Crafter.Build/implementations/main.cpp

/*
Crafter® Build
Copyright (C) 2026 Catcrafts®
Catcrafts.net

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License version 3.0 as published by the Free Software Foundation;

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
*/

#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);
}