commit 239be02234dbffcf42eaeabb5576208a7ac69e41
Author: Richard Heck <rgh...@lyx.org>
Date:   Thu Jan 19 15:34:45 2017 -0500

    Allow LyX to open empty files (created, e.g., via "touch").
    
    Patch from new contributor Jan Niklas Hasse.
    
    (cherry picked from commit 0d77a7e3251aa7a971a365e3fa698ce9f26e2b9d)
---
 lib/generate_contributions.py |    8 ++++++++
 src/buffer_funcs.cpp          |   18 ++++++++++++------
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/lib/generate_contributions.py b/lib/generate_contributions.py
index 41c4961..50ad4dc 100755
--- a/lib/generate_contributions.py
+++ b/lib/generate_contributions.py
@@ -827,6 +827,14 @@ contributors = [
                  "9 June 2015",
                  u"Haiku OS support"),
 
+     contributor(u"Jan Niklas Hasse",
+                 "jhasse () bixense ! com",
+                 "GPL",
+                 "Re: Patch to make it possible to open empty files",
+                 "m=148163124122780",
+                 "23 December 2016",
+                 u"File opening enhancement"),
+
      contributor(u"Richard Heck",
                  "rgheck () comcast ! net",
                  "GPL",
diff --git a/src/buffer_funcs.cpp b/src/buffer_funcs.cpp
index 03ecc90..beab239 100644
--- a/src/buffer_funcs.cpp
+++ b/src/buffer_funcs.cpp
@@ -95,12 +95,18 @@ Buffer * checkAndLoadLyXFile(FileName const & filename, 
bool const acceptDirty)
        bool const exists = filename.exists();
        bool const tryVC = exists ? false : LyXVC::fileInVC(filename);
        if (exists || tryVC) {
-               if (exists && !filename.isReadableFile()) {
-                       docstring text = bformat(_("The file %1$s exists but is 
not "
-                               "readable by the current user."),
-                               from_utf8(filename.absFileName()));
-                       Alert::error(_("File not readable!"), text);
-                       return 0;
+               if (exists) {
+                       if (!filename.isReadableFile()) {
+                               docstring text = bformat(_("The file %1$s 
exists but is not "
+                                       "readable by the current user."),
+                                       from_utf8(filename.absFileName()));
+                               Alert::error(_("File not readable!"), text);
+                               return 0;
+                       }
+                       if (filename.extension() == "lyx" && 
filename.isFileEmpty()) {
+                               // Makes it possible to open an empty (0 bytes) 
.lyx file
+                               return newFile(filename.absFileName(), "", 
true);
+                       }
                }
                Buffer * b = theBufferList().newBuffer(filename.absFileName());
                if (!b) {

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