rusht 1.1.0

Shell commands written in Rust
Documentation 
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use ::log::debug;

use crate::common::{get_first_match_or_all, LineReader, LineWriter};
use crate::filter::FilterArgs;

//TODO @mverleg: pattern {} in cmd!
//TODO @mverleg: parallel?
pub async fn filter(args: FilterArgs, reader: &mut impl LineReader, writer: &mut impl LineWriter) {
    let expect_success = !args.invert;
    let base_task = args.cmd.clone().into_task();
    while let Some(line) = reader.read_line().await {
        let arg = get_first_match_or_all(&args.by, line);
        let mut task = base_task.clone();
        task.push_arg(arg);
        let status = task.execute_sync(false);
        if expect_success == status.is_ok() {
            debug!(
                "keep line {} after task {} (code: {})",
                line,
                task.as_cmd_str(),
                status.code()
            );
            writer.write_line(line).await;
        } else {
            debug!(
                "discard line {} after task {} (code: {})",
                line,
                task.as_cmd_str(),
                status.code()
            );
        }
    }
}