Get the user stats for the previous month from a git repo

gitStatsAllTime.sh

#!/usr/bin/env bash
format=${1:-pretty}
#if [[ "$OSTYPE" == "linux-gnu" ]]
#then
#from=$(date -d "last month" +"%d %b %Y")
#to=`date +"%d %b %Y"`
#else
#from=`date -v-1m`
#to=`date`
#fi
users=$(git shortlog -sn --no-merges | awk '{printf "%s %s\n", $2, $3}')
IFS=$'\n'

# colors
WHITE='\e[97m'
GREEN='\e[32m'
RED='\e[31m'
LIGHT_MAGENTO='\e[95m'

if [[ ${format} != 'pretty' ]]
then
    echo -e "User name;Files changed;Lines added;Lines deleted;Total lines (delta);Add./Del. ratio (1:n);Commit count"
else
    printf "${WHITE}%-30s | %-15s | %-15s | %-15s | %-20s | %-21s | %-15s\n" \
    "User name" "Files changed" "Lines added" "Lines deleted" "Total lines (delta)" "Add./Del. ratio (1:n)" "Commit count"
fi

for userName in $users
do
     result=$(git log --author="$userName" --no-merges --shortstat \
     | grep -E "fil(e|es) changed" \
     | awk '{files+=$1; inserted+=$4; deleted+=$6; delta+=$4-$6; ratio=deleted/inserted} END {printf "%s;%s;%s;%s;%s", files, inserted, deleted, delta, ratio }' -)
     countCommits=$(git shortlog -sn --no-merges --author="$userName" | awk '{print $1}')
     if [[ ${result} != ';;;;' ]]
     then
       if [[ ${format} != 'pretty' ]]
       then
         echo -e "$userName;$result;$countCommits"
       else
        IFS=';' read -r -a resultsArr <<< "$result"
        printf "%-30s | ${LIGHT_MAGENTO}%-15s ${WHITE}| ${GREEN}%-15s ${WHITE}| ${RED}%-15s ${WHITE}| %-20s | %-21s | %-15s\n" \
        "$userName" "${resultsArr[0]}" "${resultsArr[1]}" "${resultsArr[2]}" "${resultsArr[3]}" "${resultsArr[4]}" "$countCommits"
      fi
     fi
done

gitStatsLastMonth.sh

#!/usr/bin/env bash
format=${1:-pretty}
if [[ "$OSTYPE" == "linux-gnu" ]]
then
from=$(date -d "last month" +"%d %b %Y")
to=`date +"%d %b %Y"`
else
from=`date -v-1m`
to=`date`
fi
users=$(git shortlog -sn --no-merges --since="$from" --before="$to" | awk '{printf "%s %s\n", $2, $3}')
IFS=$'\n'

# colors
WHITE='\e[97m'
GREEN='\e[32m'
RED='\e[31m'
LIGHT_MAGENTO='\e[95m'

if [[ ${format} != 'pretty' ]]
then
    echo -e "User name;Files changed;Lines added;Lines deleted;Total lines (delta);Add./Del. ratio (1:n);Commit count"
else
    printf "${WHITE}%-30s | %-15s | %-15s | %-15s | %-20s | %-21s | %-15s\n" \
    "User name" "Files changed" "Lines added" "Lines deleted" "Total lines (delta)" "Add./Del. ratio (1:n)" "Commit count"
fi

for userName in $users
do
     result=$(git log --author="$userName" --no-merges --shortstat  --since="$from" --before="$to" \
     | grep -E "fil(e|es) changed" \
     | awk '{files+=$1; inserted+=$4; deleted+=$6; delta+=$4-$6; ratio=deleted/inserted} END {printf "%s;%s;%s;%s;%s", files, inserted, deleted, delta, ratio }' -)
     countCommits=$(git shortlog -sn --no-merges  --since="$from" --before="$to" --author="$userName" | awk '{print $1}')
     if [[ ${result} != ';;;;' ]]
     then
       if [[ ${format} != 'pretty' ]]
       then
         echo -e "$userName;$result;$countCommits"
       else
        IFS=';' read -r -a resultsArr <<< "$result"
        printf "%-30s | ${LIGHT_MAGENTO}%-15s ${WHITE}| ${GREEN}%-15s ${WHITE}| ${RED}%-15s ${WHITE}| %-20s | %-21s | %-15s\n" \
        "$userName" "${resultsArr[0]}" "${resultsArr[1]}" "${resultsArr[2]}" "${resultsArr[3]}" "${resultsArr[4]}" "$countCommits"
      fi
     fi
done

gitStatsRange.sh

#!/usr/bin/env bash
format=${1:-pretty}

from=$2
to=$3

users=$(git shortlog -sn --no-merges --since="$from" --before="$to" | awk '{printf "%s %s\n", $2, $3}')
IFS=$'\n'

# colors
WHITE='\e[97m'
GREEN='\e[32m'
RED='\e[31m'
LIGHT_MAGENTO='\e[95m'

if [[ ${format} != 'pretty' ]]
then
    echo -e "User name;Files changed;Lines added;Lines deleted;Total lines (delta);Add./Del. ratio (1:n);Commit count"
else
    printf "${WHITE}%-30s | %-15s | %-15s | %-15s | %-20s | %-21s | %-15s\n" \
    "User name" "Files changed" "Lines added" "Lines deleted" "Total lines (delta)" "Add./Del. ratio (1:n)" "Commit count"
fi

for userName in $users
do
     result=$(git log --author="$userName" --no-merges --shortstat  --since="$from" --before="$to" \
     | grep -E "fil(e|es) changed" \
     | awk '{files+=$1; inserted+=$4; deleted+=$6; delta+=$4-$6; ratio=deleted/inserted} END {printf "%s;%s;%s;%s;%s", files, inserted, deleted, delta, ratio }' -)
     countCommits=$(git shortlog -sn --no-merges  --since="$from" --before="$to" --author="$userName" | awk '{print $1}')
     if [[ ${result} != ';;;;' ]]
     then
       if [[ ${format} != 'pretty' ]]
       then
         echo -e "$userName;$result;$countCommits"
       else
        IFS=';' read -r -a resultsArr <<< "$result"
        printf "%-30s | ${LIGHT_MAGENTO}%-15s ${WHITE}| ${GREEN}%-15s ${WHITE}| ${RED}%-15s ${WHITE}| %-20s | %-21s | %-15s\n" \
        "$userName" "${resultsArr[0]}" "${resultsArr[1]}" "${resultsArr[2]}" "${resultsArr[3]}" "${resultsArr[4]}" "$countCommits"
      fi
     fi
done