folly/folly/logging/CustomLogFormatter.cpp

/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * 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
 *
 *     http://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 <folly/logging/CustomLogFormatter.h>

#include <algorithm>

#include <folly/Format.h>
#include <folly/logging/LogLevel.h>
#include <folly/logging/LogMessage.h>
#include <folly/portability/Time.h>

namespace {
LogLevel;
StringPiece;

StringPiece getGlogLevelName(LogLevel level) { … }

StringPiece getResetSequence(LogLevel level) { … }

StringPiece getColorSequence(LogLevel level) { … }

/**
 * Get base file name without extension.
 */
StringPiece getBaseNameNoExt(StringPiece baseName) { … }

struct FormatKeys { … };

/**
 * The first part of pairs in this array are the key names and the second part
 * of the pairs are the argument index for folly::format().
 *
 * NOTE: This array must be sorted by key name, since we use std::lower_bound
 * to search in it.
 *
 * TODO: Support including thread names and thread context info.
 */
constexpr std::array<FormatKeys, 13> formatKeys{ … };
constexpr size_t messageIndex = …;

} // namespace

namespace folly {

CustomLogFormatter::CustomLogFormatter(StringPiece format, bool colored)
    : … { … }

void CustomLogFormatter::parseFormatString(StringPiece input) { … }

std::string CustomLogFormatter::formatMessage(
    const LogMessage& message, const LogCategory* /* handlerCategory */) { … }
} // namespace folly