import type { Runner } from "../internals/proc.js";
import { type CertEntry, type GpuInfo, type HostAdapter, type VdiInfo } from "./base.js";
/**
 * Linux host adapter (implemented, fixture-tested, not smoke-tested on this box).
 * Trust-store matching is filename-based across the standard anchor dirs (no
 * openssl dependency); hardware facts come from /proc with runner fallbacks.
 */
export declare class LinuxAdapter implements HostAdapter {
    private readonly run;
    private readonly env;
    /** Override the trust-store anchor dirs (tests); defaults to the system set. */
    private readonly anchorDirs;
    /** Override consolidated system CA bundles (tests); defaults to standard paths. */
    private readonly caBundlePaths;
    readonly platform: "linux";
    readonly verified = true;
    constructor(run: Runner, env: NodeJS.ProcessEnv, 
    /** Override the trust-store anchor dirs (tests); defaults to the system set. */
    anchorDirs?: readonly string[], 
    /** Override consolidated system CA bundles (tests); defaults to standard paths. */
    caBundlePaths?: readonly string[]);
    trustStoreCerts(pattern: string): Promise<CertEntry[]>;
    trustStoreRoots(): Promise<CertEntry[]>;
    /** Best-effort subject match via openssl; false when openssl is absent or errors. */
    private subjectMatches;
    lockDownFileArgv(path: string): string[];
    symlinkDirArgv(linkPath: string, targetPath: string): string[];
    cpuPhysicalCores(): Promise<number>;
    totalRamGb(): Promise<number>;
    gpu(): Promise<GpuInfo>;
    detectVdi(): VdiInfo;
    scratchDir(user: string): string;
    shellProfilePaths(): string[];
    envShell(): "posix";
    persistentEnvArgv(): string[];
    npmCliPath(): string | undefined;
    tlsProbeArgv(url: string): string[];
}
/** Count distinct (physical id, core id) pairs in /proc/cpuinfo. */
export declare function countPhysicalCores(cpuinfo: string): number;
/** Read MemTotal (kB) from /proc/meminfo. */
export declare function parseMemTotalKb(meminfo: string): number | undefined;