Generate release notes for your local git project

git.release_notes.sh

#!/bin/env bash

usage="""Echo release notes for your git repo
Usage: 
${0##*/} --release-name|-R <release_name> --remote-name|-r <Name Of Your Remote Git Repo> --start-tag-or-commit|-s <Tag Name to Start From> --end-tag-or-commit|-e <Tag Name to End At>
Example:
${0##*/} --release-name 'Release 2020-06-03 v1.0.0' --remote-name origin --start-tag-or-commit 74d731e --end-tag-or-commit 86f126d
${0##*/} -R 'Release 2020-06-03 v1.0.0' -r origin -s 74d731e --e 86f126d
"""

if [[ ($# -lt 1) || ("$*" =~ .*--help.*) ]];then
	echo -e "${usage}"
	exit 0
fi

while (( "$#" )); do
	if [[ "$1" =~ --release-name|-R$ ]]; then release_name=$2;fi    
	if [[ "$1" =~ --remote-name|-r$ ]]; then remote_name=$2;fi    
	if [[ "$1" =~ --start-tag-or-commit|-s$ ]]; then start_tag_or_commit=$2;fi    
	if [[ "$1" =~ --end-tag-or-commit|-e$ ]]; then end_tag_or_commit=$2;fi    
	shift
done

git_branch=$(git rev-parse --abbrev-ref HEAD);
repo_url=$(git config --get remote.${remote_name}.url | sed 's/\.git//' | sed 's/:\/\/.*@/:\/\//');

echo "## ${release_name}"
echo
for commit in "$(git log --no-merges ${start_tag_or_commit}..${end_tag_or_commit} --format="* %s [%h]($repo_url/commit/%H)" | sed 's/      / /')"
do
  echo "${commit}"
done