import type { ConfigSectionAdded, MigrationItem } from "../types/migration.js";
export interface UpdateOptions {
    dryRun?: boolean;
    force?: boolean;
    skipAll?: boolean;
    createNew?: boolean;
    allowDowngrade?: boolean;
    migrate?: boolean;
}
/**
 * Load update.skip paths from .trellis/config.yaml
 *
 * Parses simple YAML structure:
 *   update:
 *     skip:
 *       - path1
 *       - path2
 *
 * @internal Exported for testing only
 */
export declare function loadUpdateSkipPaths(cwd: string): string[];
/**
 * Extract a "section" from a config.yaml-style template by sectionHeading.
 *
 * A section is delimited by `#---...---` separator lines (the same pattern
 * used in the bundled `config.yaml` template). The first line inside the
 * separator block whose `# ` content matches `sectionHeading` identifies the
 * section; the section spans from that opening separator block through the
 * line preceding the next `#---` separator block (or EOF).
 *
 * Returns the extracted text including its leading separator block, or `null`
 * when no matching section is found.
 *
 * @internal Exported for testing only.
 */
export declare function extractConfigSection(template: string, sectionHeading: string): string | null;
/**
 * Apply additive config.yaml sections introduced between two versions.
 *
 * Walks the supplied entries, dedupes by `file+sentinel`, and for each unique
 * entry: if the user file exists and lacks the sentinel, extracts the named
 * section from `templateContent` and appends it. Idempotent — re-running the
 * step on a file that already contains the sentinel is a no-op.
 *
 * @internal Exported for testing only.
 */
export declare function applyConfigSectionsAdded(entries: ConfigSectionAdded[], cwd: string, bundledTemplates: Map<string, string>): {
    appended: number;
};
/**
 * Check if a path should be excluded from backup
 * @internal Exported for testing only
 */
export declare function shouldExcludeFromBackup(relativePath: string): boolean;
/**
 * Clean up empty directories after file migration
 * Recursively removes empty parent directories up to .trellis root
 */
/** @internal Exported for testing only */
export declare function cleanupEmptyDirs(cwd: string, dirPath: string): void;
/**
 * Sort migrations for safe execution order
 * - rename-dir with deeper paths first (to handle nested directories)
 * - rename-dir before rename/delete
 */
/** @internal Exported for testing only */
export declare function sortMigrationsForExecution(migrations: MigrationItem[]): MigrationItem[];
/**
 * Main update command
 */
export declare function update(options: UpdateOptions): Promise<void>;
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