Shell script for synchronizing local git repository with remote

gitup

#!/bin/sh

PUSH=1
BRANCH=$(git status | head -1 | sed -n 's/^# On branch //p')
STATUS_TAIL=$(git status | tail -1)
if [ "$STATUS_TAIL" = "nothing added to commit but untracked files present (use \"git add\" to track)" ]; then
        PUSH=0
fi

if [ "$PUSH" = "1" ]; then
        git add -u
        if [ $? -ne 0 ]; then exit 1; fi
        if [ "$1" = "" ]; then
                git commit
        else
                git commit -m "$1"
        fi
        if [ $? -ne 0 ]; then
                PUSH=0
        fi
fi

git pull
if [ $? -ne 0 ]; then exit 1; fi

if [ "$PUSH" = "1" ]; then
        if [ "$BRANCH" = "" ]; then
                git push
        else
                git push origin $BRANCH
        fi
        exit $?
fi