commit 0568d0d5f5b2300b4c18b2a05e486a92c1acafd1
parent 6fc1c5f0d8c76b70f8401b97d0de443a78d4034d
Author: Antoine Amarilli <a3nm@a3nm.net>
Date: Fri, 4 Oct 2013 00:43:20 +0200
mutt_bgrun
Diffstat:
| mutt_bgrun | | | 116 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
1 file changed, 116 insertions(+), 0 deletions(-)
diff --git a/mutt_bgrun b/mutt_bgrun
@@ -0,0 +1,116 @@
+#!/bin/sh
+# @(#) mutt_bgrun $Revision: 1.4 $
+
+# mutt_bgrun - run an attachment viewer from mutt in the background
+# Copyright (C) 1999-2002 Gary A. Johnson
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+# SYNOPSIS
+# mutt_bgrun viewer [viewer options] file
+#
+# DESCRIPTION
+# Mutt invokes external attachment viewers by writing the
+# attachment to a temporary file, executing the pipeline specified
+# for that attachment type in the mailcap file, waiting for the
+# pipeline to terminate, writing nulls over the temporary file,
+# then deleting it. This causes problems when using graphical
+# viewers such as qvpview and acroread to view attachments.
+#
+# If qvpview, for example, is executed in the foreground, the mutt
+# user interface is hung until qvpview exits, so the user can't do
+# anything else with mutt until he or she finishes reading the
+# attachment and exits qvpview. This is especially annoying when
+# a message contains several MS Office attachments--one would like
+# to have them all open at once.
+#
+# If qvpview is executed in the background, it must be given
+# enough time to completely read the file before returning control
+# to mutt, since mutt will then obliterate the file. Qvpview is
+# so slow that this time can exceed 20 seconds, and the bound is
+# unknown. So this is again annoying.
+#
+# The solution provided here is to invoke the specified viewer
+# from this script after first copying mutt's temporary file to
+# another temporary file. This script can then quickly return
+# control to mutt while the viewer can take as much time as it
+# needs to read and render the attachment.
+#
+# EXAMPLE
+# To use qvpview to view MS Office attachments from mutt, add the
+# following lines to mutt's mailcap file.
+#
+# application/msword; mutt_bgrun qvpview %s
+# application/vnd.ms-excel; mutt_bgrun qvpview %s
+# application/vnd.ms-powerpoint; mutt_bgrun qvpview %s
+#
+# AUTHOR
+# Gary A. Johnson
+# <garyjohn@spk.agilent.com>
+#
+# ACKNOWLEDGEMENTS
+# My thanks to the people who have commented on this script and
+# offered solutions to shortcomings and bugs, especially Edmund
+# GRIMLEY EVANS <edmundo@rano.org> and Andreas Somogyi
+# <aso@somogyi.nu>.
+
+prog=${0##*/}
+
+# Check the arguments first.
+
+if [ "$#" -lt "2" ]
+then
+ echo "usage: $prog viewer [viewer options] file" >&2
+ exit 1
+fi
+
+# Separate the arguments. Assume the first is the viewer, the last is
+# the file, and all in between are options to the viewer.
+
+viewer="$1"
+shift
+
+while [ "$#" -gt "1" ]
+do
+ options="$options $1"
+ shift
+done
+
+file=$1
+
+# Create a temporary directory for our copy of the temporary file.
+#
+# This is more secure than creating a temporary file in an existing
+# directory.
+
+tmpdir=~/temp/$LOGNAME$$
+umask 077
+mkdir "$tmpdir" || exit 1
+tmpfile="$tmpdir/${file##*/}"
+
+# Copy mutt's temporary file to our temporary directory so that we can
+# let mutt overwrite and delete it when we exit.
+
+cp "$file" "$tmpfile"
+
+# Run the viewer in the background and delete the temporary files when done.
+# add some grace time to reload the file with a different encoding in fx
+
+(
+ "$viewer" $options "$tmpfile"
+ sleep 30
+ rm -f "$tmpfile"
+ rmdir "$tmpdir"
+) &
