#!/bin/bash
# Ver: 1.3 by Endial Fang (endial@126.com)
# 
# 应用通用业务处理函数

. /usr/local/lib/libcommon.sh       # 通用函数库

. /usr/local/lib/libfile.sh
. /usr/local/lib/libfs.sh
. /usr/local/lib/liblog.sh
. /usr/local/lib/libos.sh
. /usr/local/lib/libservice.sh
. /usr/local/lib/libvalidations.sh

# 检测应用相应的配置文件是否存在，如果不存在，则从默认配置文件目录拷贝一份
# 默认配置文件路径：/etc/${APP_NAME}
# 目标配置文件路径：/srv/conf/${APP_NAME}
# 参数：
#   $1 - 目标路径
#   $2 - 源路径
#   $* - 基础路径下的文件及目录列表，以" "分割
# 例子: 
#   ensure_config_file_exist /etc/${APP_NAME} conf.d server.conf
app_ensure_config_file_exist() {
    local -r dist_path="${1:?dist paths is missing}"
    local -r base_path="${2:?source paths is missing}"
    local f=""

    shift 2
    debug "List to check in ${base_path}: $@"
    while [ "$#" -gt 0 ]; do
        f="${1}"
        debug " Process \"${f}\""
        if [ -d "${base_path}/${f}" ]; then
            [[ ! -d "${dist_path}/${f}" ]] && debug " Create directory: ${dist_path}/${f}" && mkdir -p "${dist_path}/${f}"
            [[ ! -z $(ls -A "${base_path}/${f}") ]] && app_ensure_config_file_exist "${dist_path}/${f}" "${base_path}/${f}" $(ls -A "${base_path}/${f}")
        else
            [[ ! -e "${dist_path}/${f}" ]] && debug " Copy: ${base_path}/${f} to ${dist_path}" && cp "${base_path}/${f}" "${dist_path}"
        fi
        shift
    done
}