export type InstallKind = "global" | "linked" | "npx" | "project" | "unknown";
export interface ClassifyInstallOptions {
    installPath: string;
    npmRootGlobal: string | undefined;
    isSymlink: (path: string) => boolean;
}
export declare function classifyInstall(options: ClassifyInstallOptions): InstallKind;
export interface NpmSpawnerResult {
    exitCode: number;
    outputText: string;
}
export type NpmSpawner = (command: string, args: readonly string[]) => Promise<NpmSpawnerResult>;
export interface NpmRunResult {
    exitCode: number;
    sawEacces: boolean;
    outputText: string;
}
export interface RunNpmInstallOptions {
    packageName: string;
    version: string;
    npmBin: string;
    spawner: NpmSpawner;
}
export declare function runNpmInstallGlobal(options: RunNpmInstallOptions): Promise<NpmRunResult>;
export declare function detectInstallPath(cliMetaUrl: string): string;
export type NpmRootRunner = (command: string, args: readonly string[]) => string;
export declare function detectNpmRootGlobal(npmBin: string, runner: NpmRootRunner): string | undefined;
export declare function detectIsSymlink(filePath: string): boolean;
export declare function createDefaultNpmSpawner(): NpmSpawner;
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