Unbreakeable build

git-build

#!/bin/bash

# which silent mode (-s) is not supported on all systems. 
function alert_user {
  echo "${1}";
  which growlnotify && growlnotify `basename $0` -m "${1}"
  which notify-send && notify-send -u "${2}" "${1}" `basename $0`
}

function exit_ko {
  alert_user "${1}" "critical"; exit 1
}

function exit_ok {
  alert_user "${1}" "normal"; exit 0
}

BUILD_LOCATION="/tmp/build"
BUILD_CMD="mvn clean install -T2"

LOCATION=$(pwd)
REMOTE=${1:-origin}
REMOTE_URL=$(git remote show -n ${REMOTE} | awk '/Fetch/ {print $3}')
BRANCH=$(git symbolic-ref -q HEAD)
BRANCH=${BRANCH##refs/heads/}
 
# Git black magic to pull rebase even with uncommited work in progress
git fetch ${REMOTE}
git add -A; git ls-files --deleted -z | xargs -0 -I {} git rm {}; git commit -m "wip"
git rebase ${REMOTE}/${BRANCH}
 
if [ "$?" -ne 0 ]; then
  git rebase --abort
  git log -n 1 | grep -q -c "wip" && git reset HEAD~1
  exit_ko "Unable to rebase. please pull or rebase and fix conflicts manually."
fi
git log -n 1 | grep -q -c "wip" && git reset HEAD~1

# Private build
rm -Rf ${BUILD_LOCATION}
git clone -slb "${BRANCH}" . ${BUILD_LOCATION}
cd ${BUILD_LOCATION}

# Build with maven
set MAVEN_OPTS=-Xmx1G
${BUILD_CMD}
if [ $? -ne 0 ]; then
  exit_ko "Unable to build"
fi

# Push
git push ${REMOTE_URL} ${BRANCH}
if [ $? -ne 0 ]; then
  exit_ko "Unable to push"
fi

# Update working directory
cd ${LOCATION} && git fetch ${REMOTE}
exit_ok "Yet another successful build!"