self_update 0.3.0

Self updates for standalone executables

self_update

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self_update provides updaters for updating rust executables in-place from various release distribution backends.

self_update = "0.3"

Usage

Update (replace) the current executable with the latest release downloaded from https://api.github.com/repos/jaemk/self_update/releases/latest

#[macro_use] extern crate self_update;

fn update() -> Result<(), Box<::std::error::Error>> {
    let target = self_update::get_target()?;
    let status = self_update::backends::github::UpdateLatest::configure()?
        .repo_owner("jaemk")
        .repo_name("self_update")
        .target(&target)
        .bin_name("self_update_example")
        .show_download_progress(true)
        .current_version(cargo_crate_version!())
        .build()?
        .update()?;
    println!("Update status: `v{}`!", status.version());
    Ok(())
}

Run the above example to see self_update in action: cargo run --example github

Separate utilities are also exposed:

extern crate self_update;

fn update() -> Result<(), Box<::std::error::Error>> {
    let target = self_update::get_target()?;
    let releases = self_update::backends::github::ReleaseList::configure()
        .repo_owner("jaemk")
        .repo_name("self_update")
        .with_target(&target)
        .build()?
        .fetch()?;
    println!("found releases:");
    println!("{:#?}\n", releases);

    // get the first available release
    let asset = releases[0]
        .asset_for(&target).unwrap();

    let tmp_dir = self_update::TempDir::new_in(::std::env::current_dir()?, "self_update")?;
    let tmp_tarball_path = tmp_dir.path().join(&asset.name);
    let tmp_tarball = ::std::fs::File::open(&tmp_tarball_path)?;

    self_update::Download::from_url(&asset.download_url)
        .download_to(&tmp_tarball)?;

    self_update::Extract::from_source(&tmp_tarball_path)
        .archive(self_update::ArchiveKind::Tar)
        .encoding(self_update::EncodingKind::Gz)
        .extract_into(&tmp_dir.path())?;

    let tmp_file = tmp_dir.path().join("replacement_tmp");
    let bin_name = "self_update_bin";
    let bin_path = tmp_dir.path().join(bin_name);
    self_update::Move::from_source(&bin_path)
        .replace_using_temp(&tmp_file)
        .to_dest(&::std::env::current_exe()?)?;

    Ok(())
}

License: MIT