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+Date: Tue, 30 Jul 2013 22:53:03 -0400\r
+From: Austin Clements <amdragon@MIT.EDU>\r
+To: Jameson Graef Rollins <jrollins@finestructure.net>\r
+Subject: Re: problems viewing attachments in emacs ui\r
+Message-ID: <20130731025303.GV2214@mit.edu>\r
+References: <87hafe4ox6.fsf@servo.finestructure.net>\r
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+\r
+Quoth Jameson Graef Rollins on Jul 28 at 10:06 am:\r
+> On Sun, Jul 28 2013, Jameson Graef Rollins <jrollins@finestructure.net> wrote:\r
+> > For instance, if I launch notmuch-show-view-part on an html part, my\r
+> > browser opens pointed at e.g. the following file:\r
+> >\r
+> > file:///home/jrollins/tmp/emm.610040w/mm.6100F_2.htm\r
+> >\r
+> > But the browser shows the following error:\r
+> >\r
+> > File not found\r
+> > Iceweasel can't find the file at /home/jrollins/tmp/emm.610040w/mm.6100F_2.htm.\r
+> \r
+> I'm now realizing that my problem with html parts is probably that\r
+> browser is attempting to open the temporary file in the background.\r
+> When the browser call returns, the caller assumes the application is\r
+> done with the temp file and purges it. So for this issue at least I\r
+> need to either convince my browser to not open the file in the\r
+> background, or tell emacs to cleanup temp files at some later time\r
+> (session termination, for instance).\r
+\r
+As pointed out by David, the root of this problem is in\r
+mm-display-external in mm-decode.el. mm-display-external was mostly\r
+rewritten between Emacs 24.1 and Emacs 24.2 (Emacs commit 1354a694).\r
+The Emacs 24.1 implementation would wait for the spawned process to\r
+exit or 30 seconds to elapse, whichever was longer, before deleting\r
+the file (Emacs 23 was much the same, but waited only 2 seconds).\r
+Based on the source comments, this appears to be the *intent* of the\r
+Emacs 24.2 implementation, but what the code actually does is to wait\r
+for whichever of these events happens *first*. So, if the spawned\r
+process exits immediately (like in your situation), the file will be\r
+deleted immediately, and even if the viewer sticks around, the file\r
+will be deleted after 30 seconds anyway.\r
+\r
+This must be affecting Gnus users the same way, but I haven't found\r
+any evidence that they're aware of it. The mm-display-external code\r
+still has this problem in both the current Emacs master and the\r
+current Gnus master.\r
projects / notmuch-archives.git / commitdiff