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#!/usr/bin/python3
# Copyright 2022 Huawei Cloud Computing Technology Co., Ltd.
#
# 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
import re
from sys import argv
from re import sub, match
input_file = argv[1]
param_file = argv[2]
magic_string = argv[3]
at_only = argv[4] == "true"
with open(param_file) as f:
param = json.loads(f.read())
# In many cases, CMake simply defines some variables (without any associated
# value). We handle this situation by assigning to the boolean True the empty
# string. Note that no False value should be found, because the right way to set
# a variable to False in the TARGETS file is to *do not mention* that variable
# at all.
for k, v in param.items():
if isinstance(v, bool):
param[k] = ""
with open(input_file) as i:
with open("out", "w") as o:
for line in i.readlines():
if x := re.search(
r"#(.*)(" + magic_string + r" )([ \t]*)([a-zA-Z0-9_]+)", line
):
# get the VAR
key = x.groups()[-1]
if key in param:
line = sub(
f"{x.group()[1:]}",
f"{x.groups()[0]}define {x.groups()[2]}{key} {param[key]}",
line,
)
else:
line = f"/* #undef {x.groups()[-1]} */\n"
if x := re.search(
r"#(.*)(" + magic_string + "01 )([ \t]*)([a-zA-Z0-9_]+)", line
):
# get the VAR
key = x.groups()[-1]
line = sub(
f"{x.group()[1:]}",
f"{x.groups()[0]}define {x.groups()[2]}{key} "
+ str(1 if key in param else 0),
line,
)
if match("#[ \t]*define", line):
if x := re.search(r"@([a-zA-Z0-9-_]+)@", line):
key = x.groups()[0]
line = sub(x.group(), param.get(key, ""), line)
if not at_only:
if x := re.search(r"\${([a-zA-Z0-9-_]+)}", line):
key = x.groups()[0]
line = sub(r"\${" + key + r"}", param.get(key, ""), line)
print(line, end="", file=o)
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