From: Mark Walters Date: Mon, 18 Nov 2013 21:10:33 +0000 (+0000) Subject: [PATCH v2] emacs: show: stop stderr appearing in buffer X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=fe14f339319983eb20fc5f68e5703a6dbbcb14a9;p=notmuch-archives.git [PATCH v2] emacs: show: stop stderr appearing in buffer --- diff --git a/f4/db3940f20878c70e01d2651ece651ac8e377bf b/f4/db3940f20878c70e01d2651ece651ac8e377bf new file mode 100644 index 000000000..df27d977d --- /dev/null +++ b/f4/db3940f20878c70e01d2651ece651ac8e377bf @@ -0,0 +1,136 @@ +Return-Path: +X-Original-To: notmuch@notmuchmail.org +Delivered-To: notmuch@notmuchmail.org +Received: from localhost (localhost [127.0.0.1]) + by olra.theworths.org (Postfix) with ESMTP id 3A03B431FD2 + for ; Mon, 18 Nov 2013 13:16:20 -0800 (PST) +X-Virus-Scanned: Debian amavisd-new at olra.theworths.org +X-Spam-Flag: NO +X-Spam-Score: 0.224 +X-Spam-Level: +X-Spam-Status: No, score=0.224 tagged_above=-999 required=5 + tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, + FREEMAIL_ENVFROM_END_DIGIT=1, FREEMAIL_FROM=0.001, + HS_INDEX_PARAM=0.023, RCVD_IN_DNSWL_LOW=-0.7] autolearn=disabled +Received: from olra.theworths.org ([127.0.0.1]) + by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) + with ESMTP id ui-nXO9zz2cp for ; + Mon, 18 Nov 2013 13:16:11 -0800 (PST) +Received: from mail-wi0-f169.google.com (mail-wi0-f169.google.com + [209.85.212.169]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) + (No client certificate requested) + by olra.theworths.org (Postfix) with ESMTPS id AC0A1431FC2 + for ; Mon, 18 Nov 2013 13:16:11 -0800 (PST) +Received: by mail-wi0-f169.google.com with SMTP id hj6so472941wib.0 + for ; Mon, 18 Nov 2013 13:16:10 -0800 (PST) +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; + h=from:to:cc:subject:date:message-id:in-reply-to:references; + bh=noe/sahnCw7qjloOrtDWEEy/NHnTaF4kGV0aMotw0a0=; + b=gHktO7ygmocCh+QizpibRykaVXO0NLg340j5zc3hnTUaQs8PUBC0cRgAHzfpU3klzb + fjldsPHqk6fTo4CVMxDGEPF9BbZu98oCIbAjWZEPRYvoWn4ia5CI919QixSL992hGAFw + npNylDJ4XCX6cqxNnxnTTugFtH5Tq1EFBDRxKcu817Z5ViR1NIjemuRMQrt4I+dt69Y0 + OpXQS4OyZelIojQANOD8kUwJ4k8anypOFnfDPnXyXkhbY3LeOPQeorHVeV4U35DYvBn0 + jNVkI9BqIoJs0stzZCneM7Ydr1l36mT9NhezdZz8KS0PnL82F1LFZ6G7n51I48FjrY8I + KCnA== +X-Received: by 10.180.206.239 with SMTP id lr15mr8534400wic.35.1384809041371; + Mon, 18 Nov 2013 13:10:41 -0800 (PST) +Received: from localhost (93-97-24-31.zone5.bethere.co.uk. [93.97.24.31]) + by mx.google.com with ESMTPSA id + ll10sm27844079wic.9.2013.11.18.13.10.40 for + (version=TLSv1.2 cipher=RC4-SHA bits=128/128); + Mon, 18 Nov 2013 13:10:40 -0800 (PST) +From: Mark Walters +To: notmuch@notmuchmail.org +Subject: [PATCH v2] emacs: show: stop stderr appearing in buffer +Date: Mon, 18 Nov 2013 21:10:33 +0000 +Message-Id: <1384809033-27624-1-git-send-email-markwalters1009@gmail.com> +X-Mailer: git-send-email 1.7.9.1 +In-Reply-To: <8761rqvt7f.fsf@zancas.localnet> +References: <8761rqvt7f.fsf@zancas.localnet> +X-BeenThere: notmuch@notmuchmail.org +X-Mailman-Version: 2.1.13 +Precedence: list +List-Id: "Use and development of the notmuch mail system." + +List-Unsubscribe: , + +List-Archive: +List-Post: +List-Help: +List-Subscribe: , + +X-List-Received-Date: Mon, 18 Nov 2013 21:16:20 -0000 + +In emacs 24.3+ the stdout/stderr from externally displaying an +attachment gets inserted into the show buffer. This is caused by +changes in mm-display-external in mm-decode.el. + +Ideally, we would put this output in the notmuch errors buffer but the +handler is called asynchronously so we don't know when the output will +appear. Thus if we put it straight into the errors buffer it could get +interleaved with other errors. Also we can't easily tell when we +have got all the error output so can't wait until the process is complete. + +One solution would be to create a new buffer for the stderr of each +attachment viewed. Again, since we can't tell when the process has +finished, we can't close these buffers automatically so this will +leave lots of buffers around. + +Thus we add a debug variable notmuch-show-attachment-debug: it this is +non-nil we create a new buffer for each viewer; if this variable is +nil we just use a temp buffer which means all error output is +discarded (this is the same behaviour as with emacs pre 24.3). +--- + +This version just adds a docstring to the debug variable describing +what it does and where the debug data is stored (ie what the buffer +name is). + +Best wishes + +Mark + + emacs/notmuch-show.el | 19 ++++++++++++++++++- + 1 files changed, 18 insertions(+), 1 deletions(-) + +diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el +index f00273a..784644c 100644 +--- a/emacs/notmuch-show.el ++++ b/emacs/notmuch-show.el +@@ -159,6 +159,15 @@ indentation." + (make-variable-buffer-local 'notmuch-show-indent-content) + (put 'notmuch-show-indent-content 'permanent-local t) + ++(defvar notmuch-show-attachment-debug nil ++ "If t log stdout and stderr from attachment handlers ++ ++When set to nil (the default) stdout and stderr from attachment ++handlers is discarded. When set to t the stdout and stderr from ++each attachment handler is logged in buffers with names beginning ++\" *notmuch-part*\". This option requires emacs version at least ++24.3 to work.") ++ + (defcustom notmuch-show-stash-mlarchive-link-alist + '(("Gmane" . "http://mid.gmane.org/") + ("MARC" . "http://marc.info/?i=") +@@ -2089,8 +2098,16 @@ caller is responsible for killing this buffer as appropriate." + This ensures that the temporary buffer created for the mm-handle + is destroyed when FN returns." + (let ((handle (notmuch-show-current-part-handle))) ++ ;; emacs 24.3+ puts stdout/stderr into the calling buffer so we ++ ;; call it from a temp-buffer, unless ++ ;; notmuch-show-attachment-debug is non-nil in which case we put ++ ;; it in " *notmuch-part*". + (unwind-protect +- (funcall fn handle) ++ (if notmuch-show-attachment-debug ++ (with-current-buffer (generate-new-buffer " *notmuch-part*") ++ (funcall fn handle)) ++ (with-temp-buffer ++ (funcall fn handle))) + (kill-buffer (mm-handle-buffer handle))))) + + (defun notmuch-show-part-button-default (&optional button) +-- +1.7.9.1 +