#!/bin/bash

# Opens the github page for a repo/branch in your browser.
# https://github.com/paulirish/git-open/
#
# git open
# git open [remote] [branch]


# are we in a git repo?
git rev-parse --is-inside-work-tree &>/dev/null

if [[ $? != 0 ]]
then
    echo "Not a git repository."
    exit 1
fi


# assume origin if not provided
# fallback to upstream if neither is present.
remote="origin"
if [ ! -z "$1" ]
then
    remote="$1"
fi

remote_url="remote.${remote}.url"

giturl=$(git config --get $remote_url)
if [ -z "$giturl" ]
then
    echo "$remote_url not set."
    exit 1
fi


# URL normalization
giturl=${giturl/git\@github\.com\:/https://github.com/}
giturl=${giturl%\.git}


# get current branch
if [ -z "$2" ]
then
    branch=`git symbolic-ref -q HEAD | sed -e 's|^refs/heads/||'`
else
    branch="$2"
fi

if [ ! -z "$branch" ]
then
    giturl="${giturl}/tree/${branch}"
fi

# simplify URL for master
giturl=${giturl/tree\/master/}

# get corrent open browser command
if [ $(uname -s) == "Darwin" ]
then
  open=open
else
  open=xdg-open
fi

# open it in a browser
$open $giturl
exit 0