Struct libherokubuildpack::buildpack_output::state::Stream

pub struct Stream<W: Write> { /* private fields */ }

This state is intended for streaming output from a process to the end user. It is started from a state::Section and finished back to a state::Section.

The BuildpackOutput<state::Stream<W>> implements std::io::Write, so you can stream from anything that accepts a std::io::Write.

use libherokubuildpack::buildpack_output::{BuildpackOutput, state::{Started, Section}};
use std::io::Write;

let mut output = BuildpackOutput::new(std::io::stdout())
    .start("Example Buildpack")
    .section("Ruby version");

install_ruby(output).finish();

fn install_ruby<W>(mut output: BuildpackOutput<Section<W>>) -> BuildpackOutput<Section<W>>
where W: Write + Send + Sync + 'static {
    let mut stream = output.step("Installing Ruby")
        .start_stream("Streaming stuff");

    write!(&mut stream, "...").unwrap();

    stream.finish()
}

Trait Implementations

impl<W: Debug + Write> Debug for Stream<W>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.