cmake/Source/cmPlistParser.cxx
2023-12-07 09:12:54 +01:00

34 lines
941 B
C++

/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmPlistParser.h"
#include <cm3p/json/reader.h>
#include <cm3p/json/value.h>
#include "cmUVProcessChain.h"
#include "cmUVStream.h"
cm::optional<Json::Value> cmParsePlist(const std::string& filename)
{
cmUVProcessChainBuilder builder;
builder.AddCommand(
{ "/usr/bin/plutil", "-convert", "json", "-o", "-", filename });
builder.SetBuiltinStream(cmUVProcessChainBuilder::Stream_OUTPUT);
auto chain = builder.Start();
chain.Wait();
auto const& status = chain.GetStatus(0);
if (status.ExitStatus != 0) {
return cm::nullopt;
}
Json::Reader reader;
Json::Value value;
cmUVPipeIStream outputStream(chain.GetLoop(), chain.OutputStream());
if (!reader.parse(outputStream, value)) {
return cm::nullopt;
}
return cm::optional<Json::Value>(value);
}