From 5f0bd841b147b2157aaca48c9af60f157c4ffc55 Mon Sep 17 00:00:00 2001
From: Jean-Christophe Vanhalle <jc.vanhalle@gmail.com>
Date: Sun, 11 Apr 2021 23:52:21 +0200
Subject: [PATCH] adds comment

---
 create.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/create.sh b/create.sh
index 6ab0547..63069d4 100755
--- a/create.sh
+++ b/create.sh
@@ -40,8 +40,10 @@ PING_MYSQL="mysqladmin \
   --user=${DB_USER} \
   --password=${DB_USER_PASSWORD} \
   --silent"
-# weird [: mysqld: unexpected operator when using PING_MYSQL but it works
-while [ ! $(docker exec ${DOCKER_PREFIX}-web /bin/sh -c "${PING_MYSQL}") ]
+# [: mysqld: unexpected operator when not using [
+# see: https://unix.stackexchange.com/a/482059
+#while [ ! $(docker exec ${DOCKER_PREFIX}-web /bin/sh -c "${PING_MYSQL}") ]
+while ! docker exec ${DOCKER_PREFIX}-web /bin/sh -c "${PING_MYSQL}"
 do
     echo Waiting for ${DOCKER_PREFIX}-db to accept connections…
     sleep 1