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70 lines
2.8 KiB
Python
70 lines
2.8 KiB
Python
# Copyright 2024 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import json
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from subprocess import Popen, PIPE
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from resources.types.resource_object import ResourceObject
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from resources.resource_map.resource_generator import ResourceGenerator
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class JsResourceGenerator(ResourceGenerator):
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type = 'js'
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@staticmethod
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def generate_object(task, definition):
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node_command = task.generator.env.NODE
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# FIXME:
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# We use this file from both our firmware build (waf version 1.8.x) and from our sdk build
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# (waf version 1.7.x) and the functionality of Configure::find_program has changed between
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# these two release. On waf 1.7.x, it returns a list, where in waf 1.8.x it gives us a
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# string. Flatten it into a string regardless of version. To fix this we should just
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# update our SDK waf as it's redistributed alongside this file.
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if len(node_command) == 1:
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node_command = node_command[0]
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script_node = task.generator.env.JS_TOOLING_SCRIPT
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bytecode = task.outputs[0].change_ext('.bytecode')
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bytecode.parent.mkdir()
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memory_usage_output = (
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task.generator.bld.path.get_bld().make_node("{}_snapshot_size.json".
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format(task.generator.env.PLATFORM_NAME)))
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cmd = [node_command,
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script_node.abspath(),
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task.inputs[0].abspath(),
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bytecode.abspath(),
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memory_usage_output.abspath()]
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proc = Popen(cmd, stdout=PIPE, stderr=PIPE)
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out, err = proc.communicate()
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if proc.returncode != 0:
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task.generator.bld.fatal("JS compilation failed.\n"
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"STDOUT: {}\n"
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"STDERR: {}".format(out, err))
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# Save bytecode computed size and max size for SDK memory report
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if task.generator.env.PLATFORM_NAME in task.generator.bld.all_envs:
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env = task.generator.bld.all_envs[task.generator.env.PLATFORM_NAME]
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with open(memory_usage_output.abspath(), 'r') as f:
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content = json.load(f)
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env.SNAPSHOT_SIZE = content['size']
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env.SNAPSHOT_MAX = content['max']
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with open(bytecode.abspath(), 'rb') as f:
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data = f.read()
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return ResourceObject(definition, data)
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