sandboxed-api/contrib/libxls/example/main.cc
Christian Blichmann 51799f99ae Introduce a transitional logging utility library
Instead of calling `google::InitGoogleLogging()` directly, introduce an
indirection via a new utility library. After this change, Sandboxed API
should consistently use `sapi::InitLogging()` everywhere.

For now, `sapi::InitLogging()` simply calls its glog equivalent. However,
this enables us to migrate away from the gflags dependency and use Abseil
flags. Once a follow-up change lands, `sapi::InitLogging()` will instead
initialize the google logging library with flags defined from Aseil.

Later still, once Abseil releases logging, we can then drop the glog
dependency entirely.

PiperOrigin-RevId: 445363592
Change-Id: Ia23a7dc88b8ffe65a422ea4d5233bba7bdd1303a
2022-04-29 02:14:06 -07:00

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2.7 KiB
C++

// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <fcntl.h>
#include <unistd.h>
#include <cstdlib>
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
#include "absl/flags/flag.h"
#include "absl/flags/parse.h"
#include "contrib/libxls/sandboxed.h"
#include "contrib/libxls/utils/utils_libxls.h"
#include "sandboxed_api/util/logging.h"
ABSL_FLAG(uint32_t, sheet, 0, "sheet number");
int main(int argc, char* argv[]) {
std::string prog_name(argv[0]);
std::vector<char*> args = absl::ParseCommandLine(argc, argv);
sapi::InitLogging(argv[0]);
if (args.size() != 2) {
std::cerr << "Usage:\n " << prog_name << " INPUT\n";
return EXIT_FAILURE;
}
LibxlsSapiSandbox sandbox(args[1]);
if (!sandbox.Init().ok()) {
std::cerr << "Unable to start sandbox\n";
return EXIT_FAILURE;
}
absl::StatusOr<LibXlsWorkbook> wb = LibXlsWorkbook::Open(&sandbox, args[1]);
uint32_t nr_sheet = absl::GetFlag(FLAGS_sheet);
absl::StatusOr<LibXlsSheet> sheet = wb->OpenSheet(nr_sheet);
if (!sheet.ok()) {
std::cerr << "Unable to switch sheet: ";
std::cerr << sheet.status() << "\n";
return EXIT_FAILURE;
}
for (size_t row = 0; row < sheet->GetRowCount(); ++row) {
for (size_t col = 0; col < sheet->GetColCount(); ++col) {
absl::StatusOr<LibXlsCell> cell = sheet->GetCell(row, col);
if (!cell.ok()) {
std::cerr << "Unable to get cell: ";
std::cerr << cell.status() << "\n";
return EXIT_FAILURE;
}
switch (cell->type) {
case XLS_RECORD_NUMBER:
std::cout << std::setw(16) << std::get<double>(cell->value) << " | ";
break;
case XLS_RECORD_STRING:
std::cout << std::setw(16) << std::get<std::string>(cell->value)
<< " | ";
break;
case XLS_RECORD_BOOL:
std::cout << std::setw(16) << std::get<bool>(cell->value) << " | ";
break;
case XLS_RECORD_BLANK:
std::cout << std::setw(16) << " | ";
break;
case XLS_RECORD_ERROR:
std::cout << "error"
<< "\n";
break;
}
}
std::cout << "\n";
}
return EXIT_SUCCESS;
}