diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/flags/usage_config.cc')
-rw-r--r-- | third_party/abseil_cpp/absl/flags/usage_config.cc | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/third_party/abseil_cpp/absl/flags/usage_config.cc b/third_party/abseil_cpp/absl/flags/usage_config.cc deleted file mode 100644 index ae2f548a570b..000000000000 --- a/third_party/abseil_cpp/absl/flags/usage_config.cc +++ /dev/null @@ -1,164 +0,0 @@ -// -// Copyright 2019 The Abseil Authors. -// -// 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 "absl/flags/usage_config.h" - -#include <functional> -#include <iostream> -#include <string> - -#include "absl/base/attributes.h" -#include "absl/base/config.h" -#include "absl/base/const_init.h" -#include "absl/base/thread_annotations.h" -#include "absl/flags/internal/path_util.h" -#include "absl/flags/internal/program_name.h" -#include "absl/strings/match.h" -#include "absl/strings/string_view.h" -#include "absl/strings/strip.h" -#include "absl/synchronization/mutex.h" - -extern "C" { - -// Additional report of fatal usage error message before we std::exit. Error is -// fatal if is_fatal argument to ReportUsageError is true. -ABSL_ATTRIBUTE_WEAK void AbslInternalReportFatalUsageError(absl::string_view) {} - -} // extern "C" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace flags_internal { - -namespace { - -// -------------------------------------------------------------------- -// Returns true if flags defined in the filename should be reported with -// -helpshort flag. - -bool ContainsHelpshortFlags(absl::string_view filename) { - // By default we only want flags in binary's main. We expect the main - // routine to reside in <program>.cc or <program>-main.cc or - // <program>_main.cc, where the <program> is the name of the binary - // (without .exe on Windows). - auto suffix = flags_internal::Basename(filename); - auto program_name = flags_internal::ShortProgramInvocationName(); - absl::string_view program_name_ref = program_name; -#if defined(_WIN32) - absl::ConsumeSuffix(&program_name_ref, ".exe"); -#endif - if (!absl::ConsumePrefix(&suffix, program_name_ref)) - return false; - return absl::StartsWith(suffix, ".") || absl::StartsWith(suffix, "-main.") || - absl::StartsWith(suffix, "_main."); -} - -// -------------------------------------------------------------------- -// Returns true if flags defined in the filename should be reported with -// -helppackage flag. - -bool ContainsHelppackageFlags(absl::string_view filename) { - // TODO(rogeeff): implement properly when registry is available. - return ContainsHelpshortFlags(filename); -} - -// -------------------------------------------------------------------- -// Generates program version information into supplied output. - -std::string VersionString() { - std::string version_str(flags_internal::ShortProgramInvocationName()); - - version_str += "\n"; - -#if !defined(NDEBUG) - version_str += "Debug build (NDEBUG not #defined)\n"; -#endif - - return version_str; -} - -// -------------------------------------------------------------------- -// Normalizes the filename specific to the build system/filesystem used. - -std::string NormalizeFilename(absl::string_view filename) { - // Skip any leading slashes - auto pos = filename.find_first_not_of("\\/"); - if (pos == absl::string_view::npos) return ""; - - filename.remove_prefix(pos); - return std::string(filename); -} - -// -------------------------------------------------------------------- - -ABSL_CONST_INIT absl::Mutex custom_usage_config_guard(absl::kConstInit); -ABSL_CONST_INIT FlagsUsageConfig* custom_usage_config - ABSL_GUARDED_BY(custom_usage_config_guard) = nullptr; - -} // namespace - -FlagsUsageConfig GetUsageConfig() { - absl::MutexLock l(&custom_usage_config_guard); - - if (custom_usage_config) return *custom_usage_config; - - FlagsUsageConfig default_config; - default_config.contains_helpshort_flags = &ContainsHelpshortFlags; - default_config.contains_help_flags = &ContainsHelppackageFlags; - default_config.contains_helppackage_flags = &ContainsHelppackageFlags; - default_config.version_string = &VersionString; - default_config.normalize_filename = &NormalizeFilename; - - return default_config; -} - -void ReportUsageError(absl::string_view msg, bool is_fatal) { - std::cerr << "ERROR: " << msg << std::endl; - - if (is_fatal) { - AbslInternalReportFatalUsageError(msg); - } -} - -} // namespace flags_internal - -void SetFlagsUsageConfig(FlagsUsageConfig usage_config) { - absl::MutexLock l(&flags_internal::custom_usage_config_guard); - - if (!usage_config.contains_helpshort_flags) - usage_config.contains_helpshort_flags = - flags_internal::ContainsHelpshortFlags; - - if (!usage_config.contains_help_flags) - usage_config.contains_help_flags = flags_internal::ContainsHelppackageFlags; - - if (!usage_config.contains_helppackage_flags) - usage_config.contains_helppackage_flags = - flags_internal::ContainsHelppackageFlags; - - if (!usage_config.version_string) - usage_config.version_string = flags_internal::VersionString; - - if (!usage_config.normalize_filename) - usage_config.normalize_filename = flags_internal::NormalizeFilename; - - if (flags_internal::custom_usage_config) - *flags_internal::custom_usage_config = usage_config; - else - flags_internal::custom_usage_config = new FlagsUsageConfig(usage_config); -} - -ABSL_NAMESPACE_END -} // namespace absl |