#!/bin/bash
#usage:
#runcmdinstaller: issue command which run in the installer and print the command output
#runcmdinstaller <node> "<command>"

node=$1
shift
cmd=$*

function print_usage {
    echo "Usage:"
    echo "       runcmdinstaller <node> <commands>"
    echo "       runcmdinstaller [-h] [--help]"
    echo "Description:"
    echo "       A debug tool to run commands inside the os installer of a node"
    echo "Notice:"
    echo "       1. runcmdinstaller is only available against the node provisioned with xcatdebugmode turned on(1 or 2)"
    echo "       2. <node> can not be multiple nodes or node group"
    echo "       3. <node> must be the node in 'installing' status"
    echo "       4. <commands> must be the commads which will return immediately, otherwise, runcmdinstaller will be blocked"
    echo "       5. runcmdinstaller can not be run concurrently"

}

if [ "$node" = "-h" ] || [ "$node" = "--help" ]; then
    print_usage
    exit 0
fi

if [ -z "$node" ] || [ -z "$cmd" ];then
   print_usage
   exit 1
fi


XCATDEBUGMODE=$(lsdef -t site -o clustersite -i xcatdebugmode 2>/dev/null | grep "xcatdebugmode="|cut -d= -f2)
if [[ -z "$XCATDEBUGMODE" || "$XCATDEBUGMODE" == "0" ]];then
    echo "Warning:"
    echo "      The xcatdebugmode is disabled"
    echo "      runcmdinstaller is only available against the node provisioned with xcatdebugmode enabled(
1 or 2)"
else
    NSupdate=$(lsdef -t site -o clustersite -i nodestatus 2>/dev/null | grep "nodestatus="|cut -d= -f2)
    nodestatus=$(lsdef $node -i status 2>/dev/null | grep "status="|cut -d= -f2)

    if [[ "$NSupdate" != "n" && "$NSupdate" != "N" &&  "$NSupdate" != "0" && "$nodestatus" != "installing" ]];then
        echo "Warning:"
        echo "      The node status update is enabled and the 'nodestatus' of $node is $nodestatus"
        echo "      runcmdinstaller can only be run against the node in 'installing' status!"
    fi
fi

type -p nc >/dev/null 2>&1
retcode=$?
if [ "$retcode" != "0" ];then
    echo "Error:"
    echo "nc(netcat) is not installed, please install it first!"
    exit $retcode
fi

echo "sh $cmd 2>&1" | nc -w 20 $node 3054