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simplewallet: Use default log file name when executable's file path is unknown

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Default to "simplewallet.log" in current directory when file path isn't
obtained from epee.

In this situation previously, it defaulted to the file name of ".log"
("" + ".log") in the current directory.
(Thanks to @sammy007 for reporting bug.)

An earlier version yet used "" + "/" + ".log" = "/.log", which resulted
in silently not logging in most cases, due to lack of permission.

Test:
  PATH=$PATH:</path/to/simplewallet/folder> && simplewallet --wallet-file /dev/null

This results in epee not finding the executable's file path, so
simplewallet will now use a default log filename.
This commit is contained in:
warptangent 2015-08-16 18:16:20 -07:00
parent b5b0f0857a
commit 7c4d6f1dc6
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GPG Key ID: 0E490BEBFBE4E92D
1 changed files with 21 additions and 3 deletions
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24
src/simplewallet/simplewallet.cpp
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@ -1815,8 +1815,23 @@ int main(int argc, char* argv[])
command_line::add_arg(desc_params, arg_log_level);
bf::path default_log {log_space::log_singletone::get_default_log_folder()};
default_log /= log_space::log_singletone::get_default_log_file();
std::cout << sw::tr("default_log: ") << default_log << ENDL;
std::string log_file_name = log_space::log_singletone::get_default_log_file();
if (log_file_name.empty())
{
// Sanity check: File path should also be empty if file name is. If not,
// this would be a problem in epee's discovery of current process's file
// path.
if (! default_log.empty())
{
fail_msg_writer() << sw::tr("Unexpected empty log file name in presence of non-empty file path");
return false;
}
// epee didn't find path to executable from argv[0], so use this default file name.
log_file_name = "simplewallet.log";
// The full path will use cwd because epee also returned an empty default log folder.
}
default_log /= log_file_name;
command_line::add_arg(desc_params, arg_log_file, default_log.string());
command_line::add_arg(desc_params, arg_restore_deterministic_wallet );
@ -1861,7 +1876,9 @@ int main(int argc, char* argv[])
return 0;
// log_file_path
// default: <simplewallet_path>/simplewallet.log
// default: < argv[0] directory >/simplewallet.log
// so if ran as "simplewallet" (no path), log file will be in cwd
//
// if log-file argument given:
// absolute path
// relative path: relative to cwd
@ -1884,6 +1901,7 @@ int main(int argc, char* argv[])
if(command_line::has_arg(vm, arg_log_level))
log_level = command_line::get_arg(vm, arg_log_level);
LOG_PRINT_L0("Setting log level = " << log_level);
LOG_PRINT_L0(sw::tr("default_log: ") << default_log.string());
message_writer(epee::log_space::console_color_white, true) << boost::format(sw::tr("Logging at log level %d to %s")) %
log_level % log_file_path.string();
log_space::get_set_log_detalisation_level(true, log_level);