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72 lines
2.4 KiB
72 lines
2.4 KiB
/**
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* Copyright 2019-2020 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef INC_FRAMEWORK_COMMON_GFLAGS_UTIL_H_
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#define INC_FRAMEWORK_COMMON_GFLAGS_UTIL_H_
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#include <gflags/gflags.h>
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#include <string>
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namespace ge {
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class GflagsUtils {
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public:
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static bool IsSetCommandTrue(const char *name) {
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std::string out;
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return gflags::GetCommandLineOption(name, &out) && out == "true";
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}
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///
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/// @brief Determines whether the parameter is empty
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/// @param name name parameter name
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/// @return true if empty otherwise false
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///
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static bool IsSetCommandNotEmpty(const char *name) {
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std::string out;
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return gflags::GetCommandLineOption(name, &out) && !out.empty();
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}
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///
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/// @brief Determines whether the parameter is not default
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/// @param flag_name name parameter name
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/// @return true if not default otherwise false
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///
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static bool IsCommandLineNotDefault(const char *flag_name) {
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google::CommandLineFlagInfo info;
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return GetCommandLineFlagInfo(flag_name, &info) && !info.is_default;
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}
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///
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/// @brief Modify gflags to print help information
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/// @param flags_h Pass in the self-defined help parameter, it is recommended to be FLAGS_h
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/// @return void
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///
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static void ChangeHelpFlags(bool flags_h) {
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if (flags_h || IsSetCommandTrue("help") || IsSetCommandTrue("helpfull") || IsSetCommandNotEmpty("helpon") ||
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IsSetCommandNotEmpty("helpmatch") || IsSetCommandTrue("helppackage") || IsSetCommandTrue("helpxml")) {
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gflags::SetCommandLineOption("help", "false");
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gflags::SetCommandLineOption("helpfull", "false");
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gflags::SetCommandLineOption("helpon", "");
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gflags::SetCommandLineOption("helpmatch", "");
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gflags::SetCommandLineOption("helppackage", "false");
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gflags::SetCommandLineOption("helpxml", "false");
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gflags::SetCommandLineOption("helpshort", "true");
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}
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}
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};
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} // namespace ge
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#endif // INC_FRAMEWORK_COMMON_GFLAGS_UTIL_H_
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