components/subresource_filter/tools/indexing_tool_main.cc

// Copyright 2018 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 "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "components/subresource_filter/tools/indexing_tool.h"

const char kHelpMsg[] = R"(
  subresource_indexing_tool <unindexed_ruleset_file> <output_file>

  subresource_indexing_tool will open the |unindexed_ruleset_file| and output
  an indexed version in |output_file|.
)";

void PrintHelp() {
  printf("%s\n\n", kHelpMsg);
}

int main(int argc, char* argv[]) {
  base::CommandLine::Init(argc, argv);
  const base::CommandLine& command_line =
      *base::CommandLine::ForCurrentProcess();
  base::CommandLine::StringVector args = command_line.GetArgs();

  if (args.size() < 2U) {
    PrintHelp();
    return 1;
  }

  base::FilePath unindexed_path(args[0]);
  base::FilePath indexed_path(args[1]);

  if (!subresource_filter::IndexAndWriteRuleset(unindexed_path, indexed_path)) {
    LOG(ERROR) << "There was an error. Be sure that the first argument points "
                  "to a valid unindexed file and that the second argument is "
                  "in an existing directory.";
  }
}