Manually check if repo has been updated

check_repo_status.sls

#!/bin/sh

GIT_DIR="/srv/project-name/src/"
RESTART_SCRIPT="sh /etc/project-name/deploy.sh"
SLACK_WEBHOOK="https://hooks.slack.com/services/XXXXXX/XXXXXX/XXXXXXXXXXXX"
SLACK_CHANNEL="#development"

echo "Fetching..."
git --git-dir=$GIT_DIR.git --work-tree=$GIT_DIR fetch

LOCAL=$(git --git-dir=$GIT_DIR.git --work-tree=$GIT_DIR rev-parse @{u})
REMOTE=$(git --git-dir=$GIT_DIR.git --work-tree=$GIT_DIR rev-parse HEAD)

echo "Local is at $LOCAL ... Remote is at $REMOTE"

if [ $LOCAL = $REMOTE ]; then
    echo "Up-to-date"

else

    echo "Need to pull"

    OUTPUT_UPDATE=$(eval $RESTART_SCRIPT)

    /usr/bin/curl \
      -X PUT \
      -s \
      --data-urlencode "payload={ \
          \"channel\": \"$SLACK_CHANNEL\", \
          \"pretext\": \"New deployment at $GIT_DIR\", \
          \"text\": \"Deployment at $GIT_DIR dated to $REMOTE: $OUTPUT_UPDATE\" \
      }" \
      $SLACK_WEBHOOK
fi