From 009c58b4815dd8a17a1460b5a0c417ef6fde69d7 Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Sat, 9 Dec 2017 23:21:26 +0900
Subject: [PATCH] Use $LINES instead of $FZF_PREVIEW_HEIGHT

Since 0.17.3, fzf exports $LINES and $COLUMNS to preview process.
FZF_PREVIEW_HEIGHT will be deprecated.
---
 bin/preview.rb | 4 ++--
 bin/preview.sh | 4 +---
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/bin/preview.rb b/bin/preview.rb
index f90016b..d33730a 100755
--- a/bin/preview.rb
+++ b/bin/preview.rb
@@ -37,8 +37,8 @@ if `file --mime "#{file}"` =~ /binary/
 end
 
 center = (center || 0).to_i
-if ENV['FZF_PREVIEW_HEIGHT']
-  height = ENV['FZF_PREVIEW_HEIGHT'].to_i
+if ENV['LINES']
+  height = ENV['LINES'].to_i
 else
   height = File.readable?('/dev/tty') ? `stty size < /dev/tty`.split.first.to_i : 40
   height /= 2 if split
diff --git a/bin/preview.sh b/bin/preview.sh
index 39d8d73..ca36ddd 100755
--- a/bin/preview.sh
+++ b/bin/preview.sh
@@ -36,9 +36,7 @@ if [ -z "$CENTER" ]; then
   CENTER=1
 fi
 
-if [ -n "$FZF_PREVIEW_HEIGHT" ]; then
-  LINES=$FZF_PREVIEW_HEIGHT
-else
+if [ -z "$LINES" ]; then
   if [ -r /dev/tty ]; then
     LINES=$(stty size < /dev/tty | awk '{print $1}')
   else