messages. + (let ((tramp-inhibit-progress-reporter + (or tramp-inhibit-progress-reporter tm))) + ,@body) + (setq cookie "done")) ;; Stop progress reporter. (if tm (cancel-timer tm)) (tramp-message ,vec ,level "%s...%s" ,message cookie))))) @@ -2020,6 +2037,7 @@ without a visible progress reporter." (defmacro with-tramp-file-property (vec file property &rest body) "Check in Tramp cache for PROPERTY, otherwise execute BODY and set cache. FILE must be a local file name on a connection identified via VEC." + (declare (indent 3) (debug t)) `(if (file-name-absolute-p ,file) (let ((value (tramp-get-file-property ,vec ,file ,property 'undef))) (when (eq value 'undef) @@ -2031,12 +2049,11 @@ FILE must be a local file name on a connection identified via VEC." value) ,@body)) -(put 'with-tramp-file-property 'lisp-indent-function 3) -(put 'with-tramp-file-property 'edebug-form-spec t) (font-lock-add-keywords 'emacs-lisp-mode '("\\<with-tramp-file-property\\>")) (defmacro with-tramp-connection-property (key property &rest body) "Check in Tramp for property PROPERTY, otherwise execute BODY and set." + (declare (indent 2) (debug t)) `(let ((value (tramp-get-connection-property ,key ,property 'undef))) (when (eq value 'undef) ;; We cannot pass ,@body as parameter to @@ -2046,8 +2063,6 @@ FILE must be a local file name on a connection identified via VEC." (tramp-set-connection-property ,key ,property value)) value)) -(put 'with-tramp-connection-property 'lisp-indent-function 2) -(put 'with-tramp-connection-property 'edebug-form-spec t) (font-lock-add-keywords 'emacs-lisp-mode '("\\<with-tramp-connection-property\\>")) @@ -2060,12 +2075,15 @@ letter into the file name. This function removes it." (save-match-data (let ((quoted (tramp-compat-file-name-quoted-p name 'top)) (result (tramp-compat-file-name-unquote name 'top))) - (setq result (if (string-match "\\`[a-zA-Z]:/" result) + (setq result (if (string-match "\\`[[:alpha:]]:/" result) (replace-match "/" nil t result) result)) (if quoted (tramp-compat-file-name-quote result 'top) result)))) ;;; Config Manipulation Functions: +(defconst tramp-dns-sd-service-regexp "^_[-[:alnum:]]+\\._tcp$" + "DNS-SD service regexp.") + (defun tramp-set-completion-function (method function-list) "Set the list of completion functions for METHOD. FUNCTION-LIST is a list of entries of the form (FUNCTION FILE). @@ -2098,10 +2116,10 @@ Example: (zerop (tramp-call-process v "reg" nil nil nil "query" (nth 1 (car v)))))) - ;; Zeroconf service type. + ;; DNS-SD service type. ((string-match-p - "^_[[:alpha:]]+\\._[[:alpha:]]+$" (nth 1 (car v)))) - ;; Configuration file. + tramp-dns-sd-service-regexp (nth 1 (car v)))) + ;; Configuration file or empty string. (t (file-exists-p (nth 1 (car v)))))) (setq r (delete (car v) r))) (setq v (cdr v))) @@ -2139,11 +2157,13 @@ For definition of that list see `tramp-set-completion-function'." (defvar tramp-devices 0 "Keeps virtual device numbers.") -(defun tramp-default-file-modes (filename) +(defun tramp-default-file-modes (filename &optional flag) "Return file modes of FILENAME as integer. -If the file modes of FILENAME cannot be determined, return the -value of `default-file-modes', without execute permissions." - (or (file-modes filename) +If optional FLAG is ‘nofollow’, do not follow FILENAME if it is a +symbolic link. If the file modes of FILENAME cannot be +determined, return the value of `default-file-modes', without +execute permissions." + (or (tramp-compat-file-modes filename flag) (logand (default-file-modes) #o0666))) (defun tramp-replace-environment-variables (filename) @@ -2174,6 +2194,7 @@ arguments to pass to the OPERATION." tramp-vc-file-name-handler tramp-completion-file-name-handler tramp-archive-file-name-handler + tramp-crypt-file-name-handler cygwin-mount-name-hook-function cygwin-mount-map-drive-hook-function . @@ -2239,7 +2260,7 @@ Must be handled by the callers." file-newer-than-file-p rename-file)) (cond ((tramp-tramp-file-p (nth 0 args)) (nth 0 args)) - ((tramp-tramp-file-p (nth 1 args)) (nth 1 args)) + ((file-name-absolute-p (nth 1 args)) (nth 1 args)) (t default-directory))) ;; FILE DIRECTORY resp FILE1 FILE2. ((eq operation 'expand-file-name) @@ -2267,13 +2288,13 @@ Must be handled by the callers." exec-path make-process)) default-directory) ;; PROC. - ((member operation - '(file-notify-rm-watch - ;; Emacs 25+ only. - file-notify-valid-p)) + ((member operation '(file-notify-rm-watch file-notify-valid-p)) (when (processp (nth 0 args)) (with-current-buffer (process-buffer (nth 0 args)) default-directory))) + ;; VEC. + ((member operation '(tramp-get-remote-gid tramp-get-remote-uid)) + (tramp-make-tramp-file-name (nth 0 args))) ;; Unknown file primitive. (t (error "Unknown file I/O primitive: %s" operation)))) @@ -2390,7 +2411,7 @@ Fall back to normal file name handler if no Tramp file name handler exists." (cons operation args)) (tramp-run-real-handler operation args)) ((eq result 'suppress) - (let (tramp-message-show-message) + (let ((inhibit-message t)) (tramp-message v 1 "Suppress received in operation %s" (cons operation args)) @@ -2419,18 +2440,21 @@ Fall back to normal file name handler if no Tramp file name handler exists." (defun tramp-completion-file-name-handler (operation &rest args) "Invoke Tramp file name completion handler for OPERATION and ARGS. Falls back to normal file name handler if no Tramp file name handler exists." - (let ((fn (assoc operation tramp-completion-file-name-handler-alist))) - (if (and fn tramp-mode) - (save-match-data (apply (cdr fn) args)) - (tramp-run-real-handler operation args)))) + (if-let + ((fn (and tramp-mode + (assoc operation tramp-completion-file-name-handler-alist)))) + (save-match-data (apply (cdr fn) args)) + (tramp-run-real-handler operation args))) ;;;###autoload (progn (defun tramp-autoload-file-name-handler (operation &rest args) "Load Tramp file name handler, and perform OPERATION." (tramp-unload-file-name-handlers) - (if tramp-mode - (let ((default-directory temporary-file-directory)) - (load "tramp" 'noerror 'nomessage))) + (when tramp-mode + ;; We cannot use `tramp-compat-temporary-file-directory' here due + ;; to autoload. + (let ((default-directory temporary-file-directory)) + (load "tramp" 'noerror 'nomessage))) (apply operation args))) ;; `tramp-autoload-file-name-handler' must be registered before @@ -2442,7 +2466,7 @@ Falls back to normal file name handler if no Tramp file name handler exists." (add-to-list 'file-name-handler-alist (cons tramp-autoload-file-name-regexp 'tramp-autoload-file-name-handler)) - (put 'tramp-autoload-file-name-handler 'safe-magic t))) + (put #'tramp-autoload-file-name-handler 'safe-magic t))) ;;;###autoload (tramp-register-autoload-file-name-handlers) @@ -2478,34 +2502,36 @@ remote file names." (tramp-unload-file-name-handlers) ;; Add the handlers. We do not add anything to the `operations' - ;; property of `tramp-file-name-handler' and - ;; `tramp-archive-file-name-handler', this shall be done by the + ;; property of `tramp-file-name-handler', + ;; `tramp-archive-file-name-handler' and + ;; `tramp-crypt-file-name-handler', this shall be done by the ;; respective foreign handlers. (add-to-list 'file-name-handler-alist (cons tramp-file-name-regexp #'tramp-file-name-handler)) - (put 'tramp-file-name-handler 'safe-magic t) + (put #'tramp-file-name-handler 'safe-magic t) + + (tramp-register-crypt-file-name-handler) (add-to-list 'file-name-handler-alist (cons tramp-completion-file-name-regexp #'tramp-completion-file-name-handler)) - (put 'tramp-completion-file-name-handler 'safe-magic t) + (put #'tramp-completion-file-name-handler 'safe-magic t) ;; Mark `operations' the handler is responsible for. - (put 'tramp-completion-file-name-handler 'operations + (put #'tramp-completion-file-name-handler 'operations (mapcar #'car tramp-completion-file-name-handler-alist)) (when (bound-and-true-p tramp-archive-enabled) (add-to-list 'file-name-handler-alist (cons tramp-archive-file-name-regexp #'tramp-archive-file-name-handler)) - (put 'tramp-archive-file-name-handler 'safe-magic t)) + (put #'tramp-archive-file-name-handler 'safe-magic t)) ;; If jka-compr or epa-file are already loaded, move them to the ;; front of `file-name-handler-alist'. (dolist (fnh '(epa-file-handler jka-compr-handler)) - (let ((entry (rassoc fnh file-name-handler-alist))) - (when entry - (setq file-name-handler-alist - (cons entry (delete entry file-name-handler-alist))))))) + (when-let ((entry (rassoc fnh file-name-handler-alist))) + (setq file-name-handler-alist + (cons entry (delete entry file-name-handler-alist)))))) (tramp--with-startup (tramp-register-file-name-handlers)) @@ -2517,7 +2543,7 @@ Add operations defined in `HANDLER-alist' to `tramp-file-name-handler'." (add-to-list 'tramp-foreign-file-name-handler-alist `(,func . ,handler) append) ;; Mark `operations' the handler is responsible for. - (put 'tramp-file-name-handler + (put #'tramp-file-name-handler 'operations (delete-dups (append @@ -2558,24 +2584,11 @@ Add operations defined in `HANDLER-alist' to `tramp-file-name-handler'." ;;; File name handler functions for completion mode: -;;;###autoload -(defvar tramp-completion-mode nil - "If non-nil, external packages signal that they are in file name completion.") -(make-obsolete-variable 'tramp-completion-mode 'non-essential "26.1") - -(defun tramp-completion-mode-p () - "Check, whether method / user name / host name completion is active." - (or - ;; Signal from outside. - non-essential - ;; This variable has been obsoleted in Emacs 26. - tramp-completion-mode)) - (defun tramp-connectable-p (vec-or-filename) "Check, whether it is possible to connect the remote host w/o side-effects. This is true, if either the remote host is already connected, or if we are not in completion mode." - (let (tramp-verbose + (let ((tramp-verbose 0) (vec (cond ((tramp-file-name-p vec-or-filename) vec-or-filename) @@ -2585,7 +2598,7 @@ not in completion mode." ;; `tramp-buffer-name'; otherwise `start-file-process' ;; wouldn't run ever when `non-essential' is non-nil. (and vec (process-live-p (get-process (tramp-buffer-name vec)))) - (not (tramp-completion-mode-p))))) + (not non-essential)))) ;; Method, host name and user name completion. ;; `tramp-completion-dissect-file-name' returns a list of @@ -2864,7 +2877,7 @@ User is always nil." (let ((default-directory (tramp-compat-temporary-file-directory))) (when (file-readable-p filename) (with-temp-buffer - (insert-file-contents filename) + (insert-file-contents-literally filename) (goto-char (point-min)) (cl-loop while (not (eobp)) collect (funcall function)))))) @@ -2876,7 +2889,7 @@ Either user or host may be nil." (defun tramp-parse-rhosts-group () "Return a (user host) tuple allowed to access. Either user or host may be nil." - (let ((result) + (let (result (regexp (concat "^\\(" tramp-host-regexp "\\)" @@ -2926,7 +2939,7 @@ User is always nil." "Return a list of (user host) tuples allowed to access. User is always nil." (tramp-parse-shostkeys-sknownhosts - dirname (concat "^key_[0-9]+_\\(" tramp-host-regexp "\\)\\.pub$"))) + dirname (concat "^key_[[:digit:]]+_\\(" tramp-host-regexp "\\)\\.pub$"))) (defun tramp-parse-sknownhosts (dirname) "Return a list of (user host) tuples allowed to access. @@ -2961,7 +2974,7 @@ Host is always \"localhost\"." (defun tramp-parse-passwd-group () "Return a (user host) tuple allowed to access. Host is always \"localhost\"." - (let ((result) + (let (result (regexp (concat "^\\(" tramp-user-regexp "\\):"))) (when (re-search-forward regexp (point-at-eol) t) (setq result (list (match-string 1) "localhost"))) @@ -2983,7 +2996,7 @@ Host is always \"localhost\"." (defun tramp-parse-etc-group-group () "Return a (group host) tuple allowed to access. Host is always \"localhost\"." - (let ((result) + (let (result (split (split-string (buffer-substring (point) (point-at-eol)) ":"))) (when (member (user-login-name) (split-string (nth 3 split) "," 'omit)) (setq result (list (nth 0 split) "localhost"))) @@ -3020,7 +3033,7 @@ User is always nil." (defun tramp-parse-putty-group (registry) "Return a (user host) tuple allowed to access. User is always nil." - (let ((result) + (let (result (regexp (concat (regexp-quote registry) "\\\\\\(.+\\)"))) (when (re-search-forward regexp (point-at-eol) t) (setq result (list nil (match-string 1)))) @@ -3199,12 +3212,13 @@ User is always nil." (copy-file filename tmpfile 'ok-if-already-exists 'keep-time) tmpfile))) -(defun tramp-handle-file-modes (filename) +(defun tramp-handle-file-modes (filename &optional flag) "Like `file-modes' for Tramp files." - ;; Starting with Emacs 25.1, `when-let' can be used. - (let ((attrs (file-attributes (or (file-truename filename) filename)))) - (when attrs - (tramp-mode-string-to-int (tramp-compat-file-attribute-modes attrs))))) + (when-let ((attrs (file-attributes filename)) + (mode-string (tramp-compat-file-attribute-modes attrs))) + (if (and (not (eq flag 'nofollow)) (eq ?l (aref mode-string 0))) + (file-modes (file-truename filename)) + (tramp-mode-string-to-int mode-string)))) ;; Localname manipulation functions that grok Tramp localnames... (defun tramp-handle-file-name-as-directory (file) @@ -3242,12 +3256,13 @@ User is always nil." (let ((candidate (tramp-compat-file-name-unquote (directory-file-name filename))) + case-fold-search tmpfile) ;; Check, whether we find an existing file with ;; lower case letters. This avoids us to create a ;; temporary file. (while (and (string-match-p - "[a-z]" (tramp-compat-file-local-name candidate)) + "[[:lower:]]" (tramp-file-local-name candidate)) (not (file-exists-p candidate))) (setq candidate (directory-file-name @@ -3256,9 +3271,8 @@ User is always nil." ;; for comparison. `make-nearby-temp-file' is added ;; to Emacs 26+ like `file-name-case-insensitive-p', ;; so there is no compatibility problem calling it. - (unless - (string-match-p - "[a-z]" (tramp-compat-file-local-name candidate)) + (unless (string-match-p + "[[:lower:]]" (tramp-file-local-name candidate)) (setq tmpfile (let ((default-directory (file-name-directory filename))) @@ -3271,7 +3285,7 @@ User is always nil." (file-exists-p (concat (file-remote-p candidate) - (upcase (tramp-compat-file-local-name candidate)))) + (upcase (tramp-file-local-name candidate)))) ;; Cleanup. (when tmpfile (delete-file tmpfile))))))))))) @@ -3323,21 +3337,18 @@ User is always nil." (cond ((not (file-exists-p file1)) nil) ((not (file-exists-p file2)) t) - (t (time-less-p (tramp-compat-file-attribute-modification-time - (file-attributes file2)) - (tramp-compat-file-attribute-modification-time - (file-attributes file1)))))) + (t (time-less-p + (tramp-compat-file-attribute-modification-time (file-attributes file2)) + (tramp-compat-file-attribute-modification-time + (file-attributes file1)))))) (defun tramp-handle-file-regular-p (filename) "Like `file-regular-p' for Tramp files." (and (file-exists-p filename) ;; Sometimes, `file-attributes' does not return a proper value ;; even if `file-exists-p' does. - (ignore-errors - (eq ?- - (aref - (tramp-compat-file-attribute-modes (file-attributes filename)) - 0))))) + (when-let ((attr (file-attributes filename))) + (eq ?- (aref (tramp-compat-file-attribute-modes attr) 0))))) (defun tramp-handle-file-remote-p (filename &optional identification connected) "Like `file-remote-p' for Tramp files." @@ -3376,8 +3387,7 @@ User is always nil." "Like `file-truename' for Tramp files." ;; Preserve trailing "/". (funcall - (if (tramp-compat-directory-name-p filename) - #'file-name-as-directory #'identity) + (if (directory-name-p filename) #'file-name-as-directory #'identity) ;; Quote properly. (funcall (if (tramp-compat-file-name-quoted-p filename) @@ -3389,6 +3399,8 @@ User is always nil." ;; something is wrong; otherwise they might think that Emacs ;; is hung. Of course, correctness has to come first. (numchase-limit 20) + ;; Unquoting could enable encryption. + tramp-crypt-enabled symlink-target) (with-parsed-tramp-file-name result v1 ;; We cache only the localname. @@ -3413,7 +3425,7 @@ User is always nil." (tramp-error v1 'file-error "Maximum number (%d) of symlinks exceeded" numchase-limit))) - (tramp-compat-file-local-name (directory-file-name result))))))))) + (tramp-file-local-name (directory-file-name result))))))))) (defun tramp-handle-file-writable-p (filename) "Like `file-writable-p' for Tramp files." @@ -3448,7 +3460,7 @@ User is always nil." "Like `insert-directory' for Tramp files." (unless switches (setq switches "")) ;; Mark trailing "/". - (when (and (tramp-compat-directory-name-p filename) + (when (and (directory-name-p filename) (not full-directory-p)) (setq switches (concat switches "F"))) ;; Check, whether directory is accessible. @@ -3458,7 +3470,7 @@ User is always nil." (with-tramp-progress-reporter v 0 (format "Opening directory %s" filename) (let (ls-lisp-use-insert-directory-program start) ;; Silence byte compiler. - ls-lisp-use-insert-directory-program + (ignore ls-lisp-use-insert-directory-program) (tramp-run-real-handler #'insert-directory (list filename switches wildcard full-directory-p)) @@ -3509,6 +3521,9 @@ User is always nil." ;; copy this part. This works only for the shell file ;; name handlers. (when (and (or beg end) + ;; Direct actions aren't possible for + ;; crypted directories. + (null tramp-crypt-enabled) (tramp-get-method-parameter v 'tramp-login-program)) (setq remote-copy (tramp-make-tramp-temp-file v)) @@ -3582,8 +3597,8 @@ User is always nil." ;; Save exit. (progn (when visit - (setq buffer-file-name filename) - (setq buffer-read-only (not (file-writable-p filename))) + (setq buffer-file-name filename + buffer-read-only (not (file-writable-p filename))) (set-visited-file-modtime) (set-buffer-modified-p nil)) (when (and (stringp local-copy) @@ -3617,7 +3632,8 @@ User is always nil." v tramp-file-missing "Cannot load nonexistent file `%s'" file)) (if (not (file-exists-p file)) nil - (let ((tramp-message-show-message (not nomessage))) + (let ((signal-hook-function (unless noerror signal-hook-function)) + (inhibit-message (or inhibit-message nomessage))) (with-tramp-progress-reporter v 0 (format "Loading %s" file) (let ((local-copy (file-local-copy file))) (unwind-protect @@ -3645,10 +3661,16 @@ support symbolic links." (let* ((asynchronous (string-match-p "[ \t]*&[ \t]*\\'" command)) (command (substring command 0 asynchronous)) current-buffer-p + (output-buffer-p output-buffer) (output-buffer (cond - ((bufferp output-buffer) output-buffer) - ((stringp output-buffer) (get-buffer-create output-buffer)) + ((bufferp output-buffer) + (setq current-buffer-p (eq (current-buffer) output-buffer)) + output-buffer) + ((stringp output-buffer) + (setq current-buffer-p + (eq (buffer-name (current-buffer)) output-buffer)) + (get-buffer-create output-buffer)) (output-buffer (setq current-buffer-p t) (current-buffer)) @@ -3660,13 +3682,19 @@ support symbolic links." (cond ((bufferp error-buffer) error-buffer) ((stringp error-buffer) (get-buffer-create error-buffer)))) + (error-file + (and error-buffer + (with-parsed-tramp-file-name default-directory nil + (tramp-make-tramp-file-name + v (tramp-make-tramp-temp-file v))))) (bname (buffer-name output-buffer)) (p (get-buffer-process output-buffer)) + (dir default-directory) buffer) ;; The following code is taken from `shell-command', slightly ;; adapted. Shouldn't it be factored out? - (when p + (when (and (integerp asynchronous) p) (cond ((eq async-shell-command-buffer 'confirm-kill-process) ;; If will kill a process, query first. @@ -3698,22 +3726,25 @@ support symbolic links." (rename-uniquely)) (setq output-buffer (get-buffer-create bname))))) - (setq buffer (if (and (not asynchronous) error-buffer) - (with-parsed-tramp-file-name default-directory nil - (list output-buffer - (tramp-make-tramp-file-name - v (tramp-make-tramp-temp-file v)))) - output-buffer)) - - (if current-buffer-p - (progn - (barf-if-buffer-read-only) - (push-mark nil t)) + (unless output-buffer-p (with-current-buffer output-buffer + (setq default-directory dir))) + + (setq buffer (if error-file (list output-buffer error-file) output-buffer)) + + (with-current-buffer output-buffer + (when current-buffer-p + (barf-if-buffer-read-only) + (push-mark nil t)) + ;; `shell-command-save-pos-or-erase' has been introduced with + ;; Emacs 27.1. + (if (fboundp 'shell-command-save-pos-or-erase) + (tramp-compat-funcall + 'shell-command-save-pos-or-erase current-buffer-p) (setq buffer-read-only nil) (erase-buffer))) - (if (and (not current-buffer-p) (integerp asynchronous)) + (if (integerp asynchronous) (let ((tramp-remote-process-environment ;; `async-shell-command-width' has been introduced with ;; Emacs 27.1. @@ -3726,42 +3757,69 @@ support symbolic links." ;; Run the process. (setq p (start-file-process-shell-command (buffer-name output-buffer) buffer command)) - ;; Display output. - (with-current-buffer output-buffer - (display-buffer output-buffer '(nil (allow-no-window . t))) - (setq mode-line-process '(":%s")) - (shell-mode) - (set-process-sentinel p #'shell-command-sentinel) - (set-process-filter p #'comint-output-filter)))) + ;; Insert error messages if they were separated. + (when error-file + (with-current-buffer error-buffer + (insert-file-contents-literally error-file))) + (if (process-live-p p) + ;; Display output. + (with-current-buffer output-buffer + (setq mode-line-process '(":%s")) + (unless (eq major-mode 'shell-mode) + (shell-mode)) + (set-process-filter p #'comint-output-filter) + (set-process-sentinel p #'shell-command-sentinel) + (when error-file + (add-function + :after (process-sentinel p) + (lambda (_proc _string) + (with-current-buffer error-buffer + (insert-file-contents-literally + error-file nil nil nil 'replace)) + (delete-file error-file)))) + (display-buffer output-buffer '(nil (allow-no-window . t)))) + + (when error-file + (delete-file error-file))))) (prog1 ;; Run the process. (process-file-shell-command command nil buffer nil) ;; Insert error messages if they were separated. - (when (listp buffer) + (when error-file (with-current-buffer error-buffer - (insert-file-contents (cadr buffer))) - (delete-file (cadr buffer))) + (insert-file-contents-literally error-file)) + (delete-file error-file)) (if current-buffer-p ;; This is like exchange-point-and-mark, but doesn't ;; activate the mark. It is cleaner to avoid activation, ;; even though the command loop would deactivate the mark ;; because we inserted text. - (goto-char (prog1 (mark t) - (set-marker (mark-marker) (point) - (current-buffer)))) + (progn + (goto-char (prog1 (mark t) + (set-marker (mark-marker) (point) + (current-buffer)))) + ;; `shell-command-set-point-after-cmd' has been + ;; introduced with Emacs 27.1. + (if (fboundp 'shell-command-set-point-after-cmd) + (tramp-compat-funcall + 'shell-command-set-point-after-cmd))) ;; There's some output, display it. (when (with-current-buffer output-buffer (> (point-max) (point-min))) (display-message-or-buffer output-buffer))))))) (defun tramp-handle-start-file-process (name buffer program &rest args) - "Like `start-file-process' for Tramp files." - ;; `make-process' knows the `:file-handler' argument since Emacs 27.1 only. + "Like `start-file-process' for Tramp files. +BUFFER might be a list, in this case STDERR is separated." + ;; `make-process' knows the `:file-handler' argument since Emacs + ;; 27.1 only. Therefore, we invoke it via `tramp-file-name-handler'. (tramp-file-name-handler 'make-process :name name - :buffer buffer + :buffer (if (consp buffer) (car buffer) buffer) :command (and program (cons program args)) + ;; `shell-command' adds an errfile to `buffer'. + :stderr (when (consp buffer) (cadr buffer)) :noquery nil :file-handler t)) @@ -3862,7 +3920,14 @@ of." (tramp-error v 'file-already-exists filename)) (let ((tmpfile (tramp-compat-make-temp-file filename)) - (modes (save-excursion (tramp-default-file-modes filename)))) + (modes (tramp-default-file-modes + filename (and (eq mustbenew 'excl) 'nofollow))) + (uid (or (tramp-compat-file-attribute-user-id + (file-attributes filename 'integer)) + (tramp-get-remote-uid v 'integer))) + (gid (or (tramp-compat-file-attribute-group-id + (file-attributes filename 'integer)) + (tramp-get-remote-gid v 'integer)))) (when (and append (file-exists-p filename)) (copy-file filename tmpfile 'ok)) ;; The permissions of the temporary file should be set. If @@ -3881,15 +3946,18 @@ of." (error (delete-file tmpfile) (tramp-error - v 'file-error "Couldn't write region to `%s'" filename)))) + v 'file-error "Couldn't write region to `%s'" filename))) - (tramp-flush-file-properties v localname) + (tramp-flush-file-properties v localname) - ;; Set file modification time. - (when (or (eq visit t) (stringp visit)) - (set-visited-file-modtime - (tramp-compat-file-attribute-modification-time - (file-attributes filename)))) + ;; Set file modification time. + (when (or (eq visit t) (stringp visit)) + (set-visited-file-modtime + (tramp-compat-file-attribute-modification-time + (file-attributes filename)))) + + ;; Set the ownership. + (tramp-set-file-uid-gid filename uid gid)) ;; The end. (when (and (null noninteractive) @@ -3943,7 +4011,7 @@ of." "Call `file-notify-rm-watch'." (unless (process-live-p proc) (tramp-message proc 5 "Sentinel called: `%S' `%s'" proc event) - (tramp-compat-funcall 'file-notify-rm-watch proc))) + (file-notify-rm-watch proc))) ;;; Functions for establishing connection: @@ -4044,6 +4112,8 @@ The terminal type can be configured with `tramp-terminal-type'." (defun tramp-action-process-alive (proc _vec) "Check, whether a process has finished." (unless (process-live-p proc) + ;; There might be pending output. + (while (tramp-accept-process-output proc 0)) (throw 'tramp-action 'process-died))) (defun tramp-action-out-of-band (proc vec) @@ -4083,9 +4153,9 @@ See `tramp-process-actions' for the format of ACTIONS." (while (tramp-accept-process-output proc 0)) (setq todo actions) (while todo - (setq item (pop todo)) - (setq pattern (format "\\(%s\\)\\'" (symbol-value (nth 0 item)))) - (setq action (nth 1 item)) + (setq item (pop todo) + pattern (format "\\(%s\\)\\'" (symbol-value (nth 0 item))) + action (nth 1 item)) (tramp-message vec 5 "Looking for regexp \"%s\" from remote shell" pattern) (when (tramp-check-for-regexp proc pattern) @@ -4135,9 +4205,8 @@ performed successfully. Any other value means an error." (catch 'tramp-action (tramp-process-one-action proc vec actions))))) (while (not exit) - (setq exit - (catch 'tramp-action - (tramp-process-one-action proc vec actions))))) + (setq exit (catch 'tramp-action + (tramp-process-one-action proc vec actions))))) (with-current-buffer (tramp-get-connection-buffer vec) (widen) (tramp-message vec 6 "\n%s" (buffer-string))) @@ -4158,10 +4227,9 @@ performed successfully. Any other value means an error." (tramp-get-connection-buffer vec))) ((eq exit 'process-died) (substitute-command-keys - (eval-when-compile - (concat - "Tramp failed to connect. If this happens repeatedly, try\n" - " `\\[tramp-cleanup-this-connection]'")))) + (concat + "Tramp failed to connect. If this happens repeatedly, try\n" + " `\\[tramp-cleanup-this-connection]'"))) ((eq exit 'timeout) (format-message "Timeout reached, see buffer `%s' for details" @@ -4176,18 +4244,21 @@ performed successfully. Any other value means an error." (defun tramp-accept-process-output (proc &optional timeout) "Like `accept-process-output' for Tramp processes. This is needed in order to hide `last-coding-system-used', which is set -for process communication also." +for process communication also. +If the user quits via `C-g', it is propagated up to `tramp-file-name-handler'." (with-current-buffer (process-buffer proc) (let ((inhibit-read-only t) last-coding-system-used result) - ;; JUST-THIS-ONE is set due to Bug#12145. - (tramp-message - proc 10 "%s %s %s %s\n%s" - proc timeout (process-status proc) - (with-local-quit - (setq result (accept-process-output proc timeout nil t))) - (buffer-string)) + ;; JUST-THIS-ONE is set due to Bug#12145. `with-local-quit' + ;; returns t in order to report success. + (if (with-local-quit + (setq result (accept-process-output proc timeout nil t)) t) + (tramp-message + proc 10 "%s %s %s %s\n%s" + proc timeout (process-status proc) result (buffer-string)) + ;; Propagate quit. + (keyboard-quit)) result))) (defun tramp-search-regexp (regexp) @@ -4362,7 +4433,7 @@ would yield t. On the other hand, the following check results in nil: (tramp-equal-remote \"/sudo::/etc\" \"/su::/etc\") If both files are local, the function returns t." - (or (and (null (file-remote-p file1)) (null (file-remote-p file2))) + (or (and (null (tramp-tramp-file-p file1)) (null (tramp-tramp-file-p file2))) (and (tramp-tramp-file-p file1) (tramp-tramp-file-p file2) (string-equal (file-remote-p file1) (file-remote-p file2))))) @@ -4455,9 +4526,9 @@ This is used to map a mode number to a permission string.") (suid (> (logand (ash mode -9) 4) 0)) (sgid (> (logand (ash mode -9) 2) 0)) (sticky (> (logand (ash mode -9) 1) 0))) - (setq user (tramp-file-mode-permissions user suid "s")) - (setq group (tramp-file-mode-permissions group sgid "s")) - (setq other (tramp-file-mode-permissions other sticky "t")) + (setq user (tramp-file-mode-permissions user suid "s") + group (tramp-file-mode-permissions group sgid "s") + other (tramp-file-mode-permissions other sticky "t")) (concat type user group other))) (defun tramp-file-mode-permissions (perm suid suid-text) @@ -4487,16 +4558,15 @@ If FILENAME is remote, a file name handler is called." (when (and modes (not (zerop (logand modes #o2000)))) (setq gid (tramp-compat-file-attribute-group-id (file-attributes dir))))) - (let ((handler (find-file-name-handler filename 'tramp-set-file-uid-gid))) - (if handler - (funcall handler #'tramp-set-file-uid-gid filename uid gid) - ;; On W32 systems, "chown" does not work. - (unless (memq system-type '(ms-dos windows-nt)) - (let ((uid (or (and (natnump uid) uid) (tramp-get-local-uid 'integer))) - (gid (or (and (natnump gid) gid) (tramp-get-local-gid 'integer)))) - (tramp-call-process - nil "chown" nil nil nil (format "%d:%d" uid gid) - (tramp-unquote-shell-quote-argument filename))))))) + (if-let ((handler (find-file-name-handler filename 'tramp-set-file-uid-gid))) + (funcall handler #'tramp-set-file-uid-gid filename uid gid) + ;; On W32 systems, "chown" does not work. + (unless (memq system-type '(ms-dos windows-nt)) + (let ((uid (or (and (natnump uid) uid) (tramp-get-local-uid 'integer))) + (gid (or (and (natnump gid) gid) (tramp-get-local-gid 'integer)))) + (tramp-call-process + nil "chown" nil nil nil (format "%d:%d" uid gid) + (tramp-unquote-shell-quote-argument filename)))))) (defun tramp-get-local-uid (id-format) "The uid of the local user, in ID-FORMAT. @@ -4562,12 +4632,8 @@ be granted." (concat "file-attributes-" suffix) nil) (file-attributes (tramp-make-tramp-file-name vec) (intern suffix)))) - (remote-uid - (tramp-get-connection-property - vec (concat "uid-" suffix) nil)) - (remote-gid - (tramp-get-connection-property - vec (concat "gid-" suffix) nil)) + (remote-uid (tramp-get-remote-uid vec (intern suffix))) + (remote-gid (tramp-get-remote-gid vec (intern suffix))) (unknown-id (if (string-equal suffix "string") tramp-unknown-id-string tramp-unknown-id-integer))) @@ -4601,6 +4667,32 @@ be granted." (tramp-compat-file-attribute-group-id file-attr)))))))))))) +(defun tramp-get-remote-uid (vec id-format) + "The uid of the remote connection VEC, in ID-FORMAT. +ID-FORMAT valid values are `string' and `integer'." + (with-tramp-connection-property vec (format "uid-%s" id-format) + (or (when-let + ((handler + (find-file-name-handler + (tramp-make-tramp-file-name vec) 'tramp-get-remote-uid))) + (funcall handler #'tramp-get-remote-uid vec id-format)) + ;; Ensure there is a valid result. + (and (equal id-format 'integer) tramp-unknown-id-integer) + (and (equal id-format 'string) tramp-unknown-id-string)))) + +(defun tramp-get-remote-gid (vec id-format) + "The gid of the remote connection VEC, in ID-FORMAT. +ID-FORMAT valid values are `string' and `integer'." + (with-tramp-connection-property vec (format "gid-%s" id-format) + (or (when-let + ((handler + (find-file-name-handler + (tramp-make-tramp-file-name vec) 'tramp-get-remote-uid))) + (funcall handler #'tramp-get-remote-gid vec id-format)) + ;; Ensure there is a valid result. + (and (equal id-format 'integer) tramp-unknown-id-integer) + (and (equal id-format 'string) tramp-unknown-id-string)))) + (defun tramp-local-host-p (vec) "Return t if this points to the local host, nil otherwise. This handles also chrooted environments, which are not regarded as local." @@ -4615,15 +4707,15 @@ This handles also chrooted environments, which are not regarded as local." ;; handlers. `tramp-local-host-p' is also called for "smb" and ;; alike, where it must fail. (tramp-get-method-parameter vec 'tramp-login-program) + ;; Direct actions aren't possible for crypted directories. + (null tramp-crypt-enabled) ;; The local temp directory must be writable for the other user. (file-writable-p (tramp-make-tramp-file-name vec (tramp-compat-temporary-file-directory) 'nohop)) ;; On some systems, chown runs only for root. (or (zerop (user-uid)) - ;; This is defined in tramp-sh.el. Let's assume this is - ;; loaded already. - (zerop (tramp-compat-funcall 'tramp-get-remote-uid vec 'integer)))))) + (zerop (tramp-get-remote-uid vec 'integer)))))) (defun tramp-get-remote-tmpdir (vec) "Return directory for temporary files on the remote host identified by VEC." @@ -4632,22 +4724,25 @@ This handles also chrooted environments, which are not regarded as local." (tramp-make-tramp-file-name vec (or (tramp-get-method-parameter vec 'tramp-tmpdir) "/tmp")))) (or (and (file-directory-p dir) (file-writable-p dir) - (tramp-compat-file-local-name dir)) + (tramp-file-local-name dir)) (tramp-error vec 'file-error "Directory %s not accessible" dir)) dir))) +(defun tramp-make-tramp-temp-name (vec) + "Generate a temporary file name on the remote host identified by VEC." + (make-temp-name + (expand-file-name tramp-temp-name-prefix (tramp-get-remote-tmpdir vec)))) + (defun tramp-make-tramp-temp-file (vec) "Create a temporary file on the remote host identified by VEC. Return the local name of the temporary file." - (let ((prefix (expand-file-name - tramp-temp-name-prefix (tramp-get-remote-tmpdir vec))) - result) + (let (result) (while (not result) ;; `make-temp-file' would be the natural choice for ;; implementation. But it calls `write-region' internally, ;; which also needs a temporary file - we would end in an ;; infinite loop. - (setq result (make-temp-name prefix)) + (setq result (tramp-make-tramp-temp-name vec)) (if (file-exists-p result) (setq result nil) ;; This creates the file by side effect. @@ -4655,7 +4750,7 @@ Return the local name of the temporary file." (set-file-modes result #o0700))) ;; Return the local part. - (with-parsed-tramp-file-name result nil localname))) + (tramp-file-local-name result))) (defun tramp-delete-temp-file-function () "Remove temporary files related to current buffer." @@ -4682,7 +4777,7 @@ this file, if that variable is non-nil." (let ((system-type (if (and (stringp tramp-auto-save-directory) - (file-remote-p tramp-auto-save-directory)) + (tramp-tramp-file-p tramp-auto-save-directory)) 'not-windows system-type)) (auto-save-file-name-transforms @@ -4820,11 +4915,29 @@ verbosity of 6." (tramp-message vec 6 "%s" result) result)) +(defun tramp-process-running-p (process-name) + "Return t if system process PROCESS-NAME is running for `user-login-name'." + (when (stringp process-name) + (catch 'result + (dolist (pid (list-system-processes)) + (when-let ((attributes (process-attributes pid)) + (comm (cdr (assoc 'comm attributes)))) + (and (string-equal (cdr (assoc 'user attributes)) (user-login-name)) + ;; The returned command name could be truncated to 15 + ;; characters. Therefore, we cannot check for `string-equal'. + (string-prefix-p comm process-name) + (throw 'result t))))))) + (defun tramp-read-passwd (proc &optional prompt) "Read a password from user (compat function). Consults the auth-source package. Invokes `password-read' if available, `read-passwd' else." - (let* ((case-fold-search t) + (let* (;; If `auth-sources' contains "~/.authinfo.gpg", and + ;; `exec-path' contains a relative file name like ".", it + ;; could happen that the "gpg" command is not found. So we + ;; adapt `default-directory'. (Bug#39389, Bug#39489) + (default-directory (tramp-compat-temporary-file-directory)) + (case-fold-search t) (key (tramp-make-tramp-file-name ;; In tramp-sh.el, we must use "password-vector" due to ;; multi-hop. @@ -4976,10 +5089,12 @@ name of a process or buffer, or nil to default to the current buffer." (tramp-error proc 'error "Process %s is not active" proc) (tramp-message proc 5 "Interrupt process %s with pid %s" proc pid) ;; This is for tramp-sh.el. Other backends do not support this (yet). + ;; Not all "kill" implementations support process groups by + ;; negative pid, so we try both variants. (tramp-compat-funcall 'tramp-send-command (process-get proc 'vector) - (format "kill -2 -%d" pid)) + (format "(\\kill -2 -%d || \\kill -2 %d) 2>/dev/null" pid pid)) ;; Wait, until the process has disappeared. If it doesn't, ;; fall back to the default implementation. (while (tramp-accept-process-output proc 0)) @@ -4993,6 +5108,23 @@ name of a process or buffer, or nil to default to the current buffer." (lambda () (remove-hook 'interrupt-process-functions #'tramp-interrupt-process)))) +(defun tramp-get-signal-strings () + "Strings to return by `process-file' in case of signals." + ;; We use key nil for local connection properties. + (with-tramp-connection-property nil "signal-strings" + (let (result) + (if (and (stringp shell-file-name) (executable-find shell-file-name)) + (dotimes (i 128) + (push + (if (= i 19) 1 ;; SIGSTOP + (call-process + shell-file-name nil nil nil "-c" (format "kill -%d $$" i))) + result)) + (dotimes (i 128) + (push (format "Signal %d" i) result))) + ;; Due to Bug#41287, we cannot add this to the `dotimes' clause. + (reverse result)))) + ;; Checklist for `tramp-unload-hook' ;; - Unload all `tramp-*' packages ;; - Reset `file-name-handler-alist' @@ -5034,16 +5166,5 @@ name of a process or buffer, or nil to default to the current buffer." ;; and friends, for most of the handlers this is the major ;; difference between the different backends. Other handlers but ;; *-process-file would profit from this as well. -;; -;; * Get rid of `shell-command'. In its primary implementation, it -;; uses `process-file-shell-command' and -;; `start-file-process-shell-command', which is sufficient due to -;; connection-local `shell-file-name'. - ;;; tramp.el ends here - -;; Local Variables: -;; mode: Emacs-Lisp -;; coding: utf-8 -;; End: |