Update 01-migrations

Fix broken bash syntax

root/etc/cont-init.d/01-migrations

@@ -5,25 +5,25 @@ MIGRATIONS_HISTORY="/config/.migrations"
 
 echo "[migrations] started"
 
-if [ ! -d $MIGRATIONS_DIR ]; then
+if [[ ! -d ${MIGRATIONS_DIR} ]]; then
   echo "[migrations] no migrations found"
   exit
 fi
 
-for MIGRATION in $(ls -1 ${MIGRATIONS_DIR}/* | sort -n); do
+for MIGRATION in $(find ${MIGRATIONS_DIR}/* | sort -n); do
   NAME="$(basename "${MIGRATION}")"
-  if [ -f $MIGRATIONS_HISTORY ] && grep -Fxq "$NAME" $MIGRATIONS_HISTORY; then
+  if [[ -f ${MIGRATIONS_HISTORY} ]] && grep -Fxq "${NAME}" ${MIGRATIONS_HISTORY}; then
     echo "[migrations] ${NAME}: skipped"
     continue
   fi
   echo "[migrations] ${NAME}: executing..."
-  chmod +x $MIGRATION
+  chmod +x "${MIGRATION}"
-  EXIT_CODE=$(/bin/bash ${MIGRATION}; echo $?)
+  EXIT_CODE=$(/bin/bash "${MIGRATION}"; echo $?)
-  if [ $EXIT_CODE -ne 0 ]; then
+  if [[ ${EXIT_CODE} -ne 0 ]]; then
-    echo "[migrations] ${NAME}: failed with exit code $EXIT_CODE, contact support"
+    echo "[migrations] ${NAME}: failed with exit code ${EXIT_CODE}, contact support"
-    exit $EXIT_CODE
+    exit "${EXIT_CODE}"
   fi
-  echo $NAME >> $MIGRATIONS_HISTORY
+  echo "${NAME}" >> ${MIGRATIONS_HISTORY}
   echo "[migrations] ${NAME}: succeeded"
 done