# 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. import json from subprocess import Popen, PIPE from resources.types.resource_object import ResourceObject from resources.resource_map.resource_generator import ResourceGenerator class JsResourceGenerator(ResourceGenerator): type = 'js' @staticmethod def generate_object(task, definition): node_command = task.generator.env.NODE # FIXME: # We use this file from both our firmware build (waf version 1.8.x) and from our sdk build # (waf version 1.7.x) and the functionality of Configure::find_program has changed between # these two release. On waf 1.7.x, it returns a list, where in waf 1.8.x it gives us a # string. Flatten it into a string regardless of version. To fix this we should just # update our SDK waf as it's redistributed alongside this file. if len(node_command) == 1: node_command = node_command[0] script_node = task.generator.env.JS_TOOLING_SCRIPT bytecode = task.outputs[0].change_ext('.bytecode') bytecode.parent.mkdir() memory_usage_output = ( task.generator.bld.path.get_bld().make_node("{}_snapshot_size.json". format(task.generator.env.PLATFORM_NAME))) cmd = [node_command, script_node.abspath(), task.inputs[0].abspath(), bytecode.abspath(), memory_usage_output.abspath()] proc = Popen(cmd, stdout=PIPE, stderr=PIPE) out, err = proc.communicate() if proc.returncode != 0: task.generator.bld.fatal("JS compilation failed.\n" "STDOUT: {}\n" "STDERR: {}".format(out, err)) # Save bytecode computed size and max size for SDK memory report if task.generator.env.PLATFORM_NAME in task.generator.bld.all_envs: env = task.generator.bld.all_envs[task.generator.env.PLATFORM_NAME] with open(memory_usage_output.abspath(), 'r') as f: content = json.load(f) env.SNAPSHOT_SIZE = content['size'] env.SNAPSHOT_MAX = content['max'] with open(bytecode.abspath(), 'rb') as f: data = f.read() return ResourceObject(definition, data)