update_scripts

#!/bin/bash

startpoint=73
cmdpoint=1087
endpoint=1117
lenient="no"

sourcedir="./installers"
scriptlist=$(ls "$sourcedir")
template="$sourcedir/template"
startcheck=$(sed -n "$startpoint"p $template | grep "^# template")
cmdcheck=$(sed -n "$cmdpoint"p $template | grep "^# script custom routines")
endcheck=$(sed -n "$endpoint"p $template | grep "^exit 0")

if [ -n "$startcheck" ] && [ -n "$endcheck" ]; then
    echo "lines specified match template expected patterns"
else
    echo "lines specified do not match template expected patterns"
    exit 1
fi

for script in ${scriptlist[@]}; do
    validcheck=$(sed -n "$startpoint","$startpoint"p "$sourcedir/$script" | grep "template")
    if [ -n "$validcheck" ]; then
        if [ "$lenient" == "yes" ]; then
            endpoint=$((endpoint + 10))
            blockcheck=$(sed -n "$startpoint","$endpoint"p "$sourcedir/$script" | grep "custom commands in this scope")
        else
            blockcheck=$(sed -n "$cmdpoint","$endpoint"p "$sourcedir/$script" | grep "custom commands in this scope")
        fi

        if [ -n "$blockcheck" ]; then
            echo "processing $script ..."
            variable=$(head -n "$startpoint" "$sourcedir/$script" | sed -e "$ d")
            common=$(sed -n "$startpoint","$endpoint"p "$template")

            { echo "$variable" ; echo "" ; echo "$common"; } > "$sourcedir/$script"
        fi
    fi
done

exit 0