rzup: add option to list available versions

[matthiasgeihs]

Is there an existing issue?

• I have searched the existing issues

Experiencing problems? Have you tried our Discord first?

• This is not a support question.

Motivation

sometimes i just want to check what are the versions available through rzup. for example, is there a new version?

Request

Add a command --list (or short, -l) that lists all available versions.

Solution

No response

Are you willing to help with this request?

Maybe... (I have elaborated on how above)

[linear]

ZKVM-535 `rzup`: add option to list available versions

[nuke-web3]

I see there is related tooling in

risc0/rzup/src/cli/check.rs

Lines 29 to 62 in e7986bf

	fn print_updates(updates: &[UpdateInfo]) -> Result<()> {
	// TODO: Check for rzup updates
	let mut stdout = StandardStream::stdout(ColorChoice::Always);
	for update in updates {
	if update.up_to_date {
	pretty_msg!(&mut stdout, true, None, &format!("{} - ", update.name));
	pretty_msg!(&mut stdout, true, Some(Color::Green), "Up to date ");
	pretty_msgln!(
	&mut stdout,
	false,
	None,
	format!(
	": {} ({})",
	update.current_version, update.current_published_at
	)
	);
	} else {
	pretty_msg!(&mut stdout, true, None, &format!("{} - ", update.name));
	pretty_msg!(&mut stdout, true, Some(Color::Yellow), "Update available ");
	pretty_msgln!(
	&mut stdout,
	false,
	None,
	format!(
	": {} ({}) -> {} ({})",
	update.current_version,
	update.current_published_at,
	update.latest_version,
	update.latest_published_at,
	)
	);
	}
	}

and

risc0/rzup/src/utils.rs

Lines 362 to 383 in e7986bf

	/// Checks for updates for the active toolchains and extensions and returns a list of update information.
	pub async fn get_updatable_active() -> Result<Vec<UpdateInfo>, RzupError> {
	let mut updates = Vec::new();
	if !is_extensions_installed()? {
	return Err(RzupError::Other(
	"No installed extensions detected. \n\nFor more information, try '--help'".to_string(),
	));
	}
	if !is_toolchains_installed()? {
	return Err(RzupError::Other(
	"No installed toolchains detected. \n\nFor more information, try '--help'".to_string(),
	));
	}
	updates.push(check_cargo_risczero_updates().await?);
	updates.push(check_rust_toolchain_updates().await?);
	updates.push(check_cpp_toolchain_updates().await?);
	Ok(updates)
	}

Seems like it could be relatively easy to impl a rzup check versions or rzup list --[all|remote] or some related command to do this.

[matthiasgeihs]

@nuke-web3 Thanks for the pointers.

Gave it a shot and opened PR #2409.

(Note: While implementing, noticed I was on an old version of rzup that didn't have check and show. Especially check is doing the most relevant thing for me here, which is checking for a new version. Not sure, if the list command is still needed in this case, but might still be worthwhile to have it?)