cmake.rs - Use a proper generator under CLion

cmake.rs

// [build] rustc -O cmake.rs
// cf. https://youtrack.jetbrains.com/issue/CPP-188#comment=27-899992

use std::env::args;
use std::fs::OpenOptions;
use std::io::Write;
use std::path::Path;
use std::process::Command;

fn main() {
  let mut command = Command::new ("C:/spool/msys64/mingw64/bin/cmake.exe");
  command.env ("PATH", "C:/spool/msys64/usr/bin;C:/spool/msys64/mingw64/bin");

  let mut log = match OpenOptions::new().append (true) .open (&Path::new (r"c:\spool\bin\cmake.log")) {
    Ok (file) => file, Err (err) => panic! ("Can't open the log file: {}", err)};

  let _ = writeln! (log, "--- Another run -------");

  let mut generator_override = true;

  for arg in args().skip (1) {
    let _ = writeln! (log, "Got an arg: {}", arg);
    if arg == "--build" {generator_override = false}
    command.arg (arg);}

  if generator_override {
    command.arg ("-GMSYS Makefiles");}  // Override CLion macabre silliness.

  let status = command.status().expect ("!cmake");
  std::process::exit (status.code().expect ("!status"));}