open current branch (+ specified file) in browser (GitHub)

git-open

#!/bin/bash

# newer version is available in https://github.com/arai-ta/git-open

set -e
set -u
#set -x

if ! git show >/dev/null
then
    exit 1
fi

url=$(git remote -v | \
    awk '
        $3 ~ /fetch/{
            url=$2;
            sub(/:/,"/",url);
            sub(/git@/,"https://",url);
            sub(/\.git$/,"",url);
            print url
        }')

if [ "${1:-}" -a -e "${1:-}" ]
then
    path=$1
    br=$(git branch | \
        awk '
            /^\*/{
                print $2
            }')
    url=$url/blob/$br/$path
fi

echo $url
open $url