| #! /bin/sh -e | 
 |  | 
 | # Create a new upstream user branch. | 
 |  | 
 | # Usage: | 
 | #  contrib/git-add-user-branch.sh [<personal-prefix>/]<branch-name> <base> | 
 |  | 
 | usage () | 
 | { | 
 |     echo "Usage:" | 
 |     echo "  $0 [<personal-prefix>/]<branch-name> <start-point>" | 
 |     echo | 
 |     echo "personal space must already have been set up using" | 
 |     echo "contrib/gcc-git-customization.sh" | 
 |     exit 1 | 
 | } | 
 |  | 
 | if [ $# != 2 ] | 
 | then | 
 |     usage | 
 | fi | 
 |  | 
 | userpfx=$(git config --get "gcc-config.userpfx") | 
 | user=$(git config --get "gcc-config.user") | 
 |  | 
 | if [ -z "$userpfx" -o -z "$user" ] | 
 | then | 
 |     usage | 
 | fi | 
 |  | 
 | branch=$(echo "$1" | sed -r "s:(${userpfx}/)?(.*)$:\2:") | 
 | start=$2 | 
 |  | 
 | # Sanity check the new branch argument.  If there is no '/', then the | 
 | # vendor will be the same as the entire first argument. | 
 | if [ -z "$branch" ] | 
 | then | 
 |     usage | 
 | fi | 
 |  | 
 | git push users/${userpfx} ${start}:refs/users/${user}/heads/${branch} | 
 | git fetch -q users/${userpfx} | 
 | git branch ${userpfx}/${branch} remotes/users/${userpfx}/${branch} | 
 | echo "You are now ready to check out ${userpfx}/${branch}" | 
 | echo "To push the branch upstream use:" | 
 | echo "  git push users/${userpfx} ${userpfx}/${branch}" |