GitHub Pull Request script

github_pull_request.sh

#!/bin/bash
#
# This script can be set as a git alias (I alias it to `pr`)
# It will force push the current branch to your fork (github.userfork) and open your browser to the PR creation page already
# compiled with a link to the corresponding Jira (assuming the local branch begins with the Jira issue name)
#
# Configure the variables below for your environment
ORIGIN_REMOTE=`git config --get github.upstream`
if [ -z "$ORIGIN_REMOTE" ]; then
    echo "Missing git config property 'github.upstream'. Set it to the name of the remote repository which represents upstream"
    echo "e.g. git config github.upstream origin"
    exit 1
fi

USER_REMOTE=`git config --get github.userfork`
if [ -z "$USER_REMOTE" ]; then
    echo "Missing git config property 'github.userfork'. Set it to the name of the remote repository which represents your fork of the upstream repository"
    echo "e.g. git config github.upstream myfork"
    exit 1
fi


urlencode() {
    # urlencode <string>
    local length="${#1}"
    for (( i = 0; i < length; i++ )); do
        local c="${1:i:1}"
        case $c in
            [a-zA-Z0-9.~_-]) printf "$c" ;;
            *) printf '%%%02X' "'$c"
        esac
    done
}

urldecode() {
    # urldecode <string>

    local url_encoded="${1//+/ }"
    printf '%b' "${url_encoded//%/\\x}"
}

# Obtain
USER_PUSH_URL=`git remote get-url --push "$USER_REMOTE"| cut -f2 -d: | cut -f1 -d/`
ORIGIN_URL=`git remote get-url --push "$ORIGIN_REMOTE"| cut -f2 -d: | sed "s/\.git$//"`

BRANCH=`git rev-parse --abbrev-ref HEAD`
ISSUE=`echo "$BRANCH" | cut -d / -f 1`
UPSTREAM=`git rev-parse --symbolic-full-name --abbrev-ref "$BRANCH"@{u}|grep -Po "[a-zA-Z0-9]+/\K.*"`
if [ "$UPSTREAM" != "master" ]; then
    BASE_FORK="$ORIGIN_URL:$UPSTREAM..."
else
    BASE_FORK="master..."
fi
AMP='\&'
ISSUEURL=`urlencode "https://issues.jboss.org/browse/$ISSUE"`
PR="https://github.com/$ORIGIN_URL/compare/$BASE_FORK$USER_PUSH_URL:$BRANCH?pull_request[body]=$ISSUEURL"


echo "Branch: $BRANCH"
echo "Upstream: $UPSTREAM"
echo "PR: $PR"
echo "Issue: $ISSUE"


git push -f "$USER_REMOTE" "$BRANCH"
gio open "$PR"