Struct Update 

pub struct Update { /* private fields */ }

Wraps a ReleaseUpdate and redirects file descriptor 1 while it runs.

Before delegating to the inner update, fd 1 is pointed at the configured Sink; once the update returns (successfully or not) the original fd 1 is restored. Because the redirect happens at the descriptor level, output from spawned child processes and native code is diverted too.

Platform behavior

• Unix: fd 1 is duplicated and swapped via dup/dup2.
• Windows: the process’s standard-output handle is swapped via GetStdHandle/SetStdHandle (pointed at the NUL device or the standard-error handle). Rust’s std re-queries GetStdHandle on every write, so its output honors the swap for the duration of the update.
• Other platforms: redirection is unsupported, so the wrapped update runs unchanged (no redirect is applied).

Metadata

All metadata methods (including no_confirm, show_output, and show_download_progress) delegate to the wrapped update. Because a backend reads its own configuration when it runs, overriding those on the wrapper would not change the behavior of an arbitrarily deep composition, so this wrapper relies solely on the fd redirect to keep the update quiet.

Implementations

impl Update

pub fn configure() -> UpdateBuilder

Initialize a new Update builder.

pub fn sink(&self) -> Sink

The Sink fd 1 is redirected to while the wrapped update runs.

Trait Implementations

impl ReleaseUpdate for Update

fn get_latest_release(&self) -> Result<Release>

Fetch details of the latest release from the backend

fn get_latest_releases(&self, current_version: &str) -> Result<Vec<Release>>

Fetch details of the latest release from the backend

fn get_release_version(&self, ver: &str) -> Result<Release>

Fetch details of the release matching the specified version

fn current_version(&self) -> String

Current version of binary being updated

fn target(&self) -> String

Target platform the update is being performed for

fn target_version(&self) -> Option<String>

Target version optionally specified for the update

fn bin_name(&self) -> String

Name of the binary being updated

fn bin_install_path(&self) -> PathBuf

Installation path for the binary being updated

fn bin_path_in_archive(&self) -> String

Path of the binary to be extracted from release package

fn show_download_progress(&self) -> bool

Flag indicating if progress information shall be output when downloading a release

fn show_output(&self) -> bool

Flag indicating if process informative messages shall be output

fn no_confirm(&self) -> bool

Flag indicating if the user shouldn’t be prompted to confirm an update

fn progress_template(&self) -> String

fn progress_chars(&self) -> String

fn auth_token(&self) -> Option<String>

Authorisation token for communicating with backend

fn update(&self) -> Result<Status>

Display release information and update the current binary to the latest release, pending confirmation from the user

fn update_extended(&self) -> Result<UpdateStatus>

Same as update, but returns UpdateStatus.

fn identifier(&self) -> Option<String>

Optional identifier of determining the asset among multiple matches

fn api_headers(&self, auth_token: &Option<String>) -> Result<HeaderMap, Error>

Construct a header with an authorisation entry if an auth token is provided