git-behind-ahead

# git branch behind & ahead - a shell function
# inspired on https://stackoverflow.com/questions/20433867/git-ahead-behind-info-between-master-and-branch
# usage: gitba branchA...branchB
gitba () {
        echo "$(cut -d '.' -f 4 <<<"$1") is compared to $(cut -d '.' -f 1 <<<"$1")"
        REVLIST="$(git rev-list --left-right --count $1)"
        echo $(cut -f 1 <<<"$REVLIST" | cut -f 1) commits behind.
        echo $(cut -f 2 <<<"$REVLIST" | cut -f 2) commits ahead.
}
# Example output:
# feature/custom-footer is compared to main
# 200 commits behind.
# 1 commits ahead.