From d4daece76b4ecf6df70763ecb736dd5bd253f5df Mon Sep 17 00:00:00 2001
From: "Justin M. Keyes" <justinkz@gmail.com>
Date: Mon, 13 Apr 2015 20:05:45 -0400
Subject: install: wait for LF in non-interactive shell

"read -n 1 ..." ignores all but the first character of a line-delimited
stream (e.g. "yes n | ./install").
---
 install | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'install')

diff --git a/install b/install
index a8bb0749..3b8dbe6f 100755
--- a/install
+++ b/install
@@ -5,8 +5,15 @@ version=0.9.7
 cd $(dirname $BASH_SOURCE)
 fzf_base=$(pwd)
 
+# If stdin is a tty, we are "interactive".
+[ -t 0 ] && interactive=yes
+
 ask() {
-  read -p "$1 ([y]/n) " -n 1 -r
+  # non-interactive shell: wait for a linefeed
+  #     interactive shell: continue after a single keypress
+  [ -n "$interactive" ] && read_n='-n 1' || read_n=
+
+  read -p "$1 ([y]/n) " $read_n -r
   echo
   [[ ! $REPLY =~ ^[Nn]$ ]]
 }
-- 
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