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graphengine/inc/framework/common/gflags_util.h

72 lines
2.4 KiB

/**
* Copyright 2019-2020 Huawei Technologies Co., Ltd
*
* 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.
*/
#ifndef INC_FRAMEWORK_COMMON_GFLAGS_UTIL_H_
#define INC_FRAMEWORK_COMMON_GFLAGS_UTIL_H_
#include <gflags/gflags.h>
#include <string>
namespace ge {
class GflagsUtils {
public:
static bool IsSetCommandTrue(const char *name) {
std::string out;
return gflags::GetCommandLineOption(name, &out) && out == "true";
}
///
/// @brief Determines whether the parameter is empty
/// @param name name parameter name
/// @return true if empty otherwise false
///
static bool IsSetCommandNotEmpty(const char *name) {
std::string out;
return gflags::GetCommandLineOption(name, &out) && !out.empty();
}
///
/// @brief Determines whether the parameter is not default
/// @param flag_name name parameter name
/// @return true if not default otherwise false
///
static bool IsCommandLineNotDefault(const char *flag_name) {
google::CommandLineFlagInfo info;
return GetCommandLineFlagInfo(flag_name, &info) && !info.is_default;
}
///
/// @brief Modify gflags to print help information
/// @param flags_h Pass in the self-defined help parameter, it is recommended to be FLAGS_h
/// @return void
///
static void ChangeHelpFlags(bool flags_h) {
if (flags_h || IsSetCommandTrue("help") || IsSetCommandTrue("helpfull") || IsSetCommandNotEmpty("helpon") ||
IsSetCommandNotEmpty("helpmatch") || IsSetCommandTrue("helppackage") || IsSetCommandTrue("helpxml")) {
gflags::SetCommandLineOption("help", "false");
gflags::SetCommandLineOption("helpfull", "false");
gflags::SetCommandLineOption("helpon", "");
gflags::SetCommandLineOption("helpmatch", "");
gflags::SetCommandLineOption("helppackage", "false");
gflags::SetCommandLineOption("helpxml", "false");
gflags::SetCommandLineOption("helpshort", "true");
}
}
};
} // namespace ge
#endif // INC_FRAMEWORK_COMMON_GFLAGS_UTIL_H_