git-sync bash script

git-sync.sh

#!/usr/bin/env bash
# Sync your project from anywhere
# Script powerful when paired with a cronjob to constantly 
# pull in changes from upstream maintainer that may do constant commits.
# Such as in team environments
# HOW-TO:
# $ git-sync $HOME/code/projects/expressjs upstream/master

REPO=$1;
MAINTAINER=($(echo $2 | cut -d/ -f1))
MAINTAINER_BRANCH=($(echo $2 | cut -d/ -f2))

gitcmd() {
  /usr/bin/git --git-dir=$REPO/.git --work-tree=$REPO $@
};

REQUIRED_BRANCH=`gitcmd rev-parse --abbrev-ref HEAD`

if [ "$REQUIRED_BRANCH" == 'master' ]; then
 gitcmd pull -Xtheirs --no-edit --commit $MAINTAINER $MAINTAINER_BRANCH
else
  PREV_BRANCH=`gitcmd rev-parse --abbrev-ref HEAD`
  gitcmd checkout master
  gitcmd pull --rebase -Xtheirs --no-edit --commit $MAINTAINER $MAINTAINER_BRANCH
  gitcmd checkout $PREV_BRANCH
fi