From: Scott Kostyshak <skostysh@lyx.org>
Date: Wed, 19 Aug 2015 01:55:59 +0000 (-0400)
Subject: Refresh file cache before checking existence
X-Git-Tag: 2.2.0alpha1~380
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=43ca05ead4f7ea9b4fefe9888333fada4ae2d404;p=features.git

Refresh file cache before checking existence

This is done only inside LFUN_BUFFER_VIEW_CACHE so as to preserve
the benefits of caching in other places.

Without this commit, if a converter or a user (re)moves the preview
file and then calls buffer-view-cache LyX will launch the viewer for
a file that does not exist.

For a discussion and use case, see:
https://www.mail-archive.com/search?l=mid&q=55D393D7.6050403@lyx.org
---

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 2a67292c37..09cff3c95a 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -2446,6 +2446,7 @@ bool Buffer::getStatus(FuncRequest const & cmd, FuncStatus & flag)
 		break;
 
 	case LFUN_BUFFER_VIEW_CACHE:
+		(d->preview_file_).refresh();
 		enable = (d->preview_file_).exists();
 		break;