#!/bin/bash
# ----------------------------------------------------
# Used to update the project's refs/meta/config
# ----------------------------------------------------

GERRIT_URL=$(git remote show origin | grep "Fetch URL" | cut -d: -f2- | grep ssh)

set -e

if [ -z "$GERRIT_URL" ]; then
  GERRIT_USER=${GERRIT_USER:-$USER}
  GERRIT_PROJECT=${GERRIT_PROJECT:-onos}
  GERRIT_URL="ssh://$GERRIT_USER@gerrit.onosproject.org:29418/$GERRIT_PROJECT"
else
  GERRIT_PROJECT=${GERRIT_URL##*/}
  GERRIT_USER=$(echo ${GERRIT_URL#*//} | cut -d@ -f1)
fi

function setup {
  DIR=$(mktemp -d /tmp/$GERRIT_PROJECT-config.XXXXX) || { echo "Failed to create temp file"; exit 1; }
  cd $DIR
  git init
  git remote add origin $GERRIT_URL
  git fetch origin refs/meta/config:refs/remotes/origin/meta/config
  git checkout meta/config
}

function cleanup {
  # clean up the directory
  rm -rf $DIR
}

function testReleaseMembership {
    ssh -p 29418 gerrit.onosproject.org gerrit ls-members "ONOS\ Release" | grep -q $GERRIT_USER ||
        (echo 'ERROR: Not a member of the ONOS Release group'; cleanup; exit 1)
}

setup
case $1 in
  block)
    testReleaseMembership
    sed -i '' "s/submit = group/submit = block group/g" project.config
    sed -i '' "s/push = block group ONOS Release/push = group ONOS Release/g" project.config
    git diff
    git commit -am"Blocking submit for all users in project"
    git push origin HEAD:refs/meta/config
    ;;
  unblock)
    testReleaseMembership
    sed -i '' "s/submit = block group/submit = group/g" project.config
    sed -i '' "s/push = group ONOS Release/push = block group ONOS Release/g" project.config
    git diff
    git commit -am"Unblocking submit for all users in project"
    git push origin HEAD:refs/meta/config
    ;;
  edit)
    echo
    echo "Make your changes now."
    echo "To push changes, commit them and exit with 0"
    echo "To abandon changes, do not commit or exit with non-zero value" 
    bash -i && git push origin HEAD:refs/meta/config || echo "ABANDONED CHANGES"
    ;;
  *)
    echo
    echo "USAGE: onos-edit-config <option>"
    echo "   block: blocks submits for all users in the project"
    echo "   unblock: unblocks submits for all users in the project"
    echo "   edit: allows you to make arbitrary changes to project config"
esac
cleanup