Enum Downloader 

pub enum Downloader {
    Curl,
    Wget,
    PowerShell,
}

A program that can move bytes off a URL.

Variants

Curl

curl, which is on every Unix we support and on Windows since 1803.

Wget

wget, which is what a minimal Linux image has when it has one of the two.

PowerShell

PowerShell’s Invoke-WebRequest, which is the answer on a Windows that predates the bundled curl and on one where it was removed.

Implementations

impl Downloader

pub const ORDER: [Downloader; 3]

The order they are tried in, which is section 13.8’s order.

pub const fn program(self) -> &'static str

The program to run.

pub fn argv(self, url: &str, into: &Path) -> Vec<String>

The command line that downloads url to into.

Quiet, because a compiler driver that prints a progress bar is printing it into a build log that nobody is watching, and loud about failures, because the message a downloader writes is the only thing that says whether the URL was wrong or the network was.

Trait Implementations

impl Clone for Downloader

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Downloader

impl Debug for Downloader

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

Formats the value using the given formatter.

impl Eq for Downloader

impl PartialEq for Downloader

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Downloader