mise 2026.4.11

The front-end to your dev env
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use color_eyre::eyre::{Result, bail};

use crate::cli::args::ToolArg;
use crate::config::Config;
use crate::toolset::ToolRequest;
use crate::ui::multi_progress_report::MultiProgressReport;

/// Gets the latest available version for a plugin
///
/// Supports prefixes such as `node@20` to get the latest version of node 20.
#[derive(Debug, clap::Args)]
#[clap(verbatim_doc_comment, after_long_help = AFTER_LONG_HELP)]
pub struct Latest {
    /// Tool to get the latest version of
    #[clap(value_name = "TOOL@VERSION")]
    tool: ToolArg,

    /// The version prefix to use when querying the latest version
    /// same as the first argument after the "@"
    /// used for asdf compatibility
    #[clap(hide = true)]
    asdf_version: Option<String>,

    /// Show latest installed instead of available version
    #[clap(short, long)]
    installed: bool,
}

impl Latest {
    pub async fn run(self) -> Result<()> {
        let config = Config::get().await?;
        let mut prefix = match self.tool.tvr {
            None => self.asdf_version,
            Some(ToolRequest::Version { version, .. }) => Some(version),
            _ => bail!("invalid version: {}", self.tool.style()),
        };

        let backend = self.tool.ba.backend()?;
        let mpr = MultiProgressReport::get();
        if let Some(plugin) = backend.plugin() {
            plugin.ensure_installed(&config, &mpr, false, false).await?;
        }
        if let Some(v) = prefix {
            prefix = Some(config.resolve_alias(&backend, &v).await?);
        }

        let latest_version = if self.installed {
            backend.latest_installed_version(prefix)?
        } else {
            backend.latest_version(&config, prefix).await?
        };
        if let Some(version) = latest_version {
            miseprintln!("{}", version);
        }
        Ok(())
    }
}

static AFTER_LONG_HELP: &str = color_print::cstr!(
    r#"<bold><underline>Examples:</underline></bold>

    $ <bold>mise latest node@20</bold>  # get the latest version of node 20
    20.0.0

    $ <bold>mise latest node</bold>     # get the latest stable version of node
    20.0.0
"#
);