Better Git Branch output

better-git-branch.sh

#!/usr/bin/env bash

# From: https://gist.github.com/schacon/e9e743dee2e92db9a464619b99e94eff
#
# Changelog:
# 
#  - 2024-03-15: Also output current branch

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
NO_COLOR='\033[0m'
BLUE='\033[0;34m'
YELLOW='\033[0;33m'
NO_COLOR='\033[0m'

width1=5
width2=6
width3=30
width4=20
width5=40

# Function to count commits
count_commits() {
	local branch="$1"
	local base_branch="$2"
	local ahead_behind

	ahead_behind=$(git rev-list --left-right --count "$base_branch"..."$branch")
	echo "$ahead_behind"
}

describe() {
	branch="$1"

	# Get branch description
	description=$(git config branch."$branch".description)

	if [ "$2" == "+" ]; then
		# Count commits ahead and behind
		ahead_behind=$(count_commits "$sha" "$main_branch")
		ahead=$(echo "$ahead_behind" | cut -f2)
		behind=$(echo "$ahead_behind" | cut -f1)
	else
		ahead="-"
		behind="-"
	fi

	# Display branch info
	printf "${GREEN}%-${width1}s ${RED}%-${width2}s ${BLUE}%-${width3}s ${YELLOW}%-${width4}s ${NO_COLOR}%-${width5}s\n" $ahead $behind $branch "$time" "$description"
}

# Main script
main_branch=$(git rev-parse HEAD)

printf "${GREEN}%-${width1}s ${RED}%-${width2}s ${BLUE}%-${width3}s ${YELLOW}%-${width4}s ${NO_COLOR}%-${width5}s\n" "Ahead" "Behind" "Branch" "Last Commit" " "

# Separator line for clarity
printf "${GREEN}%-${width1}s ${RED}%-${width2}s ${BLUE}%-${width3}s ${YELLOW}%-${width4}s ${NO_COLOR}%-${width5}s\n" "-----" "------" "------------------------------" "-------------------" " "

format_string="%(objectname:short)@%(refname:short)@%(committerdate:relative)"
IFS=$'\n'

for branchdata in $(git for-each-ref --sort=-authordate --format="$format_string" refs/heads/ --no-merged); do
	sha=$(echo "$branchdata" | cut -d '@' -f1)
	branch=$(echo "$branchdata" | cut -d '@' -f2)
	time=$(echo "$branchdata" | cut -d '@' -f3)
	if [ "$branch" != "$main_branch" ]; then
		describe "$branch" +
	fi
done

describe $(git rev-parse --abbrev-ref HEAD)