pebble/sdk/tools/memory_reports.py

# Copyright 2024 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

def _convert_bytes_to_kilobytes(number_bytes):
    """
    Convert the input from bytes into kilobytes
    :param number_bytes: the number of bytes to convert
    :return: the input value converted to kilobytes
    """
    NUMBER_BYTES_IN_KBYTE = 1024
    return int(number_bytes) / NUMBER_BYTES_IN_KBYTE


def app_memory_report(platform_name, bin_type, app_size, max_ram, free_ram, resource_size=None,
                      max_resource_size=None):
    """
    This method provides a formatted string for printing the memory usage of this binary to the
    console.
    :param platform_name: the name of the current HW platform being targeted
    :param bin_type: the type of binary being built (app, lib, worker)
    :param app_size: the size of the binary
    :param max_ram: the maximum allowed size of the binary
    :param free_ram: the amount of remaining memory
    :param resource_size: the size of the resource pack
    :param max_resource_size: the maximum allowed size of the resource pack
    :return: a tuple containing the color for the string print, and the string to print
    """
    LABEL = "-------------------------------------------------------\n{} {} MEMORY USAGE\n"
    RESOURCE_SIZE = "Total size of resources:        {} bytes / {}KB\n"
    MEMORY_USAGE = ("Total footprint in RAM:         {} bytes / {}KB\n"
                    "Free RAM available (heap):      {} bytes\n"
                    "-------------------------------------------------------")

    if resource_size and max_resource_size:
        report = (LABEL.format(platform_name.upper(), bin_type.upper()) +
                  RESOURCE_SIZE.format(resource_size,
                                       _convert_bytes_to_kilobytes(max_resource_size)) +
                  MEMORY_USAGE.format(app_size, _convert_bytes_to_kilobytes(max_ram), free_ram))
    else:
        report = (LABEL.format(platform_name.upper(), bin_type.upper()) +
                  MEMORY_USAGE.format(app_size, _convert_bytes_to_kilobytes(max_ram), free_ram))

    return 'YELLOW', report


def app_resource_memory_error(platform_name, resource_size, max_resource_size):
    """
    This method provides a formatted error message for printing to the console when the resource
    size exceeds the maximum resource size supported by the Pebble firmware.
    :param platform_name: the name of the current HW platform being targeted
    :param resource_size: the size of the resource pack
    :param max_resource_size: the maximum allowed size of the resource pack
    :return: a tuple containing the color for the string print, and the string to print
    """
    report = ("======================================================\n"
              "Build failed: {}\n"
              "Error: Resource pack is too large ({}KB / {}KB)\n"
              "======================================================\n".
              format(platform_name,
                     _convert_bytes_to_kilobytes(resource_size),
                     _convert_bytes_to_kilobytes(max_resource_size)))

    return 'RED', report


def app_appstore_resource_memory_error(platform_name, resource_size, max_appstore_resource_size):
    """
    This method provides a formatted warning message for printing to the console when the resource
    pack size exceeds the maximum allowed resource size for the appstore.
    :param platform_name: the name of the current HW platform being targeted
    :param resource_size: the size of the resource pack
    :param max_appstore_resource_size: the maximum appstore-allowed size of the resource pack
    :return: a tuple containing the color for the string print, and the string to print
    """
    report = ("WARNING: Your {} app resources are too large ({}KB / {}KB). You will not be "
              "able "
              "to publish your app.\n".
              format(platform_name,
                     _convert_bytes_to_kilobytes(resource_size),
                     _convert_bytes_to_kilobytes(max_appstore_resource_size)))

    return 'RED', report


def bytecode_memory_report(platform_name, bytecode_size, bytecode_max):
    """
    This method provides a formatted string for printing the memory usage for this Rocky bytecode
    file to the console.
    :param platform_name: the name of the current HW platform being targeted
    :param bytecode_size: the size of the bytecode file, in bytes
    :param bytecode_max: the max allowed size of the bytecode file, in bytes
    :return: a tuple containing the color for the string print, and the string to print
    """
    LABEL = "-------------------------------------------------------\n{} MEMORY USAGE\n"
    BYTECODE_USAGE = ("Total size of snapshot:        {}KB / {}KB\n"
                      "-------------------------------------------------------")

    report = (LABEL.format(platform_name.upper()) +
              BYTECODE_USAGE.format(_convert_bytes_to_kilobytes(bytecode_size),
                                    _convert_bytes_to_kilobytes(bytecode_max)))

    return 'YELLOW', report


def simple_memory_report(platform_name, bin_size, resource_size=None):
    """
    This method provides a formatted string for printing the memory usage for this binary to the
    console.
    :param platform_name: the name of the current HW platform being targeted
    :param bin_size: the size of the binary
    :param resource_size: the size of the resource pack
    :return: a tuple containing the color for the string print, and the string to print
    """
    LABEL = "-------------------------------------------------------\n{} MEMORY USAGE\n"
    RESOURCE_SIZE = "Total size of resources:        {} bytes\n"
    MEMORY_USAGE = ("Total footprint in RAM:         {} bytes\n"
                    "-------------------------------------------------------")

    if resource_size:
        report = (LABEL.format(platform_name.upper()) +
                  RESOURCE_SIZE.format(resource_size) +
                  MEMORY_USAGE.format(bin_size))
    else:
        report = (LABEL.format(platform_name.upper()) +
                  MEMORY_USAGE.format(bin_size))

    return 'YELLOW', report