* bug#50516: Allow using 'python-shell-send-file' across machines
@ 2021-09-11 7:03 Augusto Stoffel
2021-09-11 13:02 ` Lars Ingebrigtsen
0 siblings, 1 reply; 2+ messages in thread
From: Augusto Stoffel @ 2021-09-11 7:03 UTC (permalink / raw)
To: 50516
[-- Attachment #1: Type: text/plain, Size: 426 bytes --]
Tags: patch
This addresses the case where you do 'C-c C-l' (python-shell-send-file)
and the selected file is in a different machine than the Python process.
(This is different from a patch I sent a while back, which concerned
non-interactive use and ensured that the temp files were created in the
right machine.)
And I think this would be the last change I have to propose in the
Python shell for the time being. Thanks!
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-Allow-using-python-shell-send-file-across-machines.patch --]
[-- Type: text/patch, Size: 4968 bytes --]
From c32fd5541f97cc8e527f38c18ce7bc68b81a5513 Mon Sep 17 00:00:00 2001
From: Augusto Stoffel <arstoffel@gmail.com>
Date: Sat, 11 Sep 2021 08:27:25 +0200
Subject: [PATCH] Allow using 'python-shell-send-file' across machines
* progmodes/python.el (python-shell-eval-file-setup-code): Look for a
file coding cookie on the Python rather than on the Emacs side, to
avoid additional file transfers.
(python-shell--save-temp-file): Allow argument to be a buffer.
(python-shell-send-file): Address the case where the selected file and
the inferior process are on different machines.
---
lisp/progmodes/python.el | 45 ++++++++++++++++++++++++++--------------
1 file changed, 30 insertions(+), 15 deletions(-)
diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index 2eef52de0c..22c4dfb375 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -2842,14 +2842,20 @@ python-shell-eval-setup-code
(defconst python-shell-eval-file-setup-code
"\
-def __PYTHON_EL_eval_file(filename, tempname, encoding, delete):
- import codecs, os
+def __PYTHON_EL_eval_file(filename, tempname, delete):
+ import codecs, os, re
+ pattern = r'^[ \t\f]*#.*?coding[:=][ \t]*([-_.a-zA-Z0-9]+)'
+ with codecs.open(tempname or filename, encoding='latin-1') as file:
+ match = re.match(pattern, file.readline())
+ match = match or re.match(pattern, file.readline())
+ encoding = match.group(1) if match else 'utf-8'
with codecs.open(tempname or filename, encoding=encoding) as file:
source = file.read().encode(encoding)
if delete and tempname:
os.remove(tempname)
return __PYTHON_EL_eval(source, filename)"
- "Code used to evaluate files in inferior Python processes.")
+ "Code used to evaluate files in inferior Python processes.
+The coding cookie regexp is specified in PEP 263.")
(defun python-shell-comint-watch-for-first-prompt-output-filter (output)
"Run `python-shell-first-prompt-hook' when first prompt is found in OUTPUT."
@@ -3126,7 +3132,9 @@ python-shell--save-temp-file
(temp-file-name (make-temp-file "py"))
(coding-system-for-write (python-info-encoding)))
(with-temp-file temp-file-name
- (insert string)
+ (if (bufferp string)
+ (insert-buffer-substring string)
+ (insert string))
(delete-trailing-whitespace))
temp-file-name))
@@ -3402,11 +3410,15 @@ python-shell-send-defun
(defun python-shell-send-file (file-name &optional process temp-file-name
delete msg)
"Send FILE-NAME to inferior Python PROCESS.
+
If TEMP-FILE-NAME is passed then that file is used for processing
instead, while internally the shell will continue to use
-FILE-NAME. If TEMP-FILE-NAME and DELETE are non-nil, then
-TEMP-FILE-NAME is deleted after evaluation is performed. When
-optional argument MSG is non-nil, forces display of a
+FILE-NAME. FILE-NAME can be remote, but TEMP-FILE-NAME must be
+in the same host as PROCESS. If TEMP-FILE-NAME and DELETE are
+non-nil, then TEMP-FILE-NAME is deleted after evaluation is
+performed.
+
+When optional argument MSG is non-nil, forces display of a
user-friendly message if there's no process running; defaults to
t when called interactively."
(interactive
@@ -3416,22 +3428,25 @@ python-shell-send-file
nil ; temp-file-name
nil ; delete
t)) ; msg
- (let* ((process (or process (python-shell-get-process-or-error msg)))
- (encoding (with-temp-buffer
- (insert-file-contents
- (or temp-file-name file-name))
- (python-info-encoding)))
- (file-name (file-local-name (expand-file-name file-name)))
+ (setq process (or process (python-shell-get-process-or-error msg)))
+ (with-current-buffer (process-buffer process)
+ (unless (or temp-file-name
+ (string= (file-remote-p file-name)
+ (file-remote-p default-directory)))
+ (setq delete t
+ temp-file-name (with-temp-buffer
+ (insert-file-contents file-name)
+ (python-shell--save-temp-file (current-buffer))))))
+ (let* ((file-name (file-local-name (expand-file-name file-name)))
(temp-file-name (when temp-file-name
(file-local-name (expand-file-name
temp-file-name)))))
(comint-send-string
process
(format
- "__PYTHON_EL_eval_file(%s, %s, %s, %s)\n"
+ "__PYTHON_EL_eval_file(%s, %s, %s)\n"
(python-shell--encode-string file-name)
(python-shell--encode-string (or temp-file-name ""))
- (python-shell--encode-string (symbol-name encoding))
(if delete "True" "False")))))
(defun python-shell-switch-to-shell (&optional msg)
--
2.31.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* bug#50516: Allow using 'python-shell-send-file' across machines
2021-09-11 7:03 bug#50516: Allow using 'python-shell-send-file' across machines Augusto Stoffel
@ 2021-09-11 13:02 ` Lars Ingebrigtsen
0 siblings, 0 replies; 2+ messages in thread
From: Lars Ingebrigtsen @ 2021-09-11 13:02 UTC (permalink / raw)
To: Augusto Stoffel; +Cc: 50516
Augusto Stoffel <arstoffel@gmail.com> writes:
> This addresses the case where you do 'C-c C-l' (python-shell-send-file)
> and the selected file is in a different machine than the Python process.
> (This is different from a patch I sent a while back, which concerned
> non-interactive use and ensured that the temp files were created in the
> right machine.)
Sounds good to me; pushed to Emacs 28.
> And I think this would be the last change I have to propose in the
> Python shell for the time being. Thanks!
:-)
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-09-11 13:02 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-11 7:03 bug#50516: Allow using 'python-shell-send-file' across machines Augusto Stoffel
2021-09-11 13:02 ` Lars Ingebrigtsen
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).