#!/bin/bash

KNOWN_HOSTS=/root/.ssh/known_hosts 

if [[ "$BRANCH_NAME" == "master" && "$COPYBARA" == "run" ]]; then
  set -e
  chmod -R 0600 /root/.ssh
  ssh-keyscan github.com > $KNOWN_HOSTS
  ssh-keygen -lf $KNOWN_HOSTS | grep "SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8 github.com"
  git config --global user.name Copybot
  git config --global user.email copybot@overleaf.com
  set +e
  copybara --git-committer-email=copybot@overleaf.com --git-committer-name=Copybot
  COPYBARA_EXIT_CODE=$?
  # Exit codes are documented in java/com/google/copybara/util/ExitCode.java
  # 0 is success, 4 is no-op (i.e. no change), anything else is an error
  if [[ $COPYBARA_EXIT_CODE -eq 0 || $COPYBARA_EXIT_CODE -eq 4 ]]; then
    exit 0
  else
    exit $COPYBARA_EXIT_CODE
  fi
fi