/**
 * npm-global upgrade strategy.
 *
 * Without `--yes`: prints the exact `npm i -g …` command and exits without
 * mutating anything. With `--yes`: runs the command directly.
 */
import type { UpgradeResult } from "./apply-binary.js";
import { type ReleaseInfo } from "./check.js";
export interface RunCommandResult {
    exitCode: number;
    stdout: string;
    stderr: string;
}
export interface UpgradeNpmOptions {
    currentVersion: string;
    /** Explicit tag like "v0.34.0" or "0.34.0". Defaults to the getLatest result. */
    version?: string;
    /** `--check`: report only, no action. */
    check?: boolean;
    /** `--yes`: run npm instead of printing the command. */
    yes?: boolean;
    /** Injection points. */
    getLatest?: (options?: {
        force?: boolean;
    }) => Promise<ReleaseInfo | null>;
    runCommand?: (command: string, args: string[]) => Promise<RunCommandResult>;
}
export type { UpgradeResult };
export declare function defaultRunCommand(command: string, args: string[]): Promise<RunCommandResult>;
export declare function upgradeNpmGlobal(options: UpgradeNpmOptions): Promise<UpgradeResult>;
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