# 
# Remote build&test script.
# Author: Aleksandar Prokopec
# 


SCRIPTNAME="..:: RemoteTest ::.."
DESC="This script pushes the current git repo to a remote bare repo. \
It then checks out the source tree in a workspace repo and starts the\
 build and all the tests. It can also initialize the remote bare repo\
 and the workspace repo. It assumes that the current repo refspec has\
 been set for the remote bare repository - .git/config of the current\
 repo must have a remote called <server> and the corresponding master\
 branch. Git should, naturally, be installed on both systems.\
 "
USAGE="   Usage: remotetest [--init] <user> <server> <bare-repo-path> <workspace-repo-path>"


function usage()
{
  echo $SCRIPTNAME
  echo $DESC
  echo 
  echo $USAGE
}


function error()
{
  echo "Failed."
  exit 1
}

function success()
{
  echo "Success!"
  exit 0
}

function instruct()
{
  usage
  error
}



if [ $# -lt 1 ]
then
  instruct
fi


if [[ $1 = "--init" ]]
then
  if [ $# -ne 5 ]
  then
    instruct
  fi
  USER=$2
  LOCATION=$3
  BAREREPO=$4
  WORKREPO=$5
else
  if [ $# -ne 4 ]
  then
    instruct
  fi
  USER=$1
  LOCATION=$2
  BAREREPO=$3
  WORKREPO=$4
fi

if [[ $1 = "--init" ]]
then
  # init bare repo
  ssh $USER@$LOCATION "mkdir $BAREREPO"
  ssh $USER@$LOCATION "cd $BAREREPO; git init --bare"
  if [ $? -ne 0 ]
  then
    error "Could not initialize bare repo."
  fi
  
  # push to bare repo
  git push --all
  if [ $? -ne 0 ]
  then
    error "Could not push to bare repo."
  fi
  
  # init and checkout work repo
  ssh $USER@$LOCATION "mkdir $WORKREPO"
  ssh $USER@$LOCATION "cd $WORKREPO; git clone --local $BAREREPO ."
  if [ $? -ne 0 ]
  then
    error "Could not init working repo."
  fi
  
  success
fi




# if it's not the init operation, proceed normally
# push to remote bare repo
git push $LOCATION $LOCATION/master
if [ $? -ne 0 ]
then
  error "Could not push to bare repo."
fi

# remotely checkout the repo
ssh $USER@$LOCATION "cd $WORKREPO; git pull origin master"
if [ $? -ne 0 ]
then
  error "Could remotely pull from bare repo to work repo."
fi

# run the build and tests
ssh $USER@$LOCATION "cd $WORKREPO; ant all.clean; ant test"


success