List branches sorted by commit dates. #bin #bash #git

git-latest

#!/bin/bash
#
# List branches sorted by commit dates.
#
# Usage:
#   git latest [--all|--tags]
#
set -eu
set -o pipefail

refs=refs/heads

while (( $# > 0 )); do
  case "$1" in
    --all)
      refs=refs/
      shift
      ;;
    --tags)
      refs=refs/tags/
      shift
      ;;
    *)
      echo "error: illegal option: $1" >&2
      exit 1
      ;;
  esac
done

maxlen() {
  awk '{ if (length > max) max = length } END { print max }'
}

refname_len=$(git for-each-ref --format='%(refname:short)' $refs | maxlen)

git for-each-ref --sort=-committerdate --color=always \
  --format="%(HEAD) %(color:yellow)%(align:$refname_len)%(refname:short)%(end)%(color:reset) %(color:magenta)[%(committerdate:short)]%(color:reset) %(contents:subject) %(color:cyan)@%(authorname)%(color:reset)" \
  $refs | less -R -S -F -X