Function uninstall

atomic-agent/src/integrations/install.rs:439–483

Remove a previously installed integration, guided by its receipt. Files the user modified since install are kept (and reported). Settings entries are removed by `(target, hooks_key, command_prefix)` without needing the original package.

(agent: &str)

/// entries are removed by `(target, hooks_key, command_prefix)` without
/// needing the original package.
pub fn uninstall(agent: &str) -> AgentResult<UninstallOutcome> {
    let receipt = Receipt::load(agent)?.ok_or_else(|| AgentError::Integration {
        agent: agent.to_string(),
        reason: "not installed (no receipt found)".to_string(),
    })?;

    let mut removed = Vec::new();
    let mut kept_modified = Vec::new();

    for file in &receipt.files {
        if !file.dst.exists() {
            continue;
        }
        let current = hash_file(&file.dst)?;
        if current == file.blake3 {
            std::fs::remove_file(&file.dst)?;
            // Best-effort: drop the parent dir if we just emptied it.
            if let Some(parent) = file.dst.parent() {
                let _ = std::fs::remove_dir(parent);
            }
            removed.push(file.dst.clone());
        } else {
            kept_modified.push(file.dst.clone());
        }
    }

    let mut settings_hooks_removed = 0;
    for settings in &receipt.settings {
        let outcome = hooks_manifest::uninstall_prefixed(
            &settings.target,
            &settings.hooks_key,
            &settings.command_prefix,
        )?;
        settings_hooks_removed += outcome.removed;
    }

    Receipt::remove(agent)?;

    Ok(UninstallOutcome {
        agent: agent.to_string(),
        removed,
        kept_modified,
        settings_hooks_removed,
    })
}

enum Decision {
    Install,