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// Copyright Epic Games, Inc. All Rights Reserved.
#include "run_cmd.h"
#include <zencore/filesystem.h>
#include <zencore/fmtutils.h>
#include <zencore/logging.h>
#include <zencore/process.h>
#include <zencore/string.h>
#include <zencore/timer.h>
using namespace std::literals;
#define ZEN_COLOR_BLACK "\033[0;30m"
#define ZEN_COLOR_RED "\033[0;31m"
#define ZEN_COLOR_GREEN "\033[0;32m"
#define ZEN_COLOR_YELLOW "\033[0;33m"
#define ZEN_COLOR_BLUE "\033[0;34m"
#define ZEN_COLOR_MAGENTA "\033[0;35m"
#define ZEN_COLOR_CYAN "\033[0;36m"
#define ZEN_COLOR_WHITE "\033[0;37m"
#define ZEN_BRIGHT_COLOR_BLACK "\033[1;30m"
#define ZEN_BRIGHT_COLOR_RED "\033[1;31m"
#define ZEN_BRIGHT_COLOR_GREEN "\033[1;32m"
#define ZEN_BRIGHT_COLOR_YELLOW "\033[1;33m"
#define ZEN_BRIGHT_COLOR_BLUE "\033[1;34m"
#define ZEN_BRIGHT_COLOR_MAGENTA "\033[1;35m"
#define ZEN_BRIGHT_COLOR_CYAN "\033[1;36m"
#define ZEN_BRIGHT_COLOR_WHITE "\033[1;37m"
#define ZEN_COLOR_RESET "\033[0m"
namespace zen {
RunCommand::RunCommand()
{
m_Options.add_options()("h,help", "Print help");
m_Options.add_option("", "n", "count", "Number of times to run command", cxxopts::value(m_RunCount), "<count>");
m_Options.add_option("", "t", "time", "How long to run command(s) for", cxxopts::value(m_RunTime), "<seconds>");
m_Options.add_option("",
"",
"basepath",
"Where to run command. Each run will execute in its own numbered subdirectory below this directory. Additionally, "
"stdout will be redirected to a file in the provided directory",
cxxopts::value(m_BaseDirectory),
"<path>");
m_Options.add_option("",
"",
"max-dirs",
"Number of base directories to retain on rotation",
cxxopts::value(m_MaxBaseDirectoryCount),
"<count>");
}
RunCommand::~RunCommand()
{
}
void
RunCommand::Run(const ZenCliOptions& GlobalOptions, int argc, char** argv)
{
if (!ParseOptions(argc, argv))
{
return;
}
// Validate arguments
if (GlobalOptions.PassthroughArgV.empty() || GlobalOptions.PassthroughArgV[0].empty())
throw OptionParseException("No command specified. The command to run is passed in after a double dash ('--') on the command line",
m_Options.help());
if (m_RunCount < 0)
throw OptionParseException(fmt::format("'--count' ('{}') is invalid", m_RunCount), m_Options.help());
if (m_RunTime < -1 || m_RunTime == 0)
throw OptionParseException(fmt::format("'--time' ('{}') is invalid", m_RunTime), m_Options.help());
if (m_MaxBaseDirectoryCount < 0)
throw OptionParseException(fmt::format("'--max-dirs' ('{}') is invalid", m_MaxBaseDirectoryCount), m_Options.help());
if (m_RunTime > 0 && m_RunCount > 0)
throw OptionParseException(fmt::format("'--time' ('{}') conflicts with '--count' ('{}') ", m_RunTime, m_RunCount),
m_Options.help());
if (m_RunCount == 0)
m_RunCount = 1;
std::filesystem::path BaseDirectory;
if (!m_BaseDirectory.empty())
{
BaseDirectory = m_BaseDirectory;
if (m_MaxBaseDirectoryCount)
{
RotateDirectories(BaseDirectory, m_MaxBaseDirectoryCount);
CreateDirectories(BaseDirectory);
}
else
{
CleanDirectory(BaseDirectory, /*ForceRemoveReadOnlyFiles*/ false);
}
}
bool TimedRun = false;
auto CommandDeadlineTime = std::chrono::system_clock::now();
if (m_RunTime > 0)
{
m_RunCount = 1'000'000;
TimedRun = true;
CommandDeadlineTime += std::chrono::seconds(m_RunTime);
}
struct RunResults
{
int ExitCode = 0;
std::chrono::duration<long, std::milli> Duration{};
};
std::vector<RunResults> Results;
int ErrorCount = 0;
std::filesystem::path ExecutablePath = SearchPathForExecutable(GlobalOptions.PassthroughArgV[0]);
std::string CommandArguments = GlobalOptions.PassthroughArgs;
for (int i = 0; i < m_RunCount; ++i)
{
std::filesystem::path RunDir;
if (!BaseDirectory.empty())
{
RunDir = BaseDirectory / IntNum(i + 1).c_str();
CreateDirectories(RunDir);
}
Stopwatch Timer;
CreateProcOptions ProcOptions;
if (!RunDir.empty())
{
ProcOptions.WorkingDirectory = &RunDir;
ProcOptions.StdoutFile = RunDir / "stdout.txt";
}
fmt::print(ZEN_BRIGHT_COLOR_WHITE "run #{}" ZEN_COLOR_RESET ": {}\n", i + 1, GlobalOptions.PassthroughCommandLine);
ProcessHandle Proc;
Proc.Initialize(CreateProc(ExecutablePath, GlobalOptions.PassthroughCommandLine, ProcOptions));
if (!Proc.IsValid())
{
throw std::runtime_error(fmt::format("failed to launch '{}'", ExecutablePath));
}
int ExitCode = Proc.WaitExitCode();
auto EndTime = std::chrono::system_clock::now();
if (ExitCode)
++ErrorCount;
Results.emplace_back(RunResults{.ExitCode = ExitCode, .Duration = std::chrono::milliseconds(Timer.GetElapsedTimeMs())});
if (TimedRun)
{
if (EndTime >= CommandDeadlineTime)
{
m_RunCount = i + 1;
break;
}
}
}
fmt::print("{:>5} {:>3} {:>6}\n", "run", "rc", "time");
int i = 0;
for (const auto& Entry : Results)
{
fmt::print("{:5} {:3} {:>6}\n", ++i, Entry.ExitCode, NiceTimeSpanMs(Entry.Duration.count()));
}
if (ErrorCount)
{
fmt::print("run complete ({}/{} failed)\n", ErrorCount, m_RunCount);
}
else
{
fmt::print("run complete, no error exit code\n", m_RunCount);
}
}
} // namespace zen
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