Shell script for splitting a pull request

style-prs.sh

#!/bin/bash
new_branch() {
    ID=$(cat /proc/sys/kernel/random/uuid)
    git checkout dev
    git branch ${ID}
    git checkout ${ID}
}

try_build() {
    mvn -q -DskipTests clean test-compile
    if [ $? -eq 0 ]; then
        git add .
        git commit -m "$1"
        git push
        hub pull-request -b dev -m "$1"
        return 0
    else
        return 1
    fi
}

checkout_or_remove() {
    (git checkout stylesquashed $1 && git add $1) ||\
        git rm $1
}

export MAVEN_OPTS="-Xmx384m"
for FILE in ~/stylefixes/*; do
    new_branch
    for CHECKOUT_FILE in $(cat ${FILE}); do
        checkout_or_remove ${CHECKOUT_FILE}
    done
    # First try entire package
    try_build "Fix CheckStyle issues in ${FILE}" || (
        # Failed: try one file at a time
        git commit -m "Commit failed build so it doesn't dangle"
        for CHECKOUT_FILE in $(cat ${FILE}); do
            new_branch
            checkout_or_remove ${CHECKOUT_FILE}
            try_build "Fix CheckStyle issues in ${CHECKOUT_FILE:28}" || (
                git commit -m "Commit failed build so it doesn't dangle"
                # That also failed, so put it in the leftovers branch
                git checkout style_leftovers
                git pull --commit origin style_leftovers
                checkout_or_remove ${CHECKOUT_FILE}
                git commit -m "Add leftover file ${CHECKOUT_FILE}"
                git push
                while [ ! $? ]; do
                    git pull --commit origin style_leftovers
                    git push
                done
            )
        done
    )
done