From 9978a01faa14f46f059119ae8bac6a2be944394d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Linse?= <bjorn.linse@gmail.com>
Date: Wed, 8 Apr 2015 21:47:24 +0200
Subject: [PATCH] clipboard: fix "" register not updated when clipboard=unnamed

Helped-By: Scott Prager <splinterofchaos@gmail.com>
---
 src/nvim/ops.c                                  | 17 ++++++++++-------
 .../clipboard/clipboard_provider_spec.lua       |  6 ++++++
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/src/nvim/ops.c b/src/nvim/ops.c
index 54c2edf4fa..1ed6827a33 100644
--- a/src/nvim/ops.c
+++ b/src/nvim/ops.c
@@ -775,9 +775,12 @@ void get_yank_register(int regname, int mode)
 {
   int i;
 
+  if (mode == YREG_PASTE && get_clipboard(regname, &y_current, false)) {
+    // y_current is set to clipboard contents.
+    return;
+  }
   y_append = FALSE;
-  int unnamedclip = cb_flags & CB_UNNAMEDMASK;
-  if ((regname == 0 || regname == '"') && !unnamedclip && mode != YREG_YANK && y_previous != NULL) {
+  if ((regname == 0 || regname == '"') && mode != YREG_YANK && y_previous != NULL) {
     y_current = y_previous;
     return;
   }
@@ -801,8 +804,6 @@ void get_yank_register(int regname, int mode)
   if (mode == YREG_YANK) {
     // remember the written register for unnamed paste
     y_previous = y_current;
-  } else if (mode == YREG_PASTE) {
-    get_clipboard(regname, &y_current, false);
   }
 }
 
@@ -5366,11 +5367,11 @@ static struct yankreg* adjust_clipboard_name(int *name, bool quiet, bool writing
   return NULL;
 }
 
-static void get_clipboard(int name, struct yankreg** target, bool quiet)
+static bool get_clipboard(int name, struct yankreg** target, bool quiet)
 {
   struct yankreg* reg = adjust_clipboard_name(&name, quiet, false);
   if (reg == NULL) {
-    return;
+    return false;
   }
   free_register(reg);
 
@@ -5455,7 +5456,7 @@ static void get_clipboard(int name, struct yankreg** target, bool quiet)
   }
 
   *target = reg;
-  return;
+  return true;
 
 err:
   if (reg->y_array) {
@@ -5467,6 +5468,8 @@ err:
   reg->y_array = NULL;
   reg->y_size = 0;
   EMSG("clipboard: provider returned invalid data");
+  *target = reg;
+  return false;
 }
 
 static void set_clipboard(int name)
diff --git a/test/functional/clipboard/clipboard_provider_spec.lua b/test/functional/clipboard/clipboard_provider_spec.lua
index 10a346b8ba..c5d8f57008 100644
--- a/test/functional/clipboard/clipboard_provider_spec.lua
+++ b/test/functional/clipboard/clipboard_provider_spec.lua
@@ -55,6 +55,12 @@ local function basic_register_test(noblock)
     , stuff and some more
     some textsome some text, stuff and some more]])
 
+  -- deleting a line does update ""
+  feed('ggdd""P')
+  expect([[
+    , stuff and some more
+    some textsome some text, stuff and some more]])
+
   feed('ggw<c-v>jwyggP')
   if noblock then
     expect([[