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
|
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/variations/variations_crash_keys_chromeos.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/strings/strcat.h"
#include "base/strings/string_number_conversions.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/thread_pool.h"
namespace variations {
namespace {
// Path where we put variations in cryptohome.
constexpr char kCrashVariationsFileName[] = ".variations-list.txt";
void WriteVariationsToFile(ExperimentListInfo info) {
std::string combined_string = base::StrCat(
{kNumExperimentsKey, "=", base::NumberToString(info.num_experiments),
"\n", kExperimentListKey, "=", info.experiment_list, "\n"});
base::FilePath path = base::PathService::CheckedGet(base::DIR_HOME);
if (path == base::FilePath("/")) {
// Fallback to /home/chronos if DIR_HOME is not overridden and
// no user has signed in.
path = base::FilePath("/home/chronos");
}
path = path.Append(kCrashVariationsFileName);
if (!base::WriteFile(path, combined_string)) {
VLOG(1) << "Failed to write " << path.value();
}
}
} // namespace
void ReportVariationsToChromeOs(scoped_refptr<base::SequencedTaskRunner> runner,
ExperimentListInfo info) {
// On a thread in the background, write variants to a file.
runner->PostTask(FROM_HERE, base::BindOnce(&WriteVariationsToFile, info));
}
} // namespace variations
|
