Merge "[COMMON] Fix a few bashisms"

diff --combined kubernetes/portal/components/portal-mariadb/resources/config/mariadb/docker-entrypoint.sh
index 411ed8e,b2c2621..65b9636
--- 1/kubernetes/portal/components/portal-mariadb/resources/config/mariadb/docker-entrypoint.sh
--- 2/kubernetes/portal/components/portal-mariadb/resources/config/mariadb/docker-entrypoint.sh
+++ b/kubernetes/portal/components/portal-mariadb/resources/config/mariadb/docker-entrypoint.sh
@@@ -1,5 -1,4 +1,5 @@@
  #!/bin/bash
 +
  set -eo pipefail
  shopt -s nullglob
  
@@@ -31,15 -30,10 +31,15 @@@ file_env() 
                mysql_error "Both $var and $fileVar are set (but are exclusive)"
        fi
        local val="$def"
 +      # val="${!var}"
 +      # val="$(< "${!fileVar}")"
 +      # eval replacement of the bashism equivalents above presents no security issue here
 +      # since var and fileVar variables contents are derived from the file_env() function arguments.
 +      # This method is only called inside this script with a limited number of possible values.
        if [ "${!var:-}" ]; then
 -              val="${!var}"
 +              eval val=\$$var
        elif [ "${!fileVar:-}" ]; then
 -              val="$(< "${!fileVar}")"
 +              val="$(< "$(eval echo "\$$fileVar")")"
        fi
        export "$var"="$val"
        unset "$fileVar"
@@@ -111,7 -105,7 +111,7 @@@ docker_temp_server_start() 
                # so that it won't try to fill in a password file when it hasn't been set yet
                extraArgs=()
                if [ -z "$DATABASE_ALREADY_EXISTS" ]; then
-                       extraArgs+=( '--dont-use-mysql-root-password' )
+                       extraArgs=${extraArgs}( '--dont-use-mysql-root-password' )
                fi
                if echo 'SELECT 1' |docker_process_sql "${extraArgs[@]}" --database=mysql >/dev/null 2>&1; then
                        break
@@@ -161,7 -155,7 +161,7 @@@ docker_init_database_dir() 
                # beginning in 10.4.3, install_db uses "socket" which only allows system user root to connect, switch back to "normal" to allow mysql root without a password
                # see https://github.com/MariaDB/server/commit/b9f3f06857ac6f9105dc65caae19782f09b47fb3
                # (this flag doesn't exist in 10.0 and below)
-               installArgs+=( --auth-root-authentication-method=normal )
+               installArgs=${installArgs}( --auth-root-authentication-method=normal )
        fi
        # "Other options are passed to mysqld." (so we pass all "mysqld" arguments directly here)
        mysql_install_db "${installArgs[@]}" "${@:2}"
@@@ -197,7 -191,7 +197,7 @@@ docker_setup_env() 
  docker_process_sql() {
        passfileArgs=()
        if [ '--dont-use-mysql-root-password' = "$1" ]; then
-               passfileArgs+=( "$1" )
+               passfileArgs=${passfileArgs}( "$1" )
                shift
        fi
        # args sent in can override this db, since they will be later in the command
@@@ -329,7 -323,7 +329,7 @@@ _main() 
                # If container is started as root user, restart as dedicated mysql user
                if [ "$(id -u)" = "0" ]; then
                        mysql_note "Switching to dedicated user 'mysql'"
 -                      exec gosu mysql "$BASH_SOURCE" "$@"
 +                      exec gosu mysql "$0" "$@"
                fi
  
                # there's no database, so it needs to be initialized