From f9a0dc44d38e04d2f8fbcd517d6c202682e896c8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Skytt=C3=A4?= <ville.skytta@iki.fi>
Date: Wed, 1 Nov 2017 09:03:33 +0200
Subject: [PATCH 1/3] Use type -p instead of which

---
 wait-for-it.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/wait-for-it.sh b/wait-for-it.sh
index bbe4043..5cef902 100755
--- a/wait-for-it.sh
+++ b/wait-for-it.sh
@@ -142,8 +142,7 @@ CHILD=${CHILD:-0}
 QUIET=${QUIET:-0}
 
 # check to see if timeout is from busybox?
-# check to see if timeout is from busybox?
-TIMEOUT_PATH=$(realpath $(which timeout))
+TIMEOUT_PATH=$(realpath $(type -p timeout))
 if [[ $TIMEOUT_PATH =~ "busybox" ]]; then
         ISBUSY=1
         BUSYTIMEFLAG="-t"

From 5fe30e7a26be72db05c142300dbbc895ab3a7630 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Skytt=C3=A4?= <ville.skytta@iki.fi>
Date: Wed, 1 Nov 2017 09:05:58 +0200
Subject: [PATCH 2/3] Use parameter expansion instead of basename

---
 wait-for-it.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wait-for-it.sh b/wait-for-it.sh
index 5cef902..cfe051c 100755
--- a/wait-for-it.sh
+++ b/wait-for-it.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 #   Use this script to test if a given TCP host/port are available
 
-cmdname=$(basename $0)
+cmdname=${0##*/}
 
 echoerr() { if [[ $QUIET -ne 1 ]]; then echo "$@" 1>&2; fi }
 

From 019f3bb5bcf6fd16015badc63dcfa007a52597f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Skytt=C3=A4?= <ville.skytta@iki.fi>
Date: Sat, 30 Dec 2017 09:25:54 +0200
Subject: [PATCH 3/3] Fall back to readlink -f if realpath is not available or
 fails

---
 wait-for-it.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wait-for-it.sh b/wait-for-it.sh
index cfe051c..eb722b0 100755
--- a/wait-for-it.sh
+++ b/wait-for-it.sh
@@ -142,7 +142,8 @@ CHILD=${CHILD:-0}
 QUIET=${QUIET:-0}
 
 # check to see if timeout is from busybox?
-TIMEOUT_PATH=$(realpath $(type -p timeout))
+TIMEOUT_PATH=$(type -p timeout)
+TIMEOUT_PATH=$(realpath $TIMEOUT_PATH 2>/dev/null || readlink -f $TIMEOUT_PATH)
 if [[ $TIMEOUT_PATH =~ "busybox" ]]; then
         ISBUSY=1
         BUSYTIMEFLAG="-t"