detached-head/fix-detached-head

   1 #! /usr/bin/env bash
   2
   3 git symbolic-ref -q HEAD >/dev/null && exit
   4
   5 pwd
   6
   7 declare -a branches
   8 branches=(`git branch --points-at=HEAD | tail -n +2`)
   9 if [ "${#branches[*]}" -eq 0 ]; then
  10    branches=(`git branch --points-at=HEAD -r | sed 's!^ *origin/!!'`)
  11 fi
  12
  13 if [ "${#branches[*]}" -eq 0 ]; then
  14    echo "Cannot find a branch" >&2
  15 elif [ "${#branches[*]}" -eq 1 ]; then
  16    git checkout "${branches[0]}"
  17 else
  18    echo "Too many branches" >&2
  19 fi