BashInit

#!/bin/bash
#: Title                  : xxx.bash
#: Usage                  : xxx.bash [-m] [-i item] target
#: Synopsis               : for bash script setup
#: Date                   : 2015-02-13 11:23:04
#: Author                 : shulei
#: version                : 1.0
#: Description            : be used to setup bash script for jenkins job or daily bash script
#: Required               : target => which target
#: Options                : -i set items
#:                        : -m set log
#:                        : -h show usage

#########################################################################################
# ---------------------- import lib    -------------------------------------------------#
#########################################################################################
import_bsfl() {
    local __ORIGIN_PATH__="$PWD"
    script_path="${0%/*}"  # remove the script name ,get the path
    script_path=${script_path/\./$(pwd)} # if path start with . , replace with $PWD
    cd "${script_path}"

    # -------------------- start get bsfl --------------------
    if ! [ -f "bsfl" ]; then
        # down from local
        wget -q http://192.168.65.56/qinsl0106/bsfl/raw/master/bsfl
    fi
    if ! [ -f "bsfl" ]; then
        # down from gist
        wget -q https://gist.githubusercontent.com/qinshulei/af2dfb4aec520ab45771/raw/696a9a03540d423285e7658d6b1a7bb63b87fbbb/bsfl
    fi
    if ! [ -f "bsfl" ]; then
        # down from gist
        echo "can't find bsfl!"
        exit 1
    fi
    # -------------------- end get bsfl --------------------

    # import bsfl lib
    source ./bsfl
    cd "$__ORIGIN_PATH__"
}

import_bsfl

#########################################################################################
# ---------------------- main function -------------------------------------------------#
#########################################################################################
main() {
    cd_to_script_path
    init_params "$@"
    print_params
    sleep_1_minute_for_check_params

    ## start process
    do_process
}

#####################################################################################
#-------------------------------logic function--------------------------------------#
#####################################################################################
show_usage() {
    cat <<- _EOF_

A init template for bash script

Examples:
    $ xxx.bash [-m] [-i item] target

_EOF_
    exit 1
}

init_params() {
    ## init parameters
    ## constant and deault value
    MESSAGE_ENABLED=no
    items=()
    target=

    init_value_from_env
    init_value_from_opts "$@"

    ## check the parameters
    if is_null_or_empty target;then
        if is_null_or_empty TARGET;then
            show_usage
            die 1 "must input the target!"
        else
            #use env target
            target="${TARGET}"
        fi
    fi
}

init_value_from_env() {
    ## base on enviroment , set default items value .
    is_true ITEM_ENABLED   && items[${#items[*]}]=Item
}

init_value_from_opts() {
    ## parse command-line options
    while getopts "hmi:" var
    do
        case $var in
            m) MESSAGE_ENABLED=y
               ;;
            h) show_usage
               ;;
            i)
                if contains ${items[*]} "${OPTARG}";then
                    option_enabled MESSAGE_ENABLED && printf "env has contains this items : %s \n" "${OPTARG}"
                else
                    items[${#items[*]}]=${OPTARG}
                fi
                ;;
        esac
    done
    shift $(( OPTIND - 1 ))
    target=${1}
}

print_params(){
    option_enabled MESSAGE_ENABLED && printf "selected items : %s\n" "${items[*]}"
    option_enabled MESSAGE_ENABLED && printf "target : %s\n" "${target}"
}

do_process(){
    if contains ${items[*]} "item";then
        option_enabled MESSAGE_ENABLED && printf "========== start process  : %s\n" "item"
        # do something
    fi
}

#####################################################################################
#----------------------------common function ---------------------------------------#
#####################################################################################
sleep_1_minute_for_check_params() {
    option_enabled MESSAGE_ENABLED && echo "============================================================"
    option_enabled MESSAGE_ENABLED && echo "sleep 1 minute, for check params again"
    sleep 1m
    option_enabled MESSAGE_ENABLED && echo "sleep end, start process"
    option_enabled MESSAGE_ENABLED && echo "============================================================"
}

cd_to_script_path() {
    ## Script path
    script_path="${0%/*}"  # remove the script name ,get the path
    script_path=${script_path/\./$(pwd)} # if path start with . , replace with $PWD
    cd "${script_path}"
}

### ------------------------ start -----------------------------
__ORIGIN_PATH__="$PWD"
main "$@"
cd "$__ORIGIN_PATH__"