git back でひとつ前に居たbranchに戻る

git-back

#!/bin/sh

# usage:
# git back でひとつ前に居たbranchに戻る
# git back N でN個前に戻る
# git back --listで履歴だす
#
# /usr/local/libexec/git-coreに置いてchmod +xしとけ

CNT=1

if [ $# -ne 0 ]; then
  if [ $1 = "--list" ]; then
    git reflog | grep checkout | head -10 | cut -d' ' -f6
    exit
  else
    CNT=$1
  fi
fi


PREVIOUS_BRANCH=`git reflog | grep checkout | head -${CNT} | tail -1 | cut -d' ' -f6`
git checkout ${PREVIOUS_BRANCH}