Function run_command

crates/cli/src/tasks/cpp.rs:13–32

Execute a command in a working directory and verify it succeeds. On Windows, commands are wrapped in `cmd /C` to support `.bat` and `.cmd` files (e.g., `emcc.bat`, `emcmake.cmd`), which don't work with direct execution. Returns an error if the command fails (non-zero exit code).

(prog: &str, args: &[S], cwd: &Path)

///
/// Returns an error if the command fails (non-zero exit code).
fn run_command<S: AsRef<str>>(prog: &str, args: &[S], cwd: &Path) -> anyhow::Result<()> {
    #[cfg(windows)]
    {
        let mut pieces: Vec<String> = Vec::with_capacity(1 + args.len());
        pieces.push(prog.to_string());
        pieces.extend(args.iter().map(|s| s.as_ref().to_string()));
        duct::cmd("cmd", std::iter::once("/C").chain(pieces.iter().map(String::as_str)))
            .dir(cwd)
            .run()
            .with_context(|| format!("failed running `{prog}`"))?;
    }
    #[cfg(not(windows))]
    {
        duct::cmd(prog, args.iter().map(|s| s.as_ref()))
            .dir(cwd)
            .run()
            .with_context(|| format!("failed running `{prog}`"))?;
    }
    Ok(())
}

pub(crate) fn build_cpp(project_path: &Path, build_debug: bool) -> anyhow::Result<PathBuf> {
    // Verify required tools are in PATH