Generates a structured list of Git commits by a dedicated user over a time period

my_commits.sh

#!/bin/bash

# ========================================
# ANSI Color escape codes:
# ========================================

# Black        0;30     Dark Gray     1;30
# Red          0;31     Light Red     1;31
# Green        0;32     Light Green   1;32
# Brown/Orange 0;33     Yellow        1;33
# Blue         0;34     Light Blue    1;34
# Purple       0;35     Light Purple  1;35
# Cyan         0;36     Light Cyan    1;36
# Light Gray   0;37     White         1;37

BLACK='\033[0;30m'
RED='\033[0;31m'
GREEN='\033[0;32m'
ORANGE='\033[0;33m'
BLUE='\033[0;34m'
PURPLE='\033[0;35m'
CYAN='\033[0;36m'
LGRAY='\033[0;37m'

DGRAY='\033[1;30m'
LRED='\033[1;31m'
LGREEN='\033[1;32m'
YELLOW='\033[1;33m'
LBLUE='\033[1;34m'
LPURPLE='\033[1;35m'
LCYAN='\033[1;36m'
WHITE='\033[1;37m'

NC='\033[0m' # No Color

ACTUAL_DIR=$(pwd)

# Check if a path to a repository was given
[ $# -ne 1 ] && echo "Usage: $0 </path/to/your/repository>" 1>&2 && exit 1

cd "$1"

# Ask for name of the author which should be used for the filter
DEFAULT_AUTHOR=$(git config --get user.name)
printf "Git user to filter (default: $DEFAULT_AUTHOR): "
read AUTHOR
if [[ -z "${AUTHOR}" ]]; then
	AUTHOR=${DEFAULT_AUTHOR}
fi

# Ask for year to filter
DEFAULT_YEAR=$(date +%Y)
printf "Enter the year to filter (default: ${DEFAULT_YEAR}): "
read YEAR
if [[ -z "${YEAR}" ]]; then
	YEAR=${DEFAULT_YEAR}
fi

#ask for start month
DEFAULT_START_MONTH="01"
printf "Enter start month to filter (default: ${DEFAULT_START_MONTH}): "
read START_MONTH
if [[ -z "${START_MONTH}" ]]; then
	START_MONTH=${DEFAULT_START_MONTH}
fi
if ! [[ "${START_MONTH}" =~ ^[0-9]+$ ]] ; then
   echo -e "${RED}ERROR: Not a number!${NC}"
   exit 1
fi

#ask for end month
DEFAULT_END_MONTH=$(date +%m)
printf "Enter end month to filter (default: ${DEFAULT_END_MONTH}): "
read END_MONTH
if [[ -z "${END_MONTH}" ]]; then
	END_MONTH=${DEFAULT_END_MONTH}
fi
if ! [[ "${END_MONTH}" =~ ^[0-9]+$ ]] ; then
   echo -e "${RED}ERROR: Not a number!${NC}"
   exit 1
fi

# Here we go...
REPO_NAME=$(basename `git rev-parse --show-toplevel`)
echo -e "${YELLOW}Git history for: ${AUTHOR}, ${START_MONTH}/${YEAR} - ${END_MONTH}/${YEAR}, Repo: ${REPO_NAME}${NC}"
echo

MONTH_RANGE=$(seq ${START_MONTH} ${END_MONTH})
for MONTH in $MONTH_RANGE; do
	MONTH=$(printf "%02d" $MONTH)
	GIT=$(git log --reverse --date=format-local:'%Y-%m-%d %H:%M:%S' --pretty=format:"%ad: %s" --after="${YEAR}-${MONTH}-01" --until="${YEAR}-${MONTH}-31" --author="${AUTHOR}" 2>&1)
	
	if ! [[ -z "$GIT" ]]; then
		echo -e "${YELLOW}Month: $MONTH/$YEAR${NC}"
		echo -e "${YELLOW}--------------${NC}"
		echo "${GIT}"
		echo
		echo
	fi
done

cd "${ACTUAL_DIR}"

It will produce an output like this: