#!/bin/bash

FEAT=$1
MASTER_CMT=100

rm -rf ${FEAT}-feature
mkdir ${FEAT}-feature
cd ${FEAT}-feature

# master branch
git init
for i in $(seq 1 ${MASTER_CMT}); do
    touch "m${i}"; git add "m${i}"; git commit -m "m${i}"
done

# features branch(es)
alfa=141
cnt=1

while [[ $cnt -le $FEAT ]];
do
    letter=$(printf '%b' "\\${alfa}")
    ancestor=`echo $(( ${MASTER_CMT} / $(( 2 * ${cnt} )) ))`
    git checkout HEAD~${ancestor}
    git checkout -b feature-${letter}

    for i in ${letter}{1..9};
    do
        touch ${i}; git add ${i}; git commit -m "${i}"
    done
    alfa=$((1 + $alfa))
    cnt=$(($cnt + 1))
    git checkout master
done