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common.cpp
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// Copyright (c) 2021-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <config/bitcoin-config.h> // IWYU pragma: keep
#include <clientversion.h>
#include <common/args.h>
#include <logging.h>
#include <node/interface_ui.h>
#include <tinyformat.h>
#include <util/fs.h>
#include <util/fs_helpers.h>
#include <util/result.h>
#include <util/string.h>
#include <util/time.h>
#include <util/translation.h>
#include <algorithm>
#include <string>
#include <vector>
using util::SplitString;
namespace init {
void AddLoggingArgs(ArgsManager& argsman)
{
argsman.AddArg("-debuglogfile=<file>", strprintf("Specify location of debug log file (default: %s). Relative paths will be prefixed by a net-specific datadir location. Pass -nodebuglogfile to disable writing the log to a file.", DEFAULT_DEBUGLOGFILE), ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
argsman.AddArg("-debug=<category>", "Output debug and trace logging (default: -nodebug, supplying <category> is optional). "
"If <category> is not supplied or if <category> is 1 or \"all\", output all debug logging. If <category> is 0 or \"none\", any other categories are ignored. Other valid values for <category> are: " + LogInstance().LogCategoriesString() + ". This option can be specified multiple times to output multiple categories.",
ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-debugexclude=<category>", "Exclude debug and trace logging for a category. Can be used in conjunction with -debug=1 to output debug and trace logging for all categories except the specified category. This option can be specified multiple times to exclude multiple categories. This takes priority over \"-debug\"", ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-logips", strprintf("Include IP addresses in debug output (default: %u)", DEFAULT_LOGIPS), ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-loglevel=<level>|<category>:<level>", strprintf("Set the global or per-category severity level for logging categories enabled with the -debug configuration option or the logging RPC. Possible values are %s (default=%s). The following levels are always logged: error, warning, info. If <category>:<level> is supplied, the setting will override the global one and may be specified multiple times to set multiple category-specific levels. <category> can be: %s.", LogInstance().LogLevelsString(), LogInstance().LogLevelToStr(BCLog::DEFAULT_LOG_LEVEL), LogInstance().LogCategoriesString()), ArgsManager::DISALLOW_NEGATION | ArgsManager::DISALLOW_ELISION | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-logtimestamps", strprintf("Prepend debug output with timestamp (default: %u)", DEFAULT_LOGTIMESTAMPS), ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-logthreadnames", strprintf("Prepend debug output with name of the originating thread (default: %u)", DEFAULT_LOGTHREADNAMES), ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-logsourcelocations", strprintf("Prepend debug output with name of the originating source location (source file, line number and function name) (default: %u)", DEFAULT_LOGSOURCELOCATIONS), ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-logtimemicros", strprintf("Add microsecond precision to debug timestamps (default: %u)", DEFAULT_LOGTIMEMICROS), ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-loglevelalways", strprintf("Always prepend a category and level (default: %u)", DEFAULT_LOGLEVELALWAYS), ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-printtoconsole", "Send trace/debug info to console (default: 1 when no -daemon. To disable logging to file, set -nodebuglogfile)", ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
argsman.AddArg("-shrinkdebugfile", "Shrink debug.log file on client startup (default: 1 when no -debug)", ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
}
void SetLoggingOptions(const ArgsManager& args)
{
LogInstance().m_print_to_file = !args.IsArgNegated("-debuglogfile");
LogInstance().m_file_path = AbsPathForConfigVal(args, args.GetPathArg("-debuglogfile", DEFAULT_DEBUGLOGFILE));
LogInstance().m_print_to_console = args.GetBoolArg("-printtoconsole", !args.GetBoolArg("-daemon", false));
LogInstance().m_log_timestamps = args.GetBoolArg("-logtimestamps", DEFAULT_LOGTIMESTAMPS);
LogInstance().m_log_time_micros = args.GetBoolArg("-logtimemicros", DEFAULT_LOGTIMEMICROS);
LogInstance().m_log_threadnames = args.GetBoolArg("-logthreadnames", DEFAULT_LOGTHREADNAMES);
LogInstance().m_log_sourcelocations = args.GetBoolArg("-logsourcelocations", DEFAULT_LOGSOURCELOCATIONS);
LogInstance().m_always_print_category_level = args.GetBoolArg("-loglevelalways", DEFAULT_LOGLEVELALWAYS);
fLogIPs = args.GetBoolArg("-logips", DEFAULT_LOGIPS);
}
util::Result<void> SetLoggingLevel(const ArgsManager& args)
{
if (args.IsArgSet("-loglevel")) {
for (const std::string& level_str : args.GetArgs("-loglevel")) {
if (level_str.find_first_of(':', 3) == std::string::npos) {
// user passed a global log level, i.e. -loglevel=<level>
if (!LogInstance().SetLogLevel(level_str)) {
return util::Error{strprintf(_("Unsupported global logging level %s=%s. Valid values: %s."), "-loglevel", level_str, LogInstance().LogLevelsString())};
}
} else {
// user passed a category-specific log level, i.e. -loglevel=<category>:<level>
const auto& toks = SplitString(level_str, ':');
if (!(toks.size() == 2 && LogInstance().SetCategoryLogLevel(toks[0], toks[1]))) {
return util::Error{strprintf(_("Unsupported category-specific logging level %1$s=%2$s. Expected %1$s=<category>:<loglevel>. Valid categories: %3$s. Valid loglevels: %4$s."), "-loglevel", level_str, LogInstance().LogCategoriesString(), LogInstance().LogLevelsString())};
}
}
}
}
return {};
}
util::Result<void> SetLoggingCategories(const ArgsManager& args)
{
if (args.IsArgSet("-debug")) {
// Special-case: if -debug=0/-nodebug is set, turn off debugging messages
const std::vector<std::string> categories = args.GetArgs("-debug");
if (std::none_of(categories.begin(), categories.end(),
[](std::string cat){return cat == "0" || cat == "none";})) {
for (const auto& cat : categories) {
if (!LogInstance().EnableCategory(cat)) {
return util::Error{strprintf(_("Unsupported logging category %s=%s."), "-debug", cat)};
}
}
}
}
// Now remove the logging categories which were explicitly excluded
for (const std::string& cat : args.GetArgs("-debugexclude")) {
if (!LogInstance().DisableCategory(cat)) {
return util::Error{strprintf(_("Unsupported logging category %s=%s."), "-debugexclude", cat)};
}
}
return {};
}
bool StartLogging(const ArgsManager& args)
{
if (LogInstance().m_print_to_file) {
if (args.GetBoolArg("-shrinkdebugfile", LogInstance().DefaultShrinkDebugFile())) {
// Do this first since it both loads a bunch of debug.log into memory,
// and because this needs to happen before any other debug.log printing
LogInstance().ShrinkDebugFile();
}
}
if (!LogInstance().StartLogging()) {
return InitError(strprintf(Untranslated("Could not open debug log file %s"),
fs::PathToString(LogInstance().m_file_path)));
}
if (!LogInstance().m_log_timestamps)
LogPrintf("Startup time: %s\n", FormatISO8601DateTime(GetTime()));
LogPrintf("Default data directory %s\n", fs::PathToString(GetDefaultDataDir()));
LogPrintf("Using data directory %s\n", fs::PathToString(gArgs.GetDataDirNet()));
// Only log conf file usage message if conf file actually exists.
fs::path config_file_path = args.GetConfigFilePath();
if (fs::exists(config_file_path)) {
LogPrintf("Config file: %s\n", fs::PathToString(config_file_path));
} else if (args.IsArgSet("-conf")) {
// Warn if no conf file exists at path provided by user
InitWarning(strprintf(_("The specified config file %s does not exist"), fs::PathToString(config_file_path)));
} else {
// Not categorizing as "Warning" because it's the default behavior
LogPrintf("Config file: %s (not found, skipping)\n", fs::PathToString(config_file_path));
}
// Log the config arguments to debug.log
args.LogArgs();
return true;
}
void LogPackageVersion()
{
std::string version_string = FormatFullVersion();
#ifdef DEBUG
version_string += " (debug build)";
#else
version_string += " (release build)";
#endif
LogPrintf(PACKAGE_NAME " version %s\n", version_string);
}
} // namespace init