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# file      : brep/handler/ci/ci.bash.in
# copyright : Copyright (c) 2014-2019 Code Synthesis Ltd
# license   : MIT; see accompanying LICENSE file

# Utility functions useful for implementing CI request handlers.

if [ "$brep_handler_ci" ]; then
  return 0
else
  brep_handler_ci=true
fi

@import brep/handler/handler@

# Serialize the CI result manifest to stdout and exit the (sub-)shell with the
# zero status.
#
reference= # Should be assigned by the handler when becomes available.

function exit_with_manifest () # <status> <message>
{
  trace_func "$@"

  local sts="$1"
  local msg="$2"

  manifest_serializer_start

  manifest_serialize ""        "1"    # Start of manifest.
  manifest_serialize "status"  "$sts"
  manifest_serialize "message" "$msg"

  if [ -n "$reference" ]; then
    manifest_serialize "reference" "$reference"
  elif [ "$sts" == "200" ]; then
    error "no reference for code $sts"
  fi

  manifest_serializer_finish
  run exit 0
}

# Dump the repositories.manifest and packages.manifest files into the
# specified directory by running bpkg-rep-info command for the specified
# repository and using the specified fetch timeout (in seconds).
#
function dump_repository_manifests () # <repo-url> <dir> <timeout>
{
  local url="$1"
  local dir="$2"
  local tmo="$3"

  # Note that due to the --manifest option only known manifest values are
  # allowed.
  #
  if ! run_silent bpkg rep-info --fetch-timeout "$tmo" --deep --manifest \
--repositories --repositories-file "$dir/repositories.manifest" \
--packages --packages-file "$dir/packages.manifest" "$url"; then

    # Perform the sanity check to make sure that bpkg is runnable.
    #
    if ! run bpkg --version >/dev/null; then
      error "unable to run bpkg"
    fi

    exit_with_manifest 422 "unable to fetch repository information (run 'bpkg rep-info --deep --manifest $url' for details)"
  fi
}