open-pr

#!/bin/bash

merge_commit=$(ruby -e 'print (File.readlines(ARGV[0]) & File.readlines(ARGV[1])).last' <(git rev-list --ancestry-path $1..master) <(git rev-list --first-parent $1..master))  
if git show $merge_commit | grep -q 'pull request'  
then  
    pull_request_number=$(git log -1 --format=%B $merge_commit | sed -e 's/^.*#\([0-9]*\).*$/\1/' | head -1)
    url="`hub browse -u`/pull/${pull_request_number}"
    echo $url
fi  
open $url