gitreqapply

#!/bin/bash

git remote | grep upstream > /dev/null 2>&1
if [ "$?" -ne 0 ]; then
    echo This script assumes you have upstream set as the repo to hand reqs in
    exit
fi
if [ ! -d .git ]; then
    echo This script assumes you are in the root of a repo clone
    exit
fi


upstreamname=`git remote -v | grep upstream | grep fetch | sed "s#upstream.*github.com[:/]\(.*\)/.*#\1#"`
reponame=`git remote -v | grep origin | grep push | sed "s#.*/\(.*\)\.git.*#\1#g"`

if [ $# -eq 0 ]
then
    echo "Checking $upstreamname for $reponame"
    wget --no-check-certificate https://github.com/$upstreamname/$reponame/pulls/$1 --no-clobber -O .pulls > /dev/null 2>&1
    grep js-navigation-open .pulls | sort | sed 's#    <a href="\(.*\)" class="js-navigation-open">\(.*\)</a>#https://github.com\1 https://issues.jboss.org/browse/\2#'
    rm .pulls
    exit
fi

if [ $# -ne 2 ]
then
    echo "Need pull number and branch"
    exit
fi
    git status | grep "Your branch\|Untracked\|Changes not staged"
    if [ $? -eq 0 ]; then
        echo Ensure working $2 is clean before applying
        exit
    fi

    echo "Applying pull $1 onto $2"
    rm -f $1 $1.patch
    git fetch upstream
    git checkout $2
    git up upstream $2
    git status | grep "Your branch\|Untracked\|Changes not staged"
    if [ $? -eq 0 ]; then
        echo Ensure working $2 is clean before applying
        exit
    fi
    
    wget --no-check-certificate https://github.com/$upstreamname/$reponame/pull/$1
    if [ $? -ne 0 ]; then
        echo Could not download pull req info
        exit
    fi

    wget --no-check-certificate https://github.com/$upstreamname/$reponame/pull/$1.patch
    if [ $? -ne 0 ]; then
        echo Could not download patch
        exit
    fi
    git apply --check $1.patch
    if [ $? -ne 0 ]; then
        echo patch would not be able to apply
        exit
    fi

    username=$(grep "opened this pull request" $1 | sed 's#.*href="/\(.*\)">.*</a> open.*#\1#')
    git remote | grep $username > /dev/null 2>&1
    if [ "$?" -ne 0 ]; then
        git remote add $username git://github.com/$username/$reponame.git
    fi
    git fetch $username > /dev/null 2>&1

    branchname=$(grep "span.*$username.*css-truncate-target" $1 | sed 's#.*">\(.*\)<.*#\1#')
    expr length $branchname > /dev/null 2>&1
    if [ "$?" -ne 0 ]; then
        echo "Could not find branch name, assuming first word of title!"
        branchname=$(grep "<title>" 1 | sed 's#.*<title>\([a-zA-Z0-9\-]*\) .*#\1#')
        expr length $branchname > /dev/null 2>&1
        if [ "$?" -ne 0 ]; then
            echo "Could not find branch name, aborting"
            exit
        fi
    fi
    git branch -a | grep $username-$branchname
    if [ "$?" -eq 0 ]; then
        echo "Local branch already existed"
        exit
    fi


    #Creates merge commit
    #git checkout -b $username-$branchname $2
    #git pull --rebase --ff-only git://github.com/$username/$reponame.git $branchname
    #git checkout $2
    #git merge $username-$branchname
git fetch $username
git checkout $2
git reset --hard $username/$branchname
git pull --rebase --ff-only upstream $2

git push upstream $2
git reset --hard upstream/$2
git push origin $2
    #git branch -d $username-$branchname
git remote rm $username
rm $1
rm $1.patch
xdg-open https://github.com/$upstreamname/$reponame/pull/$1