#!/bin/sh

# periodically connects to the buildmaster to call ping-from slave to:
#  - report any update on the build process
#  - show that the build is still running
#  - get notified by the build master if the build is not necessary anymore

# shellcheck disable=SC2119,SC2120

# shellcheck source=../lib/load-configuration
. "${0%/*}/../lib/load-configuration"

# TODO: abort build if requested to

parent_pid="$1"
parent_tmp_dir="$2"

exec 9> "${work_dir}/ping-build-master.lock"

while kill -0 "${parent_pid}" && \
  [ -f "${parent_tmp_dir}/.ping-build-master" ]; do

  # shellcheck disable=SC2029
  find "${parent_tmp_dir}" \
    -xdev \
    -type f \
    -name '*.build-log' \
    -exec wc -l {} \; | \
    sed 's, .*/, ,' | \
    ssh \
      -i "${master_build_server_identity}" \
      -p "${master_build_server_port}" \
      "${master_build_server_user}@${master_build_server}" \
      'ping-from-slave' "$(cat "${parent_tmp_dir}/.ping-build-master")" || \
      true

  # we wait upto 60 seconds to get the lock - if we get it, the parent
  # must have released it and we're finished
  if flock -w 60 9; then
    break
  fi
done