Crafter.Build/implementations/main.cpp
Jorijn van der Graaf 8892154b28
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2026-07-23 01:24:42 +02:00

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C++

// SPDX-License-Identifier: LGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
#include <cstdio>
#if defined(_WIN32)
#include <io.h>
#ifndef STDOUT_FILENO
#define STDOUT_FILENO _fileno(stdout)
#endif
#define CRAFTER_MAIN_ISATTY _isatty
#else
#include <unistd.h>
#define CRAFTER_MAIN_ISATTY isatty
#endif
import std;
import Crafter.Build;
int main(int argc, char** argv) {
// Line-buffer stdout when it is not a terminal. Must run before any stdout
// write. When stdout is a regular file or pipe the C runtime defaults to
// full (block) buffering, so the append-only progress lines ("[N/M]") and
// the trailing "Built … steps" / "listening on port …" lines would sit in
// the buffer and never reach a redirected log — fatal for tooling that
// polls the log for a readiness marker, and worst under -r where the
// process blocks in its serve loop and never returns to flush. A TTY is
// already line-buffered and its in-place redraw path flushes explicitly, so
// only adjust when redirected.
if (CRAFTER_MAIN_ISATTY(STDOUT_FILENO) == 0) {
std::setvbuf(stdout, nullptr, _IOLBF, 0);
}
return Crafter::Run(argc, argv);
}