1f6555151e
For now (to prevent build breakages when this is submitted), duplicate flag values are allowed, but that will be disallowed once this change automerges everywhere. Bug: 286689485 Test: Treehugger Change-Id: I723340ff9751b61d33c4108b0cc2f90702a116c9
121 lines
4.3 KiB
Python
121 lines
4.3 KiB
Python
# Copyright (C) 2023 The Android Open Source Project
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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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# Partitions that get build system flag summaries
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_flag_partitions = [
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"product",
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"system",
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"system_ext",
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"vendor",
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]
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ALL = ["all"]
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PRODUCT = ["product"]
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SYSTEM = ["system"]
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SYSTEM_EXT = ["system_ext"]
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VENDOR = ["vendor"]
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_valid_types = ["NoneType", "bool", "list", "string", "int"]
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def flag(name, partitions, default):
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"Declare a flag."
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if not partitions:
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fail("At least 1 partition is required")
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if not name.startswith("RELEASE_"):
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fail("Release flag names must start with RELEASE_")
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if " " in name or "\t" in name or "\n" in name:
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fail("Flag names must not contain whitespace: \"" + name + "\"")
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for partition in partitions:
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if partition == "all":
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if len(partitions) > 1:
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fail("\"all\" can't be combined with other partitions: " + str(partitions))
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elif partition not in _flag_partitions:
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fail("Invalid partition: " + partition + ", allowed partitions: " +
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str(_flag_partitions))
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if type(default) not in _valid_types:
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fail("Invalid type of default for flag \"" + name + "\" (" + type(default) + ")")
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return {
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"name": name,
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"partitions": partitions,
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"default": default,
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}
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def value(name, value):
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"Define the flag value for a particular configuration."
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return {
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"name": name,
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"value": value,
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}
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def _format_value(val):
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"Format the starlark type correctly for make"
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if type(val) == "NoneType":
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return ""
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elif type(val) == "bool":
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return "true" if val else ""
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else:
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return val
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def release_config(all_flags, all_values):
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"Return the make variables that should be set for this release config."
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# Validate flags
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flag_names = []
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for flag in all_flags:
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if flag["name"] in flag_names:
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fail(flag["declared_in"] + ": Duplicate declaration of flag " + flag["name"])
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flag_names.append(flag["name"])
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# Record which flags go on which partition
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partitions = {}
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for flag in all_flags:
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for partition in flag["partitions"]:
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if partition == "all":
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for partition in _flag_partitions:
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partitions.setdefault(partition, []).append(flag["name"])
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else:
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partitions.setdefault(partition, []).append(flag["name"])
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# Validate values
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# TODO(joeo): Disallow duplicate values after we've split AOSP and vendor flags.
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values = {}
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for value in all_values:
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if value["name"] not in flag_names:
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fail(value["set_in"] + ": Value set for undeclared build flag: " + value["name"])
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values[value["name"]] = value
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# Collect values
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result = {
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"_ALL_RELEASE_FLAGS": sorted(flag_names),
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}
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for partition, names in partitions.items():
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result["_ALL_RELEASE_FLAGS.PARTITIONS." + partition] = names
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for flag in all_flags:
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if flag["name"] in values:
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val = values[flag["name"]]["value"]
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set_in = values[flag["name"]]["set_in"]
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if type(val) not in _valid_types:
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fail("Invalid type of value for flag \"" + flag["name"] + "\" (" + type(val) + ")")
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else:
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val = flag["default"]
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set_in = flag["declared_in"]
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val = _format_value(val)
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result[flag["name"]] = val
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result["_ALL_RELEASE_FLAGS." + flag["name"] + ".PARTITIONS"] = flag["partitions"]
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result["_ALL_RELEASE_FLAGS." + flag["name"] + ".DEFAULT"] = _format_value(flag["default"])
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result["_ALL_RELEASE_FLAGS." + flag["name"] + ".VALUE"] = val
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result["_ALL_RELEASE_FLAGS." + flag["name"] + ".DECLARED_IN"] = flag["declared_in"]
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result["_ALL_RELEASE_FLAGS." + flag["name"] + ".SET_IN"] = set_in
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return result
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