rrdpit 0.1.2

RRDP IT: A disk to RPKI Delta Protocol tool.
Documentation 
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#[macro_use]
extern crate derive_more;
extern crate rrdpit;
extern crate uuid;

use std::fmt;
use std::path::PathBuf;
use uuid::Uuid;

use rrdpit::options::Options;
use rrdpit::rrdp::{RepoState, Snapshot};
use rrdpit::sync::crawl_disk;
use rrdpit::sync::RsyncUri;

fn main() {
    match Options::from_args() {
        Ok(options) => match sync(options) {
            Ok(()) => {}
            Err(e) => {
                eprintln!("{e}");
                ::std::process::exit(1);
            }
        },
        Err(e) => {
            eprintln!("{e}");
            ::std::process::exit(1);
        }
    }
}

fn snapshot(
    session: Uuid,
    serial: u64,
    source: &PathBuf,
    rsync: &RsyncUri,
) -> Result<Snapshot, Error> {
    let files = crawl_disk(source, rsync).map_err(Error::custom)?;
    Ok(Snapshot::new(session, serial, files))
}

fn sync(options: Options) -> Result<(), Error> {
    let state = match RepoState::reconstitute(options.https.clone(), options.target.clone()) {
        Ok(mut state) => {
            let snapshot = snapshot(
                state.session(),
                state.serial() + 1,
                &options.source,
                &options.rsync,
            )
            .map_err(Error::custom)?;
            state.apply(snapshot).map_err(Error::custom)?;
            state
        }
        Err(_) => {
            let snapshot = snapshot(Uuid::new_v4(), 1, &options.source, &options.rsync)
                .map_err(Error::custom)?;
            RepoState::new(snapshot, options.https.clone(), options.target.clone())
        }
    };

    state
        .save(options.max_deltas, options.clean)
        .map_err(Error::custom)
}

//------------ Error ---------------------------------------------------------
#[derive(Debug, Display)]
pub enum Error {
    #[display("{}", _0)]
    Custom(String),
}

impl Error {
    fn custom(e: impl fmt::Display) -> Self {
        Error::Custom(e.to_string())
    }
}

#[cfg(test)]
mod tests {
    use std::{fs::{self, File}, io::Write};

    use rrdpit::options::Options;
    use tempfile::tempdir;
    use uuid::Uuid;

    use crate::sync;

    #[test]
    fn test_max_deltas() {
        let source = tempdir().unwrap();
        let target = tempdir().unwrap();

        fs::create_dir(target.path().join(
            Uuid::new_v4().to_string()
        )).unwrap();

        for i in 1..25 {
            let mut file = File::create(
                source.path().join(format!("test{}", i))
            ).unwrap();
            file.write(b"test").unwrap();
            let options = Options {
                source: source.path().to_path_buf(),
                target: target.path().to_path_buf(),
                rsync: "rsync://example.org/rrdpit".into(),
                https: "https://example.org/rrdpit/".into(),
                clean: i > 10,
                max_deltas: 5,
            };
            sync(options).unwrap();
        }

        let paths = fs::read_dir(&target).unwrap();
        assert_eq!(2, paths.count());
    }
}