purple-ssh 3.15.16

Open-source terminal SSH manager that keeps ~/.ssh/config in sync with your cloud infra. Spin up a VM on AWS, GCP, Azure, Hetzner or 12 other cloud providers and it appears in your host list. Destroy it and the entry dims. Search hundreds of hosts, transfer files, manage Docker and Podman over SSH, sign Vault SSH certs. Rust TUI, MIT licensed.
Documentation 
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//! Provider configuration, label migration, validation messages and
//! region picker copy. Vault-related provider validation (role format)
//! lives here because it is surfaced by the provider form, not the
//! vault signing flow.

pub fn provider_removed(display_name: &str) -> String {
    format!(
        "Removed {} configuration. Synced hosts remain in your SSH config.",
        display_name
    )
}

pub fn label_invalid(reason: &str) -> String {
    format!("Invalid name: {}", reason)
}

pub const LABEL_MUST_DIFFER: &str = "The two names must be different.";

pub fn label_already_in_use(label: &str) -> String {
    format!(
        "A config named '{}' already exists for this provider.",
        label
    )
}

pub const LABEL_MIGRATION_FIELD_CURRENT: &str = " Name for your current config ";
pub const LABEL_MIGRATION_FIELD_NEW: &str = " Name for the new config ";

pub const EXPAND_TO_REMOVE_CONFIG: &str =
    "Expand the provider and pick a specific config to remove.";

pub fn provider_not_configured(display_name: &str) -> String {
    format!("{} is not configured. Nothing to remove.", display_name)
}

pub fn provider_configure_first(display_name: &str) -> String {
    format!("Configure {} first. Press Enter to set up.", display_name)
}

pub fn provider_saved_syncing(display_name: &str) -> String {
    format!("Saved {} configuration. Syncing...", display_name)
}

pub fn provider_saved(display_name: &str) -> String {
    format!("Saved {} configuration.", display_name)
}

pub fn no_stale_hosts_for(display_name: &str) -> String {
    format!("No stale hosts for {}.", display_name)
}

pub fn contains_control_chars(name: &str) -> String {
    format!("{} contains control characters.", name)
}

pub const TOKEN_FORMAT_AWS: &str = "Token format: AccessKeyId:SecretAccessKey";
pub const URL_REQUIRED_PROXMOX: &str = "URL is required for Proxmox VE.";
pub const PROJECT_REQUIRED_GCP: &str = "Project ID can't be empty. Set your GCP project ID.";
pub const COMPARTMENT_REQUIRED_OCI: &str =
    "Compartment can't be empty. Set your OCI compartment OCID.";
pub const REGIONS_REQUIRED_AWS: &str = "Select at least one AWS region.";
pub const ZONES_REQUIRED_SCALEWAY: &str = "Select at least one Scaleway zone.";
pub const SUBSCRIPTIONS_REQUIRED_AZURE: &str = "Enter at least one Azure subscription ID.";
pub const ALIAS_PREFIX_INVALID: &str =
    "Alias prefix can't contain spaces or pattern characters (*, ?, [, !).";
pub const USER_NO_WHITESPACE: &str = "User can't contain whitespace.";
pub const VAULT_ROLE_FORMAT: &str = "Vault SSH role must be in the form <mount>/sign/<role>.";

pub const PROVIDER_CONFIG_CHANGED_EXTERNALLY: &str =
    "Provider config changed externally. Press Esc and re-open to pick up changes.";
pub const PROVIDER_URL_REQUIRES_HTTPS: &str =
    "URL must start with https://. Toggle Verify TLS off for self-signed certificates.";
pub const PROVIDER_TOKEN_REQUIRED_GCP: &str =
    "Token can't be empty. Provide a service account JSON key file path or access token.";
pub const PROVIDER_TOKEN_REQUIRED_ORACLE: &str =
    "Token can't be empty. Provide the path to your OCI config file (e.g. ~/.oci/config).";

pub fn provider_token_required(display_name: &str) -> String {
    format!(
        "Token can't be empty. Grab one from your {} dashboard.",
        display_name
    )
}

pub fn azure_subscription_id_invalid(sub: &str) -> String {
    format!(
        "Invalid subscription ID '{}'. Expected UUID format \
         (e.g. 12345678-1234-1234-1234-123456789012).",
        sub
    )
}

// ── Region picker ───────────────────────────────────────────────────

pub fn regions_selected_count(count: usize, label: &str) -> String {
    let s = if count == 1 { "" } else { "s" };
    format!("{} {}{} selected.", count, label, s)
}