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// Copyright (c) 2010 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.
//
// This file declares util functions for setup project.
#include "chrome/installer/setup/setup_util.h"
#include "base/file_util.h"
#include "base/logging.h"
#include "base/string_util.h"
#include "chrome/installer/util/util_constants.h"
#include "courgette/courgette.h"
#include "third_party/bspatch/mbspatch.h"
int installer::ApplyDiffPatch(const FilePath& src,
const FilePath& patch,
const FilePath& dest) {
VLOG(1) << "Applying patch " << patch.value() << " to file " << src.value()
<< " and generating file " << dest.value();
// Try Courgette first. Courgette checks the patch file first and fails
// quickly if the patch file does not have a valid Courgette header.
courgette::Status patch_status =
courgette::ApplyEnsemblePatch(src.value().c_str(),
patch.value().c_str(),
dest.value().c_str());
if (patch_status == courgette::C_OK)
return 0;
VLOG(1) << "Failed to apply patch " << patch.value() << " using courgette.";
return ApplyBinaryPatch(src.value().c_str(), patch.value().c_str(),
dest.value().c_str());
}
Version* installer::GetMaxVersionFromArchiveDir(const FilePath& chrome_path) {
VLOG(1) << "Looking for Chrome version folder under " << chrome_path.value();
Version* version = NULL;
file_util::FileEnumerator version_enum(chrome_path, false,
file_util::FileEnumerator::DIRECTORIES);
// TODO(tommi): The version directory really should match the version of
// setup.exe. To begin with, we should at least DCHECK that that's true.
scoped_ptr<Version> max_version(Version::GetVersionFromString("0.0.0.0"));
bool version_found = false;
while (!version_enum.Next().empty()) {
file_util::FileEnumerator::FindInfo find_data = {0};
version_enum.GetFindInfo(&find_data);
VLOG(1) << "directory found: " << find_data.cFileName;
scoped_ptr<Version> found_version(
Version::GetVersionFromString(WideToASCII(find_data.cFileName)));
if (found_version.get() != NULL &&
found_version->CompareTo(*max_version.get()) > 0) {
max_version.reset(found_version.release());
version_found = true;
}
}
return (version_found ? max_version.release() : NULL);
}
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