blob: 0c73357e93ad3076243d394df6d46d89499abe6e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "fuchsia/base/config_reader.h"
#include "base/files/file_util.h"
#include "base/json/json_reader.h"
#include "base/logging.h"
#include "base/no_destructor.h"
namespace cr_fuchsia {
namespace {
base::Optional<base::Value> ReadPackageConfig() {
constexpr char kConfigPath[] = "/config/data/config.json";
base::FilePath path(kConfigPath);
if (!base::PathExists(path)) {
LOG(WARNING) << "Config file doesn't exist: " << path.value();
return base::nullopt;
}
std::string file_content;
bool loaded = base::ReadFileToString(path, &file_content);
if (!loaded) {
LOG(WARNING) << "Couldn't read config file: " << path.value();
return base::nullopt;
}
base::JSONReader::ValueWithError parsed =
base::JSONReader::ReadAndReturnValueWithError(file_content);
CHECK(parsed.value) << "Failed to parse " << path.value() << ": "
<< parsed.error_message;
CHECK(parsed.value->is_dict())
<< "Config is not a JSON dictionary: " << path.value();
return std::move(parsed.value);
}
} // namespace
const base::Optional<base::Value>& LoadPackageConfig() {
// Package configurations do not change at run-time, so read the configuration
// on the first call and cache the result.
static base::NoDestructor<base::Optional<base::Value>> config(
ReadPackageConfig());
return *config;
}
} // namespace cr_fuchsia
|
